Stone working – Splitting – shearing – and punching
Patent
1988-02-04
1990-05-08
Watts, Douglas D.
Stone working
Splitting, shearing, and punching
125 2302, 225 965, B28D 132
Patent
active
049228862
ABSTRACT:
A tile 14 to be parted along a pre scored parting line is grasped between a pair of elements 36 which contact one surface of the tile on either side of the line, and a further element 30 which contacts the opposite surface of the tile on the line itself. Downward pressure on a handle member 26 then causes a jaw member 28 on which the element 30 is mounted to pivot about a fixed axis 18 to apply a parting pressure to the tile. In order to adjust the starting position of the element 30 to suit different thicknesses of tile, the member 28 is carried on a cam member 20 so that it can be rotated about a second axis which is eccentrically disposed relative to the axis 18.
REFERENCES:
patent: 1995741 (1935-03-01), Granite
patent: 2513876 (1950-07-01), Judd, Jr.
patent: 4026262 (1977-05-01), Yasuga
patent: 4378782 (1983-04-01), Richard et al.
patent: 4693232 (1987-09-01), Yasuga
patent: 4770156 (1988-09-01), Boada Sucarrats
Plas Plugs Limited
Rada Rinaldi
Watts Douglas D.
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