baber/WOPTO huggingface dataset:
Patent GB-1436273-A (GB)
Title: Assembly comprising an internal combustion engine and an air  compressor driven by way of gearing from the engine crankshaft
IPC: F02B67/04
Filed: 1974-01-18
Abstract: 1436273 Variable-ratio gearing KLOCKNERHUMBOLDT-DEUTZ AG 18 Jan 1974 [20 Jan 1973] 02470/74 Heading F2D [Also in Division F1] In an engine driven compressor the gear ratio between the engine and the compressor can be changed without undue alteration to the parts thereof. This is achieved by making the journal 15, on which the compressor driving gear 13 rotates, pivotable about an eccentric stud 16, the journal being retained in the desired position by a pin 19 inserted through a selected one of a plurality of bores 18 in the journal 15 into a bore 18a in the crankcase 1. Thus depending on which bore 18 is selected will depend the distance a between the crank-shaft gear 20 or a gear driven thereby and the driving gear 13 in mesh therewith. Appropriate selection of the gears 13, 20 for the distance a gives the desired gear ratio. A bolt 17 screwed into the crankcase 1 holds the journal 15 in position. A disc 11 with an eccentric stud 12 for the piston-rod 10 is secured by bolts 14 to the gear 13. To compensate for the different journal positions shim washers 21 are positioned between a flange 7 on the compressor cylinder 6 and the crank case surface surrounding an opening 8 for the passage of the cylinder 6 into the crankcase.
Patent GB-602152-A (GB)
Title: Improvements in or relating to loading platforms or gangways
IPC: B65G69/28
Filed: 1946-01-25
Abstract: 602,152. Loading platforms. TAIT, G.F., and MACMILLAN, R..Tan. 25, 1946, No. 2480. [Class 78 (iv)] A fixed loading stage has a loading ramp 6 which forms a movable section of the floor 4 of the fixed loading stage and extends inwards from the edge of the stage and is supported at each side by transverse metal rods 8, 9 extending beyond the sides of the ramp and having two or more rollers movable in inclined guides or channels 10 and 12, provided on or in fixed side bearers 5 beneath the floor of the loading stage, the guides or channels 12, terminating in a horizontal portion 12a, being more steeply inclined than the guides 10 which terminate in a rising channel 10a. Loose removable boards 11 are provided to fill the space between the ramp and the loading stage. The side joists 5 extend inwards at 5a beyond the inner end of the ramp floor. When the ramp is raised, a support such as a block may be inserted between the front wall 13 and the underside of the ramp, or a hinged support may be used. To compensate for the weight of the ramp when lifting and pulling it forwards counterbalancing weights may be suspended from cables which pass over suitable guide channels mounted between side joists 5, the ends of the cables being secured to the ramp forward of bar 9. A hinged metal plate 14 may be fitted to the end of.the ramp to facilitate transfer.
Patent GB-1412884-A (GB)
Title: Light-conducting fibre
IPC: G02B6/10
Filed: 1973-01-17
Abstract: 1412884 Optical fibre CARL-ZEISSSTIFTUNG [trading as JENAER GLASWERK SCHOTT & GEN] 17 Jan 1973 [24 Jan 1972] 2537/73 Heading C1M A light conducting fibre consists of a quartz glass core surrounded by a quartz glass sheath, the glass sheath having a higher water content and thereby a lower refractive index than the core. Preferably the difference in water content is at least 100 p.p.m. and the difference in retractive indices 0À0001. Such a fibre may be produced by forming a capillary of water containing quartz glass, inserting an anhydrous quartz glass core and drawing the resultant assembly to form a fibre. Alternatively a plurality of water containing quartz glass rods are grouped around an anhydrous quartz glass core and the assembly fused and drawn down to a tube.
Patent GB-482737-A (GB)
Title: Improvements in television screens
IPC: G03B21/60
Filed: 1936-06-25
Abstract: 482,737. Projection screens. PRIESS, W H. June 25, 1936, No. 2551/38. Void. Convention date, July 13, 1935. Divided out of 480,673. [Class 97 (i)] A screen for use in a television receiver has a translucent granular surface and a mirror surface backing; it may consist of a thin sheet of glass frosted on one side and mirrored on the other.
Patent GB-546891-A (GB)
Title: Improvements in or relating to feeding devices for sewing machines and the like
IPC: D05B29/06
Filed: 1941-07-11
Abstract: 546,891. Sewing-machines. BALLAMY, L. M., and SHEEPSHANKS, R. H. July 11, 1941, No. 2552/42. Divided out of 547,117, [Group IX]. [Class 112] Loose fibrous material 14 is fed to a multiple needle sewing machine 23 by means of a curved presser plate 10. An arm 34 rigid with the plate is pivotally connected to a crank pin 26 and a second crank pin 27 operates a link 37 pivoted to the plate 10. The crank pins have different throws and are out of phase but rotate at the same speed as the needle bar actuating eccentric 21. The forward end of the plate is saw toothed and the projecting parts pass between the sewing-needles. The under surface of the plate 10 may be grooved to provide the desired gripping action.
Patent GB-213054-A (GB)
Title: Improvements relating to speed equalising apparatus
IPC: F16H61/662
Filed: 1923-01-31
Abstract: 213,054. Jamieson, A. C., Gardiner, J. F., and Drew, J. A. H. Jan. 21, 1923. Variable-speed friction gearing is controlled automatically so that the speed of a motor such as a windmill may vary while the speed of the driven shaft is substantially constant. A driving-roller 2, Fig. 1, is connected to a roller upon the driven shaft 13 by a disc 3 which is movable in its own plane to equalize the speed. The disc 3 is for this purpose supported upon a nut 7, which screws upon a threaded portion 6 of an auxiliary shaft 20. The ends of the nut 7 carry rollers 9, 11, which can be brought into engagement alternatively with the back of the disc 3 by a tilting movement of the shaft 20. One end 17 of the shaft 20 is connected by a bell-crank lever 14 to a governor 12 upon the shaft 13. The governor tilts the shaft 20 so that the rollers 9, 11 operate to shift the nut 7 and disc 3 bodily. The nut 7 may screw off the portion 6, and is then held by a spring 25 ready to begin the return movement. A development is described in which the rollers 9, 11 change places against the disc automatically in case the train 2, 3, 4 is reversed in direction of rotation. In a modification, the intermediate movable train member is a roller between two discs. A device for storing power taken from the windmill shaft 70 when it turns too fast, and transmitting it to the disc 2 when the shaft 70 turns too slowly, is shown in Fig. 4. The disc 2 is secured to a shaft 41 in line with the shaft 70. Normally, the shaft 70 drives the disc 2 through a ratchet 69 and pawl 68. Undue high speed causes a governor 57 to thrust a clutch 44 into engagement with a loose gear 42. The shaft 41 then through train 42, 46 winds a weight 49 up on a loose drum 47. Unwinding is prevented by a pawl 52 supported by a shaft 51, gear train 54, 56, and braked disc 63. Undue low speed causes the governor to thrust a clutch member 62 against the disc 63 to carry the disc 63 clear of a braking ring 64, and to make clutch connection between the shaft 41 and a gear 56. Power then passes from the descending weight 49 through the train 54, 56, clutch 62, and shaft 41 to the disc 2, the pawl 68 overrunning the ratchet 69.
Patent GB-1142755-A (GB)
Title: Copolymers
Inventor: WORRALL ROY
IPC: C08F2/22
Filed: 1967-01-20
Abstract: 1,142,755. Polymer latex. MONSANTO CHEMICALS Ltd. 5 Dec., 1967 [20 Jan., 1967], No.3101/67. Heading C3P. [Also in Division D2] An alkaline latex is formed by polymerizing a vinyl aromatic monomer, a conjugated diolefin, and a water-soluble salt of acrylic acid or an α-substituted acrylic acid. The preferred polymer is made by polymerizing styrene, butadiene and sodium methacrylate in the presence of potassium resinate, EDTA and potassium persulphate.
Patent GB-485493-A (GB)
Title: Improvements in or relating to ceramic colouring matters
IPC: C09C1/00
Filed: 1937-02-02
Abstract: Green temperature-resisting ceramic pigments, which may be used as underglaze colours for decorating pottery, are obtained by heating to temperatures of 1100-1500 DEG  C. intimate mixtures of beryllium compounds and chromium compounds containing per mol. of beryllium oxide about 0,05 to 0,2 mols. of chromium oxide, the ignition products being ground and if necessary washed.  Beryllium oxide, hydroxide nitrate, or silicate, or beryl may be used, and chromium oxide, chromic acid, chromium nitrate or bichromates. Aluminium oxide, with or without silica, may be added to the mixtures, and for each mol. of BeO 1 mol. of a mixture of Cr2O3 and Al2O3 may be employed, the proportion of Cr2O3 being increased to 0,4 mol. if desired.  The tendency of the pigments containing alumina to change colour in artificial light may be minimized by adding oxides of tin, zirconium, titanium, arsenic, antimony, or silicon, typical compositions achieving this end comprising 3 mols. BeO, 0,4 to 0,72 mols. Al2O3, 0,12 to 2,4 mols. Cr2O3, and 0,3 to 2,5 mols. SiO2. Formation of chromate should be avoided, and such formation may be prevented by excluding oxidizing agents during ignition or by increasing the content of beryllium oxide.  Examples are given.  The Specification as open to inspection under Sect. 91, comprises also the production of pigments by calcination in any proportions of mixtures of beryllium and chromium compounds.  This subject-matter does not appear in the Specification as accepted.
Patent GB-936890-A (GB)
Title: Process for the production of hypophosphites
IPC: C01B25/16
Filed: 1961-01-26
Abstract: Alkali metal or alkaline earth metal hypophosphites are produced by reacting white phosphorus in at least 5% excess of that stoichiometrically required with aqueous solutions or suspensions of alkali metal or alkaline earth metal hydroxides containing more than 30% by weight of the metal hydroxide at a temperature of 20 DEG  to 44 DEG C., the phosphorus being used in the form of finely divided particles having a surface area of at least 1 m.2/g. and a thickness of at most 0,5 mm.  After reduction in the development of the phosphine also produced by the reaction the reaction mixture may be heated, preferably for a short time, at temperatures above the melting point of the phosphorus, e.g. between 44 DEG  and 65 DEG C. The finely divided phosphorus is preferably used in the form of a sludge or an p  aqueous suspension having a solids content of more than 10%.  The sludge may be obtained by quenching gases containing a relatively small amount of phosphorus, e.g. phosphorus furnace gases, with cold water.  The starting gases preferably contain 0,03 to 3% by weight phosphorus vapour, 5 to 98% by volume water vapour, and less than 5% of air, the oxygen to phosphorus ratio lying between 0,01 and 1.  The hydroxide used is preferably a sodium, potassium, calcium or barium hydroxide and the reaction desirably takes place in an inert gas atmosphere, e.g. nitrogen or argon.
Patent GB-434172-A (GB)
Title: Two-stroke internal combustion engine
IPC: F02B25/00
Filed: 1935-01-31
Abstract: 434,172. Two-stroke-cycle engines. BERNARD, (nee BOURNONVILLE), R., 11<bis>, Avenue du Marechal Maunoury, Paris. (Representative of BERNARD, A. L. R.) Jan. 31, 1935, No. 3157. Convention date, Feb. 9, 1934. [Class 7 (ii)] A partition 12, 17 separates the crankcasing from the adjacent part of the cylinder 1 into which air is drawn and reaches the combustion space after transference through ports 11 to the space above the annular piston 3. The partition comprises a part-cylindrical wall 12 with air-inlet ports at one side and cut away for the passage of the pump actuating linkage 4, 5; it is supported by the frame 14 or the ends of the power cylinder or power piston. The cut-away portions are bent into close relation with the adjacent ends of the cylinder or pump piston-skirt. The wall 12 supports a base 17 slotted for the passage of the connecting rod 8, and having a cup-shaped centre 20 of relatively large depth around the slot.
Patent GB-695652-A (GB)
Title: Hasp and bolt fastenings for attache and suitcases and the like
IPC: E05B65/50
Filed: 1951-02-09
Abstract: 695,652. Hasp fastenings. CHENEY & SON, Ltd., C. W., and CHENEY, C. W. Nov. 12, 1951 [Feb. 9, 1951; Feb. 21, 1951], Nos. 3161/51 and 4181/51. Class 44 A hasp fastening, e.g. for an attachÚ case comprises in the form of Figs. 1 and 2 a casing formed by a front plate 1 and back plate 2, a bolt 3 slidably mounted between the plates having a nose 3a to engage a hasp staple inserted through slots in the plates, a knob 4 fixed to the front plate and an operating lever 7 having one arm entering a slot 8 in the bolt and the other arm 9 presented for finger operation in the direction of the arrow 10 to retract the bolt. A torsion spring 11 surrounding the pivot pin 6 of the lever 7 urges the lever to the position shown and the bolt to the securing position. In the form of Fig. 4 the lever 7 is mounted at the other side of the knob 4 and arranged to be pushed inwards towards the front plate to retract the bolt. The bolt is shot by a U-shaped spring 15 bearing on a forward flange of the bolt and a fixed projection 16 on the back plate.
Patent GB-591599-A (GB)
Title: Improvements in pressure responsive apparatus for operating valves and other controldevices
IPC: B64D37/00
Filed: 1945-02-08
Abstract: 591,599. Fluidactuated valves. BENDIX AVIATION CORPORATION. Feb. 8, 1945, No. 3224. Convention date, Dec. 17. 1943. [Class 135] [Also in Groups XXVII and XXXII] Relates to pressureresponsive apparatus for operating valves and other control devices, of the kind in which a hollow flexible member is operatively connected to the control device and in which the interior of the flexible member is filled with liquid and communicates by a restricted opening with a reservoir to provide liquid damping. According to the invention the hollow flexible member is attached at one end of the reservoir and is connected at its other end to the control device, the reservoir being adjustably mounted in a support to enable adjustment of the position of the control device. In the pressure-responsive apparatus shown, for modifying the mixture supplied by the carburetter of an aircraft engine in accordance with variations of altitude, the reservoir 12 is screwthreaded into and locked by a nut 13 in the upper end of a casing 10 which is formed with a flat surface 63 for attaching the device to the carburetter. A metallic bellows 34 is secured at its upper end to an extension 30 on the bottom 28 of the reservoir and at its lower end to a plate 36 having a cylindrical part 38 which extends into the bellows and carries a valve member 40 slidable in a guide bush 44 fixed in the lower end of the casing 10. A tapered portion 50 on a valve stem 49 depending from the member 40 is adapted to coact with a valve seat 52 for controlling flow of fluid through passages. 58, 54, 56, 60, the passages 58, 60 being adapted to register with corresponding passages in the carburetter. Adjustment of the valve member relatively to the seat 52 is effected by screwing the reservoir 12 inwardly or outwardly relatively to the casing 10. The bellows and the lower part of the reservoir are filled with oil 74, 76, the space 78 above the oil level in the reservoir being filled with a gas such as nitrogen, and a restricted passage 80 is provided for flow of oil between the bellows and reservoir. By varying the size of the passage 80 and the volume of the space 78, the sensitivity of the valve movement for given pressure changes may be regulated, and by controlling the absolute pressure within the bellows and reservoir, the sensitivity of the bellows to temperature changes may be regulated. The action of the bellows may be modified by the use of spring arrangements, e.g. the spring 82 prevents collapse of the bellows on evacuation of the space 78. In a modification, the bellows actuates a valve having a profiled surface adapted to co-operate with a fixed valve member to control flow of fluid. In another construction, the reservoir extends downwardly to form an annular part surrounding the bellows so that, on inversion of the apparatus, the gas fills the annular part and the restricted passage is always covered by liquid. The apparatus may be used to control devices other than valves, e.g. switches.
Patent GB-229085-A (GB)
Title: Improvements in collars for spindle moulding machine
IPC: B27G13/12
Filed: 1924-02-08
Abstract: 229,085. Cooper, F. Feb. 8, 1924. Cutter-heads.-The blades of a moulding cutter are held radially between two collars formed with cruciform slots on their faces, four short setscrews a being arranged to bear on the upper edges of the blades. Two blades only may be used, when two longer screws b are employed. The blades may be ground on one or both faces.
Patent GB-1148343-A (GB)
Title: Improvements in vacuum regulating valves
Inventor: PARRY JOHN GERALD
IPC: G05D16/06
Filed: 1967-01-23
Abstract: 1,148,343. Valves. ALFA-LAVAL CO. Ltd. 5 Dec., 1967 [23 Jan., 1967], No. 3279/67. Addition to 1,047,292. Heading F2V. A vacuum regulating valve as described in Specification 1,047,292, has a spring-loaded valve 24 moved off its seat 23 by a push rod 33 when the piston 2 approaches its innermost position. The regulating chamber 8 which is connected to a differential pressure gauge 9 is thus vented to atmosphere through bores 29, 21 and 22.
Patent GB-1049636-A (GB)
Title: Method of manufacturing oxycellulose powder
IPC: C08B15/02
Filed: 1964-01-27
Abstract: Powdered oxycellulose is made by oxidizing a natural or a regenerated cellulose in an aqueous medium so as to introduce into the cellulose molecule from more than one atom to two hundred atoms of oxygen for every hundred anhydroglucose units.  The oxidized cellulose is removed from the aqueous medium, washed with an aqueous solution of a neutralizing agent, washed with water until free from water-soluble contaminants, introduced into a volume of water to form a suspension, mechanically disintegrated while in the form of a suspension, e.g. by means of a colloid mill, and dried as by freeze-drying or spray-drying, to convert it into a fine dry powder.  The oxidized cellulose may be subjected to acid hydrolysis while in the form of a dispersion prior to the mechanical disintegration step.  The cellulose material may be in the form of alkali cellulose and may be oxidized by passing air through it after it has been moistened with an aqueous solution of a catalyst such as sodium sulphide, hydrogen peroxide or a manganese salt.  Alternatively the cellulose material may be oxidized with an aqueous solution of an oxidizing agent such as a hypochlorite, chlorine, hydrogen peroxide, a permanganate, a chromate, a dichromate, a periodate, nitrogen peroxide or lead tetraacetate.
Patent GB-305231-A (GB)
Title: Improved process for the thermal treatment of pulverulent material
IPC: C10B47/18
Filed: 1929-02-01
Abstract: 305,231. Trocknungs-, Verschwelungs-und Vergasungs-Ges. Feb. 2, 1928, [Convention date]. Charges, conveying.-In the heat treatment of pulverulent material such as by dry distillation or in travelling hearth or rotary annular plate furnaces, the material is held against the working surface by electric adhesion. This adhesion is electrostatic, a weak charge being imparted to the working surface by a friction device such as brushes, after which the material is supplied to and caused to adhere to the surface.
Patent GB-661091-A (GB)
Title: Improvements in or relating to injectors for use in locomotives
IPC: F04F5/46
Filed: 1948-02-06
Abstract: 661,091. Steam ejectors. NATIONAL LEAD CO. Feb. 6, 1948 [Dec. 6, 1946]. No. 3515/48. Class 71. In a steam locomotive ejector comprising a body 1 having a water inlet 3 and a water suction chamber 4, a steam inlet 2 leading to a steam nozzle 5 and a combining tube 21, 22, 23 spaced from the body 1 to form an annular overflow chamber 30 open at intervals 29 to the bore of the combining tube, a vacuum chamber 26 communicates with the interior of the combining tube at the point where the steam nozzle 5 discharges into it, and with the water suction chamber 4 through a spillway 27, and the chamber 4 is in further communication with the bore of the combining tube through an annular chamber 26a discharging into the combining tube at the point of communication between the latter and the vacuum chamber 26. In operation a water inlet valve 11 is opened prior to a steam valve 7 in the manner described in Specification 652,995 thus allowing the delivery nozzle jet to open a check valve 47 leading to a delivery duct 48. On opening the valve 47 a control valve 51 secured to it allows access of pressure fluid along a duct 46 to a chamber 45 to close an overflow valve 40 leading to an overflow discharge passage. In the event of a vacuum forming in the overflow chamber 30, a relief valve 33 opens to allow flow of water from the chamber 4 to the chamber 30 for entrainment through the openings 29.
Patent GB-1183418-A (GB)
Title: Journal Box Sealing Devices
Inventor: PAPENGUTH RICHARD PALEN
IPC: B61F15/22
Filed: 1968-01-23
Abstract: 1,183,418. Bearings. PARKER-HANNIFIN CORP. 23 Jan., 1968, No. 3532/68. Heading F2A. A journal box 10 for a railway vehicle axle 17, has a sealing device 27 mounted in a vertical slot 13 which is formed by means of walls 11, 12, the latter having openings 15, 16 respectively through which the axle 17 extends. The sealing device 27 comprises a plate 28, of wood for example, having a resilient member 32 attached thereto. The member 32 has a portion 33 at one side of the plate 28 and a portion 34 at the other side, the portions 33, 34 having annular ribs 35, 36 respectively which engage the walls 12, 11. The member 32 is also provided with a rib 44 which encircles the upper portion of the plate 28 and seals the upper end of the slot 13; and with a cylindrical extension 37 that enters the opening 16 in the wall 12, the extension 37 having a thin flange 38 which, when the axle 17 is in position, is deflected and forms a lip 40. The thickest portion of the extension 37 is adjacent the flange 38 so as to provide maximum support therefor. A radially inner surface 41 of the member 32 is tapered so as to obtain a thin portion which facilitates the bending of the extension 37 when the sealing device is inserted into or withdrawn from the slot 13 and ensures that the free end of the lip 40 remains out of contact with the surface 41 when the axle 17 is radially deflected as shown in the lower part of Fig. 4. The sealing device 27 may have an integral plate 28 of the same material as the part 32, which material may be unicellular, closed cells 53, Fig. 5, of which contain gas and open cells of which contain lubricant.
Patent GB-305240-A (GB)
Title: Improvements in and relating to resilient wheels
IPC: F16D3/56
Filed: 1929-02-02
Abstract: 305,240. British Thomson-Houston Co., Ltd., (Assignees of Lewis, J. 0.). Feb. 2, 1928, [Convention date]. Flexible gear-wheels. -In flexible gear and other wheels, radial blade springs 12 each of one or more leaves are arranged on opposite sides of a spacing - member 13 with an enlarged centre 13a, the springs being initially stressed to engage abutments 16, 17 on the hub 10 and abutments 15 on the rim 11. The springs are normally spaced at their outer ends and may be spaced at their inner ends. Relative rotation between the parts 10, 11 stresses all the springs. As shown in Fig. 2, pairs of springs 12 are arranged in recesses 18 on either side of a flange 18b on the hub, plates 20, secured to the flange 18<b> and engaging the sides of the rim sectors 11<a>, 11<b>, maintaining axial position of the parts.