baber/WOPTO huggingface dataset:
Patent GB-198910-A (GB)
Title: Improvements in and relating to moulded materials and methods of making the same
IPC: B29C43/00
Filed: 1922-06-09
Abstract: 198,910. British Thomson - Houston Co., Ltd., (General Electric Co.). June 9, 1922. Fibrous plastic compositions.-A process for making moulded articles consists in converting fibrous material into sheet form, e.g. paper or cloth, coating the sheet with a thermoplastic binder such as varnish, shellac, resin, or bakelite, shredding it, and compressing the shreds in heated moulds with or without the admixture of other fillers or binders. The process is particularly applicable to fibres, such as asbestos, wood, and cotton, which by wet purification processes have been rendered too flocculent to mix readily with binders. The invention also includes the shredding and moulding of waste pieces of fabric coated with thermoplastic material. Specifications 7354/90, [Class 22, Cements &c.], and 8815/15 are referred to.
Patent GB-611048-A (GB)
Title: Amplifying devices for electric motor control systems and the like
IPC: G05B11/01
Filed: 1945-06-25
Abstract: 611,048. Electric follow-up systems. SMITH & SONS (ENGLAND), Ltd., S., MEREDITH, F. W., FURZEHILL LABORATORIES, Ltd., and MILSOM, F. R. June 25,1945, No. 16210. [Class 40 (i)] In a balanced valve demodulator of the type used for motor control in which an incoming modulated A.C. signal is compared with a reference A.C. of the same frequency, saturation of the valves by signal components in quadrature with the reference voltage is prevented by arranging a negative bias in the anode circuit of the valves so that they conduct only on the peaks of the reference voltage. As shown, the incoming signals are applied at 1 to an amplifying valve 13 having a load 37, 23 which is adjusted to give a suitably placed output. The H.T. for this stage is provided by connecting it in the common cathode circuit of demodulator valves 3 and 4, a byepass condenser being provided. The output of the stage is applied through capacitor 25 to the grids of valves 3 and 4. The anode circuit of valve 4 comprises transformer winding 17 supplying anode potential saturation control winding 8, valve 13 and its load, resistor 24 and one half of winding 18 which supplies a bias in antiphase to the anode potential. Condenser 21 provides an A.C. byepass across valve 13 and winding 8, and also accumulates a charge which limits the conduction of valve 4 to the positive peaks of the anode voltage. Similarly, valve 3 is arranged to conduct on alternate peaks to valve 4. The effect of any in-phase signal is to vary the anode current pulses of the two valves differentially so that the saturations of reactors 5 and 6 and hence the reactance of windings 9 and 10 are differentially varied and hysteresis motor 19 runs one way or the other in accordance with the sense of the input signal relative to the reference voltage 2. Valve 13 may be arranged as a cathode follower stage to minimize the effect of H.T. fluctuations, or, as in Fig. 2 (not shown), may be replaced by a pentode. The arrangement shown may also be modified by arranging the anode A.C. potentials of 3 and 4 to be in phase and the grid signals to be fed in antiphase by means of a phase-splitting transformer. Specifications 576,248, 576,249, 611,037 and 611,039, [all in Group XXXV], are referred to.
Patent GB-280132-A (GB)
Title: Closure for milk and the like bottles
IPC: B65D47/36
Filed: 1927-06-21
Abstract: 280,132. Richter, G., (Assignee of Behrens, TV.). Nov. 26, 1926, [Convention date]. Disc closures ; linings for stoppers.-Milk &c. bottles are closed by a disc of cardboard inserted in the mouth thereof, the disc having a small access hole covered by a sheet of parchment-like material adapted to be, penetrated easily to permit a straw stem to be passed through the hole. As shown, the closure comprises a sheet of parchment 3 adhesively secured to between two similar apertured discs 2. Untreated cardboard may be used for the discs.
Patent GB-1005098-A (GB)
Title: Telescopic aerial for automotive vehicles
IPC: H01Q1/12
Filed: 1963-04-26
Abstract: 1,005,098. Washers; bolting. H. KOLBE & H. KOEHLER, [trading as FUBA, ANTENNENWERKE, HANS KOLBE & CO.]. April 26, 1963 [May 29, 1962], No. 16457/63. Heading F2H. [Also in Division H4] A telescopic aerial adapted to be fixed in an opening in the coachwork 9 of a vehicle from the outside only comprises a foot 13 of elliptical cross-section which is inclined during insertion through an elliptical opening, the foot then being moved angularly so that shoulder extensions 14 and 15 are clamped against the coachwork by a nut 20 and sleeve 18. The aerial is held extended by a circlip 24 engaging in a groove 25 formed in the aerial rod 3.
Patent GB-712529-A (GB)
Title: Improvements in and relating to double-acting billet extrusion presses
Inventor: NORMAN ERIC
IPC: B21C23/28
Filed: 1951-07-12
Abstract: 712,529. Extruding. LOEWY ENGINEERING CO., Ltd. July 7, 1952 [July 12, 1951], No. 16574/51. Class 83 (4) In a double acting extrusion press the holder for the billet container is slidingly supported on the press bed and hydraulic thrust bearings are provided at both ends of the container to resist unbalanced axial forces. A press for sheathing electric cables has a container 16 with a chamber 18 into which billets are inserted at each end and are extruded by a pair of plungers 15 on rams 11. The rams 11 are interconnected by press columns 14 through lugs 13 and rest on the machine bed. One ram is held against longitudinal movement by keys, the other being free to slide on the bed 10. The holder 17 for the container 16 has feet 20 slidable on guide faces 21 of the bed 10. Sliding movement of the holder 17 is resisted through the intermediary of spacers 24 by pairs of hydraulic thrust bearings 23 mounted in diametrically opposed positions at each end of the holder 17. The spacers 24 are slidably mounted in brackets 25 on the press columns 14. In the event of the unbalanced pressure overcoming the resistance of the plungers 23 a safety valve means (not shown) cuts off the supply to the unbalanced ram I and opens an exhaust valve upon movement of the container unit.
Patent GB-1029185-A (GB)
Title: Process for introducing nuclear fuel into a plant for generating high-temperature plasmas
IPC: H05H1/22
Filed: 1963-04-26
Abstract: 1,029,185. Ion beam tubes. KEMREAKTOR BAUUND BETRIEBSGESELLSCHAFT. April 26, 1963 [May 12, 1962], No. 16600/63. Heading HID. [Also in Division G6] A method of introducing nuclear fuel of high kinetic energy and low specific charge into a plant for generating high temperature plasmas, comprises transforming the fuel into a finely divided condensed form of molecule or atom clusters connected by Van de Waals forces. electrically charging the clusters, and accelerating them electrically to high kinetic energies. The fuel may be brought to a temperature below - 180 C. and preferably below -250 C. in a cryostat 1 and expanded through nozzles in a high vacuum to produce clusters. e.g. of deuterium molecules. These clusters are ionized in the ion source 3, of the electron bombardment type, and accelerated by an electric field produced by electrodes 5 into a mirror type thermonuclear apparatus. The acceleration preferably produces energies of at least 100 eV. per atom, and there are preferably at least 10 molecules or atoms for every elementary charge. After acceleration the charge may be partly or wholly removed.
Patent GB-743066-A (GB)
Title: Improvements in or relating to high frequency apparatus
Inventor: TOMIYASU KIYO
IPC: H01P1/04
Filed: 1952-07-01
Abstract: 743,066. Wave-guides. SPERRY CORPORATION. July 1, 1952, No. 16601/52. Class 40 (8). In a wave-guide system, the leakage of microwave energy is prevented by a choke system between parts of the system spaced apart by a distance small compared with one quarter wavelength. The choke comprises a series of metal tines, mutually parallel and equal in length to an odd multiple of a quarter wavelength. Chokes embodying rectangular, elliptical and circular cross-section tines are shown in Figs. 9, 10, 11, 12. Rectangularsection wave-guide systems incorporating the choke are described in connection with a single wave-guide having a gap along one edge, a movable probe device, and a variable transfer directional coupler. Specification 743,065 is referred to.
Patent GB-454043-A (GB)
Title: Improvements in and relating to kerf-forming methods and apparatus for mining machines
IPC: E21C27/16
Filed: 1935-06-11
Abstract: 454,043. Mining-machines. SULLIVAN MACHINERY CO., 307, North Michigan Avenue, Chicago, U.S.A. June 11, 1935, No. 16783. Convention date, June 21, 1934. [Class 68 (in A cutter chain for a mining-machine has cutting elements arranged to cut two slots spaced apart to leave a core of a width substantially as great as that of the body of the chain, some of the chain elements carrying means for transmitting lateral breaking pressure to the core. In Figs. 1 and 2, the chain comprises U-shaped bit blocks 11 connected by links 13 and provided with extensions 14 adapted to abut during rectilinear movement of the chain. The bit blocks slide on angle wear plates 6 on the jib and carry in each arm a reversible rectangular bit 19 bearing against a pin 22 and held by a screw 23. The inner walls of some of the arms carry wedge members 26 which break away the core left between the arms. The members 26 may be supplemented or replaced by core breakers 30, Fig. 10, comprising rotary wedge discs which may be all on one side of the chain or arranged alternately to act on opposite sides of the core, and are carried by intermediate links or by lugs on the front extensions 14 of the bit blocks. In Fig. 12, the breaker discs 45 alternate and are rotatable on bushings 44 threaded to square shafts 42 welded to forward extensions 41 of the blocks and adapted, during rectilinear movement of the chain, to abut against rear extensions 41.
Patent GB-203427-A (GB)
Title: Improvements in and relating to electrical fuse and switch contact clips and cable blocks
IPC: H01R4/36
Filed: 1922-06-17
Abstract: 203,427. Wootton, C. A. June 17, 1922. Contacts for switches and fuses, of the clip type. In the construction shown in Fig. 1, a single strip of metal is bent up into a circular form 5 united by a narrow neck portion 4 to the clip contact portion 1, 2. The portions 4, 5 fit into a channel-section terminal block 11. The cable is inserted into the circular part 5 and a fixing screw 8 screwing into the block and bearing against the cable secures the block to the base, the cable to the contact and the contact to the block. The block may have a separate passage in which the cable may be secured by a fixing screw.
Patent GB-1223155-A (GB)
Title: Increasing the light-sensitivity of electrophotographic copying materials
IPC: C09B23/10
Filed: 1968-04-08
Abstract: 1,223,155. Photo-conductive layer. RICOH K.K. 8 April, 1968 [12 April, 1967], No. 16813/68. Heading HlK. The light sensitivity of a photo-conductive layer is increased by including a merooyanine dye of formula wherein X is wherein R is an alkyl radical having 1 to 5 C atoms and m and h represent integers including O. In the specific embodiments a mixture of ZnO with a silicone or alkyd resin and a volatile nitrogen base is sensitized with the dye and coated on to an aluminium support or electrically conducting paper to give an electrophotographic plate. In the embodiments R is CH 3  or C 2 H 5  whilst m and n are 1 or 2.
Patent GB-1431030-A (GB)
Title: Method of removing an undesired component from a polysulphone  resin
IPC: C08G75/23
Filed: 1974-04-17
Abstract: 1431030 Purifying polysulphone resins TRW Inc 17 April 1974 16864/74 Heading C3R In order to remove undesired components from a polysulphone resin containing the repeating unit the resin is dissolved in N-methyl pyrrolidone, anisole or nitrobenzene which also dissolves the undesired components, then a non-solvent liquid is mixed with the solution so that the polysulphone selectively precipitates and is separated from the undesired components. The polysulphone may be re-dissolved and the process repeated. In an example the polysulphone resin is dissolved in N-methyl pyrrolidone and precipitated with isopropyl alcohol. Other precipitants are water, methanol, ethanol and acetone.
Patent GB-1161635-A (GB)
Title: Improvements in or relating to Magnetic Testing Systems
Inventor: SCHROEDER KENNETH WALLACE
IPC: G01N27/84
Filed: 1967-04-12
Abstract: 1,161,635. Magnetic flaw testing systems; current measurement. MAGNAFLUX CORP. April 12, 1967, No. 16865/67. Headings G1N and G1U. The magnetizing power supply for a magnetographic flaw tester is derived from an S.C.R. with an adjustable R. C. firing time control to deliver unidirectional pulses for À04 up to À5 seconds. Fig. 3 (not shown). Current may be passed through the test-piece and also a surrounding coil Figs. 1, 2 (not shown). A 3# arrangement for testing a turbine blade blank is illustrated in Fig. 4 (not shown). Pulse Current Measurement. A pick-up coil 35 mounted alongside the test-piece charges capacitor 89 through rectifier 92. The resulting voltage across the capacitor is measured by a double-triode valve-voltmeter. Reset switch 95 discharges the capacitor after each measurement.
Patent GB-1080526-A (GB)
Title: Polyimines and polybenzimidazolines and their preparation
IPC: C08G73/00
Filed: 1966-04-19
Abstract: An aromatic aldehyde-amine condensation resin has recurring units <FORM:1080526/C3/1> or <FORM:1080526/C3/2> Ar1 is <FORM:1080526/C3/3> , <FORM:1080526/C3/4> , <FORM:1080526/C3/5> , <FORM:1080526/C3/6> , <FORM:1080526/C3/7> or <FORM:1080526/C3/8> X is O, S, CO, SO2 or C1-C3 alkylene radical; Ar2 is <FORM:1080526/C3/9> , <FORM:1080526/C3/100> , <FORM:1080526/C3/111> , <FORM:1080526/C3/122> , <FORM:1080526/C3/133> or <FORM:1080526/C3/144> Y is O, S, CO, SO2, a C1- 3 alkylene radical or <FORM:1080526/C3/155> and Ar3 is a tetravalent aromatic radical derived from Ar2 by adding a bond ortho to each of the bonds shown in the groups defined by Ar2.  The radicals Ar1, Ar2 and Ar3 may contain one or two lower alkyl, lower alkoxy, halogen or amino substituents.  The resins may be prepared by reacting an aromatic amine: H2N-Ar2-NH2 or (H2N)2Ar3(NH2)2 having the amino groups in ortho pairs with an aromatic dialdehyde Ar1(CHO)2; reaction may take place in an inert solvent in the substantial absence of oxygen at a temperature from 100 DEG  to 250 DEG  C.
Patent GB-573226-A (GB)
Title: Cathode ray tube apparatus for large screen television purposes
IPC: H04N5/74
Filed: 1943-10-18
Abstract: 573,226. Cathode-ray tubes; television. SOLOMAN, A. Oct. 18, 1943, No. 17099. [Classes 39 (i) and 40 (iii)] A cathode-ray tube; Fig. 6, particularly for large screen television, comprises a long, narrow, flat tube with a plurality of electron guns 24 ... 26 which are operative successively to scan a line in stages. In the colourtelevision apparatus, Fig. 1, successive lines of a picture 1 are projected on to the screen 6 of such a multi-gun cathoderay tube 7 by a rotating drum 2 with reflecting surfaces 2a, the picture being scanned successively for different primary colours through strip-filters 6b, 6g, 6r under the control of deflecting plates 12 and a deflecting circuit 13. The same apparatus is used also for reception to give a coloured image on a large screen 1, colour filters arranged on a rotating disc or drum or on successive reflecting surfaces of drum 2 being interposed in the path of the light from the tube 7. The drum 2 may be replaced by an oscillating reflector, or an oscillating lens may be used. Interlaced scanning with any desired ratio may be used, Figs. 2-5 (not shown), appropriate lines, e.g. every second, third or fourth, being suppressed by application of negative bias to one of the video-amplifier valves.
Patent GB-835554-A (GB)
Title: Electric circuit breakers
IPC: H01H9/04
Filed: 1956-06-04
Abstract: 835,554. Automatic circuit-breakers; mechanical switches retained set; contact members for switches. MECHANICAL PRODUCTS Inc. June 4, 1956 [July 20, 1955; July 25, 1955], No. 17229/56. Class 38 (5). A circuit-breaker comprises a current-responsive thermal latch 28 operative to automatically release the movable contacts 20 for movement to open position only on the occurrence of overload, a manual actuator 38, 50 operatively connected with the movable contacts 20 and a mechanical latch 52, 52<SP>1</SP>, the actuator being effective on movement in one direction to close the contacts 16, 20 and actuate the mechanical latch to hold the contacts closed and on movement in the other direction to release the mechanical latch and open the contacts without releasing the thermal latch, and means movable with the movable contacts to release the mechanical latch when the contacts open on release of the thermal latch. Figs. 1, 2 and 8 show the circuit-breaker in the closed position in which an assembly comprising flexible contact-carrying arms 22, the thermal latch 28 and a saddle 118 are latched to the upper part 38 of the actuator by the engagement of the latch 28 with abutments 36 on the part 38, which in turn is latched by the engagement of the mechanical latch arms 52, 52<SP>1</SP> with fixed abutments 82. When the circuit-breaker is opened manually by pulling an actuating knob 54, a lost-motion connection 44, 46 permits the part 50 of the actuator to move relatively to the upper part 38 so that cam surfaces 51 on the part 50 spread the mechanical latch arms 52, 52<SP>1</SP> apart and disengage them from the abutments 82. Springs 96, 124 and 128 then open the contacts and force down the actuator. The circuit-breaker is reclosed by pushing in the knob 54 until the contacts close and the arms 52, 52<SP>1</SP> relatch on the abutments 82. When an overload occurs, the thermal latch 28 disengages from the abutments 36 so permitting the springs 96 to open the contacts. At the same time, the spring 124 forces down the saddle 118 so that it strikes flanges 120 extending from the actuating part 50. The resulting movement of the actuator part 50 releases the latch arms 52, 52<SP>1</SP> so that the actuator is forced down to its off position and permits the thermal latch 28 to re-engage the abutments 36 on cooling. Contact members for switches.-Instead of the movable contacts being mounted on the flexible arms 22, Fig. 1, they may be carried on rigid plates pivoted on extended portions of the latch 28, Fig. 15 (not shown), or on rigid plates 14b pivoted on rigid arms 18b, e.g. of stainless steel, welded to the latch 28, Fig. 19. The springs 96 are anchored to the plates 14b so as to cause the plates to pivot when the contacts are opened and closed so as to provide a wiping action. Fig. 19 also illustrates an arrangement having arcing contacts 48b, e.g. of tungsten, and current carrying contacts 46b, e.g. of silver cadmium oxide. Specification 756,764 is referred to.
Patent GB-1331853-A (GB)
Title: Colour stabilization of refined dicarboxylic acids and refined  dicarboxylic acid anhydrides
IPC: C07C51/573
Filed: 1971-05-26
Abstract: 1331853 Colour stabilization of dicarboxylic acids and anhydrides MONSANTO CO 26 May 1971 [27 May 1970] 17255/71 Heading C2C A method for improving the colour stability of a refined dicarboxylic acid or acid anhydride comprises incorporating therein a colourstabilizing amount of a molecular halogen or a compound containing an ionic or labile halogen to give a novel composition therewith provided that when the anhydride is maleic anhydride the colour-stabilizing agent is not an alkali metal chloride or bromide, alkaline earth metal chloride or bromide, silver chloride, hydrobromic acid or hydrochloric acid. Suitable colour - stabilizing agents include inorganic halides and organic compounds such as fumaryl chloride, acrylyl chloride and meso-α,α<SP>1</SP>-dichlorosuccinic acid, and is preferably present in an amount of from 0À01 to 5 p.p.m. Examples describe the stabilization of maleic anhydride.
Patent GB-1204231-A (GB)
Title: Improvements in cathode ray tubes
Inventor: HILLS DOUGLAS SHEPHERD
IPC: H01J31/20
Filed: 1968-04-10
Abstract: 1,204,231. Colour television tubes. RANK ORGANISATION Ltd. 9 April, 1969 [10 April, 1968], No. 17261/68. Heading H1D. An electron gun assembly for producing a plurality of electron beams comprises a plurality of electron emissive areas adjacent which accelerating means are arranged, and screening means to screen the space extending up to the emissive areas from electric fields beyond the screening means. In Fig. 2 there are three cathodes 10, but these could be replaced by emissive areas on a common support, and the accelerating means comprises an apertured disc 12 closely spaced (0À004 inch) from the cathodes. Alternatively the electrode 12 may be spaced further from the cathodes and the latter are surrounded by a flared electrode (12<SP>1</SP>, Fig. 6, not shown) in the manner of a Pierce gun. The screening electrode 14 includes three apertures 15 which may have diameters smaller than the thickness of the disc to ensure adequate screening; alternatively the electrode 14 may comprise two thin plates spaced apart by a distance greater than the diameter of the apertures (Fig. 7, not shown), or the apertures may be covered with meshes (14a, Fig. 6, not shown). Control electrodes 17 may be disposed at each aperture 15 to control the intensity of each beam. Alternatively the electrode 14 may be divided into three insulated sectors (Fig. 3, not shown) each of which constitutes the control electrode for its associated beam. Further electrodes 16 (eleven in number) are disposed along the axis, the ones near electrode 14 being connected to that electrode, and the others being connected to a potential one twentieth of the final E.H.T. voltage. The final electrode 16 may carry two sets of magnetic pole-pieces surrounding each beam for providing dynamic convergence (Fig. 4, not shown). Alternatively the last two electrodes 16 may each carry a pair of electrostatic deflection plates for each beam for providing respectively horizontal and vertical dynamic convergence (Fig. 5, not shown).
Patent GB-334579-A (GB)
IPC: C07C209/18
Filed: 1929-06-05
Abstract: 334,579. I. G. Farbenindustrte Akt.- Ges. Nov. 1, 1928, [Convention date]. Addition to 306,414. Amines.-Primary and secondary amines are made by conducting the vapours of an alcohol (other than a cyclic alcohol) together with a primary amine or ammonia at a raised temperature not substantially exceeding 300‹ C. over a hydrogenating metal catalyst, with or without the application of pressure. In examples, butylamine is obtained from n-butyl alcohol and ammonia, ethylaniline from ethyl alcohol and aniline, and monoethylcyclohexylamme from cyclohexylamine and ethyl alcohol; the products in the last two cases contain traces of the diethyl compounds. Pumice carrying reduced nickel is used as catalyst in each case. Reference has been directed by the Comptroller to Specification 317,079.