Jack bar assemblies
AssigneeWilliam Cotton Limited
InventorsBarry C. Strong, Eric W. Marriott, William Clayton
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Abstract
In a jack bar assembly for a straight bar knitting machine, a pair of jacks is used for each jack-operated sinker. A first jack mounted on a first pivot has a rear edge engaged by the slurcock. A second jack mounted on a second pivot has a rear edge engaged by a nose of the first jack and a nose which engages and actuates the sinker. An increased mechanical leverage provided by the cooperating first and second jacks permits reduction in the advance provided by the slurcock and faster smoother operation.
Claims10
Jack bar assembly for transmitting motion from a slurcock to sinkers of a straight bar knitting machine, said assembly comprising for each of said sinkers, a primary jack movable about a pivot and actuated by engagement with said slurcock, and a secondary jack movable about a pivot and actuated by said primary jack, said secondary jack transmitting movement from said primary jack to said sinker.
Knitting head assembly of a straight bar knitting machine comprising a sinker bar assembly, a jack bar assembly, and a draw assembly including a slurcock, said sinker bar assembly comprising a sinker bar and sinkers slidable in said sinker bar, and said jack bar assembly comprising for each sinker, a pair of jacks comprising a primary jack mounted on a first pivot and having a nose portion and a rear edge portion engageable by said slurcock to move said primary jack about said pivot, and a secondary jack mounted on a second pivot and having a nose portion engaging the respective sinker and a rear edge portion engaged by the nose of said primary jack to move said secondary jack about its pivot and thereby transmit movement from said primary jack to said sinker.
Dependencies are inferred from the claim text.