Title: Power loom dobby shedding motion

Abstract: This dobby shedding motion for power looms comprises essentially a series of twin cams mounted on a common drive shaft and oscillating arms each provided with a pair of roller followers adapted to co-operate with said cams. Each cam assembly comprises a pair of parallel discs slightly spaced in the axial direction and off-set angularly to each other, and each oscillating arm carries two pairs of strap-forming strips rotatably supporting a roller follower, each roller follower being adapted to engage one of the discs of the registering cam assembly. Said strips have extensions bent to provide inner surfaces adapted to engage the side surfaces of said discs to assist in centering the roller followers in relation to said discs. The cam assemblies and roller followers are mounted and assembled by means of bolts comprising each a frustoconical headed screw and a nut also formed with a frustoconical portion whereby tightening said bolts in properly countersunk holes will provide a reliable vibration proof assembly.

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Inventors: Amigues, Luc (AVEN, UE)

Application Number: 540466
Filing Date: 1975-01-13
Publication_date: 1976-03-30
Assignee:
Primary Class(es): 139/66R 74/567, 74/569, 139/79
Other Classes:
US Patent Ref:

732606	Jun, 1903	Topliff	74/569.
1580178	Apr, 1926	Talbot	139/79.
2379771	Jul, 1945	Weidauer et al.	74/567.
2567735	Sep, 1951	Scott	74/569.
2687148	Aug, 1954	Pfarrwaller	139/79.
2986949	Jun, 1961	Lancaster et al.	74/567.
3101745	Aug, 1963	Pfarrwaller	139/66.
3349808	Oct, 1967	Gustafson et al.	139/66.
3807460	Apr, 1974	Alexandr et al.	139/76.

Other Refs: 895,862734,544

Apr, 1944	FR
Apr, 1943	DD

Primary Examiner: Kee Chi, James
Assistant Examiner:
Attorney: Dowell & Dowell