Abstract: A connecting rod or similar machine component comprising an assembly of two seperable parts having a spherical or cylindrical bearing surface provided therebetween. The parts comprising the assembly are manufactured from a ductile material, i.e., brass, aluminum or any alloy thereof. The two seperable parts are aligned by providing the confronting surfaces of the respective parts' first and second sides with intermeshing serrations extending in generally linearly, angularly disposed paths. When the parts are assembled, the intermeshing serrations on the parts' first side coact with the serrations on the parts' other side to create a wedging relationship therebetween whereby preventing lateral and lengthwise displacement of the bearing parts relative to each other.

Abstract: A presser foot comprising, a hub having a hollow guide, a plunger having a guide member slidably received in the guide, and a lower portion carrying a sole, with the guide member being biased outwardly in the guide. The presser foot has a guide part secured to the hub guide and having a lower leg directed toward the plunger. The leg and plunger cooperate to prevent rotation of the plunger.

Abstract: A looper throw out mechanism is provided for bodily moving sewing machine loopers from their normal operative position to a servicable position and back. The looper throw out mechanism includes a looper carrier pivotally arranged on the looper drive shaft, a fork like member attached to the looper carrier, a control disc disposed in operative combination with the fork like member for defining the angular displacement limits of the looper carrier, and a manually operated locking device for releasably securing the looper carrier to the looper drive shaft. When looper servicing is desired, the locking device is released by the operator permitting the looper carrier and the loopers to be pivoted to a serviceable position removed from their operative position.

Abstract: This invention relates to a cold forming process wherein a consistent stitch tongue profile is swaged into a planar throat plate blank. Thereafter, excess material resulting from the cold forming process is removed and the required needle holes and thread slots are provided in the blank.

Abstract: A apparatus is provided for creating and maintaining lubricant pressure and flow to various operative mechanisms disposed within the frame of the sewing machine independent of the sewing machine operation. To aid in the lubrication process, a lubricant heater is provided. The lubricant heater operates independent of the sewing machine operation and serves to warm or heat the lubricant to a preset temperature before it is communicated to the bearing surfaces of the operative mechanisms. The invention may further include a device disposed between the lubricant pump and heater for filtering the lubricant before it is delivered to the operative mechanisms of the machine.

Abstract: A method and apparatus are provided for automatically sewing an advancing workpiece. To facilitate subsequent sewing operations, the workpiece length is calculated as the workpiece moves along its predetermined path of travel. If the advancing workpiece length lies within a preselected range of sizes, the workpiece will continue to move along its predetermined path. Should the workpiece length be calculated to be outside the preselected range of sizes, the workpiece is rejected from the predetermined path of travel.

Abstract: An automatic transfer apparatus for delivering textile articles from a first conveyor to a second conveyor; each conveyor moving the articles in separate directions. The apparatus includes an article gripping head mounted for pivotal movement between two positions and a drive mechanism. The apparatus operates such that the article is removed from the first conveyor, subsequently folded in half about its midpoint and deposited on the second conveyor with substantially no horizontal velocity component being imparted to the workpiece in the direction of the first conveyor system.

Abstract: The present invention concerns a guidance system operable in combination with an automatic transfer apparatus. The guidance system is effective to position each half of a folded and hemmed workpiece together in a proper orientation relative to each other and relative to a predetermined path during the time that the workpiece is removed from a first conveyor. The guidance system includes: a pair of workpiece hem aligners and hem guides.

Abstract: The present invention concerns a guidance system operable in combination with an automatic transfer apparatus. The guidance system is effective to position each half of a folded and hemmed workpiece together in a proper orientation relative to each other and relative to a predetermined path during the time that the workpiece is removed from a first conveyor. The guidance system includes: a pair of workpiece hem aligners and hem guides.

Abstract: A method and apparatus are provided for acting upon a cloth in a manner for automatically forming a shirt sleeve from a sleeve blank. The blank is conveyed by a conveyor is a first direction and a hem is automatically formed and secured along a longitudinal edge thereof. The blank is automatically picked up off the conveyor and folded about an axis substantially transverse to the first direction. The transference of the hemmed and folded sleeve is controlled such that the overlapping edges of the folded blank are in substantial alignment relative to one another when deposited on a second conveyor which conveys the blank in a second direction. As the blank is conveyed by the second conveyor, the overlapping and generally aligned edges of the folded workpiece are secured together to form a shirt sleeve.

Abstract: A force transfer assembly connects the output centerpoint of a Cardan gear mechanism to a work performing assembly. The motion of the output centerpoint moving in a first and second plane is translated by the force transfer assembly such that the work performing assembly moves in first, second and third planes. The force transfer assembly preferably includes a rotatable spherical element carried by the output lever of the Cardan gear mechanism, with a slider pin journalled in the spherical element and connected to the work performing assembly.

Abstract: The atmospheric pressure of lubricant containing cavities, from which leakage occurs, is lowered to a point below atmospheric pressure such that air from the environment is drawn thereinto. Since the air being drawn in occupies the passages through which lubricant leakage occurs, such leakage is effectively retarded.

Abstract: A mechanism for transfering workpieces received from an automatic sewing machine and stacking same at a location remote from the machine. The mechanism includes a pivotally arranged stacker device that is movable toward and away from the sewing machine. The stacker device includes a rotational work supporting surface against which the workpiece exiting from the machine is releasably held. The stacker device also includes a mechanism for orientating the workpiece in a predetermined disposition on the work supporting surface of the stacker device during transferance to insure proper workpiece stacking.

Abstract: A sewing machine wherein the various stitch performing instrumentalities are driven by Cardan gear means. Particular sewing part mechanisms are associated with each of said Cardan gear means to produce the desired stitch. Both said sewing part mechanisms and said Cardan gear means being removable, and interchangeable within the frame of the sewing machine.

Abstract: A Cardan gear assembly wherein rotary input motion of the main shaft is converted to elliptical output at the Cardan gear output centerpoint. The Cardan gear output centerpoint is connected via a ball and a pin slideable therethrough to a support having a work performing instrumentality arranged at its distal end. During operation, the elliptical output motion of the Cardan gear output centerpoint is transmuted into three dimensional, elliptical like motion at the tip of the work performing instrumentality.

Abstract: A pneumatic apparatus used in combination with a sewing machine thread take-up mechanism. The apparatus includes a device for directing a stream of air away from the machine's operating components and against the thread passing over the take up mechanism for preventing broken ends or loose thread from becoming entangled with the machine's operating components.

Abstract: A needle cooling apparatus including a nozzle assembly maneuverable between operative and inoperative positions. In its operative position, the nozzle assembly is adapted to direct a cooling medium against the sewing machine needles. The nozzle assembly is operatively associated with a drive adapted to arrange and biasably maintain the nozzle assembly in its operative position in response to machine actuation.

Abstract: A looper throw-out mechanism is provided for bodily moving the looper out of its normal operative position for servicing. The throw-out mechanism includes a looper drive shaft having the looper releasably connected thereto, an operator actuated mechanism for selectively disconnecting the looper from its drive shaft to enable free bodily movement of the looper to an inoperative position, and a locking mechanism to prevent undesirable disconnection of the looper from its drive shaft. When looper servicing is desired, the locking mechanism is released by the operator permitting the looper to be disconnected from its actuating shaft and turned to a service position removed from its operative position. Upon its return, the looper is automatically coupled to its drive shaft in an operative position.