Adjustment pitch sprocket

Details Adjustment pitch sprocket Adjustment pitch sprocket

1984-05-17

1985-12-17

Leppink, James A.

Endless belt power transmission systems or components

Positive drive pulley or guide roll

Having belt-engaging surfaces on discrete circumferentially...

474152, F16H 5512

Patent

active

045590281

ABSTRACT:
The pitch of the sprocket is adjusted by radially moving the sprocket teeth outwardly by the corresponding number of cams on a relatively rotatable adjustment plate. The adjustment plate is rotated relative to the adaptor plate that carries the teeth by two alternative apparatus: an annular array of evenly spaced holes on one plate or disc are progressively increasingly offset with respect to an annular array of holes on the other so that a conical pin pushed through two partially aligned holes will relatively rotate the two discs; or grease may be applied through a standard grease nipple to a piston-cylinder assembly inserted within overlapping slots of the two discs. The teeth, after adjustment, may be tightly clamped peripherally and radially by means of one or more wedges between at least two adjacent teeth, which wedges are clamped axially to move radially inward and peripherally wedge against the teeth.

REFERENCES:
patent: 251610 (1881-12-01), Lewis
patent: 259875 (1882-06-01), Lechner
patent: 471529 (1892-03-01), Babcock
patent: 540617 (1895-06-01), Maxon
patent: 587848 (1898-02-01), Morrison
patent: 598654 (1898-02-01), Cleland
patent: 639002 (1899-12-01), Titus
patent: 708232 (1902-09-01), Jackling
patent: 1496032 (1924-06-01), Sleeper
patent: 1614266 (1927-01-01), Tschappat
patent: 1986270 (1935-01-01), Kegresse
patent: 2552179 (1951-05-01), Kamp
APC 465,945, Aubert, Jun. 1, 1943.

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