Geometrical instruments – Area integrators – Electrical
Patent
1979-03-29
1980-08-26
Little, Willis
Geometrical instruments
Area integrators
Electrical
33178B, 33180R, G01B 346, G01B 518
Patent
active
042188245
ABSTRACT:
A gauge for testing guards on machines against safety standards setting minimum clearances to moving parts as a relation of the openings in the guard. The gauge is in the form of a shaft having sized ends on either end thereof related to designated gauge opening sizes. Stop collars are positioned on the shaft at fixed lengths from the respective ends such that if the end passes through the opening the stop collar must contact the guard prior to the end touching any moving part within the guard in order for the guard to be in compliance. Additionally, the stop collars are sized to allow testing of additional openings to determine the size thereof. Thus, both the sized ends and the stop collars can be used to chuck opening sizes.
REFERENCES:
patent: 988672 (1911-04-01), Stiriss
patent: 2619727 (1952-12-01), Krohn, Jr.
patent: 2767478 (1956-10-01), Adams
LandOfFree
Guard opening gauge does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Guard opening gauge, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Guard opening gauge will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1299769