baber/WOPTO huggingface dataset:
Patent GB-1436528-A (GB)
Title: Flame retardant acrylic fibres
IPC: D01F6/18
Filed: 1974-04-29
Abstract: 1436528 Acrylic fibres AMERICAN CYANAMID CO 29 April 1974 [9 May 1973] 18747/74 Heading B5B [Also in Division C3] A flame retardant acrylic fibre comprising a first acrylonitrile polymer containing at least 50% acrylonitrile. An amount of a halogencontaining vinyl monomer sufficient to impart flame retardancy to the fibre, and any balance of a halogen free vinyl monomer, a second acrylonitrile polymer free from halogen, and containing at least 70% by wt. of acrylonitrile and any balance of one or more halogen-free vinyl monomers the second polymer being incompatible with the first polymer and being present to the extent of 2-15% by wt. of the total of the first and second polymers, is made by mixing a solution of the first acrylonitrile polymer in an aqueous inorganic solvent with a solution of the second acrylonitrile in the same solvent to form a spinning composition containing 98-85% of the first polymer and 2- 15% of the second polymer, extruding the composition into an aqueous coagulant to form wet-gel filaments, washing free of solvents, stretching, relaxing the stretched wet-gel fibres under hot-wet conditions and drying the relaxed filaments. In preferred mixtures the first polymer comprises 81À1% acrylonitrile, 9À2% methylmethacrylate and 9À7% vinylidene chloride and the second polymer 89À3% acrylonitrile and 10À7% methylmethacrylate. Solvents for the polymers include 40-60% by wt. aqueous solutions of NaCNS; the fibres are stretched to 6-14 times their length, relaxed in saturated steam at 110‹ C. for 10 mins. and dried at a dry bulb temperature of 100‹ C. and a wet bulb temperature of 36‹ C.
Patent GB-1396453-A (GB)
Title: Inlet filter and noise suppressor enclosure for compressing apparatus
IPC: F04B39/16
Filed: 1973-04-18
Abstract: 1396453 Silencers; centrifugal compressors WORTHINGTON COMPRESSORS Inc 18 April 1973 [20 April 1972] 18779/73 Headings F1B and F1C An inlet, filter and noise suppressor enclosure for a compressing apparatus comprises a housing having an inlet, a chamber 13, Fig. 3 with a sound absorbing lining, a filter 17 and an outlet 24 for connection to a compressor inlet, by-pass means 30, Fig. 6 being arranged to pass compressed gas back through the chamber for recycling back to the compressor. The enclosure 6, Fig. 2 feeds a centrifugal compressor 1 driven through a compound epicyclic gear train 2 by driving means 4. The compressed air or gas passes via multi-cooler 7 to discharge line 8 which has a by-pass line 10 connected to the enclosure. An enclosure 11 protects the operating controls. In another embodiment a composite enclosure 50, Fig. 10 e.g. of fibreglass, has a control enclosure 54 with an instrument panel 61 protected by an upper housing section 55 which forms an outer inlet chamber 55a separated by a filter 67 from an inner inlet and by-pass chamber 55b which has a sound absorbing lining 72 and may have a baffle 322 or a muffler 30, Fig. 6. The outlet end of a blow-off pipe 71, which connects to the compressor by-pass may enter a separate blow-off chamber 73, Fig. 12.
Patent GB-742723-A (GB)
Title: Improvements in or relating to binding material
Inventor: RADTKE ADELBERT CARL
IPC: B65D63/10
Filed: 1953-07-07
Abstract: 742,723. Fabrics composed of agglutinated cords. INTERNATIONAL HARVESTER CO. July 7, 1953, No. 18797/53. Class 140. [Also in Group XXV] Bindingmaterial in the form of a ribbon, particularly for tying bales of compressed material, comprises a row 27 of laterally-spaced groups 21 of longitudinally extending glass filaments, each group 21 comprising a number of filaments laid in parallelism and untwisted, and a thermoplastic covering enclosing and separating said groups, the covering comprising a synthetic thermoplastic material, e.g. polystyrene, polymethyl methacrylate, nylon, or a cellulose derivative. The filaments of each group 21 may be bonded together and then the groups passed through a vat containing the thermoplastic covering material in the fluid state, whereby they are covered, as at 28.
Patent GB-1146203-A (GB)
Title: Synthetic elastomers
IPC: C08F36/04
Filed: 1966-04-28
Abstract: 1,146,203. Polymerizing dienes. MICHELIN & CIE (COMPAGNIE GENERALE DES ETABS. MICHELIN). 28 April, 1966 [29 April, 1965], No. 18799/66. Heading C3P. Polymers of one or more dienes and optionally one or more aromatic vinyl compounds are made in solution using as the catalyst an organolithium compound, e.g. in a hydrocarbon, by introducing during the polymerization to stop the lengthening of a proportion of the polymer molecules an adjuvant compound which is an organic mono- or polyhalogenate having at least one halogen atom carried by a carbon atom in the alpha position relative to a double ethylenic bond or an aromatic nucleus, and the amount of the added adjuvant compound being less than an equimolar amount compared with the amount of organolithium compound. The adjuvants are described in Specification 1,116,660. Suitable adjuvants are 1,4-diiodo- 2-butene, 1,4-dibromo-2-butene, 3,4-dibromo- 1-butene, 1-bromo-2-butene, allyl iodide, bromide or chloride, and benzyl chloride. The adjuvant may be added with additional monomer, a new monomer, or a partially polymerized monomer solution. The hydrocarbon solvent may contain a small amount of a polar compound. After the adjuvant has been introduced polymerization conditions may be altered. The conjugated diene may be butadiene, isoprene, dimethylbutadiene, or piperylene. The vinyl aromatic compound may be styrene, alphamethylstyrene, vinyl toluene, divinyl benzene, or vinyl naphthalene. Exemplified polymers are polybutadienes, and copolymers of butadiene and styrene.
Patent GB-1385586-A (GB)
Title: Circuit arrangements for measuring the induced secondary voltage  of a transformer
IPC: G01R13/40
Filed: 1972-04-24
Abstract: 1385586 Analogue-to-digital converter ERIC H FORD RESEARCH & DEVELOPMENT Ltd 24 April 1973 [24 April 1972] 18841/72 Heading G4H [Also in Division G1] The induced secondary winding voltage of a transformer is measured by connecting between earth and one primary winding terminal, a voltage threshold device, a current limiter and an emitter of electromagnetic energy. The Zener diodes Z 1 -Z n  conduct at different voltages equally spaced between a maximum Z n  and minimum Z 1 . The number of light-emitting or GaAs diodes D 1 -D n  which are energized indicates the approximate value of the primary voltage from which the secondary voltage can be determined. In an alternative embodiment only one path is used, the intensity of the radiation emitted being a measure of the primary voltage. The diodes may emit visible or infrared radiation and the coil T may be an automobile ignition coil.
Patent GB-399624-A (GB)
Title: Improvements in or connected with hinged stays for swing mirrors, casements and other swinging objects
IPC: A47B27/02
Filed: 1932-07-04
Abstract: 399,624. Stays ; hinges. WARSHAWER, S. S., 321, Old Street, London. July 4, 1932, No. 18866. [Classes 65 (i) and 65 (ii).] A stay for swing mirrors, casements, or other articles comprises a slotted bar 8 pivoted to a bracket 10 on the mirror, a bracket 19, on the frame, with an openended slot 20 and a pivoted hook member 22, and a bolt 13 arranged to slide in the slot of the stay-bar and to be clamped in any position therein by a wing nut, the bolt having grooves in its head 13a which engage the slot 20 in the bracket 19 ; the hook member 22 can be swung over to hold the head of the bolt in engagement with the slot 20. The bolt may be provided with fibre or other washers 15 and a spring washer 17 to increase the grip on the bar. The mirror may be adjusted to any position by shifting the bolt 13 along the bar 8 while its head remains engaged with the slot 20 in the bracket 19, and may be readily moved and then brought back to the same position by moving the hook member 22 and lifting the bolt clear of the slot 20. The bracket 10 may be provided with a handle portion 11. The mirror is hinged, as shown, by slotted brackets engaging over headed pins on the frame.
Patent GB-1176614-A (GB)
Title: Metal Plating over Plastic
IPC: C23C18/26
Filed: 1968-04-22
Abstract: 1,176,614. Emulsions for treating plastics. SHIPLEY CO. Inc. 22 April, 1968 [11 Mav. 1967], No. 18915/68. Heading B1V. [Also in Divisions C3 and C7] A plastics surface contacted with an emulsion comprising a solvent and a non-solvent, e.g. water, for the plastics. The Specification gives examples of solvents for the plastics. Emulsifying agents, e.g. lauryl sulphate, sorbitan tristearate, ethylene glycol, fatty acid esters, glycerol monostearate, tall oil fatty acid soaps, and calcium sulphate, may be added. An example refers to an emulsion of water, methylene chloride, O-dichlorobenzene, and a tall oil soap emulsifier containing 40%-45% rosin fatty acids.
Patent GB-274503-A (GB)
Title: Sparking plug for internal combustion engines
IPC: H01T13/54
Filed: 1927-07-18
Abstract: 274,503. Fairweather, H. G. C., (Soo Anon. Nikon). July 18, 1927. Sparking-plugs.-The inner end of the casing is closed except for lateral openings 5. Sparking takes place between the central electrode and the surface of the bridge piece.
Patent GB-130527-A (GB)
Title: Improvements in Twist Drills.
Inventor: BARNES JOHN WILLIAM
IPC: B23B51/02
Filed: 1918-11-21
Abstract: 130,527. Barnes, J. W. Nov. 21, 1918. Drawings to Specification. Drills.-Twist drills for cutting metal are made of such a pitch that the profile line of the groove makes an angle of 19 to 21 degrees with the axis of the drill; the most suitable angle is 19.5 degrees.
Patent GB-598085-A (GB)
Title: Improvements in inlet fittings for flushing tanks
IPC: E03C1/10
Filed: 1945-07-26
Abstract: 598,085. Supply fittings for waterwaste-preventers. RIGBY, E. E. July 26, 1945, No. 19126. Addition to 572,011. [Class 26] [Also in Group XXIX] In inlet fittings for flushing tanks as described in the parent Specification, means are provided to trip the non-return air valve each time the tank is emptied. In the form shown in Fig. 1, a lever 35 has a pin-and-slot connection 36 with the lever 34 pivoted to the plunger 33 in the syphon 5 and carries at its opposite end a pin 37 which on each operation of the lever 34 abuts against the bell 28 and forces it from its seating. A small shield 38 deflects any water which spurts up when the syphon is operated. In the form shown in Fig. 2, the valve 30, 32 is tripped from its seating by a pin 39 on a bell-crank lever 40 pivoted to a bracket 40 on the tube 12, the opposite end of which is within range of a projection 43 on the lever 9 of the ball 13. In the third form, Fig. 3, the pin 44 is integral with the valve 58 and slides within a flange 45 on top of the valve housing, a pin 48 serving as a stop. A light shield 46 serving as an anti-splash device is screwed at 47 on to the pin 44 and the valve is actuated by a lever 50 pivoted at 51 and having a projection 52 which is tripped by an extension 53 of the flushing lever.
Patent GB-121371-A (GB)
Title: Improvements in or relating to Guards and Covers for Belts, Chains or for similar purposes.
Inventor: RIGBY GEORGE EDWIN
IPC: B62J13/04
Filed: 1917-12-28
Abstract: 121,371.. Rigby, G. E. Dec. 28, 1917. Gear cases, chain guards, and the like. - A guard or cover for belts and chams for cycles and motor-cycles is detachably mounted on a skeleton framework consisting of a metal band a secured to pairs of cross-arms b attached to a longitudinal arm b<1>. The arm b<1> is mounted on the spindle of the back wheel by means of a slot c, and is fixed at d to the gear bracket or other part of the cycle frame. The band a may be of curved section to form an oil bath at f.
Patent GB-286705-A (GB)
Title: Improvements in or relating to power actuated sheep shears and the like
IPC: B26B19/24
Filed: 1927-07-19
Abstract: 286,705. Chicago Flexible Shaft Co., (Assignees of Kocourek, H.). March 10, 1927, [Convention date]. Flexible shafts.-In power-driven sheep sheering or like apparatus in which cutter actuating mechanism enclosed in a hand grip A is driven through flexible shafting C and a swivelled sheath or guard D covers the hinged connection to such shafting, a flared ferrule E rigidly secured to the grip A extends over the forward end of the sheath to protect the hand from movements thereof. The ferrule may be secured to the grip A by an internal or external extensions e forming a force fit. The sheath D is clamped on a tapered enlargement 21 of a swivelling sleeve B by a conical ring 25, Fig. 4, with tangs 27 and a clinching lug 28, the parts being pressed axially by a nut 29<a>. The pivotal connection between the sleeve B and the flexible shaft casing member C is located on the pitch circle of the intermeshing gears 20 as is usual.
Patent GB-349808-A (GB)
Title: Locking device in children's wheeled toys
IPC: A63H17/26
Filed: 1930-06-24
Abstract: 349,808. Mechanical toys. RICHTER, J., 1, Havelstrasse, Brandenburg-on-Havel, Germany. June 24, 1930, No. 19209. [Class 132 (iii).] In a wheeled toy having a locking device of the kind in which one bearing i for the driving axle a is elongated so as to allow a projection b on the axle to abut a fixed stop d when the toy is lifted, a weak spring k bears downwardly on the axle to hold it in locked position when the toy is held in positions other than vertical.
Patent GB-222254-A (GB)
Title: A new or improved attachment for violins, violas, 'cellos, and other stringed instruments
IPC: G10D3/06
Filed: 1923-07-26
Abstract: 222,254. Woodward, E. H. L. July 26, 1923. Violin &c. finger-boards.-A device for use in teaching the violin &c. consists of a metal stamping or wire frame directly and detachably secured over the strings and having stops resting on the fingerboard. In Fig. 2 the metal stamping is of channel form with transverse slots 4 for the fingers and stops or supporting-pins 8, and is secured by means of a pin passing under the free end of the fingerboard and through lugs 11, and by strings 12 tied round the neck of the instrument. In Fig. 4 the wire frame is attached by means of legs 14 clipping on to the fingerboard and by turned-in parts 15 inserted under the strings on the peg-box side of the nut. In this form the fingers are placed close to the crossbars 6 on either side thereof. The notes produced of the chromatic scale may be marked on the cross-bars 6, Fig. 2, or. with the device shown in Fig. 4, on the fingerboard.
Patent GB-517773-A (GB)
Title: Improvements in or relating to anti-corrosion bodies produced by sintering, fitting and like processes
IPC: C22C1/04
Filed: 1938-06-29
Abstract: 517,773. Indiarubber compositions; resinous composition ; sintered compositions. GILBERT, W. V. June 29, 1938, No. 19244. [Class 70] [Also in Group IV] In preparing agglomerated material from powdered metals, resins, solenium, comminuted vulcanizable rubber &c. by heat and pressure but without complete fusion, a salt or mixture of salts of chromic acid is added to the powdered material and serves as an anti-corrosion agent. The materials are useful as anti-corrosion bearings, brake linings &c. Fusible substances such as fluorides, borates or silicates or refractory materials such as chromite, zirconia, titanium oxide, silica, or carborundum, or boron, or asbestos may be added. The product may be rendered porous by addition of a soluble substance which is subsequently washed out, such as sodium or potassium carbonate or potassium molybdate or chromate or by addition of a volatilisable substance. The powdered material may be a chromate which is agglomerated by a more fusible chromate. Powdered metal may be mixed with metal gauze, wool or turnings.
Patent GB-1380127-A (GB)
Title: Secondary air preheating unit for an exhaust gas treating system
IPC: F01N3/20
Filed: 1972-04-26
Abstract: 1380127 Purifying I C engine exhaust gases; silencing NISSAN MOTOR CO Ltd 26 April 1972 [30 Oct 1971] 19280/72 Heading F1B [Also in Division F4] Secondary air for supply to an exhaust gas treating device, e.g. a catalytic reactor to oxidize the exhaust gases is heated in an S-shaped heat exchanger 30 within an exhaust silencer 10. The exchanger 30 has external fins (36), Fig.2 (not shown), and is mounted between peripheral flanges 14a, 14b on one part 14 of the silencer casing 12 and peripheral flanges (16a, 16b) on the other casing part (16).
Patent GB-1405720-A (GB)
Title: External sizing of extensible paper
IPC: D21H27/00
Filed: 1973-04-24
Abstract: 1405720 Paper CLUPAK Inc 24 April 1973 [10 Oct 1972] 19285/73 Heading D2B A method for treating a paper web to improve its tensile strength, stiffness, burst, and tensile energy absorption characteristics comprises compacting the paper web without creping to render it extensible, impregnating both sides of the compacted web with a starch solution, and drying the impregnated web. The paper web may 'be internally sized with resin.
Patent GB-222257-A (GB)
Title: Improvements in and relating to valve gear for steam and other fluid pressure engines
IPC: F01L29/04
Filed: 1923-07-27
Abstract: 222,257. Riekie, J. July 27, 1923. Link motion and linkage gears.-To ensure a full opening to both steam and exhaust for all positions of the gear, means to ensure a substantially uniform valve stroke are interposed between the adjustable element of the gear and the valve spindle. In a Walschaert's gear, Fig. 1, the combination lever 5 slides in a guide 7 pivoted to the valve spindle 6 and is moved longitudinally by a link 10 connected to a slide 11 which is connected to a fixed pin 14 through toggle arms 13 connected through links 15, 18 and bell-cranks 17, 16 to the adjusting and reversing gear. The valve travel due to lever 5 varies inversely as the travel due to link 3. Ir. a modification, the ends of a link pivoted on rod 6 are connected respectively to the block in link 3 and the arm 5, the upper end of which moves in a slide pivoted to a second slide which is longitudinally adjusted by toggle-mechanism connected to the reversing gear and the lower end of which arm 5 is connected directly to the arm 8.
Patent GB-926164-A (GB)
Title: Improvements in or relating to typewriter ribbons or the like
IPC: B41J31/05
Filed: 1961-05-29
Abstract: 926,164. Typewriter ribbons and the like. ETABLISSEMENT CONSULTING. May 29, 1961 [Jan. 11, 1961], No. 19338/61. Class 96. [Also in Group XVI] A typewriter ribbon or the like comprises a base of a flexible film of a normally solid plastics material with a transfer coating on one side, and an electrically conducting coating containing metallic powder on the other. The metallic powder may be aluminium, copper or bronze powder, and may be applied as a dispersion in a solution of film-forming synthetic resin such as polystyrene or polyvinyl acetate, or of chlorinated rubber. The film may be of cellulose acetate, polyethylene, polyvinylidene chloride or a polyester such as polyethylene terephthalate.
Patent GB-183354-A (GB)
Title: Improvements relating to electrical control systems
IPC: B60L9/04
Filed: 1921-07-18
Abstract: 183,354. Brooks, R., and Metropolitan- Vickers Electrical Co., Ltd. July 18. 1921. Master control systems.- Relates to railwayvehicle control systems in which the control switches are actuated by low-potential current derived from high-potential supply through a motor-generator set. The invention consists in providing pneumatic means to close a line-switch 9 between the supply 6 and the motor-generator 2. Compressed air is taken either from a trainpipe 15, or from a reservoir 18 charged by a hand-pump 17, and is admitted by an air-cock 21 to close the switch 9. A pneumatic actuator 14 controlled by an air-cock 16 is provided for raising the trolly-collector 8.
Patent GB-1049894-A (GB)
Title: Tampon applicators
Inventor: MANN NORMAN PETER
IPC: A61F13/26
Filed: 1963-05-16
Abstract: Tampon applicators comprise two tubes of fibrous material (e.g paper, paperboard, or cardboard) slidable with respect to one another, said material being impregnated with a cationic, anionic or nonionic wetting agent.  The fibrous material may be impregnated with a condensate of nonyl phenol with ethylene oxide and cetyl trimethyl ammonium bromide as antiseptic.ALSO:Cationic, anionic or non-ionic wetting agents are incorporated into paper, paperboard or cardboard during the manufacture thereof.  The agents which are specified are a condensate of nonyl phenol with ethylene oxide and cetyl trimethyl ammonium bromide.
Patent GB-1063036-A (GB)
Title: Telomers of maleic anhydride and process for their manufacture
IPC: C08F22/04
Filed: 1964-05-11
Abstract: Telomers of maleic anhydride are produced by telomerizing a solution of maleic anhydride as taxogen in a chain-transferring solvent as telogen at 170-200 DEG  C. in the presence of a free radical forming compound.  The chain-transferring solvent is defined as a saturated aliphatic hydrocarbon containing 4-30 carbon atoms, at least one of which is tertiary, or a polymethyl benzene or polymethyl naphthalene. The free radical forming compound may be a dialkyl peroxide, diacyl peroxide, hydroperoxide or azo compound.  The molecular weight of the telomers produced is 300-3000.  The telomers may be reacted with water to give acids, with anhydrous alcohols to give semiesters, with inorganic bases to give salts, and with anhydrous amines to give amine/ammonium salts.
Patent GB-983031-A (GB)
Title: Hydraulic charging valve
IPC: F15B1/027
Filed: 1963-05-16
Abstract: 983,031. Valves. CATERPILLAR TRACTOR CO. May 16, 1963 [June 29, 1962], No. 19536/63. Heading F2V. The connection and disconnection of a source 16, Fig. 1, of charging fluid to and from an accumulator 11 is controlled by a spool valve 17 urged to the left by a spring 19 and to the right by accumulator pressure communicating via a radial bore 28 with a chamber 27 inside the spool. The spool has two positions defined by a pair of grooves 18, 18a that co-operate with a toroidal spring-detent 22. In the position shown the charging fluid is discharged through a conduit 33 which is closed by the spool upon the latter being moved to the left by the spring 19 when the accumulator pressure falls below the required level. In a modification, a check valve 54, Fig. 2, is disposed between the accumulator 11 and the charging groove 53 whilst the spool is urged to the right by accumulator pressure acting on a plunger 46. The detent is formed by balls 47a loaded by a spring 63 through a collar 61.