baber/WOPTO huggingface dataset:
Patent GB-923959-A (GB)
Title: Improvements in and relating to presses for the hot working of metal billets
Inventor: SALTER FRANK SIDNEY
IPC: B21C33/00
Filed: 1961-10-26
Abstract: 923,959. Extruding; billet-piercing. LOEWY ENGINEERING CO. Ltd. Oct. 26, 1961, No. 38350/61. Class 83 (4). A metal billet press which may be an extrusion press has a plurality of billet holders mounted in a rotatable carrier formed with an internal liquid-cooling circuit, the billet containers being successively movable into and out of the working axis of the press. The extrusion press comprises a main frame consisting of two pressure platens connected together by tension columns, an hydraulic unit mounted on one of the platens for driving a pressing stem towards a die mounted on the other platen, and a multiple billet holder rotatably mounted on one of the tension columns. Alternatively, each container may be mounted on a separate carrier. Two housings 17 are provided in the billet holder, each being a mounting for a device for stripping the discord from an extruded product. Billet container location.-Each container 45 has four integral rectangular keys 54 which engage guide bars 48, 49, clearances being provided, as seen in Fig. 2, for radial expansion of the billet containers and movement of their axes to and from that of the tension column 11. Location of the containers radially of the tension column is achieved by means of eight tie-rods 64, two tying each end of a container to one of four anchor tubes 66. The tubes have tubular turn-buckles 65, and, as an entire assembly are cooled by internal liquid flow. Liquid coolant circuits.-There are two cooling circuits, inlet and outlet connections for each being made to the billet container 12 through a fixed distributer ring mounted about the tension column 11 on one end of the billet container hub 13. Each circuit contains a flowcontrol valve. The first circuit is as follows: inlet 67 (Fig. 1), conduit 70, tie-rod 64, anchor tube 66, tie-rod 64, conduit 71 ; conduit 71 passes unbroken through the billet container to the underside and through the tie-rod assembly below (in plan view) that seen in Fig. 1, to inlet 72 (Fig. 2), in chamber 21, 22, 23, pipe 73, chambers 24, 25, 26, 27, pipe 74, chambers 28 29, 30, to outlet part 75. The second cooling circuit is a mirror image of the first. In an alternative construction, containers are mounted on separate carriers movable to register with the press axis.
Patent GB-1324396-A (GB)
Title: Electronic control device
IPC: G07F7/00
Filed: 1970-08-10
Abstract: 1324396 Controlling sales C BEDJAI and PANTOINE 10 Aug 1970 [11 Aug 1969] 38430/70 Heading A4T [Also in Division G4] An electronic control device for a self-service apparatus e.g. for dispensing fuel or in a rented car comprises at least one means for transmitting coded signals corresponding to programmed information, the transmitting means having means for controlling starting and stopping of the signal transmission, and having means for restricting transmission to a predetermined period, the transmitting means being an independent unit and a fixed receiving means co-operating with the transmitting means and adapted to receive signals transmitted by the transmitting means, the receiving means being provided with means adapted to ascertain that the signals are in agreement with the code of the programmed information, and, if so, to allow closing of an electric circuit to start the apparatus. As shown, cassette 1 contains magnetic tape 2 supported on feed and take up reels 3 and 4, the tape having the coded information recorded thereon. Reading heads 5, 5' read this information and transmitters 9 transmit it to receivers 11, 11', as a high frequency waves modulated by a low frequency signal corresponding to the information. Receivers 11, 11' receive the signal, and low-frequency detectors 12, 12' supply the information signal to selective filters 13, 13'. The current which passes the filters, i.e. the information from the tape, energizes magnetic relays to close an electric circuit to allow operation of the apparatus. The cassette, 1, also contains erasing heads 6, 7 and button 8 to switch on motor to drive take-up spool 4 for a predetermined time. Cassettes with a reel of tape having information stored on it may be purchased and, when all the tape has passed the reading and erasing heads, a new tape cassette must be purchased to operate the machines. The transmission 10 may be by radio-type waves when high-frequency modulation is used but a pair of contacts may be provided to allow "plugging in" of the cassette to provide direct transfer of actuating signals. The tape may be arranged to pass the reading heads at different speeds to allow control of different services.
Patent GB-995020-A (GB)
Title: Ice-cream mixer for dispensing ice-cream in portions out of a freezing container kept under pressure
IPC: A23G9/30
Filed: 1962-10-11
Abstract: 995,020. Ice cream freezers. IREKS G.m.b.H. Oct. 11, 1962 [Oct. 13, 1961], No. 38600/62. Heading F4H. In an ice-cream freezer comprising a pump which supplies a mixture for air and ice-cream mix from a supply container to a freezing chamber, the pump is controlled by means responsive to the air pressure in the freezing chamber. As shown, a cooled supply container 1 is connected to a freezing cylinder 19 by a conduit 14 in which the lower end of a stand pipe is disposed, the conduit having inlet and outlet connections 8 and 9 to a rotary pump 10. The upper end of the pipe 2 is disposed above the level of mix in the container 1, apertures 3 for the admission of the mix are disposed in the pipe adjacent the bottom of the container and the outlet 6 from the pipe opens adjacent the pump inlet 8. The lower end of the pipe is secured to a disc 7 which separates the suction and discharge sides of the pump when the pipe is inserted in the conduit 14. A pressure responsive switch 16 is connected by a conduit 15 to the discharge side of the conduit 14 and is arranged to switch off the pump 10 when the air pressure in the freezing cylinder exceeds a predetermined maximum value and to restart the pump when the pressure falls below a predetermined minimum value. The pressure valves are adjustable. A pressure gauge 17 is also connected to the conduit 15. A spring rod 4 is provided in the pipe 2 to close one of the apertures 3 and regulate the flow of mix when desired and the pump outlet 9 is provided with a non-return valve 13. The pump 10 is formed of plastics material and the complete unit is housed in an insulated container 31 and has a lid 29 with an air filter 30. The freezing cylinder includes a helical mixer, a scraper and dispensing means (Fig. 2, not shown).
Patent GB-915417-A (GB)
Title: Squelch circuit
IPC: H03G3/34
Filed: 1961-10-30
Abstract: 915,417. Semi-conductor amplifying circuits. GENERAL ELECTRIC CO. Oct. 30, 1961 [Nov. 28, 1960], No. 38740/61. Class 40 (6). A squelch circuit comprises a parallel tuned circuit 10, 11 which includes a tunnel or backward diode 13 the bias on which is changed so as to change the diode from its low to its high impedance state thereby changing the " Q " of the tuned circuit. The diode bias is derived from the a.g.c. circuit of a receiver and the tuned circuit forming the load of a transistor amplifier 1, so that variation of the bias on the tunnel diode due to variation in a.g.c. will vary the gain of the amplifier. The bias circuit for the diode comprises resistors 15, 16 and a parallel tuned circuit may be included between their junction and the point 18 to increase the impedance, Fig. 6 (not shown). Either the diode or this latter tuned circuit may be shunted by a resistor to prevent instability.
Patent GB-857157-A (GB)
Title: Improvements in or relating to processes for production of low permeability carbon
Inventor: BOYLAND DONALD ARTHUR
Filed: 1957-12-13
Abstract: A porous carbon or graphite article is impregnated with a sugar e.g. sucrose, and the sugar carbonised.  The sugar may be employed molten or dissolved in acetic acid or water.  An aqueous solution may have a density of greater than 1.4 gm./c.c.  The pores may be evacuated or filled with water vapour before impregnation, which may be effected under pressure.  Carbonisation may be effected in an atmosphere of air, nitrogen, or helium at a temperature of 250 DEG C. and a pressure of 1200 p.s.i. during a period of 1 hour or more.  The article may be immersed in water during carbonisation.  The article may be subjected to further heating in one or more stages, in a vacuum, in a nitrogen atmosphere, or in air while packed in graphite powder, to a temperature of 1000 DEG C. in a period of 2-3 hours. Still further heating to graphitisation temperature (about 3000 DEG C.) may be effected.
Patent GB-1284767-A (GB)
Title: Steam sterilizer
Inventor: BARANOWSKI HANS-PETER
IPC: A61L2/24
Filed: 1969-08-04
Abstract: 1284767 Steam sterilizer H P BARANOWSKI 4 Aug 1969 [2 Aug 1968] 38870/69 Heading A5G A double-jacketed, closed circuit, steam sterilizer comprises a sterilization chamber 1 surrounded by a steam jacket 2 and 3 which, during sterilization, is filled partly with steam 4 and partly with water, which may be heated by the heater 5. The steam-filled space 4 communicates with the chamber 1 via pipe 9 and with a closed water container 8 via pipes 6 and 7 and the associated metering pump 14. The chamber I also communicates with container 8 via a 2-branched pipe system 10, a two-way valve 11 connecting the chamber and container either via branch 10a, which contains a cooling device 13, or via branch 10b, which includes a thermostatic cut-off valve 12 arranged to close the connection when the temperature of sterilization (e.g. 138‹C) is reached. In operation, valve 11 is set to open branch 10b and heating is begun when the steam flowing therethrough reaches the correct temperature, valve 12 closes. At completion of sterilization, the valve 15 in pipe 9 is closed and branch pipe 10a is opened (10b then being closed). Steam then passes from the chamber 1 to the space in container 8 and the pressure is equalized in chamber, jacket and container. Modifications are described with reference to Figs. 2 and 3 (not shown), in which the controls are suitably grouped for manual operation (Fig. 3) and in which there is a simplified connection between the water-container and the lower (water-containing) portion of the jacket (Fig. 2).
Patent GB-1009947-A (GB)
Title: Improved shovel
Inventor: MAIER HANS ULRICH
IPC: A01B1/02
Filed: 1963-10-03
Abstract: 1,009,947. Shovels. B.P. BENZIN UND PETROLEUM A.G. Oct. 3, 1963 [Nov. 21, 1962], No. 38941/63. Heading AlB. A shovel comprises a blade 1 provided with strengthening ridges 1b, 1c and having its side edges 1alpha bent upwardly, a plate 2 being secured, e.g. by riveting or weld ing, to the blade and carrying a handle socket 2alpha. The rear edge 1d of the blade is serrated and the socket 2alpha strengthened by a rib 3alpha. The shovel blade and handle 3 are of steel and a hand grip 4 and sliding sleeve 5 of plastics material are provided.
Patent GB-852255-A (GB)
Title: Improvements in and relating to industrial gas-filtering plant
IPC: B01D46/44
Filed: 1957-07-30
Abstract: 852,255. Gas filters. BAINBRIDGE, C. A., and FARRINGDON WORKS & H. PONTIFEX & SONS Ltd. March 21, 1958 [July 30, 1957], No. 38989/59. Divided out of 852,254. Drawings to Specification. Class 8(2). The description is similar to Specification 852,254 but the claims differ. Specifications 802,764 and 852,256 also are referred to.
Patent GB-1210801-A (GB)
Title: Improvements in or relating to the production of foamed materials
Inventor: WILSON ARTHUR DERRICK
IPC: B29C44/56
Filed: 1966-09-01
Abstract: 1,210,801. Moulding foamed articles with impervious skins. VITAFOAM Ltd. 1 Nov., 1967 [1 Sept., 1966], No. 39056/66. Heading B5A. [Also in Division B2] A foam article is provided with an impervious skin by applying to the surface a delayed-action gelling agent, i.e. one whose action takes a predetermined amount of time, and simultaneously or subsequently applying a skin-forming mixture. The gelling agent permits penetration of the said mixture to a predetermined extent into the foam. The method may be carried out by (i) spraying or painting a dried foam block firstly with the gelling agent and then with the skin-forming mixture; (ii) spraying a mixture of the gelling agent and skin-forming mixture on to the block; or (iii) applying a mixture of the gelling agent and skin-forming mixture to the surface of a mould, into which the foamforming mixture is then poured to form the article. The skin may be applied as more than one coating. The foam article may be natural or synthetic rubber or polyether. The skin may be a polyisoprene latex and the gelling agent may be an ammonium acetate-sodium silicofluoride mixture.
Patent GB-1521118-A (GB)
Title: Oxidation catalyst and use thereof in making methacrylic acid
IPC: C07C51/25
Filed: 1975-09-24
Abstract: 1521118 Oxidation catalysts NIPPON KAYAKU KK 24 Sept 1975 [24 Sept 1974 (2)] 39159/75 Heading B1E [Also in Division C2] Calcined catalysts for the vapour phase oxidation of methacrolein to methacrylic acid in the presence of steam consists of Pd, P, Sb and O and, optionally, Bi, Pb, Cr, Fe, Ni, Co, Mn, Sn, U and/or Ba and/or a carrier.
Patent GB-1486086-A (GB)
Title: Sawtooth wave form voltage generating circuit
IPC: H03K4/56
Filed: 1975-09-25
Abstract: 1486086 Automatic voltage control APPLIED POWER AUSTRALIA Ltd 25 Sept 1975 [25 Sept 1974] 39339/75 Heading G3R A sawtooth voltage is generated by periodically charging a capacitor which is connected to an output terminal through a variable gain amplifier. Input pulses serve to discharge the capacitor and also to compare the instantaneous value of the output voltage with a reference voltage and adjust the amplifier gain if any difference is detected. As shown, an internal combustion engine test circuit providing an ignition cycle display timebase includes an integrated circuit amplifier 11 and capacitor 12 responsive to a current supply 13 to produce a linear ramp waveform (a) which is fed through a multiplier 14 to produce an output sawtooth voltage (e). Ignition pulses (d) trigger a sample pulse generator 15 which causes a further pulse generator 19 to discharge the capacitor 12 through a switch 21, and also closes a switch 20 in the output circuit of an amplifier 17 comparing the peak voltage of the output sawtooth (e) with a reference voltage. Any difference signal is supplied through an amplifier 16 to adjust the gain of the multiplier 14 in order to stabilize the sawtooth peak voltage independently of pulse frequency. The current value of the multiplier gain is stored by a capacitor 18. The output of amplifier 16 is also used to provide tachometer drive signals.
Patent GB-1129686-A (GB)
Title: Process for producing hollow fibre-reinforced mouldings
IPC: D04H3/073
Filed: 1966-09-05
Abstract: 1,129,686. Moulding hollow articles. TAIYO KOGYO CO. Ltd. 5 Sept., 1966 [9 Sept., 1965], No. 39596/66. Heading B5A. Hollow fibre-reinforced mouldings are produced by coating a mandrel with a film or sheet of synthetic resin, winding on to said film or sheet synthetic resin fibres having a softening or melting point substantially the same as or close to that of the film or sheet, and heating the film or sheet and fibres to a moulding temperature at which the film or sheet softens or melts so that the film or sheet and fibres are fused together. The film or sheet and fibres may be of the same material, and the mandrel may be spherical, cylindrical or have a rectangular cross-section. Additional fibres, e.g. natural or metallic, may be wound which do not melt or soften at the moulding temperature.
Patent GB-978795-A (GB)
Title: Improvements in or relating to distillation of metal solutions
Inventor: LANG JAN ZBIGNIEW
IPC: C22B5/16
Filed: 1961-10-25
Abstract: <PICT:0978795/C6-C7/1> In a process for recovering a light metal (e.g. calcium, sodium or cadmium) from a liquid solution containing the light metal and a heavy metal (e.g. copper, lead, uranium or thorium) by distillation in a still 5, maintained under vacuum by line 10, the solution is drawn up into the still via line 4 owing to the difference in pressure between the supply vessel and the still; the light metal evaporates from the solution and condenses on condenser 6, and the depleted solution flows out of the still via line 3 owing to the difference in pressure between the still and the receiver.  In an example, calcium sulphide is electrolysed in cell 1 using molten copper-calcium alloy as cathode, whereby the calcium, produced by electrolysis, dissolves in the molten alloy to form a solution of calcium in copper which is drawn up line 4 into still 5. The still is heated, preferably electrically, to a temperature of 800-850  DEG C. When the cell 1 is at atmospheric pressure and the still is operated at a pressure of 5-0.1 mm. Hg., pipes 3 and 4 are 3 metres and 3.5 metres long, respectively. Condenser 6 is cooled by gas, introduced through line 7.  When a sufficient quantity of calcium has collected on the condenser, the vacuum in the still is broken by admitting argon via valve 12, so that all the solution in the still drops down pipes 3 and 4 into cell 1.
Patent GB-1518410-A (GB)
Title: Boiler
IPC: F24H9/18
Filed: 1976-09-24
Abstract: 1518410 Solid fuel hot water boilers SOC D'ETUDES ET DE CONSTRUCTIONS DE CHAUDIERES EN ACIER 24 Sept 1976 [24 Sept 1975] 39767/76 Heading F4A A boiler for hot water comprises a solid fuel hopper 20 which feeds a water-cooled grate 23 along which fuel is pushed by a water-cooled mechanical pusher 21, primary and secondary fans 62, 61 delivering low pressure and high pressure air to below and above the grate, and a series of heat exchange units (Fig. 2) 30, 40, 50, 60 having at least one lower water inlet 64a and two upper water outlets 65a, 65b; the action of secondary fan 61 being controlled so as to be prolonged beyond the action of the primary fan 62 to burn up combustion gases when the boiler is turned off. The heat exchange units include portions, e.g. 30a, 40a of adjacent units which are arranged close together. Two gas outlets are provided at 60a, 60b.
Patent GB-1213956-A (GB)
Title: Improvements in electric cables
IPC: G01V1/20
Filed: 1969-08-11
Abstract: 1,213,956. Buoyant cables. SCHLUMBERGER TECHNOLOGY CORP. 11 Aug., 1969 [12 Sept., 1968], No. 40065/69. Heading H1A. A cable for marine seismic exploration is constructed around a torque balanced wire rope 11 with an electrical insulating and moisture sealing jacket 12 of rubber, neoprene or plastics. Twisted pairs of conductors 19 are wound in the manner of the lays in a wire rope about the rope 11 in a polysulphide filler layer 13 and are connected to transducers 4 or to depth detector sections (not shown) spaced along the cable. A layer of cloth tape 14 permits handling during manufacture while the polysulphide is tacky, and a continuous helical coil 15 of cellular filler such as polyethylene is of similar thickness to the cylindrical wall of the transducer and retains the latter longitudinally. A plastics tape layer 16 and an extruded layer 17 of rubber, neoprene or plastics seal the cable against moisture, and the outer layer 18 of cellular polyethylene gives the cable a neutral or slightly positive buoyancy. Means may also be provided to maintain the entire cable at a constant depth.
Patent GB-1183703-A (GB)
Title: Battery Charging Systems for Use in Road Vehicles.
Inventor: WRIGHT MAURICE JAMES
IPC: H02J7/16
Filed: 1966-07-08
Abstract: 1,183,703. Automatic voltage control. JOSEPH LUCAS (INDUSTRIES) Ltd. July 6, 1967 [July 8, 1966; July 18, 1966; Sept. 9, 1966], Nos.30721/66, 32123/66 and 40314/66. Heading G3R. A battery charging system for a road vehicle comprises; a generator 24, e.g. an alternator with a rectified output; a voltage regulator R, including n. p. n. transistors Fig. 1 (not shown), connected in series with a resistance 44, e.g. a warning lamp, across the battery 21, the regulator controlling in known manner the current flow through the generator field winding 31 so that the output voltage of the generator is maintained constant; an ignition switch 23 connected, in series with the electrical load 22 of the vehicle, across the series combination of regulator and resistance; a switch 43, e.g. the contacts of a relay 46, separate from but controlled by the ignition switch 23 for ensuring that the regulator dissipates power only when the ignition switch is closed; and a further switch 45, e.g. relay-operated contacts, operable when the generator is producing an output for effectively short-circuiting the resistance 44. In operation, when the ignition switch is closed and the generator starts up, the voltage regulator first is supplied from the battery 21 by way of the lamp 44 which is thus also energized; as soon as the generator produces an output, the switch 45 closes to short-circuit and extinguish the lamp 44, the field current then being no longer limited by the resistance of the lamp. In another embodiment Fig. 3 (not shown) the resistance 44 is constituted by a resistor and the switch 43 by a transistor, the generator-controlled switch being arranged to complete a circuit to a warning lamp through the ignition switch when the generator is not producing an output. A further embodiment, utilizing a regulator having p. n. p. transistors, is described with reference to Fig. 4 (not shown).
Patent GB-403861-A (GB)
Abstract: 403,861. Gas-control valves. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart. Germany. May 4, 1933, No. 12989. Convention date, May 9, 1932. Addition to 403,632. [Class 135.] The gas control valve 12 described in the parent Specification, in which devices such as non-return valves and throttles for influencing the speed of control of the valve are provided in a partition wall 15 separating a control chamber 14 from a control pipe 18, is modified by arranging these devices as complete components in casings 36 which are interchangeable and independent of the remaining parts of the valve. The casing 36 has an aperture 39, contains a spring-loaded non-return valve, 22 and is closed by an apertured sprung-in cover 37. When the switch or valve C is closed, gas supplied by the pipe 18 from the main supply conduit 10 accumulates in an antechamber 16, forces open the valve 22, and quickly causes the diaphragm 13 to close the valve 12 down on to the pipe 11 leading to the main burner. If however the control C is open, the gas in the chamber 14 can only leak out slowly through a throttle opening 21 in the valve 22, thus causing the valve 12 to open slowly. The pipe 18 has a throttle 19. In a modification, the valve 22 comprises a metal foil held between cardboard stiffening rings in the casing, the cover of which has oblique slots, to prevent gas leaving the control chamber from impinging directly on the foil, and projections to limit the lift of the foil. The foil has a throttle opening and seats on a rim inside the casing.