Cutting – Means to drive or to guide tool – With simple rectilinear reciprocating motion only
Patent
1986-02-05
1987-08-11
Kazenske, E. R.
Cutting
Means to drive or to guide tool
With simple rectilinear reciprocating motion only
83630, 83639, 100272, B26D 512, B26D 518
Patent
active
046853677
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.
REFERENCES:
patent: 1007792 (1910-10-01), Orton
patent: 1749545 (1928-01-01), Pierce
patent: 1918059 (1929-06-01), Sherman
patent: 2087811 (1934-06-01), Patrick
patent: 2441275 (1944-10-01), Keagle
patent: 3183743 (1965-05-01), O'Donnell
patent: 3691890 (1972-09-01), Kuchyt
patent: 4172401 (1979-10-01), Albareda
Gleason Everett
Lash Edward G.
Levy Roger
Kazenske E. R.
Smith Scott A.
Tishken Products Co.
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