международная профессиональная терминология

глоссарий

A

A-Guide

A-shaped aluminum members fixed in parallel rows for the purpose of guiding arbors or clews. They are intended for use on counterweighted systems employing compensating chains and in zones of high seismic activity. А-образные алюминиевые элементы, закрепленные в параллельных рядах для направляющих стоек или колёс (блоков). Они предназначены для использования в противовесных системах с использованием компенсирующих цепей и зон повышенной сейсмической активности.

Acoustical Reflector Panel (Cloud) Панель акустического отражения (Облако) 

A reflective panel hung in the auditorium, generally above the audience, that is used to direct sound into desired zones. Often decorative in nature. Отражающая панель размещена, как правило над зрительным залом и используется для направления звука в нужные зоны. Часто имеет декоративный характер.

Act Curtain Занавес

A curtain (sometimes designed for a specific show) that is opened to signal the beginning of a performance. The Front Curtain is often used for this purpose. Занавес (иногда предназначенный для конкретного шоу), который открывается, чтобы сигнализировать о начале исполнения. Находящийся на фронтальной части сцены генеральный занавес часто используется для этой цели.

Acting Area Зона действия
The stage area used by actors for performances. Часть сценической площади, используемая актерами для выступлений.

Actuator Привод

(1) Any mechanical or electrical control device (a push button) that initiates an action. (2) A screw jack or a hydraulic or pneumatic cylinder used to cause an action like opening a door. (1) Любое механическое или электрическое устройство управления (кнопка), которое инициирует действие. (2) Винтовой домкрат, гидравлический или пневматический цилиндр, используемый для создания такого действия, как приведение объекта в движение.

ADA

The Americans with Disabilities Act. It requires access to public spaces by people with disabilities.  Закон об американцах, имеющих инвалидность. Для людей с ограниченными возможностями требуется доступ к общественным местам.

AIA
American Institute of Architects. Американский институт архитекторов.

Altus™ Clancy Altus series rigging controllers hoists use industrial grade PLC computers, touch screen displays, and industrial grade operators that require an operator present at the console when any equipment is moving. Cues and presets can be created, modified, stored, and replayed. Targets, speeds, and positions are displayed. На подъемниках контроллеров Altus ™ Clancy Altus используются промышленные компьютеры ПЛК, дисплеи с сенсорным экраном и операторы промышленного класса, которым требуется оператор, присутствующий на консоли, когда какое-либо оборудование движется. Cues и пресеты могут быть созданы, изменены, сохранены и воспроизведены. Отображаются целевые показатели, скорости и позиции.

ANSI
American National Standards Institute. Американский национальный институт стандартов ANSI.

Apron Фартук
The portion of stage that extends beyond the proscenium opening. Фартук. Часть сцены, которая выходит за пределы просцениума (авансцены).

Apron (Forestage) Фартук (авансцена)
The area of the stage located just in front of the proscenium. Ближайшая к публике область сцены, расположенная прямо напротив зрителей (расстояние от линии  занавеса до края сцены).

Arbor
A carriage or rack that contains weights, usually flame cut steel or cast iron, in sufficient quantity to balance a load. Каретка или стойка (направляющая), которая содержит грузы, обычно огнеупорную сталь или чугун, в достаточном количестве для балансировки груза.

Arbor Pit Яма стойки
An area located below an opening in the stage floor that permits greater travel for counterweight arbors and pipe battens. Область, расположенная ниже отверстия в полу сцены, что дает большее пространство движения для противовесов и трубных планок.

Arbor Release
A part of the fire curtain rigging that permits the fire safety curtain arbor to move and the fire safety curtain to close. The release is usually controlled by the fire line system. Часть оснастки противопожарной завесы, которая позволяет закрыть противопожарный занавес. Опускание обычно контролируется системой пожарной сигнализации.

Arena Арена
A performance space with seating all round the performers. Examples include theaters, basketball courts, and indoor rodeos. Место для выступлений с сидениями вокруг исполнителей. Для примера можно назвать цирк, боксерские и баскетбольные площадки, крытые родео и некоторые театры (Колизей, например).

ASA
Acoustical Society of America. Акустическое общество Америки.

As Built Drawings (Final Drawings) 3D-модель (макет)
Equipment or layout drawings that show equipment as it was actually built and intended to be installed. They may not reflect actual, as installed, conditions. Макет или компоновочные чертежи, которые показывают оборудование, поскольку оно было фактически построено и предназначено для установки. Могут быть общими и не отражать всех фактических, установленных условий.

ASME
American Society of Mechanical Engineers. Американское общество инженеров-механиков ASME.

ASTC
American Society of Theater Consultants. Американское общество театральных консультантов ASTC.

ASTM
American Society for Testing of Materials. ASTM Американское общество по тестированию материалов.

Audience Аудитория 
The area of the theater where visitors sit to view a stage performance. Площадь театра, где сидят зрители, чтобы посмотреть сценическое представление.

Auditorium Зал
A hall or seating area within the hall where the audience views a performance. Зал или зона с сидячими местами в зале, где зрители смотрят представление.

Austrian Curtain Австрийский занавес
A curtain that is raised (opened) with brailed lifting lines and is sewn with both vertical and horizontal fullness. Занавес, который поднимается (открывается) с помощью гибких подъемных линий и изготавливается с вертикальной и горизонтальной полнотой.

AWG American Wire Gauge (ранее Brown & Sharp)
Used to identify wire diameters. Используется для идентификации диаметров проволоки.


B

Backstage За кулисами
The stage area that is located beyond the sight of the audience. Usually behind curtains and other masking devices. Часть сцены, которая находится за пределами зрителей. Обычно за шторами и другими маскирующими устройствами.

Balcony Балкон
A raised platform extending out from a wall, often used for additional rows of seats in an auditorium. Приподнятая платформа, простирающаяся от стены, часто используется для размещения дополнительных рядов сидений в зале.

Banner Hoist Баннерный подъемник
A hoist with a smooth drum designed to roll up a cloth banner. Usually used with curtains intended to modify the acoustic properties of a space. Подъемник с гладким барабаном, предназначенным для накручивания баннерной ткани. Обычно используется с занавесами, предназначенными для изменения акустических свойств пространства.

Bar Joist Ферма 
A beam fabricated using lightweight rolled or fabricated sections that is used for long spans under light loading conditions. Балка, изготовленная с использованием легких прокатных или сфабрикованных секций, которые используются для длинных пролетов в условиях легкой нагрузки.

Batten Штанкет
A bar, usually made from steel pipe, from which scenery, lights and curtains are hung. Балка, обычно сделанная из стальной трубы, на которой висят декорации, световое оборудование или одежда сцены.

Batten Clamp Хомут для штанкета
See "Pipe Clamp."

Beam Балка
A structural member (usually horizontal in a building structure) that resists bending. Конструктивный элемент (обычно горизонтальный в структуре здания), который сопротивляется изгибу.

Beam Clamp Крепление балки
A device from which a load is hung, attached to the flange of a steel beam without altering the beam in any way. Устройство, несущее нагрузку, прикрепляется к фланцу стальной балки без какого-либо изменения балки. Фланец - плоская деталь квадратной, круглой, или иной формы с отверстиями для болтов и шпилек, служащая для прочного (узлы длинных строительных конструкций, например, ферм, балок и др) соединения.

Bearing Подшипник
A device that supports a shaft or other machine part while minimizing friction.  Устройство, которое поддерживает вал или другую часть машины при минимизации трения.

Belaying Pin Страховочный штырь (ограничитель)
A wood or steel rod, inserted into a hole in a pin rail, that secures ropes attached to a load. They are typically removable. Деревянный или стальной стержень, вставленный в отверстие в штифте, который закрепляет веревки, прикрепленные к нагрузке. Обычно являются съемными.

Bi-Parting Drape Двухполотный занавес
A curtain that opens from the center to either side. Занавес, который открывается из центра на обе стороны.

Black Box Черный ящик (карман)
A room (often painted black) that is intended for performance and lacks a permanent configuration, seating, or fixed performance area. Provision for performance lighting and props or curtains is often made. Помещение (часто окрашенное в черный цвет), которое предназначено для работы и не имеет постоянной конфигурации, места для сидения или фиксированной производительности. Часто предусматривается для размещения и хранения осветительного оборудования, реквизита или одежды сцены.

Block Блок
An assembly that consists of one or more sheaves and axles in a housing. Устройство в сборе, состоящее из одного или нескольких шкивов (колес с ободом или канавкой по окружности) и осей в едином корпусе.

BOCA
National Building Code. Has been superseded by the IBC. Национальный строительный кодекс BOCA. Был заменен IBC.

Boom Стрела (вынос)
A vertically mounted pipe used for stage lights. Вертикально смонтированная труба, используемая для освещения сцены.

Border Curtain Пограничный занавес (падуга)
A curtain used to define the top limit of the stage and to mask or hide lights and unused scenery and curtains. Часть одежды сцены, используемая для определения верхнего предела сцены и маскировки или скрытия осветительного оборудования, а также неиспользуемых декораций и занавесов.

Box Boom (возм. Башни бокового попланового освещения)
Originally a vertical pipe in a seating box used for stage lights, but now used to indicate any side lighting position. Первоначально вертикальная труба в сидении, используемая для освещения сцены, но теперь используется для обозначения любого положения освещения в боковом направлении.

Brail Curtain Занавес Brail
A curtain that is raised (opened) with brail type lift lines and is sewn flat or has horizontal fullness. Занавес, который поднимается (открывается) с помощью лифтовых шнуров (тросов) типа Brail, сшит или имеет горизонтальную заполненность.

Brail Lines Шнуры Brail
Lifting lines that pass through a row of rings sewn to the back of the curtain and attach at the curtain bottom. The curtain folds up when the lines are pulled. Подъемные линии (шнуры), проходящие через ряд колец, сшитых к задней части занавеса и прикрепленных к дну занавеса. Занавес сгибается, когда шнуры тянутся.

Brail Winch Лебедка Brail
A winch designed to work as part of a rigging system to raise and lower a curtain from its bottom support using cables run through rows of rings on the back of the curtain. Лебедка, предназначенная для работы в составе системы такелажа, чтобы поднимать и опускать занавеску с ее нижней опоры, используя тросы,, проходящие через ряды колец на задней стороне занавеса.

Breaking Strength Разрывная нагрузка
The load at which a failure occurs. Нагрузка, при которой происходит сбой. Предел прочности.

Bridge-Lighting Софитный мост
A catwalk that crosses from one side of the stage to the other, used for lighting fixtures and operator access. It may be dead hung or flown. Подиум, который пересекает сцену с одной стороны на другую, используется для размещения светильников и доступа оператора. Он может быть стационарным или подвесным.

Bridle Талреп
An assembly that splits a lift line into two separated attachment points. Used to support trusses or to provide extra support along a pipe batten to limit deflection. Дословно-уздечка. Устройство которое разделяет трос подъема на две отдельные точки крепления. Используется для подвеса ферм или для обеспечения дополнительной регулировки фермы по высоте для ограничения горизонтального отклонения, стягивания и выбирания слабины такелажа.

Building Code Строительный кодекс
A set of municipal, state, or federal guidelines for the design and construction of buildings. Набор муниципальных, государственных или федеральных руководящих принципов для проектирования и строительства зданий.


C

Cable Clip Кабельный зажим
A device to mechanically fasten cables, consisting of bolts, nuts, and pads that bear against the cable to prevent crushing and slippage. Устройство для механической фиксации кабелей, состоящее из болтов, гаек и прокладок, которые прижимаются к кабелю, чтобы предотвратить дробление и проскальзывание.

Cable Cradle Кабельная подставка
A device that supports an electrical cable loop and prevents sharp bends. It often has a hole for attachment of a lifting line. Устройство, которое поддерживает петлю электрического кабеля и предотвращает резкие изгибы. Он часто имеет отверстие для крепления подъемной линии.

Cable Reel Кабельный барабан
A drum for holding hose or various types of electrical cable that winds using springs or a motor. The hose or cable is connected at the hub of the drum so the connection to other systems are maintained as the drum rotates. Барабан для удержания шланга или различных типов электрического кабеля, который использует пружины или двигатель. Шланг или кабель подключены к ступице барабана, так что соединение с другими системами поддерживается при вращении барабана.

Cable Roller Кабельный ролик
A roller assembly designed to prevent moving cables from contacting any part of a building or adjacent rigging. Not intended to change cable direction or carry loads. Роликовый узел, предназначенный для предотвращения контакта движущихся кабелей с любой частью здания или прилегающей оснасткой. Не предназначен для изменения направления кабеля или переноса грузов.

Capstan Winch Шпилевая лебедка
A winch, usually portable, with an un-grooved drum designed to assist in moving heavy loads. An operator wraps a rope around the drum and pulls to tighten the rope on the drum. Friction causes the rope to travel with the rotating drum. Лебедка, как правило, портативная, с барабаном без бороздки, предназначенным для перемещения тяжелых грузов. Оператор обматывает веревку вокруг барабана и тянет затянуть веревку на барабане. Трение заставляет веревку перемещаться с вращающимся барабаном.

Carriage
See "Arbor." Смотри "беседка"

Catwalk Помост
A walkway for access to a distant point (usually overhead). Дорожка для доступа к отдаленной точке (обычно над головой).

Certificate of Occupancy Акт о приемке здания в эксплуатацию
Certificate issued by a building inspector with local jurisdiction that certifies that a building meets codes and is safe to use. Выдается инспектором здания с местной юрисдикцией, который удостоверяет, что здание соответствует кодам и является безопасным для использования.

Certified Rigger Сертифицированный такелажник
A rigger who has passed the "Entertainment Technician Certification Program" (etcp) exam and is recognized as competent to do rigging for a period of time. This certification is based on both experience and a written test. Regular re-certification is required. Такелажник, прошедший экзамен «Сертификация специалиста по технике развлечений» (etcp), и признанный компетентным для выполнения работ в течение определенного периода времени. Эта сертификация основана на практическом экзамене и письменном тесте. Требуется регулярная повторная сертификация.

Clew Device Скручивающее устройство 
That connects several ropes or cables to one, usually stronger, rope or cable. Соединительное устройство, которое соединяет несколько веревок или кабелей с одним, обычно более прочным, канатом или кабелем.

Clutch Clutches Муфты сцепления
Clutch Clutches are couplings that permit selective engagement and disengagement of shafts, such as a gearbox shaft from a drum. Муфты сцепления, являются муфтами, которые допускают избирательное зацепление и размыкание валов, таких как вал коробки передач от барабана.

Compensating Line Компенсационная линия 
A system of light and heavy chains or cables that balances lift line weight as it transfers from the batten to the arbor side of a moving counterweight set. Система легких и тяжелых цепей или тросов, которая уравновешивает подъем веса линии, когда она переносится с борта на сторону беседки подвижного противовеса.

Competent Person Компетентное лицо
The ESTA/ANSI Series E1 standards definition is a person who is capable of identifying existing and predictable hazards in the workplace, and who is authorized to take prompt corrective measures to eliminate them. По определению стандартов ESI серии ESTA / ANSI - это лицо, способное выявлять существующие и предсказуемые опасности на рабочем месте и которому разрешено принимать быстрые корректирующие меры для их устранения.

Continental Seating Континентальное размещение
A seating arrangement with access aisles only at the ends. Рассадка с доступам к проходам только на концах.

Contour Curtain Контурный занавес
A brail or Austrian curtain rigged so that each lift line may be operated separately to form different shaped openings. Занавес Brail или австрийский занавес, скрепленный так, что каждая лифтовая линия может управляться отдельно, чтобы образовывать различные профилированные просветы.

Counterweight Противовес
(n) Weights, usually flame cut steel or cast iron, that are placed in counterweight arbors to balance the weight of loads hung on battens. (v) The act of adding or removing weight from a set in order to achieve a balanced system. Веса, обычно вылитые из стали или чугуна, которые помещаются в противовесы для балансировки веса нагрузок, подвешенных на рейках. (v) Действие добавления или удаления веса из набора для достижения сбалансированной системы.

Counterweight Arbor Противовес беседки
See "Arbor." См."Беседка"

Counterweight Assist Hoist Противовешенная лебедка
An electric hoist whose capacity is augmented by the addition of a counterweight arbor. Вспомогательный подъемник Электрическая таль, мощность которой дополняется добавлением противовеса.

Counterweight Rigging Такелаж
A rigging system where the load is balanced by a counterweight so that only a small force is required to overcome friction and move the load. Такелаж Система такелажа, где нагрузка уравновешивается противовесом, так что требуется лишь небольшая сила для преодоления трения и перемещения груза.

Counterweight Set Система противовесов
A rigging system where the load is balanced by a counterweight so that only a small force is required to overcome friction and move the load. Система такелажа, в которой нагрузка уравновешивается противовесом, так что требуется лишь небольшая сила для преодоления трения и перемещения груза.

Crash Rail Аварийная рейка
See "Stop Batten." см.Ограничительная доска

Cross Aisle Поперечный проход
A major aisle running parallel to the stage that is used as an entryway into the theater. Большой проход, идущий параллельно сцене, который используется в качестве входа в театр.

Cross Over Переход
A hallway, outside of the stage house or behind the masking curtains, to allow performers and technicians to move from one side of the stage to the other without being seen. Переход по коридору, за пределами сцены или за кулисами, позволяющий исполнителям и техникам перемещаться с одной стороны сцены на другую, не будучи замеченными.

CSI Construction Specifications Institute. Институт строительных материалов CSI.

Curtain Занавес
Any fabric panel that is hung as part of a scene or to mask unwanted views. Любая панель ткани, которая висит как часть сцены или маскирует нежелательные виды.

Curtain Track Дорога занавеса
A formed or extruded shape that contains moving carriers and supports drapery. They often have a cord or other means to open and close the drapes. Формованная или экструдированная конструкция, которая содержит движущиеся каретки и поддерживает драпировку (занавес). Оснащена тросом или другим средством для открытия и закрытия занавеса.

Cyclorama Циклорама
(1) Curtain at the rear of the performance area used to represent the sky or distant areas. (2) Set of borders, legs, and drops used to define the limits of a performance area. (1)Занавес заднего плана действия, используемый для представления неба или отдаленных областей. (2) Набор падуг, кулис и задников, используемых для определения пределов области действия (горизонт).


D

D/d Ratio It is the ratio between the tread diameter (D) of the drum or sheave and the cable diameter (d). Smaller ratios reduce the service life of cables.

Dash Pot An adjustable, hydraulic ram that smoothly slows and stops a moving object.

Dead End The end of a rope or part of a device that is not active or load carrying.

Dead Haul Pulling a load that is not counterbalanced.

Dead Hung Directly fixed to the structure or attached at a fixed elevation using chain, rods, or cable.

Dead Load The permanent or non-removable part of a system load (i.e. the weight of a batten versus the load hung from it).

Design Life The minimum expected life of the system expressed in hours or cycles of operation.

Design Load The load that a system or equipment item is designed to carry. This load can be made up of dead loads, live loads, dynamic loads, and environmental forces.

Direct Struck

Limit A limit switch that is actuated directly by a moving device passing by the switch location.

Diversity A factor applied to power requirements for dimming and stage machinery. This reduces the amount of available power because it is very unlikely that all dimmers and stage machines will be in use, or at full power, at the same time.

Double Purchase A rope or cable that passes from a lifting device (arbor, winch, or person) over a block, to a block attached to the load, and tied off at the previous block, is double purchased. The system allows twice as much load to be raised for a given effort, but the rope or cable must be pulled twice as far, so total work done remains the same.

Down Stage The area of the stage that is closest to the audience. See "Raked Stage."

Drive Shaft A rotating component that conducts power from an engine or other power source to a drum, pulley, or gear.

Drop Curtain A curtain that is painted or constructed in a manner that makes it a part of the scenic environment.

Drum Hoist A hoist with a drum for wrapping cable as it is taken up. One end of the drum is typically supported by a bearing while the other end is connected to the output shaft of the gear box.

Dynamic (Live)

Load The loads in a system that change in magnitude, direction or location over time.


E

Egress A path or walkway leading to an exit.

Electric A name given to a pipe batten used to support lighting lighting equipment in a theater.

Elevation The height above or below an arbitrary point in a building (generally the stage floor).

Elevation

Drawing A drawing that shows the vertical face of an object or system..

Emergency

Stop Circuit This should be a failsafe, separately wired circuit in rigging control that stops any and all controlled machinery in an emergency. The circuit can be triggered by depressing Emergency Stop pushbuttons and by various automatic sensors and limit switches. To re-start it is necessary to take one or more specific actions to begin motion.

Environmental

Forces Conditions in the environment which have an affect upon the strength, size, or effective life of equipment. Examples of forces include snow loads on roofs and wind against the side of a building.

Equal Pitch All grooves in the sheave have the same pitch diameter so that the center of each line travels the same distance as the sheave rotates one revolution.

ESTA Entertainment, Service and Technology Association.

ETL Link Electro Thermal Links are fusible links which react (melt) when the ambient temperature reaches 165º F or when subjected to an imposed electrical impulse.


F

Factor of Safety The ratio between the rated working load of a component or system and its minimum ultimate breaking strength.

Failsafe A device or design that fails to a safe state. It does not mean that it will not fail.

Fail Safe Brake A brake that will fully engage and resist motion of the device if power or control signal is lost. For example: a spring applied, electrically released brake.

Fall Arrest System A device that engages to halt a person or other load that has exceeded a predetermined speed, indicating a falling condition.

Field Check A visit made to an installation project for the purpose of obtaining project measurements, checking its status, and finding potential conflicts.

Fire Safety

Curtain A curtain that closes automatically in event of a fire to prevent heat, smoke and flames on the stage from reaching the audience. The curtain may be closed when the space is not occupied to prevent unauthorized access and to prevent falls from the edge of the stage.

Fireline Firelines are installed around the perimeter of a stage-proscenium arch to hold the fire safety curtain open. Firelines connect the curtain to all manual electrical and heat activated devices that release the safety curtain.

Fixed Speed A winch that operates at a single speed with no ability to modify the speed. Fixed speed winches are typically used for low speed setup or heavy load applications.

Fleet Angle The angle formed between the centerline of a sheave or drum and another sheave or fixed point.

Floor Block Pulley mounted at the floor to hold a rope or cable in position and to reverse its direction. Floor blocks meant for rope often incorporate a means of adjustment to accommodate changes in length due to loads or environmental conditions.

Flown Suspended in a manner that permits the equipment to be raised and lowered.

Fly The act of lifting scenery, lights, and curtains.

Fly Gallery A gallery or catwalk above the stage floor from which counterweight and hemp (rope) rigging is operated.

Fly Loft The space between the roof and the performance area that is not visible to the audience.

Forestage The portion of the stage located in front of the proscenium or main curtain line.

Free End Ball A heavy ball that is attached to the end of a fire line and wrapped around the fire safety curtain operating line to prevent closure of the curtain. When tension is release in the fire line the weight of the ball causes it to fall free, releasing the curtain.

Front Curtain

(House Curtain) A curtain used to define the stage location to the arriving audience. It is often the curtain closest to the audience and may also perform the function of an "Act Curtain."

Front of House (FOH) A generic term for areas of the theater other than the stage, usually referring to the audience and lobby areas.

Fullness Additional fabric that is added to a curtain to be sewn into pleats. 100 percent fullness means that the curtain would be double its finished width before the pleats are made.

Fusible Link A device consisting of two metal parts that are soldered together. The solder melts at a predetermined temperature allowing the two halves to separate.


G

Gallery Any platform above and to the side of the stage floor.

Gearmotor The combination of a gearbox and motor in a single unit. The motor may also incorporate a brake.

Grade 5 Bolt A medium carbon steel bolt that has been quenched and tempered for increased hardness and tensile strength in accordance with SAE Specification J429. The heads of bolts rated as Grade 5 have three lines at 120º intervals on their heads.

Green Room A lounge for performers and/or technicians.

Gridiron (Grid) An open floor, usually made from light steel channels or grating, that is located near the roof steel. It provides mounting locations for rigging equipment and access to that equipment for inspection and maintenance.

Guide To control the movement of rigging devices by means of slides or rollers moving in tracks or on stretched cables.

Guide Shoe A rolling or sliding device that connects a counterweight arbor or sliding tension block to guide rails in order to guide its travel.

Guide Rails Components that confine and control the movement of counterweight arbors and tension floor blocks. See "J-Guide, A-Guide, Lattice Track, T-Guide, and Wire Guide."

Guillotine A curtain that runs the width of the proscenium.


H

Hand Line A line, usually rope, that is pulled by hand to lift or control the movement of a load.

Hand Winch A device that consists of a hand crank that rotates a drum or pulley through a torque multiplying / speed reducing mechanism.

Head Block A pulley mounted to support steel that changes the direction of lift and operating lines between the loft blocks and an arbor or winch.

Head Block

Beams Structural framing designed to support the head blocks and all related loads. Usually consisting of one or two beams and associated bracing members.

Heat Resisting

Border A curtain that is placed between stage masking curtains and a heat source, such as a stage light, to prevent a fire. The heat resisting curtain employs a fabric which is fire proof, rated for high temperatures and spreads the heat from hot spots.

Hemp (Rope or

Spotline)

Rigging A rigging system that employs ropes and sandbags instead of counterweight arbors or other devices. Usually used for temporary rigging.

Hoist A geared mechanism, either hand operated or motorized, for use in raising (vertical movement only) equipment. The gearing produces a mechanical advantage in speed and load capacity.

Hoisting Machine A powered machine used for raising, lowering, and holding objects.

Holding Brake A brake use to hold a load in a static condition as opposed to decelerating a load to a stop and holding the load.

House See "Auditorium."

House Curtain See "Act Curtain"

House

Left/Right The sides of an auditorium as seen by an audience member while facing the stage.

HVAC Air handling equipment in a building which consisting of Heating, Ventilation, and Air Conditioning.

Hydraulic

Descent Control A device used to control the speed of a closing fire curtain. These devices include hydraulic dampers, speed regulators, and dashpots.


I

IBC The International Building Code. A model national building code that was created to replace regional building codes such as BOCA and UBC.

Idler A pulley designed to support one or more cables but not to make direction changes.

Incremental

Block A multi-grooved pulley that supports and changes the direction of cables between the load and the head block and that supports other, more distant, lines in the set.

Index Light A series of lamps in a special housing designed to illuminate the locking or pinrail area.

Index Strip A device located at the front of a locking rail to hold line set identification labels.


J

J-Guide J-shaped aluminum members fixed in parallel rows for the purpose of guiding arbors or clews.


L

Lattice Track A parallel pair of angles or other structural members that guide an arbor or clew. Low friction slides or roller guides are placed on both sides of the device to be guided.

Lead Line See "Lift Line."

Leg Curtain A curtain used to define the side limit of the stage and to mask or hide actors, lights, and unused scenery in the off stage area (wings).

Lift Line Any rope or cable located between a load and a winch or counterweight arbor.

Lighting Bridge A walkway across the stage (fixed or flown) where lights are hung and where they may be adjusted and maintained.

Line Set A system consisting of one or more lift lines and related components operating together to lift, lower, or suspend a load.

Limit Switch An electro-mechanical switch that trips (changes state) when contacted by a moving device. They are used to halt the motion of a winch or other electro-mechanical device.

Line Shaft Winch Winch with a series of cable drums connected to a gearbox by a common shaft.

Live End The end of a rope or part of a device that is active or load carrying.

Live Load That part of a system load that may be added or deleted (i.e. lights hung from a pipe batten).

Load Side

Brake (Load

Brake) A brake in the power train of the winch that is attached to the same shaft as the load, at the output side of the gearbox.

Loading Gallery

(Loading Bridge) A gallery above the stage floor where technicians add and remove counterweights from the arbors. Usually located so technicians have access to arbors when battens are at their lowest positions.

Load Sensing A mechanical or electrical device that senses the load in a cable or block and produce a signal that can be read by a controlling device.

Locking Collar A fastening device located on the counterweight arbor rods above the upper spreader plate and counterweights and intended to help keep the weights in the arbor during a hard impact.

Locking Rail

(Loading Rail) A structural railing designed to support rope locks in a way that allows them to be easily operated. It holds the out of balance loads from the rigging system held by rope locks. It also serves as a safety railing for operators and other personnel.

Loft Block A pulley mounted to the gridiron or support steel that supports and changes the direction of a lift line cable between the load and the head block.

Loft Well (1) An opening in the gridiron designed for the attachment of loft blocks so that lift lines can pass through it.

2) An opening in the gridiron designed so cables can pass through from blocks mounted above without rubbing against the opening.

Loge The part of a theater mezzanine closest to the stage.


M

Main Curtain See "Front Curtain."

ManualMaker™ This software program from Clancy facilitates the creation custom operation and maintenance manuals for stages using Clancy hardware. Sections are written in Microsoft Word for most standard Clancy products.

Masking A set of curtains or scenic elements used to define the visual limits of a performance area.

Mechanical Systems Equipment needed to make a building structure functional, including plumbing, fire protection, and HVAC.

Mezzanine 1. The lowest balcony in a theater.

2. A low-ceilinged story located between two main stories in a building.

Motor (Primary)

Brake A brake that is mounted at the motor. It has a low torque capacity and fast response. Used for normal stopping and holding duty on a motorized hoist.

Motorized

Rigging A theatrical rigging system using powered winches and other devices to move equipment rather than muscle power.

Mouse To wrap the end of a rope, cable or turnbuckle to prevent it from unwinding.

Mule Block A pulley that supports and changes the direction of one or more cables traveling between loft blocks and head block.

Mule Winch See "Capstan Winch."

Multi-Cable Electrical cable (borderlight cable) with multiple conductors that conducts electrical power to multiple circuit wire ways and boxes on the stage. At least one conductor must be used as a grounding wire.

Multi-Line Block Any block that can support more than one line. See "Incremental Block" and "Multi-Sheave Block".

Multi-Sheave

Block A block with more than one sheave, each of which can support and change the direction of a rope or cable. Sheaves can be held by a common shaft or by multiple shafts within a common housing.


N

NEC The National Electrical Code (USA)

NEMA National Electrical Manufacturers Association.

NFPA 101 The Life Safety Code.

Nicopress® A registered trademark of the National Telephone Supply Company, used to describe compression type sleeves placed at the end of a wire rope to interconnect two ropes or to form an eye at the end.


O

Off Stage The stage floor area that is not a part of the acting area and is not visible to the audience.

Olio Curtain A curtain located between the "Front" or "Act" curtains and the "Rear" curtain that closes off a portion of the acting area for more intimate presentations. It is often colored or decorative.

On Stage The portion of the stage area visible to the audience, usually defined by masking curtains, scenery, an orchestra shell, or by lighting.

Orchestra (1) A group of musicians who play instrumental selections (2) The portion of the auditorium on the main floor that is closest to the musicians and the acting area.

Orchestra Lift A moving platform that is used to adjust the elevation of the musicians in relation to the stage and auditorium. Usually operates within the confines of an orchestra pit.

Orchestra Pit A depressed area between the stage and audience seating area where musicians sit, so the audience can hear the music and see the performance over the heads of the musicians.

Orchestra Pit

Filler Removable platforms that are used to close off the orchestra pit at the level of the stage or auditorium.

Orchestra Pit

Lift A section of the orchestra pit floor that may be raised and lowered by some mechanical (typically motorized) means.

Orchestra Shell An enclosure on stage, consisting of walls and a ceiling that reflects sound into the auditorium. Usually decorative in nature.

Over Balance

Bar System In this system the curtain and counterweight are balanced so that the curtain can be raised and lowered manually with a minimum of effort. A weighted bar is held above the upper batten of the fire safety curtain by a hinged mechanism. The hinged mechanism opens when the fire line is released, so that the weighted bar slides down the center lift lines to rest on the upper batten. This makes the curtain heavier than the counterweight and causes it to close.

Over Speed Brake Any brake that is controlled to recognize when the speed exceeds a preset threshold and then acts to stop the controlled load.

Out-of-Balance A condition that exists when the weight of a batten, fittings, and attached loads do not equal that of counterbalancing equipment such as counterweight and an arbor. For safe and efficient use, manually operated sets should be balanced to within 50 pounds of neutral.

Outrigger A barrier device that protects counterweight arbors from scenery, etc. that may be leaned against them. Often also supports index lights.


P

Paint Frame A rigid frame, usually made of wood, to which drops and flats may be attached vertically for painting. They are normally rigged to be raised and lowered so painters can reach all areas of the frame.

Parking Brake See "Holding Brake".

Pendant A hand held controller that is attached to an electrical cable so the operator can move about to obtain better visibility of the devices being controlled.

Pileup Winch Winch with a drum that has a narrow slot to contain the cable in a single vertical layer. The speed and load capacity varies with each layer of cable. Also called a Yo-Yo winch.

Pinrail A railing with holes to accept belaying pins. May also act as a safety railing at the edge of a gallery or walkway.

Pipe Clamp Clamping device that bolts around a pipe for attachment of chain or cable hangers.

Pipe Grid Horizontal structure hung over a stage or auditorium to support lights and scenery. Made from pipes crossing on right angles at set intervals.

Pipe Weight The counterweight needed in an arbor to keep an empty batten evenly balanced.

Pitch Diameter Diameter of a sheave or drum measured from the center line of the cable wrapped around it.

Pivot Block A pulley designed to adjust to structures at odd angles.

Plan Drawing A drawing that shows the layout or top view of a construction or object.

Point Hoist A single line winch, used singularly or in groups, to hold a load at a specific point over the stage. They are the motorized equivalent of spot lines, providing the greatest flexibility possible in automated rigging (Similar to a dimmer per circuit in lighting).

Portal A portal consists of a header (border) and tabs (legs) that can be moved to adjust the size and shape of the proscenium opening to fit various performance needs. It is usually located just up stage of the front curtain and may have provision for mounting lights.

PowerAssist® These hoists are designed to drive existing or new counterweight sets by using a closed loop, proprietary rope/chain arrangement to operate between zero pounds up to 1,000 pounds out of balance from the arbor.

PowerLift® A J.R. Clancy Product. See "Zero Fleet Angle Hoist."

Purchase Line See "Hand Line."

Proscenium The dividing wall or barrier between the audience and the stage.

Proscenium Arch The opening in the proscenium through which the audience views a performance.


R

Raked Stage A sloped platform that is lower near the audience for better visibility and higher at the rear, providing the illusion of distance. This is the source for the terms "Down Stage" and "Upstage."

Recommended

Working Load The maximum load which J.R. Clancy, Inc. recommends be applied to current, listed products which are in "like new" condition and which have been properly installed, maintained, and operated. "Rated Load," "Safe Working Load," and "Working Load Limit" are similar terms used by other manufacturers.

Resultant Load A single load resulting from the combination of two, or more, forces acting on an object.

Reverse Bend Passing a rope over a series of blocks so the rope is bent in opposing directions.

Rigging All of the hardware used to lift, lower, and hold performance equipment on or above a stage.

RiggingWriter® This software program from Clancy facilitates the creation of custom rigging specifications based on using Clancy hardware. Sections are written in Microsoft Word and are available for most standard Clancy products.

Riser (1) The vertical distance between one step and the next.

(2) Platforms located one step apart so that standing or seated people can see or be seen.

(3) An electrical diagram indicating wiring for systems, e.g. power supply for a hoist.

Road House A theater used for touring attractions that stay for a short period and bring some, or all, of their theatrical equipment with them.

Rope Lock A cam operated device that clamps the hand line that is attached to an arbor in order to prevent movement. Designed to hold the unbalanced load in a set.

Rotary Limit

Switch A device containing a driven rotating shaft that contacts one or more switch contacts as it rotates.

Run-Away Theater jargon which indicates an out of balance batten that is out of the operator's control.

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S

Safe Working

Load See "Recommended Working Load (RWL)."

Safety Chain 1) A secondary support line, usually of chain, that supports a fire curtain or other device when the primary support cable becomes slack for any reason. (2) The extra weight of fire curtain safety chains helps the fire curtain accelerate at the start of its travel.

Safety Factor 1) This is the ratio between "Recommended Working Load" and minimum, or average, failure rating that must be furnished above the RWL to account for all of the uncertainties. These can include the actual operating load, shock loads, variations in materials and manufacturing processes, environmental conditions, accuracy of the design theory, and whether failures would endanger human lives.

Safety

Inspection A term used to identify the inspection of theater and entertainment spaces and equipment for the purpose of finding possible safety hazards and the need for maintenance or possible replacement of equipment.

Sag Bar A support rail, usually of wood or plastic, that keeps cables from sagging over a horizontal span due to their own weight. Sag bars don't carry any loads.

Sandbag A fabric bag that can be filled with sand and attached to rope rigging as a counterbalance to the load hung from the set.

SceneControl® Clancy SceneControl rigging controllers use industrial grade PLC computers, touch screen 3-D displays, and industrial grade operators that require an operator to be present at the console when any equipment is moving. An optional load monitoring system stops motion with the detection of any change in load. Cues and presets can be created, modified, stored, and replayed. Targets, speeds, and positions are displayed. Displays show metric units, decimal feet or feet and inches.

Scrim A curtain made from a semi-transparent material that looks solid when lit from the audience side and becomes almost invisible when back lit.

Section Drawing A drawing that reveals an imaginary view obtained by making a cut through an object.

Self-Climbing A pipe grid or batten that has an integral device for raising and lowering.

Set A system of cables, pulleys, lifting devices and battens that holds a specific set of scenic elements, curtains or lights.

Shackle A U-shaped device with holes at each end to accommodate a pin or bolt; used to connect a rope, cable, or chain to another device or a hanging point.

Sheave A component with a groove around its circumference to support and contain a rope or cable and a bearing at its center to permit rotation about a shaft.

Shock Load Loads generated by the rapid application of a force or motion to an object or by the collision of moving bodies.

Side Line Pulley A light duty block that mounts by its side to a surface. They are normally used to support fire lines and operating cords for curtain tracks.

Sight Line The edge or line of view, of what can be seen on stage from the location of the audience.

Single Point

Failure Proof Equipment

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