baber/WOPTO huggingface dataset:
Patent GB-689117-A (GB)
Title: Improvements in or relating to fusion-welding machines
Inventor: PARKER FREDERICK HERBERT
IPC: B23K37/02
Filed: 1950-09-11
Abstract: 689,117. Welding by fusion. BRISTOL AEROPLANE CO., Ltd. Aug. 15, 1951 [Sept. 11, 1950], No. 22361/50. Classes 83 (iii) and 83 (iv). In a fusion welding machine, particularly for welding magnesium, having means to feed a rod or wire towards the welding region, there are provided means to mechanically remove the outer surface of the rod or wire as it is fed. In an embodiment the machine comprises a work-bench 5 above which is mounted a beam 6 on supports 10. Clamps 7 extend from the beam 6 to hold a workpiece on the bench 5. A welding head 9, moved along the beam 6 on rollers 14 by a motor driven chain 13, carries a water-cooled electrode-nozzle supported above the work on rollers 18, a reel 15 for weld wire 24, a motor 25 driving the wireadvancing means and a motor 31 driving a cylinder 32 containing cutter blades which remove the wire surface. The motor 25 drives a pulley 26, through worm gearing 27, which with a spring-urged pulley 28 advances the wire 24 to the cylinder 32, rotated by the motor 31, through a swarf-collecting box 42 and finally a channel 43 to the welding zone below the electrode 20, shielded by inert gas, e.g. argon. The cleaned wire 24 may be passed to the weld zone through a tube supplied with inert gas which may be used in addition to or instead of the means for gas shielding the electrode 20. Rotary tool heads.-Each cutter blade in the head 32 is mounted in a radial slot in the head and each has a pin engaging an eccentric slot in a cap 33 so that rotation of the cap 33 radially adjusts the blades.
Patent GB-721502-A (GB)
Title: Improved aluminium base bearing alloy
IPC: C22C21/00
Filed: 1952-09-05
Abstract: A heat-hardenable, score-resistant, bearing alloy comprises Mg 0.05-3 per cent, Cd 0.05-5 per cent, Si 0.3-11 per cent, Cr 0.1-2.25 per cent, Al remainder, except for incidental impurities.  As an impurity, Fe may be present up to 0.5 per cent. The ingredients may be melted, the alloy cast, heated to 900-950 DEG F. for 12-15 hours, cooled, rolled, heated at 350-400 DEG F. for 5-10 hours and cooled. In alloying, intermediate alloys such as Al-Si and Al-Cr may be used and the more volatile elements viz. Mg and Cd should be added last to the melt.
Patent GB-664125-A (GB)
Title: Process for the production of cholesteryl esters chlorinated in position 7
IPC: C07J75/00
Filed: 1949-08-29
Abstract: 7-Chlorocholesteryl esters are obtained by treating a cholesteryl ester with alkyl hypochlorites under the influence of ultraviolet light.  As suitable hypochlorites there may be used tertiary amyl and tertiary butyl hypochlorites.
Patent GB-383313-A (GB)
Title: Light-sensitive photographic material
IPC: G03C1/825
Filed: 1931-08-07
Abstract: 383,313. Photographic sensitive layers. 1. G. FARBENINDUSTRIE AKT.- GES., Frankfort-on-Main, Germany. Aug. 7, 1931, No. 22391. Convention date, Aug. 8, 1930. [Class 98 (ii).] A colour filter layer is produced by either (a) colouring the surface of the emulsion layer (or of a colloid layer applied thereon) with a water-insoluble dyestuff which is decolourized or rendered soluble in water only by the action of photographic treating liquids or by treatment with an aqueous solution of an alkali, an acid, an oxidizing or a reducing agent ; or (b) using as the filter layer a coloured layer which is insoluble in water but soluble in organic solvents, and can be rendered soluble in water bv a treatment with an aqueous solution of an alkali, an acid, an oxidizing agent or a reducing agent. A specific example of each alternative is given, and reference is made to Specifications 333,933, [Class 98 (ii), Photographic processes &c.], and 369,799. The Specification as open to inspection under Sect. 91 (3) (a) includes also a colour filter layer comprising a collodion solution ( À1 per cent strength in 3 parts of ether and 1 of alcohol) mixed with a 10 per cent alcoholic solution of acridine orange, and applied in a thin layer on a silver bromide gelatin layer. The colour disappears on development. This example does not appear in the Specification as accepted.
Patent GB-1505512-A (GB)
Title: Production of synthetic plastics films and sheets
IPC: B29C48/305
Filed: 1975-05-22
Abstract: 1505512 Controlling extruder feed DYNAMIT NOBEL AG 22 May 1975 [1 June 1974] 22395/75 Heading B5A [Also in Division G3] A method for the extrusion of a synthetic plastics sheet (polyvinylbutyral film for laminated glass) comprises the steps of setting a rated value at 23 for the total supply of material to a screw press 3, measuring at 19 the weight per unit time of comminuted, recycled material being fed at 18 and controlling the supply of fresh raw material 9 in response to the difference, and also keeping constant the filling of the press, measured as the mass pressure at 28 between the press 3 and a melt pump 5. As shown, the pressure measurement modifies the rated value by 10% via controller 30, but alternatively (Fig. 2, not shown) the rated value is set in excess of that required and the actual surplus material is removed at the outlet of the press via a valve controlled by the pressure measuring device. A delay device 25 compensates for the time lag between weigher 19 and press 3. The device 23 sets a desired value for the flow of new material, which is compared with the actual flow signal from belt weigher 11, any difference causing adjustment of the speed of belt drive motor 22. Plasticizer 13 is added in a fixed ratio to the flow of raw material, by controlling a pump 14 in response to the difference between the actual flow measured at 27 and a reference derived in 23. The recycled material is obtained from sheet edge trimmings la, which may be temporarily stored on a drum 8.
Patent GB-1385664-A (GB)
Title: Electrical connectors
IPC: H01R13/40
Filed: 1973-05-10
Abstract: 1385664 Electric coupling ELCO CORP 10 May 1973 [10 May 1972] 22427/73 Heading H2E In a connector holding printed circuit cards and comprising cardedge connectors mounted by means of rectangular section pins forced into holes in a metal plate but insulated by thermoplastic sleeves, metal sleeves are slipped over the emerging pins whenever contact with the metal plate is required, before completing connection by wire wrapping. A sharp tapered cylindrical edge 26 is slipped outside the insulating sleeve, and on applying force by press or hammer blow to shoulder 36 the metal sleeve enters the plate, the fluted periphery engages the hole in the plate, the spring fingers 32 engage the flanks but not the sharp edges of the pin, and finally the internal shoulder 30 engages the projecting insulating sleeve. The metal sleeve may be withdrawn with pliers.
Patent GB-1506289-A (GB)
Title: Alternating current machine
IPC: H02K3/04
Filed: 1975-05-23
Abstract: 1506289 Windings in electrical machines PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 23 May 1975 [27 May 1974] 22663/75 Heading H2A A machine has a stator with a smooth inner surface and coils which lie at least partly in the rotor/stator air gap; the aggregate radial dimension of the coils of each phase remains constant through successive angles of 90/n electrical degrees, where n=2, 3, 4 etc.; and this aggregated dimension changes from an initial maximum value nx to a minimum value x in equal steps and then changes from an initial minimum value x to a maximum value nx in further equal steps. In the arrangement shown, coils 1, 2 of one phase are nested with coils 3, 4 of a second phase to produce a winding of uniform thickness.
Patent GB-143777-A (GB)
Title: Improvements in feeding devices for discs or the like articles
IPC: B21D43/12
Filed: 1919-09-17
Abstract: 143,777. Thompson, W. P., (Continental Can Co.). Sept. 17, 1919. Sheet-separators.-A feeding-device for can ends &c. comprises an inclined rotating helix 12 which engages the end element of a stack f can ends E, separates it from the stack, and feeds it forward in spaced relationship to a subsequent end element. The stack-holder for the can ends comprises a pair of side-bars 2 and a bottom support 3 projecting from a sleeve 4 provided with an adjustable retaining-bar 5 with a lip 8 to engage the lowermost end of the stack. The helix 12 is formed of a twisted rectangular bar and is attached to a shaft 11 mounted in a bearing 10 in a. frame 1. The frame is formed with a segmental guide 9 having bearing surfaces 13, 14 for the helix. Guide-bars 21, 22, which can be adjusted in position for different sizes of can end's, are provided on the frame 1 on each side of the helix. Connected to or integral with the helix is a stripper 16 having a hardened stripping edge 17 adapted to engage the lowermost can end in the stack and transfer i tto a groove 19, whence it is ultimately transferred to the helix. At the lower end of the helix the can ends are guided by an inclined surface 25 and plate 27 to a shoot 26. Any gaps in the spaced sequence of can ends due to failure of the automatic feed can be filled by hand.
Patent GB-1450278-A (GB)
Title: Apparatus for measuring the condensation temperature of a gas or vapour
IPC: G01N25/14
Filed: 1974-05-22
Abstract: 1450278 Measuring condensation temperature electrically SOLVAY & CIE 22 May 1974 [23 May 1973] 22849/74 Heading G1N The temperature of a surface 6 forming one electrode of a capacitor is measured and controlled to bring the capacitance of the capacitor to a value indicating formation on the surface 6 of a condensate from a gas or vapour tlowing through a passage 3 adjacent which the surface is disposed, whereby the temperature measured is the condensation temperature of the gas or vapour. The other electrode of the capacitor is a grid 7 and the space between the electrodes, at least initially, contains no solid material. The body 1 has passages for flow of a cooling agent as indicated at 2. A resistance heating element 4 is provided. The capacitance is measured in a bridge Fig. 2 (not shown).
Patent GB-677064-A (GB)
Title: Process of separating fluid mixtures into fractions of different volatilities by rectification
IPC: F25J3/02
Filed: 1948-08-30
Abstract: An ethyl alcohol water mixture to be separated enters a high pressure column 2 the base of which is steam heated, and a mixture liquefied by a condenser 30 traverses a duct 6, an expansion valve 8, the upper section 14a of an auxiliary rectification column 14, a duct 52, the condenser 30, a section 14b and a duct 24 to a vaporiser-condenser 4, whereupon vapour from the condensers 4, 30 flows into sections 14b, 14a.  The top of section 14a and hence of the column 14 is cooled by liquid from the <PICT:0677064/III/1> base of a section 48a of a low pressure rectification column 48 flowing through a condenser 15. Liquid mixture from a shelf below the condenser 15 is expanded at a valve 47 and enters the section 48a from which alcohol product and water leaves by ducts 69, 45 respectively.
Patent GB-428904-A (GB)
Title: Process for the manufacture of artificial yarns
IPC: D01F2/28
Filed: 1933-11-15
Abstract: <PICT:0428904/IV/1> Artificial filaments prepared by drawing plastic filaments are subjected to a precipitation operation by spraying them with a precipitating liquid.  The plastic filaments are those obtained by drying a filament of solution of a cellulose derivative until it has a dry outer film and a central region which is still in the viscous state.  During spraying, the filaments may be arranged side by side and parallel with one another, as shown in the Figure, in which the sheet of filaments 29 are sprayed, e.g. by means of alcohol, from the nozzle 17 above the winding roller. Excess liquid collects in the vat 19.
Patent GB-961411-A (GB)
Title: Method of copolymerizing
IPC: C08F212/12
Filed: 1961-06-26
Abstract: An alpha-alkyl styrene and methyl methacrylate are copolymerized by heating a mixture thereof in the presence of (a) a free-radical polymerization catalyst having a half life of 10 hours at a temperature between 80 and 110 DEG C., or (b) a mixture of free-radical polymerization catalysts at least at a temperature of 60 DEG C. and then raising the temperature to one not exceeding 160 DEG C., one of the catalysts in the mixture having a half-life of 10 hours in a range of 60 to 105 DEG C. and the remaining catalyst or catalysts having a half life of about 10 hours in a range of 100 to 130 DEG C.  Catalysts (a) specified are cyclohexanone peroxide, tert.-butyl peracetate and perbenzoate, di-tert.-butyl diperphthalate, methyl ethyl ketone peroxide and azo-di(cyclohexane carbonitrile).  Catalyst mixtures (b) specified are (i) tert.-butyl perbenzoate and di-tert.-butyl peroxide, (ii) cyclohexanone peroxide and dicumyl peroxide and (iii) azodiisobutyronitrile, azo-di (cyclohexane carbonitrile) and, optionally, dicumyl peroxide.  The specified alpha-alkyl styrene is alpha-methyl styrene, and the mixture thereof with methyl methacrylate may contain small amounts of other polymerizable compounds, e.g. acrylonitrile, methacrylonitrile, fumaronitrile, styrene and acrylic esters.  The copolymerization is carried out in bulk, and the reaction mixture may contain one or more mercaptans or organic disulphides, e.g. tert.-dodecyl mercaptan and di(mercaptoethyl) sulphide.  The preferred products are copolymers of 15 to 35% of alpha-methyl styrene and 65 to 85% of methyl methacrylate.  Reference has been directed by the Comptroller to Specification 836,837.
Patent GB-727686-A (GB)
Title: Improvements in or relating to battery separator plates
Inventor: JR HARRY A TOULMIN
IPC: H01M50/414
Filed: 1952-09-12
Abstract: A liquid-permeable battery separator plate is made by reacting the polysaccharide dextran (preferably of molecular weight 60,000-400,000) with an alkyd resin and forming the reaction product into a thin acid-resistant porous sheet.  In examples, an aqueous solution of an alkyd resin made by heating (a) 1 mol. of phthalic anhydride and 2 mols. of glycerine, or (b) 1 mol. of phthalic anhydride, 1 mol. of glycerine and 1 mol. of p  triethanolamine is added to aqueous dextran and the whole thoroughly mixed.  Then an aqueous solution of ammonium carbonate is added, the mass extruded through a pair of calendar rollers and the resulting sheet heated to 150-250 DEG  C. to effect liberation of gas from the ammonium carbonate and reaction between the resin and the dextran to form a thermoset porous sheet.
Patent GB-187401-A (GB)
Title: A combination implement for removing bottle stoppers
IPC: B67B7/44
Filed: 1921-08-31
Abstract: 187,401. Howell, A. Aug. 31, 1921. Corkscrews; internally-stoppered bottles, opening; prising-tools for removing capsules.-A combination implement for removing bottle stoppers comprises a corkscrew 6 having a handle 5 with a ring-shaped end 8 and a pivoted arm 9 mounted on the handle and adapted to move at right-angles to the plane of the end 8 to grip a second stopper between the arm 9 and the end 8' of the handle. The aluminium &c. handle 5 comprises two sidemembers 7 between which the arm 9 is pivoted. The inner end of the arm and the interior portion of the ring 8 opposite the arm are ribbed, and side projections 11 on the under side of the arm limit the inward, movement of the arm. The aluminium &c. ball-valve depressor 1 has a neck 4 to screw on to the end of the handle 5, so that the corkscrew 6 passes axially down the depressor. The depressor comprises a flange 2 to fit around the bottle neck and a central projection 3 to engage the ball. To remove a capsule, the implement is turned over as shown in Fig. 4 and the end 8 threaded over the top of the bottle, and the pointed end of the arm 9 is engaged under the edge of the capsule. For use with a stopper having a projecting ridge at the top, the ridge is engaged between the arms 7 of the handle 5.
Patent GB-629043-A (GB)
Title: Improvements in or relating to closures for vessels
IPC: F16J15/46
Filed: 1947-08-20
Abstract: 629,043. Doors for resisting fluid pressure. DANKS & CO. (OLDBURY), Ltd., E., and WHITE, F. G. S. Aug. 20, 1947, No. 23078. [Class 123(i)] [Also in Group XXII] In a method of forming a closure for a pressure vessel a metal bar is bent and machined to form a ring with a radial projection, another bar is formed into a ring with a complementary radial recess and both rings are cut diametrically and the halves of one ring are welded to the halves of the other to form two similar rings. The faces of the rings are machined, and one is formed with a groove 26 to receive a joint ring 50. The completed door comprises an upper half ring 6 welded to a lower half ring 7 and the whole welded to a dished plate 3. A lifting lug 10 is welded on at the top. The door is adapted to be lowered into inter-fitting engagement with a ring welded to the opening of the pressure vessel 1, said ring comprising an upper half ring 17 of section similar to that of the half ring 7 and a lower half ring 16 similar to the half ring 6, except that the parts 16 and 17 contain the sealing groove 26. When the door is in a closed position, the radial projection 30 of the half rings 7 and 17 fit into the radial recess 45 of the half rings 6 and 16 as shown in Fig. 7, pressure fluid being admitted behind the joint ring 50 to form a fluid tight closure. In a modification, the vessel may be doublewalled, both the inner and outer walls being welded to a ring.
Patent GB-1357660-A (GB)
Title: Side draft control system in a tractor and implement combination
IPC: A01B63/11
Filed: 1972-05-17
Abstract: 1357660 Side draft control of agricultural implements DEERE & CO 17 May 1972 [17 May 1971] 23117/72 Headings A1B and A1P A draft control system is similar to that which is disclosed in Specification 1357659 except that the main control valve is a solenoid operated, spring centred, four-way hydraulic control valve 104 which is actuated by two micro switches 124, 126 mounted adjacent the compression link 20 of the tractor's conventional three point linkage. Lateral movement of the compression link 20 about a vertical pivot pin 30 causes an associated member 148 to close one or other of the switches 124, 126 which are both rendered inoperative by a mercury switch 122 when the implement is in the raised 'transport' working position.
Patent GB-881414-A (GB)
Title: Process for the manufacture of active silicic acid from a high percent silicate slag
IPC: C01B33/12
Filed: 1959-07-06
Abstract: In the manufacture of granular active silicic acid having a bleaching effect from silicate slag containing at least 40% SiO2 by topochemical decomposition with acids, the slag, without trituration, is introduced into the stoichiometric amount, or a surplus up to 10%, of an aqueous acid of at most 30% concentration in a period not exceeding 30 mins., while maintaining an upper temperature limit of 60 DEG C., the acid removing basic slag constituents and leaving behind the silicic acid in which the Si and O2 are arranged in a lattice unaltered in size and spatial arrangement from that of the silicate of the slag, and, after standing, the silicic acid is washed and dried at say 200 DEG -300 DEG C.  The slag is preferably that containing more than 90% calcium metasilicate from the electrothermal preparation of elementary phosphorus, and may be foamed, in size up to 3 mm. The acid may be HCl, e.g. about 20%, at 30 DEG -45 DEG C.
Patent GB-312866-A (GB)
Title: Improvements in or relating to liquid cooling devices suitable for use with transformer and other tanks
IPC: H01F27/12
Filed: 1928-08-13
Abstract: 312,866. Pease, E. L., and Premier Radiator & Engineering Co., Ltd. Aug. 13, 1928. Tanks with external radiator elements.-An air cooled radiator for the oil tank of an electrical transformer &c. comprises upper and lower rectangular-shaped headers 1, 2 connected to the tank nnd communicating with each other by tubes 3 disposed in a metal casing 5 having upper and lower openings 6, 7, 8 through which the air is circulated by fans 9, 10 disposed in the openings 7. 8 and mounted upon a shaft driven by an electric motor 12. Baffles 14, 14<a> are provided to distribute the air evenly over the tubes. In a modification, the headers are of annular form and the tubes are arranged around a central casing 16, Fig. 3, the air being drawn upwardly by a fan 12 through the space between the central casing and the headers. In another arrangement, the oil is circulated by a propeller 19, Fig. 5, mounted upon the fan-shaft. Any number of radiators may be arranged around the walls of the tank. Specification 252,791 is referred to.
Patent GB-714394-A (GB)
Title: Manually-guided motor-cultivator
IPC: B62D51/06
Filed: 1952-09-17
Abstract: 714,394. Agricultural implements. MERRY, C. B., and ALLBERY, V. Sept. 17, 1952, No. 23317/52. Class 6 (1) A motor-driven, hand-guided, cultivator comprises a frame 13 having rearwardly-extending handles 52 and mounting a motor 15 which drives, through two-stage reduction-gearing in a flat drive-housing 23, a pair of combined supporting and tilling-wheels 73 arranged to rotate on a common transverse axis, the ratio of tractive to tilling effort exerted by the wheels being regulable by a fixed soil-engaging tooth 96 mounted at the rear of the frame and insertable into the ground by depression of the handlebars. The motor drives a large pulley 20 through a belt 19 which can be tensioned by a jockey 56 on an arm 57 pivoted to the frame, this arrangement forming a clutch operable from the handlebars through a cable 63 passing through the tubular bar 51 : the other handlebar carries a throttle-control cab'e. The drive to the landwheels is continued through a double chain-drive to the shaft 44 on which the wheels 73 are secured by pins 78, passing through tubular sleeves 74, Fig. 4. Additional wheels 86 may be mounted on the sleeves 74 through bayonetsockets on sleeves 87. Each wheel comprises V- shaped tines 80, 81, welded to a flange 76 or 86, which is integral with the respective sleeve 74, 87. The tooth 96 comprises a plate 97 on the end of a vertical stem held adjustably in a bracket 17 at the rear of the frame 13.
Patent GB-737531-A (GB)
Title: Improvements in or relating to finishing mills for thin sheet metal
IPC: B21B13/14
Filed: 1953-08-25
Abstract: 737,531. Cold-rolling. UNGERER, F. Aug. 25, 1953 [Nov. 25, 1952], No. 23367/53. Class 83 (4). In a finishing mill for thin sheet-metal 10 at least one finishing roll 9 (Fig. 2) of a pair is bendable and yieldingly supported by rows of support members 31. The yieldable support for a mill having two pairs of finishing rolls, 9, 11, Fig. 3, comprises three rows of rollers 21, 22, 31 supported by hydraulic pistons 24, 25, 32 and arranged in staggered relationship so that the rollers 21, 22 engage in the gaps between the rollers 31. The pistons in each row plunge into common cylinders 26, 27, 33 so that pressure changes are evenly distributed across each yielding roll 9, the pressure being controlled by pumps 28. The upper rolls 11 are backed by similarly-arranged rolls 19, 20, 30 on a rigid mounting 23 but may be yieldingly mounted as for the bottom rolls. The drive is obtained through cardan shafts 16, 17.
Patent GB-1432101-A (GB)
Title: Ag-cdo-type electrical contact material
IPC: H01B1/02
Filed: 1974-05-24
Abstract: 1432101 Silver-cadmium oxide P R MALLORY & CO Inc 24 May 1974 [24 May 1973] 23431/74 Heading C7A An oxidized Ag-CdO type material for electrical contacts contains the oxidized particles of the additional element(s) acting as nucleating sites for the Sn and Cd oxides. The contact material may be formed from atomized, oxidized powder or from internally oxidized cast shapes, oxidation being carried out at about 850 C in an oxygen-rich atmosphere. The additional element(s) increase the hardness, raise the hard-to-soft transition temperature, and improve the arc erosion characteristics of the material. Reference has been directed by the Comptroller to Specification 1336461.