Showing papers on "Stamping published in 1975"

Fabricated clutch pressure plate

Abstract: A fabricated pressure plate for utilization in clutches of all kinds wherein the pressure plate is formed from sheet or roll material by stamping into two or more pieces, which pieces are assembled together and fastened mechanically or by tack-welding to improve the integrity of the final assembled plate.

Luggage shells and process for the manufacture thereof

Abstract: Light weight strong three dimensional luggage shells are produced by heating a glass fiber reinforced thermoplastic sheet containing 5% to 50% by weight glass fibers, and stamping the resultant expanded sheet while still hot between matched male and female cold dies. This is a continuation of application Ser. No. 483,793 , filed June 27, 1974, now abandoned.

Composite ring made of press fitted parts and method of assembling

Abstract: The invention disclosed is a composite ring made of press-fitted parts and method of assembling concentric articles having an interference fit, the inner one of which has a surface of a granular material such as ceramic, the method eliminating the customary heat shrinking step by which the outer one, usually of metal, is heated and expanded over the inner one and then cooled to shrink it tightly over the inner one. According to the method disclosed, the ceramic surface is coated with a polyetetrafluoroethylene lubricant and then pressed into the outer one without the use of heat. A mating ring for rotary mechanical end face seals, wherein the mating ring is formed of a ceramic ring pressed into a metal supporting stamping, is also disclosed.

Fireproof stamping mass for tap spouts and flues in blast furnaces

Abstract: Fireproof stamping mass containing pyrophillite, silicon carbide, plastic clay, quarzite, a carbonaceous bonding agent and water.

Method of and apparatus for fluid die stamping

Abstract: A system for the die stamping of a fluid comprises a male die member whichs forced into a die cavity to compress and spread the fluid material therein. A piston in this die member is advanced after the die member is arrested by a shoulder of the female die member to compress gas ahead of this piston and increase the pressure at selected locations along the face of the male member at which cavities are provided to communicate this gas pressure to the fluid.

Automatic die safety lock for a metal stamping die

Abstract: A locking mechanism is provided for locking the upper and lower portions of a stamping die together when the die is out of press and releasing the upper and lower portions of the stamping die from locking engagement with each other when the stamping die is in press. The mechanism includes an elongated lockbar operatively associated with a spring-biased safety pin and a fixed pivot pin in the upper portion of the stamping die. A vertical leader pin projects upward from the lower portion of the stamping die into a bushing mounted in the upper portion of the stamping die and includes an undercut portion forming a locking surface for cooperative locking and releasing engagement with the lockbar in response to movement of the safety pin which senses whether the stamping die is in press.

Stamping medium inspection system

Abstract: PURPOSE: In case it is required to make an operation corresponding to the medium such as bankbooks, to compare the data of medium kind to which the input has been given from the tor with the data discriminated by the machine, and to prevent mis-halding and to promote the elevation of reliability. COPYRIGHT: (C)1977,JPO&Japio

Barrier-guarded stamping press control

Abstract: A stamping press system, the press having a ram, a driving means for the ram, and an electrically energizable ram control device for causing the driving means to drive the ram through a stamping cycle. The press is guarded by a barrier movable between an open position permitting operator access to the point of stamping operation and a closed position barring such access. A press trip control for the system has a pair of actuators, one for each hand of the operator. Upon their concurrent actuation, the actuators cause movement of the barrier to the closed position and energization of the ram control device initiating a stamping cycle. Provision is included for preventing such energization thereby preventing a stamping cycle if the barrier is not closed. Circuitry of the system prevents re-energization of the ram control device, thus preventing a further cycle until the operator has removed both hands from the actuators.

Precomminuter for stamping-grid waste - has cooperating blades on roller and stator

Abstract: A coaxial tubular stator housing has stationary sharp blades, and houses a rotating roller with peripheral offset sharp triangular blades. Pref. the triangular blades are inclined backward relative to the roller rotation, and are interchangeably set in axial grooves of corresponding width, at the periphery of the rollers. They are attached to a blade support by a single countersunk screw. The metal or plastics waste from stamping is sufficiently pre-comminuted and can then be delivered to a mill of corresponding throughput, for final comminution.

Cage for overrunning roller clutch

Abstract: A cage for a roller clutch is formed from a flat stamping having an annular portion with the tab-like projections extending generally radially from the inner and outer edges of the annular portion, the tab-like projections being arranged to permit the stamping of small diameter cages and, when folded, to provide retaining means for the rollers and energizing springs.

Stampable nylon sheets: Reinforcing with long glass fibers†

Abstract: Glass fiber reinforced thermoplastics have been utilized for many years in automotive and other high-performance applications. One of the newest processing methods for these materials is “stamping”, a process in which a reinforced thermoplastics sheet is heated and rapidly formed into a shaped object between matched metal dies. Advantages of products produced by this method include the following: parts consolidation, excellent strength, low cycle times even for very large objects, low finishing and tooling costs, and utilization of existing metal forming equipment. An extremely broad range of physical properties can be provided by tailoring both composition and construction of the composite sheets to the end-use requirements. The purpose of this paper is to discuss the material properties which can be achieved in stampable nylon-6 sheets as compared to corresponding injection molded compositions. The prime differences in composition between glass fiber reinforced stampable sheets and reinforced injection molded parts is the length and distribution of the glass fiber reinforcement utilized in each process. After injection molding, glass fibers are on the order of 0.015 to 0.030 in. in length, while after stamping the fibers may be of infinite length. This difference in length, in combination with the uniform fiber distribution obtained during stamping, leads to important improvements in heat and impact resistance and uniformity of properties.

Electron beam marking of workpieces - by beam scanning and row stepper motion controlled by process computer

Abstract: Alphanumeric symbols are marked for identification purposes on tools or wearing surfaces of structural elements by an electron beam which is guided across the workpiece surface by a programmable process computer. The electron beam pulses produce marks by local material evaporation in a raster pattern which can have any desired magnification factor. The system is not limited to unhardened metal surfaces like the stamping operation. It produces durable marks in hardened surfaces without causing any a symmetrical surface stresses. It can be applied as the last operation so that the marking depth is not reduced by grinding etc.

Forming large metal corrugated elements with high accuracy - by simultaneous bend-stamping of all curvatures

Abstract: Large metal corrugated elements are formed with high accuracy by simultaneous bend stamping of all curvature. The workpieces to be shaped are bent, using variable and regulatable stretch drawing and stretch bending forces such that simultaneously there is obtained a permanent shape change of the workpiece over its whole surface, esp. at the sections of the workpiece which have the curvatures over the extension limits of the material. Preferably a variable stretch drawing force is produced during bending stamping, with the aid of a controllable friction between the surface of the deformed workpiece and the adjustable tool parts of the deformer.

Apparatus for stamping candy bits

Abstract: The invention relates to an apparatus for stamping candy bits from a string of confectionary material and comprises coacting rotating members, which are disposed eccentric to each other and arranged to squeeze or cut bits of confection from the string and immediately upon the bit being formed, oppositely disposed stamping elements are introduced into the path of travel of the bit to shape it prior to its being discharged from the apparatus.

Press brake safety device

Abstract: A simplified safety guard assembly for use with a press brake or like machine tool to prevent operator access to the die and anvil zone during stamping operations. The guard preferably utilizes a see-through shield or guard panel located between the operator and forming die and mounted for vertical sliding movement to follow various positional elevations of the workpiece attending one or more forming operations in the press. In addition, the shield or guard panel is pivotally movable about a horizontal axis to facilitate convenient extraction of the formed workpiece from the press.

Stamping tool used in packaging container production - fitted with heated stamp edges for different stamping and cutting processes

Abstract: Stamp forming tool for the cutting out and stamping of plates made from thermo-plastic material used in the production of packaging containers There are rectangular stamp heating edges to stamp out the grooves limiting the base of the package container, with straight stamp heating edges to stamp out the side walls and side flap grooves In addition there are 'L' shaped heated cutting edges to cut out the plate corners from thermo-plastic material with flat heated stamping edges to melt out the recesses at the upper edges of the side walls into which fit the upper side flaps fit The 'L' shaped heated cutting edges have an edge cutting angle of 45 degrees

Terminal block with explosion protection - has Z-shaped metal stamping bolted to base with instrument cable and clamping supply cable

Abstract: Terminal block with protection against explosion consisting of an insulated base with a tightening bolt. The tightening bolt also holds down an additional Z shaped terminal stamping. The top flat part of the Z shaped stamping has a second flat plate held in position by a pair of screws and used as a clamp for the feed cable. The instrument cable is fitted with a shoe which is clamped bythe tightening bolt on the base of the terminal block. The Z shaped stamping has two side projections on to the base which will prevent it from turning. When the fixing bolt and the clamps screws are tightened both the joints will be firm and secure.

Multi-head, numerically controlled stamping machine - each punch mounted in groove holder for varying angle of punched slots

Abstract: A positioning device is for moving a punching tool to a prescribed location in a stamping machine contng. a store of punching tools and a stored program-controlled selection network for moving the tool into the desired position. Equi-angular location stops are used to position the pointed wedge punch w.r.t. its holder and the ratio, or the reciprocal ratio, of the constant angular distance between two adjacent stops and the wedge angle of the punching tool is a whole number. A revolving head is pref. used as the store of punches, i.e. the head can be rotated through 360 degrees so a punch can be located in the desired position above a workpiece. The device allows program-controlled blanking, e.g. of sheet where the position of the tool and also the location of the sheet is numerically controlled.

Wire forming for saw-tooth steel wires - features radially guided periodically acting tools such as stamping or notching blades

Abstract: The deformation of wires or similar workpieces is for stamping saw-toothed all steel wires, with radially guided, periodically acting tools. The workpiece, which is passed by a stamping- or notching blade, is held for a short time according to the pitch of the required profile, e.g. the toothing. After engagement of the stamping blade, the workpiece is then further transported by the amount of pitch or feed. The feed amount is carried out in an interval less than the notching interval between two subsequent continuously rotating stamping blades.

Switch plate production method - insulates plates provided with specially shaped, separate conducting areas

Abstract: A conducting plate is attached to the insulating plate, and the above shaped areas are stamped out from the conducting plate, with its parts covering the insulating plate areas, which should remain non-conducting, removed; the stamping tool partly penetrates, during stamping, into the insulating plate; the conducting plate consists of a conducting foil reinforced on the side facing the insulating plate; the reinforcing layer can be of paper, or of a liquid material hardening on application, yet holding fast to the plate. The removal of the superfluous part of the conducting foil can be executed by use of a roller driven over the plate.

Flat stampings sepd. from scrap edges of metal sheet - using flexible guide to direct cutter through the stack

Abstract: This is an addn. to 2343942 which described the sepn. of flat stampings, made from metal sheet, from the waste parts of the sheet; this sepn. is undertaken when the sheets are in a stack after the stamping operation. In the present invention, the lance or guide used to direct the parting-off tool down the slots between the components and the scrap is made from a flat strip. The lance pref. consists of two pieces of flexible strip between which the tool slides and made by bending one piece of strip to a U or V shape and fixing both free ends to the driving piston and cylinder unit which is located on the frame of the device. Gives precise location of the zone which is to be cut by the tool.

Contacting strips for electrodes of integrated circuit module - uses tongue shaped connector stamping with elasticised sections near proposed joints

Abstract: A system for connecting the electrodes of integrated circuit modules using tongue contact strips made to the pattern of the layout. A relatively thick metal stamping is etched near the ends of the proposed joints leaving thin elasticised easily deformable strips which are later bonded with the electrodes of the semiconductor elements. The contact stamping is prepared by using a first masking technique reducing the sections of the proposed joints to thin membranes. A second masking process is then applied to these sections to produce shapes complementary to the electrode surfaces. After preparation the surface to be bonded is coated with a gold layer.

Method of making needle guide devices for mosaic printers

Abstract: A method of making guide devices for mosaic printer needles by stamping or embossing guide grooves in members of rolled or drawn material, assembling the members with the guide grooves in complementary cooperating matching relation, and securing the members in assembly.

Automatic cutting machine stamping knife - has additional stamping blades for corner cuts with cut-away material channels

Abstract: Stamping knife for sequence cutting, particularly for the production of ready cut pieces for packing, and as used with an automatic cutting machine. In the stamping knife additional stamping knives for corner cuts are installed behind the blade for the main cut, and each additional stamping knife for corner cuts is provided with a channel to take cut away material. Every two neighbouring additional stamping knives can be connected to a unit or all the additional blades can be composed in a ring shaped insert. The additional stamping knives are held in position by means of screws or pins.

Ceramic bodies with stamped-out apertures - for decorated china and earthenware

Abstract: Automatic prodn of cut-outs in ceramic bodies by stamping when these bodies have the hardness of leather by providing means for preventing the stamped out mass adhering to the punch and preventing deterioration of the edge of the stamped-out opening. In partic. the punch drives the stamped out mass beyond the inner wall of the ceramic body and into the die where it is retained by suitable means such as points.

Method for the automatic manufacture of pressurized or liquefied gas tanks

Abstract: In a method for the manufacture of substantially cylindrical pressurized or liquefied gas tanks first and second portions deformable to open-ended cylindrical shape are stamped out of a same metal sheet, the cylindrical portions then being welded together by their free edges which mated in the sheet. A machine for automatically carrying out the method comprises means for stamping, shaping and assembling the portions.

Gas ignition devices

Abstract: In a piezo-electric manually-operated spark generating device the actuating mechanism comprises an actuating lever pivoted on the body of the device which accommodates the piezo-electric crystal assembly. It is arranged that in response to pivotal movement of the lever a cam rotates through a small angle between a fixed abutment and a relatively fixed head or pressure pad of the crystal assembly to exert high pressure on the crystal assembly for the generation of sparks. The cam is formed with precision by blanking or stamping from sheet metal so that it does not need to be subsequently machined as in the case of prior cam construction which would increase the cost of the cam. The stamping out or blanking of the cam from sheet metal also enables a roll pin to be formed integrally with the cam instead of being a separate member which is received by a hole in the cam.

Inspection tag for electromagnetic relay plugged in test circuit - has stamping with balancing spring for tolerances in contact springs

Abstract: Electromagnetic relay is plugged into a socket with an indicator shutter and an inspection tag mechanically fixed to the armature denoting the sate of the relay. The relay armature is loaded with a balancing spring used to compensate for the tolerances in the contact springs. The inspection tag and the balancing spring are stamped in a single sheet. The free end of the balancing spring is supported directly against the socket, providing a bias. The relay is used in test circuits for telephone equipment. The fixed end of the stamping has two holes for screwing it onto the armature.

Stampings for rotor and stator laminations - are stamped from single sheet and automatically separated

Abstract: Rotor and stator laminations are stamped from a single sheet, as in 1602574. After the stamping process the inner rotor stamping is separated from the outer rotor stamping by one of several methods. The stamping support plate may have a spigot with a diameter only slightly less than the stator stamping inside diameter. The stator stamping may be retained by a magnet under the support plate. A jet of compressed air may be used to retain the stamping. A mechanical catch which can be swung out of the way when not required, may retain the stamping.