baber/WOPTO huggingface dataset:
Patent GB-928263-A (GB)
Title: Production of dialkyl fumarates
IPC: C07C69/60
Filed: 1959-09-25
Abstract: Dialkyl fumarates containing 4-12 carbon atoms in each of the alkyl groups are prepared by heating a C4-12 alkyl hydrogen maleate with at least one molar proportion of a C4-12 alkanol at 100 DEG -175 DEG C., in the presence of either not more than 0.2 mol of a free hydrogen halide per mol of alkyl hydrogen maleate or a substance which acts as a source of hydrogen halide present in an amount which will generate, under the reaction conditions, not more than 0.2 mol of a free hydrogen halide per mol of alkyl hydrogen maleate.  Preferably, 0.01 to 0.05 mol of free hydrogen halide is present.  The alkyl hydrogen maleate may be formed in situ from maleic anhydride and at least two molar proportions of the alkanol.  The reaction is preferably effected under reflux using reduced pressure, if necessary, and a catalytic amount of sulphuric acid may be present.  The hydrogen halide catalyst may be HCl, HBr, HI, HF, thionyl chloride or bromide, phosphorus oxychloride, oxybromide, oxyiodide, oxyfluoride or trichloride, sulphur dichloride, sulphuryl chloride or fluoride or chlorosulphonic acid.  Examples describe the preparation of di-n-butyl and di-2-ethylhexyl fumarates by refluxing maleic anhydride with the appropriate alcohol in the presence of a hydrogen halide catalyst.  Numerous other alkanols are specified.
Patent GB-1133609-A (GB)
Title: Improvements in sockets for castors
Inventor: TOOTH ARTHUR CECIL
IPC: A47B9/08
Filed: 1966-07-20
Abstract: 1,133,609. Castors. FLEXELLO CASTORS & WHEELS Ltd. 7 July, 1967 [20 July, 1966], No. 32650/66. Heading A4U. A castor, in which the stem 6 of a wheel fork 7 is received in a synthetic plastics socket 1 which is push-fitted in a tubular leg 3, is prevented from falling out of the leg, when raised, by expansion of resilient plastic tongues 14 to frictionally engage the inner surface of the leg. The socket has recesses 9 in which the tongues are mounted and slots 10 communicating with the recesses and housing balls 11 which, on downward movement of the stem, are urged by projections 16 to engage a sloping face 13 and expand the tongues. In modifications the tongues are replaced by studs &c. passing through bores in the socket, or by weakened parts of the socket, connected to the remainder of the socket by thin web portions, urged outwards by balls or by direct contact with the sloping face. Load is normally supported by a projection 4 engaged in a depression 5 but under excessive load a flange 2 engages the wheel fork. In a further modification the socket is formed in two parts of semi-circular cross-section connected by interengaging pegs and sockets.
Patent GB-769344-A (GB)
Title: Improvements in and relating to pigments comprising sulphonamide-melamine-formaldehyde resins
IPC: C08G12/04
Filed: 1954-11-11
Abstract: A thermoplastic resin made by co-condensing an aromatic sulphonamide or a C-alkyl derivative thereof having at least two reactive hydrogen atoms attached to N and a formaldehyde condensate of melamine or an alkyl derivative thereof, or an alkanol modified methylol melamine, the melamine condensate containing at least two methylol groups and the amount of same not exceeding 50 per cent by weight of the sulphonamide resin when using a melamine derivative or an alkanol modified melamine, and not exceeding 20 per cent by weight when melamine is used. Specified sulphonamides are o-and p-toluene sulphonamides, benzene sulphonamide or the C-alkyl derivatives thereof.  Examples 1 to 6 inclusive describe the preparation of the resin by (1) addition of a partially condensed melamine formaldehyde resin to mixed o- and p-toluene sulphonamides; (2) addition of melamine and formaldehyde to mixed o- and p-toluene sulphonamides; (3) heating together o- and p-toluene sulphonamide, paraformaldehyde and partially condensed melamineformaldehyde resin; (4) adding partially condesned melamineformaldehyde resin to a heated mixture of o- and p-toluene sulphonamide and paraformaldehyde; (5) adding melamine to a heated mixture of o- and p-toluene sulphonamide and formaldehyde; (6) mixing formalin and o- and p-toluene sulphonamide and heating to form a resin to which is added partially condensed melamine-aldehyde resin.  The resin, having been ground at temperatures below 100 DEG  C., is suitable for use as a pigment with dye or other colouring matter which may be fluorescent, incorporated therein.  The dye may be incorporated with the resin: (1) during the cocondensation; (2) by dissolving the resinous product in a solvent, dissolving the dye in the resin solution and then evaporating the solvent; (3) by dissolving the dye in the molten condensation product; (4) by immersing the resinous product in an aqueous dye bath.  The resulting pigments may be used as coating compositions or printing inks.
Patent GB-980904-A (GB)
Title: Improvements relating to the dyeing or printing of articles made from polyolfines
IPC: C09B45/12
Filed: 1963-08-19
Abstract: Articles of polyolefines containing organic nickel chelate complexes are dyed with solutions or dispersions of metallisable azo or azomethine dyes which are free from acid, salt-forming groups or contain only such salt-forming groups which are capable of taking part in the metal complex formation.  The specified nickel complexes are derived from alkylated diphenols (the alkyls containing 4-12 C atoms), 2, 21-dihydroxy-5,51-diisooctyl-diphenyl sulphide, acetylacetone and dimethylglyoxime.  A number of suitable metallisable groupings are specified for the dyestuffs as well as a number of other suitable substituents.  Dyeing is performed from a weakly alkaline to weakly acid solution or dispersion, preferably above 100 DEG C. and under pressure.  The aqueous dispersions may contain dispersants a few of which are specified. Printing may be performed with a thickened paste and fixation may be achieved by steaming.  Examples are given of dyeing and printing fibres of polyethylene and polypropylene.
Patent GB-537516-A (GB)
Title: A beam controlling device for lamps
IPC: F21V11/00
Filed: 1939-12-22
Abstract: 537,516. Vehicle lamps. GLOVER, W. S. C. Dec. 22, 1939, No. 32719. [Class 75 (iv)] Comprises an apertured plate 1 covered by a transparent or translucent glass and attached to the front of a lamp together with a beam controlling unit (the standard headlamp mask), detachably or hingedly mounted in front of the plate 1 so that it can be lifted or swung clear of the glass 3 for cleaning &c. The mask consists of a box 5 with apertures 8 and baffles 6, 7, 9. In another form a single set of fixed vanes is carried by the hinged mask. In another form, Fig. 4, the vanes 14 of the hinged mask are pivoted and can be raised or lowered from the driver's seat, or otherwise, by a rod 17.
Patent GB-1011154-A (GB)
Title: Improvements in and relating to apparatus for folding and sealing filled packaging tubing or the like
IPC: B65B51/30
Filed: 1962-08-27
Abstract: 1,011,154. Packaging in heat-sealed tubing. SCHWEIZERISCHE INDUSTRIE - GES. Aug. 27, 1962 [Aug. 30, 1961], No. 32764/62. Heading B8C. [Also in Division B5] As a pair of heat-sealing jaws 4a, 4b move together to heat seal a tube extending (vertically in Fig. 6) between them, tucks are folded and held in the tube by pairs of links 5 pivoted together and to the welding heads. A duplicate set of links may be placed above the welding heads. A knife blade (not shown) in a slot 8b in one of the heads co-operates with a slot 8a in the other head. The welding heads are guided by slides (not shown) engaged by the brackets 3 to which the links 5 are pivoted.
Patent GB-1286759-A (GB)
Title: Improvements in or relating to off-shore loading and unloading installations for ships
IPC: E02B3/24
Filed: 1970-07-07
Abstract: 1286759 Offshore structures MANNESMANN AG 7 July 1970 [23 July 1969] 32789/ 70 Heading E1H A loading and unloading installation for an oil tanker 7 comprises a resilient tubular steel dolphin-pile 1 and a buoyant annular collar 2, which can rotate horizontally and move vertically relative to the pile and has an annular fender 19. An oil pipe 5 is supported by a pontoon 4 that is connected to the collar by a bridge structure 3 with a pivot at each end. The pile 1 may be replaced by a plurality of dolphin piles that are interconnected by a coupling member, or members, surrounded and engaged by the collar, Figs. 2 to 4 (not shown). As shown in Fig. 5, the pontoon 4 may be enclosed and be rendered integral with the collar 2, the member 3 being dispensed with and co-axial piles 11, 12 differing resiliencies in stiffness replacing the pile 1. In a further embodiment, Figs 7 and 8 (not shown), the pile 1 is retained, and the pontoon 4 is combined with the collar 2 and rendered rectangular so that two tankers can be berthed on opposite sides thereof, the member 3 being again dispensed with. The collar may contain ballast tanks.
Patent GB-512316-A (GB)
Title: A new or improved process for obtaining shrinkage of sheet material
IPC: A41B3/00
Filed: 1937-11-29
Abstract: 512,316. Woven fabrics. TOOTAL BROADHURST LEE CO., Ltd., CORTEEN, H. and FOULDS, R. P. Nov. 29, 1937, Nos. 32833/37 and 14134/38. [Class 142 (iv)] [Also in Group VII] A woven fabric for use in the manufacture of collars comprises groups of warp threads between the lines 11, 12, which have a greater tension imparted to them during weaving than the remaining warp threads, the collar blanks being cut from the fabric in such a manner that a group of warp threads of greater tension are located adjacent to the lower edge of the neckband. In a modification, pre-stretched threads are incorporated in the fabric during the weaving operation. The second Provisional Specification describes a method of producing differential shrinkage in a web by fixing to, or weaving into, the web, tapes, films, or threads which contract when wetted. The tapes, &c. may be woven in under tension or secured by sewing, threading, or adhesive, and may produce longitudinal or lateral shrinkage of the web.
Patent GB-415916-A (GB)
Title: Improved remote controlled device for inserting and extracting primers for large bore guns
IPC: F41A19/57
Filed: 1933-11-24
Abstract: 415,916. Ordnance. SCHNEIDER ET CIE, 42, Rue d'Anjou, Paris. Nov. 24, 1933, No. 32935. Convention date, Jan. 27. Addition to 372,984. [Class 92 (ii).] The cam devices described and claimed in the parent Specification for successively sliding the lock-frame, extracting the fired primer, conveying a fresh primer from a magazine into line with the vent, and inserting the fresh primer are, according to the present invention, so constructed that they effect both forward and return movements of the operating lever-mechanisms. The cams also serve to retain the mechanisms in position during the idle periods and enable return springs to be dispensed with. Fig. 2 shows in sectional plan the cam devices 4-11 arranged in pairs which severally act to convey forward and return movements to the rods 27, 31, 42, 45 performing the desired sequence of operatioris. The cam devices 4, 5 for sliding the lock-frame shown in Fig. 5 include a surface 4<a> on the cam 4 engaging a projection a<4> on the rod 27 for effecting the opening movement of the lock-frame, and a surface 5<a> on the cam 5 engaging a projection a<5> on the rod 27 for closing the lock-frame. The pairs of cams performing the other operations are similarly constructed.
Patent GB-871500-A (GB)
Title: Improvements in or relating to the production of ascorbic and dehydroascorbic acids
IPC: B01J19/08
Filed: 1956-10-30
Abstract: L-ascorbic acid or L-dehydroascorbic acid or their stereoisomers are obtained by irradiating with ionising radiation the g -lactone of the appropriate aldehexonic acid in aqueous solution and in the substantial absence of oxygen.  The lactones are oxidised by the products resulting from the irradation of the water present to give the corresponding ascorbic acids, the dehydroascorbic acids being formed as the result of irradiation of the ascorbic acids thus produced.  The dehydro-ascorbic acids may subsequently be converted to the ascorbic acids, e.g. by reaction with hydrogen sulphide.  The reaction is preferably performed in dilute solution, the yield increasing with concentration.  Yield is also increased by the presence of Ce++++, Fe+++ or Tl+++, i.e., an easily reducible ion.  X rays, g  rays, or b  rays may be used for irradiation, or high energy electrons.  The conversion rate is of the order of 1 molecule per 100 ev of energy absorbed.  The ascorbic acid products may be separated by ion-exchange or electrodialysis thus enabling the process to be carried out in a cyclic manner.  In Examples (1) D-gulono-g -lactone, D-glucono-g -lactone, L-galactono-g -lactone, and L-gulono-g -lactone are irradiated with 210 K.V.X rays in aqueous solution at a concentration of 5 x 10-4M and a dose rate of 1,24 x 1017 eV/ml/min. for 15 minutes to give the corresponding ascorbic acids.  (2) D-gulono-g -lactone is converted to D-arabo-ascorbic acid in aqueous solution by p  irradiation with 4MeV electrons.  (3) As in (2) but using 60Cog  radiation.  Further reactions with 0,1M solutions of D-gulono-g -lactone give increased yields.
Patent GB-331971-A (GB)
IPC: G03C7/04
Abstract: 331,971. Soc. Franþaise de CinÚ- matographie et de Photographie Films en Couleurs Keller-Dorian, (formerly Soc. du Film en Couleurs Keller- Dorian), Averan, A., and Kitroser, I. Oct. 23, 1928, [Convention date]. Addition to 308,320. Drawings to Specification. Colour kinematography.-In projecting photographs, in colour from embossed films, instead of the special objectives described in the parent Specification, an ordinary objective is used with a collimating lens. The objective has a wide numerical opening and is diaphragmed by the colour filter screen in front, which has a smaller numerical opening, thus ensuring that the objective will not have the cat's eye defect. With the filter in front the collimating lens need not be so powerful to bring the filter to the same optical distance as the taking filter and the Petzval curves are reduced. Specifications 247,168; and 304,643, [Class 98 (ii), Photographic processes &c.], are referred to.
Patent GB-1047959-A (GB)
Title: Polyolefine mixture
IPC: C08L23/06
Filed: 1963-08-22
Abstract: A polyolefine mixture comprises 60-95% by weight of a polyethylene having melt viscosities corresponding to 15-values of 0.1 to 40, prepared by a low pressure polymerization process, and 5 to 40% by weight of a polypropylene having an isotactic fraction of at least 60% by weight and having a melt viscosity corresponding to 15-values of 0.1 to 40. The mixture may also contain a stabilizer and/or a filler and/or a dye and/or a pigment.
Patent GB-1083576-A (GB)
Title: Improvements in or relating to tiled fireplaces
Inventor: MASTERMAN ALFRED WITT
IPC: F24B1/198
Filed: 1963-08-23
Abstract: 1,083,576. Tiled surrounds for open fireplaces PEARSON BROS. (NOTTINGHAM) Ltd.. Aug. 24, 1964 [Aug. 23, 1963], No. 33394/63. Heading F4W. An all-tiled surround 1 for an open fireplace incorporates an embedded sheet or a backing of heat screening material 8 situated over the upper edge of the tile surround opening 2. The heat screening sheet which may be horizontal or inclined is made from asbestos, asbestos matting, rapid hardening cement, builder's paper, aluminium foil or vermiculite mix. The surround may be of the type disclosed in Specification 683,619.
Patent GB-430965-A (GB)
Title: An improved packet for packing cigarettes
IPC: B65D5/66
Filed: 1934-11-20
Abstract: 430,965. Cigarette cases. MORENO Y MIRANDA, D., Calle Continuacion de Robayna, Santa Cruz de Teneriffe, Canary Islands. Nov. 20, 1934, No. 33416. [Class 18] A pasteboard cigarette case comprises a body part B and a cover A pivoted together by eyelets C, one on each side of the case.
Patent GB-986856-A (GB)
Title: High pressure release connector
Inventor: BEZANT EDWARD COVERLEY
IPC: F16L37/113
Filed: 1962-08-31
Abstract: 986,856. Pipe couplings. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Aug. 15, 1963 [Aug. 31, 1962], No. 33489/62. Heading F2G. A connection for a fluid carrying pipe line 2 comprises a body member 4 with one end screw threaded to a socket 5 and surrounding a tubular member 1 connected to the pipe line, the end of the tube member having a nipple joint face 3 to make a fluid tight junction between the pipe line and the socket, a handle 8 slidable axially of the body member 4 and urged by a spring 11 to cover slots 10a, 10b in its forward end to co-operate with castellations on a member 7 keyed to the body member 4 and a sleeve 14 mounted on the body member 4 and movable axially thereof under the action of fluid pressure so as to overcome the spring pressure and disengage the handle from the body member. The tubular member 1, the body member 4 and the socket 5 enclose a chamber 17 and the sleeve 14 and body member 4 are formed with steps in their internal and external diameters that enclose an annular space 16. Holes and clearance provide fluid communication between the spaces 16 and 17. To undo the connector, the handle 8 is grasped by knobs 9a, 9b thereon and turned so that its rotation, transmitted through the dog coupling between the slots and castellations, unscrews the body member 4 from the socket 5. If there is high pressure in the pipe line there will be high pressure in the chamber 17 and this pressure will be transmitted to the annular space 16 and will force back the sleeve 14 against the spring pressure, causing the dog coupling to be disconnected and breaking the transmission of rotary motion from the handle. Holes 22, 23 are also formed and provide a relief passage for the fluid pressure. When the pressure in the pipe line has fallen to such a value that the spring 11 returns the handle and sleeve to their original positions, further unscrewing can be carried out to complete the disconnection.
Patent GB-652529-A (GB)
Title: Improved means for applying pressure in cheese presses and the like
IPC: A01J25/15
Filed: 1948-12-30
Abstract: 652,529. Press. NATIONAL DAIRY ASSOCIATION OF NEW ZEALAND, Ltd. Dec. 30, 1948, No. 33544. [Class 122(iii)] [Also in Groups I and XXIX] The ram 1, and the cylinder 2 of an air operated cheese press have cross-members 7, 8 respectively carrying pawls 10, 11 which engage ratchet teeth 9 on the press frame 6, and are arranged to prevent rearward movement. The air supply, controlled by the valves in valve body 15 acting on the liquid filling the ram, first advances the ram, pawl 11 preventing movement of the cylinder. The valve arm 16 reaching the end of block 34 then reverses the air supply, but since pawl 10 prevents rearward movement of the ram the cylinder 2 is moved forward. Alternate movement of the ram and cylinder thus produces a long pressure stroke. Levers 43 are provided to lift the pawls when backward movement of the assembly is desired.
Patent GB-507881-A (GB)
Title: Improvements in or relating to hydraulic shaping machines or other machine tools
IPC: B23Q5/033
Filed: 1938-04-01
Abstract: 507,881. Hydraulic machines. ROCKFORD MACHINE TOOL CO. April 1, 1938, No. 33577. Convention date, April 8, 1937. Divided out of 507,363. Drawings to Specification. [Class 69 (ii)] [Also in Group XXII] A hydraulic shaper or other machine tool has a hydraulic motor for reciprocating a carriage and a fluid supply system for the motor including a number of control valves each having a casing, all the valve casings and the motor casing being cast as a single integral member. The machine embodiment is the same as that described in Specification 507,363.
Patent GB-340084-A (GB)
Title: Improvements in cylinder construction of multi-cylinder internal combustion engines
IPC: F02F1/10
Filed: 1929-11-05
Abstract: 340,084. Cylinders ; cooling exhaust. MANDLER, E., 28, Wiednergurtel, and CLIMAX MOTORENWERKE UND SCHIFFSWERFT LINZ AKT.-GES., 18, Schwarzenbergplatz, both in Vienna. Nov. 5, 1929, No. 33619. Convention date, Nov. 6, 1928. [Class 7 (ii).] In a two-stroke-cycle engine the cylinder block comprises a number of barrels a which are integral with, or attached to, the top half of the crank case and are free to expand at their head ends ; a cap c covering the whole block forms the water jacket, and packings d allow relative movement in a transverse direction between the cap and detachable cylinder heads. The cap may extend to the level of the cylinder ports. The Specification as open to inspection under Sect. 91 (3) (a) comprises also exhaust and inlet passages which are arranged within the block and lead to chambers g, i, arranged under the engine or in the crank case ; the cylinder water jacket may extend to x to cool the exhaust pipes. This subject-matter does not appear in the Specification as accepted.
Patent GB-819778-A (GB)
Title: Improvements in apparatus for applying lotions, dyes, bleaches or like liquids to the hair
IPC: A45D19/02
Filed: 1957-10-29
Abstract: 819,778. Liquid applicator. KALEY, F. McDOUGALL-. Oct. 29, 1957, No. 33756/57. Addition to 808,762. Class 81 (2). The apparatus for applying liquids to the scalp described in the parent Specification is modified by the provision of an additional cavity 35 above the rotary brush for more efficient distribution of the lotion.
Patent GB-1360837-A (GB)
Title: Lock-out mechanisms for switches
IPC: H01H33/66
Filed: 1972-10-19
Abstract: 1360837 High voltage switches REYROLLE PARSONS Ltd 19 Oct 1972 [19 July 1971] 33810/71 Heading H1N A switch having butt contacts 11, 12 is provided with an automatic lock-out mechanism operated by the release of a spring loaded latch 18 held against release by a detent member 16 coupled to the movable butt contact 11, the latch being released by the travel of the detent member on closing of the switch after a predetermined amount of contact wear has taken place. The switch may be a high voltage switch having an evacuated enclosure or a sealed enclosure containing an electro-negative gas which may be at a pressure above atmospheric. The detent member may be a rod against which the pivoted latch 18 bears, the latch being coupled by a link 24 to the lock-out mechanism. A second spring loaded latch not coupled to the lock-out mechanism may be released when a lesser degree of wear has occurred to provide a warning indication. Alternatively, means may be coupled to the detent member 16 for providing a remote indication of contact wear. In a further arrangement Fig. 2 (not shown) the detent is a pivoted cam lever having a cam surface against which the latch member engages. In this case the angular position of the latch member changes as contact wear occurs and may cause the operation of a potentiometer to effect electrical indication of contact wear.
Patent GB-1047698-A (GB)
Title: Process for the hydrorefining of heavy oils
Inventor: ARRIGO JOSEPH THOMAS
IPC: B01J31/18
Filed: 1963-08-27
Abstract: Heavy petroleum oils containing pentane insoluble asphaltenes are hydrorefined in a process comprising mixing the oil with a substance having a thermally unstable metal co-ordination compound structure, said substance being selected from the carbonyls, betadiketone complexes, xanthate complexes, and the reaction product of the metal halide with an organic compound containing carbon, hydrogen, and oxygen as the sole elements thereof and selected from acids, anhydrides, esters, ethers, ketones and aldehydes, of a metal selected from vanadium, niobium, tantalum, molybdenum, tungsten, iron, cobalt, and nickel. The resulting mixture is heated to a temperature less than 310 DEG  C. for a time sufficient to decompose the metal co-ordination compound and the colloidal suspension thus formed is reacted with hydrogen at a temperature in excess of 225 DEG C. and a pressure greater than 34 atmospheres, a hydrorefined liquid product being recovered.  Prior to treatment with hydrogen, the suspension may be sulphided. From the hydrorefined product a catalyst-containing sludge may be separated which may be at least in part recycled to the reaction zone combined with fresh heavy petroleum.