baber/WOPTO huggingface dataset:
Patent GB-771927-A (GB)
Title: Method of improving flow of pulp in paper making machines
IPC: D21F1/02
Filed: 1954-07-19
Abstract: 771,927. Flow-box outlets of paper-making machines. ONTARIO PAPER CO., Ltd. July 19, 1954 [Aug. 6, 1953], No. 20986/54. Class 96. A non-streamlined obstruction, or obstructions, e.g. a cylinder 5, over half inch in diameter is or are placed at a position of high Reynolds number, e.g. above 10,000, in the pulp 6 flowing between the slice lip 1 and the apron plate 3 so that a high frequency series of vortices 9 is generated and affects the whole of the pulp flowing to the wire-cloth of a paper-making machine. The obstruction 5 may be adjustably positioned. In a modification, there are two hemi-cylindrical obstructions projecting, one from the apron plate, and the other, which is opposite to it and which may form a hinge part, from the slice lip.
Patent GB-187742-A (GB)
Title: Improvements in and relating to rollers for spinning and drawing textile fibres
IPC: D01H5/74
Filed: 1921-08-08
Abstract: 187,742. British Thomson - Houston Co., Ltd., (General Electric Co.). Aug. 8, 1921. Rollers for spinning and drawing textile fibres in the maufacture of twine, yarn, carpet backing and like materials, of the kind comprising a body of textile fibre compressed between end plates, are constructed so that the fibres form the bearing-surface for the, supporting-shaft and, for this purpose, are compressed to a greater extent at the centre of the roller than at the periphery. Moreover, by making the periphery relatively soft the drawing of the fibres is facilitated. Fibre such as cotton, in the form of batting or fabric is impregnated with starch or like material and cut into the form of discs 3 which are stacked in a pile upon one or each side of which pads 4 and dished or flat end plates 5 are placed and the whole subjected to the action of a press and held under compression in a clamp while rivets, screws or like means 8 are fitted.
Patent GB-1279786-A (GB)
Title: Tris(dimethylhydrogensiloxy)-3,3,3-trifluoropropylsilane, vinyltriacetoxysilane adducts
IPC: C07F7/18
Filed: 1971-04-19
Abstract: 1279786 Fluoroalkyl acyloxy siloxanes DOW CORNING CORP 19 April 1971 [20 April 1970] 21024/71 Headings C3S and C3T Novel compounds of the formula wherein at least one X denotes a radical -CH 2 CH 2 Si(O.COCH 3 ) 3  and the remainder denote hydrogen or a radical -CH 2 CH 2 Si- (O.COCH 3 ) 3 , are prepared by reacting appropriate stoichiometric quantities of vinyltriacetoxysilane and tris-(dimethylhydrogensiloxy)- 3,3,3-trifluoropropylsilane in presence of a chloroplatinic acid catalyst. Uses.-As primers in adhering silicone elastomers, particularly those based on poly-3,3,3- trifluoropropylmethylsiloxane to titanium, and as components in primer compositions also comprising organic solvent, tetrabutyltitanate and ethylpolysilicate, for use in adhering silicone elastomers to polyurethanes and epoxy resins.
Patent GB-297925-A (GB)
Title: Improvements in or relating to tobacco leaf stemming machines
IPC: A24B5/06
Filed: 1927-08-09
Abstract: 297,925. White, A. E., (Gough Stemming Machine Corporation). Aug. 9, 1927. Tobacco. - Stripping is effected by a pair of belts 50, 51 running transversely to the direction in which the leaves are fed through the machine. An inclined guide plate 77 assures the proper alignment with regard to the butting mechanism which consists of a brush 30 having a bevelled leading end 31. It rotates above a stationary surface 36, which may be part of the table top 1, and is at the same level as the surface of the card-clothed belt 9. A plate 38, Fig. 3, causes the leaves to enter the card-clothing. Its forward end is upturned, and as a whole it is downwardly inclined towards its spring-pressed exit end. Adjacent to the edge of the surface 36 are guide wires 46 extending thence across the stripping mechanism, anl running between the parallel rows of the teeth of the card-clothing 10. The stripping belts 50, 51 are of elastic material such as rubber covered canvas and the pulleys 52, 53 may be similarly covered while the shaft 57 of the upper rear pulley is mounted in adjustable brackets. To aid in retaining the blade of the leaf a guide 45, similar to the guide 38, and a brush 70 are mounted above the card-clothing 10. After stemming, the blades pass beneath the belt 20 which, in conjunction with the wires 46 release them from the clothing 10. In a modification, Fig. 6, the stationary guide 77 is replaced by a belt 86 the surface of which moves at the same rate as the feeding belt 82. The butting mechanism 30 is omitted, and the stripping belts 97 are forwardly inclined to the conveyer belts instead of being at right angles as in the first construction. The guide plate 45 is also replaced by a belt 107 of card-clothing driven either by one of the pulleys about which it passes or by the engagement of its surface with that of the clothing beneath it. Both upper and lower cloLhings are cleaned at the exit end of the machine by wire drums 112.
Patent GB-390390-A (GB)
Title: Improvements in or relating to radio and like transmitting systems
IPC: H03C1/52
Filed: 1932-07-26
Abstract: 390,390. Wireless transmitting systems. MARCONI'S WIRELESS TELE GRAPH CO., Ltd., Marconi House, Strand, London.-(Assignees of Plebanski, J. ; 32, Wspolna, Warsaw.) Julv 26, 1932, No. 21093. Convention date, June 13. [Class 40 (v).] Amplitude modulation for radio transmission is effected by (1) modulating a carrier wave in any usual manner, and dividing the output into two channels, (2). combining with one channel a pure carrier wave displaced in phase to such an extent that the resultant pure carrier is displaced 90‹ forward, (3) similarly treating the other channel to displace its pure carrier 90‹ backward, (4) recombining the two channels so, that the pure carrier disappears and optionally (5) restoring a carrier in the same phase as it existed after stage (1). After stages (2) and (3) there is substantially no amplitude modulation present, and amplification is therefore facilitated. The system can be utilized for eliminating harmonics of the carrier, especially the second harmonic. As shown, a drive oscillator D feeds an amplifier UA and modulator Mo, the output from which is divided into two channels leading to further amplifiers. MAl, MA2. These amplifiers are also fed with pure carrier waves from the amplifier UA, the phase, being advanced in one channel and retarded in the other, so that at the output of the amplifier MA1, the pure carrier wave is 90‹ in advance, and at the output of the amplifier MA2 is 90‹ retarded, relative to the original phase of the carrier. The two outputs are combined in the load circuit A, which may be an aerial or an aerial feeder ; or the outputs may be radiated from separate aerials. If it is desired to transmit a carrier wave as well as the side-bands, this carrier may be supplied to the circuit A in its original phase through amplifiers A4, MA3. Specifications 270,749, 283,190, and 297,253, [all in Class 40 (v), Wireless signalling &c.], are referred to.
Patent GB-625509-A (GB)
Title: Improvements in bumper bars for motor vehicles
IPC: B60R19/42
Filed: 1947-08-02
Abstract: 625,509. Vehicle bumpers. AUSTIN MOTOR CO., Ltd., and LORD, L. P. Aug. 2,1947, No. 21132. [Class 103 (ii)] A bumper bar for a motor vehicle beside extending across an end of the vehicle A has side portions c<SP>1</SP> extending along the sides of the wings and attached thereto. The rear portion C of the bumper is supported from the chassis E by two metal strips F (one shown). A U- shaped metal strip G is connected to C<SP>1</SP> and E by bolts h<SP>1</SP> and h respectively. The rear portion C<SP>1</SP> is also supported by strengthening- bars F<SP>1</SP>. The bumper is of channel-section with a longitudinal groove in its outer face to accommodate the bolt heads. In a modification (Fig. 4, not shown) part C<SP>1</SP> is carried by a hinged portion of the wing which covers the greater part of the wheel.
Patent GB-358586-A (GB)
Title: Locks for road vehicle doors
IPC: E05C9/04
Filed: 1930-07-12
Abstract: 358,586. Vehicle door fastenings. TRIUMPH CYCLE CO., Ltd., Priory Street, and ANDREWS, E., 8, West Avenue, Stoke Park, both in Coventry. July 12, 1930, No. 21163. Grant of Patent opposed. [Class 44.] Door fastenings for the doors of road vehicles of the kind having a pair of doors hinged at their remote edges and abutting at their adjacent edges without an intermediate door pillar comprise catches at the upper and lower edges of each door, the catches of each door being simultanously operable by a single operating means and independently of the catches of the other door. Fig. 2 shows catches 4 shot by springs 9 and having connecting rods 10 with hooked ends 11 engaging slots in links 12 pivoted to oppositely disposed arms 14 on a collar secured on the square spindle 16 of an operating handle, not shown. A flat striking plate has a bevel 43 leading to a pair of apertures 44 to receive the catches of the two doors. Fig. 3 shows a form in which the catch engages a notch in a projection 26 secured by an attachment plate 25, and the transmission rod 29 is a vehicle-wheel spoke the head of which engages a slot in a sliding plate 30. The pair of plates 30 are moved outwards by compression springs 33 and are retracted by follower arms on spindle 16 engaging shoulders 31 on the plates. A modification is described in which the catches are guided in tubes supported by angle brackets fitting the corners of the doors, and are withdrawn by cables connected to diametrically opposite points on a disc mounted on the square handle-spindle. The striking plate, Fig. 5, is an angle-plate with apertures 42 to receive door-positioning pins on the catch-supporting brackets, and with catch-receiving apertures divided into two parts by rollers 24, the catches engaging in one part before the door is properly closed, to provide a safety catch, and passing the rollers and engaging the other part when the door is fully closed.
Patent GB-224023-A (GB)
Title: Improvements in surface finishing tools for white metal or the like
IPC: B24B39/02
Filed: 1923-08-23
Abstract: 224,023. Forber, W. Aug. 23, 1923. Bearings.-The surface of a white metal bearing is finished and hardened by means of a tool comprising a recessed member 1 which is mounted on a shank 1<a> having a central pin 3, the member 1 being slotted to receive tapered rollers 12 adjusted by means of a tapered sleeve 4 fitting on the pin 3. The front of the member 1 is closed by a cap 9 secured by screws 15 and slotted at 13 to support the pins 14 of the rollers. The rear pins 19 engage slots in the shank and retaining-rings 17, 18 provided at the front and rear ends respectively of the tool. The sleeve 4 is actuated to adjust the rollers by means of a threaded stud 7 screwed into the cap 9 and secured to the sleeve by a screw 6 a locking nut 16 being also provided. In a modification the rollers may be of non- uniform taper to facilitate insertion of the tool or the rollers may be cylindrical and actuated by cams.
Patent GB-507978-A (GB)
Title: Improvements in and relating to spindle drives for machine tools, more especially lathes
IPC: B23Q5/00
Filed: 1938-07-19
Abstract: 507,978. Spindle - driving arrangements for lathes, drilling-machines, etc.; change-speed gearing. BOHRINGER GES., GEB. July 19, 1938, No. 21384. Convention date, July 19, 1937. [Class 83 (iii)] [Also in Group XXIV] A spindle drive for lathe, drilling-machine, or like machine tool, comprises a continuously variable driving shaft 14 (driven from a variable-speed electric motor or from a fluid transmission gear 13) which may be connected to the working spindle 18 either (a) through a belt transmission mechanism 16, 17, 19 for a high-speed drive, or (b) through a gear train 24, 22, 23, 20, for a low-speed drive.
Patent GB-949934-A (GB)
Title: New halogen-androstenes and process for their manufacture
IPC: C07J75/00
Filed: 1960-06-17
Abstract: The invention comprises steroids of the formula: <FORM:0949934/C2/1> (wherein X is chlorine or fluorine, X1 is chlorine or bromine, R is hydrogen or an acyl radical and R1 is hydrogen or a saturated or unsaturated aliphatic hydrocarbon radical) and the corresponding 1-dehydro compounds; and their preparation by treatment of the corresponding 9 (11)- dehydro steroids with hydrogen chloride or hydrogen fluoride in the presence of chlorine or bromine or an agent yielding chlorine or bromine. If desired the product may be dehydrogenated in the 1:2-position by chemical or microbiological methods and/or esterified or hydrolysed in the 17-position.  Suitable halogenating agents are, for example, N-chloro- or N-bromo-derivatives of open-chain or cyclic acid amides or imides, advantageously used in the presence of lithium chloride, in a solvent such as a lower aliphatic carboxylic acid, a cyclic ether or a halogenated hydrocarbon, or mixtures thereof. Examples are given, and a list of acids suitable for the preparation of 17-esters is provided. Di-esters of the 3-enol forms of some of the products are described.  9 (11)-Dehydro-17a -propyl-testosterone is obtained by converting 9(11)-dehydro-androstenedione to the 3-enol ethyl ether, reacting the latter with allyl magnesium chloride, and hydrogenating the thus obtained 9 (11)-dehydro -17a - allyl-testosterone with Raney nickel in alcohol. 9 (11)-Dehydro-17a -isobutyl-testosterone is prepared similarly. 9 (11)-Dehydro-testosterone acetate, propionate, trimethylacetate, cyclopentylpropionate, semidiglycollate, semitetrahydrophthallate and undecylenate and the corresponding 1-dehydro compounds are prepared from the free 17-ols and the appropriate acid chlorides or anhydrides.  The halogeno-androstenes of the invention, which are stated to have a high anabolic action, may be made up into pharmaceutical compositions with suitable solid or liquid carriers. They may take the form of oily or aqueous solutions, which may be contained in ampoules, suspensions, emulsions, depot preparations, tablets, dragees, salves or creams. They may also contain preserving, wetting, stabilizing or emulsifying agents, salts for regulating the osmotic pressure or buffers.
Patent GB-1537168-A (GB)
Title: Internal combustion engine with plural spark plugs for each combustion chamber and exhaust gas recirculation circui
IPC: F02B47/10
Filed: 1976-05-24
Abstract: 1537168 Recirculating IC engine exhaust gases NISSAN MOTOR CO Ltd 24 May 1976 [22 May 1975 27 May 1975] 21448/76 Heading F1B An I.C. engine comprises at least two simultaneously energizable spark-plugs 36 per combustion chamber (34) Fig. 2 (not shown) and a recirculation passage 30 connecting an exhaust line 20, 22, 24 and an induction passage 14 of the engine, there being means 32 for controlling the exhaust gas recirculation rate so that the maximum recirculation rate is in the range from 12% to 40% by volume of the air flow-rate into the combustion chambers when the operational condition of the engine is in a normal range. The means 32 includes a diaphragm 48 responsive to vacuum in a carburetter Venturi 12a to adjust a valve-member 44 in the passage 30 to vary the flow cross-section of a throat 42a of a sonic nozzle, the flow velocity being sonic when the pressure drop across the nozzle is greater than 120 mmHg which occurs during normal operation. so that the flow-rate during normal operation depends only upon the cross-section and not upon the pressure drop. The cross-section increases with carburetter Venturi vacuum so that the recirculation rate is a constant percentage during normal operation. Since carburetter Venturi vacuum is too low under some operating conditions to actuate diaphragm 48, a vacuum amplifier 56 is provided which modulates the vacuum from an external vacuum source, in response to the vacuum at the Venturi 12a.
Patent GB-430775-A (GB)
Title: An improved massage device
IPC: A61H9/00
Filed: 1934-07-23
Abstract: 430,775. Cupping-appliances. HARDMAN, W.A., 48, South Portland Avenue, Brooklyn, New York, U.S.A. July 23, 1934, No. 21567. Convention date, July 21, 1933. [Class 81 (ii)] A massage device comprises a flexible suction cup from which air can be exhausted provided with reinforcements wlthin the cup and around the open end. As shown in Fig. 1, a cup of semi-soft rubber 1 is provided with a rigid arched liner 8 of metal or the like and a rigid external band 17 which is loosely fitted in a groove 7. A lateral handle 10 integral with the cup 1 is provided with a tube 14 which is connected to a source of vacuum. The sides of the handle are flanked by straps 15 which are integral with the band 17. The liner 8 is loosely fitting and rests on an internal shoulder 5. A small slot 19 formed in a peripheral bead 6 permits an easy breaking of the vacuum for removal by lifting the handle 10. According to a modification, Fig. 4, a cup 1<a> terminates in a neck 20 and is provided with a liner 8a having a sleeve extension which fits the bore 2 which serves as a conduit for the exhaustion of air. A handle 25 is provided. In this modification, if desired, the rigid external ring may be tightly embedded in its grove. A corresponding rigid interior ring which is embedded in a groove within the cup may be provided. The exterior and interior rings may be connected by fastening means passing through the intervening rubber annulus.
Patent GB-904390-A (GB)
Title: New cured epoxy resins and process for preparing the same
IPC: C08G59/42
Filed: 1960-06-21
Abstract: Polyepoxides are cured by reacting them with 1,2,3,4-cyclopentanetetracarboxylic dianhydride.  The preferred polyepoxides are:-bis-cyclopentenyl ether diepoxides, dicyclopentadiene diepoxides, 3,4-epoxy-6-methylcyclohexylmethyl-3,4-epoxy-6-methyl cyclo hexane-carboxylate, and bis-phenol A/epichlorhydrin reaction products.ALSO:It is stated that 1,2,3,4-cyclopentane tetra carboxylic di-anhydride was prepared by the nitric acid oxidation of the anhydride of 4,5-dicarboxylic bicycloheptene (carbic anhydride). The dianhydride is used to cure polyepoxides (see Group IV(a)).
Patent GB-217473-A (GB)
Title: Improvements relating to teapots and analogous vessels
IPC: A47G19/14
Filed: 1923-08-29
Abstract: 217,473. Cliff, B. Aug. 29, 1923. Pots. - A tea-pot or like vessel of hexagonal or other polygonal shape in plan and having inwardly curved sides has the spout so formed that one longitudinal half lies within the contour of the sides of the pot, the other half lying outside. The spout has a bevelled lip 9. A handle formed with a finger opening is provided at the opposite side to the spout and at the upper end is connected to a sloping flange 14 surrounding the mouth of the pot. The lid, which rests upon a supporting flange 16, has a rear lug 21 to prevent accidental displacement, and the top of the handle 22 may be flush with the flange 19 to facilitate stacking of the pots superposed. The pots may be of earthenware, as in the form shown, or of metal.
Patent GB-756897-A (GB)
Title: Improvements in or relating to the cold separation of gas mixtures
IPC: F25J3/04
Filed: 1954-07-26
Abstract: 756,897. Cold separation of gas mixtures. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. July 26, 1954 [July 24, 1953], No. 21822/54. Class 8(2). In a low temperature gas mixture fractionating apparatus conprising a column 50, Fig. 6, from the head of which a low boiling point fraction e.g., nitrogen from air is fed through a duct 59 to a condensation chamber adjacent the freezing space of a gas refrigerator 60 of the reversed hot gas engine kind and is in part returned as reflux, the condensed nitrogen is divided into two portions in a chosen ratio which is independent of the thermal output of the refrigerator, one part being the reflux and the other being drawn off as product. Division of condensate from the refrigerator supplied through a duct 62 to a container 63 within column insulation 67 is effected in two channels 64, 65 soldered to a metal cylinder 66 and each being separately heated by electric elements 69, 68 whereby plugs of vapour so formed force liquid nitrogen up the channels in the desired ratio ; channel 64 delivering to an outlet 73 and channel 65 to the interior of the column. Alternatively, division may be effected in a channel 17, Fig. 2, formed in the condensation chamber of the refrigerator by means of fixed and adjustable partitions 21, 22, located between outlets 18, 19 so as to provide channel portions 23, 24. In a further modification the channel comprises two adjacent parallel outlets with a pivoted partition at their junction. Air is normally drawn through purification chambers 57, 56 and forced through heat exchangers 55, 52 into the column 50 at just above atmospheric pressure by a compresser 54 but the latter may be dispensed with and the air aspirated by a liquid lock 74 in the liquid nitrogen withdrawal duct 73. Specifications 695,857 [Group XIII] and 756,895 are referred to.
Patent GB-930292-A (GB)
Title: Production of crystalline boron phosphide
IPC: C30B9/12
Filed: 1960-06-22
Abstract: Single crystals of a boron phosphide are produced by cooling a solution of elementary boron, a boron alloy, or a metal boride and elementary phosphorus, a phosphorus alloy, or a metal phosphide, in molten Cu, Al, Ga, In, Si, Ti, Zr, Ge, Cr, Mn, Fe, Co, Ni, Ru, Rh, Pd, Os, Ir, or Pt, or a molten alloy of any two, or more, of these, from a temperature below 1800 DEG C. to freezing point of the system at 1 DEG -300 DEG C./hr.  The phosphorus and boron may be alloyed, or combined, with any of the above metals and boron may be alloyed, or combined, with carbon.  The boron content may be 0,1-50% and may be completely dissolved before phosphorus in at least stoichiometric amount is added, although simultaneous addition is also possible. The P vapour may be distilled in and may be in an inert carrier, e.g. argon.  The whole operation maybe conducted as a zone melting by forming a molten band in a body drawn through an induction coil.  The cooling rate maybe 5 DEG -60 DEG C./hr. with Fe matrix, and 3 DEG -60 DEG C./hr. with Cu or Ni. Cubic BP, or monoclinic B6P to B40P, may be recovered by dissolving remaining constituents in HCl, HNO3, H2SO4, or aqua regia.  Specification 923,860 is referred to.
Patent GB-1427699-A (GB)
Title: Rocket propellants
IPC: C06B45/12
Filed: 1970-05-06
Abstract: 1427699 Rocker propellants IMPERIAL METAL INDUSTRIES (KYNOCH) Ltd 19 April 1971 [6 May 1970] 21857/70 Heading F3A A rocket propellant charge is bonded to a combustion inhibition layer which comprises an elastomeric material and at least 50% by weight of a filler comprising carbon or an oxide, hydroxide, carbonate, sulphate, or nitrate of Be, Mg, Ca, Zn, Sr, Cd, Ba, B, Al, Si, Ti, As, Sb, Bi, Fe, Co, or Ni. The elastomeric material may be natural rubber, a silicone-based elastomer, polyethylene, a chloro-sulphonated polyethylene elastomer, polyurethane, a butyl rubber elastomer, a vinyl acetate copolymer with or without methacrylic acid, or an ethylenepropylene terpolymer. Polyvinyl formal is used to bond the combustion inhibition material to a charge of nitrocellulose-nitroglycerine cast propellant. In examples the elastomer is chloro-sulphonated polyethylene or natural rubber and the filler is iron oxide or barium sulphate.
Patent GB-1533540-A (GB)
Title: Grinding glass
IPC: B24B9/12
Filed: 1977-05-24
Abstract: 1533540 Grinding glass WALTER POTING INGENIEURBURO GmbH & CO KG 24 May 1977 [28 May 1976] 21931/77 Heading B3D A method of decoratively grinding glass objects, such as drinking glasses comprises using two grinding wheels 3, 4 successively, a transition being made from one wheel to the other by a relative movement between the wheels and the glass object 5, the wheels being mounted on the same spindle. The second grinding wheel may be used to add decoration to that produced by the first wheel or to from a different decoration, and the wheels may be of different grades and have different sections. Either the grinding spindle or the clamp for the object may be movable to present the object successively to the wheels. The grinding spindle may be pivotable about an axis 7 passing through the spindle axis and the point of contact between the wheel 3 and the object 5.