baber/WOPTO huggingface dataset:
Patent GB-347391-A (GB)
Title: Improvements in motor driven lawn mowers
IPC: A01D34/47
Filed: 1930-03-04
Abstract: 347,391. Motor lawnmowers. PERCIVAL, S., 40, Chancery Lane, London.-(Moto- Mower Co. ; 3246, East Woodbridge Street, Detroit, Michigan, U.S.A.) March 4, 1930, No. 7124. [Class 6 (ii).] In a motor lawn-mower having a rotary cutter driven by the motor as in Specification 238,130, [Class 79 (iii), Motor vehicles, Arrangement &c. of parts of], power is transmitted from the cutter to ground wheels 19 by means including cutter-driven clutch members 21 whose peripheries engage flange walls 20 of the ground wheels 19, and means are provided whereby these peripheral clutches may be engaged or disengaged. The mower comprises side frames 2, connected by tie-rods 3, 4, and a platform 5 supporting the base 6 of a power plant. The ground wheels 19 are fixed on hub portions 18 mounted on an axle 17. The cutter is of usual design and is mounted on a shaft 25 having at its ends pinions 24 meshing with circular racks 23 on the inner annular walls of the clutch members 21. The clutch members 21 are carried by tubular hubs 27 having also closure plates to protect the wheels. Bell cranks 31 mounted on the axle 17 and pivoted as at 32 to the frame form a shiftable supporting connection between the ground wheels and the frame. The cranks 31 carry crossheads 33 adjustably connected to rods 37, and reach rods 11, connected at their upper ends to rotatable hand grips, are adapted to shift the bell cranks by mechanism comprising a crank 41, a rock-sleeve 39 on the tierod 4, a crank 38, the rod 37 and the crosshead 33. As the hub 18 carrying the ground wheels is secured to the axle 17, and the hub 27 carrying the clutch members is fixed to the frames 2, the relative movement between members 17,18 and members 27, 32, 2 produced by adjusting the rod 11 will move the clutch members in to or out of engagement with the ground wheels. The cutter is driven from the motor by sprocket chains 44, 50. A slip clutch comprising a disc clutch member 52 and a regulating spring 53 is provided on the sprocket wheel 48, so that the connection is disengaged in case of obstruction.
Patent GB-838334-A (GB)
Title: New textile printing process
Inventor: LAWMAN DEREK KEITH
IPC: D06P3/10
Filed: 1956-03-07
Abstract: Textile materials containing protein or regenerated protein fibres such as wool, silk and casein fibres are printed with a paste containing a water-soluble azo or anthraquinone dyestuff containing a 3 : 5-dihalogeno-2 : 4 : 6-triazinylamino group, optionally dried and then steamed.  The paste may also contain urea, glycerine, sodium chloride, acid-binding agents or substances liberating acid-binding agents on steaming, such as sodium carbonate or bicarbonate and sodium trichloroacetate, and thickeners such as sodium alginate, methyl cellulose, starch and locust bean gum.  Suitable dyestuffs are those described in Specifications 772,030, 774,925, 781,930, 785,120, 785,222, 826,405, 828,353, 829,042, 838,335, 838,340, 838,341, 838,342, 838,343, 838,344 and 838,345, and those obtained by coupling diazotized aniline, p-toluidine or p-aminoacetanilide with 1-(3 : 5-dichloro - 2 : 4 : 6 - triazinyl - amino) - 8 - hydroxynaphthalene - 3 : 6 - disulphonic acid Numerous examples are given.
Patent GB-655471-A (GB)
Title: Improvements in or relating to gas pressure regulators
IPC: G05D16/06
Filed: 1948-03-08
Abstract: 655,471. Pneumatic gauging apparatus. SOC. D'APPLICATIONS ET DE CONSTRUCTIONS POUR MATERIEL AUTOMOBILE S.A.C.M.A. March 8, 1948, No. 7136. Convention date, March 14, 1947. [Class 106 (ii)] [Also in Groups XVIII and XXIX] A pneumatic gauging apparatus comprises a movable member 3 whose lower end contacts the object 1 to be measured and whose upper end consists of a valve member 5 controlling the outlet from a pipe 9 to which gas, e.g. air, under pressure is admitted through a restriction 11, the height of liquid, e.g. water, in a manometer 12 indicating the required measurement. The pressure of the gas applied to the apparatus is maintained constant by a regulator comprising a tube 14 connected to a supply pipe 15 and dipping into a liquid-filled tank 13 whereby the gas pressure is limited by the depth of immersion of the tube, excess pressure causing bubbles to escape through the liquid. The level of liquid in the tank is maintained constant by means comprising an auxiliary chamber 20 connected by a pipe 19 with the tank, and a reserve tank 22 with which the auxiliary chambsr is connected by an overflow pipe 21 and by a pipe 25 through which liquid is pumped by pneumatic means from the reserve tank to the auxiliary chamber. A pipe 24 connects the pipe 25 with the gas supply, and when the latter is turned on, liquid, which has passed from the tank 22 through a check-valve 29 into a connecting piece 26 between the pipes 24, 25, is driven up the pipe 25 and discharged into the chamber 20. The gas pressure in the pipes 24, 25 closes the valve 29 until the liquid has been delivered to the chamber 20 when the valve 29 reopens to a limited extent under the action of the opposed pressures of the gas and the liquid in the tank 22 to permit liquid to be raised in the pipe 25 by flow of the gas. Alternatively, the liquid may be raised by a rotary blade or geartype pump driven by gas from the supply pipe 15.
Patent GB-1006067-A (GB)
Title: Improvements in or relating to remote control devices
IPC: H05B41/32
Filed: 1961-02-27
Abstract: 1,006,067. Remote control devices. PARISTOR Ltd. and D. G. SNOWDON. Feb. 21, 1962 [Feb. 27,1961], No. 7154/61. Heading G1A. A flash emitting element in a slave photographic flash unit is actuated by a current change in the circuit of a semi-conducting device caused by the flash of a master unit. The slave unit shown comprises a photo-transistor T1 whose output in response to a flash of light from the master unit is amplified by transistors T2 and T3 and is applied as a control signal to the base of a power transistor T4 the emitter and collector of which is connected across a series circuit consisting of a flash bulb L1 and a large capacitor C1. In response to a control signal on the base of T4 the capacitor is thus discharged through the bulb L1 and a light flash is emitted. The power transistor T4 may be replaced by a silicon controlled rectifier or any other semi-conductor device.
Patent GB-666589-A (GB)
Title: Improvements in or relating to the preparation of phenols
IPC: C07C37/04
Filed: 1949-03-16
Abstract: Phenols are prepared by steam treatment of a salt of a sulphonic acid and an alkaline earth metal hydroxide in a process in which the reaction mixture is initially heated to 350-450 DEG  C. in the presence of an inert gas, and then heated with the steam at practically the same temperature.  Phenols specified are cresols, naphthol, and other polyhydroxy compounds such as resorcinol. The inert gas may be nitrogen, hydrogen, carbon monoxide or hydrocarbons. In a preferred process, the hydroxide, e.g. of calcium, is added to the aqueous sulphonate with stirring and the product is dried and may be pressed into pellets.  The period of the initial heating in the inert gas depends on the physical state of the reaction mixture; 30 minutes suffices in the case of granules of 4-6 mm. prepared by drying, or pellets produced by pressures not exceeding 100 kg./cm2. In the examples: (1-4) phenol is produced from sodium or potassium benzenesulphonate by the above process.  Specifications 554,878 and 559,642 are referred to.
Patent GB-1532770-A (GB)
Title: Hydrophilic fibres and filaments of synthetic polymers
IPC: D06M101/16
Filed: 1977-02-21
Abstract: 1532770 Hydrophilic filaments BAYER AG 21 Feb 1977 [25 Feb 1976] 07174/77 Heading B5B Porous filaments are prepared by dry spinning a solution of a polymer to which solution is added 5-50% by wt. of an additive substance which is solid under ambient conditions and which (a) has a m.p.t. or sublimation point higher than that of the spinning solvent used; (b) is readily miscible with the spinning solvent and a washing liquid; and (c) is a non- solvent for the polymer to be spun, and washing the additive out of the freshly spun filaments. Filaments have pronounced core-jacket structures and may be non-circular according to processing conditions. Suitable polymers are polyacrylic nitriles and polyamides or those which optionally contain heterocyclic rings.
Patent GB-956850-A (GB)
Title: New 4-substituted 1,2-diaryl-3,5-dioxo-pyrazolidines and process for their production
IPC: C07D231/34
Filed: 1961-02-28
Abstract: The invention comprises compounds of general formula: <FORM:0956850/C2/1> wherein R represents hydrogen, an alkyl or alkoxy radical having at most four carbon atoms or a halogen atom, and n is 0-4; and their salts with bases; and their preparation by hydrogenolysing a compound of formula: <FORM:0956850/C2/2> wherein R1 represents an aralkyl radical.  Ethers of formula II can be prepared by condensation of substituted malonic acids and their ester and halide derivatives with hydrazobenzenes of formula: <FORM:0956850/C2/3> or by introduction of the 4-substituent. Pharmaceutical preparations containing the compounds I and salts are described, particularly forms for oral (capsules, powders, tablets), parenteral (solutions) and rectal (suppositories) administration. The compounds have antiphlogistic, analgesic and antipyretic activity.
Patent GB-660848-A (GB)
Title: Combined phase convertor and frequency changer set
IPC: H02K47/20
Filed: 1949-03-17
Abstract: 660,848. Control of A.C. motors. FORGES & ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE JEUMONT. March 17, 1949. [March 19, 1948; April 23, 1948]. Nos. 7286/49 and 7287/49. Class 38 (iii). [Also in Group XXXV] In a, frequency converter set (see Group XXXV) which is fed from single-phase mains U and generates polyphase current of modified frequency at B1, the driving motor M is provided with an electric braking circuit. The polyphase motor stator winding d is fed partly from the single phase mains and partly from the converter stator winding P through a switch i so as to obtain polyphase operation. The system is braked by, reversing the phase rotation of the motor stator by means of a, mains current reversing switch I, while the rotor winding a. is first short-circuited through resistances R and is finally connected to the supply by a switch D to lock it stationary, the stator connection to the frequency change stator being interrupted by the switch i. A transformer T is interposed if necessary.
Patent GB-1268648-A (GB)
Title: Improvements relating to bracelets
Inventor: SHOWELL JOHN HENRY
IPC: A44C5/22
Filed: 1969-02-11
Abstract: 1,268,648. Bracelet. EXCALIBUR JEWELLERY Ltd. 18 Dec., 1969 [11 Feb., 1969], No. 7287/69. Heading A3H. A bracelet comprises a pair of C-shaped parts 1 which fit together to form a loop. a catch to hold two of the ends of the parts I together and a hinge connecting the other two ends wherein the hinge includes two elements 3 and 4 attached to the portions 1 and hinged about hinge pins 9, the elements 3 and 4 being housed in respective adjacent hollow end portions of the parts 1 so as to be enclosed when the bracelet is closed. The elements 3 and 4 comprise plates having edge portions 5 extending normally of the planes of the plates, each edge portion extends beyond the edge of the plate end is apertured, 6. The elements are connected by a third member 7 having knuckles 8 in which are located the hinge pins 9. One hinge axis lies adjacent the open hollow end portion and the other axis lies inset from the other open hollow end portion. The catch comprises a spring tongue 12 secured in one part 1 at C and slideably received in the other part 1 and having two laterally projecting lugs 18 and two. laterally projecting tongues 15. The spring tongue is longitudinally divided over the major part of its length so as to be laterally deformable when the lugs 18 co-operate with the end portions of the slot 13. The lugs register behind the end portions of the slot 13 by spring action and are freed by the finger operated lugs 15.
Patent GB-1103432-A (GB)
Title: Composite strands and cables
IPC: D07B1/06
Filed: 1965-02-19
Abstract: A corrosion resistant strand, which may be a constituent strand of a rope or cable, has a metallic core and a corrosion resistant metallic sleeve solid phase bonded thereto.  The sleeve, which is more electropositive than the core and which may be composed of a cupronickel alloy, a nickel based alloy, or nickel, may be adhered to the core which may be of stainless steel nickel or Inconel (Registered Trade Mark) by the solid-phase bonding technique disclosed in Specification 745,511.  The clad rod is then cold drawn through a die to achieve a reduction of up to 97%.
Patent GB-628500-A (GB)
Title: Improvements in or relating to marshalling yards for railway vehicles
IPC: B61B1/00
Filed: 1947-03-17
Abstract: 628,500. Loading and unloading ; traversers for vehicles. MITCHELL, F. G. March 17, 1947, No. 7344. [Classes 78 (iv) and 104 (ii)] A marshalling yard comprises a plurality of reception sidings for wagons, feed means for loading various kinds of material into the wagons on the reception sidings, a plurality of marshalling sidings for receiving loaded wagons from the reception sidings in a desired order and weighing means for weighing the loaded wagons prior to their being run on to the marshalling sidings, in combination with a traverser which is movable transversely of the sidings and is adapted to transfer a wagon from any reception siding to any marshalling siding. Empty wagons 73, Fig. 3, which pass along reception sidings 72 are loaded with various grades of coal from hoppers housed in a building 70 and are then passed through extension sidings 74 on to a traverser 82. This traverser transports the trucks laterally across the sidings to any preselected marshalling siding 76. Wagons are moved on and off the traverser by axle engaging members attached to a rack which is reciprocatable in bearings secured to said traverser which buffer is also equipped with two weigh platforms 96 and a control cab 95. In a modification, Fig. 2, in which wagons move from right to left, three traversers 50, 52, 54 are provided so as to give greater selectivity to the order of wagons in the train and to the order of wagons passing under the loading hoppers 34, weighing platforms being provided on the traverser 50 or 54 only. A by-pass track 58, 64 is provided passing over extensions 56, 62 of traversers 54, 52, to enable wagons to be made up into a train on track 60 on the incoming side of the marshalling yard. In a further modification the trucks are propelled on and off the traverser by axle engaging mules 130, 150, Fig. 11, running on narrow tracks between the main wagon tracks, which mules are driven by endless cables passing over pulleys 120, 122 and 140, 142, the arrangement being such that loaded wagons 75 are propelled more quickly than unloaded wagons 73. The endless ropes may each be individually driven through reduction gearing by its own motor (as shown), or alternatively each series of parallel endless ropes may be driven by one motor and reduction gear, some ropes being engaged with or disengaged from the driving shaft by means of clutches controlled, as are all the other operations, from the cab 95' on the traverser. Specification 550,529 is referred to.
Patent GB-1234745-A (GB)
Title: Hydraulic control device for building up variable pressure in clutches or brakes acting as shift elements in a gearbox adapted to be shifted under load
IPC: F16H63/30
Filed: 1970-02-16
Abstract: 1,234,745. Change-speed control. ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. 16 Feb., 1970 [19 Feb., 1969], No. 7401/70. Addition to 1,208,193. Heading F2D. A control device for an hydraulically engaged clutch or brake of a planetary gear of the type disclosed in parent Specification 1,208,193 in which two brakes B1F and B1 are applied sequentially by a spool valve 151 having lands controlling connection from a first brake line 166 to a supply line 214 and to a vent chamber 155, and also controlling connection of a second brake line 175 to a supply line 216, the supply lines 214 and 216 being directly controlled by 1-2 and 2-3 shift valves 70, 90 movably responsive to governor pressure (i.e. gear-box output speed) at 240 and 241, or, by mechanical means (not shown), the spool valve 151 being biased to the right by brake pressure 166 supplied through a throttle 166a and being biased to the left by a spring 162 which is loaded in turn by brake pressure 166 supplied through a throttle on the right hand side of a piston 161 and opposed by torque or speed responsive pressure supplied to the left hand side of the piston 161, further includes a channel 166d arranged in the zone of the third piston portion 151c of the spool valve 151 and connected to the first brake line 166 whereby the second brake line 175 is connectible alternatively to its supply line 216 or jointly direct with the first brake line 166 via the channel 166d. The arrangement is such that after initial application of both brakes, when changing from 1st to 2nd gear, the valve 151 is shifted rightwardly to cut off the supply to brake B1 and after further rightward movement additionally cut off the supply to brake B1F, this further movement opening an annular chamber 257 to connect the two brake lines 166 and 175 to equalize pressure in the two brakes B1 and B1F during upward shift. When changing up into 3rd gear, the supply line 216 is vented via a chamber 104 of the 2-3 shift valve 90 whereby the brake B1F remains engaged whilst the brake B1 and its associated damper 370 are exhausted. When downshifting from 3rd to 2nd, the spool valve remains positioned at its left hand stop with the brake B1F still engaged, and the brake B1 is re-engaged via lines 213, 216 and 175, the application pressure on brake B1 this time being solely dependent on its associated damper 370.
Patent GB-142613-A (GB)
Title: Improvements in or connected with internal combustion engines
IPC: F02D1/00
Filed: 1919-03-25
Abstract: 142,613. Bell, W. T., and Douglas, J. T. March 25, 1919. Regulating.-The fuel pump or injection valve D, or more than one pump or valve, is mounted on a bracket C adjustable on a plate A encircling the crank-shaft and secured to the bed-plate. The pumps or valves are worked by a cam F mounted on an eccentric boss Y forming part of the casing of a shaft governor, which adjusts the position of the cam angularly about the eccentric. The whole apparatus may be fixed to some other part of the engine and may be driven by gearing. The governor, eccentric, and cam rotate as one with the crank-shaft, but as the speed increases, the governor turns the cam about the eccentric so as to advance the time of injection and also to reduce the throw of the cam and the stroke of the fuel pumps or valves. The bracket C is adjustable by hand about the plate A for advancing or retarding the injection independently of the governor, and a cam-ring N on the bracket C is also adjustable by hand for independent control of the stroke of the pumps or of the valve-lift.
Patent GB-119009-A (GB)
Title: Improvements in and relating to Shoes.
Inventor: SMITH IRA MARTIN
IPC: A43C7/02
Filed: 1918-05-04
Abstract: 119,009. Smith, I. M., and Baker, G. B. May 4, 1918. With attachments for special purposes.-The tied ends of a shoe lace are concealed by flaps 5 stitched to, or formed integral with, the shoe upper. The flaps are secured together by a snap fastener 7, one member of which is carried by an elastic connexion 8.
Patent GB-1153081-A (GB)
Title: Improvements in or relating to Wheel Chock Mechanism
Inventor: LIGHTOWLER LESLIE ERNEST
IPC: G01M17/007
Filed: 1967-02-16
Abstract: 1,153,081. Wheel chocks. LAYCOCK ENG. Ltd. 8 Dec., 1967 [16 Feb., 1967], No. 7562/67. Heading F2E. A wheel chock mechanism comprises a pair of chock body members 11, 12 secured together in spaced relationship with their inclined wheelengaging portions opposed to each other, one, 12, of the body members being provided with a pressure member 18 movable relatively to that body member towards and away from its base and formed with one or more floor contacting members 19 and means mounted on that body member for applying pressure to the pressure member so as to cause a reactionary force to be applied to the wheel through the wheel-engaging portions. In the embodiment, the pressure member 18 comprises a plate carried by a pair of pins 19 passing through the base of member 12 and which are provided with conical ends for engagement with the floor. Pressure is applied to pressure member 18 by means of a cam 22 carried by a cross-shaft 23 and operated by means of a handle 24. The second chock body member 11 is provided with a pair of fixed pins 21 with conical ends for engagement with the floor and is attached to the first chock body member by means of a shaft 14 which is attached by means of a grub-screw 16, to a boss 13 formed on chock body member 12; it is adjustably attached to the second body member 11 by means of a boss 13 provided with hand adjusting screw 17.
Patent GB-565586-A (GB)
Title: Improvements in valves for controlling the flow of fluids
IPC: F16K27/10
Filed: 1943-05-12
Abstract: .565,586. Valve casings. BOLTON'S SUPERHEATER & PIPE WORKS, Ltd., and BOLTON, E. A. May 12, 1943, No. 7577. [Class 135] [Also in Group XXII] In built-up valves of welded construction a closure disc f for the body a carries an abutment g to support the thrust of the spindle h on the inlet member b.
Patent GB-1191621-A (GB)
Title: Improvements in or relating to Nuclear Magnetic Resonance Spectroscopy.
Inventor: RICHARDS REX EDWARD
IPC: C08F2/44
Filed: 1966-03-11
Abstract: 1,191,621. Nuclear magnetic resonance spectrometers. R.E. RICHARDS. June 7, 1967 [March 11, 1966], No.7748/66. Heading G1N. In a nuclear magnetic resonance (N.M.R.) spectrometer, an enhanced signal-to-noise ratio is obtained by causing an N.M.R. sample containing a paramagnetic substance in solution to dwell for a first residence time in a dynamic nuclear polarization (D. N. P.) station and then transferring the sample in a time brief compared with the relaxation of the gyromagnetic nuclei undergoing D.N. P. to an N.M.R. measuring station for a second residence time during which the N.M.R. signal is observed. In one arrangement, the sample is contained in a shuttle the pneumatically reciprocated between the two stations. The shuttle may have a spiral groove or vanes to promote spinning. In another arrangement, a plurality of samples may be contained in respective ampoules mounted on the periphery of a wheel rotated in steps to transfer the samples between the two stations. The D. N. P. station is preferably situated in the fringe field of the N.M.R. magnet and may have its own magnet or coils to homogenize the field. Micro-wave energy supplied to the D.N.P. station excites electron resonance in the sample to cause dynamic nuclear polarization of the gyromagnetic nuclei therein. The N.M.R. may be arranged to give an output signal only when a sample is in the N.M.R. station and the pulsed output thereby produced is suitable for controlling a computer of average transients.
Patent GB-145164-A (GB)
Title: Improvements in gas producers
IPC: C10J3/00
Filed: 1919-03-29
Abstract: 145,164. Antrobus, W. March 29, 1919. Producers.-A producer adapted for consuming wood, peat, and other lowgrade fuel is provided with a number of small tubes D, Fig. 1, in the central part of the shaft so that a part of the gas generated in the combustion zone can be passed to the upper part of the shaft, and the richer distillation gas may be withdrawn from an intermediate outlet. The fuel is fed from the hopper A<1>, Fig. 1, through preheating- tubes B around which circulates the hot gas from the combustion zone on its way to an outlet G<1>. The distillation gas, together with the remainder of the producer gas, is withdrawn through an outlet G. Steam and air are supplied at tuyÚres f, f<1> respectively, and may be preheated in coils f<2>, f<3>. The shaft is contracted at. the lower part to form two waists e, e', and the form of the cross-section is as shown in Fig. 3.