baber/WOPTO huggingface dataset:
Patent GB-418676-A (GB)
Title: An improved machine for sweeping carpets, lawns and other ground surfaces
IPC: A47L11/33
Filed: 1933-04-26
Abstract: 418,676. Sweeping lawns &c. BARTTER, S. H., 8, St. James' Road, Kingston-on-Thames. April 26, 1933, No. 12145. [Class 6 (ii).] A machine for sweeping lawns and other ground surfaces comprises a main frame supported on four wheels well above the ground surface, a brush rotatably and adjustably mounted in the frame, means on two oppositelydisposed wheels adapted to engage with means on the opposite ends of the brush shaft for rotating the brush, a refuse-retaining box removably attached to each end of the main frame and means for propelling the machine over the surface to be cleaned. In the construction shown, a frame comprising side members 1, 2 spaced apart by tie rods is provided with wheels 7, 8, two of which carry spur wheels 9 meshing with pinions 10. Each pinion is mounted on a spindle 11 provided with a cupshaped member which has a T-shaped slot for engagement by a pin 21 on the end of a brush shaft 13. Each spindle 11 is mounted in a bearing provided on one end of a quadrant 14<x> which is formed with a slot 15 and on each face with serrations. The serrations on the inner face are adapted to engage serrations formed on the side member which, as shown in Fig. 4, is formed with an arcuate channel 18 terminating in a slot 19 adapted to receive the bearing for the spindle 11. The quadrants 14<x> are each maintained in place by a stud 20 passing through the slot 15 and screwed into a boss 20<x> provided on the side member. A dustpan 26 is removably attached at each end of the sweeper frame, being held at the top by means of a spring- tensioned hook 31 and at the bottom having a delivery plate 27 which is bent to rest on a tie rod 3. In a modification, the sweeper has at each side an auxiliary brush for sweeping path edges, &c. According to the Provisional Specification, the brush may be driven by friction from the ground wheels or by means of cogs, cogs and chains, or a driving shaft, and propelled by hand or mechanical means.
Patent GB-884805-A (GB)
Title: Process for producing cellulosic products
IPC: D21H13/40
Filed: 1959-04-10
Abstract: A cellulosic product is made by reacting ethyl, propyl, or butyl acrylate, in the presence of 0,01%-1% by weight of a divinyl or divinylidene monomeric compound having at least two ethylenic linkages which are in conjugation with other unsaturated linkages, which latter are themselves non ethylenic, with a paper substrate composed wholly or predominantly of cellulosic fibres, and polymerizing said acrylate and said monomeric compound in an aqueous medium at a pH not greater than 3,5 in the presence of a ceric compound which is soluble in at p  least one component of the reaction medium until the weight of the acrylate combined with the substrate is between 100% and 900%, based on the weight of the substrate.  A preferred monomeric compound is ethylene dimethacrylate, but in general monomers resulting from the full esterification of a glycol (especially ethylene glycol, propanediol-1,3, and butanediol-1,4) with an a , b  ethylenically unsaturated carboxylic acid (especially acrylic or methacrylic acid) may be used.  Specified compounds include ethylene diacrylate, propylene diacrylate, butylene diacrylate, propylene dimethacrylate and butylene dimethacrylate.  Divinyl benzene and divinyl naphthalene may also be used.  As ceric compounds may be used ceric salts, e.g. ceric nitrate, ceric sulphate, ceric ammonium nitrate, ceric ammonium sulphate, ceric ammonium pyrophosphate and ceric iodate, and ceric compounds capable of forming ceric salts under the acid conditions of the polymerization reaction, e.g. ceric oxide and hydroxide. Desirably, the weight of acrylate combined with the substrate is from 200-500%, and the process may be carried out at from -5 DEG C. to 100 DEG C., preferably from 10-60 DEG  C.  Superatmospheric pressure or partial vacuum may be used if desired.  U.S.A. Specification 2,475,846 is referred to.
Patent GB-888774-A (GB)
Title: Metalliferous monoazo-dyestuffs derived from 1:3-dihydroxy-phenyl ketones
IPC: C09B45/14
Filed: 1958-04-16
Abstract: The invention comprises water-insoluble metal complexes of dyes of formula <FORM:0888774/IV (c)/1> where R is an alkyl radical of 1-3 carbon atoms aryl, cycloalkyl or aralkyl, X is OH or COOH, and a may contain halogen, nitro, alkyl, alkylsulphonyl or sulphonamide groups. The complexes are made in conventional fashion by metallising the dyes obtained by diazotising appropriate aniline derivatives and coupling with the desired dihydroxyphenyl component.  Representative of diazo components mentioned are 1-amino-5-chloro-, 3-chloro-5-nitro- and 5-methyl, -alkyl-sulphonyl and -sulphonamido2-phenols and anthranillic acid.  The complexes colour animal or synthetic fibres, e.g. wool, silk and polyamide fibres.  An example and a Table are provided illustrating the preparation of the dyes and their use in colouring processes.  Chromium, cobalt, nickel, iron and copper complexes are obtained and a variety of shades of brown on wool and polyamide fibres.  Specifications 512,839 and 854,404 are referred to.
Patent GB-948435-A (GB)
Title: Improvements in end fittings for flexible hose
Inventor: MELSOM WALTER ARTHUR
IPC: F16L33/01
Filed: 1959-04-10
Abstract: 948,435. Hose end fittings. OIL FEED ENGINEERING CO. Ltd. April 11, 1960 [April 10, 1959], No. 12201/59. Heading F2G. The reinforcement 10 and the inner layer of a flexible hose are trapped between a ferrule 4, 4a and an insert 1 forming part of a re-usable end fitting, the ferrule having an internal helical rib 7 forming at least three corrugations in the reinforcement, and the root diameter of the rib and the corresponding diameter of the ferrule at 6 being equal to the outside diameter of the hose reinforcement when in its free condition. The neck 4a of the ferrule may be integral with the part 4 or, as shown, secured thereto. The hose may be of rubber and the reinforcement of plaited metal or cotton. Relative dimensions are given.
Patent GB-725209-A (GB)
Title: Combined mine-roof drilling and bolt-setting tool
IPC: E21B3/035
Filed: 1953-05-04
Abstract: 725,209. Screw-and-nut actuators. CHICAGO PNEUMATIC TOOL CO. May 4, 1953 [June 6, 1952], No. 12299/53. Class 78 (3). [Also in Groups X, XXII, XXIII and XXXIV] A screw-jack for a mine drilling machine (see Group XXII) comprises a screw 185 rotated by a motor 133 driving through a slipping clutch 169, a threaded jack-sleeve 195 co-operating with the screw, and pivotal mounting points 162 on the casing 91, and 196 on the sleeve. The sleeve is cushioned at the ends of its movement by springs 189 and a rubber ring 193.
Patent GB-930980-A (GB)
Title: Improvements in electric switches
IPC: H01H33/06
Filed: 1961-04-06
Abstract: 930,980. Automatic circuit-breakers; elecromagnetic switches; arcing preventing in switches. J. M. DE VARGAS. April 6, 1961 [April 13, 1960; March 14, 1961], No. 12322/61. Class 38 (5). A switch comprises a cylinder 1 of insulating material with spaced-apart conductive parts 2, 2<SP>1</SP> in its bore, a piston assembly 6 movable in the bore and carrying conductive parts 17 co-operating with those in the bore, and an insulating packing 8 on the piston which, when the switch is opened, is interposed between conductive parts in the bore and on the piston and forms a seal in the cylinder substantially preventing arcing. Fig. 3 shows an automatic circuit-breaker in which on the occurrence of overload, the piston assembly 6 is released from a pawl 15 and drawn down by a tension spring 11 so that a circuit between segments 2 in the bore and segments 17 on the piston assembly is broken and the packing 8 is compressed against the bore to prevent arcing. As the piston assembly 6 moves downwards, a skirt 9 on the assembly 6 strikes a further piston 16 to move it downwardly against the force of a compression spring 18 to separate further segments 17 from the segments 2<SP>1</SP> in the bore. The piston 16 is then latched by a pawl 20 so that to close the switch, it is necessary to raise the piston assembly 6 until it is latched by the pawl 15, Fig. 6, and then to release the pawl 20 so that the piston 16 is moved upwardly by the spring 18 until further movement is prevented by stops 19. Fig. 7 shows an electromagnetic switch in which the piston assembly 6 is moved to its open and closed positions by electromagnets 32, 33, the piston carrying a split cylindrical member 17 bridging the fixed conducting members 2, 2<SP>1</SP> when the switch is closed. A spring-loaded ball or other member may retain the piston assembly in its closed and open positions. In this arrangement, the cylinder may be closed by an insulating bellows 28 and filled with an inert gas, such as nitrogen, at a pressure slightly above atmospheric pressure.
Patent GB-455425-A (GB)
Title: Improvements in apparatus for magnetic detection of cracks in iron or steel
IPC: G01N27/84
Filed: 1936-05-01
Abstract: 455,425. Electromagnets. EQUIPMENT & ENGINEERING CO., Ltd., and SWIFT, H. B., 2, Norfolk Street, Strand, London. May 1, 1936, No. 12360. [Class 35] [See also Group XXXVI] An electromagnet for testing iron or steel parts for cracks is formed with sliding polepieces which can be moved along the core by means of a screwed rod or rods rotated by a handle. The polepieces D of the electromagnet A may be moved along the core B by rotating the rod E, right- and left-handed screw threads being formed on the rod and engaging screwed holes in or threaded bushes attached to the polepieces. Alternatively, two short screwed rods may be provided, one for each polepiece, and each rod is supported at one end in one of the side pieces C and at the other end in an extension fitted to the adjacent end face of the electromagnet coil A. Extension pieces projecting inwards may be fitted to the polepieces. Two or more operating rods may be provided for each polepiece, the rods being connected together by gearing for simultaneous operation.
Patent GB-552201-A (GB)
Title: Improvements in or relating to fuel-injection pumps for internal-combustion engines
IPC: F02M59/44
Filed: 1941-09-24
Abstract: 552,201. Centrifugal separators. STANLEY, G. L. Sept. 24, 1941, No. 12402. [Class 23] [Also in Group XXVIII] In an internal combustion engine having one or more fuel injection pumps, lubricating oil is supplied to the plungers of the fuel pumps by means such as 'one or more gear pumps, and passes through a centrifuge between the oil pumps and the fuel pumps. In the form shown, the crank-shaft 10 of the fuel pump carries a gear wheel 15 and an axially separable coupling 17 for engagement with the driven wheel 16 of a small gear pump which delivers oil at a high pressure to a passage 25 communicating with a centrifuge driven at high speed by the gear wheel 15 through a pinion 38. The centrifuge comprises dished discs 28, 29 and a partition 31 with spaced holes 35 at the mouths of collecting pockets 34 in the discs. The oil may be filtered before entering the gear pump, and a pressure relief valve may be arranged in the passage 39 leading from the centrifuge to the fuel pump plungers.
Patent GB-498033-A (GB)
Title: Improvements relating to automatic change speed gearing for automobiles
IPC: F16H61/02
Filed: 1937-04-30
Abstract: 498,033. Variable - speed toothed gearing. PLAVSIC, N. April 30, 1937, No. 12423. [Class 80 (ii)] In speed-controlled variable-speed gearing for automobiles, a nest of gears 15 on the driving-shaft c gears with corresponding wheels 16 .. 19 loose on the driven shaft d and carrying a radial series of clutch teeth 23, 22, 21, 40 (not shown) adapted to be engaged by clutch teeth 20 on blocks 28, sliding in a drum 27 on the shaft d and formed with racks engaging pinions 25 gearing with racks on centrifugal blocks 24 which are pressed radially inwards by curved springs 31 and carrying projections 29 engaging successively with and brushing past blade springs 26 to check oscillation of the blocks and ensure rapid changes of gear. Increase of speed of the driven shaft d thus moves the blocks 24 outwards and the blocks 28 inwards step-by-step to increase the gear ratio. The shaft d is formed with gear-wheels 6, 8 for driving respectively the ultimately driven shaft 3 either forwardly through a double gear wheel 5 gearing with a wheel 7 on the shaft 3 or reversely through gearing 9, 10, 5, 7. In the latter position of the shaft a carrying the wheels 5, 10 clutch pins 13 may be moved by a lever 11 to engage the blocks 24 to maintain the lowest speed drive in action for reverse gear. The clutch pins 13 may be brought into action by the driver to lock the lowest forward gear in operation and similar clutches may be provided to maintain other gears in action.
Patent GB-464312-A (GB)
Title: Improvements in carburettors for internal combustion engines
IPC: F02M7/11
Filed: 1936-05-04
Abstract: 464,312. Spray carburetters. KING CARBURETTERS, Ltd. May 4, 1936, No. 12590. Convention date, Oct. 17, 1935. [Class 7 (iii)] In a carburetter in which the main air stream is carburetted by several smaller subsidiary air streams carburetted by being drawn through passages with which, intermediate their ends and approximately at right-angles, communicate liquid fuel supply tubes, the passages are narrow and act to meter and accelerate the air and fuel conjointly after the fuel is disintegrated within the passages by the air streams drawn therethrough. An annular float chamber 5, Fig. 1, is mounted between a flange 4 on a central air duct 1, and a nut 6 screwed thereon, and air enters the chamber through ports 10 near its upper edge. A float 12 pivoted to a lever 14, Fig. 4, controls a fuel inlet valve 16, the housing 17 of which is adjustable to vary the fuel level. From the chamber, fuel is drawn into the duct 1 through small orifices 18 by air drawn through openings 20 across vertical fuel pipes 19, the orifices being disposed above a Venturi 25, 26, the crosssection of which is adjustable by relative rotation of its parts 25,. 26. To adjust the fuel flow, a byepass 70 between the chamber 5 and the duct 1 is controlled by a needle valve 71 to vary the depression in the chamber 5. One of the fuel pipes 19 is extended upwards to form an idling nozzle adjacent the throttle valve 30. At the inlet of the duct 1, a choke valve 41 is controlled by the suction in the duct communicated to a chamber 42 through a passage 58. Within the chamber 42, the suction actuates a rotor 44 secured to the valve spindle 45 to open the valve against the pressure of an adjustable spring, the limit of closure being determined by a stop 52 which may be withdrawn at starting to permit complete closure. Alternatively, the valves 30, 41 may be connected together for simultaneous operation through a resilient linkage permitting independent closure of the choke valve. In modifications, the orifices 18 open into a separate chamber having a controlled inlet from the atmosphere, the float chamber is at one side of the duct 1 or the carburetter is of the downdraught type.
Patent GB-709933-A (GB)
Title: Improvements in or relating to a method of and apparatus for blending or mixing textile fibres
IPC: C01B15/03
Filed: 1951-05-29
Abstract: 709,933. Mixing and feeding fibres. AKT.-GES. J. J. RIETER & CIE. May 29, 1951 [May 30, 1950], No. 12614/51. Classes 120(1) and 120(3) Textile fibre material from bales A of different provenance or quality is mixed by placing a batch a cut from each bale in a row, loosening the batches in an opener 1 in the order in which they are in the row, continuously and consecutively superposing layers A1 of the loosened material of different provenance or quality to form a pile whose height increases towards a cutting plane until the number of layers A1 adjacent that plane equals the number of batches a in the said row, and simultaneously removing fibre material at the cutting plane from all layers, the material in each layer A1 being composed substantially of material from one of said batches a. As shown, the fibres from successive layers a, after being opened by bale opener 1, and possibly by a series of further openers (not shown), are ejected by a delivery box 4 on to a lattice 5 carried by a frame 6 which is reciprocated along rails 8 above a hopper 29 by means of a motor 14, automatic reversing gear, and a rope 11, or by other suitable means. Lattice 5 is driven from the running wheels 7 of frame 6, at a speed relative to frame 6 which is equal to that of frame 6 along rails 8, and deposits the fibre in layers A1 in hopper 29. Each layer A1 consists of material from one batch a, except for the effect of slight unavoidable mixing of adjacent batches in opener 1, and may be deposited by one or more complete reciprocations of frame 6. A horizontal spiked lattice 32 feeds layers A1 towards the cutting plane where a vertical spiked lattice 34 picks fibre uniformly from all the layers A1 and deposits it, with the aid of a knife roller 36, into an outlet duct 48. A fluted roller 37 condenses the material in front of lattice 34 where the number of layers A1 is equal to, or twice, the number of bales A. Lattices 32, 34 and rollers 36, 37 are driven from a motor 38.
Patent GB-1384628-A (GB)
Title: Aircraft navigation computer
IPC: G01S1/02
Filed: 1972-03-17
Abstract: 1384628 Radio navigation UNITED AIRCRAFT CORP 17 March 1972 12635/72 Heading H4D In an analogue computer for deriving Cartesian co-ordinate position data from radio navigation signals yielding non-Cartesian position data, one radio navigation data signal is converted into a rectangular waveform. As described the 30 Hz reference signal 44 from VOR receiver 11 is converted to waveforms 45, 46 fed to respective product detectors 31, 32, and a limiter-modulator 26 in conjunction integrators 28, 29 produces a signal 43, supplied to both product detectors, has an amplitude varying as range R (as given by DME receiver 12) and varying in phase according to phase of the 30 Hz bearing (#) signal. The outputs of the product detectors are D.C. signals representative of Rcos#, Rsin# respectively to define the aircraft position, relative to the ground station, in Cartesian co-ordinates. In another embodiment the 30Hz VOR signals are converted to rectangular waves utilizing zero-crossing detectors, and the computed Rcos#, Rsin# signals are combined with locally-generated signals to afford Cartesian co-ordinates of the aircraft relative to a manually-selectable way-point, Fig. 2 (not shown). Distance-to-way-point and a "to-from" indication may be included. In a further embodiment zero-crossing detectors in the 30 Hz VOR signals channels are followed by "constant slew-rate filters", Fig. 4 (not shown).
Patent GB-341810-A (GB)
Title: An appliance for utilising vacuum cleaning apparatus for floor drying and like purposes
IPC: A47L7/04
Filed: 1930-04-24
Abstract: 341,810. Heating air by electricity. KRAUPNER, B., Roudnice, Czecho- Slovakia. April 24, 1930, No. 12645. [Class 39 (iii).] A device for attachment to the hose of a vacuum cleaner to enable the cleaner to be used for drying floors comprises a casing formed in halves and containing an electric heating resistance 3, an air outlet 2 being provided in the casing. Screws 7 passing through the webs 8 serve to clamp the two halves together and to the end of the hose. Plug terminals are enclosed by a box 4.
Patent GB-869920-A (GB)
Title: Improvements in or relating to road vehicle registration number plates
Inventor: BLUEMEL FRANK WILLIAM
IPC: G09F21/04
Filed: 1957-04-18
Abstract: 869,920. Signs. BLUEMEL BROS. Ltd. April 3, 1958 [April 18, 1957], No. 12652/57. Class 3(2) A vehicle registration number plate comprises a backing plate formed with a series of starshaped slots 16, 17 defining tongues 18 and a series digits or digit-carriers 19 provided with projections 21 or screw-threaded studs which are adapted to be resiliently gripped by said tongues. The digits may be formed integral with the carrier or fixed thereto as by the means set out above. Specifications 781,339, 797,691 and 869,919 are referred to.
Patent GB-1219390-A (GB)
Title: Pressure applying device
IPC: G06K13/05
Filed: 1969-03-11
Abstract: 1,219,390. Feeding sheets. INTERNATIONAL BUSINESS MACHINES CORP. 11 March, 1969 [28 March, 1968], No. 12676/69. Heading B8R. Dropping roller feed.-A pressure roller 15 is movable into engagement with either of two continuously driven feed rollers 12 and 13 against the restoring force of springs 32 or 33, in order to feed cards 10 or 11. Roller 15 is journalled on shaft 18 carried by arm 19 fixedly secured to a shaft 20. This shaft also carries arm 34 which supports two flat springs 32, 33. An armature 26 is journalled on shaft 20 and may be attracted to electromagnet 24 or 25. A pin 30 causes arm 34 to follow movement of the armature until roller 15 engages a card. Remaining movement of the armature up to fixed stop 50 or 51 causes displacement of a spring 32 or 33 relative to arm 34, thus applying a predetermined force to the roller 15. Detent roller 56 engaging notch 55 in armature 26 ensures correct location of roller 15 in the rest position when neither magnet is energized
Patent GB-1299279-A (GB)
Title: Weighing apparatus
IPC: G01G3/12
Filed: 1970-03-17
Abstract: 1299279 Load cells: measuring capacitance METRODYNE CORP 17 March 1970 [16 April 1969] 12747/70 Headings G1N and G1U A variable capacitance load cell consists of a mat 10, Fig. 1, comprising two outer electrode sheets 11, 12 and a central electrode 13 all of conductive rubber, separated by dielectric sheets 14, 15 made of longitudinal rubber strips bonded to the inner surfaces of electrodes 11, 12 with the strips of sheet 14 at right angles to the strips of sheet 15. When a load is placed on the mat it produces a proportional change in capacitance as measured between the two outer electrodes 11, 12 and the central electrode 13. The value of the capacitance, and hence the load on the mat 10, is determined by measuring the time taken for a constant current to charge the test capacitance to a constant voltage. As shown in Fig. 3, a clockpulse generator 30 has its output pulses 31 differentiated at 32 to produce a train of pulses 35 each of which triggers a flip-flop 40 to produce an output 49 which opens switch 41 and allows a constant current from amplifier A1 and voltage regulator 42 to charge the test capacitor of mat 10. The resulting sawtooth voltage 45 is compared at A2 with a reference voltage V f  and when they are equal a reset pulse is sent to flip-flop 40. The change-over time of flip-flop 40 is measured at 33, converted to a proportional voltage at 70 and indicated at 80.
Patent GB-378021-A (GB)
Title: Improvements in or relating to clamps for electric cables
IPC: H01R4/62
Filed: 1931-04-30
Abstract: 378,021. Cable joints. BULLERS, Ltd., 6, Laurence Pountney Hill, London, and MILLER, J. G., The Gables, Trysull, near Wolverhampton. April 30, 1931, No. 12793. [Class 38 (i).] A clamp for an aluminium - steel cable is formed with a bore 2 opening into branch passages 4, 5, a pair of split cones 13, 14 in the bore 2 being pressed together by a cap 10 to grip the exterior of the cable, the steel core being extended into the bore 4 and gripped by a split cone 23 forced into the conical end of the passage 4 by a plug 26. A similar grip 20, 21 for a jumper cable is fitted in the passage 5. The cones 14, 20, 23 are serrated internally and are split alternately from opposite ends. The clamp may be attached to a support by a pin 32 arranged on the axis of the bore 2, and provided with an anti-vibration device. The angles 18, 19 between the bore 2 and passages 4, 5 are rounded off. The central space in the clamp body is filled with cement through a closable opening 29.