F - Mech Eng,Light,Heat,Weapons – 15 – B
Patent
F - Mech Eng,Light,Heat,Weapons
15
B
138/40
F15B 9/02 (2006.01) E04H 17/26 (2006.01)
Patent
CA 1221003
- 16 - "APPARATUS FOR DRIVING POSTS" ABSTRACT OF THE DISCLOSURE A post driving arrangement for mounting on the back of a tractor and driving by the tractor hydraulics comprises a hydraulic ram assembly carrying on the end of the piston rod a clamp assembly slidably guided on a vertical guide bar. The clamp assembly comprises two portions the first of which can slide on the guide bar but is braked relative thereto. The second portion is pivotally mounted on the first and is directly connected to the piston rod so that downward movement of the piston rod first tends to pivot the second portion into clamping engagement with the post received in a recess in the first portion. The pivotal clamping portion can include a bifurcated clamping edge which straddles the leg of a T-shaped post to engage the underside of the cross por- tion of the post.
471620
Ade & Company
Drysdale Douglas
LandOfFree
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