Abstract: A method of treating a heat exchanger made of aluminum or an aluminum alloy comprising applying onto the surface of the aluminum heat exchanger a noncorrosive flux having a flux core with an outer coating of zinc or a zinc alloy formed by vacuum vapor deposition or ion plating, and then heating the resulting heat exchanger to effect brazing. A diffused zinc layer forms on the surface of the heat exchanger and protects it from corrosion, in particular, from electrolytic corrosion.

Abstract: A method and apparatus for facilitating removal of spent tubes from boilers or heat exchangers in environments where access to one side of the wall through which the tube extends is limited. The apparatus includes a jaw assembly that is movable between a retracted position, at which it can be introduced within a tube to be removed, and an expanded position, at which it radially expands the tube so as to prevent longitudinal movement of the tube. The jaw assembly can be manipulated between the retracted and expanded positions solely through the tube interior so that a worker stationed at a proximal end of the tube to be removed can move the jaw assembly to the expanded position at which the distal end of the tube is fixed against longitudinal movement. After application of pulling forces to fracture the tube, the jaw assembly can be disengaged solely by access through the tube from the proximal end, whereby efficiency of tube removal in environments of limited access is materially enchanced.

Abstract: Both an apparatus and method for plugging a conduit, such as a tube in the tubesheet of a nuclear steam generator, is disclosed herein. The plugging apparatus generally comprises an inelastically expandable plug that contains a fluid-receiving cavity, and an expansion means including both a source of pressurized hydraulic fluid and a pull-rod member having a piston for advantageously applying both a radially expansive force and a compressive force to the plug at the same time in order to inelastically expand it into sealing engagement with the inner wall of a tube. In the apparatus of the invention, the compressive force exerted on the plug by the pull-rod member not only serves to inelastically deform the plug into a radially expanded shape, but is also used to seal the open end of the plug so that the pressurized hydraulic fluid admitted within the cavity of the plug will not escape.

Abstract: An apparatus for connecting stacked thin plates 4, 5 (in particular sheet-metal plates) or plate sections, according to which stacked flat parts 10, 11 of both plates are first deep drawn together with one another, after which the bottom area of the deep-drawn flat parts is swaged wider, and wherein the radial expansion of the bottom area of these deep-drawn flat parts is limited, as a result of which a plastic deformation of the material of the plate takes place, particularly in the peripheral area, so that a connection point is created. By means of a crimp 17 present in the peripheral area of the bottom 16 of the blind opening 3 of the die 2, the swaged material flows into itself at the points that are to be connected, and hence the clinching strength, is improved.

Abstract: A method of manufacturing a sheet metal poly-V pulley including forming a tubular peripheral wall integrally from the peripheral edge of bottom wall and forming poly-V grooves in the peripheral wall at specified pitches, in which a bent part is formed in the bottom wall in an annular form concentric with the axial center of the peripheral wall and bulging out in a convex form toward the opening side of the peripheral wall. The load from the poly-V belt which may cause plastic deformation of the sheet metal poly-V pulley is absorbed by this bent part, so that the increase of material cost, difficulty in forming, and increase of weight due to increase of the thickness of the blank of sheet metal poly-V pulley in order to enhance the strength may be avoided.

Abstract: A method of constructing a spiral staircase to the specifications of an architect comprising the steps of taking a plurality of flat rectangular sheets of metal and cutting the front edge at an angle to form the front edge of a tread. Then cutting a pair of stringers in the sheet of metal and bending the stringers downward until they are perpendicular to the tread. Then cutting a riser at the back of the sheet of metal and bending the riser upward. Once a plurality of sheets of metal are formed as outlined above they may be assembled by attaching the stringers of one sheet to the risers of another, forming a spiral staircase. A base for the staircase to rest on and attach the first step to should be employed. The base should be attached to the floor. The base may be made from a rectangular sheet of metal by cutting the front edge at the same angle as the front edge of the tread and then bending a front and rear support for the base in the sheet of metal.

Abstract: Glass or ceramic fibers or other fibers such as graphite properly protected by a suitable adherent ceramic or metal coating are immersed in a liquid metallo-organic solution containing a noble metal compound as a primary ingredient, then dried and fired in air or in a slightly oxidizing atmosphere so as to produce a noble metal coating on the fibers. Fibers may be in the form of individual filaments, as a multifilament tow or yarn or as a woven fabric. The fibers coated with a nobel metal are then incorporated into a metal matrix composite material by immersion in a molten bath of the desired matrix metal, placing the fibers in a suitable mold and casting the molten matrix metal around them or placing the fibers between solid sheets of matrix metal and effecting consolidation by diffusion bonding. The coating thickness on the fibers should be at least 0.30 microns and should not exceed 0.50 microns.

Abstract: In a method for producing a clad plate by rolling an improvement comprises: a base material, a cladding material, and a cover material overlaid one on another to form a multi-layer structure, and after cleaning joining surfaces of the materials, the cover material is welded to the base material along the periphery thereof, thereby sealing and fixing the cladding material between the cover material and base material, and forming a multi-layer assembly. A member for preventing warp is overlaid over an outer surface of the cover material via a separating agent, and the member for preventing warp and the base material are fixed to one another by welding along the periphery thereof, thereby forming a blank for rolling. The blank is hot-rolled, a rolled article is cut along its periphery to separate the means for preventing warp, and subsequently, the cover material is removed by machining, grinding, or pickling.

Abstract: Each of coupling elements mounted on a slide fastener stringer tape has a coupling head and two legs extending from the coupling head and mounted astride of a longitudinal beaded edge of the stringer tape, the legs being integrally interconnected by a connector extending through the stringer tape. The coupling elements are removed from the stringer tape by gripping the stringer tape between a pair of grippers with the coupling elements supported on the grippers, thrusting cutting edges into the coupling head of each coupling element toward the longitudinal beaded edge to break the coupling head, and driving wedge-shaped spreaders into each coupling element through the broken coupling head thereof to spread each coupling element until the connector is forcibly broken, for thereby breaking each coupling element into two pieces off the stringer tape.

Abstract: The vehicle door construction contains an inner door panel and an outer door panel with a skeleton juxtaposed by the inner and outer door panels and mounted with interior door parts.The vehicle door construction is assembled with the vehicle body by mounting the interior door parts on the skeleton and then mounting the inner door panel on the skeleton.This vehicle door construction permits a less laborious assembly of the side door and enhances serviceability.

Abstract: Method and apparatus for fastening thin plates (4, 5) overlying one another, via a fastening element formed from the material, which element is obtained by partial stamping separation and/or deforming of plate areas (10, 11) out of the plate plane via a male die (1, 21, 26) and a female die (2, 3, 23 and 31, 32) with subsequent compressing of the plate areas, wherein the plate areas (10, 11) that as the fastening element grip the stamping or deforming hole from behind are leveled into the plate plane, so that after the machining, on the outer surface of the plates that have been fastened together, no nubs remain that are noticeable from the outside.

Abstract: A method for manufacturing a siamese-type cylinder block, which comprises the steps of pouring under pressure a molten metal of aluminum alloy into a siamese-type cylinder barrel molding cavity with an expansion force applied to the sleeve placed in such cavity, and then removing the expansion force after the completion of solidification of the molten metal to cast a cylinder block blank, and subjecting the resulting blank to a working operation for forming the peripheral inner surface of the sleeve into a true circle.

Abstract: An arrangement for removing and separating into pieces wrapping wire (3) encircling a bale (2) or like package in individual, closed loops includes a first wire clipping device (6) for severing the wire in each separate loop at a location (29), to form a wire length; a second wire clipping device (14, 16, 17) for dividing the wire length into smaller pieces; and feed means (10, 12'16, 18) for advancing the wire length to the second wire clipping device. The latter device (14, 16, 17) comprises at least one cutting bit (16) projecting radially outwards from a motor-driven rotor (14) and whose cutting edge generates a cylindrical surface, and further comprises a stationary counter cutting bit (17). The feed means includes a part-cylindrical guide surface (18) which co-operates with the cutting edge to advance a wire length introduced between the guide surface and the rotor (14) to the counter cutting bit.

Abstract: A tool changing device for program-controlled universal milling and drilling machines as well as machining centers. The device comprises at least one gripper movable in plural axes between a tool magazine and the horizontal and vertical work spindles respectively. The gripper is secured to a program-controlled motor-driven support and transfers the tools from the transfer position of the tool magazine to the horizontal or vertical work spindle. In accordance with the disclosure a bracket is mounted on a cross member secured to a sidewall of the machine frame, the bracket being axially movable and pivotable within predetermined limit positions. A bent or cranked support is mounted on the free end of the bracket for rotation therewith and carries a 90.degree.-rotatable cross-arm including the gripper.

Abstract: A coil placing machine having an improved operating sequence for positioning coil separating insulators in certain core slots is disclosed. The insulators are supported about a coil placing machine super structure and stripped therefrom into the respective slots by movement of the stator core into position for receiving coils from the placing machine. In the preferred apparatus a stator gage and blade aligning tool has a first portion for engaging blades of a coil placing apparatus and the second portion for axially and radially aligning a stator core with the coil placing apparatus as well as a portion intermediate the first and second portions for supporting insulators in a position to be transferred to a stator core by relative motion between the core and tool. With this arrangement, the motion normally required to position the stator core preparatory to receiving coils is also effective to locate the intermediate insulators in the stator core.

Abstract: A machine for forming electric motor stator insulating material and inserting it vertically directly into the stator placed on the pallet of a transportation system, without removing the stator from its pallet. The machine includes a guiding system for the paper fed from a feed roll, with the following elements working in sequence: a pair of rollers for trimming the paper to the required width; a pair of paper shaping and pulling rollers, at least one of which is motor-operated and the other of which can be moved away from the first during insertion of the paper into the machine; a paper cutter operating in a substantially horizontal direction for cutting across the paper; a former for forming the cut paper inside vertical guides and operating parallel to the cutter; and an inserter for inserting the cut and bent paper into the stator slot and operating in a vertical direction moving through the paper former.

Abstract: A commutator alignment fixture includes a cylindrical bore having a plurality of axial circumferentially spaced blades extending inward from a side wall thereof. The circumferential spacing of the blades is determined according to the circumferential spacing of longitudinally extending, circumferentially spaced slots in a commutator wherein the alignment fixture blades coact with the commutator slot to axially slidably support the commutator in known circumferential orientation to the armature winding and core location when the commutator assembly is press-fit onto an armature shaft so that the commutator slots are in circumferential orientation with respect to the slots on the armature.

Abstract: Positioning of the individual portions is no longer effected on the laminating station but on a positioning station which is arranged upstream of the laminating station. In the positioning station the individual portions of a layer are deposited and positioned by being pushed against each other. The finally positioned individual layer is then delivered as a closed unit to the laminating station and laminated to form a transformer core. The individual portions are stacked on a stacking station in such a way that they are already arranged in the correct relative position with respect to each other.

Abstract: A method for producing keyboards by which the majority of manual labor can be omitted, and which primarily includes the following steps: molding keys from an injection mold in which the arrangements of the cavities thereof are the same as those of a commercial keyboard; moving the molded keys out of the injection mold and socketing the molded keys with a number of corresponding switches of a board by using a taking-out device; and pressing the molded keys tightly together with the corresponding switches so as to form a complete keyboard.

Abstract: A system is provided for easily replacing a single tube in shell and tube heat exchangers without removing the bundle. The system comprises: (1) a rod which is inserted into the tube to be replaced and left in place when the tube is removed and (2) a special tool which is adapted to fit into the end of a replacement tube and over the rod.

Abstract: A mounting head exchange apparatus for a part mounting machine includes a moving unit as a part mounting portion for mounting parts onto a circuit board and the like, head holding portions, and a plurality of mounting heads provided at the head holding portions. Each of the mounting heads has a suction nozzle for attracting parts, and sets of position regulating claws for effecting positioning of the attracted parts. The mounting heads provided at the holding portions are so arranged that a predetermined mounting head is selected from them and detachably mounted to the moving unit. Thus, the mounting heads each provided with the position regulating claws and the suction nozzle may be exchanged as one unit.

Abstract: Method for installing rivet-type electrical connectors onto flat conductor cables wherein the connectors are fed to the machine from a magazine, transferred to a press and then pressed onto and through the cable over an anvil which holds the rivet-type connector to form a secure connection with the cable. The resulting profile of the connector is such that it extends through the conductor of the cable and is held thereon by a flange on one side of the cable and an eyelet-type crimp on the opposite side of the cable.

Abstract: An electric circuit assembly (10) includes a ceramic substrate (14), a copper lead frame (20) having pad portions (22, 24, 26) directly bonded on the substrate, crimped portions (28, 30, 32) extending from the pad portions in a humped configuration above the substrate, and extension portions (34, 36, 38) extending from the crimped portions laterally beyond the substrate. The crimped portions prevent bonding of the extension portions to the substrate, to enable upward bending of the extension portions and crimped portions along bend lines (54) spaced laterally inwardly of the outer edge (18) of the substrate.

Abstract: A method and apparatus are described for precisely centering the leads of surface mountable electronic components on the pads of a printed circuit board. The method includes coating the pads with solder, placing the leads of the components on the solder coated pads, melting the solder and vibrating the leads relative to the pads while the solder is molten, so that the surface tension of the molten solder centers the leads on the pads. The molten solder is then cooled until it resolidifies.

Abstract: A method for interconnecting nodes in each of a number of nets. This invention involves generating initial zones for all nets and determining cumulative demand for path spaces needed by these initial zones. The demand is then compared with the supply, and scores are determined for the paths of the initial zones. Redundant paths with the worst scores are then gradually deleted until there are no redundant paths. If however, demand for path spaces still exceeds supply, expanded zones are generated in areas where demand exceeds supply and redundant paths are gradually deleted until there are no redundant paths. The paths remaining after deletion from the expanded zones are then used to interconnect the nodes of the nets. The nodes are then interconnected using the remaining paths.

Abstract: A method for manufacturing a wiring harness of the type having a preformed cable containing a plurality of conductors and arranged in a predetermined path, and having breakouts for certain of the conductors which terminate in electrical contacts at one or more predetermined locations, includes the step of molding an integral frame from insulating mateial. The frame has groups of connector housings for receiving electrical contacts, and located at positions corresponding to the locations of the breakouts, and runners that integrally connect the housings. The method also includes laying the preformed cable in an operative position on the frame so that the cable breakouts are adjacent to the groups of connector housings. After the electrical contacts are inserted into the connector housings, the runners are removed.

Abstract: The present invention relates to a method and apparatus adapted to assist in making electrical wiring harnesses comprised of connectors (12) having passages (14) on given center-to-center spacing and containing terminals (20) terminated to flexible wires (40); the method and apparatus featuring providing tooling to effect wire shear and termination on the given spacing via a spring-loaded wire clamp and wire guide means associated with nesting die (50) and punch (54) tooling whereby the wires are sheared and terminated in a single stroke.

Abstract: A circuit board pin with a compliant portion having two side-by-side beams joined together along one edge of each beam. At the join, the beams hinge relative to each other and opposing tapered surfaces of the beams diverge from the hinge. A convex continuously smooth surface extends around the beams to make the beams thicker as they extend away from the hinge. The compliant portion is made within a closed mold by displacing material into the shape of the mold cavity.

Abstract: A razor set comprises an L-shaped handle having one leg with slides for receiving a razor head, and the other leg to be grasped as a handle by the user. The other leg serves to support a razor head or a receptacle for a razor head to be detachably slidably inserted on the one leg. The receptacle can be provided in the other leg or can slide on the other leg, either parallel or perpendicular thereto.

Abstract: A safety razor assembly is provided comprising a plurality of stacked discrete shaving elements. Each of the shaving elements contains a shaving head mounted in an upwardly facing enclosure, and wall structure forming a downwardly facing cavity for receiving the shaving head enclosure of another shaving element in interfitting engagement therewith. The assembly comprises a sufficient quantity of elements that, when stacked one upon the other, form a gripping handle which is employed when using the topmost shaving head in the shaving process. An overcap is provided having an upwardly projecting protuberance with side wall dimensions equal to those of each shaving head enclosure and a downwardly facing cavity having interal dimensions equal to those of each shaving head cavity.

Abstract: A manual razor comprises a shaving head and a handle that extends therefrom. The shaving head includes at least two pairs of dual razor blades, each blade having a single shaving edge. The dual blade arrangements are fixedly mounted on the shaving head in a substantially longitudinal manner in order that the shaving edges of all blades are exposed in a common plane. A skin engaging surface is provided between each dual blade arrangement for providing a closer shave.

Abstract: A pipe cutter is formed as a cylinder with a longitudinal entry slot into which a pipe can be introduced to rest on rollers 101, 102 by pushing back cutter wheel 110 against a weak biasing spring until it snaps into cutting position. As the cylinder is thereafter manually turned around the pipe, cutter wheel 110 rotates by friction. Its shaft 111 rolls in arcuate slots in yokes 106, and approaches the pipe, so that the cutting edge of wheel 110 enters and severs the pipe. Cutting pressure is exerted by yokes 106 pivoting at 105 outwards so that nodules 106a tend to lift spring-casing 107, secured only at 108, 109 and encounter its prounced inwardly biassing force.

Abstract: A piston type nutcracker with two movable jaws. A connecting rod which is threaded and atached to piston jaw and is adjustable to adapt to different size nuts. The two movable jaws move in a horizontal position until the jaws and nut enter the chamber, thereby enclosing the nut so there is no scattered shell or shell dust when nut is cracked. The solenoid is to be connected to a source of electric power and may be energized by a switch. A nut support member has a through opening which is between the jaw members in their spaced position to crack a nut and for movement to discharge a nut into a container disposed below the jaw members after the shell cracking is completed.

Abstract: The cutting appliance of the present invention features a pivotally connected upper (3) and lower casing (2), each having a pair of parallel sidewalls which, in closed position, contact the sidewalls of the other casing and clamp a band, strip, or web (18) or surgical dressing or the like on each side of a desired cutting line, a cutter blade (12) extending longitudinally within the lower casing and having an edge (13) parallel to, but spaced below, the plane (X--X') of contact of the casing sidewalls, and a bifurcated cursor (11) slidable within the upper housing and having a pair of jaws (17, 17') which apply pressure to the clamped band (18) on each side of the blade edge (13), thereby forcing it below the contact plane, onto the cutter blade edge (13).

Abstract: An electrically operated portable can opener being adjustable in height to enable opening various size cans, the can opener having a primary housing which is partially received within a secondary base housing with a rotary cam serving to control the raising and lowering of the primary housing with respect to the base housing.

Abstract: The invention is directed to a carriage for guiding a computer mouse. The bottom surface of the carriage is recessed for insertion of a computer mouse therein. The mouse is removably clamped in the recess to prevent relative movement to the carriage. The centrally positioned control ball of the mouse is free to operate in a conventional manner. Four rotatable wheels are carried by the carriage and are pivotally connected through a crank arm to a common free floating bracket. An adjustable clamp and biasing spring allow any configuration of a computer mouse to be removably clamped within the carriage. When a mouse is clamped within the carriage and oriented relative to an X/Y axis movement of the carriage and mouse in any direction does not change the original setting of the X/Y axis. The carriage further includes a cross-hair sight for accurately tracing a drawing with the mouse and carriage.

Abstract: An apparatus for compensating for the thermal expansion of two machine parts which are relatively movable in longitudinal guideways. The apparatus comprises a rule, a support rod longitudinally disposed on the movable machine part for supporting the rule, and an electric scanning head mounted on the stationary machine part. The support rod is made of a material which exhibits negligible thermal expansion in the concerned temperature range. The forward end of the support rod is rigidly secured to the forward end of the movable machine part while the rear end thereof is movably guided on that machine part. The rear end of the rule is fixed to the rear end of the support rod. The scanning head is disposed on the stationary machine part in such a way that any thermal expansion of the stationary machine part cannot affect the location of the scanning head.

Abstract: A capacitive extensometer utilizes an extensometer frame having a pair of arms connected together about a hinge axis at first remote ends, and having second ends which include specimen contacting members for engaging the surfaces of a specimen to be tested. A capacitive type sensing arrangement is mounted on the arms, and is used with conventional circuitry for determining arm motion with respect to each other. The sensor is made so that it can be adjusted, and also can compensate for nonlinearities by utilizing differently shaped elements. The ability to mount and protect the capacitor sensor appropriately, while obtaining a relatively large output signal enhances the operability of the extensometer.

Abstract: An adjustable template device for positioning over a sheet material for use in framing and cutting the sheet material to a selected shape comprising a plurality of slidably interconnected frame members forming a closed polygon. Each frame member comprises a guide edge for guiding a cutting blade and a socket adjacent one end of the guide edge for slidably receiving a portion of an adjacent frame member so that the guide edges of adjacent frame members form the sides and one corner of the polygon formed by the device. Each of the guide means has a plurality of detents which are engageable by a pin associated with each socket to retard relative sliding of adjacent frame members. The guide edges are preferably provided with a plurality of slots for receiving a cutting blade so that a cutting blade can extend in the slots to fully cut the corners formed by the frame members. At least some of these slots are positioned relative to the detents to ensure alignment with the adjacent cutting edge.

Abstract: A device for indicating the size of an object, particularly a kinescope, includes a pivotal sensing-indicating arm. A sensing portion of the arm is urged by a lever which centers the kinescope on a temporary holding fixture. An indicating portion of the arm moves in response to the motion of the sensing portion and moves into alignment with one of a plurality of sensors to indicate the size of the object.

Abstract: Present invention is a manufacturing gauging system for statistical process control including a gauging fixture for holding a manufacturing part in a fixed location and orientation and for positioning a transducer probe in a predetermined relationship to a manufactured dimension of the part, a non-volatile memory for storing a set of tolerance dimensions relative to the manufactured dimensions of the part and a data processing system which receives sequential signals from the transducer probe relating to measurements of manufacturing dimensions of the part and stores them in the non-volatile memory. The gauging fixture includes a plurality of zero-based measurement stations. Each zero-based measurement station enables positioning of a transducer probe in a predetermined location and orientation relative to the part for providing a reference to a specified measure of the manufactured dimension of the part.

Abstract: A contour and outline transducer gage assembly for selectively making outline (gap) and contour checks of parts positioned proximate thereto is provided with a slidably movable carrier arm within the gage housing in selective spring biased operative engagement with a linear potentiometer fixedly provided within the gage housing. Selective movement of the carrier arm in relation to the linear potentiometer causes a gaging electrical signal to be generated for read-out on associated data collector means. A movable cover plate is provided externally of the gage housing in fixed actuating engagement with the movable carrier arm. An adjustable contour check pin support assembly is provided on the movable cover plate so as to provide selective horizontal, vertical and angularity adjustment of a part-engaging contour check pin mounted on the contour check pin support assembly.

Abstract: A contour and outline transducer gage assembly for selectively making outline (gap) and contour checks of parts positioned proximate thereto is provided with a slidably movable carrier arm within the gage housing in selective spring biased operative engagement with a linear potentiometer fixedly provided within the gage housing. Selective movement of the carrier arm in relation to the linear potentiometer causes a gaging electrical signal to be generated for read-out on associated data collector means. A movable cover plate is provided externally of the gage housing in fixed actuating engagement with the movable carrier arm. An adjustable contour check pin suppor assembly is provided on the movable cover plate so as to provide selective horizontal, vertical and angularity adjustment of a part-engaging contour check pin mounted on the contour check pin support assembly.

Abstract: The present invention includes a bushing indexing tool having an aperture in its upper surface which may be reproducibly located around a rotatable caster and camber adjustment offset bushing. A scale disposed around the aperture indicates the angular position of the bushing with respect to the steering structure. The invention also includes a data base to predetermine the desired rotational angular setting of a particular bushing in order to correct caster and camber.

Abstract: A method of reducing residual moisture on caster rolls resulting from the application of a water based release agent or lubricant comprises placing a controllable heat source in close proximity to the top and bottom roll of the caster to evaporate the residual moisture from the roll surface.

Abstract: A method and apparatus for heating fibrous mineral insulation material comprises an oven divided into zones, a conveyor for carrying the insulation material through the oven, means for directing hot gases into contact with the insulation material in the first oven zone, first heating means for heating the hot gases, and second heating means, distinct from the first heating means and positioned upstream from the first oven zone for heating the conveyor.

Abstract: The invention relates to a continuous dryer for veneer. In addition to terature sensors near the inlet and middle zones to determine heat demand and to control heat input in these zones, the dryer also has an infrared detector at the exit end to determine surface temperature and thus to determine residual moisture of the veneer. The signal from this infrared detector is processed to give a control signal for blowers in the drying zones near the exit. By this means, more precise and reliable control in final moisture is achieved. Variations in dryer load, initial moisture, wood density, and sheet thickness can be better tolerated.

Abstract: An apparatus for drying resinous material includes a reaction vessel and a pair of counter-rotating hollow shafts disposed in the vessel. Each of the shafts supports a plurality of blades for stirring the resinous material to be dried in the vessel. A flow of hot gas is continuously supplied through hollow shafts into the blades and released into a reaction vessel through a plurality of apertures in the blades when the blades are in contact with the resinous material.

Abstract: A footwear includes a ventilating and massaging insole having a plurality of upper beads protruding upwardly to touch a wearer's foot and a plurality of lower beads protruding downwardly to ride on a footwear sole so that upon a dpression of a wearer's foot on the insole, an air flow will be pumped through holes each hole formed between each upper bead and each lower bead for ventilating the wearer's foot and for massaging the same.

Abstract: A shoe foundation in which a shoe support is formed by several superimposed layers mutually connected to one another includes a base layer of rubber-bound cork, an elastic support layer of foamed material disposed on the base layer, and a cover layer of leather or the like disposed on the support layer, and wherein the layers are interconnected into a unit free of any adhesive means.