baber/WOPTO huggingface dataset:
Patent GB-646468-A (GB)
Title: Improvements in and relating to securing devices for doors and the like
IPC: E05C3/04
Filed: 1948-01-15
Abstract: 646,468. Latches. MILLY, L. C. E. Jan. 15, 1948, Nos. 1278 and 1279. Convention dates, March 24, 1947, and July 9, 1947. [Class 44] The operating handle of a door latch on the contact side is formed with a catch part for engagement with a keeper plate, the handle being pivoted about a point removed from the apparent axis of the handle and spring loaded into the fastening position. In the form of Figs. 1 and 3, the handles 1, 2 are mounted by depending flanges on studs 11. 12 secured to washers 9, 10. A screwed spindle 17 connecting the handles is formed with opposite hand threads and is of square section so that it may be tightened by a tool inserted in the gaps 7 or 8 behind the handles. The washers 9,10 are formed with slots 15 and circular apertures 16. The spindle 17 is turned in the aperture 16 and then aligned to operate in normal use in the slot 15. The spindle 17 moves in a bore 20 in the door which may house a spring urging the nose 18 of the handle into locking engagement with the keeper plate 19. In another form, Fig. 5, the handles are pivoted on a cylindrical member of a barrel lock which is connected to a gear wheel 40 meshing with a second wheel 41 having a non-round hole 45 engaging the spindle 17. The spindle in this case is screwed up by rotation of the lock by the key and a screw is then inserted in one of the slots 42, 43 to limit the rotation of the spindle to a quarter turn. In the position shown the spindle is turned in the aperture 16 across the slot 15 and the handles cannot be moved. In the other position of the spindle it is free to enter the slot and therefore the latch may be opened. In the form of Fig. 12 the spindle 17 is cast into one handle 1 and connected by a pin 46 to the other. The handles may be pivoted on studs as before or as shown on a barrel lock 31 connected by gears to a rotatable sleeve 48 on the spindle adapted to engage a part of the washer 9.
Patent GB-928114-A (GB)
Title: The production of polymer solutions
Inventor: REEDER FRANK
IPC: C08F214/08
Filed: 1961-01-12
Abstract: Solutions of copolymers of acrylonitrile and vinylidene chloride are produced by dissolving in dimethylsulphoxide, acrylonitrile, vinylidene chloride and, if desired, one or more other copolymerizable monomers, in such quantities that the resulting copolymer contains 40 to 60% of acrylonitrile units by weight, the balance being largely vinylidene chloride, and polymerizing the monomer mixture obtained in the presence of an initiator and under such conditions of temperature and time that the copolymer produced has an inherent viscosity, measured in a solution of 0,5% concentration by weight, of at least 1,0 and preferably not greater than 1,8.  The preferred temperature range is 44 DEG  to 55 DEG C. and at these temperatures the polymerization time is 10 to 20 hours. The initiator may be of the free-radical-producing type, for example an azo-catalyst, or a redox initiator may be used, e.g. a peroxide with a reducing agent.  2-methyl-5-vinylpyridine is the only other comonomer mentioned which may be copolymerized with acrylonitrile and vinylidine chloride.  The examples illustrate the copolymerization of acrylonitrile and vinylidene chloride in dimethylsulphoxide or dimethylsulphoxide plus water, the initiator being azo-bis-isobutyronitrile.  The polymer solutions obtained can be used directly for conversion to fibres and films.
Patent GB-682789-A (GB)
Title: Improvements relating to stands for bowls for ornamental or domestic use
IPC: A47G7/08
Filed: 1950-01-19
Abstract: 682,789. Stands. PERRY, BEVAN & CO.,. Ltd., and BEVAN, A. Jan. 18, 1951 [Jan- 19, 1950], No. 1389/50. Class 52(iii) A stand for bowls comprises a number of resilient band members, one end of each band being connected in swivelling fashion to the body of the stand and the other end of each band having a spring snap, overhanging engagement with the rim of the bowl. As shown, parts of a wire core 4, of a tubular bead surrounding the upper end 3b of the stand 3, are exposed at places, by cutitng gaps 3c in the bead, and serve as connections for loops 5a of band members 5, the ends, 5b, of the bands having a snap engagement with the rim of a bowl A seated on the stand.
Patent GB-309241-A (GB)
Title: Improvements in electric discharge devices
IPC: H01J17/20
Filed: 1928-01-16
Abstract: 309,241. Crowne, A. A. J. Jan. 16, 1928. Vacuum tubes.- Radio valves are provided with a plate cathode of a radioactive substance, such as uranium or an alloy, and with a filling of helium, neon and air, preferably in the percentages 10, 5 and 85 respectively. Helical nickel grids B, G and cylindrical anodes A, C may be arranged inside and outside a cylindrical cathode K of uranium to utilize the radiations given off from both sides of the cathode. The electrodes are steadied by a glass disc F and supports D. The cathode is cold in use or may be warmed by a separate heating resistance replacing the electrodes A, B. For use as a single low- or high-frequency amplifier or detector, the two grids, and also the two anodes, are connected together. The two sets of electrodes may be used as two valves, such as two low- or high frequency amplifiers or a high-frequency amplifier and a detector, or a detector and a lowfrequency amplifier, the inner electrodes being used as the first valve except in the last case. Specifications 195,691 and 207,514 are referred to.
Patent GB-116665-A (GB)
Title: Improved Means for Filtering and Mixing the Charge of Air and Gas or Vapour supplied to Internal-combustion Engines.
Inventor: BOURGOIN LOUIS
IPC: F02M1/00
Filed: 1918-01-24
Abstract: 116,665. Watson, F. Dec. 14. 1917. Tips. - Relates to shock - absorbers for crutches having two tubes, one within the other, and a core of resilient material adjustably secured within the outer tube. The outer tube B, which receives the cushioning - material C, is formed with longitudinally spaced holes H, F, and the core C with a diametral hole K to receive a securing-screw. When the core is worn, the screw may be transferred to the lower hole F for adjustment of the core. The inner tube A is in screw-threaded engagement with the outer tube B and accommodates the lower end of the crutch. The gap between the adjusted core and the end of the stick may be filled in by the insertion of a wooden plug.
Patent GB-695433-A (GB)
Title: Improvements relating to vats formed of granite
IPC: E04H7/20
Filed: 1952-01-18
Abstract: 695,433. Granite vats. SJOSTROM, A. Jan. 18, 1952, No. 1458/52. Class 69(i) A vat of granite for use in etching or cleaning metal objects, comprises a plurality of intermediate sections 3 of substantially U-shaped crosssection and a pair of end sections 1 which may be hollowed out, the whole being held together by horizontal clamping members and the points between the sections being sealed. The clamping members comprise bolts 4 within the sections or between transverse beams 7, and the joints are sealed by cords 9 of rubber or similar resiliently compressible material.
Patent GB-450317-A (GB)
Title: Improvements in the preparation of compositions for use as sizes, or for the production of sizes
IPC: D06M13/224
Filed: 1935-01-17
Abstract: Stable aqueous emulsions of drying oils for use as sizes, or for the production of sizes, include alkali hexametaphosphate, which transforms into soluble complex products the insoluble compounds formed between a soap used as emulsifying agent and the calcium or magnesium salts in the water.  The invention may be applied to the preparation of sizing baths ready for use, or to the preparation of concentrated emulsions, such as these described in Specification 409,469, which are to be diluted with water before use as sizes.  The size may also include wax, resin and gelatine.  Specification 258,266, [Class 121], also is referred to.ALSO:Stable aqueous emulsions of drying oils for use as sizes, or for the production of sizes, include alkali hexametaphosphate, which transforms into soluble complex products the insoluble compounds formed between a soap used as emulsifying agent and the calcium or magnesium salts in the water.  The invention may be applied to the preparation of sizing baths, ready for use, or to the preparation of concentrated emulsions, such as those described in Specification 409,469, which are to be diluted with water before use as sizes.  The size may also include wax, resin and gelatine.  Specification 258,266, [Class 121], also is referred to.
Patent GB-218615-A (GB)
Title: Improvements relating to the manufacture of normal butyl alcohol
IPC: C12P7/28
Filed: 1924-01-22
Abstract: 218,615. Soc. Ricard, Allenet, et Cie. July 7, 1923, [Convention date]. Drawings to Specification. Fusel oils.-In making butyl alcohol by fermenting carbohydrates with butyric ferments, lactates are added to the wort, which is stated to increase the yield of butyl alcohol and diminish that of acetone. The lactates may be added in any form, but in the method described a wort derived from beetroot is fermented with a lactic ferment which will grow in an acid medium, neutralized and added to wort in which butyric fermentation has commenced.
Patent GB-670604-A (GB)
Title: Improvements in or relating to thioethers and methods for obtaining the same
IPC: C07C323/25
Filed: 1947-07-07
Abstract: Thioethers of the formula <FORM:0670604/IV (b)/1> where Ar and Ar1 are each substituted or unsubstituted aryl, the substituents in the aryl groups being alkyl, alkoxy or halogen, n is an integer from 2 to 6 inclusive, R1 and R2 are each H, alkyl or cycloalkyl of not more than 6 carbon atoms or taken together as morpholine, piperidine, pyrolidine or substituted piperidine or pyrrolidine, are obtained by reacting a compound of the formula <FORM:0670604/IV (b)/2> with a compound of the formula <FORM:0670604/IV (b)/3> The thioether may be subsequently reacted with hydrohalic acid and isolated as its hydrohalide salt and the quaternary ammonium compounds can be obtained by reacting with an alkyl or aralkyl halide or a dialkyl sulphate.  An example is given of the preparation of morpholinoethyl benzhydryl thioether hydrochloride.  Samples have been furnished under Sect. 2(5) of b -dimethylaminoethyl, b -piperidinoethyl and b -pyrrolidinoethyl benzhydryl thioethers.
Patent GB-186553-A (GB)
Title: Improvements in stoves, water heaters and the like
IPC: F24H1/18
Filed: 1922-01-23
Abstract: 186,553. Tapp, P. J. R., and Lee, R. S. Jan. 23, 1922. Internally-fired boilers. - A water-heating stove comprises a tubular double-walled casing a the lower part forming a firebox for the reception of combustible refuse, while the upper has within and communicating with it a water element h of star or cruciform section.
Patent GB-1337624-A (GB)
Title: Method of determining a quantity of movement of the escapement  of a watch of clock mechanism
IPC: G04D7/00
Filed: 1971-01-15
Abstract: 1337624 Optical apparatus clocks and watches GREINER ELECTRONIC AG 15 Jan 1971 [15 May 1970] 2172/71 Headings G2J and G3T The extent of movement of an escapement lever 5, 6 is determined by directing a beam of light 12 through a hole 9 in an escapement plate 1, so that it is interrupted by the lever during its movement, and monitoring the modulated beam reflected by a lever bridge 8.
Patent GB-469267-A (GB)
Title: Improvements in or relating to turbines and rotary steam boilers
IPC: F22B27/12
Filed: 1936-01-23
Abstract: 469,267. Steam turbines. STARZICZNY, J. Jan. 23,1936,No. 2231/35. [Class 110 (iii)] [Also in Group XIII] In rotary boilers having U-shaped generating tubes with an atomizing device at the tube inlets to ensure evaporation commencing in the first leg of the tube, a turbine wheel 11 is mounted within a rotary body 5 and carries a number of reversing blades 15 between which vapour from the turbine vanes 12 passes to impart an opposite rotation of less speed to the rotary body. The turbine shaft 19 is journalled in bearings 16 ... 18 and the boiler in bearings 6 ... 8 in a main casing 1, the boiler shaft 20 being initially driven by means of a pulley 21 or gear-wheel from a starting motor. Feedwater supplied by a pipe 23 to a pump built into the body 5 passes thence through radial channels to a distributing chamber 13 into which legs 27 of a circular row of radial U-tubes open, their longer outlet legs 28 opening into a steam-collecting chamber 14. Concentric guide rings 29 and backwardly curved deflector plates 30 with a perforated disc 31 support the tubes. Fuel gas and air supplied to a mixing chamber 2 pass through slits or holes 33 in a partition 34 to a combustion chamber 3 having ignition elements 32. Or liquid or solid fuel may be used and the partition omitted. Combustion products are drawn past the generating tubes by the deflector plates and discharged through an exhaust channel 37. Steam collecting in chamber 14 passes through nozzles 9 to the turbine vanes 12 and thence to the reversing blades 15 and exhaust chamber 4. Multi-stage turbines may be embodied in modifications. Specification 426,945 is referred to.
Patent GB-1505488-A (GB)
Title: Cementing semiconductor discs to carrier plates
IPC: H01L21/302
Filed: 1977-01-20
Abstract: 1505488 Preparing semi-conductors discs for polishing or lapping WACKER-CHEMITRONIC GES FUR ELEKTRONIK-GRUNDSTOFFE mbH 20 Jan 1977 [1 March 1976] 02317/77 Heading B3D A process for cementing a semi-conductor disc to a carrier plate which is subsequently fixed in a polishing or lapping machine comprises applying to the carrier plate a layer of cement solution consisting of a resin, a plasticizer and a solvent, heating the carrier plate and layer of cement to the cementing temperature until the solvent has substantially evaporated, placing the semi-conductor disc on the cement layer at the cementing temperature, applying pressure to the semi-conductor disc to secure it to the cement layer, and allowing the cement layer to cool so as to set. The resin is preferably a maleate resin, but a number of other examples are given, and has a melting range between 50 and 180 C., the upper limit being not more than 20 C. above the cementing temperature, and a melt viscosity between 1000 to 6000 P. The resin constitutes 60 to 95 parts by weight of the cement, the plasticizer, which is preferably of benzyl or α-naphthol and is substantially miscible with the resin at above 20 C. and a melting point from 25 C. below the cementing temperature, constitutes 5 to 40 parts by weight, and the solvent, which has a boiling point lower than the cementing temperature, from 75 to 250 parts by weight. The heating is effected in the range from 50 to 160 C. The disc is applied to the carrier plate by a suction manipulator having a convex face so that no air bubbles are trapped between the disc and carrier plate, and is pressed against the plate with a pressure of from 0À5 to 1À5 kgf./cm.<SP>2</SP> for from 0À5 to 5 minutes at the cementing temperature or no more than 30 C. lower. The heating is preferably applied for a further 1 to 5 minutes after the pressure treatment. The semi-conductor disc on the carrier plate may then be polished as described in Specification 1,418,088 to have a haze-free and a flat surface. The suction manipulator has a hollow head with a convex surface formed with a plurality of grooves have holes connecting the grooves to the interior of the head which is connected by a tubular handle to a source of vacuum. A hole in the handle may be closed by the thumb of the operator so that vacuum is applied to the grooves in the convex surface to hold the semiconductor disc.
Patent GB-209951-A (GB)
Title: Improved process and apparatus for utilizing the drip or condensation in high pressure steam pipes
IPC: F22D1/32
Filed: 1923-01-25
Abstract: 209,951. Clarke, C. W. E. Jan. 25, 1923. Heating by circulation of fluids.-The condensate in the steam lines of a high-pressure steam system is collected in a vessel under the same pressure as in the system and is then passed into a receiver under a lower pressure, the steam produced by the reduction of pressure being led off for use. Condensate collected in a vessel 2 is led through nozzles 10, 16 having restricted orifices to a low-pressure receiver 15 leading to an auxiliary exhaust main. Normally all the condensate is passed through the nozzle 10, the nozzle 16 being brought into operation by opening a valve 17 only when the water in the vessel rises above a certain level. An alarm operated by a float in a gauge 7 is sounded when this level is reached. The valve 17 may be automatically operated by a thermostat comprising an inclined expansion tube in communication with the top or bottom of the vessel. The steam may be used for heating the boiler feed.
Patent GB-1096512-A (GB)
Title: Improvements relating to an electric motor for a sealed refrigerating unit
IPC: H02K11/25
Filed: 1966-01-18
Abstract: 1,096,512. Control of A.C. motors. DANFOSS A.S. Jan. 18, 1966 [Jan. 20, 1965], No. 2339/66. Heading H2J. In a split-phase motor for a refrigerator the starting winding is designed to have initially the same temperature rise as the main winding, a resistance for phase-splitting being provided outside the casing. A resistor of high positive temperature co-efficient may be used, or a normal resistor with a starting relay. The main winding circuit or the supply circuit includes a switch responsive to the temperature of the main or both windings. The temperature of the windings may be indicated externally.
Patent GB-1396690-A (GB)
Title: Hydroxylation process
IPC: C07C37/60
Filed: 1974-01-18
Abstract: 1396690 Hydroxylation process MITSUBISHI GAS CHEMICAL CO Inc 18 Jan 1974 [31 Jan 1973] 02477/74 Heading C2C Hydroxylated aromatic compounds are prepared by reacting one or more aromatic compounds with H 2 O 2  in the presence of F 3 C.COOH and HF. The term " aromatic compounds " signifies simple aromatic compounds, their alkyl or halogen-substituted derivatives and monohydroxyaromatic compounds.
Patent GB-1007426-A (GB)
Title: An improved cylinder
Inventor: LEE GEORGE
IPC: D06C7/00
Filed: 1963-01-21
Abstract: 1,007,426. Drying rollers; rotary joints. LEESONA HOLT Ltd. Jan. 29, 1964 [Jan. 21, 1963], No. 2483/63. Headings F2G and F2U. To prevent overdrying of textile yarns during emergency stops of a steam-heated rotary drying cylinder having shells 11, 12 forming an annular space 13 to which steam is supplied through a control valve 17, rotary joint 16, hollow shaft 14 and radial arms 15, a relief valve 18 is connected to the control valve 17 in the main steam feed line 19 such that in the event of the cylinder being stopped during operation, e.g. if a yarn end breaks, the steam supply valve 17 shuts and opens the relief valve 18 to vent the annulus 13 to atmosphere and cool the cylinder. One-way antivacuum valves 20 are provided at each end of the annulus 13, and further assist in cooling. Condensate is removed from the annulus 13 by a scoop 21, fast with the inner shell 11, and discharged through an arm 22, a steam trap (not shown), the rotary joint 16, and a hose 30. The rotary joint 16 comprises opposed flanges 16a, 16b, spring-biased together, between which are clamped bearings and bushes 26a, 28, 29 and 32 which space, support and seal the concentric shafts 14, 23 respectively, an 0-ring 27 preventing leakage of condensate therefrom. The flange member 16a is formed with three bores 33, 34 and 35 respectively to receive a thermostat (not shown), the main steam feed line 19, and an anti-vacuum valve (not shown). In an alternative arrangement, the relief valve 18 is sensitive to a pressure drop in the hollow shaft 14 consequent on closing the supply valve 17 to open and vent the annulus, to atmosphere or to the large space within the shell 11, and additional condensate removal scoops may be provided.
Patent GB-285074-A (GB)
Title: Improvements in dynamo electric lighting systems
IPC: H02J7/22
Filed: 1928-01-26
Abstract: 285,074. Bosch Akt.-Ges., R. Feb. 11, 1927, [Convention date]. Regulation, automatic; systems of charging batteries.-In a variable speed system comprising a three-brush dynamo 1 and battery 7 and an automatic regulator 11 adapted to give an intermediate charging voltage the regulator is connected in circuit by means mechanically interconnected with the switch 8 controlling the battery load so that full charging voltage may be developed when the battery is not supplying lamps, though the regulator is operative when lamps are lit. An electromagnetic switch 16 cuts in the regulator 11 independently of the load switch 8 when the battery is fully charged, and is designed to remain closed thereafter until the system volts have fallen to a low limit.
Patent GB-660686-A (GB)
Title: Improvements relating to telephone circuit signalling apparatus
Inventor: LEBEDINSKY MYRON
IPC: H04Q1/446
Filed: 1949-01-28
Abstract: 660,686. Voice frequency signalling. SOC. ANON. DE TELECOMMUNICATIONS. Jan. 28, 1949 [Feb. 6, 1948; Sept. 28, 1948], Nos. 2494/49 and 2495/49. Class 40 (iv). [Also in Group XL (c)] In a voice frequency signalling arrangement a single valve acts as an amplifier of the speech currents and as part of the signal receiver circuit, voice immunity circuits being provided to prevent false operation of the receiver. In the embodiment of Fig. 1 (not shown), the anode circuit includes two circuits tuned to the signal frequency and a guard frequency respectively, the outputs of which are rectified and applied to a signalling relay and a disabling relay respectively. In Fig. 2 (not shown), the rectified outputs are applied in series in opposite sense to the signalling relay, no disabling relay being required. In the arrangement of Fig. 3 which is more sensitive, a portion of the signal output is rectified and applied as positive bias to the amplifier to bring about operation of relay 24 in the manner described in Specification 487,339. Speech currents if present are rectified and applied to back-bias the signal current rectifier so as to disable the signalling circuit. As shown in Fig. 4, the signal and guard frequency currents are fed via filters 28 and 32, respectively, to rectifiers and the rectified currents are applied to the windings of a polarized relay 29 which is normally biassed to close its upper contacts. With current flowing in its upper winding the lower contacts cannot be closed and so the relay operates only if the signal frequency appears alone. Fig. 5 illustrates an embodiment which selectively responds to 500 c.p.s. signals and 500/20 c.p.s. signals. Upon reception a 500 c.p.s. signal is amplified, appears in the secondary winding of transformer 105 tuned to that frequency, is rectified and smoothed and applied as negative bias to the valve. The resulting drop in current in the winding 111 of relay 112 causes it to operate and close the loop to terminals 115, 116. If the received signal is 500/20 c.p.s. the direct current component of the anode current fluctuates at 20 c.p.s., thus charging and discharging capacitor 117. The variable current which therefore flows in rectifier bridge 118 operates relay 119 which closes the loop to terminals 115, 122. Voice immunity is obtained by the action of circuit 106 (tuned to, say, 800 c.p.s.) which in the presence of speech produces a direct voltage across resistor 124 which biasses rectifier 107 to prevent the back-biassing of the valve in response to 500 c.p.s. currents.