baber/WOPTO huggingface dataset:
Patent GB-411261-A (GB)
Title: A positive auxiliary gear to accelerate vehicles from a state of rest or low speed
IPC: B60K17/04
Filed: 1933-03-25
Abstract: 411,261. Variable - speed gearing. KENT, A. F., Lee Moor, Cornwood, Devon. March 25, 1933, No. 9026. [Class 80 (ii).] A vehicle is accelerated from rest by winding strips or cables e from deep-flanged drums b, clutched to the rear wheels c, to drums a on a cross-shaft w, a steadily increasing gear ratio being obtained as the strips pile up on the drums a. The cross shaft w is driven from a helical gear r on the cardan shaft d behind the gear-box u of the vehicle. During acceleration a clutch v is arranged to disconnect the propeller shaft y from the shaft d and connect in its place the helical gear r. When the strip e has wound on to the drum a to such an extent that the shafts d, y are synchronized, a roller i, Fig. 3, engaging the piling strip on a drum a rotates the lever h about its pivot k thus operating a lever n, which by mechanism not described declutches the drums b from the rear wheels and throws over the clutch v so as to disengage the helical gear r and reconnect the two parts d, y of the driving shaft. Rewinding springs are fitted to the drums b, a brake p, Fig. 2, being lightly applied to the drums a to keep the cable taut. The brake is brought into action by a roller il, which slides to the other end of the slot q during rewinding. The thickness of the strip may be varied to vary the acceleration. The end of the strip is secured to the drum b so as to detach itself if overwound. To preserve concentricity, the drum may be stepped as shown in Fig. 3 to the depth of the cable or a tapered strip may be secured to the underside of the cable.
Patent GB-696605-A (GB)
Title: Improvements relating to fuel compositions for the operation of two-stroke engines
IPC: F01M9/02
Filed: 1951-04-19
Abstract: A fuel for a two-stroke engine especially a bicycle auxiliary engine, consists of motor gasoline, hydrocarbon lubricating oil and an oxidant chosen from picric acid, ethyl nitrate and methyl nitrate. The oxidant may be mixed with the lubricating oil and the mixture then added to the gasoline.
Patent GB-435477-A (GB)
Title: Improvements in or relating to the dyeing of leather
IPC: D06P3/32
Filed: 1934-03-23
Abstract: Disazo dyes; acid wool and mordant dyes, dyeing with.--Chrome or vegetable tanned leather is dyed by applying thereto a disazo dye obtained by coupling with resorcinol either diazotized aminosalicylic acid or diazotized picramic acid and coupling the monoazo product with either diazotized aminosalicylic acid or diazotized picramic acid.  In an example, chrome calf leather is tumbled in a dyeing drum with an aqueous solution of sodium bicarbonate at about 55 DEG  C. until neutral to litmus, an aqueous solution of the dyestuff, aminosalicylic acid (2 mols.) \sQ resorcinol, is added, the tumbling is continued for 20 minutes, an aqueous solution of commercial formic acid is added and tumbling is continued for a further 30 minutes; the leather, thus dyed a full level yellowish brown, is fat-liquored and dried.  The dyestuff may be replaced by aminosalicylic acid --> resorcinol \sM picramic acid or by picramic acid (2 mols) \sQ resorcinol.  The Specification as open to inspection under Sect. 91 comprises also the use of the above diazo components substituted, e.g. by halogen or by one or more alkyl, alkoxy, hydroxy, nitro, carboxylic or sulphonic groups and the use of resorcinol substituted, e.g. by halogen or by one or more alkyl, alkoxy, hydroxy, nitro or sulphonic groups.  This subject-matter does not appear in the Specification as accepted.
Patent GB-693792-A (GB)
Title: Improvements in or relating to the stabilization of tetrachloroethylene
IPC: C07C17/42
Filed: 1951-04-19
Abstract: Tetrachloroethylene is stabilized by the addition of lower nitroalkanes or chloro derivatives thereof, optionally with pre-treatment to remove some impurities.  Examples describe the stabilization of samples of tetrachloroethylene, obtained by fractional distillation of a mixture of chlorinated products and with or without pre-treatment with caustic soda, and aniline, with 1-nitropropane, nitroethane, nitromethane, 2-chloro-2-nitropropane and 1-chloro-1-nitroethane; 2-nitropropane and 1-chloro-1-nitropropane are also specified.
Patent GB-565698-A (GB)
Title: Process of laminating rubber hydrochloride films
Filed: 1942-07-03
Abstract: 565,698. Rubber hydrochloride films. WINGFOOT CORPORATION. July 3, 1942, No. 9233. Convention date, Jan. 9. [Class 70] In laminating plies of rubber hydrochloride, those plies which are not readily stretchable at room temperature are heated so as to give them elastic properties before passing them to the laminating device. The lamination is effected by passing films from rolls 5, 6, 7 between a rubber roller 9 and a heated drum 8. Brakes 12 cause a drag on the films to stretch them longitudinally and prevent bagging and wrinkling. Heating is necessary for films containing no elasticiser and those containing less than 5 per cent of butyl stearate or other elasticiser. The heating may be effected by passing the film continuously through an oven or over heated drums or by placing a roll of film in an oven or other heated chamber, for example, a film containing 2¢ per cent of butyl stearate may be stored for 5 hours at 150 F. Reference has been directed by the Comptroller to Specification 514,560.
Patent GB-1176022-A (GB)
Title: A Cross-Bar Distributor.
IPC: H04Q1/14
Filed: 1967-02-27
Abstract: 1,176,022. Plug boards. SIEMENS AG. 27 Feb., 1967 [26 Feb., 1966], No. 9259/67. Heading H2E. In a cross-bar distributor comprising crossed sets of contact strips 2 and 3 carried on opposite faces of an insulating plate 1, at least one contact set takes the form of a parallel array of circular wires located in individual grooves in the plate. In a first embodiment, Fig. 3 (and Figs. 1 and 2, not shown), both contact sets take this form, whereas in a second embodiment (Figs. 4-6, not.shown) only one contact set takes this form, the other set comprising a metal stamping (15) cut to provide the desired circuitry pattern. In both embodiments the wires may be secured in their grooves by heat deformation of the plate 1, which is of a thermoplastic material, and the plate has contactreceiving apertures (6) at the cross-over points of the contact sets 2 and 3. Connections between selected contacts 2 and 3 may be made by resilient U-shaped prongs (20, Fig. 8, not shown) releasably inserted in the apertures (6) to straddle the contacts. Upstanding resilient contact blades 11 may be secured to selected wires or circuit strips 2 for receiving electric components such as lampholders or fuses, and recesses 14 may be formed in the plate 1 for receiving multi-pin plugs whose pins intermesh with wires or circuit strips 2. Selected contacts 2 and 3 may be permanently interconnected by spheres or cylinders 10 located in apertures (6) and secured to the contacts by soldering or welding. In the second embodiment circuit strips 2 terminate in flat blades (18) at the edge of the plate 1 for receiving external connections.
Patent GB-403096-A (GB)
Title: The preparation of a naturally occurring enzyme and its application to industrial arts
IPC: C12N9/88
Filed: 1932-04-01
Abstract: An enzyme obtained from blood is used to accelerate reactions in which carbonic acid and carbonates are involved.  As examples, the enzyme is employed in accelerating the liberation of carbonic acid from the reaction of weak acid solutions such as a mixture of alkali and KH2PO4 on sodium bicarbonate and acetic acid and sodium acetate mixture on calcium carbonate, in accelerating the uptake of CO2 in the ammonia-soda process where the concentration of alkali and brine are insufficient to affect the action of the enzyme, as when the full concentration of brine is not developed until after the uptake of CO2 and in the manufacture of ammonium carbamate, carbonate and bicarbonate, in the further treatment of ammonium carbonate in the synthetic ammonia industry to produce ammonium sulphate by reaction with calcium sulphate, in the conversion of sodium and calcium carbonates into bicarbonates, the manufacture of potassium carbonate from magnesium carbonate and potassium chloride, and finally, in the determination of end-points in volumetric determinations in which it is required to determine the proportions of carbonate and bicarbonate in alkali manufacture for the control of the process and the estimation of CO2 in water.  Graphs illustrating the acceleration of reactions by enzyme, are provided.ALSO:An enzyme which catalyzes reactions in which carbonic acid or carbonates are involved, is obtained by centrifuging slaughterhouse blood, separating the red corpuscles, washing these by centrifuging with isotonic saline if desired, precipitating the haemoglobin with chloroform and removing this, when the remaining supernatant liquid contains 50--60 per cent of the total enzyme and separating the latter as a crude or pure solid product by evaporation, preceded, if desired by ultrafiltration.  The product may also be obtained purer by including a treatment with tricalcium phosphate or Willstätters C-g  alumina cream as adsorbent to the ultrafiltrate.  The enzyme may be used to accelerate the liberation of carbon dioxide in reactions in which weak acids react with carbonates etc. as in the action of a weak acid solution of KH2PO4 and caustic soda on sodium bicarbonate, and acetic acid and sodium acetate mixture on calcium carbonate, and to accelerate the uptake of carbon dioxide as in the ammonia-soda process, where the concentration of alkali and brine is low enough not to injure the enzyme, in the manufacture of ammonium carbamate carbonate and bicarbonate, and in the treatment of ammonium carbonate in the synthetic ammonia industry, and conversion of the latter to sulphate in the conversion of carbonates into bicarbonates, and lastly in the hastening of end-point determinations in the control of commercial processes such as the determination of the proportions of carbonate and dicarbonate in mixtures of the two and with alkali and the determination of CO2 in water.
Patent GB-385934-A (GB)
Title: Process for the production of alloys capable of being forged and hardened
IPC: B03B5/56
Filed: 1931-03-28
Abstract: Steel alloys, for use as high-speed steels and for making knives, files, drawing nozzles, &c. are low in carbon and contain 5-35 per cent of tungsten and 5-50 per cent of cobalt, and are quenched from high temperatures and annealed at lower temperatures.  The tungsten may be wholly or partly replaced by molybdenum, and the cobalt by chromium, molybdenum, manganese, nickel, silicon, aluminium, vanadium, copper, uranium, zirconium, beryllium, or titanium.  An example contains 15 per cent of tungsten, 30 per cent of cobalt, 0,80 per cent of carbon, 0,1 per cent of silicon, and 0,6 per cent of manganese, and is quenched in oil at 1250 DEG  C. and annealed at 650 DEG  C. for one hour.
Patent GB-316633-A (GB)
Title: Lay actuating mechanism for mechanical looms
IPC: D03D49/60
Filed: 1928-03-29
Abstract: 316,633. Neugebauer, R. March 29, 1928. Beat-up motions.-In layactuating mechanism for looms in which the crank shaft is driven through chain and eccentric sprocket gearing, two sprocket wheels 12, having different eccentricities and, or, numbers of teeth, are combined in a single wheel having recesses at its ends, so that the sprocket being used can be moved over the boss of the adjacent flywheel 9<1>. The driving sprocket may be mounted on the shaft of an electric motor.
Patent GB-550081-A (GB)
Title: Improvements in and relating to high frequency electronic apparatus
IPC: H01J25/52
Filed: 1941-07-28
Abstract: 550,081. Magnetrons. BRITISH THOMSONHOUSTON CO., Ltd. July 28, 1941, No. 9580. Convention date, July 27, 1940. [Class 39 (i)] In a magnetron producing oscillations of high order the anode comprises eight radially directed vanes 73 arranged cylindrically. The vanes are each the length of a half-wave of the desired oscillation and are surrounded by a sheath 77 and closed at each end by metallic discs 74, 75 so as to form a closed resonant chamber ; an opening 78 is left between one pair of vanes through which radiation can pass. The filamentary cathode 71 is tensioned by a spring 14. The electrons may be supplied from an indirectly-heated cathode at one end. A known form is described in which the vanes are not enclosed and are conductively connected at each end by rings ; a close metallic resonator surrounds the device and is tuned to assist the oscillations in the rotating space charge. A circular loop surrounding the device coaxially takes off power through a concentric line. The Specification as open to inspection under Sect. 91 comprises also a form in which the vanes are bridged by a conductive ring in the centre. In a form in which the electrons are supplied from one end, pairs of horn-like members at anode and cathode potential are provided at each end to give the desired concentration of space charge within the anode. This subjectmatter does not appear in the Specification as accepted.
Patent GB-659450-A (GB)
Title: Improvements in electrical valve oscillators
IPC: H03B5/26
Filed: 1949-04-08
Abstract: 659,450. Valve generating circuits. PHILIPS ELECTRICAL, Ltd. April 8, 1949, No. 9614. Convention date, April 12, 1948. [Class 40 (vi)] In an R.C. or R.L. oscillator of adjustable frequency an additional fine control is provided which adjusts the frequency by a given percentage which is independent of the setting of the main adjustment and which does not vary the amplitude of the output. The invention relates to oscillators having a frequency determining feed-back network comprising two parts, the first including a resistor R in series with a reactor X and the second including a resistor #R in parallel with a reactor X/α, the two parts being connected across the output E of an amplifier and the second across the input E1 of the amplifier. To effect the frequency adjustment voltages #1E and #2E respectively, each of which is in phase or 180 degrees out-of-phase with the output voltage E of the amplifier are introduced into the parallel arms and are arranged such that #1/# + α#2 remains constant. It is explained that by this means the division ratio E1/E of the network remains constant and the detuning is directly proportional to changes in # 1 and #2. As shown, the network is connected across the output terminals 31, 32 of an amplifier 30 and comprises identical resistive elements 38 and 39 which are switchable by ganged switches 34, 35 to effect range-changing and identical ganged capacitive reactors 36, 37 which provide a course adjustment of frequency within the band. Since # and α are equal to 1, the introduced voltages may be obtained from potentiometers, 44 and 45 connected across the output of the amplifiers and adjustable simultaneously in opposite directions such that #1+#2 is a constant. The voltage for the potentiometers may alternatively be obtained from a separate amplifier whose input is connected to the input of the main amplifier and when #1 or #2 is negative a transformer may be used to change the phase. When a fixed amount of detuning is required fixed resistors may be used instead of potentiometers.
Patent GB-806388-A (GB)
Title: Improvements in or relating to horticultural irrigation apparatus
Inventor: CHASE JOCELYN LEATHLEY HEBER
IPC: A01G25/02
Filed: 1956-03-28
Abstract: 806,388. Irrigation apparatus. CHASE PROTECTED CULTIVATION Ltd. March 22, 1957 [March 28, 1956], No. 9627/56. Class 69 (3). A flexible tube 1 has countersunk holes 3 spaced along it and each hole is covered by a sleeve 4 fitting frictionally around the tube so that in operation liquid passes from the holes and seeps from the sleeves. The sleeves may each comprise a short length of flexible tube or a close-wound coil of spring wire. In the former case liquid passes along between the tube and sleeve and in the latter case most of the liquid passes between the coil turns.
Patent GB-146648-A (GB)
Title: Improvements in or relating to ornithopter flying machines
IPC: B64C33/00
Filed: 1919-04-15
Abstract: 146,648. Dixon, H. S. April 15, 1919. Ornithopters; propelling. - An orni. thopter flying-machine comprises wings A hinged together at a and provided with struts B connected together by a spring C, which resists upward folding of the wings. The operator has his feet connected to a footboard E and his arms stretched over the wings to grasp handles, shoulder straps being also provided, so that the wings are flapped by contraction and extension of his limbs. Instead of a single spring C, there may be a pair of springs connecting the wings to a single control post.
Patent GB-1379990-A (GB)
Title: Process for removing mercury from aqueous liquids
IPC: B01J41/04
Filed: 1972-03-02
Abstract: 1379990 Mercury removal from aqueous liquids BAYER AG 2 March 1972 [3 March 1971] 9738/72 Heading C1A Mercury is recovered from aqueous liquids by treating with chlorine or chloride ions to form a soluble mercury-chloro complex and adsorbing this on an anion exchanger (e.g. of cross-linked polystyrene or polyacrylate) containing a secondary or tertiary alkyl amine or amine oxide exchanger group; the alkyl radical(s) having 1 to 3 carbon atoms. The adsorbed mercury-chloro complex is eluted with an aqueous solution containing: (a) cyanide, cyanate, thiocyanate or chloride ions and an inorganic base, or (b) a sulphite or bisulphite. The process may be used for mercury pollution control and effecting economies in chemical processes using mercury.
Patent GB-128363-A (GB)
Title: Improvements in or in connection with the Shuttle Boxes of Looms.
Inventor: NEWTON-SMITH ARTHUR
IPC: D03D49/52
Filed: 1918-06-14
Abstract: 128,363. Smith, A. Newton-. June 14, 1918. Shuttle boxes.-The screed 4 of the kind made of sheet metal stamped or pressed to shape comprises a back member 5 wholly in one plane and having at its lower end an horizontal flange 6, the ends of which are curved to form continuations of the vertical edges of the member 5. The member 5 is secured to the back plate 1 of the box by screws 7, which may pass through slots in the screed for adjustment purposes.
Patent GB-678745-A (GB)
Title: Improvements relating to cycle pedals
Inventor: BOULSTRIDGE THOMAS JAMES
IPC: B62M3/08
Filed: 1950-04-21
Abstract: 678,745. Cycle pedals. PHILLIPS & CO., Ltd., J. A. March 27, 1951 [April 21, 1950], No. 9840/50. Class 136(ii) In a cycle pedal of the kind in which the tread surfaces of the pedal are constituted by rubber elements clamped to the side plates of the pedal, the rubber elements 15 are continued from the side plates 14 around the outer end of the pedal, and the side plates and a clamping plate 16 outside the rubber elements are also similarly continued. The rubber elements form the tread surfaces and may be constituted d by a single strip or may be in two or more parts. The beaded edge 15c of the tread 15 is ribbed or otherwise provided with a tread pattern 18. The portion of the tread 15 at the outer end of the pedal may have an upstanding abutment 19, Fig. 4, to prevent lateral slip of the cyclist's foot. Screws 17 secure the plates 14 and 16 and the interposed tread 15 to supports 13 provided on the pedal centre 10.
Patent GB-882417-A (GB)
Title: Improvements in steering mechanism
Inventor: ADAMS FREDERICK JOHN
IPC: B62D5/24
Filed: 1957-03-26
Abstract: 882,417. Power steering. HYDROSTEER Ltd. March 13, 1958 [March 26, 1957], No. 9866/57. Class 79(5). In a vehicle power steering system a control valve 10 carried on the periphery of a ball nut 14 and reciprocably mounted within the operating piston 5 is provided with differential pressure reaction surfaces 16, 25, 26 arranged to bias the valve 10 to its neutral position. Supply and return passages 27, 28 are connected with the valve 10 through radial passage 17 and recesses 22 in the piston 5. Controlling fluid is directed through channels 18, 18<SP>1</SP> to opposite end chambers 19, 20 in the cylinder 4. The valve 10 which is normally retained in the central position by spring washers 12 is further biased by unbalanced opposed pressures in the valve recess 16 or on the opposite ends 25, 26, the end 25 being at the same pressure as the end 26 in the chamber 19 due to leakage of oil through the ball nut into the internal recess 23.
Patent GB-1139378-A (GB)
Title: Improvements in or relating to base plates for securing sheets of paper
IPC: G09F1/12
Filed: 1967-03-02
Abstract: 1,139,378. Sheet holders; drawing boards. T. ARNT-JENSEN. 2 March, 1967 [2 March, 1966], No. 9883/67. Headings B6A and B6P. A sheet holder comprises a transparent plastics base 1, Fig. 1, surrounded by an integral frame 2, 2<SP>1</SP>, 2<SP>11</SP> provided along the frame portion 2 with grooves 10, Fig. 3, intersected by spaced apertures 8 through which project ears 4 of clamping wires 3 journalled in the grooves. The ears 4 clamp the sheet 7 against the base 1 when bent portions 5 are disposed below the base against which they are abutting by lugs 6. In a further embodiment the frame portion 2 is provided with a further groove 11, Fig. 4, which in conjunction with the groove 10 receives slidably a block 12 provided with a cover or ruler 15 and an extension 16 having a hole 9 serving as suspension means. In a final embodiment a pair of sheet holders may be articulated to one another by a pair of blocks 12 attached to one another by the extension 16, which is flexible so that the sheet holders may be superposed over one another in a manner of book covers.
Patent GB-288188-A (GB)
Title: Air-cooled internal combustion engines, particularly for small motor vehicles
IPC: F01P5/04
Filed: 1928-04-02
Abstract: 288,188. Switzeny, P., (trading as Prõzisionsmaschinenfabrik Wolf & Switzeny). April 1, 1927, [Convention date]. Cylinders, cooling. - In an air-cooled engine, especially suitable for small vehicles, the cooling fan 4 is mounted on the crankshaft 1 outside the chain wheel 2, and both the fan and the chain wheel are enclosed in a casing secured to the crank-case. A pipe directs the stream of cooling air on to the exhaust valve casing.
Patent GB-351556-A (GB)
Title: Improvements in hydraulic brakes
IPC: F16D57/06
Filed: 1930-03-28
Abstract: 351,556. Fluid-friction brakes. JENKINS, C. H., Hay, Washington, U.S.A. March 28, 1930, No. 9951. [Class 103 (i).] Relates to automobile hydraulic brake mechanism of the kind employing duplex gearpumps 2, 3 and 2, 4 for circulating the braking fluid while the brakes are not applied, retardation of the movement of the fluid resulting in a retardation of the gear-pumps and driving shaft. The mechanism comprises a gear-case 6 and a fluid reservoir 19 having triangular groups of ports 23, 24, Fig. 6, leading to the gearcase and controlled by slide-valves 25, 26 of the piston type movable in cylindrical housings in the valve chambers 21, 22. Two exterior crossed ducts 11, 12 are also provided, each having an upper port and a lower port opening into the gearcase on opposite sides of the driving shaft 1 to which the main gear 2 is fixed. Normally, when the shaft 1 is rotating in a clockwise direction, Fig. 2, both valves 25, 26, Fig. 6, are open and the fluid circulates in the reservoir through the valve 26 and port 18 to the gear-case, where some fluid is carried by the gear 2 to the port 17 and the remainder by the gear 3 to a space 141 from which it is led through the duct 11 to join the fluid passing through the port 17. The combined fluid then passes through the valve 25 back into the reservoir. When the rotation of the shaft 1 is anti clockwise the circulation is reversed. Gradual or sudden retardation of the shaft 1 when rotating clockwise is effected by partially or wholly closing the valve 25 and, when rotating anticlockwise, by the valve 26. The valves are jointly manipulated by a manually operable crank 32<1>, Fig. 5, connected to an arm 33, Fig. 6, which operates a link 32 joining the ends of valve levers 28, 29, each pivoted at 30 to a fixed bracket and at 31 to the valve. A pipe leading from the space between the gears and the case 6 to the oil reservoir prevents any pressure between the gears and the case due to leakage of the fluid past the gear teeth.