Showing papers on "Stamping published in 1974"

Air duct made from sheet metal stamping

Abstract: A sheet metal stamping forming an air duct for use in heating and cooling systems and the like. The stamping has a generally rectangular shaped body portion and a protruding tongue portion extending from at least one side thereof. The stamping is foldable along its end edges and the tongue portion whereby two such stampings may be cooperatively engageable with a pair of side panels to form an air duct section having an inlet, outlet and a diverter or secondary outlet formed by the tongue portions. The tongue portions are adapted for connection to standard conventional take-off fittings.

Stamping impressions in aluminium plastic combination - using low-friction covering on the punches

Abstract: The stamping device has a multi-impression plate which, when the material is fed in, moves up to a clamping plate so as to grip the material. A number of vertical punches are moved down to draw the material into the impressions. The bottom end of each punch is tapered and is covered with a low-friction material such as PTFE. This enables impressions to be made with a high depth/diameter ratio without splitting. The material punched is a thin polypropylene/aluminium foil/polyethylene combination.

Method of and apparatus for stamping out sheet material blanks

Abstract: A sheet material is advanced to a first location where cutting tools cut into it but not through it along the outline of the desired blank. Thereupon the sheet material and the cutting tools are jointly advanced to a second location where the cutting tools cut completely through the sheet material along the outline, and subsequently the thus-severed blank and the surrounding sheet material scrap are removed separately from the second location.

Part family methods for bulk metal forming

Abstract: The use of part family or group technology methods for machining operations is well established and several manufacturing systems baaed on this approach are in existence, as well as rationalized and automated procedures for design, process planning, etc. It is less well recognized that a similar approach to metal forming operations can lead to substantial benefits also. In this paper the possibilities for extending this approach to bulk metal forming operations (forging, stamping, etc.)are outlined. In particular systematic procedures for component and die design are described based on classification and coding systems for formed parts. In this context, the selection of forging features (draft, allowances, etc.), billet size estimation, and so on are considered. The use of group die sets, with interchangeable inserts, for families of similar parts is outlined. This technique enables die coats to be substantially reduced thus making forming operations more economically viable for small batches of ...

Method of making an electromagnetic-sheet stack

Abstract: A plurality of identical ferromagnetic sheets are stamped or punched from a larger sheet of silicon-alloy steel. A finely divided powder of an inert bond inhibitor and spacer is mixed with the oil applied to the sheets during the stamping operation, or is applied to the sheets before or after stamping. The coated sheets are thereafter stacked and fastened together and heated to a temperature sufficient to anneal them and to form an insulating oxide layer on the sheets.

Press having travelling die set

Abstract: A press comprising a base, a lower bolster mounted on the press, an upper bolster mounted on the press for movement with respect to the lower bolster, power means for moving the upper bolster vertically, a substantially horizontal track mounted on the base, a die set comprising a pair of die plates having post means guiding the plates for movement with respect to each other, means for guiding the die set on the track, and power means for causing the die set to travel back and forth along the track between a press position intermediate the upper and lower bolsters, and a loading and unloading position at a point remote from the press position. The apparatus may be used for molding metal or plastic material, blanking, stamping and piercing.

Fluid actuator device

Abstract: A fluid actuator device for use in combination with apparatus to control the supply of a fluid such as air delivered thereto during its course of operation, for ejecting stamped parts and/or slugs, molded parts, for directing material through a stamping die and various other operations where a controlled air stream or blast is required. The fluid actuator device is mechanical in operation, hence eliminating the need of an electrical source coupled to it, as in the case of, for example, microswitches.

Removable stamp holder for stamping machine

Abstract: A stamping machine has a frame including a bed along which articles to be stamped are intermittently advanced to be momentarily positioned at least one stamping station for stamping. A stamp assembly is positioned at each station and includes a stamp holder that is pivotally secured to the frame at one side of the bed to extend transversely above the bed and be movable to and from the bed to stamp articles that may be momentarily positioned on the bed at the stamping position. Each stamp holder has two spaced apart side members extending across the bed between which a stamp head is removably secured by Lshaped slotted pivot means.

Radiant gas burner

Abstract: A radiant gas burner having an upper elongated refractory body is secured to and supported by an underlying metallic manifold body. The manifold body comprises a metallic stamping formed of aluminized sheet metal and a vent bar cast of oxidation resistant metal seated in the stamping beneath the refractory body with a series of burner vents of narrow width formed in said vent bar for discharging the fuel mixture directly against the bottom of a series of transversely extending ceramic vanes in the upper refractory body. The metal stamping has reduced weight, is lower in cost, and is more resistant to oxidation than grey iron castings heretofore used. The preferred metal for the burner vent bar has a superior resistance to the formation of oxidized material which sometimes closed similar burner vents in grey iron castings of the prior art.

Continuous roller stamp for strip - has longitudinal and transverse cutting rolls with common back pressure roll

Abstract: Roller stamp has two stamping rolls with stamping blades facing a common back pressure roll. The roll carrying the longitudinal cutter blades acts on the strip first. followed by the roll with the transverse cutter blades. The strip contacts the back pressure roll before the first blade acts on it; it is guided by rollers along a curved track between the two stamping rolls. This stamp is capable of high working speeds; it produces stamping cuts of extreme accuracy.

Formed vane elements for liquid-vapor separators

Abstract: Apparatus for separating entrained liquids from a traveling stream of gas or vapor wherein the gas travels through sinuous paths formed by generally vertical vanes of zig-zag cross-sectional configuration arranged in side-by-side relationship and provided with vertically extending channels which collect water droplets impinged upon the surfaces of the vanes as the gas travels therethrough. The invention is characterized in that each vane, including the collecting channel therefor, is fabricated from a single sheet of metal formed as by stamping, bending or roll forming into the desired cross-sectional configuration. This reduces the cost of the product and eliminates tolerance problems encountered when an attempt is made to obtain the desired cross-sectional configuration by welding.

Commutator for a small electrodynamic machine

Abstract: A commutator for a small electric motor wherein the commutator segments are made by stamping same from a metal strip or a metal sheet provided with a contact layer which consists of an alloy of noble metals rolled on to the substrate metal. In a preferred embodiment, the alloy comprises 70 +/- 1 percent of gold, 20 +/- 1 percent of silver, 10 +/- 1 percent of copper, and an impurity content in the form of other metals which is at most 0.05 percent.

Sequential stamping of strip material

Abstract: A method and apparatus for feeding to a fixed-axis punch, successive sections of a strip of flexible material for the purpose of punching out from the strip plates of a predetermined size and shape, said strip being punched out in a staggered pattern along three rows of axes which are parallel to the median longitudinal axis of the strip. The invention is applicable, in particular, to the stamping out of circular plates of identical diameter from a thin metal strip, which plates are to be shaped in their final form by successive stampings performed by a series of inter-related punches located in a transfer machine.

Process for the manufacture of crank-shafts

Abstract: The present invention relates to a process for the manufacture of crank-shafts, comprising the heating of a cylindrical zone of a blank containing a quantity of material at least equal to that necessary for the forging of a crank-pin and of two webs associated therewith, the die forging (die stamping) of the crank pin and of its two webs, the cooling of the forged part and repetition of the process for zones of the blank adjacent the crank-pin already forged. The invention also relates to a field magnet (or inductor coil) appropriate to the said process.

Apparatus for conveying and stamping eggs

Abstract: A device for automatically and continuously stamping eggs with an indicia to form a basis for judging the freshness of the eggs. The device provides apparatus for intermittently feeding eggs on an individual basis to a spring-pressed stamper unit and spoonshaped members associated with an endless chain conveyer for propelling the stamped eggs to the discharge exit.

Refractory casting, ramming or stamping mass

Abstract: This invention relates to a refractory mass of the art known per se for casting, ramming or stamping refractory linings and for metallurgical ladles or tapping channels, based on refractory grog and binder, to which mass there has been added straw-shaped, channel-forming elements, equally distributed throughout the mass, in sufficient amount to make possible rapid-drying.

Packing of goods of variable size - uses cardboard etc. blanks fed as web for variable blank stamping

Abstract: Goods of variable size, such as flat heating elements, are packed in cardboard or other foil blanks, where the packaging foil is supplied as a continuous web, from which the blanks are stamped in desired sizes The packaging blanks are stamped directly before the goods are packaged and the stamping equipment is adjusted prior to stamping by a provided control to produce blanks corresponding in size with the size of the packaged goods The foil web is supplied to the stamping equipment in a width which is nearest to the width of the required packaging blank

Plastics coated stamping prodn. - by stamping presses with spray unit and central pulse control unit

Abstract: Prodn of coated stampings is achieved by a spray machine in conjunction with a number of presses. In a typical arrangement, a metal strip is stamped in the first working posn. to cut the desired shape, after which it passes to the spray unit where plastics are deposited on both sides of the stamping. In the final posn. a second press trims the plastic coating and detaches the finished stamping. Machines are hydraulically or pneumatically actuated and controlled by a central unit.

Ornamental ceramic plates - stamped out from extruded strip

Abstract: Titles are stamped out from extruded strips by spring loaded stamping tools applied from either side so as to penetrate into the material almost into the centre, the stamping tools being spring loaded The ornamental stampings are still held by the main strip and only broken out after firing The method permits mass prodn of this type of plate rather than their mfre by individual stamping out

Inductor for magnetic-pulse stamping of flat banks

Abstract: An inductor for magnetic-pulse stamping of flat blanks comprises a cylindrical current-conducting frame having radial circular slot which accomodates a winding, whereas positioned in the proximity of one end surface of the cylindrical current-conducting frame is a flat blank, while the body of the frame has holes at the side opposite to the end surface in whose proximity a flat blank is positioned, the holes communicating with the nearest end surface by slits.

Stamping device with vertically guided frame

Abstract: A stamping device with vertically guided frame, which carries the matrix and vertically guides the stamping punch. When the vertically movable stamping punch hits the workpiece to be punched, the frame of the stamping device is lifted until the matrix engages the bottom side of the workpiece, whereupon in response to a further downward movement of the punch, the punching operation is carried out. The frame has associated therewith a balancing weight which is adjustable on the longer arm of a two-arm lever between two side plates of the frame, whereas the shorter arm of the two-arm lever supports the frame. The free end portion of the longer lever arm is connected to the frame by compensating and cushioning spring means.

Distance measuring instrument for motor vehicles

Abstract: A distance measuring instrument for motor vehicles by which the distance covered is printed by symbols on a card insertable into a slit in the instrument casing, in which there is provided an accummulating counting mechanism which, by a mechanism, can be actuated to move from the non-operative position to an operative position adjacent the slit for stamping the card via ink to mark the accummulated value on the card, and in which the card slit is provided with a curtain which, in the non-operative position, covers an opening through which the stamping mechanism acts during stamping, with the curtain being connected to the stamping mechanism so that it exposes the opening immediately prior to the stamping and returns to the position covering the opening immediately after stamping.

Stamped contact tip

Abstract: The following specification describes a pin contact formed from a stamping with the insertion end of the contact having bevelled end edge surfaces for enabling opposing pin contact external surface ends to engage for providing a closed juncture at the insertion end of the pin contact.

Continuous stamping out of flat articles

Abstract: Steel strip-stamping knives are placed on the workpiece covered with a pressure plate, which after automatically stamping out the articles is raised up and returned to the starting position and placed on the knives for the next cycle of operation. After raising the pressure plate the stamping knives are fixed electromagnetically and lifted from the material into a predetermined pattern, returned to the starting position and placed on the material for the next operating cycle, aligned, if necessary, and finally covered by the pressure plate. The process is used particularly for stamping out articles from fabrics, leather, cardboard, etc.

Method of embossing with manually adjustable patterns or designs

Abstract: A method of producing an embossing plate is disclosed wherein the conventionally used stamping dies or the like are dispensed with, and the ingenuity and creative thoughts of the worker are fully transported into the finished works through his arbitrary adjusting or modifying of the raised patterns or designs on a background plate. The raised patterns or designs may be formed of residual cloths or fibers to enable a low-cost decorative embossment. The cloth material is randomly distributed within a provided opening in the background plate, and subsequently coated with stiff plastic material to fix the arbitrary pattern formed.

Embossing/stamping press - for plastic components eg artificial leather articles

Abstract: High frequency stamping and subsequent stamping out of flat plastic parts utilising a known high frequency welding stamping technique and more especially a press permitting the production of sequences of at least three independently adjustable press strokes.

Metal support for drop wires - of folded stamped metal sheet

Abstract: The sheet metal is stamped, to give an aperture of the required dimensions and profile so that when the metal is folded along its length, and the ends bonded together, the support for the drop wires is completed. The process is suitable for mass prodn. techniques, and has low unit costs.

Paper stamping blade - part coated by P.T.F.E. or silicone based layers

Abstract: Paper stamping blade for a bridge stamping machine has the blade and slide face of the cutting part covered with an adherent layer of a self-lubricating pref PTFE layer or alternatively a silicone-based layer, which is pref vapour deposited or sprayed on with a volatile solvent