Projectile accelerator for a loom
AssigneeSulzer Brothers Limited
InventorErwin Pfarrwaller
Life of this patent
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Abstract
A projectile accelerator has a coupling transmission articulated between a cam follower lever and a picking lever which has two end positions. The projectile accelerator also has an eccentric rocker on the drive shaft which cooperates with a tensioning lug on the accelerating shaft in order to carry out a return motion of the picking lever without need for a large angular movement of the cam follower lever. The picking lever is able to traverse large angles of movement while the cam following lever traverses reduced angles of movement.
Claims18
A projectile accelerator for a loom comprising
- a drive shaft;
- a cam mounted on said drive shaft for rotation therewith;
- an accelerating shaft;
- a picking lever mounted on said accelerating shaft for movement therewith from a picking position to an end position to pick a projectile;
- a pivotally mounted cam follower lever for following said cam during rotation of said drive shaft;
- a coupling transmission connected to and betweenone end of said cam follower lever and one end of said picking lever, said transmission including a link movable from a first end position corresponding to said picking position to a second end position corresponding to said end position to said picking lever;
- and
- tensioning means connected to said drive shaft for rotating said accelerating shaft in a direction to move said picking lever from said end position thereof into an intermediate position toward said picking position and said link from said second end position toward said first end position thereof.
A projectile accelerator for a loom comprising
- a drive shaft;
- a cam mounted on said drive shaft for rotation therewith;
- an accelerating shaft parallel to said drive shaft;
- a picking lever secured to and extending from said accelerating shaft for movement therewith from a picking position to an end position;
- a pivotally mounted cam follower lever for following a first surface of said cam during rotation of said drive shaft;
- a link connected to and between said cam follower lever and said picking lever, said link being movable from a first end position corresponding to said picking position to a second end position corresponding to said end position of said picking lever during movement of said cam follower lever with said first surface;
- and
- tensioning means connected to said drive shaft for rotating said accelerating shaft in a direction to move said picking lever from said end position thereof into a intermediate position toward said picking position and said link from said second end position toward said first end position thereof.
Dependencies are inferred from the claim text.