baber/WOPTO huggingface dataset:
Patent GB-356898-A (GB)
Title: Improvements in high-pressure lubricators
IPC: F16N3/12
Filed: 1930-08-07
Abstract: 356,898. Grease guns. METALLWERK WINDELSBLEICHE GES., Windelsbleiche, near Bielefeld, Germany. Aug. 7, 1930, No. 23668. Convention date, Oct. 9, 1929. [Classes 102 (i) and 102 (ii).] In a grease gun, of the type in which a high-pressure piston h is arranged within the piston-rod d of the low-pressure piston k, the highpressure cylinder e secured in the rod d has a reduced external diameter at its upper part, forming an annular space r, which communicates at its upper end with the interior of the container a and at its lower end witl the interior of the cylinder e through ports f controlled by the piston h When the container a is pressed down wards, it slides on the rod d and forces grease into the cylinder e The cylinder e then slides on the piston h, against the action of a spring i which is secured to the piston h. A shoulder v on the pistor h forms a stop.
Patent GB-1216153-A (GB)
Title: Forming plastics layers
IPC: B29C41/22
Filed: 1969-05-09
Abstract: 1,216,153. Making artificial films. STORK AMSTERDAM N.V. 9 May, 1969 [10 May, 1968], No. 23810/69. Heading B5B. [Also in Division B2] A continuous or discontinuous layer of a plastics material, e.g. PVC, is made by forcing a thixotropic gel thereof through a rotary printing stencil by means of a squeegee, on to a support surface from which the layer may be removed, the thickness of the layer being controlled by the pressure of the squeegee. The screen may have a plain mesh, preferably not exceeding 150 perforations per linear inch. A succession of discontinuous layers may be applied successively and different layers may be differently coloured. A final wear-resistant transparent layer may be applied over the last of a series of coloured layers.
Patent GB-220827-A (GB)
Title: Oil pump with pistons arranged in a circle and with common driving disk
IPC: F04B1/14
Filed: 1923-09-24
Abstract: 220,827. Woerner, E. Sept. 24, 1923. Cam-actuated pumps; stroke, varying; mountings; multiple-delivery piston pumps; valve-gear. -In a lubricating apparatus comprising a number of pumps 7 arranged in a circle and operated by an inclined disc 4, the portion of the circumference of the disc corresponding to the delivery strokes of the pistons 8 has a helical form. The pprtion of the disc corresponding to the suction stroke may be a short and steep so that delivery takes place during the greater part of the revolution of the disc. The suction valves 15 are opened during the suction stroke by a cam 5 on the driving shaft 3 and tappets 16. The pump cylinders are carried by a disc 6 loosely mounted on the shaft 3. The strokes of the piston may be adjusted by means of the abutment screw 9.
Patent GB-367305-A (GB)
Title: Improvements in or relating to a method of vulcanizing rubber
IPC: C08J3/24
Filed: 1931-08-25
Abstract: Hard rubber is vulcanized by contact with an aqueous medium at approximately 100 DEG  C., the exposed surfaces being protected from direct contact with the medium by a covering of metal foil, which may be afterwards stripped off.  The composition preferably contains an ultra-accelerator.  The invention is particularly applicable to hard rubber linings for large tanks, which are vulcanized by filling the tank with boiling water.
Patent GB-1304810-A (GB)
IPC: G01B7/12
Filed: 1971-04-19
Abstract: 1304810 Measuring volume electrically JAROCINSKI ZAKLAD PRZEMYSLU MASEYNOWEGO LESNICTWA PRZEDSIEBIORSTWO PANSTWOWE 19 April 1971 [16 March 1970] 23971/71 Heading G1N [Also in Division G4] Apparatus for measuring the volume of a log 2 comprises a roller conveyer 3, a photo-electric sensor 8 for determining the length of the log by measuring the time taken for the log to be conveyed past a fixed point and producing a first  output signal proportional thereto, a controller 23 responsive to the signal for stopping the conveyer with the centre of the log aligned with a reference mark 12, and a device 14 for measuring the diameter of the centre of the log and producing a second output signal, the two  output signals being multiplied to determine the volume of the log. The sensor 8 controls a timing circuit 10 which feeds a signal to a counter 22 proportional to the length of the log. A second photo-electric sensor 9 detects the front of the log and after a time determined by the circuit 10, the controller 23 stops the conveyer with the centre of the log at the mark 12. A pneumatically operated probe 15 is then moved into contact with the log and adjusts the position of a sliding contact 21 on a resistor 20, wound such that the output current fed to the counter 22 is proportional to the square of the log diameter.
Patent GB-1152708-A (GB)
Title: Improvements in or relating to Semiconductor Devices.
IPC: H01L47/00
Filed: 1966-05-27
Abstract: 1,152,708. Semi-conductor devices. FUJITSU Ltd. 27 May, 1966 [27 May, 1965], No. 24049/66. Heading H1K. A Gunn effect device comprises a body of a III-V compound having two rectifying contacts and is biased to the punch through state. The rectifying contacts may comprise PN junctions, metal-semi-conductor barriers or heterojunctions. The thickness and impurity concentration of the body are selected so that when a suitable voltage is applied to the device the depletion layer of the rectifying contact which is reverse biased just reaches the second contact and the electric field reaches the value necessary for Gunn oscillations to occur. A further increase in the bias voltage results in carriers being injected into the body from the second contact either by reduction in height of the potential barrier or by reduction of the thickness of the barrier so that tunnelling occurs. The device then produces Gunn effect oscillations, the high field domain travelling through the body between the rectifying contacts. A NPN structure may be produced by first diffusing Zn into one face of an N-type GaAs body to form a P-type region and then diffusing Sn or Te into the same face to produce an N- type region. Alternatively, Sn may be diffused simultaneously into opposite faces of a P-type GaAs body, or a P-type layer followed by an N<SP>+</SP>-type layer may be epitaxially grown on an N-type GaAs substrate. Electrodes are applied to the N-type regions in each case. One or both of the rectifying contacts may comprise a Schottky barrier produced by evaporating Au on to the surface of an N-type GaAs body. The semi-conductor material may also be InP. The device may be incorporated in an integrated circuit.
Patent GB-501810-A (GB)
Title: Improvements in or relating to the production of flexible films or coatings of polymerised organic liquids
IPC: C08F20/12
Filed: 1937-09-02
Abstract: 501,810. Vinyl polymerization products. RENFREW, A., FREWGATES, W. E., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Sept. 2, 1937, No. 24056. 2 (iii)] Emulsions from which continuous films arc obtainable by evaporat ion are prepared by subjecting an aqueous emulsion of methyl methacrylate to polymerizing conditions, i.e. to the action of heat, light, or polymerization catalysts, or to two or more of these agencies, with the introduction before, during, or after polymerization of 35- 80 per cent of a plasticizer or softening agent reckoned upon the combined weights of the polymerized methyl methacrylate and the plasticizer. Emulsifying agents, colouring materials, fillers and thickening agents, e.g. sodium alginate, a water-soluble cellulose ether, or gum tragacanth, may be present. A small quantity of a water-miscible swelling agent, e.g. methyl alcohol, may be added to the ester before polymerization. Specified plasticizers are dibutyl phthalate, dibutyl tartrate, tricresyl phosphate, triphenyl phosphate, benzyl benzoate, amyl stearate, glycerol tribenzoate, triacetin camphor and alpha-gammadicresyl ether of glycerin. In an example, a hot solution of sodium isobutyl naphthalene sulphonate is added to a solution of dibutyl phthalate and benzoyl peroxide in methyl methacrylate and the mixture heated under reflux. The emulsions may be used for the preparation of films, the treatment and bending of textiles, the dressing of leather, paper and wood, the coating of metal, and the preparation of water paints. Specifications 358,534 and 437,446 are referred to. According to the Provisional Specification, esters in general of methacrylic acid are used, and the proportion of plasticizer is at least 40 per-cent-reckoned on the weight of the ester.
Patent GB-282892-A (GB)
Title: Improved process for vulcanizing rubber
IPC: C08K5/20
Filed: 1926-09-30
Abstract: 282,892. Carpmael, W., (I. G. Farbenindustrie Akt.-Ges.). Sept. 30, 1926. Vulcanizing-compositions.-Formamide is used as a vulcanization accelerator. According to an example, 100 parts of rubber, 10 parts of zinc white, 5 parts of sulphur, and 1.5 parts of formamide are vulcanized for 50 min. at 140‹ C.
Patent GB-425003-A (GB)
Title: Improvements in or relating to forging apparatus
IPC: B21K1/64
Filed: 1934-08-22
Abstract: 425,003. Forging pipe couplings, nuts, &c. JACKSON, L. MELLERSH-, 28, Southampton Buildings, Chancery Lane, London.-(Pittsburgh Pipe & Coupling Co. ; Allison Park, Pennsylvania, U.S.A.) Aug. 22, 1934, No. 24255. [Class 83 (iv)] In the production of blanks for pipe couplings, nuts, &c. a single operation of the apparatus takes bar stock, upsets the end in a die by means of a sleeve co-operating with a punch sliding therein, and, by a movement of the punch through the upset blank, forms the cavity and pushes the stock rearwardly to shear the blank. As shown, the rod 22 to be operated on is held by grippers 24 during the forging operation, and semicircular dies 20, 21, of which one is fixed, co-operate with an upsetting sleeve 31 through which slides a punch 32. The punch and sleeve reciprocate together closing the cavity, and the continued movement of the punch removes the core of the blank, the grippers being rendered inactive so that the stock is pushed rearwardly.
Patent GB-259234-A (GB)
Title: Improvements in electric remote control systems
IPC: H04B1/16
Filed: 1926-10-01
Abstract: 259,234. British Thomson-Houston Co., Ltd., (Assignees of Alexanderson, E. F. W.). Oct. 1, 1925, [Convention date]. Switching systems.-A vapour device, for example a vapour rectifier, is provided with auxiliary electrodes for controlling its conductance, and impulses of predetermined frequency from a remote station are selectively utilized for impressing a controlling potential on the auxiliary electrodes. As shown in Fig. 1, the vapour device comprises a full-wave rectifier for converting alternating current in the mains 1 into continuous current in the circuit 2. The secondary coil of a transformer 4 has its ends connected to the anodes 7 of the rectifier 3, and the output leads 2 are connected respectively to the cathode 8 and the mid-point 6 of the transformer secondary. Exciting electrodes 9 are connected to the. ends of the secondary coil of an auxiliary transformer 11, which has its mid-point connected to the cathode 8. An auxiliary mercury electrode 19 serves for initiating the operation of the device. The rectifier is controlled by a circuit 20 which is connected on one side to the cathode 8 and on the other side through resistances 14 to the two control electrodes 12 in parallel. When the alternating voltages in the circuit 20 render the control electrodes 12 positive, the rectifier is operative. The voltages in the circuit 20 may be supplied from a receiving aerial 13 through a tuned detector 15 and lowfrequency amplifiers 16, 17 which transmit the modulation of the received wave to the circuit 20. A plurality of devices may be selectively controlled by employing different frequencies.
Patent GB-1204011-A (GB)
Title: Apparatus for monitoring pulses
IPC: G21C17/10
Filed: 1968-05-22
Abstract: 1,204,011. Pulse rate counting. GULF GENERAL ATOMIC Inc. 22 May, 1968 [31 May, 1967], No. 24336/68. Heading H3A. Apparatus for producing an output signal generally proportional to the log of the average rate of random pulses comprises a linear detector for producing an output signal representative of the r.m.s. amplitude of the random pulses and a log amplifier for producing a signal representative of the log of the output of the linear detector. In an embodiment comprising an arrangement for monitoring neutron flux, fission chamber 11 feeds pulses over capacitor 16 to a broad band A.C. amplifier 17 which feeds into two channels 19, 20 respectively. Channel 19 is used to produce a signal proportional to the log of the average rate of the pulses for low rates, and comprises a high frequency band pass amplifier 21 passing components due to electroncollection and feeding into a log count rate circuit 23. The output is fed to resistor 45 via ganged adjustable series resistors 31, 37 which permit of adjustment of the slope of the output voltage/average pulse rate curve. Shunt diode 37 which is provided with an adjustable bias from potentiometer 39 limits the output at rates above that for which the log count rate circuit is linear. Channel 20 is used for higher rates: it comprises a low frequency band pass amplifier passing components due to positive ion collection 47 feeding into a linear detector including amplifier 55 diodes 57, 59 and feedback resistor 61, producing an output which is fed via a low-pass filter comprising resistor 63 and capacitor 65 to a log amplifier. The log amplifier comprises an operational amplifier 69 with feedback over a diode chain 71; the temperaturedependent offset voltage produced by diodes 71 is compensated in a differential amplifier 75, by means of a further diode chain 73 and has source 77 and resistor 79. The output from second channel 20, at levels greater than those passed by channel 19 is fed via diode 87 and slope-setting resistor 89 to the resistor 45. The combined output across resistor 45 is fed via in-phase D.C. amplifier 93 to the output terminal 99.
Patent GB-642958-A (GB)
Title: Improvements in plate-straining mechanism for use in printing machines
IPC: B41F27/12
Filed: 1947-09-03
Abstract: 642,958. Printing-surfaces. HOE & CRABTREE, Ltd., R., and SEED, L. C. Sept. 3, 1947, No. 24357. Addition to 635,628. [Class 100 (ii)] For use with a flexible printing plate having bars secured to its undersurface at its end regions, a cylinder is formed with a longitudinal slot to receive the bars and there are disposed in the slot guide components having guide surfaces to co-operate with corresponding surfaces on the bars, the guide surfaces on the guide components extending transversely of the cylinder to enable the bars t be moved longitudinally in the slot to carry their surfaces into co-operation with those on the components, there being also provided in the slot components to apply pressure to the bars and operating devices to move the pressure components towards one another. The plate 10, Fig. 4, has secured at or near its ends bars 11, 12 having spaced along them bayonet slots 13 forming ribs 14, Figs.. 2 and 4. On inserting the bars into a slot 4 in the cylinder 1 until they rest on guide blocks 8 and supporting blocks 29 spaced alternately along an enlargement 5 of the slot, and then moving the bars longitudinally, the ribs 14 engage in grooves 9 in the blocks 8, releasable or detachable members 28 then being fitted to the cylinder to prevent further longitudinal movement. The blocks 29 have central axial ribs between the bars 11, 12 to position them centrally of the slot. On alternate sides of the slot spaced therealong are pressure components 16, Figs. 2, 4 and 10, each' abutting one of the bars and having a flange 19 with a slot 20 to engage one of a series of operating screws 22 having flanges 24, 25 to engage the flange 19 and passing into a plug 23 in the cylinder. The bars 11, 12 are recessed at 27 to admit a key. Each component 16 extends between a block 8 and a block 29, being cut away at 6<SP>1</SP> to fit on to the blocks. The components 16 are spaced more closely at the ends of the cylinder, and at the extreme ends are opposed to each other. On turning the screws 22, the components 16 are raised, and since they abut slanting surfaces 6, 7 of the slot 4 they are forced together, causing the bars 11, 12. to approach each other, by sliding in the grooves 9 and tilting slightly about the axial ribs so as to strain the plate about the cylinder. The engaging surfaces of the bars 11, 12 and the blocks 8, 29 can be flat, or parti-cylindrical centred about the axis of the cylinder.
Patent GB-724194-A (GB)
Title: Improvements in or relating to volumetric indicating and control devices
IPC: G01F23/60
Filed: 1951-10-19
Abstract: 724,194. Washing-machines. NEWBERY, S., and NEWBERY, Ltd., S. Dec. 24, 1952 [Oct. 19, 1951], No. 24473/51. Class 138 (2). [Also in Group XXXVIII] A liquid-level indicating or control device comprises a magnet 4 secured to a float 6, and arranged to actuate mechanically independent switches 8a, 8b, 8c ... &c. in succession as the liquid level changes. The switches are normally closed, and opened by magnetic attraction of their respective switch contacts 9 as the magnet 4 passes, but the switches may alternatively be closed selectively by the magnet 4. As shown, for an automatic washing machine, a control switch or timer 1 as disclosed in Specifications 568,732 or 722,902, [both in Group XXXVIII], comprises a contact 3 wiping over a parallel series of contacts 2 to energize control lines such as 13 at predetermined times. When line 13, e.g., is energized, a relay 12b is energized momentarily in series with the relay 14 controlling the filling valve whereby water is fed into the washer (assumed empty). The relay 12b is held over a locking circuit including the switch 8b which is opened by the magnet 4 as the water reaches the desired level to deenergize relay 14. The magnet 4 remains in this position until the timer 1 effects the next control. For indicating or recording liquid level, the switch contacts 8a, 8b ... &c. operate individual audible or visible signals or the stylus of a graphical recorder in known manner.
Patent GB-1495436-A (GB)
Title: Exercising apparatus
IPC: A63B22/02
Filed: 1975-06-07
Abstract: 1495436 Exercising apparatus D J GIBBS 10 May 1976 [7 June 1975] 24542/75 Heading A6M Exercising apparatus comprises a supporting framework including a platform 10 and handgrip means 12 for gripping by a person standing on the platform, the platform having a surface afforded by a multiplicity of independently rotatable rollers arranged in a plurality of rows with a plurality of rollers in each row the rollers being arranged for rotation about substantially horizontal axes. The inclination of the platform is preferably adjustable by means of a stepped base 11 and the hand-grip can be arranged either at one end as shown or may consist of two members, one on each side of the apparatus. Treads 21 may be provided at each end of the apparatus.
Patent GB-206482-A (GB)
Title: Improvements in paving blocks
IPC: E01C5/22
Filed: 1923-10-03
Abstract: 206,482. Fitte, L. Nov. 6, 1922, [Convention date]. Composite blocks.-Paving-blocks are formed in inverted position by disposing broken stones A of substantially pyramidal shape in a mould with their Ismaller faces downwards and filling in cement C until the stones are covered. The space above the cement is filled with concrete B, this part forming the base of the block when in position, so that the smaller sections of the large broken stones are at the top. The concrete B may be mixed with small broken stones. Each block may be coated with a layer D formed of a mixture of sand and tar. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the arrangement of the blocks in a road wherein three rows of blocks shaped as shown in Fig. 3 (Cancelled), are laid on each side of the road with their longitudinal axes parallel to the road axis, and the intermediate blocks are disposed at right angles to them. This subject-matter does not appear in the Specification as accepted.
Patent GB-393308-A (GB)
Title: Improvements in or relating to electric gaseous discharge lamps
IPC: H01J17/06
Filed: 1931-09-02
Abstract: 393,308. Discharge lamps. CLAUDELUMIERE, SOC. ANON. POUR LES APPLICATIONS DES GAZ RARES A LA LUMI’RE, PROC•D•S G: CLAUDE, 8, Rue Cognac Jay, Paris. Sept. 2, 1931, No. 24603. Convention date, Feb. 19. [Class 39 (i).] A lamp has a filling of rare gas and contains an open hollow electrode coated with a dielectric at the edge of its rim only. The coating 5 may be obtained by dipping the electrode 3, which is preferably cylindrical, into melted borax or enamel. The filling may consist of helium at a pressure of 2 mm. Specification 385,311 is referred to.
Patent GB-732842-A (GB)
Title: Improvements in wax-base polishes
IPC: C09G1/08
Filed: 1952-10-01
Abstract: A granular polish is formed by taking a mixture of wax or waxes and a solvent liquid, granulating the mixture and coating the granules with a finely powdered separating medium.  The term "solvent" includes the commonly used spirits or oils, in which the wax or waxes are soluble when in the liquid phase.  The amount used is preferably equal to that of the wax or waxes, and such that the product is not liquid or pasty at normal temperatures. The separating medium may be talc, french chalk, kaolin, whiting, pumice or the like.  The wax or waxes and the emulsifying liquid are blended with the aid of heat, and the resulting liquid either cast into blocks which are aged and hardened and then powdered using a rotary grater, or sprayed on to a cool surface or into a cool chamber, where it solidifies to form very small granules. The resultant material is then mixed with the separating medium in an agitator or tumbler.  The granulated polish may be applied from a container having a sprinkler top.  Compositions specified include mixtures of spirits or oils with montan wax alone or with various combinations of montan wax, synthetic (e.g. polyethylene glycol) wax, paraffin wax, beeswax, carnauba wax, ouricury wax, chinaberry wax, spermaceti, or esparto wax.
Patent GB-763951-A (GB)
Title: Improvements in or relating to electron gun structures
Inventor: FREEMAN GEORGE STANLEY PERCIVA
IPC: H01J3/02
Filed: 1953-09-07
Abstract: 763,951. Cathode-ray tubes. CINEMATELEVISION, Ltd. Sept. 7, 1954 [Sept. 7, 1953], No. 24688/53. Class 39(1). The gun of a cathoderay tube comprises a metal cylinder 15 housing a cathode-modulator sub-assembly 10, 3 which is located within 15 by insulating spacer 16 and spaced from the first anode 5 by insulating spacer 18, the first anode 5 is in direct conductive contact with cylinder 15 through metal cup 17 and the second anode 8 is held within and spaced from cylinder 15 by insulating spacer 23. In assembly metal cups 7, 20 are inserted into metal cylinder 15 and pressed against metal cup 17 by insulator 23 carrying second anode 8, after which the device is mounted in a lathe and end 25 is spun or crimped over. Insulators 16, 18 are now inserted into the other end of 15 followed by insertion of the complete modulator and cathode assembly. Finally insulator 26 and ring 27 are inserted and 27 is welded to 15. The indirectly heated cathode 10 is welded to cup 1 and is expanded at 11 to grip cathode insulator 9. The sleeve 12 carries clips 14 which engage sleeve 13 ; it is accurately located within modulator 3 by the method described in Specification 763, 952. The cathode and modulator electrodes are accurately located with respect to the first anode 5 and to metal cylinder 15 by insulators 16, 18, 26. First anode 5 protrudes from cup 17 towards modulator 3 by an accurately determined distance and is attached to cup 17 by flanged collar 19. The remote end of first anode 5 is carried by cup 20 and is followed by cup 7 having a beam limiting aperture 6 ; holes 21, 22 facilitate evacuation. In an alternative construction member 27 projects beyond cylinder 15 and metal strips are secured to 15 and folded over 27. This allows the cathode-modulator sub-assembly to be withdrawn from cylinder 15 for re-baking if necessary.