Rotating driving mechanism for imparting reciprocatory motion to

Details Rotating driving mechanism for imparting reciprocatory motion to Rotating driving mechanism for imparting reciprocatory motion to

1978-08-21

1979-12-04

Jaudon, Henry

Textiles: weaving

Special-type looms

Multiple-shed

139449, D03D 3918

Patent

active

041766920

ABSTRACT:
A driving mechanism comprises a rotatable shaft (34), a drive arm (56) mounted on and rotatable with said drive shaft and having a swing end projecting radially therefrom on which a counterbalanced drive link (63) is rotatably mounted and arranged to rotate in a plane parallel to the plane of rotation of the drive arm, means (65,66,67,68,69) for rotating said drive link in a direction which is opposite to that of said drive arm, balance means (71) forming a part of said drive arm and rotatable therewith about said drive shaft so as to counterbalance the weight of said drive arm (56) and drive link (63) irrespective of the angular position of said drive link (63) relative to said drive arm (56) and a pair of flexible cables (W1,W2), each interconnected at one end with a driven element (C) to be reciprocated and each being secured at its other end with a fixed element (51,54) and the intermediate portions of said links being looped about pulley means (50) mounted on the swing end of said drive link (63) in such manner as to define a plurality of courses (a1,a2,b1,b2) whereby the travel of the driven element (C) is amplified relative to the straight line reciprocation of the pulley means (50).

REFERENCES:
patent: 1261053 (1918-04-01), O'Brien
patent: 1261527 (1918-04-01), Herthel
patent: 2258193 (1941-10-01), Payne
patent: 2890725 (1959-06-01), Brannock
patent: 3335760 (1967-08-01), Scheffel
patent: 3394739 (1968-07-01), Crenshaw et al.
patent: 3955603 (1976-05-01), Martelli

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