Textiles: weaving – Warp manipulation – Shedding
Patent
1975-01-13
1976-03-30
Kee Chi, James
Textiles: weaving
Warp manipulation
Shedding
139 79, 74567, 74569, D03D 100
Patent
active
039467660
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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patent: 2986949 (1961-06-01), Lancaster et al.
patent: 3101745 (1963-08-01), Pfarrwaller
patent: 3349808 (1967-10-01), Gustafson et al.
patent: 3807460 (1974-04-01), Alexandr et al.
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