baber/WOPTO huggingface dataset:
Patent GB-328843-A (GB)
Title: Improvements in or connected with frames for rigid airships
IPC: B64B1/00
Filed: 1929-06-19
Abstract: 328,843. Boulton & Paul, Ltd., and North, J. D. June 19, 1929. Airships.-A frame for rigid airships comprises transverse frames each consisting of two concentric polygonal framing members H, I, arranged one within the other in the same or approximately the same transverse plane, and connected at the angles of the outer frame H with the main longitudinal girder members K; radial struts J are arranged between the angles of the members I, H, and tension members L, M extend from the angles of the inner member I and connect to the appropriate longitudinal K at points on either side of, and spaced apart from, the point of connections of the outer framing member H with the longitudinal K. The frames may be constructed from tubes and girders of stainless steel or aluminium alloy.
Patent GB-1194764-A (GB)
Title: Improvements in or relating to Storage Devices for Liquid Under Pressure
Inventor: ROBSON GORDON RAYMOND
IPC: F16F9/08
Filed: 1968-04-22
Abstract: 1,194,764. Hydraulic accumulators. AUTOMOTIVE PRODUCTS CO. Ltd. March 25, 1969 [April 22, 1968], No. 18836/68. Heading F1P. Sealed flexible container 12 e. g. of P.V.C. or nitrite rubber are used in a reservoir 10 to provide a means pressurizing the fluid which is pumped in through a one way valve 16.
Patent GB-1458116-A (GB)
Title: Arc welding device
IPC: B23K9/29
Filed: 1974-04-30
Abstract: 1458116 Welding by fusion WELDING SPECIALITIES Inc 30 April 1974 18847/74 Heading B3R [Also in Division H5] In a MIG or TIG welding gun, the gun barrel comprises the end of a welding current conducting cable assembly 1, an end of the cable assembly having secured thereto a terminal fitting 9 for accepting a contact tube or electrode, and a handle 3 being secured about the cable assembly at a position spaced from said fitting. In the MIG gun shown, the cable assembly 1 comprises a hollow current conductor 7 of copper strands preferably in a plurality of opposite handed wound layers, an outer insulating sheath 8, e.g. of neoprene or silicone rubber, and a flexible inner, consumable electrode feed, tube 6, e.g. smooth walled or coiled. An end fitting 9 has a sleeve portion 12 interposed between the sheath 8 and the conductor 7 and secured to the latter as by swaging or brazing. A nozzle support insulating sleeve 13 is secured over the end of the sheath 8 and carries a replaceable gas nozzle 14. An electrode contact tube 15 is threaded into the fitting 9, and current conduction at the threaded connection may be improved by use of a conductive gel. The handle 3, e.g. of circular or oval crosssection, is mounted on the cable assembly by means of a block 17 which also carries a gas supply tube 16 having one end adapted to receive a gas supply hose 18 and the other end secured to the sleeve 13 so as to feed shielding gas into the latter and hence into the nozzle 14. The handle may carry a trigger switch 4 in a welding current control line. The gas supply tube 16 may be rigid or flexible to enable provision of, respectively, a rigid or a flexible adjustable nozzle end. An interference fit of say 0À005 to 0À200 inch between the sheath 8 and the conductor 7 provides a construction of cable assembly enabling the latter to be bent into, and remain in, a desired configuration. In the TIG gun of Fig. 3 (not shown), a tungsten electrode (15<SP>1</SP>) replaces the contact tube 15, the tube 6 is used for gas feeding, with the fitting 9 being suitably ported, and, where a rigid nozzle end is required, a retaining rod (16<SP>1</SP>) or suitable configuation secures the block 17 and the sleeve 13 together in place of the tube 16. Filler rod or wire may be fed exteriorly of the nozzle. The guns may have interchangeable gas supply tubes 16 or nozzle end retaining rods (16<SP>1</SP>). Barrel length may be adjusted by movement of the block 17.
Patent GB-1390785-A (GB)
Title: Signal receiving apparatus for a vehicle control system
IPC: B61L1/18
Filed: 1972-04-24
Abstract: 1390785 A.C. track circuit WESTING- HOUSE ELECTRIC CORP 24 April 1972 [28 May 1971] 18870/72 Heading B7N In an A.C. track circuit for continuous rail track in which the circuit ends are defined by shorting elements 12, 13 and each receiver pickup, e.g. 15, is adjacent a transmitter loop, e.g. 19, for the next track circuit, the receiver pick-up coils are disposed such that pick-up from the transmitter loop is cancelled. Receiver pick-up coils 24, 25, Fig. 3, are disposed on the shorting element 26 such that the required current S from the distant track circuit transmitter induces voltages which add in the coils whereas voltages induced as a result of the field LF from the transmitter loop for the adjacent track circuit are opposed and thus cancel. A four coil pick-up arrangement can be used, Figs. 7 and 9 (not shown), for also cancelling the pick-up due to traction return currents.
Patent GB-836053-A (GB)
Title: Improvements in the preparation of polymeric mixtures and compounds
Inventor: CERESA RAYMOND JOHN
IPC: C08L57/00
Filed: 1957-06-14
Abstract: Polymeric materials are produced by masticating a mixture comprising a polymer that is not rubberlike at room temperature, a polymerizable olefinic compound, a solid which is not dissolved in the mixture and, if desired or necessary, a plasticizing solvent, the selection of the constituents for the mixture and the relative proportions being such that the mixture is rubbery at the temperature of mastication and, if necessary or desired, oxygen being partially excluded during the mastication.  Polymers specified are polymethyl and polybutyl methacrylates, polyvinyl butyral, a styrene-butadiene copolymer, ethyl and benzyl celluloses, a diphenylol propane-epichlorohydrin polycondensate and Congo copal.  Olefinic compounds specified are methacrylic acid, methyl methacrylate and styrene.  The solid material may be carbon black, powdered metals and alloys, metallic oxides, peroxides hydroxides, carbonates, percarbonates, chlorides, sulphides, sulphates, sulphites, nitrates, nitrites and phosphates, borax, iodine pentoxide, silica, starch and a thermoset melamineformaldehyde resin.
Patent GB-185575-A (GB)
Title: Improvements in or relating to hydraulic presses and the like
IPC: B30B15/16
Filed: 1921-07-13
Abstract: 185,575. Cammell, Laird, & Co., Ltd., Allan, J. M., and Creigh, J. I. July 13, 1921. Actuating mechanism.-The working valves of hydraulic presses &c. are operated by cams on a shaft 1, which is disengaged from its driving means at the end of a cycle of operations. Collars on the shaft carry a key 7 received in a keyway 6, and, when a stop 15 is removed from the path of an arm 12 on the key, a spring 13 rotates the key so that it engages a keyway in the hub of a constantly driven pulley loose on the shaft. The stop 15 is automatically returned when its operating handle &c is released and disengages the key from the pulley when the cam-shaft has made one revolution. If the press is to be operated in two or more stages, a corresponding number of keys are provided.
Patent GB-1177989-A (GB)
Title: Removing Carbon Dioxide and Hydrogen Sulphide from Gases
IPC: B01D53/52
Filed: 1967-04-25
Abstract: 1,177,989. Gas purification. BADISCHE ANILIN- & SODA-FABRIK A.G., and DR. C. OTTO & CO. G.m.b.H. 25 April, 1967 [26 April, 1966], No. 18984/67. Heading C1A. In a two-stage process for the removal of CO2 and H2S from a gas by solvent scrubbing solvent of the same composition is used in each stage and is separately regenerated, in the first stage mainly CO2 being removed and in the second, using trays, each separately supplied with fresh solvent, residual H2S is removed. The two stages may be at the same temperature, preferably 65‹ to 70‹ C., or the second stage may be cooler than this, preferably 50‹ to 65‹ C. The contact time of the gas and liquid in the second stage is preferably less than 10 seconds. The solvent used is an aqueous solution of triethanolamine. An example is given using 35% aqueous ethanolamine operating at 25 atmospheres and 70‹ C.
Patent GB-861160-A (GB)
Title: Improvements relating to photographic printing
IPC: G03B27/72
Filed: 1958-06-13
Abstract: 861,160. Photo-electric printing control. LOGETRONICS Inc. June 13, 1958 [June 17, 1957], No. 18997/58. Class 40 (3). [Also in Group XX] In a photographic printing system in which a flying spot produced on a cathode-ray tube traverses negative 14 and the printing paper 10 and is received on a photo-electric cell 42 which controls spot intensity to produce dodging (reduction of overall contrast), an additional light source 64 is provided which illuminates the printing paper emulsion without passing through the emulsion. Fig. 2 shows the print density-log exposure curve in which H represents the negative highlights and S the shadows. If the total negative contrast is greater than the linear portion of the curve, both highlight and shadow contrast are reduced (H1, S1). By automatic dodging, that is control of printing light intensity in inverse relation to the negative density, the overall contrast of the print is reduced but the highlights and shadow contrast is improved (H2, S2). By illuminating the print emulsion as a whole the contrast in the highlights H2 is improved to H3 with little corresponding loss in the shadow contrast. In operation, the output of cell 26 (Fig. 1) which responds only to a small area of the print is integrated at 30 and compared with a reference voltage derived at 36 to cut off the cathode-ray tube at a predetermined exposure. The output of cell 42 is fed through a logarithmic network and applied to an A.C. amplifier 50 where it is inverted, amplified and applied to the grid of the cathode-ray tube to control the light spot intensity. The output of the longarithmic network is also fed to peak detector 56 where a signal giving the contrast range is compared with a reference voltage 58 representing the permissible range of the printing paper. If the peak-to-peak signal exceeds the reference, a signal is developed with increases the gain of amplifier 50 until the peak-to-peak signal is reduced. The amplifier gain then reduces again until the peak-to-peak signal increases and so on. The output of the peak-to-peak detector also illuminates an argon glow lamp 64 whose brightness varies with the peak-to-peak voltage. This further reduces the print contrast as described above.
Patent GB-117030-A (GB)
Title: Improvements in Kinema Theatres and the like.
Inventor: BOUNDIKOV ALEXANDER
IPC: E04H3/22
Filed: 1917-12-24
Abstract: 117,030. Boundikov, A. July 4, 1917, [Convention date]. Optical-projection apparatus.- In kinema - theatres and the like e the sea.ts are arranged in groups A, B, C, D to which are assigned different screens A<1>, B<1>, C<1>, D<1>, the screens being viewed from each group over the seats of another group. Fig. 4 shows the arrangement in a building of triangular form. In a building of oblong form the groups face each other and view their respective screens over a partition which prevents them from seeing each other.
Patent GB-479419-A (GB)
Title: Improvements in ripening and hardening photographic emulsions
IPC: G03C1/30
Filed: 1937-07-10
Abstract: Silver halide gelatin emulsions are ripened and hardened, and after-hardening is eliminated, by subjecting the unripened emulsion after coating and drying to heating at a fixed temperature and humidity in the presence of a hardening agent. The preferred temperature may vary from 40 to 90 DEG  C., the humidity from 50 per cent to 80 per cent, and the pH value from 6,2 to 6,7.  Tables are given in the Specification of the effect of the treatment on gelatin emulsions using as hardening agents, formaldehyde, arabinose, diacetyl, acetonyl acetone, acetoxime, terephthalic aldehyde, chloral, methylal, and hexamethylene tetramine.  Specification 463,427 is referred to.
Patent GB-972286-A (GB)
Title: Improvements in the separation of liquids
Inventor: DOUGLAS EDWARD
IPC: B01D17/02
Filed: 1960-05-31
Abstract: 972,286. Separating liquids by filtration and gravity. NATIONAL RESEARCH DEVELOPMENT CORPORATION. May 30,1961 [May 31, 1960], No. 19248/60. Heading B1D. Water contaminated with oil is introduced at 3 to a tank 1. Some oil 12 passes out at 4 while the remaining mixture 11 passes downwards and then up through a pebble bed filter 8 where oil is at first retained. Oil-free water passes out at 9. As the process continues, saturation of the bed with oil occurs, and thereafter the oil in the bed is coalesced into larger globules which pass from the bed and are discharged at 7. The pebble size may lie in the range <1>/16-<1>/8 inch and the pressure difference across the bed may be 1À4 lb. per square inch per inch depth.
Patent GB-701176-A (GB)
Title: Grinding machine
IPC: B02C19/20
Filed: 1951-08-16
Abstract: 701,176. Grinding-machines. GOODALL, C. Aug. 8, 1952 [Aug. 16, 1951], No. 19334/51. Class 59 A machine for reducing vegetable matter or other material to a finely divided condition comprises an endless abrasive band c passing over rotary pulleys a, b, the material to be reduced being fed from a hopper i to the gap between the pulley b and a feed roller h. The pulley a is preferably made smaller than the pulley b to facilitate the detachment of finely-divided material adhering to the band, this material being carried towards a collecting roller d from which it is removed by a scraper k. Alternatively the finely-divided material may be detached from the band by means, e.g. a suction fan or a nozzle, arranged adjacent to the underside of the band. The bamd is tensioned by mounting the pulley a and roller d on a slide e which is loaded by means of a weight g or a spring.
Patent GB-584151-A (GB)
Title: Process for the manufacture of a mineral supplement for addition to foods
IPC: A23L7/10
Filed: 1944-10-09
Abstract: A mixture comprising dicalcium orthophosphate dihydrate and monocalcium orthophosphate, in which mixture the tendency of the dicalcium orthophosphate dihydrate to lose its water of dehydration and become caked is inhibited, is made by mixing an aqueous suspension of dicalcium orthophosphate dihydrate with a minor proportion of a molecularly dehydrated alkalo metal acid phosphate, e.g., anhydrous tetrasodium pyrophosphate, anhydrous sodium acid pyrophosphate, anhydrous sodium acid pyrophosphate, anhydrous tetrapotassium pyrophosphate, or sodium metaphosphate, insoluble form, drying the suspension, and mixing with monocalcium orthophosphate, the proportion of CaHPO4.2H2O to CaH4(PO4)2 being between 85 : 15 and 60 : 40. According to an example of the preparation of dicalcium orthophosphate dihydrate containing 0.35-0.52 per cent. of Na and 0.5-2.0 per cent. of P2O7, a slurry of lime in water and phosphoric acid solution are mixed at 40-45 DEG C. Na4P2O7 is added, the quantity being from 0.5 to 1.25 per cent. by weight of the CaHPO4.2H2O, a pH of 7.2-7.4 being maintained, by the addition of more Na4P2O7 if necessary and the temperature being maintained at 65-75 DEG C., and the precipitate is washed by decantation, filtered off, dried, e.g., by spray drying, and ground.ALSO:In making a mineral supplement containing dicalcium orthophosphate dihydrate and monocalcium orthophosphate, for cereal foods such as the products of wheat, corn, oats, rye, barley and rice, e.g., breakfast cereals, biscuits, cakes, noodles and baked goods, in which supplement the tendency of the dicalcium orthophosphate dihydrate to lose its water of hydration and thus become caked and less soluble is inhibited, an aqueous suspension of dicalcium orthophosphate dihydrate is mixed with a minor proportion of a molecularly dehydrated alkali metal acid phosphate, e.g., anhydrous tetrasodium pyrophosphate, anhydrous sodium acid pyrophosphate, anhydrous tetrapotassium pyrophosphate or sodium metaphosphate, insoluble form, the suspension is dried and mixed with monocalcium orthophosphate, the relative proportions of dicalcium orthophosphate dihydrate and monocalcium orthophosphate being between 85 to 15 and 60 to 40.
Patent GB-257248-A (GB)
Title: Improvements in and relating to coin-operated weighing apparatus
IPC: G07F17/04
Filed: 1926-08-05
Abstract: 257,248. Vogel, F. C. C., (trading as Vogel & Halke). Aug. 22, 1925, [Convention date]. Weighing-apparatus; coin action, mechanicalconnection.-In coin-operated weighing-apparatus of the platform type, the indicating mechanism of which is constituted by a scale-beam and adjustable sliding weights, weighing is prevented by a single braking member acting on a member connecting the platform to the scale-beam and adapted to be released by an inserted coin, counter or the like. The weight on the platform is transmitted to the scale-beam by rods e, e<1>, Fig. 3, connected together by a flat plate or hanger f and spring g so that there is a certain amount of dead play before the rod e acts on the plate f. The plate f passes through a slot j, Fig. 5, in an inclined plate h and is pressed against the side j<1> of the slot by the arm n of a three-armed lever m, n, o which constitutes a frictional brake and is held in braking position by a spring l. A cam q, inserted in an opensided pocket p carried by a handle s, rests on the edges of a notch y in the plate h, and, when the handle is moved about its pivot k, acts on the arm o of the three-armed lever to rotate this about the pivot k and move the arm n out of contact with the plate f. The lever is held in this position by a pin w on the arm m engaging behind a projection v of a plate u, which is hinged at u<1> and normally rests on an extension e<3> of the rod e. The handle s is returned bv a spring t and the coin drops through a wide part of the notch y. When the load is removed from the platform of the machine the rod extension e<3> lifts the plate u and releases the three-armed' lever which is returned by the spring l.
Patent GB-594889-A (GB)
Title: Extruding apparatus suitable for forming composite strips of rubber
IPC: B29C48/08
Filed: 1944-10-09
Abstract: 594,889. Extrusion machines. WINGFOOT CORPORATION. Oct. 9, 1944, No. 19393. Convention date, June 19. [Class 87 (ii)]. An extrusion apparatus for forming a composite strip of plastic material embodying portions having different physical characteristics comprises two passages through which two batches of material are fed to a common outlet 30 by screws 5, 6, each passage being formed by a plane die head surface 22 or 25 and a cavity 28 or 29 formed in a block 27. This block may be replaced by another block having different cavities, in which case the die block 31 also must be changed. The die block is held in position by two bell crank levers 44 pivoted at 45 and moved to and from the die block by pneumatic pistons 50 working in cylinders 51 pivoted at 54 on the apparatus. The composite strip, which may be of rubber and suitable for use in making tyres, drops from the outlet 30 to a conveyer and is then conveyed through a cooling tank. The Specification as open to inspection under Sect. 91 states also that the invention may be applied to a single-batch-feeding apparatus and that the two batches of material may be of the same compound. This subject-matter does not appear in the Specification as accepted.
Patent GB-1426015-A (GB)
Title: Drive for magnetic recording disc or tape cassettes
IPC: G11B23/00
Filed: 1973-04-24
Abstract: 1426015 Hub drive for cassette apparatus ARVIN INDUSTRIES Inc 24 April 1973 [24 April 1972] 19420/73 Heading G5R A ratchet clutch disposed between a drive motor 73, 75 and a magnetic disc, Figs. 1-4 (not shown) or a tape reel 62, 64 in a cassette comprises hubs 62, 72; 64, 74 having opposed surfaces with undercut, radial, complementary teeth. The teeth on the driving hubs 72, 74 are angled towards the direction of rotation to give alocking action with the complementary teeth on the other hubs. The hubs may also have a central pin-and-hole locating arrangement. The tape cassette apparatus shown also includes a latch lever 97 to retain the cassette in position against spring-loaded ejector pins (100), Fig. 5 (not shown). The disc cassette apparatus, Figs. 1-4 (not shown) includes a pivoted carriage (20) into which the cassette is inserted edgewise through an opening (24), and retained by a latch member (25) against an ejection spring (23).
Patent GB-335576-A (GB)
Title: Improvements in or relating to the impregnation of di-electric materials
IPC: H01B3/00
Filed: 1929-06-25
Abstract: 335,576. General Engineering Co. (Radcliffe), Ltd., and Taylor, S. June 25,1929. Condensers.-Di-electric materials are cooled after impregnation by being subjected to the direct cooling action of a current of dehydrated air, preferably in a jacketed chamber. A plant for effecting the cooling is shown in the figure in which the closed casing d is divided horizontally to form a circulating passage or air passing from the fan e the cooler f, drier g, to alternative chambers h<2> and thence by the return passage above to the fan. Reference has been directed by the Comptroller to Specifications 14073/05, [Class 29, Cooling &c.], and 309,079.
Patent GB-440494-A (GB)
Title: Improvements in and relating to automatic volume control in radio receiving apparatus
IPC: H03G3/26
Filed: 1934-07-02
Abstract: 440,494. Valve circuits for wireless reception. MURPHY RADIO, Ltd., and MOXON, L. A., 62, Brook Street, Hanover Square, London. July 2, 1934, No 19474. [Class 40 (v)] In order to facilitate aural tuning an automatic volume control bias is derived which is dependent both on the signal strength and on the difference between the carrier frequency and the frequency to which the receiver is tuned. As shown, the intermediate frequency output of a circuit 2 is fed to a coupled circuit 21 and signal detector 3 and also through a condenser 4 to the grid of a volume control valve 1. The output of valve 1 is fed through condenser 7 to an A.V.C. rectifier 9 with delay bias source 14 and load resistance 8, the D.C. output voltage of which controls the gain of preceding valves of the receiver through the filter 10, 11 and lead 12. The output circuit 16 of valve 1 is also coupled to a sharply tuned circuit 15 feeding a rectifier 17 whose load resistance 18 is in the grid circuit of valve 1. A delay bias proportional to signal strength is applied to the rectifier 17 from the load resistance 22 of a rectifier 20 fed from a tapping on the circuit 21, or a fixed delay bias which is also the steady grid bias of valve 1 may be used. When no signal is being received the amplification of valve 1 is high and an excessive degree of A.V.C. is produced by the rectifier 9 which is reduced to the normal degree only when the signal is exactly tuned, and the bias of valve 1 is therefore great. This action therefore gives interchannel noise suppression and accurate aural tuning.
Patent GB-199963-A (GB)
Title: Improvements in the outlet fittings for sinks or the like
IPC: E03C1/26
Filed: 1922-07-15
Abstract: 199,963. Smith, H. F. July 15, 1922. Sink waste fittings.-In waste fittings for sinks of the type shown the cross piece 9 is formed with shouldered ends 10, 11 to engage with perforated depressed portions of the cupped flange 3.