Abstract: There is provided a roller for inserting filler material to the proper depth in crevices comprising a circular structure having a central circular section of at least 1/16" of an inch thick but less than 1/4 of an inch thick, a first and second truncated right angle cone sections of a smaller diameter than said central circular section and appended on each side of said central circular section at its base line to which is attached a third or fourth circular section of uniform thickness appended to the truncated side of said conical section. The circular structure is supported on a shaft which shaft is supported by two-support members which are connected to a base plate which may be attached to a handle. This construction allows the worker to grasp the handle and utilizing said circular structure which is free to rotate on said shaft such that the leading edge of said central circular section can be utilized to force filler material to the proper depth in a crevice.

Abstract: In tuned rubber/viscous torsional vibration damper assemblies of the kind having supporting rotor disk means mounting an inertia mass coupled to the disk means by viscous damping medium and elastic tuning spring, spacing and sealing rubber rings are produced by providing a low melting point metal barrier in the assembly between rubber ring accommodating grooves and the viscous damping medium working chamber defined within the inertia mass, the rubber rings molded and vulcanized in situ in said grooves and to the rotor disk and the inertia mass, whereafter the barrier is melted out and the damper completed. The dampers may be provided with rubber spacer and bumper fingers extending from the rubber rings into the working chamber of the damper. The rubber rings may also be keyed to the inertia mass by means of integral lugs extending into socket apertures in the inertia mass. The dampers may be coated with a rubber skin on outside areas, the skin being connected to exposed areas of the rubber rings.

Abstract: Articles and a method are disclosed useful for providing a lift insert for a cast concrete product, such as a cast concrete slab or panel. The articles include a threadless plug for temporary insertion into an insert for receiving a lifting device in a cast concrete product, an insertion tool therefor, and the insert assembly. The threadless plug is characterized by an elastomeric tubular member having closure and/or abutment means on each end and dimensioned such that, in its operative position in the lift insert, such as a coil insert, the portion of the tubular member between the ends is placed in tension to positively seal against ingress of concrete into the top of the coil or insert and between the void plug and the coil during casting.

Abstract: Multiple wall drill pipe adapted for use in a drill pipe string comprising an outer pipe member; an inner pipe member disposed within the outer pipe member; and means for releasably connecting the inner pipe member and the outer pipe member in fixed axial relationship under force loads applied in use during a drilling operation while enabling relative rotary movement between the inner pipe member and the outer pipe member during a rotary drilling operation to relieve torsional stress thereon, and for permitting the removal of the inner pipe member from the outer pipe member by relative axial displacement therebetween caused by application to the inner pipe member of only an axially directed force load in excess of the axially directed force loads applied to the inner pipe member in use during a normal drilling operation.

Abstract: A disc brake boot seal 10 (and method for assembling a disc brake system) that is molded in its extended condition and that when moved into its collapsed condition will remain in its collapsed condition. The boot seal comprises a molded elastomeric sleeve 12 having a plurality of different wall portions 20-34 certain ones of which interact to releasably hold the sleeve in its collapsed condition so that it does not self-extend. The expense and high mold breakage resulting from the prior art system of molding a seal in its collapsed, convoluted condition are eliminated by this invention.

Abstract: The conduit structure comprises an outer tubular housing having a tubular inner member disposed therein with a first end of the inner member being positioned in the medial portion of the outer housing and retained therein by means of an outwardly extending flared portion on the first end of the tubular inner member which is constrained between two longitudinally spaced inwardly extending annular projections formed on the inner surface of the outer housing. A resilient annular seal is provided between the outer surface of the tubular inner member and the inner surface of the medial portion of the outer housing. The tubular inner member extends from one end of the outer housing and a second resilient annular seal is provided between the tubular member and said end of the outer housing. The tubular inner member is adapted for longitudinal, radial and rotational movement relative to the outer housing.

Abstract: A device for introducing an anti-microphony sponge into an air-cored coil for television channel selectors comprising an axially displaceable hollow mandrel with an end portion which comprises two diametrically oppositely situated slots. Two blocking members can be introduced into the slots, after which cutting means are displaceable in a direction transversely of the axis of the mandrel. After the introduction of a length of spongy material into the mandrel, an air-cored coil is arranged on the end portion of the mandrel, after which the blocking means are moved into the slots so that the length of spongy material is clamped on both sides of the air-cored coil. Subsequently, the mandrel is withdrawn from the coil and the length of spongy material is cut in the zone between the blocking means and the withdrawn mandrel, a piece of spongy material then being left behind in the air-cored coil.

Abstract: The stabilizer, in a preferred embodiment thereof, comprises a generally tubular body which is axially slit, as in the prior art. According to one practice of the invention, the surfaces of the body immediately adjacent to the slit have ribs formed thereon which define bearing surfaces for clamping together, to draw the surfaces into proximity, narrowing the slit, thereby to contract the stabilizer to a constrained dimension approximately eight percent smaller than its free dimension. This is done to facilitate its insertion into an undersized bore. The novel method, then, in an embodiment thereof, comprises contracting an axially slit friction rock stabilizer by engaging the aforesaid ribs (formed thereon) with a tool, to contract the stabilizer to a reduced and constrained, approximately eight percent smaller, cross-sectional dimension, inserting the stabilizer into an undersized bore, and withdrawing the tool.

Abstract: A method of and apparatus for attaching a connecting piece to objects to connect these objects to each other. The connecting pieces each having a filament portion, a head portion attached to one end of the filament portion and a cross-bar portion attached to the other end, are successively severed one by one by the attaching device from a continuous belt of connecting pieces formed integrally from a plastic and having a connecting rod to which the connecting pieces arranged in side-by-side relation are connected through respective connecting portions, and are then attached to the objects to connect them to each other. The improvement resides in a technic which ensures to correctly position the connecting piece to be severed to the severing position even when the connecting pieces in the connecting piece belt are disposed at an irregular pitch.

Abstract: An apparatus for feeding a flexible elongate member, e.g. pile weatherstrip, into a groove in an elongated member, the apparatus being capable of being driven by an electric motor or drill and including a pair of rollers defining a nip through which the pile is driven into an outlet guide with which the groove in the elongated member is aligned at the downstream end thereof. It is preferred that two sets of roller nips are provided, there being a common roller for each nip and there being an inlet guide to direct the pile weatherstrip into a first nip, and an intermediate guide to direct the weatherstrip from the first nip to the second nip and hence into the outlet guide. Preferably, the roller common to each pair is driven via a toothed belt, and the other two rollers can be moved towards or away from said common roller. Preferably, this roller has a grooved periphery to receive the pile of the weatherstrip and all the rollers are knurled.

Abstract: Methods for inserting a bundle of hollow fiber membranes into a permeator shell are provided which methods present minimal risk of damage to the hollow fiber membranes and enable high packing factors of hollow fiber membranes within the permeator shell to be achieved. In the methods, a bundle of hollow fiber membranes is surrounded by a substantially fluid impermeable, flexible envelope. The interior of the envelope is provided at a lower total pressure than the pressure at the exterior of the envelope such that the flexible envelope is drawn into contact with the bundle and laterally compacts the bundle. The envelope containing the bundle is inserted into a permeator shell while maintaining the pressure differential. The flexible envelope may be retained within or may be withdrawn from the permeator shell.

Abstract: Apparatus for the preparation of hollow plastic articles wherein a more rapid operating cycle is obtained with less effect upon the temperature of the parison. The apparatus includes a first core, means for providing a parison thereon, a temperature controlled first mold engageable with said first core and parison, means for separating the first core from the first mold and parison contained therein, a second core in spaced relationship to the first core, means for transferring the parison to the second core, a blow mold in spaced relationship to said first mold for fully expanding the parison and means for transferring the second core and parison to the blow mold, wherein the blow mold is stationary and the second core with parison thereon is brought into alignment with the blow mold and is inserted therein.

Abstract: A sealing ring is installed in a groove chamber of a socket by impressing said sealing ring and pushing the impressed sealing ring into the socket, whereafter the impression is terminated and the sealing ring is received in a groove chamber.An apparatus for carrying out the method comprises a sealing ring impression member and sealing ring retaining means for maintaining the sealing ring in the impressed state.

Abstract: A method for connecting a sewer pipe to a larger pipe or manhole wherein the connection between the pipe and manhole opening is sealed by means of an elastomeric gasket or boot. A rigid ring is inserted within one end of an elastomeric boot, which has an outer diameter slightly larger than the inner diameter of the opening in the manhole. The boot is inserted into the opening up to the enlarged end, a jacking device is inserted through the gasket, and a circular, stepped plate is connected to the end of the jacking device which has been inserted through the gasket so that it is positioned to engage the end of the gasket assembly having the ring inserted therein. The jacking device includes a spider element which is braced against the outer wall of the manhole, and the device is operated such that the plate is drawn toward the spider thereby pulling the gasket and ring into the opening wherein the gasket is compressed between the opening and the rigid ring so that a compressive water-tight seal is achieved.

Abstract: The specification discloses an oven with an outer oven body and an inner oven liner disposed within the body in a spaced apart relationship to provide a space between the body and the liner. Both the body and the liner include open ends facing in the same direction. A removable panel is attached to cover the space between the liner and body. A flexible gasket is clamped between the liner open end and the panel for providing support for the liner and for engaging the oven door to form a seal between the door and the liner.

Abstract: The applicator includes a plastic disc having a central hole therein. Integral with the disc and extending from the upper side thereof is a tubular handle, the bore of the handle being in alignment or registry with the hole in the plastic disc. By means of the handle the disc can be rotatively oscillated against the uppermost paper filter of a stack of such filters so as to induce electrostatic charges thereon with the consequence that the filter clings to the lower side of the disc. The disc is slightly smaller in diameter than the diameter of the paper filters to be transferred, and the peripheral diameter of the paper filters is slightly greater than the diameter of the coffee maker basket. In this way, when the plastic disc and the filter being electrostatically carried thereby is inserted into the coffee maker basket, the peripheral edge of the filter is deflected upwardly, the frictional engagement causing the filter to remain in the basket when the plastic disc is retracted.

Abstract: A method of stuffing an aerated expanded flexible filler into a snug fitting cover, wherein air is evacuated from the filler while resting upon a support so as to shrink the filler and permit rapid application of the cover thereto. The apparatus includes a cantilevered chambered support with multiple openings in its filler supporting surface and selectively operable means for withdrawing air from the chamber and an air impervious sheet draped over the filler and the support.

Abstract: Apparatus and a method for securing capillary tubes and other small diameter components within a refrigeration machine. A capillary plug button having a retainer plate in which various small diameter components may be secured has extending therefrom a pair of fastening legs. The fastening legs are inserted through an opening within an internal wall of the refrigeration machine such that projections on the legs contact one side of the wall and the retainer plate contacts the opposite side of the wall thereby securing the plug button within the opening and securing the small diameter components within the retainer plate. The retainer plate has a slot connecting the edge of the plate to a plurality of apertures thereby allowing the plug button to be spread apart such that the components may be inserted into the apertures of the retainer plate.

Abstract: The stabilizer, according to a preferred embodiment thereof, comprises a generally tubular body which is axially slit, according to the prior art. According to the invention, the surfaces of the body immediately adjacent to the slit have ribs formed thereon which define bearing surfaces for clamping together, to draw the surfaces together, closing the slit, and thereby contract the stabilizer to facilitate its insertion into an undersized bore. The novel method, then, comprises contracting an axially slit friction rock stabilizer by engaging the aforesaid ribs (formed thereon) with a tool, to contract the stabilizer to a reduced and constrained cross-sectional dimension, inserting the stabilizer into an undersized bore, and releasing it therein, in order that it may engage and stabilize the surface of the bore (of the earth structure).

Abstract: This invention provides a method of and an apparatus for fitting and removing a so-called unpuncturable inner tube with respect to a corresponding pneumatic tire. The inner tube is elongated and disposed in front of the tire held in a vertical position, and the lower front portion of the tube is introduced into the lower portion of the tire. The apparatus comprises a gantry-like frame structure for holding the tire vertically, and a movable carriage extending at right angles to the gantry and supporting a tiltable device comprising essentially two arms pivotally interconnected and adapted to elongate the inner tube. Removal of the inner tube is also feasible due to the provision of means for partially crushing the tire containing the inner tube until one portion of the tube projects into the central aperture of the tire from which it is then expelled by a push arm extension adapted to be fitted to the upper one of the pair of extension arms.

Abstract: A method of stuffing an aerated expanded flexible filler into a snug fitting cover, wherein air is evacuated from the filler while resting upon a support so as to shrink the filler and permit rapid application of the cover thereto. The apparatus includes a cantilevered chambered support with multiple openings in its filler supporting surface and selectively operable means for withdrawing air from the chamber.

Abstract: A procedure is disclosed whereby a vehicle which has been manufactured with a top which is of unitary construction with the body of the vehicle may be converted to a vehicle having a removable top. Also disclosed are sealing and mounting devices for securing and sealing the removable top to the body of the vehicle.

Abstract: An improved connector is disclosed for interconnecting a plurality of fiber optic cables with a like plurality of fiber optic cables or optical devices, the fibers of the cables being accurately positioned within the respective connectors. The subject connector can be used for either splicing or terminating individual cables, each cable including at least one fiber, as well as connecting a plurality of light transmitting fiber bundles in a single connector assembly to transmitting and receiving devices. The subject connector includes a housing with at least one cable receiving bore therein; an assembly including an annular crimping ring, a profiled ferrule member, and a helical spring member secured to an end of each cable; and a cap member securing the ferrule members in the housing member in a spring loaded condition.

Abstract: A method for pressurizing an aerosol dispensing system with propellant in which a flexible inner container is inserted within a rigid outer container. The mouth opening of the inner container, having flexible means thereon, extends outwardly through the neck opening of the outer container with the flexible means supported by the neck opening. A dispensing cap is moved into engagement with the flexible means and the dispensing cap and flexible means are moved away from the neck opening while propellant is then injected through the neck opening into the region between the inner and outer containers. The dispensing cap is moved into the neck opening and crimped into engagement therewith to fix the position of the flexible means and inner container while maintaining a space between the neck opening and a portion of the exterior surface of the dispensing cap during crimping.

Abstract: The method permits mass-producing axially retained tripod joints having high rigidity and a given prestressing force which is reproducible from one joint to another. According to this method, after having clipped a resiliently yieldable attachment onto a tulip-shaped element of the joint while the joint is in its assembled position, the value of the gap between the shoulder of a thrust member and a bearing surface of a hub carrying the trunnions is determined for the position of the joint in which the hub and tulip-shaped member are in alignment and the thrust member is axially shifted away from the hub and there is introduced in the gap produced between the thrust member and the hub a shim the thickness of which is chosen to be slightly larger than the gap.

Abstract: A tool comprising a receptacle having a cylindrical portion defining a space therewithin adapted to receive a resilient seal after deformation of the latter by an external member is disclosed. A movable member carried by said receptacle comprises a tubular portion slidably received on the cylindrical portion and movable from a first position in which said tubular portion is opposite the space towards a second position in which said tubular portion is offset relative to the space against the action of a first spring. The tubular member is provided with an aperture adapted to receive the external member, and an element is slidably carried in said space and resiliently urged away from the latter by a pair of second springs, thereby expulsing the seal in a corresponding groove when the tubular member is moved towards its second position.

Abstract: A gasket holder clip and method for using the clip to attach a gasket through holes in an underlying flange or the like to maintain alignment of the gasket holes and flange holes. The gasket holder clip is constructed of spring steel wire or other material of high degree of elasticity and rigidity and has a substantially V-shaped configuration with legs of the V-shaped structure having short outwardly turned arms. The clip is employed to hold a gasket having a plurality of holes against an underlying flange, as in an oil pan flange, having holes for registry with the gasket holes by inserting the clip with the legs pressed together through the bottom of the flange hole up and through the gasket hole and then releasing the pressure against the legs of the clip and drawing it down to engage the arms against the top surface of the gasket. The clip maintains the gasket against the flange by the bearing and biasing action of the legs of the clip against the interior walls of the flange hole.

Abstract: This invention relates to a method of placing an elastomeric annular piston seal beyond an irregularity in the wall of a bore without damaging the seal and also to apparatus having a piston seal so placed. The seal is fitted onto a smaller diameter portion of the piston than that on which the seal operates so that when the piston is inserted into the bore, the seal moves freely past and is placed beyond the irregularity. When the seal is beyond the irregularity it is moved from the smaller diameter portion onto its operable position by relative movement of the piston past an abutment which is encountered by the seal.Such a method of assembly is particularly useful for motor vehicle brake master cylinder failure warning switch assemblies.

Abstract: A method of forming a valve seat having a resilient plastic insert received in a serrated groove of the seat. The insert is inserted into the groove and is pressed therein with a power driven ram to effect cold flowing of the insert into serrations in the sides of the groove. The insert is then subjected to hydraulic fluid at a relatively high pressure level to completely bottom the insert against the bottom of the groove prior to machining of a protruding sealing surface of the insert. The invention is directed additionally to another method which includes the step of swaging a lip into the insert to secure it in a non-serrated groove of a valve seat. Hydraulic fluid pressure is then applied to the insert to completely bottom it in the groove prior to installation of the seat in a valve body.

Abstract: The invention permits the lining of a passageway or pipeline with a resilient but robust, semi-rigid plastics pipe. The invention enables the lining of pipelines and passageways of long length by extruding the lining tube on site, deflecting the tube so that it is deflected into smaller diametral size, holding the tube in the deflected condition, feeding the deflected and held tube into the passageway to be lined, and releasing the hold on the tube so that it deflects or is deflected back to its original form and lines the pipeline or passageway.

Abstract: There is provided a tubular connector or the like comprising a socket like means and an annular elastic sealing member to be fitted into the socket in pressing contact with the inner peripheral surface thereof. To assist in the assembly of the sealing member internally of said socket the socket and sealing member is each provided with a plurality of marks spaced apart circumferentially thereof in corresponding relation to the other. The sealing member is fitted into the socket by inserting the sealing member into the socket with the marks on the sealing member set to the corresponding marks on the socket and pressing any slack portions or depressed portions of the member against the socket radially inwardly peripheral surface, whereby the sealing member is secured in uniform pressing contact with the said socket inner surface over the entire outer periphery of the sealing member.

Abstract: The device facilitates inserting a rigid liner in a helmet shell which has an opening narrower than the liner and prevents damaging scratches on the shells interior finish. The device has a bowl-shaped based to hold the helmet shell in an inverted position beneath a hinged frame from which hangs one or more slip sheets. The slip sheets are made of smooth, flexible material which hangs from the frame to form a partial, temporary lining of the helmet. The rigid liner is shoved down into position within the helmet shell while the slip sheets act similarly to a shoehorn permitting the liner to slip into place without damaging the inside surface of the shell. The frame, including the assembled helmet, is then raised to an upper position and latched. The assembled helmet is then pulled forward freeing it from the slip sheets which remain attached to the frame ready to use in the next assembly.

Abstract: Disclosed is a process and apparatus for assemblying spiral wound gaskets into gauge rings. The process comprises exerting inwardly directed radial forces on the exterior of the spiral wound gasket, causing it to decrease in diameter sufficiently to slip into the gauge ring. The apparatus comprises a holder having a tapered opening and a mandrel which is adapted to engage the periphery of the gasket. As the mandrel with the gasket in place is pushed downwardly through the tapered opening, the mandrel's diameter is decreased and consequently the outer diameter of the spiral gasket is decreased. Means is provided to hold the gauge ring in position immediately adjacent the minor diameter end of the tapered opening in the holder, whereby as the mandrel pushes the gasket out of the minor diameter end it is immediately placed in the hole in the gauge ring where the forces are then released. The gasket is then free to expand outwardly to a tight fit into the gauge ring.

Abstract: A method for connecting a sewer pipe to a larger pipe or manhole wherein the connection between the pipe and manhole opening is sealed by means of an elastomeric gasket or boot. In one embodiment of the invention, the pipe is inserted into the manhole opening and an annular elastomeric gasket is positioned over the annular space between the pipe and opening. An extensible jack, which has an annular plunger element having a diameter substantially equal to that of the gasket, is braced against the wall of the manhole opposite the opening and extended so as to press the gasket between the opening and pipe. In an alternative embodiment, a rigid ring is inserted within one end of an elastomeric boot such that the outer diameter of the boot-ring assembly is slightly larger than the inner diameter of the opening. The boot is inserted into the opening up to the enlarged end, the jack is braced against the opposite wall of the manhole and extended thereby pressing the gasket and ring into the opening.

Abstract: End caps are pressed into the opposite ends of cores of wound rolls of paper, such as toilet tissue, paper towels and the like, by transferring end caps in succession from a rotating drum feeder located at each side of the path of movement along which the rolls are moved to end cap holders mounted to move in an endless course at each side of the roll path wherein each holder picks up an end cap from its adjacent feeder and moves it in synchronism with movement of the rolls along the roll path. The endless course of the end cap holders at each side of the roll path has a portion thereof which travels along a line that approaches the center line of the roll path so that the end cap holders each press an end cap into an end of the roll core and release the cap to the roll.

Abstract: Disclosed is a sulfur-cured rubber article that has high resistance to reversion and low compression set which is post-modified to improve its fatigue life. The method involves introducing additional elemental sulfur in solution into the low sulfur-cured rubber article subsequent to curing.

Abstract: Gaps or seams between adjacent modular refractory fiber blanket insulation modules are filled by inserting therein strips of refractory fiber blanket. The strips are bent into a U-shape over a blade or plate and then inserted between two spreader members, called lubricators, to overcome the tendency of the blanket in the strip to adhere to the blanket in the module.

Abstract: An apparatus for winding a first generally planar sheet material into a tubular configuration and thereafter winding a second generally planar strip of material over a portion of the first material and thereafter inserting said first and second materials into a transparent or translucent barrel of a pen or mechanical pencil so that at least a portion of said first and second materials or any indicia carried thereon are displayed through the barrel.

Abstract: A tire sun shield for use upon a load supporting wheel of a parked vehicle is formed from a one-piece member having a front face of a diameter generally corresponding to that of the tire to be shielded and an integral axially extending skirt joined to the front face along its outer periphery. The lower portion of the shield is cut away across a chord of the front face and through the skirt, forming opposed axially extending gripping edges on the skirt which are spaced from each other by a distance slightly less than that of a normal "load flat" of the tire when the tire is supporting a normal load. After the load on the tire is removed to permit the shield to be placed over the front face of the tire and then is reapplied, the gripping edges on the skirt bite into the tire at the opposite ends of the load flat to firmly retain the shield in position on the wheel, and inhibit its removal by wind force or for purposes of theft.

Abstract: A method for bonding a tubular shaft to an end fitting to produce an assembly wherein the shaft and the end fitting are in axial alignment and which is capable of transmitting high torque, said method employing an end fitting provided with a mating section having two concentric cylindrical walls which describe an annular cavity or socket adapted to receive the tubular shaft therein. The high torque carrying capacity of the joint produced in accordance with the invention results from the fact that the shaft is bonded to the mating section of the end fitting on both its interior and exterior surfaces and is in axial alignment with the end fitting. Such axial alignment results from the presence of a resilient sealing ring and an annular shoulder, positioned near the top and base of the inner cylindrical wall of the mating section, which contact the inner surface of the tubular shaft and center the shaft around said wall when the shaft is inserted into the bonding socket of the end fitting.

Abstract: An assembly for use in a condition responsive mechanism. The assembly includes a housing part having aperture means therethrough and a control device rotatably assembled at least in part in the aperture means for selecting a set temperature of the condition responsive mechanism. The housing part has a pair of sections extending generally about at least a part of the aperture means and predeterminately spaced in off-set relation with respect to each other. The control device has a body portion formed of a generally resilient resin material and includes groove means extending thereabout for receiving in rotatable abutment the off-set sections. The groove means defines with the body portion at least one flange thereon with the flange being displaced in response to the rotatable abutment of the groove means and off-set sections so as to resile and exert a force acting to maintain the rotatable abutment between the groove means and the off-set sections.A method of assembly is also disclosed.

Abstract: A mixture of shredded polyurethane foam pieces and pieces of polyester matting is placed in a bag formed of polyester matting which is in turn placed in a cover formed of upholstery material to provide a soft, resilient seat cushion.

Abstract: A device for fitting an elastic ring such as a piston seal, O-ring or the like into an inner circumferential groove of an article such as a hydraulic cylinder or the like. The device comprises a support supporting the article, a tubular retaining member having an inner circumferential groove, means supplying the elastic ring transversely into the groove of the retaining member through a cut-out portion formed in the retaining member, a chucking member adapted to be inserted into the retaining member and into the article for receiving the elastic ring from the retaining member and delivering the elastic ring into the article, means for deforming elastically at least a portion of the elastic ring radially inwardly in delivering the elastic ring from the retaining member to the chucking member, and a clamping mechanism provided on the chucking member for clamping the elastically deformed ring in translating the chucking member from the retaining member to the article.

Abstract: A pressure transducer comprises a series-connected helical coil spring and bellows assembled into the bore of a housing by anchoring the spring and bellows at locations which place them in a state of tension. Expansion and contraction of the bellows reacts against the spring and correspondingly positions a ferrite slug within an inductance coil to cause the inductance thereof to be a function of the pressure differential acting on the bellows. One end of the coil spring is threaded onto a threaded fitting secured to one end of the bellows, and slope calibration of the transducer is accomplished by setting the amount of engagement of the spring with the threaded fitting. Offset calibration can be performed by either of two disclosed techniques, and the offset and slope calibrations can be independently made.

Abstract: A can for housing and dispensing liquid or pasty masses under pressure, comprising a substantially dimensionally stable, pressure-tight outer container having an opening edge upon which there is sealingly secured a valve plate equipped with a dispensing valve. An at least partially deformable inner container includes a neck portion whose opening edge is sealingly secured at the valve plate or at the part of the dispensing valve protruding into the interior of the can.

Abstract: Three pressure elements are employed in reducing the transverse area circumscribed by the outer periphery of a resilient ring type seal to permit its placement in a groove formed in a bore which is smaller in circumference than the outer periphery of the seal. One pressure element is applied to the outer periphery of the seal, and two to its inner periphery at points which are spaced equally on either side of a line which extends from the center of the seal through the outer pressure element. The two inner pressure elements are then rotated outwardly in opposite directions around the outer pressure element to fold a portion of the seal inwardly on itself around the outer pressure element, thereby reducing the transverse area circumscribed by the outer periphery of the seal. While so reduced, the seal is placed within the bore opposite the groove, and the outer pressure element then drawn axially out of engagement with the outer periphery of the seal to permit its expansion into the groove.

Abstract: A support and a process for preparing the support are disclosed. The support includes a metal pipe having two ends, a pair of plugs and a covering tube. The plugs are positioned in each end of the metal pipe and are formed from a thermoplastic resin. The plugs each include an outer portion having an outside diameter that is equal to the outside diameter of the metal pipe. The covering tube is formed from a thermoplastic resin that is compatible with the thermoplastic resin forming the plugs. The covering tube covers and closely contacts the entire outer surface of both the metal pipe and the outer portions of the plugs.

Abstract: An apparatus for simultaneously forming generally flat sheet material having indicia thereon into a tubular shape and inserting the sheet material into the transparent or translucent barrel of a pen or mechanical pencil in such a manner that the indicia carried on the sheet is visibly displayed through the wall of the barrel.

Abstract: A lining comprising a resin absorbent tube having on the outside a fluid impermeable membrane everted into the passageway to line same using fluid pressure. The resin absorbent material is soaked in resin by trapping a quantity of resin in the lining before it everts in the passageway, and the resin is cured after the lining is everted into the passageway surface, preferably by a curing means following the everting lining along the inside of the passageway.

Abstract: This invention relates to an improvement in a sheathed, hollow, cylindrical stick composed of a flexible tube folded by longitudinal shirring, the improvement comprising a cylindrical, flexible jacket means enveloping said stick and projecting over the ends thereof, parts of the projecting portions touching end walls of said stick with their inner sides, annular disc means on said projecting portions, and said projecting portions being inverted outwardly around said disc means in a manner such that the inner walls, the end surfaces and the outer walls of said disc means are tightly covered, and said inverted portions being parallel to said jacket means and close to the exterior thereof. The invention also includes an embodiment wherein annular disc means are inserted inside the jacket means and adjacent to the end walls of the stick, the projecting portions of the jacket means are inverted around the annular disc means and clamping means are inserted in the opening of the annular disc means.