baber/WOPTO huggingface dataset:
Patent GB-1463411-A (GB)
Title: Rotary anvil cover
IPC: B26D7/20
Filed: 1974-06-06
Abstract: 1463411 Cutting apparatus HENRY SIMON Ltd 6 June 1974 [21 June 1973] 25264/74 Heading B4B [Also in Division F2] A rotary anvil for use in rotary die cutting has a cover 12 formed of resilient material, the ends 14, 16 of the cover having interengaging lugs 28 and recesses 30 and the cover being attached to an inner reinforcing sheet 34, one end of the sheet 34 protruding beyond the lugs 28 (of end 14 as shown in Fig. 4) so that the abutment of the ends of sheet 34 will be circumferentially spaced from the interengaging lugs and recesses when the cover 12 is assembled on the anvil 10. A shim member 18 is provided under the region where the lugs and recesses interengage to make the penetration of the cutters in the region of the lugs and recesses the same as elsewhere. The resilient material can be polyurethane and the reinforcing sheet can be metal or fibreboard. The cover can be formed by applying bonding agent to the reinforcement, and release agent where the recesses are to be, forming the polyurethane about the reinforcement in a mould and then cutting the recesses out. Ribs 44 may be provided in the reinforcement 34 to prevent axial movement. The bonding and release agents can be printed on to the sheet 34.
Patent GB-920816-A (GB)
Title: Improvements in or relating to electric circuit arrangements incorporating semiconductor controlled rectifiers
Inventor: JACKETS ALBERT EDMUND
IPC: H02M7/155
Filed: 1960-07-20
Abstract: 920,816. Converting. GENERAL ELECTRIC CO. Ltd. July 10, 1961 [July 20, 1960], No. 25286/60. Class 38 (2). Semi-conductor controlled rectifier 1 is connected in series with load 2 and secondary winding 3 of transformer 4, whose primary 6 is connected to A.C. supply 5, and which has winding 10 supplying a pulse generator, which maintains the firing pulse until the end of the conducting half-cycle. Winding 10 and capacitor 11 apply a sinusoidal signal to base of transistor 7 advanced 90 degrees on the voltage applied to rectifier 1 and load 2 by winding 3. Control potentiometer 16 and resistances 17, 18 apply variable bias voltage to base of transistor 7. Transistor 7 conducts when its base swings positive with respect to its emitter, connecting its collector and the junction of resistances 12, 13, to earth. The base of transistor 8 is then driven positive by resistance 14 and battery 15. Consequently transistor 8 (formerly held cut-off by battery 9 and resistances 12, 13) conducts, applying gate current to rectifier 1, which fires. Without rectifier 20 and resistance 21, transistor 8 would remain conducting until base of transistor 7 swings negative again. Rectifier 20 and resistance 21 drive base of transistor 8 negative, cutting off gate current, at the end of the halfcycle, when rectifier 1 becomes reverse biased.
Patent GB-384002-A (GB)
Title: Improved method and means for the electromagnetic control of the fuel-injection valves of internal combustion engines
Filed: 1931-09-10
Abstract: 384,002. Valve gear. WALKER, B. and KENNEDY, H. E., 650, Highland Avenue, Piedmont, California, U.S.A. Sept. 10, 1931, No. 25397. Convention date, Sept. 10, 1930. [Class 7 (vi).] A valve for the fuel-injection system of an engine is controlled by an electromagnetic device which is actuated by the discharge of a capacity or condenser included in the circuit. Fig. 1 shows a valve 1 arranged in circuit with a battery or other source 2, condenser 3, variable resistance 5, and switches 6a, 6b alternately closed by a rotary cam 4. When the cam contacts at 6b, current flows from a brush 8 bearing on the cam shaft to the condenser, the switch 6a being then open. When the cam releases contact 6b, the switch 6a is closed, and the condenser discharges through the valve 1. Adjustment of the time of opening of the valve is obtained by the variable resistance 5. The condenser 3 may also be variable. Fig. 4 shows the construction of the switch and cam 4, the contacts 6a, 6b being carried by an arm 6 controlled by a spring 11 which serves to convey current to the condenser. Where a number of valves are to be controlled, the condenser discharges through a rotary distributer switch connected to the several valves. The condenser 3 may be bridged by a fixed or variable resistance, and a separate condenser may be used with each valve. Fig. 12 shows a circuit for four valves 1 provided with separate condensers 3 and switches 30. The variable resistance 5 may be used alone, or in conjunction with similar resistances provided to each condenser.
Patent GB-714349-A (GB)
Title: Improvements relating to a process and apparatus for the manufacture of bodies from plastic material by extrusion
IPC: B29C48/07
Filed: 1951-10-31
Abstract: 714,349. Extruding clay &c. LUDOWICI, J. W. Oct. 31, 1951, No. 25459/51. Class 87 (2) Clay &c. articles are extruded downwardly on to a working surface from each of a plurality of nozzles in turn, each extrusion nozzle remaining horizontally stationary during extrusion and rising vertically at the same speed and to the same extent as the clay is extruded. The press comprising the nozzles moves either discontinuously (Figs. 2 and 3) or continuously (Figs. 4 and 5) relative to the working surface in such a manner that the extruded articles are deposited in spaced relationship thereon Figs. 2 and 3 show an extrusion press 3 suspended from a transporter 12 by hydraulic or mechanical means 13 which is capable of raising and lowering the press. The press has two nozzles 7, 8 each carrying a cut-off plate valve 2 and being pivotally coupled to the ends of a control lever 14 fulcrummed on the press. In the Fig. 2 position the nozzle 7 is in the open position and has just extruded an article 16A (the press rising during extrusion). In this position the lever 14 is pulled in the direction of arrow A, whereby nozzle 7 is closed and nozzle 8 is opened. As nozzle 7 closes a knife (not shown) cuts off the article 16A. The press is then lowered, extrusion begins through nozzle 8, and the press rises to the Fig. 3 position, thus extruding article 16<1>. On the next movement of lever 14, in the direction of arrow B, the nozzles are reversed and the press is pulled along to a new depositing station by means of a ratchet hook 14 engaging a rack 17. Figs. 4 and 5 show part of a press having four extrusion nozzles 21a, 21b, 21c and 21d pivotally mounted on a disc 24 which rotates clockwise continuously. Clay is fed to a conduit 23 behind the disc, and thence to a 90 degrees slot 25 with which each nozzle in turn communicates as the press moves as a whole from left to right. Thus, in Fig. 4 nozzle 21d has just finished depositing an article 16d and in Fig. 5 nozzle 21a is extruding article 16a.
Patent GB-781080-A (GB)
Title: Improvements in or relating to wrapping or packaging structures and blanks for the production thereof
IPC: B65D81/02
Filed: 1954-09-02
Abstract: 781,080. Packaging. REED CORRUGATED CASES, Ltd. (Paige, R. E.). Aug. 18, 1955 [Sept. 2, 1954], No. 25521/54. Class 94(1). A wrapping or packaging structure formed from corrugated or like compressible material 3 disposed between outer layers 2, has a main body part 5 having at at least one end a transverse cushioning member formed by folding the blank over on itself in zig-zag formation at 7, 8 and 9. The blank in Fig. 1 is folded along the lines 4 and then along the lines 6 to form the structure illustrated in side elevation, Fig. 4, and in end section, Fig. 3. To facilitate folding, the outer layers may be cut through. The structures are employed as buffer means for packaging articles and may be made in tubular form to give the structure illustrated in side elevation in Fig. 11. In a further embodiment the material is folded to form a sleeve suitable for fitting into a rectangular box for packing an article that is larger at one end than at the other.
Patent GB-630657-A (GB)
Title: Improvements in or relating to gyroscopes
IPC: G01C19/38
Filed: 1947-09-18
Abstract: 630,657. Pivots. BARNES, J. W., and HARLE, T. F. Sept. 18, 1947, No. 25523. [Class 65 (ii)] [Also in Group XX] The vertical pivot for the inner gimbal 52 of a gyroscope in its outer gimbal 70 comprises a loose bearing 82 of conventional type and a thin tensile suspension member 83 which may be of metal, quartz or plastic, secured at its lower end to the inner gimbal 52 and at its upper end to a C-shaped member 89 which bears downwardly on a lever 88 fulcrummed at 87 and carrying at its remote end a mass 90 which balances the load of the member 83. The fulcrum 87 is mounted on an annular member 85 held by a coiled compression spring 84 against stops 86 provided by upward extensions of the outer gimbal 70 and further stops may be provided for limiting the motion of the lever 88 about its fulcrum 87. The arrangement is such as to limit the up and down movement of the inner part of the bearing 82 to the same order of freedom of axial movement permitted by the conventional bearing. Alternatively the tensile member 83 may be attached directly at its upper end to the extension of the outer gimbal 70.
Patent GB-895841-A (GB)
Title: Improvements in or relating to devices for measuring alternating voltages
IPC: H03F1/36
Filed: 1958-08-08
Abstract: 895,841. Voltage - measuring circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. Aug. 8, 1958 [Aug. 12, 1957], No. 25528/58. Class 37. An alternating voltage to be measured is applied to the input of a push-pull amplifier (2, 3, 4, 5) the output of which is connected to a four-rectifier Gratz-arrangement (6, 8, 7, 9), negative feedback voltages from the output to the inputs of the push-pull branches being derived from resistors 10, 11, each connected in one branch of the Gratz circuit. Negative feedback is provided by resistors 10, 11 only during the positive half-cycles of input current since rectifiers 8, 9 are conductive during negative half-cycles, feedback during negative half-cycles being maintained by connecting the screen grids of valves 2, 3 to a common supply terminal. In order to make the output voltage independent of the frequency of the input voltage the cathodes of 4, 5 are connected to earth through resistors 13, 14 while the grids of valves 4, 5 are connected through resistors to the common point of 13, 14.
Patent GB-443733-A (GB)
Title: Improvements in plaster boards, sheets or strips
IPC: B28B1/52
Filed: 1934-09-05
Abstract: A mould for a plaster board, sheet, or strip consists of a concrete slab faced with cork lino and having upstanding edges.
Patent GB-1223112-A (GB)
Title: Improved concrete mixer
Inventor: SKELTON JAMES LESLIE
IPC: B28C5/32
Filed: 1967-06-02
Abstract: 1,223,112. Concrete mixer. LINER CONCRETE MACHINERY CO. Ltd. 30 May, 1968 [2 June, 1967], No. 25578/67. Heading B1C. A concrete mixer comprises a rotatable drum 11 spanned by a bridge (not shown) supporting at least one stirrer assembly comprising a shaft 13 rotatable about an axis parallel to and spaced apart from the axis of rotation of the drum and carrying a support 21 provided with holders 17, and spring-loaded fingers 16 rotatably mounted in the holders, each finger being provided with a pair of blades 14, 15 one of which is located at a different height to the other, the arrangement being such that if a lower blade 14 encounters an obstacle, the finger to which it is secured pivots in its holder to surmount the obstacle.
Patent GB-760541-A (GB)
Title: Indicating devices for obtaining the representation of a frequency curve
IPC: H03J1/04
Filed: 1954-09-03
Abstract: 760,541. Recording apparatus. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Sept. 3, 1954 [Sept. 8, 1953], No. 25616/54. Class 106 (4). [Also in Group XL (c)] An indicating device which provides an approximate representation of the frequency characteristic of an associated amplifier comprises a length of steel wire 11 held at its centre by a clamp 9 and connected at its extremities so as to be moved upon movement of a corresponding frequency-control member. In the arrangement shown the shafts 45, 47 of the frequency-control members are coupled through cord-and-pulley systems with the arms 29 and 31, these arms operating through the steel wires 21 and 23 to position the extremities of the wire 11 so as to indicate the frequency characteristic of the amplifier. The wire 11 is preferably coloured white and moves in front of a dark. background. A transparent ruled plate 55, forming part of the outer case of the amplifier, is provided for enabling the device to be viewed. The wires 21, 23 may be replaced by cords in which case additional tensioning springs are provided.
Patent GB-1115911-A (GB)
Title: Method for depositing thin metal coatings
IPC: C03C17/09
Filed: 1965-06-17
Abstract: <PICT:1115911/C6-C7/1> Ceramic, glass, metal or plastics material is coated by vapour deposition with a first layer of Cr or Ni-Cr, a second layer of a mixture of Cr or Ni-Cr with one or more metals e.g. Cu, Au, Ag, Ni or Sn and a third layer of one or more metals e.g. Cu, Au, Ag, Ni or Sn.  Coating is carried out in a vacuum vessel 1 containing electrically heated vapour sources 5, 6 and a shaft 2 carrying substrates 4 which are rotated during coating.  The coatings are produced by selectively starting and stopping evaporation from each source; automatic timing control may be used.
Patent GB-351320-A (GB)
Title: Improvements in self-adjusting sunlight reflectors
IPC: F21S11/00
Filed: 1930-08-27
Abstract: 351,320. Thermostats. ARTHUYS, J. M., 9, Rue de Clichy, Paris. Aug. 27, 1930, No. 25628. Convention date, Sept. 21, 1929. [Class 64 (ii).] A thermostatic switch of the type containing a freely expanding gas constraining mercurv to break or close an electric circuit is characterized in that a small blackened shaving 102, as shown, of soft steel is provided inside the heat-sensitive gasfilled space 93.
Patent GB-426914-A (GB)
Title: Self-acting valve
IPC: F16K31/20
Filed: 1934-09-06
Abstract: 426,914. Float - actuated valves. VUILLE, L. M., Sonvilier, Berne, Switzerland. Sept. 6, 1934, No. 25652. [Class 135] A filling or distributing device for liquids adapted to shut off the supply when the liquid in the vessel being filled reaches the desired level, comprises an outer tube 14 in which loosely slides a tube 6 carrying a valve seat 2 for a valve 3. When the tube 6 is raised relatively to the tube 14 by an amount limited by a pin and slot 9, 8, a pivoted catch 11 engages beneath the valve stem and the valve remains open when the tube 6 falls, but as the vessel fills a float 12 rises to trip the catch 11 and allow the valve to close. The tube 14 is divided into two chambers by a partition 7 which diverts the liquid through holes 10 and also acts as a guide for the valve stem. The float 12 is shaped as shown in Fig. 2 and is retained within the tube by a pin 13. A flange 4 is provided to rest on the edge of the vessel, and in a modification wherein the valve seat 2 carries a funnel, the flange is adjustably screwed on to the outside of the tube. The device may be used for filling bottles, cans, casks, &c., on tanks delivering periodically a given quantity of liquid, or as a safety cut-off valve in constant level tanks.
Patent GB-808834-A (GB)
Title: Improvements in vacuum casting
Inventor: TURNBULL JOHN STRATTON
IPC: B22C9/04
Filed: 1954-09-03
Abstract: 808,834. Vacuum casting. METROPOLITAN-VICKERS ELECTRICAL CO. Ltd. Aug. 18, 1955 [Sept. 3, 1954], No. 25654/54. Class 87(2). [Also in Group XXII]. A method of vacuum casting comprises supporting a permeable shell mould 1 within a container 2 by permeable means 3, connecting the container with a vacuum accumulator and evacuating pump with a valve between the container and the accumulator, evacuating the accumulator with the valve closed, and subsequently opening the valve and at the same time pouring the casting material into the mould. The evacuating pump is maintained in operation during the casting operation and solidification. A collar 5, between the pouring throat 4 and the container, is formed from a viscous ceramic slurry. Specification 722,816 [Group XXII] is referred to.
Patent GB-283651-A (GB)
Title: Improvements in high frequency amplifying systems
IPC: H03F3/54
Filed: 1926-10-15
Abstract: 283,651. Standard Telephones & Cables, Ltd., (Western Electric Co., Inc.). Oct. 15, 1926. Thermionic amplifiers.-In a thermionic amplifier for handling frequencies of the order of 30 megacycles, corresponding to a wavelength of 10 metres, the input and output circuits 8, 9 and 10, 11 consist of telescopic conductors, which are adjusted to resonance by varying their overall length. As shown in Fig. 1, a high-frequency source 0 is coupled to a closed input circuit 8, 9, the output 10, 11 consisting of two open-ended telescopic conductors forming a radiating system. Both input and output circuits may be open or closed, the effective length for resonance varying from one-fourth to one-half the operative wavelength. The output from the amplifier 4 may be coupled to a second amplifier, as shown in Fig. 3.
Patent GB-157559-A (GB)
Title: Improvements in torque tubes for motor vehicles
IPC: B60K17/22
Filed: 1919-10-21
Abstract: 157,559. Seabrook, H. H. P., Seabrook, P. B. H., and Morgan, H. R. Oct. 21, 1919. Torque-rods.-The torque-tuba c has a screwthreaded front end c<1> which engages with a screw-threaded aperture in a cross-head a pivotally mounted on a frame member b.
Patent GB-902027-A (GB)
Title: Process for the manufacture of fluoropregnenes
IPC: C07J7/00
Filed: 1958-08-11
Abstract: Fluoropregnenes of the general formula:-<FORM:0902027/IV (b)/1> in which R1, R2 and R3 each represent a hydrogen atom or a free or esterified hydroxyl group, R4 represents a hydrogen atom or a methyl group, X is a hydrogen, chlorine or fluorine atom and Y represents two hydrogen atoms, an oxo group or a hydrogen atom and a free or esterified hydroxyl group are prepared by treating a compound of the general formula:- <FORM:0902027/IV (b)/2> which contains in the 3- and 20-position a hydrogen atom and a free or esterified hydroxyl group, or a free or ketalised oxo group, with boron trifluoride, converting a free or esterified hydroxyl group or ketalised oxo group in the 3-position and/or the 20-position into a free oxo group, treating a resulting 6b -fluoro-5a -hydroxy compound with an acid or basic dehydrating agent, if necessary isomerising a D 4-3-oxo-6b -fluoro compound so obtained to a D 4-3-oxo-6a -fluoro compound with an acid, and at any stage of the process, if desired, hydrolysing esterified hydroxyl groups or esterifying free hydroxyl groups. The invention is illustrated by seventeen examples. Specifications 834,372 and 850,833 are referred to.
Patent GB-258300-A (GB)
Abstract: 258,300. Kohler, U., and Hasler Akt.- Ges. vorm. Telegraphenwerkstatte von. G. Hasler. Sept. 14, 1925, [Convention date]. Associated counters actuated by revolving mechanism.-Relates to a franking-machine comprising a series of dies 2' arranged on a rotatably adjustable drum 2 fixed on a shaft 1 about which a number of counters 3 are concentrically arranged, each counter, when in the operative position, being actuated from a pinion 6 carried thereby, and all the pinions 6 outside the driving positions being prevented from rotating by means of a locking-plate 7, provided with a notch 8, which is bridged over by means of a slidable block 14 adapted to be displaced by a pinion 6 when it is rotated. The block 14 is formed by a projecting part of a plate 15 provided with a slot 16 to receive a D-shaped disc 17, which is fixed on a rotary shaft 9 and, by engaging a cam. 19 on the plate 15, returns the block 14 to its normal position after each impression. The pinion 6 in the operative position is advanced by a pinion 10 on the shaft 9. Every other tooth of each pinion 6 is cut away for part of its breadth to receive the locking-plate. Envelopes &c. to be printed are pressed against the drum 2 by a reciprocating platen.
Patent GB-780143-A (GB)
Title: Improvements in and relating to galvanic copper plating
IPC: C23C18/54
Filed: 1955-09-09
Abstract: A metal surface, such as the silvered surface of a mirror, is copper plated by spraying simultaneously on to the said surface an aqueous solution of copper sulphate containing phosphoric acid, and an aqueous suspension of a metal dust, maintained in a homogeneous state by agitation, selected from the group zinc, iron, cadmium, nickel, cobalt, tungsten, molybdenum and chromium. The solution and the suspension are preferably supplied to the surface in equal volume.
Patent GB-706467-A (GB)
Title: Improvements in or relating to bimetallic coils and the manufacture thereof
IPC: H01F41/06
Filed: 1952-10-15
Abstract: 706,467. Coiling. SCHLAICH, H. Oct. 15, 1952 [Oct. 18, 1951], No. 25902/52. Class 83 (4) In making a bimetallic coil comprising two parallel spiral coils connected by a bridge portion arbors secured'to each end of a blank are rotated in opposite direction to form the coils. A blank is bent about a mandrel 42 and the ends of legs 20, 22 are secured in shallow slots in arbors 28, 30. The arbors are secured in split collet chucks 68, 70 operated by screws 76 and rotated at the same speed in opposite directions from a handle 86 through gearing 78, 80, 102, 88, 90. The chuck 70 is mounted on a headstock 58 slidable on rods 54 and secured by a clamp 62. Spring urged arms 112 press the blank against the arbors during coiling.
Patent GB-1439597-A (GB)
IPC: E04D3/35
Filed: 1972-06-02
Abstract: 1439597 Roofing PERMANITE Ltd 1 June 1973 [2 June 1972] 25948/72 Heading EIW A roof comprises a structural decking, a weatherproof covering and adhered over the covering tiles or slabs of thermal insulation material protectively coated individually by a layer comprising a fibre base coated on both faces with bitumen or coal tar pitch and which has a bonded upper surfacing of mineral aggregate. The insulation material may be foamed polystyrene or foamed glass. The protective coating may be as more particularly described in Specification 1285541 and further insulation material may be provided between the decking and the weatherproof covering.
Patent GB-268672-A (GB)
Title: A flask for holding medicaments, perfumes and other liquids
IPC: B65D47/18
Filed: 1926-10-18
Abstract: 268,672. Marino, A. Oct. 18, 1926. Casings.-A flask for medicaments, perfumes, &c., comprises a tube 10, Fig. 3, closed by a rubber stopper 3 through which a tube 4 closed at the end 5, passes. A cap 7 carrying a rubber ring 8 is adapted to close a lateral outlet 6 when in position. A wick 9, Fig. 4, may be placed round the tube so as to serve as a brush for applying the contents. The device may be enclosed in a casing 11 having a compartment 13 for containing a reserve supply of wicks or court plaster.
Patent GB-1484745-A (GB)
Title: Metallurgical lances
IPC: C21C1/02
Filed: 1975-06-18
Abstract: 1484745 Metallurgical blowing lance GRSTEIN REFRACTORIES Ltd 11 June 1976 [18 June 1975] 26012/75 Heading F4B [Also in Divisions B5 and F2] A metallurgical lance comprises a metal tube 2 with longitudinal fins 3 and means bridging the outer-edges of the ribs and carrying anchors, the bridging means being spaced longitudinally of the tube and a refractory coating 5 surrounding the tube and the bridging means 4. The bridging -means and anchors are formed of barbed wire wound helically round the finned tube, which may be formed by extrusion, or by welding fins to a tube. The refractory coating is formed by placing the tube with its anchors in an open topped mould which is filled with refractory material and vibrated, pressing, and drying the refractory. The refractory may be dried by passing an insulated electric heating element through the tube.