baber/WOPTO huggingface dataset:
Patent GB-769674-A (GB)
Title: Processes for the control of solute segregation
IPC: C30B19/10
Filed: 1952-11-14
Abstract: 769,674. Treatment of materials by zone melting. WESTERN ELECTRIC CO., Inc. Nov. 14, 1952 [Nov. 16, 1951], No. 17944/55. Divided out of 769,673. Class 82(1) [Also in Groups XI and XXXVI] A method of treating a body of fusible material containing at least two minor ingredients to produce at least two regions in the body in each of which a different minor ingredient predominates comprises forming a molten zone in a part of the body without contacting the molten zone with an electrode, progressively melting the solid at at least one solid-liquid interface to cause the molten zone to expand in volume and then progressively freezing out solid at the said solid-liquid interface to cause the molten zone to contract in at least one direction, the volume of the molten zone being at all times less than the volume of the body. The method is particularly applicable to producing a desired distribution of conductivity-determining impurities in germanium or silicon to form PN and NPN fractions. In one example. an ingot of germanium is treated by the zone melting process of Specification 769,673 so as to have uniform concentrations A and B, of boron and antimony respectively with the antimony predominating so that the conductivity is N type. A block is sawn from the ingot. the surface layer of the block is melted to a depth of X 1 S (Fig. 2) and the layer is then allowed to freeze progressively in an outward direction. Since the distribution coefficient of boron is greater than 1 and that of antimony less than 1, boron predominates in the part X 1 X 2  of the oncemelted layer and antimony predominates in the part X 2 S of the layer thus forming an NPN transition region in the block. The conductivity-determining impurities may be added to the semi-conductor material by means of a pill which is added to or melted with the molten zone or by gas doping to produce the required transition regions. In a further example, a molten zone ee<SP>1</SP> (Fig. 4) is formed in a rod of germanium containing uniform concentrations A and B of antimony and gallium respectively, with the antimony predominating so that the conductivity is N type, and the zone length is decreased until the entire zone has refrozen. Since the distribution of gallium is greater than that of antimony, gallium predominates over the parts ed and e<SP>1</SP>d<SP>1</SP> and antimony over the part dd<SP>1</SP> thus forming an NPNPN transition region in the rod. An electric furnace (see Group XI) to melt the surfaces of the blocks is also described. Specifications 590,458, 592,303, 594,121 [all in Group III] and 700,231 also are referred to.
Patent GB-920206-A (GB)
Title: Lubrication
IPC: F16N7/34
Filed: 1959-05-26
Abstract: 920,206. Lubricators. AUTO RESEARCH CORPORATION. May 26, 1959 [May 27, 1958], No. 17976/59. Class 12 (3). [Also in Groups XXII and XXIII] A pressure and control unit for supplying air and lubricant or coolant liquid to a number of nozzle or spray fittings Z, FF and GG has an air receptacle B, a liquid receptacle C and a pipe line supplying pressurized air at F to the air receptacle B and then to the liquid receptacle C and also pipe lines supplying the air and liquid under pressure separately from outlets in the liquid receptacle to said nozzle fittings. The air receptacle B and liquid receptacle C are carried and connected by a head A having the air inlet F, an air outlet G and a liquid outlet H; the head A also has a pressure gauge J, a pressure regulator K, with a spring- pressed diaphragm controlled valve, and a solenoid control valve L. The liquid receptacle C has a filler plug M, and drain plugs D, E are provided for the receptacles B, C. Liquid is supplied to the receptacle C up to the filling line 161 leaving air space in a dome 129 (not shown), thereabove. Pressurized air enters the receptacle B, passes through a filter N, and along passages into the compressed-air dome 129 in the head A above the liquid receptacle from which the air forces the liquid in the receptacle C through a bore 150 to the outlet H and simultaneously escapes through the outlet G. By separate connections the air and liquid are supplied to the nozzle fittings Z, FF and GG by junctions HH and JJ. Concentric air and liquid lines may be provided. The air and liquid mixture may be so applied to chain gears or used in cutting or grinding operations.
Patent GB-1085000-A (GB)
Title: Interchangeable film magazine for camera heads of microfilm recorders
IPC: G03B19/04
Filed: 1965-04-29
Abstract: 1,085,000. Photographic apparatus. MIKROFILM G. m. b. H. and A. JACKNAU. April 29, 1965 [April 29, 1964], No. 18013/65. Heading G2A. An interchangeable film magazine for a microfilm camera comprises a housing 1, in which the film 10 is held against an exposure aperture 33 by spring-biased pressure rollers 15 and is moved by feedroller 24, and slides 8, 9 which can be moved to open a slot in the housing to allow exposure of the film to take place or to close the slot so that the magazine can be removed from the camera. The feedroller 24 extends outside the housing and is driven from the camera driving mechanism.
Patent GB-1517094-A (GB)
Title: Kites
IPC: A63H27/08
Filed: 1977-05-03
Abstract: 1517094 Kites T SCHOFIELD 3 May 1977 [3 May 1976 9 July 1976] 18039/76 and 28766/76 Heading A6S A kite comprises a sheeting 13, Fig. 3, spread by a longitudinal main spar 14, which may be in disconnectible sections, two lateral spars 16 and a bracing spar 15. As shown the lateral and bracing spars 16, 15 are made of wire, with central loops 23, 26 to receive the main spar, but alternatively the lateral spars may be aluminium. The main spar 14 may be made of glass fibre. The kite may be shaped to represent an aeroplane, or may bear upon the sheeting 13 the outline of an aeroplane. Two control strings 30, Fig. 4, are each separated to form a two-string bridle connected to a common point 31 on the main spar and to individual connecting points 32 on the lateral spar 16. In a configuration, the lateral spars 24, Fig. 5, do not extend inwards to join the main spar 14 and the bracing spar is joined by an apertured tubular connector 34 to the main spar and by sleeve connectors (35), Fig. 7 (not shown) to the mid-points of the lateral spars 16a, 16b, made of aluminium tube.
Patent GB-390134-A (GB)
Title: Improvements in devices for stopping the operation of circular knitting machines in the case of thread breakage or jamming of thread
IPC: D04B35/14
Filed: 1931-06-24
Abstract: 390,134. Knitting-machines. AKTIEBOLAGET PER PERSSONS V€FOCH STICKMASKIN, 22, Alstromergatan, Stockholm. June 24, 1931, No. 18251. Convention date, June 28, 1930. Void [Published under Sect. 91 of the Acts]. [Class 74 (ii).] A stop-motion for a circular machine operable upon thread breakage, or the occurrence of a knot or irregularity in the thread, comprises a pivoted dropper 12, spring urged to bring contacts 16, 20 into engagement to complete an electric circuit 21. An electromagnet 8 is energized to lift a countersunk peg 6 on a rotating member 4 into engagement with a notched disc 1 to actuate a brake or to stop the machine in any other manner. A dropper member 12 may be provided for each thread 18 fed to the needles.
Patent GB-754974-A (GB)
Title: A boring machine for mining coal, or for tunnelling in the earth
IPC: E21C27/22
Filed: 1954-06-22
Abstract: 754,974. Mineral-mining machines; earth-tunnelling machines. MOYNIHAN, T:, MOYNIHAN, T. C., and MOYNIHAN D. June 22, 1954, No. 18310/54. Classes 68(1) and 85. The boring means of a mineral-mining or earth-tunneling machine consists of two, or more, pick-carrying annular members 19, 19A, which are concentrically disposed in the same plane and are so geared to each other and to a central shaft that rotation of the shaft results in the rotation of adjacent members in opposite directions. The members 19, 19A rest against a circular back plate 17 mounted at the forward end of the supporting frame 10 of the machine and are spaced radially of the shaft and of each other by gear wheels 22, 23, which engage the toothed peripheries 20, 20A of the members to transmit the drive from the gear wheel 21 secured to the central shaft to the members 19, 19A. The gear wheels 22, 23 are rotably mounted on fixed spindles 18, 18A on the plate 17. The frame 10 carries the means 15, 15A, 16 for driving the central shaft and is adjustably supported from the wall of the bore by two sets of circumferentially-disposed, wheeled supporting structures 11, 12, 13 and is advanced by either a power-actuated, screwthreaded member 10A engaging with a fixed nut secured in and against axial movement with respect of the frame 10 or by a jack extending between the frame and a fixed abutment.
Patent GB-849297-A (GB)
Title: A device for retaining stacks of coins or other disc-like articles
IPC: G07D9/00
Filed: 1958-06-09
Abstract: 849,297. Coin handling devices. GAZZARD, R. J. A., and MEASURES, A. B. May 25, 1959 [June 9, 1958], No. 18318/58. Class 116 A device for stacking, and facilitating the handling, of coins and like discs comprises a base plate 3 with a plurality of support surfaces 4 supported thereabove, each support surface 4 having associated therewith triangularly arranged pins 6 and being shaped so that coins 5 located between the pins project beyond the support surface 4 at points between each pair of pins. As shown each plate 4 has concave edges and has five pins 6 arranged to form a pair of coin receiving triangles. Dimples 3a between the plates 4 facilitate the removal of coins which fall between the plates.
Patent GB-258044-A (GB)
Title: An improvement in or relating to means for straining tennis net cords
IPC: A63B61/02
Filed: 1925-07-18
Abstract: 258,044. Hirst, R. R., and Hirst, A. July 18, 1925. Wire strainers.-The end of the wire supporting a tennis net is secured to the winding drum a by being spliced and placed over a pin c which is situated in a recess b at one end of the drum. The Provisional Specification refers to Specification 223,056.
Patent GB-898505-A (GB)
Title: Improvements in or relating to getter arrangements
IPC: H01J29/94
Filed: 1959-05-29
Abstract: 898,505. Discharge apparatus. PHILIPS ELECTRICAL INDUSTRIES Ltd. May 29, 1959 [June 3, 1958], No. 18378/59. Class 39(1). A getter container 1 with parallel side walls 2, 3 and base 5 contains gettering material 4 the surface of which is perpendicular, at every point, to the desired direction of propagation of vapour at that point, the getter material being of a metal, alloy which retains its surface configuration on heating. The container is preferably in the form of circular or rectangular ring and the surface of the gettering material it contains may be concave, convex, or planar and sloping relative to the container axis and side walls, and the container may be so shaped that the base 5 lies parallel with the sloping surface of the gettering material. The gettering material comprises 50% barium aluminium alloy and 50% nickel. The nickel may be replaced either wholly or in part by a nickeltitanium compound.
Patent GB-963379-A (GB)
Title: Process for the stereospecific polymerisation of alpha-olefins
IPC: C08F10/00
Filed: 1962-05-14
Abstract: 963,379. Polymerization of alpha-olefines. MONTECATINI SOC. GENERALE PER L'INDUSTRIA MINERARIA E CHIMICA. May 14, 1962 [May 18, 1961], No. 18399/62. Heading C3P. Aliphatic alpha-mono-olefines are polymerized in the presence of stereo-specific catalysts prepared from metallorganic compounds of metals of Groups IIB or IIIB of the Periodic Table and transition metal halides of Group IV or V, a hydride or complex hydride of an alkali metal and a halogen containing compound of an element of Group IIIs, IV B  or V B , the molecular weight of the polymers obtained being regulated by the amount of hydride introduced. The olefine may be propylene or butene-1. The hydride may be NaH, LiH, LiAlH 4  (others are listed). The halide may be TiCl 3 , VCl 3  or TiCl 2 . The halogen compound may be SiCl 2 (CH 3 ) 2 , AlCl 3 , BCl 3 , PCl 5 , SbCl 5  (others, are listed). The metallorganic compound may be Al(C 2 H  5 ) 2 Cl or Al(C 2 H 5 ) 3 . The catalyst may be prepared from violet TiCl 3  and Al(C 2 H 5 ) 2 Cl in the presence of NaH and AlCl 3 . The polymer may be precipitated from the reaction mixture using methanol and acetone, and may be used to form articles, e.g. fibres or films.
Patent GB-863403-A (GB)
Title: Improvements in or relating to interphase transformers
IPC: H02M7/06
Filed: 1959-05-29
Abstract: 863,403. Rectifying; inductances. MASCHINENFABRIK OERLIKON. May 29, 1959 [June 6, 1958], No. 18440/59. Class 38 (2). In a rectifying system the zero points 0<SP>1</SP>, 0<SP>11</SP> and 0<SP>111</SP> (Fig. 1) of the transformer secondary windings 2, 3 and 4 are connected together through zig-zag connected chokes to suppress the higher harmonics. The choke arrangement may consist of three laminated cylindrical cores 11, 12 and 13 (Fig. 3) each having passing through it a pair of hollow conductors 14, 15 or 16 connected in opposition; one or more conductors of each pair having coolant flowing therethrough. The pairs of conductors may be concentric.
Patent GB-497140-A (GB)
Title: Improvements in and relating to the manufacture of ceramic material
IPC: C04B35/03
Filed: 1938-06-21
Abstract: The sintering temperature of magnesium oxide ceramics is reduced by the addition of from 1 to 15 per cent of nickel or cobalt oxide. This addition results in the formation of mixed crystals, but does not increase the dielectric loss factor above tgd =0,0005.  About 5 per cent of beryllium oxide may also be added.
Patent GB-1163240-A (GB)
Title: Three-Region Semiconductor Device
IPC: H02M7/5387
Filed: 1968-04-19
Abstract: 1,163,240. Semi-conductor devices. WESTINGHOUSE ELECTRIC CORP. 19 April, 1968 [25 April, 1967], No. 18533/68. Heading H1K. A three-region semi-conductor device comprises an N-type substrate 10 with N-type, P- type and N-type layers 16, 18, 22, respectively, deposited epitaxially thereon while the substrate is maintained at a constant elevated temperature. Gaseous etching of the substrate 10 prior to deposition of the first layer 16 is also carried out at the same temperature. For the Si transistor shown the preferred temperature is 1000-1200‹ C., HCl gas being used as the gaseous etchant. The layers 16, 18, 22 are deposited from a mixture of H 2 , a silicon halide such as SiCl 4  and a suitable dopant source such as arsine, phosphine or diborane. Between successive stages the chamber containing the substrate is flushed with dry H 2 . Preferred thicknesses and resistivities are specified for the substrate 10 and for the layers 16, 18, 22. An aperture is etched through the upper layer 22 to beyond the first junction 24 using an oxide mask. The aperture may have a complex peripheral outline to provide a long emitter-base junction edge. A collector electrode 34 of Mo, W or Ta is soldered to the substrate 10 using an Ag/Pb/Sb solder, and Al emitter and base electrodes 36, 38 are evaporated on to the layers 22, 18, respectively, and are alloyed thereto. A protective coating 40 is provided over the exposed junction edges, which are first prepared by sandblasting, etching and polishing. Alternative semi-conductor materials are SiC, Ge and III-V or II-VI compounds.
Patent GB-420423-A (GB)
Title: Improvements in and relating to gyratory toys
IPC: A63H1/22
Filed: 1934-06-22
Abstract: 420,423. Spinning sound producing and optical toys. PARKER, T. B., Mayfield Lodge, Ridley Road, Upper Warlingham, Surrey.-(Rouette, C.; 53, Wilhelmstrasse, Aachen, Germany) June 22, 1934, No. 18566. [Class 132 (iii)] A spinning toy comprises a stick having rotatably mounted on it a roller engaging with a flange on a disc. The toy, Fig. 1, comprises a stick c having an axial pin e on which turns a roller d engaging with a flange b stuck concentrically to a cardboard, wood or sheet metal disc a. A cord g is connected at one end to the disc a and at the other end to a wire ring h sliding loosely on the stick c. The stick c is held in the hand and a circular motion imparted to its upper end to give the effect of juggling with a plate on the stick, which may be held vertically or horizontally. The upper and /or lower surfaces of the disc a are divided into three equal differently coloured sectors, or provided with coloured figures. The flange b of the disc a may be made in the form of three tongues stamped out of the disc and bent downwards, Fig. 5. The disc a may be of circular, oval or cornered shape and may have a cross-section of triangular or circular segmental shape. The flange b of the disc may be of semicircular, semi-oval or angular cross-section, the roller d having a corresponding profile. The disc a may be provided with sound producing diaphragms or reeds or with parts pivoted to it which fly outwards under the action of centrifugal force.
Patent GB-486909-A (GB)
Title: Process of producing washing, emulsifying and dispersing agents
Filed: 1936-11-05
Abstract: Products stated to have dispersing properties are prepared by condensing glycidylcetylether with an alkali bisulphite or an alkali metal salt of an amino or hydroxybenzenesulphonic acid.  In an example, glycidylcetylether is heated with sodium bisulphite to form sodium 3-cetylether-2-hydroxypropane-1-sulphonate.  The use of sodium sulphanilate and sodium p-phenolsulphonate is mentioned.ALSO:Products stated to have wetting, washing, and dispersing properties are prepared by condensing glycidylcetylether with an alkalibisulphite or an alkali metal salt of an amino or hydroxy-benzenesulphonic acid. In an example, glycidylcetylether is heated with sodium bisulphite to form sodium-3-cetylether-2-hydroxypropane-1-sulphonate.  The use of sodium sulphanilate and sodium-p-phenolsulphonate is mentioned. Glycidylcetylether may be prepared by treating with alkalies the ether obtained from cetylalcohol and epichlorhydrin.
Patent GB-596977-A (GB)
Title: Improved cutting-off machine
IPC: B24B27/06
Filed: 1944-08-23
Abstract: 596,977. Severing by grinding. COMMUNICATIONS PATENTS, Ltd., and DUMBRILL, H. W. Aug. 23, 1944, No. 18666. Divided out of Complete Specification of 564,641. Drawings to Specification. [Class 60] A cutting-off machine comprises a table having a section fixed to a support against relative translational movement and a section adapted to be moved to and fro alongside the fixed section, and a thin abrasive disc or wheel mounted for rotation about an axis located beneath the upper surface of the table so that the disc or wheel projects or can be brought to project above said upper surface, whereby material carried by the movable section of the table can be brought into cutting engagement with the wheel or disc. The fixed section of the table is hingedly secured to the support ; an edge of the movable section of the table is adapted to pass closely alongside one side face of the wheel or disc ; the abrasive disc or wheel extends into a recess in an edge of the fixed section of the table ; the abrasive disc or wheel is vertically adjustable relatively to the upper surface of the table ; the table comprises gauging or like means for the material to be cut. The particular machine described is the same as that described in Specification 564,641 which is referred to.
Patent GB-767043-A (GB)
Title: Improvements relating to bomb doors for aircraft
Inventor: CHAPLIN HERBERT EUGENE
IPC: B64D1/04
Filed: 1954-06-25
Abstract: 767,043. Bomb doors for aircraft. FAIREY AVIATION CO., Ltd. June 23, 1955 [June 25, 1954], No. 18753/54. Class 4. [Also in Group XXI] A bomb bay in an aircraft has a pair of doors each of which opens solely by rotation about a fixed axis parallel with the fore and aft axis of the aircraft to a position in which it is completely inside the bomb bay. The fuselage 2 has a part circumferential closure 3 forming the top wall of the bomb bay, which is closed by doors 4, 5 each struck as a body of revolution about a common pivot 7 and mounted thereon by longitudinally spaced brackets 11. A bomb beam 24 carries pivots 22 for jacks 21 each connected to a door at a pivot 23 whereby the doors may be opened either together or separately. Rollers 17 housed within skirt panels 19 guide the doors and curved fairings (not shown) connect the closure 3 with the fuselage skin at each end of the bomb bay.
Patent GB-146894-A (GB)
Title: Improvements in motor cycles
IPC: B62M7/00
Filed: 1920-07-06
Abstract: 146,894. Hildebrand, H. April 4, 1919, [Convention date]. Motor-cycles; fuel containers; motors and dynamos, mounting.-A motor unit for attachment to a pedal cycle without structural alteration comprises an engine a secured to the cycle frame by a clip d and carrying the magneto b, to which the fuel tank c is connected by a hinge joint k, and is secured to the diagonal frame member by clips d'. The silencer f is placed under the magneto.
Patent GB-664458-A (GB)
Title: Improvements relating to reinforced structural members
Inventor: LEE DONOVAN HENRY
IPC: E04C5/12
Filed: 1949-07-18
Abstract: 664,458. Reinforced concrete; beams. McCALLS MACALLOY, Ltd. Nov. 12, 1949 [July 18, 1949], No. 18825/49. Class 20(iv) The rod or bar reinforcement for a concrete block a to be prestressed has a threaded extension c to which a temporary nut or collar e is secured, the shaft f of a jack for tensioning the rod being attached to the collar. As the rod is stretched a nut d is tightened up to bear against the end of the block. Cast iron or other materials weak in tension, e.g. in the form of beams or slabs may be similarly prestressed.
Patent GB-961016-A (GB)
Title: Extraction head for withdrawing a radioactive thread or wire
Inventor: MOURAIN MICHEIL
IPC: G21F5/005
Filed: 1963-05-13
Abstract: 961,016. Handling radio-active material. COMMISSARIAT A L'ENERGIE ATOMIQUE. May 13, 1963 [May 11, 1962], No. 18864/63. Heading B4Q. A device for handling a radio-active element in the form of a thread or wire, e.g. a thermocouple, and enabling the element to be withdrawn from a cell and deposited in a store, comprises a lead body 1 having a cavity 2 normally closed by a hinged cover 32. A tube 30 enables the wire or thread to be introduced into the cavity 2 from the outside through a hole 31. A passage 4 in the body 1 receives a rotatable tube 6 having slots 7, 8 at one end, this tube receiving a plunger 24 biased by a spring 20 so that a cross-pin 26 on the plunger normally occupies the position shown at one end of the slots. In use, the device is tilted so that it rests on the portion 47 of the base 44, the cover 32 is opened and one end of the wire or thread is inserted into the tube 30 and engaged in the slots 7, 8. The cover is closed and after tilting the device so that it rests on the base portion 45 the tube 6 is rotated by a handle 15 to wind up the wire or thread. The device is lifted by a ring 50 to a storage receptacle where the cover 32 is opened and the plunger 24 smartly depressed to eject the coiled-up thread or wire from the slots 7, 8.