baber/WOPTO huggingface dataset:
Patent GB-1055683-A (GB)
Title: Copolymers of acrylonitrile
Inventor: SZITA JENO
IPC: C08F220/44
Filed: 1965-07-16
Abstract: Dyeable, film- and fibre-forming copolymers are made which consist of at least 80% by weight of acrylonitrile and a semi-carbazide monomer, or salt or quaternary ammonium compound thereof, having the formula <FORM:1055683/C3/1> in which R1 represents an alkenyl radical, X represents the radical <FORM:1055683/C3/2> in which n=2, 3 or 4, and R2 and R3 each represent an alkyl radical or, together with the N atom, form a ring which may contain other hetero atoms.  The copolymers may also contain units of other monomers, e.g. methyl acrylate, vinyl acetate, vinyl and vinylidene chlorides, styrene, styrene sulphonic acid and acrylamide.  The copolymers are prepared by copolymerization of the monomers in an aqueous medium of pH 3-5 in the presence of a redox catalyst system.  The examples describe polymerizing in the presence of a persulphate /pyrosulphite catalyst acrylonitrile and monomers of the formulae <FORM:1055683/C3/3> <FORM:1055683/C3/4> <FORM:1055683/C3/5> <FORM:1055683/C3/6> <FORM:1055683/C3/7> <FORM:1055683/C3/8> using methyl acrylate as an optional comonomer.
Patent GB-1101615-A (GB)
Title: Improvements relating to the production of imitation fur fabrics comprising pile fibres of differing lengths
IPC: D06P3/04
Filed: 1965-07-16
Abstract: A process for the production of pile fabrics having pile fibre of at least two different lengths in which over certain areas only of the fabric the shorter pile fibre are dyed differently from the longer, which comprises forming a pile fabric in which some of the pile fibres are more shrinkable than others, subjecting the fabric to conditions which cause differential shrinkage of the fibre, and printing the fabric with a printing paste containing a dyestuff and a liquid which is a solvent for the dyestuff and in the concentration and at the temperature at which it is used has a swelling action on the more shrinkable fibres, but not the less shrinkable fibres, and which has a boiling point above 100 DEG C and is insoluble or slightly soluble in water.  Shrinkage may take place at least in part before or after the fabric is printed. Preferably the more shrinkable fibres are, homopolymers, copolymers and mixtures of polymers of vinyl chloride and the less shrinkable fibres mohair or polyamides. Specified solvents are cyclohexanone, cyclopentanone or isophorone. The process is used to obtain artificial fur printed with irregularly disposed spots.
Patent GB-723079-A (GB)
Title: 1,4-diamino-2, 3-anthraquinone-dicarboximides
IPC: C09B5/24
Filed: 1952-12-01
Abstract: The invention comprises dyes for polyethylene terephthalate fibre of the formula:  <FORM:0723079/IV (c)/1> in which R stands for hydrogen or alkyl, hydroxyalkyl, cycloalkyl, or aralkyl, containing not more than seven carbon atoms.  In examples: 1,4 - diaminoanthraquinone - 2,3-dicarboxylic acid imide is prepared from the 2,3-diamide or dinitrile by heating with concentrated sulphuric acid and is itself reacted to give the compounds where R is methyl, n-butyl, isobutyl, benzyl, 2-hydroxyethyl, cyclohexyl, n-hexyl, or 3-hydroxypropyl by heating with the corresponding amine, methanol or ethanol, and nitrobenzene or o-dichlorbenzene.  Also in examples, 1,4-diamino-anthraquinone-2,3-dinitrile is reacted with sulphuric acid and isopropyl alcohol or sec.-butyl alcohol to give dyes of the above formula in which R is isopropyl and sec.-butyl respectively.
Patent GB-1426001-A (GB)
Title: Speed control and governor mechanisms for electric motors
IPC: A47J43/08
Filed: 1973-06-27
Abstract: 1426001 Motor controllers; speed-responsive switches SCOVILL MFG CO 27 June 1973 [3 July 1972 16 April 1973] 30493/73 Heading H1N A governor for an electric motor in a mixer or blender comprises a conductive rotary surface member 290 driven by the motor shaft 228 and having spaced protrusions 306 co-operating with a conductive brush 282 which is gently biased toward the surface member 290 so that it normally contacts the member 290 but skips a portion as the brush lowers itself back to the surface after passing each protrusion, the motor being supplied via the brush 282 and member 290 whereby if the motor speed drops the brush 282 will more closely follow the profile of the surface member 290 increasing the effective power and tending to restore the speed. The protrusions are preferably radial ridges all of which commence at the outside of member 290 and extend inward different distances, and the brush 282 is mounted on a pivoted arm 272 to be movable to engage the surface member 290 selectively between the outside and centre whereby such movement adjusts the speed of the motor, the speed increasing as the centre is approached and the brush 282 makes more extended contact with the member 290. The member 290 may be a copper disc carried on the upper surface of a gear-wheel 242 with the interposition of a resilient pad (294, Fig. 13, not shown) for sound reducing purposes. Connection to disc 290 is made by means of a bifurcated brass contact 296. The brush 282 is biased by a brass weight 284, for example, of about 5 grams, and arm 272 is moved across disc 290 for speed control by means of a knurled knob (218, Figs. 1 and 13, not shown) accommodated in the handle (216) of the mixer. The brush arm 272 may alternatively be biased by a permanent magnet under the disc 290. The rotary surface may be on a drum instead of the disc 290, and the brush may be biased by a spring.
Patent GB-372725-A (GB)
Title: Method of producing or repeating synchronised sound and picture indications
IPC: G09B5/06
Filed: 1930-10-13
Abstract: 372,725. Associated picture and sound reproduction. MESSTER-FILMTON GES., 43, Mauerstrasse, Berlin. Oct. 13, 1930, No. 30654. Convention date, Oct. 15, 1929. Void [Published under Sect. 91 of the Acts]. [Class 40 (ii).] Associated picture and sound reproduction for educational purposes is arranged so that a written description, signs or the like, corresponding to the picture image is projected upon the screen in synchronism with the related sound reproduction, so dispensing with the need for a textbook in the teaching of languages, or of the alphabet, &c. Thus the picture projected upon the screen may show an article the name of which is displayed in written form on the screen alongside the projected picture at the same time as this name is pronounced by the sound-reproducing means. The letters comprising the projected word may be built up from a number of small pictures of the article. By the heavy printing, or the printing in different sizes, of certain letters of the projected written matter, or by similar means, the variations in pronunciation of the reproduced sound can be emphasised and impressed upon a pupil's mind.
Patent GB-1150959-A (GB)
Title: Circuit Arrangement for Generating Non-Sinusoidal High Frequency Voltages
IPC: H02M7/523
Filed: 1967-07-04
Abstract: 1,150,959. Converting. ELIN-UNION FœR ELEKTRISCHE INDUSTRIES A.G. 4 July, 1967, No. 30690/67. Heading H2F. [Also in Division H3] A non-sinusoidal output inverter, for example for industrial heating, comprises two series circuits each comprising an electronic switch 1, 2 (shown as thyristors), a load winding 4, 4<SP>1</SP>, a D.C. supply 6 and a common capacitor 3. Assuming the capacitor is charged with its lefthand plate positive, firing thyristor 1 causes a half-cycle of oscillation in 3, 4 and the voltage on 3 to be thus reversed. Firing thyristor 2 now applies twice the supply voltage reversely across 1 to extinguish it and as a result of a halfcycle of oscillation in 3 and 4<SP>1</SP> the voltage across the capacitor is restored to its original polarity. The polarity of the windings is such that the output has the waveform shown- Fig. 4. An inductive load 5 may be connected in series with a further impedance 7 or may be a centre tapped inductor which itself may constitute the winding 4, 5. A second pair of thyristors 9, 10 and a second capacitor 11 may be connected similarly across the windings 4, 4<SP>1</SP>, the thyristors being in bridge configuration with diagonally opposite ones being fired in succession. The output may be controlled by controlling the D.C. supply voltage or by omitting firing pulses.
Patent GB-861983-A (GB)
Title: Collapsible and inflatable foam material
Inventor: GRAY THOMAS EDWARD HORACE
IPC: C08J9/34
Filed: 1956-10-09
Abstract: 861,983. Foam materials. DUNLOP RUBBER CO. Ltd. July 8, 1957 [Oct. 9, 1956], No. 30698/56. Class 52(4). [Also in Groups XVII and XXI] A collapsible and inflatable foam material comprises an air-impermeable skin housing a core of flexible material having at least a partially intercommunicating cellular structure, and means through which a gaseous medium can be evacuated from or admitted to the structure to vary the volume thereof. As described the material comprises a core of resilient polyurethane foam, # inch thick, sealed within a skin of flexible polyvinyl chloride composition sheeting, the core being either unattached within or bonded to the skin. When evacuated the material is reduced to about one eighth of its thickness. The material may be used for immersion suits for submarine personnel and aircrews, foam filled bed covers, pillows, cushions or the like.
Patent GB-844424-A (GB)
Title: Stationary liquid phase for gas chromatography
Filed: 1958-09-25
Abstract: In the analysis of gas mixtures the mixture is passed through an elongated mass of inert supporting material having a stationary liquid phase consisting essentially of a safrol.  It is particularly applicable to gas mixture containing C2-C16 hydrocarbons.
Patent GB-1030554-A (GB)
Title: Process for improving the dyeability of fibres and shaped articles of polypropylene
IPC: D06P1/649
Filed: 1964-08-04
Abstract: The affinity of polypropylene for dyes is improved by blending the polypropylene with at least one bisamide of formula R1X1R2X2R3 in which R1 and R3 are alkyl groups of 2-30 carbon atoms, R2 is an alkylene group of 1-10 carbon atoms, and X1 and X2 are -NHCO-, -CONH-, -NHCOO-, or -COONH-, the polypropylene material thus obtained being treated with at least one compound selected from halides of acetic acid (mao, di or tri chloro acetic acid) hydrogen halides (chloride bromide fluoride and iodide) and iodine dissolved in aqueous potassium iodide, followed by treatment with at least one aliphatic amine.  Dyes specified are acid, direct, chrome and reactive dyes which are anionic.
Patent GB-1146432-A (GB)
Title: Resin impregnated fibrous sheets
Inventor: BENNETT JOHN VINCENT
IPC: C08L63/00
Filed: 1965-07-20
Abstract: 1,146,432. Laminates and laminating. DUNLOP CO. Ltd. 17 June, 1966 [20 July, 1965], No. 30730/65. Heading B5N. [Also in Divisions B2 and C3] A fibrous web of sheet material such as paper or a textile fibre, which may be in the form of a woven fabric or a non-woven fabric may be impregnated with a material comprising the reaction product of (a) a polymer of one or more episulphides having at least two reactive terminal groups and (b) a potentially thermosetting aminoplast by spraying, brushing, spreading and especially dipping techniques and composite laminate structures may subsequently be formed and if desired a layer of a non-fibrous material such as a strip of aluminium or other heat-resistant material may be included to confer heat-resistant properties on the impregnated fibrous material. The fibrous layers may be united together before the impregnating material is applied or they may be non-united layers which are united by the impregnating material itself giving a flexible composite fabric. Layers of fibrous web may be mechanically locked together, for example, by needling, or they may be impregnated and laminated together by means of conventional laminating resins, for example, aminoplastics or phenolin resins and the top web is then impregnated with the impregnating material giving a laminate, which is not usually flexible, having a working surface very resistant to alkali and to chipping. Drying of the impregnated fibrous web is effected at room temperature or at 70-80 C. and curing may be effected at 140-200 C. while the coated web is compressed between press platens. The examples describe the formation of laminates whereby both surfaces of a decorative paper web are coated with the impregnating material and also both surfaces of a white overlay paper web are similarly coated and the two coated webs air-dried, superimposed and pressed together for 10 minutes at 180 C. between chromium plates previously coated with a silicone release agent. The resulting sheet materials may be provided with a backing of adhesive, which may be covered with a release paper. The cured surfaces are resistant to staining by household liquids and cleaners. Uses:-Covering materials for kitchen shelves, walls and tables.
Patent GB-796917-A (GB)
Title: Improvements in or relating to refrigeration driers and to methods of assembling such driers
IPC: F25B43/00
Filed: 1956-10-09
Abstract: 796,917. Drying gases. CALUMET & HECLA, Inc. Oct. 9, 1956 [Jan. 16, 1956], No. 30761/56. Class 34(1) A drier for use in refrigerating apparatus comprises a copper or aluminium tubular casing 10, Fig. 1, having inlet and outlet openings 12, 14, and packed with silica gel 16 between baffle plate and screen assemblies 18. Each assembly comprises a thermoplastic, e.g. nylon, plate 20 and a mesh screen 22, Fig. 4. The plate and screen are so shaped that a flange integral with the screen is located within a channel 28 formed in the plate. When fitted in the casing 10 the plate 20 is heatbonded thereto. The plate has holes 36 and is shaped to form a space between it and the screen. In a modified plate and screen assembly, Fig. 5, the flanged edge portion of the plate is shaped such that a space 68 is formed on construction of the assembly. In assembly the gel 16 and the baffle plate and screen assemblies are placed in the casing 10 before the ends are reduced to provide the openings 12, 14. A spinning operation effects such reduction by relatively rotating a die 40 and the casing about the axis of the die whilst moving the casing into the die. The heat generated by the spinning may be used to heat-bond plates 20 to the casing.
Patent GB-791777-A (GB)
Title: Improvements relating to the growing of single crystals
IPC: C30B25/00
Filed: 1955-10-27
Abstract: Metallic single crystals are obtained by providing a metal vapour by the decomposition of a volatile metal compound at atmospheric pressure and depositing the metal upon a substrate. The compound, which may be a metal halide, may be decomposed by reduction or thermal decomposition.  Crystals are obtained from copper iodide, silver chloride and ferrous chloride by reduction with hydrogen, and from platinum tetrachloride by heating in air. The substrate may be glass or porcelain.  The compound may be contained in a porcelain boat in a tube furnace through which hydrogen or air is passed, the crystals of metal being deposited on the exposed surfaces of the boat.
Patent GB-137038-A (GB)
Title: Improvements relating to Controlling Devices for Electrically Wound Clockwork and other Mechanism.
IPC: G04C1/06
Filed: 1919-12-09
Abstract: 137,038. Fabrik Elektr. Apparate F. Sauter. Dec. 24, 1918, [Convention date]. Winding apparatus, electric.-The first wheel 2 of the movement is on the arbor of the barrel 1 and to wind up the mainspring the barrel, having teeth, is turned by an electro-motor 7. An arbor 16 bearing on screw-thread is driven by the wheel 2 and a long toothed nut 14 thereon gears with the barrel teeth. Travelling towards the frameplate A as the main spring runs down, the nut turns a three-armed lever 18, 19, 21 from the position shown in full lines to that shown in dotted lines, thereby allowing a spring-pulled key 23, 26 which feels the arm 21 to close the circuit of the electro-motor. When the nut has returned towards the frame-plate B, a pin 20 projecting from it resets the three-armed lever and this in turn takes the key off the terminal 36.
Patent GB-1263844-A (GB)
Title: Elastomeric materials having exposed fibers
IPC: C08L21/00
Filed: 1970-06-25
Abstract: 1,263,844. Fibre-containing polymeric articles. FORD MOTOR CO. Ltd. 25 June, 1970 [14 July, 1969], No. 30836/70. Headings C3P and C3T. Polymeric articles, particularly fluid seals, comprise a blend of elastomeric material and polymeric fibres some of which are exposed at the surface of the article. The articles, which are free of other re-inforcing or filler materials, are made by conventional blending and are then surface heated to expose the fibres, e.g. by mild abrasion or chemical swelling to break the elastomer film covering the fibres adjacent the surface. Suitable elastomers are acrylonitrile-butadiene rubber, SBR, polyisoprene, polychloroprene, polyacrylates and silicone rubbers. Suitable fibres comprise polyamide, polyimide, polyethylene, polypropylene, polyurethane and polyfluorocarbons, e.g. P.T.F.E., poly(C 2 F 3 Cl) and C 2 F 4 -C 3 F 6  copolymers. The proportion of elastomer to fibres may be from 1 : 4 to 6 : 1 by weight. Examples are given of a cured shaft seal derived from 200 parts by weight of etched P.T.F.E. fibres and 100 parts of acrylonitrilebutadiene rubber, and of a dual material seal made from the above composition as face material and acrylonitrile-butadiene rubber as body material.
Patent GB-359199-A (GB)
Title: Improvements in book-matches
IPC: A24F27/12
Filed: 1930-10-15
Abstract: 359,199. Match books. CLEGG, J. S., Westgarth, Eagle Lane, Wanstead, London. Oct. 15, 1930, No. 30917. [Class 94 (i).] A match book case is formed from a single blank divided into three sections a, b, e by parallel lines of weakness d, the centre section b having secured thereto on opposite sides two sheaves K of book matches adapted to fold in opposite directions and to be enclosed by the oppositely folding outer sections a, e. In a modified form, the blank is doubly bent upon itself adjacent to the lines of weakness so as to form a hinge for the book matches.
Patent GB-248871-A (GB)
Title: Improvements in or relating to electric couplings
IPC: H02B1/42
Filed: 1924-12-24
Abstract: 248,871. Crabtree, J. A. Dec. 24, 1924. Plug couplings.-The insulator e, f containing the socket elements of a coupling is secured to its anchorage, e.g. to the box a by screws or bolts c which pass through holes in a plate b, resting on the insulator, into the bottom of the box a, grooves d being provided in the periphery of the insulator or one portion f of it, to accommodate the stems of the screws. As shown, an insulator is in two parts e, f, which are connected to each other and to the plate b by screws g passing upwards into blocks h which are inserted into holes in a screw-threaded boss portion m of the plate b. The plate b has a central opening to permit access to the socket tubes and the cover i of the box a is secured bv a flanged nut y which screws on the boss m. The insulator may have nipples which project through holes in the plate b and cover i the plug elements of the coupling being adapted to pass through the nipples.
Patent GB-1195836-A (GB)
Title: Fuel Systems for Gas Turbine Engines
Inventor: WARNE EUGENE HAROLD
Filed: 1966-07-11
Abstract: 1,195,836. Gas turbine engine fuel systems. JOSEPH LUCAS (INDUSTRIES) Ltd. Oct. 3, 1967 [July 11, 1966], No.31017/66. Heading F1G. The gas turbine engine fuel system described in the parent Specification is modified by replacing the single evacuated capsule of the control device 29 by a pair of evacuated capsules 35, 36, the capsule 36 being exposed via a passage 40 to the pressure at an intermediate stage of the engine compressor.
Patent GB-723758-A (GB)
Title: Improvements relating to coupling units for towing vehicles
IPC: B62D53/08
Filed: 1952-12-08
Abstract: 723,758. Arrangement of wheels and axles. TAYLOR, F. G. July 14, 1953 [Dec. 8, 1952], No. 31026/52. Class 108 (2). A coupling unit for coupling trailer vehicles to towing vehicles comprises an assembly including an attachment element adapted to be secured to the towing vehicle and a coupling element formed or constructed to receive the leading end of the draw-bar of the trailer vehicle in a manner such as to enable a tractive pull to be applied thereto whilst permitting universal angular movement between the coupling unit and the draw-bar within the required range, and dolly wheel means carried by a mounting member pivotally connected with the assembly about a vertical or approximately vertical axis to permit the dolly means to castor when the coupling unit is in use and also displaceable upwardly and downwardly under the control of spring suspension means to enable the latter to bear at least part of the weight presented at the draw-bar of the trailer vehicle. In the arrangement shown, a coupling element formed by a sector-shaped plate 18 carrying a ball member 9, is provided with a pair of guide sleeves 20 united, at their upper ends by a plate 19, which are slidable on spaced vertical guide bars 14 extending between upper and lower projections 12, 13 of a bracket 11, adapted to be secured to a towing vehicle. A further sleeve 21 extends between and through the plates 18 and 19 and forms a guide for endwise movement against a main spring 29 and a check spring 30 of a stem 22 carrying a dolly wheel or wheels 24 mounted on a trailing arm 25. The arm 25 may be mounted to swivel about the stem 22, or may be rigidly fixed to the stem which is rotatable in the sleeve 21 as shown. Buffer springs may be provided at the upper and lower ends of the bars 14. The coupling element may be retained in a raised position by means of a rotatable spindle 33, Fig. 4, engaging at its lower end beneath the plate 19, and carrying at its upper end a spring-loaded plunger engageable with a hole in the projection 12. The bracket 11 may be formed with a pair of arcuate slots, Fig. 5 (not shown), by which the unit may be attached to the towing vehicle and by which the unit may be rotated to an out-ofuse position.
Patent GB-451273-A (GB)
Title: Improvements in connection with variable speed hydraulic power transmission
IPC: F16H39/08
Filed: 1934-10-30
Abstract: 451,273. Hydraulic transmission of power. BURDETT, H. C., 190, Piccadilly, London, MEACOCK, T., 16, Hillcrest Road, Southend-on-Sea, and MEACOCK, J. R., Westonia, Mannering Gardens, Westcliffon- Sea. Oct. 30, 1934, No. 31093. [Class 69 (ii)] Means for the hydraulic transmission of power comprises a variable-output pump unit 1 and a motor unit 3 arranged between driving and driven shafts 2, 4, and secured to a drum 5 ; brake arms 6, pivoted at 7 to a casing 8, are drawn together by adjustable springs 9 to hold the drum against rotation, and are freed when desired by a lever or pedal 14 acting through a rod 13 and toggles 12 and provided with a locking bolt 15. In another form, Fig. 6, the brake is freed at a given speed by centrifugal force acting through weighted crank levers 16, slidable collar 20, lever 22, and a rod 25 with a wedge end arranged between rollers on the brake arms 6.