baber/WOPTO huggingface dataset:
Patent GB-522257-A (GB)
Title: Improvements in or relating to brush holders for electrical machinery
IPC: H01R39/38
Filed: 1938-12-03
Abstract: 522,257. Brush-holders. MORGAN CRUCIBLE CO., Ltd., and HEWS, C. J. Dec. 3, 1938, No. 35295. [Class 35] In a brush-holder of the type in which pressure is applied to the brush by a lever operated by a helical spring in such a way that the change in the length of the spring as the brush wears is approximately compensated by the change in the distance of the axis of the spring from the fulcrum of the lever, so that the pressure on the brush remains practically constant, the point of attachment of the spring is made adjustable, so that the constancy described above is preserved for different pressures on the brush. For other purposes the spring 6 is attached to a block 8 sliding in a slot in the lever 4 and adjustable by means of a screw or otherwise. A scale may be marked on the lever 4, or on a strip attached thereto and arranged above the block 8.
Patent GB-784131-A (GB)
Title: Improvements in or relating to arc lamp prefectors
IPC: H05B31/10
Filed: 1953-12-18
Abstract: 784,131. Arc lamps. CONRADTY, E. K., CONRADTY, P., CONRADTY, M. and CONRADTY, C. Dec. 18, 1953 [July 30, 1953; Oct. 6, 1953], No. 35319/53. Drawings to Specification. Class 39(1). An are lamp projector for operation at current loadings of 75 to 130 amps. with the electrodes in the coaxial horizontal position has a cathode comprising a shell or covering of graphite or carbon surrounding two like, parallel, spaced apart cores, the spacing of which varies according to the desired current load and the diameter of the anode carbon, but which is at least 0À5 mms., the cathode being arranged in the projector with the two cores lying in the same horizontal plane. The cores can be connected together, either entirely or partially, by a straight or coverd slot or a cavity can be provided between the two cores extending along the entire length of the cathode. The crosssection of the cathode can be circular, rectangular, oval, kidney-shaped or flattened on one or two sides. The cathode may be constituted by two cathodes, each having one core, the cathodes being united side by side in parallel relationship.
Patent GB-449449-A (GB)
Title: Improvements in electric time limiting switches
IPC: G04F1/06
Filed: 1935-12-21
Abstract: 449,449. Starting prime movers. KAMMERER, A., 3, Tannenstraase, Solln, near Munich, and ZWEIFEL, E., 54, Prinzregentenstrasse, Munich, Germany. Dec. 21, 1935, No. 35434. [Class 38 (iv)] [See also Group XXXVII] A time-delay switch for use in a starting system for Diesel engines comprises a tubular container 2 rotatable about an axis 1 by means of a slide 14 acting through rack-and-pinion and pawl-and-ratchet mechanism. Slidable in the container 2 is a contact rod 8 carrying pistons 6, 7 whose movement is retarded by a mobile substance such as granules or a viscous liquid which has to pass through a fixed perforated plate 3. When the slide 14 is pushed in against the action of a spring 17 it is retained by a catch 21 and the container 2 is reversed into the position shown, in which the contact 8 bridges contacts 23, 24 to complete the circuit of a heating element 29 of the Diesel engine. The contact 8 moves slowly downwards under gravity until it leaves contact 23 to break the heating circuit and at the same time the lower end of rod 8 causes the engagement of contacts 25, 26 to complete the circuit of a starting motor 31. Further movement of rod 8 causes engagement of contacts 26, 27 to complete the circuit of an electromagnet 19 which withdraws catch 21 and slide 14 moves to the right. At the end of this movement, a projection (not shown), on slide 14 engages the container 2 and tilts it clockwise to remove rod 8 from contacts 25-27 and break all the circuits, and the apparatus is ready for another delayed operation. When however the engine is warm, a mercury column 33 expands and connects contacts 34, 35 and wire h connected to catch 21. If now the slide 14 is pushed in the motor circuit is immediately completed through wire g, brush 28, slide 14, catch 21, mercury column 33 and contact 34. The magnet circuit is also completed through contact 35 and so the slide is not retained by the catch 21 and can be depressed repeatedly.
Patent GB-1359110-A (GB)
Title: Differential mechanisms
IPC: F16D7/02
Filed: 1972-07-28
Abstract: 1359110 Slip clutches; differential gear BORG-WARNER CORP 28 July 1972 [11 Aug 1971] 35497/72 Headings F2C and F2D In the differential gear shown in which a rotating casing transmits rotation to output shafts 11 via a pair of pinions 49 on a spindle 51 engaging gears 47 on the output shafts, clutch elements 55 on these ouput shafts 11 engage conical surfaces 43 of the casing to restrict the differential action. In the embodiment shown springs 61 between the gears 47 (axially movable on splines) bias the clutch members into engagement, aided by a separation force between the gears due to their engagement with the pinions 49. The clutch elements 55, one of which is shown more clearly in Fig. 3, have a helical groove for lubrication purposes, lubricant being supplied through channels 69 from reservoirs 25. In another embodiment the clutch surfaces are conical in the opposite direction, and the elements 55 are urged towards each other by Bellville springs. In this embodiment the transmitted torque tends to reduce clutch engagement (Fig. 5, not shown).
Patent GB-367858-A (GB)
Title: Improved apparatus for increasing the output of oil wells
IPC: E21B43/263
Filed: 1930-11-26
Abstract: 367,858. Wells ; blasting cartridges. MAZE. C. D., Calinesti, Prahova, Roumania. Nov. 26, 1930, No. 35587. [Classes 9 (i) and 85.] For increasing the output of an oil well, a vibratory wave is produced in the liquid column cf the well by exploding a charge of gunpowder &c. 3 in a, body 4 which is lowered into the well, lead shot 9 or the equivalent being provided adjacent the explosive. The pres. sure may also be used to rectify a constriction in the well, in which case the explosion chamber may be flared downwardly.
Patent GB-1274936-A (GB)
Title: Improvements in or relating to multiple tools for electrochemical countersinking
Inventor: KOPPERN HEINZ
IPC: B23H3/04
Filed: 1969-07-15
Abstract: 1,274,936. Electro-machining apparatus. H. W. KOPPERN and H. SCHAFER [trading as MASCHINENFABRIK KOPPERN & CO]. July 15, 1969 [July 17, 1968], No.35607/69. Heading C7B. A multiple tool for electro-chemical countersinking of large workpieces by successive operations comprises a row of electrodes supported in holders and a carrier for the electrode holders including means for supplying and withdrawing electrolyte to and from the working zone, and including an inter-changeable plate, the choice of which defines the arrangement of electrode holders relative to the fluid distributing carrier. In the form shown a row of electrode tools 5 having working tips 9 (the horizontal section shown passes through one of the electrodes) are attached to a base-plate 2 through which electrolyte distribution takes place, electrolyte being supplied via the inlet bore 3 to a slot 4 which extends vertically through the plate 2 and from which electrolyte passes to each individual electrode tool via the bores 7 and 8, and electrolyte being withdrawn from the workface via bores 10 and 11 to a vertical slot 12 extending through the plate 2, and thence via the bore 13 to the outlet hose 14. The working tip 9 of the electrode tool is surrounded by a masking frame 16 biased towards the workpiece by springs 18, and on either side of the tool are positioned sealing strips 20, 21 (shown formed of a rubber strip and a rubber labyrinth seal respectively), the sealing strips being biased towards the workpiece surface by means of springs 22.
Patent GB-394592-A (GB)
Title: Improvements in or relating to containers for storing and transporting solid-carbon di-oxide and other solid cooling or freezing substances
IPC: F25D3/12
Filed: 1932-12-16
Abstract: 394,592. Cold and heat retaining vessels. KœRTH, R., 17, Luisenstrasse, Neubabelsberg, Germany. Dec. 16, 1932, No. 35750. Convention date, Dec. 16, 1931. [Class 29.] Solid carbon dioxide &c. is stored in a heatinsulated portable chamber provided with means permitting the removal of the refrigerant from any part of the chamber without exposing the remainder to the outside air. The refrigerant may be stored in an inner compartment A having a jacket with passages formed by heatinsulating partitions for the flow of vapour formed in the inner compartment, the compartment having a honeycomb door m the apertures in which are closed by plugs z pressed home by springs y carried on the jacket door n. Similar doors may be provided at the opposite end of the chamber. In a modification, a rotary door with one or more apertures is provided on the inner compartment.
Patent GB-839040-A (GB)
Title: Improvements in or relating to electric central remote-control installations
IPC: H02J13/00
Filed: 1956-11-23
Abstract: 839,040. Electric selective signalling systems. LANDIS & GYR A.G. Nov. 23, 1956 [Nov. 26, 1955], No. 35835/56. Class 40 (1). An electric cyclic remote control installation in which each control cycle comprises a number of control periods each associated with a particular switch being controlled, and in which in each control period an impulse is transmitted either during the first half of the period or during the second half of the period to signal whether the associated switch should be closed or opened and to cause the switch to assume the signalled condition if its condition is not as signalled, is used in any cycle in which no switch has to change its condition to transmit additional data by selectively either sending a pulse or not transmitting a pulse in each control period. (Any pulse transmitted has to be in the appropriate half of its control period to ensure that the condition of the associated switch is not changed.) As described, Figs. 1 and 3, all pulses consist of a burst of audio-frequency current superimposed on the main power lines and each control cycle is initiated by a relatively long start pulse S, Fig. 1. The first two control periods (not numbered in Fig. 1) from time to to t1 are used to provide four pulse periods a, b, c and d, which select which of a number of receivers shall respond. Subsequent control pulses occur one in each control period 1, 2, 3 ... 11, either in the half marked E indicating " closed " or the half marked A indicating " open." At each receiver, Fig. 3, a relay K is provided, which together with a cam-controlled contact P examines each control period to see if a pulse (in either half) is contained therein. In a normal cycle there will be a pulse in every control period but when additional data is being transmitted this will not be so and the energizations of the relay K will correspond to the bits of the additional data. In operation the start pulse switches on a synchronous motor S. The receiver selecting pulses a, b, c, d close a contact f and subsequent control pulses energize a frequency-responsive relay R which closes a contact K1. At the beginning of each control period a contact P2 is momentarily closed to close a contact K2. At the end of each control period a contact P1 is momentarily closed to test contact K1. If contact K1 is closed, indicating that a pulse has been received in the control period, then a contact U1, U2 is changed over, otherwise, if no pulse has been received in the control period contact U1, U2 is not changed over. Specifications 594,361, 646,505, 667,842 and 795,954 are referred to.
Patent GB-784584-A (GB)
Title: Improvements relating to ammonia stills
Inventor: MUNRO GEORGE IAN
IPC: C01C1/10
Filed: 1954-12-13
Abstract: <PICT:0784584/III/1> Ammonia is stripped from ammonia liquor, such as is obtained in coke oven plants, by passing the liquor through a still counter-currently to a mixture of vapours and combustion gases which has been formed by burning a mixture of air and gas, obtained by carbonization of coal, in direct contact with the stripped liquor withdrawn from the still.  In the apparatus shown, stripped liquor from the base of column-still 2 flows through pipe 11 into combustion chamber 8.  Coke oven gas and air are forced by compressors, via pipes 5 and 6 respectively, to vertical pipe 7 which is open at the base and deeply immersed in the liquor in chamber 8.  The gas and air mixture is ignited, e.g. by means of a sparking-plug, and burns beneath the surface of the liquor.  The heat of combustion vaporizes a part of the liquor; and the mixture of steam and combustion gases, so obtained, passes through pipe 9 into the lower part of column 2. The mixture of steam and gases flows up the column, and strips the ammonia from liquor flowing down the column from the level of inlet-pipe 1.  A mixture of gases and ammonia leaves the top of the column through pipe 10. The over-flow from chamber 8 passes through pipe 12 into vessel 13 which is so arranged that the liquor-level in chamber 8 is maintained at a predetermined level while the overflow from vessel 13 is led away by pipe 14.
Patent GB-1583549-A (GB)
Title: Smoking article
IPC: A24D1/00
Filed: 1976-09-01
Abstract: A smoking product consisting of tobacco or the like, for example a cigarette, cigar or cigarillo, at least partially comprises a low-density filling material with a high degree of filling. The smoking product has means in order to channel air from the atmosphere into the smoke stream so that the number of draws necessary for smoking the smoking product is increased.
Patent GB-175497-A (GB)
Title: Improvements in anti-friction washers
IPC: F16B43/00
Filed: 1920-12-29
Abstract: 175,497. Beatty, E. Dec. 29, 1920. Ball bearings. - A ballbearing washer for use in bolting plates &c. comprises a ring 11 with a number of stub shafts radiating from it having enlarged heads 13. Balls 14 are rotatably mounted on the shafts. A flanged nut 9 is employed.
Patent GB-879446-A (GB)
Title: Process for the production of borohydrides
IPC: C01B6/00
Filed: 1959-10-27
Abstract: Borohydrides of alkali or alkaline earth metals are prepared by reacting hydrides of such metals, or mixtures of H2 and such metals with a boron compound in an inert suspending agent in the presence of specified boron compounds as catalysts.  The metal hydride may also be produced in situ by reacting acetylides and H2.  The boron compound reactants are boron fluoride, addition compounds of boron fluoride, with aliphatic ethers containing 1-12 C atoms, cycloaliphatic ethers, tertiary aliphatic amines, or pyridine, complex metal boron fluorides (Me(BF4)m), metal oxide-boron fluoride complexes (Me2O.4BF3), metal tetraalkoxyborates, metal trialkoxyborohyddrides, or borates of alkali or alkaline earth metals, boric acid, boron oxide, or boric acid esters, e.g. BF3, BF3(C2H5)2O, BF3. (CH3)2O, BF3.C4H8O, BF3.N(C2H5)3, or BF3. C5H5N. Catalyst compounds are of formula RnBX3-n.[N(Y)]z or (R2BH)2, where R is an aliphatic hydrocarbon radical containing 1-20 C atoms, n is 1, 2, or 3, X is H, F, Cl, Br, or I, N(Y) is a primary, secondary, or tertiary aliphatic or cycloaliphatic amine, a heterocyclic nitrogen base, or NH3, and Z is 0 or 1, e.g. B(C2H5)3, B(C3H7)3, B(C4H9)3, (C3H7)4B2H2, (C3H7)2BF, (C2H5)3B.NH3, (C3 H7)3B.NH3, (C2H5)3B.NH(CH3)2, (C2H5)3B.N (CH3)3, (C3H7)3B.NH(CH3)2, (C2H5)2BH.N (CH3)3, and (C3H7)2BH.N(C2H5)3.  These catalysts may be formed in sity by, e.g. (i) reaction of boron halides and metal alkyls, or metal alkyl hydrides; (ii) reaction of sodium borohydride, or hydride with a boron halide and an olefin; (iii) reaction of a trialkylamine borine and an olefin. The boron catalysts may be used concurrently with other catalysts, such as RO(CH2-CH2-O)mR compounds, where R is an aliphatic hydrocarbon radical containing 1-6 C atoms, pyridine, or tertiary amines, or phosphines, NR311 or PR311 where R11 is an aliphatic, cycloaliphatic, or aromatic hydrocarbon radical, e.g. dimethyl ethers of mono-, di-, and tri-ethylene glycol, triethylamine, tripropylamine, or triethylphosphine.  The suspension medium may be a mineral oil with a b.pt. above 150 DEG C., and may be diluted with lower boiling hydrocarbon, e.g. toluene.  The reaction temperature may be 50-600 DEG C., and catalysts may be present in amount 0.1-50%.  All examples relate to sodium borohydride.
Patent GB-814685-A (GB)
Title: Improvements in pallets
Inventor: GRANT CHARLES ALBERT
IPC: B65D19/40
Filed: 1956-11-30
Abstract: 814,685. Pallets for handling loads. BARTLETT MATERIALS HANDLING Ltd. Dec. 12, 1957 [Nov. 30, 1956], No. 36652/56. Class 78 (4). A wooden pallet is made by cutting key-hole shaped apertures 7, 7A, Fig. 3, in the boards 1 at the points where they cross the bearers 2, Fig. 2, inserting screws 5 in the bearers with their heads projecting a distance equal to the depth of the apertures 7, glueing the mating surfaces and engaging the boards with the bearers so that the heads of the screws 5 enter the apertures 7, and finally forcing the boards into the Fig. 2 position with the shanks of the screws in the apertures 7A and the heads buried in the wood, the edges 6B being sharp for this purpose.
Patent GB-1323012-A (GB)
Title: Dipentene beta-pinene copolymers
IPC: C08F10/00
Filed: 1971-08-04
Abstract: 1323012 Wax adhesives ARIZONA CHEMICAL CO 4 Aug 1971 [29 Sept 1970 2 July 1971] 36681/71 Heading C5W [Also in Division C3] Hot melt adhesive compositions comprise (Example 9) 2 p.b.w. microcrystalline wax, 2 p.b.w. ethylene/vinyl acetate copolymer and 1 p.b.w. of a copolymer of #-pinene and dipentene in a molar ratio of 19 : 1 to 1 : 19, the terpene copolymer having a molecular weight of 500 to 20,000.
Patent GB-854248-A (GB)
Title: Improvements in or relating to exhaust nozzle structures for jet propulsion engines
IPC: F02K1/82
Filed: 1958-11-17
Abstract: 854,248. Jet propulsion engines. WESTING- HOUSE ELECTRIC CORPORATION. Nov. 17, 1958 [Nov. 26, 1957], No. 36883/58. Class 110(3). An exhaust nozzle structure for jet propulsion engines comprises a tubular casing 11 forming a fluid passageway, a rigid tubular shell structure 15 communicating with the passageway to form an exhaust nozzle and a series of pressure-responsive mechanisms disposed opposite apertures 21 in the shell and each comprising a tubular housing 25 in registry with its respective aperture and containing a member such as the piston 26 movable by the difference between the exhaust fluid pressure acting on one side thereof and the ambient air pressure acting on the other side thereof to effect a change in the cross-sectional area of the exhaust nozzle opening. The shell structure 15, Fig. 1, comprises an outer cylindrical shell 16 with apertures 19 and an inner shell 17 of convergent-divergent shape, the shells together enclosing an annular space 20. Each piston 26 has a plate or dam 27 which moves through the aperture 21. An aperture 28 in the valve housing communicates with the ambient air in the space 20 so that when the exhaust gas pressure is lower than that in the space 20 the plate 27 is moved by the piston into the exhaust nozzle. Since the mechanisms are independent they will independently assume the positions at which optimum efficiency is obtained. In a second embodiment, Fig. 5, the liner 31 is extended aft to form the inner shell 17 and is joined to a secondary shell member 40 forming an annular passageway 41 which communicates with the turbine exhaust passage 14. The pressure-responsive mechanism is actuated as in the previous embodiment, and has bores 48 and 49 in the piston member which can pass pressurized gas from the passageway 41 as a jet into the exhaust nozzle to limit the effective area thereof when the radially innermost posi. tion, Fig. 7. The valve mechanisms are independent and some may be fully or partly closed to regulate the expansion of gas in the exhaust nozzle for optimum operation at all conditions. In either embodiment, when the afterburners 32 are in use, a central plug 35 is retracted into a fairing 13.
Patent GB-1285031-A (GB)
Title: Improvements in devices and processes for cleansing the bilge water in water craft
IPC: C02F1/76
Filed: 1968-08-02
Abstract: 1285031 Dispenser for dichlorophen R C DYER & CO Ltd and R C DYER 1 Aug 1969 [2 Aug 1968] 37100/68 Heading A5E [Also in Division C1] Bilge water is cleansed by partial or complete immersion therein of a porous or meshed container, such as a linen bag, containing finely divided dichlorophen.
Patent GB-767633-A (GB)
Title: Improvements in or relating to automatic volume control circuits in wireless receivers
IPC: H03G3/22
Filed: 1954-12-22
Abstract: 767,633. Automatic gain control. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Dec. 22, 1954 [Dec. 24, 1953], No. 37118/54. Class 40(5) An A.G.C. voltage-V is amplified by using it to vary the grid bias of an amplifier T provided with a constant A.C. drive on its cathode, derived from a transformer U. The output is rectified by a diode D1, smoothed by filter R, C and brought to a suitable level by means of a fixed negative source S and potentiometer R1, 2, the amplified A.G.C. voltage being taken off at P. A diode D2 prevents the voltage becoming positive. The resistor R1 may be omitted (Fig. 2, not shown). A delay may be obtained by connecting in the cathode circuit of the diode D2 either a fixed negative bias (Fig. 3, not shown) or a source of constant A.C. potential (Fig. 4, not shown). The control voltage so amplified and delayed may be applied to the input stage of a radio receiver, while the unamplified voltage is applied to subsequent stages.
Patent GB-1083117-A (GB)
Title: Photographic apparatus and composite roll film
IPC: G03B17/52
Filed: 1964-09-11
Abstract: 1,083,117. Apparatus for processing photographs. EASTMAN KODAK CO. Sept. 11, 1964 [Sept. 13, 1963], No. 37210/64. Heading G2A. In a photographic camera in which film is processed after exposure at an opening 60, the film 11 is wound round a spool 22 which contains the processing liquid 41 in an axial chamber, there being a duct 28 extending from this chamber to a metering applicator 30 which discharges the liquid through a nozzle 33 to form a bead 43 on the film. The film is fed from the spool so that a photo-sensitive sheet 13 passes into a chamber 56 where it is exposed, this sheet being hinged to a continuous strip which is fed between rollers 69, 70 into a chamber 57. After the sheet 13 has been exposed, the operator pulls out and returns a plunger 31 to draw liquid 41 into a valve closed chamber 34 and to discharge it on to the film. The strip is pulled out of a slot 66 causing the sheet 13 to be pulled between the rollers into the chamber 57, the rollers spreading the liquid evenly between the sheet and the strip. During the spreading operation the leading edge of the next succeeding sheet 13 is guided into the exposure chamber 56 by a stripper blade 48 and when this sheet is correctly positioned, the first sheet will be completely within the processing chamber 57. Excess strip material may be cut off by a blade 67. The stripper assembly may be modified so as not to move with the plunger.