US Patent: 173,802 - Improvement in Calipers and Dividers


	Home\| FAQ	Search:Advanced\|Person\|Company\| Type\|Class	Login


Quick search:	Patent number:	Patent Date:

US Patent: 173,802

Improvement in Calipers and Dividers

Patentee:

Thomas McDonough (exact or similar names) - Montclair, NJ

USPTO Classifications:

33/558.01

Tool Categories:

layout tools : calipers

Assignees:

Star Tool Company - Middletown, CT

Manufacturer:

Star Tool Company - Middletown, CT

Witnesses:

Patent Dates:
Applied:	Jan. 29, 1876
Granted:	Feb. 22, 1876

Patent Pictures:

USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Ralph Brendler

Description:

This design features a new way of fixing the legs in a calipers. In addition to the usual "firm joint", these calipers also have a thumbscrew to hold them in position.