baber/WOPTO huggingface dataset:
Patent GB-478875-A (GB)
Title: Improvements in or relating to driving mechanism for tandem bicycles
IPC: B62K3/12
Filed: 1937-07-19
Abstract: 478,875. Driving - mechanism for tandem bicycles. VREEDE, D. July 19, 1937, No. 19983. Convention date, July 20, 1936. [Class 136 (ii)] In driving - mechanism for tandem bicycles, the transmission gears between the two pairs of pedals and the rear wheel are provided with a plurality of free-wheel devices, the arrangement being such that either pair of pedals can be arrested independently of the other pair, so that either rider or both may freewheel. In the form shown, the second pedal-crank spindle 9 of the transmission train is connected through a free-wheel clutch 10 to the sprocket 6 which drives the rear-wheel hub. The sprocket 6 has a laterally-displaced part 11 on which is mounted, by a free-wheel clutch 12, the sprocket 4 which is driven from the other pedal-crank spindle. In the case of the usual tandem, the spindle 9 constitutes the rear pedal-crank spindle, while in the case of a short tandem in which the rear crank spindle passes through the rear-wheel hub, the spindle 9 constitutes the front crank spindle.
Patent GB-587595-A (GB)
Title: Improvements in or relating to the manufacture of refractory and other ceramic materials containing aluminium oxide
IPC: C04B35/622
Filed: 1944-10-16
Abstract: Refractory materials containing alumina, for bricks, mortar, crucibles, or the like, are formed from the ordinary raw materials relatively free from iron by causing aluminium or aluminium alloys and aluminium nitride in the form of foundry skimmings to be oxidized in situ during mixing, shaping, or baking, the oxygen being obtained from the air during baking, from the water during mixing and shaping, or, partly, from zinc oxide which may be included in the mix, the zinc being volatilized during subsequent treatment.  During the reaction, aluminium hydroxide may be produced first, and acts as a bonding agent for the other ingredients, which include kaolin and other clay of low iron content, together with crushed firebrick, magnesite, chromite, zirconium silicate, graphite, or other refractory material. According to examples, foundry skimmings from the refining of aluminium alloys, containing the alloys with magnesium, manganese, zinc, and cadmium, and aluminium nitride, are ground and mixed with plastic white clay and crushed firebrick, zircon, chromite, or magnesite, and zinc oxide may be included.  The Specification as open to inspection under Sect. 91 refers also to the use of materials for acid-resisting sheets and containers, abrasive stones, or the like, and describes the use in the reaction of basic, acidic, or neutral catalytic agents such as sodium hydroxide, the oxides of calcium, magnesium, and zinc, sulphuric acid, aluminium or copper sulphate, and the chlorides of calcium, magnesium, and zinc, sodium silicate and sodium aluminate; mercuric oxide and cadmium oxide are referred to as alternatives to zinc oxide for the supply of oxygen.  This subject-matter does not appear in the Specification as accepted.
Patent GB-489408-A (GB)
Title: Improvements in and relating to sectional boats
IPC: B63B7/06
Filed: 1937-07-19
Abstract: 489,408. Sectional boats. AUTO UNION AKT.-GES. July 19, 1937, No. 19999. Convention date, July 17, 1936. [Class 113 (ii)] A sectional boat is made from parts pressed from laminated artificial resin materials, each part being moulded in one piece with its connecting flanges, which themselves follow the keel or frame lines or both. Each part 12, 13, 14, 15 is formed with flanges 5 which form the keel and frame flanges 16, 17. In a modification, the deck is connected by similar flanges. In a further modification, the abutting edges at the sides are protected by projecting rims.
Patent GB-406566-A (GB)
Title: Improvements in liquid fuel burners
IPC: F23D11/24
Filed: 1933-07-14
Abstract: 406,566. Spray-producers. BABCOCK & WILCOX, Ltd., Babcock House, Farringdon Street, London.-(Assignees of Fletcher, J. ; 290, Storer Avenue, Akron, Ohio, U.S.A.) July 14, 1933, No. 20031. Convention date, Jan. 17. [Class 69 (iii).] A liquid-fuel burner of the type in which two or more fuel streams from a common source discharge through a common whirling chamber and nozzle opening into a furnace comprises a body member 15 having passages 16, 18 connected by a pipe 17 and barrel 12 to a sprayer head 20 to which a sprayer plate 25 and nozzle 32 are secured by a cap 38. The sprayer plate is formed with a circular whirling chamber 28 connected by tangential passages 30 to ports 29 communicating with the pipe 17 and with ports 27 communicating through an annular recess 21 and ports 22 in the head 20 with the passage between the pipe 17 and barrel 12. The nozzle 32 is formed with a restricted orifice 34, the angle of the conical surface on the whirling chamber side being preferably 60‹ and that on the discharge side being preferably 120‹.
Patent GB-612610-A (GB)
Title: Improvements in or relating to heat radiating apparatus
IPC: F24C3/04
Filed: 1945-08-03
Abstract: 612,610. Incandescent gas fires. HUNT & SON, Ltd., R. J., and PUSEY, H. O. Aug. 3, 1945, No. 20058. [Class 126] In a gas burning luminous flame heat radiating apparatus comprising a refractory back member furnished with a plurality of vertical ribs, a heat radiating panel made of fused silica and arranged in front of such back member in transversely spaced relationship therewith, the space between the back member and the panel being open at its upper and lower ends, and gas burners being disposed at the open lower end of said space, said backmember 3 and panel 8 define a combustion chamber which decreases in crosssectional width upwardly from a point less than halfway up the chamber, and an axial line drawn through said burners when extended upwardly will intersect the surface of said backmember less than half-way up such member. The back member 3 which may have ribs or projections and may be curved in shape, and the panel 8 seat on a false bottom 2, which is apertured near the burner jets 20 to localise the air supply, and the panel may comprise two imperforate parts spaced to give an opening not exceeding 25 per cent of the total panel area. In a modification two rows of jets 20 staggered with respect to each other are used.
Patent GB-923987-A (GB)
Title: Improvements in or relating to differential drive mechanism
IPC: F16H48/12
Filed: 1961-06-05
Abstract: 923,987. Balance gear. HY-TORQ PRODUCTS CORPORATION. June 5, 1961 [June 14, 1960], No. 20129/61. Class 80 (2). A motor vehicle differential gear comprises two reversible one-way clutches with rollers 9, 10, which jam between hyperbolic recesses 25 of a driving casing 6 and cylindrical hubs 7, 8 on part axles A, A<SP>1</SP>, the rollers being carried in cages 11, 12, each of which has a Neoprene " O " ring 33 in frictional engagement with the corresponding hub 7, 8 to move the released cage and rollers into a neutral position when their axle overruns. A facial slot and tongue connection (Fig. 5, not shown) between the cages 12, 11 restricts the relative rotary movement of the cages to one half of their total movement between forward and reverse drive positions, thus preventing movement of the rollers of either one clutch beyond a central neutral position during differential overrun, but not preventing two-way drive during straight running.
Patent GB-314808-A (GB)
Title: Means for protecting the insulating sleeves of electrical machine windings from glow discharge phenomena
IPC: H02K3/40
Filed: 1929-07-01
Abstract: 314,808. Siemens -Schuckertwerke Akt.-Ges. July 2, 1928, [Convention date]. Cores; insulation.-To prevent the occurrence of corona in high-voltage machines, the extended slot lining 3 of the conductor 2 is provided with a layer of conducting or semi-conducting material 4, such as metal foil, connected to the stator iron 1; insulation 5 covers the foil 4 and an external facing 6 of conducting or semi-conducting material is placed on the insulation 5 as shown. Insulation 7 may cover the facing 6. Specification 298,645 is referred to.
Patent GB-147361-A (GB)
Title: Improvements in and relating to camera attachments for stereoscopic photography
IPC: F16M11/18
Filed: 1919-08-16
Abstract: 147,361. Beyer, M. W. Aug. 16,1919. Cameras, stereoscopic.-A stand or base attachment for a camera to allow a single camera to be adjusted into two adjacent positions for taking sterescopic views and in both of which positions the optical axis passes through the object comprises a base-plate 10, an intermediate plate 11 movable on the plate 10 about a pivot 16 and having a pin 20 which moves in an arcuate slot 23 in the plate 10, and a top plate 12 which pivots on the pivot 20 and moves between a fixed stop 37 and an adjustable stop 25. The camera is mounted on the plate 12 with the lens 41 immediately above the pivot 20. For the first exposure, the plate 12 is moved up to the fixed stop 37 and the pivot 20 is moved to the end of the slot 23, so that the optical axis is along the line A B, Fig. 3. For the next exposure, the plate 11 is swung to the extent of the slot 23 and the plate 12 and camera swung about the pivot 20 until the projection 36 abuts against the projection 33 on the stop 25. The projection 33 is set by the screw 30 for the distance of the object.
Patent GB-451539-A (GB)
Title: An improved receptacle for ash or cigarette ends and the like for smokers' use
IPC: A24F19/06
Filed: 1935-07-15
Abstract: 451,539. Smokers' ash receptacles. PRINTATOR, Ltd., and HORNEMANN, A., 9, Oxford Street, London. July 15, 1935, No. 20192. [Class 130] A receptacle 1 for ash, cigarette ends, &c. has a rockable cover 5, the edges 9, 8 of the front and rear portions of which are adapted to coact with the inner face of the wall of the receptacle and the top edge of the receptacle respectively to form a seal around its entire periphery to prevent the egress of smoke or the ingress of air. The cover 5 is shovel-shaped and is provided forwardly of its centre with lugs 6 pivotally engaging recesses in the ends 2 of the receptacle. The edge 8 is flat and seats on the top edge of the back wall 4 and also on the top edges of the end walls 2 to the rear of the recesses. The cover has an extension 10 by which it may be tilted to shoot the ash into the receptacle and which forms a cigarette-rest.
Patent GB-713453-A (GB)
Title: Improvements in or relating to tamping devices
IPC: E02D3/061
Filed: 1951-08-28
Abstract: 713,453. Tamping machines. LANG, A. Aug. 28, 1951 [Aug. 29, 1950], No. 20252/51. Class 124 A tamping device comprises a wheeled machine frame, an internal combustion ram unit mounted in a ram guiding frame slidable relative to the machine frame and having a stop device against which the ram unit strikes during its upward movement to cause the frame to rise, and an impact plate, having a pivotally attached tamping plate, mounted at the lower end of the ram guiding frame to receive the blows of the ram. As shown, a ram unit 1 is mounted in a frame 2 having guide channels 2a engaging rollers 9 carried by a wheeled machine frame 8. The frame 2 carries at its lower end an impact plate 4 connected to a tamping plate 6 by a ball joint 5 (Fig. 5), and at its upper end impact pins 11 which engage corresponding pins 10 on the ram unit when the latter rises causing the guiding frame, impact plate and tamping plate to rise. On its downward movement the ram strikes the impact plate, the ball joint allowing the tamping plate to adjust itself according to irregularities in the ground. A latch 15 operated by a Bowden cable may be arranged to intercept the ram when at the top of its stroke and put the device out of operation. The downward stroke of the ram may be used, in conjunction with a ratchet and pinion, to tension springs which move the wheels to advance the device. A separate motor may also be used to move the device. The frame and handles may be adjustable for ease in handling and for transporting the device to and from its working site.
Patent GB-1033841-A (GB)
Title: Improvements in or relating to distance pieces for concrete reinforcing rods
IPC: E04C5/20
Filed: 1964-05-15
Abstract: 1,033,841. Spacers for reinforcing rods. K. W. OLIVER. May 17, 1965 [May 15, 1964], No. 20255/64. Addition to 986,450. Heading E1V. A distance piece for supporting a reinforcing bar, according to the parent Specification is modified by the provision of a supporting rib c intermediate the two feet a<SP>4</SP>.
Patent GB-1527319-A (GB)
Title: Indicated system
IPC: G07C5/08
Filed: 1977-05-13
Abstract: 1527319 Displays BAYERISCHE MOTOREN WERKE AG 13 May 1977 [15 May 1976] 20273/77 Heading G4H A system for indicating the operating condition or state of, or the fluid level in, motor vehicle components, comprises indicator and/or warning lamps grouped in accordance with their urgency and electrically connected to respective vehicle components via switches and/or meters, there also being a central warning lamp which is in parallel with the lamps in a first group and is connected to the corresponding switches and/or meters, in which (a) the lamps of at least a second group and a third group are connected to their respective switches and/or meters without being in parallel with the central warning lamp; (b) the lamps of at least the first group and the second group are connected in parallel to an ignition switch contact; and (c) the lamps of at least the third and/or other groups are connected via an interrogation key switch.
Patent GB-530722-A (GB)
Title: Improved electrically heated pitot static tube
IPC: G01P5/165
Filed: 1939-07-12
Abstract: 530,722. Heating pitot tubes by electricity. KOLLSMAN, P. July 12, 1939, No. 20275. Convention date, Aug. 2, 1938. [Class 39 (iii)] [Also in Group XXIX] An electrically heated pitot tube comprising a tubular shell 1 having a dynamic pressure opening 11, Fig. 1, and static pressure openings 8, is provided with means for locally heating those parts of the tube, especially behind the openings 8, at which ice formation would be greatest. Inside the shell 1, Fig. 1, are arranged an electric heating element 4 near the opening 11, and an element 5 at the bend of the dynamic pressure duct 3, the elements being contained in metal casings 40, 50 attached to the shell 1 by electrodeposition. In a modification, Fig: 3, only one heating element 4 is provided and is joined to a metallic member 14 which conducts heat to other parts of the shell 1. A protuberance 17, Fig. 5, may be formed in the shell 1 to prevent passage of water to the indicating tubes 7, 9. An electric heating element 15 is provided with a heat conducting member 21 which passes into the trap 17. Water is collected on a plate 16, and passes out through a hole 22. The dynamic pressure tube 3 continues as the pipe 18, whilst the static tube 9 has an auxiliary trap member 19.
Patent GB-1492731-A (GB)
Title: Production of marek's disease vaccine
IPC: A61K39/255
Filed: 1976-05-17
Abstract: 1492731 Production of Marek's disease vaccine MERCK & CO INC 17 May 1976 20316/76 Heading A5B A large-scale tank process for producing a live virus vaccine for immunisation of chickens against Marek's disease comprises incubating a mixture of viral - free cells, growth medium and isolated turkey herpes virus in a multi - plate apparatus comprising a plurality of discs mounted on a rotatable shaft in a vessel the incubation being started before any substantial cell growth has taken place in the multi - plate apparatus, continuing the incubation until a satisfactory virus level is obtained, and harvesting the virus.
Patent GB-614129-A (GB)
Title: Improvements connected with combined garment hanger and trouser stretcher
IPC: A47G25/70
Filed: 1946-07-09
Abstract: 614,129. Combined trouser stretchers and coathangers. MANSER. H. J. July 9, 1946, Nos. 20415 and 28855. [Class 141] Two frames 3 for insertion in the legs of trousers are hung on hooks 2 of a coat-hanger 1. Each frame comprises side members which are hinged at the middle and have their ends bent at right angles and slidable in tubes 5 which form the ends of the frames and house compression springs for expanding the frames. The side members are of pear-shaped crosssection. According to the first Provisional Specification, the frames are detachably connected to the coat-hanger by pivot pins which engage holes in brackets drawn together by a spring in a tubular part of the hanger.
Patent GB-531148-A (GB)
Title: Improvements in and relating to cathode ray tubes
IPC: H01J29/28
Filed: 1939-07-13
Abstract: 531,148. Cathode-ray tubes. BRITISH THOMSON-HOUSTON CO., Ltd. July 13, 1939, No. 20427. Convention date, July 15, 1938. [Class  39 (i)] In a cathode ray'tube the luminescent material on the screen has a conductive coating of graphite applied as a powder or in a colloidal suspension. This coating may be superficially covered by an additional metal layer having good secondary - emitting qualities. The luminescent material is supported on a transparent non-conducting support through which the luminescent material is viewed. Specification 500,314 is referred to.
Patent GB-1309670-A (GB)
Title: Pyranosides
IPC: C08G18/38
Filed: 1971-04-19
Abstract: 1309670 Pyranosides UPJOHN CO 19 April 1971 [10 Feb 1970] 20466/71 Heading C2C [Also in Division C3] Novel compounds of formula where Me is alkyl and Ac is H or a protective carboxyacyl group are prepared by periodate oxidation of compounds of formula  where R is H or methyl and X is OH or NH 2 . Starting materials of Formula II where R and Me are methyl and Ac is acetyl are prepared according to the following reaction scheme with isolation of the intermediates shown The 2,4-dinitrophenylhydrazone of compound I in which Me is methyl and Ac is actyl is prepared. The compound of formula where Me is methyl is prepared by NaBH 4  reduction and acid hydrolysis from the corresponding compounds I where Ac is H or acetyl.
Patent GB-427240-A (GB)
Title: Improvements relating to double twist twisting spindles
IPC: D01H1/10
Filed: 1934-07-12
Abstract: 427,240. Twisting -apparatus for imparting two twists per revolution. BARMER MASCHINENFABRIK AKT.- GES., 12, Mohrenstrasse, Oberbarmen, Wuppertal, Germany. July 12, 1934, No. 20488. Convention date, Feb. 10. [Class 120 (ii)] In a double-twist twisting spindle in which spinning cops e, Fig. 1, are employed as unwinding spools, the spool holder a which is stationary on the rotating twisting spindle is provided with an exchangeable thread clearer b through which the individual threads are led before entering the twisting spindle. The clearer comprises a cylinder b open at both ends having admission slots c, Fig. 2, for the threads and transversely extending clearing slots d. The slots d may be adjustable in width.
Patent GB-1060174-A (GB)
Title: Melting and holding crucible for cold chamber die-casting machines
IPC: H01H31/16
Filed: 1965-05-14
Abstract: 1,060,174. Casting - machines. GEBR. BUHLER. May 14, 1965 [May 20, 1964], No. 20491/65. Heading B3F. [Also in Division F1] A melting and holding crucible 2 (for a coldchamber die-casting machine) has a spout 6 delivering from the crucible top to a spigot 7, an inlet 28 from the crucible to the spout being closable and operable by a plug 27 or a slide closure, and it also has a large displacement member 11 to be kept lowered into the melt 3, during normal operation, to maintain the melt level above the spout inlet 28 to retain superficial oxide but which can be raised to lower the melt level to stop outflow if there is leakage or other unwanted flow into the spout. The member 11 is raised or kept lowered by an hydraulic piston 12 but a melt-level detector 14 in the crucible (by adjusting the height of a stop 23 or, in a modification, of the piston cylinder 13) moves the member 11 to keep the melt-level constant in normal operation. A leak detector 53, e.g. heat-responsive, in the spout 6 operates a flow-reversing valve 46, electrically, to raise the piston 12 and member 11 (except when a cam 26 on the plug rod 24 opens a nullifying switch 57, i.e. when the plug 27 is raised open). A flow-reversing valve 34 is operated periodically by a timing device so that the plug 27 is raised and lowered at intervals by an hydraulic piston 29 to give measured quantities of melt. The plug 27 is rotated by a motor 71 while closing, to clean the seating.
Patent GB-183839-A (GB)
Title: Improvements in controllers for electric generating plants
IPC: H02J7/04
Filed: 1922-07-27
Abstract: 183,839. Ward Leonard Electric Co., (Assignees of Bullinger, F. H.). July 29, 1921, [Convention date]. Automatic circuit-breakers; electromagnetic switches; retractive switches.-Relates to electric switching devices for starting a generator in a self-contained plant comprising a gas-engine, a dynamo-electric generator, and a storage battery, for supplying light or power. In the arrangement shown diagrammatically in Fig. 9, manual closure of a switch 12 makes a temporary connection from the battery 40 to the generator 41, causing the generator to run as a series motor and start the engine 42, the ignition circuit being simultaneously closed through a switch 38. When the engine has started, the manual switch is allowed to open, the machine then running as a shunt-wound generator and closing a line switch 27 automatically when sufficient voltage is reached. In an alternative arrangement of circuits, the machine starts as a shunt-wound motor and runs as a compound-wound generator. In case of reverse current, the line switch is opened automatically by the combined action of a sh@nt coil 17 and a series coil 18. The manual switch is constructed to close and open with a snap action, and comprises a contact 12 mounted on a lever 11 toggle-jointed to a lever 10 which is actuated by a separate spindle 14 having a wing- nut handle 14a. A spring 13 moving across the dead centre produces a quick closure, and holds the switch closed as long as the lever 10 is maintained in the position shown in Fig. 7. Release of the wing-nut handle allows the toggle to move bodily down, the contact 12 sliding over the stationary contact 7 until it meets a turned-out portion 7<a> which impels the lever 11 back across the dead centre. The closing action of the spindle 14 acting upon a member 38e closes the ignition switch, which is retained closed by an electromagnet 16 wound with the coils 17, 18. The electromagnet also acts to attract an armature 20 and close the switch 27 when the voltage is sufficient, opening it again in case of reverse current.
Patent GB-826602-A (GB)
Title: An improved method and apparatus for passing liquids, e.g. disinfectant, into a water-flushing cistern
IPC: E03D9/03
Filed: 1958-06-27
Abstract: 826,602. Disinfecting &c. water-wastepreventers. McCOY, G. A. June 27, 1958, No. 20600 /58. Class 26. A dispensing device consists of a container J having a block A moulded into it at M, and when filled with liquid, e.g. disinfectant, will discharge a controller trolled quantity of it through a hose E into a flushing cistern when a ball H is displaced as the flushing arm is operated. The hole G, wherein the ball normally rests, is thus exposed to give the discharge, as in a slot in the base of the block A screws B clamp, the flushing arm. Into a hole above the slot is screwed an adaptor C to which the hose E is attached. The container has a lid K with a hole L.