baber/WOPTO huggingface dataset:
Patent GB-242564-A (GB)
Title: Improvements in means for indicating deflation of pneumatic tyres
IPC: B60C29/00
Filed: 1925-07-20
Abstract: 242,564. Kennedy, J. E. July 20, 1925. Puncture or deflation, indicating.-A device for visually signalling, by the exposure of distinctively coloured bands, the under or over inflation of a pneumatic tyre comprises a hollow piston 16 carried in a casing 15 and pressed by a spring 17 against a flexible diaphragm 13 which is clamped between the edges of the casing 15 and the edges of an air-chamber 1, the spring pressure being so arranged that the diaphragm lies as a flat disc in the normal position. The air chamber 1 communicates through ports 11, 10 with the tyre valve x which is held open by a projection 8 engaging the valve stem 9. Signal bands 15<c>, 15<d> on the casing 15 are normally covered by a cylindrical piece 20 which is carried on pins 21 formed on the piston 16 and projecting laterally through apertures 15<b> in the casing 15. On a rise or fall in tyre pressure, the piece 20 slides on ribs in the casing 15 as the piston is moved by the diaphragm to uncover one or other of the signal bands 15<c>, 15<d>.
Patent GB-269378-A (GB)
Title: Improvements in electrolytic cells
IPC: C25B11/00
Filed: 1926-07-24
Abstract: 269,378. Automatic Telephone Manufacturing Co., Ltd., and Tarrant, R. W. July 24, 1926. Electrolytic condensers.-The plates of an electrolytic condenser, comprising electrodes inert to the electrolyte, are separated by linen tape or like material. Fig. 1 shows electrodes 3, 4 formed of strips of steel or soft iron bent into a grid formation and separated by a linen tape 8. The electrodes are carried by an insulating block 5 forming the cover of the cell and secured by a rubber band 9. In the form shown in Fig. 3, the electrodes 15, 16 are formed of mild steel or soft iron plates in a saturated solution of sodium hydrate or carbonate. One set of plates is coated with soft carbon 17 and the plates are separated by linen tape &c. 18. Rubber bands 19 hold the plates together. The cell may be provided with a celluloid safety disc which is blown out if the cell is overrun. Specification 248,466 is referred to.
Patent GB-166809-A (GB)
Title: Improvements in and relating to pneumatic wheels
IPC: B60B9/20
Filed: 1920-07-05
Abstract: 166,809. Massy, W. H. July 5, 1920. No Patent granted (Sealing fee not paid). Spring wheels with continuous flexible tread and hollow wheel body forming fluid chamber.-The tubeless pneumatic tyre 3 is in open communication with a pneumatic reservoir 2 formed by side discs 4, 5 of the wheel. The tyre is held between shaped rings 8, 9 and detachable rings 9, which are secured to the rim by spaced bolts 12 passing through hollow or tubular bridge-piecee 14. The discs 4, 5 are connected by reinforcing-stays 16. Any non-return air valve is fitted into the disc 4 to enable air to be pumped into the reservoir and tyre. The tyre is provided with an adhesive rubber lining which is extended to cover the beads to form a good packing and insure an air-tight joint between the beads and the rings 8, 9. The hub 6 is provided with the usual bolts 20 for securing it to a flange 21 connected to the bearing-hub so that the wheel may be readily detached. Specification 3940/12 is referred to.
Patent GB-905903-A (GB)
Title: Dialkylaminoethoxyketones having a coronary-dilating action and methods of preparingthem
Inventor: PACO GIANFRANCO DI
Filed: 1960-05-25
Abstract: The invention comprises coronary-dilating compounds of the general formula:-  <FORM:0905903/IV (b)/1> in which R represents methyl, b -phenylethyl or a -phenylpropyl, one of the letters a or c stands for the group -OCH2CH2X and the remaining letters stand for hydrogen, and X represents a dimethylamino or diethylamino group or a hydrogen halide of the same, or stands for a quaternary nitrogen atom so associated with methyl or ethyl groups that the derivative associated with a halogen is a tri-methyl or triethyl quaternary amine, together with processes for their preparation by reacting the appropriate o- or p-hydroxy substituted ketone or an alkali metal derivative thereof with the appropriate b -dialkylaminoethyl halide or its hydrochloride in the presence of a condensation agent which causes the condensation of the two reactants with the removal of hydrogen halide or an alkali metal halide.  Detailed examples illustrate the invention.
Patent GB-969680-A (GB)
Title: Reduction of titanium dioxide to metallic titanium
Inventor: SPRAUL JOSEPH ROBERT
IPC: C22B34/12
Filed: 1962-05-15
Abstract: Titanium dioxide and at least one of the carbides of aluminium or the alkaline earth metals are intimately mixed in a finely divided form (there being sufficient carbide or carbides that the metal contained therein is at least sufficient to reduce all the titanium dioxide to titanium) the mixture then being heated to a temperature of less than 1200  DEG C. for a time sufficient to complete the reduction to give metallic titanium carbon and the oxide of at least one of aluminium or the alkaline earth metals. The heating is preferably carried out in the absence of oxygen and nitrogen, e.g. in vacuum or in an inert gas (A) atmosphere, the temperature used may be 700-1200  DEG C. and the time of heating may be from 15 to 90 minutes.  Sodium fluoride may be added to the mixture as an accelerator and there is preferably an excess, e.g. 25% excess, of the carbide in the mixture.  The reactants preferably have a particle size of 10-60 microns.  Titanium metal may be recovered from the aggregate by electrolysis in a fused sodium chloride bath containing TiCl2 and some TiCl3 possibly after the optional steps of separating some of the detritus by washing, followed by a fluid separation process, such as hydroseparation air separation or flotation processes, and the removal of oxides by acid leaching. The electrolysis cell comprises a stainless steel pot with a perforated annular steel basket anode into which dips a steel rod cathode.  Two such cells are connected by a stainless steel pipe which is normally blocked by frozen salt, the cells being used alternately, the fused salt being transferred from one to the other by melting the salt plug to allow removal of the cathode deposit.
Patent GB-381163-A (GB)
Title: Improvements in and relating to dummy or practising typewriter and like keyboards
IPC: G09B13/02
Filed: 1931-06-27
Abstract: 381,163. Typewriters &c. ORLING, A. and ORLING, C. W., Wheatstone, Birchwood Road, Witmington, Dartford, Kent. June 27, 1931, No. 18663. [Class 100 (iv).] In a dummy keyboard for practising the use of a typewriter, type-composing machine, calculating-machine, cash register, printing- telegraph, or the like, transverse rods limit movement of pivoted key-members, and means are provided for returning the key-members after depression. In the keyboard shown in Fig. 2, the keys d are secured to spring strips e which are pivoted on transverse rods c<2> and have arms resting on transverse rods c<3> for limiting movement of the keys. The rods are mounted in cheeks b and are retained by the casing of the keyboard. The keys may have three attaching lugs, two of these being bent under the sides of the strip, and the third being passed through a hole in the middle of the strip and bent under. The spacing-key is secured to a frame pivoted at the rear. In the arrangement shown in Fig. 5, the key d is secured to a wire frame h having bends or coils engaging the rod c<2>, a spring h<2> coiled on the rod having limbs engaging the frame, and a rod h<3> or the rod c<3>. In another arrangement, the keys are secured to strips provided with lugs engaging the rods c<2>, and springs engaging the rods c<3>.
Patent GB-440344-A (GB)
Title: Manufacture of 4-nitroso-diphenylamine derivatives
Filed: 1934-06-25
Abstract: 4-nitroso-3-alkoxydiphenylamines are obtained by nitrosating 3-alkoxydiphenylamine having a free 4-position, in presence of sulphuric acid not containing more than 25 per cent of water. According to examples: (1) 3-methoxy diphenylamine, and 3-ethoxy-4<1>-methyl-diphenylamine, are treated with nitroxyl sulphuric acid in 96 per cent sulphuric acid, with or without solvents such as o-dichlorbenzene and glacial acetic acid, and (2) 3<1>: 4<1>-dichloro-3-methoxy-diphenylamine is treated with sodium nitrite in 90 per cent sulphuric acid to give the corresponding 4-nitroso compounds.  The following products are also specified: the 3-methoxy-2<1> methyl, 3-ethoxy, 3-methoxy-2<1> : 5<1>-dimethyl, 3-methoxy-3<1>-methyl, 3-methoxy-3<1>-chloro, 3 : 4<1>-dimethoxy, 3-cyclohexyloxy, and 3-isopropyloxy-4-nitrosodiphenylamines. Further specified nitrosating agents are the esters and anhydride of nitrous acid.
Patent GB-1443127-A (GB)
Title: Pulsed multiline co2 laser oscillator spparatus and method
IPC: H01S3/097
Filed: 1974-04-30
Abstract: 1443127 Lasers UNITED STATES ENERGY RESEARCH & DEVELOPMENT ADMINISTRATION 30 April 1974 [23 May 1973] 18792/74 Heading H1C The dominant P(20) transition of a CO 2  laser is suppressed to allow the P(16), P(18), P(22) and P(24) transitions to successfully compete for available upper state population, suppression being effected by wavelength dependent loss introduced within the laser resonator by an adjustably tilted Fabry-Perot etalon filter. A transverse excited gas discharge laser 10 is shown, in which a CO 2 , He, N 2  gas mixture is enclosed in a container having a Brewster window 14 and a contiguous plane or spherical resonator mirror 16. The resonator is completed by a plane mirror 18, and contains a germanium acousto-optic modulator 30 for mode locking and a tiltable sodium chloride Fabry-Perot etalon 36 for output wavelength selection. Pumping is effected by an electrical discharge between Rogowski profile electrodes 20, 22 and is initiated by a preionization electrode 28 charged through capacitors 30, 32.
Patent GB-622284-A (GB)
Title: Electrical connector and method of manufacturing the same
IPC: H01R4/18
Filed: 1946-06-22
Abstract: 622,284. Cable terminals. AIRCRAFTMARINE PRODUCTS, Inc. June 22, 1946, No. 18807. Convention date, July 6, 1945. [Class 38 (i)] [Also in Group XXII] A terminal is formed from a blank 20 which is swaged at 22 and is worked to form a connector 24 and ferrule, Figs. 13, 16, comprising two coaxial barrels 26d, 28d of different internal diameters, the barrel 26d receiving stripped conductors W of a cable C and the other barrel 28d passing over the cable insulation. The edge 29 of the swaged portion is curved along an arc of three to five times the radius of the barrel 28d, which is worked to two-thirds the thickness of the adjacent portion 26. An offset 30d is provided to render the ferrule barrels 26d, 28d, coaxial and so guide the conductors W onto the connector where it is crimped to the conductors at 32 and to the insulation at 34. In a modification (Fig. 17, not shown), barbs are formed in the larger barrel to ensure a stronger grip on the insulation. Specifications 569,366, 621,949 and 622,198 are referred to.
Patent GB-654529-A (GB)
Title: Improvements in or relating to vaporizers and charges therefor
IPC: A01M1/20
Filed: 1948-07-13
Abstract: 654,529. Vaporizers for air-sterilizing etc.; fumigating materials. SCHMITZ, F. W. July 13, 1948, No. 18807. Convention date. July 25, 1947. [Class 81(i)] In a vaporizer of the kind in which a web of absorbent material impregnated with a vaporizable substance is fed continuously through a localized heating zone, the web, after passing through the vaporizing heating zone, is wound on a take-up spindle. According to one modification, Fig. 3, paper impregnated with propylene glycol is fed from a supply roll 33, under an idler 19, over an internally electrically heated and electrically driven heater roll 15, under an idler 20, to a take-up bobbin 36 which is frictionally driven by a roll 21. The vapours escape through an opening 40 in the cover 39 which exposes the top half of the heated roll. According to a modification, Fig. 6, impregnated webbing is fed from a supply roll 60, between rolls 53, 53<1>, transversely across an electrically heated conduit between vertically extending spaced parallel plates 52, 52<1>, between rolls 54, 54<1> to a take-up bobbin 62. The conduit is electrically heated from below. Roll 54<1> and bobbin 62 are driven. The supply roll may be replaced by a strip of webbing compacted in zig-zag arrangement. Other glycols such as tri-ethylene glycol may be used and the glycols may contain a proportion of water. The Specification as open to inspection under Sect. 91 describes also a modification wherein the impregnated strip is fed from a pack formed by folding the strip in zigzag configuration, the strip being continuously drawn from the pack under an idle roll, over a heated roll, under a second idle roll by means of a friction driven roll and co-operating pressure roll, and the depleted strip issuing between the two lastmentioned rolls being torn off and discarded. This subject-matter does not appear in the Specification as accepted.
Patent GB-769903-A (GB)
Title: Improvements in dual temperature refrigeration systems
IPC: F25B9/00
Filed: 1955-06-29
Abstract: 769,903. Refrigerating. GENERAL ELECTRIC CO. June 29, 1955 [June 29, 1954]. No. 18837/55. Class 29 In a compression refrigerating system or heat pump containing two refrigerants, at one load one is circulated and the other stored and, when the load changes, the other is circulated and the previously-circulated one is'stored. In the position shown. refrigerant 20 is circulated by compressor 11 through condenser 12, a multi-way valve 13, pipe 16, receiver 18, pipe 22, right-hand valve 24 and evaporator 25. Refrigerant 19 is stored in a receiver 17. When the load changes, a control unit 14 closes the righthand valve 24 and, after compressor 11 has transferred all refrigerant 20 into receiver 18, moves the valve 13 and opens the lefthand valve 24. Thereafter refrigerant 19 is circulated and refrigerant 20 is stored until the load changes in the reverse direction.
Patent GB-676057-A (GB)
Title: Improvements in high pressure valves with gland packings
IPC: F16K41/02
Filed: 1950-07-28
Abstract: 676,057. Stuffing-box packing. S. S. WHITE DENTAL MANUFACTURING CO. Sept. 28, 1950 [July 28, 1950], No. 18887/50. Class 122(v) In a high pressure valve having a rotatable stem 11 and a gland for preventing leakage between the stem and the valve body 1, the gland packing comprises rigid end rings 21, 25 having on their opposed faces an annular ridge 23 and a complementary groove 26 respectively, and intermediate packing rings 27-31 are disposed between the end rings and being initially flat are caused by compression between the end rings to conform to the opposed circular ridge and groove. The packing rings are alternately of hard and soft material such as hard and soft grade nylon. A spring ring may be fitted under the end ring 21.
Patent GB-662502-A (GB)
Title: Improvements in artificial legs
IPC: A61F2/80
Filed: 1949-07-19
Abstract: 662,502. Artificial limbs. HANGER & CO., Ltd., J. E. and BROWN, P. May 16, 1950 [July 19, 1949], No. 18993/49. Class 81 (ii) An artificial leg for above the knee amputation has a non-metallic stump socket detachably secured to a metal thigh piece. In the described form, a wooden socket d has hollow plugs e screwed into it at circumferentially spaced points and the thigh portion a is secured to these by screws f threaded into them. In order to assist in locating the parts, the plugs have countersunk outer faces and the metal of the thigh member is indented to engage therewith. Additional attachment brackets g may be provided at the base of the socket.
Patent GB-805996-A (GB)
Title: Piston type internal combustion engine
IPC: F02B75/26
Filed: 1957-06-17
Abstract: 805,996. Two-stroke engines; driving- gear. ROTH, A. June 17, 1957 [June 18, 1956], No. 19080/57. Class 7(2) Polygonally arranged cylinders with common working chambers 9 have doubleacting pistons connected by links 6, bellcranks 7 and connecting rods 8 to a central crankshaft. To vary the times of opening and closing of piston-controlled ports 10, 11 which times may be such as to effect supercharging, the bell-cranks 7 have eccentric pivots 14 conjointly controlled through gears or gear segments 16, 17. A fuel injector 18 is provided. As shown the ports 10, 11 respectively scavenge and exhaust but if one or more inlet or outlet valves are provided at eadh polygon outer corner both ports 10 and ports 11 exhaust or scavenge respectively.
Patent GB-638567-A (GB)
Title: Improvements in or relating to plasticized vinyl halide compositions
IPC: C08K5/12
Filed: 1947-07-17
Abstract: Vinyl halide polymers and copolymers are plasticized with a liquid ester of 4-cyclohexene-1.2-dicarboxylic acid.  Esters specified are the diethyl, di-n-butyl, di-isoamyl, di-2-ethylbutyl, di-2-ethylhexyl, dicyclohexyl, phenyl methyl, dibenzyl, ditetrahydrofurfuryl, di-2-methoxyethyl, di-2-n-propoxyethyl and di-ethoxymethyl esters.  Resins specified are a -, b - and g -polyvinyl chloride, polyvinyl bromide and copolymers of vinyl chloride with vinyl acetate, vinyl cyanide, vinylidene chloride or methyl methacrylate.  Polyvinyl organic esters and stabilizers such as metallic oxides, soaps, lead salts, e.g. lead silicate and triethanolamine may be added.
Patent GB-613696-A (GB)
Title: Improvements relating to the manufacture of tetrasubstituted ethylendiamines
Filed: 1946-06-27
Abstract: Excess N - (p - methoxy - benzyl) - aniline is heated with b -dimethylamino-ethyl-chloride or its hydrochloride to above 100 DEG C., treated with hot water, cooled to 30-40 DEG  C. and excess N-(p-methoxy-benzyl)-aniline filtered off, if necessary after adjusting the pH of the aqueous solution to 5.5-6.5.  Pure crystalline N-phenyl-N-(p-methoxy-benzyl) - N1,N1-dimethyl-ethylenediamine mono-hydrochloride is then obtained on cooling the filtrate to about 0 DEG  C.  The reaction may be carried out in the presence of an organic solvent such as benzene or an excess of N-(p-methoxy-benzyl)-aniline.
Patent GB-517566-A (GB)
Title: Improvements in roentgen-ray apparatus
IPC: A61B6/02
Filed: 1938-06-29
Abstract: 517,566. Rontgen-ray apparatus. WORRAD, H. S. June 29, 1938, No. 19316. [Class 98 (i)] An apparatus which permits section-radiographs to be taken with an X-ray installation of the kind comprising a couch C, Fig. 1, over which the ray-tube 35 is carried by an arm 2 rotatable about its own axis in a bracket 33 slidable on a vertical post 34 mounted on a horizontal runway, consists in a rod 3 which may be rigidly secured to the ray-tube arm 2 and to a tube 6 which is pivoted at 8 to a bracket 9 on the couch and is articulated to a cassette and grid holder 15 mounted for horizontal movement beneath the couch. The height of the pivot 8 above the couch is adjustable to bring it into the plane of the bodysection to be radiographed. The connection between the rod 3 and the ray-tube arm 2 comprises a member 1 embracing and clamped to the arm, to which member the rod is pivoted at 5; and a detachable clamping member 4 is provided which normally prevents the rod from turning on the pivot 5, but which is removed if it is desired to take radiographs without rotation of the tube-arm 2. For effecting displacement of the post 34 along the couch to make an exposure, apparatus is used comprising a fixed framework 17, Fig. 5, carrying a wheel 16 on which is wound a steel cable 18. This wheel is coupled by chain gearing 20 .... 24 to a slide 24A which is connected to the frame 17 by springs 26 and is coupled to a dashpot. With the post 34 in its final position, the end of the cable 18 is attached to the post, and this is moved to its initial position, thereby stressing the springs 26. In this position the slide is held by a catch 29. When the exposure is to be made, the catch 29 is released, whereupon the springs 26 cause the slide to return against the action of the dashpot, and the post is thereby displaced along the couch.
Patent GB-909072-A (GB)
Title: Improvements relating to bituminous mixtures
Inventor: MOUNT WILLIAM ALBERT
IPC: C08K3/34
Filed: 1959-06-05
Abstract: A mixture of a pitch type material, such as bitumen or coal, wood or cellulose tars, with particles of a heavy material held in suspension is formed by first adding a clay or a modified form of clay, such as "Bentone" or "Fulbent" (both Registered Trade Marks), to the pitch type material to form a gel with its oil components, and then adding particles finer than 8 B.S.S. (2.06 mm.) of a material of S.G. greater than that of the pitch type material.  The particles added may include a powdered boron compound, such as boron trioxide, sodium tetraborate or boric acid, and/or lead powder.  The mixture may be gelled by mechanical means such as milling or stirring, and/or by chemical means such as using a polar solvent.  Examples are disclosed which show the heavy material content of the mixture to be 3-15%.
Patent GB-147437-A (GB)
Title: Improvements in electric condensers
IPC: H01G4/01
Filed: 1920-07-07
Abstract: 147,437. Ges. f³r Drahtlose Telegraphie. March 24, 1914, [Convention date]. Condensers.-To ensure a uniform distance between the armatures 3 and the intervening insulating-plates 2, the armatures are formed of thin flexible metal sheets with projections, corrugations or the like distributed over both surfaces. The condenser shown has glass plates and is adapted for oilfilling.
Patent GB-381564-A (GB)
Title: Improvements in or relating to gas ovens and the like
IPC: F24C15/32
Filed: 1931-07-06
Abstract: 381,564. Gas cooking stoves. GENERAL GAS APPLIANCES, Ltd., Corporation Road, Audenshaw, near Manchester, and COLEMAN, F. S., 64, Osborne Road, West Point, Levenshulme, Manchester. July 6, 1931, No. 19370. [Class 126.] Baffles.-A gas oven of the kind in which the flue outlet is arranged at the bottom, the hot gases rising up the back or sides and descending through the centre of the oven, is provided with one or more baffle-plates which intercept part of the rising gases and are provided with openings for the passage of the diverted gas streams. The form shown comprises a plate a with turned-up sides b adapted to slide on the shelf runners of the oven and formed with a series of inclined louvre openings fl and a cut-away portion at the rear, above the burner. A plate g is slidably mounted below the plate a and formed with apertures g<1> providing a hit-and-miss control of the apertures f<1>. A second sliding plate h controls the size of the rear opening above the burner. The effect of the plate may be varied by altering its height in the oven, and by inverting it. The plates g, h for controlling the apertures may be omitted. Specification 283,450, [Class 126, Stoves &c.], is referred to.
Patent GB-631108-A (GB)
Title: Improvements in or relating to variable condensers such as trimmers
Filed: 1946-06-28
Abstract: 631,108. Variable condensers. PHILIPS LAMPS, Ltd. June 28, 1946, No. 19381. Convention date, May 13, 1942. [Class 37] A variable condenser comprises a plate of insulating material 9, movable between two electrodes provided on each wall of a slit 3 in a common carrier 1 of homogeneous material. To obtain a low minimum capacity, the carrier 1, which is a cylinder of ceramic material, has an axial bore 2 and a transverse slot 4 provided in it, a spring 10 in a groove 11 serving to retain the plate 9 in position. The electrodes are confined to that part of the slit 3 which lies below the slot 4. The surfaces of the plate 9 may be covered with a conducting material, the two surfaces being connected, and in this case both the electrodes on the walls of the slit 3 and the plate electrodes may be coated with an insulator, e.g. quartz. In a modification, the slit is formed in one end of the cylinder, the plate being attached to a rod passing up the axial bore of the carrier. Specification 454,845, [Group XXXV], is referred to.