Abstract: A device for automatically welding a tube onto a pipe of larger diameter is the subject of the present invention. Tack welding is achieved by two welding torches located on opposite sides of the tube and spaced apart longitudinally a distance equal to the distance desired between tack welds. The entire torch assembly is mounted on a movable carriage that is motor driven. A frictional spool wheel engages the tube to drive the carriage while also serving as a guide wheel. Two cam wheels are also driven by the same motor that drives the carriage. One cam wheel controls operation of the welding torches on an intermittent basis. The second cam wheel controls the drive motor so that the latter is operated at a first speed during welding and a faster speed when welding in interrupted. This allows the device to traverse a given distance in less than half the time that would be required if the slower welding speed were maintained throughout the entire length of the tube.

Abstract: Corrugated pipe is bent by pinching the spiral corrugations on one side of the pipe to decrease their pitch and increase their amplitude as compared to the undeformed corrugations on the opposite side of the pipe, thereby shortening the pipe on one side. A machine for effecting deformation of the corrugations includes inner and outer clamp mechanisms which provide an inner spiral rib extending partially around the inside of the pipe and a pair of outer spiral ribs extending partially around the outside of the pipe. The clamps include hinged together clamp sections which are pivoted by hydraulic cylinders between a pipe engaging position for bending the pipe and a release position permitting advancement of the pipe. The cylinders drive the outer ribs toward one another as well as inwardly into grooves of the corrugations where their force is opposed by the inner rib which acts against the inside pipe surface at a ridge of the corrugation.

Abstract: A binocular device wherein the two ocular lenses may be quickly focused entirely independently of one another. Rocker bars located between the bodies of the telescopes may be pivoted by the fingers to focus the respective lenses while the binocular device is held to the eyes in the normal manner. A rack and pinion mechanism for each rocker bar engages a slide pin which is connected with the ocular lens housing in order to move the lens housing toward and away from the corresponding objective lens as the rocker bar is pivoted in opposite directions.

Abstract: An embossed article such as a plastic bowl is injection molded between the molding surfaces of an unidirectional mold. The outer molding surface is inclined outwardly from bottom to top and is provided with an engraved area in which the boss is formed. The undercut upper edge of the engraved area is slanted in a manner to provide an inclined lead in surface on the boss. The undercut of the lead in surface is slight enough that the boss is able to release from the engraved area without damage as the mold opens in unidirectional fashion for removal of the molded article.

Abstract: A device for cutting a pill in half is the subject of the present invention. A base member is provided with movable retaining plates to accommodate different size pills and is also slotted to allow a blade to pass through the pill without contacting the base member. The blade is held in a normally raised position by a return spring which is yieldable to accommodate downward movement of the blade. The blade moves in a vertical plane normal to the plane of the base to assure a positive cutting action. After the pill is cut the spring returns the blade to its raised position.

Abstract: An intra-oral orthodontic spring appliance is provided which consists of a metallic coil spring having an enlarged tension releasable means at one end which engages fixed spring mounting means in the mouth and a tail at the other end which engages suitable means on a tooth to be repositioned. Preferably, the enlarged tension releasable means is an open coil spring formed over a portion of a closed coil spring. When the closed coil spring is passed through a fixed spring mounting means, e.g., a buccal tube, and attached to a tooth to be repositioned, the retractive force is provided by compression of the open coil spring and expansion of the closed coil spring.

Abstract: This invention discloses a magnetic stripe card reader/writer apparatus comprising a card reader/writer device and a basic interface circuit. The recording head of the card reader/writer device is mounted on the end of a sensor arm and is driven over the magnetic stripe in an arcuate path by a head drive motor. The card reader/writer device includes a unique card locking mechanism which allows insertion of the card in only one manner and locks the card in place before initiating the reading or writing operation of the device. The interface circuit controls the forward and reverse motion of the head drive motor, converts magnetic data previously recorded on the card into digital information and records digital information onto the magnetic stripe card in the form of magnetic data.

Abstract: A modular infrared space heating device includes an enclosure having an air inlet and an air exhaust. A plurality of open-ended ferrous metal conduits are positioned in the enclosure between the air exhaust and a plurality of infrared lamps. The conduits are supported at only one end on a ferrous metal sheet. Refractive lens means comprising a glass plate having a plurality of convex focussing surfaces equal in number to the conduits is provided between the lamps and the conduits and arranged so that each convex surface focusses infrared radiation from the lamps on a different one of the conduits. A fan is provided in the enclosure for circulating air through the enclosure from the air inlet, over the lamps, through and around the conduits and out the air exhaust.

Abstract: A filter bag and cage assembly which can be installed or removed from beneath the tube sheet of a baghouse. The filter bag is releasably mounted by a snap ring to a collar secured to the bottom of the tube sheet. A wire mesh cage providing skeletal support for the bag is suspended therein by a hanger which includes a pivotal support bar extending across and supported on the upper rim structure of the bag. When removal of the assembly downwardly is desired, as when there is insufficient clearance above the baghouse, the support bar is raised slightly and pivoted such that it is able to fit into the bag. The snap ring is then released, and the entire assembly can be lowered from the tube sheet together.

Abstract: A collapsible umbrella shade is mounted to the body of the user by means of a belt to which a vertical post is pivoted. A shaft carrying the shade is pivoted to the top end of the post and may be folded downwardly to a compact storage position. During use, a removable pin maintains the shaft in an extended position wherein it forms an upward continuation of the post to locate the umbrella shade directly overhead. A pair of springs stabilize the post in its normal upright position, while wire arms serve as handles for displacing the post in order to provide already access to the pin and the operating mechanism for opening and closing the umbrella shade.

Abstract: A degerminating process wherein the grain kernels are crushed from the thin edges toward the center while avoiding crushing of the relatively flat side surfaces. The crushing force fractures the endosperm under and around the germ and squeezes the germ away from the endosperm in a whole condition. A machine for carrying out the degermination includes relatively rotating discs having corrugations in their facing surfaces in which the kernels are caught and crushed from the thin edges toward the center. An alternative degerminator machine includes a single rotating disc having curved guide vanes on its upper surface for guiding the kernels as they are propelled outwardly by centrifugal force. The vanes orient each kernel with its top or bottom edge in position to impinge upon flat impact surfaces which results in a crushing force applied from the thin edge toward the center of the kernel.

Abstract: For removing a hinge pin, a tool having a wedge-shaped head mounted on a shank equipped with a support projection to receive the hinge. The head includes an impact surface for hammering the wedge portion between the hinge and the head of the hinge pin. A striker plate perpendicular to the tool shank receives impact blows to dislodge the pin from the hinge.

Abstract: A packaging arrangement which prevents damage to fragile articles such as automobile windshields and the like. Upper and lower slotted braces extend in pairs between opposite side walls of an outer shipping crate. The windshields are held in slots formed in the braces. A bracket plate having sharp teeth projecting in opposite directions therefrom is interposed between end flaps of the braces and the corresponding side walls of the crate. The teeth bite into the end flaps and side walls in order to anchor the braces in place relative to the crate. A tightly held strap extends along both braces in each pair and along the outside surfaces of both side walls of the crate in order to press the walls inwardly against the bracket plate. An alternative form of the bracket includes a horizontal flange having additional teeth which bite into the brace, along with a boss which resists twisting of the bracket.

Abstract: A slinger device installed between a pump housing and bearing housing to deflect liquid leaking from the pump housing away from the bearings. The slinger is in the form of an annular disc mounted on the shaft of the pump impeller and sealed thereto by a pair of o-rings. Triangular vanes on the disc propel leaking liquid outwardly by centrifugal action. A ridge is formed between each pair of vanes to direct liquid toward the sides of the vanes along flat surfaces of the disc extending between the ridge and vane.

Abstract: A combination cap and needle unit permits a syringe tube to be capped for storage or prepared for use with the needle in operative position to inject fluid. The cap structure fits removably on the syringe tube and carries a rubber seal element that initially seals the tube outlet. The needle is connected integrally with the cap by a frangible heat seal which may be broken to release the needle so that it may be pierced through the rubber seal element.

Abstract: A control apparatus for an automatic radio paging system comprising a paging tone encoder circuit for generating a plurality of paging signals, a radio transmitter for transmitting the paging signals and a plurality of mobile pagers which are each tuned to a different paging signal. In particular, the control apparatus of the present invention communicatively coupled a Touch-Tone telephone subset with a radio paging system such that the person making the page is capable of initiating and controlling the paging operation from a remote telephone subset. The control apparatus provides the calling party with access to the radio paging system only after the calling party submits a properly coded access signal to the control apparatus. Thereafter, the calling party is free to initiate a page by sending paging information to the control apparatus from a Touch-Tone telephone subset.

Abstract: This invention discloses a nose piece assembly for adjustably mounting a nose piece to an eyeglasses frame having a pair of correction lenses connected to each other by a rigid cross piece. In the preferred embodiment, the nose piece assembly comprises a nose piece for engaging the nose of the wearer, a mounting member for adjustably connecting the nose piece to the cross piece of the eyeglasses, and a guide way for maintaining the alignment between the nose piece and the eyeglasses. The outer dimensions of the nose piece are standardized while the inner size and shape are selected in accordance with the facial features of the wearer to ensure maximum visual acuity and comfort. The mounting member consists of a long slender mounting pin having a threaded end portion arranged to engage an internally threaded hole in the nose piece. The mounting member is rotatably mounted on the eyeglasses frame and raises or lowers the nose piece in response to rotational motion imparted to the mounting member.