baber/WOPTO huggingface dataset:
Patent GB-614560-A (GB)
Title: Improvements in electric circuits incorporating electronic discharge devices
IPC: H04N5/10
Filed: 1946-06-06
Abstract: 614,560. Television. R.F. EQUIPMENT, Ltd., and KEEN, A. W. June 6, 1946, No. 17243. [Class 40 (iii)] [Also in Group XL (c)] In a circuit for distinguishing between pulses of different length, a resonant circuit having a period in the order of four times the duration of the longer pulses is under-damped during pulses and over-damped when no pulse is applied. Fig. 14 shows an arrangement in which the pulses cause an abrupt change in the anode voltage of valve 15, which shock excites the damped resonant circuit comprising inductor 1, resistor 2 and capacitor 3, so that the voltage across capacitor 3 starts to rise in the manner indicated at 10, Fig. 4. Termination of the pulse causes valve 15 to damp the resonant circuit so that the voltage across capacitor 3 decays exponentially, as at 12 if the pulse is of length o-b (e.g. a frame pulse), or 11 for a pulse of duration o-a (e.g. a line pulse). The effect of pulses of the order of o-a is suppressed by connecting output terminal 21 to the capacitor 3 through a biassed diode 19. In a modification, Fig. 15 (not shown), the resonant circuit may be arranged as a parallel resonant circuit and connected in the anode circuit of valve 15. Various resonant networks for use with this arrangement and that of Fig. 14 are described.
Patent GB-1146093-A (GB)
Title: Improvements in or relating to devices for measuring the pressure of gases and vapours
IPC: G01L21/12
Filed: 1967-04-14
Abstract: 1,146,093. Pirani gauges. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. April 14, 1967 [April 19, 1966], No.17255/67. Heading G1N. In a Pirani gauge for measuring pressures above 10 Torr the envelope is hemispherical as shown Fig. 1, or cylindrical with its axis horizontal, the upper wall having a radius R of 1 to 10 cms, and the distance h of the horizontal heated wire 1 from the upper wall is at least 0À5 cm. The wire forms one arm of a bridge network and the voltage across the wire to maintain the bridge balanced is indicative of the gas pressure in the envelope. The configuration stabilizes the convection pattern in the envelope. An auxiliary heating wire may be located vertically below the measuring wire 1, which is supplied with a controlled voltage or current, to modify the convection pattern.
Patent GB-847168-A (GB)
Title: Improvements in or relating to lighting devices employing tubular lamps using current supplied at high voltage
IPC: G03B21/20
Filed: 1958-05-30
Abstract: 847,168. Door fittings for lantern casings. BAUER G.m.b.H., E. May 30, 1958 [June 1, 1957], No. 17259/58. Class 75(4). A lighting device for cinematograph projectors or lanterns having an ignition circuit and an operating circuit, comprises a tubular lamp requiring the application of a high voltage for ignition located in a housing 1 having one or more access doors 8, 9 adapted to be fastened in closed position and having associated therewith a push button switch 14 (or 15) which must be closed by closure of the access door 8 (or 9) before the ignition circuit of the lamp can be completed but which may subsequently be opened during operation of the lamp without interrupting the operating circuit. The doors 8, 9 are each double walled and hinged at the top to the housing 1; switches 14, 15 associated with the doors comprising push buttons 16 which complete the circuit across terminals 17, 18 when the door is closed. The doors are fastened by catches 22 having hooked ends 23 which engage behind abutments 27 on the housing and are biased to closing position by springs 25. The catches are released by finger pressure through apertures 29 in the doors. The switches 14, 15 are arranged in series with one another and with a starting switch.
Patent GB-126085-A (GB)
Title: Improvements in or connected with the Construction of Aircraft Wings and Aerofoils.
Inventor: MAYROW JAMES JACOB
IPC: B64C3/00
Filed: 1916-12-05
Abstract: 126,085. Mayrow, J. J. Dec. 5, 1916. Framework; planes, construction of. - Metal girders, wing spars and ribs, struts, stretchers, runners, and other parts of aviation apparatus of the kind described in Specification 8522/12 are made from one or more bars of U, C or like section riveted, welded, or clinched to one or more webs formed with transverse corrugations, flutings, or bosses. The corrugations &c. may be arranged on one or both edges and may extend wholly or partly across the web; further, the corrugations &c. may project in the same or opposite directions, and may be arranged at rightangles or at an inclination to the edges. The spars &c. may be tapered longitudinally. The spar shown in Figs. 8 and 9 consists of top and bottom U-section bars 5 riveted to a web having corrugations 1 which are formed alternately on opposite edges and extend only partly across. The corrugations are separated by flat or slightlycurved parts 2, and are formed with flats 3 to engage the bars 5. Two such spars may be riveted together side by side. The U-section bars may be built up from angle-irons riveted to a plate. Fig 44 shows a strut, stretcher or runner in which a web, formed with corrugations 1 and bosses 6, is riveted at one edge to the U-section bar 5, the free edge 2<a> being left plain or, as shown, scrolled. Figs. 14 and 15 show a spar in which two corrugated webs, formed with inclined corrugations 1 separated by flats 2, are riveted at the top and bottom to two U-section bars 5. The corrugations and flats on each length are arranged as shown in Fig. 15 in panels inclined in opposite directions, and adjacent panels on the two webs are inclined in opposite directions. The U-section bars may be formed with perforations and with stiffening-ridges. Perforations may also be formed in the webs. Fig. 29 shows two webs which are formed with bosses 6 and are secured together by rivets 4 passing through flat parts 2, the plain cages 2b of the webs being bent to engage the flanges of C-section bars 5. The cages 2<b> may be formed with stiffening-bosses which may run into the flat parts 2 or the bosses 6. Frameworks for wings and wing-flaps are built up from the girders, spars, &c., described above, and are suitably wired. At places where attachments are made to the spars, &c., the webs may be strengthened by stampings shaped to fit the corrugations. The trailing and leading edges may be formed by a U- section member which may be corrugated. A rudder-framework may comprise ribs formed from a Z-section member riveted at the top and bottom to webs, the periphery of the framework being formed from a curved U-section bar which is riveted to two webs such as are shown in Fig. 44.
Patent GB-616001-A (GB)
Title: Improvements in or relating to water heating systems
IPC: F24H1/52
Filed: 1946-06-12
Abstract: 616,001. Heating water. ARNKVAERN, A. June 12, 1946, No. 17555. Convention date, May 31, 1943. [Class 64(iii)] A water heater comprises a reservoir 1 of heated water which heats water flowing through coiled tubes 2 immersed in the water in the reservoir, and an inclined trough 4 adjacent to and spaced from the lower part of the coiled tubes, so that the water in the reservoir cooled by the tubes will flow along the trough towards the bottom of the reservoir without again touching the tubes. A pipe 5 leads downwardly from the lower end of the trough 4. The trough and pipe may be made of or covered with heat insulating material. The trough may be V-shaped or semi-circular in cross-section, and contain a grill or other means for supporting the tubes 2.
Patent GB-914971-A (GB)
Title: A pressure-tight electrically continuous flexible coupling for pipes and tubes
Inventor: LAMONT BOYD NEIL ROBERT
IPC: F16L25/01
Filed: 1960-05-18
Abstract: 914,971. Pipe couplings. BLAKEY'S BOOT PROTECTORS Ltd. June 30, 1961 [May 18, 1960], No. 17562/60. Class 99(1). A pressure-tight electrically continuous flexible coupling includes a composite metal and resilient sealing unit juxtaposed between the flared or taper bored end 5 of a sleeve 1 or analagous outer member and a union nut 6 screwing upon the sleeve, the sealing unit comprising a rubber collar 9 of frusto conical form and a split metal ring 8 secured to the collar, these two parts having a bore greater than the outside diameter of the co-acting pipe 10. Tightening of the nut compresses the resilient portion of the sealing unit to grip the pipe and simultaneously forces the metal ring 8 into contact with the pipe.
Patent GB-356751-A (GB)
Title: An improved educational appliance for teaching and studying music
IPC: G09B15/02
Filed: 1930-06-06
Abstract: 356,751. Teaching music. APPIA, T. A., 15, Beckmann Place, New York, U.S.A. June 6, 1930, No. 17613. Convention date, June 6, 1929. [Class 88 (ii).] A device for teaching and studying music comprises a base 22, partitions 25, and a panel 27 which has openings 28 and a blackened horizontal stave 29. The partitions are grooved at 26 to receive sliding cards 36 bearing musical symbols for co-operation with the various lines and spaces of the stave. A dummy keyboard 31 may be hinged to the device, and a portion 30 provided for use as a writing area. A number of symbols on separate small slides 53 .. 56, Fig. 10, may be mounted on one sliding card, enabling chords to be shown, the small slides being guided in complementary slots 52, and being of different sizes so as to nest into one another as shown in Fig. 12. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a device, shown in Figs. 18 (Cancelled) and 20 (Cancelled), and exposing one chord only at a time, wherein the base has a number of guide grooves at one side, the superposed cards 65 extending through slots at the other side for manipulation by finger-pieces 68. This subject-matter does not appear in the Specification as accepted.
Patent GB-1448348-A (GB)
Title: Conduit bushes
IPC: H02G3/06
Filed: 1974-04-23
Abstract: 1448348 Coupling pipes to walls; bolts N G BAILEY & CO Ltd 16 Jan 1975 [23 April 1974] 17695/74 Headings F2G and F2H A smooth bore bush for use in securing the end of an electrical conduit to a conduit box, comprises a body 1 having an external screw thread 2 and, at one end, a flange 4 projecting radially outwardly, the flange 4 being of generally circular cross-section and being interrupted by at least one radially inwardly directed recess 6. The recesses may be triangular or semicircular but are preferably rectangular, with four such recesses spaced equiangularly around the flange. The smooth internal bore 3 merges with the flange 4 by way of an arcuate portion 5, the latter not being intersected by the recesses 6. The bush can be screwed into a coupling 11 whose other end (not shown) may be screwed on to a length of conduit, the bush being tightened by using a tool provided with both a central boss for insertion into the bush, and with pegs to engage two opposed recesses 6.
Patent GB-313959-A (GB)
Title: Improvements in starters for direct current motors
IPC: H02P1/02
Filed: 1929-06-08
Abstract: 313,959. Kabushiki-Kaisha Hitachi- Seisakusho. June 20, 1928, [Convention date]. Starters with no-volt release.-In a motorstarter with a no-volt release detent the detent is made proof against accidental release in the event of mechanical shock, by mounting the detent 8 pivotally near the end of a spindle 7, and providing means such as a push-piece 17 attached to the starter-arm H for turning the spindle through 90‹ when the starter-arm is moved to its full-on position. The detent then remains in engagement with a hook 2 and cannot yield on its pivot until the spindle has come back to its original angular position. The return of the spindle is effected automatically by a spring 18 upon the failure of a no-volt magnet M and the consequent movement of an armature 14 by a spring 19.
Patent GB-674970-A (GB)
Title: Improvements in or relating to electric lamps
IPC: H01K1/18
Filed: 1949-07-05
Abstract: 674,970. Electric incandescent lamps. RICCOMAGNO, G. July 5, 1949 [Feb. 4, 1949], No. 17759/49. [A Specification was laid open to inspection under Sect. 91 of the Acts, Jan. 7, 1950.] Class 39(ii) The filament of a lamp constructed to withstand centrifugal stresses when rotated at high speed, is supported by a frame constituted by two electrodes 13 in the form of parallel bars providing support for two bridge members or cross-braces 14 of insulating material carrying hooked wires 15 around which an uncoiled filament 16 is tentioned, the respective ends of the filament being welded to the adjacent electrode 13. An insulating screen 17 of mica or like material may be mounted between the lower end of the filament and the adjacent bridge 14. In a modification, Fig. 3, (not shown), the insulating bridges 14 are replaced by rings or annular members of insulating material.
Patent GB-936714-A (GB)
Title: Improvements in or relating to a continuous casting system with reciprocating mould
Inventor: STEIGERWALD KARL HEINZ
IPC: B22D11/053
Filed: 1962-05-09
Abstract: 936,714. Continuous casting - machines. ELTHERMA A.G. May 9, 1962, No. 17799/62. Class 83 (1). In a continuous casting-machine with a reciprocating mould pressure is applied to the shrinkage gap between mould and casting when they are moving in opposite directions in order to reduce friction between these parts during this period. Pressure air or protective gas is applied to a chamber 18 at the exit end of the mould from a pressure chamber 22, and a reduced pressure is applied to the chamber 18 by a vacuum chamber 20 during the period when the mould and casting move in the same direction, so as to influence the casting into engagement with the mould and increase the cooling effect. The changeover valve 30 may be mechanically coupled to the mould oscillating mechanism, or otherwise operated in synchronism with the mould reciprocation cycle. In a modification, Fig. 2, the chamber 18 is divided into three sub-chambers 34, 36, 38, and to decrease still further the friction between mould and casting, high-frequency pulsations are imposed upon the pressure-reduced pressure cycle by an acoustical generator 56 operating a diaphragm 62. The pulsation may be also applied to a chamber 66 at the entrance end of the mould. The vibrations may be induced by a generator coupled mechanically to the pouring spout.
Patent GB-955881-A (GB)
Title: Novel phenylnitromethane compounds and derivatives thereof
Inventor: HACKMAN JOHANNES THOMAS
IPC: C07C205/09
Filed: 1961-05-16
Abstract: The invention comprises 2,6-dichlorophenyl-nitromethane, its a -monochloro and -monobromo derivatives and the corresponding aci-tautomers, as well as the alkali metal, ammonium and hydrocarbyl derivatives of the aci-form. Reaction of a 2, 6-dichlorobenzyl halide with an inorganic nitrite gives the phenylnitromethane in admixture with the corresponding benzyl nitrite and benzyl alcohol; a nitrite ester scavenger is preferably used in the reaction, various phenols and amines being specified. The alkali metal salts are prepared from 2,6-dichlorophenylnitromethane with alkali metal carbonate, hydroxide or alkoxide; the ammonium salts are obtained from the aci-tautomer (formed from alkali metal salt with acid at 0 DEG C. or below) by treatment with ammonia, an amine or a heterocyclic nitrogenous base. The said monochloro and monobromo compounds are prepared from alkali metal salt of aci-tautomer with chlorine or bromine in an inert solvent. The hydrocarbyl derivatives are prepared by reacting the said alkali metal salt with a hydrocarbyl halide, an alkyl arylsulphonate or a dialkyl sulphate. The alkali metal salt, by treatment with acetyl chloride and simultaneously or subsequently ammonia, gives 2,6-dichloroa -amino benzaldoxime; its hydrochloride forms by reaction with HCl in dry ether. By product 2,6-dichlorobenzyl alcohol (in admixture with the phenylnitromethane) may be converted to the benzyl chloride with thionyl chloride. Specification 953,554 is referred to.ALSO:Herbicidal compositions comprise 2,6-dichlorophenylnitromethane, or its a -monochloro or -monobromo derivative, the corresponding aci-tautomers or the alkali metal, ammonium or hydrocarbyl derivatives of the aci-form, together with a solid or liquid carrier and/or a surface active agent; they may be formulated as dusts, wettable powders, emulsifiable concentrates or aqueous dispersions or emulsions of oil in water or water in oil type.  The Specification lists the usual solid and liquid carriers, and surface active agents; sodium polyphosphates, cellulose ethers and unspecified sequestering agents, pesticides (e.g. herbicides) and non-volatile oil is also mentioned.  The invention comprises also a method of controlling wild oats in a growing barley crop by pretreating the crop area containing wild oat and barley seeds with 2,6-dichlorophenylnitromethane.  Resinous and waxy carriers are specified, bitumen and asphaltite.
Patent GB-182478-A (GB)
Title: Improvements in or relating to alternating-current power transmission systems
IPC: B63H23/24
Filed: 1922-06-28
Abstract: 182,478. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Pierce, R. T.). June 30, 1921, [Convention date]. Dynamos and motors combined for transmitting power; regulation, automatic systems and apparatus for.-Relates to systems in which generators and motors are adapted to be connected in a number of wavs and consists in means for indicating the stability of excitation of the generators and for controlling this excitation whatever way the machines are connected. A three-phase system for electrically-propelled battleships is shown in which both generators 1, 2 can be connected up to all the motors 3, 4, .5, 6 with twenty-four poles effective, or either generator can be coupled with all the motors either with twenty-four or thirty-six poles working. To make the first connection, the generator switches 9, 10, the main switches 7, 8 and the motor switches 12, 14, 15 and 17 are closed, and as a consequence the auxiliary switches 82, 83, 80, 81, 85 and 86. The current transformers 35 and 36 supply current to the electromagnets 74 of the stability indicators 30 and 31 and of the relays 33 and 34, while the other elements 75 of these devices receive current from the autotransformer 42 proportional to the potential difference between the generators, the secondaries of the voltage transformers 38, 39 being connected to these elements 75 and to either end of the auto-transformer. Departure from mean stability causes one or other of the arms 56 on the relays to move into contact with a fixed arm 54 or 55 and complete circuit for electromagnets 59 and 60 which then complete circuits for the supply circuits 52 and 53 to operate the motors 44, 45 of the rheostats 27 and 28 whose variation affects the excitation of the field windings 21 and 22 of the generators. In all three cases the connection of the machines ensures through the switches provided that the stability devices will operate.
Patent GB-1217736-A (GB)
Title: Laminating machine
IPC: B32B37/18
Filed: 1968-04-16
Abstract: 1,217,736. Laminating press. AVANT Inc. 16 April, 1968 [19 April, 1967], No. 17834/68. Heading B5N. A press for laminating plastics cards 1 comprises a frame 36, means for supporting the cards stationary with respect to the frame, means for heating and pressing the cards, and control means which may include a movable carriage 6, for sequentially exposing the sheet first to the heating means and thereafter to the pressing means. Preferably the press includes means for applying pressure during cooling to prevent curling. As shown, in Fig. 1 a press is in its starting position and the card assembly 1 lies on a tensioned belt 2 which is coupled to a press platen 3 and, via tensioning spring 11, to the frame 36, and which lies adjacent to platens 3, 4 on the movable carriage 6. Straps 12, 13 (Fig. 2) wound round the platens and attached to the frame 36 at 16, 22 respectively, apply forces to the carriage such that rotation of the platen 3 by a handle 23 causes translation of the carriage 6 and rotation of the platen 4. In operation, clockwise movement of the handle 23 causes the platens to roll over the card and moves the carriage 6 to the right, bringing electric radiant heaters 26, 27 over the card. Subsequent anticlockwise movement of the handle 23 causes the platens to roll back over the card, thereby applying laminating pressure. Eventually carriage 6 pushes against a bar 31 Fig. 5) not shown) whereby an arm 34 swings about a pivot 37 and pushes on a rod 39, thereby pressing a flattener 41 (e.g. a foam sheet) against the card assembly. The press is then brought back to the initial position by clockwise movement of handle 23. The lower platen 4 may be omitted, in which case support means must be provided for the card assembly 1.
Patent GB-1137506-A (GB)
Title: Isolation of cyclohexane oxidation products
Inventor: POUNDER ALAN
IPC: C07C7/04
Filed: 1965-04-28
Abstract: 1,137,506. Oxidation. IMPERIAL CHEMICAL INDUSTRIES Ltd. 18 March, 1966 [28 April, 1965], No. 17896/65. Heading C2C. In a process for the oxidation of cyclohexane in the liquid phase at elevated temperature and pressure with a gas containing molecular oxygen to form mixtures containing cyclohexanol and cyclohexanone, the major part of residue cyclohexane is removed by distillation in the absence of added water, followed by the addition of water, optionally as steam, and the removal of the remaining cyclohexane as an azeotrope with the water. At least 50% of the cyclohexane, preferably from 85-98% by weight of cyclohexane, is removed in the absence of added water and the product may be further oxidized with nitric acid to adipic acid.
Patent GB-1363580-A (GB)
Title: Unsaturated polyester resin compositions
IPC: C08F2/50
Filed: 1972-04-18
Abstract: 1363580 Unsaturated polyester resin compositions SOC ITALIANA RESINE SIR SpA 18 April 1972 [30 April 1971] 17949/72 Heading C3P A stable photochemically curable unsaturated polyester resin composition comprises: an unsaturated polyester resin in a quantity of 30 to 80% by weight of the composition, the resin being constituted by the mixture of one or more vinyl monomers, in a total amount not exceeding 50% by weight of the composition, with the product obtained by condensation of a polyhydroxy alcohol with a polycarboxylic acid, one or the other being non-aromatically unsaturated, together with a saturated acid and the resin having a viscosity, measured with a Hubbelhode viscosimeter, of from 600 to 1500 cps. at 25‹ C.; an inert filler in a quantity of 20 to 70% by weight of the composition; a compound which decomposes under the action of light in a quantity of 0À2 to 5% by weight of the composition; a compound of the general formula in which R1, R2, R3 and R4 represent alkyl, aryl or aralkyl radicals while X represents a halogen, in a quantity of 0À005 to 1 part by weight with respect to 100 parts by weight of the unsaturated polyester resin. In the examples the compositions comprise a polyester prepared from phthalic anhydride, maleic anhydride and propylene glycol, styrene, hydroquinone, paratertiarybutylcatechol, copper naphthenate, benzoin isopropylether, trimethylbenzylammonium chloride, propylene glycol, talcum, barium sulphate, calcium carbonate, asbestine and silica. They are cured using cobalt octoate and methylethylketone peroxide, by. heating in a glass phial or by spreading on a glass slide and exposing to a lamp.