baber/WOPTO huggingface dataset:
Patent GB-1093861-A (GB)
Title: Internal combustion engine valve gear
IPC: F02F7/00
Filed: 1966-06-27
Abstract: 1,093,861. Cam-shafts. GENERAL MOTORS CORPORATION. June 27, 1966 [July 28, 1965], No. 28608/66. Heading F2U. [Also in Division F1] The cam-shaft 16, Fig. 3, in an I.C. engine is mounted in pedestals 56 formed integrally with a valve rocker cover 30. Cam-shaft 16 is secured and sealed at each end by dust cover 70, washers 63, 66, 68 and belts 60. Cams 36 act on valves (48), Fig. 2 (not shown) via rockers (38) pivoted on lash adjusters (42). A chain timing belt (28), Fig. 1 (not shown) drives the cam-shaft 16 and an auxiliary units package (not described) (22) from the crank-shaft 14. Lubrication.-Pressure oil from the engine block passes via gallery 78, passage 76, groove 74 and passage 72 to passage 58 and thenco passes via metering jets 64 in the cams 16 to lubricate the valve gear by oil mist.
Patent GB-829619-A (GB)
Title: Improvements in or relating to the heating of coke ovens
IPC: C10B21/20
Filed: 1958-09-05
Abstract: 829,619. Coke-ovens. KOPPERS G.m.b.H., H. Sept. 5, 1958 [Sept. 5, 1957], No. 28634/58. Classes 51 (1) and 51 (2). In a regeneratively heated coke oven fired by rich gas, the heating walls 2 are divided into groups of vertical flues 4, 4a, and 5, 5a, with top connections 13, calibrated rich gas nozzles 15 and controllable air ports 6, 8 being provided at the base of each flue, and adjusted so that one flue has an excess of gas, its twin having an excess of air, thereby inducing a secondary combustion at the connections and thus evening the heating effect. Flues 4, 4a are connected to rich gas conduits 9 and flues 5, 5a to rich gas conduits 9a. During one heating period flues 4, 4a receive heated primary air from regenerator 3 through ports 6, flues 5, 5a discharging waste gases into regenerator 3a through ports 8. The size of air ports 6, 8 is controlled by movable bricks (not shown). The middle flues of a group, and adjacent outer flues of groups are interconnected by bottom re-circulating ducts 12, whereby incoming preheated air is mixed with waste gases before it contacts rich gas leaving nozzles 15. The invention may also be applied to under-jet ovens, compound ovens, and ovens with divided regenerators connected by " scissor " flues.
Patent GB-755591-A (GB)
Title: Adapter for phonograph spindles
IPC: G11B17/14
Filed: 1954-10-05
Abstract: 755,591. Automatic gramophones. INDUSTRIAKTIEBOLAGET LUXOR. Oct. 5, 1954 [Oct. 19, 1953], No. 28643/54. Class 40(2) In an adaptor for existing record-releasing centre posts, as in Specification 659,932, enabling records with large diameter centre holes to be accommodated, the releasing means of the existing centre post directly engages the records during at least part of the automatic cycle. The adaptor comprises three mains parts, parts 12 and 13 which remain stationary with the centre post 1, and a part 14 which rotates with the turntable 2. Between parts 13 and 14 is arranged a sliding plate 22 which is moved against the tension of a spring 27 by a member 8 of the existing centre post. In the record-supporting position of plate 22 it is held to the right, as shown in Figs. 1 and 2, with a stop member 28 pressing against the centre post. Members 31, pivotally mounted on part 13 also project outwardly and assist in the support of the stack of records. During a record releasing operation, the plate 22 is moved to the left by member 8 causing the displacement of all but the lowest record by a U-shaped member 26 mounted on plate 22. The opposite end of plate 22, and the members 31, thus become withdrawn to release the lowermost record of the stack on to the turntable. To permit records to be easily removed from the turntable over the adaptor, the member 26 is pivotally arranged on plate 22 on a shaft 24, so that the records being removed cause the member 26 to be retracted temporarily into the adaptor.
Patent GB-323792-A (GB)
Title: Improvements in or relating to the colouration of cellulose derivatives
IPC: C09B35/00
Filed: 1928-10-05
Abstract: 323,792. British Celanese, Ltd., and Ellis, G. H. Oct. 5, 1928. Azo dyes suitable for dyeing cellulose esters and ethers are made by coupling 1, 2, 3 or more molecular parts of the same or different coupling components with diazotized aminonitro compounds containing two or more aryl residues linked in any desired manner. Diazo compounds specified are 2-nitrobenzidine, 2 : 2'- or 3 : 3<1>-dinitrobenzidine, 5-nitro-o-tolidine, 5 : 5<1>-dinitro-o-tolidine, 6: 6<1>- dinitro-o-dianisidine, 4-nitro-4<1>-aminodiphenyl ; 3-nitro-4-amino- and 5-nitro-2-aminodiphenylether; 4 : 4<1>-diamino-3 : 3<1>-dinitrodiphenylsulphone; 2 :4-dinitro-3'- (or 4') amino, 4-chlor-2- nitro-4<1>-amino-, 2- (or 4) nitro-4'-amino-, 2-nitro- 4-amino or 2-nitro-4-amino-4<1>-methyldiphenylamine (the latter from 3-nitro-4-chloracetanilide and p-toluidine and hydrolysis) ; 5-nitro-2- amino-, 3-nitro-4-amino-, 2-nitro-2<1>-amino or 4 : 4<1>-diamino-3 : 3<1>-dinitrobenzophenone, 4 : 4<1>- diamino-2-nitro-, 4 : 4<1>-diamino-2 : 2<1>-dinitro- or 4 :4<1>-diamino-3 :3<1>-dinitrodiphenylmethane and tri-(2-nitro-4-aminophenyl)-methane; 2-amino-5- nitrobenzanilide, 4<1>-nitrobenzyl-2-amino-5-nitroaniline, 4-nitrobenzoyl-p-phenylenediamine and 4 : 4<1>-diamino-2 : 2<1>-dinitrodiphenylurea. Specified coupling components are xylidines, cresidines, anisidines, phenetidines, m-toluidine, mphenylenediamine, p-nitro-m-phenylenediamine, alkyl-, aryl- or aralkylanilines, phenols, cresols, resorcinol, aminophenols, or alkylaminophenols as dimethyl-m-aminophenol, alpha- or #-naphthylamines or alkyl derivatives thereof, naphthylamine ethers, #-oxyethyl-alpha-naphthylamine, alpha-chlor-#- oxypropyl-alpha-naphthylamine, aminonaphthoic acids, aminonaphthols or N-acidyl compounds of the above coupling components. The azo dyestuffs may contain any other desired additional substituents e.g. nitro, amino, alkylamino, acidylamino, alkyl, alkoxy, hydroxy, carboxy, halogen and mercapto groups. Compositions containing the insoluble azo dyes_ and dispersing agents and/or protective colloids are referred to. The following dyestuffs are specified : (1) 2 :4-dinitro- 4<1>- (or 3<1>) aminodiphenylamine # phenol, mtoluidine, dimethylaniline, m-phenylenediamine or resorcinol, (2) 3-nitro-4-amimodiphenylether # alpha-naphthylamine, (3) 2 : 2<1>-dinitrobenzidine # toluidine or cresidine (CH3 :NH2 :OCH3 =1 : 3 : 4). The azo dyestuffs obtainable from 4- nitro-4<1>-aminodiphenylsulphide and compositions containing these dyestuffs and Specifications 310,779 [Class 15 (ii), Dyeing, Processes &c. for], and 310,827 are disclaimed. Specifications 219,349, 222,001, 224,925, 237,943; 239,470, [Class 15 (ii), Dyeing, Processes &c. for], 242,393, 242,711, 269,960, 273,819, 273,820, 283,081, and 283,253 also are referred to.
Patent GB-348992-A (GB)
Title: Process for the production of stable bleaching powder
IPC: C08B30/00
Filed: 1930-09-25
Abstract: Bleaching powder is dehydrated for storage purposes by bringing it in suspension and in the finest stage of subdivision, into contact with a current of air at about 160-180 DEG  C., so that the duration of contact is not more than a few seconds.  The product is then quickly cooled.
Patent GB-204557-A (GB)
Title: A machine to give change with ordinary prepayment gas meters and the like
IPC: G07F5/24
Filed: 1922-10-21
Abstract: 204,557. Brading, H. G. Oct. 21, 1922. Change-giving apparatus.-Consists in a device for use with a prepayment gas meter for giving six pennies in exchange for a sixpence. Storage; delivery mechanism.-The pennies after operating in the usual way form a pile in a chamber B beneath which is a recessed drawer, Fig. 6, adapted to hold six pennies. The back wall of the recess H in the drawer is lower than the front wall by half the thickness of a new penny, to enable both new and worn coins to be taken. When the drawer is pulled out, a plate G moving therewith passes under and supports the pile of coins in the chamber B. The drawer has side openings to facilitate the removal of the pennies. Coin action, weight.-The sixpence when inserted slides down a shoot D and tilts a lever detent holding the drawer. Coin-discharging mechanism. - When the drawer is pulled out the sixpence drops into the box GG. Indicators.-The pile of pennies acts on a lever C and raises a rod C<2> to indicate when change can be taken.
Patent GB-224094-A (GB)
Title: A bodkin
IPC: D05B85/00
Filed: 1923-11-14
Abstract: 224,094. Percivall, E. Nov. 14, 1923. Bodkins.-A bodkin for use in inserting tape in starched goods &c. consists of a piece of wood, metal &c. of relatively large circular cross-section and tapering downward from the forward end to the rear end in which the eye is pierced.
Patent GB-722502-A (GB)
Title: Improvements in and relating to the electric welding of sheet-metal articles
IPC: B23K11/14
Filed: 1950-11-23
Abstract: 722,502. Making containers; welding by pressure; soldering. KREFT, H. Nov. 23, 1950 [June 29, 1950], No. 28720/50. Addition to 682,191. Classes 83 (2) and 83 (4). In the electric resistance welding of containers &c. seams wherein one or more pairs of electrodes extend the length of the seam and a single high current impulse is employed as claimed in the parent Specification a concentrated heat zone is created at the seam such that welding is effected while the temperature of the metal outside the welding zone remains below welding temperature. The resistance between the surfaces to be welded is made higher than that at the electrode contact points. If the metal is of high resistance the electrodes are silvered or nickelled or in the case of tinplate, the plating is removed only at the areas to be welded. The surfaces of the electrodes may be of tin, nickel or silver and the surfaces contacted by the electrodes may be silvered or tinned while the areas to be welded may have their resistance artificially increased. The edges of the sheets may be bent, see Fig. 5, or flanged to increase the resistance or oxide, semiconductor, lacquer or metal powder layers or metal or semi-metal in the form of thin foil or wire may be introduced between the welding areas. Coated sheet-metal, e.g. tin, silver or nickel plate may have resistance increased by roughening, perforating, knurling, scraping, &c. Oxide coated sheets may retain the oxide at the welding area while at the electrode contactpoints the oxide is removed or silvered or tinned. When welding, e.g. tinplate, with insertions for resistance increase, the insertions may fuse into the welded surfaces. Alternatively the insertions may not cover the whole overlapped area so that, e.g., tin coatings contact over part of the area and form soldered areas when welding of the middle of the area is effected. The insertions may have high resistance parts edged with solder, e.g. tin. to obtain a welded joint edged with solder. Fluxes in paste or gas form or as an integral part of the insert may be used. Small current densities are employed, obtained by using a cylindrical electrode 35, Fig. 7, or 42, Fig. 8, with coacting electrodes 38 and 41.
Patent GB-1009222-A (GB)
Title: High-vacuum fluid flow control valve
IPC: F16K41/10
Filed: 1963-07-19
Abstract: 1,009,222. Valves. VARIAN ASSOCIATES. July 19, 1963 [Aug. 6, 1962], No. 28759/63. Heading F2V. [Also in Division B4] In a high vacuum valve for use at high temperatures, e.g. 300‹ C., a seal is effected at seat 17 between inlet 12 and outlet 13 by a replaceable ductile metal, e.g. copper, washer 22 which is retained within the recessed end of a plunger 21 forming part of a closure assembly 14 bolted, and pinned by clamping bolt 25, to a sleeve 23 and displaceable therewith, in screwthreaded engagement with nut member 27, by insertion of a tool into square or hexagonal socket 31 and rotation thereof. A gas-tight seal between member 27 and the plunger 21 is provided by a metal bellows 29, welded thereto. The washer 22 is removed and replaced, via circular outlet 13 which is longer than inlet 12, upon displacement of plunger 21 and engagement of grooved washer knob 22 with a tool, restrained against displacement therewith, within inlet 13. Alternatively, inlet 12, seat 17, washer 22 and outlet 13 may be elliptical with inlet 12 and outlet 13 of the same size. The seat 17 may comprise faces 41 and 42 inclined at an angle of 5-20 degrees respectively to the face of and the normal to the washer 22. Alternatively the inclined seat face 41 may be provided with a groove 43 to obtain increased sealing force. Specification 1,009,221 is referred to.
Patent GB-310460-A (GB)
Title: Machine for moulding long and narrow articles by centrifugal action
IPC: B28B21/30
Filed: 1928-10-06
Abstract: 310,460. Ferrier, P. April 26, 1928, [Convention date]. Centrifugal machines.-A machine for long, narrow and tapered articles of concrete or metal comprises an inclinable frame b carrying associated pairs of rollers f, f<1> for supporting the mould, either directly or through a cradle n furnished with roll tracks q. One set of rollers is driven and the others are supported in ball- and-socket bearings e carried by pivoted plates c resiliently supported by springs d associated with shock-absorbers g so as to follow inequalities in the mould. When inclined, the moulds are sustained by a centre-stop. The cradle n is adapted to be secured about the mould by swing catches r controlled by hydraulic cylinders. Auxiliary presses k are disposed along the machine upon arms and are actuated by a member i to force together the halves of the cradle.
Patent GB-1001791-A (GB)
Title: Improvements in and relating to electric data transmission apparatus
Inventor: ANNIS NORMAN SCOTT
IPC: B21B37/00
Filed: 1960-08-19
Abstract: 1,001,791. Electric selective signalling systems. ENGLISH ELECTRIC. CO. Ltd. Aug. 18, 1961 [Aug. 19, 1960], No. 28801/60. Heading G4H. In a system for transferring the setting of a first uni-selector to a second uni-selector, the first uniselector (not shown on the Figure) applies a voltage corresponding to its setting to a terminal 41, Fig. 2, selected from a set of ten different reference voltages 23, the second uni-selector applies a voltage corresponding to its setting to a terminal 42 via one of its wipers 28, and a comparator arrangement, constituted by a current limiter 40 and a relay 38, 39, in series between terminals 41 and 42, so controls the stepping solenoid 31 of the second uni-selector that it is stepped repeatedly until its setting is the same as that of the first, that is until the two voltages at terminals 41 and 42 are equal. The driving circuit for the solenoid 31 of the second uniselector includes a transistor amplifier and conventional stepping contacts 32. Circuits are provided, 29, 46 (not described in detail) which prevent the first uni-selector changing its setting while transference is being effected and a third bank 30, on the second uni-selector controls an indicator. The system is said to be for use in a rolling mill where operators wish to transfer data to successive operators as a piece of metal passes through their section.
Patent GB-974443-A (GB)
Title: Improvements in or relating to oscillatory cutting knives
IPC: B23D25/00
Filed: 1962-07-26
Abstract: 974,443. Cutting apparatus. J. E. THOMPSON. Oct. 25, 1963 [July 26, 1962], No. 28813/62. Heading B4B. An oscillatory cutting knife assembly comprises a knife 1 oscillatable about an axis and co-operating with a die 3 so as to cut material, e.g. a strand, web, or rod, passing between them, the knife being mounted on a spring- loaded arm 5, of which one end co-operates with a pivotable pawl 9 mounted on a rod 8 and actuable by a pneumatic or hydraulic cylinder arrangement, so that the pawl moves the knife in one direction only to perform a cutting operation, while the knife is returned in the other direction under the influence of the spring loading. As described, the rotary knife 1 is of quarter cylindrical shape extended to form a yoke from which trunnions 2 project, and is mounted so that a strip of material may pass over the die and beneath the knife along a line 4. In operation, air is applied to the cylinder moving the piston and rod 8 to the right and compressing the springs 11. Material to be cut is fed along the path 4 past the die 3 and knife 1 until the leading edge of the material abuts a flag 16 of a control valve. The material moves the flag so that a sleeve 15 of the valve is turned to register a slot 17 with a slot 19 in a hollow spindle 18 in the valve, to release the air pressure, and the piston and rod move under the influence of the springs 11, so that the pawl 9 engages a roller 7 on the arm 5 to move the arm against its loading spring 6, and the knife 1 cuts the material. The pawl 9 rides under the roller and, when it has passed, the arm 5 moves under the action of the spring 6 to lift the cutting edge of the knife clear of the die 3. The piston 8 is then retracted by feeding air to the cylinder, and when the pawl 9 abuts the roller 7 it is pivotally displaced on the rod 8 so as to ride under the roller and not move the arm. The pawl 9 is then returned to its initial position by a spring 10. The piston continues its movement until the springs 11 are again compressed and the knife is then ready for a further cutting cycle. The apparatus may be modified by including a collar on the piston-rod, and a spring between the collar and the cylinder, instead of the springs 11, or a two-armed spider carrying spring-loaded rods, with air applied to the other side of the piston, and the knife arm 5 may be mounted above or below the knife. An hydraulic cylinder may be used for high speed cutting, and the piston and cylinder arrangement may be operated by a timing means related to the speed of travel of the material instead of by a flag-operated control-valve.
Patent GB-811147-A (GB)
Title: Improved surgical foot support
IPC: A61F13/04
Filed: 1955-10-11
Abstract: 811,147. Surgical foot support. TIPPER, K. Dec. 7, 1956 [Oct. 11, 1955], No. 28862/55. Class 81 (2). For use with legs encased in plaster bandages a platform 1 is secured below the foot, or embedded in the plaster, and carries a projection 3 having a cylindrical piece 4 which extends across the width of the foot below the heel and has a U-shaped frame 8 pivoted in it at each side by cylindrical attachments 11. The frame tends to be urged downwards by springs 13 and may be partially embedded in the rubber sole of a boot. The frame 8 may be detached by pressing its side limbs inwards and removing the fittings 11 through the slots 5.
Patent GB-762462-A (GB)
Title: Improvements in or relating to synthetic resinous moulding materials
Inventor: PHILLIPS LESLIE NATHAN
IPC: B32B27/00
Filed: 1952-11-15
Abstract: A heat-convertible synthetic resin mixture substantially stable at room temperature is made mixing a thermosetting monohydric phenol-aldehyde resin (a) with a polyhydric phenol - aldehyde resin (b) which is itself substantially stable at room temperature, the unreacted aldehyde content of (a) being insufficient for any activation of (b) to cause appreciable curing of the mixture at room temperature.  Resin (b) is used in amount e.g. of 30 to 70 per cent by weight of the total mixture. Preferably, resin (a) is made from phenol and formaldehyde in the molar ratio of 1 : 1 to 1 : 1.5 and resin (b) is made from resorcinol and formaldehyde in the molar ratio of 1 : 5 to 1 : 0.8.  Mixing of the resins may be effected in solution in a non-reactive volatile solvent.  Fibrous or like felt or woven material may be impregnated either with the resin mixture or first with a solution of resin (a) and then with a solution of resin (b), and moulded, e.g. into an aerofoil skin by the vacuum moulding technique (see Group V).  The examples illustrate the latter proceedure wherein asbestos fibre felts are impregnated first with an aqueous solution of resin (a) and then with an acetone or methylated spirit solution of resin (b).  Other solvents specified are chloroform, carbon tetrachloride, diethyl ether, methanol, ethanol, ethyl acetate, methyl ethyl ketone and methylene dichloride. Specifications 612,203, [Group V], and 658,269 are referred to in the Provisional Specification.
Patent GB-618976-A (GB)
Title: Improvements in or relating to photo-electric devices
IPC: H03G7/00
Filed: 1946-09-27
Abstract: 618,976. Noise reduction in sound-films. PHILIPS LAMPS, Ltd. Sept. 27, 1946, No. 28915. Convention date, April 6, 1943. Drawings to Specification. [Class 40 (ii)] [Also in Group XXXIX] In a sound-reproducing apparatus for optical sound-films, the unfavourable signal/cell-noise ratio at low levels is improved by the use of a contrast compression system in which the amplified signal-current is rectified and the resulting voltage used to oppose the D.C. potential of the light source, or that of the sound cell. The resulting contrast compression may be neutralized for correct reproduction of the acoustic signal by subsequent contrast expansion controlled by the voltage produced by the rectified signal-current.
Patent GB-374703-A (GB)
Title: Improvements to air actuated ventilators, chimney tops, and the like
IPC: F23L17/10
Filed: 1931-08-26
Abstract: 374,703. Chimney &c. tops. EDMOND, J. A., 7, Kelvinside Gardens, Glasgow. Aug. 26, 1931, No. 28953. [Class 25.] A chimney top or ventilator comprises a tubular outlet A housing a fan C attached to a spindle B supported by bridge pieces x, y and carrying at its upper end a rotor D adapted to be driven by external air currents, the major portion of the effective area of the rotor vanes being at a lower level than the top edge of the outlet A.
Patent GB-603913-A (GB)
Title: Improvements in means for shaping the ends of ceramic and like pipes
IPC: B28B21/92
Filed: 1946-09-30
Abstract: 603,913. Turning ceramic &c. pipe ends. POWER, C. C. Sept. 30, 1946, No. 29099. [Class 124] The outer periphery 28 of the end of a ceramic or like pipe 3 is shaped by means of a manuallyoperated tool 26, the holder 12 of which is secured to a nut 6 threaded on a bar 2 clamped in, and projecting axially from, the end of the pipe. The nut 6 is rotated by a handle 11 of adjustable length. The clamp may comprise a plug split into longitudinal segments 16 and bored at both ends to receive a conical plug 23 and a conical nut 24 which is adjusted along a threaded extension 19 of the bar 2 by means of a handle 27 to expand the segments 16. The segments may be held in place by elastic bands in grooves 25. According to the Provisional Specification, the arm 8 carrying the holder 12 may be of adjustable length, the holder 12 may be pivotally mounted, and the tool 26 may be reversed for a return cut.
Patent GB-821608-A (GB)
Title: Improvements in explosion suppressants
Inventor: GLENDINNING WILLIAM GERALD
IPC: C10L1/00
Filed: 1954-10-09
Abstract: 821,608. Explosion suppressants. GRAVINER MANUFACTURING CO. Ltd., and WILKINSON SWORD Ltd. Dec. 22, 1955 [Oct. 9, 1954], No. 29146/54. Drawings to Specification. Class 47 An explosion suppressant consists of a mixture of a bromine derivative of hydrocarbon with a petroleum ether fraction. Preferably the boiling point of the petroleum ether fraction at normal atmospheric pressure is below 40‹C. The bromine derivative may constitute 20% by volume of the mixture and preferably has a boiling point at normal atmospheric pressure of between 20 and 80‹C. The bromine derivative may comprise chloro-bromomethane. di-bromo di-fluoro methane, methyl bromide or di-bromo tetra-fluoro ethane. The petroleum ether fraction may comprise n-pentane or iso-pentane. Specification 799,526 is-referred to.