motor-operated

A larger or motor-operated rotating platform is typically referred to as a turntable.

Actually it is an antiterrorist patrol vehicle, and a gunner can deploy the weapon through a motor-operated roof hatch.

Casler helped develop a portable hand-cranked camera in 1900 to replace the bulky, motor-operated camera used until then.

The motor-operated pen is arranged to move the sliding contact of a potentiometer to feed back the pen position to an error amplifier.

Each contains a single autotransformer (with the exception of Roxbury, which has two), automatic circuit breakers, motor-operated air switches, and a control shed.

From 1914, a small number of British installations used motor-operated three-position semaphore signals of North American origin.

By the early 1890s more railroads began installing electric motor-operated semaphore signals, which were visible at distances of thousands of feet, during the day and under inclement weather conditions.

Motor-operated air switches bridge the section breaks at interlockings and connect the catenary and feeder continuously along one track for the entire length of an Electrical Section.

Shea was originally designed to convert from a baseball field into a rectangle field suitable for football using two motor-operated stands that allow the field level seats to rotate on underground railroad tracks.

Last summer, for instance, the company dismissed two engineers and transferred another who had challenged an order about repairs to the plant's motor-operated valves, saying the work would not be performed adequately because it was being rushed.

The outlet works for Mountain Park Dam are in the left thrust block and include three outlet pipes, trashracks, fish screens, emergency and operating slide gates, and motor-operated gate hoists.

The benefits of the system is relative encoder simplicity (a simple motor-operated camwheel closing and opening relay contacts generates the pulse train) and the ability to use the same signal for track occupancy detection.

The General Railway Signal Company's versions were known as the "Type S, SA, SA-1 and SC", the last having a sequential operating mechanism that could be used to directly replace motor-operated semaphores without any changes in system wiring.