baber/WOPTO huggingface dataset:
Patent GB-737378-A (GB)
Title: Improvements in devices for holding the end of perforated photographic film
IPC: G03B17/30
Filed: 1951-11-14
Abstract: 737,378. Photographic film spools. KEHR, W., and STRAUSS, R. Nov. 14, 1951 [Nov. 25, 1950], No. 26718/51. Classes 98 (1) and 98 (2). A device for holding the end of perforated photographic film comprises means for loose engagement in the perforation of the film and guard means preventing casual disengagement of the film during winding thereof around the device in both directions, the guard means being spaced from the engagement means to enable the end of the film to pass therebetween and the device being so constructed that, in both directions of winding, the lengths of the film on opposite sides of the engagement means are only bent relatively to one another through an acute angle. As shown, a core 1 of a film spool has a cylindrical recess 1a parallel to its axis and opening into its periphery. An insert 2 formed by a metal plate bent into a hollow cylinder is placed in recess 1a, and has tongues 2a, 2b formed on one of its juxtaposed edges and passing below the other edge 4 which comprises a guard member. A film end 3 can be inserted between the edges, the perforations 3a engaging the tongues. The film can then be wound in either direction on the core without any sharp bending of the film.
Patent GB-518904-A (GB)
Title: Improvements in the manufacture of photographic sensitizing dyes and photographic emulsions sensitized therewith
IPC: G03C1/22
Filed: 1938-09-14
Abstract: 518,904. Sensitizing dyes. KODAK, Ltd. Sept. 14, 1938, No. 26813. Convention date, Sept. 14, 1937. Samples furnished. [Class 2 (iii)] [Also in Group XX] Sensitizing dyes for photographic emulsions of the general formula where D represents the non-metallic atoms required to complete a 1:4-dihydropyridine or 1:4-dihydroquinoline nucleus, R represents an aliphatic radicle, R<1> an alkyl group or an aryl group containing not more than two benzene rings, and Z represents the atoms necessary to complete a 5- or 6-membered heterocyclic nucleus, are made by reacting a monoacylated aminoacetic acid with a cyclammonium quaternary salt containing a #-aryl- or -arylacylaminovinyl group in alpha- or #-position, in the presence of an acid binding agent, e.g. the alkali salt of a lower fatty acid, and a waterbinding agent, e.g. a lower fatty acid anhydride. The heterocyclic nucleus may be a pyridine, quinoline, thiazole, benzthiazole, naphthathiazole, oxazole, benzoxazole, naphthoxazole, selenazole, or benzselenazole nucleus. In examples : (1) 1-(p-acetanilidovinyl)- benzselenazole ethiodide ; (2) 1-(#-acetanilidovinyl)- benzoxazole ethiodide ; (3) 3-(#-anilidovinyl)- thiazoline methiodide ; (4) 2-(#-anilidovinyl)- quinoline ethiodide ; and (5) 4-(#-anilidovinyl)- quinoline ethiodide are condensed with hippuric acid ; (6) 1-(#-acetanilidovinyl)-benzthiazole ethi6dide and (7) 1-(#-acetanilidovinyl)- benzoxazole ethiodide are condensed with aceturic acid ; and (8) l-(#-acetanilidovinyl)-benzthiazole ethiodide is condensed with propionyl glycine. Spectrograms of the dyes and details of the preparation of emulsions containing them are given. Specification 470,726 is referred to. Monoacylated aminoacetic acids are made by acylating glycine (aminoacetic acid). In examples, aceturic acid and propionylglycine are made by treating glycine with acetic anhydride and propionic anhydride respectively. Cyclammonium quaternary salts containing a #-arylaminovinyl group are made by condensing a quaternary salt containing a reactive methyl group with a diarylformamidine. If the condensation is effected in the presence of an acid anhydride, the products are acylated. Examples are given of the preparation of products by treating the ethiodides of 1-methylbenzoxazole, 1-methylbenzthiazole and lepidine with diphenylformamidine. Samples have been furnished under Sect. 2 (5) of the condensation produc s from (1) 2-(#- acetanilidovinyl)-alpha-naphthoxazole ethiodide and hippuric acid ; (2) 2-(#-acetanilidovinyl)-alphanaphthathiazole ethiodide and hippuric acid ; and (3) 2-( #-acetanilidovinyl)-alpha-naphthoxazole ethiodide and propionyl glycine.
Patent GB-623205-A (GB)
Title: Improvements in or relating to loudspeakers
IPC: H04R9/04
Filed: 1946-09-06
Abstract: 623,205. Loud-speakers. STANDARD TELEPHONES & CABLES, Ltd. Sept. 6, 1946, No. 26833. Convention date, June 7, 1943. [Class 40 (iv)] A loud-speaker has both its diaphragm and coil divided into a plurality of elastically-coupled parts, the adjacent parts of the coil and diaphragm being specially designed to respond to high frequencies. In addition, better lowfrequency response -is obtained by reducing the elasticity of the suspension, the consequent loss of centring (axial) force being compensated by providing an increase in field strength towards the two extreme limits of travel of the coil. The coils may be fed by wipers which then act also as a centring (radial) device for the coil. As shown, the diaphragm comprises exponentially tapered portions 13, 12, 11 and cap 16 elastically connected by elements 15, 14, 17. The coil consists of portions 6, 7, 8 elastically coupled to each other and the spider 10 by members 18, 19, 20. The coil 8, together with the cap 16, are of light weight, e.g. the wire may be of aluminium, so as to respond to high frequencies at which they are effectively dissociated from the remainder of the coil and diaphragm by the elastic members 18 and 17 respectively. The stiffness of the elastic member 19 is chosen so that it forms with the diaphragm 16 and the coil 7 a system resonant at the extreme highfrequency end of the audio range. At low frequencies the elastic couplings are effective to cause the coil and diaphragm assembly to vibrate as a whole. Fig. 4b shows the coil being fed by one of a plurality of wipers 23 which contacts a feeder strip 24 insulated at 25 from the centre polepiece.
Patent GB-640527-A (GB)
Title: Improvements in or relating to single point cutting tools
IPC: B23B27/00
Filed: 1947-10-07
Abstract: 640,527. Lathe and like tools. ZIMMERMAN, L. Oct..7, 1947, No. 26903. Convention date, Oct. 8, 1946. [Class 83 (iii)] A metal-cutting tool has a cutting edge extending part-way round the head of the tool on a curve, the tangent to which is at all points at a contant angle to a radius from the axis of the tool. The shank 11. has a notched shoulder 14 of which the side face 15 is an equi-angular spiral and the end face 16 is a helix so that the side clearance α and the end clearance remain constant as the tool is sharpened by grinding the top rake. Mathematical formulµ for the two curves are given. The tool illustrated is suitable for boring or facing, and other versions for screw-cutting or boring, in which the side face 15 and the end face 16 form a V-tooth, are described. The bore of the shank is hexagonal at 13 to fit a wrench for attaching the tool to a holder by means of internal threads 12; the bore may be used for the supply of coolant. Specification 118,017, [Class 83 (iii)], is referred to.
Patent GB-362017-A (GB)
Title: Improvements in and relating to articulated locomotives
IPC: B61C1/02
Filed: 1930-09-10
Abstract: 362,017. Railway vehicles. AVONSIDE ENGINE CO., Ltd., Fishponds, and GRIME, T., Ellesmere, Overndale Road, Downend, both in Bristol. Sept. 10, 1930, No. 27087. [Classes 103 (v) and 103 (vi).] Axle-trucks and bogies; combined buffer and draw-gear.-A locomotive having a main frame and two bogie units comprises the following features in combination: (a) The main frame 1 is supported on the bogies 7 by spherically-seated centres so arranged that each bogie is permitted a limited amount of fore-and-aft movement relatively to the main frame. As shown in Figs. 5 and 6, the upper member 2 of the centre is fixed to the main frame and is spherically seated in a member 3 which can slide longitudinally but not transversely in a lower member 4 fixed to the bogie frame. Centre bolts 5. prevent separation of the main frame from the bogies and pass through slots in the members 2, 4 and the bogie frame 7 so that they do not restrict the longitudinal play. (b) The main frame is steadied transversely by spring- loaded spherically-seated side bearings 8, Fig. 6, secured to the bogie frame and bearing against rubbing plates 9 fixed to the main frame. Cups 10 carry the bearing plates 8 adapted to bear against the rubbing plates 9 and are retained in spherical seats 11 by extensions of spindles 12 fixed to the seats 11 and sliding under the control of springs 15 in bearings 13 and stirrups 17 fixed to the bogie frames. (c) The main frame is provided with a rigid central cradle in which the driving engine, motor or motors, or final shaft of a transmission gear is placed, this cradle being adapted to receive all buffing and draw stresses. For this purpose a buffing and draw rod 29, Fig. 5, is connected at one end by horizontal and vertical pivots 30, 31 to a cross-beam 28 of the bogie frame, and at the other end by springs 32 to the central cradle of the main frame 1. The springs 32 take all buffing and draw-stresses, the longitudinal play in the bogie centres being sufficient to ensure this. The rod 29 may be arranged at the level of the bogie axles as shown in Fig. 4, in which case it is formed as a yoke structure. (d) The buffers and draw-gear, which may be of any type, are mounted on the bogie buffer beams.
Patent GB-1174710-A (GB)
Title: A Symmetrical Polyphase Network
Inventor: GINGELL MICHAEL JOHN
IPC: H03H7/21
Filed: 1968-06-07
Abstract: 1,174,710. Filter networks; modulation. STANDARD TELEPHONES & CABLES Ltd. 7 June, 1968, No. 27162/68. Headings H3R and H3U. A polyphase impedance network comprises a series element R in each phase and an element of different phase angle connected between the input of one phase and the output of an adjacent one. A number of cascade sections may be interconnected by transforming networks of the type described in Specification 1,174,709. In a three-phase network, Fig. 6 (not shown), either the series or the other elements comprise resistance and reactance. The circuits may be employed in N-path commutated networks, or in a modulator of the type described in the above mentioned Specification.
Patent GB-191478-A (GB)
Title: Improvements in hose-pipe connections and the like
IPC: F16L33/22
Filed: 1921-10-13
Abstract: 191,478. Harris, A. T., and Grant, C. A. Oct. 13, 1921. Joints with longitudinal pressure and with yielding outer part compressed.-In a device for connecting a flexible pipe to a rigid pipe, tap, &c. in which a sleeve B screwing on the stem A grips the hose c against the back of the enlarged extremity a<1> of the connector, the sleeve B is formed with a long conical chamber b<1>, and the construction is such that the hose cannot reach the screwed stem A. A device having an enlarged head a<1> and sleeve B at each end may be used for connecting two hose pipes. Specifications 16532/96 and 121,314 are referred to.
Patent GB-813195-A (GB)
Title: Improvements relating to collapsible umbrella frames
IPC: A45B19/06
Filed: 1956-09-05
Abstract: 813,195. Telescopic umbrellas. BREMSHEY, F., and EICKHORN, K. H. Sept. 5, 1956 [Sept. 24, 1955], No. 27207/56. Class 134 In an umberella having telescopic stick and rib parts and main and ancillary struts, the handle has an upper extension which is tapered towards the crown so that the upper edge of the handle cannot come into contact with the lower ends of the upper rib parts when the umbrella is telescoped. Damage to the cover which might otherwise occur through parts of the cover being clamped between the upper edge of the handle and the lower ends of the upper rib parts is thus prevented. In one arrangement, Fig. 2, the stick comprises telescopic parts 1 and 2 held in the extended position by a catch which is released by pressing a button 4 at the end of the handle 22. The ribs comprise telescopic parts 6 and 7, the upper part 6 having at its lower end a stop 9 to limit the movement of a sleeve 8 connected to the lower part 7. The handle 22 has an upper extension 25 of reduced diameter so that when the umbrella is telescoped the stop 9 slides over the rib part 7 into the wedge-shaped space 26 between the extension 25 and the rib part 7. The stop 9 slides on the extension 25 and cannot come into contact with the upper edge 24 of the handle. The lower part 27 of the handle is also of reduced diameter so that the handle has a barrellike form convenient for holding in the hand. A flange 28 is provided to prevent the handle slipping out of the hand and to enable the button 4 to be easily pressed. In the final stage of telescoping the umbrella the pawl 14 on the main slider 12 slides out of its lower locking position and the slider 12 is pushed into the hollow handle 22. In an alternative form, Fig. 3, the extension 25 of the handle 22 is tapered to such an extent that the stop 9 does not contact any part of the handle. The invention can also be applied to umbrellas in which the ribs consist of more than two parts.
Patent GB-784638-A (GB)
Title: Improvements in or relating to catalysts
Inventor: ELLINGER LEO PHILIPP
IPC: B01J31/22
Filed: 1954-09-21
Abstract: A copper acetylide catalyst, for use in the reaction between acetylene and formaldehyde to form 2-butyne-1:4-diol, is prepared by mixing a solution of a copper salt and a solution of an alkali metal silicate to precipitate a copper silicate material containing 15-60 per cent by weight of copper and then treating this material with acetylene.  Before treatment with acetylene the copper silicate may be washed and dried and broken into granules, or it may be extruded into rods or pelletted; to increase the copper content, the copper silicate may be impregnated with a solution of a copper salt and ignited.  The copper silicate may be suspended in water and treated with acetylene, or it may be suspended in aqueous formaldehyde and treated with acetylene in situ in the reactor at above 60 DEG  C.  A "cuprene inhibitor" such as bismuth may be included in the catalyst; inert materials, such as kaolin, may also be added.  In examples, catalysts are prepared starting from copper nitrate, water glass, and bismuth nitrate.ALSO:2 - Butyne - 1 : 4 - diol is prepared by reaction between acetylene and formaldehyde in the presence of a copper acetylide catalyst prepared by mixing a solution of a copper salt and a solution of an alkali metal silicate to precipitate a copper silicate material containing 15-60 per cent by weight of copper and then treating this material with acetylene (see Group III). The catalyst may also contain a "cuprene inhibitor" such as bismuth and an inert material such as kaolin.  In an example, acetylene is admitted at 20 atmospheres pressure and 80 DEG  or 100 DEG  C. to an autoclave containing the catalyst and a formaldehyde solution.  The product contains propargyl alcohol in addition to 2-butyne-1 : 4-diol.
Patent GB-273947-A (GB)
Title: Improved means of ventilating water closets
IPC: A47K13/26
Filed: 1926-11-02
Abstract: 273,947. Davenport, J. Nov. 2, 1926. Addition to 252,284. Closet basins; ventilating. -The seat frame 2 forming part of the ventilating fitting fits against a raised portion of the basin rim 1.
Patent GB-1115913-A (GB)
Title: Improvements in or relating to electrophotographic recording elements and processes
IPC: G03G5/06
Filed: 1965-06-29
Abstract: 1,115,913. Electrophotography. ING. C. OLIVETTI & C. S.p.A. 29 June, 1965 [1 July, 1964], No. 27418/65. Heading H1K. [Also in Division G2] An electrophotographic element comprises a paper substrate having on one side a photoconductive layer comprising a polymeric binder having dispersed therein a photoconductor and wherein the paper has a resistivity of 10<SP>10</SP> to 5À10<SP>11</SP> ohm. cm. at 15% relative humidity and 70‹ F. The preferred photoconductor is ZnO while the binder may be a hydrocarbon resin, styrene-butadiene copolymer, an acrylic resin or indene-styreneacrylonitrile terpolymer. Plasticizers may be added to the binder to give low conductivity in the coating whilst thioflavine, auramine 0, bromophenol blue and rose bengal may be added as sensitizers.
Patent GB-1001248-A (GB)
Title: A pipe joint and a gasket for use in it
IPC: F16L37/084
Filed: 1964-07-02
Abstract: 1,001,248. Pipe joints; joint-making packings. UNITED STATES PIPE & FOUNDRY CO. July 2, 1964 [July 5, 1963], No. 27445/64. Headings F2B and F2G. In a pipe joint, a socket 2 has an inwardly directed lip 6, and an annular gasket 3 of resilient, deformable material has secured thereto a plurality of more rigid members 14 distributed around it and effective to prevent withdrawal of the pipe 1 from the socket by jamming between the lip 6 and an annular shoulder 15, e.g. a groove as shown or a projecting rib, extending around the pipe. A portion of the gasket is subjected to radial compressive force whereby a seal is formed between the pipe and the socket. The body of the gasket may include a part which is softer and more readily deformable than the remainder of the body, and a groove or a projection for engagement with a rib 9 or a groove formed within the socket. The metal plates may lie in recesses formed in the gasket.
Patent GB-281985-A (GB)
Title: Improvements in casement stays
IPC: E05C17/20
Filed: 1927-10-17
Abstract: 281,985. Parkes, S. R. Oct. 17, 1927. Addition to 247,008. Stays.-The spring 15 surrounding the pivot 2 at the end of the stay-bar 10 according to the parent Specification is housed in a box or housing 17, Means are also provided to give a more positive lock in certain positions of the stay by means of projections engaging recesses. For this purpose balls 21 may be provided to engage with recesses 19, 20 in the parts 16, 9 respectively, or radial corrugations on these parts may be provided.
Patent GB-866143-A (GB)
Title: Improvements relating to ticket marking apparatus.
Inventor: MARK DIXON STANLEY
IPC: G07B11/03
Filed: 1957-09-02
Abstract: 866,143. Ticket-marking apparatus. WESTINGHOUSE GARRARD TICKET MACHINES Ltd., and DIXON, S. M., and DAVIES, J. E. Nov. 28, 1958 [Sept. 2, 1957], No. 27535/57. Class 106 (3). To date a ticket 29, it is placed on a platform 25 which is part of an assembly 12 pivoted at 13 to a stand 11 and normally upwardly urged by a spring 34. The platform is then manually downwardly urged, and as the assembly swings about pivot 13, prepositioned type-wheels 17 are caused by linkage 14, 15, 22, 24 to swing down to contact the ticket 29 through an ink ribbon (not shown) stretched over ribbon plates 30 on either side of the platform 25. The ink ribbon is wound on to and off spools 38 actuated through ratchet wheels 39 mounted on the assembly 12, by one or the other of pawls 40a, 40b mounted on a plate 41 which moves with the type wheels 17. A plate 45 may take two positions in which a roller 44 forces one of the pawls 40a, 40b away from its corresponding ratchet wheel against compression spring 43. The other pawl is then operative. When the assembly 12 is released after the date printing of a ticket, the operative ratchet wheel is turned through one tooth as the type wheel assembly 17 moves to its inoperative position. The plate 45 may be swung to its other position by means of lever 47, thus reversing the direction of travel of the ink ribbon.
Patent GB-446267-A (GB)
Title: Improvements in or relating to machines for making carpets and other tufted or piled products
IPC: D03D39/02
Filed: 1934-09-26
Abstract: 446,267. Making pile carpets &c. SADLER, A., 65, Temple Row, Birming- ham.-(Brinton, C. C. ; Quebec, Canada) Sept. 26, 1934, No. 27564. [Classes 142 (ii) and 142 (iv)] Lengths of tuft yarn i are extracted from carriers at the right, and after being cut off from the supply are transferred into a position at the left for planting or embodiment in a backing, by two sets of grippers a<3>, a4 at opposite sides of a shaft a<2>. This is rotated in steps of 180‹ to bring the two sets successively into tuft extracting and tuft planting positions and is held stationary for a time after each semi-rotation. The grippers comprise fixed jaws a<3> formed on plates fixed side by side on the shaft a<2> and movable jaws a<4> pivoted on spindles a<5> carrying tappets c<1> operated by cams on side members of the frame to open and close the jaws. After these have closed on the yarns, the carrier and cutter assembly b is traversed bodily to withdraw the yarns by means of a cam h and lever h<1>. The yarns are then cut. A modification is described in which the fixed jaws comprise a one piece member, which is slotted to accommodate the moving jaws. According to the Provisional Specification, the tufts are placed in the grooves of a locating plate, are folded and doubled by means of planting needles, and the doubled tufts are inserted in holes &c. in a rubber backing, which may be reinforced by fabric: The backing is fed by let off and take up rollers and is supported underneath, during the tuft planting operation, by a vertically moving perforated gripper-plate.,
Patent GB-212200-A (GB)
Title: Improvements in or relating to cylinders for internal combustion engines
IPC: F02F1/16
Filed: 1923-11-02
Abstract: 212,200. Swan, Hunter & W. Richardson, Ltd., Rowntree, F., and Belyavin, P. Nov. 2, 1923. Cylinders, cooling. -Cooling water is supplied to a jacket D, surrounding a liner A, by fitting a ring E round an annular channel e<7> which distributes the water to longitudinal passages a<3> leading to the jacket. The ring is held by studs e and has water-tight joints e<1>, e<2> and a hole e<6> for the entry of the water; a packing e<3> and a retaining ring e<5> are held by studs e<4>. In a modif,cation, the ring E may have an annular recess communicating with the annulus c<7> or equivalent radial holes. The liner as shown is similar to that described in Specification 190,081.
Patent GB-1122305-A (GB)
Title: Improvements in or relating to means for winding and unwinding textile fabrics
Inventor: HALLIDAY CHARLES
IPC: D06H3/04
Filed: 1965-06-30
Abstract: 1,122,305. Feeding webs. HARRICO (OADBY) Ltd. 29 Sept., 1966 [30 June, 1965], No. 27636/65. Heading B6B. In apparatus wherein a roll of textile fabric rests upon two rollers 10, 11, one or both of which are driven to wind or unwind the web, means are provided to ensure that a roll of fabric is wound up with its end edges in planes perpendicular to the roll axes. These means comprise freely rotatable discs 16 spaced by freely rotatable washers 18 and mounted on posts 15 carried by collars 14 adjustable along a rail 13, the collars 14 being adjusted so that the discs 16 bear against the ends of the roll and are rotated thereby. The arrangement may be embodied in an apparatus, Fig. 3, wherein the fabric passes from one roll 12<SP>1</SP> to another roll 12<SP>11</SP>, or vice versa, over an illuminated inspection panel 21, each roll being mounted and equipped with discs 16 as already described.
Patent GB-860458-A (GB)
Title: Concentration of plutonium
IPC: C01G56/00
Filed: 1945-10-20
Abstract: 860,458. Concentration of plutonium. RITTER, D. M., and BLACK, R. P. S. Oct. 20, 1945 [Sept. 28, 1944], No. 27649/45. Drawings to Specification. Class 39(4). Plutonium is concentrated by a procedure which includes forming an oxalate carrier precipitate containing the plutonium, dissolving the precipitate in an alkaline solution, and adding an oxidising agent to oxidise the carrier but not the plutonium. A solution of neutronirradiated uranium is treated according to the bismuth phosphate precipitation process described in U.S.A. Specification 2,785,951, the precipitate is dissolved in acid, and the solution treated with oxalic acid and optionally potassium chloride. By adding uranous ions, uranous oxalate is precipitated carrying the plutonium and this precipitate is dissolved in alkaline carbonate or oxalate solution, followed by oxidation with hydroxylamine or hydrogen peroxide. The oxidised solution is neutralised with acid and a second uranous oxalate precipitation carried out, this precipitate being dissolved in nitric acid, and the plutonium further concentrated by lanthanum fluoride precipitation. Other oxalate carrier precipitates referred to are thorium oxalate and lanthanum oxalate.