baber/WOPTO huggingface dataset:
Patent GB-234938-A (GB)
Title: Improvements relating to the control of electric motors
IPC: B60L7/12
Filed: 1924-03-18
Abstract: 234,938. Binney, E. A., and Metropolitan-Vickers Electrical Co., Ltd. March 18, 1824. Regenerative systems.-In the regenerative control of a group of traction motors 1 - - 4, the motor field windings 5 - - 8, during regeneration, are excited by the generator 12 of a motor generator set having generator field windings 15, 17 and motor field windings 16, 18 arranged as show in relation to another motor generator set 20, 21 and a variable resistance 19, the object being to keep up the regenerated voltage and to adjust the excitation of the traction motors according to line fluctuations. Adjustable resistance may be placed in parallel with the field winding 15 instead of or in addition to the adjustable resistance 19. A battery may be connected in parallel with the field windings 17, 18. The motors of the motor-generator sets preferably drive cooling fans 14, 24.
Patent GB-491856-A (GB)
Title: Process for the determination of printing light intensities for the production of coloured photographic prints
IPC: G03C7/00
Filed: 1937-03-09
Abstract: 491,856. Photo-electric photometers. GASPAR, B. March 9, 1937, No. 6960. Convention date, March 9, 1936. [Class 40 (iii)] [Also in Group XX] Original colour films and prints obtained under scaled wedges are compared by photo-electric means. Two photo-electric cells, exposed to two identical originals or exact prints through filters, are placed in two branches of a Wheatstone bridge, supplied with alternating current, and the resistance slide moved until no sound is heard in the telephone detector. One of the originals is replaced by the test images, and the incorrect prints produce sound, whereas the correct print produces no sound. One photo-electric cell and its associated original may be replaced by a rheostat. As shown in the Figure, a photoelectric cell 10 is connected to a measuring instrument 12. The currents produced on illuminating successively an original or correct print and the prints to be tested are compared. 11 Is a shifting device by which it is possible to use either the right or left half of the print. The shifting device may be provided with a coloured window. The test film may be examined for the component colour intensities transmitted by the use of a ray splitting system such as a prism or semi-transparent mirror and two photo-electric cells. Another method of testing consists in the interposition between the print and the photo-electric cell of a colour filter divided into areas corresponding to those of the test print but of colours exactly complementary to those of the original. An incorrect print produces a sensation to the photo-electric cell.
Patent GB-1390024-A (GB)
Title: Wheel and tyre assemblies
IPC: B60C15/024
Filed: 1971-03-16
Abstract: 1390024 Pneumatic tyre and wheel assemblies DUNLOP HOLDINGS Ltd 7 March 1972 [16 March 1971] 7024/71 Heading B7C A wheel and tyre assembly comprises a wheel rim 1 having a pair of spaced tyre bead seats 2, 3 and annular substantially axiallyoutwardly-extending flanges 4, 5 located one adjacent each bead seat to support the sidewalls of a deflated tyre, a tyre 6 mounted on the rim 1 to define an inflation chamber therewith, and means to prevent the tyre from being dislodged from the rim when running deflated, the tyre 6 having in each lower sidewall region an annular rubber buttress 9 or 10 with a substantially axially-outwardly-extending radially inner face, and each buttress being located such that when the tyre is inflated to its normal working pressure the buttress rides clear of the rim 1 but should the tyre deflate the buttress contacts the adjacent flange 4 or 5 to support the associated tyre sidewall and accomodate relative movement between the rim and the sidewall. Each buttress may have a series of radially directed and axially extending castellations on its radially inner face (Fig. 2, not shown). The tyre may be a radial-ply tyre with a breaker assembly or alternatively a cross-ply tyre with or without a belt. The aspect ratio of the tyre may be 30-75% and the tyre tread width may be greater than the distance between the bead heels of the inflated tyre. The sidewall supporting surfaces of the flanges 4, 5 may be coated with a low friction material. The means for preventing the deflated tyre from being dislodged from the rim may, as shown, comprise a non-decreasing rim diameter between the bead seats 2, 3 so that the rim is without a well, and/or movable studs or projections on the rim for preventing at least the outboard tyre bead from moving. The assembly may be provided with a saddle projecting radially outwardly from the rim to support the interior surface of the tread portion of the deflated tyre, which saddle may also act as a bead spacer. Where the rim is without a well it may be a split rim or a rim whose well has been closed up by axial compression after mounting of the tyre. The tyre may be secured to the rim by swaging the rim over the tyre beads after mounting of the tyre. The assembly may be provided with a lubricant for the tyre interior surfaces, as described in Specifications 1,359,467 and 1,359,468, to facilitate running of the assembly with the tyre deflated. Specification 1,359,463 is also referred to.
Patent GB-1430222-A (GB)
Title: Insulating covers for hot water containers
IPC: F24H9/02
Filed: 1974-02-15
Abstract: 1430222 Thermal insulation ETABS DAMOIS FRERES 15 Feb 1974 [12 July 1973] 7026/74 Heading F2X An insulating cover for a hot water container 1 comprises an outer layer 8 of flexible material, e.g. polyvinyl chloride, lined with a layer 9 of flexible insulating material, e.g. expanded polyurethane with open cells, glass wool or mineral wool, the cover being in the shape of a hood having a crown and a side wall terminating in an aperture, the hood being composed of two symmetrical parts 3, 4 divided along an axial median plane and joined by a zip fastener 5. The embodiment illustrated also has an intermediate layer 10 of expanded plastics material, e.g. expanded polyurethane with closed cells. The lower edge of the cover is in the form of a hem 6 within which a ligature 7 is situated, the ends of which are arranged to be joined together so that the cover 2 completely encloses the container 1.
Patent GB-1421135-A (GB)
Title: Fermentation process for converting methane and elemental  nitrogen into proteinaceous material
IPC: C12N1/26
Filed: 1972-02-16
Abstract: 1421135 Fermentations involving methane BRITISH PETROLEUM CO Ltd 13 Feb 1973 [16 Feb 1972 12 April 1972] 7074/72 and 16826/72 Heading C6F An elemental nitrogen and methane utilizing micro-organism is cultivated continuously in an aqueous broth in the presence of methane and free oxygen and nitrogen such that the amount of combined nitrogen supplied to the broth is less than that recovered as crude protein. Combined nitrogen may be supplied as NH 4 + at less than 2 mgm/l or as NO 3 -, methane used may be natural gas and the oxygen and nitrogen may be supplied as air enriched with oxygen. The cultivation may be at above atmospheric pressure. A culture for use in the process may be prepared by cultivating in the presence of methane, free oxygen, and a nitrogen source (preferably combined nitrogen) to give the concentration of microorganisms required for steady state operation in a fermenter. The nitrogen source may be NO 3 - or NH 4 + (2-100 mgm/l) ions. The preferred micro-organism is a strain of Methylococcus capsulatus.
Patent GB-908168-A (GB)
Title: Dough apportioning and roll kneading machine
IPC: A21C7/00
Filed: 1961-02-27
Abstract: 908,168. Dough dividing and roll kneading machines. FAHR, O. Feb. 27, 1961 [Feb. 27, 1960], No. 7166/61. Class 87(2). Dough pieces 5 are ejected from a rotary dough divider by plungers 8 assisted by a stripping and discharging roller 15 and the pieces fall into cells 4 of a dough kneading drum of the type described in Specification 870,124 in. which the belt 3 is positioned adjacent the uppermost cell.
Patent GB-1520155-A (GB)
Title: Quick release fasteners
IPC: F16B21/06
Filed: 1977-02-23
Abstract: 1520155 Stud and socket fastening DZUS FASTENER EUROPE Ltd 23 Feb 1977 [24 Feb 1976] 07299/76 Heading E2B  A quick-release fastening comprises a stud having a head 4 and shank 8 and a socket having resilient legs 18 and adapted to be secured to e.g. a panel 23 by means of recess 21. In use the stud is pushed into the socket, in which it is a snap fit, to secure the panel 22 to a support 27. To release the stud is turned, by means e.g. of a screw slot, when co-operating ramps 6 and 17 on the stud and socket respectively serve to push the stud axially away from its fastened position (Fig. 5), the resiliency of legs 18 bearing on tapered portion 11 assisting in the removal of the stud.
Patent GB-1012926-A (GB)
Title: Improvements in yarn texturing apparatus and method
Inventor: MEYERS GORDON EDWARD
IPC: D02G1/00
Filed: 1964-02-21
Abstract: 1,012,926. Finishing yarns. CLARENCE L. MEYERS & CO Inc. Feb. 21, 1964, No. 7341/64. Heading D1F and D1W. A single, multifilament or staple, thermoplastic e.g. polyamide, polyacrylonitrile or polyester, or wool yarn (or a group thereof) is crimped by feeding it into a path between heated deflecting elements, moving the elements into overlapping relation to form a sinuous path, reducing the overlap to compensate for shrinkage of the yarn by shortening of the path as the yarn becomes heated and withdrawing the yarn. A multifilament yarn, with any e.g. producer, twist first removed, may be passed directly into a second such path to produce additional crimps in the yarn which are out of phase with the initial crimp in respect of longitudinal position and/or direction. The doublecrimped yarn, unlike the other, requires no treatment such as "blowing" to enhance its bulk. As shown in Figs. 1 and 2, yarn 44 is withdrawn from a creel, beam, or packages as at 45, through a tensioner 46, around a lease rod 47, through one of a series of eyes 48, enters a path initially linear and then sinuous provided on a rotor 20 and is carried therearound, heated thereby and allowed to contract thereon. Crimped yarn 74 is withdrawn under minimum tension over lease-rod 75, cools below heat-setting temperature, passes through an air chamber 77 wherein it is opened and bulked by a blast of air, and is removed through a driven feed roll 78 and weighting roll 82 to take-up or is wound directly on a spool carried by shaft 80, Fig. 10 (not shown). The rotor 20 houses electric heating elements 55 supplied through slip-rings 57, 58, and a pyrometer controller 63 is connected through slip-rings 65, 66, to thermocouples in the rotor whereby a constant, predetermined, heat-setting temperature may be maintained. Yarn paths on the rotor are provided by initially circumferentially aligned slots 30, Fig. 8, in sliding and fixed elements, as at 27, housed in slots 26: as the yarn progresses around the rotor, sliding elements 27 (under the control of stationary end cams 36 and 33) are advanced so as to force the yarn into a sinuous path 53, partially retracted a distance 71, as determined by an inclined cam-face 70, Fig. 6, and then returned to initial alignment, the yarn being withdrawn from a linear or a sinuous path. A modified rotor, Fig. 15, comprises portions 20<SP>1</SP>, 20<SP>2</SP>, of different diameter i.e. each element 27 or 27<SP>1</SP> has two sets of slots of different radial depths, so that additional compensation for shrinkage is provided when the yarn makes two turns around the rotor.
Patent GB-491707-A (GB)
Title: Improvements in reflecting systems having two plane reflecting surfaces
IPC: G02B5/04
Filed: 1938-03-10
Abstract: 491,707. Optical systems. ZEISS, C., [Firm of]. March 10, 1938, No. 7444. Convention date, March 18, 1937. [Class 97 (i)] In an optical square comprising two plane reflecting surfaces for deviating at right-angles a ray pencil the plane of which intersects the reflecting surfaces in two straight lines including an angle of 45‹, the two reflecting surfaces are inclined at equal and opposite angles to the plane of the entering ray pencil, in order to produce deviation of the rays in a plane at rightangles to that in which they are deviated at right-angles. When the optical square consists of a pentagonal , prism, the reflecting surfaces of the prism are inclined as above and preferably the exit surface is so inclined that the emergent rays meet it at right-angles. The Figure shows a form in which the deviation in altitude can be varied, the mounts 7, 8 of the mirrors 5, 6 being mounted on shafts 9, 10, inclined at 45‹ to each other and connected by gearing 11, 12 so as to rotate through equal angles in opposite directions.
Patent GB-786704-A (GB)
Title: Improvements in cooking vessels
IPC: A47J27/58
Filed: 1956-03-09
Abstract: 786,704. Devices for preventing the boiling over of the contents of cooking vessels. HANSEN, H. E. March 9, 1956, No. 7474/56. Class 66. A device for preventing the boiling over of the contents of a cooking vessel comprises a perforated upper plate 3, Fig. 1, with an upstanding cowl 4 through which fluids can pass, and a lower plate 6 mounted so as to be free to rise and fall relatively to the upper plate 3, the lower plate 6 having an opening 7 beneath the cowl 4. During cooking, steam raises the lower plate 6 into contact with the upper plate 3 to close the holes 8 in the upper plate. The rising fluid escaping through the cowl 4 is trapped temporarily upon the upper plate until the weight of the cooled fluid is sufficient to press the lower plate 6 downwards, whereupon the cooled fluid returns to the cooking vessel through the holes 8 in the upper plate. The upper plate 3 may have a turned-down rimflange 10 resting on a shoulder 2 formed in the vessel 1, the bottom plate being movably housed within said rim-flange. Alternatively, Fig. 3, the bottom plate 6 is suspended on screw-studs 11 fastened to the top plate 3. The top plate 3, in Fig. 3, has a conically shaped upwardly projecting rim-flange 12 so that it may be used as a cover for cooking vessels of varying diameter.
Patent GB-548716-A (GB)
Title: Improvements in methods for producing photo-mechanical printing plates
IPC: G03F7/06
Filed: 1941-06-13
Abstract: 548,716. Photo-mechanical printing surfaces. CARTWRIGHT, H. S. M., HAIGH, A., and SMITH, F. H. June 13, 1941, No. 7491. [Class 98 (ii)] An adherent deposit is produced on a plate or cylinder of zinc or aluminium or of a certain alloys of these metals by chemical treatment of such a nature that the surface can afterwards be coated with a photographic emulsion suitable for exposure and development to produce a photographic image. Development may be effected with a tanning developer to produce a differentially hardened gelatine image which may be used as a collotype printing surface, or from which the soluble gelatine may be washed away with hot water, followed by etching to produce a relief or intaglio printing surface or by treating to form a lithographic printing surface with or without reversal of image. A deep-etch lithographic plate may be made by etching with an aqueous or spirit etch and afterwards treating with litho base or ink or both. The chemical treating solution may comprise (a) ammonium dihydrogen phosphate and ammonium nitrate; (b) ammonium dihydrogen phosphate and aluminium nitrate ; (c) ammonium fluosilicate and ammonium nitrate ; (d) ammonium molybdate and ammonium nitrate (or ammonium chloride or an earth metal nitrate) ; or (e) ammonium dihydrogen phosphate, ammonium fluosilicate; aluminium nitrate ; and ammonium molybdate. The solutions may be applied by a brush or by immersion. The action may be accelerated by the addition of gum arabic, oxalic acid, ammonium persulphate pernitrates, perchlorides, metallic zinc, ammonium molybdate, or ferrous ammonium sulphate. Specifications 6701/00, 2234/02, [both in Class 100], and 545,942 are referred to.
Patent GB-490311-A (GB)
Title: Improvements in and connected with reflectors for use in motor road vehicles
IPC: B60Q1/14
Filed: 1937-03-15
Abstract: 490,311. Look - out reflectors for vehicles. CHARLES, A. A. D. March 15, 1937, No. 7528. [Class 103 (ii)] A reflecting device for use at an end of a motor road vehicle for reflecting to the driver laterally-approaching traffic &c. comprises an apertured casing 5 of sheet-metal &c. in which a mirror 1 is mounted for angular adjustment by a remote control. As shown, the mirror 1, which is longitudinally and transversely-curved and is slightly eccentric relatively to the casing, is formed with a central non-reflecting part 7 and is connected by an upper end frame 2 and upper and lower segmental plates or arms 3 to a spindle 4 adapted to be rotated, for example, through a Bowden wire 8 and pulley 9 against the action of a spring 9a, or through a control rod connected to a lever on the spindle 4. The sides of the casing converge downwardly to a flanged stem 10 by which the device can be mounted on the radiator cap &c. A wiper comprising rubber strips 5a may be fitted inside the casing to engage and clean the mirror when the latter is rotated.
Patent GB-127375-A (GB)
Title: Telephone and like Apparatus.
Inventor: THOMPSON ARTHUR THOMAS
IPC: H04R11/00
Filed: 1918-12-07
Abstract: 127,375. Thompson, A. T., and James, A. Dec. 7, 1918. Magnetic instruments; receivers fitted with horns.-A telephone receiver fitted with a phonographic sound-box has a diaphragm of oblong form supported near its edges by adjustable springs. As shown in Fig. 1, the oblong diaphragm c is supported on springs f resting on arms d projecting from the upper end of a non- magnetic tube b. A bar magnet surrounded by coils in the telephone circuit is enclosed in the tube b. A cranked or other suitably-shaped needle rests on the diaphragm and is secured to the stylus bar of a sound-box h, the neck i of which communicates with a horn. The soundbox is supported by a lever k<1> pivoted to a pillar k and adjustable by means of a screw-threaded link o. An adjustable spring r regulates the pressure of the needle j on the diaphragm c. In a portable form of the apparatus, suitable for use by deaf persons, the trumpet is omitted and the sound-box neck is fitted with an earpiece. The magnet is of shorter form and is mounted on a flat resilient plate, which also carries the sound box and earpiece. A pocket battery may be used.
Patent GB-881044-A (GB)
Title: Nailing apparatus
Inventor: CAST ADOLF
IPC: B25C1/04
Filed: 1958-01-20
Abstract: 881,044. Nail-driving apparatus. REICH, K., [trading as REICH-MASCHINENFABRIK, KARL, M.]. Jan. 20, 1958, No. 7617/61. Divided out of 881,043 Class 89(3) [Also in Group XXIII] A compressed air nail-driving apparatus comprises a cylinder 101 housing a slidable driving piston 102 in which compressed air is admitted to the cylinder to effect the driving motion of the piston by means of a main inlet valve 135 operated by an auxiliary compressed air operated piston 123 controlled by a manually actuated control valve 119. The piston 102 carries a ram rod 145 which drives a nail 109 from a nozzle 111 into the workpiece. The ram rod 145 enters a tubular portion 110 of a cylinder foot 107 with a close fit and thereby prevents air from the chamber 143 of the cylinder 101 from being expelled through the nozzle, this air being forced by the piston 102 through openings 144 into an annular storage chamber 105. The piston 123 carries a stem 141 which during the driving stroke of the apparatus makes a pressure seal in a passage 140 so that the chamber 137 is cut off from an air vent 132. Upon release of the trigger 126, the valve 119 closes and the piston 123 returns to its upper position to close the valve 135 and vent the chamber 137 through the vent 132 so that compressed air stored in the chamber 105 can return the piston 102 to the upper end of the cylinder 101. As shown in Fig. 1, a connecting lever 128 associated with the trigger 126 is locked against operation by a stop 114 on the nozzle 111 and in order to release the lever 128 so that the trigger may be operated the nozzle 111 has to be pushed against the workpiece to cause the nozzle to slide axially against a spring 115 and thereby disengage the stop 114, (Fig. 2, not shown). A manually operated safety lever, (Fig. 3, not shown) may be provided for preventing actuation of the trigger 126. To retain the nail 109 in the nozzle 111, and to prevent it from entering the cylinder 101, springs 150, 151 respectively are provided. A spring loaded locking bolt 148 engages a groove 146<SP>1</SP> in a stem 146 on the piston 102 to releasably retain the piston at the upper end of the cylinder in readiness for a nailing operation.
Patent GB-824796-A (GB)
Title: Improvements in catamarans
IPC: B63B1/12
Filed: 1957-03-07
Abstract: 824,796. Catamarans. MANNERS, E. J., and DUGDALE, P. E. May 14, 1958 [March 7, 1957], No. 7630/57. Class 113. The hull of a catamaran is of asymmetrical cross-sectional and plan form, having a planing bottom transversely inclined in an inboard direction and with the outboard side of substantially planar form extending fore and aft. In the case of a single hull with an outrigger float, "inboard" means in the direction of said float. Figs. 4 and 7 show a dual-hull catamaran, each hull having a planing bottom G and outboard sides F inclined to the vertical. The hull may be fixed to the superstructure D in a manner permitting adjustment of the dihedral angle of the planing bottoms G, G.
Patent GB-679143-A (GB)
Title: Styrene modified alkyd resins
IPC: C09D125/14
Filed: 1950-03-27
Abstract: In making a styrene modified alkyd resin, a toluene-soluble interpolymer of 30 to 90 parts by weight of one or more drying oil fatty acids and 70 to 10 parts of a mixture consisting of 50 to 80 per cent by weight of a monovinyl aromatic compounds of the formula <FORM:0679143/IV (a)/1> and 50 to 20 per cent of one or more a -methylene alkyl aromatic compounds of the formula <FORM:0679143/IV (a)/2> wherein X and Y are each a hydrogen atom or an alkyl radical containing not more than 3 carbon atoms and R is a methyl or ethyl radical, is made by heating the reactants at 120-300 DEG  C., the interpolymer is then esterified by heating at 200-240 DEG  C. with a polyhydric alcohol containing at least three hydroxyl groups in amount sufficient to neutralize the carboxyl groups and to leave 1.5 to 2.5 free hydroxyl groups per polyhydric alcohol nucleus, and the resulting ester is then heated at 230-260 DEG  C. with a chemical equivalent amount of phthalic acid or anhydride.  Drying oil fatty acids specified are the fatty acids of linseed, dehydrated castor, tung, perilla, oiticica, sardine and menhaden oils and mixtures thereof and mixtures of highly conjugated drying oil fatty acids with non-conjugated semi-drying oil fatty acids, e.g. equal parts of tung and soyabean oil fatty acids.  Monovinyl aromatic compounds specified are styrene and o-methyl-, p-methyl-, o-ethyl-, p-ethyl-, o,p-dimethyl-, o,p-diethyl and o-methyl-p-isopropyl styrenes.  The a -methylene alkyl aromatic compounds specified are a -methyl-, p-methyl-a -methyl-, a -ethyl-, o,p-dimethyl-a -methyl- and p-isopropyl-a -methyl-styrenes.  Polyhydric alcohols specified are glycerine, pentaerythritol, mannitol, sorbitol, trimethylolpropane and 2,2,6,6-tetramethylolcyclohexanol.  The various stages of the process are preferably effected in an inert atmosphere, e.g. nitrogen, carbon dioxide and methane, and in the absence of inert liquid media.  Polymerization catalysts specified are benzoyl peroxide, acetylbenzoyl peroxide, tertiary butyl perbenzoate and tertiary butyl hydroperoxide.  Examples are given of the preparation of the resinous products and of varnishes therefrom by dissolution in a solvent consisting of mineral spirits and xylene and adding as driers the naphthenates of cobalt, manganese and lead, and guaiacol to prevent skinning. Specification 679,144 is referred to.