Chain drive including sprocket having alternate wide and narrow

Details Chain drive including sprocket having alternate wide and narrow Chain drive including sprocket having alternate wide and narrow

1978-02-09

1979-11-20

Scott, Samuel

Machine element or mechanism

Gearing

Toothed gear and recirculated unconnected elements

74245R, F16H 5530, F16G 1302

Patent

active

041746422

ABSTRACT:
A chain drive includes a sprocket rotatable in a plane and comprising an even number of wide and narrow tapered teeth and a flexible chain comprising successive links having alternate wide and narrow tooth-engaging link openings, with tooth width and link-opening width being measured in a direction transverse to the plane of sprocket rotation. The arrangement ensures proper registration and engagement of the link opening of each oncoming link with a tooth of appropriate width despite displacement of the oncoming chain flight from the plane of sprocket rotation and thereby prevents disengagement of a loose chain from the sprocket or breakage of a tight chain by the sprocket.

REFERENCES:
patent: 257445 (1882-05-01), Lechner
patent: 536813 (1895-04-01), MacPhail et al.
patent: 586991 (1897-07-01), Curley
patent: 590649 (1897-09-01), Ribyn, Jr.
patent: 591270 (1897-10-01), Gauthier
patent: 2602343 (1952-07-01), Barrett et al.
patent: 3969947 (1976-07-01), Martin et al.

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