Abstract: A sprayed closed cell foam roof is prepared by applying the foam directly to the roof deck and layering the foam with sufficient gravel to prevent ultraviolet light deterioration of the foam. The roof is devoid of the waterproof layer conventional in foam roofs that leads to leaks and other failures common to such roofs.

Abstract: An insulated roof structure which has improved fire resistant capabilities is formed on building systems structures by mounting a plurality of purlins (12) on inclined metal rafters (11) and supporting fire resistant panels (32) from the purlins (12). A plurality of support beams (25) are attached to the downwardly facing surface (51) of the purlins (12) and support the fire resistant panels (520. The fire resistant panels (52) are mounted to the support beams (25) and arranged in edge-to-edge contact with one another with the side edges (47) and (48) of adjacent fire resistant panels (52) in sealed engagement with one another.

Abstract: A composite beam, pillar or truss comprises polygonal cross-section modular units 11 connected end to end with adjacent units 11 reversed, the units 11 being held together by stringers 12 and end caps 13, and the whole beam being pre-tensioned by tie rods 21 passing through the stringers 12 or by threaded inserts. A connector 110 of cube form comprises face plates 111 having screw threaded connectors for the beams, the face plates being held together by a plurality of internal corners 113 and external corners 114. The beam 10 and connector 110 are apertured to receive services from any direction and can be assembled to form a pre-fabricated building or other structure.

Abstract: A concrete post and panel noise barrier in which the opposed side walls of the post contain vertical grooves for slidably receiving the panels. Each post further contains two parallel rows of vertically disposed reinforcing bars positioned adjacent the front and back walls of the post. The two rows of reinforcing bars are further strengthened by horizontally disposed connector units that include an endless tie rod positioned between the grooves that loops around at least one bar in each row and a pair of stirrup wires that pass around the outside of the rows of reinforcing bars. The ends of each stirrup wire are turned inward about the end bars in the row and are crossed over each other before being brought into engagement with the tie rod.

Abstract: A plurality of clamps arranged in equally spaced relation on an endless track are intermittently advanced at a pitch equal to the distance of each two adjacent clamps. A switch reactive only to the passage of a sufficiently heavy or filled bag which has been filled with an article is disposed downstream of a filling station, one of the stop positions for clamps. When the passage of a bag is not responded by switch, that is, when an empty or unfilled bag has passed near the switch, the particular clamp by which the empty bag is held is caused to pass through the final stop position and, in turn, through the first stop position before it can again reach the filling station, with the empty bag being held by the clamp all the while.

Abstract: An adsorbent packet including a casing of permeable material, adsorbent in the casing, and a sleeve of metal foil fused to a central portion of the casing by ultrasonic welding and having a layer of nylon on the outside thereof.

Abstract: Apparatus for handling and packaging articles such as can ends is capable of receiving a continuous flow of articles and automatically delivering groups of articles of a prescribed number, disposed in a nested condition, to a packaging station. The apparatus comprises a plurality of generally parallel elongate lanes for simultaneously handling articles, one of the lanes being articles to the packaging station. A transport aligned for delivering arrangement linearly advances articles along at least the one aligned lane toward the packaging station. A pick-and-place device is selectively movable between positions in alignment with each of the lanes for selectively transferring articles to the one aligned lane from the other lanes. A control apparatus controls a predetermined sequence of operation of the transport arrangement and of the pick-and-place device for providing a substantially continuous supply of articles to the packaging station.

Abstract: This is a corrective saddle pad for use under a saddle to provide a better fit of the saddle on a horse's back. The pad is in two portions connected by adjustable straps so as to sit on opposite sides of the horse's backbone. It further comprises a pair of washable inner pads and a pair of corrective outer pad releasable attached to one another. The washable inner pads have a layer of neoprene foam rubber in contact with the horse's skin to prevent rubbing and chafing.

Abstract: A carrier for an air rake or leaf blower adjustably secured to a power driven vehicle or garden tractor, said carrier having roller means associated thereon wherefor the same may roll over the terrain, platform means for carrying an independently operable air rake or leaf blower thereon whereby the same is drawn over the terrain by the power driven vehicle and the leaf blower is operative while mounted thereon and may be disassociated therefrom for independent operation.

Abstract: A holding arrangement for a spindle of ring spinning or ring twisting machines. The holding arrangement includes a spindle housing which can be inserted in a receiving bore of a spindle rail and tightened by a ring flange and a nut screwed onto an external thread. The receiving bore includes a guide surface for guiding the spindle housing over only a portion of the length of the receiving bore while permitting tilting of the spindle housing in the receiving bore. Between the spindle rail and the ring flange and/or the nut, an adjusting ring is arranged which can be rotated when the nut is at least loosened. The adjusting ring is constructed as a non-uniform spacing element, by the rotating of which the relative position of the spindle housing and the spindle rail can be adjusted.

Abstract: A maintenance device is provided in a two-for-one twister textile yarn processing machine having a plurality of spindle assembly stations in side-by-side relationship along the length of the machine for processing of yarn at each station as the yarn is fed from yarn supply packages carried by an adapter device and mounted in the spindle assembly, and an overhead conveyor mechanism extending the length of the machine generally above the spindle assembly stations and including spaced-apart downwardly-directed suspension holders for releasably receiving and carrying adapter devices with full yarn supply packages thereon and adapter devices with substantially empty yarn supply packages thereon to and from respective spindle assembly stations.

Abstract: In the case of a spinning machine having a plurality of drafting units arranged next to one another which each comprise a stripping device, a cleaning device for the stripping devices is provided which can be moved along the spinning machine. The cleaning device, in each case, moves the stripping devices from an operating position into a cleaning position, in which the cleaning of the stripping device is carried out.

Abstract: In the case of a false-twisting nozzle for pneumatic false-twist spinning having a nozzle body formed of one or several segments, it is provided that, for the reduction of the cross-section of the outlet opening of the blow duct, at least one part of its interior wall is provided with a coating.

Abstract: A gas turbine engine power unit (10) comprising a gas turbine engine hot gas generator (10a), the exhaust efflux of which drives a turbine (20) having a power output shaft (22). The exhaust efflux from the turbine (20) is directed into a chamber (23) having two outlets (24,25) to atmosphere. The outlets (24,25) are provided with valves (26,28) which are operable to ensure that only one outlet (24,25) is open at a given time. The first outlet (24) contains a heat exchanger (15) whereas the second outlet (25) contains a further turbine (30). The further turbine (30) drives an air compressor (32) the output of which is directed to an air inlet (36) of the gas turbine engine (10a) in order to facilitate a boost in its output power.

Abstract: A blow-off device for a gas turbine bypass engine having a primary air flow path separated from an outer secondary air flow path by a partition includes a plurality of discharge passages passing through the partition from the primary air flow path to the secondary air flow path, each of the discharge passages having a first hinged flap in the outer wall of the primary air flow path, a second hinged flap in the inner wall of the secondary air flow path, and a connecting rod mechanically interlinking the first and second flaps, the connecting rod being hinged at one of its end to the first flap and at its other end to the second flap.

Abstract: A combined turborocket and ramjet propulsion unit comprises an air intake duct, and an air compressor with two counter-rotating rotor stages disposed downstream of the duct in an annular path formed between an outer casing and a central body which is maintained in position relative to the casing by structural arms. The rotor stages of the compressor are driven by a power turbine driven by combustion gases from a gas generator which burns liquid propellants. The power turbine includes two interleaved counter-rotating modules arraanged within the central body in a position longitudinally between the two compressor stages which they drive, and the gas generator is disposed axially within the central body to the rear of the turbine modules, the generator supplying the combustion gases to the turbine in an upstream direction through a central ejection chamber and an annular reversing chamber which redirects the gases rearwards through the turbine.

Abstract: A solid propellant component grain is supported in a combustion chamber. A liquid propellant component container is mounted forward of the combustion chamber. The liquid propellant component is supplied through conduits from the container into the combustion chamber, and ignited to form combustion gas which is discharged out the rear of the combustion chamber to generate thrust for propelling a rocket. A high pressure tank containing a non-flammable gas such as helium is at least partially embedded in the grain. A conduit leads from the tank into the container, such that the high pressure gas pressurizes the container and urges the liquid propellant component to flow from the container into the combustion chamber. The tank provides internal structural support for the grain, with the wall of the combustion chamber constituting a safety barrier in the event of structural failure of the tank after the tank is filled with high pressure gas.

Abstract: To reliably diagnose catalyst degradation in an air fuel ratio control system without being subjected to the influence of engine operating conditions, a front O.sub.2 sensor output VFO and a rear O.sub.2 sensor output VRO are detected on both the upstream and downstream sides of catalytic converter; air fuel ratio feedback correction coefficients .alpha. are determined on the basis of basic feedback control constants P.sub.R,L or i.sub.R,L and correction values PHOS according to rich and lean air fuel ratio conditions; periods T and amplitudes .alpha..sub.R -.alpha..sub.L of the air fuel ratio feedback correction coefficient .alpha.

Abstract: A method of and an apparatus for controlling the air fuel ratio of an internal combustion engine by which the air fuel ratio can be controlled so that the exhaust gas purifying efficiency of a catalytic converter for purifying exhaust gas of the engine may be maximum. In the apparatus, exhaust gas of the engine is first passed through a catalytic converter and then is introduced into an oxygen concentration sensor of the .lambda. type. When the air fuel ratio is compulsorily varied, the compulsorily varied condition of the air fuel ratio such as an average of variations of the air fuel ratio (average air fuel ratio) is corrected in accordance with an output of the oxygen concentration sensor thereby to control the air fuel ratio so that the purifying efficiency of the exhaust gas purifying catalytic converter may be maximum.

Abstract: Heretofore, soot particles are removed from exhaust gases of an internal combustion engine by means of a ceramic filter, which must periodically be replaced, namely, each time it is used up. The new apparatus is to remove soot particles continually from the exhaust gases without diminishing the filtering action. In a two-part casing there are provided for the exhaust gases, in a first casing half with the inlet and in a second casing half with the outlet, a first deflector chamber for the exhaust gases. In the first casing half there is located a quiescent zone for the exhaust gases and--surrounded by the two casing halves--a heating system which is flown through three times by the exhaust gases. The apparatus produces a strong combustion of the soot particles present in the exhaust gases and is not subject to any exhaustion, since it does not store soot particles but burn the same as much as possible.

Abstract: Disclosed is an apparatus for detecting abnormality in a secondary air supplier of an engine. The operational status of the engine is monitored by various sensors. When the engine is in a warmed-up state, an electronic control unit (ECU) disables the secondary air supplier to stop secondary air from being supplied to an exhaust manifold. When the engine is in such an operational status in which the secondary air should be supplied, the secondary air supplier is activated and a fuel supplying means is controlled in such a way that a suction air-fuel ratio is forcibly adjusted to a predetermined high value so as to set an exhaust air-fuel ratio low when the secondary air supplier functions properly and set the exhaust air-fuel ratio high when the secondary air supplier is abnormal. When the exhaust air-fuel ratio is detected to be high, the ECU judges the secondary air supplier as abnormal and executes necessary processing, such as outputting an abnormality judgment signal to an external warning device.

Abstract: A continuously variable hydraulic transmission operatively interconnects a transmission mechanism and a clutch mechanism. The hydraulic transmission includes an oil pump having an inlet port and an outlet port and a transmission ratio control member such as a swash plate which is displaceable for varying the transmission ratio between a higher-speed position, a lower-speed position, and a neutral position, an oil motor having an inlet port and an outlet port and drivable by the oil pump, a first oil passage hydraulically interconnecting the outlet port of the oil pump and the inlet port of the oil motor, a second oil passage hydraulically interconnecting the inlet port of the oil pump and the outlet port of the oil motor, a housing accommodating the oil pump, the oil motor, the first oil passage, and the second oil passage, and an oil passage control unit for selectively bringing the first oil passage into and out of hydraulic communication with the second oil passage.

Abstract: A turbocompound engine having a power turbine bypass valve and a control module for controlling opening and closing of the bypass valve. The turbocompound engine is capable of operating in a compression braking mode, and the control module opens the bypass valve in response to actuation of the compression braking, resulting in improved braking.

Abstract: The powder actuated tool has a modular construction which comprises: a firing pin module; a pistol grip module; and a fastener driving module. The firing pin module and the fastener driving module are readily detachable from the pistol grip module so that if any module is damaged or needs maintenance, it may be readily removed from the rest of the tool and replaced at low cost and at no inconvenience to the user. The firing pin module includes a coherent breech assembly which is readily removable from, and securely attachable to the pistol grip module, which breech assembly comprises: a firing pin disposed in the breech assembly within a breech block; and cocking means extending from the breech assembly through the pistol grip module to engage the fastener driving module.

Abstract: Condenser fluid comprising vaporized working fluid and non-condensable gases is treated by extracting fluid from the condenser and pressuring the fluid to liquefy the vaporized working fluid therein in such a way that the noncondensable gases are separated from the working fluid and can be vented from the extracted fluid.

Abstract: Manifold head effects at low fuel flows in a fuel injected air breathing turbine are minimized by utilizing fuel injectors having fuel injecting tubes (66) with open ends (70) for fuel injection and provided with elongated capillary tubes (88) upstream thereof and connected to receive fuel from a fuel manifold (48) having an inlet (56) while uniform, relatively low velocity fuel exit flow from the ends (70) the injecting tubes (66) is achieved through the use of internal impingement surfaces (96, 102, 106, 110, 124). Pressure loss differences contributing to nonuniform fuel flow and resulting from some fuel injecting tubes (66) be more distant from the manifold inlet (56) are minimized by shortening the length of the capillary tubes (88) furthest from the manifold inlet (56).

Abstract: A Joule-Thomson cryogenic refrigeration system capable of achieving high temperature stabilities in the presence of varying temperature, atmospheric pressure, and heat load is provided. The Joule-Thomson cryogenic refrigeration system includes a demand-flow Joule-Thomson expansion valve disposed in a cryostat of the refrigeration system. The expansion valve has an adjustable orifice that controls the flow of compressed gas therethrough and induces cooling and partial liquefaction of the gas. A recuperative heat exchanger is disposed in the cryostat and coupled to the expansion valve. A thermostatically self-regulating mechanism is disposed in the cryostat and coupled to the J-T expansion valve. The thermostatically self-regulating mechanism automatically adjusts the cross-sectional area of the adjustable valve orifice in response to environmental temperature changes and changes in power dissipated at a cold head.

Abstract: A method of locating a limit switch (10) on a compressor (12) utilizes thermography for determining the optimum location thereof. A thermograph is produced for normal and abnormal operating modes of the compressor (12). High temperature gradients in the thermograph indicate high rates of temperature increases during compressor failure modes for selecting an optimum location for the limit switch. A bimetal switch (10) is utilized to establish a cut-out temperature for preventing operation of the compressor (12) and a cut-in temperature lower than the cut-out temperature for automatically closing to resume operation of the compressor (12) when returned to normal temperatures.

Abstract: An ice sensing assembly for an ice making apparatus having a mold for making ice pieces and a bin for collecting ice pieces from the ice making apparatus, the ice sensing member including a bale and a triangularly shaped plastic member affixed to said bale to engage the ice pieces and having a minimal thickness and converging edges terminating at an apex for sensing the level of ice pieces in the bin.

Abstract: A freeze-thaw air dryer utilizes a heat pump to remove moisture from air by cooling the air to below the freezing point of water, causing the water to pass directly from the vapor state to the solid state and thereby to be removed from the flow of air. The vapor frozen on the cold surfaces is periodically thawed by either turning off or reversing the heat pump, and the condensate and thawed ice are automatically drained out of the device without interruption of the airflow. The geometry of the cold surfaces and the generally centripetal airflow path are designed expressly to cause a buildup of ice without impairing efficiency or blocking the airflow.

Abstract: A flexible tubular item having an outer flexible section of hollow tubing with a first end and a second end, a flexible wire positioned within the hollow tubing, a flexible paint layer covering an exterior surface of the flexible wire, and a viscous liquid contained within the hollow tubing. The hollow tubing is a transparent vinyl tube. The flexible wire is copper wire having a bend resistance greater than the bend resistance of the hollow tubing. The liquid is mineral oil filling the area around the flexible wire within the hollow tubing. Ball members are affixed in liquid-tight relationship within the first and second ends of the hollow tubing. These ball members are acrylic spheres having a diameter greater than the interior diameter of the hollow tubing.

Abstract: A device adapted to be vertically associated with an earring jacket has an elongated housing that pivotably holds a post for a pierced ear, and slidably holds an elongated bar having an apertured upper extremity. The post can be pivoted downwardly to a storage state and the bar can be raised to permit penetration of the upper extemity of the bar by a stud-type earring.

Abstract: An improved male-female type connector assembly. A male connector includes hook elements while a female connector includes a composite of a flexible substrate having a knit structure with loops produced about at least a portion of same. Loop weight, loop density and/or configuration of the hook elements may be varied to produce an assembly that is intended for repetitive connective, disconnect operations, or a semi-permanent structural connection.

Abstract: A knit fabric is made of a combination of a corespun yarn having a core of a resilient continuous filament yarn covered by a cotton fiber and a cotton yarn. These yarns are knit together in such a manner that one side of the knit fabric exposes only one of the yarns while the other side of the knit fabric exposes the knit combination of both yarns. The knit fabric is easily and comfortably manipulated while possessing improved mechanical properties such as strength, durability, and stretch and recovery.

Abstract: A washing machine includes a mid-level pivot and traverse suspension arrangement and a modular assembly. A support having a central aperture is spaced from the washing machine base by a plurality of upstanding legs. The modular assembly, including a drain tub, a drive shaft, and a transmission, is disposed on the support with the drive shaft and the transmission extending through the central aperture of the support. The modular assembly is a disengageable intact from the support with the transmission and the drive shaft passing through the central aperture of the support.

Abstract: A bleaching kier comprising a compartment of container into and out of which flaccid material is conveyed, in combination with (a) a control device for controlling the amount of elongated cloth being conveyed to the compartment, (b) a device for conveying the elongated cloth along a predetermined path without imparting a crease thereto, and (c) a device for removing a large portion of bleaching liquor from the elongated cloth prior to it being conveyed to a washer. The control device includes a drum with a plurality of upstanding members on its outer surface for engaging and conveying the elongated cloth to the compartment and a "U" shaped member, adapted to be moved from a first position, where the elongated cloth is in contact with the upstanding members, to a second position where the elongated cloth is not in contact therewith.

Abstract: A dyeing padder for the dyeing of warp yarn includes a dyeing vat having at least two sectional and mutually connected vat chambers both used in a dyeing process with indigo dyes or alternatively, only one of the sectional vats is used, a displacement body introduced in the dyeing vats for reducing a volume of a dye bath having a continuous circulation thereof at a constant level.

Abstract: The single-pass hide skiving machine includes a supporting structure (1) which rotatably supports a motorized cylinder (2). A first oscillating frame (3) rotatably supports a support cylinder (4) which is arrangeable in a working position below and slightly forward of the motorized cylinder. A second oscillating frame (8) rotatably supports a first bladed cylinder (9) which is arrangeable in a working position slightly rearward of the support cylinder. Arranged above and slightly forward of the motorized cylinder is a second bladed cylinder (31). Additionally, a contrast cylinder (18), kinematically connected to the support cylinder (4) by rollers (17), is movable into a working position between the support cylinder (4) and the second bladed cylinder (31). A hide is initially fed through the motorized cylinder and support cylinder and then through the first bladed cylinder (9) and the support cylinder (4) to effect the skiving.

Abstract: A locking apparatus for use with surfboards and other articles which attaches to a cross bar on the article. The locking apparatus includes a member which surrounds the cross bar and a means for locking and unlocking the member to the cross bar thereby preventing unauthorized persons from removing the member from the cross bar. Used with a conventional surfboard, the lock apparatus advantageously attaches to an existing leash plug cross bar, requiring no modification or retrofit to the surfboard, and attaches without removal of a leash cord which likewise typically attaches to the cross bar. Further, a cable secures to the locking apparatus and is looped around or affixes to a generally stationary structure, such as an automobile surfboard roof rack, bicycle rack, post, etc., in order that the article cannot be moved without first unlocking the member.

Abstract: A combination padlock with re-setting mechanism, which comprises a main shaft having a shaft end block on one end and a shaft portion on the other end thereof; the shaft portion has an axial hole with cascade-shaped hole therein and a long slot on the top side thereof for receiving a positioning rod and a locking bar; a spring is mounted between the locking tumbler and the positioning rod; springs are also mounted between the locking bar and the positioning rod. The shaft portion is mounted around with several clutch rings and resilient partition rings. After the main shaft and the fixed cap are assembled together, the positioning rod is fixed in place with a fixing pin; the fixed cap has a shackle hole for receiving one end of a shackle. The outer surface of the main shaft is mounted with several wheel members; the shaft end block of the main shaft and the movable cap are detachable so as to facilitate changing the combination numbers by removing all the wheel members to set new combination numbers thereon.

Abstract: A steering lock with a lock body having an attached extensible member for adjusting the distance between two locking rods which are connected in parallel through a telescopic tube to form a shackle. The shackle can be extended when clearance is required, and is coupled with a pair of hook-shaped fastening rods which are connected in parallel through another telescopic tube for fastening to the steering wheel. When a lock barrel of the lock body is rotated to a locking position, the first and second latches inside the lock body lock up the locking bars and the extensible member. Two protective cover boards are bilaterally attached to the lock body to prevent insertion of a tool to cut the second latch and prevent injury to fingers during the locking and unlocking operation.

Abstract: An anti-theft seal for commercial articles having rod-like portions such as spectacles includes a box-like body for containing an electronic indication component. The body has a tab which is constituted by three consecutive elements which are articulated by reducing their cross section so that they can fold back onto the body and define a containment seat for a rod-like element to be secured. A slider engages, in a non-reversible manner, a guide which is rigidly associated with the box-like body; the slider has a mushroom-shaped head which is suitable for inserting, by translatory motion, in a seat of the tab so as to lock it in folded position.

Abstract: A key lock snap assembly for securing fabric covers to a supporting structure has a base member to be mounted on a supporting structure and having a post with a collar intermediate its length. A key lock snap engaged on the base member has a body with a flange adapted to engage with a fabric cover and an upstanding generally cylindrical barrel providing a top wall with a key-receiving aperture therein and a downwardly opening generally cylindrical cavity. Seated in the cavity are a key code having a key passage, a locking element resiliently deflectable about the collar of the post and engageable with the post, and a rotatable lock in the barrel which will engage the locking element in its position engaging the post below the collar, and this precludes deflection of the locking element about the collar. A key is insertable into the aperture of the top wall of the body and through the aperture of code element into the lock to effect its rotation.

Abstract: A cylinder lock having a removable barrel that includes a control tumbler. The barrel is retained in the housing of the lock by a nib that is formed on either the barrel or the interior of the housing. A longitudinal nib slot is formed on the other of either the barrel or the interior of the housing. The nib and the nib slot are aligned with one another only when the barrel is in an unlocking position for permitting the barrel to be removed from the housing. In this manner, the barrel may be removed from the housing only when both the barrel is in the unlocked position and when a special control key has been inserted into the barrel for withdrawing the control tumbler into the barrel.

Abstract: Method and system for high-speed rolling at about 120 to 140 meters per second and more for rolled stock having a round section and a diameter of 5.5 to 6.5/7 mm. or equivalent, the high-speed rolling being carried out with a system comprising at least one rolling assembly (11) and a coil-forming headstock (12), the rolling assembly (11) including a plurality of pairs of rolls with their axes placed alternately at about 90.degree.

Abstract: A rolling mill for rolling metal strip moving in a horizontal rolling direction, has work rolls which engage the strip and are supported vertically by backup rolls through which drive is applied. The work rolls are supported in the horizontal rolling direction by support rollers contacting them at locations confined to intermediate regions between the work regions and bearings. The work rolls are shiftable in the horizontal rolling direction. To provide control of the horizontal forces during rolling, there are position control means for the support rollers operable to move and locate the support rollers so as to shift the work rolls to a predetermined location at which the vertical axial plane of the work rolls is offset in the horizontal rolling direction from the vertical axial plane of the backup rolls. The support rollers maintain the work rolls at the predetermined location during rolling.

Abstract: Draw processing flat-rolled sheet metal substrate preselectively precoated on each surface with organic coating and draw lubricant into one-piece can bodies ready for assembly into sanitary packs free of any requirement for washing, organic coating or repair of organic coating after fabrication and before such direct usage. Selective organic precoating includes embodying a blooming compound which is made available as draw lubricant responsive to heat and/or pressure of draw forming; also, surface application of a draw lubricant after curing of the organic coating. Combined lubricant on each surface is verified before start of fabricating. Draw-forming of tensile strength sheet metal is controlled over side wall height by clamping solely between planar clamping surfaces and by interruption of draw to establish a flange at the open end of cup-shaped work product.

Abstract: The subject of the present invention is a method for forming a sheet-metal blank (1), in particular in order to make a cathode ray tube mask, on a press, according to which the central part (1a) of the sheet-metal blank (1) is formed with a specified curvature under the effect of a punch (20) which deforms, in a mould (12), the upper die part (14), the load exerted on the punch (20) being distributed over the entire surface of the base (24) of the punch (20), and according to which, after the curving of the central part of the sheet-metal blank, a mechanical action is exerted on a peripheral forming member (30) so as to apply pressure to a ring (36), the ring (36) is deformed and presses against the free part (1b) of the sheet-metal blank (1) in order first to effect a controlled bending of the said free part, and then the said free part (1b) is applied, still under the action of the ring (36), along the side walls of the punch (20) in order to form the flanged edge.

Abstract: A device for changing the stroke of a caulking machine having a table on which is placed an article having a plurality of rivet shanks, and a rivet head forming tool. The table is adapted to be moved back and forth and right and left to bring the rivet shanks into the position right under the rivet head forming tool one after another. The rivet head forming tool is driven by a motor and moved up and down by a cylinder to form a rivet head at the top of each rivet shank. The device for changing stroke has a plate member movable up and down together with the rivet head forming tool and stopper pins having their top ends secured to the plate member. An annular plate is mounted outside a rotary shaft of the rivet head forming tool so as to be freely rotatable at a predetermined position. A plurality of pins having lengths corresponding to the lengths of the rivet shanks of the article are secured at equal intervals to the annular plate to extend upright.

Abstract: The invention relates to a method for manufacturing metal objects, particularly non-ferrous metal objects, by means of extrusion. According to the invention a casting with a cast structure is conducted at or about ambient temperature to the extrusion device, and the casting is subjected to extrusion, at a reduction ratio of at least 80%, within its recrystallization region. The extrusion is carried out according to the Conform method.