baber/WOPTO huggingface dataset:
Patent GB-848484-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F01M1/22
Filed: 1957-10-21
Abstract: 848,484. Starting. MOTORENWERK CUNEWALDE VEB. Oct. 21, 1957, No. 32847/57. Class 7(5). [Also in Group XXVI] A decompression device for a four-stroke internal combustion engine which operates automatically to prevent compression in the event of the faulty circulation of the-engine lubricating oil comprise inlet and exhaust valve cams 5, 7, a starting cam 6, a common rockershaft 2 having a spring 4 for urging it to a position to co-operate with the starting and exhaust cams 6, 7 on the cam-shaft 1, and control means 11 sensitive to engine oil pressure for moving the rocker-shaft against the spring 4, the control means being such that whilst the engine is running the rocker-shaft is maintained by oil pressure in its operative position relative to the inlet and exhaust valve cams 5, 7, but in the event of a drop in pressure the spring 4 moves the shaft 2 to the right so that the exhaust valve is held off its seat to stop the engine by a collar 17 on its push-rod 16 engaging with a stop 13 which is brought into operative position by a lever 8, 8a and plunger 12. Fig. 1 shows the system in readiness for starting with the stop 13 engaging the collar 17 and, at its lower end, in contact with a plunger 11 on which the oil pressure operates to retain the decompression device in the disengaged position as shown in Fig. 3. The lever 8 is mounted on a spindle 9, Fig. 6 slidable on an axis at right angles to the rockershaft 2; when in the starting position the lower end 8b of the lever 8 bears on a collar 14 at the base of a cone 15 formed at the right hand end of the rocker shaft, the inlet valve push-rod 18 then being operated by the starting valve cam 6. After starting, the spindle 9 is moved axially by a handle 19, Fig. 6, to bring the arm 8b of the lever 8 into contact with the apex of the cone 15 to retain the rocker-shaft 2 in its normal running position by the oil pressure acting in opposition to the spring 4.
Patent GB-869228-A (GB)
Title: Ferrous citrate complex
IPC: C07C51/265
Filed: 1957-10-23
Abstract: The invention comprises triferrous dicitrate decahydrate, and the preparation thereof either by heating metallic iron in an inert atmosphere with a solution of citric acid in the stoichiometric quantity required to form the triferrous dicitrate decahydrate or by adding powdered iron to an aqueous suspension of ferrous hydrogen citrate in a molar ratio of 1:2 and heating in an inert atmosphere; together with pharmaceutical preparations containing the triferrous dicitrate decahydrate (see Group VI).ALSO:Pharmaceutical preparations for oral administration comprise triferrous dicitrate decahydrate, with or without tricalcium dicitrate, and an inert and chemically compatible pharmaceutical carrier.  Specific examples relate to tablets which also contain the usual binders and lubricants.
Patent GB-417087-A (GB)
Title: Improvements in the manufacture and production of condensation products
IPC: C07C65/40
Filed: 1933-11-27
Abstract: 3-Hydroxy naphthalic anhydride is condensed with phthalic acid or a halogenated phthalic acid or anhydride or chloride of such acid in presence of an acid condensing agent to give 4,5-phthaloyl-3-oxynaphthalic acid derivatives.  The acid condensing agent is preferably of the Friedel-Crafts' type. Reaction may be carried out in the presence or absence of solvents and at temperatures preferably between 220--260 DEG  C.; by reacting for a short time below 200 DEG  C. products of the nature of a -naphthoylbenzoic acids may be obtained which further condense to the above phthaloyl derivatives on more energetic treatment. The resulting products may be further treated with alkaline oxidizing agents or with further acid condensing agents such as sulphuric acid to give benzanthrone and benzanthraquinone carboxylic acid derivatives.  In examples: (1) phthalic anhydride and 3-oxynaphthalic anhydride are condensed together in presence of aluminium chloride to give 4,5-phthaloyl-3-oxynaphthalic anhydride; on treating this with alkaline permanganate b z3-oxybenzanthrone-2.b z1-dicarboxylic acid acid is obtained, while treatment with strong sulphuric acid yields b z2-oxy-1,2-benzanthraquinone-3-b z4-dicarboxylic acid; (2) 4-chlorphthalic anhydride is condensed with 3-oxynaphthalic anhydride in presence of aluminium chloride to give a chloro - 4.5 - phthaloyl - 3 - oxynaphthalic anhydride; treatment of this with alkaline ferricyanide yields a chloro-b z3-oxybenzanthrone-2-b z1-dicarboxylic acid. Specifications 288,985 and 304,263, [both in Class 2 (iii)], are referred to.  The Specification as open to public inspection under Sect. 91 comprises the condensation of 3-oxynaphthalic anhydride with an aromatic o-dicarboxylic acid which may be substituted in the aromatic nucleus by halogen and/or alkyl groups or an anhydride or chloride of such acid in the presence of a condensing agent.  The use of naphthalene-2,3-dicarboxylic acid as a reaction component and of boron fluoride, ferric chloride, zinc chloride and sulphuric-boric acid mixture as condensing agents is referred to and three additional examples illustrating the condensation of phthalic anhydride with 3-oxynaphthalic anhydride are given.  This subject-matter does not appear in the Specification as accepted.
Patent GB-202571-A (GB)
Title: An improved adjustable handle for baby carriages, invalid carriages, invalid chairs and the like
IPC: B62B9/20
Filed: 1922-12-07
Abstract: 202,571. Foreman, P. W., and Field, E. D. Dec. 7, 1922. No Patent granted (Sealing fee not paid). Push - bars. - The handle of a baby carriage, invalid chair, &c. comprises upper and lower portions a, g which telescope into, and are adjustably secured in sleeves b connected to the body f so as to provide for varying depth of body and to adjust the height of the handle bar from the ground. The portions a, g may be secured within the sleeves by clips c, and the sleeves may be connected to the body by resilient devices or straps e or by rigid brackets. The lower portion g may be clipped to an axle as at h or may be secured to the body. According to the Provisional Specification, the lower end of the sleeves may be rigidly fixed by welding &c. to the portions g.
Patent GB-788884-A (GB)
Title: Method of making catalyst
IPC: C10G11/04
Filed: 1955-11-22
Abstract: Silica-alumina catalysts containing 20 to 40 per cent of alumina are made by preparing a silica hydrosol having a pH of about 4 to 5 (e.g. by adding mineral acid to sodium silicate solution), effecting a partial gelation of the sol by adding an acid solution of an aluminium salt; after standing a short time when the gel "sets," adding a limited quantity of ammonia or other alkali required to bring the mixture to a pH of 4 to 5, and allowing the mixture to age for 15 to 60 minutes before adding further ammonia to raise the pH value to about 6.5 to 7.5.  The mixture is then de-watered, and the product dried and pilled.  The aging period at pH 4 to 5 permits some combination between silica and the slowly precipitated alumina.  The catalyst may be used for cracking hydrocarbons; it is resistant to the de-activating action of steam, and forms less carbon and gas. Aluminium salts specified are, alum, aluminium nitrate or chloride. In a preferred method, the mixing and settling steps are effected by mixing nozzles mounted in tanks provided with paddles, and a temperature of about 85 DEG  to 120 DEG  F. is maintained in all stages. The silica hydrosol may be made by treating the sodium silicate solution with a cation exchange resin.  Specification 755,068 is referred to.
Patent GB-604974-A (GB)
Title: Improvements in or relating to implements for cutting plants
IPC: A01D45/26
Filed: 1945-12-11
Abstract: 604.974. Cutting plants. CRAWFORD, A., CRAWFORD, J. C., and BARSBY, R. Dec. 11, 1945, No. 33439. [Class 6(iii)] An implement for cutting plants of the kind having a fixed bladed cutter portion adapted to be drawn over the ground has the cutter portion carried by a head component or member 4 having a rear extension disposed in the line of draft of the implement, said extension terminating at or near the trailing end of the cutter portion and being furnished with an element or elements adapted for contact with the ground in order to hold cutter portion to a straight course. In the construction shown, a pair of cutter blades 1 are hingedly attached to a member 4, said member having a rearwardly extending structure 8 furnished with a runner 9 to prevent sideways slipping. The cutter blades may be folded for transport by a pin and slot arrangement in the member 4. The cutting height is varied by using runners of different draft and, at the front, adjusting a skid on a rod mounted in the member 4. To support the cutter when sharpening its blades a' pair of collapsable supports 23, 24 are provided at the rear of the structure 8. A superstructure 27 associated with the member 4 carries connecting means 29 for attachment to the drawbar 35 on the tractor whereby the cutter portion can move vertically to adapt itself to the contour of the ground. Specification 505,614 is referred to.
Patent GB-466756-A (GB)
Title: Improvements in or relating to television receivers
IPC: H04N5/46
Filed: 1935-12-03
Abstract: 466,756. Television receivers. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and LINSELL, A. A. Dec. 3, 1935, No. 33484. [Class 40 (iii)] The frequency of the scanning-lines in the received signal automatically selects the appropriate set of predetermined adjustments which include adjustments of the scanning-line frequency and of the size of the scanning-spot in the receiver. Resonant circuits 16, 17, each of which responds to a different scanning-line frequency, feed rectifiers 20, 21, the outputs of which energize a differential relay R to select the appropriate set of adjustments. Alternatively, the selection is effected by a thermionic valve with its grid differentially biassed by the output circuits, Figs. 3 and 4 (not shown). The proper size of the scanning-spot is selected by giving the correct potentials to two auxiliary anodes in the cathode-ray tube, Fig. 1 (not shown). The deflecting-frequency is selected by an adjustment of a resistance associated with a condenser in an oscillator.
Patent GB-1137465-A (GB)
Title: Process for preparing new foams based on polyesters
IPC: C08L67/06
Filed: 1967-07-20
Abstract: 1,137,465. Polyester-polyurethane foams. FIRMA NOEL MARQUET & CIE S.A. 20 July, 1967 [29 July, 1966], No. 33524/67. Headings C3C, C3P and C3R. Foams are prepared by making a mixture of a polyhydroxy compound, excess polyisocyanates, water and catalyst, and when it has started to react, working it into a second mixture of an unsaturated polyester, a copolymerizable monomer, catalyst and optionally an accelerator. Mixtures of any of the above components may be used. A finely divided filler is preferably incorporated in the second mixture. The polyhydroxy compound may be any conventional substance, e.g. a triol, a polyether or polyester. Any unsaturated polyester soluble in vinyl monomers may be used, particularly those having acid numbers of 15 to 34, hydroxy numbers of 25 to 60 and molecular weights of 2000 to 5000. Catalysts in the first mixture comprise, for example, tertiary amines, and in the second mixture peroxide compounds. Specified accelerators are cobalt salts, optionally with amines. An additional foaming agent, e.g. a low-boiling solvent, may be added to the premix. Specified fillers are titanium dioxide, glass-fibres (which may be siliconecoated), dry earths, sand, cellulose derivatives, tannery wastes, organic fibre scrap, asbestos cement, powdered glass, silicates, aluminates, aluminium, wood, water-glass, and particularly materials which set with water, e.g. plaster of Paris, cements, calcium sulphate, iron oxide and lime. The particle size of these fillers is discussed.
Patent GB-1432407-A (GB)
Title: Process for purifying crude diamin-maleonitrile
IPC: C07D/
Filed: 1973-07-13
Abstract: 1432407 Purification of diaminomaleonitrile KYOWA GAS CHEMICAL INDUSTRY CO Ltd 13 July 1973 [13 July 1972 (2) 14 July 1972] 33544/73 Heading C2C Diaminomaleonitrile is purified by extracting crude diaminomaleonitrile with a mixture of an extraction solvent A which is a ketone, alcohol, nitrile, ether or ester of acetic acid and a solvent B which is a hydrocarbon or halogenated hydrocarbon, and separating the diaminomaleonitrile from the extract. The crude material to be purified may be obtained by (1) tetramerization of hydrocyanic acid, or (2) reaction of hydrocyanic acid with cyanogen.
Patent GB-1460984-A (GB)
Title: Glass for multifocal spectacle glasses
IPC: C03C3/066
Filed: 1974-07-30
Abstract: 1460984 Optical glass CARL-ZEISSSTIFTUNG [trading as JENAER GLASWERK SCHOTT & GEN] 30 July 1974 [20 Aug 1973] 33633/74 Heading C1M A glass suitable for use as a remote portion lens in a multifocal glass system, and which may be phototropic, comprises, in percent by weight the balance, if any, consisting of one or more compatible constituents, the halogen and refining agent content, if any, being considered as additional to the 100% total of the other constituents, and the weight ratio SiO 2  : B 2 O 3  being 0À64-0À8 : 1. In making a phototropic glass, a batch comprising silver and halogen components is, after melt fusion, heat-treated at 550-675‹ C. for a time sufficient to develop silver halide discontinuities. Such a glass, which may have a refractive index n D  of 1À52- 1-535 and a thermal expansion coefficient of 49- 55 x 10<SP>-7</SP>/deg. C., may be heat-fused to a near portion glass in making a multifocal lens, the near portion glass being of similar expansion coefficient and refractive index at least 1À60. Examples of near portion glasses are given. The glass of the invention may be strengthened by treatment with molten NaNO 3  for 16 hours at 465‹ C.
Patent GB-1430757-A (GB)
Title: Fence
IPC: E04H17/16
Filed: 1972-07-19
Abstract: 1430757 Wire strainers M GOODALL 16 July 1973 [19 July 1972 25 Oct 1972] 33722/72 and 49100/72 Heading F2G [Also in Division E1] The wire mesh 11 of a fence (see Division E1) is placed under tension by pulling a connecting arm 23 having attached to one end an L-shaped bracket 32a, the shorter flange of which engages a vertical wire of the mesh. The longer flange of the L-shaped bracket is suitably provided with a pair of abutments which are respectively adapted to engage or be disposed closely adjacent to a pair of horizontally extending fence wires either on the lower surface of the upper wire and the upper surface of the lower wire or on the upper surface of the upper wire and the lower surface of the lower wire. The connecting arm 23 is suitably pulled by means of a lever 28 connected to the arm by a chain 30. When the desired tension has been applied the connecting arm is pivotally connected to the bracket 12 mounted on post 10 by means of a bolt passing through a hole 24.
Patent GB-802732-A (GB)
Title: Improvements in or relating to rope guides for mine hoist installations
IPC: B66B15/02
Filed: 1954-11-23
Abstract: 802,732. Fairleads. GUTEHOFFNUNGSHUTTE STERKRADE A.G. Nov. 23, 1954 [Dec. 5, 1953], No. 33926/54. Class 78 (5). A fairlead which guides the hoisting rope of a winding pulley arranged in a tower and which is positioned underneath said pulley, is provided with rollers 5 journalled in side-plates 6, 7, the rollers forming a curved guide-path for the rope.
Patent GB-414096-A (GB)
Title: Improvements in visible warning signals
IPC: B62J6/04
Filed: 1932-11-30
Abstract: 414,096. Vehicle - lamp mountings. CRAWFORD, A. E. B., 44, Onslow Square, Kensington, London. Nov. 30, 1932, No. 33938. [Class 75 (iii).] An electric lamp 31, provided with a coloured bulb, is rotatably mounted on the vehicle so as to change the direction of the beam of light, and is driven from a road wheel of the vehicle As shown a bracket 15 secured to the rear fork 17 of a bicycle supports a tube 21 through which passes a flexible shaft 25 to one end of which is secured a friction wheel 23 driven from the bicycle wheel 19. At its other end the shaft 25 carries the lamp 31 having its optical axis inclined to the axis of the shaft. The wheel 23 is held in engagement with the wheel 19 by a spring 33 and the tube 21 is curved so that by rotating it the drive can be disconnected.
Patent GB-1298222-A (GB)
Title: An automatic liquid aninal feeder
Inventor: ALDOUS MAURICE WILLIAM
IPC: A01K5/02
Filed: 1969-11-05
Abstract: 1298222 Animal feeding appliances M W ALDOUS and J C HITCHCOCK 5 Nov 1969 33966/72 Divided out of 1298221 Addition to 1283351 Heading AIM [Also in Division B1] The subject matter of this Specification is substantially the same as that described in Specification 1298221, but the claims are concerned with an automatic liquid animal feeder of the type described in which the level sensor is connected to control the delivery of liquid and solid materials into the mixing chamber, and also to exercise a controlling function in the distribution of a desired amount of mixed foodstuff to the feeding points.
Patent GB-1261709-A (GB)
Title: Two stage hammer mill
Inventor: PALYI LESLIE
IPC: B02C13/08
Filed: 1968-07-17
Abstract: 1,261,709. Hammer mills. N. PORA. 15 July, 1969 [17 July, 1968], No. 34052/68. Heading B2A. A two-stage hammer mill comprises a shaft 12, Fig. 1, bearing a first stage rotor 20 having blades 23, 24 and a second stage rotor bearing blades 34, 35, a blower fan with blades 33 mounted on the second stage rotor and a partition 14 between the output of the first stage and the input of the second. The hammer blades, Fig. 4, are alternately long and short with toothed ends and are surrounded by screens 27, 37. The air intake is controlled by a damper 17. A second embodiment for grinding a heavier product employs a dished partition (41) Fig. 5, not shown, an additional air inlet (43), and a further embodiment for even heavier product has a modified screen 27, Fig. 6, and partitions 50, 53 completely enclosing the first and second stages respectively as well as a secondary air intake 52 and bottom outlet 18.
Patent GB-367017-A (GB)
Title: Improvements in purses
IPC: A45C1/04
Filed: 1930-11-13
Abstract: 367,017. Coin purses o r cases. APPLEFORD, C., 385, Moreland Road West, Coburg, Victoria, Australia. Nov. 13, 1930, No. 34221. [Class 18.] A coin purse or case comprises a body 8 to which is pivoted a tiltable cover 9 having a coin receptacle in its underside, the opening of the cover causing a part thereof to descend into the body and a part to rise therefrom and expose the coins in the raised position ; the cover may carry pockets 9d for the coins and may have a hinged panel 9a which, when the cover is open, may be moved back to facilitate access to the coins. The pockets 9d are graduated in size and are of less depth than the diameter of the contained coins while the bases of the pockets are stepped so that the smaller coins are elevated relatively to the larger ones ; spring tongues may be provided in the pockets to hold the coins securely. Tickets &c. may be held in the space 8a beneath the pockets and a chamber 11 hinged to the bottom of the body 8 carries a mirror, matches, &c. Eyes or loops 14a are provided for a wrist strap and one or more bails or clips 13 may be provided for holding tickets. The cover is pivoted in the body by a springy axle 10 and has a handle 8b to facilitate opening.
Patent GB-917279-A (GB)
Title: Improvements in and relating to electric arc welding
Inventor: GIBSON LESLIE
IPC: B23K9/16
Filed: 1959-10-09
Abstract: 917,279. Welding by fusion. IMPERIAL CHEMICAL INDUSTRIES Ltd. Oct. 5, 1960 [Oct. 9, 1959], No. 34257/59. Class 83 (4). In inert gas shielded arc welding, the electrode 9 projects through the wall of a transparent shield 7 shaped to co-operate closely with tho work 2 or a support 4 for the work 2, inert gas, e.g. argon, being introduced into the shield 7 and escaping between the shield 7 and the work 2 or the support 4. The shield is clamped by a nut 8 on to a welding head 5 having a tungsten electrode 9. A filler rod or wire can be introduced through an aperture 13. The work in the form of a titanium flange 2 and tube 1 is supported by a copper chill 4.
Patent GB-926095-A (GB)
Title: Improvements relating to collapsible washing hangers and the like
IPC: E04H12/22
Filed: 1961-09-25
Abstract: 926,095. Ground anchors. PATENT-UND VERWALTUNGS-A.G. Sept. 25, 1961 [Sept. 30, 1960], No. 34270/61. Class 45. A collapsible device for hanging out washing and like uses includes a supporting pole and a ground socket which comprises one part 1 for anchoring in the ground and a second part 2 which is axially adjustable in relation to the first. As shown, the part 1 is embedded in a concrete plinth S and is connected to the part 2 which carries a closure lid 5 by means of screwthreads 3. The two parts may be connected by means of a bayonet joint and the first part may be formed by the concrete plinth. The two parts are preferably of thermoplastic material.
Patent GB-1349889-A (GB)
Title: Apparatus for reducing the size of particles
IPC: B01F27/75
Filed: 1971-07-21
Abstract: 1349889 Comminuting apparatus; roller-andring mills B W BRISTOL 21 July 1971 [29 July 1970] 34314/71 Heading B2A A comminuting apparatus, particularly for grinding and dispersing pigments and inks comprises a casing 20, Fig. 2, having an inlet 32 and outlet 18, a cooling jacket 48, and a body, viz a shaft 24 mounted within and spaced from the inner wall of the casing so that a channel is defined between them. Grinding means in the form of rollers are disposed and restrained in the channel. Feed is assisted by a pump 30 driven by a motor (38), Fig. 1, not shown. A second motor (40), Fig. 1, riot shown, drives the shaft 24 via a belt 46. The rollers may be arranged in axially disposed groups separated by collars 64 which may include undercut portions, secured to the shaft 24. Large and small rollers 60, 62, Fig. 3, or equal-sized rollers 74, 76, Fig. 5, may be arranged around the shaft. The small rollers 62 are larger than the rollers 60 and are received in the undercut portions. Alternatively, the shaft may be grooved 82, Fig. 4, to receive rollers 84. The shaft itself may include a coolant fluid conduit along its central axis.
Patent GB-1281201-A (GB)
Title: 2-iminobenzodiazepine derivatives
IPC: A61K31/55
Filed: 1969-07-08
Abstract: 1281201 Benzodiazepines TAKEDA YAKUHIN KOGYO KK 8 July 1969 [8 July 1968; 12 July 1968 (2) 21 June 1969] 34383/69 Heading C2C Compounds of the general formula (R 1 =H, alkyl, cycloalkyl ; rings A, B may have one or more substituents selected from halogen, NO 2 , CF 3 , alkyl, alkoxy) and their acid addition salts are prepared by ring-closing a compound of the formula optionally followed by salt formation. The starting materials are prepared by reacting the corresponding benzophenone with R 2 NH 2  (R 2  = H, alkyl, cycloalkyl, hydroxyalkyl, aralkyl), and reacting the resulting imine with aminoacetonitrile. The above compounds are tranquilizers, muscle relaxants and anticonvulsants, and may be administered in the form of pharmaceutical preparations containing them in association with a carrier.
Patent GB-183148-A (GB)
Title: Improvements in electrical heating elements
IPC: H05B3/00
Filed: 1921-06-06
Abstract: 183,148. Hearn, R. K. June 1, 1921. Heating by electricity; resistance furnaces and: ovens.-Longitudinal china-ware slips h are arranged around a pipe j of circular, rectangular or other cross-section, or around the outer wall of a small oven to be heated, a resistance wire c being secured around the slips h by one or more strips g of fireclay cement. Additional layers of the wire c may be secured by strips of fireclay cement around longitudinal china-ware slips arranged on the previous winding; in this case the under layers need not be cemented to their supporting slips. Short slips arranged end to end may be used instead of single long strips, the ends of the short slips abutting together diagonally.