Automatic Devices Company

A Track & Machine
For Every Purpose

873, 873MCS Tom Thumb® Machine

Models 873 and 873-MCS were specifically designed as compact masking machines for small motion picture screens and home theaters. These mechanisms are equipped with a sprocket drive to prevent cable slippage and can be installed in virtually any location, since they occupy little space. These machines have magnetic brakes for positive stopping and are quiet in operation. Models 873-MCS and include low voltage (24 vdc) magnetic control systems for controlling from more than one location and to ease connection to automation control systems.

Fixed chain (cable) spped of 25 fpm.

Optional roller chain, Model RC-2 (#25 pitch) is available.

UL/ETL Listed

Approximate shipping weight: 35 pounds


Shaft of which shall be mounted driving sprocket delivering a cable speed of ... feet per minute. Mechanism shall include remote control switch of three-position maintained toggle type (three-button type used with Models 873-MCS) to provide reversing action at any point along the travel. Rotary limit switch assembly shall be mounted integrally with gear unit. Machine shall be equipped with idler sprockets, automatic overload protective fuse and facility for conversion to hand operation. The entire mechanism shall be mounted on base for securing to floor or other appropriate means of attachment. Model ... as manufactured by Automatic Devices Company of Allentown, PA.


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