Back rest arrangement on a weaving machine

Details Back rest arrangement on a weaving machine Back rest arrangement on a weaving machine

1986-02-10

1987-09-01

Jaudon, Henry S.

Textiles: weaving

Warp manipulation

Feeding

139114, D03C 4906

Patent

active

046901760

ABSTRACT:
In a back rest arrangement on a weaving machine the back rest is preferably carried at each of its ends by one arm of a two-armed support frame or yoke which is pivotable about a stationary pivot axis on a machine frame. At least one of the arms of the support frame or yoke possesses a resilient portion or shank. A free end of the resilient shank is supported in a manner which is relatively rigid in relation to a pivoting motion of the support frame or yoke caused by the varying warp force acting on the back rest. The resilient shank is in operative association with a sensing probe for generating an electrical signal which is proportional to the deflection of the resilient shank. These measures render the arrangement suitable both for a so-called rigid or fixed back rest support as well as for a back rest support utilizing a rocking lever or rocker beam. Consequently a simple, functionally reliable and accurate conception of a back rest arrangement can be achieved while still avoiding complex lever constructions and compensating rollers.

REFERENCES:
patent: 3526252 (1970-09-01), Hindle
patent: 4529012 (1985-07-01), Sainen et al.
patent: 4554951 (1985-11-01), Hirano et al.

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