Cutting – Means to drive or to guide tool – With simple rectilinear reciprocating motion only
Patent
1984-09-04
1986-04-01
Meister, James M.
Cutting
Means to drive or to guide tool
With simple rectilinear reciprocating motion only
83630, 83639, B26D 512, B26D 518
Patent
active
045790310
ABSTRACT:
In a two cycle air cut-off press having a bed plate, guide posts, a top plate upon the posts and a ram plate guidably mounted upon the post defining with the bed plate a die set area an improved power mechanism for the ram plate including first and second cylinder assemblies mounted upon the top plate including piston rods. A bell-crank is pivotally mounted upon the top plate and pivotally connected to the piston rods. A toggle linkage including a plurality of pairs of pivotally interconnected upper and lower links at their outer ends are connected respectively to the top plate and to the ram plate. A horizontally reciprocal control arm is connected to the toggle linkage and to the bell-crank whereby on alternate reciprocal movements of the piston rods and reciprocal pivotal movements of the bell-crank, the control arm is reciprocated and through the linkage effects reciprocal vertical movements of the ram plate. In the modified cut-off press the bell-crank is omitted and the cylinder assemblies and piston rods are mounted upon side plates, with the piston rods connected to opposite ends of the control arm, for reciprocating the control arm and the toggle linkage vertically reciprocating draw rods connected to the arm plate.
REFERENCES:
patent: 2156323 (1939-05-01), Tishken
patent: 3183743 (1965-05-01), O'Donnell
patent: 3545368 (1970-12-01), Lickliter et al.
patent: 4172401 (1979-10-01), Albareda
Gleason Everett
Lash Edward G.
Levy Roger
Knoble John L.
Meister James M.
Tishken Products Co.
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