Sheet metal cutting

Details Sheet metal cutting Sheet metal cutting

1976-09-08

1978-01-24

Abercrombie, Willie G.

Cutlery

Cutting tools

Plural cooperating blades

30241, 83559, 83694, 83825, B26B 1500

Patent

active

040695832

ABSTRACT:
A shearing cutting tool that may be either hand or machine operated. The tool includes an upper blade, a lower blade, a device for moving at least one of the blades with respect to the other blade, an arm mounting the lower blade below a sheet of material to be cut, and a ball bearing mounted on the arm. The ball bearing has a portion thereof extending upwardly from the arm, and is mounted adjacent the trailing edge of the lower blade for engaging the bottom surface of a sheet to be cut. The ball bearing allows easier pivoting of the cutting tool during cutting to change the direction of cutting.

REFERENCES:
patent: 879900 (1908-02-01), Potstada
patent: 2318982 (1943-05-01), Wilhide
patent: 2750667 (1956-06-01), Johnson
patent: 2822871 (1958-02-01), Malek
patent: 2888744 (1959-06-01), Yermish
patent: 3710445 (1973-01-01), Roth

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