Indicating Calipers with Handle (1141)
Index: 1141
Year: Around 1920's ?
Maker: Indicating Calipers Co, New York
Dimensions: 28 x 13 x 2 cm
Info
Calipers with handle and trigger like spring to make quick measurements. Ranges from 0 to 70 mm.
Via a small knurled knob above the handle, a predefined measurement can be set.
This type of calipers was used by instrument (eg violin) makers to measure thickness where the spot could not be reached by regular calipers. Instrument patented by L. Kaplan in 1917.
Inscriptions:
INDICATING CALIPERS Co
NEW YORK
PAT AUG 8 1916 - FEB 25 1919
References/Links/More Info
Directory of American Tool And Machinery Patents - Ladislav Kaplan
