Tools – Miscellaneous
Patent
1994-04-22
1996-01-09
Meislin, D. S.
Tools
Miscellaneous
7145, 7166, 811761, B25B 3300
Patent
active
054819504
ABSTRACT:
A rigid head extending laterally from an adjustable handle has an elongate slot therethrough aligned with the longitudinal axis, of the handle for receiving and operating the handle of a valve. A first concave surface is formed in the upper edge of the head for pushing on the spokes of a brake wheel. The first concave surface has opposite ends of similar slope approaching ninety degrees relative to the upper edge for pushing on the spokes of a brake wheel and preventing kick-out of the tool from the brake wheel. A second concave surface is formed in the lower edge of the head for pulling on the spokes of a brake wheel. A first end of the second concave surface has a slope approaching ninety degrees relative to the lower edge. An opposite end of the second concave surface adjacent the outer edge of the head has a slope relative to the lower edge of the head which is significantly less than the slope of the first end to facilitate kick-out of the tool while the brake wheel is in motion. The second concave surface slopes to a point where it joins the outer edge of the head to define a point adapted to fit within a hole in a knuckle of a railroad car.
REFERENCES:
patent: 684858 (1901-10-01), Pearson
patent: 872271 (1907-11-01), Benet
patent: 4646378 (1987-03-01), Borden
patent: 4715252 (1987-12-01), Pella
patent: 4991469 (1991-02-01), Pella
Meislin D. S.
Norfolk Southern Railway Co.
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