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US 3,986,529 AGranted
Eccentric drive for driving the shafts of a weaving machine
AssigneeSulzer Brothers Limited
InventorErwin Pfarrwaller
Life of this patent
Estimating the term…
Abstract
The eccentric drive for lifting the heddle frame uses a mounting arrangement by which cam rollers can be detachably mounted on a cam-follower lever. The mounting arrangement uses a roller journal which is secured by bolts to the lever and which serves as a mount for a roller. The diameter of the journal surface on which the roller rotates is relatively large to provide a low surface pressure of the roller on the journal.
Claims6
An eccentric drive for a reciprocal drive lifter of a heddle frame comprising
- a pivotally mounted lever having at least one aperture therein,
- at least one journal removably mounted on said lever, said journal including a centering pin projecting into said aperture of said lever,
- a plurality of bolts removably securing said journal to said lever, said bolts being disposed about said centering pin,
- a cam roller rotatably mounted on said journal, and
- a rotatable eccentric bearing against said cam roller to pivot said lever.
2 more elements
In combination
- a heddle frame;
- at least one lifter for lifting and lowering said frame;
- means including a reciprocating guide rod for lifting and lowering said lifter;
- and
- an eccentric drive for reciprocating said guide rod, said drive including a pivotally mounted lever connected to said guide bar and having an aperture therein, at least one journal removably mounted on said lever and including a centering pin projecting into said aperture of said lever, bolts about said centering pin threadably securing said journal to said drive, a cam roller rotatably mounted on said journal and a rotatable eccentric bearing against said cam roller to pivot said lever.
2 more elements
Dependencies are inferred from the claim text.