baber/WOPTO huggingface dataset:
Patent GB-812257-A (GB)
Title: Improvements in or relating to electric primers for cartridges
IPC: F42B3/14
Filed: 1957-10-30
Abstract: 812,257. Ammunition primers. DYNAMIT ACTIENGESBLLSCHAFT VORM A. NOBEL & CO. Oct. 30, 1957 [April 20, 1957], No. 33818/57. Addition to 805,118. Class 9(1) The electric primer described in the parent Specification is modified by placing plastic metal foil 5 between the canductive part 7 of the priming charge 8 and the electrode 3. The foil 5 may be placed between the two parts of the charge or metal foil 5 may be placed on both sides of the conductive charge. Alternatively the foils 5 may be placed over and under the whole of the priming charge and are then of synthetic plastic impregnated with conductive varnishes containing graphite or metal powder.
Patent GB-827936-A (GB)
Title: Improvements in or relating to elevated platforms, e.g. for elevated roadways
IPC: E01D2/00
Filed: 1957-10-31
Abstract: 827,936. Elevated roadways: bridges. LUBBERT, E.. SCHULZ, E.. FINSTERWALDER, U., JECHT, R. and RUF, E. Oct. 31, 1957 [Oct. 31, 1956; Dec. 24. 1956], No. 33953/57. Classes 20(1) and 107 An elevated roadway is made up of square concrete sections each mounted on a central pillar from which diagonal riblike girders project, the thickness of the section and supporting girders increasing from the edges to the centre of the section. As shown, the square concrete slab 1 containing axial and transverse tensioned reinforcements, has strengthening portions 2 and ribs 4 both of which increase in thickness from the edge of the section towards the central supporting pillar 3<SP>1</SP> which may be solid or hollow as shown. In a modification, two independent rectangular sections are arranged side by side to accommodate streams of traffic in opposite directions, and each section, supported on a central pillar, increases in thickness from its edges to the centre; two supporting ribs extend from the central pillar parallel to the sides of the section.
Patent GB-1492075-A (GB)
Title: Production of phthalocyanine green
IPC: C09B47/10
Filed: 1975-08-16
Abstract: 1492075 Preparing phthalocyanine green pigments CIBA-GEIGY AG 28 July 1976 [16 Aug 1975] 34196/75 Heading C4P Polyhalogenated copper phthalocyanines having at least 8 halogen atoms are prepared by heating a mixture of dry copper phthalocyanine, an organic solvent, a halogenating agent, a halogen transfer agent and, as catalyst, chlorosulphonic acid. The organic solvents, used in amounts so that the volume ratio solvent : chlorosulphonic acid is 30 : 1, include 1,2,4-trichlorobenzene and nitrobenzene. The halogenating agents include chlorine, bromine, phosgene, thionyl chloride and sulphuryl chloride, 7-32 moles thereof being used per mole copper phthalocyanine. The halogen transfer agents are anhydrous iron chloride, cuprous chloride, antimony sulphide, anhydrous zinc chloride, metallic iron or copper and especially iodine. 0À05-0À5 mole halogen transfer agent is used per mole copper phthalocyanine. 0À5 to 3À0 moles chlorosulphonic acid is used per mole copper phthalocyanine.
Patent GB-487053-A (GB)
Title: Improvements in or relating to aqueous dispersions of bituminous materials and methods of making such dispersions
IPC: C08L95/00
Filed: 1936-12-14
Abstract: Aqueous dispersions of bituminous materials, e.g. crude petroleum oils, fuel oils or fractions, distillates or residues obtained from such oils, having high viscosities are obtained by mixing the bituminous material, prior to dispersion, with water carried in a water-in-oil emulsion without the addition prior to this mixing operation of water-soluble substances either in the water-in-oil emulsion or separately.  The oil used for the water-in-oil emulsion must be capable of dissolving the bituminous material and is preferably less viscous.  It should also be neutral so that it will not react with emulsifying agents used to obtain the aqueous dispersion.  Paraffin is a suitable oil, and water is dispersed therein by a water-insoluble agent such as aluminium stearate or oleate.  Preferably after the bituminous material has been admixed with the water-in-oil emulsion, part or substantially the whole of the water is removed by evaporation prior to dispersion in water. This treatment is stated to redistribute the water-soluble bodies contained naturally in the bituminous materials in substantially smaller particles, so that on dispersion in water they increase the water-absorption of the bituminous material and hence its viscosity. Increase in viscosity is also obtained by better mixing of the bituminous material with the water-in-oil dispersion.  According to examples, (1) 99 pts. of bitumen of 230 penetration at 25 DEG  C. were mixed for 30 minutes with 1 pt. of a water-in-oil emulsion consisting of 2 pts. distilled water, 2 pts. paraffin oil and 1 pt. aluminium stearate.  This mixture at 105 DEG  C. was dispersed in water at 97 DEG  C. containing 1 per cent oleine and a slight excess of caustic soda in a homogenizer driven at 8,000 r.p.m. with a gap of 0,01 inch.  The dispersion contained 55-60 per cent of bituminous material.  (2) A similar dispersion was obtained from 97,6 pts. of bitumen and 2,4 pts. of a water-in-oil emulsion consisting of 6 pts. distilled water, 5 pts. paraffin oil and 1 pt. aluminium stearate. (3) The mixture of bituminous material and emulsion obtained in example 1 was treated to evaporate off the water prior to the final dispersion.  This treatment produced a marked increase in viscosity. Specification 389,810 is referred to.
Patent GB-283203-A (GB)
IPC: G09F19/18
Filed: 1927-12-19
Abstract: 283,203. Zeiss, C. [Firm of]. Jan. 7, 1927, [Convention date]. Optical-projection apparatus. - Apparatus for projecting images on to the clouds &c. comprises a source of light b, a mirror d imaging the source of light in the neighbourhood of an objective i, guides f forming a slide carrier, the optical axis of these parts of the apparatus being approximately horizontal, and a movable reflector o which is carried by a spindle n and may be set so that its plane and the axis of the spindle make an angle slightly dtviating from 90‹. The reflector o may be mounted on a pivot p carried by the spindle n, the spindle being rotatable in a carrier i which is itself rotatable round the lens sleeve k. Rotation of the spindle n may be effected by an electric motor s and worm gear q, r to produce a circular movement of the image. The position of the reflector may be varied, and it may be placed behind or in front of the objective or between the components of the objective.
Patent GB-1354192-A (GB)
Title: Preparation of citric acid
IPC: C12R1/72
Filed: 1972-07-21
Abstract: 1354192 Citric acid MITSUI SUGAR CO Ltd and H IIZUKA 21 July 1972 [23 July 1971] 34299/72 Heading C2C Citric acid is prepared by aerobic fermentation of a culture medium containing hydrocarbons with a strain of Candida oleophila. n-paraffins (9-35 C) are preferred and are used in 5-20À1 by volume of the culture medium. Nitrogen sources, phosphate, magnesium or manganese salts, thiamine and nicotinic acid and a neutralizing agent may be used in an aerobic submerged culture method. Examples describe the use of Candida oleophila ATCC 20177 to ferment n-paraffins (11-15 C).
Patent GB-296238-A (GB)
Title: Improvements in or relating to means for forming combustible mixtures for use in internal combustion engines
IPC: F02M17/22
Filed: 1927-12-19
Abstract: 296,238. Pogue, C. N., and Andrews, A. J. Dec. 19, 1927. Surface and spray carburettors.-Hot air from a jacket 13, Fig. 2, surrounding the exhaust pipe 14 is admitted to the upper part of the main fuel tank D, Figs. 2 and 3, the fuel in which is agitated both by a stirrer 15 and by air forced through a check valve 29 in the bottom of the tank by an engine driven-compressor 26, the mixture produced being conveyed from the upper part of the tank through a conduit 10 to the intake of an ordinary spray carburettor C. The stirrer 15 is adapted to float on the fuel in the tank, and is mounted on a square or hexagonal shaft 17 driven by bevel gears 19, 20 and a shaft 21 which is connected by a flexible member 22 to a shaft mounted in the exhaust pipe and provided with propeller blades. To prevent damage from backfiring, the intake of the carburettor C is provided with a check valve and with an outwardly opening relief valve.
Patent GB-1191798-A (GB)
Title: Improved Fluid Control Device
IPC: F15B13/04
Filed: 1968-07-18
Abstract: 1,191,798. Valves. ROSS OPERATING VALVE CO. 18 July, 1968 [20 Oct., 1967], No. 34395/68. Heading F2V. A control valve 11, which is interposed between a three-way solenoid operated pilot valve 13 and a motor 14, comprises a main bore 25 whose diameter varies along its length and which is closed at its ends by caps 28, 29, a spool 31 which carries differently sized sealing rings 45, 46, 58, 59,49, 50, has formed therein two bores 62, 63, and encloses a shuttle 37 which is movable between the inner ends of the bores, a fluid pressure supply port 43 or 43a, an exhaust port 47, and motor parts 54 and 55, the shuttle being subjected to the bias of springs 38 and 39. In the state of the valve shown, motor 14 is connected to exhaust 47 via port 55 and chamber 48. Upon application of a signal to line 17, the shuttle will be forced against its seat 41, chamber 33 pressurized and spool 31 moved to its uppermost position, the shuttle remaining in contact with its seat, whereby the motor is connected to supply 43 via chamber 44 and port 54, (Fig. 2, not shown). Upon depressurization of signal line 17, spring 38 will move the shuttle into engagement with a second seat 42, (Fig. 3, not shown). Re-application of pressure to line 17 will then cause the shuttle to firmly engage its seat 42, chamber 32 to be pressurized and consequently the spool to return to its lowermost position, (Fig. 4, not shown), the shuttle remaining in engagement with its seat 42, whereby the motor is again connected to exhaust. In order to return the valve to its original state as depicted in Fig. 1 and so to allow the cycle of operation to be repeated, line 17 is again depressurized and, consequently, shuttle 37 moved by spring 39 into engagement with its seat 41. In the above operation, the arrangement of sealing rings in conjunction with the shape of the bore 25, facilitates the motor to be alternately pressurized and exhausted upon the application of successive pulsations to line 17, and moreover, serves to retain the spool in either of its two extreme positions.
Patent GB-631118-A (GB)
Title: Improvements relating to photogravure printing
IPC: G03F5/20
Filed: 1946-11-20
Abstract: 631,118. Photogravure printing-surfaces. REES, V. H., and FIELD, M. J. Nov. 20, 1946, No. 34425. Drawings to Specification. [Class 98 (ii)] In a photogravure printing process a positive is formed by printing from a negative on to a light-sensitive photographic layer through a pair of screens each bearing crossed opaque lines the front screen being spaced from the light-sensitive layer to give a half-tone effect and the rear screen being sufficiently close to the light-sensitive layer to give effectively unexposed lines even in the most exposed parts of the image. Preferably the illumination is defined by a stop and the spacings of the lines on the screens are proportional to the distances of the screens from the stop so that the centres of the half-tone dots produced by the front screen on the light-sensitive layer coincide with the centres of the transparent squares of the rear screen, which may be in contact with the light-sensitive layer. A negative is printed from the positive on a sensitized gelatine layer such as a carbon pigment paper, applied to a printing plate or cylinder and the latter etched in a single bath, typically of iron perchloride. The front and rear screens may be carried on opposite faces of a single transparent support, e.g. an optical flat.
Patent GB-463184-A (GB)
Title: Improvements in recovery of sulphur
IPC: C01B17/06
Filed: 1935-09-28
Abstract: <PICT:0463184/III/1> Sulphur is obtained by oxidizing iron sulphide in the form of a fine suspension to form a gaseous product containing sulphur dioxide which is then passed into contact with a bed of pyrites to distil off the volatile sulphur, the iron sulphide remaining preferably being oxidized as a suspension as above. According to the arrangement shown, pyrites in the form of a solid bed on grate 32 in chamber 12 is treated with the hot gases from the roasting operation which are introduced through tuyeres 37, preferably at a temperature between 500--900 DEG  C.  The gaseous product is then passed through a dust collector 13, a water-cooled condenser 14, and finally through an electrical precipitator 8.  The heat of reaction shatters the pyrites particles, and the resulting iron monosulphide is fed via conveyer 24 to a grinding mill 11, the fine particles being introduced as a suspension into chamber 10 wherein they are oxidized by means of air introduced through tuyeres 22.  The roasting is preferably controlled to obtain a gaseous product, substantially oxygen-free, having a temperature in excess of 1000--1200 DEG  C., which is passed via conduit 23 to the chamber 12. The insulation on conduit 23 is arranged to effect the requisite fall in temperature.  The gases leaving precipitator 8 may be treated in any suitable way for the recovery of sulphur dioxide or the production of further quantities of sulphur therefrom.  The iron oxide is removed from chamber 10 by conveyer 16.
Patent GB-1005001-A (GB)
Title: Electric soldering iron
IPC: B23K3/03
Filed: 1961-09-26
Abstract: 1,005,001. Soldering. ELDON INDUSTRIES Inc. Sept. 26, 1961 [Sept. 20, 1960], No. 34480/61. Heading B3R. An electric soldering iron comprises a central tube 12 containing an electric heating element, a tapered metal sleeve 31 encircling the tube and having a flared end 32, a non-metal body 43 encircling the metal sleeve and having a bore slidably receiving the metal sleeve and retainer means 50 mounted upon the sleeve to prevent axial separation of the sleeve and body and to restrain axial separation of the tube. The metal tube 12 has an enlargement 13 housing the resistance element and leads therefrom extend through the tube to terminate in plugs 25 and an externally threaded post on the end of the tube supports a bit 18. The tube is slidable in the bore 30 of the tapered sleeve 31, the thickness of which is tapered, a space 36 centres the tube in the flared end 32 and a key 40 on the tube engages a slot 41 in the sleeve. The body 43 forming the handle has a cylindrical bore 44 engaging a cylindrical surface 45 on the sleeve and the front end 46 of the body is flared and has lugs 47 engaging the flare 32. A key 48 on the body engages the slot 41 in the sleeve. The tube 12 is slid into the sleeve from left to right and the body 43 is slid over the sleeve from right to left, the assembly being held by a retainer 50 comprising a U-shaped leaf spring. A member 51 having sockets 67 to receive the plugs 25 and supporting the supply wires 69 is clipped on the end of the sleeve 31.
Patent GB-1294260-A (GB)
Title: End closure arrangement for variable resistor
IPC: H01C10/24
Filed: 1971-07-22
Abstract: 1294260 Variable resistors SPECTROL ELECTRONICS CORP 22 July 1971 [13 Nov 1970] 34481/71 Heading HIS A variable resistor 10 comprises a housing 11 having a helical groove 15 formed on its interior surface and in a part of which is carried a helical, wire wound resistance element 16. A rotor 12 supported in a bushing 12 of the housing 11 and a recess 59 in a closure member 13, has an axial slot in which a member 32 which carries a wiper 33 is slidably located. Wiper 33 is shaped so that it follows the path of the resistance element upon rotation of the rotor, and is connected to a slip ring 35 by a flexible wire 34. Terminals 18, 19 are connected to the ends of the resistance element and terminal 41 is connected to the wiper 33 via a pin 42, a brush 43 provided on the pin, slip ring 35 and wire 34. The closure member 13 is provided with a helical thread 50 which engages the unused portion 20 of the helical groove 15 of the housing, and is accurately rotationally located with respect to the housing by pin 42 which passes through radially aligned apertures 51, 45 in the housing 11 and the closure member respectively. A stop member is also provided on the closure member to prevent further rotation of the rotor upon the wiper engaging the free end of the resistance element, thereby preventing the wiper from being disengaged from the resistance element.  A number of ganged resistors can be assembled wherein the closure member of one resistor forms the housing member of a succeeding resistor.
Patent GB-521907-A (GB)
Title: Improvements in and relating to dry sealing envelopes and similar receptacles
IPC: B65D27/16
Filed: 1938-11-28
Abstract: 521,907. Envelopes. PIRIE, APPLETON & CO., Ltd., and HAAS, A. Nov 28, 1938 No. 34552. [Class 146 (ii)] A dry-seal envelope with stripes c, d of adhesive on the back wall a and closing flap b respectively has a protective flap f adhesively secured to the closing flap b. The flap f is folded towards the crease line e or detached when it is desired to seal the envelope and may be creased or perforated at h to facilitate the folding or detachment. The free ege of flap f projects slightly beyond the free edge of flap b:
Patent GB-163001-A (GB)
Title: Improvements in holders for sharpening safety razor blades
IPC: B24D15/10
Filed: 1920-12-08
Abstract: 163,001. Tompson, J. W. May 6, 1920, [Convention date]. Razors.-A holder for sharpening razor blades comprises two similar portions 6, 7 between the ends 10 of which a pair of double-edged blades 8 can be secured, the inner edges of the blades being aligned by placing them in contact with an elongated stud 9 of leather, rubber, &c. held in an undercut recess in the part 6. The part 7 is recessed at 11 to accommodate the projecting portion of the stud, and the parts are held together by a dowel 22 on the part 6 engaging a recess 23 in the part 7 and by a screw 24 engaging both parts. The inner faces of both parts are recessed in both sides of the stud 9 to accommodate backed blades which are aligned by the backs engaging the edges 20 of the recesses.
Patent GB-1009234-A (GB)
Title: Automatic washing machine
IPC: D06F39/00
Filed: 1962-09-11
Abstract: 1,009,234. Washing machines. N. LOPE Z CLIMENT. Sept. 11, 1962 [Sept. 14,1961], No. 34640/62. Heading D1A. [Also in Division A4] A machine for washing dishes or clothes comprises a fixed cylindrical receptacle 5 having a base inclined towards an outlet provided with a filter 7, and within which is rotatably mounted a receptacle 14 having holes in its base, and a pump 8 for circulating washing water from the receptacle 5 to the receptacle 14, and directing a jet of water against, external blades 34 on the receptacle 4 to rotate the latter for spin drying the washed articles. The machine is controlled by a rotary distributing cock having a first inlet connected to the pump 8 through a heater 11, and a second inlet supplied direct from a water supply line. The cock has five different positions and is movable by a spring controlled by a push button. It is set initially to connect the water supply to the nozzle 30 to fill the receptacle 5 to a desired level, then moved to connect the pump 8 to the nozzle 30 for the washing operation, following which it is set to connect the pump 8 to produce the jet for rotating the receptacle 14 for spin-drying the clothes or dishes. The cock is next set to connect the pump 8 to drain, and when draining is completed it is turned to a position in which none of its inlets and outlets are in communication, and the washed and dried articles are removed from the machine.
Patent GB-1472537-A (GB)
Title: Deoxidant material and process
IPC: C21C7/06
Filed: 1974-07-19
Abstract: 1472537 Deoxidizing steel BRITISH STEEL CORP 19 July 1974 [20 July 1973] 34678/73 Heading C7D Molten steel is deoxidized by the addition of a mixture of Al 2 O 3  and metallic Al containing up to 90 by wt. per cent of Al 2 O 3 , preferably 10-80%. The additive may be enclosed in a sealed container which melts at a temperature below that of the molten steel. As exemplified the additive was used either before or after ferrosilicon and ferromanganese and the steel was stirred with argon during the deoxidation.
Patent GB-467207-A (GB)
Title: Improvements in or relating to fastening devices for motor car bonnets and the like
IPC: B62D25/12
Filed: 1935-12-13
Abstract: 467,207. Hook fastenings. MUNRO, R. M., BINKS, C. L., and AMAL, Ltd. Dec. 13, 1935, No. 34706. [Class 44] A fastening for a motorcar bonnet or the like consists of a hook 2 at the end of a spring-operated slide 5, the spring 15 being stressed by the rotation of a crank-arm 11 having a cam 19 which engages a projection on the slide 5 to move it to the disengaged position. The slide 5 works in guides 6 on a backing plate 7, and the spring 15 is connected between the projection 17 on the slide and the pin 18 on the crank-arm. When the parts 1, 4 are brought together the handle 10 is rotated until the crank reaches the stop 13 and the spring lifts the slide 5 causing the hook 2 to enter the eye 3. To release the fastening the handle is turned in the reverse direction and the cam 19 depresses the slide to disengage the hook 2 ; the disengaging action is assisted by the spring after the dead-centre position has been passed. In a modification the operating handle is disposed centrally with regard to the slide, and the rotating spindle passes through a slot in the slide, the up-and-down movement of the slide being limited by the extent of the slot. Specification 406,318 is referred to.
Patent GB-308635-A (GB)
Title: Improvements in and relating to chains or link belts and to stencil duplicating machines
IPC: B41L13/10
Filed: 1927-12-22
Abstract: 308,635. Clatworthy, J. Dec. 22, 1927. Stencilling.-In a chain or link belt of the kind comprising sheet metal links provided with tongue-and-slot connections, the tongues are bifurcated adjacent to their extremities. The chain may be used in a duplicating-machine, the ends of the stencil carrier being arranged to constitute links in the chain. As shown in Figs. 1 and 2, each link 1 has a slot 2 at one end and a tongue 3 at the other end, the tongue being passed through a slot in an adjacent link and bent over. Bifurcations are formed on the tongue at the end part, and a hole 5 is provided in each link to engage projections on the rotary members with which the chain cooperates. In a modification, some of the links have tongues at each end, and the intervening links have slots at each end, the former having recesses formed by pressing up the metal and the latter having holes to engage the projections on the rotary members; preferably, however, all the links have either holes or recesses. The chain is adapted for use m a stencil duplicator of the type in which the stencil passes over a pair of inking-cylinders 8, Fig. 6, and is mounted on a carrier consisting of a silk sheet attached by metal bars to endless chains connecting the cylinders, the holes 5 or recesses in the links engaging projections 6 on the cylinders. The metal bars at one end of the stencil may engage at each end over a stud on a chain link, or a loop pressed up from a link may pass through a hole in the bar to receive a fixing-pin ; alternatively, each end of a bar may have a tongue and slot so as to form a link in a chain.