Machine element or mechanism – Gearing – Toothed gear and recirculated unconnected elements
Patent
1975-04-18
1976-07-20
Wyche, Benjamin W.
Machine element or mechanism
Gearing
Toothed gear and recirculated unconnected elements
59 8, 59 35R, 59 31, B21L 908, F16G 1302, B21L 900
Patent
active
039699498
ABSTRACT:
A roller chain including a series of inner links each formed by a plurality of parallel inner link plates connected by a pair of hollow bushes. The inner links are connected by a series of outer links. Each outer link comprises a pair of parallel outer link plates connected adjacent the opposite ends thereof by a pair of pins. The pins on a given outer link extend through the bushes on the adjacent ends of two inner links to pivotally connect same together. The inner link plates and the associated bushes forming the inner links are fused together by a fillerless weld formed by electron beam or laser welding. The pins and the outer link plates can be similarly welded together. The resulting chain has substantially increased tensile and fatigue strength.
REFERENCES:
patent: 2155584 (1939-04-01), Bryant et al.
patent: 2512429 (1950-06-01), Jones
patent: 2844042 (1958-07-01), Mercier
patent: 2983158 (1961-05-01), Hodlewsky
patent: 3518400 (1970-06-01), Gallivan
patent: 3562888 (1971-02-01), Settle
patent: 3630097 (1971-12-01), Kuratomi
Richard J. Allen, "High Frequency--what it means to welding design," Jan. 4, 1960, pp. 42 and 43, Product Engineering.
R. R. Irving, "Laser Welding Moves up a Notch," May 25, 1967, pp. 83-85, The Iron Age.
Burke A. Russell
Tsubakimoto Chain Co.
Wyche Benjamin W.
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