Abstract: A pump system includes a source of fluid under pressure conveyed into a fluid chamber containing meshing gears which are rotated by the pressurized fluid to, in turn, transmit rotation to a unitary valve member positioned in a housing. Rotation of the gears also displaces fluid at a preselected flow rate through an inlet port of the housing and into a first inlet port of the rotary valve member. During the first one half cycle of rotation of the rotary valve member, fluid is conveyed through a first set of aligned outlet ports of the valve member and the valve housing to a water pump for displacing a water piston. The water piston is displaced to convey water through a first conduit. During the second one half cycle of rotation of the rotary valve member, fluid is conveyed through a second set of aligned outlet ports of the valve member and the valve housing to displace the water piston in an opposite direction to convey water through a second conduit.

Abstract: An identifier such as a strip of heat resistant metal, containing preselected identifying information in the form of an alpha-numeric serial number is concealingly retained in a carrier member. The carrier member has a preselected shape and configuration adapted for releasable engagement to a structure, such as an item of personal property, to be identified by information such as the alpha-numeric serial number to disclose in a concealed manner ownership of the structure. In one manner of use, the carrier is an integral part of the structure to prevent visual detection of the carrier on the structure by a thief. The carrier member includes in one embodiment an amorphous body with the metal strip identifier encapsulated within the amorphous body. The amorphous body is indistinguishably attached to an item of personal property or the like, which ownership is identified by the information inscribed on the metal strip and is concealed on the item.

Abstract: A hollow tubular body is welded to a distribution pipeline in surrounding relation with a cut-out portion of the pipeline. A plug assembly is inserted through an opened gate valve attached to the tubular body and into engagement with the tubular body. The gate valve is removed and an operator device is attached to the plug assembly. The plug assembly includes an expandable portion and an insert portion. The expandable portion includes an enlarged first chamber and a reduced second chamber. A plug assembly guide is positioned between the expandable portion and the insert portion. A nonrising actuating stem is rotated to nonrotatably move the plug assembly guide to advance the expandable portion through the tubular body and the cut-out portion to a position abutting the bottom of the pipeline for expansion of the expandable portion.

Abstract: A pair of leg frame members are connected in side by side spaced relationship and are adapted to be inserted in the legs of a pair of trousers to display the trousers in a selected position. Each of the leg frame members includes inner and outer seam supports formed by a plurality of elongated elements that are positioned in end to end relationship. The adjacent ends of the elongated elements are pivotally connected so that the inner and outer seam supports are formed by a plurality of spaced parallel pairs of elongated elements. Thus the pairs of elongated elements for each pair of leg frame members are independently pivotal to a preselected angular position. The pair of leg frame members can then be pivoted at a plurality of pivot points along the length thereof so as to display the legs of the trousers in a plurality of imaginative arrangements.

Abstract: A spalled and deteriorated portion of a refractory brick heating wall of a coke oven heating chamber is dismantled. The deteriorated brick is removed with the undamaged brick remaining in place. Individual thermally destructable forms forming the gas flow passageways are vertically erected surrounding ports in the floor through which preheated gas and preheated air are separately supplied into the heating chamber. A second set of destructable forms having passageways forming the heating flues for receiving the products of combustion are positioned between the forms for the gas flow passageways. Horizontal forms, also forming gas flow passageways, connect adjacent vertical forms for the flow of air and gas from the ports into the heating flues where combustion of the air and gas takes place. When the thermally destructable forms are in place, a refractory material is sprayed onto the outer surfaces of the forms.

Abstract: A trouser construction includes a conventional fly portion formed by a pair of overlapping flaps integral with the trouser waist and including a conventional zipper-type fly closure. In one embodiment, a second or imitation fly portion is removably attached to the waist portion in overlying relation with the conventional fly to simulate the appearance of the trousers being worn with the fly in an open position. In a second embodiment, an imitation fly portion is sewn onto the outer trouser flap that conceals the zipper of the operative fly of the trouser. The imitation fly portion includes a pair of strips of material each supporting a zipper-type track. The strips of material are sewn together and positioned in overlying relation with the trouser flap thereby concealing the trouser flap. The pair of zipper tracks extend from the upper end of the trouser flap to a lower end where the tracks converge toward one another and meet at a slide portion which engages the zipper tracks.

Abstract: A battery housing is formed by a pair of side walls, a top wall and a bottom wall. One end of the battery housing is closed and an opposite end is open. The housing forms a compartment adapted to receive through the open end portion a multicelled planar battery of the type employed in a cassette film pack conventionally used in a self developing photographic camera. A pair of electrically conductive leaf spring terminals are secured to the battery housing top wall. Each of the leaf spring terminals has a first contact end portion positioned within the compartment and a second contact end portion projecting out of the compartment. A sliding switch is mounted on the battery housing. Electrical leads connect the leaf spring terminals to an electrically operated device and the switch. The electrically operated device has a voltage rating which corresponds to the voltage of the multicelled planar battery, for example, six volts.

Abstract: A valve body has a chamber with a lower portion provided with inlet and outlet openings and an upper portion that includes a diaphragm seat having a surface with a presclected degree of roughness. An assembly of individual flexible metallic diaphragms is positioned in a stacked arrangement a graphite gasket positioned on the roughened diaphragm seat. A bonnet bolted to the valve body applies a downward bearing force upon the outer annular edge of the diaphragm assembly to secure the diaphragm assembly and gasket in sealing relation with the valve body to seal the chamber upper portion from the chamber lower portion. A yoke member is secured to the valve body in surrounding, spaced relation with the bonnet. A valve member has a disc portion arranged to move into and out of abutting relation with a valve seat of the valve body to control the flow of fluid under substantial pressure through the chamber.

Abstract: A compound bow includes a pair of limbs that extend from opposite end portions of a handle member. Each limb has a free end portion which is rotatably and eccentrically mounted on a pulley. A continuous cable is reeved about the pulleys and extends between the free end portions of the limbs. The portion of the cable reeved about the pulleys includes devices for engaging sprockets of the pulleys in a manner to permit adjustments in the draw length and draw weight of the cable. A flexible portion of the cable extends between the pulleys and is arranged to receive the arrow. A rigid portion of the cable includes a pair of overlying rigid sections each extending from a respective pulley to the free end portion of the opposite limb. The flexible and rigid cable portions are aligned with the longitudinal axis of the bow to eliminate torque to the limbs at all times.

Abstract: A second workpiece component, such as a rectangular frame member, is positioned on a first workpiece component, such as the end of a rectangular duct. The first workpiece component is engaged by a clamp member secured to a frame so that the first workpiece component remains fixed relative to the frame. A positioning device, which is secured to a securing device such as a spot welder, is moved into abutting relation with the second workpiece component. The positioning device moves the second workpiece component to a preselected location on the first workpiece component while the securing device moves to a preselected location in overlying and underlying relation with the first and second workpiece components. In this position, the second workpiece component is secured to the first workpiece component at a preselected location.

Abstract: A molded polyethylene valve body has a conduit portion and an annular portion extending upwardly from the conduit portion. A passageway extends through the conduit portion for the conveyance of fluid. A valve seat is formed in the conduit portion by a metal sleeve that is molded in the valve body to prevent separation of the sleeve from the valve body during sustained pressures. O-rings positioned in grooves around the metal sleeve are compressed by the plastic material during the molding process to effect a seal between the sleeve and the plastic valve body. An annular rubber sleeve insert is vulcanized onto the inner diameter portion of the metal sleeve. A plastic valve disc is centrally positioned in the conduit portion within the periphery of the rubber sleeve insert and is arranged to sealingly engage the rubber sleeve insert when the valve is moved to the closed position. A metal stem extends through the annular portion of the valve body and is connected to the valve disc.

Abstract: A self-propelled boring type mining machine includes a mobile frame and a pair of spaced apart drive shafts that extend forwardly from a gear box mounted on the frame. A pair of rotary boring heads are nonrotatably connected to the pair of drive shafts and are operable to cut a pair of bores in a mine face to dislodge the mine material. Cusps formed at the mine roof and floor are dislodged by upper and lower cutter chains that are carried by upper and lower cutter bars movably positioned on the front end of the frame. Cutter bar extensions are movably positioned on both sides of the upper and lower cutter bars by control links pivotally connected to the extensions and the mobile frame. The upper and lower cutter bars are vertically extended and retracted by piston cylinder assemblies. Movement of the cutter bars is transmitted to the cutter bar extensions which are guided on the respective cutter bars along combined horizontal and vertical paths.

Abstract: A drill housing includes an internal chamber with a rotatable drill retaining member positioned in the chamber and extending outwardly through the chamber upper open end portion. A hub member is positioned in surrounding nonrotatable engagement with the drill retaining member. A rotary motor is drivingly connected to the hub member to transmit rotation to the drill retaining member. The drill retaining member has a socket for receiving the shank of a drill steel that rotates with the drill retaining member. A first main bearing rotatably supports the hub member, and a stationary bearing carrier supports the first main bearing. A cover plate surrounds the drill retaining member and rotates with the hub member. A bearing seal is positioned between the cover plate and the bearing carrier to seal the first main bearing. The bearing seal has a rotatable portion that rotates with the cover plate and a stationary portion that abuts the bearing carrier.

Abstract: A pair of limbs extending from opposite end portions of a handle member. Each limb has a free end portion upon which is rotatably and eccentrically mounted a pulley. A continuous cable is reeved about the pulleys and includes an arrow string portion extending between the limbs for receiving the arrow. The cable portions extend from the pulleys and through a cavity in the handle member where they are supported by idler pulleys. The pulleys are eccentrically mounted by devices that permit adjustments in the eccentric axis of rotation of each pulley relative to a limb to effect a change in the draw weight and draw length of the bow. Each pulley includes a pair of annular grooves positioned in spaced relation around the periphery of the pulley. A first and second set of slots extend radially through the rim portion of each pulley and into the first and second annular grooves respectively. The sets of slots are diametrically opposed on the rim.

Abstract: An improvement is provided in a portable gas detector used to detect combustible gases, such as methane, which embodies a Wheatstone bridge circuit including a refractory-coated detector element having thereon a catalyst for promoting oxidation of the combustible gas to be detected constituting one leg of the bridge and a refractory-coated reference element constituting a second leg of the bridge. The improvement consists in the application of a cobalt oxide coating to the reference element, whereby the occurrence of spurious signals by the Wheatstone bridge circuit due to causes other than the presence of a combustible gas is greatly reduced, if not completely eliminated.

Abstract: A collapsible frame includes a plurality of legs adapted to engage a floor. The legs are connected by braces to rigidify the legs in an upstanding position. A plurality of arms are connected to the legs to form a plurality of vertically spaced support platforms. Each support platform is formed by a pair of the arms positioned in spaced parallel, horizontal relationship. The pairs of arms are located at selected elevations to provide upper and lower support platforms with at least one intermediate support platform between the upper and lower support platforms. The legs are suitably connected to facilitate assembly and disassembly of the music stand for storage and transportation. The support platforms are adapted to support musical instruments and related accessories, such as percussion instruments, for movement on the music stand to permit the instruments to be placed in selected positions and combinations for playing by the musician.

Abstract: A rotor arm cutting assembly includes a plurality of cutter arm members extending radially outwardly from a hub portion which is adapted for nonrotatable connection to a drive shaft extending from the front of a mining machine. Each cutter arm member includes a front face for supporting cutter bits operable to dislodge solid material from a mine face upon rotation of the drive shaft. A slot extends longitudinally outwardly from the hub portion to the end of each cutter arm member on the front face. A cutter arm extension is positioned for longitudinal movement in the slot. Complimentary guide members and guide ways associated with the extension portion and the cutter arm member maintain the extension portion movable in a longitudinal direction in the slot. The extension portion is extended and retracted relative to the cutter arm member by operation of a fluid actuated cylinder positioned for convenient servicing within a recess in the back of the cutter arm member.

Abstract: An input shaft of a press feed is rotated at a preselected speed and is drivingly connected to a cam that rotates with the input shaft. Continuous rotation of the cam is converted to oscillating rotational movement of a cam follower through a preselected angle of rotation. The cam follower is nonrotatably connected to an output shaft that is connected by an adjustable linkage mechanism through a pair of meshing gears to a driven feed roll. The oscillating rotational movement of the output shaft is transmitted to the driven feed roll to advance the driven feed roll in contact with stock material through a preselected degree of rotation corresponding to a preselected feed length of the stock material to the press. The feed length is adjustable by changing the length of travel of the linkage mechanism with respect to the degree of rotation of the output shaft.

Abstract: An improvement is provided in a portable gas detector used to detect combustible gases, such as methane, which embodies a Wheatstone bridge circuit including a refractory-coated detector element having thereon a catalyst for promoting oxidation of the combustible gas to be detected constituting one leg of the bridge and a refractory-coated reference element constituting a second leg of the bridge. The improvement consists in the application of a cobalt oxide coating to the reference element, whereby the occurrence of spurious signals by the Wheatstone bridge circuit due to causes other than the presence of a combustible gas is greatly reduced, if not completely eliminated.