Plastic article or earthenware shaping or treating: apparatus – Sets of male-female press molds – Including positive means to eject product
Patent
1981-06-01
1983-09-27
Parrish, John A.
Plastic article or earthenware shaping or treating: apparatus
Sets of male-female press molds
Including positive means to eject product
425416, 425422, B30B 502
Patent
active
044066066
ABSTRACT:
The present invention is a device to produce manually compressed soil-cement blocks faster and more efficiently than previous devices of this type. The apparatus consists of a rectangular box connected to partially slotted supports, a cover to hold the mixture in the box during compression, a sliding plate to do the compression and a toggle linkage to create mechanical advantage necessary to convert human energy input into useful work. The toggle linkage is connected to toggle-connecting bars which are joined to wing pieces which connect to a lever actuated by a handle located on one side of the machine. Downward swinging of the handle causes the mechanism to move the sliding plate up and compress the soil between the fixed cover and advancing sliding plate.
REFERENCES:
patent: 761886 (1904-06-01), Helm
patent: 1310359 (1919-07-01), Mannell
patent: 1573336 (1926-02-01), Van Anden
patent: 2400851 (1946-05-01), Steinmueller
patent: 2962788 (1960-12-01), Romirez
patent: 4157887 (1979-06-01), Sothje
Parrish John A.
Stauss Mary O.
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