Abstract: A cylinder and dial circular knitting machine is provided with:1. a positive feed means that feeds a yarn and a striping box that may feed a draw thread or yarn,2. adjustable placer and raise cams, and3. means for controlling the operation of such striping box and cams so as to cause the machine to knit fabric separable at single courses of draw threads into strips of predetermined widths with locked and non-running edges.4. disengaging means for the positive yarn feed including a mechanical connection extending from said adjustable cams to the positive yarn feed.

Abstract: This disclosure relates to feed mechanisms for sewing machines, particularly industrial sewing machines. A reciprocatory advance motion is imparted to a feed dog means by an eccentric means connected to a driven shaft in the machine and to a feed advance shaft which imparts an oscillating motion to the feed dog means. A feed dog lift means for imparting a lift motion to the feed dog includes an eccentric means also connected to the driven shaft. The mechanisms for imparting advance motion and lift motion to the feed dog are connected to a common fulcrum pin to provide a sturdy and stable mechanism capable of operating at high speeds with minimum noise and vibration.

Abstract: A method and apparatus for removing a flow control device mounted between two opposed flanges of a pipeline wherein the flanges are clamped together by a plurality of studs. The method comprises the steps of clamping a pair of axially expandable flange spreaders to hold the opposed flanges in axial aligned position. Next, all of the studs are removed or loosened to permit access to the flow control device. Stop means are appended to the flange spreaders at the inside basis of the flanges. Lastly, the flange spreaders are expanded to permit removal of the flow control device from the pipeline. Reversal of the procedure will permit reassembly of the pipeline.Each of the flange spreaders comprises a pair of interconnected members that are axially expandable or contractable, and initially are clamped in position to hold the opposing flanges in axial alignment.

Abstract: A circular knitting machine is provided with pattern wheels having jacks movable between needle actuating and non-actuating positions and with means for differently positioning the jacks in the wheels for each of a predetermined number of revolutions of the machine.

Abstract: A control system is disclosed for providing a dual voltage electrical power supply for a variable load such as an electro-mechanical clutch-brake power transmitter of the type used for instance for a loom transmitter. A control arrangement is disclosed in which high voltage is continuously available under control of low voltage timing and drive circuits.

Abstract: A circular knitting machine for producing loop fabric is provided with fabric holding means and with sinkers peculiarly adapted to enter and hold previously formed loops during the knitting process.

Abstract: A vacuum cleaner filter bag condition indicator that detects when the bag is substantially full and should be replaced. The indicator includes a pressure responsive member having internal filter bag pressure applied to a small area of one side thereof and filter bag compartment pressure applied to the entire other side. When the bag becomes substantially full the bag pressure increases and the increased pressure differential causes the pressure responsive member to move slightly to allow the filter bag pressure to act on the entire area of the one side. The pressure responsive means thereafter quickly moves toward the lower pressure side and forces an indicator button out the cleaner.

Abstract: An automatic buttonhole sizing device for sewing machines which includes a sensing wheel which by resting on the material being sewn, turns as the material is fed and has a rotatable setting ring which programs the size of the buttonhole. Incorporated in the sensing wheel are one fixed and one movable tab for holding any one of many buttons of various sizes therebetween, wherein the size of the button determines the position of the movable tab. The movable tab is so associated with the setting ring of the sensing wheel that when the two tabs are positioned touching opposite sides of a button by rotating the setting ring, the size of the buttonhole is automatically determined from the final positioning of the setting ring.

Abstract: A feed regulator shaft lock for a sewing machine operative during the feed of a work material to insure retention of a selected feed against feed back of forces from the feed dogs. A radially functioning cam is supported on a feed shaft in timed relationship to a feed lift cam also supported thereon. A brake member is affixed to a feed regulator shaft, on which a feed regulator is also supported for selective variation thereof by a manual control or by a cam. A shiftable member extending between the cam on the feed shaft and the brake member on the feed regulator shaft may be urged by the cam into pressure contact with the brake member during that portion of the sewing cycle when feed of the work material is effected.

Abstract: A tufting machine having corrugated yarn tension rolls for pulling out the slack from the yarn. The tension rolls are mounted in pairs and supported at their ends in bearing brackets. The pair of brackets at each end of the roll pair are hinged together so that one may be pivoted relative to the other. A quick release clamping member preferably having an expandable diameter pin and a cam handle connect each pair of brackets together and act to rapidly disconnect them upon turning of the handle. An adjustable screw is provided to adjust the separation between the rolls.

Abstract: A feed regulator clamping device for a sewing machine, operative during the feed of a work material to insure retention of a selected feed against feed back of forces from the feed dogs. The device includes a clamping plate supported by a feed shaft to extend between the feed regulator and a stationary object such as a boss of the sewing machine frame. A face cam affixed to the feed shaft, which also supports feed cams, engages with the clamping plate during the feed of the work material thereby to cant the clamping plate and create a frictional connection between the feed regulator and the sewing machine frame.

Abstract: An improvement in a logic controlled sewing machine which permits an operator to vary by electronic means ornamental pattern bight and feed, manual stitch control, or individually control forward and reverse feed to achieve, for example, an optimum balanced buttonhole or ornamental variations to patterns. Operator influenced means are effective to signal the logic to apply a holding signal to FET switches, maintaining the FET switch in the conductive state. Closing of the FET switch inserts the wiper of a rheostat in bypass arrangement in the feedback circuit of an operational amplifier between a digital-to-analog converter for feed or bight and, respectively, a feed or bight servo amplifier system. By changing the magnitude of the resistance in the feedback circuit of the operational amplifier, the gain may be altered, thereby to control the signal to the feed or bight linear actuator for variation of stitch length or pattern width, respectively.

Abstract: A home knitting machine is provided with electronic control means which function pursuant to patterning instructions on a program card and in response to the operation of row controlling switch means by an operator causing needle actuators on the carriage of the machine to be selectively operated and fabric knitted in a prescribed manner on the machine.

Abstract: A linear motor for use, for example, in sewing machines for controlling needle vibration as to amplitude and/or fabric feed both in magnitude and direction, said motor comprising a frame having an internal central pole piece spaced intermediate two permanent magnets of the high energy product type which are attached to the frame, the central pole piece providing supporting means for movable coil member integrally formed with connecting arms pivotally fastened to an actuator arm carried on a pivoted potentiometer shaft. The permanent magnets are secured through their own magnetism to the frame and are each locked in proper orientation by a non-metallic retainer which is locked to the magnet and additionally formed with a closure panel, said closure panels cooperating with the motor frame completely to enclose a compartment for the movable coil member effecting both a minimum external leakage field and a dust proof unit.

Abstract: A three-chamber gas meter having a two-chamber cartridge inserted into a casing, the interior of which forms the third chamber. The meter is of compact design and readily mass produced. The cartridge carries a valve plate which communicates to each of the chambers and also to the inlet and the outlet. A rotary valve connected to the valve plate will sequentially and selectively connect the chambers between the inlet and the outlet to measure the gas flow through the meter. A flag and crank assembly is operatively associated with the cartridge to connect the rotary valve and the diaphragms, which expand and contract to actuate the internally connected flag and crank assembly, thus to rotate the rotary valve. A pair of flag rods are journaled in the cartridge and included in the flag and crank assembly.

Abstract: A re-programmable memory is provided for storing information data which may be used for controlling the stitch position coordinates in the operation of a sewing machine. The memory is provided by a strata of locally magnetizable material of which the magnetization may be relatively easily induced or erased. Relatively movable with respect to the strata are coding magnets which in comparison with the strata are permanent, and by which coded data may be selectively induced on the strata in the form of local magnetized areas. The stored data may be extracted from the strata either by direct mechanical linkage responsive to the local magnetized areas on the strata or by electrical output signals generated by a Hall effect device or the like in response to the local magnetized areas on the strata.

Abstract: A tufting machine having a needle bar for mounting a multiplicity of needles reciprocable into and out of a work piece. The needle bar has a longitudinally extending channel open to face the work piece for securely receiving an insert spaced from the longitudinally extending walls of the channel. The insert includes a multiplicity of grooves facing the respective longitudinally extending wall, and a needle is securely received intermediate each of the grooves and the corresponding wall.

Abstract: A knife block for mounting at least three cutting knives in fine gauge cut pile tufting machines. The knife block has a pair of longitudinally extending spaced flanges connected together by a pair of laterally spaced apart web portions spaced longitudinally from each other. At least one knife is adapted to be received between the flanges intermediate the webs, and at least one knife is adapted to be received between the flanges laterally outwardly of each web. A method of making the knife block is also disclosed as including the steps of cutting at least one pair of knife receiving grooves in the flanges in the lateral space between the webs by feeding a rotating cutting blade from one extremity of the block substantially to the inner edge of one web and then turning the block and feeding the cutter from the other extremity to form at least one continuous knife receiving groove extending the full longitudinal width of the flanges.

Abstract: A convertible sewing machine bed which includes a base having a longitudinally extending cylinder bed and a spring biased work supporting panel that is movable in one direction with respect to the arm and simultaneously shiftable in another direction with respect to the cylinder bed. The shifting movement is effected by the camming action of a single latch detent being moved into and out of a latch seat. The single latch detent and the latch seat, when in engaging relation, also serve to hold the support member in a work supporting position contiguous to the cylinder bed.

Abstract: An adaptor for converting an upright vacuum cleaner for use as an above-the-floor cleaner. The adaptor includes an open ended housing which is removably fitted over the front of the cleaner chassis and includes an air chamber communicating the cleaner nozzle opening with one extremity of a hose. The adaptor includes yieldable gripping members for engagement with the upper surface of the cleaner chassis. It also includes camming tabs and resilient fingers spaced apart across the outlet opening of the air chamber for entry into the cleaner nozzle to secure the adaptor laterally while the gripping members draw the adaptor tightly against the cleaner nozzle.