baber/WOPTO huggingface dataset:
Patent GB-550620-A (GB)
Title: Improvements in or relating to moistureproof sheets or films and methods of producing the same
IPC: C08J7/052
Filed: 1941-07-10
Abstract: 550,620. Resinous condensation products. BRITISH CELLOPHANE, Ltd. July 10, 1941, No. 8742. Convention date, July 11, 1940. [Class 2 (iii)] [Also in Group VIII] Moisture-proof coatings for sheets or films made of regenerated cellulose, cellulose esters and ethers, gelatine, polyvinyl resins, rubber hydrochloride, &c. comprise a urea-formaldehyde-monohydric alcohol resin condensed by heat to the hardened insoluble form and a wax moisture proofing agent. The resins may be prepared by condensation of the ethers of dimethylol urea, e.g. as described in Specification 483,399 or the monomeric crystalline dimethylol urea ether may be used as such or in partly polymerized form and condensed in situ byheating the film, if desired, with the addition of .an acid condensing agent, e.g. maleic acid. Resins derived from higher alkyl ethers, e.g. lauryl or octyl ethers, are preferred. Waxes specified are paraffin wax, or monohydric esters of higher fatty acids having a m.p. above 50C. The heat-sealing properties of the film are improved by the addition of amides, e.g. diphenyl lauramide, dimethyl-benzoyl benzamide, acetanilide ; blown oils, ester gums, maleic anhydride modified rosins and estergums, methylabietate, resins, and gums may also be added. The compositions may be applied dissolved in mixtures of solvents, e.g. toluene, ethyl acetate, isobutyl alcohol or n-butyl alcohol. In example regenerated cellulose sheeting is coated with a composition comprising urea-formaldehyde-isobutanol resin, paraffin wax, blonde shellac, gum dammar, isobutyl alcohol, toluene and ethyl acetate. Other components specified in the examples are : rosin modified by treatment with H 2 SO 4 , as described in U.S.A. Specification 2,017,866, hydrogenated methyl abietate, non-drying oil modified glycerol-phthalic anhydride resin, sebacic acid modified alkyd resin, dibutyl phthalate and n-butyl alcohol.
Patent GB-440695-A (GB)
Title: Improvements in or relating to methods of and apparatus for making continuous strip material
IPC: B29B13/06
Filed: 1935-03-20
Abstract: In making continuous strip material a continuous web is prepared from cellulose derivative solutions, and during drying the web is severed longitudinally.  One side of a metal belt 19 having raised marginal ribs is coated with fluent viscous material by dipping four times into tanks 22.  The belt passes through openings in a partition 13 into a heated chamber 11 where the successive coatings applied are partly dried.  The strip 25, containing from 10 to 20 per cent of moisture, is peeled off the belt and cut by circular knives 32, 34, into two groups of strips which, diverging, pass into a heated oven 40 where they are conveyed in sinuous paths by belts conveyers and finally wound on rolls.  The belt engages pulleys 14 only at its margins and pulleys 17 are narrower than the belt so that they do not engage its margins.  The belt is cleaned and polished by brushes 29.
Patent GB-549124-A (GB)
Title: Improvements in or relating to mechanism for raising and lowering the deck of transport vehicles
IPC: B60P1/02
Filed: 1941-07-11
Abstract: 549,124. Tipping vehicles; adjusting height. KELLETT, W. P. July 11, 1941. No. 8771 Convention date, July 15, 1940. [Classes 108 (i) and 108 (ii)] Hydraulic means for raising and lowering and also for longitudinally tilting a movable deck of a vehicle, and which has pairs of lifts at the ends of the vehicle, comprises pressure pumping means with valves for selectively controlling the front and rear lifts. The front and rear pairs of lifts A, B and C, D are actuated respectively by gear pumps at each end of a valve casing 10, in which are transversely arranged taper control valves 36, Fig. 6, with operating levers 41. Fig. 8 shows the gear pumps 23 with the valves 36 in position for delivering liquid from the pumps to passages 9, 12 connected to pipes 8, 11 shown in Fig. 1 as leading to the lift cylinders A and C.
Patent GB-597571-A (GB)
Title: Improvements in method of manufacturing sound reproducing devices and to the devicesresulting therefrom
IPC: H04R1/14
Filed: 1944-05-09
Abstract: 597,571. Casting composite articles. ZENITH RADIO CORPORATION. May 9, 1944, Nos. 8781 and 8782. Convention dates, April 23, 1943, and March 11, 1944. [Class 83 (i)] [Also in Group XXXIX] The polepieces 11 and 12 of a deaf-aid telephone receiver are held in a recess 24 in the base 10 by metallic cement cast in situ, the polepieces and yoke 13 being assembled in a jig and forced into and held in correct position while the cement, which .expands as it cools, is heated by high-frequency currents and cooled. The jig is then removed and the assembly of the instrument completed (see Group XXXIX).
Patent GB-177398-A (GB)
Title: Improvements in machines to trim hedges by motor power
IPC: A01G3/04
Filed: 1921-03-22
Abstract: 177,398. Houseman, W. March 22, 1921. Hedge-cutting machines. - A hedge-cutting machine, shown in plan in Fig. 1, consists of a wheeled truck E carrying a motor B whicb drives by means of a belt C and bevel-gearing C', a disc A with knives or cutters as described in Specification 23921/99. The disc A is mounted at the end of a long tiltable framework D on a shaft K on the truck E, which runs on wheels J and is drawn by shafts F.
Patent GB-704829-A (GB)
Title: Improvements in or relating to hydraulic servo motors
IPC: F04B1/04
Filed: 1952-04-07
Abstract: 704,829. Fluid-pressure servomotor-control systems. HOBSON, Ltd., H. M., and GREENLAND, L. S. Jan. 21, 1953 [April 7, 1952], No. 8830/52. Addition to 698,281. Class 135 In a servomotor system according to the parent Specification, the control valve 26 serves to vary differentially the restrictions in both outlets from the ends of the servomotor housing. Also, the stem 13 of the servo-piston extends through both ends of the housing so that the effective areas of the faces of the piston are equal and the piston will be unaffected by variations in total inlet or outlet pressure.
Patent GB-908756-A (GB)
IPC: C10M159/20
Filed: 1961-03-10
Abstract: 908,756. Lubricating oil compositions. LUBRIZOL CORPORATION. March 10, 1961 [July 22, 1960], No. 8860/61. Class 91. A lubricant comprises (i) a mineral lubricating oil, e.g. SAE 30 mineral oil, and (ii) 0À1 to 20% by weight of a detergent comprising alkaline earth metal salt of a sulphonic acid or of a phosphorus acid derived from the reaction of a substantially aliphatic hydrocarbon with an inorganic phosphorus reagent, and (iii) a small amount, i.e. 0À01 to 0À5% by weight, of anthranilic acid to increase the resistance to deterioration of the lubricant due to the presence of the metal salt. The sulphonic acids may be either petroleum sulphonic acids or alkylaryl sulphonic acids prepared by treating alkylated aromatic compounds with a sulphonating agent, and the phosphorus acids may be prepared by treating a polymer of a lower mono-olefin with a phosphorizing agent, if desired after chlorinating. Sixteen specific examples of detergent are described. In preparing the salt, the metal compound may be stoichiometrically in excess of the acid radical. Corrosion inhibitors may be incorporated in the lubricant in amounts of 0À01 to 5% by weight and eight specific examples are given. They fall into five classes:-(1) alkaline earth metal salts of alkylated phenolic compounds; (2) metal salts of organic phosphorodithioic acids, especially Zn and Ba salts; (3) sulphurized or phosphosulphurized hydrocarbons or fatty materials; (4) metal salts, e.g. of Zn and Cd, of organic thiocarbamic acids; and (5) organic phosphites, especially of the formula (RO) 2 POH, R being an aryl or alkyl radical containing 4 to 30 C atoms. U.S.A. Specifications 2,316,080, 2,316,081, 2,616,905, 2,723,234, 2,861,272, 2,865,956, 2,902,105, 2,902,448, 2,906,709 and 2,921,901 are referred to.
Patent GB-488740-A (GB)
Title: Improvements in or relating to speed control means for air-craft
IPC: B64D31/02
Filed: 1937-03-25
Abstract: 488,740. Fluid-pressure servomotorcontrol systems. SPERRY GYROSCOPE CO., Inc. March 25, 1937, No. 8877. Convention date, March 25, 1936. [Class 135] To maintain the speed of an aircraft constant, the engine throttle valve is controlled by means responsive to the air-speed of the craft, such as a Venturi tube 3 mounted in the air stream. The flow of air through this tube produces a suction inside a bellows 5 which operates a relay valve 17 controlling suction through a conduit 20 to the two sides of a double bellows 23. Movement of a central partition 24 of this bellows actuates a pilot valve 31 through a floating lever 28 which regulates the supply of pressure fluid to a piston 44 which actuates the throttle valve of the engine through a link 2. The rod 45 of the power piston 44 is connected through racks 36, 33 and gearing 35, 34 to the other end of lever 28 to provide a return movement of the pilot valve. Interconnected valves 49 and 52 are provided to byepass the ends of the power cylinder 43 and the bellows 23 to cut out the automatic operation and allow of manual adjustment of the throttle. Specification 416,813, [Group XXXIII], is referred to.
Patent GB-215331-A (GB)
Title: Binoculars
IPC: G02B23/00
Filed: 1924-04-08
Abstract: 215,331. B³nger, L. May 5, 1923, [Convention date]. Field glasses.- Binoculars in which the real images are formed by concave reflectors h, have the reflectors h set at an acute angle to the optical axis and to one side of the erecting systems sn that the distance between the reflectors h is greater than the distance between the eye-pieces a. The reflectors h are arranged behind the eyepieces and when in use are located at the side of the head in the manner of spectacles. The optical system comprises plane windows o, reflectors h, erecting prisms d, r, the prisms d being roof prisms and eyepieces a. To correct for astigmatism one face of one prism in each system is curved. The optical elements are mounted in frames of light metal hinged together; and sunshades p are fitted as shown. The reflectors h may be of the Mangin type.
Patent GB-140814-A (GB)
Title: Improvements in or relating to rolling mills for thin sheets
IPC: B21B35/10
Filed: 1920-03-26
Abstract: 140,814. Soc. Anon. des Ateliers de Construction de Hal. March 26, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Rolling.-In a machine for rolling thin sheets of aluminium, or like metal foil, preferably in piles, the upper roll a is driven from the lower roll b through a chain g, a countershaft k, and gearing h, f. The chain g preferably has an adjustable stretcher roll h.
Patent GB-416982-A (GB)
Title: Improvements in and relating to means for controlling the tone of low frequency speech currents of sound reproducing apparatus
IPC: H04S7/00
Filed: 1933-03-24
Abstract: 416,982. Impedance networks. STANDARD RADIO RELAY SERVICES, Ltd., Bush House, Aldwych, JENKINS, G. M. O., 432, North Circular Road, Willesden, and ADORJAN, P., 21, Wetherby Gardens, Earl's Court, all in London. March 24, 1933, No. 8937. [Class 40 (iii).] An attenuator for varying tone comprises a circuit favouring high frequencies which can be brought into action alternatively to a circuit favouring low frequencies. A series condenser 5 which is shunted by a variable resistance 6 and favours the higher-frequency components, and a shunt condenser 9 which is in series with a variable resistance 10 and favours the lower-frequency components. In the position shown, the attenuator has no effect, condenser 9 being disconnected at 10, 11, while condenser 10 is short-circuited at 7, 12 ; but condenser 5 or 9 is brought into play if wipers 7, 11 are turned to the left or to the right. Inductances may be used instead of condensers.
Patent GB-292286-A (GB)
Title: Improvements in or relating to closures for bottles, cans and other containers
IPC: B65D41/42
Filed: 1927-04-01
Abstract: 292,286. Hall, C. R. April 1, 1927. Stoppers secured by clips; sealing.-A flanged closure for bottles and other containers comprises an internally-fitted and inwardly-projecting spring member 20 adapted to engage beneath a shoulder on the bottle and a weakened or mutilated portion 15 on the flange to allow removal of the closure. The spring member 20 is disposed in a recess 18 stamped in the flange and the flange at the portion 15 is indented to provide inwardly extending projections. To facilitate removal of the closure scoring extends either around the flange or merely for a short distance from the. ends of the mutilated portion. In a modification, the mutilated portion is provided at one end with a tongue by which it may be torn off.
Patent GB-330967-A (GB)
Title: Improvements in or relating to the ventilation of dynamo electric machines
IPC: H02K9/00
Filed: 1929-03-20
Abstract: 330,967. General Electric Co., Ltd., and Orsettich, R. March 20, 1929. Dynamos and motors, armatures and field magnets, cooling and ventilating. - The fan of a dynamo-electric machine, particularly one in which the ratio of the rotor diameter to that of the shaft is relatively small, is of the aeroplane propeller type, i.e. the type in which the angle between a plane perpendicular to the axis of rotation bf the fan and planes passing through the leading edge and the trailing edge of a blade and parallel to the length thereof decreases from the root towards the tip of the blade. The diameter of the fan is preferably substantially the same as that of the rotor. The blades preferably taper from root to tip, and the fan may be located in a converging-diverging nozzle. In the form shown, the fan with vanes 6 is mounted on the shaft 2 of an alternator which has a closed-circuit cooling system, and is located in a converging- diverging nozzle formed by the part 12. This nozzle, together with the shaped ring 15, forms a stream-line passage for directing the cooling fluid, which is drawn from the space 13 which is open to the ducts of the circulating system, away from the shaft 2 into the space 14. The cooling fluid sweeps past the end connections 16 and through the channels 19, then flows up and down the ducts 20 and ultimately reaches the space 21 which is open to the discharge ducts of the circulating system. Some of the fluid from the space 14 passes directly to the air-gap 22 and thence through the ducts 20 to the space 21, whilst cooling fluid is also drawn from the space 13 up the ducts 9, 10 and 11 and past the end connections 7 by the centrifugal action of the rotor, and so passes to the space 21 via the air-gap 22 and ducts 20. A fan may be provided at both ends of the machine.
Patent GB-497526-A (GB)
Title: Window regulator mechanism
IPC: E05F11/38
Filed: 1938-03-24
Abstract: 497,526. Vehicle-window regulators. DETROIT HARVESTER CO. March 24, 1938, No. 9036. Convention date, May 10, 1937. [Class 20 (iii)] A vehicle-window regulator comprises a rotatable crank 14, and a link 21 pivoted thereto and connected slidably to the retainer slot 24 of the window. When the window is being raised, the link 21 comes into contact with ears on each side of the crank and moves with the crank till the window is shut, a flange 30 on the mounting plate and a pin 29 on the link maintaining the relative positions during this part of the opening and closing movements. The roller 22 connecting the link and retainer plate is arranged to be at the end of the retainer slot when the pin 29 leaves the flange 30. The crank is slotted and internally toothed at 17 and driven by a hand-crank and gear 18.
Patent GB-829924-A (GB)
Title: Improvements in or relating to head-coverings
Inventor: COGHILL BERTIE WILLIAM
IPC: A42B1/06
Filed: 1957-03-19
Abstract: 829,924. Headwear. HALSTEAD & SEAGER Ltd. Feb. 20, 1958 [March 19, 1957; April 25, 1957], Nos. 9054/57 and 13205/57. Class 63 Headwear having the general appearance of a peaked cloth cap is made by forming fabric into the shape of a beret or mob cap, folding the fabric inwardly along an arc near the periphery as shown at 19, Fig. 3, the stitching at 12 through the fold and the single thickness of fabric below it. The stitching also passes through a crescent shaped stiffener 11, Fig. 2, 3 which is also secured by a line of stitching 13. Specifications 724,342 and 770,735 are referred to.
Patent GB-181847-A (GB)
Title: Improvements in or relating to boot and shoe trees
IPC: A43D3/14
Filed: 1921-03-24
Abstract: 181,847. Young, C. A., and Wooding- ton, J. H. March 24, 1921. Trees and stretchers.-Relates to adjustable stretcher is formed of a steel strip bent to provide along its length a series of alternating projections and depressions to increase the resiliency and facilitate handling. The ends are shaped to engage the inside of the shoe at the toe and heel.
Patent GB-764537-A (GB)
Title: Improvements relating to the burning of materials containing sulphates
IPC: C04B7/04
Filed: 1954-03-29
Abstract: Sulphates, present in lime or lime sludge which is burnt, are reduced by an agent introduced into the lime after they have been at least partly calcined but while they are still being burnt. The size of the reducing agent particles must be such that they are not small enough to be burnt in the flame, or too coarse e.g. above 2 mms., that incomplete reaction with the sulphates results.  Agents specified are, coke coal, oil and gas, and they may be admitted with the fuel.ALSO:Sulphates, present in materials containing also calcium carbonate which are burnt for making cement, are reduced by an agent introduced into the materials after they have been at least partly calcined but while they are still being burnt.  Reducing agents e.g. coke, coal, oil or gas, may be blown through the discharge end of the kiln, and must be large enough to contact the materials and not be burnt in the flame, but they should not be so coarse that they do not react completely with all the sulphate present, e.g. not greater than 2 mms. size.  They may be admitted with the fuel.
Patent GB-904559-A (GB)
Title: Modified polyamides
Inventor: THOMPSON MORICE WILLIAM
IPC: C08G69/34
Filed: 1959-03-17
Abstract: In Example VII, a solution in xylene of a polyamide-imide is mixed with a urea-formaldehyde resin, iron oxide pigment and mica particles, the composition being applied by dipping to a steel panel and stoved.  In Example VIII, a polyamide-imide solution as in (VII) is mixed with a melamine-formaldehyde resin, a dehydrated castor oil alkyd and vegetable black pigment, the composition being applied to rolling to an aluminium panel and stoved.ALSO:A polyamide-imide resin is made by reacting a conjugated unsaturated fatty acid, an unsaturated polycarboxylic acid cyclic anhydride and a diamine. Specified fatty acids are 2:4-pentadienoic acid, sorbic acid, 9:11-octadienoic acid, 10:12-octadienoic acid, 9:11:13-octadecatrienoic acid and 10:12:14-octadecatrienoic acid. Specified anhydrides are maleic, itaconic, dimethyl maleic, citraconic, 3:6-dihydrophthalic, 3:4:5:6-tetrahydrophthalic, 3:6-endomethylene-2:4:5:6-tetrahydrophthalic and 3:4:6-endoxo-2:4:5:6-tetrahydrophthalic anhydride.  Specified diamines are ethylene diamine, propylene diamine, hexamethylene diamine, decamethylene diamine, p-phenylene diamine, m-phenylene diamine, 1:4-naphthylene diamine, toluylene diamine, p:p1-diamino diphenyl, p:p1diaminodiphenylmethane, p:p1-diaminodiphenylether; p:p1-diaminodiphenyl sulphone and m- and p-xylene diamine.  The products of the invention may be blended with urea-formaldehyde, melamine-formaldehyde, phenol-formaldehyde, alkyd or epoxy resins or nitrocellulose and are soluble in xylol-butanol mixtures.  The products of the invention are preferably made by reacting the diamine with a preformed Diels Alder adduct of the acid and the cyclic anhydride.  In the examples, polyamide solutions are made by reacting in the presence of xylene:-(I) maleic anhydride, b -eleostearic acid and hexamethylene diamine; (II) maleic anhydride, b -eleostearic acid and ethylene diamine; (III) m-xylylene diamine, maleic anhydride and b -eleostearic acid; (IV) 1:3-propylene diamine, b -eleostearic acid and maleic anhydride; (V) linoleic acid, hexamethylene diamine and maleic anhydride and (VI) p-phenylene diamine, b -eleostearic acid and maleic acid. The solutions are thinned by the addition of:-(I) b -isopropoxy ethanol and xylene; (II) butyl acetate and butanol; (III) butanol and xylol; (IV) butanol and (VI) xylene and ethoxyethanol. In Examples (VII) and (VIII), the polyamide solution of Example (I) is mixed with:-(VII) a urea-formaldehyde resin, iron oxide pigment and mica particles and (VIII) a melamine-formaldehyde resin, a dehydrated castor oil alkyd and vegetable black pigment.
Patent GB-126988-A (GB)
Title: Process and Apparatus for the Manufacture of Propellers by Pressing and Moulding upon a Matrix.
Inventor: FILIPPI ANTOINE PADOUE
IPC: B27M3/10
Filed: 1916-06-30
Abstract: 126,988. Filippi, A. P. June 17, 1915, [Convention date]. Forming or shaping.- Propellers are formed of thin wood laminµ 2, glued &c., together, and shaped on a matrix 1 by sets of cramps or presses 3, 3<1>, the members 3 of which are shaped progressively to correspond with the upper face of the matrix. In this way, one face of the blade is shaped to its finished form, .the other face being afterwards worked-up by the ordinary methods. The cramps are formed of wood or other material, and the profiled members 3 may be reinforced with metal.
Patent GB-472687-A (GB)
Title: Improvements in arrangements for suppressing magnetic saturation phenomena in electric alternating current power circuits
IPC: H02H9/00
Filed: 1936-03-28
Abstract: 472,687. Electricity supply. TELEFONAKTIEBOLAGET L. M. ERICSSON. March 28, 1936, No. 9256. Convention date, April 1, 1935. [Class 38 (iv)] [Also in Group XXXVI] Transformer arrangements.-Means for suppressing saturated phenomena in A.C. circuits including a capacity in series with an inductance having a bent magnetic characteristic such as a magnetic instrument transformer T connected to the terminals of a capacitative voltage divider E, comprises a series damping resistance R shunted by an impedance, the value of which is small for the operating frequency but is sufficiently large to force the sub-frequency currents causing the saturation phenomena to pass to a considerable extent through the damping resistance. The impedance shunt may consist of a choke coil L in series with a condenser C<3> tuned to resonate at the operating frequency. The impedance may be replaced by a normally closed contact opened by a relay responsive to the frequency of the subharmonics.
Patent GB-1078357-A (GB)
Title: Gyroscopic apparatus
IPC: G01C19/56
Filed: 1964-10-22
Abstract: 1,078,357. Gyroscopic apparatus. LITTON INDUSTRIES Inc. Oct. 22, 1964 [Nov. 15, 1963], No. 9262/67. Divided out of 1, 078, 356. Heading G1C. The disclosure of the Specification is the same as that of Specification 1, 078, 356 but the claims differ.
Patent GB-287329-A (GB)
Title: Apparatus for retouching, modifying, or printing designs, or inscriptions on photographs
IPC: G03C5/04
Filed: 1927-04-05
Abstract: 287,329. Bennetto, J. W. April 5, 1927. No Patent granted (Sealing fee not paid]. Enlarging, copying, and reducing; designation marks, producing on negatives by exposure.-A pocket electric photographic apparatus, for retouching, enlarging or reducing. and for printing by contact titles, trade marks, &c., comprises a tube containing a light bulb 3 which can be electrically connected to a dry battery 2 by slight pressure on a switch 12. The beam of light passes through an orange safe light 4<a>, a double plano-convex condenser 7, 7<a> and a film stretched across the tube between reels 5, 6. The film may carry such designs as shading, hatching, stippling, &c., and the light is focused by a lens 10 in a sliding tube 9 on to a light-sensitive surface, for example before or during development but before fixing. Full pressure on the switch 12, when the design has been accurately placed, removes the safe light 4a from the path of the light beam. Variations in the size of the design are effected by focusing. By removing the tube 9, small designs, titles and trade marks may be impressed on the sensitive surface by contact printing.