Cutting – Tool or tool with support – Cutting couple type
Patent
1989-06-20
1990-08-21
Combs, E. Michael
Cutting
Tool or tool with support
Cutting couple type
10 72R, B26D 100, B21D 5320
Patent
active
049496140
ABSTRACT:
A manually operated punch and die set for making washers accurately includes a die having a series of die openings graduated according to diameter, a series of punches having cutting faces complementary to and received in the die openings for manually severing discs from sheet material and leaving corresponding graduated openings therein, a plurality of the punches each having a shank-receiving bore in its cutting face, a series of pilots having heads graduated in diameter to correspond to the diameters of a like number of graduated sheet material openings, each of the pilots having a shank joined to its head and removably received in each bore, whereby a pilot may be mounted on a cutting face of greater diameter than the head of the pilot for manual insertion of the head into a sheet material opening of corresponding diameter to orient the opening with respect to the cutting face, for severing from the sheet material an annular washer encompassing the opening.
REFERENCES:
patent: 1659161 (1928-02-01), Richer
patent: 1752982 (1930-04-01), Herold
patent: 1785281 (1930-12-01), Olson
patent: 1915612 (1983-06-01), Olson
patent: 2086435 (1937-07-01), Rapp
patent: 2145725 (1939-01-01), Jamieson
patent: 2212886 (1940-08-01), Ruland
patent: 2266555 (1941-12-01), Jordan et al.
patent: 2295583 (1942-09-01), Jordan
patent: 2352118 (1944-06-01), Poupitch
patent: 2649125 (1953-08-01), Poupitch
patent: 2744268 (1956-05-01), Beart
"Precision Brand," Precision Brand Products, Inc. Catalog 87, Copyright 1987, 3 Cover Pages and Page 15.
Combs E. Michael
Precision Brand Products, Inc.
LandOfFree
Punch and die set does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Punch and die set, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Punch and die set will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1669079