baber/WOPTO huggingface dataset:
Patent GB-544310-A (GB)
Title: Improvements in or relating to the manufacture of polymeric materials
IPC: C08G69/04
Filed: 1940-10-05
Abstract: 544,310. Polyamide condensation products. DU PONT DE NEMOURS & CO., E. I. Oct. 5, 1940, No. 14907. Convention date, Oct. 5, 1939. [Class 2 (iii)] Polyamides particularly of the high molecular weight fibre forming type described in Specifications 461,236, 461,237 and U.S.A. Specifications 2,071,250, and 2,130,948 are obtained by polymerizing an N-formyl derivative of a polymerizable monoaminomonocarboxylic acid, or by polymerizing an N formyl or an N : N<SP>1</SP> diformyl derivative of a diamine and a dibasic carboxylic acid. The polymerization is carried out at temperatures of 200-300C., under increased or reduced pressure, and preferably in presence of an inert solvent or non-solvent e.g. white medicinal oil. There are specified : (1) N : N<SP>1</SP> formyl derivatives of diaminestetramethyl, pentamethyl, 3-methylhexametbylene, octamethylene, triglycol, N : N<SP>1</SP> dimethylhexamethylene-, xylylene-, 2 : 11 diaminododecane-, m-phenylene-, 2 : 4 toluene-, methylene-, ethylene-, and triethylenediamines ; (2) dicarboxylic acids-#-methyl-adipic, pimelic, malonic, glutaric, suberic, azelaic, p-phenylenediacetic, iso-phthalic, diglycollic, and thiodibutyric acids or their esters or anhydrides ; (3) formyl derivatives of monoaminomonocarboxylic acids-N-formyl-e-aminocaproic acid, N-formyl 10-amino capric acid OHC-NH-(CH 2 ) 6 -COOH, OHC-NH-(CH 2 ) 7 -COOH ; (4) solvents-phenol, m-cresol, o-hydroxydiphenyl ; (5) catalysts oxides, salts, metal halides, e.g. stannous chloride, zinc chloride ; magnesium sulphate, silica ; phosphoric, sulpburic, borophosphoric and p-toluenesulphonic acids ; (6) viscosity stabilizers-acetic acid, 2-ethylhexylamine, benzoic acid, or a small excess of the formyl derivative. In examples (1) a mixture of 8.60 parts of the N : N<SP>1</SP>-diformyl derivative of hexamethylenediamine (prepared by the heat treatment of hexamethylene-diammonium formate) and 7.30 parts adipic acid was heated in a nitrogen atmosphere for one hour at 255C. for one hour at 287C., and finally for an hour at the same temperature but under a pressure of 10 mm. absolute. A hard opaque solid was obtained having a m.p. 263C. and intrinsic viscosity 0.62 ; (2) 10 parts N-formyl-e-amonocaproic acid (prepared by refluxing e-aminocaproic acid with formic acid) was heated for 0.5 hours at 218C. for 0.5 hours at 255C., for 1 hour at 287C., and for 0.2 hours at 287C., and 10 mm. pressure.
Patent GB-754102-A (GB)
Title: Improvements in or relating to a method and apparatus for vapourising materials, forexample, metal in vacuum
Inventor: HOLLAND LESLIE ARTHUR
IPC: H01J37/305
Filed: 1951-06-22
Abstract: 754,102. Coating by vapour deposition. EDWARDS & CO. (LONDON), Ltd., W. Dec. 12, 1952 [June 22, 1951], No. 14910/51. Class 82(2). [Also in Group XI] In a method of vapourising a substance in a vacuum chamber by electronic bombardment (see Group XI), a metallic substance, in one embodiment, is contained within a crucible 26 mounted within a vacuum chamber 21, and the base of the crucible is water cooled by a coiled pipe. An electron gun 18 directs its beam 19 onto the surface of the metal, and a magnet assembly comprising two semi-circular soft iron plates spanned by a permanent magnet 39 bends the beam through 180 degrees. The vapourised metal is deposited on plastic sheet material 22 which passes continuously between drums 23, 24. Specifications 654,228 and 754,101 are referred to.
Patent GB-215212-A (GB)
Title: An improved machine for harvesting maize and the like
IPC: A01D45/02
Filed: 1923-06-07
Abstract: 215,212. Woodland, P. T., and Courtnall, W. S. June 7, 1923. Harvesting corn from uncut crops. - A machine for harvesting maize, Kaffir-corn, &c. comprises an endless chain, with projecting fingers working in conjunction with cutting means, mounted an an inclined U-shaped framework by which the cobs are forced by the fingers on to the cutting means whereby they are severed from the stalks. The cobs are then conveyed by belts to a receptacle. The frame 5 comprises a channel section bent to a U shape and inclined so as to cut across the normal plane of the cobs. In between the legs of the frame are traversed fingers 7, projecting sidewardly and upwardly from a chain 6 passing over sprockets driven from the ground wheels and guided by an angle 33 and distance piece 35. As the machine moves forwards guides 27 deflect the stalks to the fingers 7 which are curved and tapered at the top and travel in a direction opposite to that of the machine so that their motion relative to the ground is vertical. The fingers slide up the stalks and bend the cobs on to knives 10, 11 fixed to the frame. The severed cobs fall on to conveyers 15, 15<a>, which discharge into a receptacle 29<a> provided with a door. The fingers 7, in a modification, are tapered from one side only and a single conveyer is fitted. Knives 31 of ordinary construction may be provided for cutting the stalks.
Patent GB-1263805-A (GB)
Title: Fluid seals
IPC: F16J15/40
Filed: 1969-03-21
Abstract: 1,263,805. Shaft seals. RIGAKU DENKI CO. Ltd. 21 March, 1969 [25 March, 1968], No. 14982/69. Heading F2B. A shaft seal for a vacuum chamber 1 comprises first, second and third packing members 9, 8 and 7, the space between the first and second being connected to the vacuum chamber by a conduit 14 and the space between the second and third being filled with a low viscosity oil open to atmospheric pressure. The lips of the packing members are pressed by garter springs 10. An oil reservoir 11 supplies the oil to the space between the packing members 7 and 8 and a detachable oil sump 17 between the packing members 8 and 9 collects leakage.
Patent GB-457140-A (GB)
Title: Improvements in or relating to artificial horse hair
IPC: D06M15/693
Filed: 1935-05-23
Abstract: 457,140. Yarns and threads ; wadding. PASTOR, C. T., Krefeld-Traar, Germany. May 23, 1935, No. 15098. Convention date, May 23, 1934. [Classes 120 (iii) and 142 (iv)] Threads or bands of textile material are provided with a continuous and uniform envelope of resilient material such as rubber or synthetic resin by drawing them through a nozzle fed with the coating preparation in liquid form, the coating being subsequently vulcanized or hardened. To curl the coated threads they may be subsequently treated with solvents which cause the core to swell without attacking the envelope and then hardening or stabilizing the core in this condition. Alternatively the core may previously be impregnated with material which will produce the desired swelling after subsequent treatment. As an example a cellulose acetate thread is coated with rubber and caused to swell by treatment with methylene chloride and alcohol or with acetone and hardened by treatment with steam or hot air. The threads &c. may be wound into a tubular structure on removable rods and.the structure then filled with similar or other fibrous material for use as wadding in upholstery. Specification 436,674 is referred to.
Patent GB-1301077-A (GB)
Title: Method of recovering oil from an oil bearing bed
Inventor: CHEKALJUK EMANUIL BOGDANOVICH
IPC: E21B43/24
Filed: 1971-05-17
Abstract: 1301077 Wells &c GOSUDARSTVENNY NAUCHNO-ISSLEDOVATELSKY I PROEKTNY INSTITUT NEFTEDOBYVAJUSCHEI PROMYSHLENNOSTI 17 May 1971 15256/71 Heading E1F Oil is recovered from a formation by injecting water into the formation through an input well and removing oil and water from the formation through an output well, the water entering the formation at a temperature of 300‹C-360‹C and a pressure of 180-220 atmospheres.
Patent GB-973876-A (GB)
Title: Information display device
IPC: G09F11/06
Filed: 1962-04-19
Abstract: 973,876. Information display devices. SOLARI & C./UDINE S.p.A. April 19, 1962 [Sept. 14, 1961], No. 15304/62. Heading G5C. An information display device comprises a box which houses a line of information carrying members which may each be located at a desired but variable position longitudinally across the face of the box, gaps in between the members and between the members and box sides being screened by movable covers. The device may be used for example, for railway or aircraft departure indicators. The information display devices may be of the electrically operated rotatable flap type, Fig. 1f, Figs. 2a-c, as described in Specification 939,069 and may be located in a desired longitudinal position in a box Fig. 11 which comprises top, bottom and side walls 34-37 of ribbed formation as shown in Fig. 3. The back member 38, Fig. 6, is of channel formation and is sprung into position between the opposite ribs A1 of base 5 and the box is assembled by use of metal brackets and plates 10, 11 and screws 12. The front of the box is shaped to provide a fixing for the cover members or spaces 24 which have channel-shaped upper and lower edges and are resilient so that they may be moved longitudinally to cover, for example, spaces between the information bearing members 4. In order to locate the members 4 in desired positions, slidable clips 13 are provided. Fig. 7, to engage with ribs on the base of the box, and on each clip is mounted a socket 18 so that when a clip 13 has been positioned in a desired longitudinal position on the ribs A5, A13, an information bearing element 4 may be inserted through the front opening of the box so that the plate 1, Fig. 2b slides along edge 22 of clip 13, and the locating pin 21, and plug 20 Fig, 9, engage with the hole 16 and socket 18. The plug and socket serve also to provide a power supply to actuate the electric motor of the members 4. As shown in Fig. 13 a stock of information bearing assembly lines may provide a multiple system located between tubular upright supports 39.
Patent GB-370713-A (GB)
Title: Improvements in or relating to the brakes of rotary drawworks of well-boring plant
IPC: B66D5/02
Filed: 1931-05-26
Abstract: 370,713. Brakes for well-boring plant. NATIONAL SUPPLY CORPORATION, 120, Broadway, New York, U.S.A. May 26, 1931, No. 15366. Convention date, Sept. 6, 1930. [Class 103 (i).] For cooling the brake rims 5 provided at each end of the winding drum 4 of a rotary drawworks of oil-well boring plant, the inner periphery of each brake rim is provided with ribs 15 arranged to form a spiral groove. Cooling water is sprayed into the groove at a number of points by the pipe 16 and is carried towards the inner part of the rim and flows back outwardly over the ribs at the bottom part of the rim. The depth of the ribs decreases from the outer to the inner part of the rim.
Patent GB-794997-A (GB)
Title: Improvements in or relating to method and apparatus for transporting fluidised solids
IPC: B01J19/26
Filed: 1955-05-27
Abstract: <PICT:0794997/III/1> Fluidized solids may be circulated between reactors 1 and 2 by means of a conduit system comprising a vertically-disposed stand-pipe to contain down-flowing solids 9a; a valve means for regulating the flow of solids 13, preferably located 1-5 pipe diameters from the lower end thereof; an acute bend, preferably having a radius of about 1 pipe diameter at the base of said stand-pipe; a slanted riser 9c inclined at more than 50 degrees from the horizontal and initiating at said bend; a large radius bend initiating at said slanted riser and a vertically disposed riser 9 initiating at said large radius bend and provided with an upper outlet within the other of said vessels and a means for introducing riser gas into the conduits located at said acute bend 18 and a plurality of other aerating gas inlets, e.g. 17 and 16, preferably every 1-3, diameters along said slanted riser. Aerated gas admitted is generally in amounts of 0-3 ft.3/lbs. of solid conveyed usually with a particle size of less than a 1000 microns with a true density of 18-2000 lbs./ft.3.  The return conduits may also contain the above features.  The apparatus is particularly applicable to the fluid coking and cracking of heavy hydrocarbon oils, e.g. containing coke particles of 40-800 microns with a true density of 100 lbs./ft.3. with a coker pressure of 11 p.s.i.g. and a heater pressure of 12 p.s.i.g.  Specification 752,400 is referred to.
Patent GB-561467-A (GB)
Title: Improvements in electrical regulating apparatus
IPC: H02J3/16
Filed: 1942-11-02
Abstract: 561,467. Automatic regulation. JENNINGS, R. E., and FOSTER TRANSFORMERS & SWITCHGEAR, Ltd. Nov. 2, 1942, No. 15367. Drawings to Specification. [Class 38 (iv)] A constant voltage transformer or unit, of the kind comprising any arrangement of inductance or transformer in conjunction with a condenser in which the whole or part of the core or cores of the inductance and transformer are worked at an induction sufficient to produce a rate of change in magnetizing current much greater than the rate of change of applied voltage, has a condenser in series in the output circuit having an effective reactance equal to the inductive reactance of the constant voltage device to compensate the effect of varying load power factor. The condenser may be connected to the secondary circuit of a series connected transformer. Specification 463,947 is referred to.
Patent GB-418191-A (GB)
Title: Loop-taker for sewing machines
IPC: D05B57/14
Filed: 1934-05-23
Abstract: 418,191. Sewing-machines. FAIRWEATHER, W. C., 65, Chancery Lane, London.-(Singer Manufacturing Co. ; Elizabeth, New Jersey, U.S.A.) May 23, 1934, No. 15369. [Class 112.] The rotary hook loop taker of a lock-stitch machine comprises a cup-shaped member 10 carrying the hook with a groove 17 engaged by a retaining element 16 in the bearing rib 14 of the thread case 15. A spring 23 presses the retaining member outwards. The member is released for removing the thread case by a finger piece 24. To ensure the thread case 15 is replaced correctly relatively to the rotation restraining bar 25, the case is rotated in a clockwise direction till the rotation restraining finger extends under the raised part 27 of the plate 26 and engages the latch 28.
Patent GB-705418-A (GB)
Title: Improvements in internal combustion engines
IPC: F02F1/24
Filed: 1951-06-28
Abstract: 705,418. Cylinders. DAIMLER-BENZ AKT.-GES. June 28, 1951 [June 28, 1950], No. 15401/51. Classes 7(2) and 7(3) Preferably parallel overhead inlet and exhaust valves 7, 8 are mounted in a cylinder head 6, the valve 8, which is preferably the exhaust valve, being set back from the cylinder relative to the valve 7 in a main combustion space formed by a shallow offset pocket 10 preferably disposed exclusively in the head 6, and which tapers at one or both ends so that its outer wall is disposed somewhat tangentially to the cylinder bore periphery 2 as seen in plan view, whilst about one-half of the pocket area, at least about one-half of the area of the valve 8 and substantially the whole of the area of the valve 7, as thus seen, are within the periphery, from which the maximum external projection of the pocket is only slightly greater than that of the valve 8. The line joining the centres of the faces of the valves 7, 8 may be in the transverse plane of the cylinder or at an angle thereto, when the centres may be on opposite sides of the plane or the centre of the face of the valve 7 in the plane. The valve 8 may be displaced towards one correspondingly rounded end of the pocket 10. A sparking plug or plugs or an injection nozzle or nozzles may be located in the pocket 10 as at the points 11 and/or 12. The valve 7 may be set back from the cylinder relative to the plane of the head joint 5. The head 6 may be of grey cast iron or light metal.
Patent GB-625572-A (GB)
Title: Process for the emulsion polymerisation of conjugated diolefins
IPC: C08F36/04
Filed: 1946-05-21
Abstract: Liquid polymerization products are prepared by aqueous emulsion polymerization of conjugated diolefines with or without a minor proportion of an unsaturated copolymerizable monomer containing an ethylenic double bond in the presence of an emulsifying agent and 3-12 per cent by weight on the monomers of one or more C6 to C16 aliphatic mercaptans.  Specified diolefines are butadiene, isoprene, piperylene, dimethyl butadiene and methyl pentadiene.  Listed copolymerizable monomers include styrene, a -methyl styrene, a -p-dimethyl styrene, halogenated styrenes, acrylic and methacrylic acid esters and nitriles, ethyl fumarate, methyl vinyl ketone and methyl isopropenyl ketone. Preferred emulsifying agents are soaps of linseed and soybean oil fatty acids.  The preferred mercaptan is a tert. octyl mercaptan derived from diisobutylene, others specified are dodecyl mercaptans and tertiary mercaptans derived from the trimer and tetramer of isobutylene.  Polymerization promotors may be used, listed are amines, alkali ferricyanides and inorganic cyanides. The polymeric oil produced is soluble in benzene and may be hydrogenated or reacted with halogens, halogen acids, maleic anhydride, stannic chloride, sulphur, sulphur chloride and phosphorous pentasulphide.  It may be used to plasticise natural and synthetic rubbers, e.g. butadiene-acrylonitrile and butadiene-styrene copolymers.  Polyisobutylenes may be softened by the hydrogenated polymer.  Drying oils and paints may be obtained by addition of cobalt and manganese naphthenates.
Patent GB-645003-A (GB)
Title: A method of making titanium-containing copper alloys
Filed: 1947-06-12
Abstract: A method of making titanium-containing copper alloys consists in placing metallic titanium or a pre-cast copper-titanium mixture at the bottom of a vessel in which the alloy is to be melted, covering it with a flux, charging in copper base metal ingot, covering the charge with a mixture of charcoal and borax, heating to produce a melt having a small amount of pxygen and deoxidizing with a small amount of phosphorus.  The flux used may consist of 10 per cent copper oxide, 5 per cent potassium nitrate, 65 per cent borax and 20 per cent ground charcoal or 5 per cent potassium nitrate, 65 per cent borax and 30 per cent ground charcoal.  Other alloying elements may be included with the copper base metal ingot such as silicon, tin, zinc, lead or aluminium, e.g. 0.15-0.25 per cent of silicon.  The amount of titanium used may be 0.1-1.25 per cent of the product.
Patent GB-150301-A (GB)
Title: A method of and apparatus for lubricating couplings
IPC: F16N7/18
Filed: 1920-06-08
Abstract: 150,301. Oesterreichische Waffenfabriks Ges. Aug. 23, 1919, [Convention date]. Lubricant conveyed by mechanical means.-A clutch for motor-vehicles &c. is supplied with lubricant only when in the operative position. Fig. 1 shows a multiple-disk clutch in the operative position, lubricant passing from a stationary pipe m into the interior of the movable clutchmember c and thence to the disks a through openings f. On uncoupling, the member c is removed from the outlet of the pipe m, and the oil supply to the coupling is interrupted. A continuous circulation of oil is secured in the pipe m. Oil carried round by the fly-wheel h from an oil bath g is removed by a wiper and passes through a filter into the tube m. On uncoupling, oil still adhering to the disks is thrown through passages d in the outer drum b, and the disks are speedily cleansed so that they no longer revolve together.
Patent GB-767277-A (GB)
Title: Improvements in or relating to vacuum pumps
IPC: F04F9/00
Filed: 1954-05-26
Abstract: 767,277. Condensation pumps. HICKMAN, K. C. D. May 26,1954 [June 5, 1953], No. 15526/54. Class 71 In a vapour ejector vacuum pump the working fluid and the heating means may be dissociated to discontinue the operation of the pump without reducing the rate of heat-input to the pump. The stand pipe 14 and working fluid 16 are heated by an electrical element 38. The fluid 16 communicates with the open end of the pipe 14 and also with an evacuated chamber 44 formed between a cup shaped sleeve 42 and an insulating sleeve 46 sur rounding the end of the pipe 14. On rise of pressure within the pump fluid passes into the chamber 44 out of contact with the heater 38 and the pump stops. Four modifications are described in which the boiler chamber is connected below the fluid level to an evacuated reservoir and the height of the reservoir in some cases may be varied. In a further modification the bottom of the boiler comprises a bellows which when pressure in the pump rises expands and the fluid is withdrawn from the heating element. In a still further modification the stand pipe and heating element are suspended from a pressure responsive bellows which when the pressure in the pump rises lifts the stand pipe and associated heating element out of the working fluid. Specification 767,278 is referred to
Patent GB-131769-A (GB)
Title: Improvement in Pigments and in the Production of the same.
Inventor: DUKE JOHN FREDERICK
IPC: C09B61/00
Filed: 1918-09-24
Abstract: 131,769. Duke, J. F. Sept. 24, 1918. Pigments suitable for printers' ink, boot polish, &c. are prepared by treating starch, cornflour, dextrine, or other carbohydrate with tannic or other acid and perchloride or other salt of iron. For example, to 80 parts by volume of boiling water 20 parts by volume of the carbohydrate are added, the carbohydrate being previously mixed with part of the water. With 1000 volumes of the solution thus obtained are thoroughly mixed 5 volumes of tannic acid, and finally 2 volumes of iron perchloride solution of 50 per cent strength, whereupon the black pigment is immediately produced.
Patent GB-185508-A (GB)
Title: Improvements in liquid and powder spraying or blowing devices, or atomizers
IPC: B05B12/00
Filed: 1921-06-06
Abstract: 185,508. Rogers, F. H., (Matthews & Bro., Inc., W. N.). June 6, 1921. Multiple-way valves.-Apparatus for spraying liquid or blowing powder by air pressure has a trigger 10 for operating the air and liquid or powder valves and also a trigger guard 1<a>. Pivotally mounted in the trigger is a lock member 9 adapted to engage notches on the guard to hold the trigger back. The valves 14, 23 for the air and liquid or powder respectively are held on their seats by springs 16, 22 and have attached thereto plungers 13, 27 which are sequentially acted on by a saddle member 12 having legs 12a sliding in grooves on either side of the main casting and operated by means of the trigger 10. In order that the spring may be withdrawn with its valve when removed from the casting, the valve 14, Fig. 2<a>, is provided with a flaring projection 28 around which the upper coil of the spring 16 is coiled.
Patent GB-278058-A (GB)
Title: Improvements in pneumatic means for operating alarms and other devices
IPC: G08B13/10
Filed: 1926-06-21
Abstract: 278,058. Payne, C. J. June 21, 1926. Pneumatic actuation. - Electric switches 12, 13 in a telephone box are actuated from a piston device 6 either directly or by a member 9<a> carried by a ventilator operated by the device, a rubber cushion 4 carrying a board 2 being connected by a tube 5 to the piston so that the weight of a person lights the lamp in the box.
Patent GB-1006836-A (GB)
Title: Soap compositions
Inventor: RITCHIE ALEXANDER
IPC: C11D1/58
Filed: 1962-04-25
Abstract: Soap compositions contain, as a lime soap dispersant, an N-alkyl mono- or di-C2- 3-alkanolamine, an N-alkyl morpholine or an N-alkyl tris(hydroxymethyl)aminomethane, or mixtures thereof, the N-alkyl groups containing 10-16, preferably 12-14 carbon atoms.  The dispersant is suitably added in amounts of 5-20% by weight of the soap, and the invention is particularly applicable to tablets.  The soap is generally a sodium soap derived from mixtures of tallow and coconut oil, and the dispersant may be added to it in a crutcher in a liquid state before the soap is dried, or to dried soap chips before milling and plodding.  The compositions may also be produced in powder, flake or liquid form.