baber/WOPTO huggingface dataset:
Patent GB-1470567-A (GB)
Title: Semiconductor devices
IPC: H01L33/08
Filed: 1974-05-01
Abstract: 1470567 Semi-conductor devices PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 1 May 1974 [4 May 1973] 19065/74 Heading H1K A semi-conductor zone 23 whose width first increases then decreases with increasing depth is formed by diffusing a dopant into a semiconductor layer 20 the chemical composition of which varies from the upper surface to the lower surface at which the layer 20 abuts a substrate 28. The variation of composition is such that the diffusion coefficient for the dopant forming zone 23 is higher adjacent the substrate 28 than at the upper surface of layer 20. Compositional variation of the layer 20 in the Si/Ge mixed system is referred to, but in the embodiments the substrate 28 is of semi-insulating InAs and the epitaxially deposited, Te-doped layer 28 comprises, measuring from the substrate, 5 Á of InAs, 25Á of InAs 1-x P x  where x increases gradually from 0 to 0À4, and 10 Á of InAs 0À6 P 0À4 . Zn is then diffused to form the zones 23, which constitute isolation walls surrounding islands 26. Further diffusion into the islands 26 enables as array of electroluminescent devices to be formed. Cd and Be, which, like Zn, diffuse faster in InAs than in InP, are mentioned as alternative dopants for the zones 23. In a modification the array is dimensioned in such a way that the lower, bulbous portions of the zones 23 merge together so that the islands 26 are entirely surrounded by the zones 23. In this case the layer 20 and substrate may be of the same conductivity type.
Patent GB-312524-A (GB)
Title: Improvements relating to sound boxes for gramophones and similar reproducing machines employing sound boxes
IPC: H04R7/04
Filed: 1928-07-02
Abstract: 312,524. Wright, A. F. J. July 2, 1928. Sound-boxes.-In a sound-box for gramophones and the like, a plate arranged at right angles to to the stylus bar is held against pivots on the casing by spring members forming part of a cover-plate protecting the outer face of the diaphragm. As shown, a cupped plate f secured to the casing l is slotted adjacent the stylus-bar a, leaving lugs o which form the holding-down springs for the plate b. The latter bears on two steel balls c are recessed into the casing, and the lugs o are formed with projections p bearing on the other face of the plate; or ball-pivots may be used on both sides of the plate. The cover-plate f may be formed wholly of metal, or of a moulded composition with a metal insert for the lugs o. Specification 290,469 is referred to.
Patent GB-1149372-A (GB)
Title: Improvements in terminal blocks for use in electrical circuits
Inventor: POWELL GORDON FRANCIS WELLINGT
IPC: H01R13/514
Filed: 1965-05-06
Abstract: 1,149,372. Two-part couplings; terminals; terminal blocks. MOLINS MACHINE CO. Ltd. 27 April, 1966 [6 May, 1965], No. 19168/65. Heading H2E. Insulating blocks 6 are slid on to a channelled base 1 to form a terminal block, and are grooved and/or slit 17 to hold contacts 7 between adjacent pairs and have interfitting projections 12 and recesses 13. Polycarbonate blocks 6 have dovetail lugs 14 to slide into a corresponding base channel and are held by metal end-blocks 8 having dovetail keys 9 clamped against the base by screws 10. The contacts 7 have soldering apertures 20 and may receive conventional springy brass socket contacts (Fig. 3, not shown). The vertical recesses 17 in the blocks 6 which accommodate the contacts 7 may extend beyond an indicatorstrip recess 15 to receive a test probe. Integral ribs 26 separate the contacts 7.
Patent GB-674848-A (GB)
Title: Improvements relating to the production of iron and steel or other metals
IPC: C21C5/34
Filed: 1948-07-16
Abstract: 674,848. Manufacture of iron and other metals. MATUSCHKA, B. Aug. 15, 1949 [July 16, 1948], No. 19182/48. Classes 72 and .82(i) A process for the production of steel, iron - or other metals or alloys comprises blowing air or the equivalent through the molten metal in an open furnace or convertor and supplying heat to it in the furnace by coreless electro-magnetic induction. The blast may be from the bottom, side or top and may consist of air or air and another gas such as oxygen, hydrogen, nitrogen, carbon monoxide or carbon dioxide, or a mixture of these. In one specific embodiment, the production of steel from pig iron, the charge is contained in a coreless induction furnace comprising a refractory pot A having a lining B. A 'high or low frequency primary winding C, comprising a pipe through which cooling fluid can be circulated, is built into the wall of the pot A and the blast enters the bottom of the furnace through the duct D. After blowing is completed, refining, deoxidation and/or carbonization are carried out in the same vessel. Specifications 368,780 and 416,545 and U.S. Specification 1,839,927 are referred to.
Patent GB-335264-A (GB)
Title: Improvements in or relating to collector shoe suspension for electric railway vehicles
IPC: B60L5/38
Filed: 1929-06-22
Abstract: 335,264. English Electric Co., Ltd., and Morris, F. June 22, 1929. Shoe collectors are carried by a cantilever 3 mounted on a vehicle axle 4 and guided to maintain its position. The cantilever is forked at 5 and has a projection 7 engaged between rollers 8 on the vehicle, a tongue 9 at the other end engaging a keep 10. The cantilever has beams 2 and a carrier 1 for a shoe, as described in Specification 335,263.
Patent GB-1160182-A (GB)
Title: Seat Adjuster Latch Construction
IPC: B60N2/07
Filed: 1968-04-24
Abstract: 1,160,182. Vehicle seats. ATWOOD VACUUM MACHINE CO. 24 April, 1968 [14 Nov., 1967], No. 19258/68. Heading A4J. A slide structure for vehicle seats comprises a channel shaped slide 12 movable with the seat, a fixed slide 11 having vertical teeth 15, and a pivoted latch 16 having a wall 23 with a window 24 in which a selected tooth 15 engages whilst the ends 25, 26 of the wall 23 abut neighbouring teeth. The latch 16 is pivoted at 17 to the seat slide 12 and the wall 23, when engaged with the teeth, is disposed in a horizontal plane below the pivot 17. The latch is held in engaged position by a coiled spring 19. The two latches of the two structures of a seat are connected for simultaneous operation by a bent wire passed through holes 21 in the latches. The seat slide 12 is supported by balls and/or rollers on the fixed slide 11.
Patent GB-1395760-A (GB)
Title: Cleaning compositions
IPC: C11D3/39
Filed: 1972-04-26
Abstract: 1395760 Detergents containing bleach COLGATE-PALMOLIVE CO 26 April 1972 [28 April 1971] 19380/72 Heading C5D [Also in Divisions C2 and D1] A bleaching composition for textiles, e.g. cotton comprises a peroxygen compound and an N-benzoyl-2-methylimidazole which may be chloro substituted in the benzoyl group, as activator therefor. The composition may contain other additives, e.g. detergents and specific peroxy compounds and be formulated as described in Specification 1,395,758. Trisodium nitriloacetate, tetrasodium EDTA and sodium citrate may also be present.
Patent GB-220787-A (GB)
Title: Improved permanent hard tennis court markings
IPC: A63C19/06
Filed: 1923-07-28
Abstract: 220,787. Allfree, B. R., and Moore, P. J. July 28, 1923. Paving blocks, special shapes of.-A marking for hard tennis courts comprises a number of blocks A of porcelain &c. connected together by a wire B and let into a groove in the surface of the court. Depending portions a<4> assist the grip on the court and the edges of the blocks are bevelled as at a<5>, to prevent chipping. Transverse grooves a<1> and recesses a<2> accommodate the wire B in the end blocks of the chain.
Patent GB-638853-A (GB)
Title: New or improved means for the ventilation of vehicles
IPC: B61D27/00
Filed: 1948-07-20
Abstract: 638,853. Ventilators. HOPFINGER, K. B. July 20, 1948, No. 19416. [Class 137] A ventilating unit for mounting on vehicles comprises a domed casing b, with front and rear inlet and outlet openings f, g, and inlet and extractor openings h, m in the base of the casing which are separated by transverse and longitudinal partitions r, s. The inlet in the front of the casing may comprise slots pierced in the metal or grilles f. When the vehicle is in motion some of the air passes into the vehicle through the opening h, and the rest is diverted by the transverse partition r to the space between partitions s and the wall of the casing, causing air to be extracted from the vehicle by ejector action. The openings h, m have upstanding baffles k, p welded to the rims j, n, outwardly flared skirts l, q being attached to the upper part of the baffles, to prevent entry of rain to the vehicle. The partitions s may be rearward extensions of the partition r, or may also extend to the front of the partition to which they would then be welded, and they are arranged parallel to the inclined outer walls of the casing. A compressible rubber bead t on the upper edge seats against the casing. Apertures u, v permit drainage of water, apertures w prevent the accumulation of water within the partitions. The apertures in the roof of the vehicle, in alignment with openings hand m, may be provided with gauze or fixed or movable louvres for diffusing or stopping the air stream.
Patent GB-294206-A (GB)
Title: Improvements in or relating to wire spiralling machines
IPC: B65H59/04
Filed: 1928-07-05
Abstract: 294,206. General Electric Co., Ltd., (Assigness of Patent-Treuhand Ges. f³r Elektrische Gl³hlampen). July 20, 1927, [Convention date]. Energy-absorbing elements.-In winding wire 16 on a core 18, e.g. for use in electric lamps, the reel 13 is provided with a flange 19 braked by a fixed electromagnet 20; other braking devices may be, a fixed spring pressing on the edge of the flange, or a jet of air impinging on a vane wheel on the reel end, or by a permanent magnet. Specifications 11917/89, 18260/04, [both in Class 120, Spinning], and 193,063, [Class 120 (ii), Spinning, twisting, &c.], are referred to.
Patent GB-1021391-A (GB)
Title: Surface active compositions
IPC: C11D1/72
Filed: 1963-05-16
Abstract: Surface active compositions comprise by weight (i) 75-90% of an alkali soluble reaction product of a polyether of formula R(CH2CH2O)xH wherein R is a C10-C15 alkoxy group or a phenoxy group containing one or more C4-C10 alkyl substituents, x or the number average of x is 5-25 and a phosphorylating agent which replaces the terminal OH group by primary phosphate groups and (ii) 25-10% of an alkyl terminated surfactant of formula R1(CH2CH2O)zR2 wherein R1 = C10-C15 alkoxy group or a phenoxy group containing one or more C4-C10 alkyl groups, R2 is a C1-C8 alkyl group and z o the number average of z is 5-25.  Preferably R and R1 each represent a t.-octylphenoxy group and R2 is a methyl group.  The compositions are prepared by (a) blending the prepared constituents or (b) partially alkylating the polyether of (i) above and then phosphorylating the residual polyether having end hydroxy groups. Phosphorylation takes place at 80 DEG  to 110 DEG  C. using 1 t 2 moles of polyphosphoric acid per mole of surfactant or 1 to 2 moles per hydroxy group present in the mixture when method (b) is used. Discoloration of the reaction product may be prevented by presence of hydrogen peroxide or hydrazine hydrate in the reaction mixture. The above compositions may be combined with 88-99% by weight of an alkaline substance to provide water-soluble cleaning compositions.  Specified alkaline substances are caustic soda, sodium metasilicate, soda ash, trisodium phosphate, sodium polyphosphate, sodium orthosilicate, tetrapotassium pyrophosphate and tetrasodium pyrophosphate.ALSO:Surface-active compositions comprise by weight (i) 75-90% of an alkali soluble reaction product of a polyether of formula <FORM:1021391/C3/1> wherein R is a C10-C15 alkoxy group or a phenoxy group containing one or more C4-C10 alkyl substituents, x or the number average of x is 5 to 25 and a phosphorylating agent which replaces the terminal -OH group by primary phosphate groups and (ii) 25-10% of an alkyl terminated surfactant of formula R1(CH2CH2O)zR2 wherein R1 is a C10-C15 alkoxy group or a phenoxy group containing one or more C4-C10 alkyl groups; R2 is a C1-C8 alkyl group and z or the number average of z is 5 to 25.  Preferably R and R1 each represent a t-octylphenoxy group and R2 is a methyl group. The compositions are prepared by partially alkylating the polyethers of (1) above and then phosphorylating the residual polyether having end hydroxy group. Phosphorylation takes place at 80 DEG  to 110 DEG  C. using 1 to 2 moles of polyphosphoric acid per mole of free hydroxy containing polyether. Discolouration of the reaction product may be prevented by adding hydrogen peroxide or hydrazine hydrate to the reaction mixture. Many examples are given.
Patent GB-281200-A (GB)
Title: Improvements in and relating to spindle apparatus for spinning and like machines
IPC: D01H1/06
Filed: 1927-07-23
Abstract: 281,200. Hartley, E. July 23, 1927. Spindle apparatus.- A split screwed collar 17 is adjustably mounted on a cap 12 and carries a ring 18 on which is mounted a traveller 19. The collar is adjusted so that the yarn passes from the traveller clear of the bottom of the cap or so that it engages it to any desired extent thereby enabling a traveller of constant weight to be used.
Patent GB-687214-A (GB)
Title: Process for preparing the alcohol 1-phenyl-2-amino-1, 3-propanediol
Filed: 1950-08-04
Abstract: 1 - Phenyl - 2 - amino - 1 : 3 - propanediol is obtained by treating an ester of phenylserine, preferably the ethyl ester, by a method known to be capable of reducing the carbalkoxy group to carbinol, said treatment being effected in solution in an organic solvent.  The reduction may be effected with lithium aluminium hydride in ethyl or butyl ether.  As starting-material there may be used an ester of the threo-diastereoisomer of phenylserine.
Patent GB-147653-A (GB)
Title: Improvements in or relating to pumping plants
IPC: F04B53/10
Filed: 1920-07-08
Abstract: 147,653. Hue, R., Hue, G., and Loubet, P. Sept. 21, 1917, [Convention date]. Void [Published under Sect. 91 of the Act]. Wells.- In a well, a tube 4 with a closed lower end and lateral perforations 5 is sunk below the water stratum 3 and is surrounded by concentric perforated straining sleeves 7, 8 connected to the tube by a stuffing-box 6. The outer sleeve 7 has smaller perforations than the inner sleeve and the lower end of the strainer is closed. Washed sand is packed round the tube at 12 and 14, and charcoal filtering-layers 10, 11, 13 are preferably provided. Earth is filled in around the tube at 15. The tube 4 has a non-return valve 2 and is connected to a pump.
Patent GB-685578-A (GB)
Title: Improvements in or relating to machines for use in the manufacture of shoes
IPC: D05B15/00
Filed: 1950-08-05
Abstract: 685,578. Sewing-machines. BRITISH UNITED SHOE MACHINERY CO., Ltd. (United Shoe Machinery Corporation). Aug. 3, 1951 [Aug. 5, 1950], No. 19626/50. Class 112. A machine for sewing together a shoe-upper 2, Fig. 5, and a sock-lining 6 attached to the inner face of a platform sole 4 with a rabbeted edge exposing the margin of the sock-lining has a slotted gauge 14 engaging the rabbeted edge of the sole and supporting the margin of the sock member, the arrangement being such that the needle 28 passes through the members 2, 6 and emerges into the rabbet close to the edge of the sole 4. In the form shown, the shoe has a platform cover 8 attached at the same time, and the rabbet in the sole edge accommodates the turned-down edges of the three parts 6, 2, 8 in the finished shoe. Means for feeding the cover strip 8, for lifting the presser-foot 22, and for releasing the thread tension are described below. Work-holding; feed.-The parts 8,2, 6 being sewn are clamped between a presser-foot 22 and the upper surface of the rabbet-gauge 14, which is carried by a plate 14a, Fig. 1, sliding on a fixed support 18 under the control of a treadlerod 48 and spring 46, acting on a three-armed lever 40, the forward movement of the gauge being limited by a stop-screw 50 carried by the lever. The presser-foot 22 is mounted on a lever 24 and carries a slotted guide 52 for the cover strip 8. To avoid tension in the strip 8 owing to friction in the guide, it is fed by means comprising spring teeth 54, 56 on plates secured respectively to the lever 24 and a fixed bracket 58; the teeth 56 feed the strip down relatively to the foot 22 each time the latter is raised, and the teeth 54 carry the strip down with the foot on its descent. The strip passes between the body of the presser-foot and a lug 60 formed on it parallel to its heel; this lug serves to clamp the shoe-upper and sock-lining in advance of the point of application of the cover strip. The presser-lever 24 is lifted at the end of an operation by a treadle-rod 86 connected to an arm 78 which first actuates a member 72 to disengage locking pawls 74 and then engages a stirrup 88 attached to the lever 24; the treadlerod is returned by a spring 90, and the member 72 is connected to a spring-controlled lever 70 on the fulcrum of the presser-lever. Threads, controlling otherwise than in stitchforming-The tension device 68 controlling the thread can be released by a hand lever 94, which is also actuated automatically when the presser-bar is lifted by a lever 104 linked to the treadle-rod 86 and engaging a cam surface on the hand lever. Stitch-forming devices similar to those described in Specification 7793/92, [Class 112], are provided, except that the thread-lyter 36 is clamped to a slotted arm fixed to the lever 62 instead of being carried on an extension of the latter. Specifications 115,032 [Class 112], and 684,636 are referred to.
Patent GB-905152-A (GB)
Title: Improvements in or relating to pumps
IPC: F04D15/00
Filed: 1961-05-31
Abstract: 905,152. Washing-machines. GENERAL MOTOR CORPORATION. May 31, 1961 [June 15, 1960], No. 19638/61. Class 138 (2). [Also in Group XXVI] A pump has a liquid inlet and an air inlet leading to the eye of an impeller in a pump chamber. After spin-drying in a washing- machine, water is removed from a water container by a pump 40. The water inlet 42 is connected by a conduit to the base of the water container to provide a gravity feed to the pump. The base 58 of the pump chamber 60 is of plastic material and has the water inlet 42 and an air inlet 52 integral therewith. The impeller 66 is mounted on a shaft 32 of a two-speed reversible motor, which also drives a reciprocating agitator and the spin dryer, and water is directed to one or other side of a vane 70 in the outlet 46. A seal 68 prevents water leaking from the chamber 60 and the pump is supported by columns 71 beneath the motor. The air inlet 52 is connected by a pipe to the inside of the water container, the pipe extending above the highest level of the water. At low speed, the pressure at the eye of the impeller is near atmospheric and there is little intake of air. At high speed, the pressure is kept near atmospheric by the inflow of air and this reduces the load on the motor.
Patent GB-1306099-A (GB)
IPC: G09G5/36
Filed: 1970-04-24
Abstract: 1306099 Energy sensing probe INTERNATIONAL BUSINESS MACHINES CORP 24 April 1970 [8 May 1969] 19725/70 Headings G1A and G1N An energy sensing probe 20, Fig. 1, for sensing energy present in or in the region of a flat or slightly curved probe locating surface 10 comprises a barrel 70, a sensing device 22, and a carrier 80 in which the sensing device is fixedly mounted, the carrier being mounted at one end of the barrel and having a partially spherical surface on which it can roll within the barrel to permit limited angular displacement in any direction, the carrier projecting beyond the barrel end and terminating in an abutment surface by which it may achieve a unique operating attitude. The co-ordinates of position at which the probe is applied to the screen is determined by induction in a pair of tuned transducers from alternating currents of different frequencies in two pairs of wires 13, 14 along opposite edges of the screens. The circuitry is mountedwithin the probe barrel and includes a micro-switch actuated by the plane contact pressure. The energy sensing transducer (not shown) may be capacitative, inductive, or electro-optical.
Patent GB-483366-A (GB)
Title: Improvements in and relating to colour photography and colour cinematography
IPC: G03C7/28
Filed: 1936-07-16
Abstract: 483,366. Colour photography. GASPAR, B. July 16, 1936, No. 19781. Convention date, July 16, 1935. Drawings to Specification. [Class 98 (ii)] In a process of colour photography images are produced on one of a pair of materials and copied onto the second material, the materials consisting of an upper silver halide emulsion layer which is colourless and blue-sensitive, an intermediate layer which is coloured yellow and sensitized to red or green and a lower layer coloured in the colour complementary to the sensitivity of the overlying layer and sensitive for green or red, the sensitivity of the lower layers being interchanged in the two materials. The upper layer is coloured after development of the silver image in the colour complementary to the sensitivity of the base layer. The images may be produced by dyedestruction processes at the image or non- image parts. The upper layer may be coloured by chemical or dye-toning, by differential hardening and dyeing, or from dyestuff components present in the layer. Examples are given of various methods of procedure, in all cases exposure being made on one material and the images copied on the second material. Suitable dyes for colouring the layers are Metanil Yellow, Diamine Fast Pink, and Diarnine Pure Blue. Red sensitizing may be effected with ethyl-violet and green with thioflavine. As dyestuff destroying baths, a mixture of thiocarbamide, sulphuric acid, and hydroquinone or of potassium bromate, sodium chlorate, and hydrochloric acid may be used. The image in the upper layer may be bleached with potassium ferricyanide and potassium iodide and dyed with Vivage Blue-Green or the leuco compound of tetrabromindigo incorporated in the layer which is then subsequently treated with potassium bichromate and sulphuric acid..Specifications 395,718, 428,158, 478,735, and 483,463, are referred to.