Abstract: A portable ink-jet printer and sheet feeder which can be battery powered. The printer may be manually fed paper for operation independent of the sheet feeder. The printer and sheet feeder are mounted on a base and locked at 90 degrees to one another. They may then be rotated into two operating modes in which automatic sheet feeding occurs, one of which provides a straight paper feed path for relatively stiff print media and/or printing relatively dense graphics. A paper output system includes a pair of wings and a deflector which place various arches in the paper as it emerges from the printer to maintain it over the previously printed sheet to permit it to dry. The printer may be configured by driving a print carriage having an arrow thereon to different positions adjacent a menu. When the arrow is opposite a desired configuration option, the option is selected by pressing a button.

Abstract: An improved surgical scrub brush for providing an aseptic skin condition for surgeons and other hospital personnel who participate in surgery. The scrub brush provides for the simultaneous and expeditious aseptic cleansing of the digital, inter-digital, and web areas of the hand as well as the forearm, while at the same time reducing or eliminating skin abrasion and trauma brought about by numerous scrubbings. The scrub brush includes a soft cleansing pad having channels that allow for simultaneous use so that the user can select either bristles or the soft cleansing pad to reduce skin trauma. Additionally, the brush includes an attached fingernail cleaner and reservoir for dispensing antiseptic soap or skin conditioners.

Abstract: A jack extension tube for use on power seat adjuster mechanisms for vehicles is provided comprising an elongated tube having a first section and a second section spaced from the first section. A threaded member includes a knurled outer surface and is frictionally retained in the first section by inwardly extruding the tube onto the threaded member, the threaded member being engageable longitudinally from one end of said tube by a jack screw. The second section of the tube includes a pair of transversely oriented opposing apertures formed in the tube sidewalls and adapted to receive a pin-like member or fastener. The material defining the apertures is extruded in the transverse direction followed by collapsing the tube sidewalls so that the opposing flanges abut one another. Thus, the flanges provide a continuous, enlarged, work-hardened bearing surface to support the pin-like member or fastener.

Abstract: A self aligning joint and linkages employing the self aligning joint. The joint includes a stem; a clevis mounted for rotation on one end of the stem and defining a pair of spaced arms; a stud having a circumferential groove proximate one end thereof; a body member positioned between the clevis arms and defining a socket mounting the one end of the stud for rotation about the axis of the stud; and an axle pin mounted at opposite ends in the clevis arm, passing through the body member to mount the body member for angulation about the pin axis, and including an intermediate portion positioned in the stud groove to preclude axial displacement of the stud out of the socket.

Abstract: To improve the corrosion protection at the connection site of the sealing cuff and the ball pivot, a ball joint with a sealing cuff (7), made of an elastically deformable material, is proposed, which is connected, with an edge profile (9), to a ball pivot (2) in a positive-locking manner in the direction of rotation around the longitudinal axis of the ball pivot (2) and has an elasticity that compensates for the maximum rotary and swiveling movements of the ball pivot (2) relative to the housing (1).

Abstract: A connecting fitting for securing a rail of a drawer to a rear or side wall thereof. A supporting member supports a rear end of the rail. A securing element is screwed into the rear end of the rail and includes a locking device by which the securing element is suspended in the supporting member. The supporting member has an open slot which widens in the manner of a keyhole into a receiving opening. A spring ring is located in the receiving opening, or the securing element is lockable in the receiving opening by friction or by locking elements.

Abstract: An access cover assembly (10) has a cover member (12) and a frame member (14). The cover member has twelve vertical wall sections (36) with adjoining vertical edges (38) and twelve canted surfaces (40) with adjoining angled edges (46) depending downwardly from said vertical wall sections (36). The frame member has an upwardly facing frusto-conical section (80) and a number of substantially vertical edges (82) depending downwardly from an inner periphery (81) of said section (80), said inner periphery (81) being shaped such that when said angled edges (46) engage said inner periphery (81) when the cover is partially seated in the frame, the cover rotates towards a fully seated position in the frame member (14), whereupon the cover falls into and is locked within the frame member.

Abstract: Vulcanizing apparatus including a sealable vulcanizing vessel having an access cover on the top thereof, and a mold to be inserted in the vulcanizing vessel. The length of a rubber sleeve provided to cover the unvulcanized rubber belt molding A formed over the external circumference of the mold is sized a little longer than the height of the mold so that both ends of the rubber sleeve when placed in covering position protrude slightly from both the top and bottom ends of the mold. A holding seat is provided in the lower part of the vulcanizing vessel, and a pressing seat corresponding to the holding seat is provided on the access cover via a cylinder unit so that the pressing seat can be extended and retracted as required. The inner structures of both the pressing seat and holding seat include cooling jackets.

Abstract: A boom for collecting material floating on the surface of a body of water comprising: a first collapsible tube which can be stored either as flat layers of folded material or by rolling it on a roller; transverse seals along the length of the first tube to create a longitudinal sequence of first compartments; and, a second tube within the first tube, the second tube having transverse seals to form a longitudinal sequence of second compartments, these second compartments being generally concentric with the first tube and the first compartments. Pressurized gas communicates with each of these separate compartments so as to provide pressurization thereof.

Abstract: The present invention relates to a subsea pipeline and method utilizing the pipeline wherein the loss of pipeline contents resulting from a break in the pipeline is reduced. The loss of pipeline contents is reduced by providing a plurality of traps in the pipeline. The traps each comprise at least two elevation changes in alternating directions. Any water entering the pipeline through a breach will only displace pipeline contents from the breach to the adjacent lower trap.

Abstract: A temporary support for a mine roof is mounted on a mobile roof bolter, and includes a main support frame pivotably connected to the bolter, a main support beam and a ground contacting beam, both extending along the same axis in front of the main support frame, and connected to each other and to the main support frame by a scissors pivot joint and a leveling pivot joint, respectively. When the scissors pivot joint opens and closes, the main support beam and ground contact beam raise and lower with respect to each other and with respect to the ground. A cross beam is mounted on the main support beam and transverse to the axis thereof, and raises and lowers in the same plane with respect to the mine face, to contact and support the mine roof. For a high lift version, the scissors pivot joint is telescopically extendable.

Abstract: A cylindrical bit including a drill head with a centering tip, two circumferential cutters, two main cutting edges extending approximately radialy, and two chip channels associated with main cutting edges. The chip channels are open toward a circumferential surface and toward a rear of the cylindrical bit. To improve chip removal, each chip channel bottom surface is rounded in a curved fashion and blends continuously with the respective chip surfaces of the corresponding main cutting edges and with chip channel side walls opposite the respective chip surfaces.

Abstract: A burnishing drill includes a cylindrical shank and a drill body connected to the shank. Drilling edges, first reaming edges and second reaming edges are formed on a first reduced diameter portion, a second reduced-diameter portion and a third reduced-diameter portion respectively located at a foremost end of the drill body. Each of the reaming edges is inclined with respect to the longitudinal axis of the drill at an angle which is set so as to be within a range of between 5.degree. and 30.degree.. During a boring operation using the drill, a hole is drilled by the drilling edges and the drilled hole is then worked by the first reaming edges and the second reaming edges to provide a smooth inner wall in the drilled hole. Since each of the reaming edges is formed to extend radially outward from the foremost end of the drill and incline axially in the rearward direction at a relatively small angle, the centering property can be greatly improved.

Abstract: A drill comprising a solid shank with a first, tip-forming end having cutting edges on opposite second end and a number of flutes corresponding to the number of cutting edges. The flutes extend from the tip end towards the other end and have the purpose of forming and conveying chips from the corresponding cutting edge. At a predetermined distance from the tip, each individual flute turns from a first, chip-forming zone with a predetermined width or cross-sectional area into a second, merely chip-conveying zone with a larger width or cross-sectional area. After having been formed in the first zone, the chips are given the possibility of dilating in the second zone, in order to facilitate chip conveyance.

Abstract: A multi-tool apparatus is useable for hobbing cylindrical blanks using a tool that has an axis of rotation that extends parallel to a line perpendicular to an axis extending through the center of the blank. The tool and the blank are both rotated during the cutting operation. The tool is spaced from the axis of rotation of the blank and linear movement of the tool is only in a direction parallel to the axis of the blank.

Abstract: A method is provided for embodying a plane reference defined by a specific equation within a rough surface of a frame of a structure being assembled. The equation characterizing the reference surface is stored in a memory. With the aid of an optical sighting mechanism, spatial data is obtained which makes it possible to calculate an equation characterizing the rough surface. The data relating to the equations of the reference surface and the rough surface are compared in an information processing unit. A mobile machining device is positioned close to the rough surface. The machining device is controlled by specific orders generated by the comparison of the equations for the reference and rough surfaces respectively. The machining device gradually rectifies the rough surface to make it progressively coincide with that of the spatial equation of the reference surface.

Abstract: An axially compliant tool assembly for a programmable position controller is disclosed. Various construction details have been developed which provide a responsive means to make the tool axially compliant to deviations between the programmed path of the tool and the surface being worked upon by the tool. In one particular embodiment, the axially compliant means includes a base, a sleeve axially movable relative to the base, a tool disposed on an internally splined shaft, and a radial bearing disposed between the shaft and the sleeve. The sleeve includes a flange which defines in part two sealed cavities wherein the differential pressure between the two sealed cavities provides a working force for the tool and wherein the flange may move axially within the limits of the sealed cavities.

Abstract: A wheel chocking system for restraining road vehicles being transported on a vehicle support surface of a transport vehicle is disclosed. The support surface has a grating disposed in at least a wheel support area where one or more road vehicles are positioned. The grating is formed by a grid of rods to which is secured chock members at desired positions relative to the position of the wheels of the road vehicle positioned over the wheel support area. Each chock has a base with disengageable attachment members in a lower engaging surface thereof to immovably secure the chock to the grating. The chock has an angled face plate which is positioned relative to an outer tread surface of a tire of a wheel to restrain movement thereof. Load transmitting members transfer a load applied to the face plate onto the base member and into the grating secured to the support surface.

Abstract: A spiral member for improving the grip of screws in wooden or other receptive substrates is disclosed. The spiral member has a central axial drive pin by which it can be driven into a thread in the receptive substrate, and it has an improved cross section providing wings or protuberances extending out past the side surfaces of the cross section. The spiral member also has an outwardly facing triangular apex which bites into the old thread while the wings bear upon the flanks of the screw thread of the screw that inserted into the spiral member, thereby improving the grip.

Abstract: A plug is suitable for use in preformed blind holes in rigid and soft material and also holes in sheet form material. The plug comprises a head portion joined to a tail portion by four identical legs, all having flexing points towards their ends and in a central portion, the radial thickness of the legs increasing towards the central portion, so that the outer diameter of that portion is greater than the diameter of the tail portion and the head portion, and the transverse thickness of the legs decreasing towards the central portion.

Abstract: The currently used method for the replacement of joints greatly limits how the joint can be used. This invention overcomes these limitations returning the joint to full normal use. This is accomplished by my development of a system of joints that stay intact up to just short of bone breaking. At this point it will pop out. It can then be reset simularly to resetting a normal joint. This invention also includes a system for total limb replacement including limited action joints. Also included are various clamps to assist the surgeon.

Abstract: A method and apparatus for controlling the movement of an end point of an articulated arm in the x, y and z directions using a manually operated resolved motion control by controlling the component of velocity of the end point in each of the x, y and z directions to change by the same amount for a given change in the component of displacement of the manual controller in the respective x, y and z directions provided the total displacement in the selected x, y or z direction is less than a preselected displacement in the respective x, y or z direction and the end point is within a preselected work space.

Abstract: Apparatus for lifting objects into preformed openings in buildings. These openings can be recessed. The apparatus has a frame which has a head section and a tail section. The head section and tail section are rotably mounted to each other. A backstand is provided which is attached to the head section for preventing the objects to be lifted from moving as the objects are transported. Supports or forks are also provided which protrude from the head section and are used to support the objects to the transported. The apparatus has a leveling system which includes movable counterweights attached to chains. The movable counterweights balance the effect of the objects that the apparatus supports, keeping it level in the horizontal direction. The backstand can be folded down into the head section and the tail section folded onto the head section. Prior to or after use, as the apparatus is a lightweight, compact system, it can be transported in a pickup truck.

Abstract: A forklift truck has front and rear wheeled sections coupled by a central pivot. The wheels of the rear section are driven independently of one another. In order to prevent tire scrub when the two sections are in an extreme position in which the center of turning lies under or close to one of the driven wheels, the driving of the rear wheels controlled to stop or reverse the drive of the wheel closer to the turning point.

Abstract: An industrial robot is provided with robot hands (44, 46) capable of being moved by turning actions between a workpiece handling position to which a workpiece is transported and at which the workpiece is fed to the chucking device (10) of a machine tool and a standby position away from the workpiece handling position. The robot also incorporates a robot hand (42) capable of being turned in a plane at the workpiece handling position to align a workpiece with the chucking device (10) of the machine tool, and a pneumatic cylinder actuator (48) capable of linearly moving the robot hand (42) toward the chucking device (10) and away from the chucking device (10) so as to remove a workpiece from the chucking device (10). The industrial robot can be readily fixed to the bed of the machine tool by bolts, for example.

Abstract: A pile board inserting machine comprises two pile board inserting units installed in combination respectively with the two sheet piling units of a sheet-fed printing press. Printed sheet are delivered alternately to the two pile board inserting units every time a predetermined number of printed sheets are delivered to each sheet piling unit, and the pile board inserting unit associated with the inoperative sheet piling unit is operated to insert a pile board while the sheet piling unit is at rest.

Abstract: A process and device for compacting stacks of cutouts in a packaging machine wherein the stacks arranged in an orderly manner are removed by a grip element supported by a head of a removal and transfer unit. The stack is transferred to a compacting station fixedly mounted in a position above a feeding station of the packaging machine. and is inserted in the compacting station which is equipped with an abutment element having an inlet shaped complementarily to one end of the cutouts. Pusher elements which are rigidly associated to the head and frontally define a profile being shaped complementarily with respect to the end of the cutouts opposite to the one inserted in the compacting station, act on the stack upon advancement of the head for inserting the stack in the inlet of the abutment element, thereby compacting the stack.

Abstract: A stacker assembly receives signatures and supports the signatures as an intermediate stack is formed. A jogger assembly engages an intermediate stack supported by the stacker assembly to accurately align edge portions of the signatures. The stacks of signatures are deposited onto a turntable to form a main stack. The turntable rotates the main stack to offset relatively thick folded edge portions of signatures. The stacker assembly includes a plurality of slats which are moved along a first continuous circuitous path by a first drive assembly. The stacker assembly also includes a plurality of slats which are moved along a second continuous circuitous path by a second drive assembly. The drive assemblies move the slats along the continuous circuitous paths with the longitudinal axes of the slats horizontal and parallel. The jogger assembly has jogger plates which extend into central portions of the continuous circuitous paths along which the slats are moved by the drive assemblies.

Abstract: A rotary viscosity pump is provided that has a housing and an impeller. The housing has a conical chamber with an outlet at a narrow end of the chamber. The impeller has a conical section with a logarithmic spiral groove along its exterior. The spacing between the housing and the impeller can have either a constant gap or a gap that decreases along the length of the impeller. The depth of the groove can be constant, increase, or decrease in depth along the length of the impeller.

Abstract: In a turbo machine with magnetic bearings on both sides and dry gas seals for the rotor, the axial thrust acting upon the rotor and generated by the pressure difference between the pressure side and the suction side is compensated for in that a dry gas seal provided on the suction side and the end of the shaft are acted upon by a certain pressure, which generates a compensating axial thrust, so that the resultant axial thrust becomes as slight as possible. Advantageously, this pressure is regulated via the bearing gap of an axial magnetic bearing of the rotor such that the bearing gas assumes a predetermined value.

Abstract: A turbo compressor in which a rotor having impellers is supported by a magnetic bearing is constructed such that a control valve is provided in a thrust balancing line connecting a suction line of the compressor to a balancing chamber formed outside a balancing drum provided at one end side of a rotor. The control valve serves to regulate a rate at which a gas flows through the thrust balancing line, and is adapted to be controlled in relation to a load imposed upon the magnetic thrust bearing.

Abstract: A turbine casing includes circumferential walls delimiting an annular stream for the flow of gases. The radial arms traversing the stream are completed by a channeling part on the downstream side which is bolted to the arms. The walls are formed of butt-joined tiles assembled together and joined to collars situated on the arms and the channeling parts by riveted ridge tiles. The invention results in a reduction of resistance to the flow of gases, as well as absorption without the production of excessive stresses of the original thermic dilations in the walls.

Abstract: Ship's propeller having a propeller blade having a leading edge and a trailing edge and a free end, and end plates at the free end extending transversely of the blade on both sides of the blade. The line of attachment to the blade of each of the end plates has a chord length less than the chord length of the blade end and the lines of attachment of the end plates overlap each other partly, one end plate extending to the blade leading edge and the other end plate extending to the blade trailing edge. The end plates have airfoil configuration and have leading edges that extend outwardly and rearwardly of the blade with respect to the direction of movement of the blade.

Abstract: A scroll type compressor comprising: a crankshaft having an eccentric shaft portion formed thereon; an orbiting scroll which is given torque by the crankshaft through the eccentric shaft portion; and bearing means for rotatably supporting the crankshaft; wherein at least one of the eccentric shaft portion and the bearing means is constituted by a rotatably engaged bushing and a curved surface portion.

Abstract: An axial flow fan device capable of reducing the stagnant flow at the root area of blades. These blades 18 are arranged so that they extend radially from a boss portion 14 so that they are circumferentially spaced along the circumference of the boss portion 14. Each of the blades 18 has an arc shaped cross section having a bending ratio value .alpha., that is a ratio of the bending height h of the arc shape to the length l of the chord of the arc shape. The value of the bending ratio rapidly increases from the middle portion of the blade to the root portion. The value of the bending ratio at the root portion is about 12%.

Abstract: The objects of the invention are to prevent the backflow of slurry by first enclosing it in a closed space and then using air to force it along a discharge channel, and at the same time to ensure the smooth throughput of the slurry by causing any foreign bodies in the slurry to be broken up en route. To this end, the invention is provided with a casing enclosing a circular cross-section rotor chamber and a rotor which fits inside said rotor chamber and which is caused to rotate by a drive means. The rotor is also fitted with blades en bloc which extend radially from the rotating center section and which form moving chambers that rotate along with the rotor inside the rotor chamber. The casing is also provided with an intake port that connects with the moving chambers at the slurry intake point and a discharge port and air supply port, each of which connects, with the moving chambers at the slurry discharge point.

Abstract: A pump having no moving parts which can be used to pump high temperature molten metal or other fluids in a vacuum or low pressure environment, and a method for pumping such fluids. The pump combines elements of a bubble pump with a trap which isolates the vacuum or low pressure region from the gas used to create the bubbles. When used in a vacuum the trap prevents the pumping gas from escaping into the isolated region and thereby reducing the quality of the vacuum. The pump includes a channel in which a pumping gas is forced under pressure into a cavity where bubbles are formed. The cavity is in contact with a reservoir which contains the molten metal or other fluid which is to be pumped. The bubbles rise up into a column (or pump tube) carrying the fluid with them. At the top of the column is located a deflector which causes the bubbles to burst and the drops of pumped fluid to fall into a trap. The fluid accumulates in the trap, eventually forcing its way to an outlet.

Abstract: A rotary/reciprocating liquid dispensing pump for dispensing liquids in the nanoliter range has a narrow radial slot extending longitudinally from an end of a reciprocating, rotating cylindrical piston sliding in a smooth cylindrical bore of a pump housing at a closed end thereof, which slot extends outwardly to the periphery of the piston. The piston is selectively positioned in alignment with one of a plurality of circumferentially spaced small diameter radial passages within the housing opening directly to the cylindrical bore in the path of rotation of said slot. The ports thereof opening to the cylindrical bore are spaced circumferentially a distance in excess of the width of the slot. A linear liquid dispensing pump apparatus including such pump includes a stepping motor and an electromagnetic clutch/braking mechanism concentrically surrounding a lead screw, and the lead screw is threadably engaged with a stepping motor tubular rotor shaft.

Abstract: A method for assembling a motor driven fluid compressor having a compression mechanism, such as a scroll type fluid compression mechanism and a drive mechanism which are contained within a hermetically sealed housing is disclosed. The compression mechanism includes a fixed and orbiting scrolls. The drive mechanism includes a drive shaft and a motor rotating the drive shaft. The housing is divided into a first and second cup-shaped portions and a cylindrical portion. An opening end of the first cup-shaped portion is releasably and hermetically connected to one opening end of the cylindrical portion. An opening end of the second cup-shaped portion is releasably and hermetically connected to another opening end of the cylindrical portion. A first, second and third sub-assemblies are separately prepared, and then are assembled into the compressor. The first sub-assembly is formed by the first cup-shaped portion and at least one internal component part of the compressor.

Abstract: An apparatus for reducing the pressure pulse amplitudes in the discharge piping of a screw compressor. A stub pipe is added to the compressor discharge piping. By tuning the stub pipe dimensions, the reflected pulse from the stub pipe is combined with the reflected pulse from the discharge piping so that the pulse arriving back at the discharge of the compressor is out of phase with the compressor discharge pulse, reducing the pulse amplitude in the pipe.

Abstract: A pump gear for force-feeding of a non-Newtonian fluid has a pair of gears with intermeshing teeth, each flanked by members such as bearings with inner surfaces opposite to its side surfaces. The gaps that are formed between the side surfaces of the gears and the inner surfaces of the flanking members are tapered such that their width increases radially, making the speed of fluid flow substantially uniform throughout inside the gaps.

Abstract: An auxiliary support (1) for a road vehicle tire (2), which support (1) is defined by a tubular drum (3) fitted in a fluidtight manner with the interior of a finished tire (2) for mutually locking the bead portions (22) of the tire (2) in a fixed position when the tire is pressurized, and constituting a carriage whereby the pressurized tire (2) is transferred along a post-inflation route (8) subsequent to curing.

Abstract: Two movable die members that are situated opposed to each other in an extrusion die assembly, the axis of movement of the two die members is parallel to the longer sides of the rectangular cross-section of a throat opening of the extrusion die assembly. The members move in a reciprocating back and forward movement to impart shearing forces to the surface of the extruded material with a resultant multiaxial orientation of the molecules or fibrils.

Abstract: A device for forming blisters in which a web material including a thermoplastic resin that is supplied to a rotary forming drum is heated and deformed by heat in accordance with the configuration of cavities provided on the rotary forming drum. A predetermined tension in the range of 5 kg/215 mm to 50 kg/215 mm is applied to the web material while feeding it. When the rotary forming drum consists of a polygonal drum, each peripheral surface of the drum is formed as a curved surface extending along an arc whose radius is larger than that of the circumscribed circle of the polygon. This invention can be used in a packing device for foods, drugs, etc.

Abstract: An apparatus is reported for shaping an end of a solid cosmetic stick such as a deodorant or antiperspirant. The apparatus operates through a method that includes the steps of filling a package body with a molten cosmetic composition, solidifying the composition into stick form, heating a mold or package cap, elevating the stick to extend the package body opening, and contacting an end portion of the stick with the heated die or cap. A pattern such as a trademark or logo may be molded through this process onto the end portion of the stick.

Abstract: A hot runner nozzle (10) with lateral electrode terminals (28) has a broad flanged body (18) that continues as a thermally graded narrower shaft (20) through which a heatable flow tube (22) extends. Into its high-strength foot portion (38), at least one nozzle tip (50, 50') is insertable; a high-strength heat-conductive envelope tube (30) having a re-entrant outer shoulder (34) adjacent the casing (12) is joined to a separating sleeve (36) of the shaft (20). The lower end of a heating tube (26) is thermoconductively connected to a metal bush (40) whose upper portion is thermally insulated by air gaps (54, 44) from both the separating sleeve (36) and the heating tube (26). A supporting ring (56) of low heat conduction is mounted between axial faces of the heat-conductive bush (40) and the separating sleeve (36). The nozzle tips (50, 50') are form-fitted or welded to the foot portion (38) at an angle between 0.degree. and 90.degree. relative to the axis (A) of the shaft (20).

Abstract: A heated injection molding nozzle having a cylindrical locating flange extending forwardly from a rear collar portion to mount the nozzle in a well in a cooled mold. The nozzle has a cylindrical central portion with an insulative air space extending between it and the surrounding cooled mold. A hollow thermocouple tube extends through the rear collar portion and along the inner surface of the locating flange to removably receive a thermocouple element which extends from the rear end of the nozzle and through the insulative air space to monitor the operating temperature near the forward end of the nozzle. In the event of pressurized melt escaping to fill the air space, contact of the thermocouple tube with the locating flange cools the melt which flows into the thermocouple tube sufficiently to freeze it and prevent leakage out amongst the wiring in other parts of the mold.

Abstract: A slide retainer for an injection mold tool with positive locking, recessed mounting, and guide bar capabilities. The retainer includes a track channel insert rigidly mounted in the base plate of an injection mold tool and a cooperating cylindrical insert mounted for rotational movement in the slide. The channel insert may be extended outwardly from the base plate to serve secondarily as the slide guide bar. The cylindrical insert includes an eccentrically mounted track pin and a torsional spring thereby biasing the track pin for rotation movement. The channel insert includes a circumferential heart-shaped channel that defines an island in the middle thereof. The track pin extends into the channel and traverses the circumferential path once during each mold cycle. A unidirection flapper gate is provided to route the pin through the channel in the proper direction. Slide retention and locking are achieved when the track pin is oriented in the indented portion at the top of the heart-shaped channel.

Abstract: Gas burner comprising a gas distribution chamber (3) fed with combustive air and combustible gas and communicating with a combustion chamber (15) through a main flame stabilization grille (11) having a lacunar structure, porous to the air/gas mixture. Preferably, the means (23) for ignition of the burner will be disposed outside the distribution chamber but will pass through the grille (11), the ignition being carried out either from one side of this grille, or from its periphery.

Abstract: A contaminant trap for a high temperature, vertical furnace of the type used in semiconductor fabrication processing. The trap is designed to reduce particulate deposition within the process chamber, thereby decreasing the likelihood of by-product contamination of the wafers. The trap includes a housing having at least one sidewall, a bottom wall and a top wall which together define an inner compartment. The housing is attached to the exhaust port of the process chamber such that exhaust by-products in the process chamber may not be evacuated through the exhaust port around the housing. The housing has an input opening in the sidewall through which exhaust by-products pass from the process chamber into the inner compartment. An output opening extends through the sidewall near the top wall through which exhaust by-products are subsequently removed from the interior compartment of the housing.