baber/WOPTO huggingface dataset:
Patent GB-518707-A (GB)
Title: Improvements in or relating to fixing hollow rivets or the like
IPC: B21J15/04
Filed: 1939-05-23
Abstract: 518,707. Setting tubular rivets. SOC. d'EXPLOITATION de BREVETS & LICENCES POUR APPLICATIONS MECANIQUES. May 23, 1939, No. 15284. Convention date, Feb. 28. [Class 43] A process for fixing hollow rivets by opposite riveting tools in which each rivet or element is threaded on a spindle is characterized in that relative movement of the spindle with the other tools is effected to prevent shock to the spindle. A tool 2, Fig. 1, is at the top of its stroke and an adjustable stop 9 is in contact with a shoulder 7 on a sliding spindle carrier 3a. The end 4 of a spindle 3 projects from the tool 2 a distance a. A distributor 20 is in the feeding position and a rivet 21 lies a short distance from the spindle 3. The tool 2 and its carrier 2a descend towards a fixed lower tool 1 carrying the spindle 3 owing to the pressure of a spring pin 16 pressing on the part 3a. No sliding of the spindle 3 on the tool 2 takes place before the spindle engages the rivet 21. The tool 2 continues to descend and as soon as the spindle 3 engages the rivet 21 and distributor 20 it can no longer follow the upper tool but slides therein and does not project more . than a small distance, less than a, when the engaged rivet leaves the distributor 20. The tool 2 carries the spindle 3 with it towards the tool 1. If the work has been previously pierced, the operator preferably raises it until the socket of the rivet is engaged in the hole, the rivet being rendered stationary by means of a stop as described in Specification 479,796. During subsequent downward movement of the tool 2, a shoulder 6 on the spindle carrier 3a contacts with a stop 8 preventing downward movement of the spindle 3. The distance between the end 4 and a point 25 on the lower tool is small and less than the length of the rivet which is still held. Riveting is completed without contact between the spindle 3 and the point 25. The upper tool 2 then moves upwards and the spindle 3 until the shoulder 7 contacts with the stop 9. In a modification, Fig. 3, for fixing two-piece rivets a movable stop is used controlled by the movement of the opposite tool. A lever 79 is pivoted at 80 and co-operates with a shoulder 84 on a spindle carrier 68a similar to the previous carrier 3a, Fig. 1. The other end 90 of the lever 79 has a connecting rod 91 pivoted to a lever 93 connected as shown to a sliding lower tool carrier 72a on which the lower tool 72 is fixed. This machine functions in practically the same manner as the first.
Patent GB-771452-A (GB)
Title: Improvements in or relating to cathode ray tubes
IPC: H01J29/18
Filed: 1954-05-24
Abstract: 771,452. Cathode-ray tubes. ABBEY, A. (American Optical Co.). May 24, 1954, No. 15294/54. Class 39(1). Light reflections at a cathode-ray tube face are reduced by providing an inner light diffusing layer 14 between the glass and the fluorescent layer 13, and an outer layer 15 of optical thickness <#>/4 and refractive index approaching #Á, where # is the wavelength of incident light e.g. 5,500A and Á is the refractive index of the glass. Layer 14 may be particulate or formed by grinding, sand blasting or acid etching. Layer 15 may consist of a film of silicic acid, barium stearate, lithium fluoride, magnesium fluoride, calcium fluoride, sodium fluoride, or sodium aluminium fluoride, or of minute irregularities, giving an effective refractive index varying from 1 at the air interface to Á at the glass, formed from a colloidal suspension of silica, magnesium fluoride, lithium fluoride, strontium fluoride, calcium fluoride, barium fluoride or cryolite. Tetraetchylorthosilicate may be added to obtain a layer more resistant to abrasion. Specifications 594,524 (Group XX) and 604,414 [Group III] are referred to. Reference has been directed by the Comptroller to Specification 717,057.
Patent GB-331639-A (GB)
Title: Improvements in and relating to valve amplifying apparatus for use with loud speakers
IPC: H04B1/16
Filed: 1929-05-16
Abstract: 331,639. Graham Amplion, Ltd., Phillips, C. F., and Elford, E. N. May 16,1929. Systems for transmitting music &c.-A plurality of final stage power amplifiers 1, 1<a> each operating a separate loud-speaker and each complete with its own power transformers 6, 8 anode rectifier 15 and grid bias rectifier and filter 11, are connected to a previous amplifier 2 by variable tappings on a resistance potentiometer 20. The grid biasing resistances 11<c> of the power stages are therefore in parallel, but interference with other amplifiers when one is switched off is prevented by linked switches 4a, 4b, which control the energy supply and grid circuit simultaneously, the switch 4<a> controlling the supply both to the valve power transformer 6 and the loudspeaker transformer 8.
Patent GB-320095-A (GB)
Title: Improved horn or amplifier for gramophones and loud speakers
IPC: G10K13/00
Filed: 1928-04-05
Abstract: 320,095. Fuller, C. W. N. April 5, 1928. Cases with internal horns.-A large compact horn for gramophones, loud-speakers, &c., expanding in accordance with the exponential law or otherwise, is formed with successive, sections folded in reverse, the one within the other, along a common axis, and has two successive conoidal deflectors at the ends of the sections, and only one bend exceeding 45 degrees. As shown applied to a gramophone, the horn comprises an inclined throat section a passing through the deflector 15, an intermediate section b terminating at the conoidal deflector 6, and a reversed section c extending to the horn mouth and including the terminal conoidal deflector 15 which forms a housing, for the motor 26. The horn is built into a square cabinet having hinged flaps 19 for closing the outlet. These flaps when opened, as shown in Fig. 2, form part of the flare, the corner spaces between them being filled by spring hinged quad rants 21.
Patent GB-1108445-A (GB)
Title: Improvements in and relating to the preparation of synthetic diamond
IPC: B01J3/06
Filed: 1965-04-12
Abstract: Diamond is produced by passing a direct electric current through a mass of raw material, which comprises raw carbon and a catalyst, while maintaining the system at 1000-2000 DEG  C. and 50,000-100,000 kg./cm.2 pressure, the flow of the electric current being reversed to effect  a second synthesising stage under similar conditions.  The pressure may be increased by about 5000 kg./cm.2 after the first stage to inhibit transformation of diamond back to carbon during the second stage. The heating can be entirely by passage of the direct current through the material but may, in part, be by passage of a direct or alternating current through a heating resistance surrounding the raw material.  The first stage may, for example, be carried out under a pressure of 65,000 kg./cm2. at a temperature of 1500 DEG  C. with the pressure being increased to 70,000 kg./cm.2 upon reversal of the current for the second stage.
Patent GB-1040504-A (GB)
Title: Improvements in patterning mechanism for circular knitting machines
Inventor: SAUNDERS ALFRED PERCY
IPC: D04B15/74
Filed: 1964-04-15
Abstract: 1,040,504. Knitting-machines. WILDT MELLOR BROMLEY Ltd. April 15 1965 [April 15, 1964], No. 15568/64. Heading D1C The pins 9 of a pattern pin drum are retained in the drum by rods 24 which extend parallel to the axis of the drum and between vertical rows of pins to engage in annular grooves 9a formed in the portion of the pins extending inwardly of the drum. The rods are formed with parallel flats 24a such that when the rods are turned to bring the flats into register with the grooves the associated pins can be removed or replaced. The drum is secured in position by a bolt 19, Fig. 1, not shown, securing it to a base 13 by means of a nut 28 which is axially movable but non rotatable so that when the bolt is undone it releases the nut whereby the bolt is withdrawn and the drum can be removed transversely from the machine.
Patent GB-259875-A (GB)
Title: Improvements in and relating to shock damping devices for motor-cars
IPC: B60G11/02
Filed: 1926-06-21
Abstract: 259,875. Koppenhague, R. A. June 21, 1926. Addition to 245,699. Springs, arrangement of.-The shock absorbing device for front transverse suspension springs of motor vehicles described in the parent Specification is modified mainly by mounting the substantially horizontal spring blades longitudinally on the frame and connecting the substantially vertical spring blades to the axle. The arrangement described corresponds more particularly to the device shown in Fig. 4 of the parent Specification. The substantially horizontal spring blades comprise blades 6, 14 anchored at one end to a plate 15 on the frame, and a superposed blade 3 connected at one end to a pin 8 which is carried by the upper end of a substantially vertical spring blade 1 carried by a bolt 2 secured to a bracket 5 on the axle 17. The other ends of the blades 3 and 14 are carried on the upper and lower bolts 10, 13 of a shackle 11 through which the blade 6 passes and extends almost to the pin 8. A clip 16 limits the separation of the blades 3, 6.
Patent GB-476426-A (GB)
Title: Improved treatment of polyvinyl alcohols or their partial derivatives
IPC: C08K3/11
Filed: 1936-06-04
Abstract: The viscosity and/or stability to water of polyvinyl alcohols or their partial esters, acetals or ethers, or of moulded objects, other than printing surfaces, of such materials is increased by treatment with a solution of a chromium or an iron compound, with the application of other influences if desired, such as a thermal or photo-chemical treatment, the conditions of treatment being such that the mechanical properties of the polyvinyl compound are not damaged. Suitable iron or chromium compounds include ferric chloride, chromates and chromic acid.  In examples: (1) a film made from polyvinyl alcohol or a water - soluble derivative thereof is treated with a potassium bichromate solution, washed and exposed to sunlight; (2) a hose pipe made of a material containing 25 per cent of polyvinyl alcohol is immersed in boiling water and then treated with aqueous chromic acid; (3) an aqueous solution of polyvinyl alcohol is thickened by treatment with aqueous ferric chloride.  Specification 451,009 is referred to. p   The Specification as open to inspection under Sect. 91 refers to treatment with metal compounds in general. This subject-matter does not appear in the Specification as accepted.
Patent GB-1422270-A (GB)
Title: Developer composition for a high contrast diffusion-transfer material
IPC: G03C8/06
Filed: 1973-04-02
Abstract: 1422270 Photographic diffusion transfer developer composition FUJI PHOTO FILM CO Ltd 2 April 1973 [1 April 1972] 15771/73 Heading G2C A photographic silver salt diffusion transfer developer composition for a graphic arts high contrast diffusion transfer material comprises (i) a silver halide developing agent, e.g. a pyrazolidone and/or an aminophenol with a hydroquinone or catechol; (ii) a silver halide solvent, e.g. sodium thiosulphate; (iii) an alkaline agent; (iv) at least one compound or salt thereof selected from cyclohexylamine, 2-amino-2-methyl-1:3-propanediol or compounds of the following Formulae I(a), I(b) and I(c):- where X<SP>1</SP> = H, OH, COOH or NH2, n = O or 1-12 provided that when n = 0, X<SP>1</SP> is OH, i.e. the compound hydroxylamine, wherein X<SP>2</SP> and X<SP>3</SP> are each H, COOH, OH or NH 2  and q and m are each 1-12, or X<SP>2</SP> is phenyl X<SP>3</SP> is H and q and m are both 1, i.e. N-methylbenzylamine wherein X is O, CH 2  or NR<SP>2</SP>, R<SP>1</SP> and R<SP>2</SP> each being H, alkyl, substituted alkyl or acyl and p being 2 or 3, said compound or salt thereof being soluble in an aqueous alkaline medium; and (v) at least one imidazole compound, or a quaternary salt thereof, of the Formula:- wherein R<SP>1</SP> is H, alkyl, substituted alkyl, vinyl or allyl, R<SP>2</SP> and R<SP>4</SP> are each H, alkyl or substituted alkyl and R<SP>3</SP> is H or alkyl, said imidazole or salt thereof being soluble in an aqueous alkaline medium. The composition may be in the form of working developer solution, a concentrate in an organic solvent, a viscous developer or a powdered developer.
Patent GB-693763-A (GB)
Title: Roller draught excluder
IPC: E06B7/18
Filed: 1952-02-23
Abstract: 693,763. Draught excluders. SIDNEY, S. Feb. 23, 1952, No. 15826/50. Class 20(iii) A draught excluder for a swing door comprises a roller 6 supported along the lower edge of the door by a pair of bracket plates 9 each having a downwardly and inwardly inclined slot 11 accommodating spindles 7 protruding from the roller ends, the spindles being urged towards the lower end of the slots by studs 12 which are pressed downwardly by springs 13 adjustable by means of grub screws 14. The outer side of the slots is closed by flanges 16 of nuts 17 engaging the threaded end of the spindles. The roller may be of wood, plastic or metal, and solid or hollow. It may be tapered to compensate for inequalities in the arcuate movement of the door.
Patent GB-364497-A (GB)
Title: A device for carrying portable stoves and the like on bicycles
IPC: B62J11/00
Filed: 1931-05-30
Abstract: 364,497. Luggage attachments. DUNN, G. G., 534, Rutherglen Road, Glasgow. May 30, 1931, No. 15851. [Class 136 (i).] A device for carrying portable stoves or like light articles on bicycles comprises means adapted to engage both the top tube or other frame member of the bicycle and the stove &c., and provided with a single nut or other fastening , element adapted also to lock the stove &c. securely in position. The device comprises an S-shaped member c, d having one end d fitting into a socket e of the stove, and a second curved member a of looped or hairpin formation, of which the closed end is adapted to be passed over the screw-threaded upper end c of the first member, the parts being clamped around a frame tube f by means of a wing-nut h and a washer j, with the lower;end b of the member a engaging the base g of the stove. The end d is flattened &c. to fit the socket e. Each member is made from a single length of brass &c. wire or strip. In a modification, the two members are pivoted together.
Patent GB-379676-A (GB)
Title: Improvements in and relating to crane structures, ships' davits and similar lifting gear
IPC: B63B23/08
Filed: 1931-05-30
Abstract: 379,676. Davits. BURRILL, L. C., BOCLER, H., and HUNTER, N. M., Wallsend Shipyard, Wallsend-on-Tyne. May 30, 1931, No. 15893. [Class 115.] A ship's davit comprising a pivoted strut a and rocking lever f is swung by a rigid or flexible extensible operating member m, m<1>, or m<2> connected to the inner end of the member f and to a stationary anchorage p, Fig. 1, or to the end of a crank arm n<4>, Fig. 5, or wound on the barrel of a winch, or as shown in Fig. 3 the operating member m<1> may be a rack held in engagement with a pinion n<1>. When the strut is arranged to swing inboard beyond the heel pivot, the movement may be limited by a link q, Fig. 1, or by a chock q<1>, Fig. 3, on the lever f engaging the strut a, or by a tie-rope q<2>, Fig. 5. The member m, Fig. 1, is a screwed rod working in a worm-wheel nut and a sheath k charged with lubricant. The members m, k may be interchanged, and the operating pinions n for the two davits of a pair may be coupled together. The sheave g at the outer end of the lever f tends to rise when strut a is first swung to the left so as to lift a boat off the chocks v, and the weight of the parts in the outboard position tends to raise the sheave g so that the gear automatically takes up slack when the boat is water-borne. To permit this movement in Fig. 1, the lower eye r of the link q is oval. The device may be mounted on a pivoted base or on straight or curved runways.
Patent GB-498670-A (GB)
Title: Improvements in or relating to tracks and vehicles therefor, particularly for use as toys
IPC: A63H18/02
Filed: 1937-06-08
Abstract: 498,670. Rope railways. FLINN, H. V. June 8, 1937, No. 15907. [Class 104 (ii)] A railway suitable for use as a toy comprises a mono-rail track consisting mainly of a tensioned wire or cable 6, 7, and one or more connecting devices, such as points 10 and crossings 11 supported by the tensioned track. The track may be a closed loop, formed by the wires 6, 7 and rigid end supports 4, 5 with vertical flanges 8 forming the ends of the track. Within the closed loop may be arranged a cross rail 9 and a smaller loop, formed by wires 7, 12 and rigid end pieces 13, 14 supported from the main ends 4, 5 by bridge members 15. One of the end supports 4, 5 may be pivoted about the longitudinal axis of the loop so that by tilting it, the vehicle 1 may be made to run by gravity. Or the vehicle may be propelled by a motor thereon driving one or more of the pulleys 2, 3 and drawing electric current from the electrified wire 18 through a trolly 19, the return circuit being through the track. Alternatively, a dual conductor such as that described in Specification 493,132 may be used. A doublepoint device 61 may be provided for sidetracking and reversing the vehicle on the main track. The end pieces 4, 5 may be replaced by four or more corner pieces.
Patent GB-476572-A (GB)
Title: Improvements in and relating to flexible supports for use in building structures
IPC: E04F15/20
Filed: 1936-06-09
Abstract: 476,572. Securing joists to floors. BOLTON, J. F., and BIRCH, A. June 9, 1936, No. 16073. [Class 20 (iv)] A wood floor-joist 6 is supported above a concrete floor 7 by means of a rubber block 8 which is provided with means projecting above the block for securing it to the joist, and is formed with an outwardly inclined foot 9 adapted to be received in a correspondingly-shaped recess in the floor. The block 8, which may be of rectangular or circular shape in plan, is fitted at its top with a metal cradle 10 for receiving, and being attached by nails to the joist. The cradle rests upon the block 8 and is provided with inturned tongues 12 entering slots in the block 8. If desired, the cradle 10 may be dispensed with, and the joist secured to the block 8 by nails, bolts or screws passing through holes in the block, and such holes, which have enlarged lower portions to accommodate the heads of the securing members, may extend completely through the block or only for a short distance from the upper face thereof. The recess in the concrete floor to receive the foot 9 of the block 8 is formed, during casting the floor, by means of a metal or other tray 13 which forms a permanent lining for the recess. The foot 9 of the block is provided with holes or slots 14 to enable the foot to be compressed and inserted in the tray 13. Specification 466,306 is referred to.
Patent GB-315957-A (GB)
Title: Improvements relating to signalling lamps
IPC: B64F1/20
Filed: 1928-06-02
Abstract: 315,957. Diersburg. K. F. R. von. June 2, 1928. Lamp signals.-A signalling device for use in aerodromes &c. comprises a horizontal rail a on which can be grouped in various manners a number of upwardlyfacing lamps d. Each lamp is mounted on a bent bracket c, e and counter-balanced by a weight g. A roller b on the horizontal part of the bracket runs on the rail a. Reference has been directed by the Comptroller to Specifications 21379/93 and 5971/94, [both in Class 39, Electric lamps &c.].
Patent GB-594443-A (GB)
Title: Improved process for the electrolysis of sodium sulphate
IPC: C01B17/90
Filed: 1945-06-25
Abstract: Mercury for use as cathode in the electrolysis of sodium sulphate solution is freed from metallic impurities by passing it in a fine rain through a column containing diluted nitric acid, by distillation or by agitation in the presence of sodium cyanide and sodium peroxide.  In the electrolysis process anodes of lead alloyed with 12-15 per cent of antimony are used.
Patent GB-153051-A (GB)
Title: Improvements in or relating to the manufacture of water gas
IPC: C10J3/00
Filed: 1919-06-28
Abstract: 153,051. Meade, A. June 28, 1919. Producers. - The steam supply to a water-gas generator is governed in accordance with the temperature of the fuel-bed by a valve actuated by the pressure of the gas leaving the generator. A casing e contains a diaphragm d connected by a rod c and lever b with a valve a' in the steam-pipe a. The upper compartment in the casing is open to the atmosphere and the lower one is connected by a pipe g to the gas outlet pipe of the generator. Upon a fall of pressure in the generator, the dia. phragm d, which is loaded by weights at d<2> and h<1>, falls and tends to close the valve a<1>. Springs may be used instead of the weights to control the movement of the diaphragm.
Patent GB-585728-A (GB)
Title: Improvements in or relating to the recovery of bromine from hydrogen bromide
IPC: C01B7/09
Filed: 1944-08-29
Abstract: Hydrogen bromide mixed with an oxygen-containing gas in a volume ratio of oxygen to hydrogen bromide exceeding one to four is passed through a reactor at 800-1200 DEG C. and preferably at 800-1000 DEG C. to recover bromine.  The excess oxygen-containing gas preferably suffices to absorb the heat of reaction.  An oxidation catalyst, e.g., cerium oxide on refractory support, e.g., pumice or silica may be used.  In the presence of, e.g., excessive diluent steam, the reaction temperature may be maintained by an admixture of combustible gas, e.g., hydrogen.  Residual oxygen gases after bromine removal may be recycled to the reactor to maintain a 4 to 5 times excess.  As shown the gas mixture catalysed in the reactor 1 and cooled by a water spray in the cooler 7, passes to the condenser 10 and scrubber 12 where it is scrubbed by, e.g., sodium bromide solution.  Gas discharged at 13 is recycled to the reactor.  The condenser and scrubber condensates are stripped of bromine in the fractionating column 11 and the <PICT:0585728/III/1> bromide liquor recycled to the scrubber.  The bromine passes to a condenser 17 and separator 18, the liquid bromine being removed and the bromine water recycled to the spray cooler 7.  Unreacted hydrogen bromide in the effluent reactor gas is converted to bromine by adding chlorine at 20.  The Provisional Specification discloses the use of a 700-1200 DEG C. temperature range.  U.S.A. Specification 2,163,877 is referred to.
Patent GB-1433647-A (GB)
Title: Plant growth regulators
Filed: 1973-06-27
Abstract: 1433647 Plant growth regulation ALLIED CHEMICAL CORP 27 June 1973 [29 June 1972 29 Dec 1972] 16396/74 Divided out of 1397722 Heading C1B A method of regulating plant growth comprises applying to a plant between early flowering and early maturation of the fruit, a specified saturated or unsaturated dicarboxylate or an anhydride, imide, N-haloimide or N-alkylimide thereof. In examples the compounds used are dibenzyl succinate, calcium malonate, N-ethyl maleimide and N-bromosuccinimide. Plants specified are legumes and soybean plants. Compositions for use in the method also are claimed
Patent GB-151115-A (GB)
Title: Improvements in wireless transmitting and receiving apparatus for use on aircraft
IPC: H01Q1/28
Filed: 1919-07-02
Abstract: 151,115. McDougald, L. A., and Poyntz, J. M. July 2, 1919. Wireless aeronautic signals; aerials.-An openended aerial consists of a wire or wires supported on or immediately above or below, or inside, the planes, fuselage, or other part of an aircraft. One terminal of the transmitting or receiving apparatus 7 is connected to a wire 1 which extends symmetrically to the upper and lower planes on each side, while the other terminal is connected to wires 4 on each side of the fuselage. The ends of the aerial wires are insulated by ebonite caps fitting over the rubber insulation.