baber/WOPTO huggingface dataset:
Patent GB-896948-A (GB)
Title: Improvements in or relating to emulsifying devices
IPC: A23D7/02
Filed: 1958-11-13
Abstract: A pressurized liquid enters through bore 2 and passes into annular passage 8 creating a partial vacuum in annular chamber 26 which draws another liquid in through bore 27.  The <PICT:0896948/III/1> mixture of the two liquids passes through the diffuser 15, guide ring 16 to drive turbine wheel 17.  The beater member driven by this turbine will split the drops of the liquid mixture before the emulsion is discharged at 25.  The mixing ratio of the liquids may be varied by displacing nozzle 3 by means of screw 12.
Patent GB-412589-A (GB)
Title: Improvements in or relating to mills for grinding flour and the like
IPC: B02C4/38
Filed: 1932-12-29
Abstract: 412,589. Roller mills. VERNON, H. W., and SPILLERS, Ltd., 40, St. Mary Axe, London. Dec. 29, 1932, No. 36805. [Class 59.] The movable roller of a roller mill is supplied with fluid pressure from a central source for the uniform adjustment of the bearings at the two ends of the roller, the fluid pressure being relievable at will adjacent the roller or at the mill. As shown a pump a, Fig. 1, supplies liquid to an accumulator b and the pressure is transmitted through pressure regulating valve g to a conduit e from which branches f, provided with stop valves h, are led to each bearing of the moving roller of the mill. Each roller i, Fig. 2, is movable by a plunger l bearing on a flat portion of a lever arm j, the plunger being adjustable laterally on brackets m by screwed rods o to vary the leverage on the arm j. The fluid is led from a stop-valve p to a pressure regulating valve q connected by pipes q<1> to the plunger l at each end of the roller. The valve q is connected by linkage to a hand-lever r whereby the valve supplies pressure fluid to the plungers l or opens them to exhaust through the pipe q<3>. The lever r may be connected to a lever r<4> operating a clutch k<1> by which the feed rollers k are thrown into gear, the position of the lever r<4> being adjustable in relation to the lever r by a screwed rod r<5>. By moving the plunger l laterally the pressure at each end of a roller may be varied or the pressure of one set of rolls varied in relation to the other rolls. The accumulator may be dispensed with.
Patent GB-446116-A (GB)
Title: Improvements in locks and latches
IPC: E05B55/00
Filed: 1934-12-24
Abstract: 446,116. Locks. ASH, J., ROGERS, A., and ROGERS, A. L., Ashtree Works, Pargeter Street, Walsall. Dec. 24, 1934, No. 36937. [Class 44] A lock or latch having a sliding latch bolt and a key-operated member adapted to be moved in one direction to effect the locking of the latch bolt in its shot position and to be moved in the opposite direction to effect the retraction of the bolt has the key-operated mechanism arranged to one side of the latch bolt with the key positioned between them and a projecting arm on the key-operated member co-operates with the latch bolt to retract it. A spring-pressed sliding latch 2 has a sloped shoulder 8 adapted to be engaged by a bent up lug 11 on a pivoted lever 9. This lever has a second lug 12 engaged by a hole 13 in a plate 14 slotted at 16 to slide upon a fixed pin 17 when a notch 18 in the lower edge of the plate is engaged by a key 19. A locking lever 15 pivoted on the pin 17 has a flange engaged by the key and has a projection 21 which engages the lug 12 in both the locked and unlocked positions of the lever 9. When the sliding plate 14 is moved to unlock the latch a further movement of the key in the unlocking direction causes the key to engage a projection 28 on the plate 14, and a projection 24 on the plate engages a lug 25 on a lever 26 to effect retraction of the bolt. The latch bolt may have a double bevelled nose. The latch may be manually retracted by a push button acting through levers 33, 35, 29.
Patent GB-1426373-A (GB)
Title: Washing machines
IPC: D06F37/22
Filed: 1973-08-03
Abstract: 1426373 Washing machines PHILIPS GLOEILAMPENFABRIEKEN NV 3 Aug 1973 [7 Aug 1972] 36941/73 Heading D1A [Also in Division F2] A friction damper arrangement for a sprung tub assembly of a washing machine comprises a flat plate 3 engaged by a pair of opposed friction pads 24 supported at the free ends 12, 13 of a spring member (5) having legs 7, 8 joined by a crosspiece 6, the axis of the crosspiece being parallel to the plane of the plate 3 and perpendicular to the axis of the free ends. The spring may be bent from circular, hexagonal or square section material and the friction pads are mounted on parts 23 supported through hemispherical or resilient annular members mounted on the free ends. The cross-piece is held loosely or as a friction fit between two opposed channel members (14), (15) (Fig. 4, not shown).
Patent GB-1169544-A (GB)
Title: Improvements relating to the preparation of Catalysts
Inventor: BOURNE KENNETH HUGH
IPC: B01J23/889
Filed: 1966-08-18
Abstract: 1,169,544. Ion-exchange catalysts. BRITISH PETROLEUM CO. Ltd. 15 Aug., 1967 [18 Aug., 1966], No. 36981/66. Heading B1E. Catalysts having an iron group metal on a support are made by forming a composite of the support and iron group metal cations by an ion-exchange technique and reducing the cations to elemental metal, characterised in that the cations are reduced in the presence of a minor amount of a metal or compound thereof which is a different iron group metal, a platinum group metal, Cu, or Re. The phrase "ion-exchange technique" is defined as contacting the support with a water-soluble compound of the catalytic metal followed by a water wash to remove metal cations which have not exchanged with hydrogen ions on the support. SiO 2  gel is the specified support, it being presumed that there are surface hydroxyl groups thereon capable of participating in ion exchange.
Patent GB-1220893-A (GB)
Title: Hydroxyflavan-3,4-diols, their preparation and their pharmaceutical use
Inventor: MASQUELIER JACQUES
IPC: C07D311/30
Filed: 1968-08-02
Abstract: 1,220,893. Crystalline hydrated hydroxyflavan-3,4-diols. SOC. CIVILE DE RECHERCHE PHARMACEUTIQUE ET THERAPEUTIQUE. 2 Aug., 1968 [2 Aug., 1967; 30 Oct., 1967], No. 37032/68. Heading C2C. [Also in Division A5] Crystalline hydrated hydroxyflavan-3,4-diols are prepared by (i) reducing a flavan-4-on-3-ol in an alcoholic medium to give a reaction product containing the desired hydroxyflavan- 3,4-diol; (ii) taking up the desired hydroxyflavan-3,4-diol in a saturated aqueous solution of sodium chloride to obtain a solution; (iii) extracting the desired hydroxyflavan-3,4-diol from the said solution into a solvent immiscible therewith to obtain a solution of the desired hydroxyflavan-3,4-diol in the said immiscible solvent; (iv) adding water to the said solution in the immiscible solvent; and (v) adding chloroform, benzene, petroleum ether, ether or hexane, or a mixture of two or more of these solvents to the said solution to precipitate the desired hydrated hydroxyflavan-3,4-diol therefrom. Monomeric crystalline 5,7,3<SP>1</SP>,4<SP>1</SP>-tetrahydroxyflavan 3,4 - diol - (procyanidol)- dihydrate, thus produced, is novel.
Patent GB-522920-A (GB)
Title: Photographic photo-electric exposure meter
IPC: G01J1/42
Filed: 1938-12-21
Abstract: 522,920. Photo-electric exposure meters. VOCKENHUBER, K., and HANDLER, A. Dec. 21, 1938, No. 37137. Convention date, Dec. 22, 1937. [Class 98 (i)] [Also in Groups XXXVI and XL] The tension of the return spring of the moving coil galvanometer forming part of a photographic photoelectric exposure meter is variable to express the values other than light intensity, such as shutter speed, diaphragm opening, and emulsion sensitivity, determining the exposure. As shown, the tension of the spiral spring 7 is adjustable by turning the knob 10 on the spindle 9 having a screw thread co-operating with the fixed nut 8 and attached to the spring 7 at the end 7a. The Specification as open to inspection under Sect. 91 comprises also the use of two independently adjustable springs or a differential screw mechanism in order that two values may be expressed. This subject - matter does not appear in the Specification as accepted.
Patent GB-1477215-A (GB)
Title: Electronic timepieces
IPC: G04C3/14
Filed: 1974-08-23
Abstract: 1477215 Electronic timepieces SUWA SEIKOSHA KK 23 Aug 1974 [28 Aug 1973] 37212/74 Heading G3T In a battery powered electronic watch comprising a time standard oscillator followed by a frequency divider and an electronic drive circuit (not described) driving a rotary stepping motor coupled by a gear train to minute and hour hands, the period T of the drive pulses and hence the period of each step of the motor is arranged to  be two seconds or more, whereby to minimize current drawn from the battery, e.g. a silver battery. In practice the period is a selected value between 2 and 3<SP>1</SP>/3 seconds and the speed reduction gear ratio of the gear train is chosen so that the minute hand rotates once per hour whatever the value of period T.
Patent GB-812418-A (GB)
Title: Reversing device
IPC: B23F23/08
Filed: 1955-12-29
Abstract: 812,418. Automatic reversing gearing. ZAVODY PRESNEHO STROJIRENSTVI GOTTWALDOV NARODNI PODNIK. Dec. 29, 1955 [Dec. 29, 1954], No. 37272/55. Class 80 (2). Reversal of an output shaft 3 is effected automatically after a plurality of revolutions in either direction by an input bevel pinion 26 cooperating with opposed bevel gears 4, 5 fast on shaft 3, the pinion 26 being carried by a transversely-movable slide 25 which also carries a longitudinally movable bevel pinion 18 geared to pinion 26 and co-operating with two bevel gear quadrants 6, 7, 8, 10 fast on shaft 3 and bridged by a rounded toothed part 11 to form a continuous toothed track. Pinion 28 is moved longitudinally by a fork 35 on a spindle 36 carrying a roller 40 engaging a cam groove in a disc 15 loose on shaft 3 and carrying a stepped planet pinion 20 meshing with a gear 18 (not shown) on shaft 3 and with a stationary gear annulus 21 so that disc 15 rotates slower than shaft 3. In the position shown, pinion 26 meshes with gear 4 and pinion 28 is withdrawn, so that shaft 3 rotates in one direction until cam disc 15 causes pinion 28 to move inwards into mesh with quadrant 8 and finally to move round the curved part 11 into mesh with quadrant 10, thus moving slide 25 to the right to mesh pinion 26 with gear 5, driving shaft 3 in the opposite direction. Cam disc 15 now causes pinion 28 to be withdrawn. After a predetermined number of revolutions of shaft 3, pinion 28 moves inwards to mesh with quadrant 7, slide 25 moves to the left and pinion 26 engages gear 4 to reverse the drive, pinion 28 being then withdrawn. A roller 41 carried by slide 25 cooperates with a flange 42 on disc 15 to hold the slide in its end positions, the flange having a gap 43 to permit passage therethrough of the roller at the appropriate time.
Patent GB-941201-A (GB)
Title: Improvements in endless belt conveyors
IPC: B65G39/16
Filed: 1959-11-03
Abstract: 941,201. Endless belt conveyers. GOODMAN MANUFACTURING CO. Nov. 3, 1959 [Nov. 5, 1958; April 17, 1959; May 27, 1959; June 4, 1959], No. 37277/59. Heading B8A. In an endless belt conveyer comprising a pair of flexible cables or ropes extending along the sides of the conveyer course, supported at intervals on supporting structures and on which are hung idler roller assemblies, at least one idler roller assembly for supporting either the return run or the troughed conveying run of the belt is provided with means for automatically adjusting the roller or rollers of the assembly to urge the belt to maintain a centred position in the conveyer course. As shown, Fig. 2, a return idler roller 15 is suspended from cables 13 by means of chains 39, ropes or links so that if the return run 12 of the belt moves towards one end of the roller, that end will swing in a downstream direction and the other end will swing in an upstream direction, thereby exerting a corrective component of force on the return run to cause it to realign itself. The cables 13 are supported in U-brackets 23 mounted on telescopic stands 19 spaced apart by struts 24 and the troughing idler roller assemblies 14 are pivoted by means of links 31 to swan-necked brackets 32 secured to the cables 13, struts 34 being welded to the brackets 32. In modifications, Figs. 12, 13 (not shown), the downward divergence of the chains 39 is increased by providing a spacer bar between the chains above the roller, or by replacing the lower portion of each chain by a rigid vertical plate. In further modifications, the re-training return roller is provided with a central sleeve of increased diameter, Figs. 7, 8 (not shown), or is tapered from a maximum diameter at the centre as in a second embodiment, Figs. 9, 10, wherein each end of the shaft of the return roller 84 is provided with an extension 91 provided with a pin 90 which engages in a slot 89 in a link 88 secured to a sleeve 85 which telescopes over a tube 55 of the support stand to allow the ends of the roller to move forward and backward to effect re-training of the belt. Guide rollers 93 are provided on the shaft extensions 91. In a further embodiment, Fig. 11, the shaft 134 of each wing roller 123 of a troughing idler roller assembly is pivoted at 133 to a frame comprising a plate 129, pivoted to the central roller shaft, struts 131, 132 and an end plate 130, secured to the supporting cable 111 by means of a bracket 137 and pin 138 and provided with a slot 135 to receive the other end of the shaft 134. The roller 123 is provided with a ridge 141 which jolts the belt as it passes over it and causes the free end of the shaft 134 to move along the slot 135 to cant the wing roller in the direction of belt travel. Specifications 941,202 and 941,203 are referred to.
Patent GB-1284402-A (GB)
Title: Improvements in and relating to building constructions
Inventor: WORK JAMES
IPC: E04B5/38
Filed: 1968-08-06
Abstract: 1284402 Floor construction OMNIA INTERNATIONAL BUILDING SYSTEMS Ltd 6 Aug 1969 [6 Aug 1968] 37494/68 Heading E1W A concrete floor slab comprises a comparatively thin precast base portion 10 with longitudinal reinforcing girders partly embedded in the base portion 10 and having at least part of that portion extending from the base portion surrounded by additional precast concrete 14. The girders may have a lattice structure and be formed by welding V-shaped members 22 on either side of a central upper bar 20 at their vertices and welding further lower bars 18 to their ends, parallel to the upper bar 20. Additional girders may extend transversely to the longitudinal reinforcing girders. The reinforcing girders may be completely embedded in the precast concrete and may have apertures (36) Fig. 5 (not shown) extending through the lattice structure to facilitate keying of the in-situ applied concrete 30. In a further embodiment Fig. 9 (not shown) slabs (38) of the precast concrete may be spaced from the slab 10 embedding the upper reinforcing member 20, apertures (40) allowing access for the in-situ applied lightweight concrete 30.
Patent GB-894009-A (GB)
Title: Radiation-resistant lubricants
Filed: 1958-11-21
Abstract: A radiation-resistant lubricant comprises material obtained by alkylating benzene with propylene tetramer and recovering-fraction boiling above 250 DEG  C., e.g. boiling in the range 340-460 DEG  C. together with about 5% of a viscosity index improver, e.g. polyisobutylene, a polymethacrylate or an alkylated polystyrene, and may be thickened to a grease with a clay, silica, or sodium terephthalamate.
Patent GB-901657-A (GB)
Title: Apparatus for measuring high temperatures
IPC: G01K1/12
Filed: 1959-11-05
Abstract: 901,657. Thermo-couples. CARBORUNDUM CO. Nov. 5, 1959 [Nov. 10, 1958], No. 37527/59. Class 37. A thermo-couple device for the measurement of temperature has a protective member comprising bonded boron nitride interposed between the hot junction and the environment whose temperature is to be measured. As shown, Fig. 1, the elements of a thermo-couple comprise a closed-ended tube 12 of silicon carbide of density about 3.0 and having a free silicon content of less than 5.0% by weight, and a rod 11 of graphite, silicon carbide, or other material, having a different thermo-electric characteristic from that of the tube 12, as described in Specification 901,177. A layer 14 of boron nitride is formed on the outer surface of tube 12 by coating the tube with a slurry made of pure BN powder and O-grade sodium silicate solution, and drying the coating in air and then at 200 C. In another example, the tube is dipped three times into a more dilute slurry. Instead of sodium silicate, binders such as lignum, dextrin, phosphate binders, &c. may be used with the BN and, in addition to dipping, the slurry may be trowelled or smeared on to the tube. Fig. 3 shows a thermo-couple comprising wires 30 of e.g. W/Mo, Pt/Pt with 13% Rh, Ir/Ir-Rh alloy, mounted in ceramic insulators 31, the hot junction 34 being enclosed in a protecting tip 32 of beryllium oxide, and the assembly being disposed coaxially within a tube 35, which may be of dense SiC with a coating of BN, or which may be formed, as shown, of hot-pressed BN. The latter is preferably made in accordance with Specification 742,326; boric acid is mixed with tricalcium phosphate and water to make a stiff paste which is pelleted, dried, fired in the presence of ammonia, ground, and washed with dilute acid to remove the tricalcium phosphate. The powder is then pressed to rod-form in a graphite die at a temperature of 1800 C. and a pressure of about 500 p.s.i., the resultant rod being machined to tubular form. Protection tubes for thermocouples may also be made of BN-coated thoria, beryllia, sapphire, alumina, fused silica or other refractory material.
Patent GB-1026036-A (GB)
Title: Improvements in herbicides and herbicidal compositions
IPC: C07C31/40
Filed: 1964-09-15
Abstract: Herbicidal compositions comprise a dispersion medium and the trihydrate or monohydrate of pentafluorochloroacetone or hexafluoroacetone.  The dispersion medium is preferably an aqueous liquid or a pulverulent solid, and the composition may additionally contain a surface-active agent.  These hydrates, either alone or in admixture with a dispersion medium, may be used to inhibit the growth of, or to destroy, vegetation by applying these hydrates to said vegetation, or to the locus in which said vegetation is growing or is to be grown.
Patent GB-893570-A (GB)
Title: Electroplating apparatus
Inventor: STIEHL RAINER
IPC: C25D5/08
Filed: 1959-11-06
Abstract: 893,570. Electroplating. INDUSTRIEWERKE KARLSRUHE A.G. Nov. 6, 1959 [Dec. 19, 1958], No. 37699/59. Class 41. An apparatus for rinsing, degreasing and electroplating surfaces having any desired crosssection, e.g. guideways 1 on a lathe 2, comprises a housing 3 of an acid-resistant material which is adapted to fit in sealing-tight relationship over the guideway 1 and which carries on its underpart 7 an anode 10, the cross-section of which conforms to that of the guideway 1 to define a space which communicates by ducts 12 with the interior of the housing 3 above the anode 10. The housing 3, which may be of a transparent synthetic plastic material, comprises a coverplate 4, side and end walls 5, 6, and a base-plate 7 having spaced slots 12, and forms a seal on the surface 17 of the lathe 2 by means of an elastic synthetic plastic material 16 in a groove 15. Similar seals are formed at each end of the housing 3 one against an end face of the lathe by means of a depending wall on the housing and the other against the inclined walls of the guideway 1. A clamp 18 holds the casing 3 in position and leads 11 connect the anode 10 to a source of positive electricity. Intermediate portions of the guideway 1 are plated by a housing 3 having end walls shaped to conform to the cross-section of the guideway and making sealing contact therewith. The anode 10, Fig. 8, may have a central tube 40 into which the liquids are delivered, bores 41 leading out of the anode. The bores 41 may be inclined longitudinally of the anode. After pumping hot water and a degreasing liquid through the casing 3, a heated acid electrolyte is pumped therethrough, all the liquids entering at each end of the casing, e.g. at 20, and leaving via pipes as 23, at the top of the side 5, the degreasing liquid and the electrolyte being recirculated.
Patent GB-1512734-A (GB)
Title: Method of preparing mercaptans
IPC: C07F7/18
Filed: 1975-09-15
Abstract: 1512734 Preparing mercaptans DOW CORNING CORP 15 Sept 1975 [11 Dec 1974 10 March 1974] 37740/75 Heading C2C [Also in Division C3] Mercaptans are prepared by reacting (A) a halide of the formula RX a  with a mixture of (B) ammonia or a hydrocarbyl amine containing one N atom, no more than 6 carbon atoms and being free of aliphatic unsaturation and having a K a  of less than 1 x 10<SP>-9</SP> in aqueous solution, and H 2 S, in the mole ratio of at least one mole of H 2 S and one mole of (B) per gram-atom of halogen in (A) at a temperature of from 0‹ to 176‹ C. under autogenous pressure whereby a compound of the formula R(SH) a  is formed, in which process R is selected from aliphatic, cycloaliphatic or aralkyl hydrocarbon radicals free of aliphatic unsaturation, such hydrocarbon radicals substituted with ether, keto, carboxyl, hydroxyl, -COOR<SP>3</SP> or -OOCR<SP>3</SP> in which R<SP>3</SP> is a monovalent hydrocarbon radical free of aliphatic unsaturation.
Patent GB-772550-A (GB)
Title: Improvements in or relating to electric incandescent lamps
IPC: H01K1/30
Filed: 1954-12-31
Abstract: 772,550. Electric incandescent lamgs. SCARBOROUGH ASSOCIATES, Inc. Dec. 31, 1954 [Jan. 14, 1954], No. 37781/54. Class 39(2)  An electric incandescent lamp comprises a concave reflector 5 with a transparent closure 2 covering it to provide a sealed envelope enclosing a light-emitting element 4 of electrically conductive, high melting-point, sheet material, e.g. tungsten, having the outline of an area to be illuminated and having one of its faces directed towards said reflector, the light emitting element being arranged at a focalpoint of the reflector so that an image of it is produced at a predetermined distance from the reflector. By employing a Mangin mirror as the reflector the reflected light rays are corrected against distortion. A silver coating 6 on the rear surface of the mirror may have a protective coating of paint. The front closure 2 of glass or other transparent material is sealed, as by fusion, to the periphery of the mirror, and the sheet metal element 4 is supported within the resultant enclosure on leading- ing wires 12, 14. The front closure glass 2 may have a spherical curvature and, in order to prevent rays from the front face of the element 4 from passing directly out of the lamp, an opaque shield 17<SP>1</SP>, which may be of circular outline of a diameter slightly larger than the maximum dimension of the element 4, may be formed on, or applied to the central outer portion of the front glass 2. The sheet metal element 4 may be of rectangular outline to produce an illuminated area a, b, c, d, Fig. 3, of corresponding outline, or elements of other shapes may be used. To increase the flatness of the image of the element 4, the latter is preferably curved, as shown in Fig. 1, substantially to the same curvature as the rear reflecting surface 6. Instead of forming the reflecting mirror 5 as a diverging meniscus with spherical surfaces of different curvatures, as in the example, it may consist of concentric front and rear surfaces, with a front glass or lens having the same curvatures, Fig. 2 (not shown). The lamp is provided with the usual exhaust tube 17 which may be sealed after exhausting the air therefrom, or an inert gas such as argon or nitrogen may be admitted prior to sealing.