baber/WOPTO huggingface dataset:
Patent GB-931607-A (GB)
Title: Improvements in and relating to gear shaving machines
IPC: B23F19/00
Filed: 1960-10-20
Abstract: 931,607. Gear-finishing. H. HURTH, and F. HURTH. Oct. 20, 1960 [Nov. 19, 1959], No. 35944/60. Class 83 (3). A gear-shaving machine comprises means for adjusting the direction of relative feed of the gear and the tool, and independent means for crowning the gear teeth. For purposes of crowning, the work-table 15 is pivoted on a plate 13 and a roller 23 thereon is held by a spring 21 against a cam 24 adjustable on the machine base 10. To adjust the feed direction, the plate 13 is angularly adjustable on a slide 12 traversed by a screw 31 on an angularlyadjustable table 11.
Patent GB-1481657-A (GB)
Title: End-of-play detecting mechanisms and to cassette-type magnetic tape players incorporating such a mechanism
IPC: G11B15/46
Filed: 1975-09-01
Abstract: 1481657 Feeding record tapes MATSUSHITA ELECTRIC INDUSTRIES CO Ltd 1 Sept 1975 [6 Sept 1974(2) 10 Sept 1974] 35949/75 Heading G5R An end-of-play detecting mechanism for a cassette or cartridge tape recorder comprises a take-up support 50, Fig. 10, for a take-up reel, slipping clutch means 60 for tape winding detecting slipping clutch means 66, a biasing lever 63, a take-up pulley 56b with an eccentric cam body 61, Fig. 11, which has an engagement recess 61a, and a control member 62 having a projection 62d which is held out of engagement of the recess 61a by the lever 63 as long as the detecting clutch 66 exerts a biasing force on the lever 63, but which as soon as the take-up support stops rotating, engages the projection 62d. This causes an operating member 31 pivotally carried by a movable deck 13, Fig. 1, be rotated anticlockwise and thereby disengaged from a lock pin 30. The deck 13 can then return to its inoperative position causing the cassette to be ejected. The tape recorder has a stationary chassis 10, Fig. 1, supporting the movable deck, 13 on balls and oblique slots arrangement 17a, 18a; 22a, 22b, Fig. 3). A slidable plate 43, carries the head H for engagement with the tape, and the pinch roller 40. In operation, the cassette T is inserted and pushes rods 34a, 34b which cause the deck 13 to move up towards the chassis 10, the supports 50, 35 entering the reels of the cassette and the head 4 and pinch roller 40 engaging the tape whilst the slidable plate 43 is in its unoperated position. On pushing the projection 43d the plate 43 is moved to its operated position with a push-pull hysteretic locking arm 46 being locked by a pin 49a mounted on the deck 13 and the head H and pinch roller 40 withdrawn for rapid advance of the tape. On pushing an ejecting lever 25, lock pin 30 is disengaged from the member 31, thus releasing the deck 13 to return to its inoperative position and eject the cassette.
Patent GB-1132814-A (GB)
Title: Lifting spreader with corner guides
IPC: B66C1/10
Filed: 1967-08-04
Abstract: 1,132,814. Spreaders for handling cargo containers. PACIFIC COAST ENG. CO. 4 Aug., 1967 [29 Aug., 1966], No 35966/67. Heading B8H. A lifting spreader for cargo containers, Fig. 1, has funnel-shaped corner guides 11 which can be individually retracted to a position above the spreader and within its profile in plan view. The guides comprise plates 17, 29, 25 and are supported on arms 31, Fig. 4. The arms are swung upwards by rams 45 and toothed segments 43 which engage pinions 39 fixed on shafts 37 attached to the arms 31. Guide rollers 53 are provided at the corners of the spreader.
Patent GB-1118562-A (GB)
Title: Improvements relating to locks for suit-cases and like articles of luggage
Inventor: CHANCE WILLIAM ERNEST
IPC: E05B65/52
Filed: 1964-09-03
Abstract: 1,118,562. Hasp fastenings; locks. C. W. CHENEY & SON Ltd. 1 Dec., 1965 [3 Sept., 1964], No. 36194/64. Heading E2A. A lock comprises two separable parts consisting of a keeper 15 and hasp 16, the latter being mounted on an attachment bracket 10 and arranged for both pivotal and sliding movement upon the bracket, the hasp 16 being spring-urged to a position in which it may engage the keeper 15 for snap engagement therewith to provide a first degree of security, the hasp being slidable when so engaged to provide a further degree of security, and having lock means for providing a third degree of security. As shown, the hasp is pivotally and slidably mounted on a rod 12 and is urged into engagement with the keeper 15 by a torsion spring 17. A locking disc 22 rotatable by a key and located beween a liner and the inner side of the hasp. includes a nose 24 for engagement in a slot 25 of the keeper 15, such that when the disc is engaged and rotated through 180 degrees it engages a nose of the keeper to prevent pivotal movement of the hasp. In use the hasp is snap-engaged over the keeper and retained by a spring 17, whereafter the hasp is given a sliding movement to engage a tab 21 with a recess 26 in the keeper and to snap-engage a ridge 27, with a ridge 28 on the keeper, to provide key-less locking whereafter the hasp may be locked by key operation of the disc 22.
Patent GB-1402885-A (GB)
Title: Doppler radio gui-ance systems
IPC: G01S1/40
Filed: 1972-08-03
Abstract: 1402885 Radio navigation STANDARD TELEPHONES & CABLES Ltd 24 July 1973 [3 Aug 1972] 36231/72 Heading H4D In a receiver for a Doppler-effect beacon which radiates sequentially from an aerial array the received bearing input signal frequency is changed to a predetermined fixed frequency (whatever the bearing) such that for all bearings the ensuing spectrum contains its two most powerful lines one on each side of the fixed frequency. In the embodiment a voltagecontrolled local oscillator VCO is coarsely controlled by a wide-band discriminator WBD and then by a differential detector DD fed from narrow-band filters NBF1, NBF2. A counter CO yields a measure of bearing (azimuth or elevation).
Patent GB-1476166-A (GB)
Title: Agc amplifier circuit arrangement
IPC: H04L25/04
Filed: 1974-08-19
Abstract: 1476166 Muting; automatic gain control OKI ELECTRIC INDUSTRY CO Ltd and NIPPON TELEGRAPH & TELEPHONE PUBLIC CORP 19 Aug 1974 [7 Sept 1973] 36369/74 Headings H3T and H4R In an amplifier or P.C.M. regenerative repeater having automatic gain control using an automatically variable attenuator, the output is switched off when the gain control voltage passes e.g. falls below, a predetermined level. Amplifier or repeater 2 feeds output terminal 10 via buffer stage 8; it also feeds a rectifying circuit comprising diode 3a, capacitors 3b, 3c and reresistor 3d. The smoothed output is amplified by a D.C. amplifier comprising emitter coupled pair 4 and applied via emitter-follower 14 to vary the impedance of diodes 15, 16 which form part of a variable impedance network. The output from amplifier 4 is also fed via diodes 11, 12 and emitter-follower 13 to one transistor of a comparator, formed by the long-tailed pair 7. When the voltage on the AGC line falls below a predetermined value, transistor 9 becomes conductive and short-circuits the output from buffer stage 8.
Patent GB-1015304-A (GB)
Title: Post-chlorinated vinyl chloride polymer compositions having improved processability
IPC: C08L27/24
Filed: 1963-09-16
Abstract: Compositions comprise an intimate mixture of 100 parts by weight of post-chlorinated polyvinyl chloride and either (A) 1 to 15 parts by weight of a resinous copolymer of styrene and acrylonitrile, said copolymer having a dilute solution viscosity of 0.2 to 0.7 and an acrylonitrile content of 20 to 50% by weight; (B) 1 to 15 parts by weight of a resinous copolymer of styrene and acrylonitrile, said copolymer having a dilute solution viscosity of 0.3 to 0.7 and an acrylonitrile content of 20 to 35% by weight, and 3 to 15 parts by weight of a rubbery copolymer of butadiene and acrylonitrile, said copolymer having an acrylonitrile content of 20 to 30% by weight; or (C) 3 to 50 parts by weight of a graft copolymer produced by grafting a styrene-acrylonitrile mixture on a polybutadiene rubber and comprising (1) 30 to 75% of polybutadiene rubber; (2) 7 to 35% of acrylonitrile and 17 to 50% of styrene, said percentages based on the total weight of graft copolymer.  The compositions may also comprise pigments, fillers, lubricants and stabilizers, e.g. barium, cadmium, zinc, tin and lead carboxylates and alkyl tin derivatives such as dialkyl tin mercaptides; and may be used in the manufacture of piping, ducts, utensils, tanks, electrical components and automotive parts.  Many exemplary compositions are specified.
Patent GB-976924-A (GB)
Title: Speed changing devices
IPC: F16H1/20
Filed: 1963-09-16
Abstract: 976,924. Toothed gearing. HOLO-FLITE INTERNATIONAL Inc. Sept. 17, 1963 [Oct. 29, 1962], No. 36546/63. Heading F2Q. In a compact shaft-hung reduction gear an output sleeve 10 supported on the shaft of a belt conveyer or other machine is integral with a flanged disc 13 to which is bolted an internally toothed ring gear 17 driven by a pinion 27, the pinion 27 being supported in bearings 30, 36 carried respectively by an inwardly shaped part 19A of a cover 19 bolted to a housing flange 18, and by a cap 37 bolted to the cover 19. The housing 18-19 is located on the sleeve 10 by bearings 21, 22 and may be prevented from rotating by a torque arm or by direct connection with the driven machine. The disc 13 may be replaced by spokes. An input may be applied externally to an extension of the pinion shaft 34 but, as shown, this shaft is acted on by a roller detent or back stop 41 and the pinion 27 is integral with a gear 33 driven by a pinion (not shown) formed as toothing on a parallel input shaft 45. The shaft 45 is supported by bearings in the cap 37 and in an extension of the part 19A and may be driven by a prime mover either directly or through a belt or chain drive.
Patent GB-1367183-A (GB)
Title: Bright drying emulsion and process for its preparation
IPC: C09G1/10
Filed: 1972-08-04
Abstract: 1367183 Wax emulsions FARBWERKE HOECHST AG 4 Aug 1972 [7 Aug 1971] 36563/72 Heading B1V [Also in Division C3] Aqueous bright drying emulsions comprise (1) a wax emulsion, optionally together with a polymer dispersion, to which has been added (2) an aqueous non-ionic emulsifier-containing dispersion of a salt of a complex-forming bivalent or trivalent metal with an alkane monocarboxylic acid having 6 to 12 carbon atoms, the metal salt dispersion having a solids content of 10 to 60 weight per cent and a weight proportion of metal salt to non-ionic emulsifier of from 2:1 to 1:2. The wax may be carnauba, ouricury, candelilla, oxidised montan, ozocerite, oxidised or unoxidised paraffin or polyethylene wax. The salt may be a zinc, calcium, magnesium, cadmium or aluminium salt of heptanoic, octanoic, 2-ethylhexanoic, isononanoic or lauric acid. The non-ionic emulsifier may be a condensate of ethylene oxide with an alkylphenol, C 12-18  fatty alcohol or C 12-18  fatty acid. The compositions may also contain colophonymaleate, styrene-maleic anhydride and polyester resins solubilised with ammonia or amines; plasticisers, e.g. glycol ethers and phosphate esters; wetting and levelling agents e.g. fluorinated carboxylic acids; solvents; surfactants; dyes and preservatives. Examples describe the preparation of bright drying emulsions by mixing zinc octoate dispersed in water with the aid of ethoxylated tributyl phenol with (1) polyethylene wax emulsified with ethoxylated nonylphenol and 2-amino-2-methylpropanol-1, ammoniacal colophony-maleate or styrene-maleic resin, and a fluorinated wetting agent; (2) styrene-acrylate copolymer dispersion, methyl diglycol, dibutoxyethyl phosphate, fluorinated wetting agent and ammoniacal colophony-maleate resin; (3) montan, polyethylene and microcrystalline wax emulsions, ethoxylated nonylphenol, potassium hydroxide, ammoniacal colophony-maleate resin, styrene-acrylate copolymer dispersion, methyl diglycol, dibutoxyethyl phosphate, ethylene glycol and fluorinated wetting agent; and (4) polyethylene dispersion, ammoniacal colophony-maleate, styrene-acrylate copolymer dispersion, methyl diglycol, dibutoxyethyl phosphate, ethylene glycol and a fluorinated wetting agent.
Patent GB-1281438-A (GB)
Title: Power brake mechanism
IPC: B60T13/577
Filed: 1970-07-28
Abstract: 1281438 Fluid pressure brakes MIDLAND ROSS CORP 28 July 1970 [4 Aug 1969 (2)] 36589/70 Heading F2F A power brake mechanism actuating a master cylinder comprises a pressure-responsive movable wall 28, a valve 32 controlling the pressure differential on opposite sides of the wall and actuated manually, and reaction mechanism 176 resisting movement of the actuating means in a direct and uniform ratio to the force developed by the wall, the said reaction mechanism comprising freely floating identical levers 178, 180 which pivot on shoulders 186, 188 on a control hub 76, the spaced inner ends of the levers engaging the adjacent end of a valve-controlling plunger 150 and a resilient plug 194 of rubber or other suitable material. In the event of vacuum failure the brakes can be operated manually, the operative plunger 150 being moved by the pedal against the levers 178, 180 which bear against a bridge 200 bearing in turn on the output-rod (30) to actuate the master cylinder.
Patent GB-1224091-A (GB)
Title: Preparation of benzyl alcohol derivatives
Inventor: SAARI WALFRED SPENCER
IPC: C07D303/22
Filed: 1969-07-21
Abstract: 1,224,091. Benzyl alcohol derivatives preparation. MERCK & CO. Inc. 21 July, 1969 [25 July, 1968], No. 36640/69. Heading C2C. Erythro-compounds of the general formula (R<SP>1</SP>=m- or p-halobenzyl) and their salts are prepared by reacting a trans-compound of the formula with ammonia or a derivative thereof (such as phthalimide, p-toluenesulphonamide or an alkali metal cyanamide) and, in the latter case, removing any nitrogen or nitrogen and oxygen substituents remaining after the reaction, optionally followed by salt formation and/or resolution. The alkali metal cyanamides afford cis-oxazoline intermediates of the formula The starting materials are prepared as follows:
Patent GB-1106018-A (GB)
Title: Alloys for vibration damping
Inventor: CIBULA ALEC
IPC: C22C28/00
Filed: 1965-08-27
Abstract: An alloy for use in gears or bearing surfaces consists of .Mn.60.-85% .Cu.10.5.-39% .Pb.1.-4.5% The articles may be made of the alloy or only coated therewith
Patent GB-1473851-A (GB)
Title: Preparation of lattices
IPC: C08F220/04
Filed: 1973-08-03
Abstract: 1473851 Carboxylated rubber latex INTERNATIONAL SYNTHETIC RUBBER CO Ltd 5 Aug 1974 [3 Aug 1973] 36884/73 Heading C3P A two-stage continuous process for the production of carboxylated rubber latex comprises continuously supplying to a first reactor at 70-85‹ C. (a) a mixture of monomers comprising a conjugated diene, a non-carboxylic monomer and an unsaturated carboxylic acid, (b) a source of peroxy disulphate ions, (c) an alhali metal or ammonium alkyl aryl sulphonate emulsifier, (d) an alkali metal or ammonium electrolyte or the reaction product of such an electrolyte with an unsaturated carboxylic acid and (e) water and polymerizing the monomers therein for an average residence time of 3-5 hours, continuously transferring reaction mixture to at least one subsequent reactor at 85-100‹ C. The total residence time is 6-10 hours. Preferably (b), (c) and (d) are such that sodium, potassium and ammonium ions are all present and (c) may be used in conjunction with a toluene sulphonate. Examples describe the production of butadiene/styrene or acrylonitrile/ itaconic, acrylic, methacrylic, fumaric, maleic, crotonic or 3-butene-1,2,3-tricarboxylic acid copolymers.
Patent GB-967966-A (GB)
Title: Slow wave apparatus
IPC: H01J25/44
Filed: 1961-10-16
Abstract: 967,966. Travelling-wave tubes; magnetrons. S-F-D LABORATORIES Inc. Oct. 16, 1961 [Oct. 14, 1960], No. 37031/61. Heading H1D. A slow-wave structure, e.g. for an " M "-type travelling wave tube, comprises a plurality of regularly spaced parallel conductors 1, Fig. 1, a pair of opposed boundary members 2 joining together the extremities of the conductors, a first plurality of transverse conductors 3 spaced from one of the boundary members and closer to this boundary member than to the opposite boundary member and connecting alternate parallel conductors to the parallel conductor on one side thereof, a second plurality of transverse conductors 3 spaced from the opposite boundary member and closer to this boundary member than to the first-named boundary member and connecting the said alternate parallel conductors to the parallel conductor on the other side, the outer portions of the parallel conductors extending from each transverse conductor to the boundary member closer thereto providing a high impedance to the boundary member, and a ground plane member 13, Fig. 2, disposed adjacent the active portions of the parallel conductors which extend between the transverse conductors and spaced from the active portions by a distance such that the bandwidth of the structure is substantially increased. The structure may be a unitary structure, Fig. 2, or formed out of a network of hollow pipes, Fig. 5, through which a coolant fluid may flow. Input and output terminals 11, 12, Fig. 2, are provided at each end, a low impedance being provided by end slots 6 each extending a quarter wavelength from the end conductors 7, 8. In the travelling-wave magnetron shown in Fig. 4, a cathode 22 is surrounded by the slow-wave structure 5<SP>1</SP> which is itself surrounded by an anode block 20. In operation, an R.F. wave injected on to the delay line is sufficient to initiate emission from the cold cathode 22, and the emission remains continuous due to secondary emission resulting from back-bombardment of electrons which have gained energy from the wave.
Patent GB-978588-A (GB)
Title: Means for, and a method of, cultivating plants
IPC: A01G9/10
Filed: 1962-10-02
Abstract: 978,588. Receptacles for growing plants. B. W. EAVIS. Sept. 26, 1963 [Oct. 2, 1962], No. 37334/62. Heading A1E. A device for use in growing plants comprises a tube 1 containing an absorbent rooting medium 2 into which seeds, bulbs or plants are inserted through apertures 3 in the tube wall, the plants growing through the apertures and feeding on nutrient provided in or supplied to the interior of the tube. The tubes are placed on a surface which is periodically flooded with water which is absorbed through further apertures 4. A number of tubes may be arranged in spaced relationship and connected together to form a unit, and each tube may be sealed transversely at selected intervals to form a pocket of rooting medium in which a single plant is grown. The tube is formed of plastics material and may be provided with longitudinal perforations to facilitate separating the tube from the rooting medium. The tubes may be fed into a machine designed to separate individual plants from the tube and plant them in the ground. The Provisional Specification describes a planting machine in which tubes are suspended from an overhead conveyer, the individual plant units are cut off and picked up by arms or tines spaced around a hub, means for retracting and releasing the arm from the plant unit after it has been placed on the ground and returning the arm to its initial position being provided. The tubes may be housed beneath a tunnel comprising wire hoops over which is stretched a transparent or translucent plastics material.
Patent GB-1242241-A (GB)
Title: Method of and apparatus for packaging groups of articles
Inventor: BILLINGSLEY JOHN GEORGE SELBY
IPC: B65B9/06
Filed: 1968-08-05
Abstract: 1,242,241. Cutting apparatus. E. I. DU PONT DE NEMOURS & CO. Inc. 5 Aug., 1968, No. 37344/68. Heading B4B. [Also in Division B8] The figures show one of four cutting devices, which are arranged in first and second pairs for cutting the horizontal and vertical surfaces, respectively, of a horizontal, rectangularlysectioned tube of plastics packaging material, enclosing spaced groups of articles (see Division B8). The device comprises an assembly mounted on a driven shaft 918 for rotation therewith and including two knives each composed of two elongated, toothed blades 952, 954 or 953, 955. Identical operating mechanisms are provided for the four blades and so only that relating to blade 952 will be described. As the assembly rotates out of the operative cutting position for blades 952, 954, a three-armed lever 944 is rotated clockwise about a pivot 956 by a roller 951 following the shaped periphery of a fixed cam disc 914. This moves blade 952 radially inwardly against the action of a spring 958 until arm 962 of the threearmed lever is engaged and held by a latch 960. When blades 952, 954 subsequently reach their operative cutting position, rollers 968 following a cam ring 969 cause a latch release element 966 to pivot clockwise about pin 967 and thus release the latch 960, whereupon blade 952 is urged outwardly into its cutting stroke by the spring 958. Blade 954 operates simultaneously.
Patent GB-373741-A (GB)
Abstract: 373,741. Cleaning machinery pneumatically. WHITE, A. E., 5, Quality Court, Chancery Lane, London.-(Atlas Manufacturing Co. ; Summerdale Avenue, Philadelphia, U.S.A.) April 25, 1931, No. 12288. [Class 8 (ii).] A band saw for cutting meat is provided with air jets and scrapers for cleaning the saw. The air jets 27, which impinge obliquely on the saw, are contained in a casing 42 which carries a bag to collect the loosened material.
Patent GB-1133400-A (GB)
Title: New disazo pigments and process for their manufacture
IPC: C09B43/38
Filed: 1967-08-15
Abstract: 1,133,400. Pigments. CIBA Ltd. 15 Aug., 1967 [15 Aug., 1966; 28 June, 1967], No. 37419/67. Heading C4P. Disazo pigments of general formula in which R 1  is a benzene residue, R 2  is an arylene residue, X is an alkyl or carboxylic acid ester group, Y is a carboxylic acid ester group, and Z is hydrogen or a halogen atom or an alkoxy group, are prepared by treating an acid halide of formula with an arylene diamine in a molar ratio of 2 : 1. In particular, pigments of formula in which R is alkyl, cycloalkyl, aralkyl or aryl group, X 1  is methyl, carbalkoxy, carbophenoxy or -carbophenalkoxy, R 2  and Z being as above are preferred. The pigments give red-brown shades in polyvinyl chloride film.
Patent GB-619709-A (GB)
Title: Locking device for threaded machine elements
IPC: F16B39/32
Filed: 1946-12-19
Abstract: 619,709. Locking nuts. RYDBERG, F. Dec. 19, 1946, No. 37436. [Class 89 (i)] Nuts are locked by a helical spring of stainless metal received in a corresponding thread 2 of larger diameter than but in lead with the main thread. The end 4 of the spring resiliently engages a radial groove 5. Sufficient clearance is provided at 6 to permit easy insertion of the spring and to provide for expansion on tightening the nut.
Patent GB-996404-A (GB)
Title: Improvements in or relating to vehicle tires
IPC: B60C5/00
Filed: 1961-10-19
Abstract: 996,404. Wheel tyres. PNEUMATIQUES CAOUTCHOUC MANUFACTORE ET PLASTIQUES KLEBER-COLOMBES. Oct. 19, 1961 [Oct. 19, 1960], No. 37517/61. Heading B7C. A substantially puncture- and bullet-proof tyre comprises an open-beaded cord-reinforced casing 1 enclosing an annular filler 2 of natural or synthetic rubber of hardness less than 25 Shore A, the filler being initially formed to inverted U-section which provides an inner peripheral recess and is of larger corss-sectional dimension 6, Fig. 3, than the cavity of the casing 1, so that when fitted within the casing it is deformed, say to the condition 7, Fig. 3, and serves to tension the casing from bead to bead. The tyre is mounted on a circumferentially split rim 4 incorporating a bead spacer 5 and the chamber defined by the filler recess and the rim may remain at atmospheric pressure or may house in inflatable tube as at 23, Fig. 5. The volume of the filler 2 may be 40-80% that of the casing cavity. The casing may be of the low profile type of greater axial width than radial height in cross-section, and the filler recess may be radially within the rim flange edge for greater protection of any inflatable tube therein. Fig. 5 shows a filler 22 which when fitted has its edges butted and sealed by a cord-reinforced band to define a closed annular chamber housing a tube 23.