baber/WOPTO huggingface dataset:
Patent GB-1403495-A (GB)
Title: Production of acrylic resins
IPC: C09D5/03
Filed: 1973-02-26
Abstract: 1403495 Pulverulent acrylic resins ROHM GmbH 26 Feb 1973 [25 Feb 1972] 9354/73 Heading C3P Pulverulent thermosetting acrylic resins are prepared by dispersing a solution of the resin in a solvent in water containing a dispersing agent, azeotropically distilling the mixture to remove the solvent and then removing the resin from the remaining water. The distillation is preferably conducted between 40‹ and 80‹ C. if necessary under reduced pressure to prevent premature cross-linking and the resulting bead polymer can be further ground and used for powder coating processes. In examples copolymers are methyl methacrylate/n - butyl acrylate/N - butoxymethyl methacrylamide; metyl acrylate/ethyl methacrylate/N-butoxymethylmethacrylamide/ methacrylic acid; methyl methacrylate/styrene/ methyl acrylate/N-butoxymethyl methacrylamide/2-hydroxyethyl acrylate and styrene/2- ethylhexyl acrylate/N-methoxymethyl methacrylamide. These were prepared in solution in toluene/n-butanol, ethylacetate/isopropanol or methyl ethyl ketone/n-heptane/ethylene glycol monomethyl ether mixtures using t.butyl peroctoate or perpivalate as initiator. The resulting solutions are dispersed in water containing as dispersing agents a styrene/methacrylic acid copolymer or finely divided aluminium hydroxide with sodium petroleum sulphonate, the solvent is distilled off and the polymer is separated from water by centrifuging.
Patent GB-1495607-A (GB)
Title: Headlamp adjusting arrangement
IPC: F21V17/00
Filed: 1975-03-07
Abstract: 1495607 Nuts DUCELLIER et Co 7 March 1975 [20 March 1974] 9522/75 Heading F2H [Also in Division F4]  In a headlamp adjusting arrangement comprising adjustable bearings each constituted by an adjusting screw co-operating with a fixed bearing and with a nut 7 connected to a tongue 6 secured to the headlamp, each nut 7 is a moulded plastics plate having a smooth hole 11 therethrough and having a slot 14 which opens into the hole 11 to form at least one pair of resilient arms which are shaped, as at 13, to anchor resiliently into a complementary recess 16 formed at the free end of the associated tongue. As shown, guide grooves 12, having in their bases curved bosses 13 concentric with the hole 11, are disposed on opposite sides of the nut 7 in which are accommodated the edges 16a of the recess in the tongue when the nut is pushed into the tongue recess. When the nut is thus mounted, the adjusting screw may be engaged in the hole 11, and when the screw is rotated it forms a thread in the smooth hole thus compressing the arms of the nut between the screw and the tongue recess 16. In a further embodiment, Fig. 4, the nut has two pairs of resilient arms which co-operate with two recesses formed in a U-shaped portion of the tongue.
Patent GB-566254-A (GB)
Title: Improvements relating to bolts and like externally screw-threaded members
IPC: F16B39/34
Filed: 1943-06-15
Abstract: 566,254. Self - locking bolts &c. BIRCHALL, F. June 15, 1943, No. 9527. [Class 89 (i)] Bolts, set-screws, studs, &c. have the screw - threaded portion formed with an annular recess 11 filled with a ring of resilient rubber or rubber-like material moulded into the recess and preferably bonded to the walls thereof and provided with an incompletely formed thread 14 continuing that of the screw. The thread is formed thicker, but is truncated so that the cross-sectional area is about equal to that of the standard thread. According to the Provisional Specification, the bottom surface of the recess may be knurled, milled, or serrated &c. to provide keying for the inserted material, and the recess may be formed in the unthreaded part of the screw.
Patent GB-577480-A (GB)
Title: Improvements in or relating to the manufacture of pest control compositions
Filed: 1944-05-18
Abstract: Insecticidal preparations are obtained by mixing by mechanical means a compound of the general formula R1(R2) CH-CX3, R1 being an organic radical containing at least three carbon atoms, R2 being an organic radical containing at least 5 carbon atoms and X being chlorine or bromine, with sufficient of an aqueous solution or suspension of a solid water-miscible dispersing agent for the said compound to form a paste.  Suitable compounds are p-p1-dimethyl- or p-p1-dichloro-diphenyltrichlorethane.  Suitable dispersing agents include soap, goulac, saponine, lime casein, and sulphonated oils, long-chain fatty acids, petroleum products or long-chain aliphatic alcohols.  The admixture may be effected at a temperature either above or below the melting point of the active compound.  The two components of the mixture may be ground together in an edge runner mill until a smooth paste is obtained which may then be dried, reground to a fine powder and sieved. The resulting powder can be dispersed in water.  A proportion of volatile solvent, e.g., methanol, may be added during the grinding operation, this solvent being removed in the subsequent drying operation.  Specifications 547,874, 566,387 and 573,832 are referred to.
Patent GB-785210-A (GB)
Title: Combustion chambers
Inventor: MARTIN PETER
IPC: F23C7/02
Filed: 1954-04-01
Abstract: 785,210. Generating combustion products under pressure. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. March 22, 1955 [April 1, 1954], No. 9563/54. Class 51 (1). In an internal-combustion turbine or ram jet the air supply to the combustion chamber is divided into two streams by injecting a controlling jet of air into the main stream. As shown, the combustion chamber 1 encloses the flame tube 2 into which liquid fuel is injected from the nozzle 4. Compressed air is supplied to the nozzle 7 and emerges as a core-shaped jet which opposes the entry of the main air stream into 2. The deflected air passes into the annular space between 1 and 2 and enters 2 through the holes 2a. The control jet may be automatically adjusted in accordance with engine speed or temperature. Specification 662,434 is referred to.
Patent GB-1030421-A (GB)
Title: Improvements in or relating to mass-spectroscopy
IPC: H01J49/18
Filed: 1963-03-11
Abstract: 1,030,421. Mass spectrometers. ATLAS MESSUND ANALYSENTECHNIK G.m.b.H. March 11, 1963 [March 10, 1962], No. 9593/63. Heading H1D. In mass-spectrometers of the type having photographic plates as detectors, the exposure times of the plates are graduated by a method wherein the number of ion current impulses reaching a plate is preselected and used for cutting off the ion current, and wherein the charge generated on the plate, or a charge proportional thereto, is measured during the exposure time. As shown, a mass-spectrometer comprises an ion source a, a deflecting system b, c, and a collector d having a slit g through which part of the ion beam A passes to impinge on a photographic plate f. The number of ion current impulses reaching the plate f is preselected by a device h which cuts off the impulse generator i for the ion source a when the selected number of current impulses is reached. During the exposure time, the charge generated on the plate is measured by capacitor k and device m.
Patent GB-751140-A (GB)
Title: Improvements relating to change-speed gearing
IPC: F16D67/00
Filed: 1954-04-01
Abstract: 751,140. Change-speed gearing. DAIMLER-BENZ AKT.-GES. April 1, 1954 [April 1, 1953], No. 9603/54. Class 80(2) A countershaft gear 20...27 and planetary gear 28, 30...35 between driving and driven shafts 10 34 are combined so that one power path 20, 21, 25, 27 through the countershaft gear drives the planet carrier 28 and another power path 20, 22, 26, 30 drives an internally toothed annulus or. as shown, the sun-gear 31, these power paths used together giving a very low forward ratio, or, used separately and with the planetary gear locked by a clutch 35, giving two further low forward ratios, while planet carrier can be stationed by a brake 36 for reverse. The gear is driven, through a fluid coupling 11 which is bypassed when a clutch 14 is engaged to drive a shaft 15, simultaneou engagement of the planet gear clutch 35 giving direct drive. The countershaft 20 is driven through the fluid coupling, a hollow shaft 17 and gears 18, 19. A first overdrive ratio is obtained by keeping the clutch 14 engaged, to drive the planet carrier 28 directly, and at the same time driving through the fluid coupling and the train 20, 22, 26, 30 to the sun-gear 31. A second overdrive ratio is obtained by applying a brake 37 to hold the gear 26 and sun gear 31 stationary and driving directly through the clutch 14. When the brake 36 is applied to hold the gear 25, the shaft 27 and the planet carrier stationary for reverse, drive passes through the fluid coupling and the train 20, 22, 26 to the sun-gear. The power paths in the countershaft train are selected by engagement of hydraulically operated disc clutches 23 24 similar to the clutch 14. In the form shown, the clutch 35 is between the sungear 31 and the annulus 33, fast with the driven shaft 34, of the planet gear. In a modification (Fig. 2, not shown), the clutch 35 is between the planet carrier and the annulus, and the brake 36 is applied directly to the annulus. In another modification (Fig. 3, not shown), the clutch 35 is between the planet carrier and the sun-gear. In yet another modification (Fig. 4 also not shown), the shaft 15 extends right through the gear and is fast with the driven shaft 34, the gears 25. 26, the shaft 27, the sun-gear 31 &c., rotating around it.
Patent GB-1154113-A (GB)
Title: Mechanical Seal Assembly.
IPC: F16J15/38
Filed: 1968-02-28
Abstract: 1,154,113. Mechanical seals. BORG-WARNER CORP. 28 Feb., 1968 [6 July, 1967], No. 9680/68. Heading F2B. A seal assembly for a rotary pump shaft 25 where it enters through the pump housing comprises a shaft sleeve 48 sealed to and releasably mounted on the shaft for rotation therewith, a cartridge 29 sealed to and releasably mounted on the housing and surrounding the sleeve 48 and provided with an annular recess 40 opening radially inwardly, inboard mechanical seal means 71 and outboard mechanical seal means 41 for preventing leakage between the recess 40 and the pump housing and atmosphere respectively; the sleeve 48, cartridge 29 and the seal means 41 and 71 being removable as a unit over the free end of the shaft 25, as shown in Fig. 5. The sleeve 48 is keyed to the shaft by a key 49 and located axially by a spring ring 116 in a groove 117 in the shaft. The cartridge 29 comprises an annular body 38 secured by screws 35 to a flange 30 secured by bolts 31 to a stuffing-box 24 integral with the pump housing. The seal means 41 comprises an axially slidable rotary sealing ring 54 sealed to the sleeve 48 by a cup packing 58 and urged by springs 70 into facial contact with a sealing ring 42 prevented from rotating by a pin 47 thereon engaging a groove 46 in the body 38. Springs 70 are compressed between a pusher ring 59 and a driver ring 62 which is keyed to the sleeve 48 and has a pin 63 engaging a slot 64 in the ring 59. A tang 67 on the ring 54 engages the slot 64. The seal means 71 is similar to the seal means 41 and comprises a rotary sealing ring 75 urged by springs into facial contact with a stationary sealing ring 72. A sleeve member 86 surrounds and is welded to the body 38 and has a flange 87 sealed to the stuffing-box 24 by an 0-ring 88. A flange 85 on the inboard end of the sleeve 48 abuts an impeller 119 keyed to the shaft 25. A labyrinth seal in the form of grooves 132 on the shaft is provided between the pump housing and the stuffing-box 24. The pressure in the recess 40 is maintained at substantially the mean of the stuffing-box pressure and atmosphere by means of two pressure reducing cells 92 and 97 formed by two helical goroves in the body 38. Liquid at substantially stuffing-box pressure in a groove 101 flows through passages 102 and 103, cooling coil 104, passage 90 and pressure reducing cell 92 to the recess 40. From the latter liquid flows through passage 95, pressure reducing cell 97 and passages 98, 99 and 100 to atmosphere or a region of other low pressure. Liquid in the stuffing-box is circulated by the impeller 119 through a cooling coil 126 which, together with the coil 104, is located in a jacket (127, Fig. 3) through which coolant is circulated from an external source. By removing the intermediate coupler (13, Fig. 3) between the motor driving shaft and the shaft 25, coupling member 107, spring ring 116 and bolts 21, the cartridge 29 together with the sleeve 48 and mechanical seals 41 and 71 can be withdrawn over the end 105 of the shaft 25 as shown in Fig. 5.
Patent GB-141901-A (GB)
Title: Method of and means for facilitating the starting of internal combustion engines
IPC: F01L13/08
Filed: 1919-04-16
Abstract: 141,901. Albrecht, J. A. April 16, 1919. Starting.-A priming-device comprises a priming-cup b or other petrol-supply device, an automatic valve c<1> for admitting the petrol to the cylinder on the suction stroke, and an automatic pressure-relief valve f which opens on the compression stroke. The device is mounted on a compression cock a, and the priming-cup has a cover b' and may have air inlets in the upper part. A number of priming-cups may be supplied by a pipe from the petrol tank or a separate reservoir, the compression cocks being coupled for simultaneous actuation from the dash.
Patent GB-551621-A (GB)
Title: Improvements in and relating to stencil sheets
IPC: B41N1/24
Filed: 1941-07-30
Abstract: 551,621. Stencils. GESTETNER, Ltd., D., and SLATER, A. V. July 30, 1941, No. 9706. [Class 100 (ii)] A stencil sheet for duplicating purposes comprises an undyed or unpigmented porous sheet base impregnated or coated with a composition of such character that in the operation of forming a stencil in the composition, e.g. by a style or typewriter, portions of the composition will be transferred to the backing sheet to form an impression thereon, leaving a residual quantity on the porous sheet which appears dark in contrast with the unbroken surface of the composition. The composition may be of a micro-crystalline character which is destroyed by the pressure of the type &c. giving the composition a darker tone, or the composition may contain a dark pigment or dye, e.g. a water soluble dye such as nigrosme, dispersed therein, which under the action of the type &c. is caused to dye locally the porous sheet base of the stencil. The stencil composition contains a light coloured pigment whereby the stencilled matter is easily legible when the stencil is mounted on the inked surface of the duplicating machines.
Patent GB-513073-A (GB)
Title: Improvements in and relating to combination locks
IPC: E05B37/12
Filed: 1938-03-30
Abstract: 513,073. Locking switches. SCHULZ, O. E. March 30, 1938, No. 9712. Convention date, Jan. 22. [Class 38 (v)] [Also in Groups XXV and XXXVIII] In a locking mechanism having notched permutation discs 4 and a push-button 1 with lateral projections 11 adapted to enter the notches, electrical contacts are provided on the faces 31 of the discs 4 and at the bottoms of false notches 32 to complete an alarm circuit if the pushbutton is operated with the combination incorrectly formed. The push-button may operate an electric switch such as the ignition switch of an automobile.
Patent GB-590312-A (GB)
Title: Improvements in or relating to box ends
IPC: B27M3/34
Filed: 1945-04-18
Abstract: 590,312. Ends for boxes. FIDDES, E. S. O. and MACKINNON, L. (Representatives of FIDDES, J.). April 18, 1945, No. 9715. [Class 18] A box end constructed as a frame bordering a panel has two horizontal frame battens 8, 9 checked at 6 to form projections 7 and two' vertical battens 3, 4 with checks 12, 13 into which the projections 7 fit. The checks 12, 13 may have parallel sides 14 or may be dovetailed. Sliding members 17 which may be labels or cards which after being addressed may be coated are positioned in slots. Specification 557,170 is referred to.
Patent GB-371148-A (GB)
Title: Improvements in connection with the projection of cinematographic films
IPC: G02B27/14
Filed: 1931-03-31
Abstract: 371,148. Optical-projection apparatus. BAKER, L. A., 85, Frobisher Road, Hornsey, and WELD, H., 13, Arlington Street, St. James's, both in London. March 31, 1931, No. 9722. [Class 97 (i).] In the projection of two superposed images on to a screen E, from one kinematograph film, by means of a transmitting reflector A and a reflector B, the reflector A is coloured blue, green, yellow, amber, blue and yellow, green and yellow, or green and amber and the reflector B consists of a silvered mirror or a highly polished metallic surface &c. The reflector A may comprise a container for a coloured liquid. According to the Provisional Specification the screen on to which the images are projected may be coloured yellow or a combination of colours which cause the image to appear blue, green, yellow, or a combination of these colours.
Patent GB-505138-A (GB)
Title: Improvements relating to capsules
IPC: B65D41/04
Filed: 1938-03-30
Abstract: 505,138. Capsules; collapsable tubes; syringes; stoppers. OWEN, H. W. W. March 30, 1938, No. 9757. [Class 81 (i)] [Also in Group XVII] A gelatine or like capsule 1 for containing petrol, lubricating-oil, or other liquid is formed with a hole 4 closed by a pin 6 and provided with a removable and replaceable cap 9 for holding the pin in the closing position. The pin may be formed with an enlarged head or, as shown, may be surrounded by a rubber or gelatine washer 7, which may be compressed into the recess in the cap so that the pin is retained in the cap on removal from the capsule. The. cap may be secured on the capsule by tapering screw threads which may be preformed on the pip of the capsule or may be cut thereon by the cap when first applied The whole capsule, or the pip thereof, may be toughened, as by treatment with formaldehyde, and way be hardened by greater dehydration than is usual. After formation of the screw thread the capsule is allowed to soften by exposure to moist air. Specification 15664/96, [Class 11], is referred to.
Patent GB-929291-A (GB)
Title: Improvements in or relating to methods and means for securing anchoring ties in castmaterials
IPC: E04B1/41
Filed: 1960-03-18
Abstract: 929,291. Ties on shuttering for setting in concrete. A. FELDMAN. June 16, 1961 [March 18, 1960], No. 9795/60. Class 20 (2). One end 9 of an anchor tie 1 for securing facings is set in concrete by holding the anchor in a slot in rubber members secured to the shuttering 7. In Fig. 1, the anchor is L-shaped and one arm 8 is held in a slot 6 formed by flanges 5 of rubber members 2. In Fig. 3, the anchor 1 is held in a slot 13 in a rubber plug 14 inserted in an aperture in the shuttering. The anchor may pass through a slot in the shuttering and a slot in a plug secured to the outside of the shuttering.
Patent GB-1423974-A (GB)
Title: Casing for a rotary trochoidal-piston engine
IPC: F01C1/10
Filed: 1974-03-05
Abstract: 1423974 Rotary positive - displacement machines DORNIER GmbH 5 March 1974 [11 May 1973] 9800/74 Heading F1F To facilitate manufacture of a casing 1 for a trochoidal-piston engine the profile of the circumferential wall of each working chamber between sealing strips 2 is an arc 1a, or 1b, of a circle centred at 1' on the symmetry axis of the chamber, the arc being approximately the same as the corresponding portion of a curve, which is either the outer envelope curve of the profile of the piston 5 or a curve 6 on the outer side of, and at a constant radial distance from, said envelope curve. Each arc may be tangential to the envelope curve, or curve 6, at two points disposed symmetrically about the symmetry axis.
Patent GB-428155-A (GB)
Title: Improvements in and relating to valve-holders
IPC: H01R33/76
Filed: 1934-03-29
Abstract: 428,155. Thermionic valve - holders; wireless receiving apparatus. IDEAL WERKE AKT.-GES. FUR DRAHTLOSE TELEPHONIE, Hohensch÷nhausen, Berlin. March 29, 1934, No. 9823. Convention date, March 29, 1933. [Classes 39 (i) and 40 (v)] A valve holder comprises an open unit adapted to be secured to the chassis or similar portion of a radio receiver or the like and has a number of plates or walls lying in different planes, one of which carries sockets for the valve contacts and another of which carries connectors for other components. As shown in Fig. 1 in plan view from below, the unit consists of an upper plate 2 and a side plate 3. The plate 2 carries the valve holder 4 with a clip 23, Fig. 2, for a screening element and three fixing holes 8, 9, 10. The wall 3 carries a number of connecting springs 11 which are arranged in step formation as shown in side elevation in Fig. 2. Further connecting springs 16, 17 may be used for connection to external components. Terminals 18-21 are provided in the wall 3 for aerial, earth, and loud-speaker connections. Small components may be connected directly between the springs 5 and the connectors 11. The unit is cast or moulded from good insulating material, preferably ceramic.
Patent GB-1466348-A (GB)
Title: Air bearing device
IPC: A61C1/05
Filed: 1974-03-05
Abstract: 1466348 Turbines - fluid bearings NIPPON SEIKO KK 5 March 1974 [6 March 1973]  9840/74 Heading FIT [Also in Divisions A5 and F2] An aerostatic bearing 2 supporting a rotatable shaft 4 in a dental handpiece is formed of porous material e.g. sintered metal, ceramic material or porous synthetic resin. The bearing may consist of two bushes 21, 22 which engage with two flanged sleeves 81, 82 provided on the shaft so as to transmit axial as well as radial thrust. The bushes may be supported in the housing 1 of the handpiece by O-rings 3. The shaft may carry a turbine blade 41 by which the shaft is driven.
Patent GB-559529-A (GB)
Title: Improvements relating to the control of electric motors driving boiler auxiliaries
IPC: H02P5/46
Filed: 1942-07-16
Abstract: 559,529. Control of several D.C. motors. ENGLISH ELECTRIC CO.. Ltd., and TABB, R. P. E. July 16, 1942, No. 9899. [Class 38 (iii)] A Ward-Leonard generator 7, in series with boosters 8, 9, 10, supplies motors driving boiler auxilaries; the motors 1, 2 drive induced and forced draught fans, the motors 3, 3 drive fuel feeding devices and if required motors 4, 5 are used to drive another set of induced and forced draught fans. The six motors are controlled in unison by the generator field regulator 15, the pairs of motors 1, 2 ; 3, 3 ; and 4, 5 are independently controlled by booster field potentiometers 11, 12 and 13 and the induced fan motors 1, 4 are controlled relatively to the forced fan motors 2, 5 by a field regulator 14. The maximum E.M.F. of the boosters is approximately equal to, and can either aid or oppose, that of the generator 7. Similar sets of motors are used for other boilers of a bank, the motor and booster fields being supplied from a constant voltage exciter 17, and the generator fields being supplied via a booster exciter 18, so that all sets can be regulated together by adjustment of a potentiometer 19.
Patent GB-550010-A (GB)
Title: Improvements in or relating to teat cups for mechanical milking equipment
IPC: A01J5/08
Filed: 1941-07-17
Abstract: 550,010. Cow-milkers. ALFA-LAVAL CO., Ltd. and CLARK, T. L. July 17,1941, No. 9988/42. Divided out of 550,027, [Group X]. [Class 84] In a teat cup; an inflation 4 consisting of length of rubber tube is stretched over a nozzle 6 which is forcec outwardly by means of an assembling stick 9 to engage an inturned bead 3 on the shell 1 in a groove 7 in the nozzle and thereby clamp the tube 4 in position. The upper end of the tube 4 is streched over a ring 5 and engaged in the end 8 of the shell so that the tube is slightly stretched. The nozzle 6 has a forced outwardly too far. To dissassemble the teat cup, the nozzle is forced inwards by pressure upon any solid surface
Patent GB-180145-A (GB)
Title: Improvements in or connected with cutting machines for use in mining coal and other minerals
IPC: E21C31/00
Filed: 1921-04-05
Abstract: 180,145. Mavor & Coulson, Ltd., and Miller, P. R. April 5, 1921. Coal-cutting machines.-In a machine wherein a cutter bar B or cutter chain is slued by gearing operated through a transverse shaft E, this shaft is driven by means of an anchor chain G connected to the haulage rope D and passing over a sprocket wheel F detachably fixed to either end of the shaft.