Drive connection for a reciprocating a connecting rod from a dri

Details Drive connection for a reciprocating a connecting rod from a dri Drive connection for a reciprocating a connecting rod from a dri

1987-03-23

1988-03-01

Jaudon, Henry S.

Textiles: weaving

Warp manipulation

Shedding

D03C 100

Patent

active

047279109

ABSTRACT:
A drive connection for reciprocating a connecting rod from a drive shaft through an eccentric cam to manipulate a harness frame of a textile loom from one shedding position to another. The drive connection includes a pawl mounted on an eccentric cam and movable into and out of engagement in recesses in an annular drive ring only when the eccentric cam is in predetermined dwell positions. The pawl is controlled by a locking element against any change of position after it is engaged and it is continually biased in the direction of engagement. An actuating lever mounted on the connecting rod actuates the locking element to cause disengagement of the pawl from the drive ring recess. The actuating lever is controlled by an operating member that operates according to a predetermined program, and the actuating lever is prevented from actuation by blocking members that are spaced to allow actuation only at a dwell position.

REFERENCES:
patent: 4367770 (1983-01-01), Schwarz
patent: 4542769 (1985-09-01), Julich
patent: 4597417 (1986-07-01), Schwarz

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