baber/WOPTO huggingface dataset:
Patent GB-639230-A (GB)
Title: Improvements in and relating to alternating current bridge circuits
IPC: G01R17/00
Filed: 1947-10-08
Abstract: 639,230. Currents and voltage measuring. BRITISH TELECOMMUNICATIONS RESEARCH, Ltd., and HINTON, W. R. Oct. 8, 1947, No. 27083. [Class 37] [Also in Group XL (b)] A bridge is constituted by arms 29, 30 which include resistance, the remaining arms comprising resistance 15 and primary winding 12 of a differential transformer 13, and resistance 14 and primary winding 11, at least two of the resistances having different current-resistance characteristics. As shown, resistance 14 varies with current, so that the bridge is balanced at a predetermined input, which may be A.C. or D.C. To measure the r.m.s. value of an A.C. input from 28, resistance 21 is varied until the bridge is balanced and no output appears in secondary 16 ; a D.C. source 26 is then substituted for A.C. source 28 and resistance 27 varied until the bridge is in balance as shown by a null reading on galvanometer 33 ; the r.m.s. value is then the potential across 19, 20. D.C. and A.C. values may be similarly compared.
Patent GB-666109-A (GB)
Title: Insecticidal compositions
IPC: A01N25/04
Filed: 1949-10-21
Abstract: 666,109. Insecticidal compositions. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. Oct. 21, 1949 [Oct. 25, 1948], No. 27121/49. Class 81 (i). An insecticidal preparation comprises a high concentration (i.e. 25 per cent or above) of a finely divided, normally solid, organic contact insecticide melting or softening at below approximately 200‹ C. dispersed in a medium comprising an organic liquid substantially immiscible with water and substantially a non-solvent for the said insecticide and an emulsifier, in the form of a stable suspension which can be diluted with water to give stable dilute fine aqueous suspensions of said insecticide. The insecticide is ground with the organic liquid preferably admixed with the emulsifier which, however, may also be incorporated during or after the grinding operation. 50 to 75 per cent of insecticide may be present in the preparations and 10 to 15 per cent water may be added to produce pourable products. Specified insecticides are D.D.T., o-hexachlorocyclohexane, 2:2-(p-difluoro diphenyl)-1:1:1 trichloroethane and 2:2-(p-dimethoxy diphenyl)-1:1:1 trichloroethane. Organic liquids are hydrocarbon oils of medium viscosity, e.g. spindle oils and similar light lubricating oils ; liquid higher alcohols and ketones, e.g. such as may be prepared from G 2 -G 3  alkene fractions; higher esters, aromatic or higher aliphatic amines and halogenated hydrocarbons which are non-solvents for the insecticides. The emulsifiers may be anion- or cation-active substances but non-ionic are preferred, e.g. condensation products of ethylene oxide with phenols and with carboxylic acids and the partial esters of polyvalent alcohols of which Triton X-100 (aryl alkyl polyether alcohol) is referred to in the examples. If desired, the non-ionic emulsifiers may be used in conjunction with ionic emulsifiers, e.g. oil soluble mineral oil sulphonates.
Patent GB-851634-A (GB)
Title: Improvements in or relating to infra-red gas analysers
Inventor: SCHULZ GUSTAV
IPC: G01N21/37
Filed: 1958-08-25
Abstract: 851,634. Infra-red gas analysers. SIEMENS & HALSKE A. G. Aug. 25, 1958, No. 27149/58. Class 40(3). In an infra-red gas analyser, the mixture to be analysed is passed through chambers K 1 , K 2  in two radiation paths from a source S and the transmitted radiation is received by chambers Ek 1 , Ek 2  provided with stretched platinum wire temperature probes E 1 , E 2 , the chambers containing respectively the gas to be detected and a neutral gas preferably of the same thermal conductivity.
Patent GB-750775-A (GB)
Title: Means for adjusting rake tines or the like on agricultural implements
IPC: A01D7/08
Filed: 1954-09-22
Abstract: 750,775. Hay rakes. KVERNELANDS FABRIKK AKTIESELSKAP. Sept. 22, 1954 [Jan. 28, 1954], No. 27451/54. Class 6 (3). Relates to hay-rakes, hay-sweeps and similar tined implements wherein the tines T are mounted on a common carrier R by nuts M engaging the threaded tine-ends and having conical portions S which mate with conical recesses in the carrier R. According to the invention, the threaded bores of the nuts are eccentric to the conical parts so that tightening of the nuts causes the tine-axes to execute circular movements which are employed for aligning the tines.
Patent GB-1442704-A (GB)
Title: Molten metal handling vessels
IPC: B22D41/16
Filed: 1974-06-20
Abstract: 1442704 Refractory compositions FOSECO INTERNATIONAL Ltd 20 June 1974 [22 Aug 1973] 27474/74 Heading C1J [Also in Division P4] A composition used for forming a sleeve of a stopper rod (see Division F4) of a molten-metal handling vessel comprises 45-94% by weight of a particulate refractory material, 5-50% of a fibrous refractory material and 1-15% of a binder. The compositions set out in the examples use silica or silica+alumina as the particulate refractory, slag wool or slag wool + asbestos as the fibrous refractory and phenolformaldehyde resin, vinyl acetate resin + phenolformaldehyde resin+fireclay, or phenol-formaldehyde resin + silica sol as the binder; they can also contain 3% paper pulp or 9% crushed paper.
Patent GB-485146-A (GB)
Title: An improved drawing apparatus
IPC: B43L13/00
Filed: 1937-10-11
Abstract: 485,146. Drawing-apparatus. EVANS. W.J. Oct. 11, 1937, No. 27585. [Class 97 (iii)] A paper-carrying turntable 11 is rotatably mounted in a base 10 and a straight edge 15 having guided movement over the turntable has imparted to it a succession of automatically limited traversing movements by a device fitted to the base 10. As shown, the turntable, base, and straight edge are as described in Specification 476,568. The straight edge 15 is adjustably secured at 26 to a rod 23 which slides freely in the housing 24. A member 28 slidable in the housing 24 between a fixed stop and a stop adjustable along a scale 37 by means of a screw may be made frictionally to grip the rod 23 so that by sliding the member 28 between the two stops the rod 23 and straight edge 15 may be traversed through a predetermined distance. A scale 44 may be slidably mounted in guides 45 on the base 10 and may slidably engage a guide 46 on the straight edge 15. The scale 44 may have an abutment 47 which co-operates with the guide 46 to facilitate displacement of the straight edge through a series of predetermined distances.
Patent GB-693884-A (GB)
Title: Improvements in or relating to railway car axle journal bearing mountings
IPC: B61F15/14
Filed: 1951-11-26
Abstract: 693,884. Thrust bearings. TIMKEN ROLLER BEARING CO. Nov. 26, 1951 [March 5, 1951], No. 27659/51. Class 12 (i). An axle box has a journal housing 14 provided on its exterior with recesses 15, 16, located intermediate of the ends of the housing and on opposite vertical sides, the recesses being partly defined by lugs 18 and 19 which provide thrust surfaces against the surfaces of inwardly projecting recesses 28, 29, on the interior of the box, the recesses in the housing interfitting with the projections of the box. A recess 17 is formed on the top of the housing and is defined by flanges 20, 21, this recess accommodating a wedge member 31 having a crowned surface adapted to provide the bearing or load carrying surface between the housing and box. The wedge is provided with lugs 33 having thrust surfaces 35 in the common vertical plane of the surfaces of the projections 19 on the housing which contact the internal projections on the box. Thus the lugs 33 increase the thrust surface and take or transfer thrust loads at least simultaneously with, but preferably before, the areas A designating the thrust surface of the recesses 15 and 16, the thrust loads being transferred through the wedge to the flange 21.
Patent GB-846096-A (GB)
Title: Improved rope tensioning means
Inventor: DAVID EDWARD IVOR
IPC: F16G11/12
Filed: 1956-09-11
Abstract: 846,096. Wire tensioners. RELIANCE ROPE ATTACHMENT CO. Ltd. Sept. 9, 1957 [Sept. 11, 1956], No. 27739/56. Class 45. A rope tensioning device comprises a member 17 bearing at one end against an abutment 1 adapted to engage a fixed support, a thrust block 18 bearing against the other end of the member, a nut 11 bearing against the block, and a threaded tube 6 coacting with the nut and carrying a clamp 10 for the rope R. As shown the member 17 is a compression spring but it may be replaced by hydraulic or compressed air means. The threaded tube has an extension 5 extending within a guide tube 4 which has a grease nipple to permit lubrication of the rope running within the tubes. The nut has radial holes for a tommy bar, and a thrust bearing 19 and a seal 20 are interposed between the nut and block. Telescopic parts 23, 24, respectively fixed to the abutment and the block form a casing, a scale mounted on the part 24 affording an indication of rope tension.
Patent GB-472008-A (GB)
Title: Improved method of forming a joint for the ends of metal strappings for cases, bales and the like
IPC: B65B13/30
Filed: 1936-10-13
Abstract: 472,008. Fastening bale-ties. HALL, T. E., and PACKERS SUPPLY CO., Ltd. Oct. 13, 1936. No. 27816. [Class 146 (ii)] In a method of forming the overlapping ends of metal strapping comprising the use of clamping clips or punched-through tongues, the underneath end 2, Fig. 1, is deformed at a point 5, close to but outside the free upper end 1, so that a portion of the upper surface of the lower end lies at or above the level of the upper end, and prevents accidental catching or lifting of the free end. The deformation may be in the form of a single or double, longitudinal or transverse hump, and may be slit at one end of the hump, or in the form of a curved ridge close to the rounded extremity 1<1>, or a transverse ridge or a punched up tongue. In a machine according to Specification 471,634, a projection 18, Fig. 7, may be provided near to the lower die 7, and which co-operates with the cutting-off extension 17 of the plunger 8, so as to form the hump 5. The deformation may be performed subsequent to the formation of the joint, and by any suitable tool. The edges of the strapping preferably remain undeformed. Specification 428,388, [Croup XVII], also is referred to.
Patent GB-468830-A (GB)
Title: Method and apparatus for preparing swelling starch and the like
IPC: C08B30/16
Filed: 1935-10-09
Abstract: 468,830. Starch. DAUMAS, C. V. Oct. 9, 1935, No. 27853. Convention date, May 9. [Class 121] Cold-swelling starch, and other soluble derivatives of starch, such as " soluble starch " (textile starch) and dextrine, are obtained by moistening starch, shaping it into globular or other granules, allowing the granules to fall, and subjecting them to repeated action from a plurality of steam jets. The opened and unopened products are separated owing to their different densities. The moisture content of the granules before treatment may be 45 per cent, and chemicals are not added when cold-swelling starch is desired, but may be added to assist in the production of " soluble starch." The steam used may have a temperature of 350-450 C. To obtain dextrine, more moisture and higher temperatures are used. Preferably, the starch granules are preheated, and their time of contact with the steam may be about a second. In the apparatus shown, the moist starch is supplied to a distributer chamber 2, and is then pressed through a sieve 4 by brushes or crushing rollers 5. The granules so formed pass through a tube 7 and fall on the successive steam jets 11. The opened products fall into the funnel 13, unopened material passing to the pipe 15.
Patent GB-322039-A (GB)
Title: Improvements in the manufacture and production of finely divided metal powders obtained from carbonyls
IPC: C22B5/20
Filed: 1928-09-28
Abstract: 322,039. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Sept. 28, 1928. Metal powder. - Heavy metal powders are made by comminuting, preferably in an inert or reducing atmosphere, the light and spongy or pulverulent metals obtained by the thermal decomposition of metal carbonyls. Iron carbonyl is decomposed at 320‹ C., and ground in a ball mill, in an atmosphere of nitrogen, the product being an extremely fine powder weighing 4300 grams per litre. The comminuting device may be directly attached to the decomposer and the product may be discharged continuously, as by a worm conveyer.
Patent GB-503844-A (GB)
Title: Improvements in or relating to presses suitable for use in cutting out sheet material
IPC: C14B5/00
Filed: 1937-10-14
Abstract: 503,844. Alloys. BRITISH UNITED SHOE MACHINERY CO., Ltd. Oct. 14, 1937, No. 27923. Convention date, Oct. 17, 1936. Drawings to Specification. [Class 82 (i)] [Also in Group VIII] In a cutting-out press of the type described in Specifications 22,023/05, [Class 31], 220,010 and 242,708, [both in Class 31 (i)], the presser arm is made, at least mainly, from an alloy of high magnesium content, e.g. 87À8-89À8 per cent of magnesium, 9-11 per cent of aluminium at least 0À1 per cent of manganese, up to 0À3 per cent of zinc, and up to 0À5 per cent of silicon.
Patent GB-363712-A (GB)
Title: Improvements in bottle, jar and like closures
IPC: B65D47/26
Filed: 1930-09-19
Abstract: 363,712. Pouring stoppers for bottles. FAULKNER, J. H., 22, St. Winifred's Road, Bournemouth. Sept. 19, 1930, No. 28096. [Class 125 (iii).] ' Relates to capsules for bottles of the bayonet-joint type. According to the invention the capsule is provided with pouring and vent ports 12 and a disc valve 13 for closing and opening them. The disc 13 is rotatably mounted within the cap and has ports 14 which can be brought into and out of register with the ports 12. A sheet-metal operating handle 16 is fixed to the disc 13 by integral tongues 19. The central hole in the cap, through which the tongues pass has an upset edge to space the handle from the capsule. An annular rim 22 in the capsule is provided to prevent liquid from running down the side of the bottle. The pouring hole may be provided with a small spout. A sealing ring 21 is compressed by the capsule against the neck of the bottle &c.
Patent GB-170594-A (GB)
Title: Improvements relating to the determination of carbon in metals
IPC: G01N33/20
Filed: 1921-10-22
Abstract: 170,594. Metropolitan - Vickers Electrical Co., Ltd., (Assignees of Yensen, T. D.). Oct. 23, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Testing and estimating, chemical; gas analysis. -To estimate the percentage of carbon in steel and other metals a sample is first heated in vacuo to separate any occluded carbon monoxide and carbon dioxide, which gases are condensed and their volume subsequently estimated; thereafter the sample is heated in oxygen or in the presence of an oxidizing-agent to oxidize combined or graphitic carbon, the resulting carbon dioxide being condensed and its volume estimated. The estimation is effected by allowing the condensed gases to vaporize in a closed space and then measuring the resulting increase in pressure. In a suitable apparatus the sample which rests upon and is covered by a layer of powdered alun'dum is placed in an alundum boat 21 and introduced into a silica or like combustion tube 1; a furnace 2 heats the sample to a temperature of about 600‹ C., driving off the occluded gases which are condensed in a trap 15 enclosed in a. Dewar's flask 18 containing liquid air; the apparatus is exhausted during the condensation, and when the latter is complete, cocks 14, 19 are closed and the condensed gases allowed to evaporate and the increase in pressure as recorded by the gauge 17 noted. The,sample is now heated by the furnace 3 to about 1000‹ C. or higher, and oxygen from a cylinder 4 after passing through a meter 6 and soda-lime and potash-bulbs 7, 7<1> is admitted to the combustion tube; the carbon in the sample is oxidized to carbon dioxide, and by cutting off the eupply of oxygen and again exhausting the system the carbon dioxide is condensed in the trap 15, and subsequently estimated in the manner previously explained; these operations may be repeated until all the carbon is extracted. A copper-oxide tube 10 electrically heated is interposed to oxidize anv carbon monoxide, and a trap 11 immersed in carbon-dioxide snow stops water vapour. The sample is freed from grease &c. by repeated extraction with ether.
Patent GB-385377-A (GB)
Title: Improvements in continuous feed kinematograph projectors
IPC: G03B41/08
Filed: 1931-10-10
Abstract: 385,377. Kinematograph apparatus. HERRMANN, H., 3, Oststrasse, Oetzsch, near Leipsic, Germany. Oct. 10, 1931, No. 28224. Convention date, Nov. 18, 1930. [Class 97 (i).] Continuous-feed apparatus provided with optical compensating means of the rotating prism type is characterized in that the prism is arranged between two objectives, of which the first produces a real image of the film picture in front of the second, which projects this image on to the screen. As shown, on a casting 2 is mounted a prism 3, on each plane surface of which is a stripe covering 3<1>. In a rear tubular extension 4 of the casting 2 is mounted a slidable objective 6 and the image window 7. A front tubular extension 5 carries a sleeve 8 slidably mounted in which is the objective 9, and a picture vignette 10 and collecting lens 11. A film gate 12 provided with a sprocket 13 is secured by screws 121, 12<11> to a segment 14 pivoted on the axle of prism 3, on which axle is secured a gear 15, connected by intermediate gears 17, 18 to a gear 16 mounted on segment 14. The axle of sprocket 13 has a driving pin 131 engaging in the axle of gear 16. On the side wall 1 are mounted a lamp holder 19 carrying the projecting lamp 20, a condenser 21, and a concave mirror 22. A motor 23 drives through reduction gearing 24 prism 3 and sprocket 13. From the axle of prism 3 the take-up and unwinding spools 25, 26 are driven through couplings 27, 28 by resilient wire cables. By means of the slide 31 provided with wedges 29, 30 either the take-up or unwinding spools 25, 26 can be driven, the slide 31 simultaneously operating a pole changer 33 of the motor 23. The film gate and sprocket may be replaced by another assembly of different dimensions. The stripe covering 3<1> on the prism may comprise bands of indian ink or paper, or fine grooves made black.
Patent GB-1430315-A (GB)
Title: Computer controlled robot system
IPC: B25J9/22
Filed: 1973-06-13
Abstract: 1430315 Automatic control of manipulators KAWASAKI JUKOGYO KK 13 June 1973 [20 June 1972] 28229/73 Heading G3N A robot 1 controlled by a computer 2 in accordance with a stored program has provision for modifying the program by entering the contents of three manually operable registers 9, 10, 11. When a change of program is desired a switch 12 is changed over to disconnect the robot from the program, and the robot is moved to a required position by manual operation of switch register 6 and the information in switch registers 5, 7 and 9 is entered into the program memory by operation of a switch 8 after the address has been entered by operation of switch 13 to transfer the information from switch register 11. Finally switch 12 is changed over again. Steps may be added to or subtracted from the program by use of switch register 10 and a complete program can be generated and stored by carrying out each operation manually and transferring the information to the program memory with the appropriate address.
Patent GB-926244-A (GB)
Title: Improvements in or relating to cathode-ray tubes for displaying coloured images
IPC: H04N9/26
Filed: 1961-08-03
Abstract: 926,244. Colour television tubes. PHILIPS ELECTRICAL INDUSTRIES Ltd. Aug. 3, 1961 [Aug. 6, 1960], No. 28238/61. Class 39 (1). In a multi-colour cathode-ray tube display screen two of the colour phosphors are arranged alternatively in the form of circular dots, at the corners of regular hexagons which adjoin one another in honeycomb relationship, while a third colour phosphor covers the remainder of the area between the dots. The circular dots on the sides of the regular hexagons are contiguous and the inner side of the screen is covered with a light-reflecting metal layer. Specifications 915,845 and 916,832 are referred to.
Patent GB-731850-A (GB)
Title: Improvements relating to textile combing machines
Inventor: FOSTER JOHN RAYMOND
IPC: D01G19/16
Filed: 1952-11-10
Abstract: 731,850. Combing machines. T. M. M. (RESEARCH) Ltd. Oct. 7, 1953 [Nov. 10, 1952], No. 28251/52. Class 120(1). Detaching mechanism for a rectilinear type combing machine comprises two pairs of rollers, all of which rotate about fixed axes and on the back pair 5, 6 of which piecing is effected, the arrangement being such that when the pieced web A is reversed it is induced to curve about the surface of the bottom back detaching roller 6 in a position clear of the leading edge of the oncoming tuft held in the nippers 2, 3. The upper back roller 5 is preferably located slightly in advance of the vertical plane containing the axis of the bottom back roller 6. Specification 727,823 is referred to.
Patent GB-1144869-A (GB)
Title: Variable beam spotlamp
IPC: F21V17/02
Filed: 1967-06-19
Abstract: 1,144,869. Floodlights. MOLE-RICHARDSON CO. 19 June, 1967 [29 Sept., 1966], No. 28267/67. Heading F4R. A lamp, the beam of which can be varied from a narrow spot beam to a wide flood beam, consists of a housing 12 mounted on trunnions on a support yoke, Fig. 1 (not shown), and having a cylindrical portion 20 perforated for ventilation, a forward cylindrical portion 22, a reflector having a flared front portion 36 and a cupped rear portion 40 movably mounted in the housing and having elongated slots 45 through which pass the ends of an electric light bulb 28, and adjusting means for moving the reflector axially of the beam. The lamp is preferably a doubleended quartz lamp mounted in spring-loaded sockets (30) carried by the trunnions. The adjusting means for the reflector consist of a base part 46, leg portions 48, 50 secured to the rim of the reflector and a helically grooved shaft 64 movable in a block 58 at the rear of the housing for moving the reflector back and forth. A leaf spring 70 secured to the rear of the housing has a bifurcated front end which engages leg portion 48 so as to prevent rotation and rattling of the reflector.
Patent GB-981570-A (GB)
Title: Fastening device for boards and panels
Inventor: BERRY HARRY JOHN
IPC: E04B2/58
Filed: 1962-07-23
Abstract: 981,570. Clips; stud and socket fastenings; suspended ceilings. CAPE BUILDING PRODUCTS Ltd. Sept. 19, 1963 [July 23, 1962], No. 28315/62. Headings E1V and E2B. A clip for securing a ceiling board P to an inverted T-sectioned beam S is formed from a strip of sheet metal bent to U-shape to embrace a flange F<SP>1</SP> of the beam with offset edges 8 of its lower limb 2 adapted to interlock with an undercut groove 10 in the board P and its upper limb 1 bowed inwardly. Lugs 5, 5<SP>1</SP>, Figs. 1, 4, integral with limb 1 press down on the upper face of the board P and a central part 16 between slits 12 presses resiliently down on the flange F<SP>1</SP>. In another embodiment, the clip is cut as shown in Fig. 7 and claws are formed in the upper limb by bending out the metal near undercuts 21, the claws preventing the clip disengaging the board before it is ready to engage the flange. The part of the lower limb between slits 24 projects as a loop and acts as a levelling device to keep the ceiling plane consistent.