Early Salesman Sample Cable Car Grip by Chicago Model Works button instructional classrooms

instructional classrooms

10" dia (base) x 26" H

Its compact footprint and durable glazed surface reflect a design intended for everyday use

and the backmost panel has sustained a crack

This case features a cloth pocket and an insignia inside that reads

Early Salesman Sample Cable Car Grip by Chicago Model Works button instructional classroomsc. 1890s 1900s; Chicago Model Works Chicago, IL Miniature mechanical salesman's model of a cable car grip mechanism, built to illustrate the function of the clamping system used in early cable transit. The riveted metal frame houses a lever actuated linkage that drives a central gripping assembly, mimicking the action of full scale grips used to seize and release a continuously moving underground cable. Dual cylindrical housings flank the central