Metal working – Means to assemble or disassemble – By rotation of work part
Patent
1977-12-27
1979-06-12
Jones, Jr., James L.
Metal working
Means to assemble or disassemble
By rotation of work part
29283, 81 68, 269 47, B23P 1904
Patent
active
041576080
ABSTRACT:
A fixture for the assembly and disassembly of special gears (particularly of gears of free-wheels applied to the rear wheel of bicycles) consists of a first tool which comprises an appropriately shaped, metal elongated plate, having a smooth handgrip and a functional part provided with a plurality of impressions corresponding to elements of a free-wheel unit and apt to house at least part of said elements by mating with their shape so as to prevent rotation thereof, threaded holes being provided at the center of said impressions, and at least two locking pin members apt to be screwed into said threaded holes for locking on the plate, in said impressions, the elements of the free-wheel unit having to be handled, and of a second tool of the type comprising a handle terminating with a halfmoon shaped body, to an end of which is pivoted a transmission chain section for bicycles, a notch being provided along the whole inner archway of the half-moon shaped body of said tool, for housing the periphery of a gear with which the tool is in engagement.
REFERENCES:
patent: 1150663 (1915-08-01), Cosseboon
patent: 2242080 (1941-05-01), Kurzina
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