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US 4,257,321 AGranted
Presses
OwnerRowland G. Wheeler, Rodney Wheelerinventors
Life of this patent
Estimating the term…
Abstract
A press suitable for making cheese comprises a pressure assembly which is displaceable along guides projecting from the base of the press towards or away from a reaction yoke member formed by the base, the pressure assembly being constituted by first and second members which are resiliently biassed away from each other. Friction catches are provided which, in an operative position, frictionally engage the guides to resist displacement of the pressure assembly away from the reaction member.
Claims9
A press comprising:
- a pressure assembly including at least one yoke, a base forming a reaction member, and guides projecting from said base along which said yoke is displaceable, the improvement comprising, at least one catch element slidable on and rockable relative to a respective said guide when assuming a first position in which said catch element jams against said guide and is held by friction against said guide, when a force is applied to said catch element by said yoke upon displacement of the yoke away from said base, said catch element thereby resisting said displacement of said yoke away from said base, while permitting displacement of said yoke towards said base when assuming a second position, the said catch element contacting and bearing against a part of said yoke in at least the first said catch position.
A press comprising:
- a pressure assembly constituted by first and second yoke members resiliently biased away from one another;
- a base forming a reaction member, and guides projecting from said base along which said pressure assembly is displaceable towards or away from said reaction member, said first yoke lying between said second yoke and said reaction member along said guides, the improvement comprising, said second yoke being provided with a respective catch element for each said guide, each said catch element being slidable on and rockable relative to the respective said guide into a first position in which said catch element frictionally engages the guide to prevent relative movement between said catch element and said guide in one direction, thereby resisting displacement of said pressure assembly away from said reaction member, while relative movement in the opposite direction rocks said catch element and causes it to assume a second position to permit sliding thereof relative to said guide.
Dependencies are inferred from the claim text.