Abstract: A mine roof bolt and expansion anchor are provided with means preventing relative rotation of the two in a direction tending to withdraw the bolt from the tapered nut of the anchor while allowing relative rotation in the opposite direction, whereby the bolt may be rotationally advanced into the nut as the anchor remains rotationally stationary to effect expansion of the anchor shell within a drill hole. A conventional, two-compartment resin cartridge is inserted into the drill hole ahead of the end of the bolt carrying the anchor. The cartridge is ruptured and the contents thereof mixed by advance of the bolt and anchor while rotating in the direction preventing relative rotation. Immediately thereafter the bolt is rotated in the opposite direction, thereby expanding the anchor and firmly securing it in the hole. The bolt may then be immediately loaded without regard to the setting time of the resin. Three embodiments are disclosed of the means providing the aforementioned relative rotational action.

Abstract: A device for feeding cigarette filters or similar rod-like articles comprises a fluted drum and a conveyor for feeding a stack-like stream of filters towards the drum and including a conveyor band which is arranged to engage one side of the stack-like stream of filters while moving between two longitudinally spaced guides between which the conveyor is capable of deflecting outwards, in response to the pressure of the filters and against a restraining force, to accommodate a variable quantity of filters in the region of the conveyor band.

Abstract: A method of removing sulfur oxides of H.sub.2 S from high temperature gas mixtures (150.degree.-1000.degree. C.) is the subject of the present invention. An electrochemical cell is employed. The cell is provided with inert electrodes and an electrolyte which will provide anions compatible with the sulfur containing anions formed at the anode. The electrolyte is also selected to provide inert stable cations at the temperatures encountered. The gas mixture is passed by the cathode where the sulfur gases are converted to SO.sub.4 .dbd. or, in the case of H.sub.2 S, to S.dbd.. The anions migrate to the anode where they are converted to a stable gaseous form at much greater concentration levels (>10X). Current flow may be effected by utilizing an external source of electrical energy or by passing a reducing gas such as hydrogen past the anode.

Abstract: Germ-killing composition produced by contacting an acid material, preferably consisting of at least about 15% by weight of lactic acid, with sodium chlorite in aqueous media, the amount of acid being sufficient to lower the .[.PH.]. .Iadd.pH .Iaddend.of the aqueous media to less than about 7. Methods of disinfecting and sanitizing include application of either the germ killing composition, or reactants providing in situ production thereof, to a germ carrier including substrates of various kinds as well as an enclosed air space.

Abstract: Improvements in multilayer light-reflecting film are effected by the use of thermoplastic polyester as the high refractive index component of a system in which two or more resinous materials form a plurality of layers.

Abstract: A process is provided for isomerization of monocyclic alkyl aromatic hydrocarbons in a reaction zone maintained under conditions such that said isomerization is accomplished in the vapor phase.

Abstract: A catalytic process is provided for isomerizing an isomerization feed containing an aromatic C.sub.8 mixture of ethylbenzene and xylene in which the para-xylene content is less than equilibrium which comprises contacting said feed, under conversion conditions, with a catalyst comprising a crystalline aluminosilicate zeolite having a crystal size of at least about 1 micron, a silica to alumina ratio of at least about 12 and a constraint index, as hereinafter defined, within the approximate range of 1 to 12 to yield an isomerization product characterized by a reduced ethylbenzene content and an enhanced para-xylene content.

Abstract: A form for a ready-made necktie includes a form body having a pair of outwardly and rearwardly extending wings, a pair of spaced arms which extend rearwardly from the body adjacent the upper end thereof, a shaft which extends between the arms, a pin which extends rearwardly from the body in downwardly spaced relation to the arms, and a clamping member which is pivotally received on the shaft. The form body is constructed for receiving a permanently tied necktie thereon, and the clamping member of the form is operable for clampingly securing the form and the permanently tied necktie on the collar of a shirt of a wearer. The form body, the arms, the shaft and the pin are adapted for unitary construction, and the clamping member is easily assembled on the shaft so that manufacturing costs are minimized.

Abstract: A golf ball position marker holder has a pad joined with a flap with confrontable surfaces of the pad and flap formed of materials that interlock so as to releasibly grip one another. The flap has an aperture of a size and shape such that the spike of the ball marker may extend therethrough while its base may not.

Abstract: This invention relates to a welted pocket opening provided with a flap and to the method of forming the welt and flap from a single piece of material which has been precut from the supply of material.

Abstract: A heart valve prosthesis incorporating a dynamic stiffener element is disclosed. The prosthesis is adapted for securement to the annulus of an atrioventricular valve and has the characteristic of allowing normal movement of the annulus during the cardiac cycle while providing mechanical support to the valve annulus so as to maintain the valve leaflets in proper physiological alignment. The stiffener element has a plurality of reciprocating members allowing it to be modifiable in shape so as to be capable of assuming the optimum shape for a particular heart valve.

Abstract: Pins of hinges connecting a toilet seat and a toilet lid to the body of a toilet bowl are formed as spring pins. The spring pins are tightly fitted in pin insertion holes and give desired rotational friction to the seat and the lid.

Abstract: A foot support for use in a shower stall or bathtub enclosure during showering, whereon a person can rest or support his foot while applying soap thereto, the support including a series of indentation therein that confirm to a bather's foot, either left or right, wherein the foot is rested and supported as it is soaped, eliminating slippage thereof as it is pivoted and canted as it is washed.

Abstract: The patient supporting platform of the present stretcher is supported above an undercarriage by hydraulic lift cylinders to be raised or lowered and tilted into head-up or head-down positions. A backrest is provided on the patient supporting platform and may be inclined at various angles so that the position of the patient supporting platform can be adjusted throughout a wide range of adjusted positions. Foot operated brake levers are provided at each side of the stretcher for at times locking the wheels. Duplicate controls for carrying out the various adjustments of the stretcher, and for controlling the brakes, are provided on each side of the stretcher so that an attendant positioned at either side of the stretcher may immediately make any necessary adjustments of the stretcher while continuously monitoring the condition of the patient.

Abstract: A body support for a bed or a seat having a plurality of resilient support members or springs that are movable between a retracted or collapsed, inoperative position and an extended, operative position. The springs are contained in a case of flexible sheet material so that when the springs are collapsed, the case is collapsed or depressed into a relatively thin layer for storage or other purposes; and when the springs are extended the case will be distended by the springs to provide a resilient support such as a mattress, "box-spring" or a combination thereof for use in a bed or seat. Actuating means is provided for actuating one or more of the springs between the retracted and extended positions thereof, and a connecting means interconnects all of the springs to drive them from the retracted to extended positions.

Abstract: A sheet tent for use with a bed. A sheet is provided with four reinforced holes. A frame having four posts extends upwardly from the bead for supporting the sheet. When the sheet is in place a fastener extends through the reinforced holes and it is received by bores in the top of the post. A means for removably fastening the sheet to the head and foot of the bed is provided. The sides of the sheet drape over the edges of the bed but are not fastened and thereby allow for circulation of air into the tent as well as a means of entering and exiting the bed.

Abstract: A prenatal mattress enabling a pregnant woman to lie more comfortably and safely upon her abdomen during the pregnancy term is disclosed. The mattress can comprise a lower layer of cloth carrying releasable fasteners, a fluid-fillable abdominal cushion, a fluid-fillable head cushion, an upper layer of cloth, and various combinations thereof. The abdominal and head cushions can be disposed in appropriate locations between the lower and upper cloth layers to support the respective portions of the body of a particular user. The cushions can be filled to an extent desired with a suitable fluid, placed between the layers and attached to the fasteners carried by the lower layer by means of coordinating fasteners carried on lower surfaces of each cushion. In use, a pregnant woman can lie frontally downwardly upon the mattress, her abdomen and head being placed upon their respective cushions.

Abstract: Seamless, free-standing, self-supporting waterbed safety liner formed into a prepackaged unit. Sheets of liner plastic are laid-out, the corners folded into hospital corners, and strips of rigid riser material are placed to overlap the folded corners a few inches and secured thereto. The riser material is then rotated 270.degree. along their axes and bent along a medial score to bring the overlapped corner to the outside. Methods of folding the completed liner and installation are disclosed.

Abstract: An apparatus, for carrying a hemodynamic pressure transducer in a hospital bed so that the transducer is maintained in a constant relationship with the level of the heart of a patient in said bed, is taught, which comprises a first, vertical member for mounting said apparatus on said hospital bed, where said first vertical member is adapted to fit into a bracket provided on a hospital bed, and is further adapted to hold an intravenous feeding pole, so that said apparatus may hold an intravenous feeding pole as well as said hemodynamic pressure transducer; hinge means attached to and projecting horizontally from said first vertical member; a second member engaging said hinge means and disposed to project in a direction perpendicular to the axis of said first member; and a third, vertical member to which said transducer is adjustably but securely affixed. The bracket may be an intravenous feeding pole bracket provided on said bed.

Abstract: The present invention comprises apparatus and process for laundering textiles based upon utilizing quantities of an aqueous liquid wash liquor in the wash step ranging from, at least, just enough to be substantially evenly and completely distributed onto all portions of the textiles to, at most, about 5 times the dry weight of the textiles to be laundered. This results in an extremely efficient use of the detergent composition. The present invention also comprises novel wash liquor and detergent compositions for use in said apparatus and process.

Abstract: A tool for making a rivet or expansion nail, i.e. a nail that has at least at one end a laterally expandable portion and is made by cutting off and stamping a nail wire in a single working stroke, wherein the tool includes a guide for a nail wire for guiding the wire in a plane perpendicular to the wire, a cutter having edges disposed in V-fashion, a stamping mandrel arranged in the plane of symmetry of the cutting edges and positioned on the open side of and facing away from the converging point of the V-arrayed cutting edges, and resilient applicators which are pressed by the nail wire during a working stroke of the tool against the action of a spring and lift the nail from the cutter and stamping mandrel during a return stroke of the tool.

Abstract: Height adjustment means for a cylindrical brush in a carpet sweeper with a U-shaped adjusting yoke which loads the cylindrical brush and is mounted in the housing by angled parts molded on the free ends of its members and is loaded at the summit part by a spring connected to an adjusting slide and riding up on ramp surfaces.

Abstract: A street sweeper drag shoe, formed of a horizontally elongated rubber-like strip, having a bottom ground-engaging edge surface, is provided with vertically arranged wear resisting pins embedded within the strip, with the lower ends of the pins exposed at, and flush with, the edge surface. Each pin is formed of a thin wall steel tube filled with a closely packed matrix of particles of hard metal carbide surrounded by a soft, heat conductive, copper-like binder. The tube outer wall surface is provided with surface irregularities, such as knurls or threads. The pins are each forcibly driven endwise into smaller cross-sectional size holes that are pre-formed in the strip and that open at the strip bottom surface. Thus, the strip, rubber-like material resiliently yields as the pin is inserted, and then resiliently grips and interlocks with the tube outer wall surface.

Abstract: A preformed door, preferably of metal, with a frame of wood in which a floating hinge connection is provided allowing the door to be adjusted relative to the frame by way of a hinge securing floating clamping plate disposed within a channel formed in the hinge stile member of the door. The clamping plate is retained by clips frictionally secured between sidewalls of the hinge stile member to prevent the plate from falling away from the channel, while a pair of stops embossed in the channel wall limit sliding movement of the clamping plate within predefined limits.

Abstract: An improved high speed stuffing machine for forming links such as frankfurters. The permanent stuffing horn of a conventional link stuffing machine is dispensed with, and apparatus is provided for utilizing highly compacted shirred casing carried directly on a disposable core, wherein the core serves as a rotatable stuffing horn. A roller chuck is provided for engaging and rotating the cored casing article for purposes of linking, and resisting the thrust of the core due to emulsion flow while providing an emulsion seal between the casing article and chuck to prevent backflow of emulsion. The aft end of the core is received in a quick connect emulsion discharge which provides a bearing surface and a rotating emulsion seal to allow the core to rotate while the discharge remains stationary. The cored high density casing article allows the casing length to be increased by an integral multiple over conventional practice, which results in significant economies in the high speed production of linked sausages.

Abstract: A novel fiber drafting system is disclosed, according to which fibers of sliver supplied continuously are passed through a first pair of rotatable cooperating rollers while being pressed and compacted into a reduced section by and between a space formed by a groove and a projection formed respectively in and on the circumferential peripheries of the rollers of said first pair. The sliver thus compacted is then transferred to and held by and between a second pair of rollers rotated at a higher peripheral speed than the first pair of rollers, whereby the fibers of sliver are drafted successively between the two pairs of rollers without use of conventional aprons for guiding and supporting the fibers in the drafting zone.

Abstract: An apparatus is disclosed for high speed production of uniform webs by air-laydown of textile fibers. A feed batt of staple fibers is fed to a toothed disperser roll that projects the fibers at high velocity and low angle into an airstream of high uniform velocity and low turbulence to form a thin fiber stream from which the fibers are subsequently separated on a moving screen in the form of a web. Air flow control means upstream of the toothed dispenser roll deflects the air stream at a constantly varying angle of deflection to improve fiber laydown uniformity.

Abstract: A pipe clamp has a U-bolt with legs each of which is provided with first and second tandemly arranged frustoconical circumferential ribs with planar annular bases that define the distal margins of circumferential grooves in the U-bolt legs, and a C-shaped sheet metal saddle having a hollow body portion with inside edges that are separated by a space less than the maximum width of the body portion. The saddle has circumferentially slit extremities each of which has aligned transverse internal flanges with opposed inner margins that define split circular openings which are dimensioned to permit the flanges to snap around the circumferential ribs and engage in the grooves. The U-bolt and saddle are adapted to loosely encircle a pipe when the flanges are engaged in the first grooves, and are adapted to firmly clamp the pipe when the flanges are engaged in the second grooves.

Abstract: The invention refers to hose clamps of the U-profiled kind and consisting of steel wire. The hose clamp is double U-profiled and presents both ends U-profiled in order to engage a tension auxiliary spiral spring.

Abstract: An integrally formed fastener molded of plastic material. Such fastener comprises an enlarged head, a shank, shoulders defined near the upper end of the shank, a pair of flexible wings joined to the lower end of the shank, and a pair of stops defined on the shank to limit the movement of the wings toward the shank. The wings flex inwardly until they contact the stops, and then the wings roll inwardly about the stops as the fastener is pushed through aligned apertures in security boxes, panels, etc. While the plastic material, such as polypropylene, possesses sufficient resiliency to be rolled inwardly, the wings will break and/or the shank may fail when the fastener is forcibly withdrawn from its seated position, thus providing a positive indication of an attempted breach of security.

Abstract: A novel suspender fastener is disclosed. The suspender fastener comprises a first lever, a second lever, and a ratchet. The first and second levers are pivotally connected in a manner such that a fulcrum is formed therebetween. A first pair of mutually proximate end portions of the levers are longitudinally spaced from the fulcrum, and form a pair of jaws for engaging a garment therebetween. The ratchet preferably includes a loop for securing a suspender thereto. The ratchet is variably engageable with the first and second levers in a manner such that co-action between the ratchet and the levers causes the jaws to progressively tighten.

Abstract: Mounting device for a rod-shaped proximity switch which is constructed, apart from a tightening screw (10), as a one-piece injection moulded plastic part. The latter has a fastening part (12) provided with holes (14) for fastening bolts; at the ends of the fastening part (12), small block-shaped parts extending away from the fastening part to the side are moulded on, one of which forms a rigid clamping jaw (16) and the other, a small rigid supporting block (18). Between these two blocks there is a moveable clamping jaw (20), also designed to be shaped like a small block, which on the side facing away from the fastening part (12) is connected with the small rigid supporting block (18) by way of a flexible web (22). The small rigid supporting block (18) has, next to the fastening part (12), a threaded hole (24) for a tightening screw (10) to apply pressure to the moveable clamping jaw (20) in the direction of the rigid clamping jaw (16).

Abstract: The clearance necessary for the assembly of the nozzle ring of an axial flow steam turbine is localized through a temporary bolting. The localized clearance is compartmentalized by making a generally radially extending hole centered on the clearance at the circumferential location of the boundary between each pair of adjacent nozzle banks. Pins are driven into the holes and provide a seal between adjacent nozzle banks.

Abstract: The disclosure relates to a method of manufacturing a gas turbine rotor or stator using elastomeric rings for the retention of the rotor or stator blades in a core mold. The elastomeric rings are split to facilitate disassembly thereof from the blade core which is thereafter utilized in a cope and drag casting system.

Abstract: A method of securing a tube, such as a condenser tube for a refrigeration cabinet, to the inside of the outer walls of the cabinet by means of direct welding between the tube and the oil panel of the cabinet. The tubing is formed to the desired configuration and a plurality of projections are formed on the tube for welding to the surface by a crimping action which indents the sidewalls of the tube at each weld location to produce a projection beyond the normal tubing wall while the rest of the tubing remains undeformed. Subsequently, the configuration of tubing is placed on the sheet and resistance-welded under conditions to produce a relatively light weld adhesion with a small weld nugget that does not create any significant discoloration or distortion on the other side of the sheet which becomes the finished exterior surface of the cabinet.

Abstract: A hydraulic pulling tool comprising a piston slidable within a cylinder and having a co-axial bore therein. Lateral passages open from the bore through the piston to the leading face thereof and a screw piston is pushed in the bore by threading a screw pusher so that the hydraulic fluid in the bore is forced out into the cylinder to retract the piston. For a blind riveter, a pair of jaws is driven by a pusher piston also carried at the leading end of the bore so that the build up of pressure causes the jaws to grip a blind rivet firmly.

Abstract: This invention concerns the connection and disconnection of well-pipes in an articulated structure level with the articulation.The device comprises a length of flexible pipe, at one end of which is an adapter containing a sealing device, a positioning device and a locking device, and at the other end of which is another adapter containing a sealing device and a locking device, these sealing, positioning and locking devices being designed to fit into upper and lower receptacles, the upper receptacle consisting of the lower end of the tubing pipe, and the lower receptacle consisting of the upper end of the seabed pipe, the whole connection-disconnection device being able to pass through the upper receptacle.This connection-disconnection device is specially designed for use in articulated hydrocarbon-production installations.

Abstract: Thermal insulation material is installed on the inner surface of a duct by placing and compressing said material on a cylinder, inserting the resulting unit into a duct, and releasing the pressure on said material.

Abstract: A rolling lobe airspring of the type embodying a tubular flexible member of substantially uniform thickness throughout its length and circumference includes a modified piston. The piston includes a recess near its end which is secured to the flexible member. The end of the flexible member lies in the piston recess. A method of assembly of such an airspring is also described.

Abstract: Meshing radially serrated annular pads projecting from the meeting surfaces of two members of a belt drive tensioning device to provide locked incremental angular adjustment of the members are formed by depressing an annular indentation in each member in the side thereof opposite its meeting side so as to cold flow metal to the meeting side thereof and in coining a serrated annulus in the metal thus transferred.

Abstract: Lead making apparatus has normally aligned transfer heads with conductor cutting and stripping blades therebetween. Each head is mounted on a rotatable transfer head shaft and has a slide with a clamp thereon through which wire is fed and clamped. The slides carry followers in respective first arcuate track segments which pivot to pull the slides away from each other for insulation stripping. The transfer head shafts rotate in opposite directions through ninety degrees to align stripped ends with terminating stations as the followers ride through first arcuate track segments into second arcuate track segments, each pair of track segments forming a continuous ninety degree arc of circular track. The second track segments pivot an adjustable amount to push the slides forward for inserting conductor into terminals to an adjustable degree. Transfer head shafts carry pinion gears fixed thereto against rotation and driven by a rack which reciprocates intermittently.

Abstract: A method for screening double heterostructure laser diodes before mounting and packaging is disclosed. At a normal laser diode operating temperature, a range of pulsed current is passed through the laser diode and the lasing threshold current and slope efficiency of the laser diode are monitored. The laser diode is then subjected to a burn-in process in which it is driven at a high junction temperature for an extended time period. Subsequently the lasing threshold current and slope efficiency are again monitored by applying the same range of pulsed current at the normal operating temperature. If either the threshold current or the slope efficiency have changed by more than a predetermined amount, the laser diode is rejected. Otherwise, the laser diode is gauged as likely to have a lifetime greater than a predetermined value at normal operating conditions so warranting further testing prior to installation into a laser package.

Abstract: At present, the majority of semiconductor devices are two-dimensional large-scale integration (LSI) semiconductor devices in which the semiconductor elements are arranged in a semiconductor layer in a two-dimensional manner. An aim of the techniques of production of semiconductor devices is to achieve, in the future, a super high integration amounting to 16 M bits or more per chip. For attaining such a super high integration, a multilayer semiconductor device must be produced. A method for producing a three-dimensional LSI semiconductor device prevents wasteful formation of semiconductor layers and insulating films. The method includes the step of forming, in a first semiconductor layer, a monitoring device for evaluating the circuit function of the semiconductor elements in the first semiconductor layer and subsequently forming another semiconductor layer above the first semiconductor layer.

Abstract: Contacts between polysilicon conductors on the surface of a silicon wafer and doped regions underlying them in the wafer, rendered defective by the growth of a thin intervening oxide layer between conductors and diffusions, are repaired by depositing dots of aluminum on the conductors in the contact areas and annealing the wafer so as to drive traces of the aluminum through the conductors and the intervening oxide into the underlying doped regions in the wafer.

Abstract: The invention relates to a method of manufacturing field effect transistors of gallium arsenide obtained by ion implantation of light donors, such as silicon or selenium, in a semi-insulating substrate of gallium arsenide. In order to reduce out-diffusion of the deep level (EL.sub.2) responsible for parasitic phenomena in the operation of the transistors, the method is characterized in that in addition oxygen ions are implanted in at least the region of the substrate intended to form the channel region of the field effect transistor. After implantation, the substrate is sintered at a temperature between 600.degree. and 900.degree. C. in either an enveloping substance or uncovered, and/or in an atmosphere of arsine.

Abstract: In manufacture of VLSI semiconductor devices, the insulator surface upon which a metallization pattern is deposited must be smooth to facilitate lithographic operations. This requires the insulator to be thick and flowed or otherwise treated to eliminate steep edges. A contact hole etched in a thick insulator has steep sidewalls, however, and so chemical vapor deposition is preferrably used for the metallization so the sidewalls will be coated. A thin insulator coating is deposited after the contact holes are etched and prior to metallization to cover the low-resistance flowed insulator and self-align the contacts.

Abstract: A method for impregnating copper into aluminum interconnect lines on a semiconductor device is disclosed. In a first embodiment, an interconnect pattern is formed on an aluminum layer by etching while the aluminum is substantially free from copper, and the copper is thereafter introduced to the formed interconnect lines. In a second embodiment, copper is introduced to the aluminum layer prior to formation of the desired interconnect pattern. The copper-rich layer is removed from the areas to be etched prior to etching. The method facilitates chlorine plasma etching of the aluminum which is inhibited by the presence of copper. The method is also useful with various wet etching processes where the formation of a copper-rich layer is found to stabilize the aluminum layer during subsequent processing .

Abstract: An electrical current input to a pneumatic signal output transducer construction wherein the signal is substantially proportional to the current and is generated by a pneumatic relay of the construction that is controlled by an electrical current receiving unit of the construction, the current receiving unit comprising a fixed electrical coil that is adapted to have the current flow therethrough and a movable armature disposed in the coil and being operatively interconnected to the relay to control the relay in relation to the position of the armature relative to the coil.

Abstract: A method of manufacture for forming a novel magnetic read/write transducer head of the type utilizing thin film materials. The method of manufacture comprises steps which deposit a thin film magnetic recording head on a selected substrate having dimensions which enable batch manufacture of a thin film magnetic transducer in combination with its supporting slider assembly. The substrate of selected material in large wafer form is subjected to a series of thin film deposition, etching and plating operations to form a plurality of thin film magnetic heads thereon. Thereafter, the substrate wafer is diced around each thin film magnetic transducer head with subsequent finishing and polishing to requisite shape thereby to yield the complete slider and transducer head assembly.

Abstract: A method for forming a thermal printing head comprising a base of electrically insulating material, a glaze layer formed on said base so as to form an elongated projection thereon, said glaze layer comprising a main portion and a portion integral with and extending from said main portion, at least one thermal printing element formed on said main portion of said glaze layer, and an area formed in said extending portion of said glaze layer to relieve said glaze layer of surface tension when glaze is sintered and then cooled to form said glaze layer on said base.