Abstract: A sewing machine is provided which automatically drives an embroidery frame in two directions of X- and Y-axes during the time a sewing needle is disengaged from a cloth to be worked. An X-axis drive system and a Y-axis drive system are provided which drive the embroidery frame in the directions of the X- and Y-axes in a conventional manner. The machine includes an electromagnetic clutch mechanism which selectively engages or disengages a needle bar with or from a needle bar drive system in order to permit an increased stroke selectively for which the embroidery frame is driven for each stitch.

Abstract: An embroidery machine for embroidering a predetermined pattern on fabric includes a sewing head, a cloth frame for supporting fabric to be embroidered with the predetermined pattern for movement relative to the sewing head, first and second drives for moving the cloth frame segmentally in first and second coordinate directions, respectively, and a sewing pattern memory for storing a plurality of signals each of which is representative of an incremental coordinatal displacement of the cloth frame corresponding to individual segments of the predetermined pattern to be embroidered. The embroidery machine further includes a control responsive to the plurality of signals from the sewing pattern memory for actuating the first and second drives and a scaler for modifying the size of the predetermined pattern by modifying the number of segments occasioned in the predetermined pattern by each of the plurality of signals.

Abstract: An embroidery sewing machine is provided for automatically driving an embroidery frame along X and Y axes. The bed of the machine is provided with a pair of parallel slots extending parallel to the X axis. A pair of carriages extend through said slots and the opposite ends of a single Y-axis guide rod which extends parallel to the Y-axis are secured to said carriages. A traveller is movably guided along the guide rod and one of said carriages is movably guided along a similar X-axis guide rod mounted below the bed. A pair of servo motors each having a drive roller are disposed under the bed and the carriages and traveller are each provided with a plurality of rollers. Wires extend around the rollers and rotation of one of the servo motors drives the carriages upon which the Y-axis guide rod is mounted along the X-axis guide rod. The rotation of the other servo motor causes the traveller to be driven in the Y-axis direction along the Y-axis guide rod.

Abstract: A pair of embroidery hoops especially adapted to be used with a sewing machine including an inner hoop of fixed diameter and an outer hoop composed of substantially quadrantly related, arcuate hoop segments adjustably interconnected by circumferentially acting screw type connectors, permitting one-handed adjustment of the outer hoop without distortion of the work material. Each of the two hoops is notched along its upper edge to facilitate movement of the hoops under and out from under the presser foot and needle of the sewing machine. Opposed lug members extend inwardly of the inner hoop and provide surfaces to be contacted by the user's thumbs or forefingers for ease of manipulation of the hoops while doing embroidery.

Abstract: A multi-embroidery machine with a common carrier for the individual embroidery frames, the carrier being mounted moveably in the longitudinal axis of the embroidery machine as well as perpendicularly thereto and being adjustable by a pantograph drive; displacement movements of the pantograph drive, which are executed by a pantograph bar (which bar extends parallel to the carrier behind the sewing heads), are transmitted to the embroidery frame carrier by connection struts. For the longitudinal movement of the embroidery frames as well as for the transverse movement, one data carrier-controlled drive each is provided, which data carrier-controlled drives are controlled directly by the pantograph drive, and the displacement movements of the drives are fed to the pantograph bar.

Abstract: A mechanism equipped with a plurality of crank and slotted cross-head assemblies which provides for a movement after a designed pattern by giving the work fabric holding frame two distinct rectilinear movements in right angled directions dependent upon respective controllings of the rectilinear movements.