Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
237 words
In a flat weaving machine which is operable to form a shed terminating at a fell of a cloth, to enter a filling thread into said shed along a predetermined line, to cut off said filling thread, and to beat up said filling thread against said fell, said machine comprising an intermittently rotatable reed roller consisting of a reed shaft and a multiplicity of discs corotationally mounted on said reed shaft and formed with threadengaging edge portions which are adpated thus to beat up successive filling threads against said fell as said reed roller is intermittently rotated in a predetermined direction, the provision of tensioning means for maintaining the tension of said filling thread as it is beaten up, said tensioning means comprising two stationary spring tongues, which are disposed at opposite ends of said reed roller and bear on the outer end faces of those of said discs which are disposed at said opposite ends of said reed roller, said tongues being adapted to clamp opposite end portions of said filling thread against said outer end faces when said filling thread has been cut off, and two thread tensioners disposed adjacent to opposite ends of said reed roller and comprising backing means disposed adjacent to said predetermined line, said tensioners being pneumatically operable to force said filling thread against said backing means when, and only when, said filling thread has thus been entered into said shed.
Claim 2
Dependent Claim
237 words
In a flat weaving machine which is operable to form a shed terminating at a fell of a cloth, to enter a filling thread into said shed along a predetermined line, to cut off said filling thread, and to beat up said filling thread against said fell, said machine comprising an intermittently rotatable reed roller consisting of a reed shaft and a multiplicity of discs corotationally mounted on said reed shaft and formed with threadengaging edge portions which are adpated thus to beat up successive filling threads against said fell as said reed roller is intermittently rotated in a predetermined direction, the provision of tensioning means for maintaining the tension of said filling thread as it is beaten up, said tensioning means comprising two stationary spring tongues, which are disposed at opposite ends of said reed roller and bear on the outer end faces of those of said discs which are disposed at said opposite ends of said reed roller, said tongues being adapted to clamp opposite end portions of said filling thread against said outer end faces when said filling thread has been cut off, and two thread tensioners disposed adjacent to opposite ends of said reed roller and comprising backing means disposed adjacent to said predetermined line, said tensioners being pneumatically operable to force said filling thread against said backing means when, and only when, said filling thread has thus been entered into said shed.
Claim 3
Dependent Claim
27 words
Tensioning means as set forth in claim 1, in which said discs at said opposite ends of said reed roller are thicker than others of said discs.
Claim 4
Dependent Claim
44 words
Tensioning means as set forth in claim 1, in which said backing means of Each of said tensioners comprise two beads extending transversely to said predetermined line and each of said tensioners comprises a vacuum conduit having an inlet opening disposed between said beads.
Claim 5
Dependent Claim
18 words
Tensioning means as set forth in claim 3, in which said beads are provided with a friction facing.
Claim 6
Dependent Claim
33 words
Tensioning means as set forth in claim 3, in which each of said tensioners comprises a pressure conduit having an outlet opening which is in register with and spaced from said inlet opening.
Claim 7
Dependent Claim
85 words
Tensioning means as set forth in claim 1, in a weaving machine in which the thread-engaging edge portions of each of said discs at said opposite ends of said roller are adapted to revolve so as to describe an orbital path, in which tensioning means each of said spring tongues is provided with an edge portion which extends approximately radially to said reed shaft and adjacent to said orbital path and is engageable by and adapted to deflect one end portion of said filling thread.
Claim 8
Dependent Claim
39 words
Tensioning means as set forth in claim 1, which comprise projections formed on the outer ends of said thread-engaging edge portions of said discs at the opposite ends of said reed roller, said projections extending in said predetermined direction.
Claim 9
Dependent Claim
29 words
Tensioning means as set forth in claim 1, which comprise friction facings provided on said outer end face of said discs at the opposite ends of said reed roller.
Claim 10
Dependent Claim
19 words
Tensioning means as set forth in claim 1, in which said spring tongues are under a variable initial stress.