baber/WOPTO huggingface dataset:
Patent GB-857008-A (GB)
Title: An actuating device for a gear-changing mechanism with preselector
IPC: F16H29/08
Filed: 1958-04-30
Abstract: 857,008. Change-speed control. ZAVODY 9. KVETNA NARODNI PODNIK. April 30, 1958 [May 3, 1957], No. 13747/58. Class 80 (2). [Also in Group XXXI]  A gear-changing mechanism, for a motor cycle or scooter having a gear-box providing four forward speeds, comprises a twist grip 36 for preselecting a gear and a lever 40 for disengaging the main driving clutch and establishing the gear ratio. Grip 36 is operatively connected to a plate 10 pivoted at 11 and having cam slots engaging pins 8, 9 of sleeves 6, 7 which are loosely mounted on a gear change shaft 1. Pins 8, 9 also co-operate with slots in a stationary plate 12. Sleeves 6, 7 are disposed within forked mountings of selector members 3, 4 having suitably shaped slots 16, 17 co-operating with shift forks 18, 19 of the gear change mechanism. Lever 40 is either mounted on the twist grip and rotatable therewith, or is mounted on the handle-bar, and is connected by a cable 39 to a bell-crank lever 38 having an arm 42 formed with a cam surface actuating a follower 43 for disengaging the clutch. Bell-crank 38 also has a lost-motion connection with the shaft 1 such with on actuating lever 40 the clutch is disengaged before the lost-motion is taken up and shaft 1 rotated. The shift forks have sleeves 20, 21 provided with pins 29, 30 co-operating with circumferential grooves 22-27 and a longitudinal groove 28 in the shaft 1. In operation, twist grip 36 is rotated to an appropriate position to preselect a gear, thereby rotating the cam plate 10 and through pins 8, 9 and sleeves 6, 7 moving the selector members 3, 4 axially of shaft 1. When lever 40 is actuated, the clutch is disengaged and shaft 1 rotated to bring groove 28 into register with pins 29, 30. Rotation of shaft 1 also, by means of keys 5, results in the rotation of the selector members 3, 4. During this rotation the shift forks are shifted axially of the shaft 1 by the edges of the slots 16, 17 as the ends 16a, 17a of the slots are moved towards the forks, groove 28 being of sufficient width to permit this. The appropriate gear is thus engaged. When lever 40 is released the bell-crank lever is returned to its initial position by a spring 31 so that the clutch is engaged, groove 28 is moved out of register with pins 29, 30 so that the shift forks are retained in position axially of the shaft 1 by the appropriate circumferential grooves, and the selector members are rotated to their initial position in which the shift forks are located in wide parts of the slots 16, 17.
Patent GB-250520-A (GB)
Title: Improvements in or relating to the purification of hydrogen
IPC: C01B3/02
Filed: 1925-05-26
Abstract: 250,520. Soc. l'Air Liquide, Soc. Anon. pour l'Etude et l'Exploitation des ProcÚdÚs G. Claude. April 9, 1925, [Convention date]. Addition to 238,175. Separating gases by liquefaction.- Liquid air is substituted for the liquid nitrogen employed in the purification of the hydrogen for use in the manufacture of ammonia. The oxygen and any oxygen compound formed are removed before the synthesis of the nitrogen hydrogen mixture.
Patent GB-1377846-A (GB)
Title: Sheet or card arrangments
IPC: G06K13/06
Filed: 1972-03-24
Abstract: 1377846 Card reader SANKYO SEIKI SEISAKUSHO KK 24 March 1972 [25 March 1971 16 Sept 1971 26 Sept 1971] 13807/72 Heading B8R [Also in Division G4] A record card reader (e.g. for information cards, identification cards, drivers licences, season tickets) has a pinch roller 24 and a capstan roller 8 between which the card is drawn, the roller 8 having an obliquely inclined edge so that the card is held against a guide edge 21 while passing through the reader. The data on the cards can be read out electrically, optically or magnetically by adjustable unit 4. A card passageway is defined between frame members 1, 2, which are screwed together. The roller 8 is connected by way of a gear train 14 to an electric motor 13 actuated by switch 31 on insertion of the card and an adjustable spring loaded roller is provided for pressing the card against the unit 4. The oblique surface of roller 8 is of a soft resilient plastics material which, when a card is present, deforms as shown in Fig. 6 to press the card against edge 21. When the care is not there the tip of roller 8 lies in a relief groove 25 in roller 24. Alternatively roller 24 can taper (Fig. 4, not shown). In either case the tip of roller 8 just touches roller 24.
Patent GB-1516851-A (GB)
Title: Mine roof supports
IPC: E21D23/06
Filed: 1975-04-04
Abstract: 1516851 Mine roof support GULLICK DOBSON Ltd 10 Feb 1976 [4 April 1975] 13812/75 Heading E1P A roof bar for a mine roof support having a prop 12 to engage and support the roof bar, comprises a rigid part 10 engaging the prop 12, and a roof engaging part 20 positioned over and resiliently urged away from the rigid part, the underlying rigid part being selectively relieved to accommodate foreign matter that would otherwise obstruct the maximum depression of the part 20. The rigid part 10 has a roof engaging face 19 and a recessed face 14, the roof engaging part 20 comprising one or more spring steel bars positioned over the recessed face 14 so as to contact it when all thereof engaging parts are level. This enables a mine roof with a step S to be supported, the roof bar becoming rigid when the roof is level.
Patent GB-403009-A (GB)
Title: Process for boiling out or kier-boiling cotton fibres
IPC: D06L1/18
Filed: 1933-05-12
Abstract: Cotton fibres are boiled in a lye which contains no organic solvent but contains, besides an alkali, an adsorptive inorganic substance other than a metal hydroxide, and a wetting or washing agent, e.g. an alkylated naphthalenesulphonic acid or a substance obtainable by the processes of Specifications 341,053, 343,524, 343,899, 366,916, and 372,005.  In examples: (1) cotton goods are boiled under pressure in a bucking kier in a lye containing caustic soda, fuller's earth and the sodium salt of the condensation product of oleic acid chloride and phenyltaurine; (2) cotton goods are boiled in a bucking kier in a lye containing caustic soda, water-glass and an alkylated naphthalenesulphonic acid; (3) cotton piece goods are boiled in the jigger in a lye containing calcined sodium carbonate, the oleic acid ester of sodium hydroxyethanesulphonate and silicic acid gel; (4) cotton goods are boiled in a kier in a lye containing caustic soda, silicic acid gel and the sodium salt of the reaction product of oleic acid chloride and methyltaurine; (5) cotton piece goods are boiled in the jigger in a lye containing calcined sodium carbonate, water-glass and the sodium salt of the reaction product of the acid chloride of palm-nut oil and taurine.
Patent GB-388000-A (GB)
Title: Improvements relating to submarines and the like
IPC: B63G8/41
Filed: 1931-05-11
Abstract: 388,000. Buoyant life-saving chambers. KLOPOTOWSKI, L., Rue du Montparnasse, Paris. May 11, 1931, No. 13874. Convention date, May 10, 1930. Void [Published under Sect. 91 of the Acts]. [Class 68 (i).] In a submarine escape apparatus a buoy g is normally housed in a holder d located between the superstructure and the strength hull and provided with rollers f at the lip. The buoy is connected with the vessel by a cable running from a winch m to a roller n in the submarine through the tube h<1>. The device for releasing the buoy comprises a mushroom head h2, the sliding shank of which is loaded by a spring i<2> whilst the head is grasped by hooks h<3> which may be released by upward movement of the screw l<3> on operation of the hand-wheel l.
Patent GB-774979-A (GB)
Title: Improvements in or relating to methods of forming electrical terminals on a terminalboard or strip
IPC: H05K7/06
Filed: 1954-05-12
Abstract: 774,979. Binding-posts; supports for circuit components. GENERAL ELECTRIC CO., Ltd., CORNELL, W., and SHEPHERD, S. A. May 4, 1955 [May 12, 1954], No. 13900/54. Class 38 (1). Terminals are provided on an insulating strip 1 forming part of a mounting structure as described in Specification 774,978 by providing a wire, which may be the terminal of a wire-ended component, with at least one loop 15 and inserting the loop through a hole in the strip so that a part of the loop projects beyond the strip to form a terminal, the loop or loops 15 then being twisted through 90 degrees as shown in Fig. 9 to retain them in the holes.
Patent GB-742298-A (GB)
Title: Improvements in or relating to amine derivatives
Inventor: OLIN STEPHEN MUNRO
IPC: C07D295/03
Filed: 1953-05-19
Abstract: The invention comprises free bases and their acid addition salts, the bases having the general formula <FORM:0742298/IV(a)/1> wherein R1, R2 and R3 are alkyl radicals, R4 and R5 represent hydrogen or alkyl radicals and NZ is a heterocyclic radical.  Such bases are obtained by reacting the appropriately substituted 1 - chloro - 3,3 - dialkylalkane with the base HNZ, either in a closed vessel or in solution in, for example, glycol or xylene.  Starting materials of the formula R1R2R3C.CH2CH2Cl can be prepared by reacting ethylene with a tertiary alkyl halide of formula R1R2R3CCl.  In example (1) 1-(3,3-dimethylbutyl)pyrrolidine is prepared by heating 3,3-dimethyl-1-chlorobutane with pyrrolidine.  In a similar manner are prepared; (2) 4-(3,3-dimethylbutyl)morpholine; (3) 1 - (3,3 - dimethylbutyl)piperidine which are converted to their hydrochlorides. In further examples there are prepared (4) 4-(1,1,3,3-tetramethylbutyl)morpholine by reacting 2 - amino - 2,4,4 - trimethylpentane and bis(2 - chloroethyl)ether in propanol; (5) 1-(1,1,3,3 - tetramethylbutyl) - 2 - methylpyrrolidine by reacting 2-amino-2,4,4-trimethylpentane and 1,4-dibromopentane; and (8) 1(1,1,3,3 - tetramethylbutyl)piperidine by reacting 2 - amino - 2,4,4 - trimethylpentane and 1,5-dibromopentane, which are then converted to hydrochlorides.  Other salts mentioned are the hydrobromide, sulphate, phosphate, tartrate and citrate.
Patent GB-736559-A (GB)
Title: Improvements in or relating to machines for trimming hedges, banks, ditches and the like
IPC: A01G3/053
Filed: 1953-05-19
Abstract: 736,559. Hedge-cutters; mowing-machines. BAKER & HUNT, Ltd. March 1, 1954 [May 19, 1953], No. 14050/53. Classes 6 (2) and 6 (3). In a machine for trimming hedges, banks, ditches, or the like having the cutter bar pivotally mounted on the operating arm on an axis perpendicular to its length, the bar and arm are secured together by means of a pin screwed into one of them and passing through an arcuate slot concentric with the cutter-bar pivot, being secured in adjusted position by a nut engaging a second screw thread on the pin, the two screw threads being of opposite hand. The operating- arm is in the form of a tube 10 through which passes a shaft 12 driving, through bevel gearing 13, 14, a crankshaft 15 operating the reciprocable part of the cutter bar 22. The lower end of the arm 10 is formed as a fork 11, one leg 17 of which supports the cutter bar so that it can rotate about the axis of the crankshaft. A bracket 19 on the cutter bar is formed with a slot 31 subtending an angle of about 270 degrees at the crankshaft axis. A pin 28 passes through the leg 16 of the fork 11, screws into a hole in the other leg by means of a screw thread 29 and is formed with a reduced end carrying a screw thread of opposite hand to the thread 29 and passing through the slot 31, being secured in place by a nut 33 having projections passing into the slot 31 to prevent unintentional rotation.
Patent GB-234830-A (GB)
Title: Improvements in process for producing aluminium oxide or products containing aluminium oxide
IPC: C01F7/40
Filed: 1925-05-28
Abstract: In the extraction of alumina from materials containing it such as bauxite by the process in which the raw material is fused in an electric furnace with reducing agents and a sulphide or a material which yields a sulphide, and the alumina is obtained in a sulphide melt containing for instance sulphide of aluminium, barium, calcium or magnesium, the raw material is subjected to a preliminary treatment for the conversion of its iron content into ferrous sulphide before the electric furnace process.  The iron is first reduced to the ferrous or to the metallic condition, for instance by a solid or gaseous reducing agent, and the material is then treated with a sulphur-containing agent such as sulphur vapour, sulphuretted hydrogen, carbon oxysulphide, carbon disulphide, iron pyrites to convert the iron into sulphide.  When a solid agent is used, it may be briquetted with the raw material and the solid reducing agent if such is used.  The process may be effected in a shaft furnace, a reducing atmosphere being maintained below the preliminary heating zone, the sulphur-containing gas being preferably admitted at the zone where the reduction is complete.  Alternatively, three rotary furnaces may be employed, the preheating being affected in the first, the reduction in the second, and the sulphur treatment in the third; or two rotary furnaces may be employed, the reduction and sulphur treatment being effected in the second.  The reduction furnace may be heated electrically and if desired, by a pulverized fuel burner.  The furnace employed may be arranged in association with the electric furnace in which the fusion is to be effected; or when using pyrites or the like as the sulphur material, the bauxite may be first reduced in a separate furnace and the reduced product is then made into briquettes with reducing agents and pyrites or other suitable sulphide or sulphide ore and charged into the electrical furnace, in which case the iron is converted into sulphide in the upper part of the furnace before the charge melts.  Preferably an excess of reducing agent is employed for the preliminary reduction so that some is left for the electric furnace reaction.  The briquettes may be formed by the aid of binding-agents such as tar, lime, clay, lignite, or peat, and "mellowing" means such as sawdust and charcoal may also be added.  When the sulphide-oxide melt finally obtained is so treated as to liberate sulphuretted hydrogen, this gas may be used as the reagent for sulphidizing the iron in the raw material.  The Specification as open to inspection under Sect. 91 (3) (a) states that when the furnace is used in association with the electric furnace in which the fusion is to be effected, the p  sulphuretted hydrogen may serve to cool the roof of the electric furnace.  This subject-matter does not appear in the Specification as accepted.
Patent GB-406163-A (GB)
Title: Improvements in or relating to machines for engraving cylinders to be used to obtainfilms with refringent elements
IPC: B44B3/04
Filed: 1933-05-15
Abstract: 406,163. Colour photography. RODDE, A., HERAULT, A. H., 6, Rue Philippe de Girard, Paris, HUDELEY, V., 50, Boulevard Victor Hugo, Clichy, and LAGRAVE, J., 147, Avenue de Clichy, Paris, both in France. May 15, 1933, No. 14065. Convention date, April 11. [A Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 14, 1933.] Drawings to Specification. [Class 98 (ii).] A precision lathe is described for engraving cylinders to be used in forming lenticular elements on photographic films. The Specification as open to inspection under Sect. 91 on Nov. 14, 1933 comprised the following additional subject-matter :-The grooves are polished by dulling the cutting-tool and repeating the engraving operation with a polishing powder under a very light pressure ; alternatively, a special dulled tool may be employed in one or more polishing stages. This subject-matter does not appear in the Specification as accepted.
Patent GB-996983-A (GB)
Title: Improvements in and relating to piezoresistive semiconductor strain gauges
IPC: H01L29/84
Filed: 1962-04-12
Abstract: 996,983. Strain gauges. WESTERN ELECTRIC CO. Inc. April 12, 1962 [April 25, 1961(2)], No. 14120/62. Heading G1N. [Also in Division H1] Measurements of stress-induced resistance changes in a piezoresistive semi-conductor strain gauge in the form of a wafer are made in a direction substantially normal to the plane of the wafer. Wafer 10, preferably has a minimum planar dimension at least ten times the gauge thickness. The minimum electrode dimension is also preferably at least twice the wafer thickness to ensure current flow substantially normal to the plane of the wafer. If the test body 11 to which the wafer is affixed is conductive a second electrode 15 may be attached to body 11; otherwise a thin insulating spacer 30 with a conductive region 31 may be in serted between the wafer and body 11. If the wafer is cut so that direction 3 is the 110 direction the resistivity changes are a function of the stress components in the 111 and 112 directions and of the shear stress in the plane of the wafer. If direction 3 is the 110 direction the output is a function of the stress in the 110 direction only. If direction 3 is the 001 or 111 direction the output is a function of the sum of the principal stresses in the plane of the wafer. The gauge may be connected in a bridge circuit.
Patent GB-277068-A (GB)
Title: Improvements in or relating to motor propelled road vehicles
IPC: B62D55/02
Filed: 1926-06-04
Abstract: 277,068. Dawson, Sir A. T., and Buckham, Sir G. T. June, 4, 1926. Endless-track vehicles.-In a motor vehicle of the kind having endless-tracks and road wheels for alternative use, and power-operated mechanism for converting it from an endless-track vehicle to a wheeled vehicle and vice versa, the converting mechanism is driven positively from the front part D of the propeller shaft and the main clutch A<1> is used for transmitting the drive from the engine through the ordinary gear-box C to the converting mechanism and for disconnecting the drive at the end of the converting operation. In the construction shown the front part D of the propeller shaft is driven from the gear-box C and is connected by a dog clutch d either to the rear part D' of the propeller shaft or to a chain-wheel d<3x> driving the converting gear. Specifications 265,670, 277,062, 277,063, 277,064, 277.066 and 277,067 are referred to.
Patent GB-551878-A (GB)
Title: Improved resinous moulding compositions
IPC: C08F2/44
Filed: 1941-07-23
Abstract: 551,878. Moulding compositions. DU PONT DE NEMOURS & CO., E. I. July 23, 1941, No. 14180/42. Convention date, July 23, 1940. Divided out of 550,871. [Class 2 (iii)] Lubricated moulding compositions are produced by dispersing one or more ethenoid monomers (i.e. containing the group CH2  2 = C<), in water containing a dispersing agent, initiating polymerization and adding during " the peak period of the polymerization " one or more di- or tri-esters of phosphoric acid with saturated aliphatic alcohols containing from 12 to 18 carbon atoms inclusive. The preferred proportions of ester are up to 2 per cent. by weight of the monomer(s) and it is preferred to use the disubstituted esters, e.g. dilauryl phosphate. " The peak period of polymerization during the process of dispersion polymerization is the time during which the temperature of the reaction mix rises abruptly to a maximum and drops just as rapidly to its initial level. Specified ethenoid monomers are methyl methacrylate, vinyl acetate and other esters, styrene and its derivatives and other esters of acrylic and methacrylic acids. These monomers may be used alone or as mixtures. Plasticizers may be added to the polymerization reaction and the granular polymer' may be compounded with auxiliary ingredients, i.e. colours. In examples the aqueous vehicle contains mono- and disodium phosphates and a partially neutralized polymethacrylic acid solution as granulating agent. Monomeric methyl methacrylate alone in (1) or with vinyl acetate (2), styrene (3), is polymerized in dispersion with benzoyl peroxide and at " the peak period " dilauryl phosphate (dimyristyl phosphate in (2) and distearyl phosphate in (3) ) is added.
Patent GB-675268-A (GB)
Title: Improvements in d.c. amplifying systems
IPC: H03F3/36
Filed: 1948-05-26
Abstract: 675,268. Valve amplifying circuits. BRITISH THOMSON-HOUSTON CO., Ltd., and MACKENZIE, T. H. June 1, 1949 [May 26, 1948], No. 14226/48. Class 40 (vi). A D.C. amplifier of the type in which appropriate fractions of input and output voltages are combined in a resistor network and the combination fed to the input electrode of the first valve of the amplifier, the negative feedback serving to correct the scale error of the amplifier, is provided with an auxiliary D.C. amplifier in the connection between the resistor network and the input electrode which serves to correct any tendency of the zero point of the main amplifier to depart from zero. As shown the main amplifier comprises valves V1 and V2 coupled by a battery 14 and with a feed-back connection leading to resistors 7 and 8. Connected to the junction of these resistors is an auxiliary amplifier 16 utilizing two synchronized switches 22 and 23 to convert the input to valve 16 to A.C. and reconvert its output to D.C. The latter is connected to the input electrode of valve V1. A condenser 9 is interposed between this point and the main point 5 for the whole apparatus. The output appears across resistance 4 at terminal 3. Specification 622,491 is referred to.
Patent GB-1133504-A (GB)
Title: Improvements in bridge-type fluid circuit
IPC: F15C1/16
Filed: 1966-03-31
Abstract: 1,133,504. Fluid-pressure servomotor systems; pure fluid amplifiers. GENERAL ELECTRIC CO. March 31, 1966 [April 30, 1965], No.14232/66. Headings G3H and G3P. A bridge type fluid amplifier comprises four fluid passages 10, 11, 12, 13 connected at junctures 14, 15, 16, 17. A fluid supply is connected to juncture 14, juncture 15 is connected to exhaust and the opposite ends of a piston-cylinder load device 30 is connected to junctures 16, 17. Restrictions 18, 19 are arranged in the passages 10 and 11 while variable flow restrictions in the form of vortex amplifiers 20, 21 are arranged in the passages 12, 13. Control signals are fed from a logic device 31 to control the flow in the vortex chambers and thus the back pressure whereby differences in the control signals are amplified to move the load. The vortex chambers may be in the passages 10, 11 or in all four passages. The input signal may be in response to position, speed, load distribution, pressure, vehicle attitude or temperature while the actuator 30 may be a rotary actuator.
Patent GB-739009-A (GB)
Title: Improvements in or relating to the drying of electric accumulator electrodes
IPC: H01M4/23
Filed: 1953-05-20
Abstract: 739,009. Drying electric accumulator electrodes by displacement of water by another liquid. AKTIEBOLAGET TUDOR. May 20, 1953 [May 21, 1952], No. 14234/53. Class 34 (2). In a method of drying an accumulator electrode after electroforming the electrode is contacted with a liquid not capable of dissolving water, having a higher boiling point than water at the treatment pressure and which is at a temperature between its boiling point and that of water which treatment liquid dipsplaces the water and is itself removed by means of hot air or other gas. The apparatus has two vessels 1, 2 with insulation 5 and insulated lids 3, 4 and having supports 6, 7 on which the electrodes 8, 9 are hung. The vessels are inconnected by pipes 10, 11 having branch tubes 12, 13 connected to a pump 14 and either side of tubes 12, 13 are cut-off valves 15, 16, 17, 18. A further branch tube 19 with valve 20 connects tube 12 with a compressor or blower. Heating tubes 22, 23 in vessels 1, 2 heat the treatment liquid and the vessels communicate with condensers 24 (only one shown) through tubes 25, 26. A cooling agent flows through the double walls of the condenser and condensed vapour is collected in a chamber 29 and returned to the vessels 1, 2 via tubes 30, 31. Water in the condenser is drawn off through pipe 32. A light hydrocarbon such as petrol, kerosene or nitrobenzol is used as treatment liquid and a thin layer is left on the electrodes, by interruption of the final drying, to protect the plates against oxidation during storage or a soluble substance such as paraffin oil, castor, yolk or the like added to the treatment fluid.