baber/WOPTO huggingface dataset:
Patent GB-463535-A (GB)
Title: Improvements in means for mounting wooden airscrew blades
IPC: B64C11/04
Filed: 1936-11-02
Abstract: 463,535. Air-screws. HEIN, H., (trading as HEINE, MOBELFABRIK PROPELLERWERK, H.) Nov. 2, 1936, No. 29728. Convention date, Nov. 2, 1935. [Class 114] Blades of wooden air screws adapted to be secured in metal hubs are provided with a conical root having two or more recesses with which a hub sleeve is connected in the manner of a bayonet joint. The spaces remaining after turning the sleeve into fixed position are filled by wedge-shaped members which are secured in position by a nut. The root of a blade 1 has two recesses 6 which have radial surfaces 16, and the bore of the hub sleeve 10 is correspondingly shaped so as to taper off and has recesses 15 so that when the root is inserted in the sleeve and turned through 90‹ the parts are locked. Contact surfaces 3 and 5 of the root and hub are preferably formed spirally with reference to the blade axis. When the hub sleeve is in position the openings 6 and 15 are filled by inserting wedge-shaped members 8 and final tightening is effected by means of nut 13 acting through a plate 9. The inserted pieces may be provided with a bonding agent, such as synthetic resin.
Patent GB-757780-A (GB)
Title: Improvements in or relating to stabilized compositions comprising monomeric 1,1-dicyano ethylene
Inventor: SACHARA EUGENE FRANCIS
Filed: 1954-10-15
Abstract: Stabilized polymers are made by polymerizing vinylidene cyanide containing 0.01 to 10.0 per cent by weight of a halosulfonic acid or a sulfuryl halide alone or in admixture with another monomer, e.g. vinyl acetate, and in the presence of a polymerization catalyst, e.g. 2 : 6-dichlorobenzoyl peroxide.  Specified stabilizers are fluorosulfonic, chlorosulfonic, bromosulfonic and iodosulfonic acids; sulfuryl fluoride, sulfuryl chloride, sulfuryl chloride fluoride and sulfuryl bromide.  The stabilized polymer may be spun into colourless yarns.ALSO:A stabilized composition comprises crude unstable monomeric 1:1-dicyanoethylene and, as a stabilizer therefor, a halosulfonic acid or a sulfuryl halide present in a concentration of 0.01 to 10.0 per cent by weight.  The crude 1:1-dicyanoethylene is preferably produced from the pyrolysis of 1-acetoxy-1:1-dicyanoethane.  The stabilizer may be sprayed into the condensing pyrolysis product as the latter enters the receiver, or it may be incorporated in a quick quench liquid; alternatively it may be added to the 1-acetoxy-1:1-dicyanoethane so that it is carried over into the pyrolysis product.  Specified stabilizers are fluorosulfonic, chlorosulphonic, bromosulfonic and iodosulfonic acid; sulfuryl fluoride, sulfuryl chloride, sulfuryl chloride fluoride and sulfuryl bromide.  Specifications 653,468 and 677,825 are referred to.
Patent GB-450798-A (GB)
Title: Improved process for preventing the infection of milk
IPC: B65D45/20
Filed: 1935-10-29
Abstract: 450,798. Milk cans. JENSEN, 0. V., 61, Aalholmsvej, Copenhagen. Oct. 29, 1935, No. 29835. [Class 66] [See also Group VI] A milking and transport can 1 has a neck 2 with a projecting ledge 3 at its base on which seats a funnel 4 over the top of which is arranged a filter con. sisting of two gauze sieves 6, 7 between which is inserted a cotton &c. filter 8. The can has a lid 9 with rubber pack. ing 10 which is pressed on the neck 2 to form a hermetic seal by clamps 11 pivoted to lugs 13 on the neck.
Patent GB-1110586-A (GB)
Title: Method for preserving canned foodstuffs and resulting article
IPC: A23L3/3517
Filed: 1965-07-14
Abstract: In the preservation of a foodstuff within a container, there is added to the foodstuff either before or after the foodstuff has been placed in the container, a microbial growth inhibiting amount of a compound having the formula:  <FORM:1110586/A1-A3/1> wherein R represents an alkyl group of 1 to 8 carbon atoms, X comprises hydrogen, alkali metal or alkaline earth metal, and n is an integer equal to the valence of X, and the container containing the foodstuff and the compound is sealed.  The foodstuff may first be admixed with the compound, in a proportion within the range 1-300 parts by weight of the compound per million parts by weight of the foodstuff, and then placed into the container which is thereafter hermetically sealed either in the presence or absence of vacuum and heat processed e.g. at a temperature within the range 140 DEG -300 DEG F. for a period of time below that required for achieving sterilization of the foodstuff in the absence of the compound.  The esters either singly or mixtures thereof may be employed in conjunction with the usual treatments for obtaining sterilization, such as heat, sonics, microwaves and radiation. The inside of the container may be coated with the compound. Specified compounds: methyl, n-propyl, n-butyl or n-heptyl parahydroxybenzoate; the compounds may be employed in the form of solutions or dispersions in propylene glycol.  Foods: dairy p products (milk and eggs), corn, fruit and vegetables (mushrooms, tomatoes and peas), and meat (poultry and fish).
Patent GB-481680-A (GB)
Title: Improvements in sheaths or scabbards for knives and methods of producing same
IPC: B26B29/02
Filed: 1936-11-03
Abstract: 481,680. Steels. FURLER, E. Nov. 3, 1936, No. 29951. [Class 60] [Also in Groups XXII and XXI] A sheath or scabbard for a knife is case-hardened to serve as a honing implement. A sheath for a knife 1 comprises two parts 4, 2 the latter being case-hardened. Flutings 3 assist the honing action. The member 2 may be formed from laminated sheet metal, the outer layer only being hardened.
Patent GB-1451960-A (GB)
Title: Power transistors
IPC: H01L23/525
Filed: 1973-06-23
Abstract: 1451960 Semi-conductor devices FERRANTI Ltd 28 June 1974 [23 June 1973] 29955/73 Heading H1K A power transistor is made by forming a plurality of base and emitter regions 12, 13 comprising cells in a common collector region 11 connecting the cells by associated conductors of a pattern of conductors 14 to a common conductor 16, each conductor of the pattern 14 having a por tion 21 which ruptures on passage of a threshold current through it, and passing a current through the cells so that defective cells, which pass excessive current, are fused out while good cells are not. The rupturable portion 21 may be an area of smaller cross-section than the remainder of the pattern 14. Alternatively the current density in the pattern 14 may be made larger than in the common conductor 16 by making the conductor 16 a double layer such as solder on a different material, so that a conductor associated with a defective cell ruptures adjacent the common conductor 16. Emitter conductors 17 joined to a common conductor 18 may also have a rupturable portion.
Patent GB-872171-A (GB)
Title: An improved plug and socket electrical connector
IPC: H01R13/193
Filed: 1957-09-25
Abstract: 872,171. Two-part couplings. SALE, B. Sept. 24, 1958 [Sept. 25, 1957], No. 30066/57. Class 38 (1). In a socket connector comprising an outer casing 1, 12, enclosing insulating blocks 2, 3, carrying resilient socket contacts 11, the casing part 12 carries a cam 8 operable by an external handle 5 to compress the contacts 11 on to the pins 14 of a plug. Metal and insulating strips 6, 7 are interposed between the contacts and the cam or the cam may be made of insulating material. Alternatively the contacts may have insulating strips in their side walls. In the operative position of the cam, the handle 5 engages the top of the plug.
Patent GB-328028-A (GB)
Title: Improvements in hydraulic transmission gears and brakes
IPC: F16D33/16
Filed: 1928-10-17
Abstract: 328,028. Sinclair, H. Oct. 17, 1928. Energy-absorbing elements. - The quantity of liquid in a hydraulic coupling or brake is varied to modify the slip by utilizing the energy of motion in the coupling or brake to transfer liquid from the working chamber to a reservoir and vice versa. In one form the coupling is provided with a stationary scoop tube 12, Fig. 1, through which liquid passes via an outlet 16 and pipe 28, Fig. 3, to a reservoir 29 containing liquid under pressure; liquid returns from the reservoir through a pipe 31 and inlet 18, under control of a valve 32. In a modification an open tank 37, Fig. 4, is disposed at a slight elevation, the flow of liquid to the coupling being determined by the position of a displacer 38 or of the end of the pipe 31. In another form, a reservoir 42, Fig. 5, rotates with the coupling and a member 45 may be operated to cause a valve 46 to close ports 48, and to brake a vaned member 43, so that the liquid impinges against the vanes and enters the reservoir. A further modification employs two vaned members 43, 55, Fig. 7, braking of the member 43 forcing liquid to pass to the reservoir 54, and braking of the member 55 causing its return.
Patent GB-727027-A (GB)
Title: Improvements in or relating to textile cone winding machines
IPC: B65H54/50
Filed: 1951-12-24
Abstract: 727,027. Winding yarn. HOLT, Ltd., T., and LEE, G. Dec. 23, 1952 (Dec. 24, 1951], No.30103/51. Class 120 (2). Means for preventing pattern winding in a textile cone winding machine includes a shaft 13, a traverse cam and driving roll 11 mounted thereon, a chain wheel 16 having a long boss 17 formed in its periphery with a helical cam groove 18, a bush 19 secured to the traverse cam 11 and having attached to it a chain wheel 21, the bush 19 being slidably mounted on the boss 17 and furnished with a peg 22 engaging the cam groove 18, whereby driving motion imparted to the chain wheels 16, 21 which differ by one tooth, reciprocates slowly the traverse cam 11 to give a differential drive to the yarn package 10. When a plurality of cams 11a, Fig. 2, not shown, are carried by a single shaft 13a, the shaft may be connected to a bushing 19a and all the cams 11a reciprocated in unison thereby.
Patent GB-263769-A (GB)
Title: Amplifying apparatus for crystal receiving sets, in wireless telephony and telegraphy
IPC: H03F13/00
Filed: 1926-11-29
Abstract: 263,769. Renaud, C. A. Dec. 24, 1925, [Convention date]. Magneto-microphone relays.-In an amplifying apparatus for crystal sets in wireless telegraphy and telephony, an ordinary receiver x has a stiff diaphragm e carrying a carbon disc e<1> with which variably contacts the carbon point d<2> of a vibrator d in a circuit comprising a low-voltage battery and a head-piece or loud-speaker. The receiver x is rotatably mounted in supports b<2> adjustably carried by pillars b which are mounted on an insulating base a. The vibrator d is carried by a post c adjustably mounted in the base. Terminals f, f<1> and g, g<1> mounted in the base are connected to the listening device and the battery and connecting wires h, h<1>, h<2> are arranged in the hollow base to form a circuit x, b, f<1>, listening device, battery, c, d, d<2>, e<1>, e. The diaphragm comprises a central disc connected to a peripheral ring by two radial arms. The carbon point d<2> carries a weight d<3>. The vibrator is adjusted by a screw c<5>. If the box of the receiver is of insulating material, a connecting wire is soldered at one end to the diaphragm e and fixed to one of the pillars b at the other. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of two ordinary diaphragms in contact to form the stiff diaphragm required, one of them carrying the carbon disc. This subject-matter does not appear in the Specification as accepted.
Patent GB-341037-A (GB)
Title: Improvements in advertising signs
IPC: G09F7/12
Filed: 1929-10-04
Abstract: 341,037. Signs. WASILEWSKI, Z., Stryj, Poland. Oct. 4, 1929, No. 30184. [Class 3 (ii).] Signs comprising indiarubber suckers 1 formed with internal cavities 2, Fig. 1, are adapted to adhere to their support over substantially their whole surface, and are provided with additional parts of coloured glass, wood, &c. Fig. 5 shows the cross-section of a letter I having a central panel 7 of coloured glass ; in alternative forms, the additional parts may comprise side flanges or complete coverings. The smaller signs are pressed directly on to the supporting surface, either by hand or else by means of an implement designed for the purpose which engages grooves in the suckers. The cavities of the larger signs, which may be provided with internal strengthening members, are preferably exhausted by an air pump, attached. either to a valve mounted on the sign or else to a flat-shaped pipe of fine bore which tapers substantially to a point and is inserted under the edge of the sucker. The suckers may be provided with additional rubber side flanges 14, Fig. 7, which are used to hold paper notices, &c.
Patent GB-739488-A (GB)
Title: Improvements in or relating to flexible electromagnetic waveguides
Inventor: LINES ALBERT WALTER
IPC: H01P3/14
Filed: 1952-12-01
Abstract: 739,488. Flexible tubes. MINISTER OF SUPPLY. Nov. 27, 1953 [Dec. 1, 1952], No. 30360/52. Class 99 (2). [Also in Group XL (b)] A continuous metallic tube 1, e.g. rectangular in cross-section and of gold, silver or copper or a combination of these metals, has corrugations or undulations 6 extending. transversely of the longitudinal axis thereof and is supported in a body 2 of flexible material adherent to the outer surface of the tube and of natural or synthetic rubber, a synthetic rubber cement such as " Boscoprene No. 551 " (Registered Trade Mark), or rubber tape wound around the tube and bonded with rubber cement. The corrugations may change from concave to convex formation across adjacent sides of the tube, and the body 2 may be reinforced by canvas, cotton or silk fibres or threads, or steel wire incorporated in the body; alternatively, the threads, fibres or wires are helically wound around the tube within or on top of the body. The tube 1 which is used as an electromagnetic wave-guide has, as shown in Fig. 3, each corrugation formed by a radius'R, the centre of which is disposed at a distance R/3 from the mean line of the wall of the tube. In making the tube, a layer of metal is deposited over the silver-mirrored surface of a corrugated mandrel of methyl methacrylate polymer or polystyrene, the mandrel afterwards being dissolved by a solvent and before or after application of the body 2; alternatively, a mandrel of aluminium or a low-melting-point alloy is used. A flash of brass may be deposited over the tube 1 to facilitate adhesion of the body 2.
Patent GB-500345-A (GB)
Title: Improvements in or relating to radio direction finding systems
IPC: G01S1/02
Filed: 1938-10-20
Abstract: 500,345. Directive wireless signalling. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. Oct. 20, 1938, No. 30418. Convention date, Oct. 20, 1937. Addition to 482,101. [Class 40 (v)] The parent Specification describes a continuoualy-rotating frame aerial which feeds signal-voltage to one pair of deflecting plates in a cathode-ray tube, whilst the other pair of deflecting plates is fed by a voltage derived from a light-control system to correct for quadrantal error. Part of the correcting voltage is related to the instantaneous orientation of the aerial, and part to the sine curve of error, both being derived from graded translucent masks which rotate with the aerial and pass rays of light from two independent sources of light to two photo-electric cells connected in parallel to the deflecting plates of the indicator. According to the present invention only one source of light d is used, the rays being split by a prism f and passed through two sets of mirrors t, k and h, n respectively, before being recombined at n and applied to a photo-electric cell o which supplies one pair of deflecting plates in the indicator p. One beam of light is controlled by the graded mask b, according to the instantaneous setting of the frame aerial, and the other by a superposed film, or a second mask C, which applies a sine-curve correction, both masks being mounted on the aerial shaft a. Signal voltage is supplied to the indicator from the receiver (not shown).
Patent GB-916704-A (GB)
Title: Dithiophosphoric acid esters
IPC: A01N57/12
Filed: 1960-09-02
Abstract: The invention comprises thiophosphoric acid esters of the general formula:-  <FORM:0916704/IV (b)/1> in which R1 and R2 are C1-C4 alkyl radicals, R3 is a mono- or di- C1-C4 alkylamino group, a cyano group, a phenyl or chlorophenyl group, an aminocarbonyl or a mono- or di-C1-C4 alkylaminocarbonyl group or another <FORM:0916704/IV (b)/2> and wherein the alkylene radical contains up to 4 C atoms and may be interrupted by a hetero atom.  They may be obtained by reacting appropriate O.S-dialkyl-dithiolphosphoric acid salts with appropriately substituted alkyl halides, e.g. BrCH2CN, BrCH2Br, ClCH2-C6H4p.Cl., ClCH2-2,4-dichlorophenyl, ClCH2\t CH2CN, ClCH(CH3)CONH2, BrCH2OCH2Br, ClCH2SCH2Cl, BrCH2CONHCH3, ClCH2CH2N (C2H5)2 and ClCH2CH2CON(CH3)2.  Examples are given and the products have insecticidal properties (see Group VI).  The O.S-dialkyldithiolphosphoric acid salts may be obtained by reacting O.O.S-trialkylthionophosphoric acids esters with appropriate alkali metal mercaptides.  Specification 806,148 is referred to.ALSO:An insecticidal composition contains a solid or liquid diluent or carrier and as active ingredient a dithiophosphoric acid ester of the formula <FORM:0916704/VI/1> in which R1 and R2 are C1-C4 alkyl radicals, R3 is a C1-C4 alkyl (or dialkyl) amino group, a cyano, phenyl, or chlorophenyl group, an aminocarbonyl or C1-C4 alkyl (or dialkyl) aminocarbonyl group, or another <FORM:0916704/VI/2> group, and wherein the alkylene radical contains up to 4 carbon atoms and may be interrupted by a hetero atom (see Group IV(b)). Specified carriers or diluents are talc, chalk, bentonite, clay, water (if desired with an emulsifier), alcohols, ketones and liquid hydrocarbons.  Known insecticides and/or fertilisers may also be present.  Specification 806,148 is referred to.
Patent GB-1196136-A (GB)
Title: Improved Apparatus for use in Filleting Fish
Inventor: PEACOCK JOHN
IPC: A22C25/16
Filed: 1967-07-01
Abstract: 1,196,136. Filleting fish. J. PEACOCK (Trio Maskinindustri A.S.). 1 July, 1967, No. 30439/67. Heading A2U. An apparatus for filleting fish comprises means for passing the fish between opposed cutting means comprising rotatable knives and urged together by resilient means, at least one element of one of the cutting means being adapted to engage the abdominal ribs in a substantially non- cutting manner, and the one cutting means including knives which are of such construction or of such a degree of sharpness that they are capable of cutting fish flesh but not fish bones. In Fig. 1 the apparatus comprises two pairs of rotating knives 15, 16 urged together by adjustable spring 21, and a non-cutting slide 22, the blunt edge 23 of which engages the abdominal ribs to prevent the knives 16 contacting the ribs. In another embodiment the slide 22 is eliminated and the knives 16 have a notched peripheral edge, the notches 27 being sharp and the edges 26 being blunt. In use the edges 26 engage the ribs and prevent the notches 27 engaging the ribs. The slide 22 may be used with the notched knives.
Patent GB-293623-A (GB)
Title: Improvements in or relating to shirt cuffs
IPC: A41B7/04
Filed: 1927-11-14
Abstract: 293,623. Smith, C. J. Nov. 14, 1927. Shirt sleeves and cuffs. - Relates to detachable and reversible shirt cuffs for sleeves of the kind in which the end of the sleeve and cuff are provided with co-operating fastening means, and consists in a construction of wrist band having a, plurality of symmetrically, arranged buttons 14, Fig. 1, and being extended to form a flap 13 and a construction of cuff with an inner fold and outer fold, the sinner being provided with buttonholes 16 to regis. ter with the buttons on the wrist band. This construction enables the outer fold to mask the buttons.
Patent GB-1218596-A (GB)
Title: Frictionally contacting parts
Inventor: POLTI JEAN-LOUP
IPC: F16C33/04
Filed: 1968-06-26
Abstract: 1,218,596. Bearings. CENTRE STEPHANOIS DE RECHERCHE MECANIQUE HYDROMECANIQUE ET FROTTEMENT. 26 June, 1968, No. 30494/68. Heading F2A. A plain bearing comprises two contacting bearing surfaces, one being of gold, and the other constituted by a mixture of chromium and one or more chromium oxides, the surfaces being each fixed on a metal support. The gold surface is deposited on a nickel coating which is in turn fixed to the metal support, whilst the chromium surface is deposited directly on the metal support, which may be steel, or through successive layers of metals which are soluble in each other, such as nickel and cobalt. The chromium surface, obtained by plating or cementation, is polished with abrasive paper and then with alumina in air, the surface being allowed to heat up freely and partially oxidize.
Patent GB-1528315-A (GB)
Title: Slide magazine chain for optical projectors
IPC: G03B23/04
Filed: 1977-07-21
Abstract: 1528315 Optical magazine projectors ERNST LEITZ WETZLAR GmbH 21 July 1977 [13 Aug 1976] 30620/77 Heading G2J In a slide projector, slide magazines 5 are hinged together as at 9a, 9b, to form an endless chain moving around the sides of a rectangle.
Patent GB-893425-A (GB)
Title: Improvements in or relating to the manufacture of sintered copper bodies
Inventor: BROWN GEORGE ANGUS
IPC: C22C1/10
Filed: 1959-09-08
Abstract: A sintered copper body containing less than 1% of a dispersed phase of one or more refractory oxides such as Al2O3, SiO2, MgO, or BeO is formed by precipitating from a solution of a copper salt, a copper compound which on heating forms copper oxide, and precipitating form a solution of a salt of the metal of the refractory oxide a compound which forms the refractory oxide on heating, mixing the precipitates, heating to form the respective oxides, heating the oxides in a reducing atmosphere to from the copper matrix and then compacting and sintering.  The precipitation from aqueous solutions of the respective metal salts is effected by the addition of aqueous solutions of alkali metal hydroxides, ammonia, alkali metal carbonates or oxalates and oxalic acid.  The mixed precipitates are ground to minus 300 mesh B.S.S. and the decomposition and reduction of the precipitate may be effected in a single operation by heating in a reducing atmosphere.  In an example, basic copper sulphate and basic aluminium sulphate are separately precipitated from aqueous solutions of copper sulphate and aluminium sulphate with aqueous ammonia.  After mixing, filtering and drying, the precipitates are heated in air at 850 DEG C.-900 DEG C., crushed to minus 300 mesh B.S.S., reduced in hydrogen at 300 DEG C. and then compacted at 35-50 tons p.s.i. and sintered in hydrogen or vacuum at 1040 DEG C.
Patent GB-604398-A (GB)
Title: A new or improved building unit and method for the manufacture thereof
IPC: E04F13/08
Filed: 1945-11-15
Abstract: 604,398. Composite building units. JENNINGS, H. W. K. (Kraus, C. W.). Nov. 15, 1945, No. 30635. [Class 87(i)] A composite building unit comprises overlapping rows of tapered shingles which are fastened together and to the facing sheet of a plaster board by staples, projecting into the body of the board which is cast thereon. In one'form, Fig. 1, a row of shingles 10 is overlapped by shingle butt ends 11 and backed by tar paper 12 and shingle tip ends 13, being secured together and to the plaster board facing sheet 38 by rows of staples 40, 41, 42. The sheet 38 covers the edges of the board which are tongued and grooved as at 17, 18. The lower edges of the shingles 10 extend below the shingle tips 13 and the plaster board 15. In another form, Fig. 16, two overlapping rows of complete shingles 75, 76 each backed with tar paper 77, 78 are provided. The tips of the upper row 75 extend beyond the plaster board 79 and a corresponding groove 80 is formed in the lower edge of the unit. In a continuous process for the manufacture of the units, one or two parallel conveyers receive in succession the rows of shingles, paper and plaster, and gauge and other members are provided to position and otherwise operate on the unit.