| A-Guide |
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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.
This is a Clancy product. |
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| Acoustical
Reflector Panel (Cloud) |
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A
reflective panel hung in the auditorium,
generally above the audience, that is used
to direct sound into desired zones. Often
decorative in nature. |
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| Act
Curtain |
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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. |
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| Actuator |
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(1)
Any mechanical or electrical control device
(a push button)
that initiates an action. |
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(2)
A screw jack or a hydraulic or pneumatic
cylinder used to cause an action like opening
a door. |
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| Apron |
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The
portion of stage that extends beyond the
proscenium opening. |
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| Arbor |
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A
carriage or rack that contains weights,
usually flame cut steel or cast iron, in
sufficient quantity to balance a load. |
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| Arbor
Pit |
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An
area located below an opening in the stage
floor that permits greater travel for counterweight
arbors and pipe battens. |
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| Arbor
Release |
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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. |
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| Arena |
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A
performance space with seating all round
the performers. Examples include theaters,
basketball courts, and indoor rodeos. |
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| As
Built Drawings (Final Drawings) |
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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. |
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| Audience |
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The
area of the theater where visitors sit to
view a stage performance |
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| Auditorium |
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A
hall or seating area within the hall where
the audience views a performance. |
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| Austrian
Curtain |
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A
curtain that is raised (opened) with brailed
lifting lines and is sewn with both vertical
and horizontal fullness. |
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| B |
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| Backstage |
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The
stage area that is located beyond the sight
of the audience. Usually behind curtains
and other masking devices. |
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| Banner
Winch |
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A
winch with a smooth drum designed to roll
up a cloth banner. Usually used with curtains
intended to modify the acoustic properties
of a space. |
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| Bar
Joist |
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A
beam fabricated using lightweight rolled
or fabricated sections that is used for
long spans under light loading conditions. |
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| Batten |
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A
bar, usually made from steel pipe, from
which scenery, lights and curtains are hung. |
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