baber/WOPTO huggingface dataset:
Patent GB-440518-A (GB)
Title: Improvements in the lubrication of conveyor chains and the like
IPC: B65G45/08
Filed: 1934-11-03
Abstract: 440,518. Lubricating. BABCOCK & WILCOX, Ltd., and HOLLICK, F. W., 34, Farringdon Street, London. Nov. 3, 1934, No. 31629, [Class 12 (iii)] A lubricant gun for lubricating the roller axles of conveyer and like moving chains is actuated electromagnetically under the control of a switch operated synchronously with the movement of the chain. The gun 5 is mounted on a carriage 6 movable at right angles to and parallel to the chain 2. Upon energization of a solenoid 7 an armature 8 i.s lifted and levers 9, 10 move the gun 5 towards the chain so that the gun nozzle 4 engages a nipple on the end of an axle 1 and a charge of lubricant is ejected, the gun meanwhile being carried along with the chain. When the solenoid is de-energized, the gun retracts under the action of the weight of the armature 8 and /or a spring, and the carriage 6 is returned to its initial position by a spring 11. The switch 12 controlling the current to the solenoid is associated with pivoted levers 13, 16, having springs 14, 17. The lever 16 is arranged in the path of the moving axles, and when engaged thereby it is rocked from the position a to the position b and the switch 12 is closed during this movement to energize the solenoid 7. A manually-operated switch 20 is in circuit with the switch 12. The switch components 12-16 are carried by a box 18 which can be adjusted parallel to the conveyer track by operation of a hand wheel 19. The gun nozzle 4 is connected, with lateral play, to a bracket 21 guided for movement parallel to the nozzle axis and carrying a guiding nose piece 22 engageable with the axle ends. The bracket 21 has a tail piece 23 which, should the gun operate out of time, rides over any obstruction on the conveyer chain and protects the gun from damage.
Patent GB-316923-A (GB)
Abstract: 316,923. South Metropolitan Gas Co., and Smith, J. H. May 5, 1928. Lighting burners by electric devices.-An electric switch for use in lighting incandescent gas burners, comprises a tiltable vessel 10 containing conducting liquid and having two compartments 11, 12 separated by narrow orifices 14 and containing contacts 17, 18 arranged as shown so that when the vessel is tilted into the " igniting" position, the liquid flows into the compartment 12 and closes for a short time a circuit through contacts 17, 18 to a heating coil adapted to ignite the gas. When the vessel is tilted back into its original position, there is either no connection at all established between the contacts 17, 18 or only a momentary connection since the liquid will leave the contact 18 almost immediately. The vessel 10 is mounted on a spindle 9 adapted to be rotated by a lever 6 which also operates the gas valve through pneumatic tubing 4. The lever 6 and switch are mounted on a base which also carries a battery 19 in clips 20.
Patent GB-1059636-A (GB)
Title: Working metals by electro-erosion
Inventor: LIVSHITS ABRAM LAZAREVICH
IPC: H02M9/04
Filed: 1963-08-12
Abstract: 1,059,636. Electro erosion. EXPERIMENTALNY NAUCHNO - ISSLEDOVATELSKY INSTITUTE METALLOREZHUSHCHIKH STANKOV. Aug. 12, 1963, No. 31699/63. Heading B3V. [Also in Division H3] In the electro erosive working of metals, low frequency high energy unipolar arc impulses are used. The impulses are produced by a peak transformer, Fig. 2, whose primary winding 1 is on an unsaturated portion 2 of the core and whose secondary winding 3 is on a saturated portion 4. The secondary is connected by full wave rectifiers 6 and resistor 7 to the erosion gap 8. A magnetic shunt 5 varies the reluctance. In a modification, Fig. 3 (not shown), a bridge rectifier is used and in another modification, Fig. 1 (not shown), a half-wave rectifier is used. Other embodiments are described, Figs. 4-9 (not shown), using three phase supply and half or full wave rectification. In another embodiment, Fig. 11 (not shown), a magnetic amplifier is used comprising power windings 9 on two cores 10 connected through a bridge rectifier to a load 12 which includes the erosion gap. Control windings 13 are fed with direct current and additional windings 15 are used to remove harmonic components of the output voltage. In a modification, Fig. 10 (not shown), a half-wave rectifier is used and in another embodiment, Fig. 12 (not shown), the power windings 9 are supplied by a transformer 14 with a centre tap connected to the load 12. Other embodiments of magnetic amplifier circuits are described using three-phase and neutral supply with halfwave rectifiers, Fig. 13 (not shown) and threephase supply with full wave rectifiers, Fig. 14 (not shown). A secondary working circuit may be used to apply carbon to a carbon electrode and thus prevent wear during its use in a main erosion circuit; alternating current used for the main erosion operation may also be adapted for this purpose.
Patent GB-209555-A (GB)
Title: Improvements in spiral sound amplifiers
IPC: G10K13/00
Filed: 1922-11-21
Abstract: 209,555. Donnell, L. H. Nov. 21, 1922. Sound-magnifying appliances. - A soundamplifier comprises a rectangular wooden box having oppositely disposed inlet openings 3 and a convolute passage preferably formed from a strip of flat metal 4 the open ends of the smallest convolution being disposed opposite the inlet openings whereby the sound waves travel from the innermost convolution and are discharged through the aperture 2. Fig. 3 shows the metal spiral secured by being embedded in the side walls of the box.
Patent GB-843220-A (GB)
Title: Artificial tree
Inventor: WARREN WILLIAM AUGUSTUS
IPC: A41G1/00
Filed: 1957-10-11
Abstract: 843,220. Artificial trees. WARREN CHRISTMAS TREES Inc. Oct. 11, 1957, No. 31839/57. Class 63 An artificial tree formed of moulded thermoplastic sections comprises a base support 6, Fig. 1, of inverted dish-shape having a peripheral supporting rim and an integral central core, the core having an upwardly projecting frusto-conical portion 29 and a portion 28 extending downwardly to adjacent the plane of the rim to provide a vertical support for the tree. The tree trunk comprises tapered sections 7-15 fitting end-to-end, the lowermost section fitting on the portion 29, the trunk sectional being formed with circumferentially spaced and outwardly radiating pins 36 on which elongated branches 16-21 are fitted by means of end sockets 37. Each of the branches is formed with laterally extending pins 43, Fig. 12, which are engaged by end sockets of leafed twig sections 22. The pins 36 are of cruciform section and radiate from the lower ends of the trunk sections while the reduced end 52 of the branch pins 43 are formed with projections 54 adapted to be resiliently engaged by the twig section sockets. The leafed twig sections may be formed as described in Specification 790,278.
Patent GB-798545-A (GB)
Title: Manufacture of trisazo dyestuffs
IPC: C09B35/46
Filed: 1955-11-08
Abstract: The invention comprises dyestuffs obtainable by combining a compound of formula <FORM:0798545/IV (b)/1> where D is the residue of a tetrazotizable diamine of the benzene or diphenyl series, n is 1 or 2 and Z an acid residue, in a neutral to alkaline medium with a diazo benzene sulphonic acid containing at least one methyl- or alkoxy-group as nuclear substituent to form a diazo disazo dyestuff which is treated with 1-amino-3-hydroxybenzene which may be substituted in the nucleus or in the amino group.  Benzidine and its substitution products are indicated as tetrazotizable diamines. Specified benzene sulphonic acids are aniline-2-methyl- and -methoxy-4- and -5-, -3-methyl-4- and -6-, -4-methyl- and -methoxy-2- and -3-, -2,4 - dimethyl- and -dimethoxy - 6-, -2,6 - dimethyl - 4-, -2,5 - dimethoxy - 4- and -2-methoxy - 5 - methyl - 4 - sulphonic acids.  1-Amino-8-naphthol-3,5-, -3,6- and -4,6-di- and -4- and -5-mono-sulphonic acids are specified middle components. Indicated as end components are m-aminophenol which may contain chlorine or methyl nuclear substituents or N-alkyl, -hydroxy-alkyl, -aralkyl, or aryl substituents.  The dyestuffs dye leather in bluish or black shades. Examples are provided illustrating the preparation of the dyestuffs from certain of the components specified above and their use as leather dyes. Specification 763,064 is referred to.
Patent GB-1472534-A (GB)
Title: 7beta-hydroxyiminoacylamido-cephalosporins
IPC: C07D307/54
Filed: 1973-07-06
Abstract: 1472534 Bromine azide GLAXO LABORATORIES Ltd 5 July 1974 [6 July 1973] 32273/73 Heading C1A [Also in Divisions C2 and A5] In Preparation 1, a methylene chloride solution of BrN 3  is made by reacting N 3 H with N-bromosuccinimide.
Patent GB-879224-A (GB)
Title: Improvements in or relating to mixing and atomizing device
IPC: F23C7/00
Filed: 1957-10-16
Abstract: 879,224. Fuel atomizers. DE LA FOURNIERE M. M. P. R. Oct. 16, 1957 [Oct. 17, 1956], No. 32283/57. Class 75(1). [Also in Group XXIX] A fluid mixing and atomizing device, especially for burners comprises a chamber 1 having opposite walls connected together by a side shaped as a logarithmic spiral, the chamber having a circular aperture in one wall, the centre of the aperture coinciding with the pole of the spiral, fluid entering the chamber at the end remote from the aperture, a second fluid being fed into the central region by a duct 5 opposite the aperture and the mixture escaping through the aperture. The aperture may be extended by a tube 4 and the duct'5 may extend to the surface of the aperture or to the discharge end of the tube. The cross-section of the chamber may be rectangular. The device may be used for carburation, aerosol producing or as a paint gun.
Patent GB-638132-A (GB)
Title: Improvements in and relating to fluid blast electric circuit breakers
IPC: H01H75/04
Filed: 1945-11-29
Abstract: 638,132. Air-break switches. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 29, 1945, No. 32287. Convention date, Nov. 30, 1944. [Class 38 (v)] In a fluid-blast circuit-breaker, fluid-actuated arcing contacts 2, 3 reclose once before the series isolating switch 4, 5 is opened, previous. opening of the latter being prevented by energization of a coil 63 which shuts off the opening blast, a time delay device 66 causing the blast valve 18, and thus the contacts 2, 3 to reclose. On a fault, the valve 18 is opened by a coil 32, and the arcing contacts 2, 3 are opened. Simultaneously, the coil 63 is energized, thereby blocking a conduit 59 and preventing the exhausting of a cylinder 50 and movement of a piston 49 to permit the supply of fluid to an isolator-operating piston 40. Fluid also acts on a piston 79 having an annular recess 89 and a central bore 88, so that the pressure builds up before the piston moves downwards against the action of an adjustable spring 85. This causes counter-clockwise rotation of a cam-shaft 84, so that a cam 100 acts on a roller 102 to open a switch 67 in the circuit of the coil 32, thus shutting off the blast and allowing the contacts 2, 3 to reclose. Further movement of the camshaft 84 opens a switch 69, 74 to de-energize the coil 63, and then closes a switch 68, 76 to provide an alternative circuit for coil 32 and cause re-opening of valve 18 if the fault persists. In this latter event, the circuit is again broken at 2, 3 and fluid is now supplied to the piston 40 to open the isolator 4, 5. Movement of the rack 42 opens a switch 70 and again de-energizes coil 32. The spring 85 returns the device 66 to the position shown, and the arrangement is such that the switches 68, 69 are restored simultaneously with the switch 67. A manual switch 73 can be changed over to provide the normal arrangement wherein the contacts 4, 5 open every time contacts 2, 3 open. The downward movement of the piston 79 may be intermediately retarded by providing an accumulator chamber 92. A similar chamber 93 ensures an adequate gas supply to ensure completion of the operation of the time delay device 66. Switches held set and freed mechanically.- Opening of the switch 69 is caused by a cam surface 112 acting on a roller 111 on a rocking cam 105 which is pivoted at 106 and bears on a roller 108. The surface 109 of cam 105 holds 69 in its new position while allowing a considerable reverse movement of cam 110 before the cam surface 113 engages a roller 115 on the cam 105.
Patent GB-1431165-A (GB)
Title: Space heater
IPC: F24H3/00
Filed: 1974-07-23
Abstract: 1431165 Space heaters D J S DAVIES 23 July 1974 32479/74 Heading F4S In a space heater in which the space heating means comprises a tube 8 through which circulates a heated fluid, the fluid heating means comprises a tank 12 partitioned by a plate 15 into upper and lower compartments interconnected by an aperture 21 in the plate 15, the upper compartment containing a heat source (e.g. an electric immersion heater 16) and the fluid inlet end of the tube 8, and the lower compartment being in communication with the fluid outlet end of the tube 8, whereby fluid circulation takes place between the upper and lower compartments of the tank 12 via the tube 8. As shown, the discharge end of the tube 8 connects with a further tank 11 which connects via a tube 14 with the lower compartment of the tank 12. A cover 19 encloses the tube 8 and has heat radiating panels therein (Fig. 3, not shown).
Patent GB-534008-A (GB)
Title: Improvements in luminous materials
IPC: C09D5/22
Filed: 1939-12-19
Abstract: 534,008. Luminescent materials. LEBEAU, C. A. Dec. 19, 1939, No. 32487. [Class 39 (i)] A hard luminescent material which can be worked by sawing, cutting, drilling, &c. is obtained by mixing one part luminous paint powder such as Balmain's paint with six parts of a granulated transparent resin, heating the mixture in a mould to melt and blend the constituents and then chilling the product. Polymerized methyl methacrylate sold as "Lucite" formerly known as " Pontalite ", is a suitable resin, the mixture is heated to 300‹ F and chilled to 120‹ - 180‹ F. The paint contains calcium oxide, sulphate and sulphide, sodium and potassium chloride, bismuth oxide, sodium bicarbonate and white casein; proportions are given. As a phosphorescent medium calcium sulphide may be used with copper, bismuth, manganese as activator and as a flux a borate, phosphate, fluoride, sulphide or chloride. The material may be moulded to produce house numbers, street names, electric switches or indicators, buttons, corners of furniture and edges of sidewalks.
Patent GB-962296-A (GB)
Title: Improvements in or relating to dimension measuring apparatus
Inventor: HOLMES ROBERT THOMPSON
IPC: G01B13/16
Filed: 1962-08-23
Abstract: 962,296. Pneumatic gauging. ROLLSROYCE Ltd. Aug. 23, 1962, No. 32516/62. Heading G1M. A gauging device comprises a U-tube 5 containing a conducting liquid e.g. mercury with one arm connected by a tube 4 to a pressure depending on the size of an object 1 being gauged and the other arm containing conducting probes 9 e.g. of tungsten of varying length so that according to the size of object 1 the mercury will contact a varying number of probes 9 to complete, via transistor amplifiers, indicating and/or printing circuits. The pressure depending on the size of object is produced by means of a piston 2 engaging object 1 and slidable in a fixed tube 3 to progressively cover a bleed hole 8. Air at constant pressure is supplied through tube 6 to tube 4 and bleed hole 8. A plurality of pistons 2 and tubes 3 may be used to gauge different dimensions of the object.
Patent GB-1520783-A (GB)
Title: Hot venturi tube jet propulsion units
IPC: F02K7/12
Filed: 1975-08-04
Abstract: 1520783 Gas turbine plant; jet propulsion plant; generating combustion products under pressure; ejectors H A KERSHAW 4 Aug 1975 32599/75 Headings F1E F1G F1J and F1L A jet propulsion unit has a jet pipe 1 fed with compressed air by five rings of Venturi tube ducts, the last ring of which actually exhausts into the pipe 1. The Venturi tube ducts are the channels lying between struts 2 of aerofoil shape mounted in rings in the inlet end of the pipe 1 between two coaxial tapered tubes 3, 4. The struts 2 are of radial formation and form the main part of the walls of the Venturi tubes, tubes 3, 4 forming the remaining part of these walls. Heat is conveyed through the struts 2, which are of hollow construction, by an air-flow, induced through inlets 5 and exhausted from outlets 6. Small vents 7 provided in both tubes 3 and 4 admit additional air to the Venturi tubes of the last four rings. Instead of a plurality of rings of Venturi tubes, a single ring of such tubes may be used. In operation, air which is drawn through an  inlet 9 is forced through the first ring of Venturi tubes by the action of jets of compressed air or, in some cases, compressed combustion gases, discharged from slotted nozzles 10 into the inlet ends of the tubes and is alternately compressed and expanded isothermally in this and the remaining four rings of Venturi tubes before being exhausted, together with the additional air induced through air inlets 7 and the air discharged from outlets 6, through pipe 1 to produce a thrust reaction. The nozzles 10 are fed with compressed fluid by conduits 11, led from pipe 1 through scoops 11a. Heat is passed from the air under compression, by the heat conveying air directed through the hollow struts 2 and by conduction through their walls, to the expanding air flowing through the outlet sections of the Venturi tube ducts. Fuel is injected through atomizers 12 into pipe 1 from an annular, encircling duct 1a, and is burnt in the air passing through the pipe to produce extra thrust. A turbine driven by the working fluid could be incorporated in the pipe 1, the struts 2 then being placed at an angle to exhaust in the direction of rotation of the turbine rotor. Alternatively, the unit may be adapted as an air or gas compressor, generator, or ejector. A small scoop tube 1b leads compressed air from pipe 1 to a storage bottle (not shown) for use in starting the working cycle of this unit. The struts 2, in a further embodiment, have hollow walls either filled with sodium or through which air is passed. The sodium would melt at the operating temperature and convey heat by convection.
Patent GB-978549-A (GB)
Title: Improvements relating to arrangements including a magnetic recording head
IPC: G11B5/187
Filed: 1963-08-19
Abstract: 978,549. Magnetic sound recording head. TELEFUNKEN PATENTVERWERTUNGSGESELLSCHAFT m.b.H. Aug. 19,1963 [Aug. 17,1962], No. 32644/63: Heading G5R. The bias windings 7, 8 on the core members 2,1 of a recording head are so proportioned and arranged that substantially all the effect of the winding 8 at the trailing edge of the gap 3 is neutralised by the effect of the winding 7. Adjustment may be made by a movable member 11, shunting a non-operative gap 4. The signal windings are oppositely arranged to concentrate the signal field at the trailing gap. In Fig. 3,12 represents the bias and 13 the signal fields at the recording gap 3. In alternative embodiments, not described in detail, the windings may be equal and tapped, and external circuitry of a resistive or reactive nature may be appropriately connected to such tappings.
Patent GB-160931-A (GB)
Title: Improvements in and connected with magneto electric machines
IPC: H02K21/10
Filed: 1919-12-30
Abstract: 160,931. North, R. B., and Allen, A. M. Dec. 30, 1919. Magneto-electric machines.-In ignition magnetos of the type having magnets with adjustable pole-shoes, these pole-shoes are mutilated or formed with reduced portions and are directly connected to the adjustable element of the contact breaker. Fig. 1 shows the armature polepieces a a<1>, b b<1> held between non-magnetic rings c, d, and Fig. 3 the mutilated adjustable poleshoes e e<1>, f f<1>. The pole-shoes are supported by the non-magnetic ring r and the ring j. The latter is provided with a rib l and with lugs k which pass through the bracket m and are secured to the contact-breaker casing o.
Patent GB-1478901-A (GB)
Title: Electromagnetic trigger device for a motor-driven camera film transport mechanism
IPC: G03B17/42
Filed: 1974-07-24
Abstract: 1478901 Motor-driven film transport NIPPON KOGAKU KK 24 July 1974 [24 July 1973(2) 26 Oct 1973 1 Feb 1974] 32706/74 Heading G2E A camera has an electromagnetic arrangement for controlling the film drive during the alternative modes of continuous or single-frame photography. As shown, some of the circuit components of Fig. 1 have a mechanical equivalent in the device of Fig. 2, which comprises a motor 10 driving a conductive gear 12 which is grounded via its shaft 14. The shaft is connected to shutter and film drive mechanism, so that one full rotation of gear 12 accomplishes a single-frame shot. One face of gear 12 has an insulating plate 13 and a projection 15. When the projection engages a lever 16 the shutter is closed, and a phase switch 9,contacts plate 13 and is opened thereby. Lever 16 is biased anticlockwise on a pivot 17 by a spring 18, and in this position is out of contact with a motor switch 8. The lever can be pivoted clockwise by the common core 19 of a pair of coils 6, 7 so as to bring the end 16a out of engagement with pin 15 and to close switch 8. For continuous photography a switch 5 is closed, and the camera release is pressed. This closes a holding switch 4 and changes over a trigger switch 3 from contact 3a to contact 3b. This allows the charge on a starting capacitor 21 to render a silicon controlled rectifier 20 conductive, so that coils 6 and 7 are energized, thus attracting the end 16b of lever 16. As a result, motor switch 8 is closed, and pin 15 released. Rotation of gear 12 brings plate 13 into contact with a switch 23 which it opens, rendering rectifier 20 non-conductive. Coil 6 is thus de-energized, but coil 7 remains energized, so that motor 10 continues to rotate. When the camera release is no longer pressed, switched 3 and 4 return to their Fig. 1 position, and coil 7 is de-energized, so that lever 16 returns to its Fig. 2 position. The phase switch 9 permits motor 10 to continue rotating until projection 15 comes up again against lever 16. For one-frame photography, switch 5 is opened. When the camera release is pressed, switches 3 and 4 are actuated as before. This time the holding coil 7 is not energized, but only coil 6, so that when rectifier 20 is rendered non-conductive, and hence coil 6 is de-energized, the motor stops after one film frame has been transported. A number of different embodiments are described, having various modifications of the basic circuit of Fig. 1, such as transistor arrangements in place of the rectifier 20, a single coil instead of the two coils 6 and 7, and means whereby a sequence of single-frame photographs at predetermined time intervals may be effected.
Patent GB-904440-A (GB)
Title: A feedback amplifier with a negative impedance in the feedback path which is equivalent to a gyrator
Inventor: JIRMUS JAROSLAV
IPC: H03H11/42
Filed: 1958-10-14
Abstract: 904,440. Valve amplifying circuits exhibiting gyratory properties. TESLA, NARODNI PODNIK. Oct. 14, 1958, No. 32743/58. Class 40(6) A gyrator comprises a feed-back amplifier A with a gain of two, having equal input and output impedances Z, and having in the feedback path a negative impedance - Z equal in magnitude to the input impedance. Either parallel-parallel or series-series feed-back may be employed, as shown in Figs. 5, 6, respectively.
Patent GB-1526589-A (GB)
Title: Continuous vulcanisation
IPC: B29C35/02
Filed: 1977-06-03
Abstract: 1526589 Vulcanizing continuous lengths GOODYEAR TIRE & RUBBER CO 3 June 1977 [6 Aug 1976] 32878/76 Heading C3E Continuous lengths of elastomeric or plastoneric material are vulcanized by propelling the material through an enclosure, in which it is subject to vulcanizing conditions, in the form of successive turns supported on the surface of a vertically journalled rotary cylindrical drum, the successive turns being supported by projecting guide means extending around the drum. In Fig. 2, a hose 4 is supported by guides 2 and is moved from one guide to the next by transfer roller 3. Rotation of the drum 1 by shaft 8 conveys the hose successively from the inlet 6 to the outlet 7.