baber/WOPTO huggingface dataset:
Patent GB-485323-A (GB)
Title: Improvements relating to precision grinding machines
IPC: B24B47/20
Filed: 1937-04-14
Abstract: 485,323. Grinding-machines. CHURCHILL MACHINE TOOL CO., Ltd., and JONES, J. C. April 14, 1937, No. 10584. [Class 60] In a grinding-machine having automatic infeed mechanism for the grinding-wheel, whereby the wheel is fed to a predetermined position for finishing the work and in which position it is maintained for a predetermined interval during which an electric circuit is closed, after which it is withdrawn from the work, the interval is controlled by means of a condenser, across which a voltage is built up at a controllable rate. The wheel slide a is fed through gearing d, e, f, by movement of a piston c in a cylinder to which fluid is fed through a reversing-valve b ; when the piston rod engages a plunger g in a cylinder h connected by piping h<1> to a calibrated leak-off valve i, the feed is slowed down, and as the slide reaches its final position the plunger closes the contacts k, m. These contacts are in series, across direct current mains p, q, with a condenser s, a fixed resistance t, which determines the minimum time for charging the condenser, and a variable resistance u to determine the actual time for charging the condenser. Across the condenser is placed a gas-filled impulse valve, of the neon or other type, v in series with a relay w, which is operated when the voltage across the condenser rises sufficiently to make the valve conductive. The relay closes a contact w<1> to energize a relay coil x, closing the contact x<1> to maintain the circuit of the relay coil x. The coil x also closes a contact x<2> energizing a solenoid n and thereby reversing the valve b to withdraw the grinding-wheel from the work. The relay coil x also closes a contact x<3> so as to discharge the condenser through the relay coil w ready for the next cycle of operations. The dwell of the grinding- wheel in the finishing position is determined by adjustment of the variable resistance u by a knob y which may be calibrated ; a pilot lamp z remains lit until the dwell period is completed. Specification 465,210 is referred to.
Patent GB-1025095-A (GB)
Title: Improvements in adhesive products such as labels and tapes
IPC: C09J7/29
Filed: 1963-03-18
Abstract: A label or tape has as a top layer 21, Fig. 2, or coating a solution of a vinyl chloride-vinyl acetate copolymer, 100 parts, a soft alkyd resin, 40 parts, and titanium dioxide, 150 parts, in 375 parts of methyl-ethyl ketone, and as a pressure-sensitive adhesive coating crepe rubber, 100 parts, and a glycerol ester of hydrogenated resin, 105 parts, in 800 parts of toluene.
Patent GB-822763-A (GB)
Title: Improvements relating to the manufacture of refractory bricks and refractory masses from chromium ore
IPC: C04B35/42
Filed: 1957-04-01
Abstract: Refractory masses containing chromium ore are obtained by first wetting or coating grains of the ore with silica and then with an alkaline earth metal oxide.  Progenitors can be used instead of the oxides.  The mol ratio of alkaline earth-metal oxide to silica is preferably 2 to 1 but an excess of the oxide can be allowed. Magnesium is included as an alkaline earth metal.  The finest grains are preferably removed before the ore is treated, but this finest portion, as it contains the majority of any gangue present, can act as a flux when e.g. magnesite or corundum is added to the coarse grains of ore, but not more than 30%-relative to the total weight of additive and finest grains-is used.  When the grains are wetted, waterglass, or an organic silicate, e.g. a silicone solution is used.
Patent GB-200586-A (GB)
Title: Improvements in and relating to locomotives
IPC: B61C7/00
Filed: 1922-04-13
Abstract: 200,586. Margetson, O., and Robinson, P. G. April 13, 1922. Yielding-toothed wheels.-In a locomotive in which the prime mover consists of oppositely disposed engines having a crank shaft or shafts geared to an auxiliary shaft 50 provided with cranks 51 coupled to the cranks of the main driving,wheels, the crank shaft 36 has toothed wheels 47 which engage a toothed rim 49 connected by half-round bearings 57 and initiallystressed tangential springs 56 to an inner portion 55 on the shafts 50, the bearings and springs being retained by rings 61 bolted to opposite sides of the rim.
Patent GB-1331914-A (GB)
Title: Method of processing non-tobacco plant material  having a low wood content
IPC: A24B15/16
Filed: 1972-03-08
Abstract: 1331914 Tobacco substitutes TAMAG BASEL AG 8 March 1972 [9 March 1971] 10711/72 Heading A2C A tobacco substitute comprises non- tobacco plant material having a low or zero content of chlorophyll, fat and wood, and contains at least 7.5% pectin, at least 2% amino acids, at least 10% sugar, and optionally sodium carboxymethylcellulose and/or an humeotant. Plant materials exemplified, as components of mixtures of two or more, are tea leaves, potato peelings, rose petals, anise root ends, tomato leaves, thyme roots, stinging nettle, spruce needles, straw, sour cherry leaves, ebony leaves, woodruff, maple bark, chestnut leaves, maize leaves oat bran, oak leaves, dried fern and black tea. Many others are specified. Preferably, the pectin,: amino acids and sugar are added in the form of raw plant extracts of which the following are exemplified: apple and pear pectins, residues from must manufacture, fruit concentrate from peaches and plums, soybean flour, hydrolysed soybean flour, clove powder, nutmeg powder, molasses, malt sugar, and fruit extract containing glucose and fructose: Other additives exemplified are: glycerol, sorbitol, diethylene glycol, citric acid, tartaric acid, potassium carbonate, sodium polyphosphate, menthol, and asbestos. The non-tobacco plant material is wet ground to form a paste, the other ingredients being added before or after grinding, and the paste is moulded into sheets, strands or flakes which are then dried.
Patent GB-564470-A (GB)
Title: Improvements in and relating to dish washing apparatus
IPC: A47L15/06
Filed: 1943-07-02
Abstract: 564,470. Dish-washing apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. July 2, 1943, No. 10751. Convention date, July 3, 1942. [Class 138 (i)] [Also in Groups VIII and XXIX] A dish-washing machine comprises a vat 15 in which liquid is circulated by an impeller 16 driven by an electric motor, the stator 17 of which tends to rotate clockwise due to the reaction torque exerted thereon which is a function of the amount of liquid being circulated in the vat, and the reaction torque controls the supply of liquid to the vat by releasing a latching means which holds open a valve which normally closes under pressure. As shown in Fig. 4, the valve rod 20 is held in open position of the valve by a lever 22 held by engagement of a spring-pressed pin 27 on the lever 22 with a latch 26 connected to the stator 17. The lever 22 is moved to open the valve by means of a cam 25 operated by a control knob 23 and a flexible connection 24. The cam 25 is returned to the position shown in Fig. 4, when the catch 26 holds the lever 22. The catch is maintained in position by a spring 31 surrounding a guide bolt which limits the counter-clockwise movement of the catch. At a certain value of the torque reaction, the catch 26 moves to the dotted line position, and the valve then closes under pressure.
Patent GB-1508673-A (GB)
Title: Apparatus for feeding sheets
IPC: G07B15/00
Filed: 1975-03-14
Abstract: 1508673 Inking-apparatus PENNSYLVANIA RESEARCH ASSOCIATES Inc 14 March 1975 [30 April 1974] 10761/75 Heading B6C [Also in Division B8] Apparatus for printing on sheets comprises an impression-roller 19, printing-drum 133, ink roller 131, and ink transfer roller 132, the rollers 131 and 132 and drum 133 being mounted on respective levers 135, 141, 144 pivoted at 136, 143, 145, the levers so co-operating that by manually rotating a lever 134 the members 131, 132, 133, 19 can either be all spaced from each other or can be brought into contact in the order 131, 132, 133, 19.
Patent GB-809987-A (GB)
Title: Improvements in or relating to the anchoring of spigots in socket holes
IPC: E21D21/00
Filed: 1957-04-02
Abstract: 809,987. Bolts; eyes and wedges. SOUTH AFRICAN BOLTS & NUTS (PROPRIETARY) Ltd., and HAMILTON. SONS & PARTNERS (PROPRIETARY) Ltd. April 2, 1957 [April 6, 1956], No. 10774/57. Classes 89(1) and 89(2) Means for ancoring a spigot 1 in a hole 8 comprises a cut-out 4 in the peripheralsurface of the spigot, the depth of which cut-out decreases from a maximum to a minimum, both axially towards the base of the hole and perpherally, and a wedge 10 in the cut-out. The wedge may be temporarily held in the cut-out by a circlet of wire engaging groove 12, and may be formed on its outer-surface with portion 11 of a screw-thread. Thus by turning the spigot the wedge is moved axially and circumferentially of the cut-out to anchor the spigot in the hole. The outer-end of the spigot may have screw-threads 2 or be formed with an eye.
Patent GB-108004-A (GB)
IPC: C10C1/04
Abstract: 108.004. Grimwade, W. R. July 11, 1916. Tars, distilling.-Tar oils, carbolic acid, cresylic acid, and other products of distillation of coal tar are distilled into the presence of a non-oxidizing or inert gas, such as nitrogen, carbon dioxide, or flue gases. The gas may be introduced under pressure into the still and flow through the condenser.
Patent GB-1130696-A (GB)
Title: Process for producing a homopolymer or copolymer of ethylene, and catalysts therefor
IPC: C08F2/00
Filed: 1967-03-08
Abstract: 1,130,696. Ethylene polymerization catalysts. SUMITOMO CHEMICAL CO. Ltd. 8 March, 1967 [8 March, 1966], No. 10904/67. Heading C3P. A catalyst for ethylene homo- and co-polymerization comprises (1) a substance obtained by at least partially reacting the product of reaction of a vanadium compound with a phosphoric acid and/or its derivative with an alcohol or phenol, and (2) a compound of formula R n AlX 3-@ , where R is a hydrocarbon group of 1 to 8 carbon atoms, X is a halogen, alkoxy or hydrogen radical, and n is not more than 3. The formation of component (1) may be a twostage or single-stage process. The extensive examples use the following: catalyst components (1) vanadium pentoxide/orthophosphoric acid/ n-butanol, 2-ethyl-1-hexanol, hexadecanol, benzyl alcohol, phenol, cyclohexanol, ethylene glycol, ethylene glycol monomethyl ether, methanol, n-propanol, n-pentanol, 3-methyl-1- butanol, or n-octanol, and the following catalyst components (2) ethyl aluminium dichloride, ethyl aluminium sesquichloride, trimethyl aluminium ethyl aluminium dichloride/aluminium chloride mixture, diethylaluminium bromide or iodide, diisobutyl aluminium hydride, trihexyl aluminium, or diethyl aluminium ethoxide Exemplified comonomers are propylene, butene- 1, butadiene, and dicyclopentadiene, and solvents are n-heptane, benzene, tetrachlorethylene, decalin, cyclohexane and tetralin.
Patent GB-431365-A (GB)
Title: Improvements relating to tool and like grinding machines
IPC: B24B27/00
Filed: 1934-04-11
Abstract: 431,365. Grinding. LUMSDEN MACHINE CO., Ltd., BLAKE, E. R., LUMSDEN, W. S., and STANIER, J. H., Hawks Road, Gateshead, Co. Durham. April 11, 1934, No. 10967. [Class 60] A tool &c. grinding machine comprises two, or more, parallel spindles a, b each carrying two grinding-wheels e and driven by an electric motor, the motors being mounted side by side and housed in a common watertight casing d. The casing is mounted on feet g, h attached to the floor j of the water pan of the machine, and the feet are hollow and register with apertures k, m in the pan, thus serving for the inlet and discharge of air for ventilating the motors ; baffle plates depending from the floor j are provided to facilitate the ventilation. The tool is held by hand during grinding and supported by rests (not shown).
Patent GB-377180-A (GB)
Title: Improvements in or relating to sample-cards and like display devices
IPC: G09F5/04
Filed: 1931-04-14
Abstract: 377,180. Display cards. FURBER, W. J. K., Aberfoyle, Scraptoft, near Leicester, and ENGLISH, R., Gayton Lodge, Leicester Forest East, Hinckley Road, Leicester. April 14, 1931, No. 10984. [Class 3 (ii).] A display card or the like comprises one or more apertures in the form of an article, in or behind which the material f r o m which the article is to be made is arranged. A s shown, the material to be displayed is slipped or secured between a front member 1 of cardboard, metal, wood, celluloid or other material which is apertured at 2, 3, 4 to represent the various parts of a shoe, and a backing sheet 5 having corresponding embossed portions 6, 7 to which the front sheet is either hingedly attached at 9 or permanently secured round the edges. The sheet 1 may carry additional markings or devices to enhance the effect of reality, such as a shaded portion 14 to represent the interior of the shoe seen in perspective, and an ornamental buckle 12, and may further be adapted to represent the article in wear. In the case of a shoe with a strap, this may be represented by a further aperture through which the material is seen. Instead of embossing the sheet 5, suitable packing may be provided to cause the material to protrude slightly through the apertures. A protective flap may be used to keep the device clean when not in use. Reference has been directed by the Comptroller to Specifications 19738/09, 136/15 and 237,702, [all in Class 3 (ii), Advertising &c. other than by moving &c.].
Patent GB-1424892-A (GB)
Title: Seal
IPC: F16C33/22
Filed: 1973-05-21
Abstract: 1424892 Shaft seals GUMMIKOMBINAT BERLIN VEB 21 May 1973 [23 May 1972] 10984/73 Heading F2B An annular elastomeric dynamic seal for shafts or shaft collars has a contacting surface provided by regularly spaced staggered rhombic areas 2, Fig. 3, each formed on a projection comprising faces 21, 21<SP>1</SP> which are at right angles to the collar or shaft surface and on the liquid side of the seal, and surfaces 4, 4<SP>1</SP> sloping away from the areas 2 towards the air side of the seal. The faces 21, 21<SP>1</SP> pump liquid towards the liquid side according to the direction of rotation. Triangular areas 5 on the liquid side pumping liquid towards the areas 2 and a continuous contact zone 7, Fig. 6, with projections having pumping surfaces 81, 81<SP>1</SP> on the air side for excluding extraneous contaminants may be provided. The seal may comprise a garter spring or may be in the form of a bearing 116 or thrust pad 121. (For Figures see next page.)
Patent GB-527709-A (GB)
Title: Improvements in sliding windows, shutters and like panels
IPC: E05F11/42
Filed: 1939-04-11
Abstract: 527,709. Sliding windows. BECKETT, LAYCOCK & WATKINSON, Ltd., and BUSHNELL, F. B. April 11, 1939, No. 11010. [Class 20 (iii)] In a window, shutter or like panel of the kind moved by rack and pinion from a handle, the pinion housing and guide in addition to being attached to the frame structure are detachably secured to a connecting plate so as to locate the pinion axis accurately with respect to the rack. The top edge of a fixed pane 11 carries a housing 11 for the driving shaft 17 by which motion is transmitted from a handle (not shown) through a gear box (not shown) to pinions 19 on the squared ends of shaft 17. Pinions 19 co-operate with racks 22 carried by composite channel 23, one part 24 of which receives the movable pane 10, the other part engaging a U-shaped rib 26 screwed to the wooden post 13 and having tongues 35, Fig. 7, turned over through slots 44 to secure a plate 28 to the guide 26. Slots 44 are made longer than tongues 35 to allow vertical play. A screw 32 with a dowel end 33 passes through the pinion housing 20, a hole 34 in plate 28 and a similar hole in the back plate 29 of housing 20 to position the pinion 19 securely with respect to the rack 22 The plate 28 has two holes 34 so that it can be used'for left or right guide. The housing 20 is further secured to post 13 by a screw 36 passing through lug 37 which is concealed by channel 38 which also conceals and protects the teeth of rack 22.
Patent GB-959989-A (GB)
Title: Improvements in bending machines
IPC: B21D5/04
Filed: 1963-03-20
Abstract: 959,989. Angular bending. SMERALOVY ZAVODY NARODNI PODNIK. March 20, 1963 [March 22, 1962], No. 11021/63. Heading B3E. A bending machine for making a succession of bends in a workpiece has a stop member movable to advance the workpiece in a plurality of stepwise forward movements, a plurality of switches corresponding to the number of steps of movement, the switches being arranged to be actuated in succession by said stop member in response to said movements and each being operable to initiate both a bending operation on said workpeice and the movement of the stop member in the succeeding step, the movement of the stop member being effected by an electric motor and a rack and pinion drive. A sheet 6 to be formed with a succession of bends is pushed forward between a fixed lower plate 2 and an upper clamp plate 4 by a pusher 7, moved by rack and pinion means, until a dog 8a on an arm 8 of the pusher 7 actuates a first switch 9a to bring the pusher to rest. Thereupon the plate 4 moves down to clamp the sheet 6 and a bending arm 5 is swung up through an angle preset by means of a dog on a rotatable drum and a further switch to bend the sheet 6. The plate 4 is then lifted and the pusher 7 moves the sheet 6 forward until stopped by the succeeding switch 9b which initiates the next bending operation. Further bends are similarly formed. Switch means may be provided to allow short displacements of the sheet 6 for successive bending to produce a given radius.
Patent GB-184836-A (GB)
Title: Improvements in and relating to internal combustion engines
IPC: F02M67/00
Filed: 1921-04-18
Abstract: 184,836. Marks, E. C. R., (Akt.-Ges. f³r Tiefbohrtechnik und Maschinenbau vorm. Trauzl & Co.). April 18, 1921. Cylinders receiving liquid fuel; vaporizers, external.-Compressed air from a compressor 8 and liquid fuel are admitted by valves 6, 5 respectively to a mixing chamber 3, previous to admission to the cylinder, in which air alone is compressed, by a valve, all the valves being positively controlled in such away that the commencement and duration of opening may be varied in correspondence with the load and speed. Modifications are shown and described in which compressed air from the working cylinder is admitted with the fuel, before the compressed-air valve 6 opens, and in which one valve, opening simultaneously with the injection valve, controls both fuel and compressed air. The invention is also shown applied to two and four cylinder engines, in which one valve controls the admission of fuel and compressed air to the mixing- chamber for all cylinders.
Patent GB-744068-A (GB)
Title: Improved method and apparatus for producing foamed slag
Inventor: STUART JOHN CHARLES KEITH
IPC: C21B3/06
Filed: 1953-04-23
Abstract: 744,068. Foaming slag. DENMAN ENTERPRISES, Ltd. April 23, 1953, No. 11235/53. Class 22. Apparatus for foaming slag comprises a pit having a solid bottom surface which is moisture impervious and,has embedded in a part thereof a plurality of liquid outlets 16 which extend to the bottom surface, an inclined solid ramp 12 joined to the bottom surface adjacent the liquid outlets and having similar liquid outlets 23, means for supplying controlled amounts of foaming liquid under pressure to the outlets, an inclined end surface 13 joined to the opposite end of the bottom surface and means for introducing molten slag onto the inclined ramp 12, in such volume and from a height sufficient to move the slag in unidirectional flow across the bottom surface with at least some of the slag overflowing the opposite inclined end 13. The bottom surface is reinforced in that part containing the liquid outlets, and also in that portion are porous drain channels 20 connected to passages 21. Liquid to the outlets 16 and 23 comes from a valve-19-controlled main 18 through pipes which may also be individually controlled by valves.
Patent GB-986432-A (GB)
Title: Radio antenna system
Inventor: BERRY ROBERT MICHAEL
IPC: H01Q3/12
Filed: 1962-03-23
Abstract: 986,432. Aerials. STANDARD TELEPHONES & CABLES Ltd. March 23, 1962, No. 11247/62. Heading H4A. The invention which is described with reference to a V.O.R. ground beacon is concerned with the production of a rotating cardioid pattern by means of a dipole 9 rotating within a resonant cylindrical cavity 1 having twelve circumferentially arranged separately excited slot radiators 2. As shown, the slots 2 are each connected at two tapping points 4, 5 to a separate feeder 3 supplied from a common signal source (not shown) and at two corresponding points 7, 8 to separate " feeders " 6 which are joined together at a common point. The points 4, 5 and 7, 8 are selected to match the impedance of the slots 2 to the feeder 3 and each feeder 3, 6 has a length equal to an integral number of #/2 of the signal radiated by the dipole 9 so that the slots are effectively non- resonant so far as the cavity is concerned whilst being resonant so far as the feeder is concerned. The cavity is finely tuned by the removable part 12.
Patent GB-830105-A (GB)
Title: Improved galvanic magnesium anode
Inventor: NEWPORT JOHN JOSEPH
IPC: C22C23/00
Filed: 1958-04-09
Abstract: 830,105. Casting-processes. DOW CHEMICAL CO. April 9, 1958, No. 11270/58. Class 83 (1). Galvanic anodes are made from a magnesium alloy containing from 0.2 to 2% manganese and up to 1% other metallic materials, the alloy being cooled to a temperature between 450‹ and 350 ‹ C. at a rate of at least 65 C. per minute, in a fluid-cooled mould, removed from the mould and said temperature, and thereafter cooled at a rate either lower or higher than the rate employed in the initial cooling step.
Patent GB-987268-A (GB)
Title: Improvements in or relating to pulse forming circuits
IPC: H03K3/55
Filed: 1962-03-23
Abstract: 987,268. Thermionic valves. SPACE TECHNOLOGY LABORATORIES Inc. March 23, 1962 [April 20, 1961], No. 11277/62. Drawings to Specification. Heading H1D. [Also in Division H3] In a pulse generating circuit (see Division H3) the shield electrode of a conventional thyratron of the type 2D21 is used as the control electrode whilst the conventional control electrode is biased to 800V and used as the primary anode. The electrode which is normally the main anode is biased to 1200V and used as a secondary anode, secondary emission from this anode being collected by the primary anode. Fig. 2 (not shown) relates to the potential distribution in the tube.