US Patent: 186,419 - Draftsman's Compass


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


Quick search:	Patent number:	Patent Date:

US Patent: 186,419

Draftsman's Compass

Patentee:

John B. Pricke (exact or similar names) - Pine Island, MN

USPTO Classifications:

33/558.03

Tool Categories:

layout tools : compasses

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Patent Dates:
Applied:	Nov. 01, 1876
Granted:	Jan. 23, 1877

Patent Pictures:

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

Description:

This compass uses a second pair of arms attached to the main arms in order to ensure that the marking points remain parallel to each other and the center axis of the circle.