Cutlery – Perforating or indenting implements
Patent
1975-12-22
1977-09-13
Whitby, Edward G.
Cutlery
Perforating or indenting implements
83586, 156 98, 156258, B32F 132
Patent
active
040473007
ABSTRACT:
Apparatus for repairing portions of damaged material such as clothing fabric is described. A piece of mending cloth identical to the damaged material is placed over the damaged area of a fabric to be repaired, aligned and further placed upon a flat cutting die of metal having several different sized round holes therein. The proper hole is selected, the top edge about the parimeter acting as the cutting die. A cooperating punch assembly containing a cylindrical holder which can contain one metal sphere or two such spheres. If the punch assembly contains two such spheres, one may be swiveled or turned end for end so as to cut with the desired sphere. The spherical ball partically protrudes from the one end of a holder through a hole about which surrounds a shoulder area for cooperating with the die plate. The spherical ball is held loosely within the holder by retaining means opposite to the shoulder region. A rigid shaft, spring loaded extends from that part of the sphere remote from the fabric striking end of the sphere to the outer end of the cylindrical holder. To perform the desired cutting operation, the cutting tool is placed over the desired material to be cut in further cooperation with the cutting anvil. The rigid shaft is withdrawn against the spring biased means. The rigid shaft is then released with the force thereof impacting against the spherical cutting tool thereby forcing the ball into contact with the cutting edge of the metal die or anvil.
REFERENCES:
patent: 3096015 (1963-07-01), Bradbury
patent: 3271217 (1966-09-01), Mapson
patent: 3288665 (1966-11-01), Conti
patent: 3299761 (1967-01-01), Goldman
patent: 3463042 (1969-08-01), Goldman
patent: 3513048 (1970-05-01), Snyder
patent: 3772114 (1973-11-01), Kowalchuk
Deits David H.
Kessler Kenneth S.
Mattern Jr. Roy E.
Whitby Edward G.
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