Cutting – Means to drive or to guide tool – With simple rectilinear reciprocating motion only
Patent
1975-03-27
1976-01-20
Meister, J. M.
Cutting
Means to drive or to guide tool
With simple rectilinear reciprocating motion only
83635, 83693, B26F 112
Patent
active
039330710
ABSTRACT:
A shearproof or notching or nibbling punch has an upper retainer member adapted to be secured to a press and a punch body. The upper body portion is adapted to be secured to the retainer member by bolt means and the lower body portion is square in cross section and has a substantially semi-cylindrical groove extending vertically along the center of each vertical face of the lower body portion. A heel for each groove has its lower portion flatted along its outer side to conform to the lower body configuration, and each heel has a cylindrical portion extending through a conforming aperture in the upper body portion and terminating in a head. Each head lies in an elongated slot in the upper body top surface, the slot being deeper than the height of the head. Springs lying in holes in the retainer member and extending into each slot bias the heels downward to project beyond the flat bottom surface of the lower body. Each heel head is flatted on diametrically opposite sides to conform its width to that of the slots to keep the heel from turning in its groove.
REFERENCES:
patent: 2997907 (1961-08-01), Constantino
patent: 3269240 (1966-08-01), Killaly et al.
patent: 3348443 (1967-10-01), Smith et al.
patent: 3759130 (1973-09-01), Patterson
Meister J. M.
Onondaga Tool Corporation
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