Carl F. Granzow - Royal Oak MI Edward G. Lash - Huntington Woods MI Everett Gleason - South Lyon MI Jerome Kubiak - Troy MI
Assignee:
Tishken Products, Inc. - Oak Park MI
International Classification:
B21D 708
US Classification:
72171
Abstract:
An apparatus and associated method is disclosed for introducing a curvature or sweep into a preferably previously-formed elongated article. The elongated article is substantially constrained, both laterally and transversely, as it moves longitudinally through the sweep-forming apparatus and is permanently deformed in a transverse direction in order to introduce the sweep or curvature therein.
Edward G. Lash - Huntington Woods MI Roger Levy - Oak Park MI Everett Gleason - South Lyon MI
Assignee:
Tishken Products Co. - Detroit MI
International Classification:
B26D 512 B26D 518
US Classification:
83626
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.
Edward G. Lash - Huntington Woods MI Roger Levy - Oak Park MI Everett Gleason - South Lyon MI
Assignee:
Tishken Products Co. - Detroit MI
International Classification:
B26D 512 B26D 518
US Classification:
83626
Abstract:
The present invention relates to a power assembly and fluid supply system for use in a two cycle air cut-off press. The power assembly includes a bell crank having first and second arms extending outwardly at an angle from a fulcrum with the bell crank being pivotally mounted opposite the fulcrum. The arms have rollers connected to them and are positioned beneath guide bars which are alternately reciprocated by power cylinders. Due to the rollers, there are no lateral forces, reducing wear. A link interconnects the bell crank with the ram plate of the press. As the bell crank oscillates about its pivotal mount, the link transfers the oscillatory movement to the ram plate as reciprocal movement. The fluid supply system of the present invention includes an adjustable three-way valve connected to a source of pressurized fluid. In a first position, the valve communicates pressurized fluid to one power cylinder while the other power cylinder is exhausted and in a second position communicates pressurized fluid to the other cylinder while the first cylinder is exhausted.
Multiple Tooling Roll Forming Machine With Turret Type Rotary Motion
Edward G. Lash - Huntington Woods MI Roger Levy - Oak Park MI Charles J. Nickels - Southgate MI
Assignee:
Tishken Products Co. - Detroit MI
International Classification:
B21D 508
US Classification:
72176
Abstract:
In a roll forming machine having a base, a motor drive, a gear drive transmission connected to the motor drive and a plurality of vertically aligned longitudinally spaced pairs of complimental pass forming rolls of progressive different shapes respectively arranged in a longitudinal set to successively receive, feed and form therebetween an elongated strip of stock in a continuous operation. Gear means interconnect the transmission and forming rolls for rotation thereof in unison. A rotatable turret mount assembly is provided to support a plurality of radially extending preset sets of form roll tooling, with each set being adapted for a different form of final product. The turret mount assembly is adapted for selected limited rotation upon a longitudinal axis to rapidly place any one of the plurality of preset sets of tooling in its operational position.