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US 4,208,045 AGranted
Pressure assemblies
AssigneeC.P.R. Engineering Developments Limited
InventorsHoward Rowe, Paul A. Rowe
Life of this patent
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AssigneeC.P.R. Engineering Developments Limited
InventorsHoward Rowe, Paul A. Rowe
Estimating the term…
A pressure assembly comprises a base plate, a ram and a wedge located between the base plate and the ram, the wedge having an inclined face facing the base plate or ram, the facing surface of the base plate or ram being inclined at the same angle and a screw adapted to move the wedge at right angles to the separation of the ram and base plate to alter the separation of the ram and base plate. Preferably a pair of wedges are provided, and preferably their inclined faces are oppositely-inclined. The pressure assembly may be used in conjunction with a support member adapted to be secured to a firm foundation, for example by bolts passing through bores. The assembly can be used to clamp a workpiece between the ram and a fixed member by engagement of the base plate with the fixed member and by increasing the separation of the ram from the base plate by rotating the screw.
A pressure assembly comprising a base plate, a ram, and a pair of wedges located between the base plate and the ram, the wedges having oppositely inclined faces facing the base plate or the ram, the facing surface of the base plate or ram being inclined at the same angle, a thrust bearing fixedly mounted relative to the base plate or the ram at one end thereof, and a screw supported in said thrust bearing for rotation and adapted to move the wedges symmetrically in opposite directions at right angles to the separation of the ram and base plate such that rotation of said screw alters the separation of the ram and base plate.
Dependencies are inferred from the claim text.