baber/WOPTO huggingface dataset:
Patent GB-693092-A (GB)
Title: Steel measuring tape
IPC: G01B3/10
Filed: 1951-11-26
Abstract: 693,092. Measuring-tapes. LJUNGBERG, T. A. Nov. 26, 1951, No. 27676/51. Class 106 (ii). A flexible steel measuring tape 11 of concaveconvex cross-section is coilably received within a casing 1 with a channel-shaped guide near its opening 12 for the tape which slides therein with negligible friction when in its natural concaveconvex shape but when flattened by manually controllable means has its edges urged against the sides of the guide to lock it against sliding. The casing 1 comprises a box and cover with a central stud 8, Fig. 1, having a slot 9 in which is secured one end of a resiliently-coiled winding strip 10 whose other end is fastened to the tape 11 which is extendable through the opening 12. A short flexible steel strip 15 of concave-convex cross-section is attached to the flat upper side. wall 4 of the casing 1 by a screw 13 and rivet 14, Fig. 3, and when not in use is adapted to lie close against the curved side wall 5 of the casing with its free end engaging a pocket 16. Pointed hooks 17, 18 are fastened to the strip 15 and tape 11 and another hook 19 to the casing in line with the others 17, 18. The tape is graduated in inches and centimetres, on one side being calibrated to indicate distances between hooks 17, 18 and on the other distances between hooks 18, 19. Due to the flexibility of the tape 11 and strip 15 the device may readily be inserted in hollow articles for measuring internal dimensions. The looking device comprises a plate 22 with two parallel edges 23 turned upwards and inwards to form a channel-shaped guide for the tape 11 near the opening 12, Figs. 1, 5. The inner end of the plate 22 is fixed to a transverse rotatable shaft 24 and its outer end is fixed to a rod 25 extending downward and urged clockwise by a helical spring 26 which thus causes the plate 22 to press the tape 11 upwards against the rivet 14 and in flattening the tape causes its edges to grip the side of the guide channel. This braking effect is relieved by manually pressing a button 28 to bear on the rod 25. In an alternative locking device the guide 22, 23 is fixed to the casing and a movable member is provided for flattening the tape.
Patent GB-863161-A (GB)
Title: Electronic adders including transistors
IPC: G06F7/501
Filed: 1957-09-03
Abstract: 863,161. Transistor pulse amplifying circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. Sept. 3, 1957 [Sept. 4, 1956], No. 27751/57. Class 40(6) [Also in Group XIX] A two transistor inverter-driver stage for use in a full adder (see Group XIX) comprises two transistors 64, 65, Fig. 1 (part only) in which transistor 65 is normally conducting, the centre point of a potential divider 66, 69 being grounded. The application of a negative pulse to the centre point of the potential divider causes the conductive state of the two transistors to be interchanged and produces a positive pulse at a terminal S.
Patent GB-1141699-A (GB)
Title: Conveyor chain holding device
IPC: F16G15/00
Filed: 1967-06-16
Abstract: 1,141,699. Tensioning conveyer chains. GEWERKSCHAFT EISENHUTTE WESTFALIA. 16 June, 1967 [11 Aug., 1966], No. 27815/67. Heading F2G. A holding device for use when joining up conveying chains by anchoring one end of the chain near a drive sprocket, passing the other end of the chain over the drive sprocket, holding the chain in the vicinity of the sprocket and then joining the chain, comprises a cross-member 10 adapted to be mounted on the sprocket drive frame 12 and one or more pawls pivoted on the cross-member and adapted to engage the chain where the chain passes over the sprocket-wheel. As shown, pins 14 pass through coupling eyes 11, 13 on the member 10 and frame 12 respectively which pins also secure pairs of blocking pawls 15, 16 carrying downwardly directed dogs 17, 18 for engaging in links of the chain or between the teeth of the sprocket-wheel, the dogs being offset by a distance equal to one half the chain pitch, whereby the chain need be stretched only by that distance. In a modification, for a single chain conveyer, a dog is mounted in the middle of the cross-member.
Patent GB-1354051-A (GB)
Title: Control rod drive system
IPC: G21C7/14
Filed: 1972-06-14
Abstract: 1354051 Controlling reactors GULF OIL CORP 14 June 1972 [15 June 1971] 27876/72 Heading G6C [Also in Division F2] A control rod drive system for a nuclear reactor includes a flywheel which is used to absorb kinetic energy of the control rod and associated elements near the end of a screen stroke. As shown, the flywheel 17 is a cylindrical member which surrounds a support rod 16 connected at its lower end to the control rod (not shown) and is mounted in bearings 79. The flywheel 17 is provided with a pair of cam followers 18 which project radially inward to engage with and ride in a pair of oppositely disposed cam tracks 19 machined in an enlarged diameter section 77 of the support rod 16. During normal reactor operation, the cam followers 18 move in parallel straight portions of the cam tracks 19. In the event of an emergency shut-down, however, the support rod 16 is released from its drive motor and descends under the action of gravity with the cam followers 18 entering curved portions of the cam tracks 19, resulting in a torque being applied to the flywheel 17. Once the cam followers 18 exit from the tops of the cam tracks 19, the clearance between the support rod 16 and the cam followers 18 allows the latter to move free of the rod 16 while this descends the remaining distance. In order to absorb the energy remaining, a suitable shock absorber sleeve (91) (Fig. 1, not shown) is provided to engage the lower edge of the coupler (23) connecting the control rod (12) to the support rod 16. The upper end of the rod 16 has an annular collar 25 from which three guide wheels 27 project to ride in axial slots 29 in the wall of a removable housing 31 and thus prevent rotation of the rod 16. The upper end face 39 of the rod 16 forms one of a pair of separable elements of an electromagnetic latch which, when engaged, rigidly couples the control rod through the rod 16 to a supporting and adjusting means (11) (Fig. 1, not shown). Upon release of the latch, a pair of coil springs mounted within the electromagnetic coil unit provide a downward bias force on the end face 39 to assist gravity in providing initial acceleration of the control rod towards the reactor core.
Patent GB-135830-A (GB)
Title: Improvements in Pocket Cameras.
Inventor: WOLF BERNHARD
IPC: G03B17/04
Filed: 1919-11-11
Abstract: 135,830. Wolf, B. Nov. 25, 1918, [Conven. tion date]. Cameras, booK-form and collapsible. - A folding pocket-camera comprises two frames A, B hinged together at one end The frame A carries the rear wide end of the bellows C. The frame B carries the lens D, and a folding sight V and finder S. The frames A, B are held in extended position by arms F pivoted to the frame A and with slots g engaging pins h on the frame A.
Patent GB-196866-A (GB)
Title: Improved appliance for assisting a person who is blind or has defective sight to write
IPC: G09B21/00
Filed: 1922-10-16
Abstract: 196,866. Woodley, E. H. Oct. 16, 1922. Facilitating writing.-An appliance for facilitating writing by the blind, or by persons with defective sight, comprises a plate or board a having on two sides parallel guides b, c in which slides a cross-piece formed of two members e, f spaced apart to provide a gap for a line of writing, the cross-piece being provided at each end with spring ball catches housed in knobs k and engaging, with audible clicks, in holes n at line intervals apart in the outer guide members b. A clamping-bar g is provided to secure a sheet or pad of paper on the board.
Patent GB-629053-A (GB)
Title: Improvements in or relating to dielectric materials
IPC: H01G4/22
Filed: 1947-10-22
Abstract: 629,053. Condensers. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Oct. 22, 1947, No. 28235. Convention date, Dec. 4, 1941. Drawings to Specification. [Class 37] A dielectric material, especially for capacitors comprises a liquid mixture of a diaryl sulphone and at least one halogenated aromatic compound having a freezing point below that of the sulphone. Phenyl xylyl sulphone, tolyl xylyl sulphone or a mixture of these is mixed with an equal weight of diphenyl chlorinated to 50-60 per cent of maximum chlorination. The mixture may be combined with kraft paper. A halogenated aromatic compound of low freezing point, e.g. trichlorobenzene, tetrachlorbenzene, tetrachlorethylbenzene or pentachlorethylbenzene may be added, and may replace the diphenyl chloride. The acidity content of the mixture may be reduced by treating it with Fuller's earth at 100‹ C. and then filtering it.
Patent GB-280189-A (GB)
Title: Improvements in and relating to flexible insulating material
IPC: H01B3/04
Filed: 1927-10-25
Abstract: 280,189. British Thomson-Houston Co., Ltd., (Assignees of Adams, L. V.). Nov. 8, 1926, [Convention date]. Insulting materials.-A flexible insulating material consists of laminations such as paper 1, 3 and mica flakes 2 cemented with a drying oil which has been heated for a sufficient time to carry it through the gel stage to the condition of a thick liquid. The oils used may be linseed, perilla or china-wood or a semi-drying oil such as castor oil. In the case of china-wood oil the degelling process is facilitated by an admixture of about 1 per cent of linseed oil which has itself been degelled. Natural gums or condensation products such as copal and cumar, may be added to the oils. In the manufacture of the material. the degelled oil is applied to the paper support for the mica in solution in naphtha &c. The impregnated paper is baked at 140‹ C. for one or two hours, and the degelled oil applied without a solvent such as by painting. One or more layers of mica flake are then applied and a second layer of paper is applied over them. The whole is then consolidated by pressure and baked at about 140‹ C. to render the oil rubbery.
Patent GB-1311328-A (GB)
Title: Vulcanization of epihalohydrin polymers
IPC: C08K13/02
Filed: 1970-06-11
Abstract: 1311328 Vulcanizing epihalohydrin polymers ASAHI GLASS CO Ltd 11 June 1970 [12 June 1969 5 Sept 1969 14 Oct 1969 28 Oct 1969 9 Dec 1969] 28326/70 Headings C3P and C3R Epihalohydrin homopolymers and copolymers with other epoxides (e.g. alkylene oxides, perfiuoroalkylene oxides, and glycidyl ethers) are vulcanized by heating with a two-part formulation comprising (1) at least one of the following, viz. nickel carbonates, basic lead sulphates and sulphites, and dithiocarbamates of sodium, copper, cadmium, lead, antimony, bismuth, selenium, tellurium, manganese, iron, cobalt and amines, in conjunction with (2) at least one of the following, viz. 2-mercaptoimidazolines, 2 - mercaptopyrimidines, thioureas and polyamines. In a modification of the above process the above polymers may be covulcanized with a sulphur-curable rubber using a formulation as above to which has been added sulphur. Sulphur-curable rubbers include natural, styrene-butadiene, isoprene, polychloroprene, acrylonitrile-butadiene, isoprene - isobutylene, ethylene - propylenediene terpolymer, cis-polybutadiene, cis-polyisoprene and propylene oxide-allylglycidylether rubbers. Other conventional compounding agents such as zinc stearate, nickel dibutyldithiocarbamate, furnace black, zinc oxide, stearic acid and polymerized trimethyldihydroquinoline may also be incorporated.
Patent GB-1113585-A (GB)
Title: Improvements in and relating to electroless deposition
IPC: C23C18/36
Filed: 1966-06-24
Abstract: An electroless plating solution of pH at least 8 comprises a water soluble cobalt salt e.g. sulphate, acetate, chloride or sulphamate, hypophosphite ions, ammonia, and an unsubstituted short chain aliphatic dicarboxylic acid anion, e.g. malonate or succinate.  The molar ratio of cobalt ions to hypophosphite ions is from 0.15 to 2.0 and the ratio of cobalt ions to carboxylic acid is 1.  If the substrate is copper, it is first dipped in hydrochloric acid, and then palladium chloride, and when it is plastics, ceramic or glass it is roughened, etched, immersed in stannous chloride and then in a palladium solution.  The temperature of the solution may be 70 to 80 DEG C.
Patent GB-700229-A (GB)
Title: Process for the preparation of polyazodyestuffs
Filed: 1951-12-04
Abstract: Metallized dyes are obtained by coppering under demethylating conditions polyazo dyes of the formula <FORM:0700229/IV (c)/1> where one A is the residue <FORM:0700229/IV (c)/2> and the other is an o-carboxyaryl or o-methoxyaryl radical which may be further substituted (including by arylazo radicals); R is the residue of an o-coupling mono- or di-hydroxynaphthalene mono-, di -or tri-sulphonic acid or of an amino-, alkylamino-, alkylamino, arylamino- or acylaminonaphthol-mono- or di-sulphonic acid; the dyes may be partially coppered before the introduction of the second A-N=N- radical into the naphthalene nucleus.  The starting materials are made by coupling diazotized A-NH2 twice in either order with 1 : 6-dihydroxynaphthalene-3-sulphonic acid or with J acid and replacing the amino group by hydroxyl.  Coppering may be effected with a copper tetrammine complex in alkaline solution, or with in the melt with copper salts and alkali salts of aliphatic monocarboxylic acids.  The products dye cotton and regenerated cellulose in blue to grey tints. Examples show the coppering of dyestuffs prepared as follows: (1) 1-naphthol-3 : 8-disulphonic acid \sMdianisidine--> 1 : 6-dihydroxynaphthalene 3-sulphonic acid \sM 4-sulpho-anthranilic acid; (2) 1-naphthol-3 : 8-disulphonic acid \sM dianisidine --> copper complex of dyestuff 1 : 6-dihydroxynaphthalene 3-sulphonic acid\sM (a) anthranilic acid or (b) 5-nitro-anthranilic acid; (3) 1-naphthol-3- : 6-disulphonic acid \sM dianisidine --> copper complex of dyestuff 1 : 6-dihydroxynaphthalene - 3 - sulphonic acid \sM4-sulphoanthranilic acid; (4) 1-naphthol-3 : 6 : 8 - trisulphonic acid \sM dianisidine --> copper complex of the dyestuff 1 : 6-dihydroxynaphthalene-3-sulphonic acid\sM(a) anthranilic acid, or (b) 5-nitro-anthranilic acid; (5) 5-nitro-2-aminoanisole-4-sulphonic acid-->1 : 6-dihidroxynaphthalene-3-sulphonic acid\sMdianisidine-->chromotropic acid; (6) 5-aminosalicylic acid-->cresidine-->1 : 6-dihydnaphthalene-3-sulphonic acid \sM dianisidine --> 1-naphthol-3 : 6 : 8-trisulphonic acid.  The dianisidine couples in the 5-position of the 1 : 6-dihydroxynaphthalene-3-sulphonic acid in (4) (a) and in the 2-position in the other cases.  The second coupling to this acid takes place in the presence of pyridine and ammonia.  A list is given of further dyestuffs prepared showing 5-sulpho-anthranilic acid, 5-chloro-anthranilic acid and 5-nitro-4-sulpho-anthranilic acid as alternative components A and methylamino-, ethylamino-, propylamino, anilino-, acetylamino-, benzoylamino- and phenoxyacetylamino-anilinonaphtholsulphonic acids as R.  Other suitable components are listed.
Patent GB-1191196-A (GB)
Title: Improvements in or relating to an Air Guiding Comb Tooth for an Air Jet Weaving Loom
Inventor: VYSTRCIL KAREL
IPC: D03D47/00
Filed: 1968-06-14
Abstract: 1,191,196. Air jet loom. VYZKUMNY A VYVOJOVY USTAV ZAVODU VSEOBECNEHO STROJIRENSTVI. 14 June, 1968, No. 28440/68. Heading DIE. On a guiding comb tooth having arcuate and linear portions 2, 3 defining a thread exit slot 4 the portion 7 of a frusto-oonical surface 6 opposite the slat has a different inclination to the plane of the tooth than the remainder of the surface. The portion 7 may be inclined at a steeper angle, may be perpendicular to the blade, or may be oppositely inclined to the remainder of the surface 6. The disturbance of the air jet caused by the portion 7 balances that caused by the slat, so that the weft travels in that part of the jet moving at maximum speed.
Patent GB-753656-A (GB)
Title: Improvements in or relating to aircraft
Inventor: GRIFFITH ALAN ARNOLD
IPC: B64C29/00
Filed: 1951-12-05
Abstract: 753,656. Propelling aircraft. ROLLS-ROYCE, Ltd. Nov. 3, 1952 [Dec. 5, 1951], No. 28564/61. Class 4. In a supersonic aircraft a number of gas turbine propulsion engines are arranged in the nose of the aircraft, have air intakes in an annular duct and exhaust through several ducts on each side of the fuselage. Each exhaust has an adjustable deflector to enable lift forces to be developed. As shown, the turbines 31d, 31e, 31f are arranged circumferentially round the inner wall structure 27 and inside the coaxial outer wall 26. The turbines draw air through the annular space between 26, 27 behind the shock-wave 30 developed by the conical extension 28 of 27. The gases from the exhaust ducts 32d, 32e, 32f which have the adjustable deflector plates 33 pivoted at their upper edges, generate lift forces at the plates for vertical flight or to assist take-off or landing. Specification 753, 657 is referred to.
Patent GB-721652-A (GB)
Title: Centrifugal apparatus for separating suspended particles from gases
Inventor: MCBRIDE CHARLES BARCE
IPC: B04C5/28
Filed: 1952-11-13
Abstract: 721,652. Centrifugal separators. THERMIX CORPORATION. Nov. 13,1952, No. 28634/52. Class 23. A centrifugal separator is provided having a supply chamber through which the gases are delivered towards a rear wall 14 in front of which are separating chambers 15, Fig. 2, each with side walls 16 and a wedge-shaped front wall 17 forming funnel-shaped passages 18 in advance of the separating chambers. The gases pass from the passages 18 through passages 19, 20 and into the separating chambers each of which is divided by a vertical wall 21, which may be of stepped formation, Fig. 1, into a plenum chamber 22 and a dust-collecting chamber 23. Centrifugal separating tubes 24 mounted in the partition are provided with offtake pipes 25 extending through the rear wall 14. Gases enter the tubes 24 through annular spaces 26 around the off-take pipes, inclined guide vanes 27 being arranged in these spaces to give a rotary motion to the gases. Thus the suspended particles acquire a momentum which throws them into the dust chamber 23, while the gases pass out through the pipes 25. From each dust chamber 23 the dust passes into hoppers. Heavier particles may be stopped by the rear wall 14 before entering the separating tubes 24 and deflected by baffles 33 in vertical channels 32 to a hopper. An electric precipitator may be placed behind the rear wall of the supply chamber.
Patent GB-363425-A (GB)
Title: Method of making sheet packing and moulded packings
IPC: F16J15/10
Filed: 1930-09-24
Abstract: In making stuffing-box &c. packing by admixing mineral fibres in the form of aqueous dispersions with aqueous dispersions of a plastic binding medium and consolidating the whole by a filtering operation, the consolidated material is of such consistency that p  the waste obtained after cutting or stamping washers therefrom can be admixed with the original non-consolidated material for re-use. The washers obtained may be treated after drying by pressing in suitable moulds. The packing may also contain animal and vegetable fibres and a fixing agent such as acetic acid may be added.  Specifications 347,123, 349,102, 349,581, and 363,716, [Group XXVI], are referred to.
Patent GB-898338-A (GB)
Title: A process of preparing hydrogen and carbon monoxide from mixtures of hydrocarbons orgases containing them and steam
IPC: C10G9/00
Filed: 1958-09-05
Abstract: 898,338. Combustion gas. BERKHUIJSEN, E. H., and KEMPEN, H. W. J. Sept. 5, 1958 [Sept. 7, 1957], No. 28656/58. Class 55 (2). Hydrogen and carbon monoxide, or gases containing them are obtained by passing a mixture of a hydrocarbon-containing gas and steam through a zone maintained at not more than 900‹ C., but preferably above 700‹ C., so as to convert ethane and hydrocarbons containing more than 2 carbon atoms to methane, ethylene and compounds of carbon and oxygen, and thereafter heating the mixture to above 1000‹ C. The process, which is particularly applicable to the conversion of refinery gas to a gas of lower calorific value and density, may be carried out (a) cyclically, by passing the mixture successively through the two reactors which have been heated to the required temperatures until the temperatures thereof fall below the necessary levels, whereupon the reactor temperatures are raised once more and the process repeated,- or (b) continuously, in externally heated reactors.
Patent GB-647267-A (GB)
Title: Small electric machine
IPC: H02K15/16
Filed: 1947-10-27
Abstract: 647,267. Dynamo-electric machine casings. VAN DER HEEM N.V. Oct. 27, 1947, No. 28696. Convention date, Nov. 9,1946. [Class 35] A small dynamo-electric machine comprises a rotor 1 placed in a stator 2 with bearings 9, 10 supported by adjustable mountings 6, 7, both bearings being arranged in rubber sleeves 11, 12 provided in the mountings. The latter are secured to a flanged part 4 of the stator casing 3 and to an upper shield 5 respectively. The shield 5 is secured to a flanged part of the casing 3 by screws passing with ample play. Similar securing is made between the flanged part 4 and the bearing mounting 6. Each flanged part of casing 3 is provided with a fitting pin to adjust the rotor.
Patent GB-795914-A (GB)
Title: Improvements in or relating to photography
IPC: G03C5/305
Filed: 1956-09-20
Abstract: A pyridine 2 : 6-dicarboxylic acid is used to counteract the effects of hard water in photographic processing baths.  It may be used alone in aqueous solution or in conjunction with dissolved photographic reagents.  Besides the 2 : 6-dicarboxylic acid, the 2 : 4 : 6-tricarboxylic acid and the 2 : 6-dicarboxy-4-hydroxy acid are referred to.  Specifications 725,573 and 783,887 [both in Group XX] are referred to.
Patent GB-490880-A (GB)
Title: Improvements in electric hot plates
IPC: H05B3/70
Filed: 1937-10-21
Abstract: 490,880. Electric hot - plates. CHALLET, E. Oct. 21, 1937, No. 28780. Convention date, Jan. 13. [Class 39 (iii)] An electric hot-plate 1 is provided with a spiral channel containing a heating element 2 extending throughout the entire length of the channel which extends over the entire area of an annular zone of the plate, and the thickness of this zone, reckoned from the upper plane surface of the plate to the nearest point of the channel, is reduced along a radial line from the centre of the annular zone towards the outer and inner edges of the latter. The heating plate may be annular, in which case its central opening is filled by an accordion-shaped metal web.