baber/WOPTO huggingface dataset:
Patent GB-1373822-A (GB)
Title: Temperature measurement
IPC: G01K1/02
Filed: 1971-03-19
Abstract: 1373822 Chopper type amplifiers WILKINSON SWORD Ltd 22 Feb 1972 [19 March 1971] 7419/71 Heading H3T [Also in Division G1] A circuit arrangement providing an electrical signal of which the frequency is variable as a function of a temperature to be measured, comprises a thermocouple 5 monitoring the temperature and providing a corresponding D.C. signal which is chopped at 10 to provide an A.C. signal of amplitude dependent upon that of the D.C. signal, which A.C. signal is split into two anti-phase signals at 20 which signals are applied to a frequency modulator 28 whereby the frequency of the output signal therefrom is dependent on the magnitude of the thermocouple voltage and which output signal is fed via an amplitude limiter and squarer 34 to maintain the output signal and the A.C. signal from the chopper in phase, and is fed to a modulator 36 to modulate the D.C. supply current to the circuit of Fig. 1, which supply current is carried on a two core cable 40 which connects to a temperature indicating and alarm unit 40. The frequency modulator includes a multivibrator arranged so that its frequency varies with the D.C. signal from the thermocouple but the work-space ratio does not. It is stated that the arrangement may be used to convert other D.C. signals than those from a thermocouple-
Patent GB-1080634-A (GB)
Title: Automatic sliding swinging door
IPC: E06B3/50
Filed: 1966-02-21
Abstract: 1,080,634. Sliding and swinging doors. REPUBLIC INDUSTRIES Inc. Feb. 21, 1966 [March 1, 1965], No. 7422/66. Heading E2M. An automatic sliding and swinging door construction, having adjustment means 100, to accommodate sag thus obviating the need for a roller on the lower edge of the door, comprises a panel 10 supported by pivots 30 and 32, the pivot 30 being attached to the lower end of a door jamb 22 by an offset bracket 28, the pivot 32 and the upper end of the door jamb being attached to a trolley 20 which slides on rollers 26 in a track 44, a hydraulic piston and cylinder for driving the trolley and the jamb as a unit along the track, resettable breakaway latching means for holding the door in alignment with the trolley and sensing means for determining when the door and trolley are in line. The means 100 comprises a screw 108. engaging a stem 90 whereby adjustment of the screw causes, the pivots 30 and 32 to be tilted relative to each other. A person stepping on a mat in front of the door can only activate the driving means if the door is aligned with the trolley, activation of the sliding motion automatically relatching the door. During the sliding motion guide rollers, mounted on the lower end of the door jamb prevent transverse movement thereof. The hydraulic drive system provides clamping of both the opening and closing movement of the door, the door closing force being provided by tension springs. The pivoting movement is controlled by a hydraulic door check.
Patent GB-350522-A (GB)
Title: Improvements relating to syphoning devices
IPC: E03D1/05
Filed: 1930-03-07
Abstract: 350,522. W at e r-w a st e-preventers. PARKER, G. H., The Glen, Codsall, Staffordshire. March 7, 1930, No. 7446. [Class 26.] In siphons for flushing cisterns &c., of the type in which apertures c<1> in the discharge pipe c are closed when a member b carried by the bell a rests on a seating c2, the member b and the seating c<2> are disposed wholly within the bell and the apertures c<1> are disposed slightly below the normal level of water in the cistern. The member b may be formed integrally with the bell and may operate within the discharge pipe.
Patent GB-390312-A (GB)
Title: Improvements relating to carpet material
IPC: D03D27/00
Filed: 1932-03-14
Abstract: 390,312. Compound and coated fabrics. SANFORD MILLS, Sanford, Maine, U.S.A. March 14, 1932, No. 7508. Convention date, Oct. 28, 1931. [Class 140.] A carpet material comprises a flimsy-backed pile fabric such as upholstery fabric, and an open mesh fabric, such as a cotton leno fabric, united to the back of the pile fabric by a flexible adhesive such as a pyroxylin or rubber compound which penetrates the meshes of the leno fabric &c. A coating of the adhesive may be applied to the pile fabric, either before or after dyeing, to the leno fabric &c. and also to the final product.
Patent GB-1459853-A (GB)
Title: Automatic swimming pool cleaner
IPC: E04H4/16
Filed: 1974-02-19
Abstract: 1459853 Swimming pool cleaner M L HENKIN and J M LABY 19 Feb 1974 7515/74 Heading A4F A swimming pool cleaner comprises a car 32 adapted to travel underwater on the surface of a pool container and which includes a frame 34 supported on traction means, e.g. wheels 36a, 36b and 36c, the car 32 carrying water supply means 66 having an inlet and at least one outlet, and means coupled to the or at least one water supply outlet for propelling the car along the container surface and for directing a water flow so as to thrust said traction means against the pool container surface. The propulsion means is preferably separate from the thrust means and may comprise a nozzle 90 coupled to manifold 66, and a turbine 44 which is supplied with water via tube 62 to drive wheels 36a, 36b via a shaft 50 having gears 54, 56 which engage respective racks 58, 60 or the wheels 36a, 36b. A third wheel 36c is not driven, being pivotally mounted on the car, which mounting may Fig. 8, (not shown) be coupled to one end of a link (220) whose opposite end has a gear (224) which engages a worm gear (226) on the shaft 50 so as to introduce randomness into the car movement. The thrust means may also incorporate the nozzle 90 which may be pivoted so as to produce a component of thrust normal to the pool surface. A thrust may also be produced by a suction unit 91 comprising a Venturi tube 116 and a nozzle 118 supplied with water from the manifold 66. Debris is directed either to a mesh bag 124 as shown or collected within the car in which case a rotating vane system (210) Fig. 9, (not shown) may be incorporated within the car to reduce the debris size, the smaller debris travelling through a mesh surface of the car to be removed by conventional filtering means in the pool. One or more hoses 96 may be connected to the manifold 66, water flowing through the open end of the hose(s) 96 causing a whipping motion thereof to release fine debris from the pool surface for filtering.
Patent GB-451056-A (GB)
Title: Improvements in or relating to modulated carrier wave transmitters
IPC: H03C5/00
Filed: 1935-03-11
Abstract: 451,056. Modulating systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, and WALDEN, H. W. W., 6, Cranhurst Road, Cricklewood, both in London. March 11, 1935, No. 7567. [Class 40 (v)] A vibrating-electron oscillator of the retarding-field type is modulated by varying a capacity in shunt with a tuned circuit. As shown, the oscillator comprises two triode valves 1, 2, with their highlypositive grids connected to a tuned Lecher system 5, 6. The cathode leads 18, 19 may also be formed as a tuned Lecher pair. The plates are connected by a choke coil 11 which has its centre-point earthed. The plates are also connected through a Lecher system 13, 14 to a dipole aerial 15 and the variable modulating-capacity 20 is connected between the Lecher wires. The capacity comprises a vibratable diaphragm or plate adjacent to a fixed plate. The movable diaphragm may be of magnetic material vibrated by signal currents passing through coils on a magnet as in a telephone ear-piece ; or a moving-coil instrument may be used and the movable condenser plate connected to the moving-coil either directly or by a lever.
Patent GB-872651-A (GB)
Title: Colour photographic materials
IPC: G03C7/388
Filed: 1958-03-10
Abstract: 872,651. Colour photographic materials. AGFA A. G. March 10, 1958 [March 8, 1957], No. 7609/58. Class 98(2) An aqueous gelatine solution or gelatinosilver halide emulsion includes a dissolved colour coupler and a heterogeneously dispersed acrylonitrile polymer or copolymer. Diffusion of the coupler from layers of such material is resisted and particularly in the case of couplers provided with long aliphatic chains for the same purpose, the tendency of the layers to peel off from their supports or adjacent layers is resisted also. Examples 1, 2, 3 describe single layers with specified long chain cyan, magenta and yellow couplers containing acrylonitrile, fumaric acid dibutyl ester, acrylic acid butyl ester copolymer; acrylonitrile, fumaric acid diethyl ester copolymer; and acrylonitrile, butadiene copolymer respectively. Example 4 describes a three layer film in the yellow lowermost sequence with the first of these copolymers in all three coupler layers. Numerous other materials for the copolymerisation with acrylonitrile are quoted and foreign publications are referred to for methods of such copolymerisation. Specification 759,409 is referred to.
Patent GB-181683-A (GB)
Title: Improvements in or relating to change-speed power transmission mechanisms
IPC: F16H29/14
Filed: 1922-03-15
Abstract: 181,683. Brunel, A. June 17, 1921, [Convention date]. Variable-speed gearing comprising planetary discs 4, Fig. 1, oscillated by an eccentric 6 of adjustable displacement and communicating motion through ratchets 15 and gear rims 13 to a central driven gear 12 and shaft B, is fitted with special ratchet devices shown in Fig. 6. Each of these comprises balls 21 supported in spring-pressed rockers 26, the coacting recesses having two parts 28, 29 of different curvatures to obtain smooth action. The number of these recesses is greater than a multiple of the number of balls by unity. The discs 4 are carried by a disc 1 upon a driving-shaft A. Each disc 4 has a pin 5 engaging a groove 7 in the eccentric 6. This eccentric turns on a boss 16 with lugs 17 sliding in a groove 19 in a fixed casing 10. The boss 16 is slid to vary the speed by turning an eccentric ring 18. The Specification, as open to inspection under Sect 91 (3) (a), comprises also a form of ratchet in which balls slide in wedge recesses under spring action without the sockets 26. This subject-matter does not appear in the Specification as accepted.
Patent GB-1305831-A (GB)
IPC: C23F1/42
Filed: 1970-02-18
Abstract: 1305831 Etching PHILIP A HUNT CHEMICAL CORP 18 Feb 1970 [20 Feb 1969] 7816/70 Heading B6J An etching bath for aluminium comprises an aqueous ferric chloride solution containing free hydrochloric acid, a copper cation, a thiocyanate anion and a filming agent including a waterimmiscible hydrocarbon component and a surfactant component. The filming agent may comprise at least one member of each of the following groups, (i) hydrocarbon liquids, (ii) esters of orthophosphoric acid and partial salts thereof with compounds selected from ethoxylated aliphatic alcohols and ethoxylated alkyl phenols, (iii) alkyl quaternary fatty ammonium salts, (iv) polyethoxylated amines and (v) alkali metal and alkaline earth metal salts of sulphonated hydrocarbons. The copper salt may be the chloride, sulphate or acetate. The thiocyanate may be in the form of the sodium, potassium, ammonium or lithium salt.
Patent GB-307754-A (GB)
Title: Apparatus for inflating the air tubes of bicycles and similar vehicles
IPC: B60S5/04
Filed: 1929-03-11
Abstract: 307,754. Goebel, J. March 12, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Hiring inflating pumps.-In a coinfreed tyre-inflating apparatus, the shifting of an abutment tube which looks the wheel, simultaneously effects the switching-in of the motor, through a system of levers. The motor 1 drives the pump 3 through gearing, and the compressed air is supplied through hose connections 6, 8, 10 to the tyre, a cylinder 9 which cuts the motor out when pressure is excessive, and a gauge 11. A lever 12 is hinged to the tube 7 leading from the hose 6, and is connected to a cam disc 14 controlled by springs 15, 16, the cams of which coact with levers 18, 19 controlled by springs and actuated by an abutment 21 on the lever 12. The cam disc 14 operates levers 22, 23, to liberate a lever 24 of a cam disc 25, which on release by insertion of a coin in the shoot 30, which strikes a lever, allows a lever 31 to be pulled down and make the circuit. Undue increase of pressure causes the rod of a piston in the cylinder 9 to rise and strike a lever 44, which by release of a cam allows a lever 46 to break the circuit. The motor is restarted after the defect has been remedied by pushing a rod 52 causing the lever 46 to remake the circuit. The tube 7 is drawn into position for connection to the tyre valve by a lever 59, Fig. 5, which locks the wheel &c. in place.
Patent GB-1024373-A (GB)
Title: Improvements in and relating to stabilization
IPC: C08K5/092
Filed: 1963-02-27
Abstract: Polyvinyl alcohol prepared by alkaline hydrolysis is stabilized by neutralizing the polyvinyl ester hydrolysate from which it is produced with an alcohol soluble aliphatic polycarboxylic acid and washing the neutralized resin with methanol or ethanol. Specified acids are aconitic, adipic, citraconic, glutaric, b -hydroxyglutaric acid, isosaccharic acid, itaconic acid, isocitric acid, methyl glutaric acid, succinic acid, tartronic acid and particularly citric acid, malic acid and tartaric acid. Specified polyvinyl ester starting materials are polymers and copolymers of vinyl acetate, propionate, butyrate, hexoate and benzoate and copolymers of such vinyl esters with vinyl stearate, vinyl halides, acrylic and methacrylic acids and esters, and olefins.  Examples describe the neutralization of polyvinyl acetates hydrolysed with sodium hydroxide in methanol with (1 and 2) citric acid, (3) itaconic acid, (4) adipic acid, (5) malic acid, and (6) tartaric acid; and the neutralization of a vinyl acetate-dimethyl fumarate copolymer hydrolysed with sodium hydroxide in methanol with citric acid; the resins being subsequently washed with methanol.
Patent GB-798740-A (GB)
Title: Improvements in and relating to electric throw-over switches
IPC: H01H3/30
Filed: 1957-03-11
Abstract: 798,740. Gas-blast switches; actuation of switches. SMIT & CO'S TRANSFORMATORENFABRIEK N.V., W. March 11, 1957 [March 29, 1956], No. 7991/57. Class 38 (5). A motor 1 changes over a pair of gas-blast circuit-breakers forming part of a transformer tap-changer, the motor driving through a lostmotion device 6, 7 and inertia flywheel 9, a crank 10, 11 which, in the initial half-turn. tensions a spring 12 which thereupon drives a Maltese-cross gearing 14, 15, 16 through 60 degrees and a 3 : 1 reduction gearing 18, 19, whereby a shaft 20 carrying a crank 22 is rotated through 180 degrees. The crank is coupled to the operating rods 26, 27 which, in turn, are coupled to the contacts 28, 22 by springs 38, 39, the enclosures 32, 33 having gas-inlets 34, 35. In order to even out the operating torque, a further flywheel 21 is mounted on the crank-shaft 20. Specification 697,558 and Swiss Specification 298,269 are referred to.
Patent GB-360785-A (GB)
Title: An improved combination article of furniture
IPC: A47B67/00
Filed: 1931-03-16
Abstract: 360,785. Lavatory basins. HOWELL, M. G., Langthorne Cottage, Little Canfield, Dunmow, Essex. March 16, 1931, No. 8010. [Class 26.] A combination article of furniture adapted for conversion, as desired, into a sideboard, dressing- table, or washstand is fitted with a wash-basin 17 and other toilet accessories. The wash-basin may be a tip-up basin, and may discharge to a bucket or to a drain. Hot and cold water taps may be fitted.
Patent GB-990339-A (GB)
Title: Halogen-containing polyester compositions and method for their preparation
Inventor: HAIGH DANIEL H
IPC: C08G63/682
Filed: 1963-02-28
Abstract: 1,2,3,4,9,9 - hexachloro - 1,4,4a,5,6,7,8,8a-octahydro - 1,4 - methanonaphthalene - 6,7 - dicarboxylic anhydride having the formula <FORM:0990339/C2/1> is prepared by heating approximately equimolar proportions of hexachlorocyclopentadiene and tetrahydrophthalic anhydride in an inert organic solvent, e.g. o-dichlorobenzene, at elevated temperatures between 140 DEG  and 200 DEG  C. The anhydride separates from the reaction mixture as a solid.ALSO:Shaped articles are prepared by copolymerizing a linear polyester containing ethylenic unsaturation with an olefinic cross-linking agent, optionally in the presence of catalysts and/or fillers, wherein the polyester employed is obtained by the esterification of the adduct 1,2,3,4,9,9 - hexachloro - 1,4,4a,5,6,7,8,8a-octahydro - 1,4 - methanonaphthalene - 6,7 - dicarboxylic acid or the anhydride thereof <FORM:0990339/C3/1> in the presence of a polyfunctional ethylenically unsaturated compound containing hydroxyl, and/or carboxyl groups. The olefinic cross-linking agent is preferably styrene, vinyl toluene, methylmetacrylate or mixtures thereof. The adduct may be obtained by reacting hexachlorocyclopentadiene with tetrahydrophthalic anhydride in an inert organic solvent at elevated temperatures. The polyfunctional ethylenically unsaturated compound may be an unsaturated polycarboxylic acid or anhydride, e.g. maleic acid, an unsaturated polyhydric alcohol, e.g. 1,4-butene-diol or an unsaturated hydroxy ether such as the allyl ether of glycerol. In the preferred process the adduct is reacted with a polyol in admixture with the polyfunctional ethylenically unsaturated compound and the polyester produced is then cross-linked with the olefinic cross-linking agent.  In the Examples:  (a) the adduct is reacted with ethylene and diethylene glycols, maleic anhydride and tetrahydrofurfuryl alcohol and the polyester obtained is copolymerized with styrene, vinyl toluene or a mixture of styrene and methylmethacrylate and (b) the adduct is reacted with propylene glycol and maleic anhydride.
Patent GB-116342-A (GB)
Title: Improvements in or relating to Cop Tubes and the like used in Weaving Shuttles.
Inventor: PILKINGTON JAMES
IPC: D03J5/08
Filed: 1917-06-06
Abstract: 116,342. Pilkington, J. June 6, 1917. Shuttles. - Shuttle cop tubes &c. formed with bayonet slots or grooves c adapted to engage the ends of a pin b on the shuttle tongue a are reinforced by a metal ferrule f, which may be slotted to correspond with the bayonet-slots or only for a short distance to engage the usual pin on the spindle on which the cop is originally formed. For greater security, a light spring provided on the tube end may be compressed between a shoulder on the tongue and the end of the tube. According to the Provisional Specification, a wrapping of tape or paper may be used instead of a metal ferrule, and the tube may be made of paper, wood, &c.
Patent GB-1375666-A (GB)
IPC: B29C48/07
Filed: 1972-02-22
Abstract: 1375666 Extrusion DOW CHEMICAL CO 22 Feb 1972 [26 Feb 1971] 8137/72 Heading B5A The cross-section of a coating being extruded through a passage 19a about one or more cores being extruded through one or more core passages, e.g. 17a (27, 29, Fig. 2), in a common die 15 supported in a holder 14 can be adjusted adjacent the outlet of the passage 19a by adjusting either the width of the coating passage 19a or the flow properties of the coating material, e.g. 12. The former may be achieved either by a pair of blocks 43 which are mounted in a receiver 25 so that they can be moved relative to one another by a clamp, screw, hydraulic piston, or bolts 51, 52 or by passing hot oil through a conduit (53) in a block (43a, Fig. 4), so that a wall portion (45a) thereof which defines part of the passage 19a is thermally expanded. The flow properties of the coating material may be varied by providing an electrical heating element (57, Fig. 5), in a dimensionally heat stable block (43b) or receiver (25b). The heated blocks (43a. 43b) may be spaced from the respective receiver (25a, 25b) by an air gap or asbestos layer. The coating material e.g. 12 is fed into the passage 19a via at least one port 47 in an insert 24 detachably attached or integral with the receiver 25. The coated extrudate is fed from the die 15 through an extrusion die 21 to a slicer 23 for removing excess coating material. A combining die or adapter may be placed between the die 15 and die 21. The core and coating materials may posses dissimilar chemical composition, physical properties, and/or appearance.
Patent GB-596148-A (GB)
Title: Improvements in power-driven vehicles, primarily intended for agricultural pursuits
IPC: B62D49/06
Filed: 1945-04-03
Abstract: 596,148. Agricultural tractors. CATTANACH, R. S., and MECHANISED HORTICULTURAL IMPLEMENTS, Ltd. April 3, 1945, No. 8201. [Classes 79 (i) and 79 (iv)] Relates to power driven agricultural vehicles for pulling or pushing a wheeled chassis carrying tools, particularly of the kind also described in Specifications 596,210 and 596,211. According to the 'invention, the length of the wheel base between the land wheels and propulsive unit and the tracking distance apart of the landwheels are independently adjustable. In the form shown, a frame tube 1 is slidably engaged in a block 3 so that the wheel base length may be varied. The block 3 is, in turn, slidably mounted on a hollow axle 16 so that the position of the land wheels with respect'to the longitudinal axis is variable. Land wheels 25, 26 are mounted on stub axles carried,by bars 17, slidable within the axle 16 so that the width of the track of the land wheels may be varied. The braced framework 5, over the endless track element 6. supports the power unit 7. The steering column 4 fixed to the frame head 2 rotates in a tube rigidly supported on the framework 5. Reference is made to a tool-coupling device described in Specification 578,529, [Group XXV].
Patent GB-764816-A (GB)
Title: Improvements in or relating to model aeroplanes
IPC: A63H27/20
Filed: 1955-03-22
Abstract: 764,816. Toy aircraft. RICCI, P. March 22, 1955 [March 26, 1954], No. 8232/55. Class 4. A toy aircraft which is launched by a hand catapult which engages a notch 3 in the underside of the fuselage 2 has a delta-shape wing 9 provided at its trailing edge with a flap 10. A wire 12 is formed as a U in plan and clipped at its free ends 10 to the trailing edge of the flap on either side of the fuselage and at the bridge of the U it is secured to a small flap 13, The flap 13 is held against the top of the fuselage as shown in full lines by a spring 16, in which position the flap 10 is set at negative incidence, When the model is catapulted, airflow acts on flap 13 and raises it to the position shown in dotted lines, causing the flap 10 to assume zero pitch. When the speed of the aircraft falls, the spring 16 overcomes the effect of airflow on flap 13 and returns it to the full-line position to set the flap 10 at the most effective incidence for gliding flight.
Patent GB-682796-A (GB)
Title: Improvements in or relating to hammer mills
IPC: B02C13/288
Filed: 1950-04-03
Abstract: 682,796. Impact pulverizers. SANDOR, B. T. March 30, 1951. [April 3, 1950]. No. 8253/50. Class 59 The blower 6 of a hammer mill 5 is arranged so that it can, without alteration, be used either to deliver the treated material from the mill to a meal bin 10 or to convey untreated material to a feed bin 1, the untreated material being fed into the airstream entering or leaving the blower through a hopper 12 and inlet independent of the hammer mill. Normally, the material in the bin 1 falls past a pivoted flap in the shoot 2, through an adjustable gate 3<SP>1</SP>, past a shutter 23 in a shoot 4 and into the mill, whence it is delivered by the blower to the meal bin 1 through trunking 9. The pivoted flap in the shoot 2 is opened by the flow of material but is counterbalanced by a spring or counterweight to the closed position so that it closes when the material is exhausted and cuts off the ignition, fuel or power supply of a petrol, diesel or electric driving motor. By moving a flap in the trunking 8 so as to shut off the trunking 9, untreated material from the hopper 12 can be delivered along the trunking 11, the hopper feeding through a shutter into a blower inlet duct 6<SP>1</SP>, Fig. 1 or into the trunking 11 immediately after a venturi-tube restriction 16, Fig. 4. An opening 26, normally closed by a cover 27, is provided at the bottom of the mill casing to permit a cross-flow of air for clearing any accumulation of material in the mill.