baber/WOPTO huggingface dataset:
Patent GB-1370495-A (GB)
Title: Power switching means
IPC: H02M7/515
Filed: 1972-01-12
Abstract: 1370495 Control of inverters BORG-WARNER CORP 12 Jan 1972 [4 Feb 1971] 1399/72 Heading H2F Gating apparatus for at least 2 solid state power switch devices comprises at least two D.C. supplies, a plurality of switching units, one for each of the power switches each coupled to the gate electrode of a different one of the power switches and to one of the power supplies and means for controlling the switching of each of the switching devices. A 3-phase inverter, Fig. 1, may be provided comprising a polyphase S.C.R. bridge 10 consisting of three arms 11A, 11B, 11C comprising main rectifiers 14A-16C adapted to provide 3-phase A.C. at points A, B, C from a D.C. applied at 12C, 12D, switching off of these rectifiers being aided by a commutating L-C circuit 30, 32 with two auxiliary S.C.R.'s 26A-280 associated with and connected in parallel with each bridge arm. Gating of the S.C.R.'s is effected using the circuits schematically shown in Fig. 2B. A variable frequency oscillator 52, 53 of the relaxation type including a unijunction transistor provides an input to a three-phase, squared wave integrated circuit generator 54 the 3-phase outputs of which are amplified in further integrated circuit devices and applied as switching signals to pulse circuits 55 including transistors, the outputs of which are transformer coupled to various multivibrator circuits; i.e. flip-flops associated with the main thyristors and monostables with the auxiliaries. Two such pulse circuits are associated with each phase both adapted to give outputs and slightly delayed outputs, one giving outputs at rising flanks of the square wave signal and one at falling flanks. As shown each switch unit 61-76 is powered via a separate D.C. supply although all those associated with thyristors 14A-140 could be supplied from one source and all those with thyristors 16A-160 from a second source, which sources are preferably derived via full-wave rectifier bridges driven by separate secondaries associated with a single primary winding to which mains A.C. is supplied, in operation, with e.g. thyristor 16A conducting. At a first point in time, the square wave changes polarity and the undelayed pulses from the circuits 55 reset flip-flop 562 to turn off 16A and trigger monostable 571 to turn on thyristor 28A for a short time to aid in the commutation and after a delay period, flip-flop 561 is set to turn on thyrstor 14A. When polarity changes again, flip-flop 561 is reset and monostable 571 is fired to turn on thyristor 26A and thyristor 16A is turned on again after the delay period via setting of flip-flop 562.
Patent GB-1028311-A (GB)
Title: Improvements in or relating to the manufacture of shoes
Inventor: RALPHS GEORGE TREVOR
IPC: A43D3/02
Filed: 1961-01-13
Abstract: 1,028,311. Boots &c. RALPHS UNIFIELD Ltd. Jan. 13, 1961 [Jan 13, 1961 (2)], Nos. 1445/61 and 1447/61. Heading A3B. A shoe is made by using a pre-formed sole and heel unit which is accurately positioned on the insole by locating means on the insole which are also used to position the insole on a last for assembly with an upper. The insole 10 may be located on the upper by engaging slots 12, 13 in the insole with pegs 14, 15 on the last 16, the heel end of the upper 11 then being lasted to the insole. The removal of the last from the upper is facilitated by making the pegs 14, 15 shorter than the slots 12, 13. The sole and heel unit (not shown) may be located by using the same slots in the insole and pegs 26, 27, of the same size as the slots, situated at the heel, or by a different set of slots and pegs. The sole and heel unit may be formed by attaching a heel flap on the sole to the breast face of the heel, or by shaping the end of the sole to match a complementary recess in the heel.
Patent GB-562492-A (GB)
Title: Stoves for houses
IPC: F24H1/50
Filed: 1943-01-28
Abstract: 562,492. Heating water ; heating air. FABER, O., and KELL, J. R. Jan. 28, 1943, No. 1453. [Classes 64 (i), 64 (iii) and 123 (ii)] A hot water cylinder 12 for the supply of domestic hot water is heated either directly or indirectly by the water in a boiler 1, and is surrounded by a casing 7 through which air is heated for supply to the house. The smoke flue from the boiler may pass through the casing. Hot water from the boiler or from the cylinder may circulate through radiators.
Patent GB-999667-A (GB)
IPC: F02B55/10
Filed: 1962-01-15
Abstract: 999,667. Rotary piston engines. I. LAING. Jan. 15, 1962 [Jan. 13, 1961; Jan. 19, 1961], No. 1486/62. Heading F1F. [Also in Division F4] Cooling fluid circulated through passages 11, 12, in the housing 2 and/or piston 1 of a rotary piston machine is cooled in a heat exchanger rigidly connected to a rotating part of the machine, the heat exchanger comprising hollow fan blades 22 which communicate with said passages and which on rotation of the heat exchanger induce a flow of air thereover. As shown, an I.C. engine of epitrochoidal type has a three-sided piston which rotates about an eccentric portion 4 of a fixed shaft 5 and in operation the housing and piston rotate at different speeds, drive being taken from a shaft 20 which is fixed to the housing and rotates on the fixed shaft 5. The heat exchanger is mounted on the housings and cooling fluid from the interior of the latter passes through apertures 30 into a space 28 containing impeller blades 28 which force the fluid upwardly through some of the fan blades. The fluid returns through the remaining blades to a space 26 whence it passes through the housing around a partition 35 and through apertures 16, 18 into the interior of the piston which it leaves through apertures 13, 14. In the embodiment of Figs. 5 and 6 (not shown) the housing is fixed and the piston shaft is driven, the heat exchanger being secured to this shaft. The impeller 28 may be replaced by a positive displacement gear wheel pump in the interior of the piston (Figs. 8 and 9, not shown). Specifications 999,666; 999,668 and 999,669 are referred to.
Patent GB-100055-A (GB)
Title: Method of Constructing Turbine Stators.
IPC: F01D9/02
Filed: 1916-02-01
Abstract: 100,055. Maschinenfabrik Oerlikon. Feb. 3, 1915, [Convention date]. Drawings to Specification. Nozzles.-Relates to turbine stators having long radial vanes for elastic working-fluids in the expansion of which the critical pressure ratio is exceeded, and consists in forming these vanes by rolling or drawing into bars of uniform section and then milling or planing them off in such a way that the ratio of the minimum width of the passages between the vanes to the outlet width is uniform throughout the whole length of the vanes, the cross-section of the finished blades at the outer ends of their fluid operative surfaces being the same as the uniform section of the unshaped bars.
Patent GB-562802-A (GB)
Title: Improvements in or relating to catamenial pads
IPC: A61F13/64
Filed: 1944-02-22
Abstract: 562,802. Catamenial pads. GALWAY, T. G. Feb. 22, 1944, No. 1526/43. [Class 81 (ii)] A catamenial pad comprises a wad b of absorbent material, e.g. bleached or unbleached cotton, positioned within a length of tubular knitted material a, the free ends of which are slit inwardly at each end of the wad and twisted to form suspension cords c which are knotted at e, adjacent the ends of the wad, causing the pad to assume a boat-like form. The sides of the pad may be curved to the limbs and the pad may be shallower at its after part.
Patent GB-816335-A (GB)
Title: Liquid dispersing system
IPC: B05B1/26
Filed: 1956-01-17
Abstract: 816,335. Contacting gases with liquids. AJEM LABORATORIES Inc. Jan. 17, 1956 [Jan. 19, 1955], No. 1578/56. Drawings to Specification. Class 55 (2). [Also in Group XXIX] A spraying device (see Group XXIX) which disperses a large volume of fine water droplets is used to wash the exhaust air from scarfing operations &c. before it is passed through air washing machines such as disclosed in Specification 754,927. Specification 724,617, [Group XXIX], also is referred to,
Patent GB-974108-A (GB)
Title: Process for the production of dyeings or prints of metalliferous azo-dyestuffs on textile materials
IPC: C09B45/34
Filed: 1961-01-13
Abstract: Metallised azoic dyeings or prints are formed on textile materials by forming on the fibre a dyestuff containing one of the groupings: <FORM:0974108/D1-D2/1> , <FORM:0974108/D1-D2/2> <FORM:0974108/D1-D2/3> or <FORM:0974108/D1-D2/4> in which A represents a 5- or 6-membered heterocyclic ring, and after-treating at a raised temperature with an aqueous bath containing a salt of copper, nickel or cobalt, a compound capable of forming a metal complex with copper, nickel or cobalt and a detergent or a dispersing agent.  As an alternative, the after-treating solution may contain a compound capable of splitting off an alkali on heating, whereupon the after-treated material is finally steamed, and this modification is preferred when a discharge paste is printed on the azoic dyeing before steaming.  Suitable complex-forming compounds are alkali metal phosphates, alkanolamines, aliphatic dicarboxylic acids, aliphatic hydroxycarboxylic acids and aliphatic amino-carboxylic acids, and numerous examples are given.  Suitable detergents or dispersing agents are fatty alcohol polyglycol ethers, fatty acid amide polyglycol ethers, fatty acid polyglycol esters, alkyl-phenol-or alkyl-naphthol-polyglycol ethers, condensation products of an aminoalkyl- or hydroxyalkyl-sulphonic acid with a high molecular weight fatty acid and alkyl-aryl-sulphonates.  The azoic dyeings or prints are obtained by coupling a diazotised 2-(21-aminoaryl)-4:5-arylene-1:2:3-triazole or -1:2:3-triazole-1-oxide, 1- or 5- (21-aminoaryl) -1:2:3:4-tetrazole, 2- (21-aminoaryl) -1:3:4-triazole, -1:3:4-oxidiazole or -1:3:4-thiodiazole, 8-aminoquinoline, 3- or 7-aminoindazole, 7-amino-benzimidazole or-benztriazole, 1-aminocarbazole, 2- (21-aminophenyl) -benzimidazole or -benzthiazole, 4-aminobenzo-2:1:3-thiodiazole or 3- amino-1-phenyl-5-amino-4:5-dihydro-1:2:4-triazole with an arylide of an aromatic or heterocyclic o-hydroxy-carboxylic acid, an acyl-acetic acid arylide or other aromatic or heterocyclic hydroxy-compound or compound containing an enolised or enolisable keto-methylene group in a heterocyclic ring and capable of coupling in a position vicinal to a hydroxy group.  The process may be applied to textiles of cotton, regenerated cellulose, wool, silk, acetate rayon, polyamides or polyvinyl alcohol.  Examples of the dyeing and reductive discharge printing of cotton are given.
Patent GB-788943-A (GB)
Title: Improvements relating to self-sterilising surfaces
IPC: A01N47/26
Filed: 1955-01-19
Abstract: A synthetic resin composition, e.g. a paint, has incorporated therein an admixture of an alkyl thiuram sulphide, e.g. tetra-methyl-thiuram-disulphide and a silicone, e.g. mono-sodium-mono-methyl-siliconate, to render it anti-microbial. In examples, the mixture is incorporated into polyvinyl chloride stabilized with lead stearate and plasticised with dibutyl phthalate and the composition sheeted, and also into an aqueous emulsion of polyvinyl acetate plasticized with dibutyl phthalate containing aggregate and pigment.ALSO:A cement mix has incorporated therein an admixture of alkyl thiuram sulphide, e.g., tetra-methyl-thiuram-disulphide and a silicone, e.g., mono-sodium-mono-methyl-siliconate to render it anti-microbial.ALSO:An anti-microbial composition comprises an alkyl thiuram sulphide, e.g. tetra-methyl-thiuram-disulphide and a silicone, e.g. monosodium - mono - methyl - siliconate incorporaated in a base substance, e.g. synthetic resin, paper, cement, textile or paint.
Patent GB-1477121-A (GB)
Title: Floor sweeper
IPC: A47L11/33
Filed: 1976-01-15
Abstract: 1477121 Floor sweepers; rotary brushes LEIFHEIT INTERNATIONAL GUNTER LEIFHEIT GmbH 15 Jan 1976 [24 Jan 1975] 01629/76 Headings A4F and A4K [Also in Division F2]  In a hand-operated floor sweeper, e.g. carpet sweeper 10, having running wheels 19 driving a brush roller 21, either directly or via friction wheels 22 (as shown), gear wheels or other drive transmitting means to sweep dirt into containers 20, the roller has a shaft comprising two parts 16', 16" which are rotatable relative to one another so that the sweeper can be pushed easily in a curved path. As shown in Fig. 2 a spindle 24 may be provided to fit tightly in part 16' but only loosely in part 16" to permit relative rotation. In a modification Fig. 3 (not shown) the spindle is fitted loosely in both parts 16', 16" and is supported by a device for adjusting the height of the roller. Alternatively reduced end sections 32', 32" of the shaft parts may be connected by a sleeve 33 carrying bristles 25, as in Fig. 5, or the parts may be connected by a snap-fit ball and socket joint Fig. 6 (not shown).
Patent GB-571408-A (GB)
Title: Improvements relating to speed governors
IPC: G05D13/00
Filed: 1944-01-28
Abstract: 571,408. Fluid-pressure servomotorcontrol systems. LAGONDA, Ltd., (formerly WYNDHAM HEWITT, Ltd.), and GREEN, G. W. A. Jan. 28, 1944, No. 1648. [Class 135] [Also in Group XXVI] A governor for a prime mover manually adjustable to different speeds over a wide range comprises a fluid-circulating pump 1, Fig. 2, a speed-sensitive member such as an aperture 6 in the pump circuit exerting a pressure varying approximately as the square of the speed of the prime mover which in this form drives the pump, means for exerting a force under manual control independent of the speed and torque of the prime mover, e.g. an adjustable spring 9 acting on a valve 8 in the pump return circuit, and pressure sensitive means as the loaded piston 13 responsive to the sum of the two forces and operatively connected to the torquecontrolling member of the prime mover. Fig. 3 shows apparatus in which the pump 1 is independently driven and the speed-sensitive member is a rotary impeller 6a giving a back pressure proportional to the square of the velocity. The impeller may be replaced by a rotary valve, this valve and the impeller being driven by the prime mover. Specifications 529,760 and 555,630 are referred to.
Patent GB-897839-A (GB)
Title: Improvements in the preparation of resins
IPC: C08F212/08
Filed: 1961-01-16
Abstract: Thermoplastic resins are made by copolymerizing in a suspension medium, e.g. water, a mixture of a styrene, an itaconic diester and acrylonitrile which contains from 3 to 20% by weight of acrylonitrile.  Styrene monomers specified are styrene, o-, m and p methyl styrenes and 2,4-, 3,4- and 3,5-dimethyl styrenes. Itaconic diesters specified are the dimethyl, diethyl, di-n-propyl, diisopropyl, dibutyl, diisobutyl, dicyclohexyl, ethyl propyl and ethyl cyclohexyl itaconates.  The suspension polymerization in water may be carried out with the aid of a suspending agent, e.g. an alkaline earth carbonate, phosphate or silicate, talc, starch, gelatin, salts of polyacrylic and polymethacrylic acids, salts of styrene-maleic anhydride copolymers, polyvinyl alcohol, pectin, alginates, methyl hydroxyethyl and carboxymethyl celluloses, gum acacia and gum tragacanth.  The examples describe the use, as a suspending agent, of a slurry of calcium hydroxyphosphate in water which contains sodium, dodecylbenzene sulphonate.  Polymerization may be catalyzed by peroxidic compounds such as benzoyl, lauroyl and di-tert. butyl peroxides and tert. butyl perbenzoate.
Patent GB-723518-A (GB)
Title: Improvements relating to gas turbine plant providing a continuous supply of hot compressed air
Inventor: GREY JOHN CONSTANTINE
IPC: F02C6/06
Filed: 1951-06-28
Abstract: 723,518. Gas turbine ptant. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. May 21, 1952 [June 28, 1951], No. 1720/54. Divided out of 723,419. Class 110(3). A continuous supply of hot compressed air for a blast furnace or a chemical process is provided by a plant comprising a turbine 11 driving a compressor 1, the output of which is divided between an indirect air heater 7 providing the hot air supply 8, and combustion chambers 6, 10 feeding the gas turbine, the combustion gases from the chamber 6 constituting the heating means for the air heater. The air from the compressor is preheated in a heat-exchanger 2 by the exhaust gases from the turbine. A gaseous fuel supply which may be blast furnace gas is fed by, a compressor 9 to the combustion chambers. In a modification a valved connection is provided between the pipe 5 and the pipe connecting combustion chamber 10 to the turbine. In a further modification the combustion chambers are arranged in parallel.
Patent GB-283932-A (GB)
Title: Apparatus for gauging sets of wheels for railway vehicles
IPC: G01B3/00
Filed: 1928-01-18
Abstract: 283,932. Allgemeine Elektricitõts- Ges. Jan. 20, 1927, [Convention date]. L i n e a r - dimension gauges. - In apparatus for gauging the dimensions of sets of wheels for railway vehicles the calliper like measuring device for determining the centre of the axles, the centre of the journals, the distance apart of the wheel tyres, the diameter of the tread, &c. is pivotally mounted on the bench standards so as to be movable to facilitate the disposal of the wheel sets measured. As shown in Figs. 2 and 3, the bar a carrying the measuring devices a<1> is held by arms b, c, pivotally mounted on the standards d, e, carrying the measuring mandrels. The arms and bar when raised rest against abutments f to hold them in the inoperative position so that the set of wheels can be rolled into position and raised by an hydraulic lifting gear h the axle then being engaged by the mandrels. When the bar a is lowered the arms b, c rest on supporting columns t to ensure the bar a being in the horizontal plane of the axle.
Patent GB-434517-A (GB)
Title: Improvements relating to steam engine plants
IPC: F01B17/04
Filed: 1935-01-18
Abstract: 434,517. Power generating systems; motive - power plant. RICHARDSONS, WESTGARTH, & CO., Ltd., Hartlepool Engine Works, Hartlepool. Jan. 18, 1935, No. 1751. Convention date, Feb. 2, 1934. [Classes 110 (iii) and 122 (iii)] An engine set comprises two high-speed reciprocating engines 1 working in simple and/or multiple expansion formation wherein the cylinders exhaust to an oil separator 10 and then into one or more steam turbines. The power from the reciprocating engines and turbines is applied to a common shaft 4 through gearing 3. The condenser 5 is placed between the reciprocating-engines and is constructed in one with adjoining parts or so connected that the entire aggregate constitutes a block group on a common frame. The parts are cast in one piece or welded or bolted together.
Patent GB-620466-A (GB)
Title: Improvements in and relating to vertical fire-tube steam boilers
IPC: F22B9/04
Filed: 1947-01-20
Abstract: 620,466. Vertical steam boilers. WINEFIELD, Y. Jan. 20, 1947, No. 1788. Convention date, March 25, 1943. [Class 123(ii)]- A vertical steam boiler 3, mounted on a furnace 1 fitted with an oil burner &c., is provided with smoke tubes 7 which extend upwardly from the bottom 8 of the boiler in a vertical or substantially vertical direction and terminate in bends opening into a smoke box 5 which is mounted on the boiler shell below the water level therein.
Patent GB-579807-A (GB)
Title: Improvements in and relating to the propulsion of aerial torpedoes
IPC: F42B17/00
Filed: 1941-02-11
Abstract: 579,807. Aerial self-propelled torpedoes. WILSON, W. G. Feb. 11, 1941, No. 1859. [Classes 9 (i) and 9 (ii)] Relates to aerial torpedoes of the type in which rocket propulsion is obtained by the continuous combustion of heated gases mixed with entrained outside air and by the rearward discharge of the products of combustion. According to the invention, a torpedo of this type having an outer cylindrical casing separated by an annular air-receiving space from an inner shaped body, has the momentum of the discharge gases increased by directly injecting the gaseous fuel into and in the same direction as the moving stream of entrained air. The invention is shown applied to an aerial torpedo having the form shown in Fig. 1 which comprises a shaped body 11 surrounded by a cylindrical casing 10 providing intermediate conduits of reversed venturi form for outside air entering at 47, Fig. 2, and a mixture of hot gases from rocket composition 26 and liquid fuel jets 17 entering at 45. The gases are ignited at the part 15, Fig. 3, of the conduit which is of maximum cross-section, and the products of the continuous combustion are discharged to the rear at 16. The rear of the shaped body 11 houses the gyroscopic flight-control mechanism described in Specification 579,816, [Group XX], and a chamber 74 for rocket composition used in starting from the ground. Elevator wings 58 and a rudder are provided. The rocket composition of the main charge is ignited at 70 and. is in block form shaped to gradually diminish the burning area as combustion proceeds, and the gases pass through whirling nozzles 21 to a mixing chamber 22 where they mix with jets of hydrocarbon fuel from a tank 24. The fuel is ejected from the tank through a pipe 33 by the pressure of gases conveyed through a pipe 39, the pipes being filled with deformable diaphragms 40, 43. The mixed hot gases leave the mixing chamber through an annular jet 45 which by injector action entrains the outside air in passage 13. The hot gases after expansion in the conduit are ignited by a sparking-plug, a hot refractory grid 48, or by jets 49 of fire composition stored in space 50. The conduit then contracts to increase the velocity of the gases ejected at 16. In a modification, jets of water are used in combination with the fuel jets 17 and the containers 18, 24 are spaced longitudinally from one another to secure balance.
Patent GB-642556-A (GB)
Title: Extraction of liquid from materials
IPC: B01D33/00
Filed: 1948-01-21
Abstract: 642,556. Filters. THOMSON, W. R. Jan. 21, 1948, No. 1886. Convention date, March 6, 1947. [Class 46] liquid is separated from material containing liquid and solids by feeding the material to the upper surface of a horizontal endless suction mat, and moving the suction mat first in a horizontal direction over a stationary surface where the material is subjected to a relatively low degree of vacuum and then through an arc of a circle in contact with a synchrously-moving arcuate surface where the material is subjected for a part of its path to a relatively high degree of vacuum, the time for the low-vacuum stage being greater than that for the high-vacuum stage. As shown, an endless suction mat 22 of rubber or the like, with openings on its upper surface communicating with openings in its lower surface, first passes over perforated members 5 on two transverselyspaced series of adjoining suction-boxes 4 connected to a source of vacuum by pipes 7, independently controlled at 7', header 8 and pipe 9, the mat being supported by rollers 25, and together with an overlying filter screen 29 kept in contact with the boxes 4 by deckle straps 32. It then passes over a hollow drum 2 having annular perforated areas in alignment with the horizontal perforated members 5, and by means of these it communicates with arcuate suction-boxes 14 mounted on gudgeons 17 carried by springs 18 and connected to a source of vacuum by pipes 19, 20. The return portion of the filter screen 29 is carried by rollers 30, 31; the drum 2 is driven by a small gear wheel 38. A progressively increasing degree of vacuum from say 6 in. to 16 in. of mercury, from the first to the last pair of boxes 4, may be provided. On the drum 2 the vacuum may range from 20 in. to 26 in. of mercury, but should not exceed 30 in., or fall as low as 16 in.