Presses – Portable receptacle lid applying – With gathering of contents
Patent
1976-07-29
1978-01-03
Wilhite, Billy J.
Presses
Portable receptacle lid applying
With gathering of contents
83DIG1, 192129R, B30B 1500
Patent
active
040660133
ABSTRACT:
A mechanical safety device for the reciprocating plunger in downwardly acting presses such as a downstroke or eccentric type, in which the plunger is connected to the piston rod of the press cylinder or to the eccentric. A stopping rod is immovably fixed on the plunger and extends vertically upwardly from the plunger and through a stopping sleeve rotatably mounted on a housing fixedly retained on the press. The rod and the sleeve have cooperating threads, the threads on the rod being divided into at least two sections and the threads on the sleeve being divided into as many sections as the threads on the rod and being spaced by arcuate surfaces. In a first rotary position of the sleeve, the threads engage with each other for stopping the plunger, and in a second rotary position of the sleeve, the threads are moved out of engagement with each other for permitting movement of the rod through the sleeve and thereby movement of the plunger.
REFERENCES:
patent: 2240630 (1941-05-01), Stacy
patent: 2653560 (1953-09-01), Bradhering
patent: 2946277 (1960-07-01), Archer
patent: 3095804 (1963-07-01), Linder
Backgard Stig Gunnar Bengt
Skoglund Klas Axel Lennart
Lagan Press AB
Wilhite Billy J.
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