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US 4,165,869 AGranted
T clamp
OwnerCurtis Williamsinventor
Life of this patent
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OwnerCurtis Williamsinventor
Estimating the term…
A clamp comprising a jaw assembly of three coacting work grippers connected to a plate provided with slots which guide the jaws so that they may be relatively arrayed and adjusted for various sizes of work pieces to be held at right angles for gluing or fastening; a left and right threaded actuating and locking screw for the two L-shaped jaws, and a separate identical screw for the third common jaw which they oppose; each jaw separately positionable manually; the two L-shaped jaws laterally in one slot set, the common rear jaw transversely in the same plane, back and forth, in three transverse slots in the plate; with shoulders to stabilize the lateral movement of the L-shaped jaws, and with a pilot mounted on rollers in the transverse slot to stabilize positioning of the rear jaw; provided with a pivoted eccentric cam in one model for the actuating and locking; and in another model a cam on end, pivoted with a hand lever with cam acting in a slot.
A clamp assembly comprising first clamp means removably receiving a first work piece therein, second clamp means movable in directions toward and away from said first clamp means and cooperating therewith for receiving a second work piece therein and securely retaining the second work piece in engagement with said first work piece, a single uninterrupted workpiece engaging flange member provided on said first clamp means for receiving one side of said first work piece thereagainst, a pair of oppositely disposed spaced substantially L-shaped flange members provided on said second clamp means and movable in directions toward and away from each other for securely clamping said second work piece therebetween and in said second clamp means, first adjustment means operably connected between said first and second clamp means for controlling the pressure engagement of both clamp means against the opposite sides of the first work piece, and second adjustment means operably connected between the spaced L-shaped flange members for controlling the clamping pressure against the opposite sides of the second work piece for securely retaining one end of the second work piece in engagement with one side of the first work piece during a clamping operation.
A T-clamp for simultaneously clamping first and second workpieces in an engaging relationship and which comprises a substantially flat support plate, an angle bracket slidably mounted on said support plate for reciprocal movement along one axis thereof for providing a surface perpendicular to the plane of said support plate, a first L-shaped angle bracket fixed to said support plate providing a pair of surfaces perpendicular to the plane of a support plate and perpendicular to each other, one of said surfaces being oriented parallel to the surface of the slidable angle bracket, a second L-shaped angle bracket slidably mounted on said support plate for reciprocal movement along an axis perpendicular to the axis of travel for the slidable angle bracket for providing a pair of surfaces perpendicular to the plane of the support plate and perpendicular to each other, one of said surfaces oriented in a coplanar relationship with the surface of the first L-shaped angle bracket which is oriented parallel to the surface of the slidable angle bracket, means for urging the second L-shaped angle bracket against the first work piece between the first and second L-shaped angle brackets, and means for urging the slidable angle bracket against the second work piece between the slidable angle bracket and the first and second L-shaped members.
Dependencies are inferred from the claim text.