baber/WOPTO huggingface dataset:
Patent GB-594668-A (GB)
Title: Improvements in or relating to the manufacture of screw-shafts and to mechanisms incorporating them
IPC: B21D11/14
Filed: 1944-11-29
Abstract: 594,668. Screw-and-nut gearing; variable-speed gearing. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Nov. 29, 1944, Nos. 23769 and 23770. Convention dates, Nov. 29, 1943. [Classes 80(ii) and 80(iii)] [Also in Groups XXII and XL] A screw-shaft 7 having a plurality of turns of non-uniform pitch is formed by twisting a bar of non-circular cross-section and non-uniform strength along its length. The bar which may be of metal or artificial resin may be of uniform or non-uniform cross-section. For a uniform cross-sectioned metal bar it may be heat treated to render it lengthwise of non-uniform resistance to twisting. Such treatment may consist of variable lengthwise electrical heating and rapid cooling by quenching. One end of the blank 93, Fig. 13, may be fixed to a vice 96 and the other end to means 97 for imparting a twist. Preferably the blank is surrounded by a transparent tube 98 to prevent buckling. The screw-shaft 7 as applied to a radio tuning device is rotatably supported in bearings 9, 11, Fig. 1, in a frame 1 and has a carrier 27 with a wire spring 29 the ends of which engage the threads of the screw-shaft. The carrier 27 is connected to the movable parts of the tuning devices 13, 15, such as, condensers or variable inductance devices.. An indicating pointer 33 is moved over a scale 31 by a cord 35 driven by a pulley 37 fixed on the knob-end of the shaft 7. For driving two or more devices, the shaft 41, Fig. 7, may have a plurality of threaded sections 41a, 41b. For a superheterodyne radio receiver the adjustable element 43b of a condenser 43 is driven from the section 41a and the corresponding element 45b of the condenser 45 is driven from the section 41b. The whole device is enclosed in a cylindrical tube 47. Condenser 43 forms part of the radio frequency circuit and condenser 45 part of the circuit for the local oscillator. As applied to a variable friction gear for driving a phonograph turntable 73, Fig. 8, so that the " track speed remains constant, a friction roller 77 engages a driving shaft 79 and the turntable 73 and is carried by a member 75 meshing with a variable pitch screw shaft 71. Gears in a box 81 interconnect the shafts 71, 79. Specification 302,580, [Class 83(ii)], is referred to.
Patent GB-506823-A (GB)
Title: New process to obtain a disinfecting product in compressed tablets or powder
IPC: A61K33/40
Filed: 1937-08-31
Abstract: 506,823. Antiseptics. HOFFELD, A. Aug: 31, 1937, No. 23783. Void. Convention date, April 8. [Class 81 (i)]. A disinfectant for application to the body consists of tartaric acid, aluminium lactate, potassium metabisulphite, sodium bicarbonate, borax, magnesium peroxide, hexamethylenetetramine, thymol and tribrom - naphthol. Additions of a carbohydrate binding agent such as starch or lactose, a perfume such as essence of lavender or eucalyptus, and an anµsthetic such as ethyl p-aminobenzoate, may be made. The preparation may be in powder form, or may be in the form of compressed tablets or spheres which may have a protective coating of benzoin or tolu balsam.
Patent GB-877664-A (GB)
Title: Improvements in the production of adiponitrile
Filed: 1960-07-07
Abstract: Adiponitrile is prepared from ammonia and adipic acid by introducing the adipic acid as a powder suspended in a stream of ammonia at a temperature below the melting point of the adipic acid into a chamber in which it is melted, or both melted and vaporized, by the introduction of further ammonia at a suitably elevated temperature, if necessary heating the resulting mixture to vaporize the adipic acid, and passing the resulting mixture of ammonia and adipic acid vapour in contact with a dehydration catalyst.  The total amount of ammonia employed is preferably 1.85-2.3 times the weight of the adipic acid, and the reaction temperature is preferably 350-370 DEG C.  An example uses boron phosphate (obtained by mixing equivalent quantities of boric and phosphoric acids) as catalyst.
Patent GB-337730-A (GB)
Title: Method of making talking motion pictures
IPC: G03B31/00
Filed: 1929-08-02
Abstract: 337,730. Cordish, N. R. Aug. 2, 1929. Drawings to Specification. Sound-reproducing apparatus associated with kinematographs. - A method of talking motionpicture production comprises the step of photographing an acted performance concurrently with a phonographic rendition of the sound part desired to be incident to the performance, so that the phonographic rendition serves to prompt the characters of the actual performance, the photographic and sound-reproducing apparatus being mechanically or electrically associated together for synchronous operation and both being disposed remote from the performers. The soundrecord used may be of a living or deceased character. Specification 22563/03 is referred to.
Patent GB-360491-A (GB)
Title: Improvements in or relating to the vulcanisation of natural rubber and rubber like masses
IPC: C08K5/00
Filed: 1930-08-09
Abstract: The vulcanization of natural rubber and rubberlike masses is accelerated by the addition to the mix of a condensation product of a m -mercaptoarylenethiazole with a halogen compound in which a chloromethyl or dichloromethyl group is combined with a doubly or triply linked carbon atom which is not in an aromatic nucleus or with a purely aliphatic halogen compound in which a chloromethyl or dichloromethyl group is combined with a doubly or triply linked carbon atom.  The carbon atom to which the chlorinated methyl group is joined may be doubly linked to oxygen or triply linked to nitrogen; examples of suitable compounds are chloroacetone, s- and as-dichloroacetone, monoand dichloroacetic esters, chloroacetamide, and chloroacetonitrile.  Stearic acid with or without an appropriate accelerator of a class other than that of the reaction product specified may also be present.  The reaction of 2-mercaptobenzothiazole (salt) with chloroacetone yields the acetonylether of 2-mercaptobenzothiazole, and the reaction of 1 mol. of dichloracetic acid ethyl ester with 2 mols. of mercaptobenzothiazole yields a product of the composition: <FORM:0360491/IV/1>ALSO:The vulcanization of natural rubber and rubber-like masses is accelerated by the addition to the mix of a condensation product of a m -mercaptoarylenethiazole with a halogen compound in which a chloromethyl or dichloromethyl group is combined with a doubly or triply linked carbon atom which is not in an aromatic nucleus or with a purely aliphatic halogen compound in which a chloromethyl or dichloromethyl group is combined with a doubly or triply linked carbon atom.  The carbon atom to which the chlorinated methyl group is joined may be doubly linked to oxygen or triply linked to nitrogen, examples of suitable compounds are chloro-acetone, s- and as-dichloroacetone, mono- and dichloro-acetic esters, chloro acetamide, and chloroaceto-nitrile. Stearic acid with or without an appropriate accelerator of a class other than that of the reaction product specified may also be present.  The reaction of 2-mercapto benzothiazole (salt) with chloroacetone yields the acetonylether of 2-mercaptobenzothiazole, and the reaction of 1 mol. of dichloracetic acid ethyl ester with 2 mols. of mercaptobenzothiazole yields a product of the composition <FORM:0360491/V/1>
Patent GB-332762-A (GB)
Title: Process for the manufacture and production of conversion products of rubber
IPC: C08C19/10
Filed: 1929-08-06
Abstract: 332,762. Johnson, J. Y., (I. G. Farben. industrie Akt.-Ges.). Aug. 6, 1929. Isomerizing. rubber.-Conversion products from rubber are prepared by treating rubber with phosphorus oxyhalides, or mixtures thereof with phosphorus halides or other agents decomposing rubber, if desired in the presence of an organic liquid inert to the said phosphorus compounds and capable of swelling or dissolving rubber. Example. 100 parts of rubber are swollen in 100 parts of benzine. 5 parts of phosphorus oxybromide with 2 parts phosphorus trichloride dissolved in 100 parts benzene are added, and the mixture kept at 18‹ C. for 24 hours. A reddish brown solution is obtained which is treated with gaseous ammonia till it is a light yellow colour. The solvent is evaporated in vacuo, and the residue washed with water at 55‹ C. till the product is free from electrolytes. Thermoplastic products and transparent films may be obtained.
Patent GB-223242-A (GB)
Title: Improvements in or relating to apparatus for indicating the temperature of internal combustion engines
IPC: G01K5/32
Filed: 1924-10-10
Abstract: 223,242. Schlaich, H. Oct. 10, 1924. Thermometers.-In a temperature indicator for an internal-combustion engine, the temperaturesensitive element is inserted in a conduit through which the cooling water circulates and is provided with clamping means adapted to engage both inside and outside the wall of the conduit. The said element is preferably located in the flexible connection between the upper part of the waterjacket and the top of the radiator. The temperature-sensitive element comprises a fluid-container 20 having a flared mouth 21 in which is secured by solder &c. the enlarged end of an externallythreaded stem 23 through which passes a tube 28 having beyond the stem, a protective covering 29 which can be clamped within a cap 26 screwed over the stem. A nut 25 and washer 27 are also mounted on the stem. When the element 20 has been inserted through the wall of the conduit 19, Fig. 4, the nut 25 is screwed down so as to engage the wall of the conduit between the washer 27 and the mouth 21 of the element 20. The tube 28 communicates with an indicator on the steering column &c. of the vehicle. Specification 145,474, [Class 7 (ii), Internal-combustion engines, Arrangement &c. of], is referred to.
Patent GB-308197-A (GB)
Title: Improvements in steam generators
IPC: F22B1/22
Filed: 1928-08-21
Abstract: 308,197. Akt.-Ges. Brown, Boveri, et Cie. March 19, 1928, [Convention date]. Heating by indirect contact of gases from explosion chambers.-A steam generator comprises a combustion chamber 1 into which a mixture of fuel and air is forced by a compressor 2 and exploded, and high and low pressure tubular heat exchangers 6, 7 comprising the evapcrator and the preheater respectively and communicating through valves 4, 5 with a gas turbine 8 driving the compressor, the valve 4 being opened just before the completion of the explosion to permit high pressure gases to pass through the heat exchanger 6, while the valve 5 is opened when the pressure of the explosion products has fallen to the compressor pressure. Water is circulated through a steam separator 10 and the heat exchanger 6 by a pump 11, the steam being withdrawn from the separator through a pipe 14 and make-up feed water supplied through the heat exchanger 7 and connection by a pump 12. The heat exchangers may be supplied from two adjacent combustion chambers, and high pressure gases may be passed through the heat exchanger 7 to the turbine. In a modification, the heat exchangers are combined in a single body provided with partitions.
Patent GB-259225-A (GB)
Title: Improvements in or relating to radio transmitters
IPC: H04B1/16
Filed: 1926-09-30
Abstract: 259,225. Telefunken Ges. f³r Drahtlose Telegraphie. Oct. 1, 1925, [Convention date]. Thermionic generators, amplifiers, and modulating systems.-In a valve transmitter for wireless signalling, of the kind employing a control oscillator A and a power amplifier B, the grid bias on the modulating valve e is maintained by rectification of the oscillatory currents from the control oscillator. The modulating-valve e is connected across the grid condenser f of the amplifier B, and the modulator grid circuit includes a resistance h shunted by a condenser. Oscillatory current supplied by a coil d, coupled to the control oscillator, is rectified by the two-electrode valve g and creates a direct current through the resistance h. A biassing voltage, proportional to the high-frequency voltage of the oscillator A, is thus maintained on the grid of the modulator e.
Patent GB-1014572-A (GB)
Title: Thin-film electrical circuit
IPC: H01L27/01
Filed: 1964-06-11
Abstract: 1,014,572. Circuit assemblies; capacitors. STANDARD TELEPHONES & CABLES Ltd. June 11, 1964 [June 14, 1963], No. 24243/64. Headings H1M and H1R. In a thin film circuit, e.g. a logic switching circuit the capacitances between the earth lead 2 and voltage supply conductors 3, 4, which cross lead 2, are used to decouple the power supplies. Conductors 3, 4, may be of tantalum which is oxidized to provide a dielectric layer; the earth lead 2 is an evaporated gold film. A negative lead 5 is of gold or other suitable metal, an oxidized tantalum layer being applied over lead 5 and in electrical contact with earth lead 2. The tantalum conductors 3, 4 may be augmented with gold except at the crossing- points, and/or conductors 3, 4 may be enlarged as shown at the crossing-points. Protective rectifiers may be provided in the voltage lines.
Patent GB-480006-A (GB)
Title: Improvements in and relating to heating installations
IPC: F23L11/02
Filed: 1937-09-06
Abstract: 480,006. Automatic control systems. RECOMATIC SOC. ANON. Sept. 6, 1937, No. 24273. Convention date, Sept. 8, 1936. [Class 38 (iv)] Temperature.-In a furnace draughtcontrol means for maintaining substantially constant temperature of flue gases in a chimney 1 comprises a damper 5 for admitting external air to reduce the draught and a motor driven ventilator 10 for increasing the draught and a pyrostat 6 in the flue gas stream for adjusting the damper when the temperature is too high and for closing motor circuit when the temperature is too low. The pyrostat is mechanically linked with the damper 5, and has a mercury switch 8 on its spindle connected in the circuit of the motor 9. A thermostat 18 responsive to the temperature of the water or space being heated may be connected in parallel with the switch 8 to give an overriding control. In a modification the fan of the ventilator 10 may be mounted directly in the chimney and driven from the motor through bevel gearing.
Patent GB-834025-A (GB)
Title: Improvements in or relating to apparatus for printing photographic negatives
Inventor: ELPHICK GEORGE STANLEY
IPC: G03B27/72
Filed: 1956-08-08
Abstract: 834,025. Photo-electric printing control. RANK CINTEL Ltd. Aug. 8, 1957 [Aug. 8, 1956], No. 24290/56. Class 40 (3). In photographic printing apparatus in which a scanning spot of light from a cathode-ray tube 2 is focused through a negative 4 on to printing paper 9 and in which part of the light is reflected by a half-silvered mirror 5 on to a photo-cell 7 which feeds back to the cathoderay tube 2 to control its brightness through an amplifier 13, an integrating circuit 14 and either directly by the dotted line 15, or through a non-linear amplifier 16 which is adjustable to suit different negative densities and is controlled by deflection generator circuits 11, 12 which determine the position of the light spot. The non-linear control by the circuits 11, 12 may be obtained by taking their sum, the sum of their square or the square root of this.
Patent GB-267415-A (GB)
Title: Improvements in tobacco pipe cleaners
IPC: A24F9/06
Filed: 1926-10-02
Abstract: 267,415. Peterson, J. Oct. 2, 1926. Cleaners for tobacco pipes.-A pipe cleaner, comprising a long twisted wire body carrying fibres forming a brush, is coiled in a flat coil A or B, of circular, oval, or polygonal form, and retained in that form by the bendable character of the cleaner. A number of such cleaners may be packed as shown in Fig. 5.
Patent GB-741553-A (GB)
Title: Fluid for gravity separation and a process of separation of ores
IPC: B03B5/44
Filed: 1952-09-30
Abstract: A sink and float medium is prepared from water and finely divided solid magnetic constituents in the form of hard, round particles having a smooth surface produced by spraying from a melt. Fenosilicon is preferably used.
Patent GB-424325-A (GB)
Title: Apparatus for lifting a liquid with the aid of gas under pressure
IPC: F04F1/06
Filed: 1934-08-24
Abstract: 424,325. Raising liquids by gas pressure. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ, 30, Carel van Bylandtlaan, The Hague. Aug. 24, 1934, No. 24489. Convention date, Sept. 16, 1933. [Class 102 (ii)] In apparatus for raising liquids from wells &c., of the type in which the liquid is discharged from a chamber 4 through a pipe 5 by compressed gas admitted by a pipe 3, the timing of the control valve 2 is effected by the fluctuations in pressure in a reservoir 18. which is alternately connected, through leaks, to sources of high and low pressure. The valve 6, admitting compressed gas from a pipe 1 to the pipe 3, is mounted on the spindle of a diaphragm 8, the upper surface of which is exposed to the pressure in the reservoir 18 through a pipe 19, while the lower surface is open to atmosphere through a passage 20. A valve 7 on the diaphragm spindle controls the communication of the pipe 3 with the exhaust 20. The reservoir 18 is connected to the space below the valve 7 by pipes 10, 11, 12 provided with check valves 14, 16 and needle valves 13, 15. In the position shown with the valve 6 open, pressure accumulates in the reservoir 18 through the valves 13, 14 until the diaphragm 8 is depressed, thus closing the valve 6 and opening the valve 7. The pressure in the reservoir 18 then leaks away through the valves 15, 16 until the pressure beneath the valve G overcomes the pressure on the diaphragm 8. Alternatively, the operation of the valve 2 may be effected through a relay.
Patent GB-713551-A (GB)
Title: Improvements relating to containers with fall-down handles
IPC: B65D23/10
Filed: 1951-10-19
Abstract: 713,551. Portable containers; stoppers. READS, Ltd., and GILES, A. J. Oct. 17, 1952 [Oct., 19, 1951], No. 24499/51: Classes 66 and 125 (3) A container comprising a bucket portion 10 with a bail handle 14 to which a removable conical upper portion 11 is attached in liquid-tight manner is provided with a cover 15 for the outlet neck 12 which is capable of being held in place by the handle and at the same time holding the handle rigidly The neck 12 may be provided with the normal closure 13 and the upper portion 11 below it formed with a strengthening rib 17. The cover 15 which may have a belled mouth 16 rests against rib 17 and is formed with a wedgeshaped base 18 at the apex of which there is a groove 19. The parts are so dimensioned that when the cover is in position the flat portion 20 at the top of the wire bail handle may be sprung over one of the shoulders 21 into the groove to retain it. A small auxiliary grip handle comprising a pivoted wire portion 22 and a wooden roller 23 is fitted to facilitate carrying of the container with the cover held in position by the bail 14.
Patent GB-1435280-A (GB)
Title: Bridge top stop in sliding clasp fasteners
IPC: A44B19/36
Filed: 1974-06-04
Abstract: 1435280 Sliding clasp fasteners YOSHIDA KOGYO KK 4 June 1974 [25 June 1973] 24654/74 Heading E2S A sliding clasp fastener F, comprising a pair of stringer tapes T 1 , T 2  a row of interlocking fastener elements E secured to and along one longitudinal edge of each of said stringer tapes, a slider, not shown, movable along said longitudinal edge to couple and uncouple the rows of fastener elements, and a bridge top stop 10 positioned at the upper end of the fastener and adapted to prevent the slider from running off said upper end, the bridge top stop embracingly overlying a first length of fastener elements Ea that remain coupled at said upper end and a second length of fastener elements Eb that continue from the first length but are uncoupled, and the bridge top stop being bonded integrally with said first and second lengths of fastener elements to the stringer tapes. As shown, the bridge top stop comprises a body portion 11 and bifurcated portions 12, 13 which embrace respectively the first and second lengths of engaged, and disengaged, fastener elements Ea, Eb. The lower end of the stop is recessed at 14 and has its sides shaped at 12a, 13a to provide an anchorage for the slider, the stop having flanges 15, 16 which are integrally bonded to the tapes. The stop and the elements E are preferably formed of thermoplastics material so that they can be integrally bonded adhesively, or fused, together by heat and pressure. A stop (10), Figs. 3, 4 not shown, is attached to the fastener (F) by injection moulding, and a strip of thermoplastic film (17), Fig. 5 not shown, can be attached to the upper end of each stringer (T 1 , T 2 ). The stop 10 and the elements E can be made of metal.
Patent GB-350324-A (GB)
Title: Improvements in devices for feeding tobacco to cigarettemaking machines
IPC: A24C5/39
Filed: 1930-08-20
Abstract: 350,324. Cigarette-making machines. LORENTZ, V., 12, N³rnberger Strasse, Dresden, Germany. Aug. 20, 1930, No. 24904. [Class 130.] The spreader 2 of the cigarette-making machine 1 receives tobacco from a chamber 5 into which it is drawn from a table 3 by a fan 7. A sieve 13 crosses the chamber, and the tobacco falls through a flap-valve 15 which opens when suction ceases. A throttle valve 8 may be caused to close the pipe 6 through the medium of cord 11 and lever 12, or the control may be electrical. The valve 15 is equal in width to the spreader beneath. Several such devices may be actuated by a single fan. In a modification, Fig. 5, suction through the chamber is continuous. The tobacco falls on an upper flap 15a kept closed by the suction. On turning the valve 22 the suction acts on both sides of the flap 15a which therefore falls, while the flap 19 is closed and receives the tobacco from the upper part of the chamber.
Patent GB-212951-A (GB)
Title: Improvements in and relating to aircraft carrying vessels
IPC: B63B35/50
Filed: 1922-09-15
Abstract: 212,951. Eyncourt, Sir E. H. T. d', Narbeth, J. H., and Hopkins, C. J. W. Sept. 15, 1922. Smoke, discharging.-In an aircraft carrying vessel, the boilers are arranged' abaft the machinery and the uptakes 13 - - 16 are led upwards to the underside of the flight deck and the discharge horizontally aft, shutters associated with fans being provided for discharging the smoke to either side of the ship as desired.
Patent GB-1383027-A (GB)
Title: Timepiece movement assembly
IPC: G04B15/12
Filed: 1972-05-26
Abstract: 1383027 Watches DAINI SEIKOSHA K K 26 May 1972 [27 May 1971] 24985/72 Heading G3T A watch movement comprises bridges 10, 11 which are spaced from each other and from frame plates 12, 13 by a spacer 14 to which the plates 12, 13 are held by at least one screw 28. As shown the bridges 10, 11 are held frictionally by the spacer and separated by a flange 22. The bridge 10 and plate 13 have bearing apertures 30, 31 for shafts 32-35 of a third wheel 36, fourth wheel 37, escape wheel 40 and pallet lever 41 respectively, and also support a mainspring barrel 63 which is retained by a clip 65 and can be withdrawn laterally without other dismantling. The lever 41 co-operates with a balance 42 and its oscillations are limited by the sides of an aperture 50 in the plate 13. A centre wheel and arbor 54 are mounted in the bridge 11 and plate 13, the bridge 10 having an aperture 60 to permit a centre seconds pinion and staff to be inserted. The plate 13 is also spaced from the bridge 10 by a bearing block (74), Figs. 4, 5 (not shown) which supports a winding/setting stem as in Specification 1367416.