baber/WOPTO huggingface dataset:
Patent GB-868500-A (GB)
Title: Improvements in or relating to the coating of fabrics
IPC: D06N3/06
Filed: 1958-04-02
Abstract: A coating composition comprises between 5% and 30% by weight of an organic isocyanate; between 50% and 70% by weight of a partially condensed polyester; between 5% and 40% by weight of a vinyl terpolymer; 0,2% by weight of a plasticising polyester; and between 0 and 5% by weight of a catalyst.  The organic isocyanate is a di- or tri-isocyanate substituted aromatic or alkyl-arylmaterial e.g. 2 : 4-diisocyanato toluene or the product formed by the condensation of an isocyanate group of aryl isocyanates with a polyol so as to result in a product with free isocyanate groups, e.g. the reaction product of one molecule of hexane triol with 3 molecules of 2 : 4-diisocyanato toluene. "Partially condensed polyester" denotes the product of condensation of an organic isocyanate as defined above with a hydroxy polyester formed from a glycol HO (CH2CH2O)nH or CH3CHOH(CHR,CHOH)n-CH3 where n is a whole number between 1 and 6 and R is an alkoxy group, -CH2OH or -CH2 CH2OH, and a dicarboxylic acid of the formula HOOC(CH2)n-COOH where n is a whole number, such condensation product containing between 1% and 2% by weight of free OH groups.  The term "vinyl terpolymer" denotes the product formed by the copolymerization of vinyl chloride (80-90% by weight), vinyl acetate (19,7 to 7% by weight) and a , b -unsaturated acid of the formula HOOC,(CH2)nCH=CH,COOH where n is a whole number between 0 and 3 (0,3 to 3% by weight).  A typical terpolymer is "Vinylite" VMCH (Registered Trade Mark).  "Plasticising polyester" denotes the product formed by the polymerization-condensation of a dicarboxylic acid of the formula HOOC(CH2)n COOH where n is a whole number between 2 and 10 and a glycol of the formula HO(CH2 CH2O)nH or CH3CHOH(CHR,CHOH)nCH3 where n is a whole number between 1 and 6 such that the product is of the formula HOCH2 (OCOOR)nCH2OH with a molecular weight of approximately 4000 and contains between 1% and 2% of free hydroxyl groups; or the reaction product is modified by addition of an acid R1COOH where R1 is an alkyl group containing 7 to 17 carbon atoms or where R1 is an aryl group, so that the product has the formula HOCH2(OCOOR)nCH2OOCR1.  A typical plasticizing polyester is obtained from the polymerization of propylene glycol and adipic acid stopped with lauric acid. "Catalyst" denotes a tertiary amine, e.g. N-methyl morpholine or a metallic naphthenate, e.g. cobalt naphththenate.  The compositions are used to coat polyester or polyamide fabrics. Additional specified ingredients are pigments, e.g. colloidal silica, carbon black, or basic lead sulphate with citric acid; ethyl acetate; non-oxidizing alkyd resin.  The coated fabric may be given a topcoating of terpolymer, polypropylene laurate, ethyl acetate and optionally pigment.
Patent GB-268155-A (GB)
Title: Improvements in the development of photographic plates, films, and the like
IPC: G03C5/30
Filed: 1926-04-22
Abstract: 268,155. Silver Springs Bleaching & Dyeing Co., Ltd., and Hall, A. J. April 22, 1926. Developing. - 2: 4-diaminodiphenylamine is used alone, or in conjunction with known agents such as metol, hydroquinone, or amidol, as the active agent in a photographic developer. A developer for gaslight papers is described containing 2 : 4-diaminodiphenylamine, amidol, sodium sulphite, and potassium bromide; or, alternatively, 2 : 4-diaminodiphenylamine and sodium carbonate. The second alternative may, with modification of the proportions, 'be used for plates and films.
Patent GB-799498-A (GB)
Title: Improvements in or relating to a method of polishing a cutting edge of a diamond for a cutting tool
IPC: B24B9/16
Filed: 1955-09-02
Abstract: 799,498. Grinding. MORAN, H. FERNANDEZ-. Sept. 2, 1955 [Sept. 4, 1954], No. 10682/57. Divided out of 799,497. Class 60. The cutting edge of a diamond is polished on a rotating disc using a paste containing diamond powder of grain size between 0À002 and 0À005 microns and a sufficient linear grinding speed to produce a burning-off rather than a grinding effect. Preferably, the diamond to be polished has a laminar structure and is polished in a direction parallel to the planes of cleavage and the cutting edge. The diamond powder may be obtained by centrifuging and ultra-centrifuging an oil suspension of fine diamond powder. The polishing disc 48 may be rotated at 10,000 to 40,000 revolutions per minute. As shown, it is keyed to shaft 49, the pointed lower end of which rests on an axially movable plate 50 of polished hard metal carborundum or diamond. Shaft 49 is mounted in V-shaped bearing 51 of bronze or diamond. Handle 65 lifts and traverses the diamond 57 through link 67 and column 61 pivoted in sleeve 62.
Patent GB-583949-A (GB)
Title: Improved press tools for the cutting of articles out of sheet metal or plywood
IPC: B21D28/14
Filed: 1944-06-02
Abstract: 583,949. Cutting-out presses. WARBURTON, C. L., SMITH, W. F., WILSHAW, F. H., METROPOLITAN-VICKERS ELECTRICAL CO., Ltd., and CROSLAND, Ltd., W. June 2, 1944, No. 10686. [Class 31 (i)] [Also in Group XXII] Upper and lower dies for punching out blanks from sheet metal or plywood, each comprises a base of hardened plywood of specific gravity greater than unity having a slot into which is forced a steel rule or strip so that the rule in the lower die will pass into the rule in the upper die with a small clearance, the part of the base of the lower die which bounds the rule being reduced in thickness whilst the part of the base of the upper die which is bounded by the rule is correspondingly reduced in thickness. The base members are preferably of "hard" plywood bonded with a synthetic resin and having a specific gravity of the order of 1.4. The base 1 has a slot sawn in it and into the slot is inserted a length of steel rule or strip 3 having a square shearing edge. That part of the base surrounding the rule is reduced in thickness and a rubber pad 9 is placed around the rule to act as an ejector. Similarly the base 2 of the co-operating die is slotted for the insertion of a steel rule 4,. the part of the base within the rule being reduced in thickness and a rubber ejector pad 10 being inserted. If the blank is required to be holed, a punch 5 is incorporated in the base of the upper die to co-operate with a flanged steel ferrule 6 in the base of the lower die. The bases may have guide bushes 7 adapted to receive pins to ensure the correct registering of the dies in a press and countersunk holes 8 to enable them to be screwed to the bed plae of the press. Instead of having the rubber pads 9 and 10 the bases may be bored to receive springs. Specification 579,523 is referred to.
Patent GB-117684-A (GB)
Title: Improvements in Internal Combustion Engines specially applicable for Aero Engines.
Inventor: WILLIAMS ALLEN HEATHCOTE
IPC: F02B75/22
Filed: 1917-07-27
Abstract: 117,684. Williams, A. H. July 27, 1917. Compression engines; driving-gear. - Cylinders 1, 2 are arranged in polygonal formation around a central driving-shaft 9 and contain double - acting pistons which are acted upon in pairs by explosions occurring in chambers located at the angles of the polygon. Fig. 1 shows a four-strokecycle engine in which the pistons of alternate cylinders a are connected to oscillating arms 8 one of which is connected to a crankshaft 5 by a rod 14. the shaft carrying a pinion 16 which gears with a wheel 17 on the main shaft. The pistons of the cylinders b are similarly connected through arms 19 and a rod 21 to a crank-shaft 6 carrying a pinion which gears with the wheel 17. Each set of arms 8, 19 is braced together by rods 10, 20 respectively. Inlet and exhaust valves, actuated from the main shaft through two-to-one gearing, are mounted in the combustion chambers 3 which are each common to two pistons. Slots 23, through which the gudgeons pass, may be uncovered by the pistons and thus serve as exhaust ports. The engine may comprise one or more cylinder units.
Patent GB-881423-A (GB)
Title: Improvements in disc brakes
Inventor: BUTLER HENRY JAMES
IPC: F16D65/095
Filed: 1957-04-03
Abstract: 881,423. Disc brakes. DUNLOP RUBBER CO. Ltd. March 27, 1958 [April 3, 1957], No. 10894/57. Classes 103 (1) and 103 (1). A disc brake comprises a rotatable disc 3, a non-rotatable slotted base member 1 completely encircling the disc or a chord thereof, friction pads 21 associated with the base member and located on opposite sides of the slot in the base member, and brakeapplying mechanism for applying the pads against the disc. The embodiment shown in Figs. 1 and 3 discloses a rotatable disc 3, a non-rotatable caliper type housing straddling the periphery of the brake disc 3 and having pads of frictional material 21 associated therewith, fluid pressureoperated piston and cylinder mechanisms 23 being operable to force the friction pads into frictional engagement with opposite sides of the disc and a base-plate 1 completely encircling the disc on a chord thereof, the radially inner ends of the limbs 26 of the housing being rigidly secured to said base-plate 1 on opposite sides of the disc, and the housing being fabricated from steel pressings. As shown, particularly in Figs. 1 and 3, the friction pads 21 are of rectangular form secured in place by retainer pins 61 passed through coaxial holes 60 and 70 in the limbs 69 and ears 59 and the parts 32 of the base-plate 1. The brake assembly includes a hand-operated mechanism comprising a caliper through which pads 22 are pressed against the side of the disc by operation of the pivoted bifurcated lever 51, 52 through rod 24b and lever 24a. Automatic adjustment mechanism may be incorporated with the piston and cylinder mechanisms. Specification 688,382 is referred to.
Patent GB-115547-A (GB)
Title: Improvements relating to the Scutching of Flax and like Fibres.
Inventor: WILLIAMSON JAMES ALEXANDER
IPC: D01B1/28
Filed: 1917-07-30
Abstract: 115,547. Williamson, J. A. July 30, 1917. Breaking and scutching apparatus; holders for flax &c.-In an apparatus for scutching flax &c., the material in bundles is carried by a revolving stock of cylindrical or polygonal shape moving continuously or intermittingly, and at a uniform or variable speed, which can be adjusted to suit the material being treated. The stock comprises two concentric cylinders b, c, Fig. 1, with registering notches d in their upper edges in which the bundles of flax are laid. Clamping- bars f are situated between the cylinders and raised by a cam g to free the flax to be reversed or withdrawn. The flax is secured also by holders h, Fig. 6, comprising jaws h, h<1>, the latter of which is withdrawn to allow the flax to be inserted, against the action of a weight n by a fixed cam o engaging a projection h<2> on the spindle h<2> of the jaw. The rotation of the stock carries the flax past the beater arms k which treat one side of the bundle. After passing the arms k, the clamping-bars f are raised by a cam l, and the bundle turned over to expose the other side of the bundle to the action of a second set of beaters. This turning is accomplished by the rotation of the holder h by racks r, r<1> which engage a toothed wheel q on the hollow spindle h<5> of the holder. The racks are depressed by cams s, s<1> on the plate p. The second set of beaters may beat the flax upwardly against a fixed stock, in which case the holders may be dispensed with. Additional beaters may work across the face of the stock.
Patent GB-258196-A (GB)
Title: Improvements in or relating to suction sweepers
IPC: A47L9/04
Filed: 1926-04-26
Abstract: 258,196. Hoover, Ltd., (Assignees of Smellie, D. G., White, H. B., and Nulsen, M. E.). Jan. 12, 1926, [Convention date]. Carpet-sweepers.-A rotor for use in a vacuum cleaner is formed with elongated rigid projections on its cylindrical surface. Fig. 1 shows a rotor with a helical rigid projection 29 covering half the diameter of the cylinder and joined at its ends to a second (unseen) similar projection. Between the two, brushes 22 are inserted in grooves in the cylinder body. Segmental rings 30 limit the rise of the carpet under suction. Air enters through holes 32 in caps 31 provided at the ends of the rotor, which is hollow, and prevents lodgment of dust. A pawn 43, Fig. 8, carried in the rotor engages a ratchet wheel 44 in the shaft, and prevents rotation in the wrong direction.
Patent GB-864304-A (GB)
Title: A magnetic core delay circuit for use in digital computers
Inventor: BUNT JOHN PERCIVAL
IPC: G11C19/04
Filed: 1956-04-10
Abstract: 864,304. Storage circuits. ELLIOTT BROS. (LONDON) Ltd. April 9, 1957 [April 10, 1956], No. 10957/56. Class 40 (9). All the saturable cores of a shift register are read out at the same time, a transistor being connected between an output winding on one core and an input winding on the next core which is switched by the persistence of carrier storage current in the transistor. As shown in Fig. 5, if a core A registers a digit when read-out winding 3 is energized, the voltage induced in output winding 1 causes transistor 6 to conduct and energizes feed-back winding 4 in series with input winding 5 on the next core B. Reaction between windings 1 and 4 drives core A to saturation. At saturation coupling between windings 1 and 4 ceases but transistor 6 continues to provide current in its collector circuit by virtue of carrier storage and consequently switches core B at a time when core B is not subjected to read-out. The feed-back winding 4 may be omitted provided read-out current is sufficient to switch the core and ceases before storage current in the collector circuit which connects directly with the input winding 5. The output of a core may be multiplied by using a number of transistors in parallel with common emitter and base connections and separate collector circuits.
Patent GB-370194-A (GB)
Title: Improvement relating to multi-stage expansion steam engines
IPC: F01B17/04
Filed: 1931-04-14
Abstract: 370,194. Steam engines. AKTIEBOLAGET LINDHOLMEN-MOTALA, Hisingen, Gothenburg, Sweden. April 14, 1931, No. 10980. Convention date, Dec. 22, 1930. [Class 122 (iii).] Multiple-expansion engines.-Between the expansion stages 1, 2, 3 are arranged one or more steam separators 8, 10 for relieving the steam of moisture before it enters the following stages. An oil-separating device 12 is connected to the separators. The oil is returned by a pump 13 through a filter 15 to the lubricating system. Steam superheaters 16 may also be arranged in the branches between the stages.
Patent GB-115749-A (GB)
Title: Improvements relating to Colliery Trams.
Inventor: JONES DAVID JOHN
IPC: B61D11/02
Filed: 1917-07-31
Abstract: 115,749. Jones, D. J., and Bollard, T. J. July 31, 1917. Corves; sides. - The height of the body of a colliery tram is adjusted by means of vertically sliding plates a which fit completely around the inside of the sides and ends and have a pin-and-slot connexion d with the body. As shown, two plates a are employed having their meeting edges c interfolded at the centre of the ends of the tram, the two plates being independently adjustable.
Patent GB-569354-A (GB)
Title: Improvements in variable speed gear
IPC: F16H57/04
Filed: 1943-07-07
Abstract: 569,354. Variable-speed gearing. GUY MOTORS, Ltd. ANDREWS, A., GILBERT; W. H. and REECE, J. E. July 7,1943, Nos 11003 and 11006. [Class 80 (ii)] In a variable-speed gear-box of the countershaft type, the end of the driving shaft 2 and the adjacent end of the countershaft 4 are both supported by bearings 7, 8 arranged at each side and in close proximity tc the constant mesh gears 5, 6 driving the countershaft. As shown, the gear pair 5, 6 and the bearings 7, 8 are carried in a casing 9 which is bolted to the end of the gear-box 10. The driven shaft 3 carries gears 24, 24a, 24b freely mounted thereon and which are in constant mesh with gears fixed to the countershaft. The gears 24, 24a, 24b are adapted to be coupled to the driven shaft by clutches operating on the synchromesh principle. Bearings between the gear pairs are omitted. Between the gear 6 and the counter shaft bearing 8 is arranged an oil pump which delivers oil through ducts 19, 21, 22 to the gears on the driven shaft 3. Specification 569,356 is referred to.
Patent GB-213780-A (GB)
Title: An improved chain rivet extractor & inserter
IPC: B25B27/22
Filed: 1923-04-24
Abstract: 213,780. Hirons, T. H., Hirons, T. H., Hirons, F. J., and Hirons, H. J. April 24, 1923. No Patent granted (Sealing fee not paid). Rivet extractors; inserting rivets.-Housed in a slot b in the body a of the device is a disc f pivoted on a bolt e and provided with a series of slots of different dimensions adapted to receive chains of various sizes and bring them into alignment with upper and lower screwed members c, d which are situated on opposite sides of the disc and are adapted to force out or insert a rivet.
Patent GB-627898-A (GB)
Title: Improvements in sterilisers
IPC: A61L2/06
Filed: 1947-04-25
Abstract: 627,898. Sterilizers. SANKEY & SONS, Ltd., J., HELDEN, W. VAN., and BRITTON, A. B. April 25, 1947, No. 11078. '[Class 81(i)] A sterilizer, being of the internal lid type wherein the steam pressure assists the seating of the lid, has the top wall of oblong form, having an oblong aperture B nearer to one end of the top wall than the other, and arranged with its major axis at right angles to that of the top wall. The aperture B is closed by a close-fitting internal lid C which is secured by a clamping bar D in the known manner. Space is thus provided on the top wall at E for the fitment of a thermostat gas control F, pressure gauge G, thermometer H, safety valve J and air release valve K.
Patent GB-1176740-A (GB)
Title: A Method of and a Shaft Furnace for Making Spongy Metal.
Inventor: KONONOV MIKHAIL IVANOVICH
IPC: C21B13/04
Filed: 1968-03-07
Abstract: 1,176,740. Making spongy metal. TSENTRALNY NAUCHNO-ISSLEDOVATELSKY INSTITUT CHERNOI METALLURGII IMENI I. P. BARDINA. March 7, 1968, No. 11100/68. Heading C7D. [Also in Division F4] Spongy metal e. g. iron is made by reduction, e.g. at a temperature above 1000‹ C. , in an externally heated shaft furnace wherein the metal oxides B and a solid reducing agent A, e. g. soot charcoal or petroleum coke, move in immiscible flow streams with the flow stream of the metal oxides inside that of the reducing agent. As shown, the furnace comprises a reducing chamber 3 connected by gas ducts 10 to heating channels 9 with a charging arrangement 2 above composed of at least two coaxially disposed funnels, the external funnel (11) being for charging the reducing agent A while the internal (or central) funnel (12) is for charging the metal oxides B. A cooler 4 preferably adjoins the bottom of the furnace. Below is mounted a receiving table 15, having as opening for the passage of sintered spongy metal C, and rotatable blade drums 16 for discharging spent reducing agent from the table. The spongy metal C emerging may be cleaned by rotary metal brushes 6, compacted by rolls 7 and cut up into pieces by shears 8.
Patent GB-459934-A (GB)
Title: Improvements in and relating to nitrocellulose compositions
IPC: C08K5/12
Filed: 1935-04-10
Abstract: A cellulose nitrate composition contains glyceryl alkyl phthalate, e.g. glyceryl butyl phthalate, with or without varnish gums, pigments, or volatile solvent mixtures.  The composition may be a plastic mass, film, or spray or brush lacquer.
Patent GB-599442-A (GB)
Title: An improved manufacture of hydrocarbon copolymers
IPC: C08F210/12
Filed: 1945-05-02
Abstract: Solid copolymers are obtained by copolymerizing a major proportion by weight of an aliphatic C4 to C7 isoolefine with a minor proportion of a C6 to C8 diolefine of formula CH2=CR.CnH2n-1, where R is alkyl and n is an integer, below 0 DEG  C. and in the presence of a Friedel-Crafts catalyst dissolved in an inert solvent, liquid at the polymerization temperature.  Isobutylene is the preferred isoolefine, but 3-methyl butene-1 and 4-methyl pentene-1 are also specified. Preferred diolefines are 2-methyl hexadiene-1.5, 2-methyl heptadiene-1.6, 2-methyl heptadiene-1.4 and 2-methyl pentadiene-1.4. Alkyl halides and carbon disulphide are suitable solvents.  The copolymers may be cured with sulphur with, if desired, the addition of vulcanization aids, plasticisers and fillers.  Specification 560,924 is referred to.
Patent GB-629560-A (GB)
Title: Dispensing container for snuff and the like fluent material
IPC: B05B11/06
Filed: 1947-04-25
Abstract: 629,560. Powder distributers. JACK, R. April 25, 1947, No. 11142. [Class 18] A dispensing container for snuff and like fluent material comprises a container a slidably mounted in a casing c and movable inwardly against spring action to bring an aperture h in the container a into alignment with a discharge opening k in the casing. As shown a spring e is confined between the casing cap d and an end plug g of the receptacle, the opposite end of the receptacle being closed by a screw cap b. A ball o working in slots m, n prevents relative rotation of the members a, c.
Patent GB-826476-A (GB)
Title: Improvements in apparatus for the vibrational treatment of material of a nature ranging from granular to pulverulent
IPC: B01J19/10
Filed: 1956-04-12
Abstract: 826,476. Vibratory mechanism. UHDE G.m.b.H., F., and BEHRENS, H. April 12, 1956 [April 23, 1955], No. 11164/56. Class 80 (4). [Also in Group II] A carrier 1 of a vibrating device for material ranging from granular to pulverulent comprises a circular, spiral, helical or like trough or tube and is subjected to a circular translatory motion about a vertical axis and a tumbling motion transverse to the plane of the first motion. This is achieved by supporting a frame 2 carrying the carrier 1 on flexible inclined members 3, 4, 5, 6 which resolve the out-ofbalance force from a rotating unbalanced mass 10 into two components at right angles. The material is simultaneously conveyed along the trough or tube and given a rolling motion. In another arrangement the trough or tube is resiliently mounted and the two component forces derived from two rotating unbalanced masses which are axially spaced and 90 degrees out of phase.
Patent GB-1106154-A (GB)
Title: Speed control mechanism
Inventor: SMITH NEIL VINCENT
IPC: F15B11/076
Filed: 1965-03-16
Abstract: 1,106,154. Pneumatic single-stroke apparatus. INTERNATIONAL BASIC ECONOMY CORPORATION. March 16, 1965, No. 11181/65. Heading F1P. [Also in Division F2] The forward speed of a single-stroke compressed air actuated piston 10 is maintained at a constant slow rate by means of a dashpot piston 22 connected thereto by a rod 24 and slidable in a hydraulic cylinder 12 having at one end a fluid outlet 26 leading to a filter 28, a manually operated reducing valve 14, a three-stage laminar flow capillary tube 16a, 16b, 16c and a line 36 back to the other end of the cylinder 12. The tubes 16a, 16b, 16c are mounted in a temperature-controlled water bath 55 and their outlets 33, 40, 45 are connected through solenoid valves 34, 41, 46 to the line 37 and to branch lines 48, 49, 50 leading to the underside of the control means of valve 14 which may be of the diaphram type thereby maintaining a pressure differential between the ends of the capillary tubes.
Patent GB-1454235-A (GB)
Title: Bactericidal insecticidal or fungicidal mixtures
IPC: A01N47/40
Filed: 1974-03-14
Abstract: 1454235 Fungicidal mixture LABORATOIRE DE CHIMIE ET DE BIOLOGIE SA 14 March 1974 [27 Aug 1973 13 Feb 1974] 11325/74 Heading A5E A bactericidal, insecticidal and/or fungicidal composition comprises a mixture of dicyanodiamide, ammonium nitrate and from 4-30% by wt. of silica. This mixture can be accommodated in a metal container provided with a wick or a ring of combustible material for igniting the mixture which then emits smoke. The addition of a binder and optionally Na chlorate enables the mixture to be converted into the form of small plates or sticks. A preferred composition comprises 40% dicyanodiamide, 60% ammonium nitrate and 10% silica, the addition of silica serving to regulate the exothermic reaction.