Hit pin for wheeled measuring device and method of assembly ther

Details Hit pin for wheeled measuring device and method of assembly ther Hit pin for wheeled measuring device and method of assembly ther

1989-11-03

1990-11-06

Cuchlinski, Jr., William A.

Geometrical instruments

Distance measuring

Of length by rolling contact

33772, G01B 312

Patent

active

049674838

ABSTRACT:
A wheel is provided for a measuring device of the type having a frame, a distance counter having an actuating lever thereon and mounted on the frame, and structure for mounting the wheel on the frame for rotation about an axis. The wheel has an annular surface for engaging and rolling against a surface along which a distance is to be measured, first and second annular side walls spaced axially with respect to the wheel axis and connected to the annular rolling surface with each side wall having a thickness in an axial direction, a hit pin, and structure for securing the hit pin to the wheel so that a part of the hit pin projects axially from one of the side walls to engage and operate the actuating lever on the counter as an incident of the wheel rotating relative to the frame.

REFERENCES:
patent: 2123360 (1938-07-01), Harris
patent: 2513817 (1950-07-01), Pennington
patent: 2817906 (1957-12-01), Hall
patent: 3251132 (1966-05-01), Hall
patent: 3432095 (1969-03-01), Jones
patent: 3442316 (1969-05-01), McMaster
patent: 3673693 (1972-07-01), Evans, Jr.

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