baber/WOPTO huggingface dataset:
Patent GB-1174873-A (GB)
Title: Resin Coatings
IPC: C08G59/12
Filed: 1968-07-23
Abstract: 1,174,873. Modified epoxy resins; coating compositions. MOBIL OIL CORP. 23 July, 1968 [3 Aug., 1967], No. 35089/68. Headings C3B and C3R. An organic solvent soluble resin which is a high M.W. substantially linear polyester containing hydroxyl and epoxy groups. It is prepared by reacting a resinous diepoxide with one or more aromatic carboxylic acids of the type used to prepare linear polyesters from ethylene glycol, e.g. tere- or iso-phthalic acids or benzophenone or benzosulphone dicarboxylic acids. A molar ratio of diepoxide : dicarboxylic acid of 3 : 2 to 6 : 5 is used. Reaction takes place in an organic solvent, e.g. a ketone, at a resin solids concentration of 50% by wt., in the presence of a basic catalyst and at a temp. such as to avoid condensation with the hydroxyl groups present. Reaction is continued until the acid number is <20. The preferred starting material is a diglycidyl ether of bisphenol A having M.W. 350-2000. The dicarboxylic acid may be added in stages with a progressive reduction in the concentration of the reaction soln. The products have low epoxy functionality and do not readily cure with conventional epoxy resin hardeners. However, they readily react on heating with aminoplasts and may be used therewith in curable coating compositions.
Patent GB-351064-A (GB)
Abstract: 351,064. Printing on cheques. NATIONAL CASH REGISTER CO., Dayton, Ohio, U.S.A.- (Assignees of Sburlino, P. ; 452, Forest Avenue, Daybon, Ohio, U.S.A.) March 22, 1930, No. 9205. Convention date, April 30,1929. [Class 100 (iv).] Machines with types detached. -Cash registers and like machines adapted to fill in cheques and the like and comprising means for receiving printing- plates for signatures or other matter, are provided with spring-urged clamping-bars for receiving a printing-plate holder, and are provided also with alock for locking the holder on the machine and preventing unauthorized insertion of the holder. The machine shown in Fig. 1 is of the kind described in Specifications 8119/15, [Class 106 (i), Calculating &c.], and 199,046, [Class 100 (iv), Typewriters &c.), and comprises a group of amount-printing typewheels set by means of the keys 39, and a parallel group of type-wheels for printing the date and consecutive number, the date-wheels being set by means of knobs 30, and the numbering-wheels being set automatically. The numbering-wheels are adjustable manually by means of a cylinder 31 which can be drawn outwards to co-operate with any numbering-wheel. A plate 33, Fig. 4, for printing one or more signatures is mounted in a holder 32 provided with a handle 42, Fig. 2. The holder is inserted in a. bracket 50 secured at the back to the framework 51, and at the front to a plate 53 concealing the printing-mechanism. The bracket is formed at one side with a ledge 54 and is provided at the other side with clamping-bars 56, 57 formed with ledges 55. The clamping-bars are secured to studs 58 .. 61 entering pockets 66 which contain springs 64 abutting on nuts 62. The ledges 54, 55 are bevelled and co-operate with bevels on the holder to force the holder into contact with the bottom of the bracket. The rear corners of the holder are cut away to facilitate insertion. The holder is locked in the machine by means of a lock comprising a barrel 73 provided with a lug 74 which enters a notch 44 in the holder when the key 76 is turned. The lock is so arranged that the key cannot be removed until the lug has been placed in locking position. The lock is employed also to prevent unauthorized insertion of the holder. The cheques 35 in strip form are placed on a table 36 and in contact with a guide 37. When the first cheque is in printing position, the amount is set by means of the keys and hammers are operative to print the date, consecutive number, amount, and signatures. Mechanism is provided for feeding the strip to bring successive cheques into printing position.
Patent GB-1368470-A (GB)
Title: Antiviral compositions containing bisbasic ketones of dibenzofu ran and methods of treating viruses therewith
IPC: C07D307/91
Filed: 1971-09-06
Abstract: 1368470 Bis-basic ketodibenzofurans RICHABDSON-MERRELL Inc 6 Sept 1971 [14 Sept 1970] 35144/73 Divided out of 1368469 Heading C2C [Also in Division A5] Compounds of the formula wherein A is a straight or branched alkylene chain of from 1-6 carbon atoms and each Y is the group wherein n is 4, 5 or 6 and R<SP>3</SP> is H, C 1-4  alkyl, phenyl or benzyl and can be attached to any one of the carbon atoms of the heterocyclic ring and salts thereof are prepared by reacting a suitable bis - (# - haloalkanoyl)dibenzofuran derivative (A) with a compound YH or by reacting a dinitrile of dibenzofuran with a suitable grignard reagent. The starting materials (A) can be prepared by Friedel-Crafts acylation of dibenzofuran and the dinitriles of dibenzofuran may be prepared from the corresponding diamines or dicarboxylic acids by known methods.
Patent GB-485486-A (GB)
Title: Improvements in devices for securing railway rails to sleepers
IPC: E01B9/46
Filed: 1936-12-22
Abstract: 485,486. Securing railway rails. MINOR, F., and ZWEIBAUMER, W. Dec. 22, 1936, No. 35171. [Class 104 (ii)] A chair plate 3 is provided with ribs 2 on each side of the rail having undercut recesses 1 adapted to hold the wide bases 4 of clips 5 which engage the rail flanges 6 through resilient keys 9. The keys are curved on top to fit recesses 8 in the clips and are curved longitudinally so that they engage the rail flanges resiliently at their ends. Their vertical faces engaging the ribs may be roughened at the ends as indicated at 10. In another form, Fig. 4, the upper edge of the key has a series of recesses adapted to be engaged by one arm of an L-shaped locking pin 16, of which the other arm engages a hole in the clip 5. The ribs 2 may be formed by rolling or pressing.
Patent GB-1029451-A (GB)
Title: Hydroxyl-terminated linear polydienes
IPC: C08G18/69
Filed: 1964-08-27
Abstract: Linear hydroxyl-terminated polydrienes are prepared by reacting a linear lithium-terminated polydiene with an olefin oxide in an ether or hydrocarbon-ether mixture.  The reaction can take place in an inert atmosphere.  Polybutandiene, polyisoprene, poly-1,3-pentadiene, polychloroprene, poly - 2,3 - dimethyl - 1,3 - butadiene and a 1,3-diene-styrene copolymer are specified polydienes with polybutadiene preferred. Specified oxides are ethylene oxide, propylene oxide, butylene oxide and styrene oxide. The preferred temperature of reaction is from 10 DEG  to -60 DEG  C.
Patent GB-1526118-A (GB)
Title: Membrane for inverse osmosis and method for its manufacture
IPC: B01D71/30
Filed: 1976-08-24
Abstract: 1526118 Polymer membranes FIAT SpA 24 Aug 1976 [11 Sept 1975] 35206/76 Heading C3V [Also in Division B5] Membranes for inverse osmosis are formed from a linear vinyl chloride/vinyl alcohol copolymer having I-15 mol per cent vinyl alcohol units and an intrinsic viscosity in cyclohexane at 20‹ C. of 0À2-1À2 dl./g. They are prepared by (i) forming a solution of the copolymer in a mixed solvent system comprising both a solvent and a non-solvent for the copolymer, (ii) forming a layer of the solution on a temporary support, e.g. a glass sheet, (iii) partially evaporating the solvent to obtain a gelatinous film on the surface of the layer, (iv) immersing the layer in water to prevent further evaporation and precipitate the copolymer in the form of a membrane, (v) eliminating remaining solvent from the membrane, and (vi) immersing the membrane in water at 40-60‹ C. for at least 5 hours. A typical mixed solvent system is TMF/butyl "cellosolve" (Trade Mark).
Patent GB-308955-A (GB)
Title: Improvements in screw drivers and like hand tools
IPC: B25B23/10
Filed: 1927-12-30
Abstract: 308,955. Bateman, M. L. Dec. 30, 1927. Screwdrivers. - A screwdriver of the kind provided with an attachment for holding the screw in engagement with the blade has a cylindrical nipple or sleeve formed at its forward end with a seating for receiving the head of the screw which is gripped between the seating and the edge of the tool blade by the action of a compression spring housed within the sleeve. The sleeve d is guided on the tool stem a by the engagement of a rib e on the sleeve with a groove in a collar c sweated to the stem and is provided at its forward end with a cap f formed with a conical seating l for the head of the screw and with an open-ended slot g to admit the head of the screw sideways. The compression spring j is retained in position by a cap h screwed on the end of the sleeve d. The outer end of the casing may be shod with rubber or other material to avoid damage to surfaces against which the tool is applied.
Patent GB-342809-A (GB)
Title: Improvements in or relating to the manufacture of decorative glass
IPC: C03C17/00
Filed: 1929-11-19
Abstract: 342,809. Ornamental glass plates; mosaics. GLASSCRAFT CO., Ltd., 21, Farringdon Avenue, London, and FOWLER, A. G., Northside, Gidea Close, Gidea Park, Essex. Nov. 19, 1929, No. 35383. [Classes 20 (iii) and 20 (iv).] Decorative glass objects, such as illuminated signs, mirrors, panels, and windows, comprise a base member A, contouring elements B secured in position on the base member and defining a selected design, and an opaque covering member C provided with a transparent portion which confines the exact contour of the design on the base member to be exhibited. The base A, which may be of glass, may be contoured by wire or tubular glass elements B, and then filled in with a decorative medium such as beads or granulated glass. A consolidating medium such as gelatine or cellulose is applied to the decorative medium and the whole is then dried in a lowtemperature oven. The covering member C may be a silvered glass plate prepared either by cutting away the silvering so as to correspond with the design it is intended to depict, or silvered only on those parts of the plate which do not form part of the design. The two plates A, C are secured together by a fixative such as putty, cement, or Canada balsam. The design will be visible either by reflected or transmitted light.
Patent GB-778040-A (GB)
Title: Improvements in or relating to explosion-proof enclosures
IPC: E04B1/98
Filed: 1955-12-09
Abstract: 778,040. Explosion-proof enclosures. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Dec. 9, 1955 [Dec. 20, 1954], No. 35404/55. Class 47. An explosion proof enclosure for housing electrical control equipment is provided with flame arresting ventilators for relieving excessive pressure, consisting of a rigid porous sintered metal filter plate 16, Fig. 2, secured by a lowered clamping plate 17 over an opening 20 in one side wall of the enclosure, and of woven metal gaskets 18, 27, provided respectively, between the enclosure and the filter plate 16 and between the enclosure and a removal cover 13, Fig. 1, for an opening 11 in the enclosure. The filter plate may be formed of bronze or a mixture of copper and tin particles. The gaskets may be made of stainless steel, bronze, copper or other corrosion resistant metal such as a high nickel copper alloy.
Patent GB-1418855-A (GB)
Title: Cyclic sulphoximide derivatives
IPC: C07D275/06
Filed: 1974-08-12
Abstract: 1418855 Sulphoximides WARNER-LAMBERT CO 12 Aug 1974 [11 Aug 1973] 35412/74 Heading C2C Novel cyclic sulphoximide derivatives of the formula wherein R 1  is (C 1 -C 6 ) alkyl or phenyl and R 2  is phenoxy, (C 1 -C 6 ) alkoxy or (C 1 -C 6 ) alkyl or a phenyl radical optionally substituted by halogen, hydroxy or (C 1 -C 6 ) alkoxy, are prepared by reacting a 3H-imino-1,2-benzisothiazole-1-oxide of the formula with a reactive derivative of an acid of the formula: R 2 ÀCOOH. The derivative is suitably an acid halide or acid anhydride and the reaction is suitably carried out in the presence of a tertiary amine as acid acceptor, in an inert solvent at a temperature of from 0‹ to 100‹ C. The novel compounds of the invention possess pharmaceutical activity.
Patent GB-301517-A (GB)
Title: Improvements in or relating to percussion fuses for bombs or similar projectiles
IPC: F42C1/06
Filed: 1928-12-01
Abstract: 301,517. Galassini, E. Dec. 2, 1927, [Convention date]. Projectiles; fuzes. -A grenade capable of being thrown by hand or from a gun or otherwise is fitted with a percussion fuze g, which can be transported and stored separately and contains two discs h, i held apart by a spring k. The disc h has a central boss h<1> carrying a percussion cap; and the other disc i carries a firing pin x and has a central boss i<1> surrounding the other boss h<1>. A safety fork l is interposed between the discs and is attached to a tape n, which is wound round the body of the fuze. The end of the tape is secured to a metal piece o, which is fastened to the fuze by a pin. This pin is pulled out before the grenade is thrown, and when the grenade is thrown the tape unwinds and pulls the fork l out. On impact, the discs h, i approach each other either by movement along the axis of the grenade or by a tilting movement about their edges, according to the direction of impact; the firing pin in any event strikes the percussion cap and the grenade is exploded. The discs may be made from a paste of powdered lead. The casing a of the grenade is made of stamped sheet metal, and has a tapered rear end. The Specification as open to inspection under Sect. 91 (3) (a) also describes a grooved sleeve inserted in or over the casing a and intended to break up into fragments when the explosion occurs. This subject-matter does not appear in the Specification as accepted.
Patent GB-1138769-A (GB)
Title: Improvements in or relating to irradiation machines
Inventor: MCCANN JOHN DAVID
IPC: G21K1/093
Filed: 1966-08-08
Abstract: 1,138,769. Electron beam irradiation apparatus. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 6 Sept., 1967 [8 Aug., 1966], No. 35474/66. Heading H1D. In an electron beam irradiation apparatus an elongated electron emitter 1 is supported, when carrying its operating current, by the upward force in a transverse magnetic field produced by the electromagnet 10 or, alternatively, by a permanent magnet. The coils 8, 9 of the electromagnet 10 are in series with the emitter 1 which is held taut by a spring 4. Insulator members 11 support the emitter when the current is insufficient to provide lift. With an alternating magnetic field the electrons are scanned slightly along the axis of the emitter and the shadow effect of the insulator members is eliminated. Several electromagnets arranged in a curve may be used. The emitter then follows this curve and may be used to irradiate an irregularly shaped object.
Patent GB-526233-A (GB)
Title: Electron tube
IPC: H01J21/14
Filed: 1938-12-06
Abstract: 526,233. Thermionic valves. VEREINIGTE GLœHLAMPEN UND ELEKTRIZIT€TS AKT.- GES. Dec. 6, 1938, Nos. 35521 and 35522. Convention dates, Dec. 6, 1937 and June 10, 1938. [Class 39 (i)] In double-control thermionic valves such as mixer tubes in superheterodyne receivers, the two successive controls operate respectively by space-charge and by defection of the electrons without reversing their direction of flow. The deflection is by two or more radially arranged plates 4, at positive potential separated from the cathode 1 by an accelerating grid 3 and first control grid 2 and varies the distribution of electrons between anode parts 7, 5. A screen grid 7, suppressor grid 8, screens 9 and focusing bars 11 may be provided. The valve may operate with push-pull input and output and may include oscillation electrodes cooperating with the same cathode 1. The plates 4 may receive the local oscillations and the grid 2 the incoming signals. The parts may be so proportioned that the slope of the curve of the anode current plotted against the potential on the first grid is nearly a linear function' of the potential on the deflector plates.
Patent GB-426147-A (GB)
Title: Improvements in or relating to metal clad electric arc converters
IPC: H01J13/22
Filed: 1933-12-18
Abstract: 426,147. Arc converters. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and GALLIZIA, E., c /o General Electric Co., Witton, Birmingham. Dec. 18, 1933, No. 35610. [Class 39 (i)] A metal-clad arc converter has a liquidcathode container insulated from the main chamber by a seal of the kind comprising adjacent metallic surfaces separated by fused vitreous material, such as glass or glass - enamel, uniting the said surfaces, one of which is a surface of the container. A cathode container 1 is provided with a connecting pin 3 and a conical flange 12 which is sealed through conical rings 6 and layers 7 of vitreous material to a flange 8 formed on the main container or on a member welded, bolted or soldered thereto. In another form the metallic surfaces consist of rings axially arranged. When the materials forming the flanges 8, 12 have differing coefficients of expansion, the metallic surfaces and the vitreous layers are suitably graded.
Patent GB-1526761-A (GB)
Title: Handling liquid samples
IPC: G01N21/74
Filed: 1975-08-29
Abstract: 1526761 Pipette PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 29 Aug 1975 [2 Sept 1974] 35734/75 Heading B1X [Also in Division G1] A method of automatically transferring and injecting a liquid sample by means of an injection syringe provided with an injection needle whose inner wall surface is formed by a non-metallic substance and a plunger arranged in said syringe so that fluid in said injection needle can be displaced by actuation of said plunger includes, after the usual step of injecting a liquid sample by the action of the plunger, the further steps of introducing a gas under pressure into the syringe behind the liquid sample so as to complete the operation of injecting the liquid sample, said gas being chemically inert with respect to said liquid sample. The needle may be of PTFE which may be reinforced by metal. A plunger 11 operating in a cylinder 12 draws liquid into the needle 1 and expels it therefrom. Gas is admitted through valve 6 to expel the last drop of liquid and may also be admitted prior to filling the needle in order to agitate the liquid in its original container and ensure a homogeneous sample.
Patent GB-479706-A (GB)
Title: Improvements in or relating to centrifuging machines and more particularly for the treatment of tobacco
IPC: A24B15/00
Filed: 1936-12-30
Abstract: 479,706. Centrifugal machines. NISZCZYNSKI, M., and PEREPLOTCZIKOW, M. Dec. 30, 1936, No. 35762. [Class 23] A centrifuge, particularly for the treatment of tobacco, has two concentric cylindrical perforated walls 3, 4 on a common base 12, enclosed in a closed jacket 1 with a lid 2. The conduit 6, which supplies compressed air, terminates in a cylinder 25 which is associated with another cylinder 26 at the end of the conduit 27 to form a hinge and valve. The other end of the conduit 27 terminates in a chamber 9 carried by the lid 2. By means of partitions 16 the chamber 9 is divided into a number of conduits controlled by valves 17 so that the compressed air can be distributed as desired over the tobacco placed in the space between the perforated walls 3, 4. Pipes 7, 8 are provided for the supply of steam and liquid respectively, and have hinge joints similar to the cylinders 25, 26. A suction pipe 18 finished with a valve 19 is attached to the casing outlet 20 and a baffle 21 is secured in front of the outlet. The lid 2 carries a manometer and a thermometer.
Patent GB-1434903-A (GB)
Title: Lawn mowers
IPC: A01D34/02
Filed: 1972-08-01
Abstract: 1434903 Lawn mower QUALCAST (LAWNMOWERS) Ltd 3 Aug 1973 [1 Aug 1972] 35852/72 Heading A1F A lawn mower consists of a frame 10, a rear roller 11, front wheels or roller 12, serrated cutting blades 16 and 17 in mutual contact and of which blade 17 is fixed to frame 10 while blade 16 is constrained by guide slots 19 in blade 16 and pins 18 integral with blade 17 to oscillate laterally across blade 17. A motor 13 drives, via a toothed belt 21, a cam faced wheel 20 which engages between two vertical pins 25 integral with the blade 16 causing, when driven, the lateral oscillations of blade 16. The wheel 20 is splined to shaft 30 mounted in suitable bearings (not shown) as are brushes 31 which sweep debris from the top of, blade 16 along a deflector plate 15 and into a forward mounted box (not shown). The motor 13 may additionally drive the rear roller or may be omitted altogether in which case the belt drive for wheel 20 is taken directly from the rear roller 11.
Patent GB-497116-A (GB)
Title: Improvements in television receivers
IPC: H04N5/08
Filed: 1937-12-28
Abstract: 497,116. Television. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Dec. 28, 1937, No. 35941. Convention date, Dec. 30, 1936. [Class 40 (iii)] The amplification of an additional high or intermediate-frequency amplifier 2, the rectified output of which controls the scanning, is so regulated by the instantaneous value of the modulation that, during the picture signals, the amplification decreases with increasing amplitude of the signals and, during the oppositely modulated synchronizing signals, the amplification is equal to that of the immodulated carrier, Fig. 6 (not shown). The synchronizing signals decrease the amplitude of the carrier. The rectified output voltage is supplied to the controlling-grid of the valve 2, the normal bias of which is so adjusted that, at the minimum instantaneous value of the picture signals, the valve operates at a point of its characteristic between a substantially straight portion and a highly curved portion, Fig. 3 (not shown). This additional varying bias is supplied through a filter 16, which removes high or intermediate frequencies. According to a modification, the varying bias is obtained from an additional rectifier with a delay voltage equal to the amplitude of the unmodulated carrier, Figs. 4 and 5 (not shown). Reference has been directed by the Comptroller to Specification 451,042.
Patent GB-1015930-A (GB)
Title: Process for vinylating acid amides
IPC: C07D207/26
Filed: 1962-09-21
Abstract: N-Vinyl carboxylic acid amides and lactams are made by heating an amide or lactam of the formula R-CO-NH-R1, wherein R and R1 are hydrocarbon radicals, optionally substituted by chlorine or fluorine and which may be joined to form a lactam ring, and R may be hydrogen, in the gas phase with acetylene at 200-500 DEG  C. in the presence of a catalyst which is an alkali metal metallate or a mixture of alkali metal oxides and amphoteric metal oxides.  The reactants may be mixed with an inert gas or vapour.  Numerous amides and lactams are specified.  Suitable catalysts (see Divisions B1 and C1), which may be supported on a carrier, are the alkali metal stannates, zincates, aluminates, beryllates, vanadates, antimonates, titanates, zirconates, molybdates, tungstates and manganites or mixtures of alkali metal oxides and oxides of cadmium, lanthanum, mercury, magnesium, iron and bismuth.  Examples relate to N-vinyl-pyrrolidone, N-vinyl-piperidone and N-vinyl-N-methyl acetamide.ALSO:Potassium aluminate is made by heating together potassium hydroxide and aluminium hydroxide at temperatures above 250 DEG  C. Sodium zincate is prepared by heating an ammine complex compound Na2[Zn(NH3)6] [OH]4 at 300 DEG  C.ALSO:Catalyst for the N-vinylation of amides comprise mixtures, preferably equimolar mixtures, of alkali metal oxides and amphoteric metal oxides, e.g. oxides of cadmium, lanthanum, mercury, magnesium, iron and bismuth.  The oxides may be supported on carriers, e.g. active carbon, pumice powder, silica gel, bleaching earths, clays, alumina, rutile and zirconium oxide.