Cutting – Means to drive or to guide tool – Cutting tool operative in opposite directions of travel
Patent
1983-06-29
1985-05-14
Meister, James M.
Cutting
Means to drive or to guide tool
Cutting tool operative in opposite directions of travel
83565, 83622, 83682, 83916, B26D 508
Patent
active
045164568
ABSTRACT:
A machine for punching and nibbling a piece of sheet material, preferably metal, for subsequent manufacture into a pallet, said machine comprising a pair of dies disposable on each side of the sheet material, a punch shaft being pushable through one die, then through the sheet material, then through the other die, which punch shaft also begins a nibbling operation on the return stroke, because of a shoulder cut into the shaft itself. The punch shaft is empowered by a pressurizable cylinder and an electric motor on the initial punch stroke, and just the electric motor during the reciprocable nibbling function.
REFERENCES:
patent: 2343073 (1944-02-01), Morin
patent: 3144798 (1964-08-01), Leibinger
patent: 3481236 (1969-12-01), Nicklasson
patent: 3988829 (1976-11-01), Sumida
patent: 4312256 (1982-01-01), Herzog et al.
Halgren Donald N.
Knoble John L.
Meister James M.
USM Corporation
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