Abstract: A process for drawing wire employing a lubricant composed of perfluorocarbon compounds having the general formula C.sub.n F.sub.2n+2. Such fully fluorinated carbon compounds exhibit a very high degree of thermal and chemical stability, due to the strength of the carbon-fluorine bond. Further, because the compounds are fully fluorinated, and therefore do not contain chlorine and bromine, they have zero ozone depletion potential (ODP). Further, because the PFCs are photochemically non-reactive in the atmosphere, they are not precursors to photochemical smog and are exempt from the federal volatile organic compound (VOC) definition.

Abstract: A reducible glass lubricant on a metal workpiece provides a duplex film during hot working of the workpiece. A silicate glass powder which contains from about 3 to 50 mole percent of an oxide of bismuth, tin or copper is used for the reducible glass lubricant. During preheating in a preheat furnace the glass lubricant is reduced to the duplex glass film.

Abstract: There is disclosed herein an apparatus for manufacturing a manifold for a heat exchanger. The apparatus includes a mechanism for forming a generally planar sheet of material into a generally cylindrical member having a seam along the longitudinal length thereof. The apparatus further includes a tool for forming a plurality of tube receiving slots in the cylindrical member and a device for applying a pressure against the seam so as to flatten the seam to provide good sealing contact at the seam.

Abstract: In a method of thread rolling a screw shaft, an inclining portion 1c is provided between a machining portion 1a of a screw shaft 1 and a non-machining portion 1b thereof as well as a taper portion 2b is formed to screw groove forming dies 2, by which a machining load concentrating at the thread rolling portion on the end of the dies adjacent a chuck can be reduced. With this method, the screw shaft can be thread rolled to have straightness of high quality.

Abstract: A method of bending extruded shapes of the present invention controls a bending radius and a bending angle in accordance with a moving distance of a movable bending die. In the bending process, hardness of an extruded shape to be processed is measured and converted into proof stress, and the bending condition for compensating the springback is determined. A correction coefficient C showing a ratio of a practical value of the moving distance and a theoretical value of the moving distance in a case of no spring-back occurring is defined by a function of Young's modulus E, geometrical coefficient Z, bending radius R and proof stress .sigma..sub.0.2 for the extruded shape to be processed.

Abstract: A production plant for producing hot-rolled flat products includes a rolling train composed of a plurality of roll stands, a run-out table with devices for cooling the hot strip, and with subsequently arranged coiling machines for coiling the strip. At least the first roll stand of the rolling train is a reversing stand. At least one reeling furnace each is arranged in front of and following the reversing stand. A controllable cooling unit is provided between the reversing stand and the reeling furnace in front of the reversing stand.

Abstract: A roll stand for a rolling mill has a housing with a through opening. The housing rotatably supports a pair of roll shafts, at least one of which is journalled for rotation in the eccentric bores of interconnected sleeves. The roll shafts carry work rolls positioned in the through opening to define a roll pass therebetween. An adjustment mechanism is axially engageable with one of the interconnected sleeves to rotate both sleeves and thereby adjust the parting between the work rolls. The adjustment mechanism is contained in a module which is separably connected to the housing.

Abstract: An apparatus for guiding various sized round steel bars to calibers of rolls while stably holding the round steel bar. The round steel bar can be securely prevented from being twisted with a small amount of a holding force, so that a product with a desirable and accurate dimension can be manufactured. The guide apparatus comprises guide rollers installed at the inlet of at least one of a plurality of multi-roll sizing mills, each stand of which is composed of at least three rolls disposed in a line. The method of guiding the round steel bars comprises a step of elastically holding the free or unrolled surface portion of the round steel bar with a press force in the range of approximately 100 to 500 kg. With the round steel bar guide method and apparatus, a round steel bar is pressed and elastically held on the free surface of the guide apparatus.

Abstract: An apparatus for bending metal sheet comprises a frame (1), a stationary lower beam (2) with a lower clamp (5) and a movable upper beam (3) with an upper clamp (6). The clamps each have a clamping face for clamping a metal sheet in a working position. The apparatus further comprises a lower bending beam (13) and/or an upper bending beam (14) for bending upwardly or downwardly, respectively, a clamped metal sheet. At both sides the bending beam(s) is/are supported in the frame rotatably around an axis and independent of the upper and/or lower beam. The body of the lower or upper bending beam (13, 14) in a working starting position extends substantially perpendicular to the clamping face and the lower and upper clamps (5, 6) determine in cross-section in the working position a V-shape, the apex of which is directed towards the axis (15, 16) of the bending beam being in the working position.

Abstract: A sheet bending brake and stabilizing assembly wherein the sheet bending brake alone is constructed and arranged such that when a workpiece is clamped for bending when a person stands on the floor facing the handle means and the handle means is grasped and raised in a direction away from the person in order to move the handle means and raise the handles means, forces occur which prevent the handle means from moving sufficiently to produce a predetermined bend and the forces causes the entire sheet bending brake to tip away from the person about the portions of the legs which project outwardly from said bending brake and thus prevent the movement of the bending member relative to the first member and prevent bending of the workpiece. The stabilizing assembly for counteracting such forces on the sheet bending brake comprises transversely spaced rails receiving at least a portion of the ends of the leg assemblies.

Abstract: An installation apparatus for an expansible anchor has a clamping piston guided in an expansion piston, both of which are perated by compressed air. The clamping piston has a clamping cone for a collet chuck. It slides on the collet chuck, which is fixed in the housing, and clamps a shank of the expansible anchor. The expansion piston displaces an expansible sleeve on the shank of the expansible anchor by an expansion plate which is screwed to the expansion piston and has a hole at its center, through which the shank of the expansible anchor projects into the collet chuck. The apparatus has the advantage of a closed force path as the expansible anchor is expanded, so that the anchor does not need to be steadied by a work-piece. In this manner, slabs or tiles having a small residual wall thickness at the bottom of a drilled hole are prevented from being damaged as the expansible anchor is installed.

Abstract: There is disclosed a tool for connecting a cable fitting to the end of a coaxial cable. The tool is made up of one or more dies with a cavity therein, a carrier chuck which is axially spaced from the die surfaces to support the fitting in relation to the end of the cable, and a handle pivotally mounted to cause axial movement of the carrier chuck. The carrier chuck is pushed toward the die surfaces to axially force the fitting into the die cavity to reduce the circumference of one end of the fitting into a generally conical configuration securely engaging the cable. A radial ratchet mechanism on the handle prevents the carrier chuck from moving away from the die until the fitting has been fully and properly secured to the cable. The dies are specially shaped to have a guiding portion which smoothly and consistently guides the fitting into proper relation to the dies, and a stop limiting portion to prevent the fitting from being forced too far into the die.

Abstract: A throttle valve switch unit for use with a throttle valve situated in an internal combustion engine. A mobile contact is drivingly connected to the throttle valve for movement with rotation of the throttle valve. The mobile contact is engageable with at least two fixed contacts. The first fixed contact is placed for engagement with the mobile contact when the throttle valve occupies a first predetermined position. The second fixed contact is placed for engagement with the mobile contact when the throttle valve occupies a second predetermined position. The first fixed contact is connected through a first resistance element to one of a first terminal for connection to the ground and a second terminal for connection with a source, of voltage. The second fixed contact is connected to the one terminal through a second resistance element having a resistance value different from that of the first resistance element. The mobile contact is connected to the other terminal through a third resistance element.

Abstract: In a valve used in a nuclear power plant, a valve body from which a valve stem projects upwards is connected with a valve drive device for driving the valve stem by a hollow cylinder which is provided concentrically with the valve stem. On the hollow cylinder, strain gauges are attached to detect both torque and thrust, thereby detecting load exactly.

Abstract: The determining and/or monitoring of a predetermined level of material in a container is implemented with the help of a level sensor having a mechanical oscillatory structure, an electromechanical excitation transducer and an electromechanical reception transducer. The reception transducer is connected to the input of an amplifier circuit, to the output of which the excitation transducer is connected, so that the mechanical oscillatory structure is excited to oscillate at its self-resonant frequency. The mechanical oscillatory structure is mounted at the height of the predetermined level of material in such a way that it comes into contact with this material when said material reaches the predetermined level, which causes the self-resonant frequency to change. The change in the self-resonant frequency is detected by an evaluation circuit connected to the output of the amplifier circuit.

Abstract: A liquid level monitor uses a tube to confine a float to a vertical path with a canister containing a lower liquid and an upper liquid which meet at a liquid boundary, the level of which is to be monitored. Light from a light-emitting diode is conveyed to a vertical position of the tube by an optical fiber. A second optical fiber is arranged in a diametrically opposed position of the tube to detect light transmitted across the tube from the first optical fiber. The float is more transmissive than either liquid. When the level of the boundary falls to the level of the optical fibers, received light increases. The second optical fiber conveys this return light to a photodetector, the output of which can be used to trigger an alarm indicating that the boundary level is low.

Abstract: In one embodiment of the present invention, a fluid level sensor includes a resistive element and a float coupled to a contact. The float moves in response to the fluid level, causing the contact to follow a path on the resistive element. The resistive element includes a layer of resistive material disposed on an insulating substrate. The resistive element also includes a layer of conductive material disposed on the layer of resistive material. The conductive material is disposed in segments along the path followed by the contact. This embodiment of the present invention provides a high-durability fluid level sensor which further provides low electrical noise.

Abstract: A magnetic float assembly is provided, comprising (i) a generally cylindrical paramagnetic (e.g. stainless steel) float enclosure having first and second closed end portions located at opposite ends of a longitudinal axis running the length thereof, and having a generally cylindrical interior surface located between the end portions, (ii) a first annular magnet disposed within the float enclosure at a first location along the longitudinal axis and having an outer surface which substantially corresponds to the generally cylindrical interior surface, and (iii) and a second annular magnet disposed within the float enclosure at a second location along the longitudinal axis and having an outer surface which substantially corresponds to the generally cylindrical interior surface. The first and second annular magnets are separated by a paramagnetic (e.g. aluminum or titanium) spacer.

Abstract: A float device is disclosed with an improved external surface having an outwardly concave curvature and a plurality of elongated grooves spirally formed on the concave surface. The concave surface provides improved clearance between the float device and the walls of the pipe that it is disposed in. Therefore, the float device is less subject to being lodged or stuck especially in highly viscous liquids. The spiral grooves provide additional passageway and stability by imparting rotational torque to the floating device when measuring flow rates in moving fluids in pipes. In another embodiment, the float device is annular in shape having an inner surface with a curvature and spiral grooves. Same improved effects are obtained as the float device rides up and down a column like a collar in measuring the fluid level or fluid flow rates.

Abstract: An internal gear of a planetary gear reduction mechanism and a clutch outer member of a one-way clutch are formed integrally with a cylindrical rotary member extending axially. The rear end of the cylindrical rotary member is formed as the internal gear, while the front end thereof is formed as the clutch outer member. A boss portion or a centering portion is formed integral with the cylindrical rotary member between the internal gear and the clutch outer member. The inner peripheral surface of the boss portion slidably engages the peripheral surface of a planet carrier or a flange formed at the rear end of a drive shaft. In this manner, the axis of the cylindrical rotary member aligns coaxially with the drive shaft.

Abstract: A starter motor attachment angle adjusting method and apparatus which enable a starter motor to be attached to an internal combustion engine in a variety of rotational positions are disclosed. The apparatus includes an adaptive ring with a plurality of threaded position defining holes, and an adapter with a plurality of holes by which the adapter is securely connected to the adaptive ring by bolts. The position defining holes in the adaptive ring allow the adapter to be rotationally repositioned with respect to the adaptive ring. The adaptive ring is connected to the starter motor and the adapter is connected to the engine. Hence, the starter can be attached to the engine in a variety of rotational positions. Further, the apparatus allows rotational repositioning without interfering with transverse securing bolts which connect the adapter to the engine. Alternatively, the adaptive ring has a polygonal outer edge which interlocks in a plurality of rotational positions with a recess formed in the adapter.

Abstract: A compact manual transaxle includes an input shaft having four fixed input gears, a first intermediate shaft rotatably supporting three speed gears meshing with three of the input gears, a second intermediate shaft rotatably supporting a pair of speed gears meshed with two of the input gears and a reverse gear meshed with a speed gear on the first intermediate shaft, and a differential. One speed gear on each of the intermediate shafts meshes with a common input gear. A transfer gear on each intermediate shaft is meshed with a final drive gear fixed to the differential. The transaxle further includes a pair of synchronizer clutches for establishing three forward gears by selectively coupling the three speed gears to the first intermediate shaft and a pair of synchronizer clutches for establishing two forward gears and the reverse gear by selectively coupling the speed gears and reverse gear to the second intermediate shaft.

Abstract: The invention relates to a powershiftable multi-ratio reversing gear, especially for use in building machines. The clutches (17, 18, 23 and 26) are fitted between a fixed and a loose pinion. The loose pinions, which can rotate at relatively high speeds, are connected to the inner plates of a set of plates (39). The outer plates are fitted in the clutch housing of each of the clutches. This provides advantages for hydraulic operation of the clutches.

Abstract: A transmission shifting mechanism (10) and position sensor assembly. The shifting mechanism includes a member (32) of known flux-conducting or flux-insulating properties movable therewith, which will variably extend (42, 44, 46) into an electric coil (36), which is periodically charged and then allowed to discharge. The rate of discharge is variable with the position of the member in the coil and, thus, provides a signal indicative to mechanism condition (H, N, L).

Abstract: A device for mechanically disengaging and re-engaging a driven axle from a hydraulic transmission allows the driven axle to "free wheel" independently. In normal operation, a set of internal splines on an end of a rotor is engaged with splining on an end of a hollow coaxial drive train shaft, the rotor and drive train shaft held in rotational engagement by the biasing force of a spring. A pin, positioned coaxially within the hollow center of the drive train shaft and having one end bearing upon the rotor, can be externally moved to overcome the biasing force and disengage the rotor from the drive train shaft. Once the external force moving the spring is removed, the set of internal splines and splines are re-engaged.

Abstract: A gear mechanism in which the backlash between bevel gears can be easily adjusted is provided. The gear mechanism has first and second bevel gears which engage with each other; a supporting member, including first and second threaded portions, for the first and second bevel gears, and first and second bearings for rotatably supporting the first and second bevel gears on the supporting member. The first and second bearing include cylindrical members with threaded portions for engagement with the first and second threaded portions of the supporting member.

Abstract: The locking device for locking of two relative to each other longitudinally moveable elements comprises an electromagnet including a magnetic yoke, an operating winding and a magnet armature. The operating winding and magnetic yoke are positionally fixed on the first element, while the magnet armature is fixed on the second element in respect to the longitudinal movement direction X. The magnet armature presses with one of its walls via a spring device against an opposing wall of the magnetic yoke. The walls of the magnet armature and magnetic yoke which lie opposed to each other are provided with an at least approximately form fitting register contour, so that magnet armature and magnetic yoke can be held in a locked position with respect to each other. For locking, the electromagnet is activated in the register position. Upon application of a predetermined amount of force in the longitudinal direction upon the first or second element the locking position can be release or disengaged.

Abstract: A gearshift device for gearshift actuation of multi-speed transmissions of vehicles is provided with at least one gearshift rod situated in the transmission housing and movable in substantially parallel direction to the wheel axis. Coupling means situated on said gearshift rod join the gearshift rod with gearshift forks or levers. The gearshift forks (13) or levers (9) are retained in the neutral position relative to the gearshift rod (2) in the transmission housing (1) by retaining means, the gearshift rod (2) being axially movable relative to the gearshift levers (9) or forks (13) and for shifting gears a correspondingly selected coupling means (3) may be joined by a driving device (6) to the gearshift rod (2) in a rigid manner at least in axial direction.

Abstract: An engine over-revolution preventive system utilized with a manual shift select lever assembly provides a shift select lever; a selecting device rotated by a selecting action of the shift select lever; and a control device for allowing the shift select lever to conduct shifting operations only by controlling the selecting device according to the present vehicle speed so as to prevent skip shifting by over-revolution, occurring when a vehicle is travelling at high speeds.

Abstract: An articulated telescopic boom assembly for a lifting device includes a first elongated boom having a central longitudinal axis and an opening in one end; a second elongated boom having a first end normally telescopically received by and extensible from the first boom opening, the first end having at least one elongated pivot guide slot therein having a central longitudinal axis with an open end remote from the first end and a closed end proximate to the first end; and a slide-through knuckle having a housing with an opening therein for receiving the second boom during extension and retraction thereof. The housing is pivotally connected to the first boom by a pair of opposing elongated pins which define a pivot axis. The central longitudinal axis of the pivot guide slot is offset from and perpendicular to the pivot axis such that when the closed end of the guide slot is registered with the pivot pins, the second boom is pivotable.

Abstract: Steering column for a motor vehicle and comprising a body (1), a fixed portion (2) rigidly linked to the frame of the vehicle and a mobile portion (3) rigidly linked to the body (1). The column also comprises a fixed notched element (70) integral with a bracket (21) of the fixed portion (2), a mobile notched element (71) connected to the mobile portion (3), and fixing elements (51, 52, 53, 54, 55) making it possible to render integral the mobile (3) and fixed (2) portions in a locked position in which the notches (80, 90) of the two notched elements (70, 71) cooperate by shape mating. An elastic device (72) is provided between the fixed (70) and mobile (71) notched elements, causing the elements (70, 71) to be moved apart from each other, when the fixing elements (51, 52, 53, 54, 55) are inactivated and thus allowing to unlock the link between the fixed (2) and mobile (3) portions.

Abstract: Apparatus for releasably locking a tilt steering wheel assembly in adjusted position comprises a bracket having a pair of spaced-apart plates affixed to the jacket of the steering shaft, and a pawl between the plates pivoted to the steering wheel assembly. Each plate has a hole and the holes are aligned. The pawl has a series of spaced holes. The pawl has a cam track. A cam on the bracket is engageable with the cam track to cause the pawl holes to align successively with the bracket holes when the steering wheel assembly is pivoted to various different positions. A lock pin is engageable in the aligned bracket and pawl holes to lock the steering wheel assembly in a desired position of adjustment.

Abstract: A winding rod which has an elongated part disposed substantially perpendicularly to its longitudinal axis and being rotatable about the axis, an annular eyelet having a curved inner face partially surrounding the rotatable part that has an enlarged portion having an outer face curved complimentarily to the inner face within at least a section for cooperating with the outer face and being substantially coaxially disposed within the eyelet, the inner face being adapted to accommodate the outer face therein; the annular eyelet that has a circular or oval cross-section, curved suitably convex opposed inner faces at each side of the eyelet and tapering in the direction of each other, and a central aperture between the opposed inner faces.

Abstract: A bicycle handlebar stabilizer is attachable to a bicycle, the bicycle including a head tube and a set of handlebars projecting from a stem, with the stem mounted to the head tube at a pivot point to be pivotable with respect to the head tube. The bicycle handlebar stabilizer is comprised of a first clamp attachable to the stem of the bicycle above the pivot point, a bracket pivotally attached to the first clamp, a cam follower attached to a distal end of the bracket, and a second clamp having a surface and a notch in the surface that is attachable to the head tube of the bicycle below the pivot point. The bracket is pivotable between a first position with the cam follower engaged with the notch in the surface of the second clamp, and a second position with the cam follower and the notch disengaged.

Abstract: A removable steering wheel cover 10 is provided which can be securely attached surrounding a steering wheel 2 of a vehicle. The steering wheel cover 10 is formed from an inner layer 30 and an outer layer 20 both formed from flexible fabric and with a core 40 of foam material interposed there between. A first elastic loop 50 and second loop 60 are oriented within a forward casing 25 and a rearward casing 27, respectively, within the steering wheel cover 10. A plurality of stationary tabs 70 are secured to the inner layer 30. A plurality of pivoting tabs 80 are oriented adjacent the forward casing 25 in a location such that they can be folded back onto the stationary tab 70 with the pivoting tabs 80 attaching to the stationary tabs 70. The pivoting tabs 80 overlap the stationary tabs 70 in a manner causing the forward casing 25 and rearward casing 27 to abut each other and to cause the steering wheel cover 10 to completely surround the steering wheel 2.

Abstract: In a mechanical device for changing the phase relationship between the engine shaft and a camshaft of an internal combustion engine, in which the phase change is achieved by a change in the angular position of a body kinematically connected to the engine shaft relative to that of a shaft kinematically connected to the camshaft by the movement of a piston and of an auxiliary annular element which are spaced apart axially and are interposed between the body and the shaft to which they are coupled by intermeshing teeth, a stop is provided for limiting the axial travel of the auxiliary annular element, advantageously stopping the piston owing to engagement in the teeth of the shaft and of the body.

Abstract: A power unit for a front drive vehicle having a horizontally opposed engine mounted longitudinally, a clutch, a transmission and a differential, in which a differential housing integrally formed with a transmission housing is disposed at a space adjacent to the frontally offset cylinder block of left or right cylinder blocks and a left and right axle shaft is extended from the differential housing respectively. Further, the differential housing is connected by a fastening bolt with a slide bush to a lower case of the engine so as to support the reaction force derived from the axle shafts. The power unit thus constituted offers a short length of a front overhang of the vehicle and the compactness of a power unit.

Abstract: A method of forming a spinner for centrifuging fibers from molten material is disclosed. A dispersion strengthened metal is warm worked at a temperature above the minimum warm working temperature and below the recrystallization temperature of the metal to form a spinner having an annular peripheral wall and a plurality of ribs formed integrally with the peripheral wall and extending radially inwardly therefrom. The spinner is heat treated to recrystallize the metal to a coarse grain structure, and a plurality of fiber-forming orifices are formed in the peripheral wall.

Abstract: A tool is provided which is useful for loosening the locking collars of frangible fasteners which are commonly used in the aerospace industry. The tool includes a socket head having a through socket at one end thereof, an elongated handle having a jaw end forming an arcuate surface, and an assembly pin which extends through aligned handle and socket head apertures to pivotally attach the handle to the socket head. Two sets of gripping teeth are provided within the socket in an adjoining arrangement to one another along a longitudinal axis of the socket. The jaw end of the handle projects into the socket to grasp items therein, such as the narrow wall of a locking collar of a frangible fastener. Preferably, the arcuate surface of the handle forms an involute curve.

Abstract: A monocentric, multivision contact lens having a single optical axis and an anterior side. A first spherical vision surface is disposed on a first portion of the anterior side and has a first radius of curvature and a first center of curvature disposed along the single optical axis. A second spherical vision surface is disposed on a second portion of the anterior side and has a second radius of curvature and a second center of curvature disposed along the single optical axis. A transition surface is disposed intermediate the first portion and the second portion and has a plurality of centers of curvature disposed along the single optical axis. A method of making a monocentric contact lens and a mandrel for mounting a lens on a lathe for producing a monocentric contact lens are disclosed.

Abstract: A metallic tape cutting device is disclosed, including a driving device, a driving force transmitting device for a crank member in a crank motion and a fork member in a fluctuating motion by receiving rotational power from the driving device. A tape transferring device pressurizes a tape material through a link member which receives force from the crank member, at the same time forces the tape material to transfer to the state of pressurization. A tape cutting device receives force from the fork member and cuts the tape material transferred by an ascending and descending motion.

Abstract: An angularly adjustable table saw jig which comprises a base plate having an upper flat surface for supporting a work piece to be cut, a means for slidably attaching the jig to a table cutting tool, an upwardly extending work advancing abutment rotatably connected to the base plate at an axis of rotation for advancing work into cutting engagement with a table cutting blade, and a slot extending generally parallel to a cutting path of the cutting blade for providing clearance for the cutting blade as the jig is advanced into cutting engagement therewith. The jig also includes an elongated guide rail, which is rotatably connected to the base plate, and whose axis of rotation lies in the same plane of the cutting blade.

Abstract: Cutting insert and tool, wherein the tool has a seat formed by at least 190 degrees of a cylindrical seat surface, and the insert has an outwardly projecting region forming a cutting edge and three convex regions simultaneously touching the cylindrical seat surface at three distinct points. Those points form an imaginary triangle with all angles acute. A center of the cylindrical seat surface lies within the imaginary triangle, and a center of gravity of the insert lies outside of the imaginary triangle. The insert can only be removed from the seat after being rotated by a prescribed angle away from its cutting position.

Abstract: A circular saw blade having a plurality of spaced sets of teeth, each set including a first forward ripper tooth and a second rearward cleaner tooth. The top surface of each member of the pair is slanted in an opposite direction, while the ripper tooth of each pair is preferably partially chamfered on its two front edges. Each member of the pair has its two side surfaces tapering inwardly toward its respective rear surface. The cutting face of the ripper tooth is longer than the cutting face of the associated respective cleaner tooth. Each ripper tooth is preferably spaced about 15 degrees around the outer periphery of the blade from the next adjacent ripper tooth, while each associated cleaner tooth is located about 5 degrees behind the respective ripper tooth. In this manner, a single blade may be used as an all-purpose cutting blade to make clean cuts in various media without splintering.

Abstract: An automatic reconfigurable die having an array of knives, each of which is separately pivoted and extended along and about a respective longitudinal axis, to allow a desired contour to be scored and cut from a sheet material, according to a real time computer plan which is controlling the array of knives. The automatic reconfigurable die includes actuators associated with each knife to control, via information associated with a remote computer system, the extension and retraction, and orientation of the knives. The computer selects the appropriate setpoints for each knife in order to match the required shape/pattern of the cut by simple curve fitting methods. In this manner, a selected plurality of the knives in the array are chosen, oriented and extended in real time to score/cut the selected part.

Abstract: It is possible for the present invention to operate with the optimal control to prevent a ram from overshooting in a case that a load acting on the ram is decreasing rapidly, like a stamping machining process. Linking a hydraulic circuit which consists of a hydraulic pump 3 and a hydraulic cylinder 2 to make the ram 1 for the hydraulic press equipment move upward and downward and a full-bridge hydraulic circuit with four proportional sheet valves V1 through V4, the working timings of the proportional sheet valves V1 through V4 are controlled by a NC controller 9. In the normal operation, operating the proportional sheet valves V2 and V3 with the turn-on-off control system and with the meter out control system, oil pressure PU acting on the upper chamber 2U of the hydraulic cylinder 2, driving the ram 1 by the piston 10 moving downward, a work is stamped out. The NC controller 9 detects the running by inertia of the ram 1 in the instance of having stamped out a work in the stamping out machining process.

Abstract: The invention relates to a bellows, in the bellows body of which are provided supporting frames which are welded to the outer pleats of the bellows body. The connection between the outer pleats of the bellows body and the supporting frames is formed by a high-frequency welded joint. The bellows according to the invention can be produced in a particularly economical manner and, if required, the bellows body can also be coated with PVC if the supporting frames--as usual--are produced from rigid PVC.

Abstract: A tandem pneumatic booster having a shell body, the inside of which is divided into two, front and rear, chambers by a center shell. Each chamber includes a negative pressure chamber and a working pressure chamber. A valve body is slidably fitted in the shell body and the center shell with seal members therebetween. The valve body is provided with an air passage for communication between the front and rear working pressure chambers. A valve mechanism is actuated in association with an input shaft to introduce atmospheric air into the front and rear working pressure chambers through the air passage so as to apply thrust to front and rear power pistons. The diaphragm of the front power piston has a bead on an inner periphery thereof. The valve body has a groove on an outer periphery thereof. A portion of the air passage which leads to the front working pressure chamber has a main passage portion extending axially in the valve body, and a bypass extending radially outward from the main passage portion.

Abstract: A device including a first moving part such as a piston (1) and a second moving part such as a connecting rod (2) with a coupling part (4) therebetween. A low-pressure compressible liquid lubricant feed system delivers a liquid into a chamber (10) with a variable volume between the second part and the coupling part, to form a pump supplying the joint interstice (16) to be lubricated, by a one-way connection (13, 15) and a resilient return member (11), wherein the interstice communicates with a cavity (17) with a fixed volume used as a liquid lubricant source. The volume, in relation to the pump displacement, enables a degree of deflection of the pump piston (3) while achieving a sufficiently high pressure and compensating for leakage.

Abstract: A diaphragm assembly has a center disk in which use of a metal member is not required. The center disk comprises first and second center disk members, made of resin, embracing a resin diaphragm between them. The first center disk member has an inwardly directed inner flange on an inner peripheral wall defining a resin charging space, and the second center disk member comprises a resin-molded body, formed by charging a resin, and has an outwardly directed outer flange. A portion of the diaphragm is clamped between the inner flange and the outer flange.