baber/WOPTO huggingface dataset:
Patent GB-814091-A (GB)
Title: A method or process of testing applicable to the control of manufactures in which temperature is important
Inventor: LEES DAVID SAVIDGE
IPC: G01K1/02
Filed: 1955-12-02
Abstract: 814,091. Discharge-tube relay circuits. IMPERIAL CHEMICAL INDUSTRIES Ltd. Nov. 16, 1956 [Dec. 2, 1955], No. 34530/55. Class 40 (6). [Also in Group XXXVIII] A circuit for sending a pulse to an indicator whenever a change in temperature occurs comprises a temperature-sensitive element, means for doubly differentiating the voltage from it, and a trigger circuit operating a relay in response to the output of the second differentiator. In Fig. 2 the voltage across the thermistor t is differentiated by C1R1 and amplified by V1, the components R<SP>1</SP>, C<SP>1</SP> and C2 serving to filter out noise and A.C. pick-up which would otherwise cause false triggering. The time-constant of C1R1 may be 1-60 seconds, e.g. 30 seconds. The second differentiator C3R2 (of similar timeconstant but with a higher capacitance) has associated diodes V4 to limit the grid swing of the amplifier V2. The pulse from the latter cuts off V3A, the positive feedback from cathode to cathode serving to make the change more rapid so that relay RL1 is immediately de-energized. Contacts RL1/1 then cut off V3B for a time dependent on the constants of its grid circuit and relay RL2 via contacts RL2/1 completes the circuit of the recorder galvanometer which is joined to socket Z. The valve V3A can also be operated so that it is normally cut-off and becomes conductive on arrival of the pulse, contacts RL1/1 then being normally open. The red, green and amber lamps operated by RL1/2 show the instantaneous state of the circuit. The power supplies are stabilized by neon tubes V6-V9, and the heaters are supplied from a constant voltage transformer T2.
Patent GB-778922-A (GB)
Title: Improvements in or relating to shuttering or formwork for use in building construction
IPC: E04G9/04
Filed: 1954-11-29
Abstract: 778,922. Shuttering for casting concrete in situ. AUSTIN, F. B.. Nov. 28,1955 [Ncv 29, 1954; Dec. 15. 1954], Nos. 34542/54 and 36340/54. Class 20(2) A shuttering panel comprises a frame 1, 2, 3, 4, Fig. 1. with a covering sheet 11, and along at least one side of the frame but spaced inwardly therefrom, bearer or reinforcing members 6, between which and the corresponding side of the frame apertures 34 are provided in the covering sheet for the passage of tie bolts 64, Fig. 7 to couple a pair of similar parallel panels together by cleats &c. bearing on the frame and bearing members. The covering sheet may be inset from the frame edges or two adjacent sides, and protrude beyond them on the other two sides to provide overlap on adjacent panels. Fig. 5 shows a corner unit reinforced with similar spaced bearing members 40,41.
Patent GB-316075-A (GB)
Title: Improvements relating to mechanical excavators
IPC: E02F3/30
Filed: 1928-11-24
Abstract: 316,075. Fleming & Ferguson, Ltd., and Appleton, W. S. Nov. 24, 1928. Scoop-arm machines.- In an excavator in which the dipper-arm is operated by a motor on the boom, the motor is aiso utilized to operate the backing rope. As shown, the backing rope 5 and a rope 6 connected to a slidable counterweight 7 are oppositely wound round connected drums 1, 2, or a single drum, and the drums or drum may be connected by a clutch to a shaft. 12 driven by the motor 4 by which the dipper arm 13 is operated.
Patent GB-824683-A (GB)
Title: Improvements in or relating to pyrometers
Inventor: PATTISON JOHN ROBERT
IPC: G01J5/08
Filed: 1956-11-13
Abstract: 824,683. Radiation pyrometers. BRITISH IRON & STEEL RESEARCH ASSOCIATION. Nov. 13, 1957 [Nov. 13, 1956], No. 34675/56. Class 97(3) A surface pyrometer comprises a concave surface such as the hemisphere 19 which when placed on the surface whose temperature is to be measured forms an enclosure giving black body radiation at an aperture 16 in the enclosure, and an optical system including a disappearing filament for determining the brightness temperature of the aperture. The radiation from the aperture 16 passes through a disc 17 of heat resisting glass and is focused on the filament 20 by a lens, and the filament is examined with the eyepiece 21. The head 13 of the instrument may be made highly reflective by plating it with gold, platinum or rhodium. A metre which responds to an electrical parameter of the filament 20 may be calibrated directly in terms of temperature.
Patent GB-358340-A (GB)
Title: Fuel injection valves for internal combustion engines
IPC: F02M61/10
Filed: 1930-11-19
Abstract: 358,340. Fuel injectors. LANG, F., 41, Laimerstrasse, Munich, Germany. Nov. 19, 1930, No. 34825. [Class 7 (iii).] A fuel injector which has a needle valve supported with clearance throughout its length is held on its seat by a spring- pressed plunger. Fuel enters at h and raises a plunger a against the action of a spring d. The needle valve b, as shown in Fig. 1, is formed with a projection f which enters a recess in the plunger a so that the needle is raised rapidly after the plunger has moved a short distance. In Fig. 2, the end a<2> of the plunger engages a recess in the head bl on the needle. A sleeve e surrounding the plunger closes the valve housing and fuel which leaks past the plunger is discharged through the passage l.
Patent GB-1196933-A (GB)
Title: Pressure Actuated Fluid Seal
IPC: F02M1/00
Filed: 1967-07-28
Abstract: 1,196,933. Seals. UNITED AIRCRAFT CORP. 28 July, 1967 [5 Aug., 1966], No. 34914/67. Heading F2B. [Also in Division F1] A seal between spaced inner and outer ducts 26, 40 in, for example, a jet propulsion engine comprises pivoted segments 112 which are acted upon by the pressure of the exhaust entering from the rear of the engine to seal against the surface of the outer duct 40 and against an arcuate surface 106 provided on the inner duct 26. The segments overlap one another and are loosely hinged on to brackets 110 by pairs of arms 114, the arrangement allowing the seal to expand and conform to the thermal movements of the ducts. The nozzle outlet is controlled by flaps 44 which are hinged to the outer duct 40 and moved over a cam surface 50 by actuators 84, the outer duct being guided in its axial movement by rollers 48, 58 running in channels 6.
Patent GB-602582-A (GB)
Title: A process for mixing a high molecular substance with asphaltic bitumen or pitch
IPC: C08L27/04
Filed: 1945-12-27
Abstract: High molecular substances, having molecular weights of more than 5000 according to Staudinger, are intimately mixed with asphaltic bitumen or pitch heated to temperatures within 10 DEG  C. of their Ring and Ball melting point.  The mixing is preferably carried out by kneading.  Suitable high molecular substances are polymers and copolymers of alkanes, alkadienes, vinyl and vinylidene compounds, alkynes and derivatives thereof.  After mixing, the composition is preferably heated to a temperature above the Ring and Ball melting point of the bitumen or pitch, but below the decomposition temperature of the high molecular substance.ALSO:Polymers and copolymers of alkadienes, particularly butadiene-vinylidene chloride copolymer, are specified as high molecular substances, having molecular weights of more than 5,000 according to Staudinger, which are intimately mixed with asphaltic bitumen or pitch heated to temperatures within 10 DEG C. of the Ring and Ball melting point. The mixing is preferably carried out by kneading, after which improved effects can be obtained by further heating to temperatures above the Ring and Ball melting point of the bitumen or pitch but below the decomposition temperature of the high molecular substance.
Patent GB-843495-A (GB)
Title: Frequency multiplying transformer
IPC: H01F38/04
Filed: 1956-11-15
Abstract: 843,495. Changing frequency. BIRINGER, P. P. Nov. 15, 1956, No. 35018/56. Class 38 (2). A frequency multiplying arrangement for supplying a single-phase load 28 from a threephase source 18, 19, 20 comprises star-connected primary windings 11, 12, 13, one for each phase, each wound on a separate saturable core path, and associated series-connected secondary windings 21, 22, 23. Delta-arranged capacitors 33, 34, 35 connected to the terminals of star-connected auxiliary windings 29, 30, 31 compensate for line current distortion and provide power factor correction. The power output may be controlled by varying the value of D.C. in a fourth winding on each core, Figs. 4, 7 (not shown). The D.C. may be obtained by rectifying a supply tapped from one of the secondary windings and controlled in value by a variable transformer, Fig. 9 (not shown). To prevent induction of A.C. in the D.C. windings, the windings and cores may be divided into two parts each and suitably arranged. The input may have more phases than three and a polyphase output may be obtained by associating a number of single-phase outputs. Each transformer may comprise a laminated core 45 with a central limb carrying windings of flat copper tubing with the primary winding 11 lying between the inner secondary winding 21 and outer auxiliary winding 29, Fig. 3. The transformers may be assembled as shown in Fig. 6 with upper and lower halves, 39, 40, 41 and 39a, 40a, 41a, held together by frame strips 53, 54 and terminal strip 55.
Patent GB-1528549-A (GB)
Title: High-frequency power combiner or divider
IPC: H01P5/12
Filed: 1976-08-23
Abstract: 1528549 H.F. power combiner/divider TDK ELECTRONICS CO Ltd 23 Aug 1976 [26 Aug 1975] 35037/76 Heading H4A An H.F. power combiner or divider comprises a plurality n of circulator-type non-reciprocal isolators each having an input port and an output port. For power combining the output ports are connected in parallel. For power division the input ports are connected in parallel. Each of the parallel-connected ports has an impedance nZ 0 , where Z 0  is the impedance of a load or source to be matched. The non-parallel-connected input or output ports are impedance-matched to their respective loads or sources by the adjustment of capacitance or inductance within the devices.
Patent GB-914499-A (GB)
Title: Flexible plastic sheet material
IPC: B44F9/08
Filed: 1960-10-13
Abstract: 914,499. Coated fabric; laminates. DU PONT DE NEMOURS & CO., E. I. Oct. 13, 1960 [Nov. 12, 1959], No. 35068/60. Class 140. A flexible plastic sheet material comprises a substantially opaque layer and integrally bonded thereto a translucent coloured layer, said translucent layer consisting essentially of an organic film-forming material. 2 to 25% by weight of pearl essence, and a total of 0.5 to.15% by weight of one or more of the following lowhiding light-fast coloured pigments: quinacridone, substituted quinacridone, flavanthrone, dibromoanthanthrone, polychloro - anthraquinone, 2,1(N)-benzacridone, tri- and tetra-bromo pyranthrone, perylene, dibromopyranthrone, anthrimide, dimethoxy dibenzene anthanthrone, the alumina hydrate lakes of said pigments, copper phthalocyanine, and polychloro copper phthalocyanine, said percentages being based on the total dry weight of said translucent layer. The opaque layer which may be formed as a coating on a knitted cotton sheet, may consist essentially of an organic film-forming material and a high-hiding light-fast coloured pigment. The colour of the opaque layer may be of greater brilliance than the colour of the low-hiding pigment. The colour of the low-hiding pigment may be of greater saturation than the colour of the opaque layer. The pearl essence may be the natural type and the colour of both the opaque layer and the low-hiding pigment are of high saturation whereby the finish of the sheet material is characterized by a colour of high saturation and a non-milky opalescence. The pearl essence may be a synthetic type and the colour of both the opaque layer and the lowhiding pigment are of high brilliance whereby the finish of the sheet material is characterized by a colour of high brilliance and a milky opalescence. The surface of the sheet material may be grooved or embossed before or after the translucent layer is applied, e.g. only in the valleys of the embossed pattern. The filmformer of both the opaque and. the translucent layers may be a nitrocellulose resin, polyvinyl chloride, or a copolymer of vinyl chloride with an ethylenically unsaturated monomer copolymerizable therewith, e.g. vinyl acetate, or vinylidene chloride. Film-forming materials for use in the translucent layer include drying oils, oil-modified alkyd resins, oleoresinous varnishes, elastomers, natural resins and thermoplastic and thermosetting synthetic resins. Examples of natural and synthetic pearl essence are given. The translucent material may be applied by a coating method, e.g. rolling, printing or spraying, or by laminating a preformed film of translucent material to a film of opaque layer, e.g. by hot pressing. A layer of clear adhesive may be present between the layers, and a further clear protective coating may be applied over the translucent layer. Specifications 810,005, 828,051, 828,052 and 851,976 are referred to.
Patent GB-1200755-A (GB)
Title: Control device for a throttle valve of an internal combustion engine
Inventor: RHODES KEITH H
IPC: F02D11/08
Filed: 1967-08-01
Abstract: 1,200,755. Fluid-pressure servomotor systems. WALKER MFG. CO. Aug.1, 1967, No.35307/67. Heading G3P. [Also in Division F1] A device for operating the throttle valve of an I.C. engine carburetter comprises a diaphragm 48 connected by a shaft 13 to a lever (7), Fig.1 (not shown), on the throttle valve and the diaphragm is subjected to the vacuum in the engine intake manifold under the control of a valve 63 actuated by an evacuated metallic bellows 35. The bellows 35 is subject to manifold vacuum through a conduit 15 and opens the valve 63 at a predetermined vacuum. The bellows 35 is adjustable relative to the valve 63 by the threaded shaft 37. The diaphragm chamber 27 is vented to atmosphere through an opening 61. In a further embodiment, Fig.3 (not shown), the valve (63a) controlling the application of manifold vacuum to the diaphragm is screw-threaded into an end-plate (75a) of the bellows (35a).
Patent GB-839352-A (GB)
Title: Thiosilanes and method of production thereof
Inventor: DEWAR MICHAEL JAMES STEUART
IPC: C07F7/08
Filed: 1955-03-29
Abstract: The invention comprises thiosilanes having the general formula R4Si where each R represents an alkyl or alkyl thio group, at least one and not more than three of the R groups being alkylthio groups and at least one of the four R groups being an n-alkyl or n-alkylthio group containing 10 or more carbon atoms. They are prepared by mixing an alkyl silicon halide of the general formula SiRnX4-n where R is an alkyl group, X is a halogen atom, and n is 1, 2 or 3 in the presence of an inert liquid which is a solvent for the desired product, with a sodium alkyl mercaptide present in an amount relative to alkyl silicon halide slightly in excess of the appropriate molecular quantity, at least one of the alkyl or alkylthio groups present in the reactants being an n-alkyl or n-alkylthio group containing at least 10 carbon atoms and heating the mixture after continued stirring.  In examples: (1) tris-(n-dodecanethio) methyl silane is prepared by adding an ethereal solution of trichloro methyl silane to a stirred suspension of sodium n-dodecyl mercaptide in ether, refluxing the mixture, and then filtering and fractionating the product; in similar manner are prepared (2) bis-(n-dodecanethio)-dimethyl silane from dichlorodimethyl silane and sodium n-dodecyl mercaptide; (3) n-dodocanethio trimethyl silane from trimethyl chloro silane and sodium n-dodecane mercaptide; (4) n0dodecane tris-(ethanethio) silane from n-dodecane trichloro silane and sodium ethane mercaptide; and (5) n-dodecane tris(n-dodecanethio) silane from n-dodecane trichloro silane and sodium n-dodecane mercaptide.  The alkylthio-silanes may be used as promoters for the dropwise condensation of steam as described in Specification 839,351.
Patent GB-394355-A (GB)
Title: Improvements in or relating to electrical apparatus for measuring, indicating, protective or other purposes
IPC: G01R1/30
Filed: 1931-12-22
Abstract: 394,355. Electrification detectors; pressure meters. THORNTON, W. M., Armstrong College, Newcastle-on-Tyne. Dec. 22, 1931, No. 35426. [Class 37.] The capacitance current in a circuit having capacity energized from alternating or intermittent voltage is increased by periodically interrupting the circuit at a frequency equal to or different from, preferably twice, that of the energizing voltage, the interrupter being in series with the capacitance device which therefore charges and discharges in the same circuit. The apparatus is employed for reproducing a high voltage on a small scale, and for measuring, indicating and testing purposes generally. A continuous-current circuit may be tested if a second interrupter is employed. For voltage measurement, Fig 1, the interrupter, which may comprise a stepped drum B having peripheral recesses filled with, insulating material, is connected in circuit with an ammeter A<2> and condenser A. The circuit may include a rectifier. On high tension lines, Fig. 5, the burden D is earthed and connected to a bushing type insulator C through the interrupter B, a further condenser C<1> being provided to minimise sparking. For indicating the presence of an electrostatic field, a charged body is connected to the interrupter which may be a buzzer, the indication being given on a telephone. In a construction, Fig. 8, the indicator consists of casing parts K<1>, F, the part F collecting the charge and having a buzzer interrupter T. The part K<1> contains a battery K and switch L. Terminal sockets in a plug F<1> connect the telephone receiver H. Tn another construction, a pair of head-pieces is employed, one comprising a telephone receiver of which the casing constitutes the charged body, and the other having an air or hand-driven interrupter located within it.
Patent GB-968569-A (GB)
Title: Method and apparatus for bending tube panels
IPC: B21D7/06
Filed: 1962-09-18
Abstract: 968,569. Bending. COMBUSTION ENGINEERING Inc. Sept. 18, 1962 [Oct. 25, 1961], No. 35453/62. Heading B3E. A method of bending multi-tube panels by means of spaced bending rollers comprises the steps of disposing at least three rolls including a die roll with their axes vertical and horizontally spaced from one another, opening a lengthwise space between said die roll and the other rollers, raising the tube panel above said space with the plane of the panel generally vertically disposed, lowering the panel into said space so that said die roll is disposed on one side of the panel and the other rolls are disposed on the panel's opposite side, causing said die roll to move into the space between two other rolls thereby applying a bending force to the panel while still vertically disposed, releasing the bent panel from said bending force, and removing the bent panel from said lengthwise space. A panel P of tubes to be bent is lowered into the space between two vertical rolls A, B and a die roll C, overhanging portions of the panel P being supported on adjustable bars 68 on dollies D. A pivoted link 30 of a yoke Y carrying the roll C is then closed down on to a tie-rod 28 of the yoke and locked by a pin 31. A collar 56 on the roll C, counterbalanced by a weight 59, is then lowered into contact with the top of the panel P and clamped in position. An angle indicator Q is then attached to the lowermost panel tube through clamps 79, 81 connected to the indicator by parallel links 78, 80, respectively. An electric motor M is then switched on to rotate threaded sleeves S around threaded rods 34, 35 secured to the yoke Y to pull the roll C between the rolls A, B and thus bend the panel P. The yoke Y may alternatively be moved by hydraulic cylinders replacing the means M, S, 34 and 35. Panels P formed of tubes touching and tack-welded together or of tubes spaced somewhat apart and the gaps filled by weld deposits may be bent. A large diameter roll C may be used. Specification 780,446 and U.S.A. Specification 2,987,052 are referred to.
Patent GB-776302-A (GB)
Title: Improvements relating to glass fibres and compositions for treating them
IPC: C03C25/28
Filed: 1954-12-08
Abstract: A composition comprises 0.01 to 2 per cent of a fatty acid cationic amine lubricant for glass fibres, 0.25 to 5 per cent of a polyvinyl acetate resin, and 0.01 to 1 per cent of a silane having from 1 to 3 hydrolysable groups and a straight chain, unsaturated organic group of less than 8 carbon atoms, said silane having been dissolved in an organic solvent, e.g. acetone, and the solution then dispersed at below 60 DEG  F. in an aqueous medium and the pH optionally adjusted to 3.3 \sB 0.3, prior to combination with the other ingredients.  The pH of the final dispersion may be adjusted to 5.5 \sB 0.5 by means of ammonium hydroxide or acetic acid.  The resin may be added as a dispersion and specified are polyvinyl acetate and vinyl acetate/vinyl chloride copolymers, optionally containing plasticizers such as dibutyl phthalate.  The silane, which forms polysiloxanes when the compositions are set, e.g. by heating, may be vinyltrichlorosilane, divinylchlorosilane, allyldichlorosilane or vinyldiethoxysilane.  Lubricants disclosed are pelargonic acid-tetraethylene pentamine condensate, didodecylammonium chloride, ditalloammonium chloride and complexes and salts thereof, and these are preferably added in organic acid solution of pH 6.3 \sB 0.3.  The compositions are useful for treating glass fibres used in the reinforcement of plastics such as laminates, and in the manufacture of coated fabrics from strands or yarns.ALSO:Glass fibres are coated with a composition comprising 0.01-2 per cent of a fatty acid cationic amine lubricant, 0.25-5 per cent of a polyvinyl acetate resin and 0.01-1 per cent of a silane having 1-3 hydrolysable groups and a straight-chain, unsaturated organic group of less than 8 carbon atoms, said silane having been dissolved in an organic solvent, e.g. acetone, and the solution having been dispersed at below 60 DEG F. in an aqueous medium before combination with the other ingredients.  The pH of the final dispersion may be adjusted to 5.5 \sB 0.5 by means of ammonium hydroxide or acetic acid.  Resins specified are polyvinyl acetate and vinyl acetate/vinyl chloride copolymers, optionally containing plasticizers such as dibutyl phthalate, and the silane, which forms polysiloxanes when the compositions are set, may be vinyltrichlorosilane, divinylchlorosilane, allyldichlorosilane or vinyldiethoxysilane.  Lubricants specified are pelargonic acid-tetraethylene pentamine condensate, di(dodecyl)-ammonium chloride, di(tallo)ammonium chloride and complexes and salts thereof. The glass may be processed into strands or yarns and into woven or knitted fabrics, and may also be used in the reinforcement of plastics, e.g. in laminates, and the manufacture of coated fabrics.
Patent GB-367917-A (GB)
Title: Improvements in or relating to printing machines
IPC: B41L19/00
Filed: 1930-10-20
Abstract: 367,917. Rollers. ADDRESSOGRAPH CO., 901, West Van Buren Street, Chicago, U.S.A. Oct. 20, 1930, No. 35692/31. Convention date, June 6. Divided application. [Class 42 (ii).] A segmental impression roller for use in a rotary-printing machine comprises a D-shaped member 35 fixed to a shaft 11, and a complementary part 41 provided with a dovetail groove 43 engaging a channel-plate 38 fixed to the flat side of the member 35 by screws 39 ; springs 40 coiled around the screws press the plate 38 towards the member 35 and clamp the part 41 in position. Endwise movement of the part 41 is prevented by washers 44, 46 fixed in position by screws 45, 47.