Abstract: A portable testing device is disclosed for testing the electrical circuits of power tools and cables having a general three-conductor wiring circuit including a first test station for checking the wiring polarity of an outside electrical receptacle from which the testing device operates and a second test station having a testing circuit and receptacle for receiving a plug of the power equipment being tested for detecting the existence of a defective ground circuit in the power equipment. A third test station is provided for checking the ground continuity of a power tool wiring circuit. A fourth test station is provided for checking the wiring conditions of a three-conductor extension power cable having a three-prong plug carried on one end and a three-socket receptacle carried on the other end.

Abstract: An electrical signalling device for a nurse call electrical communication system comprises a switch box, switch means carried by the switch box for activating a call signal at the nurse station, and a manually operable actuator member carried by the switch box for actuating the switch means. An audible signal means is connected to the switch means for producing an audible signal at the bed location in response to actuation of the switch means and immediately after activation of the call signal. An adjustable biasing means is provided for adjusting the amount of force necessary for applying the actuator member to actuate said switch means.

Abstract: A method and apparatus for removing trash and the like from an elongated collection chamber provided on an open-end spinning apparatus. The trash, after separation from the fibrous material, is deposited in the collection chamber. A conveyor belt running through the collection chamber removes the large, coarse trash particles therefrom. A pneumatically intermittently operated collecting device removes the finer trash particles from the collection chamber without adversely affecting the separation operation wherein the trash is initially separated from the fibrous material. In one particular embodiment, a stripper cooperates with the conveyor belt that is used for removing the coarse trash particles for successively positioning a stream of air through the collecting chamber for removing the finer trash particles therefrom. A mechanical stripper is utilized with the stream of air for removing the fine trash particles from the walls of the chamber.

Abstract: A woven multiconductor cable and method of making the same includes at least two longitudinal sections arranged in a side-by-side manner having a plurality of elongated conductors and a cut-line formed between the sections along which the filling strand of the woven cable may be cut along a desired length of the cable to separate the cable into individual sections which remain bound by alternate picks of the filling strand.

Abstract: A curved woven cable having a plurality of conductors and a method for constructing the same is disclosed wherein warp binder strands and a fill strand are interwoven with the conductors with at least one void area being formed in which the conductors are not interwoven with the warp strands and fill strands so that the cable may be curved. In a preferred method, the void area is formed by weaving the warp strands and fill strands with the conductors removed from the weave to form a weave portion floated outside of the conductors but which remains an important structural portion of the cable in maintaining its curved configuration.

Abstract: A front screen is illustrated having a nose portion extending from beneath the cylinder between the cylinder and the doffer wherein orifice means are provided for directing air under pressure forwardly therefrom for avoiding collection of fibers on the side and corner areas of the nose of the screen.

Abstract: A warp beam bearing for a loom which includes a projecting arm carried on each side of the loom frame. A guide surface is provided on each of said arms for receiving a shoe which has an arcuate surface provided thereon. A cylindrical sleeve is detachably secured to each end of the warp or loom beam for supporting said loom beam in said arcuate surfaces of said shoe. A stop surface engages one side of the cylindrical sleeve for properly positioning the beam on the loom. A pivotal spring biased clamp engages the other side of the cylindrical sleeves for pressing the sleeves against the stop surface when said beam is in a running position. A low frictional surface is provided on the clamp where the clamp engages the cylindrical sleeve. In removing the beam from the loom the clamp is pivoted out of engagement with the cylindrical sleeve and the shoe is shifted along the guide surface to a remote position wherein a truck can lift the beam.

Abstract: A fireplace heat exchange apparatus includes a bottom plate and a top plate spaced above the bottom plate providing a hearth for the fireplace. A front wall stands between the top and bottom plate having an air inlet manifold laterally spaced at one end thereof and an air outlet located adjacent the other end thereof. A plurality of spaced curved vane members extend between the inlet and outlet manifolds to provide a plurality of curved air distribution passageways through which air flows in heat exchange relationship with the vane elements.

Abstract: A device for separating the platens of a press so that wooden blanks in an unpressed form can be readily loaded therebetween. The device includes outwardly extending arms carried on the corners of each of the platens. Pneumatically operated bellows are provided between cooperating pairs of outwardly extending arms which are carried on diagonally opposite corners of each of the platens for separating the platens when pressurized. Alternate pairs of platens have pairs of bellows interposed between the outwardly extending arms carried on different diagonals. A switch is carried below the press for disengaging the pneumatic system when the press is being closed.

Abstract: A device and method for securing a reserve winding of thread on a tube supported on winding apparatus having a main thread guide and a thread delivery source wherein a reserve winding is formed from thread extending to a thread-holding device and thereafterwards severed with the free end of the reserve thread deflected toward the longitudinal center of the tube and covered with thread subsequently laid by the main thread guide.

Abstract: Apparatus and method are illustrated for removing solids from filter media supported by a backup roll wherein an elongated brush exerts a flicking action on the solids collected by the media during a filtering operation and deposits the solids upon a splash plate where the solids are collected for reclamation. Spray means are provided for directing a backwash of water across the filter media on a side thereof remote from the brush for cleansing the filter media.

Abstract: A system and apparatus for growing plants in a nutrient solution while supported in an inert medium contained in a pot container includes a nutrient solution reservoir and automatic feeder apparatus for maintaining a predetermined level of nutrient solution in the container including a tube member connected to the reservoir having an open end carried a predetermined distance above the container bottom for dispensing the solution. An air vent communicates with the tube member allowing air to enter the reservoir in response to the level of nutrient solution in the container falling below the open end of the tube member as the solution is drawn by capillary action through the media into the roots. The nutrient solution flows into the container until the open end of the feeder tube is covered so as to continuously maintain the level of nutrient solution. An overflow opening drains excess liquid from the pot preventing overwatering and stagnation when used outdoors.

Abstract: A method and apparatus for picking up a yarn and transferring it to an empty pirn following exchange with a full bobbin on a yarn winding unit on which yarn is extended between a pair of yarn draw-off rolls and a yarn holding device includes a pair of auxiliary draw-off rolls intermediate the draw-off rolls and the yarn holding device for positively drawing yarn from the draw-off rolls to produce a forced conveyance zone therebetween in which the yarn is conveyed essentially without strain and a yarn grabber device for grasping the yarn in the forced-conveyance zone and drawing out the yarn far into the region of a yarn catching device carried on the pirn.

Abstract: A free span arch structure is illustrated including transversely spaced elongated flexible structural sections flexed from a substantially straight configuration when unflexed into a substantially parabolic configuration without exceeding the yield point of the structural sections so as to impart a permanent set thereto. Means are provided for supporting and for restraining the structural section adjacent the ends thereof against outward and downward movement retaining the sections flexed in the parabolic configuration. The method contemplates lifting structural sections, which are illustrated in the form of aluminum pipes, by exerting a lifting force as by a crane intermediate the ends thereof in a medial portion, and then raising an intermediate portion of the pipe by the application of the lifting force while supporting the opposed ends of the pipe as on the ground or otherwise as in the case of a roof, on the walls.

Abstract: The present invention is related to a casting for muffling sound conducted through solids and reducing noise in internal combustion engines and to a method for production of the casting.

Abstract: A woven electrical cable comprising a plurality of longitudinal conductor wires arranged in a substantially side-by-side manner for transmitting signals with a pair of longitudinal ground wires carried between adjacent conductor wires longitudinally coextending in a substantially parallel relationship with said conductor wires providing an associated ground wire on each side thereof for isolating a respective conductor wire. The conductor wires and ground wires are interwoven with insulating fiber strands to define a woven pattern with the associated ground wires being spaced from each respective conductor wire in the woven pattern so as to isolate and set the impedance of each conductor wire at a desired impedance value whereby the cable impedance may be controlled producing transmission of uniform signals with reduced cross-talk interference.

Abstract: An open-end spinning apparatus having a fiber conveying path between a fibrous material feed device and a spinning compartment. A trash separating device which includes an aperture and a dividing edge is provided for removing trash from the fibrous material as it is conveyed along the conveying path extending around an opening roller. A collection chamber is provided for receiving the trash from the trash separating device. Interposed between the trash separating device and collection chamber is an auxiliary chamber. A first aperture extends through a wall of the auxiliary chamber through which a stream of air flows for being introduced into the fiber conveying path. A second aperture is provided in an opposed wall of the auxiliary chamber through which a smaller stream of air is removed from the auxiliary chamber along with small particles of fly and trash.

Abstract: A method and apparatus for automatically leveling a band of fibers such as sliver, roving and the like by varying the drafting speed of a drafting mechanism responsive to variations in the thickness of the band. Analogue signals are produced by variations in the thickness of the band and are converted to digital signals for being stored in a digital register. After a period of time, corresponding with the time for conveyance of the scanned point in the sliver up to and into the draft zone, the information is read out of the storage register and converted back to an analogue signal. The analogue signal is compared with another signal representing the actual drafting speed for producing a compared signal for controlling the drafting speed.

Abstract: An apparatus for feeding a carding machine with fiber material having a shaft which is fed by a preceding feed shaft. The fiber material is conveyed into the feed shaft by means of a stream of air flowing through a conveying conduit. An air circulating passage is connected between the feed shaft and the filling shaft. An air conveying device is disposed in the air circulating passage for conveying the stream of air emerging from the feed shaft into the filling shaft for compressing the fiber material therein.

Abstract: An abduction pillow is illustrated wherein a wedge-shaped body is constructed of synthetic foam material for positioning the limbs in cushioned fixed divergent position and means are also illustrated for supporting and cradling the foot and ankle portions of an orthopedic patient.