ratchet wheel

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Behind local dials are electromagnets which, by means of an armature working a frame and ratchet wheel, move the hands forward every minute or half-minute as the current is sent from the standard clock.

From The Story of Electricity by Munro, John

The self-acting feed for the drill spindle is actuated by an eccentric on that spindle operating an arm, having a pawl engaging with the ratchet wheel on the lower end of the vertical feed spindle.

From Modern Machine-Shop Practice, Volumes I and II by Rose, Joshua

In one piece with the worm-wheel is a ratchet wheel l, and at m is a handle with a pawl that may be engaged with or disengaged from ratchet-wheel l.

From Modern Machine-Shop Practice, Volumes I and II by Rose, Joshua

The first impulse sent out is a long impulse and pulls up both armatures, thereby causing the pawls above and below the small ratchet wheel, shown in Fig.

From Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. by McMeen, Samuel

There was a moment’s silence, then a sudden clicking of a ratchet wheel, and Allison began to rise rapidly towards the ceiling.

From The Jester of St. Timothy's by Pier, Arthur Stanwood