baber/WOPTO huggingface dataset:
Patent GB-774101-A (GB)
Title: Process of pigment printing and pigment padding textiles
Inventor: KLEINER HELMUT
IPC: D06P1/44
Filed: 1952-07-28
Abstract: A composition suitable for use as a printing paste comprises a solution, preferably aqueous, of a salt of an acid, preferably a weak and/or volatile acid such as acetic or lactic acid, and a polymer containing in its molecule aliphatic amino groups and groups capable of being reacted with the aliphatic amino groups, a pigment, and a thickening agent.  The group capable of being reacted with the aliphatic amino group may be a carboxylic acid, carbonamide, carbonimide, hydroxyl, sulphamide, isocyanate, nitrile or aldehyde group, a group containing a reactive double bond such as in acrylic or maleic acid, or a halogen atom.  In examples the polymer is (1) the reaction product obtained by refluxing polybutyl acrylate with tetramethylene diamine in butanol; (2) a basic polyurea prepared from diethylene triamine, g -g 1 - diaminodipropyl methylamine and hexamethylene diisocyanate; (3) a basic polyurethane prepared from dipropylene triamine and butane-bis-alkylchloroformate; (4) the reaction product of epichlorohydrin and g -g 1-diaminodipropyl methylamine; and (5) the product obtained by reacting epichlorohydrin with the mixture of diaminopropane and polyamines obtained by reacting epichlorohydrin with ammonia.  The pigment may be copper phthalocyanine and the thickener tragacanth.  The composition is applied to a textile fabric and the polymer cross-linked by heating at 80 DEG  to 200 DEG  C.ALSO:Textiles are decorated by applying a printing paste consisting of (1) a solution of a salt of a polymer containing in its molecule aliphatic amino groups and groups capable of being reacted with the aliphatic amino groups, (2) a pigment and (3) a thickening agent, and developing at 80 to 200 DEG C.  In examples the polymer is (1) the reaction product obtained by refluxing polybutyl acrylate with tetramethylene diamine in butanol; (2) a basic polyurea prepared from diethylene triamine, g -g 1 diaminodipropyl-methylamine and hexamethylene diisocyanate; (3) a basic polyurethane prepared from dipropylene triamine and butane-bis-alkylchloroformate; (4) the reaction product of epichlorohydrin and g -g 1-diaminodipropyl methylamine; and (5) the product obtained by reacting epichlorohydrin with the mixture of diaminopropane and polyamines obtained by reacting epichlorohydrin with ammonia.  The pigment may be copper phthalocyanine and the thickener may be tragacanth.
Patent GB-677341-A (GB)
Title: Improvements in or relating to the twist-setting of yarn
Inventor: HILLS DAVID WILLIAM
IPC: D06M10/00
Filed: 1949-07-20
Abstract: 677,341. Treating yarns. BRITISH NYLON SPINNERS, Ltd. July 26, 1950 [July 20, 1949], No. 19093/49. Class 120(iii) A process for reducing or removing the tendency to untwist of yarn comprising twisted fibres or filaments of a synthetic linear polyamide, comprises submitting the yarn to the action of a high frequency electric field by causing the yarn to run continuously between the plates of a condenser. In the case of polyhexamethylene adipamide yarn, the electrical input should be adjusted so that a temperature of not more than 240‹C. is reached. The condenser plates may be flat or concave and supplied at 1,000-10,000 volts and 1-60 megacycles frequency. In a textile machine with multiple yarn-treatment positions, e.g. a 150-end uptwister, one tuned condenser is provided for each travelling yarn, all the condensers being coupled to one oscillator. If the yarn loses moisture owing to treatment, it may be reconditioned after the treatment to bring its moisture content into equilibrium with prevailing atmospheric humidity. Specification 625,096 is referred to.
Patent GB-893633-A (GB)
Title: Improvements in and relating to process and apparatus for inspissating liquids
IPC: B01D1/06
Filed: 1960-05-30
Abstract: <PICT:0893633/III/1> <PICT:0893633/III/2> In an evaporator of the type in which the liquid to be inspissated is caused to flow downwardly in the form of a thin boiling film, along with the vapours produced, through a nest of steam-heated tubes 3 (Fig. 1), improved distribution of the liquid to, and improved wetting of, the tubes is achieved by causing the heated or superheated liquid as it enters the expansion chamber 4, at 5, to impinge on one or more baffles 6, 7 whereby the liquid is separated from the vapour produced, the so-separated liquid being collected on a peripherally flanged apertured plate 8 where it builds up and is urged through the apertures therein, by static pressure only, on to a second apertured plate 11, and is then urged, along with previously separated vapour, through the apertures in this lower plate to the heating tubes 3, the vapour being fed to the space between the two apertured plates through the annular passage 9 without loss of pressure.  The apertures in the plates 8 and 11 are preferably the same in number as, and positioned directly above, the tubes 3.  The top apertured plate is preferably provided with a cover 12 and apertured eddy-preventers 13.  In the construction of Fig. 2, the passage 9 for transferring the vapour to the space between the apertured plates constitutes a central tubular skirting to the upper plate 8.  In a modification, the top plate in which the tops of the heating tubes are embedded constitutes the lower apertured plate, the tops of the tubes accordingly being provided with restricted orifices.
Patent GB-351735-A (GB)
Title: Improvements in or relating to double disc wheels
IPC: B60B3/08
Filed: 1930-06-24
Abstract: 351,735. Disc wheels. SIMPSON, B. and MURDOCH, H. B., of Simpson, Fawcett & Co., Black Bull Street, Hunslet, Leeds. June 24, 1930, No. 19169. [Classes 12 (i) and 144 (i).] A wheel, particularly suitable for perambulators, toy velocipedes, and the like, comprises a pair of discs 1 the centres of which are fitted with externallyprojecting cups 2 which, as shown in Fig. 2, may constitute outer ball-races or, as shown in Fig. 1, may serve to house the ballraces 3. In a further modification, the races 3 are fitted in split channelsection rings pressed into the cups 3. In all cases, the latter are formed with lugs 10 clamped, and in some cases welded, to the inner edges of the wheel discs. Rubber or other resilient washers 7 may be fitted behind the inner ball-races 5.
Patent GB-743742-A (GB)
Title: N-methylol polypyrrolidones
IPC: C08G69/50
Filed: 1953-07-10
Abstract: Water-soluble N-methylol derivatives of polypyrrolidones are prepared by the action of formaldehyde in presence of a monohydroxycarboxylic acid on polypyrrolidone prepared as described in Specification 731,294.  Suitable acids for the reaction are aqueous glycollic or lactic acid.  The formaldehyde may be in the form of an aqueous solution of paraformaldehyde, of formalin or as a formaldehyde liberating substance.  Preferably half or more of the amide nitrogen atoms are substituted with methylol groups.  The products are preferably recovered by neutralization of the filtered reaction mixture.  The products may be used for films, for heat-reversible gels suitable as gelatine substitutes, or for finishes for textile fabrics or coatings for glass fibres (see Group IV (c)).  Heating fabrics impregnated with aqueous solutions of the N-methylol polypyrrolidones insolubilizes the polymer.  In a typical example polypyrrolidone was dissolved in 70 per cent aqueous glycollic acid and a solution of paraformaldehyde in dilute alkali was added.  The temperature was maintained at 55-60 DEG  C. for 1/2 hour, and the mixture diluted, filtered and the filtrate neutralized.  N-methylol polypyrrolidone separated on standing.  In an alternative procedure formaldehyde is first dissolved in the acid and the polypyrrolidone added to the mixture.ALSO:Aqueous solutions of N-methylol polypyrrolidones (see Group IV(a)) are used as finishes for application to textile fabrics or as coatings for glass fibres. Drying textile fabrics impregnated with the solutions insolubilizes the polymers and renders the finishes resistant to boiling water or wasing in soap solution. Example 5 describes treatment of cotton cloth by padding with a hot aqueous solution of N-methylol polypyrrolidone followed by drying at 110 DEG C. for one hour and washing with soap solution at 60 DEG C. for 10 minutes.  Application to nylon fabric gives similar results.
Patent GB-147150-A (GB)
Title: Improvements in and relating to electron discharge apparatus
IPC: H01J43/02
Filed: 1920-07-07
Abstract: 147,150. British Thomson - Houston Co., (Assignees of Hull, A. W.). June 5, 1916, [Convention date]. Void [Published under Sect. 91 of the Act]. Vacuum tubes.-A thermionic valve having a " negative resistance " characteristic as described in Specification 15555/15 comprises an incandescent cathode, an anode having a fixed positive potential, and a third electrode; and a control member adjacent the cathode has its potential varied, thereby varying the negative resistance of the valve and consequently varying the current in the external circuit connecting the cathode and third electrode. The valve may be used as an amplifier in wireless reception, or as an oscillation generator and modulator in wireless transmission. Fig. 1 shows one form of the valve. The tube 1 is highly exhausted and is provided with a cathode 2, preferably a tungsten filament, connected to leads 3. The anodes comprises two metal frames 5 with stretched wires 6, or perforated plates, connected to lead 8. The third electrodes 7 are connected to leads 9. The control member 11 comprises a wire wound to and fro over a frame 10 so as to enclose the cathode, and is connected to lead 12. In a modified construction of valve, the control member is in the form of a rod projecting axially through a spiral cathode which is surrounded by a spiral anode, and a cylindrical third electrode. In wireless reception, Fig. 2, the aerial 18 is coupled to a circuit connecting the cathode 2 and control member 11, the anode 4 is given a fixed positive potential by a battery 14, and the third electrode 7 is connected to the cathode through a battery 15 and resistance 16, the amplified potential appearing across the resistance being taken off at the terminals 17. The centrally-situated control member is preferably given a negative potential.
Patent GB-1499547-A (GB)
Title: Weighing equipment for stationary objects
IPC: G01G19/02
Filed: 1975-05-08
Abstract: 1499547 Weighing equipment ASEA AB 8 May 1975 [24 May 1974] 19366/75 Heading G1W Weighing equipment for weighing an object 1 comprises a plurality of supports 15, 16, 17, 18 each containing a load cell and each comprising an upper unit 2, 4, 5, 6, attachable to the object and a lower unit 7 supporting the upper unit, one of the supports 15 allowing no relative translational movement between its upper and lower units, and another support 16, 17, 18 including a bearing part 12 between its upper and lower units and allowing relative translational movement between the two units in at least one direction. Support 16 allows relative movement in one direction and supports 17, 18 in two perpendicular directions. Each upper unit comprises blocks 2, 5 inter-connected by a load cell 4, and a block 5 forming a spherical bearing with block 6. In support 15, flanges 13 surround block 6 to prevent lateral movement thereof. In support 16, two opposite flanges 13, or a rail on block 6 engaging a slot in base-plate 7, constrain block to to movement in a single direction. In supports 16, 17, 18, a layer 12 of polytetrafluoroethylene is provided for easy sliding of the block 6. Block 2 may form part of an upper spherical bearing. Body 1 may be a platform or a container.
Patent GB-319843-A (GB)
Title: Improvements in or relating to the treatment of tea
IPC: A23F3/00
Filed: 1928-07-04
Abstract: 319,843. Bateman, C. S. July 4, 1928. Tea, breaking or cutting.-Stalk is separated from tea leaf by arranging a bulk of tea with the stalk in contact with the upper surface of rollers or drums provided with longitudinal grooves, the rollers being rotated to engage the stalks and carry them away from the tea leaf, the stalks, being discharged from the grooves as they approach the lower or under surface of the drums. The machine comprises a series of rollers a with longitudinal grooves a<2> and a number of circular recesses a<1> which are chamfered at a<3>. The rollers are rotated through gearing and are separated by scrapers b which cut the leaf to the desired length as it is carried by the rollers. The leaf settles in the recesses a<1> and the stalk engages lengthwise in the grooves, the stalk and leaf being discharged into the compartments d<1>, d respectively. The rollers are arranged with their axes in an inclined plane, as shown, the space above the rollers being divided into chambers e by partitions f pivotally mounted at f<1> and having buffers f<2>. Some of the rollers may have recesses a<1> or grooves a<2> only. The tea may be supplied to the machine by a hopper provided with means for assisting in arranging the stalks to be parallel.
Patent GB-696292-A (GB)
Title: Improvements in or relating to jigs for use in the mounting by welding of ship's windows and the like
IPC: B23K37/04
Filed: 1950-08-03
Abstract: 696,292. Welding by fusion. THOMPSON, J. S., and THOMPSON, W. G. Aug. 1, 1951 (Aug. 3, 1950], No. 19394/50. Class 83 (iv). A jig for use in the welding of ships' window frames, has a frame of deep section, the shape of the window frame, means provided in faces of the frame members lying in the same plane for receiving a beading on the window frame and clamping bosses on the sides of the frame in which are clamping bolts with assymetric heads to engage a portion of the window frame. In one embodiment the jig 1, Figs. 1, 2, comprises a rectangular frame of angle-members to the under faces of the flange 1a of which are secured pairs of strips 2, 3 to position the bead of the steel window frame 4. To the outer faces of the flanges 1b of the angle members are welded lugs 5 to receive bolts 6 having eccentric heads 6a which fit below a flange 4a on the frame 4 and by means of nuts 7 clamp the frame 4 to the jig 1. The jig 1 thus maintains the shape of the frame 4 while it is being welded to the ship's plates 9. In a modification the angle bars forming the jig are placed with their flanges 11a, Fig. 4, outwardly and lugs 10 are welded to the inner faces of the upright flanges. One strip 12 is provided to position the frame 4 while bolts 13 having bent ends 13a pass inside the frame 4 to engage the bottom of the frame. The bolts may have " U "-shaped ends to hook over the frame 4. Specifications 600,890, 640,330, [both in Group XXXIII], 644,830, 645,220 and 696,427, [both in Group XXXIII], are referred to in the Provisional Specification.
Patent GB-730139-A (GB)
Title: Improvements in or relating to the preparation of halogenated substituted pteridines
IPC: C07D475/08
Filed: 1951-03-07
Abstract: 31,51-Dihalogenopteridines having in one tautomeric form the general formula <FORM:0730139/IV (b)/1> wherein R represents a hydroxyl radical or -COR is an amide radical derived from an aliphatic amino acid and Z represents two like halogen atoms, are prepared in the form of their hydrohalide salts by producing pteridines of the general formula <FORM:0730139/IV (b)/2> wherein R has the above significance, by the method of Specification 657,903, i.e. by mixing (i) a 2,4,5,6-tetra-aminopyrimidine or a tautomer thereof or an acid salt thereof; (ii) an a b -dihalogenopropionaldehyde or an acetal thereof or 1,1,3-trihalogenoacetone; and (iii) the required primary aromatic amine, and treating the pteridines thus produced with substantially two molecular proportions of halogen.  The reaction is carried out preferably in a solvent, e.g. an aqueous solution of a mineral acid to which the halogen may be added as a gas or in a solvent such as acetic acid.  The halogen may also be liberated in situ with the aid of hydrogen peroxide.  The reaction temperature for the halogenation may be within the range of -10 DEG  to 35 DEG  C. The hydrohalide salts may be converted into the ammonium and magnesium salts by reaction with aqueous ammonia or magnesia.  In the examples the following compounds are prepared: salts of 31,51-dichloro-and dibromo-pteroylglutamic acid, 31,51-dichloro - 4 - aminopteroylaminomalonic acid, 31,51 - dichloro - 4 - aminopteroyl - dl - isoleucine and 31,51-dichloro-4-aminopteroyl-dl-valine. 4-Aminopteroylaminomalonic acid is prepared by reacting 2,4,5,6-tetra-aminopyrimidine sulphate, 4-aminobenzamidomalonic acid and 2,3-dibromopropionaldehyde.  4-Aminopteroyl-dl-isoleucine is prepared by reacting 2,4,5,6 - tetra - aminopyrimidine sulphate, 4 - aminobenzoyl - dl - isoleucine and 2,3-dibromopropionaldehyde. 4-Aminopteroyl-dl-valine is prepared as above using 4-aminobenzoyl-dl-valine.
Patent GB-596540-A (GB)
Title: Improvements in or relating to method and apparatus for preventing offset in printing
IPC: B41F23/06
Filed: 1945-07-30
Abstract: 596,540. Printing-machines. FEENY, C. J. (Oxy-Dry Sprayer Corporation). ). July 30, 1945, No. 19427. [Class 100 (ii)] [Also in Group XXIX] Offset is prevented by depositing a fine powder, such as starch powder, on a printed web or sheet by high tension electrification of the powder. In Fig. 1, the powdered material is placed in a container 3 in the bottom of which is an aperture 5 covered by a foraminous or perforated member 6 of such a mesh that the powder is normally held from passing on to the printed sheet carried by a conveyer 25. When, however, electrodes 12 are charged by energizing a transformer T, discrete particles of powder pass through the member 6 and are attracted to the conveyer which is connected to earth as is also the member 6. Electrodes 12 are arranged above and below the member 6, and are adjustably mounted. The electrodes may be of pure iron and are fitted in quartz or other insulating tubes 11 which are preferably transparent to violet rays, the electrodes being supported in the tubes 11 by insulating rings. The tubes may be filled with argon or neon and may have mercury also. The electrodes 12 are connected to the secondary coil 16 of the transformer T. In a modification, Fig. 4, the powder is contained in a hopper fitted with flexible sides 127 with felt or like surfaces 130 which are engaged by a rotary member 101 which is rotated counterclockwise by a compressed air motor when discharge of powder is required. Beneath the member 101 an electric discharge tube 137, Fig. 4 and 7, is arranged, and the electrode is connected to the secondary S of a transformer which is energized by a dynamo 151. The distribution of the powder is assisted by a blast of air from apertures 133 in a pipe 132, which is supplied from the inlet pipe of the air-motor, so that the air pressure in tube 133 varies with the motor speed. The tube 137 is supported by adjustable brackets 138, and the member 101 is driven by reduction gearing from the motor. The air blasts are substantially in a vertical direction, and in addition to causing the powder to settle upon the printed matter'without remaining in suspension in the air, the electrical charge on the powder is adapted to neutralise static electricity produced by passage of the paper through the printing press.
Patent GB-1436201-A (GB)
Title: Method of preparing poly-n-vinylamines
IPC: C08F26/00
Filed: 1973-04-25
Abstract: 1436201 Poly-N-vinylamines TOM POLITEKHNICHE INST 25 April 1973 19543/73 Heading C3P [Also in Division C2] Polymers of N-vinyl amines are obtained by reacting a vinyl ether with a secondary aromatic or heterocyclic amine in the presence of a strong acid (to produce the N-vinyl monomer in situ, followed by polymerization). Organic solvent media are used. Known polymers obtainable in this manner using the corresponding starting amines and the specified vinylating agents include poly-N-vinyl carbazole, poly-N-vinyl-3- chlorocarbazole, poly-N-vinyl-3-methyl-, -3- nitro, 3-chloro-3-bromo-, -3-iodi-, -3,6-dibromocarbazoles, poly-N-vinyl-1,3,6,8-tetrahydrocarbazoles, poly-N-vinyl-diphenylamine, poly-N- vinyl-phenolthiazine and poly-N-vinyl indole, which the novel polymer poly-N-vinylphenoxazine may also be obtained. The acidic catalysts include sulphuric, perchloric, periodic, hydrogen chloride, boron trifluoride etherate. The polymers are of relative low molecular weight (100 to 3000) which correspond to approximately 5 to 15 monomer units per polymer molecule.
Patent GB-997762-A (GB)
Title: Process for priming the surfaces of articles formed from cross-linked polyolefin homopolymers or copolymers
IPC: C08J7/046
Filed: 1963-05-16
Abstract: A process for priming or lacquering the surface of an article formed from a cross-linked polyolefin homopolymer or copolymer comprises simultaneously or successively treating the surface with an organic peroxide as crosslinking agent and a lacquer containing as a film-forming constituent a copolymer of butadiene and styrene, and thereafter submitting the coated article to a heat treatment to effect curing of the lacquer and a cross-linking of said copolymer with the polyolefin homopolymer or copolymer. The lacquer may contain heat-resistant pigments such as iron oxide, red lead, chromium oxide or titanium dioxide.  The coating may be followed by a coating of a phenolic or alkyd resin.  The surface to be coated may be initially de-greased by a solvent, and the peroxide and lacquer applied by spraying.  The lacquer may also contain styrene.
Patent GB-975847-A (GB)
Title: Improvements relating to forming pellets from rubber chemicals
Inventor: JONES ALUN ANGUS
IPC: C08K9/08
Filed: 1962-05-22
Abstract: Finely divided agglomerates of rubber chemicals are prepared by mixing said chemicals with a binding agent comprising a polyalkyleneglycol or an aliphatic derivative thereof in which at least one of the hydrogen atoms of the terminal hydroxy groups is replaced by an aliphatic group, and forming the mixture into agglomerates. Specified polyalkylene glycol binding agents include polyethylene glycols having a molecular weight of between 1,000 and 6,000, polyalkylene glycol monoalkyl ethers, mono-esters of a polyalkylene glycol with an aliphatic acid, and compounds having two polyalkylene glycol chains linked through an aliphatic diepoxide grouping.  The binding agent is preferably present in an amount between 1% and 3% by weight of the dry rubber chemical. Specified rubber chemicals are N-cyclohexyl benzthiazyl-2-sulphenamide, 2-benzthiazyl disulphide, 2-mercaptobenzthiazole, diphenylguanidine, tetramethylthiuram disulphide and polymerized 2,2,4-trimethyl-1,2-dihydroquinoline. Additional components which may be present are water and wetting agents such as sodium dodecylbenzene sulphonate, 3-dodecyl hydrogen sulphate and triethanolamine oleate.
Patent GB-291260-A (GB)
Title: Improvements relating to cans and like containers
IPC: B65D45/16
Filed: 1927-07-23
Abstract: 291,260. Boutle, E. L. July 23, 1927. Handles; lids.-A bail handle 2 is attached to links 3 pivotally secured to the wall of a can by means of rivets 4. Lugs 6 adapted to be turned over to secure the lid in position are provided, preferably also mounted on the rivets. Specifica tion 177,081 is referred to.