Rock breaking device

Details Rock breaking device Rock breaking device

1986-10-20

1988-07-26

Eley, Timothy V.

Tool driving or impacting

With indicating or signaling means

173 55, 173 92, 173114, 173128, E21B 702

Patent

active

047594128

ABSTRACT:
A rock breaking device adapted to be coupled to the lifting arms of a tractor or similar vehicle is disclosed, the device having an upstanding guide tube with a hammer, chisel, and anvil disposed therein. The hammer can be raised within the guide tube by frictional engagement with a drive member and is then allowed to fall by gravitational force to impact the chisel and/or the chisel and anvil, thereby driving the chisel into the surface to be broken. The device has a shock absorber to minimize the force of impact and as a safety feature, cannot be made operational until actually positioned on the surface to be broken.

REFERENCES:
patent: 3713498 (1973-01-01), Watanabe et al.

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