baber/WOPTO huggingface dataset:
Patent GB-515398-A (GB)
Title: Improvements in and relating to the operation of blast furnaces
IPC: C21B5/02
Filed: 1938-02-19
Abstract: 515,398. Iron manufacture ; alloys. HORNEMANN, K. Feb. 19, 1938, No. 5290. Void. Convention date, Feb. 20, 1937. [Classes 72 and 82 (i)] Reagents such as lime or soda or alloying additions such as manganese, chromium, molybdenum, titanium, or vanadium, are added to pig iron in a blast furnace by introducing them, after removal of all or part of the slag, into the lower part of the furnace either through the charging opening or by blowing them in or both. After the addition, the furnace may be operated slowly or intermittently.
Patent GB-221467-A (GB)
Title: Improvements in self-propelled vehicles
IPC: B62D55/04
Filed: 1924-03-01
Abstract: 221,467. Renault, L. Sept. 5,1923, [Convention date]. Addition to 216,100. Endless-track vehicles.-The endless-track 12 of the parent Specification is reduced so that it no longer covers the tyres 10 of the wheels, but fits exactly in between the tread bands of a set of twin tyres, the back and the heads of the tyres thus presenting a continuous wide supporting surface.
Patent GB-114434-A (GB)
Title: Improvements in and relating to Tongs for Polishing Diamonds and other Precious and Semi-precious Stones.
Inventor: MOZES SALOMONS
IPC: B24B9/16
Filed: 1918-03-27
Abstract: 114,434. Salomons, M. March 27, 1917, [Convention date]. Void [Published under Sect. 91 of the Act]. Gems, treating; work-holders.-Consists of a tool for holding diamonds &c. during polishing. The diamond is secured in a dop g, which is screwed upon the end of a stem a passing through a ball h seated in recesses in the main part b of the tool and in the part c. The part c fits over a tongue d on the part b and is clamped thereto by a screw e. The ball is turned in its seats to present the various facets for polishing. The dop may be changed by unscrewing the stem from the ball.
Patent GB-906699-A (GB)
Title: Wear resistant steel
IPC: C22C38/22
Filed: 1959-02-17
Abstract: 906,699. Alloy steel. CARPENTER STEEL CO. Feb. 17, 1959 [Feb. 20, 1958], No. 5452/59. Classes 72 and 82 (1). A low alloy steel which can be oil or air hardened to a minimum hardness of R c  60 contains in percentage by weight: C - - - - - 1.1-2.5 W - - - - - 1.2-10 Mn - - - - - 1-2.75 *Cr - - - - - 0.05-1.8 *Mo - - - - - 0.05-1.5 Cu - - - - - 0-3 Fe - - - - - balance * Cr and Mo not less than 1 The C and W contents being such as to be above curve X in the accompanying drawing. Silicon if present in the alloy should not exceed 1%. Hardening is carried out from 1450- 1650  F., followed by tempering at 300-350  F. Use of the alloy for tools and dies is referred to.
Patent GB-565406-A (GB)
Title: Improvements in hypodermic or like syringes
IPC: A61M5/20
Filed: 1943-05-06
Abstract: 565,406. Hypodermic syringes &c. WEEKS, A., and BEASLEY, H. H. May 6, 1943, No. 5470. [Class 81 (ii)] A hypodermic syringe &c. for ejecting an accurately measured predetermined quantity of liquid, is characterised by the provision therewith of a flexible or resilient refillable reservoir 1, having a capacity several times the volume of liquid to be discharged at each operation, and means to discharge the contents of the reservoir through the needle &c. in a succession of operations, each delivering a predetermined quantity of liquid. The flexible reservoir 1 is air-tight and of rubber &c., and furnished with rings 2, 3 engaging respectively on a boss 6 on a base member 4 and in a groove 5a in a sleeve 5. The reservoir may be filled through a hole 16 closed by a plug 17, the head of which is situated within a dished portion 18 of the base 4. Attached to the base 4 is a stem 7 formed with a plunger portion 7a and bored axially at 9, the bore 9 being connected by a port 8 with the inside of the reservoir 1 when the sleeve 5 is pulled outwardly and the syringe is inverted so that liquid may flow into the space between the end of the plunger 7a and the inner end of the sleeve 5. A passage 10 communicates with the needle 13 through a non-return valve 15 of the kind used on the inner tubes of cycle tyres. The passage 9 is coned at 7b so that the liquid will flow smoothly towards the needle when the sleeve 5 is pressed inwardly. Circumferential grooves 5b enable the sleeve 5 to be gripped when it is desired to pull it outwardly. A rigid housing 14 screwed on to the base member 4 guides the sleeve 5 and protects the reservoir 1. Instead of the port 8, a non-return valve may be positioned between the passage 9 and the interior of the reservoir. For a large number of injections the hole 16 may be connected by tubing to a bottle &c. of liquid.
Patent GB-564715-A (GB)
Title: Improvements in or relating to cap closures for containers
IPC: B65D41/04
Filed: 1943-04-07
Abstract: 564,715. Screw cap closures. GEE, L. F., and GEE, JUN., J. A. April 7, 1943, No. 5526. [Class 125 (iii)] A paper screw-cap closure for paper, glass, metal, &c. bottles, jars &c. is formed from a paper disc shaped to form a top b<1> and a flange b<2>, a doubled piece of paper being gummed to both sides to provide layers b<3>, b<4>, and a continuous or interrupted screw thread being pressed into the 3-ply flange thus formed. Layers b<3>, b<4> may be silvered, coloured, &c.
Patent GB-271577-A (GB)
Title: Improvements in or relating to wireless receiving aerial systems and circuits therefor
IPC: H01Q21/08
Filed: 1926-02-27
Abstract: 271,577. Mathieu, G. A. Feb. 27, 1926. Coupling aerial and detector or oscillator circuits. - Signals received on a number of spaced aerials A are combined vectorially by means of feeders W1, W2, W3 and collected in a final circuit Z, which may form the input to a receiving set. Autotransformers T1, the mid point being earthed, are arranged to match the aerial inpedance with that of the feeder W1. whilst in order to add the voltages vectorially the leads of one pair are crossed over as shown. The energy is transformed to twin secondaries of the transformer T2 comprising series condensers C to counteract inductive reactance. By adjusting the ratio of transformation, maximum transferrence of energy is ensured and the whole system is balanced. From the feeders W2 the energy is similarly transferred through a second twin transformer T3 to the final " tank " circuit Z. The system is analyzed in the Specification and shown to be equivalent to a balanced three-wire system with the neutral wire removed. It may equally be applied to the energizing of transmitting aerials.
Patent GB-1451986-A (GB)
Title: Coating compositions
IPC: C08L33/00
Filed: 1974-02-07
Abstract: 1451986 Coating compositions ROHM & HAAS CO 7 Feb 1974 [20 Feb 1973 21 June 1973] 05693/74 Headings C3P and C3R Thermosetting coating compositions comprise an alkaline aqueous blend of (A) a latex of a water-insoluble copolymer of (1) a monovinyl aromatic monomer, (2) at least one ester of acrylic or methacrylic acid free from amide or hydroxyl groups, (3) at least one olefinically unsaturated monomer having at least one amide or hydroxyl group and (4) at least one olefinically unsaturated monomer having a carboxyl group in free acid form or in the form of a salt with ammonia or a water-soluble volatile amine, the amount of (3) being 1À5 to 10% when the monomer contains an amide group and 1À5 to 10% when the monomer contains a hydroxyl group and the amount of (4) being 0À5 to 5%, based on the total weight of monomers, the Tg of the polymer being below 45‹ C.; and (B) a watersoluble condensate of urea or a triazine with formaldehyde, or an ethanol or methanol ether thereof; the weight ratio of (A) to (B) being 35 : 65 to 65 : 35, the minimum film-forming temperature of the composition being no higher than 25‹ C., the composition having a solids content of 40 to 80 weight per cent and containing 1 to 5% by weight of the solids of components A and B of a water-soluble polyethylene oxide having a molecular weight of at most 100,000 or polyethylene glycol or derivative thereof as rheology modifier. Preferred copolymers are derived from (1) styrene or vinyl toluene, (2) C 2-12  alkyl acrylates or C 6-14  alkyl methacrylates, (3) acrylamide, methacrylamide or hydroxyethyl or hydroxypropyl acrylates or methacrylates, and (4) acrylic, methacrylic or itaconic acids. Preferred condensates are methyl ethers of urea- or melamine-formaldehyde condensates. Preferably the compositions contain a volatile base, e.g. a tertiary amine. They may also contain pigments and dispersants, and may be used for coating metal sheets which may be post-formed into cans, lids and screw caps, or ceramics or wood, by direct or reverse roll coating. Examples describe coating compositions comprising polyethylene glycols or polyethylene oxides, triethylamine and (1) methylated melamine/formaldehyde condensate and styrene/ isobutyl acrylate/hydroxyethyl methacrylate/ methacrylic acid copolymer; and methylated urea/formaldehyde condensates and (2-6) styrene/butyl acrylate/methacrylamide/methacrylic acid copolymers and (7) styrene/butyl acrylate/hydroxyethyl methacrylate/methacrylie acid copolymer; and optionally pigments such as titanium dioxide.
Patent GB-1453414-A (GB)
Title: Method of producing a hollow cylindrical supercritical rotor for a gas ultra-centrifuge
IPC: B23P13/00
Filed: 1975-02-11
Abstract: 1453414 Gas centrifuge rotor DORNIER SYSTEM GmbH 11 Feb 1975 [21 March 1974] 5765/75 Heading B2P [Also in Division B3] A method of making a hollow, cylindrical rotor for gas ultra-centrifuges comprises bonding a steel plate to form a tubular blank having abutting edges, welding the abutting edges together by electron beam welding or tungsteninert-gas welding, solution treating the blank and bringing it to its final dimensions by flow spinning. The steel is a maraging steel of high strength and the solution treatment comprises heating it at 820‹C for about an hour. The blank is flow spun by being placed on a rotary mandrel having a stop and three rollers move along it up to the stop. The spun cylinder is cut to length and at axially spaced areas where it is intended to have annular grooves the periphery of the cylinder is ground.
Patent GB-1056963-A (GB)
Title: Primary unsaturated esters
IPC: C07C69/01
Filed: 1965-02-10
Abstract: An ester of an ethylenically unsaturated primary alcohol is obtained by oxidizing an a -olefin having at least three carbon atoms in the molecule with a palladium salt and esterifying the a -olefin with a carboxylic acid and salt thereof in the presence of ions of potassium, rubidium or caesium and a polar solvent at room temperature to 140 DEG  C.  The palladium salt may be the chloride or a salt of the carboxylic acid used.  The alkali metal salt may be a salt of the carboxylic acid used or it may be used in the form of the oxide, carbonate or phosphate.  An oxidant capable of reacting by an oxidation-reduction mechanism (e.g. CuCl2, FeCl3 or quinone) may also be present.
Patent GB-622211-A (GB)
Title: Improvements in or relating to pick-up loops for ultra-high radio frequencies
IPC: G01R23/04
Filed: 1946-02-25
Abstract: 622,211. Thermal ammeters and voltmeters ;  power meters. SUBMARINE SIGNAL CO. Feb. 25, 1946, No. 5783. Convention date, March 10, 1945. [Class 37] [Also in Group XL (c)] A detecting arrangement for high-frequency radio energy comprises a pick-up loop 7 having an open segment 8 completed by the heating element 9 of a thermo. couple. The loop 7 is supported by a bracket 6 attached to the terminal 4. The wire 9 forms one element of the thermocouple, the wire 10 forming the other and being connected between the centre of the wire 9 and the terminal 5. The arrangement is enclosed in an evacuated envelope 1.
Patent GB-140384-A (GB)
Title: Improvements in or relating to tile making machines
IPC: B28B1/04
Filed: 1920-02-26
Abstract: 140,384. Muller Bauten-und Industriewerke, A. March 18, 1919, [Convention date]. Tamping-machines; templets.-Relates to combined tamping and striking-plates for tile machines. The plate a is supported by front and rear shafts c, e carrying flanged cams f engaging parallel guide-rails q, which shafts are coupled by levers i, k and links l, and are operable by a handle i<1>, the plate a supports a shaft n, disposed nearer the rear end, carrying a frame o in which are mounted rollers p adapted also to engage the rails q. The cams f are formed with flat faces g, h, Fig. 6, disposed at an obtuse angle, upon either of which faces the cams can be slid. By turning the handle i<1>, with the frame o in the position shown in Fig. 1, the plate a is raised and dropped to tamp the material, after which the frame o is turned down, as indicated in Fig. 4. raising the rear end of the plate a, which is then moved along to strike off superfluous material, being supported by the front cams f and rollers p. By turning down both the handle i<1> and frame o, the plate a is raised above the mould and can be returned.
Patent GB-453562-A (GB)
Title: Improvements in or relating to electron discharge device circuit arrangements
IPC: H03H7/00
Filed: 1936-02-27
Abstract: 453,562. Modulating systems ; valve circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London.-(Assignees of Lindenblad, N. E.; Port Jefferson, Long Island, New York, U.S.A.) Feb. 27, 1936, No. 5913. Convention date, Feb. 27, 1935. [Class 40 (v)] An oscillatory circuit SC symmetrical with respect to earth is coupled to a non-symmetrical circuit NC by means of a pair of valves A, B excited in push-pull by the circuit SC and with their output electrodes connected in parallel to the circuit NC; the grids of the valves being earthed by series-resonant circuits L, C which prevent the output circuit NC from reacting through the valves on the input circuit SC. As shown in Fig. 2, the cathodes of the valves A, B are connected by a coil X which is symmetrically connected to the circuit SC. Owing to the common connection of the valve plates, no energy of carrier frequency passes to the circuit NC unless the valves are unbalanced by applying modulating potentials to their grids in pushpull from a source MP. Carrier voltages are kept out of the source MP by chokes R and condensers B. The circuit may also be used for producing oscillations of doubled frequency in the circuit NC; and a modulated carrier in the circuit SC may be demodulated or converted to a lower frequency in the circuit NC by applying a local oscillation in place of the signal source MP. In a modification, shown in Fig. 3, the circuit SC is connected to the valve grids and the cathodes are earthed. The grids are connected by a pair of condensers K the junction of which is earthed through a coil Y so as to prevent reaction of the output circuit NC on the input circuit SC. Signal voltages from the source MP are applied in push-pull to the valve grids through resistances R, R<1> separated by a condenser.
Patent GB-654096-A (GB)
Title: Telephone systems
IPC: H04Q3/42
Filed: 1948-02-27
Abstract: 654,096. Automatic exchange systems. WESTERN ELECTRIC CO., Inc. Feb. 27, 1948, No. 6068. Convention date, Oct. 31, 1940. Drawings to Specification. [Class 40 (iv)] In a large cross-bar toll office, the same senders are used for dealing with calls having 3, 4 and 5-digit routing codes, and the appropriate. digits are transferred from the sender registers to the marker as soon as the code is complete to control selection of an outgoing trunk to a distant toll office, to a terminating office or to a delayed outward toll switchboard. An incoming trunk is connected in known manner to a sender which receives a preliminary signal from the incoming trunk circuit to operate one or other of two class relays to indicate whether the call is to go to a further toll office or is to be completed in the toll area. Each code digit is received as a pulse on either or both wires of the incoming trunk which are connected at this time to two sets of three relays, one being marginal and one polarized, and the digits are transferred in succession to a series of relay registers. After the third digit of a 3-digit code has been registered, the A, B and C registers of the sender transfer their record to the marker, which controls a first group of route relays. A 4-digit code, which indicates a call to a further toll office, has the first digit 0, and this energizes a 4-digit relay which, in conjunction with the class relay, operates a relay in the marker to switch in a second group of route relays and causes the transfer of the record from the B, C and D registers of the sender to the marker when the code is complete. Similarly, a 5-digit code, which indicates a call terminating in the area, has the initial digits 11, and a 5-digit relay in conjunction with the class relay effects the switching in of a third group of route relays and the transfer from the C, D and E registers of the sender. Subsequent digits are recorded on later registers of the sender and are transferred to an outgoing sender and re-transmitted over the out-going trunk as soon as a terminating pulse is received, the latter being acknowledged by a backward signal over the incoming trunk. Specifications 642,455 and 653,002 are referred to.
Patent GB-922088-A (GB)
Title: A method of forming a tunnel-like hem on a thermoplastic sheet
Inventor: OTTO FREDERICK LEWIS
IPC: B29C65/04
Filed: 1960-02-22
Abstract: 922,088. Seaming non-metallic sheet material. SOUTHALLS (BIRMINGHAM) Ltd. Feb. 6, 1961 [Feb. 22, 1960], No. 6099/60. Class 42 (1). [Also in Group XI] A method of forming a tunnel-like hem on a thermoplastic sheet comprises folding over a marginal portion of the sheet, bringing into contact with the folded portion a bar-type electrode having on its contacting face a plurality of parallel ribs or a plurality of projections arranged in parallel rows and passing a high-frequency welding current between this electrode and another on the opposite face of the sheet so as to fuse the thermoplastic along a plurality of continuous or interrupted parallel lines which intersect the edge of the folded portion of the sheet. Fig. 1 shows a suitable electrode having on one face a plurality of parallel ribs 5. The ribs may be interrupted to form projections or they may be parallel to the longitudinal axis in which case the electrode is used at an angle to the hem.
Patent GB-981605-A (GB)
Title: Process and apparatus for the treatment of particulate or granular substances
IPC: B01F33/40
Filed: 1961-02-20
Abstract: 981,605. Mixing and treating particulate material. G. GRUN, [trading as GEB. GRUN KOMM. GES.]. Feb. 20, 1961 [March 2, 1960], No. 6157/61. Heading B1C. In a process and apparatus for treating a particulate or granular substance an upright treatment chamber 11 tapers to an open outlet 13; the particulate is introduced in such a way that it executes a whirling motion, the treating substance (which may be a solid, liquid or gas) being sprayed in as at 16, and an upward flow of gas is induced in the chamber 11 at such rate that the treated, heavier particles fall to the outlet against the gas flow while the lighter, untreated areas are entrained and carried out of the chamber ; whence they may be recirculated. As shown, the particles are introduced tangentially in an air stream from the pipe 12, and the gas flow is established by suction from the pipe 19a or by supplying air under pressure to the adjustable apertures 14. The outflowing untreated material is separated at 19 from its carrier air (which is further filtered at 19c) and returned to the pipe 12 through the hopper and metering device 15. In another embodiment, see Fig. 2 (not shown), the particles are given a whirling motion by introduction from the outlet of a cyclone separator mounted above the chamber 11. The air entering the apparatus through the apertures 14 may be heated or cooled. The nozzles 16 may be arranged as a ring of nozzles and may be supplied with compressed gas as well as with the treating substance.
Patent GB-540007-A (GB)
Title: Improvements in and relating to sliders and sliding clasp fasteners
IPC: A44B19/30
Filed: 1941-05-15
Abstract: 540,007. Sliding-clasp fasteners. UNITED CARR FASTENER CORPORATION. May 15, 1941, No. 6272. Convention date, June 25, 1940. [Class 44] In a sliding-clasp fastener in which a pivotally movable pull tab 9 has means such as a tongue 17 serving to lock the slider 4 against movement when the tab is folded down into inoperative position, as shown, spring means are provided always urging the tab towards the locking position, so that locking is effected automatically when the tab is released. As shown, a coiled spring 19 is housed in an aperture 8 in a lug 7 provided on the upper wing 5 of the slider, and the tab is pivotally mounted within the spring. One end 21 of the spring bears against the face of wing 5, the other end 22 being passed out through a slot 16 in the tab and bent over to bear against a face of the tab. Slot 10 connected with slot 16 receives the lug 7. The part 11 of the tab is split at 12 to allow the limbs 13 to be temporarily separated in pivotally mounting the tab by disposing the part 11 within the spring and aperture 8.
Patent GB-176373-A (GB)
Title: Improvements in apparatus for multi-colour photography
IPC: G02B27/06
Filed: 1922-03-03
Abstract: 176,373. Mroz, J. March 4, 1921, [Convention date]. Colour photography.-In a camera for taking a single set of colour negatives in a strip of kinematograph film, the driving-sprocket 2, Fig. 1, is actuated to feed the film through a Maltesecross gear 3, 4 which is driven by a toothed sector 8, Fig. 2, and pinion 7 on the pin-wheel shaft 6. The movement of the sector 8 is limited by a pin 11 to feed the film for the number of component negatives required. The shutter 33 containing the filters is rotated through bevel and worm gearing 29, 31, but may alternatively be intermittently rotated from the shaft of the sprocket 2. The sector 8 actuates the Maltesecross through a clutch 20, which enables the sector 8 to be reset by the knob 14 without affecting the driving-gear. The sector 8 is held in set position by a pin 15 on a spring blade 16 which is released for exposure by pressing the pin 19. The exposure is controlled by the tension put on the spring 10, by turning the knob 13. For time exposures an adjustable or pneumatic controlling means can be used. To enable the camera to be driven by hand from the handle 26 the clutch 20 and sector 8 can be disconnected by turning the knob 25. Means for indicating the consumption of film and the position of the parts of the apparatus can also be fitted.
Patent GB-771141-A (GB)
Title: Improvements in or relating to values for dispensing fluids of fluent material
IPC: B65D83/14
Filed: 1955-03-03
Abstract: 771,141. Powder distributers. MICHEL, D. D. March 3, 1955 [June 4, 1954], No. 6306/55. Class 18. [Also in Groups XXVIII and XXIX] A valve for dispensing powder from a container 10 comprises a hollow stem 16 closed at one end by a valve head 52 and provided with transverse openings 56, and the valve head can seat against a resilient member 30 which is extended upwardly to form a sleeve-like member embracing the stem and urging the latter upwardly so that the valve head is normally in contact with the resilient member 30. When the stem is tilted sideways, the contents of the container can flow past the valve bead, through the openings 56, and out through the end of the stem. The passage through the latter is formed as a divergent nozzle. An inwardly directed rib 44 on the sleeve-like portion of the member 30 presses on the stem and prevents leakage of fluid along the latter. The upper end of the sleeve-like portion engages an external collar 50 on the stem. The stem is also formed with a screw thread 18 which can be engaged by a cover 14, the latter preventing the stem from being tilted inadvertently.