Abstract: A method and apparatus for flipping and folding a pliable workpiece, such as a pre-hemmed sleeve blank, along a desired fold axis. A workpiece is conveyed past a flipping roller and down against a clamp bar wherein it is clamped at a predetermined time by a lower hem guide. The flipping roller is sped to impart linear momentum to the unclamped, trailing portion of the workpiece. The flipping action serves to re-orient the workpiece from a right side-up orientation to an inside-out orientation so as to properly present the workpiece for subsequent seaming or stitching operations. A sensor is provided to determine the length of the workpiece so as to enable the device to clamp the workpiece about any desired fold axis.

Abstract: An oil pump assembly having an adjustable gear hub assembly enclosed within a housing, which assembly includes a spur gear for driving two independent gear pumps, a gear hub and an adjusting sleeve for adjusting the position of and securing the spur gear, elastically deformable oil seal rings fitting on either side of the gear hub for ensuring a tight fit of the components within the assembly and washers fitting outwardly of the oil seal rings each equipped with a "dog" for engaging the revolving spur gear. The oil pump assembly may also be provided with coverplates, one or both of which contain improved bypass channels that serve to meter the oil in the assembly so as to prevent oil leakage, while also maintaining a supply of oil in the pump assembly so as to prevent friction build up upon starting of the sewing machine.

Abstract: An adjustable inlet including two members which act together to define an opening through which the stitch chain enters a stitch chain cutting assembly to be cut. Each member contains a top and a front side substantially perpendicular to each other. The members are adjustably mounted at the entrace to the stitch chain cutting assembly by a combination of a screw and a pin, which fit through holes located in the front side of each member. The holes are elongated to allow adjustment of one or both members upon loosening of the screw, which adjustment would result in the narrowing or enlargining of the inlet.

Abstract: An oil elimination device for a sewing machine comprising, a needle bar, a needle bar bushing having a channel to receive the needle bar, a collector plate having a bore to receive the needle bar, and a recess adjacent to the bore. The device has a porous member received in the recess, with the porous member being in contact with the bushing and spaced from the needle bar, and a device for applying a vacuum to the porous member.

Abstract: A hemmer seamer assembly comprising an apparatus for positioning a chain of stitches for stitching onto fabric having a needle and a throat plate, including a device for positioning the chain of stitches forwardly of the needle, and a device for moving the fabric to the throat plate for sewing the chain onto the fabric.

Abstract: A sewing machine for the controlled sewing on of a tape from a tape supply onto a tubular edge region of an elastic workpiece thus forming a band, which is provided with an additional feed dog in front of the usual feed dog in the region of the needle plate. The additional feed dog is driven by a stepping motor transversely with respect to the workpiece feed direction and is used to guide and align the workpiece. Sensors control the alignment movement of the workpiece.

Abstract: A hemmer seamer assembly comprising an apparatus for positioning a chain of stitches for stitching onto fabric having a needle and a throat plate, including a device for positioning the chain of stitches forwardly of the needle, and a device for moving the fabric to the throat plate for sewing the chain onto the fabric.

Abstract: A hemmer seamer assembly comprising an apparatus for positioning a chain of stitches for stitching onto fabric having a needle and a throat plate, including a device for positioning the chain of stitches forwardly of the needle, and a device for moving the fabric to the throat plate for sewing the chain onto the fabric.

Abstract: A hemmer seamer assembly comprising an apparatus for positioning a chain of stitches for stitching onto fabric having a needle and a throat plate, including a device for positioning the chain of stitches forwardly of the needle, and a device for moving the fabric to the throat plate for sewing the chain onto the fabric.

Abstract: A hemmer seamer assembly comprising an apparatus for positioning a chain of stitches for stitching onto fabric having a needle and a throat plate, including a device for positioning the chain of stitches forwardly of the needle, and a device for moving the fabric to the throat plate for sewing the chain onto the fabric.

Abstract: A hemmer seamer assembly comprising an apparatus for positioning a chain of stitches for stitching onto fabric having a needle and a throat plate, including a device for positioning the chain of stitches forwardly of the needle, and a device for moving the fabric to the throat plate for sewing the chain onto the fabric.

Abstract: A hemmer seamer assembly comprising an apparatus for positioning a chain of stitches for stitching onto fabric having a needle and a throat plate, including a device for positioning the chain of stitches forwardly of the needle, and a device for moving the fabric to the throat plate for sewing the chain onto the fabric.

Abstract: An apparatus for cutting and positioning a chain of stitches for stitching onto material in a sewing machine having a needle and a throat plate, comprising, a cutting knife adapted to sever the chain of stitches after the chain has been sewn onto the material, a device adapted to move the severed chain to a position forwardly of the needle, and a gripping device adapted to be positioned at a level below the throat plate during sewing of the chain stitches onto the material, and to rise up and grip the thus positioned severed chain, and return to below the level of the throat plate to hold the chain, to effect incorporation of the chain during the initial stitches into the seam being formed.

Abstract: An apparatus for stitching material in a sewing machine having a throat plate having a stitch tongue, a stitch forming instrumentality for forming an overedge stitch having a needle, an upper looper, and a lower looper. The apparatus has first plates for applying tension to a first thread passing to the upper looper, second plates for applying tension to a second thread passing to the needle, third plates for applying tension to a third thread passing to the lower looper, fourth plates for selectively applying tension to the first thread, fifth plates for selectively applying tension to the second thread, and sixth plates for selectively applying tension to the third thread.

Abstract: A sewing machine for sewing a fabric comprising, a reciprociting needle, a hemming device comprising a guide member having an edge guide extending towards the needle, and an elongated hemming guide extending laterally from the guide member and including a device for retaining the fabric in a folded configuration passing towards the needle. The sewing machine has a device for sensing passage of a cross-seam of the fabric as it passes along the guide member, a device responsive to the sensing device for shifting the guide member and hemming guide along with the fabric laterally away while the needle penetrates the fabric in the region of the cross-seam, and a device for returning the guide member and hemming guide along with the fabric to its original position.

Abstract: A hemmer seamer assembly comprising an apparatus for positioning a chain of stitches for stitching onto fabric having a needle and a throat plate, including a device for positioning the chain of stitches forwardly of the needle, and a device for moving the fabric to the throat plate for sewing the chain onto the fabric.

Abstract: An apparatus for positioning a chain of stitches for stitching onto material in a sewing machine having a cutting device, and a first blower for positioning the chain of stitches forwardly of the needle. The apparatus has a second blower for placing the chain in the path of the cutting device.

Abstract: A needle guard for sewing machines having a reciprocating needle, a looper, and a guard member portioned adjacent a lower end of the needle during reciprocation thereof. The guard member has a plurality of faces projecting a different distance towards the needle, and the guard has a device for selectively positioning one of the faces towards the needle.

Abstract: An apparatus for positioning a chain of stitches for stitching onto material in a sewing machine having a needle and a throat plate. The apparatus has a blower for positioning the chain of stitches forwardly of the needle. The apparatus has grasping members for grasping the chain in the forward position. The apparatus also has a cylinder for moving the grasping members between a first position adjacent the throat plate when the chain is being grasped, and a second position away from the throat plate after the chain has been grasped to tighten the grasped chain.

Abstract: A cloth pickup device comprising, first and second elongated jaws. The pickup device has a device for pivotally mounting the jaws about first and second axes substantially parallel to each other and spaced so that the jaws are pivotable from a first position wherein they are in operative clamping position with respect to each other to clamp a piece of cloth therebetween, to a second position wherein they are in an unobstructive open position to allow a piece of cloth to freely pass into a position between the jaws. The pickup device has an overcenter spring device acting directly on the jaws for maintaining the jaws in either the first or second position thereof once moved to that position. The pickup device has a device for moving the jaws from the first position to the second position, and a device for actuating the jaws and moving them from the second position to the first position.