baber/WOPTO huggingface dataset:
Patent GB-664921-A (GB)
Title: Improved process for the delustring of synthetic fibres
IPC: D06Q1/00
Filed: 1949-02-08
Abstract: Fabrics made of fibres of the polyester linear condensation product type, e.g. polyethylene terephthalate, are delustred by treatment with an aqueous solution of sodium or potassium hydroxide, preferably at an elevated temperature.  The aqueous solution may contain 29-50 per cent, particularly 30-40 per cent, by weight of sodium hydroxide and the temperature may be 10-85 DEG  C., particularly 15-65 DEG  C. For the purpose of obtaining patterned effects, there may be applied to selected areas of the fabric, before the alkali treatment, a paste or composition consisting of or containing substances which resist or prevent the delustring action of the strong alkali.  Dyestuffs having an affinity for the polyester fibre may be incorporated in the resist paste or composition in order to obtain lustrous coloured patterned effects on a delustred ground.  Examples of suitable resists are gum tragacanth and locust bean gum, starches, water-soluble cellulose derivatives such as methyl cellulose and carboxymethyl celluloses and partly condensed resins of the urea-aldehyde and alkyd types.  In an example a fabric made from polyethylene terephthalate filament yarn is printed with a paste containing 2 per cent by weight of 1 : 5-dimethylamino - 4 : 8 - dihydroxy - anthraquinone and thickened with 50 per cent of a 10 per cent aqueous solution of carboxymethyl-cellulose, dried and steamed for 40 minutes.  The material is then immersed in an aqueous solution containing 33 per cent by weight of sodium hydroxide at 50 DEG  C. for 25 minutes, the fabric being in open width.  It is then washed with water, soaped at the boil, rinsed and dried, when a lustrous blue patterned effect on a delustred white ground is obtained.  According to the first Provisional Specification strong organic bases such as tetramethylammonium hydroxide may be employed instead of sodium or potassium hydroxide.  According to the second Provisional Specification the materials which may be used as resists include seaweed extracts and waxes.
Patent GB-1096193-A (GB)
Title: Improvements in or relating to electric discharge tubes
Inventor: STARR ARTHUR TISSO
IPC: G09G1/20
Filed: 1964-01-27
Abstract: 1,096,193. Cathode-ray tubes. RANK ORGANISATION Ltd. Jan. 26, 1965 [Jan. 27, 1964], No. 3398/64. Heading H1D. A cathode-ray tube has a plurality of elemental beams arranged in a row, the row of beams being jointly deflected generally transversely of the row, wherein each beam may be selectively switched on or off at predetermined points of the deflection so as to produce an alphanumeric display on a screen. Alternatively the tube may be used as a radar display tube, an additional beam being used to display target echoes on the screen. A plurality of cathodes may be used to form the elemental beams, each being selectively switched on or off, or a plurality of beam modulating electrodes arranged in a row are provided, one cathode being used to flood the row.
Patent GB-932200-A (GB)
Title: Detent
IPC: F15B13/04
Filed: 1962-01-30
Abstract: 932,200. Linkwork. NEW YORK AIR BRAKE CO. Jan. 30, 1962 [May 3, 1961], No. 3424/62. Class 80 (3). [Also in Group XXV] A yielding detent for locating a rod 7 in one of four axial positions comprises a cylindrical housing 9 in which slidable collars 11, 12 are spring-urged towards each other and against a central snap ring 15 mounted in the housing 9, the collars 11, 12 having inclined surfaces 16, 17 which urge a row of detent balls 18 into engagement with one of four annular grooves 21 . . . 24 in a cylindrical member 19 attached to the rod 7.
Patent GB-244296-A (GB)
Title: Fire tongs or the like
IPC: F24B15/10
Filed: 1925-02-09
Abstract: 244,296. Ambler, A. Feb. 9, 1925. Tongs. - Spring - opened fire tongs or the like of the kind consisting of a pair of levers pivoted together are held in closed position by a spring catch carried by one lever and passing through a hole in the other lever. A spring A<2> secured to the handle B passes through a hole in the other handle and is furnished with a catch A<1>. The spring passes through a rectangular tube E secured to the handle which may serve as a suspending medium for the tongs and also acts as a stop for the spring. The tongs are opened by a spring D or by a compression spring operating between the handles.
Patent GB-1377522-A (GB)
Title: Charge coupled array
IPC: H01L21/339
Filed: 1972-01-05
Abstract: 1377522 Charge coupled devices RCA CORPORATION 5 Jan 1972 [6 April 1971] 03570/74 Divided out of 1377521 Heading H1K In a charge coupled array formed as a plurality of rows of notional elements in a common substrate each element is provided with a plurality of electrodes the potentials of which are controlled so that a row may be selectively read out by applying a certain number of power supply phases to shift the charges along the row but the contents of a row are stored in the elements if a lesser number of power supply phases are applied.  A self scanning image sensor, Figs. 1 and 2 comprises an N type Si substrate covered with an SiO 2  layer having thick and thin parallel strips the thin strips defining the charge transfer paths. Poly-Si electrodes 54, 46 extend transversely to the transfer paths and Al electrodes 58, 60 are arranged between and overlapping the edges of, the adjacent poly-Si electrodes. Alternate ones of the Al electrodes are connected to out of phase # 1  and # 2  supplies and the poly-Si electrodes are also similarly connected. In order to achieve isolation of the # 2  supplies between adjacent charge transfer paths alternate poly-Si electrodes 56 are individual to each path and are contacted by the Al track joining the Al electrodes 60 to which the # 2  supply is connected. The other poly-Si electrodes 54 are common to all the transfer paths but are contacted at each crossing point by the 91 conductors. The poly- Si electrodes 54, 46 are arranged closer to the Si substrate than are the Al electrodes 58, 60 so that asymmetrically shaped potential wells are generated by control potentials applied to the poly-Si electrode and the adjacent Al electrode to which it is connected This ensures that the charge is shifted in only one direction when the appropriate # 2  supply is enabled. In variations the Al electrodes are arranged nearer the substrate than are the poly-Si electrodes, Fig. 5 (not shown), or the Al poly-Si electrodes are spaced equal distances from the substrate and the control signals arranged so that the potentials applied to the adjacent same phase electrodes are offset by a fixed amount to produce the required well asymmetry. Alternative embodiments using sets of three electrodes one electrode of each set being supplied with a constant bias and the other two electrodes being connected to out of phase pulsed supplies are described in the parent Specification 1,377,521.
Patent GB-683965-A (GB)
Title: Apparatus for bending circular sections
IPC: B21D7/024
Filed: 1950-02-13
Abstract: 683,965. Angular bending; twisting. BARR THOMSON & CO., Ltd., and MANSON, W. Feb. 8, 1951 [Feb. 13, 1950], No. 3571/50. Class 83 (iv). In a process of bending, a tube &c. is simultaneously twisted through an angle equal to the angle of bend to permit each longitudinal of the metal to retain its original length. The tube 11 is secured by a clamp 12 to a stationary member 1 and by a clamp 13 to a grooved former 8 co-operating with a former 7. Each former engages a bevel 4 gearing with a bevel 2 on the member 1. When a turntable 6 carrying the bevel gears 4 and the formers is rotated, the formers rotate about their axes to effect the bend and rotate about the tube axis to effect the twist.
Patent GB-1166223-A (GB)
Title: Process for the Preparation of a Copolymer Derived from Vinyl Nitrile Monomer having Resistance to Coloration
IPC: C08F2/18
Filed: 1968-01-23
Abstract: 1,166,223. Vinyl nitrile polymerization. TOYO RAYON K.K. 23 Jan., 1968 [23 Jan., 1967], No. 3591/68, Heading C3P. The process for preparing by aqueous dispersion polymerization a vinyl copolymer containing at the most 40% of a vinyl monomer of formula wherein R is hydrogen or a methyl group is characterized in that 0À01-5 parts by weight of a higher saturated aliphatic alcohol, C n H 2n+1  OH (wherein n is an integer of 12-18) is added per 100 parts of monomer. Preferably the copolymer comprises not more than 40% of a cyanated vinyl monomer (see above formula) and not less than 60% of either (wherein R and R<SP>1</SP> are hydrogen or a methyl group) or (wherein R 1  is hydrogen or a methyl group and R 2  is an alkyl group of 1-4 carbon atoms). Preferred monomers are acrylonitrile, styrene and methyl methacrylate. In the examples, (1) styrene and acrylonitrile and/or methacrylonitrile are copolymerized using azobisisobutyronitrile, n-dodecyl mercaptan and barium sulphate, and in the presence of cetyl alcohol and optionally also with stearyl alcohol, (2) styrene and acrylonitrile are copolymerized using lauroyl peroxide, n-dodecyl mercaptan and polyvinyl alcohol, and in the presence of lauryl alcohol, myristyl alcohol or cetyl alcohol, (3) as (2) except that the free radical forming component is a mixture of azobisisobutyronitrile and 2,2<SP>1</SP> - azobis - (2,4 - dimethylvaleronitrile); and (4) styrene, acrylonitrile and methyl methacrylate are copolymerized using azobisisobutyronitrile, n-dodecyl mercaptan and barium sulphate, in the presence of cetyl alcohol. Bead polymer is obtained which is compression moulded into sheets. The products are resistant to coloration.
Patent GB-764368-A (GB)
Title: Improvements in box-making machines
IPC: B31B50/62
Filed: 1955-02-07
Abstract: 764,368. Making boxes. JAGENBERGWERKE AKT:-GES. Feb. 7, 1955 [March 8, 1954], No. 3595/55. Class 18. In a machine for folding box blanks 1 to tubular form, the lower conveyer belt 4 is interrupted to enable a folding sweep 17 to project beneath the conveying plane. The blanks are each carried past a glue wheel 11 and sweep 12 by belts 4, 8, 9, the sweep 12 folding part of the blank on to the remainder. The belt 4 passes round rollers 13-15, and the sweep 17, projecting into the gap so formed, folds a further part of the blank into the remainder, the folded parts overlapping along the glued seam. The roller 14 may be adjusted to alter the belt tension and lateral position.
Patent GB-703612-A (GB)
Title: Improvements in or relating to spraying equipment for application to aircraft
IPC: B64D1/16
Filed: 1950-02-13
Abstract: 703,612. Crop sprayers. ANDREWS, P. C. June 12, 1951 [Feb. 13, 1950], No. 3612/50. Class 69 (3) Aircraft spraying apparatus includes a pump driven by a windmill and supplying liquid to a spraying device, the windmill being retractable from an in-use position in the air stream to an out-of-use position within the aircraft frame, or vice-versa, as required. A windmill 10, Fig. 1, is mounted at the base of a column 11 which is rotatable about an axis in line with a pump 12, the rotation of the column being effected by a handwheel 13. The pump is driven through gearing, and liquid is drawn from a storage tank 14 through a suction line 15, filter 16, lines 17, 18, 19, and a control valve 20 to centre bars 21 which deliver it to spray bars 72, Fig. 7, and rearwardly directed nozzles 76. The control valve 20 is operated by a cable 66 and a pivoted lever, not shown, and, to prevent liquid surging from one side of the aircraft to the other, a cylinder 70 fed from the said valve, has a central dividing plate. A valve assembly 22 prevents the tank being completely emptied, and comprises a valve 42, Fig. 4, on a rod 47 movable between seatings 43, 44 thus communicating alternatively between lines 41 and 45 and the suction line 15 via an outlet 46. A valve 50 on the same rod may engage a seating 51 to cut off communication between lines 17 and 18 via an inlet 52. When spraying is taking place the valve 50 is lifted from the seating 51 and the valve 42 is on the seating 44, and liquid is drawn through the line 41, the end of which terminates a predetermined distance from the tank base. When the liquid reaches this level the valves drop to their lower seatings, and liquid is drawn through the line 45 which reaches lower into the tank, and the liquid passes through lines 15, 17, inlet 52, outlet 56, a relief valve 57 and a line 58 back to the tank. Specification 703,642 is referred to.
Patent GB-1063192-A (GB)
Title: Circular weaving looms
IPC: D03D37/00
Filed: 1965-01-27
Abstract: To ensure equal tension in all threads coming from a number of beams in a circular loom the threads are passed around a rod (14) which is so shaped that all thread paths are the same length.  The rod (14) may have helical guides (19) upon it to guide the threads.
Patent GB-191635-A (GB)
Title: Improvements relating to agricultural rakes
IPC: A01D76/00
Filed: 1922-02-08
Abstract: 191,635. Hõcker, F., and Deutsche Werke, Akt.-Ges. Feb. 8, 1922. No Patent granted (Sealing fee not paid). Rakes, horse. - Self-acting lifting-mechanism for a horse-rake comprises a strut or leg 6 slidably mounted on a pivot 7 and normally engaging a cup 10 connected with the tine-carrier 4 but adapted to escape from the cup after having fully lifted the rake, and to be pulled upright out of the ground by a spring 11 and then turned horizontal by the weight of the falling tines 3. The strut is provided with a toe 9 which digs into the ground when the strut is lowered from its inoperative position. The pressure of the strut on the cup 10 turns the tine carrier 4 about the axletree 2. The strut finally slips off the cup and is pulled upwards endwise by the spring 11, so as to allow the rake to fall again. As the carrier 4 swings downwards it turns the strut into the horizontal position where it is held until again released by means of a spring-controlled foot-lever 13 pushing against a pin 14. In a modification, the strut is provided with a knee-joint controlled by the spring 11, so that the lower part may yield when in the upright position.
Patent GB-224196-A (GB)
Title: Improved manufacture of emulsions of asphalt or the like
IPC: C08L95/00
Filed: 1924-02-13
Abstract: 224,196. Naamlooze Vennootschap de Bataafsche Petroleum Maatschappij- Oct. 30, 1923, [Convention date]. Emulsions, making-Emulsions of natural asphalt, bitumen, artificial asphalts, pitch and the like are prepared by mixing the asphalt &c. preferably molten, with the products obtained by air oxidation of solid paraffins at high temperature and with hydroxides or carbonates of alkalis, ammonium, or earth alkalis. In an example bitumen is melted, mixed with the oxidation product of paraffin of melting point 54‹ C., and the whole stirred into hot caustic soda solution. The process may be conducted under pressure and protective colloids mav be added before, during or after emulsification. The Specification as open to inspection under Sect. 91 (3) (a) describes also the use as emulsifying agents of the oxidation products of hydrocarbons in general and particularly of earth oil distillates. This subject-matter does not appear in the Specification as accepted.
Patent GB-705068-A (GB)
Title: Water treatment proportioning device
Inventor: RUSHTON ISAAC JAMES
IPC: C02F1/68
Filed: 1951-02-16
Abstract: 705,068. Purifying water. IMPERIAL CHEMICAL INDUSTRIES, Ltd. Feb. 11, 1952 [Feb. 16, 1951], No. 3804/51. Class 46. [Also in Groups II, XXVIII and XXXI] A device for feeding water-treatment chemicals to a reservoir such as a locomotive tender 1 substantially in the same proportion as the feed of the water to the tender comprises a stock tank 6, containing a solution of the chemicals maintained at constant level by a ball float valve 8, an overflow feed 7 and an annular displacement float 5 connected to a plate 3 also connected to a bellows 2 secured to the bottom of the tender 1. Filling of the tender with water causes pressure on the plate 3 with consequent escape of air from the bellows 2 up the connection 4, acting as a vent-pipe, and lowering of the float 5, whereby treatment solution passes into the tender during filling. When the tender is being emptied of water the plate 3 and float 5 rise, and more treatment solution enters the constant level tank 6 through the ball-valve 8 from a main supply tank (not shown). The tank is fixed to the top 9 of the tender.
Patent GB-633946-A (GB)
Title: Improvements in the casting of metals and alloys
IPC: B22D23/00
Filed: 1947-02-10
Abstract: 633,946. Casting-machines; pouring-apparatus. HOCKING, L. N. Feb. 10, 1947, No. 3838. [Class 83 (i)] In casting turbine blades or other articles by clamping a mould or die 3 to the open end 4 of a pot 1 containing molten metal and then inverting the assemblage as shown, a coal gas or other reducing flame is kept burning over the surface of the metal in the pot during melting. The flame may issue from a burner 10 in the wall of the pot opposite the part down which the metal runs during pouring. The gas pressure may be increased on invertion to assist flow of metal. The mould may be of dense refractory material, e.g. silica bonded with ethyl silicate. The pot may be mounted on trunnions 8 and be surrounded by a highfrequency furnace 2.
Patent GB-1396269-A (GB)
Title: N-mono alkoxymethyl phenobarbitals process therefor and  therapeutic composition and method containing same
IPC: A61K31/515
Filed: 1974-01-29
Abstract: 1396269 Phenobarbital derivatives KENDALL CO 29 Jan 1974 [28 Feb 1973] 4129/74 Heading C2C Novel compounds of Formula I in which R is C 1-4  alkyl, are prepared by reacting a di-alkali metal salt of 2-thiophenobarbital with a C 1-4  alkyl chloromethyl ether in the presence of an inert solvent, and then oxidizing the N,S-bis-(alkoxymethyl)-2-thiophenobarbital so obtained. Anticonvulsant compositions for oral or parenteral administration, comprise a compound I together with a physiologically acceptable carrier.
Patent GB-1527215-A (GB)
Title: Process for producing glucose isomerase
IPC: C12N9/92
Filed: 1977-02-02
Abstract: 1527215 Isomerising glucose NIPPON OIL CO Ltd 2 Feb 1977 [3 Feb 1976] 4223/77 Heading C25 [Also in Division C3] Fructose is made by contacting glucose in an aqueous medium with glucose isomerase-containing cells of a bacterium of the genus Corynebacterium, e.g. at 50-80C. and at pH 6-10. Examples test the quality of glucose isomerase by its fructose producing ability.
Patent GB-840327-A (GB)
Title: Polymerisation catalysts
Inventor: MULLEY RICHARD DEREK
IPC: G01C21/18
Filed: 1957-02-07
Abstract: Ethylene is polymerized by contact with a catalyst prepared by treating a rare earth compound with a hydride, alkyl hydride, alkyl, cycloalkyl, aryl, or aralkyl of aluminium or a complex of such a compound.  The ratio of the rare earth compound to the aluminium compound may be between 10:1 and 1:10.  The catalyst may be prepared by ball-milling the rare earth compound with a solution of the aluminium compound in a hydrocarbon solvent, Ethylene is polymerized by contacting it with the catalyst in a hydrocarbon solvent at a superatmospheric pressure.  In examples, ethylene is polymerized using catalysts prepared from lanthanum trichloride, ceric oxide, cerous chloride, samarium trichloride, gadolinium chloride, neodymium trichloride and praseodymium trichloride, and aluminium triethyl, aluminium tri-isobutyl, and lithium aluminium hydride. Specifications 776,326 and 810,268 are referred to.ALSO:A polymerization catalyst is prepared by treating a rare earth compound with a hydride, alkyl hydride, alkyl, cycloalkyl, aryl, or aralkyl of aluminium or a complex of such a compound.  The ratio of the rare earth compound to the aluminium compound may be between 10 : 1 and 1 : 10.  The catalyst may be prepared by ball-milling the rare earth compound with a solution of the aluminium compound in a hydrocarbon solvent.  In examples ethylene is polymerized using catalysts prepared from lanthanum trichloride, ceric oxide, cerous chloride, samarium trichloride, gadolinium chloride, neodymium trichloride and praseodymmium trichloride, and aluminium triethyl, aluminium tri-isobutyl, and lithium aluminium hydride.  Specifications 776,326 and 810,268 are referred to.
Patent GB-879372-A (GB)
Title: A tyre repair device
Inventor: FROMBERG AARON JACOB
IPC: B29C73/08
Filed: 1958-02-10
Abstract: 879,372. Plugging tubeless tyres. FROMBERG Inc. Feb. 10, 1958, No. 4258/58. Class 144 (1). Tubeless tyre punctures are plugged by a cylindrical rubber or like plug 10 having a metal stiffening sheath 12 and a conical end 11 projecting from one end of the sheath, the plug being inserted conical end first into the puncture 14 from outside the tyre and the sheath 12 being subsequently extracted to leave the plug in the puncture 14 by an extractor means which engages formations on the other end of the sheath and includes a stop means to hold the plug 10 in position. As shown, the extractor comprises a screw 16 operable to slide a traveller 20 along spaced guide rods 17, 18, the traveller comprising spaced flanges 23, 24, the lower, 24, of which is slotted at 25 to embrace the plug sheath 12 and carries angle-pieces 26, 27 to define with the flange 24 recesses disposed one on each side of the slot 25. These recesses receive a collar formation 13 on the sheath 12 for extraction of the sheath on raising of the traveller. The guide rods 17, 18 have a crosshead 19 from which depends a plunger 21 extending through the traveller flange 23 to terminate in a concave end 22 aligned with the slot 25. This concave plunger end bears on the end of the rubber plug to hold it against retraction with the sheath 12. In an alternative arrangement, the collar 13 may be duplicated, Fig. 7, or replaced by slots 44, Fig. 5, to engage directly with the side edges of the slot 25. The plug 10 is dimensioned to require stretching for application of the sheath thereon to ensure grip with the sheath, and to ensure radial expansion to seal the puncture on retraction of the sheath.
Patent GB-138442-A (GB)
Title: Improvements relating to machine tools for slotting, shaping and the like
IPC: B23D13/00
Filed: 1919-02-21
Abstract: 138,442. Twigg, A. C. Feb. 21, 1919. Shaping; slotting.-A relief-action tool-holder has an abutment on the tool-slide against which the upper end of the tool bears during the cutting. The tool 1 is fixed in a holder 2 pivoted on trunnions 3 in slides 4 on the frame, these slides having springs 7 tending to raise them. During the non-cutting stroke, the springs 7 are compressed by the drag on the tool, allowing the upper end of the tool to be released from a fixed bearing-plate 9, and permitting relief of the tool by compression of a spring 10. In another form, the tool is carried at one end of a lever pivoted to the slide, while, in another form, Fig. 6, the tool-holder 2 is mounted on parallel levers 11.