baber/WOPTO huggingface dataset:
Patent GB-558835-A (GB)
Title: Improvements in and relating to dynamo-electric machines
IPC: H02K1/12
Filed: 1942-09-15
Abstract: 558,835. Dynamo-electric machines. BRITISH THOMSON-HOUSTON CO., Ltd. (General Electric Co.). Sept. 15, 1942, No. 13013. [Class 35] To reduce field distortion and core losses resulting from armature reaction in a dynamo electric machine, the core providing the poles of the machine is formed of ferromagnetic material, such as described in Specification 475,717, having a grain structure and crystalline arrangement such that the reluctance of the material is different in different directions. The material is so arranged in the core that its magnetic orientation in the direction of the main load excitation component of magnet flux is greater than in the direction of armature reaction in quadrature with the main excitation flux. Preferably the magnetic orientation is a maximum in the direction of the main excitation flux; thus in a salient pole D.C. machine the poles are formed of laminated material having maximum magnetic orientation in the direction of the radial axis of the pole and minimum orientation in the transverse direction. Fig. 1 shows an armature reaction excited generator comprising a rotatable armature having a commutator 10 and excited by a fixed split two-pole field system comprising pole pieces 11- 14 connected by a laminated core portion 15. The main excitation of the machine is obtained by armature reaction, in the direction of the arrow 24, by connecting together the primary brushes 16, 17, the connection being effected through windings 18-21 on the poles, these windings assisting the armature reaction flux. Current is taken from the machine from secondary brushes 22, 23 arranged at right-angles to the primary brushes, producing a secondary component of armature reaction in the direction of the arrow 25. To control the load characteristics of the machine, separately excited windings 26-29 on the pole-pieces are arranged to produce a flux opposing that of the secondary armature reaction, the sensitivity of the control being increased by providing, in series with the secondary brushes 22, compensating windings 31-34 which carry the load current and produce a flux opposing the secondary armature flux. Commutation along the secondary axis of the machine is improved by windings 39 which also carry the load current. -The main load excitation component of flux along the primary commutation axis of the machine is large compared with the control component of excitation and the magnetic orientation of the material of the core 15 is, therefore, arranged to be greatest in the direction of that axis.
Patent GB-1443090-A (GB)
Title: Silicon brass resistant to partin corrosion-
IPC: C22C9/04
Filed: 1974-03-25
Abstract: 1443090 Silicon brass ANACONDA CO 25 March 1974 13180/74 Heading C7A A silicon brass which is resistant to parting corrosion comprises:- the balance being Cu; has Zn and Si contents sufficient to produce a micro-structure consisting  of alpha + zeta phases; and is rapidly cooled to room temperature from 500‹-760 C.
Patent GB-131977-A (GB)
IPC: F42B12/44
Abstract: 131,977. Chanard, A. June 14, 1917, [Convention date]. Drawings to Specification. Thermo-aluminic mixtures.-The Specification describes a combustible material, for use in an incendiary bomb, comprising oxide of iron, aluminium, potassium nitrate, sulphur, potassium chlorate, and lime in specified proportions.
Patent GB-132772-A (GB)
IPC: B62L5/00
Abstract: 132,772. Touchais, P., and Wahl, C. Sept. 14,1918, [Convention date]. Brake mechanism. - On back-pedalling, the chain sags sufficiently to engage teeth on a pivoted segment 2, which is thereupon swung around its pivot a into the dotted-line position. A bifurcated lever 6, Fig. 3, is pivoted on the segment at u, and is also connected to a forked link 7, so that in the dotted-line position of the segment 2 the points a, b, c, d become a, b'; c', d, the juncture of the levers 6, 7 thereby clamping the chain on to the teeth of the segment. Any subsequent movement of the chain then causes the segment 2 to slide bodily in the slot of a pivoted link 1, thereby pulling forward a connecting-rod 5 against the action of a spring 10. This movement of the connecting-rod rotates a spindle 18, which, by means of a bell-crank lever mounted on its lower extremity, actuates the brake blocks 13 through the levers 11, 12. When the back-pedalling pressure has been removed, the parts are restored to the inoperative position by means of the spring 10.
Patent GB-166192-A (GB)
Title: Improvements in or relating to apparatus for use in splicing or assembling cables
IPC: D07B7/16
Filed: 1918-08-16
Abstract: 166,192. Pothier, C. Aug. 16, 1918. Jointing by stamping.-Hand-operated apparatus for compressing oval metallic sockets, for splicing or assembling wire rope and like cables, comprises two pairs of screw-operated detachable dies, one pair compressing the ends E, Fig. 6, of the socket into annular form round the cable parts, laid parallel, and the other pair operating upon the intermediate part of the socket, depressing the central portion A and forming lateral swellings G. In the apparatus shown in Fig. 4, a vertical screw 19, operated by a tommy or by attached arms, carries a die 33 co-operating with two lateral dies, these dies being detachable and having grooves to accommodate the cable parts and recesses to shape the ends of the socket, the upper die also having a central recess to clear the intermediate part of the socket. While the socket is still clamped between the die 33 and its counterparts, the intermediate part of the socket is shaped by lateral dies 27, 28 on rectangular blocks 25, 26 guided in corresponding recesses. These blocks are closed together by means of screw-and-nut mechanism 39, 40, against the opening action of a spring 44. The nut 40 may be rotated by means of a tommy-head 41 or an attached crank-handle. The spring 44 may be retained in position by a screw plug 46 or by a pin.
Patent GB-133900-A (GB)
IPC: B23K35/36
Filed: 1919-01-10
Abstract: 133,900. Saracchi, A. Jan. 10, 1919, [Convention date]. No Patent granted (Sealing fee not paid). Soldering.-A solder composition consists of lead, tin sulphide, and lead acetate, preferably with proportions of 98 parts lead, 1 part tin sulphide and 1 part lead acetate. The lead is melted and the tin sulphide and lead acetate then added.
Patent GB-128064-A (GB)
Title: Improved Method of and Means for Removing Water from Peat and similar substances.
Inventor: BOSCH ABRAHAM TEN
IPC: C10F5/00
Filed: 1918-08-19
Abstract: 128,064. Ten Bosch, A. July 3, 1918, [Convention date]. Drawings to Specification. Peat, preparing.-Peat &c., placed in high towers so that it is compressed by its own weight, is treated first with hot water and afterwards with steam to reduce the water-content.
Patent GB-1404739-A (GB)
Title: Capacitor-diode voltage multipliers
IPC: H02M7/10
Filed: 1974-03-27
Abstract: 1404739 Semi-conductor devices; printed circuits PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 27 March 1974 13557/74 Addition to 1368226 Headings H1K and H1R [Also in Division H2] In a capacitor-diode voltage multiplier as claimed in Specification 1,368,226, the capacitors are formed by deposition of electrodes 33, 34, 37, 39 on coplanar plates 31, 32 of ceramic dielectric, the diodes being located in one or more blocks 25 ... 29 occupying the space between the facing edges of the two plates 31, 32. The invention is applicable to a voltage tripler for supplying EHT for the cathode-ray tube of a TV receiver from line flyback pulses. Each diode 22 (Fig. 2) may have its leads soldered or welded to conducting rods 23 having faces lying flush with a block 24 of epoxy resin. Alternatively, as in Fig. 6 (not shown) five diodes are wired in series and connected to tinned terminal pads arranged on the surface of a single elongated resin block. The diodecontaining blocks 25 ... 29 may be bonded to the edges of barium titanate plates 31, 32, connections being effected by leads 41 ... 46. Fig. 4, shows an arrangement in which a single block 61 containing the series arrangement of diodes is bonded to plates 31<SP>1</SP>, 32<SP>1</SP>, the capacitor electrodes and diode connections 33<SP>1</SP> ... 45<SP>1</SP> then being formed by photo-lithographic, vacuum deposition or silk screening. A current limiting resistor (Fig. 7, not shown) may be deposited on an extension of plate 32<SP>1</SP>.
Patent GB-1042824-A (GB)
Title: Radar system
IPC: G01S13/58
Filed: 1963-04-05
Abstract: 1,042,824. Pulse radar. CANADIAN PATENTS & DEVELOPMENTS Ltd. Ltd. April 5, 1963 [Oct. 1, 1962], No. 13563/63. Heading H4D. In a radar system of the kind generally described in Specification 1,042,822, difficulty may be experienced when the projectile has a low-angle trajectory or when fading or interference adversely affect echo display: in these cases points CML and CMU, corresponding to the mean positions on the type B display of the echo trains corresponding to the lower and upper radar beams respectively, may not be available. In the present invention the pair of points utilized can be chosen from the following seven: the intersections of the trajectory by the upper and lower edges of the upper and lower beams, points CML, CMU and the midpoint between the echo trains from the two beams; and the computer calculating the range and bearing of a target point on the working plane includes switches adapted to modify it in accordance with the particular combination of the two points selected, Figs. 13, 14.
Patent GB-130806-A (GB)
Title: Improvements in or relating to Machines for Cutting Sheet Metal.
Inventor: GRAY CHARLES BAXTER
IPC: B23D15/06
Filed: 1918-08-22
Abstract: 130,806. Gray, C. B. Aug. 22, 1918. Shearing; shear-blades; metal-sheet feeds. - Machines for slot-cutting metal sheets, of the kind in which the sheet is fed forwards by rollers and cut along a line, which may be curved, by successive actions of a reciprocating shear blade, are so constructed that the cutting is effected by a lower cutting-member comprising cutting-edges formed in one or more bars mounted on a hard bar supported in a detachable frame member such as a chair E, which is bolted to the main machine and formed of hard metal and is finished off by machining separately from the main frame. The lower feed-roller is mounted in the chair E and takes part of the shearing-stress, and it may be arranged to act as one of the cutting- edges. Slots or passages are provided in the knife-supporting bar, the chair E, and the main machine frame, for elimination of the metal cuttings. As shown, the work is fed by rollers A, B, Fig. 1, the lower of which is mounted in the chair E secured by bolts E<2> to the main frame- The reciprocating upper cutter A<2> coacts with three edges formed respectively by the side of the roller B, the end of a cutter-bar D, and side of a cutter-bar D'; or, in place of the bars D, D<1>, a single bar with an L-shaped cutting-edge may be employed; or, in a further modification, the three cutting-edges may be formed in a single bar as three sides of a rectangular slot in the bar, the under feed-roller, in this case, serving to support the sheet metal, but not as a cutting-edge. The cutting-bars D, D<1> are supported on a hard bar E‹ which is formed with a slot E<10> for the cuttings to pass through, and, in setting the machine, screws E<12>, E<13> are operated to aline this slot with a slot E<8> in the chair E, the screw E<13> acting on a bevelled edge of the bar E<9>. The knifebars are then adjusted in position to coact with the knife A<2> and are clamped securely in this position by means of screws D<3>, D<4> and clamping- plates D<2>. The chair E is formed with a slot E<7> which permits the bed for receiving the bar E<9> to ba readily machined.
Patent GB-738525-A (GB)
Title: Improvements in or relating to model railway vehicles
IPC: A63H19/22
Filed: 1953-05-15
Abstract: 738,525. Toys. PRITCHARD, S. C. Aug. 10, 1954 [May 15; 1953], No. 13702/53. Class 132(3). In a model railway vehicle, flexible synthetic resin is moulded to form leaf springs integral with an axle box or part of the vehicle frame, the moulded spring being free to flex between its ends under pressure applied to it by the axle box. As shown, leaf spring 1 and axle box 2 are moulded integrally, e.g. from polythene, the axle box having front and rear flanges 4. 5 and a hole 6 for a metal bearing 7. Axle box guides 8, which fit between flanges 4, 5, are formed in frame members 9 depending at opposite ends of a metal frame 10 adapted to fit beneath a truck body. The axle box is fitted to the frame by passing the flanges 5 through the space between the guides 8 with the box at right angles to its usual position and then turning the axle box until it is in position with the flanges 4, 5 embracing guides 8.
Patent GB-1167286-A (GB)
Title: Gyroscope
IPC: G01C19/24
Filed: 1968-03-21
Abstract: 1,167,286. Gyroscopic apparatus. GENERAL MOTORS CORP. March 21, 1968 [April 10, 1967], No.13717/68. Heading G1C. A gyroscope includes a float assembly 10 containing a rotor 16 for rotation about a spin axis 5 by means of electric hysterisis motors 18, 20 the assembly 10 being mounted in a casing (not shown) containing a flotation fluid and being provided with transformer secondary windings 98, 128 at opposite ends of a longitudinal axis of the assembly, the windings 98, 128 co-operating with adjacent transformer primary windings 74, 122 located in cup-shaped end housings 12, 14, to locate the float assembly 10 electro-magnetically and to supply the electric motors 18, 20. The recesses in the end housings 12, 14 contain ferrite polepieces 70, 120 each having an annular recess to accomodate the respective primary transformer windings 74 or 122. Recesses in the ends of the assembly 10 also contain ferrite polepieces 96, 126 accomodating the secondary windings 98, 128. Current from the secondary windings is led by way of insulated conductive strips 114, 134 and arcuate strips 116, 136 to supply the motors 18, 20 through resilient contacts as 118, 138, 140 which are arranged so that electrical contact to the motors is automatically made when the float assembly 10, which comprises two cup-shaped halves 24, 26 is assembled together. Magnetic interaction between the transformer primary and secondary windings provides axial location of the assembly 10, and disc like pole tips, as 80, 106 are provided at each of the opposing faces of the polepieces 70, 96 and 120, 126 these having a plurality of concentric rings to define flux concentration paths between the opposed pins of tips to resist any radial displacement of the float assembly 10 relative to the end housings 12, 14.
Patent GB-986342-A (GB)
Title: Improvements in or relating to hose pipes
Inventor: SHARP THOMAS JOHN
IPC: F16L11/08
Filed: 1961-04-17
Abstract: 986,342. Flexible hoses. BTR INDUSTRIES Ltd. March 14, 1962 [April 17, 1961], No. 13762/61. Heading F2P. [Also in Division B5] A hose has an inner, fluid-impervious lining, an outer or outermost layer comprising a thermosetting mixture of polyvinyl chloride, or a copolymer thereof with other vinyl material, with an elastomeric material, e.g. polychloroprene, and an intermediate layer of unimpregnated mineral fibres. The proportions of ingredients used in the outer layer are preferably P.V.C.: polychloroprene = 2 : 1, but may be 2À5-10 : 10 or 1-100 : 10. The layer may include a flame resisting or retarding plasticizer such as tri-xylenyl phosphate, chlorinated diphenyl, or a chlorinated wax, and may also include a nitrile rubber, a filler such as magnesia, and minor quantities of vulcanizing agents for the polychloroprene, polythene, and sodium laurate. The P.V.C. may be copolymerized with vinylidene chloride or vinyl acetate. The layer may be extruded on to or wrapped around, the hose. In an example the hose comprises an inner tube of nitrile rubber or polychloroprene, a layer of cotton or rayon braid or scrim, a layer of nitrile rubber or polychloroprene, a reinforcing braid of wire, or several such layers, a layer of glass fibre mat or bath, which may be between but is preferably outside the braided wire layers and is preferably applied as a strip wrapped helically or longitudinally, and the outer layer as above. The glass fibre layer may be replaced by one of plain or aluminiumized asbestos fibres or a matt or fabric of silica fibres, and the wire braid by braided material of natural or synthetic fibres or by such fibres wrapped with plain or rubberized fabric. Specification 904,638 is referred to.
Patent GB-1517495-A (GB)
Title: Disposable injection syringe
IPC: A61M5/24
Filed: 1977-04-01
Abstract: The single-use injection syringe comprises a liquid container (11) having a needle cap (14) for attachment of an injection needle (12). The container (11) holds the substance to be injected between a piston and a tearable sealing member (72), and the needle cap (14) houses a space (78) in which the sealing member (72) can expand and be torn. The space inside the needle cap (14) is dimensioned so that the piston can move past the torn sealing member (72) essentially over the entire path up to the end of the space (78) after tearing of the sealing member (72). Due to this design it is possible for the piston to eject virtually the complete amount of liquid present in the liquid container (11). <IMAGE>
Patent GB-585936-A (GB)
Title: An improved electrical device for effecting the multiplication or division of independent quantities
IPC: G06G7/24
Filed: 1944-07-19
Abstract: 585,936. Power meters ; thermionic valve ammeters and voltmeters. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., SHISHINI, M. E., and SAID, M. A. H. E. July 19, 1944, No. 13855. [Class 37] [Also in Group XIX] Multiplication or division of independent quantities is effected by deriving electrical quantities therefrom proportional to the logarithms of the quantities, adding or subtracting these electrical quantities and deriving from the sum or difference a final electrical quantity proportional to the antilogarithm of the sum or difference. A valve wattmeter is shown in Fig. 1, and includes a logarithmic voltage element LVE, a logarithmic current element LIE, and an anti-logarithmic or exponential element ALE. The logarithmic elements include diodes D1, D2, connected across input resistors R1, R2 and having a common load resistor CLR. The voltage element LVE is connected across leads L1, L2 connecting a source of power to a load, the current element LIE being connected across a resistor R in the lead L1. The output currents from both logarithmic elements LVE and LIE pass through the common resistor CLR where the currents, which bear instantaneous logarithmic relationships to the potential across and current in the leads L1, L2, are added. The element ALE includes a variable-mu valve V1, between the grid and cathode of which is applied the potential developed across the resistor CLR. A milliammeter MA is included in the output circuit of the valve V1. A DC amplifier may be interposed between the valve V1 and the milliammeter MA. The diodes D1, D2 may be replaced by pentodes connected to operate as polarised diodes, the screen and suppressor grids converting the characteristics of the pentodes from exponential to logarithmic. The common resistor CLR may be replaced by separate resistors in each element connected in series as far as the element ALE is concerned. If, as required in a valve wattmeter, the two currents are to be added, the anode of one pentode is connected to the cathode of the other, whereas if the currents are to be subtracted the pentodes are connected cathode to cathode. The component of power applied to each of the input circuits may be the voltage or the current component.
Patent GB-973834-A (GB)
IPC: C09C1/56
Filed: 1962-04-11
Abstract: A carbon black composition comprising two carbon blacks, the first of which has a lower modules value and a higher abrasion loss than the second, the ratio of the second carbon black to the first being at least 1 : 1 by weight whereby the mixture has a preselected modulus value intermediate between the modulus values of the two carbon blacks and an abrasion loss not substantially greater than that of the second carbon black.  Two streams of gas may be blended to form the product.  The carbon blacks may be produced by cracking a hydrocarbon by combustion of a portion of the hydrocarbon and/or that of a second hydrocarbon. The hydrocarbon may be from a petroleum or non-petroleum source e.g. methane, buthane, pentane, gas oils, kerosene, gasoline boiling range hydrocarbons, heavy and light naphthas, residual and cycle oils.  The combustion supporting gas may be air, oxygen, or oxygen enriched air in amount to completely combust the fuel. Modulus control additives may be: alkali or alkaline earth metals as their inorganic compounds e.g. halides, carbonates, fluorosilicates, borates or hydroxides in amount 0.001% to 3% of the feedstock.  Solid carbonaceous materials e.g. coal, coke, charcoal, lignite in amount up to 15% of the feedstock may be incorporated. The additive may be in particulate form or in aqueous solution and may be introduced separately, or in combination with one or more of the reactants. The modulus may also be controlled by establishing and maintaining a constant gas flow rate of fuel and combustion supporting gas while varying the feedstock flow rate to establish the preselected temperature. The reaction may be stopped by quenching with water.  In examples carbon blacks were prepared at 2640 DEG F. and 3050 DEG F. and blended and compounded with:  SBR 1500 rubber softener (an aromatic petroleum oil), ZnO, S, stearic acid, mercaptobenzo thiazole, diphenyl guanidine and cured at 293 DEG F.  In different examples (2) a 15% solution of NaCl, (3) 3% of bituminous coal, (5) CaCl2, and (6) coke and charcoal were added.ALSO:A rubber composition containing two carbon blacks, the first of which has a lower modulus value and a higher abrasion loss than the second, the ratio of the second carbon black to the first being at least 1:1 by weight whereby the mixture has a preselected modulus value intermediate between the modulus values of the two carbon blacks and an abrasion loss not substantially greater than that of the second carbon black. In an example carbon blacks prepared by cracking a hydrocarbon at 2640 DEG F. and 3050 DEG F. were blended and compounded with: SBR-1500, softener, ZnO, S, stearic acid, mercaptobenzothiazole and diphenylguanidine and cured at 293 DEG F.
Patent GB-183958-A (GB)
Title: Improvements in and relating to gramophones and the like instruments
IPC: G10K13/00
Filed: 1921-05-20
Abstract: 183,958. Hodgrkinson & Son, J. W., and Hodgkinson, F. W. May 20, 1921. Sound magnifying and directing appliances.- The horns of gramophones and like instruments are constructed of, or covered with, lead or other non-resonant metallic substance of a soft nature and low elasticity.
Patent GB-495803-A (GB)
Title: Improvements in roof constructions
IPC: E04B7/10
Filed: 1937-05-21
Abstract: 495,803. Roofs. SZEGO, S. May 21, 1937, No. 14197. Convention date, June 4, 1936. [Class 20 (iv)] A roof comprising beams a which intersect each other at an angle to form a grid is arranged with the grid cranked alternately upwards and downwards along lines which coincide with the intersection points of the beams and are diagonal relative to the latter. The grid shown in Figs. 1 and 2 is cranked along lines which are parallel to a boundary, the cranking being effected regularly with the same inclination at alternate rows of beam intersection points so as to provide ridges b and valleys c. Alternatively, the cranking may be effected, as shown in Fig. 4, at two out of every three rows of beam intersection points, and with different angles of inclinations, so as to provide a " saw-tooth " effect. The roof grid is surrounded by edge girders d carried by supports e.