Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1977-05-18
1978-06-20
DiPalma, Victor A.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
29434, 74410, 74801, 228155, B23P 1514, B23P 1900
Patent
active
040953238
ABSTRACT:
Apparatus and method for gear tooth alignment by strain in order to minimize unbalanced loading of the gear teeth of a two stage parallel or branched gear system. Two hardened and separately ground gears are fitted with an easy fit between the shaft of one gear and the bore of the other and welded to make a compact cluster. The welded area develops a weakness resulting from being annealed due to heating in the welded zone. After assembling, the output shaft is locked to the gear train structure, the input gear is loaded slightly greater than the designed maximum load, causing the stress to exceed the yield point at the annealed welded area. A permanent deformation of all gears results with work hardening of the welded area during one cycle and a desired permanent repositioning of the teeth occurs resulting in reorientation of the gear teeth of the gears in mesh in the cluster.
REFERENCES:
patent: 3144790 (1964-08-01), Davis, Jr. et al.
patent: 3241392 (1966-03-01), Hardy
patent: 3245279 (1966-04-01), Baker
patent: 3355789 (1967-12-01), Tetsull
patent: 3750263 (1973-08-01), Satzler et al.
DiPalma Victor A.
Lall Prithvi C.
McGill Arthur A.
Sciascia Richard S.
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