speed gear

noun

1. an adjustable gear for driving a machine at various speeds.

Example Sentences

Remarks.—The feature of this C.B. type, which distinguishes it from the Astra ships of about the same size, is the arrangement of the propellers and the use of a 2 speed gear in connection with these.

From Project Gutenberg

A full roadster would have the handles a little higher relatively to the saddle, and would be provided with mud-guards, free-wheel and sometimes a gear-case and variable speed gear.

From Project Gutenberg

The action of the human motor is, however, so entirely different from that of a mechanical motor that it is easy, without practical experience, to over-estimate the value of a variable speed gear.

From Project Gutenberg

Too often the school runs on low speed gear when it ought to be running on high.

From Project Gutenberg

Instructions for using and adjusting Singer sewing machines 71-101 and 71-103 high speed, gear driven feed for making straight buttonholes, with square barred ends.

From Project Gutenberg