Cutlery – Perforating or indenting implements – With portion positioned in work aperture
Patent
1986-01-22
1987-06-23
Meister, James M.
Cutlery
Perforating or indenting implements
With portion positioned in work aperture
83631, B26F 114
Patent
active
046741879
ABSTRACT:
A pool light installation device is provided which quickly and easily cuts holes in the walls of above-ground pools. A cutting plate and a cutting base member are placed one on either side of the pool wall at the chosen location, joined together by a threaded bolt which passes through a small hole made previously in the pool wall. The threaded bolt is rotated by the use of a wrench or other tool causing the cutting plate to be drawn towards and into the cutting base member. The cutting plate has teeth formed therein which penetrate the pool wall and commence a shearing action between the cutting plate edge and the opening in the cutting base member, which then cuts a hole in the pool wall in the exact shape of the cutting plate.
REFERENCES:
patent: 1754568 (1930-04-01), Nischan
patent: 1817223 (1931-08-01), Abramson et al.
patent: 2221904 (1940-11-01), Abramson et al.
patent: 2735489 (1956-02-01), Fowler
patent: 3056203 (1962-10-01), Calkins
patent: 3670610 (1972-06-01), Cady, Jr.
patent: 4495699 (1985-01-01), Oakes
patent: 4594779 (1986-06-01), Hagemeyer
GTY Industries
Meister James M.
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