Cutting – Other than completely through work thickness or through work... – Combined types of cutting
Patent
1980-03-24
1982-10-19
Meister, James M.
Cutting
Other than completely through work thickness or through work...
Combined types of cutting
83 49, 83530, 225103, B23D 1502
Patent
active
043544118
ABSTRACT:
The shears have a lower blade and an upper blade. The upper blade is reciprocated with respect to the lower blade through a transmission. The transmission includes a first eccentric which is continuously rotated to continuously reciprocate the upper blade over a vertical stroke equal to the throw of the first eccentric. This throw is transmitted to the upper blade through a second eccentric surrounding the first. The second eccentric is quickly rotatable, between two positions. In the first position, the upper blade is always clear of a billet on the lower blade. In the second position, the upper blade cuts the billet during the reciprocation. To ensure that the upper blade only penetrates approximately half the thickness of the billet, the position of the lower blade is vertically adjustable.
REFERENCES:
patent: 2182162 (1939-12-01), Ostberg
patent: 2443685 (1948-06-01), Lyche
patent: 2632509 (1953-03-01), Skillman
patent: 3152499 (1964-10-01), Moelbert
patent: 3202029 (1965-08-01), Morath
patent: 3237829 (1966-03-01), Muntwyler
patent: 3453914 (1969-07-01), Lemper
patent: 4160409 (1979-07-01), Portmann
Griese Karl
Kersting Emil F.
Schulte Rolf
Dennemeyer John J.
Meister James M.
Sack GmbH
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