Elastically yieldable device for fixing a rail on a support
OwnerRoger P. Sonnevilleinventor
Life of this patent
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Abstract
The device comprises a spring fixed to a support at a point remote from the rail and curved in the direction of the rail, and a swing block interposed between the spring and the flange of the rail. The swing block bears against the flange of the rail at one end and against the support at its opposite end. The swing block is clamped by the end of the spring which applies a clamping force at point located at a distance from the flange of the rail but in the vicinity of the flange so that the two lever arms of the swing block have very different lengths. Further, the spring has a thickness which decreases in the direction of the rail and bears against the swing block by its end which is curved, the swing block having a corresponding shape under said end.
Claims14
An elastically yieldable device in combination with a rail and a support for fixing the rail on the support, said device comprising a spring which has a first branch rigid with the support at a first end of the spring, a bent portion and a second branch which is connected to the first branch by the bent portion and extends from the bent portion towards the rail, the second branch having a thickness which progressively decreases in the direction of the rail to a thin end portion of the spring adjacent a second end of the spring opposed to said first end thereof and a length less than a distance between the curved portion of the spring and the flange of the rail, and a compensating block which bears at one end of the block on the flange of the rail and at an opposite end of the block on the support and is clamped by the thin end portion of the spring at an intermediate point of the block in the vicinity of the edge of the flange of the rail but outside the rail.
Dependencies are inferred from the claim text.