baber/WOPTO huggingface dataset:
Patent GB-1392617-A (GB)
Title: Liquid developer system for electrostatic copier
IPC: G03G15/10
Filed: 1972-05-19
Abstract: 1392617 Developing electrostatic latent images DICK CO AB 19 May 1972 [21 May 1971] 23781/72 Heading G2H Latent electrostatic images on a length of photoconductive or other copy material 80 are developed by being passed through an arcuate space 70 filled with a turbulently-flowing suspension of toner particles in a liquid medium. Developer is pumped from a storage tank into the space 70 through a slit which produces an outlet for pattern 82, and is discharged over lip 31 and through openings 32. Used toner is replaced by replenishment of the storage tank, and the developer is recirculated. The copy material may be of zinc oxide paper, and be employed as a lithographic printing plate after development.
Patent GB-991152-A (GB)
Title: Improvements in or relating to negistor circuit arrangements
IPC: H04B3/16
Filed: 1963-06-14
Abstract: 991,152. Impedance matching; negative impedance circuits. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. June 14, 1963 [June 19, 1962], No. 23784/63. Headings H3U and H4R. The known circuit of Fig. 1 (in which Z 1  and Z 2  represent impedances having a negative resistance part) is adapted for connection between unequal impedances (e.g. transmission lines) by dividing the primary of series transformer T 1  into two windings 12, 13 and connecting the end of one of the windings to a tapping 11 on shunt transformer T 2 . In order to obtain frequency-independent transformation, the transformation ratio between the total winding T 2  and the part between terminals 2, 11 is made equal to the ratio between windings 12 and 13. In the variable circuit of Fig. 4, the transformation ratio may be chosen by connecting terminals 27, 21 and 22, 28 or terminals 26, 22 and 23, 29. The number of turns between terminals 1 and 26 is made equal to the number of turns between terminals 7 and 28. Denoting windings by their terminals, the following transformation ratios obtain:-1,27/1,26 = 21,2/22,2 and 22,2/23,2 = 28,7/29,7. The last two ratios are made equal to the square of the first two. A balanced version of the circuit of Fig. 4 is shown.
Patent GB-713148-A (GB)
Title: Improvements in or relating to objects comprising at least one chrome-iron to glass seal
IPC: C03C27/04
Filed: 1952-09-23
Abstract: 713,148. Glass-metal seals. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Sept. 23, 1952, [Sept. 26, 1951.] No. 23836/52. Class 36. In sealing an iron member t having a surface layer 2 of chrome iron to a glass member 4, the - iron is removed from beneath the surface layer in the area of the seal, the remaining free chrome iron layer 3 being then sealed to the glass. A tubular iron member as shown may have chrome iron coatings on both the internal and external surfaces, and the invention may also be applied to iron discs or rods which are to be sealed through glass. The iron may be removed by etching, and in order to reinforce the chrome iron layers, which may be left unsupported away from the seal, the space therebetween may be filled up with glass or soldering material.
Patent GB-1082190-A (GB)
Title: Angularly adjustable coupler assembly for application to grease fittings
IPC: F16N3/12
Filed: 1966-05-27
Abstract: 1,082,190. Swivel pipe connections. E. P. SUNDHOLM. May 27, 1966 [Feb. 2, 1966]. No. 23841/66. Heading F2G. In an angularly adjustable coupler assembly for application to a grease fitting, including grease-fitting coupler means 15 and a grease supply pipe 14 interconnected by a swivel connector 33 the latter comprises a body 24 provided with a passage 25 communicating with the pipe and a stud 40 surrounded by a collar 42 on a swivel 26 having a passage 28 in communication with the passage 25 via bores 50, 56 in the stud. The collar is formed with an annular portion 44 which seats in a recess 41 at the base of the stud, and the annular recesses 54a, 55a receive gaskets 54, 55. A sleeve 31 biased by a spring 35 has a shoulder 37 which, by retraction and subsequent release of the sleeve, bears against the surface 39 of the swivel 26 to hold the swivel in a desired angular position.
Patent GB-590109-A (GB)
Title: Loose-leaf catalogue binder
IPC: B42F13/02
Filed: 1945-09-17
Abstract: 590,109. Loose-leaf binders. RICHOLD, S. L. Sept. 17, 1945, No. 23907. [Class 146 (i)] A loose-leaf catalogue binder comprises a square back cover, and a leaf holding section attached to the back, such section including a flap with a further flap foldable into a U- shape hinged thereto, the outer arms of the U forming guards which are slotted to receive an elastic band by means of which the leaves are held between the guards. A cover A made from stiffish material has a square back C to which is attached a section with a flange F either side, one extended and shaped to form a flap B and the other extended and folded at H to form a U-shape having a square back D with guards 9 either side slotted at S top and bottom. An elastic band E fits round the slotted guards to secure thereto similarly slotted loose-leat papers, the flap B then being tucked under the front guard 9.
Patent GB-1046216-A (GB)
Title: Improvements relating to pressurised dispensing containers
Inventor: FEATHERSTONE CHARLES BECKHAM
IPC: B65D83/14
Filed: 1964-06-10
Abstract: 1,046,216. Pressurized dispensing containers. RICHMOND AEROSOLS Ltd. June 8, 1965 [June 10, 1964], No. 24007/64. Heading F1R. In a pressurized dispensing container comprising an outer container and an inner polythene tube, the tube is secured to the outer container by means of a valved cap which secures a flange on the tube to the beaded rim of the container. A piston having upper and lower peripheral flanges is mounted in the tube and is in communication with the annular space between container and tube holding propellant gas via slots in the tube.
Patent GB-669429-A (GB)
Title: Improvement in large diameter pipe coupling
IPC: F16L21/04
Filed: 1949-09-19
Abstract: 669,429. Pipe joints. DRESSER INDUSTRIES, Inc. Sept. 19, 1949 [May 13, 1949], No. 24032/49. Class 99 (i) In a pipe joint in which packing rings 5 are pressed against or in the ends of a sleeve 4 bridging the joint by bolted compression rings 7, the sleeve is provided intermediate its ends with a reinforcing ring 24 having openings to receive the bolts 41. The ring may be integral with the sleeve, or shrunk thereon and welded thereto. The bolts may be screwed into the ring, or slots 35 and recesses 37 are provided in the ring for the bolts and bolt-heads. The recesses may be staggered and have inclined walls 45 to facilitate assembly. The bolts may extend between the compression rings through passages in the ring. Specification 655,866 is referred to.
Patent GB-1007196-A (GB)
Title: Improvements in or relating to collapsible freight containers
Inventor: CHANTLER DONALD AVERY
IPC: B65D88/52
Filed: 1963-06-17
Abstract: 1,007,196. Collapsible freight containers. DURAMIN ENGINEERING CO. Ltd. April 16, 1964 [June 17, 1963], No. 24061/63. Heading B8P. A collapsible container comprises a base member 10, a roof member 15, opposite side members 11 hinged to the base and roof members, front and rear end members 12, 13 each of which is hinged to the base, the front member 12 having doors 14, and each side member 11 being articulated along a centre line 23 parallel to the base to permit inward collapsing movement on top of the opposite end members when they have been turned inwardly. The frame of the base is covered by light alloy sheeting or wood to provide a floor, slots 19 being formed in the frame to permit the entry of the tines of a fork truck for lifting purposes. The lower frames 21 of sides 11 are connected along a hinge line 23a to a wall or flange 24 extending upwards from the base member 10, the height of the flange being equal to the combined thickness of the end members. The inner surface of each of the frames 20, 21 is covered by a light alloy sheeting 25 and, when the container is in its assembled condition, the channel members of adjacent frames are held together by bolts (not shown). The door 14 is hingedly mounted to a frame member 30 at hinges 31 on each side, with the lower edge of the member 30 hingedly connected along a hinge line 32 to the base member 10. When collapsed, the container has the roof connected to the base by locking pins (not shown) and can be used as a load bearing platform.
Patent GB-587303-A (GB)
Title: Improvements in or relating to compositions containing primary aromatic amine-aldehyde resins
IPC: B24D3/28
Filed: 1944-12-01
Abstract: A heat-hardened resin composition is made by mixing a primary p aromatic amine-aldehyde resin with a wetting and plasticising compound having the formula <FORM:0587303/IV/1> where R is hydrogen or an aryl, alky or aralkyl group containing 7 carbon atoms or less, or is a heterocyclic carbon radical containing 4 carbon atoms, namely di-2-chlorethyl formal, di - 2 - chlorethyl benzal, di - 2 - chlorethyl enanthal, di-2-chlorethyl propanal, di-2-chlorethyl furfural or di-2-chlorethyl butyral, shaping and heat-treating the shaped mix.  A filler such as abrasive grains, for example emery, corundum, dense "regular" fused alumina, porous white fused alumina, silicon carbide and other hard carbides, quartz, glass, garnet or diamonds may be included in the dry mix.  The primary aromatic amine, such as aniline, ortho, meta- or para-toluidine or diamino diphenyl methane is reacted with excess of formaldehyde, e.g. 20 per cent above the stoichiometric proportions, or some of the formaldehyde is added after the initial condensation as paraformaldehyde or hexamethylene tetramine, to yield a thermoplastic resin.  An organic compound containing chlorine, bromine or iodine and capable of splitting off hydrogen halide at elevated temperatures, such as polyvinyl chloride, polyvinylidene dichloride, rubber hydrochloride, chlorinated rubber, chlorinated polyisobutylene, halogen substituted paraffins and aliphatic chlorhydrins containing less than six carbon atoms, may be added to the mix as additional cross-linking agents. Abrasive wheels are made by wetting abrasive grains in a mixing pan with the wetting liquid, adding powdered fusible resin, mixing, charging the "dry granular mix" into moulds and curing the "green" wheel produced in an oven.  In the examples, grinding wheels are made employing di-2-chlorethyl formal as the wetting and cross-linking agent for the primary aromatic amine-formaldehyde resins halogenated cross-linking agents are employed.  Specifications 538,406, 561,902 and 563,344 are referred to.
Patent GB-187100-A (GB)
Title: Improvements in seasoning tobacco-pipes
IPC: A24F11/00
Filed: 1921-09-10
Abstract: 187,100. Whalley, J. B. Sept. 10, 1021. Tobacco pipes.-The interior of the bowl is carbonized by a core heated electrically or otherwise, or by a alowpipe or other flame, and any objectionable products in the charred lining are washed out or dissolved by superheated steam or a solvent such as alcohol, ether, benzine, or acetone. The pores of the lining may be filled with graphite, carbon black, or sugar. The pipe is afterwards polished.
Patent GB-1268373-A (GB)
Title: Production of filter material
Inventor: HEAD IAN WALKER HANBURY
IPC: B01D46/10
Filed: 1968-05-21
Abstract: 1,268,373. Moving band air filter medium. VOKES Ltd. 21 Aug., 1969 [21 May, 1968], No. 24234/68. Heading B1T. [Also in Divisions B5 and D1] Filter material for a moving band air filter is prepared from a length of expanded glass fibre web impregnated with a resin binder and compressed to the necessary thickness. The side edge zones 2 are compressed to a smaller thickness than that of the main portion 1. The resin binder is cured prior to or during the compression by heating. Additional binder such as powdered polyethylene may be applied to the zones 2 before compression. Retaining elements 3 may be provided extending longitudinally along the side edge zones by compression of the parts 2 between plates having profiles corresponding to the shape of 3. Flexible stiffness material 6 such as cord may be secured in the grooves by means of a water based acrylic resin and a web of flexible material 7 bonded to 2. Alternatively liquid plastics material may be introduced at spaced points along the groove 3 and hardened. In another embodiment a length of cord is secured to the flat side edge zone by means of flexible material which is laid over the cord and adhered on either side to the side edge zone 2.
Patent GB-694123-A (GB)
Title: Preparation of artificial filaments, yarns, ribbons and like filamentary materials
IPC: D01D1/04
Filed: 1950-10-04
Abstract: <PICT:0694123/IV (a)/1> Artificial filaments, yarns, ribbons and like filamentary materials are obtained by continuously passing a flexible band of indefinitely great length and uniform cross-section and of a filament-forming material, e.g. polyamides, polysulphonamides, polyurethanes and polytriazoles, through feed means at a constant rate into a melting tube leading to a spinning jet, jamming of the band being prevented by abstracting heat therefrom after it leaves the feed means and as it enters the melting tube. As shown, the band of filament-forming material is passed through guide 11 and is forwarded at a constant rate by feed wheels 12, 13 through guide 14 and a water-cooled collar 16 into a melting tube 18 provided with electric heating coils 21.  The molten material enters well 25 from which it is forced through filter 27 and spinning jet 28.  The melting tube entrance is flushed with an inert gas, e.g. nitrogen, from opposed channels 23.  A nitrogen stream from ring 31 also blankets the face of the spinning jet. The band and central passageway 19 of the melting tube may be of rectangular, circular, oval or other cross-section.  The walls near the entrance of the melting tube may be maintained at a temperature higher than that over the remainder of the tube as described in Specification 694,160.
Patent GB-871427-A (GB)
Title: Improvements in or relating to electronic amplifiers
Inventor: BAXANDALL PETER JAMES
IPC: H03F1/36
Filed: 1956-08-08
Abstract: 871,427. Valve amplifying circuits. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Nov. 4, 1957 [Aug. 8, 1956], No. 24267/58. Class 40(6) A wideband, multistage amplifier of the virtual earth type has the resistive feedback path Rfb shunted by capacitance C#b so as to swamp the effect of stray capacitance and the output point, from which the feedback is taken, is shunted by a separate capacitance Ca to compensate for the increase in time constant of the feedback path. The time constants of output and feedback paths are preferably equal. The amplifier may be fed from a capacitance source such as a storage tube or television camera. Cfb is made 5 % of Cin. Conventional interstage potential dividers are included. Instability due to disconnection of input may be prevented by connecting a capacitor across Rk or a resistor in series with Ca. Fig. 3 (not shown) gives frequency response curves. Specification 604,671 is referred to.
Patent GB-1274175-A (GB)
Title: Improvements in or relating to cheese curd processing
IPC: A01J25/11
Filed: 1971-04-19
Abstract: 1,274,175. Curds. HOLVRIEKA INTERNATIONAL NV. 19 April, 1971 [18 March, 1970], No. 24268/71. Heading A2B. In a process for draining and densifying curd from a mixture of curd and whey comprising raising the mixture in a vertical channel by means of a pump, forcing the curd at the upper end of the channel into at least one curd vessel passing said end, separating the curd in the vessel from_the curd at the upper end of the channel when the vessel is filled, moving the filled vessel to a position superjacent a cheese receptacle and emptying the vessel into the receptacle, the whey is discharged continuously at the boundary between the upper end of the channel and the lower end if the vessel, and the curd is loaded by a compression member in both the channel and the vessel. Fig. 1 shows an apparatus comprising channel 1 up which curd entering via 6 is pumped by 3, whey being discharged at boundary 7, the curd being loaded in vessel 11 by piston 14. A plurality of vessels are attached to spokes 19 and may rotate about hub 20, full vessels being discharged into receptacles 27.
Patent GB-1139383-A (GB)
Title: Thermosetting material from epoxy resins and hydroxy containing resins
Inventor: SORANSON WAYNE RICHARD
IPC: C08L63/00
Filed: 1967-05-26
Abstract: 1,139,383. Epoxy resin-vinyl chloride copolymer compositions. CONTINENTAL OIL CO. 26 May, 1967, No. 24504/67. Headings C3B and C3P. [Also in Division B2] A coating composition comprises a mixture of 5-90% by weight of an epoxy resin with 95- 10% of a copolymer containing 50-98% by weight of vinyl chloride and 2-50% of comonomers containing at least one hydroxy group or group hydrolysable to a hydroxy group and a curing agent for the epoxy resin; the epoxy resin is defined as being other than a monomeric polyepoxide having at least two cyclohexene oxide groups, but is otherwise conventional, as is the curing agent. In the examples a diglycidyl ether of a bisphenol is used and the curing agent is silicon tetrafluoride, or a carboxylic acid anhydride optionally mixed with a quaternary ammonium halide, while the copolymer is vinyl chloride-vinyl acetate or a partially hydrolysed derivative. The mixtures are dissolved in tetrahydrofuran or 2-butanone and used to coat polyethylene, glass or steel, the coatings being baked after the solvent has evaporated.
Patent GB-263556-A (GB)
Title: Improvements in or connected with hygienic or like evaporative bodies or blocks, andholders for same
IPC: A61L9/12
Filed: 1925-10-03
Abstract: 263,556. Walker, Ltd., W. & F., and Freestone, J. T. Oct. 3, 1925. Disinfectants and deodorants; disinfecting and d e o d o r i z i n g . -An hygienic or sanitary article comprises an inner core 2 of wood &c. and an outer part or block of evaporative hygienic material, the cora being supported on a carrier. The bore of the block 1 and the core 2 are tapered slightly so as to effect firm engagement. In the form shown, the article is suspended from a wall bracket 3, 4. The hole 6 in the core is of such a depth that the screw-threaded end 5 of the rod 3 is entirely concealed. The rod 3 may pass through the core, in which case a nut is provided at its end; the lower end of the core is recessed to receive the nut, which may be further concealed by a cover. Naphthaline may be used as the evaporative material, which may also contain camphoraceous ingredients, carbolic acid, and some perfumed deodorant.
Patent GB-922392-A (GB)
Title: Improvements in and relating to thermostat devices
Inventor: LEE ALAN STUART
IPC: G05D23/01
Filed: 1958-07-31
Abstract: 922,392. Viscosity control of temperature. ENGLISH ELECTRIC CO. Ltd. July 23, 1959 [July 31, 1958], No. 24678/58. Class 106 (2). [Also in Groups XIII and XXIX] A flow control valve in the lubricating oil circuit of an engine, or a flow control element constituted by air louvres of an oil-heated radiator, is controlled in accordance with viscosity changes of the oil consequent on changes of temperature by passing the oil through a laminor flow resistance in series with a sharp edged orifice and using the pressure charge across the resistance to operate a pressureresponsive actuator connected to the valve or louvres to keep the temperature constant. In Fig. 1 the air louvres of an oil-heated radiator (not shown) are connected with the rod 5 of an actuating piston 4 sliding on a fixed cylinder 3 inside a cylinder 1, an annular space between the cylinder 1 and piston 4 constituting the laminor-flow resistance. Oil is fed through a connection 6 to an annular space 10 at one end of the resistance and leaves the other end of the piston through the sharp-edged orifice 7 the total pressure drop across the device being kept constant by a pressurizing by-pass valve 9. The interior of the fixed cylinder 3 is maintained at exhaust pressure through a pipe 12. In Fig. 2, both cooled and uncooled lubricating oil is supplied to a valve having a housing 103, direct through a conduit 104 and through an oil cooler 105, the mixing and distribution of the two into a common outlet 108, leading to an engine, being controlled by a piston valve 116 actuated by a piston 101. An annular clearance space between this piston and the housing 103 constitutes a viscosity resistance to one end of which is fed oil from the common outlet, through a passage 120. The oil from the other end of the piston is exhausted through a sharp-edged orifice 118, so that the varying pressure difference set up across the piston owing to changes in viscosity of the oil varies the relative amounts of hot and cold oil respectively being mixed and sent to the engine. In each of the embodiments, the movement of the actuating piston varies the effective length of the annular space constituting the viscosity resistance so that after initial movement a position of balance of the actuating piston is reached.
Patent GB-1517522-A (GB)
Title: Extraction of metal values from leached slurries
IPC: C22B15/00
Filed: 1975-06-10
Abstract: 1517522 Solvent-in-pulp ion exchange KENNECOTT COPPER CORP 10 June 1975 [13 June 1974] 24743/75 Heading C1A One or more of the metal values copper and nickel are recovered from a manganese containing ore, by introducing a stream of ore into a reaction vessel containing cuprous ions in an aqueous ammoniacal ammonium carbonate solution to enable the cuprous ions to reduce the manganese oxides in the ore and solubilize the copper and nickel values, delivering the reduced manganese ore slurry from the reaction vessel to a mixer/ settler, lowering the pH of the slurry to at least 10 but not lower than 8À5, maintaining the amount of solid in the slurry in the mixer/settler at 20% by weight or less, introducing a liquid ion exchange organic extractant, e.g. an oxime, capable of extracting copper and nickel values from the slurry into the mixer/settler, the volume of slurry and organic extractant being maintained at a ratio so that the organic extractant is the continuous phase in the mixer/settler, and extracting copper and/or nickel metal values from the slurry with the extractant. The metal values may be stripped from the loaded organic phase with sulphuric acid.
Patent GB-1319874-A (GB)
Title: Self-guiding vehicle for following a predetermined path
IPC: B62D1/24
Filed: 1971-04-19
Abstract: 1319874 Steering motor vehicles COMPAGNIE GENERALE D'ELECTRICITE and C VARICHON 19 April 1971 [20 March 1970 11 Dec 1970] 24766/71 Heading B7H A vehicle having all four wheels steerable is guided for reversible travel above a single track or between two tracks R1, R2 by two pairs of sensors P1, P2 and P3, P4 per axle, only the pair in advance of the respective axle, with respect to the direction of motion a, being operative. The sensors P1, P2 ... are moved into and out of engagement with the tracks by shock-absorbing rams S1, S2 ... which operate automatically when the vehicle direction is reversed. The sensor movement is fed by linkwork m, n, r, s to the tie rods B of the steering mechanism. A servo mechanism A may assist the steering effort. Manual steering gear, which may be rack-and-pinion F, is provided for travel away from the tracks and may be duplicated at the opposite end of the vehicle.
Patent GB-865585-A (GB)
Title: Improvements in show cards
Inventor: HUNNEMAN REGINALD VERNON
IPC: G09F1/06
Filed: 1957-08-06
Abstract: 865,585. Showcards. HUBNERS Ltd. Aug. 6, 1957, No. 24807/57. Class 3(2) A display card made from a single blank, (see also Fig. 1 not shown) comprises a display panel 1 and wing members 4 which are held in position by panels 7, 8 and are provided with portions 2 adhesively secured to the said panel 1, the members 4 serving as struts and being connected to the panels 7, 8 by a slot and tongue connection.