baber/WOPTO huggingface dataset:
Patent GB-158980-A (GB)
Title: An appliance for carrying or holding files when in use
IPC: B25G1/00
Filed: 1919-11-13
Abstract: 158,980. Dickson, J. G. Nov. 13, 1919. Holders with clamping-devices for file-blades; multiple-support handles. - A file-holder comprises a bracket portion A, provided on the underside with a socket J adapted to receive the pointed tang G<2> of the file G, and having an upwardly projecting part A' with an aperture F through which passes the screwed end of a rod C terminating in a head B formed with a notch I to receive the bevelled tip G<1> of the file. The latter is held tight by screwing the handle D, which has a threaded socket engaging the screwed end of the rod C, hard up against the part A'. A movable stay E may be provided to enable the file to be bent when it is required to work upon an uneven surface. Heference has been directed by the Comptroller to Specification 2752/77.
Patent GB-502981-A (GB)
Title: Teething devices
IPC: A61C17/00
Filed: 1937-10-15
Abstract: 502,981. Teething devices. ALLEN, P. E. Oct. 15, 1937, No. 28131. Convention date, Oct. 29, 1936. [Class 81 (ii)] A rubber or like resilient teething device comprises a thin central portion 4 haying equispaced projections 2 extending therefrom, the projections being comparatively narrow near thepart 4 and increasing in width and thickness towards their outer ends Preferably the projections are of elliptical cross section and have annular or other protuberances 3 on their surfaces. A central hole 11 for a suspension cord may be provided.
Patent GB-497621-A (GB)
Title: Improvement in thermal insulating sheet
IPC: E04B1/80
Filed: 1937-10-16
Abstract: A light, porous, heat- and sound-insulating sheet material comprises a mixture of mineral and vegetable fibres united by a binder containing bentonite and magnesium oxysulphate or calcined magnesium oxide.  Waste asbestos fibres and excelsior or coarse wood slivers and fibres rejected in the manufacture of paper pulp are mixed dry with bentonite, and, if desired, sawdust, then mixed or sprayed with an aqueous emulsion or foam containing calcined magnesium oxide, bentonite, and, if desired, magnesium sulphate. The resulting fibrous mixture is lightly rolled or moulded to shape, and dried under light pressure between oiled steel sheets. A thin sheet of corrosion-resistant ferrous metal alloy may be secured, e.g. with bitumen, to one or both faces of the slab.
Patent GB-1035209-A (GB)
Title: Improvements in sealing compounds
Inventor: MOORE ROBERT CHARLES
IPC: C08L81/04
Filed: 1964-07-09
Abstract: An aminoalcohol is added to a mixture of a liquid polysulphide polymer, a phenolic adhesion-promoting resin and an alkaline earth metal peroxide, to reduce the curing time of the mixture when cured by exposure to water or water vapour.  The aminoalcohol may be monoethanolamine or triethanolamine and may be used in an amount of from 2 to 30 parts per 100 parts by weight of the polysulphide polymer. The peroxide may be calcium, barium, strontium or magnesium peroxide and may be present in an amount of 0.5 to 10 parts per 100 parts by weight of the polysulphide polymer. The phenolic resin may be a B-stage phenol-formaldehyde, terpene phenolic resin or a modified phenol-formaldehyde resin. Drying agents, moisture-attracting materials and fillers may be included.  An example is given.
Patent GB-275835-A (GB)
Title: Improved device for filling mechanical flint lighters and the like
IPC: B65D47/02
Filed: 1926-11-11
Abstract: 275,835. Dunhill, Ltd., A., and Dunhill, V. Nov. 11, 1926. Containers for charging fuel reservoirs of igniters are provided with a tapered screwthreaded nozzle 4 closed normally by a screw-cap 5 or a plug. In use, the nozzle 4 is screwed into the filling opening of the igniter and the two articles are tilted or inverted to allow the fuel to flow to the wick. The nozzle 4 may be detachable and the container may be provided with a second or filling opening closed by a cap or plug. Specification 128,886 is referred to.
Patent GB-889456-A (GB)
Title: Improvements in devices for releasably connecting two beams at right angles
Inventor: JONES CYRIL TREHARNE
IPC: E21D17/03
Filed: 1958-09-04
Abstract: 889,456. Supporting horse head beams on mine arches. DOWTY MINING EQUIPMENT Ltd. Nov. 5, 1959 [Sept. 4, 1958], No. 28473/58. Class 20(2) A clamp supporting a horsehead beam 11 on a mine arch 10 comprises plates 13 one on each side of the beam and connected by pivots 14, 15 offset on either side of the centre line of the plates and carrying clips 16, 17 engaging the lower flanges of the beam 10. The beam 11 rests on a pin 28 resting in hooks 26 in the lower ends of the plates 13. As shown in Fig. 2 the clips 16, 17 are sprung out of their normal shape. The beam 11 is secured by a wedge 31 engaging over the pin 28 by a slot 32.
Patent GB-895803-A (GB)
Title: Lagging iron coupling with locking pin
IPC: E21D17/086
Filed: 1959-08-20
Abstract: 895,803. Bolts; cotters. GROETSCHEL K. M. Aug. 20, 1959 [Sept. 6, 1958], No. 28493/59. Classes 89(1) and 89(2). In a coupling a, b, the locking pin c is held against withdrawal in the coupling by a projection e in the member b, engaging a longitudinal closed-end-groove d in the pin, but can be withdrawn by moving the pin axially until the projection enters a circumferential groove g which is connected to a further longitudinal groove f which is open at the end of. the pin, and is circumferentially spaced from groove d, and then rotating the pin until the projection enters the groove f. The grooves f, d may be spaced at 90 degrees to each other on the circumference of the pin, and in this case a cotter h Fig. 5 is removably located in the pin to prevent the projection from entering groove g<SP>1</SP> inadvertently. The cotter may be formed by two telescoped pins.
Patent GB-1520293-A (GB)
Title: Process for electromagnetic stirring of molten metal
IPC: B22D11/10
Filed: 1975-07-07
Abstract: 1520293 Electromagnetic stirring UNION SIDERURGIQUE DU NORD ET DE L'EST DE LA FRANCE 7 July 1975 [22 July 1974] 28499/75 Heading B1C [Also in Division B3] Metal (which may be rimming or semikilled steel) in the liquid core of a casting in a copper continuous casting mould is stirred by rotation by an electromagnetic field, e.g. of 500-2000 gauss, rotating about the mould axis and produced by a current of less than 10Hz frequency in a stator. The three-phase stator, connected in delta or star, has three poles evenly spaced around (or at least partly in) a stainless steel coolant jacket surrounding a copper mould with a wall thickness of the order of 10, 15 or 20mm and which need not be of circular section. A rotary frequency converter or a stationary one with thyristors supplies the stator. The molten metal in the mould may be covered by a powder and replenished by an immersed spout.
Patent GB-841149-A (GB)
Title: Cyclopentanophenanthrene derivatives and process for the preparation thereof
IPC: C07J5/00
Filed: 1956-09-18
Abstract: The invention comprises the 3-hemi-succinate of pregnan-3a -ol-11,20-dione and its water-soluble non-toxic salts, the cation being sodium, potassium, or NR4 where each R represents hydrogen or an alkyl, hydroxyalkyl, carboxyalkyl, aminoalkyl, aryl or aralkyl group, each containing up to ten carbon atoms, also the preparation of the salts by reacting the hemisuccinate ester with a basic solution containing the desired cation, e.g. sodium bicarbonate or hydroxide, the solid salt being isolated by lyophilization.  In an example, pregnan-3a -ol-11,20-dione, succinic anhydride and anhydrous pyridine are refluxed, mixture cooled and acidified, giving the hemi-succinate, which is treated with aqueous sodium bicarbonate, the solution frozen and lyophilized under high vacuum to yield the sodium salt.  Specification 804,521 is referred to.ALSO:Anaesthetic agents comprise a sterile aqueous solution of a salt of the 3-hemisuccinate of pregnan-3d-ol-11,20-dione, the cation being Na+, K+ or NR+4 where each R represents hydrogen or alkyl, hydroxyalkyl, carboxyalkyl, aminoalkyl, aryl or aralkyl, each containing up to 10 carbon atoms. The salts may also be combined with other pharmaceutical carriers. Specification 804,521 is referred to.
Patent GB-1059312-A (GB)
Title: Improvements in or relating to pulse generating circuits
Inventor: JAMES JOHN BERNARD
IPC: H03K17/84
Filed: 1963-07-19
Abstract: 1,059,312. Circuits employing bi-stable magnetic elements. INTERNATIONAL COMPUTERS & TABULATORS Ltd. July 6, 1964 [July 19, 1963], No. 28661/63. Heading H3B. In order to compensate for changes in amplitude of a magnetic field produced by eddy currents in an electrically conductive layer 2. superimposed by a magnetic film 1, due to a current pulse train applied from a pulse generator 9 to the drive conductor 5 of the magnetic film a compensating circuit 22 comprising the parallel combination of a resistor 24 and an inductor 23 is connected in series with the pulse generator, the values of the inductor and resistor being such that the time constant of the pulse generator and compensating circuit is substantially equal to the time constant of the eddy currents. In order to store a digit of one binary significance in the element 1, a hard axis magnetic field is applied to the element 1 by energization of conductor 6 from source 7 and simultaneously a pulse is applied to conductor 5 by bottoming transistor 11. On termination of the current pulse applied to the conductor 6 the magnetization vector adopts the same direction as the easy axis field. In order to store a digit of the other binary significance transistor 17 is bottomed instead of transistor 11 so that current flows in the opposite direction through 5 with the result that when the easy and hard direction fields are terminated the magnetization vector adopts the opposite direction. If a train of pulses is applied to either transformers 15 or 19, the total effective easy axis field decreases with successive pulses due to a decrease in the eddy currents in substrate 2 field component. By including the circuit 22 having components of values to make the time constant thereof equal to the eddy current time constant, the current through the conductor 5 gradually increases and this increase tends to overcome the decrease in the eddy current field component and thereby maintain the total field constant. The circuit described may be used to drive the digit lines of a matrix. The conductors 5, 6 may be arranged at a small angle to the axes, in which case energization of conductor 6 alone sets the element in one stable state and energization of both conductors sets the element in the other stable state so that one of the transistors may be omitted.
Patent GB-377030-A (GB)
Title: Improvements in speed change gear for power driven vehicles
IPC: F16H63/30
Filed: 1931-10-15
Abstract: 377,030. Controlling motor vehicles. HURTH, C., HURTH, H., HURTH, F., HURTH, L., and SCHIEFELBEIN, D., (trading as HURTH, C.), 19, Holzstrasse, Munich, Germany. Oct. 15, 1931, No. 28691. Convention date, Oct. 20, 1930. [Class 79 (v).] In motor vehicles having power shafts 1, 2 at right-angles -to the direction of travel, the gear control lever 9 is movable in a gate slot 8 longitudinally of the vehicle, as usual. The control movements are transformed in direction by bell-crank levers 7 disposed one on each side of the gate 8. Each lever 7 has an arm 11 extending towards the control lever 9, a pair of striker arms 12, 12<1> engaging a clutch 3 or 4, and a quadrant arm 18. Lateral movement of the ball lever 9 engages that lever at 13 with the ball end of one of the arms 11. Movement of the lever 9 longitudinally in the gate 8 then turns the selected lever 7 to move the selected clutch 3 or 4 to one of its gear positions. Locking is effected by detent pawls 21 springing into notches in quadrants on the arms 18.
Patent GB-813088-A (GB)
Title: Chair for hydrotherapeutic treatment
IPC: A61G15/00
Filed: 1957-09-11
Abstract: 813,088. Seats. HALTER, L. Sept. 11, 1957 [Sept. 14, 1956], No. 28703/57. Class 52(2) A chair for use in underwater massage or like treatment has a sling seat 20 adjustable on hooks 19 on side pillars 14, 15 carried by sub-frames 1, 2 connected by cross members. A head support 29 carried by telescopically adjustable tubes 24, 22 can be pivotally mounted on the frame and angularly adjusted by a lever 30 with a pin and hole setting device on a quadrant 31. A step 8 and holding-on bars 16 are also provided.
Patent GB-278203-A (GB)
Title: Improvements in or relating to production of cycloidal curves
IPC: B23F23/00
Filed: 1926-11-15
Abstract: 278,203. Braren, L. X. Nov. 15, 1926. Turning.-In a machine for grinding cycloidal curves, the grinding wheel 20 is mounted in a. carrier 28 on a slide 22 which is moved vertically by means of a spindle. 23 working in a rotatable nut 25. Hand adjustment of the slide is effected by rotating the screw 23 through bevel gearing from a hand wheel. The' grinding wheel is provided with means for dressing the curved periphery of the wheel to a radius smaller than any radius of the curves to be produced. A diamond tool 31 is mounted in a holder pivoted on a pin secured to a slide 34 actuated by a spindle 29 over which is fitted a screw 19 working in a nut 36 for moving the carrier 28 to and from the work axis. The pitch of the screw 29 is twice that of the screw 19 so that the trimming tool is moved to the right twice as fast as the grinding wheel, thus maintaining the operative face of the wheel in the same position. The grinding wheel and dressing tool may be relatively adjusted by means of spiral gearing 37 operated from a hand-wheel.
Patent GB-603802-A (GB)
Title: Method of softening and de-aerating water, and particularly boiler water
IPC: C02F1/20
Filed: 1945-10-30
Abstract: Water is de-oxygenated and softened by treatment with salts formed from hydrazine or bases producing hydrazine under heat or hydrolysis, containing anions giving insoluble salts with lime and magnesia. From boiler water the treatment precipitates the fur producing agents, removes the oxygen and makes the water slightly alkaline. Oxygen may be removed by the treatment from water to be used in the manufacture of commodities containing vitamins.  Salts of the type mentioned are sodium hydrazinic phosphate, hydrazine oxalate, sodium aminoguanidine phosphate and in general the phosphates, oxalates, &c. of carbazides and hydrazine derivatives of urea, guanidine and amidines are effective.
Patent GB-281083-A (GB)
Title: Apparatus for the production of wire gratings by electric welding of the wires at the intersection points
IPC: B21F27/10
Filed: 1926-11-15
Abstract: 281,083. Dobrick, V. Nov. 15, 1926. Welding.-In a machine for making wire gratings, such as bird cages, by electrically welding sets of longitudinal and transverse wires at their crossing points, one set of wires is mounted in a carriage, which is traversed step-by-step between a pair of welding electrodes together with a wire of the second set so that the latter wire is successively welded to each wire of the first set, whereupon the carriage is returned, the set of wires then drawn from the carriage, through a distance equal to the spacing of the second set and the operations then repeated. A series of transverse wires y are placed in slots 15 and against an end stop in a plate 14, which is provided with a handle 13 and is placed between rails 12 on the rear part 5 of a carriage and secured thereto by studs 17 engaging perforated bars ]8. The parts 5, 6 of the carriage are secured together by angle irons 4 so as to leave a space 7 through which projects a longitudinally grooved fixed electrode 9 on which the longitudinal wire x is placed. The carriage on its lower surface has balls 3 located in bearings 2. which slide on angle iron guides 1 on a fixed table I, and carries on its upper surface a bar 19 having a guide groove 20 to receive the end transverse wire and an end stop 21 for the longitudinal wire. The carriage normally abuts against a stop 20. After the end transverse wire has been welded to the longitudinal wire by a vertically movable electrode, the carriage is traversed and with it the longitudinal wire by a pin 23 on a spring- pressed lever 29 engaging a rack 22 thereon. The lever 29 is pinned to a lever 25 which is connected by a rod 24 to a pedal lever which operates the movable electrode to effect, the weld and at the same time re-sets the lever 29 so that the feed is effected when the pedal is released. By a series of such operations the successive transverse wires are welded to the longitudinal wire. The lever 29 is now put out of operation by a lever 31 connected by links 33, 34 to a pivot 35 carrying a hand lever. The carriage is then returned against the stop 30, and the lever 29 then re-set. The wire x is then gripped by tongs and is then lifted and drawn forward together with the transverse wires and is dropped into a series of notches m<1> - - m<6> in bars 38, 39 secured to a board on the part 6 of the carriage. A new longitudinal wire is then inserted and similarly welded to the transverse wires. The bars 38, 39 are provided with other sets of notches n<1> - - n<6>, o<1> - - o<6> and p<1> - - p<6> to receive longitudinal wires after welding, being retained in position by notched levers 40. The pedal may be replaced by a mechanical drive. The carriage may be provided with a set of longitudinal instead of transverse wires, and traversed step by step in a transverse direction instead of longitudinally.
Patent GB-533547-A (GB)
Title: Improvements in or relating to cellulose acetate plastics
IPC: C08B3/30
Filed: 1939-10-26
Abstract: 533,547. Cellulose ester compositions. HERCULES POWDER CO. Oct. 26, 1939, No. 28787. Convention date, Dec. 24, 1938. [Classes 2 (ii) and 2 (iii)] A clear, transparent, substantially colourless plastic composition of cellulose acetate comprises a plasticizer, a blue dyestuff to neutralize the inherent yellow tone of the composition, and a minor proportion of an acid having a dissociation constant in the range of about 4 x 10<SP>-2</SP> to about 1 x 10<SP>-4</SP>.The acid may be added in a proportion of about 0.0005 to about 0.10 per cent by weight of the cellulose acetate. The plasticizer is preferably heatstable and it may be camphor, dimethyl phthalate, diethyl phthalate, diphenyl phthalate, ethyl phthalyl ethyl glycollate, tricresyl phosphate, tributyl phosphate, butyl tartrate, triacetin, o- and ptoluene sulphonamides, tripropionin, triethyl citrate, dimethoxy ethyl phthalate, methyl methoxy-ethyl phthalate, sorbitol hexa-acetate, or a light coloured plasticizing resin. Blue dyes of the azine, diphenyl naphthyl methane, anthraquinone; or triphenylmethane type may be used, e.g. Phenoform Blue R, Wool Fast Blue BL, Victoria Blue B, Resicast Violet FA (Crystal Violet), or Blue GA. The acids used may be organic or inorganic, mono- or polybasic acids, e.g. phosphoric, tartaric, citric, oxalic, or lactic acid. The addition of acid retards the discolouration of the cellulose acetate composition on heating during a moulding operation and exerts a stabilizing influence on the dyestuff. The acid may be added to a solution of the blue dye in a. solvent, e.g. methyl alcohol, this solution being in turn incorporated with the cellulose acetate plastic. A paste of cellulose acetate, plasticizer and solvent may be rolled into sheets on heated rolls. The dye solution containing the stabilizing acid is added and most of the solvent removed by rolling. Further amounts of solvent may be removed by heating chips from the rolled sheets. The plastic composition in granular or powdered form may then be moulded in a heated press or injection mould. Sheets, rods, tubes, or other moulded articles may be made.
Patent GB-1341808-A (GB)
Title: Vehicle wheel suspension arrangements
IPC: B60G15/07
Filed: 1972-06-20
Abstract: 1341808 Independent rear suspensions DAIMLER-BENZ AG 20 June 1972 [28 June 1971] 28789/72 Heading B7D In a motor vehicle rear suspension, a wheel carrier 7 connected to a suspension strut comprising a coil spring 15 and telescopic damper 16 is located in the horizontal plane by a transverse track control rod 14 and an obliquely-extending longitudinal link 8 which is connected to a frame side member 5 by an oblique bearing 12 disposed at a higher level than a joint 10 connecting the link 8 to the carrier 7 below the wheel axis so as to reduce squat when accelerating. The damper 16 is inclined inwardly to obtain a negative camber increase under increased load. A antiroll bar 26 is connected to the link 8 or the link 8 may be formed by part of an anti-roll bar. A disc brake caliper 20 is rotatably mounted on the wheel carrier 7 by a rolling bearing 22 and is connected to the link 8 by a link 24 to reduce drive when braking. A universally-jointed drive shaft 3 connects the rear wheel to differential gearing 2.
Patent GB-1186364-A (GB)
Title: Improvements in or relating to Electrical Filter Networks employing Active Resistance Capacitance Circuits
Inventor: FRANKLIN DONALD PETER
IPC: H03H11/12
Filed: 1966-06-28
Abstract: 1,186,364. Filter circuits. ELECTRIC & MUSICAL INDUSTRIES Ltd. 28 June, 1967 [28 June, 1966], No. 28823/66. Heading H3T. A filter circuit comprises one path between input and output containing a first frequencydependent impedance, a second path between input and output containing a second frequencydependent impedance preceded by an inverter, and positive feedback from the output to another input of the inverter, the circuit containing substantially no inductive components, Fig. 2, shows such a circuit for correcting " aperture distortion " due to finite gap length in a magnetic tape head or finite spot size in a flying-spot film scanner. Such correction requires a lowpass filter of Gaussian frequency response, with constant delay over the pass-band, and is achieved in Fig. 2 by two stages of filter according to the invention. The input at V 1  is passed to the output (emitter of 10) via a parallel RC circuit 17, 18 and also via an inverting transistor 11 followed by a series RC circuit 20, 21. Positive feedback is produced by coupling the two emitters with a constant-current source 14, so that transistor 11 acts as a differential amplifier. The second stage of the filter is the same as the first except for different values of resistance and capacitance in the RC circuits. The transistor 14 may be replaced by a high resistance. Calculations are given for choosing the RC values. The two RC circuits in each stage may be combined in a bridged-T network (Fig. 3, not shown).