baber/WOPTO huggingface dataset:
Patent GB-421896-A (GB)
Abstract: 421,896. Cylinders. BEAVIS, M. J., 2, Ernest Road, Hornchurch, Essex. July 10, 1933, No. 19477. [Class 7 (ii)] In a two - stroke engine cylinder, having pistoncontrolled admission ports 5, two or more exhaust valves 8 open separately during successive cycles. If only two valves, or groups of valves, are provided, they are operated alternately by a cam-shaft driven at half engine-speed. Some or all of the admission ports 5, which extend in a belt round the cylinder bore, may be directed tangentially upwards or downwards ; they may have Venturi form. The piston may have a dome, or cone shaped face. As shown, crank-case compression is used, the ports being supplied with mixture by a common transfer passage 7, 6, but each port 5 may have a separate transfer passage.
Patent GB-1037821-A (GB)
Title: Improvements in or relating to gas-fired appliances
Inventor: RADLEY STEWART ALBERT
IPC: F24H9/02
Filed: 1961-11-24
Abstract: 1,037,821. Balanced flue gas-fired appliance. RADIATION Ltd. Nov. 5, 1962 [Nov. 24, 1961], No. 42196/61. Heading F4W. A balanced flue gas-fired appliance, Fig. 1, comprises a water heater 4, mounted on a balanced flue terminal unit consisting of an elongated hollow box 1 adapted to be secured in a recess in, or on the surface of, a wall 15 and having at the upper end one or more air inlets 5 and at the lower end an aperture 13 communicating with a burner box 16 of the appliance. An outlet duct 9 for the combustion products is arranged transversely of the box 1 at its upper end and terminates adjacent the inlet 5. A main casing 23 extends over both the appliance and the terminal unit. The casing 23 is held in place by locating brackets 24 and a gas control knob bushing 25 removably secured to a shaft 26 of the gas control mechanism of the appliance. When the box 1 is secured to the surface of the wall 15, Figs. 2 and 4 (not shown) a supplementary casing is disposed in the gap between the main casing 23 and the wall 15. The supplementary casing may take the form of an apertured tray or a peripheral wall provided with mounting tabs. The heater is connected to a gas pipe 21 and a water pipe 22.
Patent GB-1373392-A (GB)
Title: Process for removing electrolytes from water
IPC: B01D61/46
Filed: 1971-09-14
Abstract: 1373392 Water purification by electrodialysis TOKUYAMA SODA KK 14 Sept 1971 [14 Sept 1970] 42791/71 Addition to 1238656 Heading C7B In a process of removing electrolytes from water by electrodialysis using an anionic and a cationic exchange membrane one ion exchange membrane comprises an insoluble, infusible synthetic polymer having ionizable groups bonded thereto. At least one surface of the membrane contains a substance having an electric charge of opposite sign to the ionizable groups of the membrane. The charged substance, which should be at least M.W 400, is incapable of passing through the pores of the membrane. The amount of substance present on the surface is 2x10<SP>-6</SP> to 0.5 m. eq./dm2 and it may be electrostatically absorbed or covalently bonded. In one embodiment a polymer of 95 parts styrene, 5 parts divinybenzene 100 parts P.V.C, 25 parts dioctyl phthalate and 1.5 parts benzoyl peroxide contains phophorous acid groups and has one surface coated with polyethyleneimene.
Patent GB-1313917-A (GB)
Title: Controlled hysteresis integrated circuit switching circuits
IPC: H03K17/60
Filed: 1970-09-08
Abstract: 1313917 Transistor switching circuits LANDIS & GYR AG 8 Sept 1970 [16 Sept 1969] 42967/70 Heading H3T An integrated bi-stable includes an amplifier 9, a current Is source 12 and means such as T19 responsive to the sign of the amplifier output to switch the source 24 in circuit with the amplifier input by way of R14, R15 to produce current. flow I H  (from R21) through R15 in opposition to I S , and thereby to establish hysteresis. An input voltage U G  is applied across the inputs of amplifier 9 and a threshold voltage is also applied by virtue of current flow through R15 from a constant current source 12 to a Zener diode 16, the latter also drawing current from a resistor R21. Starting from a condition where T19 of an emitter-coupled pair T19, T20 is held off and T20 on by the amplifier output, the input U G  goes negative until T19 is turned on, its collector current flowing from R21 through R15, R14 in opposition to the threshold setting current. This enhances the switching of amplifier 9 and of T19, T20 to the opposite state. Also, the voltage drop across R15 having been removed or reversed, the change required in U G  to reset the circuit involves a hysteresis which is adjustable by varying the current I H  from 24 A switching circuit 26 is driven by amplifier 9 and controls a relay 29, and also provides feedback through a time delay circuit 30 to the input of amplifier 9. A second, similar bi-stable using an amplifier 8, T17, T18 and a switching circuit 25 has its threshold controlled by R14 and a current source 23 for T17, T18, thus providing a two-threshold circuit responsive to an input passing outside these threshold levels.
Patent GB-936234-A (GB)
Title: Improvements in or relating to electrodes for electric cells or batteries
IPC: H01M4/34
Filed: 1959-12-17
Abstract: 936,234. Batteries. YARDNEY INTERNATIONAL CORPORATION. Dec. 17, 1959 [Dec. 17, 1958], No. 42995/59. Drawings to Specification. Class 53. A battery having a silver electrode is improved by electrolysing the uncharged or partly charged electrode to the argentic oxide level and subsequently heating the electrode to at least 50‹ C. until the discharge potential of the active material has been reduced to the argentous oxide level.
Patent GB-1479690-A (GB)
Title: Production of spherical metal oxide and/or metal carbide particles
IPC: C04B35/626
Filed: 1974-10-04
Abstract: 1479690 Spherical metal oxides and/or carbides KERNFORSCHUNGSANLAGE JœLICH GmbH 4 Oct 1974 [16 Oct 1973] 43113/74 Heading C1A Spherical particles containing at least one metal oxide and/or metal carbide, e.g. those of U, Th or Pu are obtained by introducing a solution or sol of at least one metal salt, the solution or sol having an anion deficiency (as defined) of between 20 and 90%, into a liquid ketone phase disposed above an aqueous ammonia solution thence recovering the particles formed and sintering them. Carbide containing particles are obtained by adding colloidal carbon to the solution or sol. Spherical particles containing (i) thorium and (ii) thorium and uranium are exemplified.
Patent GB-1489414-A (GB)
Title: Copying machine having a copy sheet receiving means
IPC: G03B27/14
Filed: 1974-10-04
Abstract: 1489414 Delivering sheets CANON KK 4 Oct 1974 [5 Oct 1973] 43222/74 Heading B8R A copy sheet receiving tray comprises a mount portion 7, Fig. 2, secured to a copying machine 5 adjacent a sheet discharge opening 6, a fixed tray portion 8 secured to the portion 7 for receiving short sheets A, and a movable tray portion 9 for receiving long sheets B having a pin 10 passing through an elongated hole 11 in the portion 7 so that the portion 9 can be swung upwards into an inoperative position against the front wall of the machine 5, in which position sheets can pass through an opening 9a in the portion 9. A guide surface 13 of the portion 7 co-operates with a pin 12 on the portion 9 to define the two extreme positions of the portion 9. In another form, Fig. 6, the tray comprises a single movable portion 1 pivoted at 3, and has an opening 21 positioned so that when the tray is in its upper inoperative position, sheets emerging from the copying machine 2 can pass through the opening and be deposited on the floor. The opening 21 may be replaced by a cut-out 22, Fig. 7.
Patent GB-976004-A (GB)
Title: Sifting machine
IPC: B07B1/18
Filed: 1962-11-15
Abstract: 976,004. Washing granular material. L. HOFMEISTER, E. MENKE-SCHUBERT, G. WOLFF, and G. KLAUS, [trading as MASCHINENUND APPARATEBAUWOLFF G.m.b.H. & CO.]. Nov. 15, 1962 [Jan. 9, 1962], No. 43258/62. Heading B2H. In a machine for washing and sieving gravel a coaxial series of rotating drum sieves 12, 20, and 26 in a central structure 1 has a surrounding drum casing 3, the sieve 12 having the largest mesh and discharging its residue directly through the outer casing 3 by way of a channel 16, Fig. 3. Material discharged from sieve 12 accumulates in the closed end portion 15 and falls out through channel 16 whenever this passes underneath the machine. The outer casing 3 in line with sieve 12 comprises a fine sieve 13 for extracting sand to a hopper 10 before the material passes into a washing drum 17 with paddles 22. From the drum 17 the material is fed by a scoop 19 into sieve 20 of intermediate mesh, the residue falling out through the outer casing by way of channel 21 and the fines being washed in the outer drum before being lifted by scoop 24 into the fine sieve 26 for a final extraction of sand into hopper 11. Water is introduced by pipes 28, 29 with a sluice 30 to the feeding shoot 9. The machine is inclined to feed gravel through.
Patent GB-916391-A (GB)
Title: Improvements in or relating to electric substation arrangements
Inventor: WORLOCK ALFRED HENRY
IPC: H02B7/06
Filed: 1959-12-23
Abstract: 916,391. Switchgear structures. GENERAL ELECTRIC CO. Ltd. March 22, 1961 [Dec. 23, 1959], No. 43687/59. Class 38 (5). A prefabricated electric sub - station comprises a number of adjoining rooms arranged in line and containing electrical gear arranged in sequence from one end, the input end, to the other end, the output end. In Fig. 1, rooms 1, 3, 4 and 5 house, respectively, high voltage switchgear 9, a transformer 10, rectifiers 11 and output circuitbreakers 12. An amenities room 2 houses signalling equipment 18, a distribution board 19 and batteries 20. The external walls of the rooms 1, 2, 4 and 5 are formed from panels each comprising spaced sheets of fire-retarding boards, the space between the boards being filled with fibreglass and aluminium sheets being fixed to the outer faces. The four walls of the transformer room 3 are made from concrete blocks and, like the panels, are mounted between vertical aluminium posts. The partition walls 17 and 33 are of ships board and the roof is of corrugated aluminium sheeting.
Patent GB-1270565-A (GB)
Title: Operation of chlor-alkali diaphragm cells
IPC: C25B1/46
Filed: 1969-09-03
Abstract: 1,270,565. Chlor-alkali diaphragm cells. HOOKER CHEMICAL CORP. Sept.3, 1969 [Sept. 23, 1968], No. 43727/69. Addition to 1, 174, 264. Heading C7B. A chlor-alkali diaphragm cell or (as shown) a group of such cells is operated by feeding a solution of alkali metal chloride, e.g. NaCl, KCl or LiCl, via lines 12-14 to the anode compartment of (a or ) each cell 16, preferably at a rate in excess of that flowing through the diaphragm e.g. of asbestos, chlorinated P. V. C. or polypropylene, to the cathode compartment, withdrawing cell liquor from (the or) each cathode compartment via lines 35-37 to a salt/ caustic regulator 42, to increase the ratio of alkali metal chloride to caustic e.g. to between 0À5 and 2 by adding concentrated alkali metal chloride solution, after feeding part via line 44 to an evaporator for recovery of caustic, and then recycling to (the or) each cathode compartment via lines 48-50. Excess electrolyte withdrawn from (the or) each anode compartment via lines 18-22 and 26 may be replenished with alkali metal chloride in saturator 28 and treated with HCl 34, and then recycled via line 10 back to (the or) each anode compartment. Preferably both the withdrawn anolyte and catholyte liquors are cooled by heat exchangers 32 and 46 prior to recycling.
Patent GB-1024876-A (GB)
Title: Improvements in and relating to the heat treatment of semiconductor material
IPC: C03C17/23
Filed: 1963-11-03
Abstract: A molten zone of silicon is observed through a window of quartz glass coated with a transparent layer having a high absorption for thermal and/or infra red radiation so as to prevent condensation on the window.  The layer may be of tin, indium or cadmium oxide.  It may also contain antimony, phosphorus, boron, fluorine, copper, cadmium, vanadium, chromium, manganese, or cobalt.  The layer may have a thickness of 0.1 m .  A solution of the halide of the metal in alcohol or concentrated hydrochloric acid may be sprayed on the heated quartz glass.  The window may be annular or arcuate in cross-section.  In the latter case, a current may be passed through the layer to provide additional heating.  The window may reach a temperature of 600  DEG C. Crystal-pulling, crucible- or floating-zone melting, or crystal growing by vapour deposition on a molten drop may be controlled by the method.  According to the Figure (not shown), a quartz tube 3 contains a silica crucible 6 embedded in a graphite block 5 which is heated by an induction coil 14 surrounding the tube, a crystal 17 of silicon being pulled from a melt 16 in the crucible by means of a rod 10.  An annular surface 15 of the tube is coated with a layer of a material having a high absorption for thermal and/or infra red radiation which prevents condensation on the corresponding portion of the inside surface of the tube 3.  The crucible is surrounded by a cylindrical radiation screen 8 of sintered quartz and the rod is surrounded by a quartz glass tube 11.  An atmosphere of argon is maintained via an inlet 12 and an outlet 13.  The rod is pulled upwards at 1 mm./min. and is rotated at 60 r.p.m.
Patent GB-1331463-A (GB)
Title: Blades for use for example in fans turbines or pumps
IPC: F04D29/28
Filed: 1970-09-14
Abstract: 1331463 Centrifugal fans and pumps; rotor blades CABOT CORP 14 Sept 1970 [12 Sept 1969] 43807/70 Headings F1C and FIT A rotor-mountable blade has an essentially flat surface which serves as a working surface for propelling finely-divided solids and comprises substantially parallel raised ribs 20 extending across the flat surface and spaced apart along the radially extending dimension of the blade, the exposed surface of each rib containing a more wear resistant material than the flat surface. The ribs may be brazed or bonded to grooves 19 and be of steel coated with tungsten carbide or may be made, e.g. by sintering, entirely of wear resistant material. The wear resistant coating may be applied by a plasma spraying process. The angle # is 5 degrees to 30 degrees and spacing x is ¢ to 2 times the width of the rib base 22. The blade may be used in fans, turbines or pumps.
Patent GB-1047780-A (GB)
Title: Improvements in and relating to memory decoupling circuits
IPC: G11C7/02
Filed: 1963-11-07
Abstract: 1,047,780. Magnetic storage devices. RAYTHEON CO. Nov. 7, 1963 [Nov. 14, 1962], No. 43954/63. Heading H3B. In a magnetic memory including a plurality of magnetic units arranged in an array, each unit comprising a block of magnetic material having non-intersecting orthogonally disposed interrogate and storage holes threaded with an interrogate and bit write/sense conductor respectively, means are provided for decoupling the bit write current generating means from the bit conductors during an interrogate current pulse. The magnetic core memory elements are arranged in rows and columns, Fig. 1 (not shown), with a bit write/sense conductor passing through the aligned storage holes and an interrogate conductor passing through the aligned interrogate holes, one row 11 of the array being shown in Fig. 2. The bit driver control 14 is connected to the bit write/ sense conductor 13 through a decoupling circuit comprising back biased diodes 21, 22, 26, 27, the biasing potentials being such that during data read-out operation no signals of sufficient magnitude to overcome the back bias potentials on the diodes are propagated from control 14 and the only signals received by data read-out 16 are due to the signals induced in conductor 13. In order to write into the rows 11 the appropriate polarity pulse of sufficient magnitude to overcome the back bias potentials is applied to switches 33, 35, 37, 38 so that either diodes 21, 26 conduct or diodes 22, 27 conduct. Reference has been directed by the Comptroller to Specification 927,905.
Patent GB-969493-A (GB)
Title: Flexible foot covering and method of making the same
IPC: A41B11/00
Filed: 1960-12-22
Abstract: 969,493. Oversocks; slippers. SCHOLL MFG. CO. Ltd. Dec. 22, 1960 [Jan. 21, 1960], No. 44153/60. Heading A3B. A sole part of cushioning material e.g. foam, latex, sponge, rubber, &c., is bonded directly without adhesive on to one face of a one-piece slipper of stretchable fabric. The cushion 7 can be worn inside as an insole Fig. 3 or outside by turning the inner face of the sole portion 3 of the slipper shown in Fig. 3 is exposed and the slipper is fitted over the lower mould member 9, 10. The cushioning material is moulded directly on to the sole portion 3 and allowed to partially permeate through the fabric thereof. A smooth covering 8 e.g. leather, plastic or tightly woven fabric can be secured over the sole part 7 as in Fig. 3. Arch supporting elevations can be moulded with the insole 25 by use of an upper mould member 17 which contains depressions, Fig. 9. When the slipper is to be used mainly as a bedroom slipper, a tread is provided on the undersurface of the sole, portion 3 of the fabric slipper as in Fig. 13 by supporting the sole portion at spaced locations and allowing the cushioning material to pass entirely through the unsupported areas. The face of the lower mould 10 is provided with deformations of any desired pattern to achieve this.
Patent GB-1219696-A (GB)
Title: Improvements relating to neutron-absorbing materials and methods for their production
IPC: G21F1/02
Filed: 1969-09-05
Abstract: 1,219,696. Reactor control rods; radiation absorbing materials. BROWN, BOVERI/ KRUPP REAKTORBAU G.m.b.H. 5 Sept., 1969 [5 Sept., 1968], No. 44159/69. Headings G6C and G6R. In a high temperature nuclear reactor control rod, a boron compound is distributed through a metal matrix, the melting point of the compound being higher than that of the matrix. The compound may be boron nitride, ferroboron or chromium boride and the matrix may consist of copper, aluminium or cupro-nickel. As the boron compound does not become molten during the formation, new compounds are not formed with the metal of the matrix and embrittlement is prevented.
Patent GB-1138749-A (GB)
Title: A device for covering the outlet aperture of a gate or feeder in casting moulds
IPC: B22C9/08
Filed: 1966-10-04
Abstract: 1,138,749. Moulds. BUDERUS'SCHE EISENWERK. 4 Oct., 1966 [17 Dec., 1965], No. 44241/66. Heading B3F. [Also in Division B1] In a casting mould a ceramic filter 5 for preventing slag being carried into the mould cavities during pouring is embedded in a foamed synthetic plastics material 6 at the exit from a gate or feeder 4 to cause an initial damming up during pouring to allow slag to separate-off. The synthetic material burns away and then allows the poured liquid metal to pass through the filter to fill the mould cavities. After the pouring has stopped the filter 5 rises to the surface and prevents rapid heat losses therefrom and promotes the feeding effect. The mould comprises an upper box 1, a lower box 2 and a core 3. The foamed synthetic plastics material 6 can be the pattern for forming the feeder 4 in the upper box 1.
Patent GB-1370662-A (GB)
Title: Incubator for babies
IPC: A61G11/00
Filed: 1971-12-31
Abstract: 1370662 Automatic control of temperature DRAGERWERK A G 31 Dec 1971 44294/71 Heading G3R [Also in Divisions A5 and F4] An incubator has substantially the same constructional features as that described in patent Specification 1232048, but the arrangement is such that the control device (6), Fig. 1 (not shown) is not activated provided that the body temperature remains within a pre-set range c, but if the body temperature is above or below the range c, within ranges d or b, the control device (6) acts to decrease or increase, respectively, the incubator air temperature. One or both limits t 1  and t 2  of range c may be adjustable independently of the other. Alternatively, range c may be of fixed width but adjustable position. The first temperature-responsive device (5) can be placed in the rectum or oesophagus. As in the previous patent, the incubator air temperature is sensed by a second temperature-responsive device (4) and is limited to a range T 1  and T 2 . The ranges b and d may be of fixed or adjustable width.
Patent GB-1240993-A (GB)
Title: Improvements in or relating to unions and methods of forming unions
Inventor: BENSON BRIAN
IPC: F16L47/22
Filed: 1967-09-29
Abstract: 1,240,993. Tube unions. SMITHS INDUSTRIES Ltd. 13 Sept., 1968 [29 Sept., 1967], No. 44411/67. Heading F2G. In a union of a fitting 11 to a tubular member 10, the latter includes an end having a substantially smooth external surface and of pressuredeformable material, and a hollow, cylindrical support member 14 is disposed within the end of the member 10 which includes a part immediately adjacent the end thereof which is corrugated or convoluted transversely of the member. The fitting includes a portion of heatshrinkable material shrunken over the end of the member 10 and the adjacent part of the member to grip the end of the member and to extend into at least one of the corrugations or convolutions. The fitting 11 may be of a polymerized fluorocarbon such as polytetrafluoroethylene, a polyolefine, or a synthetic rubber and the support member 14 may be of aluminium alloy or nylon; the tube may be of polytetrafluoro ethylene. In forming the union, the corrugations may be removed from the end of the member 10 and an epoxy resin adhesive may be applied between the fitting and tube and between the latter and member 14.
Patent GB-960077-A (GB)
Title: Recording and reproducing system
IPC: H03K5/04
Filed: 1961-12-13
Abstract: 960,077. Skew compensating systems. RADIO CORPORATION OF AMERICA. Dec. 13, 1961 [Jan. 3, 1961], No. 44677/61. Heading G4C. [Also in Division H3] In a skew compensating system for data recorded on a magnetic tape, the bits of each character are read out to a register comprising a plurality of stages, one stage being provided for each bit, the reception of the last bit read initiating read out from the register. As described, a data character comprises six bits D0-D5, timing bits T1, T2 being recorded in tracks adjacent the respective tape edges, Fig. 4. Due to tape skewness, the timing bits T1, T2 when read are separated by a time interval called the "skew period". For each character, the bits D0-D5, T1, T2 are applied to a register comprising flip-flops 90-97. Read circuit, Fig. 2. In co-operation with each track is a corresponding head 46 coupled to a wire amplifier 60 and a read amplifier 72. The circuit includes also two Zener diodes 68, 70 connected back-to-back thereby providing a low impedance shunt across the input of the read amplifier 72 when the write amplifier 60 is operative and a high impedance across the input of the read amplifier 72 when the read amplifier is operative. Skew compensating circuit, Fig. 3. The bits of a character read from the tape are applied over lines 80-87 to flip-flops 90-97, the outputs from flip-flops 96, 97 which receive the timing pulses T1, T2, being connected to an "and" gate 100 which is opened at the end of the "skew period" i.e. as soon as all the character and timing bits have been received by the flip-flops 90-97. The output of the "and" gate 100 is connected to a pulse lengthening circuit 106 which may be a known fast recharging integrating circuit, or alternatively be as in Fig. 5 (not shown) (see Division H3). The pulse lengthening circuit provides a lengthened pulse which is applied to an "and" gate 108 to which is applied the output from a monostable multivibrator 104 which is triggered by the delayed output of the "and" gate 100, the delay being to accommodate various timing delays and errors in the circuits. The outputs of the flip-flops 90-95 are applied to integrating circuits 110-115 which serve as pulse stretchers in a similar way to the circuit 106, the outputs of the circuits 110-115 being applied to "and" gates 116-121 enabled by the output from the multivibrator 104 to produce synchronous output data signals, this output serving also to reset the flipflops 90-96. The gate 108 serves to provide timing pulses for use in a computer associated with the tape system.