Harvesters – Motorized harvester – With selective control of drive means
Patent
1976-03-11
1978-01-17
Kinsey, Russell R.
Harvesters
Motorized harvester
With selective control of drive means
192 11, A01D 6908, A01D 6910
Patent
active
040684520
ABSTRACT:
A braking arrangement for use with rotary mowers of the type comprising a pair of spaced apart arbors, each supporting for rotation a spindle having a mower blade mounted on the lower end thereof. A driven pulley is secured to the upper end of each spindle. The two driven pulleys are driven by a common drive belt. An idle pulley is movable either into tensioning or nontensioning relation to the drive belt to cause said belt to be in either driving or nondriving relation to the driven pulleys. To prevent coasting of the two mower blades and of the drive belt upon movement of the idler pulley to a nontensioning position, a rod-like pivoted brake member is provided which has a common braking cooperation with both driven pulleys. A biasing spring constantly urges the brake member toward braking position. A nonadjustable disabling link moves with movement of the idler pulley support arm so that when the idler pulley is moved to belt tensioning position the disabling link pivotally moves the brake member against the force of its biasing spring to a nonbraking position. When the idler pulley and the drive belt are moved to untensioned position, the disabling link is moved to a position in which the biasing spring is free to move the brake member into simultaneous braking engagement with both driven pulleys to prevent coasting of both mower blades, and also to bring the drive belt to a stop.
REFERENCES:
patent: 2718154 (1955-09-01), Mathson
patent: 2899793 (1959-08-01), Swisher
patent: 3229452 (1966-01-01), Hasenbank
patent: 3367459 (1968-02-01), Rubin
patent: 3460325 (1969-08-01), Musgrava
patent: 3543892 (1970-12-01), DeBaillie
patent: 3570637 (1971-03-01), Pitman et al.
patent: 3590564 (1971-07-01), Clifford
Klas Kenneth H.
Schaefer Daniel W.
Allis-Chalmers Corporation
Kinsey Russell R.
Sullivan Robert C.
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