Abstract: A pipe fitting for attachment to a hydrotherapy pump has an inlet and outlet having parallel offset axes, with a separate small hollow nipple extending from and communicating with the inlet. The nipple attaches to the pump at a location normally occupied by the pump freeze plug. The fitting permits complete drainage of the hydrotherapy pump after pump is shut off.

Abstract: A muffler for use on an internal combustion engine includes an enclosure generally cylindrical and having end plates for closing the internal volume of the enclosure, at least one partition plate for dividing the internal volume of the enclosure into at least two chambers, an inlet tube, supported by one of said end plates and at least one partition plate, for conducting combustion gases supplied from the engine to one of the chambers; an outlet tube, supported by the other of the end plates and at least one partition plate, for blowing out the gases from remaining one of the chambers; and a connecting tube supported by said at least one partition plate for interconnecting the volume of adjacent ones of the chambers. At least two of the inlet, outlet and connecting tubes are integrally made of a single sheet of metal shaped to form a combination tube including the at least two tubes. A method of manufacturing such a combination tube is also provided.

Abstract: A method of producing a metallic exhaust gas catalyst carrier body includes winding alternating layers of smooth and corrugated sheetmetal strips to form a blank and inserting the blank into a jacket tube, each winding of the blank being formed of a respective smooth and corrugated sheetmetal strip each having an individually predeterminable length; determining the length of each winding in accordance with the length necessary for filling a predetermined jacket tube cross section, fixing each winding beforehand to at least one side of the blank, so as to produce an approximately egg-shaped blank which is tightly wound on the one side and wound with varying looseness in the remaining region thereof; inserting the blank into the jacket tube in such a manner that the tightly wound side is located in a region of the jacket tube cross section in which a largest possible inscribed circle of the jacket tube cross section engages the jacket tube, and a device for carrying out the method, a carrier body formed by the

Abstract: A valve assembly and the manner of making the same of the character which embodies a hollow cylindrical body having fluid inlet and outlet ports and a slide member, or spool, slidable within the body to control fluid flow through the valve. Sealing elements are carried by the valve body for sealable engagement with the slide member as it reciprocates within the valve body. The fluid passageways which carry the fluid between the inlet and outlet ports of the valve body are uniquely formed internally of the slide member. Because the slide member is precision ground to a uniform diameter over its entire length, there exists no differing diameters or steps which might abrade the sealing means or tend to cause an inadvertant shifting of the spool within the valve body due to fluid pressures exerted thereon.

Abstract: A wheel assembly includes a cam and a cam gear mounted on a camshaft of an internal combustion engine. The cam gear is constructed of a laminated stack of flat plate members which are disposed in abutting relationship to one another to form a plurality of axially spaced and radially extending interfaces. The cam gear is press fit onto the camshaft and the frictional forces between the gear and the camshaft provide the substantially sole force for maintaining the interfaces between the plate members in abutting relationship at their radially outer ends to form integral tooth members. The cam is also constructed of a laminated stack of flat plate members and press fit onto the camshaft in substantially the same manner as the gear to form an integral cam surface. The plates which form the cam are stamped from the plates that form the gear.

Abstract: A closely wound, coil type tension spring of one hand having an initial tension exceeding that obtainable by prior spring forming techniques is formed by reverse winding an open-wound compression spring of the opposite hand. Alternative methods and apparatus for forming the tension spring are disclosed.

Abstract: The apparatus is for manually inserting an O-ring in a selected annular groove of a bored valve body. A valve body is placed with one end of the body's bore over a plug. A thin walled tube is placed in the other end of the bore so a gap exists between the plug and tube, adjacent the selected annular groove. Two ends of a probe are then used to urge the O-ring through the tube, passing other blocked annular grooves or air passages in the valve body, toward and into the selected annular groove. Plugs and tubes of different lengths are used to insert O-rings in annular grooves at different positions in the bore.

Abstract: A jack device employed to extract agitators from the drive shafts of washing machines. The device includes an annular split ring member having two closed ends and enclosed chamber therein. The enclosed bladder device expands into a split toroidal configuration. A tube attached at the periphery and extending from under the agitator to the outside tub is employed to transfer hydraulic or pneumatic pressure into the said device resulting in expansion of the same. The wall of the bladder is thicker in a zone around the periphery than elsewhere. This thicker zone prevents the device from ballooning out from under the agitator which would result in failure of successfully removing the agitator from the shaft.

Abstract: A method of repairing an end-of-car cushioning device for railroad cars is disclosed. The cushioning device is of the type having a piston and a shaft connected to the piston. In such devices, the shaft may become damaged with wear. In the disclosed method of repair, the old piston and shaft are removed from the cushioning device. The old shaft is substantially removed from the piston. The piston's true center is found, and a bore is cut through it. The bore is threaded, and an angled chamfer is cut in one end of the bore. A new shaft is provided with a threaded portion, the threads being adapted to mate with the threads of the bore. The shaft also has an angled chamfer adapted to mate with the bore's chamfer. The new shaft is connected to the old piston so that the threads engage and the chamfers abut.

Abstract: A multi-purpose pipe and seal/alignment device is provided for sealing pipe ends against internal or external pressure while protecting the pipe end preparation from damage to facilitate a permanent pipe joining process at a remote location in an adverse environment.

Abstract: A method is provided for the installation of an insert in a plaque or the like. The insert is provided with a bore having a limited access such that a hook-like protrusion on a stand can be inserted into the bore whereafter the stand is rotated to bring the hook-like attachment into engagement with a socket-like arrangement included within the bore. The method involves use of successive drilling tool reciprocal movements for successively drilling a hole and then installing the insert in the hole. The method also involves orienting a series of inserts for installation by vibrating the same, culling out non-oriented inserts, and successively placing the oriented inserts on a matching projection on a slide which carries the inserts successively to installation position.

Abstract: In making a peripheral joint between first and second metal panels such as, e.g., outer and inner panels of an automobile door by hemming the first panel after application of a rust preventive sealant, the sealant is used in a quantity in excess of just sufficiency for completely filling in gaps in the joint to ensure that the excess portion of the sealant is pressed out of the joint by the end of the hemming operation, and the press die member used in the hemming working is formed with a groove in its hemming surface such that the sealant pressed out of the joint is confined within a space defined by the groove and shaped in conformance with the shape of the groove so as to serve as an external seal which closely covers the edge of the hemmed marginal part of the first panel.

Abstract: The tool-changing device has a changing head (7). By means of this, tool holders (4) with cylindrical parts (5) of different diameters can be inserted into a tool holder receiver (1). The changing head (7) has, at the end thereof which faces towards the tool holder (4) concerned at any moment, a substantially segmental part (7a) and a first centering recess provided in the latter, which first centering recess is formed by a part-cylindrical centering surface (8) having a radius corresponding approximately to the radius (R1) of the cylindrical part (5) of a first tool holder (4).

Abstract: A tool storage and transfer mechanism for a tool changer punch press includes a magazine with at least two tool carrying elements located in spaced positions about its periphery adapted to releasably seat punch tooling. The magazine is mounted for rotation about a horizontal axis which is spaced below the plane of the work support surface of the punch press with the distance being dimensioned to locate the tool carrying elements in horizontal alignment with the tool mounting receptacles of the punch press when the magazine is rotated to locate them in the uppermost position. A peripheral portion of the magazine is of reduced radial dimension so that it will not extend above the plane of the workpiece support surface of the press when rotated into the uppermost position. A transfer mechanism effects the transfer of tooling between the uppermost tool carrying element of the magazine and the tool mounting receptacle of the punch press.

Abstract: A method of manufacturing a magnetic head assembly including a carriage, a lower magnetic head fixed to the carriage, a spring-loaded arm connected to the carriage, and an upper magnetic head fixed to the arm and facing the lower head, the upper and lower heads defining therebetween a clearance having a width which is equal to the thickness of a magnetic disk, the arm is so supported at its end remote from the upper head that it may be rotatable only in a direction which allows the upper head to face the lower head.

Abstract: A resistance element causing less sliding noise for use in wound-type variable resistors and a method of making the same are disclosed. A resistance element obtained by winding a metallic resistance wire on a core is subjected to etching treatment. With this etching treatment, the metallic oxides, chlorides and sulfides considered acting as insulators, and organic molecules, adsorbed gases and other contamination forming the surface layer of the resistance wire are dissolved and removed. Furthermore, by immersing the etched resistance element in an ammonia solution, etc., the copper precipitated on the surface of the resistance wire is dissolved.

Abstract: A production facility is provided for automatic assembly and testing of electronic card modules. Heretofore it has only been possible to manufacture card modules in batches without a quick conversion to another type of production, as required, being economically possible. This disadvantage is avoided by the present invention in that all required operating elements (component parts, tools, automatic assembly and testing units) are controlled in direct access with set-up time approaching zero for the production line via an extensive computer hierarchy in which the assembly and test line are available. A master computer administers the cell computers assigned to the individual processing stations which, in turn, control the machine computers. The conveying system has its own control available.

Abstract: A support fixture for a printed circuit board connector having L-shaped wire wrapping pins attached to a printed circuit board includes a plurality of L-shaped elements, each for placement in the L-shaped space defined by adjacent arrays of pins, connector body and printed circuit board. An outer L-shaped structure is juxtaposed with the pins at their bends and with the elements to preclude motion of the pins at their bends in response to wire wrapping forces on the ends of the pins protruding from the printed circuit board.

Abstract: Method for packaging an expandable remote interface unit. The method includes providing a unit circuit board to which a plurality of expansion module interface boards may be detachably coupled without making a permanent connection. The unit circuit board and at least one expansion module interface boards are preferably housed in an enclosure which admits of easy disassembly, so that expansion module interface boards may be added or deleted without the need for soldered connections.

Abstract: Apparatus and method for preparing end of coaxial cable having foamed TFE primary insulation comprises steps of engaging first blades to make a first cut completely through the outer insulation and braid, then withdrawing the blades before making a second cut which penetrates only the outer insulation, then pulling the cable against the second blades to remove slugs of outer insulation and braid as an unit. Braid is subsequently flared by rotating a tool against the exposed braid, and primary insulation is axially compressed to expose the signal conductor.

Abstract: An electric shaver comprising a shaver housing comprising a generally rectangular box-like casing and a head casing removably mounted on one end of the box-like casing; a finely perforated stationary shear foil replaceably mounted on the head casing; a reciprocable blade assembly positioned inside the head casing and outside the box-like casing and cooperable with the stationary shear foil to cut bristles entering the head casing through the perforations in the stationary shear foil; an electric drive motor accommodated within the box-like casing and having a drive shaft, said drive shaft having first and second ends opposite to each other and protruding outwards from the motor in opposite directions away from each other; means for connecting the first end of the drive shaft with the blade assembly to permit the blade assembly to undergo oscillation relative to the stationary shear foil; a photoelectric detector comprising a light emitting element and a photoelectric cell for providing an electric output sign

Abstract: A reference antenna construction preferably employing a biconical antenna in combination with a balanced to unbalanced transformer or balun adapted to provide proper matching and operation over a broad frequency range. The reference antenna is used to calibrate other antennas. A ferrite sleeve is preferably used over the balun to reduce unbalanced currents flowing in the shield and to improve performance. A tool is described that allows fast and accurate construction of the balun by providing precise severing of the center conductor.

Abstract: A knife of the type having a casing and a blade pivotably mounted thereto has an actuator button slidably mounted to the casing. The blade has a concentric wheel associated therewith. One end of a non-extensible linkage is connected to the actuator, and the opposite end of the non-extensible linkage is wrapped around a portion of the wheel. When the user exerts a force to slide the actuator, the user-exerted force is transmitted by the non-extensible linkage to rotate the wheel, thereby pivoting the blade from its closed position to its open position.

Abstract: An attachment for a portable jig saw permits a concurrent use of a pair of jig saw blades. The blades are each attached to a holder by threaded fasteners, while the holder is then threadably attached to the jig saw. The spacing between the blades may be varied by an adjustment of the holder.

Abstract: An utensil for feeding infants and small children is which an elastomeric handguard is mounted around the utensil handle near the food carrying portion of the utensil, e.g. spoon bowl. The removable guard has an object such as an amusing face thereon facing the child.

Abstract: For accurately determining the position of a measuring head 14, a multicoordinate measuring machine has an additional measuring device, which essentially is formed by a scanning head 19 having a measuring probe 20, and inserted in a beam 16. The position of a cross arm 6 in a distance A is determined by means of the measuring probe 20 and is passed on over an amplifier 22 to a computer 25 for control and display purposes. The coordinate measuring machine operates with only one length scale 5. The cross arm 6 is supported at its ends and without play on carriages 11 and 12, which can be moved in the X direction in guiding systems 3 and 4, which are arranged parallel to each other.

Abstract: A gauge which in its preferred form consists of two vertical members and two cross bars with means for relatively adjusting the relative position of the cross bars on the vertical members is disclosed. Each of the cross bars also carries a pair of threadable castings together with a reversely threaded screw which, on rotation, moves the threadable casting toward and away from the center of each cross bar. When a plurality of such gauges are employed, one located in each of preselected cross-sectional planes of a vehicular body, the dimensions of the boey relative to datum references and from the gauge can be determined and thereupon whether the vehicle be damaged or "true" and hence undamages. Such gauges avoid the use of prior art racks and frames upon which the vehicle was placed in order to measure the vehicle trueness.

Abstract: The described invention is a precisely adjustable transporter for moving a reticle past an optical slit as a step in the production of semiconductor wafers. The reticle stage rides along a pair of optically flat planar, intersecting, bearing surfaces supported by air bearings on each bearing surface. Pressurized air and vacuum may be simultaneously employed to effect substantially friction-free motion while preventing displacement from the bearing surfaces. Axial adjustments on each air bearing permit precise adjustment of the reticle stage and reticle.

Abstract: Apparatus for expelling and/or withdrawing moisture from, or for admitting moisture to, a running web of paper or textile material has rolls which define one or more nips for the running web and at least one of which has a stack of washer-like funnel-shaped absorbent discs compressed between two end walls one of which has an outwardly bulging frustoconical surface and the other of which has an inwardly bulging frustoconical surface. The discs surround a core of stainless steel and their density in the region of the core is highest due to the provision of funnel-shaped elastomeric inserts which surround the core and whose thickness decreases in a direction from the core toward the external surface of the roll. Such roll renders it possible to operate with a stack of discs whose hardness at the periphery of the roll is relatively low in spite of a substantial nip pressure, or to operate with a very pronounced nip pressure at a given hardness in the region of the peripheral surface.

Abstract: The conveying apparatus for a flat article, particularly a cardboard blank, paper sheet or the like, comprises two driven endless belts running over guides positioned opposing each other between which the article is clamped during transport. The endless belts are guided on base surfaces of beds of the guides having a wavelike longitudinal cross section in the conveying direction with a plurality of wave troughs and peaks. A plurality of lateral supporting members are attached to each of the beds. The wave crests of one of the guides are positioned staggered with respect to the wave crests of the other guide and opposing the wave troughs of the other guide. Furthermore the endless belts are either elastic in the conveying direction or a tension provider is mounted engaging each of the endless belts.

Abstract: The invention relates to an arrangement in drying sections intended for drying web material (2) which is arranged for movement through the drying section while supported by a plurality of air streams which impinge on the undersurface of the web and which extend parallel with, or substantially parallel with a plane allotted to the web, each of these air streams being given an exiting velocity and direction, via nozzle-like exit apertures (11, 11a) formed in a blow box (7), such as to maintain the web (2) in a suspended state above the blow box (7). Arranged in that end-part (8) of a blow box through which a flow of supply air (7a) is introduced thereinto is a means (20) operative in reducing and/or eliminating and/or over-compensating the influence of the velocity vector (7a') of the flow of supply air (7a) on the direction in which the air streams exit from the blow box through nozzle-like exit apertures (11,11a) formed therein and located adjacent the end-part (8) of the blow box.

Abstract: The rear entrance ski boot comprises a boot shell to which a front quarter and a rear quarter are hinged. Also provided is a closure means for tightening the rear quarter toward the front quarter. The invention is peculiar in that it comprises a rear inner quarter connected to the cited shell and spanning the lateral and heel areas of the foot at the ankle region, the rear inner quarter fitting at least partially within the area bounded by the cited rear quarter, for securing the ankle region.

Abstract: This operating device comprises an operating knob rigid with a reel accommodating a cable winding thereon and acting on foot locking elements. The knob is supported on a lever pivoted at one end thereof to the ski boot so as to be movable between an opening position in which the knob is accessible from the outside and a closing position in which the knob is enclosed between the lever and the ski boot. The knob presents a half-moon-shaped lever pivoted to the knob and also movable between a rest position, flush with the knob, and an operating position, in which the half-moon-shaped lever is arranged transversally to the knob and acts as a gripping member therefor.

Abstract: An excavation bucket having a closed top and an open front and comprising two opposed sidewalls each with a flat and an outwardly extending flanged portion, which bucket digs an excavation which has a combination of a vertical wall area with an adjacent and contiguous sloped wall area. Teeth are mounted outwardly from the flanged portions of the sidewalls producing a terracing effect in the sloped sidewall area of the excavation.

Abstract: An automatic page turning device of the type comprising a movable element controlled by a motor of which the operation is controlled by a control member to be actuated by the user. It is characterized in that it comprises a suction tube to lift a page as well as a movable element comprised of a double acting pusher. The double acting pusher is situated directly above a document and is movably mounted in linear translation in the two opposite directions transverse to the side of the pages of a document and along which they are bound together. The suction tube and the double acting pusher are also movably mounted perpendicularly to the plane of a support structure.

Abstract: A firearm trigger safety status signaling device includes electrically energizable audio and light signals that are mounted to a component of the trigger mechanism itself for actuation in response to movements of the trigger safety.

Abstract: The present invention relates to a locking lug insert which is inserted into the locking lug recess of a bolt action receiver. The insert defines a central aperture aligned with an elongated chamber in the receiver and one or more cut-out portions opening into the central aperture, one cut-out aligned with each locking lug groove. The cut-out portions are equal in number to the number of locking lug grooves formed in the receiver. The cut-out portions are sized so as to accommodate the locking lugs of the bolt when the bolt is in its closed position. The insert is caused to rotate in the locking lug recess when the bolt rotates, due to the interengagement of the locking lugs, with the cut-out portions.

Abstract: A magazine charger having a body with a spring and an open end for receiving a magazine to be charged with cartridges. The body has a closed end with a passage having outwardly flared walls. A plunger is in the passage. The plunger is adapted to move cartridges against the magazine spring. The charger also has a plunger spring which biases the plunger away from the open end of the charger. The plunger is operable to sequentially depress the uppermost cartridge, facilitating feeding of the cartridges to a magazine having two parallel rows of cartridges.

Abstract: A portable hunting blind or stand adaptable to rest on a mobile or permanent platform, the blind having a cylindrical cross-section and external frame to avoid obstruction with a hunter's movement. The deer stand comprises a conical overhanging roof resting above a cylindrical wall. The wall has external framework and contains a plurality of radially spaced window apertures; an outside-facing window at each window aperture that is adapted to swing upwardly and outwardly; a connection to allow an inhabitant on the inside of the cylindrical wall to open the outside-facing window; a horizontal gun rest adjoining the inside of the cylindrical wall inside the portable building beneath the window aperture and, an inside-facing window at each of the window apertures adapted to swing upwardly and toward the interior of the cylindrical wall and a window latch adapted to hold the inside-facing window in a vertical position.

Abstract: A fishing apparatus including a wire yoke designed to extend around the bottom of and to each side of a tail portion of a minnow. A straight bendable wire shank member is connected at one end thereof to the top end of one side of the yoke and extends substantially horizontally in use when attached to a minnow. This shank member is designed to extend through a tail section of a minnow. A downwardly extending member on the top of the other side of the yoke is provided for selectively holding the other end of the shank member from bending upwardly when disposed within such downwardly extending member, but permitting the shank member to bend downwardly and outwardly to become disengaged from such downwardly extending member such that the free end of the shank member, when unlocked, can be pushed through the tail section of a minnow and then locked into place under the downwardly extending member. A hook is connected to the bottom of the wire yoke.

Abstract: A trap assembly (10) and housing (11) providing an electrical circuit (FIG. 5) for triggering the trap assembly is described. A coil (31) pulls a plunger (30) to activate a lever (20) to release a rod 18 holding the U-shaped wire 12. The wire and rod are part of the electrical series circuit so that the circuit is disconnected after the trap is sprung. The animal A and base 17 can be discarded from the housing, battery B and coil which can be reused.

Abstract: An applicator on a flexible support for herbicides and the like is formed with a rotating disk carrying a plurality of generally radially extending wicks. The wicks are fed by liquid from a central container and a rotatable cover is provided about the applicators.

Abstract: A viewing port for doors such as residences including a light polarizing assembly including at least two linear polarized optical elements, one mounted for rotation with respect to the other element(s) to change the viewing port from light passing to light blocking or reduced transmission condition. The light polarizing assembly is located at the inner side of the door and is surrounded by a tapered portion of its mounting toward the outer face to provide undistorted wide angle viewing of the area surrounding the door. In another embodiment of this invention, my viewing port is designed to be integrated into a stained glass window.

Abstract: A wide belt orbiting sander having an improved workpiece conveyor system, wherein a plurality of resiliently biased platen segments are utilized to apply a force against the underside of the upper conveyor flight in oppositely disposed relationship to the sanding heads. The platen includes a number of individual segments, each segment occupying a certain finite portion of the transverse dimension of the conveyor, and with each of the platen segments being mounted for rocking and pivotal motion about both longitudinal and transverse axes. Wide belt sanders equipped with the improved conveyor system of the present invention are capable of handling a wide variety of workpieces including workpieces of variable and varying dimensions.

Abstract: A knife sharpener rod pivotally mounted on a supporting base member whereby it can be angularly positioned for use and rotated into a recess or chamber in the base member for storage. A finger guard is also pivotally attached to the base member.

Abstract: A thermally efficient, protected membrane roofing system for insulating the interior of a building including a water impermeable membrane (26) and an array of factory assembled roofing panels including a drainage and insulation board (42), a vapor barrier course (44) and an insulation course (46). The seams between adjacent roofing panels is covered with a water proof, but vapor permeable, tape (48) and the panels are covered with a protective layer (50).

Abstract: A top concrete section for a manhole assembly is cast with a plurality of bolt slot inserts each insert having a substantially inverted T-shaped hollow interior for slideably receiving a nut which may be moved to any desired position along the base of the insert for threadedly engaging a threaded rod employed to rigidly secure a cast iron cover frame to the top section.The method for casting a manhole top section comprises the steps of releasably mounting each insert within the mould assembly by means of a retaining slide which itself is slideably received within a pair of holding brackets provided on each of the inner and outer mould members, the insert being substantially fully closed on all sides thereof and having a top surface formed of a thin web which is easily fractured or cut away after the top manhole section is cast. The fully enclosed insert prevents any concrete from entering into the interior thereof.

Abstract: A store display apparatus is provided for a retail store having a transparent window or wall adjacent a public walk. The display apparatus includes a conveyor extending near the window or wall for providing a moving display of articles on sale to passers-by on the public walk. The conveyor preferably extends into the store and comprises a flexible element.

Abstract: My invention relates to a tetrahedral-octahedral truss construction system for shell framework of icosahedral-spherical, and/or part-spherical structures, which are based on the regular icosahedron. The system is represented by a central nucleus and by a sequentially ordered infinite set of ever-increasing, space-filling truss layer shells, which are constructed from triangular units of equal size, equal angular values and identical proportions. Icosahedral-spherical truss shells can be constructed of single, double and multiple layers.

Abstract: An access floor panel includes a metal pan having a bottom and sidewalls. Lanced tabs extend from the bottom. A plurality of corner inserts include pad portions and core portions extending through the bottom. A concrete mixture encapsulates the tabs and insert core portions. The inserts cooperate with pedestal heads or plates to lock the panel to support pedestals. The panels also include silencer buttons. The buttons and inserts limit metal-to-metal contact. The inserts eliminate the need for stringers.