A - Human Necessities – 01 – B
Patent
A - Human Necessities
01
B
97/120
A01B 59/00 (2006.01) B60D 1/155 (2006.01) B62D 49/06 (2006.01) F15B 15/28 (2006.01) F16C 7/06 (2006.01)
Patent
CA 1178104
THREE-POINT SUSPENSION DEVICE FOR TRACTORS ABSTRACT OF THE DISCLOSURE In the case of the adjustable upper link in a three-point suspension device for a tractor, comprising a locking device in the form of a line fitted with a shut-off device and connecting together the two end-faces of the hydraulic cylinder, the invention simplifies the operation of the device in that it may be adjusted effortlessly from the tractor-seat. This is achieved in that the shut-off device is in the form of a ball-valve having an axis secured to a forked actuating lever, and in that springs are provided to urge the said actuating lever towards the shut-off position. A scale provides the tractor-driver with an accurate indication of the setting of the link. The design of a tube accommodating one end of the piston-rod as a compressed-air chamber ensures automatic displacement of the piston in the hydraulic cylinder.
378432
Conrad Ernst
Hewson Donald E.
LandOfFree
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