Jack post

Details Jack post Jack post

1978-09-05

1980-09-09

Watson, Robert C.

Implements or apparatus for applying pushing or pulling force

Screw

248354P, 254133A, B66F 310

Patent

active

042213622

ABSTRACT:
A jack post includes two telescopic square section tubes. Narrow top and bottom plates are provided for the post, the plates being of a size for insertion within one of the tubes, and a cross pin is provided for insertion transversely through selected bores in the telescoped tubes.

REFERENCES:
patent: 1796173 (1931-03-01), Warren
patent: 2504291 (1950-04-01), Alderfer
patent: 3942904 (1976-03-01), Morris
patent: 4083530 (1978-04-01), Linnepe

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