baber/WOPTO huggingface dataset:
Patent GB-1022905-A (GB)
Title: Fixing ceiling boards and the like
Inventor: FERRIS STANLEY JAMES
IPC: E04B9/22
Filed: 1964-01-28
Abstract: 1,022,905. Plasterboard ceilings. RAPID FLOOR CO. Ltd. Jan. 14, 1965 [Jan. 28, 1964], No. 3592/64. Heading E1V. Plasterboard 2 is fixed to a concrete soffit 6 by clips 1 engaging the board, which clips are secured by adhesive to the soffit. The clips may be of channel form engaged over the edges of the board, or may be formed with barbs for penetrating the board from its rear face prior to clinching over the barbs on the front face, or may be fixed by staples.
Patent GB-497983-A (GB)
Title: Improvements in and relating to soft packing materials
IPC: F16J15/22
Filed: 1938-02-04
Abstract: A stuffing-box or other packing device is packed with an artificial fibrous material containing a lubricating substance, which is incorporated in the material from which the fibres are made, and is distributed uniformly over the cross section of the fibres.  The lubricating substances, e.g. graphite, fat and oil, is present in amount not less than 10 per cent, and preferably in such amount that the cellulose or cellulose compound which constitutes the artificial fibre is present in just sufficient amount to form a thread which has sufficient strength to be worked up.  The fibres may be made by the viscose, cuprammonium nitrate and acetate processes.
Patent GB-607481-A (GB)
Title: Improvements in optical gauging
IPC: G01B11/24
Filed: 1946-02-05
Abstract: 607,481. Gauging by optical projection. HILGER, Ltd., A., and DOWELL, J. H. Feb. 5, 1946, No. 3662. [Class 106 (ii)] An optical gauge comprises means, e.g., a plate of iceland spar or a Wollaston prism, adapted to project a double image of one end of a dimension, and an image, lying a predetermined position, e.g. midway, within the double image, of the other end of the dimension, when the dimension is according to a standard, so that with the separation of the double image being made to correspond with the required tolerance, it will readily be determined whether the dimension of an object under test is satisfactory according to the standard by noting the position of the single image. As shown, rectangular specimens X are loaded. in two containers 1, 2 adapted to be fed into gauging position Y, one at a time, alternately from each container by plates 6, 7 on a carriage 3 adapted to be reciprocated by a connecting- rod 5 and crank 4, the carriage being fitted with a glass plate 36. Four projection lenses, one for each side and end of the specimen, are mounted below the carriage, and below one of each selected pair of lenses is mounted a Wollaston prism. The Wollaston prism 12 shown is mounted below a side lens 10 ; a further prism is mounted below the front end lens. These prisms divide the beam of light passing the two corresponding edges of the specimen to form two images of each edge, and with a standard specimen, the single images of the other (opposed) edges of the specimen fall midway between the double images of the corresponding opposed edges. Glass blocks 18 adjust the length of optical path through the lenses not having prisms beneath them. Various methods of adjusting the distance between the double images to give the necessary degree of tolerance are described. Coloured filters may be used. Screw threads and surfaces of revolution may be gauged by the apparatus, and in some cases one of the projected images can be reversed so that the opposed contours can be registered. Exact location of the specimen is unnecessary unless a template is to be used. The Wollaston prisms may be arranged in front of the projection lenses. Specification 142,517, [Class 106 (ii)], is referred to.
Patent GB-705387-A (GB)
Title: Improvements relating to radial-flow turbine or centrifugal compressors
Inventor: GREY JOHN CONSTANTINE
IPC: F01D5/04
Filed: 1951-02-15
Abstract: 705,387. Making turbines. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. Feb. 7, 1952 [Feb. 15, 1951], No. 3690/51. Class 83 (2). [Also in Group XXVI] A radial-flow turbine or centrifugal compressor rotor comprises hollow blades 3 which are constructed from two similar parts welded together along the edges 8, 9 and formed with an opening 10 which is narrower than the largest crosssectional, width: of the blade. Each blade is welded to a shroud ring 4 which is bolted to rings 12, 13 and 14; the rings 12, 13 being bolted to the rotor disc 2 and the ring 14 being bolted to the ring 13. The opening 10 may be disposed. in the inlet side 9 of the blade or dispensed with. In a modification the rotor comprises two such bladed discs which are disposed back to back and are spigoted and bolted together. The members 2, 13 and 14 are made of ferritic steel and the members 3 and 4 aremade of austenitic steel.
Patent GB-1426641-A (GB)
Title: Colour-developer compositions for recording sheets
IPC: B41M5/155
Filed: 1973-01-24
Abstract: 1426641 Colour developer composition FUJI PHOTO FILM CO Ltd 24 Jan 1973 [24 Jan 1972] 3697/73 Heading C4A [Also in Divisions D2 and G2] A colour developer composition for use in recording sheets and which is capable of reacting with a colour former to form a colour image comprises (1) a salt of an aromatic carboxylic acid with a metal selected from Groups Ib, IIa, IIb, IIIa, IVa, VIb, VIIb and VIII of the Periodic Table (as shown in the Handbook of Chemistry and Industry) and (2) a salt of a metal (other than an alkali metal) with sulphuric acid, nitric, hydrocyanic, phosphoric or hydrohalic acid or an aliphatic carboxylic acid. In salt (1) the metal is suitably Cu, Ag, Mg, Ca, Zn, Cd, Hg, Al, Sn, Pb, Cr, Mo, Mn, Co or Ni and the aromatic acid preferably contains a hydroxyl group, halogen or an alkoxy carbonyl or alkyl carbonyl or other electron-attracting groups. The salts (2) are preferably of Cu, Al, Mn, Ni, Ag, Co or Fe and the aliphatic acid may be acetic, formic, citric or oxalic acid. The composition may comprise 0À5-10 parts of salt (2) per 100 parts of salt (1), and also an acidic resin, e.g. phenolformaldehyde, an inorganic pigment such as zinc oxide, hydroxide or carbonate, TiO 2  or a .clay or earth, and a binder which may be a natural or synthetic polymer and an aqueous or organic solvent. A recording sheet may be coated on one face with the developer composition and the resulting sheet used for pressure sensitive recording in conjunction with another sheet bearing a colour-former in microcapsule form a middle recording sheet may bear a layer of the developer on one face and microcapsules of former on the reverse face. A single recording sheet may be prepared with the developer and microcapsules of former applied to the same one face. The preferred formers are crystal violet lactone and benzoyl leuco methylene blue. Reference is also made to thermosensitive recording wherein the colour former and a thermofusible substance, e.g. acetanilide are coated on a sheet support. Specification 1,376,945 is referred to. Reference has been directed by the Comptroller to Specification 1,348,961.
Patent GB-756487-A (GB)
Title: Radar simulation
Inventor: CUTLER ALBERT ERNEST
IPC: G09B9/54
Filed: 1954-02-08
Abstract: 756,487. Radar trainers. COMMUNICATIONS PATENTS, Ltd. Feb. 3, 1955 [Feb. 8, 1954], No. 3708/54. Class 40 (7). In a radar trainer in which " synthetic " echoes are produced on a cathode-ray tube P.P.I. display, electrical noise signals simulating " sea clutter " are also applied to the cathoderay tube and means are provided for varying the effect of said signals in accordance with variations in the assumed bearing of the aerial and with the P.P.I, range sweep. As shown the output from a noise source 1, e.g. a gas-filled diode, is applied through a filter 2 having a fre. quency characteristic as shown and variablegain amplifiers 3 and 6 to intensity-modulate the C.R.T. 5 and a sweep voltage from timebase generator 4 is applied to the rotatable deflector coils 13, 14 and to control the gain of amplifier 3 so that the amplitude of the displayed clutter signal decreases progressively during each range sweep. The gain of amplifier 6 is controlled by potentiometer 7 which determines the average amplitude of the clutter signal and by circular potentiometer 10 whose wiper 12 is rotated synchronously with deflector coils 13, 14 so that the instantaneous amplitude of the clutter signal varies in accordance with the assumed bearing of the aerial. The assumed bearing in which the clutter effect is a maximum, i.e. the direction from which the wind is blowing, is adjusted by varying the diametrically opposed tappings 9 and 11 on potentiometer 10 and the amplitude of the azimuth variation effect is controlled by potentiometer 8.
Patent GB-415029-A (GB)
Title: Improvements in or relating to clutches
IPC: F16D43/12
Filed: 1933-02-07
Abstract: 415,029. Clutches. STEVENS, A. H., 5, Quality Court, Chancery Lane, London.-(Automotive Patents Corporation; 342, Madison Avenue, New York, U.S.A.) Feb. 7, 1933, No. 3782. [Class 80 (ii).] A clutch comprises a driven member 112, a driving member 101, and a presser plate or the like 109 which is movable to effect limited cooperative engagement between the driving and driven members but is normally held in inoperative position, and includes centrifugal weights 126 on the driving member to effect engagement, separate, individual stop means 127 being provided for each weight to limit the engaging force. In the application of the clutch to motor vehicles, on opening the throttle to speed up the driving member 101, the centrifugal weights 126 move outwards about their pivots 124 and their arms 129 press against projections on a cage 132, which thus is slid to the right and through springs 133 and a plate 131 rotates levers 125 carrying cams 123 which act on pins 121<a> to force the presser plate 109 into engagement with the driven disc 112, the pressure being limited by the engagement of the stops 127 with the master plate 103. The clutch may be manually disengaged by a yoke 140 connected to the clutch pedal and acting through a sleeve 137 and bearing 135 on the plate 131. Reference has been directed by the Comptroller to Specification 371,308.
Patent GB-855564-A (GB)
Title: Improvements in the preparation of cyclopentane dicarboxylic acids
Filed: 1958-11-25
Abstract: A process for preparing cyclopentane-1,3-dicarboxylic acids comprises condensing a cyclopentadiene hydrocarbon having no more than one C1-C4 alkyl side chain with a lower mono-olefine, hydrating the resulting bicyclo-(2,2,1)-heptene with a strong acid catalyst and oxidising the resulting bicyclo-(2,2,1)-heptanol compound.  A dimer of cyclopentadiene may be used in the condensation step and the olefine used is preferably a C2-C4 alpha mono-olefine.  The hydration step is preferably carried out in a paraffin hydrocarbon at 0-30 DEG C. using 2-8 mols of concentrated sulphuric acid and the oxidation step in a paraffinic hydrocarbon at 50-80 DEG C. using 4-10 mols of nitric acid in the presence of vanadic acid as catalyst. The excess nitric acid is removed by distillation and the dicarboxcylic acid product extracted e.g. with benzene or water. An example describes the Diels-Alder condensation using dicyclopentadiene and ethylene and the subsequent hydration and oxidation to give cyclopentane -1,3-dicarboxylic acid (norcamphoric acid).  Specification 855,565 is referred to.
Patent GB-564114-A (GB)
Title: Improvements in and relating to tuning mechanisms for wireless sets
IPC: H03J1/06
Filed: 1943-03-09
Abstract: 564,114. Adjusting wireless apparatus. PHILIPS LAMPS, Ltd., and RICHARDS, C. L. March 9, 1943, No. 3828. [Class 37] In a click-action tuning mechanism for a wireless set comprising a tuning shaft which has to be rotated for driving the tuning member, the driving connection between the tuning knob and the tuning shaft is normally without play, but during the click action the driving connection is modified so as to temporarily release the tuning shaft. As shown in Fig. 2, a shaft 15 carrying the driven tuning element (not shown) has fixed-to it an arm 14 having a locking pin 11 on a bell-crank lever 12 biassed anticlockwise about a pivot 13 by a spring 16. The pin 11 is adapted for engagement with cam surfaces 23, 24 on a locking plate 19, any number of which can be placed 'in desired positions on a circular plate 20 concentric with shaft 15. The arm 14 is adapted to be driven by the engagement with pin 11 of a triangular aperture 10 in an arm (not shown) rotated coaxially with shaft 15 by rotation of the tuning knob. This movement forces pin 11 out of locking engagement with plate 19 and when clear of surface 23, pin 11 is forced by spring 16 into the apex of aperture 10 to give a positive drive to arm 14. On encountering slope 23, pin 11 is forced inwardly thus removing the positive drive between 10 and 14 and allowing pin 11 to enter notch 24 so as to be accurately located independently of the tuning knob. In the modification shown in Fig. 4, a tuning knob 1 drives a drum 4 carrying a disc 9 having an aperture 10 for driving engagement with a pin 11 on a plate 31 which is diametrically slidable against the action of spring 32, on a disc 27 fixed on the tuning shaft 15. Disc 27 has a single notch 28 for engagement with one of a number of locking means, each comprising a locking pin 30 on lever 29 pivotally mounted in a selected position on a circular plate 20 and spring biassed into engagement with disc 27. From the locked position shown, rotation of disc 9 causes pin 11 and plate 31 to be moved to the right due to engagement of pin 11 with one of the sides of aperture 10 adjacent the outer apex. This forces pin 30 out of the recess 28 and positive drive is resumed due to pin 11, under the action of spring 32, engaging the inner apex of aperture 10. When recess 28 meets the next pin 30, slide 31 is moved to the left to remove the positive drive, and allow accurate location of disc 27. In a further modification, Fig. 6 (not shown), the disc 27 has a number of locking recesses co-operating with a single spring-pressed locking lever. The locking mechanism may be nullified to allow simple tuning by holding back the locking levers by mechanism operated by a separate knob, or by auxiliary movement of the tuning knob.
Patent GB-1143181-A (GB)
Title: Method of manufacturing web or flange plates for structural girders
Inventor: SEREDYNSKI FRANCISZEK
IPC: B21B37/24
Filed: 1966-01-28
Abstract: 1,143,181. Rolling. BRITISH IRON & STEEL RESEARCH ASSOCIATION. 13 Jan., 1967 [28 Jan., 1966], No. 3918/66. Heading B3M. [Also in division G3] A web or flange plate for a girder varying in thickness along its length is made by rolling by continuously calculating from the measured angular displacement of a roll 23, the length of rolled plate and continuously calculating the adjustment required to the roll gap to produce the required thickness variation. A configuration of the desired plate is fed to a pattern setting device 29, which may be arranged to read a punched paper or magnetic tape, or may be a simple plugboard or a template traversed by a feeler. At the start of the roll pass, the angular roll displacement is measured by a pulse generator 32 whilst the workpiece travels a distance #l determined by sensing devices 33, 34. After calculating the coefficient of friction from formulµ, it is assumed to be constant during the roll pass and the length of rolled plate is continuously calculated by a computer 28 using the measured angle of roll displacement. The adjustment to the roll gap is continuously calculated and the information from the computer is fed to a servo control 39, which drives a motor 27 to move by screw adjustment the upper roll 25.
Patent GB-611503-A (GB)
Title: Improvements in or relating to shaft seals
IPC: F16J15/36
Filed: 1946-11-26
Abstract: 611,503. Shaft seals. BEST, C., and MOLINS MACHINE CO., Ltd. Nov. 26, 1946, No. 3920/48. Divided out of Complete Specification of 611,416. [Class 122 (v)] In a shaft seal of the type in which one end of a rubber sleeve is secured to the shaft and the other end is formed as a sealing ring having an end face held by a helical spring in sealing engagement with the shaft bearing, a sealing ring 4 pressed by a spring 6 against a co-operating ring 7 is secured to a shaft 2 by a rubber sleeve 1 which comprises a tubular portion surrounding, and being clamped by an outer ring 5 to, the periphery of the ring 4 and a further tubular portion encircling and being permanently secured to the shaft 2, e.g. by a ring 3. Rubber forced by the ring 5 into a circumferential groove in the ring 4 assists in securing the latter to the sleeve and hence to the shaft 2. The ring 7 of bronze is held in the housing bearing 8 by a metal ring 9.
Patent GB-712139-A (GB)
Title: Improvements in motor cycles, motor tricycles and the like light motor vehicles
IPC: B62K11/06
Filed: 1952-02-14
Abstract: 712,139. Frames for motor-cycles and the like. KREIDLER, A. Feb. 14, 1952 [March 5, 1951], No. 3920/52. Classes 79(3), 136(1) and 136(3) In a light automobile vehicle of the type in which a single wheel is propelled by a engine, e.g. a motor cycle, a box-like element 2 is secured to the main frame member 1 and has connected to it the engine unit 3, rear wheel forks 8 and the stand 7 for temporarily supporting the vehicle, when at rest.
Patent GB-1090832-A (GB)
Title: Method of treating elastic fibres of segmented linear polymers
IPC: D01F6/72
Filed: 1965-01-29
Abstract: 1,090,832. Treating elastic fibres of segmented polymers. KURASHIKI RAYON KABUSHIKI KAISHA. Jan. 29, 1965 [Jan. 31, 1964], No. 3964/65. Heading B5B. Elastic fibres, particularly elastic polyurethane fibres, consisting of segmented polymers the molecules of which contain segments derived from organic compounds having melting points below 80‹ C. and which are soluble in or swollen by organic solvents are treated in order temporarily to reduce their elasticity by stretching them at a temperature below 100‹ C. and then treating them at a temperature between room temperature and 100‹ C. for a period of time less than 10 minutes with an organic solvent which is a non-solvent for the fibre, but which is a solvent or a swelling agent for the compound of melting point below 80‹ C. from which the segments are derived. The solvent may be an alcohol, an ester, a ketone, an aromatic hydrocarbon or a halogenated hydrocarbon. The solvents used in the examples are methanol at 60‹ C. and isobutyl acetate at 80‹ C. The fibres may consist of polyurethane elastomers or block polymers of polytetramethylene glycol and polyethylene terephthalate. The polyurethane elastomers may be prepared from tetramethylene glycol and other polyglycols having melting points below 80‹ C., or from polybutylene adipates having melting points below 80‹ C., by reactions with polyisocyanates of molecular weight between 200 and 7000, and chain extenders such as diamines, dioles and water. The treatment with the organic solvent may be carried out simultaneously with or subsequently to the stretching step.
Patent GB-991439-A (GB)
Title: Ink flask
IPC: B43L25/00
Filed: 1963-07-22
Abstract: 991,439. Inkwells. R. V. C. MANN. Jan. 3, 1964 [July 22, 1963], No. 3982/63. Heading B6P. An inkwell comprises an ink container of translucent plastic material with a dipping cup having a hole d in an internal part c thereof whereby ink can be fed into the cup by tilting the inkwell, an external part a of the cup having a spaced series of thin rubber rings b through which a pen point is inserted. A cap is provided for the cup.
Patent GB-836081-A (GB)
Title: Improvements relating to recording tapes such as magnetic tapes
IPC: G11B15/66
Filed: 1958-02-07
Abstract: 836,081. Threading magnetic tapes. BAR, S. Feb. 7, 1958 [Feb. 12, 1957], No. 4097/58. Drawings to Specification. Class 40 (2). [Also in Group XVI] A tape, particularly for use in magnetic recording, has its ends treated so as to retain a permanent curl, preferably of smaller radius than the core of the take-up spool so as to ease the threading and/or attachment of its leading end thereto. The same treatment applied to the trailing end prevents unwinding of the free end of the tape on a full spool. Alternative tape treatments to achieve the curling are described.
Patent GB-984717-A (GB)
Title: Solid tyre
IPC: B60C7/00
Filed: 1964-01-31
Abstract: 984,717. Solid tyres. UNITED STATES RUBBER CO. Jan. 31, 1964 [April 30, 1963], No. 4115/64. Heading B7C. In a solid tyre 10 comprising a layer 13 of tread rubber reinforced with wire filaments and secured around a steel band 11, separation of the layer from the band is inhibited by a layer 12 of wire-free rubber preferably 0.03 inch thick secured therebetween. A layer 14 of wire-free rubber may be applied to the surfaces of the layer 13 not contacting the layer 12 to protect the mould from wire damage during curing. The tread layer 13 is preferably formed of laminations of rubber stock applied by a three-roll calender, and the calendering operation tends to orient the wire filaments circumferentially of the band 11.
Patent GB-103730-A (GB)
Title: Improvements in Coin Freed Apparatus for Playing a Game of Skill.
Inventor: VERRECCHIA GIOVANNI BATTISTA
IPC: G07F17/38
Filed: 1916-03-21
Abstract: 103,730. Verrecchia, G. B. March 21, 1916. No Patent granted (Sealing fee not paid). Ticoli billiards and the like.-In apparatus of the type in which the player projects a hall and endeavours to catch it in a movable cup c under his control, a number of fixed cups 1 - - 9 are provided beneath the cup c; balls falling into the cups 1, 2, 8, 9 pass by a shoot 10 to a barrier n and are lost to play; balls falling into the cups 4, 6 pass to a reserve shoot 11; whilst balls which fall into the cups 3, 5, 7 pass by shoots 12, 11 into play again, simultaneously releasing the balls in the reserve shoot. A hall caught in the movable cup c passes by a shoot h to the shoot 12 and effects the return of the coin. the delivery of a check, and the release of the reserve balls. The balls, preferably three in number, are normally retained by a pivoted barrier n raised by the insertion of a coin and temporarily held in the raised position by a catch n<2>, which is tripped by the balls as they pass down the slope m. Balls are retained in the reserve shoot 11 by a wire 18 connected to a trip lever 19, one arm of which projects into the ball shoot 12. The coin-returning mechanism h<1>, j is connected to a trip lever i, which projects into the shoot h and is also connected by a wire 22 to the trip lever 19. The check-delivery mechanism w<1> - - w<5> is normally locked by the engagement of a detent 16, which projects into the shoot 12, with a fixed plate 17.
Patent GB-1380166-A (GB)
Title: Combination of a pilgrim tube rolling mill mandrel and a holder  thereof
IPC: B21B25/02
Filed: 1972-01-28
Abstract: 1380166 Rolling tubes MANNESMANN AG 28 Jan 1972 [2 Feb 1971] 4227/72 Heading B3M A mandrel for a pilgrim tube rolling mill includes a tang 4 for reception in a mandrel holder 5 which is provided with an abutment ring 7, and one or more thickened portions 3 for preventing turning of the workpiece 1 positioned between a cylindrical working portion 2 and the tang end 4 in front of and nearer to the abutment ring 7 than the free end of the mandrel. In one embodiment the thickened portion 3 is formed by a frusto-conical portion which may be provided with longitudinal notches (Fig. 2, not shown). In another embodiment (Fig. 3, not shown), the thickened portion is formed by radially expanding segments (9, 10). The mandrel may be internally cooled.