baber/WOPTO huggingface dataset:
Patent GB-1282685-A (GB)
Title: Prosthetic device
IPC: A61F2/06
Filed: 1970-04-23
Abstract: 1282685 Artificial kidney with antithrombogenetic coating GULF OIL CORP 23 April 1970 [1 May 1969] 19493/70 Addition to 1226833 Heading B1X [Also in Divisions A5 and C1] A device for treating blood outside the body, e.g. a blood dialyser, comprises a substrate having a shape and size functionally desired and a dense isotropic pyrolitic carbon coating containing a carbide additive, for example silica carbide, dispersed therein, said coating covering at least a selected portion of the surface of the substrate and having a density of at least 1.5 grams per c.c. and an apparent crystallite size (as defined) no greater than about 200.
Patent GB-596377-A (GB)
Title: Improvements in or relating to a process and apparatus for the polymerisation of unsaturated organic compounds
IPC: B01J19/18
Filed: 1944-10-10
Abstract: <PICT:0596377/III/1> Bulk polymerization of such as styrene, and vinyl acetate, [Group IV], is effected in the apparatus of Fig. 1. Part "A" is a still having jacket 11.  Down the centre of the still runs a shaft driven by motor 20 and carrying agitators 14, 15 and 16. Monomer is fed from drum 36 into the still and there polymerised during agitation.  The material is nearly solid and is passed by screw 17 to heated zone 42, through reaction zone 44 and further heated by 47.  The solid polymer is now passed through gate 64 and milled in portion C whilst being heated by jacket 74.  Distillate from the still 10 is carried off by 21 and condensed in 23. Specification 432,646 [Group XIX], 513,256, [Group IV], and 593,799, [Group V], are referred to.ALSO:Bulk polymerization of liquid vinyl monomers is effected by agitating the monomers at a temperature at which they are mobile till partly polymerized and the mass is nearly immobile, raising the temperature to restore mobility and complete polymerization, then finally raising the temperature to eliminate unwanted volatiles.  Monomers specified are styrene, vinyl acetate and butyrate, chlorostyrene, methyl, ethyl and propyl styrenes, vinyl naphthalenes and mixtures of these with butadiene.  The process may be carried out in an inert atmosphere or vacuum and the agitation may be continued till the polymerization is complete. The product may be extruded and stretched.  An apparatus is described (see Group III) for carrying out the process. Specifications 432,646, [Group XIX], 513,256 and 593,799, [Group V], are referred to.
Patent GB-1013760-A (GB)
Title: Method of inserting an intermediate layer of cold and heat insulating synthetic resin as a connection between two metal sections
IPC: E06B3/267
Filed: 1964-05-11
Abstract: 1,013,760. Jointing. ALUMINIUM PRESS & WALZWERK MUNCHENSTEIN A.G. May 11, 1964 [May 11, 1963], No. 19528/64. Heading B3V. A method of joining the metal sections 2, 3 of a window, door &c. by means of thermoplastic synthetic resin insulating material 1 comprises heating the sections before or simultaneously with the insertion of the plastic material to a temperature which avoids chilling of the material 1. The sections 2, 3 may be directly heated electrically, under the control of a bimetallic switch 9, or by induction.
Patent GB-585429-A (GB)
Title: Improvements in or relating to means for coiling wire
IPC: B21F3/04
Filed: 1944-10-10
Abstract: 585,429. Coiling helices. BLACKMORE & SONS, Ltd., T., BLACKMORE, J. H., and BLACKMORE, F. A. Oct. 10, 1944, No. 19536. [Class 83 (iv)] In a wire coiling-device, or giraffe, of the kind comprising a hollow shell a within which is a hardened steel stem c having grooves d for the passage of the wire and also a freely rotatable sleeve f surrounding the stem and constraining the wire to follow the grooves d, the resistance to rotation of the sleeve f under the frictional drag of the wire is reduced by the provision of a ball bearing collar h, j, k at the rear end of the shell to take up the axial thrust on the sleeve. The collar projects slightly beyond the end of the rearward extension l of the sleeve and abuts a wire guide member m screwed to the reduced end n of the stem.
Patent GB-851449-A (GB)
Title: Improvements in free piston internal combustion engine actuated hydraulic pumps
IPC: F04B17/05
Filed: 1957-06-21
Abstract: 851,449. Free-piston pumps. JAN1CKE, H. June 21, 1957 [June 23, 1956], No. 19546/57. Class 7(2). [Also in Group XXVIII] In a free piston internal combustion engine driven pump, the pump is so arranged that during the idling operation of the engine no liquid is delivered. In the embodiment shown in Fig. 1 the pumps 8, 81 are disposed at right angles to the engine pistons 2 and are actuated by links 7, 7<SP>1</SP> which during the idle running of the engine transmit little movement to the pump piston but as the stroke of the engine piston increases so the ratio pump stroke: engine stroke increases. The pump pistons control inlet ports in the cylinder wall and during the idle running of the engine the pump pistons do not close these ports; the output of the pump which may be in circuit.with a hydraulic motor is hence proportional to the engine stroke and the quantity of fuel supplied to the engine. Air to the engine inlet ports 5 and the recuperation cylinders 14, 14<SP>1</SP> is supplied by a compressor 30 driven by an exhaust gas driven turbine 11 connected to the engine exhaust ports 6. In a modification Fig. 3, the pump and engine pistons are directly connected, the pump pistons 21, 211 controlling the inlet ports 28, 281 from the motor 23.
Patent GB-1376987-A (GB)
Title: Device for detecting oxidizable materials
IPC: G01N27/44
Filed: 1972-04-27
Abstract: 1376987 Electro-chemical analysis PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 27 April 1972 [30 April 1971] 19557/72 Heading G1N To measure the quantity of oxidizable material in a sample, it is mixed with an inert carrier gas containing a set level of oxygen, oxidized in the presence of a catalyst and the oxygen used is measured by bringing the oxygen in the "exhaust" gas up to the original set level. As described a solid electrolyte, detector/pump cell (disclosed in Specification 1229610) is used to dose the carrier gas initially, and a second cell to measure and generate the amount of oxygen required to return to the set level. Where the sample is sewage effluent, a CaSO 4  water absorber may be used after catalytic oxidation. Other applications may be the analysis of chromatograph effluents and I. C. engine exhaust gases.
Patent GB-816091-A (GB)
Title: 17ª‡-alkyl-17ª‰-hydroxyestran-3-ones and their preparation
IPC: C07J75/00
Filed: 1957-06-21
Abstract: The invention comprises 17a  - alkyl - 17b  - hydroyestran-3-ones, in which the alkyl group contains less than 9 carbon atoms, and the preparation thereof by hydrogenating the corresponding 17a -alkyl-19-nor-testosterones, e.g. in the presence of palladium on charcoal as catalyst.  In the examples 17a -methyl-17b -hydroxy-5a -estran-3-one and the corresponding 17a -propyl, 17a -butyl, and 17a -octyl compounds, and 17a -isopropyl-17b -hydroxy-5a  (and 5b )-estran-3-one are prepared by the hydrogenation process in the presence of palladium on charcoal, and 17a -isopropyl-17b -hydroxy-5a -estran-3-one is prepared by treating 17a -isopropyl-19-nortestosterone with liquid ammonia and lithium to form 17a -isopropylestrane-3b ,17b -diol and oxidizing this compound with chromium trioxide in the presence of pyridine.  Specification 789,605 is referred to.
Patent GB-1422739-A (GB)
Title: Method of improving the surface protection of porous surfaces of inorganic oxidic materials
IPC: C04B41/64
Filed: 1973-04-25
Abstract: 1422739 Treating inorganic oxidic materials DYNAMIT NOBEL AG 25 April 1973 [26 April 1972] 19743/73 Addition to 1350788 Heading DIP A method of improving the surface protection of a porous surface of an inorganic oxidic material e.g. concrete, comprises treating the surface with a solution of an alkyltrialkoxysilane in water or an alcohol and treating the surface with a "basically acting substance" (i.e. a substance which, when dissolved or suspended in water, forms a solution or suspension having a pH greater than 7) before or during the treatment with the alkyltrialkoxysilane. Preferably the surface is subjected to a hydro-mechanical treatment with pressurised water or superheated steam as described in Specification 1369070 before being treated with the basically acting substance. The basically acting substance may be lime, lime marl, alumina, cement, or an alkali or alkaline earth metal aluminate or carbonate. It may be used in the form of a solution or suspension and is preferably dissolved or suspended in a solution of the silane in an amount of 0.1 to 10% by weight.
Patent GB-721627-A (GB)
Title: Improvements in or relating to carburetters for internal combustion engines
IPC: F02M7/17
Filed: 1952-08-06
Abstract: 721.627. Spray carburetters. CHARLES. H. N., and MANLEY. G. E. Oct. 14. 1953 [Aug. 6, 1952], No. 19760/52. Class 7 (3). A suction operated cylindrical throttle valve g, Fig. 1, actuated by a piston f has combined therewith a manually operable valve k controlling the communication between the intake pipe and the cylinder e containing the piston f. The valve g is spring-loaded and actuated by intake pipe suction transmitted through an opening j controlled by the spring- loaded valve k which is actuated by a cable p and has a stem m sliding in a guide n. Lifting of the valve k permits the suction to act on the piston f whereby the throttle valve g is raised until the opening j is throttled sufficiently to reduce the suction acting on the piston f to the equilibrium value which balances the force of the spring q. To close the throttle valve ,the valve k is released, whereby the opening j is closed to cut off the suction and the valve g is moved downwards by the combined forces of the loading springs q and r of the piston f and valve k, the lowest position of the valve g being determined by a spring-loaded adjustable stop i. The fuel is supplied by a main nozzle 11 consisting of a ring member 12 with several spray orifices 13, and a pilot nozzle 17 fed through a passage 19 from an aerating chamber 15 for the nozzle 11, additiona aerating air being supplied to the nozzle 17 through an adjustable orifice. The supply pipe 6, Fig. 5, from the float chamber 5 to the fuel nozzles contains an adjustable needle valve 9. In a modification, Fig. 2, the valve member k actuates a second valve t which controls vents v connecting the suction space of the piston f to atmosphere. When the valve k is lifted, the valve t is raised to close the vents v and permit the intake pipe suction to lift the valve g, equilibrium being re-established when the vents v are partially reopened. An adjustable stop h limits the lowest position of the valve k, and the valve g moves to its fully closed position when the engine stops, a groove x enabling the suction to .move the valve from this position when the engine is started. The Provisional Specification states that the fuel metering needle 9, Fig. 5, is adjusted by a knurled knob co-operating with a spring-loaded detent device serving as a locking device and as a device indicating the amount of rotation of the knob.
Patent GB-1514232-A (GB)
Title: Systems for controlling the fuel/air mixture fed to internal combustion engines
IPC: F02D41/14
Filed: 1975-05-12
Abstract: 1514232 Automatic control of fuel/air mixture in IC engines ROBERT BOSCH GmbH 12 May 1975 [4 Sept 1974] 19802/75 Headings G3N and G3R A control system for the fuel supply of an I.C. engine includes an exhaust gas oxygen sensor which supplies a comparator whose output is integrated and passes to a controller of the fuel supply and a monostable circuit responsive to a step output signal from the comparator to hold the input to the integrator at a fixed level for a predetermined time. The predetermined time is made to vary with the induced air-flow quantity and/or engine speed. In one embodiment, Fig. 1 (not shown) the monostable circuit is made responsive to a positive step change in the output of the exhaust sensor  comparator to hold the integrator input at a negative potential so that an average running air number # < 1 is obtained. In the alternative embodiment, Fig. 2 (not shown), the monostable responds to a negative going step to hold the integrator at a high potential to give an average running air number # > 1. The engine thus can be operated continuously with a non-stochiometric fuel air supply which may be needed to provide effective exhaust gas treatment.
Patent GB-1502490-A (GB)
Title: Coil windings and a method of making the same
IPC: H01F17/00
Filed: 1975-05-12
Abstract: 1502490 Making coils DAINI SEIKOSHA KK 12 May 1975 [14 May 1974] 19881/75 Heading B3A [Also in Division H1] A coil winding comprises a magnetic core 1 with an insulating PTFE or Teflon (R.T.M.) film 2 formed by sputtering and a conductive gold or aluminium coating 3 with a helical slot cut from it to leave a coil, further insulating films 7 and conductive layers 8 with helical slots 9 being applied to form a multi-layer coil. The slots can be cut by a photo-etching technique or by a laser beam. Reference has been directed by the Comptroller to Specification 1,413,735.
Patent GB-531009-A (GB)
Title: Improvements in two-stroke cycle internal combustion engines
IPC: F02B75/28
Filed: 1939-07-08
Abstract: 531,009. Two-stroke cycle engines. MOLLER, E., PURDAY, H. F. P., and REBBECK, F. E. July 8, 1939, No. 19930. [Class 7 (ii)] Axially aligned cylinders on opposite sides of a central crank-shaft A each contain opposed pistons. The adjacent pistons D are connected by rods C to a common crank-pin B. Crossheads N to which the remote pistons F are attached, are connected to each other by rods and to a central cross-piece or frame H connected to or enclosing eccentrics K on the shaft. In a modification the pistons F may be connected by links and rocking-levers to a crankshaft geared to the shaft A.
Patent GB-1156460-A (GB)
Title: Polyester Moulding and Coating Materials which can be Hardened by UV-Irradiation
Inventor: FUHR KARL
IPC: C08F283/01
Filed: 1968-04-26
Abstract: 1,156,460. Coated substrates. FARBENFABRIKEN BAYER A.G. 26 April, 1968 [6 May. 1967; 9 March, 1968]. No. 19962/68. Heading B2K. [Also in Division C3] Substrates are coated with a moulding and coating material which can be hardened by ultra-violet irradiation 'and which comprises a mixture of an unsaturated polyester and copolymerisable monomeric compound stablised by means of a content of a stabiliser, and which contains a benzoin ethers of a secondary alcohol as a photo-sensitizer. In the examples glass plates, glass rods and wood are coated.
Patent GB-676586-A (GB)
Title: An improved process for the manufacture of cast refractories containing zirconia
IPC: C04B35/657
Filed: 1950-08-10
Abstract: 676,586. Refractory composition. ELECTRO REFRACTAIRE. Aug. 10, 1950 [Aug. 11, 1949; July 24, 1950], No. 19963/50. Class 22 Cast refractories containing predetermined proportions of zirconia and silica together with one or more other oxides e.g. alumina are prepared from materials containing such constituents but wherein the amount of silica in the product would be too great by mixing the materials in such proportion to give the desired amount of zirconia and reducing the excess silica into silicon during fusion whereat the silicon is votatilized off. The reducing agent may be aluminium and/or carbon. The zirconia and silica may be introduced into the mixture together e.g. by using zircon or a mixture of zircon and zirkite. Oxides of iron and titanium may also be present.
Patent GB-147913-A (GB)
Title: Improvements in or relating to racks
IPC: A43D117/00
Filed: 1920-07-09
Abstract: 147,913. British United Shoe Machinery Co., (Assignees oE Glidden, H. L.). Dec. 15, 1916, [Convention date]. Hand - propelled vehicles for goods; bodies.-A boot-transporting rack consists of a self-supporting metal frame with a base and corner verticals enclosing a wooden shelf structure or filler which is nested in the frame. The frame is mounted on castors and has buffers 18 on side angle-irons 10, 12 carrying vertical angle-irons 20 and strengthened by diagonals and cross-braces. The upper ends of the bars 20 are joined by tubular members 26 and by upper cross angle-irons 28, 30 between which extends a longitudinal angle-iron 32. The filler is supported on angle brackets 42, and its wooden verticals 44 do not fill the angles of the uprights 20, the bolts of the cross-pieces passing loosely through them. The upper shelf is of ordinary construction, but the lower one has one end member made in two parts 52, 54, Fig. 2, the part 54 being slidable vertically in a rabbet in the part 54 when a spring latch 58 is held out of a bushing 60. The holes 62 to receive the dowels are formed half in each part so that the raising of the part 54 allows of the removal of a broken dowel, and its replacement. The raised end dowels 63 may be fixed in the part 54, or the edge may be shaped to contain their holes. A greater raising of the parts 54 would then release the end dowels.
Patent GB-531694-A (GB)
Title: Improvements in or relating to ion-exchange reactions
IPC: B01J49/00
Filed: 1939-07-08
Abstract: 531,694. Metallic salts: alkalies. PERMUTIT CO., Ltd. July 8, 1939, No. 19983. Convention date, Aug. 9, 1938. [Classes 1 (ii) and 1 (iii)] [Also in Group I] Ion-exchange materal is regenerated with a solution containing excess of a volatile rengenerating agent and unused regenerating agent is recovered from the used solution by volatilization. Hydrochloric acid, acetic acid, carbonic acid, ammonium hydroxides, ammonium carbonate and other volatile ammonium salts are mentioned as suitable regenerating agents. The used regenerating solution may, after removal of the excess generating agent, yield a concentrated solution of a metal salt formed in the regeneration. Thus if a waste solution containing copper sulphate or chloride is passed through a base-exchange material, which is subsequently regenerated with a solution of hydrochloric acid, a concentrated solution of copper chloride is left when the excess hydrochloric aid is removed by distillation from the used regenerating solution. Similarly a solution of sodium carbonate or bicarbonate can be obtained by passing a solution of sodium chloride through a base-exchange agent, regenerating with a solution of ammonium carbonate or carbonic acid, and boiling off the excess regenerating agent from the used regenerating solution.
Patent GB-1011871-A (GB)
Title: Microphone
IPC: H04R1/38
Filed: 1962-05-24
Abstract: 1,011,871. Microphones. SHINE BROTHERS Inc. May 24, 1962 [May 25, 1961], No. 20010/62. Heading H4J. In a moving coil microphone an acoustic resistance 30 (Fig. 1) defines a communication path between a chamber 31 and the diaphragm 21 and a second acoustic resistance 32 defines a communication path between the chamber 31 and a chamber 44, whereby the chamber 44 is in communication with the diaphragm 21 through the chamber 31 and the resistances 30, 32. As described, the chamber 31 is one of a number of apertures in a yoke 19 all of which are covered by the acoustic resistance 32. The resistance 32 is a felt or cloth washer, the compression on which is controlled by a nut 34. A cardioid response is obtained by appropriate phase shift. The voice coil is provided in an air gap 16 provided between an inner pole piece 14 and an outer pole piece 15. A magnet 13 is sandwiched between the pole piece 14 and a yoke 19. The pole piece 15 is carried on a ring 18 mounted on the yoke 19 and the magnetic circuit is closed except for the air gap 16. The voice coil consists of turns of fine wire cemented together to form a tube and then cemented to the diaphragm 21. The diaphragm 21 is carried on a resistance ring 22 secured on the outer pole piece 15. The spacing between the pole pieces 14, 15 is maintained by a brass bushing 17. Between the front of the diaphragm 21 and a front perforated screen 12 is an apertured resonator plate 23. Sounds reach the diaphragm 21 through the perforated screen 12 and plate 23. A second acoustic path is provided by an avenue progressing through a protective screen 39, through recesses 40 in the outer surface of pole piece 15, and through circularly arranged apertures 41 in the resistance ring 22 to the rear of the diaphragm 21. Sound waves from the rear of the diaphragm 21 progress through the air gap 16, through apertures 29 in the brass backing 17 to the acoustic resistance 30, of felt. A cloth screen 28 is also provided. The acoustic path is continued to chamber 44 which is in acoustic communication with a chamber 45 through apertures 46 in a shock mount 26. The chamber 45 houses a transformer 3. Connections to a cable jack 4 are provided through a sealed grommet 5. Specification 529,233 is referred to.
Patent GB-1111615-A (GB)
Title: Rotary mechanical seals
Inventor: WILKINSON SAMUEL CLIFFORD WALT
IPC: F16J15/34
Filed: 1964-05-14
Abstract: 1,111,615. Mechanical seals. CRANE PACKING Ltd. 13 May, 1965 [14 May, 1964], No. 20030/64. Heading F2B. A rotary shaft 4, e.g. a pump shaft, is sealed where it extends through a housing 1 by a mechanical seal comprising a non-rotatable soft packing ring 9 in sealing contact with the housing and urged, as by springs 13, into facial rubbing sealing contact with a hard material ring 5 rotatable with and sealed to the shaft. The ring 9 is mounted in a metal ring 10 and engages the wall of a recess 3 in the housing. The ring 5 is secured to the shaft by screws 8 and sealed to the shaft by an 0-ring 6. Cooling fluid is supplied through a passage 14 in the housing. To facilitate assembly the seal parts are each formed in two or more arcuate segments.
Patent GB-596295-A (GB)
Title: Improvements in synthetic rubber-like materials
IPC: C08F236/04
Filed: 1944-10-17
Abstract: Rubber-like products are made by copolymerizing a di-, tri-, or tetra-nuclear chlorostyrene or a -alkyl styrene with a mixture of conjugated diolefines containing not less than 65 mol per cent of one of them, the nuclear chlorostyrene constituting 20 to 50 per cent of the total monomers.  Mixtures specified are butadiene-1,3 and isoprene, piperylene, or 2-methylpentadiene (a mixture of 2-methylpentadienes-1,3 and 2,4).  The process is carried out as described in Specification 596,296.  There may also be present n- and isobutylenes, amylenes, vinyl chloride, nuclear monochlorostyrenes, furane and furfural.  The product may be compounded with coal tar oil, zinc oxide, channel black, sulphur and mercaptobenzothiazole and vulcanized by heat. Specifications 564,828 and 570,596 also are referred to.