Abstract: A method of making a field effect transistor in which a gate electrode is provided on a semiconductor layer and then the surface subjected to electron or ion bombardment to form the source and drain electrodes on opposite sides of the gate, acting as a mask, and spaced apart by the width of the gate.

Abstract: A method for making an IGFET is described. The method utilizes impurity ion implantation into the surface channel to determine the conductivity thereof. The advantages include special impurity profiles providing improved performance, better control over important parameters such as threshold voltage, the manufacture of improved tetrodes, and the manufacture of improved ICs using for example N- and P-channel devices, and depletion and enhancement devices combined in a single chip.

Abstract: A stator, for use in an alternating current motor, includes a core having a plurality of angularly spaced slots. A distributed main winding is concentrically arranged in a plurality of the slots, with these slots encompassing a first arcuate region of the core, less than its circumference. End turns for the main winding are positioned adjacent an end face of the first arcuate region of the core. This provides a second arcuate region of at least one end face of the core free of the main winding. In a first embodiment, an auxiliary winding, displaced in phase from the main winding, is received in a plurality of the slots, including at least some slots in the second arcuate region. In the first embodiment, end turns of the auxiliary winding in the second arcuate region are disposed inwardly of the radially outermost edges of the slots in the second arcuate region along at least one end face of the core.

Abstract: A ramp type analogue to digital converter including an integrating circuit the output of which is first set to a level dependent upon the magnitude of an analogue input voltage to be converted. A reference signal is then applied to ramp down the integrator output level to a datum level and the conversion is effected by counting clock pulses while the integrator output is ramping down to datum level. The magnitude of the reference signal and the numerical weighting of the clock pulses being counted are scaled down by a common factor when the ramp reaches a value close to the datum level so that the slope of the ram is reduced and the resolution of conversion is increased as it approaches datum. Thus, compared with a ramp type digital voltmeter having a constant slope discharge ramp and a given resolution, the discharge time is reduced for the same resolution of conversions.

Abstract: A surgical gown having a central and side portions (hereinafter referred to as panels) and outer belt means. The belt means comprises two tie strings or the like, one of said ties being attached to the central panel of the gown near one of the two side panels. The other tie is attached to the second of the side panels near the outer edge thereof. The free end of each tie is releasably grasped by a transfer device which holds the ties in a position overlying the outer surface of the central panel. During the gowning procedure, the transfer device becomes the means whereby a sterile assistant may effect final closure of the gown without becoming contaminated or whereby a non-sterile assistant may effect final closure of the gown without endangering or destroying the sterile character of the gown. Preferably the gown also comprises inner closure means for further securing the gown in the waist area.

Abstract: An article of wearing apparel adapted for use as a tie, scarf, neck-piece, hood, belt, or the like, is formed of an elongated fabric member having an intermediate portion and opposite end portions joined together by a respective pair of first and second fabric portions or layers connected at spaced points to define passages therebetween. The first and second fabric portions of each pair are each of a width substantially less than a width of the intermediate portion and the opposite end portions whereby when one of the end portions has been moved through the passage adjacent the other end portion, fabric portions resist attempts to pull the one end portion through said passage.

Abstract: A toilet tank flapper valve providing user selection of either a full or partial dispensing of the liquid contents of the tank. A novel ball-check valve particularly located in the flapper valve either obstructs water from entering or permits it to enter the buoyancy chamber of the flapper valve. When water is permitted to enter, a partial dispensing action results.

Abstract: A hollow fiberglass bulkhead is constructed for submersion in a swimming pool. Two boxes open-top and open-ended are joined, a shelf is added, end supporting hardware is added, a bottom is placed on the box and the ends are closed and the box is then inverted to be installed in the swimming pool. Balsa wood plates provide rigidity and partial flotation while two end rollers prevent the bulkhead from becoming twisted as it is moved along the pool.

Abstract: An adjustable bottom for swimming pools wherein the raising and lowering mechanism is self-locking including positive and gradual movement in the raising and lowering of the adjustable bottom including means outside the pool for operating the mechanism.

Abstract: A sanitary lift for a toilet seat ring pivoted to a toilet bowl with the under surface of the toilet seat ring being spaced above the top of the bowl includes a base member secured to the under surface of the toilet seat ring with an outer edge adjacent to the outer edge of the ring. A shield member which depends from the outer edge of the base member spans the gap between the under surface of the ring and the top of the bowl. A lift member extends outwardly from the shield member with a manually engageable under surface for lifting the toilet seat ring without the user's fingers or the lift member touching the toilet bowl or being soiled by its contents.

Abstract: A trap for use in connection with sinks, laundry tubs, and the like, with the bottom wall of the dip portion of the trap having an elongated opening, a bottom or closure member detachably secured to the trap for closing the opening, and blocking means secured by said bottom or closure and having means extending into the trap and into the bottom or closure member for blocking the passage of foreign objects and the like without interfering with the flow of the water. The bottom or closure member is readily removable for access to the interior of the trap for cleaning same and the like.

Abstract: In a mattress support including a tubular frame which comprises elongated longitudinal side members and shorter transverse end members, the combination with a hanger handle which includes a straight elongated shank with a hook at one end thereof. The short transverse end member of the frame is indented in a semicircular conformation adjacent the junction with a longitudinal side member for the sliding reception of said elongated shank, there being in spaced relation to said indentation a second indentation which also receives the hanger shank thereby providing a pair of spaced supports for said shank.

Abstract: A support device having a flexible, non-elastic base sheet which can be positioned upon the flat surface of a bed and a plurality of separate inflatable cushions each secured along one edge to the base sheet so that said cushions provide support for the buttock and hip area of the patient as well as the legs of the patient, the cushions being individually inflatable in order to normally provide an air cushion for the patient and to raise the patient into position for use of a bedpan or into other desirable orientations. Two of the support devices can be attached together to provide support for the patient's back and shoulders in addition to the patient's buttock, hip and leg area.

Abstract: A foundation in the nature of a bedspring for use beneath a mattress to support the same upon a bedframe or the like, having a peripheral base frame for supporting the foundation and having structure rising from the peripheral frame inwardly thereof to provide a stable, elevated platform which is substantially unyielding in its central area under the normal loads imposed upon a bedspring, and which, at least in its side edge areas, is resiliently yieldable in response to vertical load.

Abstract: A retractable suspension system adaptable for land, water, or amphibious vehicles substantially comprises: a bottom suspension arm having a wheel-axle assembly associated with its first end; a top suspension arm; spring means for interconnecting the arms; a horizontal suspension beam axle fixedly attached to the vehicle frame; and means attached to the vehicle frame and to the first end portion of the top suspension arm for adjusting the rotational orientation of the two arms about the suspension beam axle whose center is coincident with the second ends of the two arms. The suspension system can be partially retracted to accommodate for uneven load distributions on the vehicle and for levelling the vehicle on nonuniform terrain while it can be fully retracted for water use. Straight carry-through members which are extensions of the vehicle frame can be utilized to form the suspension beam axle.

Abstract: An inflatable boat comprising inner inflatable tubes in an outer tube, the inner tubes and the outer tube being fabricated from flat sheet stock by a method involving stitching a bottom seam of the outer tube with the outer tube in place on the inflated inner tubes.

Abstract: An article of clothing having a pocket portion containing an inflatable envelope, and a compressed fluid container for inflating the envelope whereby, upon inflation, the envelope is forced out of the pocket portion, the article of clothing being particularly suitable during times of emergency in the water when a wearer of the clothing enters the water and requires an immediate additional buoyancy aid.

Abstract: A shoe last having an insole securing member comprising at least one blade projecting from the last bottom and being undercut to form a hook-like projection which resists dislodging of the insole.

Abstract: A cleaning apparatus for overhead conveyor rails particularly for meat packing plants having a traveler riding the rail and a cart moving below the traveler. The cart has tanks containing cleaning and oiling fluids; a hydraulic fluid reservoir; and a hydraulic pump driven by an electric motor. The traveler has a first brush driven by a hydraulic motor for scrubbing one side of a rail; a second brush driven by a hydraulic motor for scrubbing the other side of the rail; heads for spraying the rails with cleaning, rinsing, and oiling agents; grooved support-drive trolley wheels riding the rails and a hydraulic motor driving one trolley wheel. Lines between the cart and the traveler supply the traveler with agents and hydraulic power. A skin encloses the traveler containing spray and channeling used agents to a drain hose.

Abstract: A brush for the care and cleaning of things and the body and particularly for body massage, comprising a brush body shaped linearly and/or curved in order to fit an object to be treated, characterized by the fact that multiple-surface brush body is provided on at least two surfaces with a tipping, for instance of bristles, fibers, or the like whose properties with respect in particular to density, structure, hardness, material, and cut are different, on the two surfaces.

Abstract: A wiper blade is provided with a silent connection between two of the articulated parts thereof. The one part may be made of metal and has an inverted U-shape in cross section with flared lower edge portions at the outer connecting ends of said part. Aligned openings are formed in the side walls of the connecting ends of the metal part with said openings being in vertical alignment with said flared edge portions. A plastic part is pivotally attached to said metal part by means of a pair of aligned outwardly projecting lugs engaging in said openings in said first part. The top edges of the lugs are tapered outwardly. A vertical opening or slot is formed in said plastic part between said lugs to permit the lugs to deflect inwardly as the metal part is urged past the lugs and into articulating relationship when the lugs snap into said openings.

Abstract: A detachable luggage caster roller unit comprising a caster roller which is swivelly supported by a base plate and a separate seat adapted to be secured to a bottom or lateral end of the luggage to receive and anchor the base plate of the caster roller. The seat for anchoring the caster roller comprises a substantially rectangular plate of a predetermined thickness having a cavity with two symmetrical grooves adapted to embrace the opposite sides of the base plate. The cavity at its bottom is provided with two symmetrical slits to form a resilient tongue with a weir positioned in an outer end thereof and adapted to prevent the base plate of the caster roller unit from slipping out the seat.

Abstract: An electromechanical door holder-closer includes a conventional door closer which has a shaft rotatable in response to movement of a door between its open and closed positions and resilient means for yieldably resisting rotation of the shaft in one direction. A latching mechanism cooperates in a latching position with a uni-directional clutch mounted on the shaft to permit free movement of the door from its closed position toward its open position and to releasably retain the door in a selected hold-open position therebetween when the latching mechanism is held in cooperative engagement with the clutch. The latching mechanism is releasably retained in its latching position by a normally energized electrically operated holding mechanism.

Abstract: A collapsible cylindrical shipping container and joint-forming tape structure therefor is disclosed, wherein the cylindrical side of the container is formed of at least two relatively stiff but flexible sheet wall members having mating edges joined by a tape structure of X-like configuration permitting the wall members to be flexed from a normal collapsed, face-to-face position into an expanded volume-defining position. This latter relationship is maintained by the insertion of end closure means in at least one end of the container thus formed. A joint-forming tape structure used in the container is also disclosed.

Abstract: Overlapping ends of metal strap or the like are connected without the aid of an overlying supplemental seal or fastener by means of longitudinally spaced joints which form a one way interlocking relationship. An integral abutment means comprises juxtaposed protuberances, integral with the overlapping strap segments, which irreversibly override each other as the interlocking relationship is formed and present spaced stops which abut each other before a formed interlock can disengage when the overlapping strap segments are shifted relative to each other in an interlock disengaging direction.

Abstract: The invention relates to a clip which can be used to releasably fasten a member such as a display panel in a frame. The clip has a configuration such that it can be mounted on the frame, and a stop for supporting the panel which is held by a resilient or flexible arm which moves towards or away from a body of the device in order to allow the panel to be mounted on or de-mounted from the frame.

Abstract: A closure, or latch, especially for passenger seat belts in which a housing on the end of one belt portion has a slot for receiving a tongue on a member on the other belt portion. Within the housing are roller bodies engaging each other and spring biased toward the tongue. The tongue is provided with notch means for engagement by a roller body to effect latching while a disengaging member moveably carried by the housing is operable for moving the roller bodies into disengaging position.

Abstract: A grumment for sail cloth in which two rings are positioned around the edge of a hole therein which edge has been ravelled and has a thermosetting adhesive smeared thereon and tightly clamped against the edge by a torus-shaped collar enclosing the rings.

Abstract: There is disclosed apparatus for preventing explosive separation of a heavy spring loaded first portion of a parking brake chamber from a second portion thereof. A clamping band, typically secured by a fastener assembly, is provided at the interface between the two portions of the chamber to maintain them in operative engagement. The apparatus disclosed insures continued engagement upon accidental or inadvertent release of the clamping band under spring loading.

Abstract: A stuffer crimping apparatus in which an outer hollow wheel and an inner roller wheel are mounted on eccentrically positioned rotatable shafts with the outer rolling surface of the inner wheel being pressed toward the inner rolling surface of the outer hollow wheel to form an extended nip zone engaging the yarn. The two wheels also form between their rolling surfaces a yarn feed chamber at the entry to the nip zone and a crimping or stuffing chamber adjacent the exit of the nip zone. The apparatus is particularly useful for crimping synthetic thermoplastic yarns.

Abstract: A rotating receiving plate is provided having a vertical axis, onto which the coiled yarn package is formed. Said receiving plate is urged upwardly against a rotating depositing disc, the axis of rotation of which is eccentric with respect to the axis of rotation of the receiving plate. The depositing disc is carried by a rotating hollow shaft presenting an upper open end and a radial bore in correspondence of its bottom end integral with the depositing disc. Integral in rotation with the depositing disc there is provided a thread guide. To the supporting frame there is secured a fixed member presenting an outer annular friction surface. The yarn is withdrawn from a suitable supply, passes through the hollow shaft, out of the radial bore, it is further laid onto at least a portion of the annular track and it is hence positively fed, through a bore provided in the depositing disc, onto the receiving plate, in loops progressing along an annular path, to form a coiled yarn package.

Abstract: A yarn singeing burner, comprises a housing which has a vertical yarn passage defined threthrough, and a front wall having an entrance opening to the yarn passage. An insert member is located within the passage, and has a wall portion spaced inwardly from the housing, so as to define a burner fuel and air chamber therebetween. The insert member is provided with a plurality of apertures for the passage of a singeing flame jet which is generated by the burning of fuel and air which is directed into the fuel and air chamber, defined between the insert and the housing. A yarn guiding channel extends through the yarn passage between the flame jets and the yarn, and it has an open side which is opened to the entrance for the passage of the yarn therethrough.

Abstract: This disclosure relates to a boring head having two support ledges and a cutter that may be rotated when the cutting edges become worn so as to provide new cutting edges. The cutter is developed as an irregular hexagon the sides of which form a section of the sides of two equilateral triangles which are superposed on each other around an acute angle. The boring head includes a recess for the cutter having contact surfaces against which at least one of rake surfaces behind the cutting edges will bear so as to fix the cutter in a predetermined operating position in which one of the cutting edges cooperates with the two support ledges to provide centering of the boring head in a bored hole.

Abstract: A method for manufacturing fan blades which are adjustable in operation. The adjusting means comprises a compressed air box for actuating each fan blade by means of a dog member, said box and said member being non-rotatable on the fan wheel axle. The fan is easy to construct to different demands for capacity due to the fact that fan blade shafts are made in a number of exchangeable preselected standardized sizes and always has the same above mentioned arrangements for the rest of the fan.

Abstract: A plural range pressure regulator construction having a housing provided with an inlet and an outlet separated by a valve seat that is controlled by a valve member that is interconnected to a flexible wall carried by the housing. Biasing means are carried by the housing for acting on one side of the wall to tend to move the wall in one direction relative to the housing, the biasing means comprising a plurality of separate spring means each acting on the wall to provide one pressure range for the pressure regulator construction. The housing has a storage space for storing one of the spring means so that the same will not act on the wall whereby the remaining spring means acting on the wall will provide another pressure range for the pressure regulator construction.

Abstract: A method for forming the grooves in single and multigroove sheet metal pulleys, including shaping and/or crimping of the groove walls, wherein the grooves are formed by a sequential, single step, continuous process from a punched or drawn blank without intermediate handling and/or displacement of the blank using both axial and radial pressures, wherein the applied radial pressures or forces are substantially less than the applied axial pressures or forces. The pulley may have grooves of the same or different pitch and of the same or different diameter.

Abstract: Apparatus for inserting wires into terminals in an electrical connector having the terminals arranged in two parallel rows comprises a support plate having spaced apart side-by-side wire jig means thereon and having a connector jig means pivotally mounted between the wire jig means. Each wire jig means locates a plurality of wires in side-by-side parallel relationship with the wires spaced apart by distances which correspond to the spacing of the terminals in the connector. Each wire jig means has associated therewith inserting means so that wires in the jig means are inserted into terminals in one of the rows when the connector jig is swung against the wire jig.

Abstract: A machine for inserting pins or pegs in the holes of needle selecting cylinders for circular knitting machines. According to the disclosure, the machine comprises a cylinder spindle and a side support movable longitudinally of the spindle, having placed thereon a device for inserting the pins in the holes of said cylinder; said device being controlled to sequentially operate by signals provided by a device for directly reading the pattern; a pin feeding means having a gravity storage means provides for feeding the pins in aligned relationship in front of a pusher member of said inserting device.

Abstract: A tool permitting the changing or replacing of a shock absorber helical spring, the tool including a base on which a shock absorber is mounted in a position parallel to the base with one end of the shock absorber being restrained, a shock absorber length adjustment shaft is positioned on the base adjacent the other end of the shock absorber, a hand lever is positioned on the adjustment shaft with strategically located pins on the hand lever being inserted between coils of the spring, and the hand lever is then moveable to cause compression of the spring sufficiently far to enable removal of a spring retainer and thus removal of the spring.

Abstract: This invention discloses a novel and improved method of seating a bearing, especially for use in chair controls for tiltable chairs. A multi-pointed star-shaped hole is cut in the support and a bearing, preferably made of nylon, which has a series of circular rings on its periphery, each ring diminishing in diameter, is placed in the hole as far as it will go. The bearing is then fused into the hole and the hole cuts the bearing so that shavings are forced into the undercut part of the next largest ring. This provides a secure and tight fitting bearing and removes any necessity for bearings to be made of exact tolerances. The process may also be subject to a fully automated process at a greatly reduced cost.

Abstract: Method of preparing an insulated negative buoyancy conduit wherein a jacket is placed around the conduit and an insulating material comprising a porous filler and a resin-forming composition is positioned in the annulus between the jacket and the conduit.

Abstract: Containers such as tanks, bins, cylinders, and the like, are constructed from a plurality of arcuate sections. The sections are formed on the ground, or other support surface, and lifted therefrom in a suitable manner to cooperate with other like sections during erection of the containers. Each section is formed by a plurality of strips laid on a concave jig so as to conform thereto. Beams reinforce the strips, which are tied together as by welds, and the like, to form a sheet. Shapers are advantageously removably attached to the sections for holding same to a required shape until the sections are connected together, and for holding adjacent sections in position relative to one another until suitable connection between the sections is made.

Abstract: A transducer assembly comprises a thin diaphragm of silicon having at least one piezoresistive element located in a central active area of the diaphragm. The diaphragm has a metal ring containing terminal accommodating apertures about the periphery thereof. The metal ring bounds the outermmost portion of the diaphragm designated as a non-active area. An annular housing fabricated from a high dielectric material has a series of wire accommodating grooves in a side wall thereof each one aligned with a predetermined one of said terminal accommodating apertures. The metal ring is secured to the annular housing with the active area of the diaphragm surrounded by a central aperture of the annular housing. The metal ring is secured to the housing by an electrostatic glass bond.

Abstract: A method of producing a semiconductor arrangement comprises electrolytically depositing a thickening onto a metal layer, at the contact points for the semiconductor arrangement, which metal layer is intended to eventually form conducting paths for the semiconductor arrangement and effectively covers the relevant semiconductor body surface.

Abstract: A low cost pressure transducer can be manufactured and assembled with automatic or semiautomatic production line techniques. The transducer includes a pressure fitting, a diaphragm, a strain gage comprising a bridge circuit and tabs with leads for the bridge circuit, and a termination board, all contained within a case. One end of the case is swaged over a flange on the fitting in order to sealingly clamp the diaphragm between a shoulder in the case and the fitting flange. The bridge portion of the strain gage is adhesively secured to the diaphragm. A pressure distribution member is placed over the bridge so pressure may be applied to the assembly during heat-curing of the adhesive which secures the gage to the diaphragm. The termination board has four terminals and a corresponding number of conductive strips. It is positioned in the case so that each of the conductive strips is pressed into electrical contact with a corresponding lead on the tabs of the gage.

Abstract: A technique is disclosed for using a commonly available, inexpensive and rugged tool for assembling together a cover and a base portion of a wiring device of the type providing a switch, junction box or outlet receptacles, and of the type wherein wires are connected electrically in the wiring device during assembly of the cover and base portion together.

Abstract: The disclosed invention is an accessory for an electric shaver of the type having a removable cutting head equipped with one or more motor driven cutting blades. The accessory has a rigid body provided with a cutting blade receiving pocket or recess. The top face of the pocket is closed and has exposed to the cutting blade an abrasive material suitable for sharpening the blade. The body is of a size and shape that it may be interchanged with all or a portion of the cutting head on the razor and permits engagement between the razor's drive mechanism and a cutter blade while the same is engaged with the abrasive material so that operation of the razor's blade drive will drive the cutter blade while it engages the abrasive surface.

Abstract: A safety razor comprises an elongated handle that has a pair of arcuate, laterally spaced guide rails; a support member that has a pair of elongated guide means for sliding cooperation with the respective guide rails; a spring that acts between the handle and the support member to bias the support member towards a medial position of pivotal adjustment relative to the handle; and a shaving unit for detachable interengagement with the support member to position its cutting edge parallel to the pivotal axis.

Abstract: A dental instrument comprising a metal shaft having a resilient extension at one end and a further functionally closely related instrument such as a periodontal probe or mirror at the other end. The resilient extension has two deformable surfaces which can be pressed against a tooth to test its mobility. The periodontal probe is color-coded, so that the depth to which the projection has been inserted into the gingival sulcus and any existing periodontal pocket is readily apparent to the dentist. The dental instrument can include a percussive hammer adjacent the resilient section.

Abstract: Adjustable drawing sweep apparatus is disclosed which includes a flexible sweep pivotally secured to one end of a base member and extending to an adjustable lever secured to the opposite end of the base member. The lever includes a plurality of notches into which the flexible sweep may be disposed and it also includes adjustment means for pivoting the lever with respect to the base and to the flexible sweep member.