Portable powered stake puller

Details Portable powered stake puller Portable powered stake puller

1996-02-26

1996-10-22

Watson, Robert C.

Implements or apparatus for applying pushing or pulling force

Nail extractor type

B25C 1100

Patent

active

055669247

ABSTRACT:
The apparatus is a portable stake puller powered by a gasoline engine. The lifting action is produced by an endless chain conveyor that raises a jaw assembly which is pivoted to grip the spike. The jaw assembly is released from the chain by a mechanical unlatching action when it hits a stop near the top of a guiding channel, and, once released, the jaw assembly drops down to the bottom of the channel from its own weight, reconnects to the chain, and is ready to engage another spike.

REFERENCES:
patent: 222112 (1879-11-01), Wilson
patent: 871083 (1907-11-01), Brown
patent: 1771712 (1930-07-01), Jimerson
patent: 2570914 (1951-10-01), Buck
patent: 2570915 (1951-10-01), Buck
patent: 2709570 (1955-05-01), Henry
patent: 2797889 (1957-07-01), Talboys
patent: 2874933 (1959-02-01), Feucht
patent: 5253844 (1993-10-01), Cotic et al.

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