baber/WOPTO huggingface dataset:
Patent GB-760169-A (GB)
Title: N,n-bis-quinaldines and methods of preparation thereof
IPC: C07D215/46
Filed: 1954-06-25
Abstract: The invention comprises bis-quinaldines of the general formula <FORM:0760169/IV(b)/1> wherein the substituents R, which are identical, are -N-(CH3)2, -NO2, -NH2 or -NHCOCH3 groups and X is a straight or branched chain alkylene group having from 2 to 10 carbon atoms, p-phenylene or -CH2-CHOH-CH2-, and their acid addition salts and nuclear quaternized salts; and their preparation by heating about 2 mols. of the appropriately-substituted 4-chloro- or 4-methoxy-quinaldine with one mol. of a diamine H2N-X-NH2, in the presence of phenol.  The invention also comprises (a) the preparation by the above general method of compounds of the above formula in which R is an acetamido group with subsequent hydrolysis with acid to the corresponding 6-amino compound, and (b) reduction of compounds of the above general formula, or acid addition salts thereof, where R is a nitro group, to the corresponding 6-amino compounds.  In examples: (1) 4-methoxy-6-acetamidoquinaldine and 1,3-diaminopropane are heated with phenol and the melt is subsequently hydrolysed with hydrochloric acid to give N,N1 - bis - (2 - methyl - 6 - amino - 4 - quinolyl) - 1,3 - diaminopropane, isolated as the di- or tetra-hydrochloride; (2)-(4), N,N1-bis - (2 - methyl - 6 - amino - 4 - quinolyl) - 1,3 - diamino - propanol - 2, -octamethylenediamine and-p-phenylenediamine, isolated as their dihydrochlorides, are similarly prepared; (5) 4-chloro - 6 - acetamido - quinaldine and heptamethylene diamine are heated with phenol and the crude dihydrochloride of the diacetyl compound so formed is hydrolysed to yield N,N1-bis - (2 - methyl - 6 - amino - 4 - quinolyl) - heptamethylene diamine dihydrochloride; (6) 4-chloro - 6 - acetamido quinaldine and hexamethylene diamine give N,N1-bis-(2-methyl-6-acetamido - 4 - quinolyl) - hexamethylene diamine dihydrochloride, which is then hydrolysed to the corresponding 6-amino compound, isolated as the dihydrochloride and converted to the di-isethionate; (7) 4-chloro-6-nitro-quinaldine and hexamethylene diamine give N,N1-bis - (2 - methyl - 6 - nitro - 4 - quinolyl) - hexamethylenediamine dihydrochloride; (8) p-dimethylamino aniline and methyl acetoacetate give methyl b  - (p - dimethylaminoanilino) - crotonate, this is cyclized by adding it to refluxing "Dowtherm" (Registered Trade Mark) to give 4-hydroxy-6-dimethylaminoquinaldine, the latter with phosphorus oxychloride gives 4-chloro-6-dimethylamino-quanaldine and this with hexamethylene diamine gives N,N1 - bis - (2-methyl - 6 - dimethylamino - 4 - quinolyl) - hexamethylenediamine dihydrochloride; (9) 4 - chloro-6-dimethylaminoquinaldine and methyl iodide give 4-chloro-6-dimethyl-amino-1-methiodide quinaldine and this with hexamethylene diamine gives N,N1-bis-(2-methyl-6-dimethylamino - 1 - methiodide - 4 - quinolyl) - hexamethylenediamine; (10) N,N1-bis-(2-methyl-6-nitro - 4 - quinolyl) - hexamethylene diamine, or its dihydrochloride, is reduced with iron powder in an acidic medium to the corresponding 6-amino compound.
Patent GB-1357775-A (GB)
Title: Centrifuge for draining off water from sewage sludge
IPC: B04B1/20
Filed: 1971-06-03
Abstract: 1357775 Screw centrifuges I KRUGER AS 3 June 1971 [11 June 1970] 18790/71 Heading B2P  A centrifuge for draining off water from sewage sludge comprises a rotatable bowl 3 having a shaft, an inlet 2 in or adjacent the shaft for introducing sludge into the bowl, the bowl having a first portion which increases in diameter in a direction away from the inlet 2 and a second portion which merges with the larger diameter end of the first portion, and delaying means located in the interior of at least the said first portion for delaying the passage of sludge therethrough and comprising a helical wall or walls 4 adapted to rotate at a speed slightly different, e.g. by ¢ to 10%, from that of the bowl. In Fig. 1, the sludge particles are conveyed towards the right by the helical wall(s) "4 and are evcauated at 6. The sludge water leaves the bowl at 7 through a boring 8 in a shaft 4 which with the wall(s) 4 form a conveyor. In Fig. 2, the sludge conveyed towards the right pass at 9 into an outer chamber 10 surrounded by a rotary outer bowl 11 and is then conveyed towards the left through an outlet opening 12.
Patent GB-864780-A (GB)
Title: Apparatus for handling material in bulk
IPC: B60P1/04
Filed: 1958-06-12
Abstract: 864,780. Unpacking. SPAYNE, R., and REYNOLDS, E. C. Sept. 14, 1959 [June 12, 1958], No. 18791/58. Class 94(1). [Also in Group XXX] A device for raising part of a stack of sheets to obtain access to sheets in the middle of the stack comprises a frame 6 adapted to swing about a horizontal axis 5 and provided with jaws 9, which are movable towards one another, a plate 23, and members 22 which connect the plate to one of the jaws. In operation, with frame 6 in a vertical position, the lower jaw 9 is located beneath a pallet 29 supporting the stack, next the jaws are moved simultaneously towards one another to raise and clamp the stack as shown in Fig. 5. Then the platform is moved into a horizontal position in which plate 23 is inserted adjacent the sheets to be removed and is coupled to the right hand jaw by members 22. The frame is then returned to a vertical position whereafter the jaws are separated to deposit the pallet, together with the lower portion of the stack, on the ground with the upper portion of the stack hanging from the upper jaw. Pins 24, 26 are provided to lock the frame in both the horizontal and vertical positions. Jaws 9 are carried by wheeled carriages 10 movable along guides 11 by a pair of screws 13 which have opposite hand threaded portions at each end, and are driven synchronously by worm gearing 19, 20 and chain gearing 16, 17, 18. In a modification, Fig. 8 (not shown), the jaws are movable hydraulically and the frame is rotated by power means. In a further modification (not shown), the frame is mounted in a vertical position on a wall and only the lower jaw 9 is movable, the stack being loaded into and removed from the device by a fork lift truck.
Patent GB-960402-A (GB)
Title: Improvements in or relating to electric circuit-breakers
Inventor: ALDERMAN ALFRED
IPC: H01H33/86
Filed: 1959-06-02
Abstract: 960,402. Gas-blast switches. ENGLISH ELECTRIC CO. Ltd. June 1, 1960 [June 2, 1959], No. 18794/59. Heading H2B. A gas-blast circuit-breaker comprises a centre section 16, a pair of oppositely-projecting hollow insulators 20 mounted one on each side of the centre section and each forming an enclosure for a pair of co-operating contacts, a common source of compressed gas and a common exhaust valve 18 to control the flow of gas from the source through the enclosures, through a nozzle contact of each pair of contacts and the valve to atmosphere. To open the circuit breaker, the control rod 106, Fig. 4, is moved upwardly and the rod, through a bell-crank lever 105, displaces a valve control lever 101 to the left to open a pilot valve 102 which admits compressed air to the lower face of a piston 74, Fig. 2, to open the exhaust valve 18. The resulting reduction in pressure within the hollow moving contacts 41 permits the pressure in the contact enclosures to cause the initial movement of each moving contact 41 which separates from resilient fixed contact fingers 27, the " fixed " arcing contact 29 moving with the moving contact 41 under the bias of a spring 33. This initial movement causes each contact actuating piston 49 to uncover a port 50, Fig. 5, to admit compressed air to a cylinder 48 and cause the piston to withdraw the associated moving contact 41 from the arcing contact 29. As each moving contact 41 is moved from its closed to its open position, an associated spring toggle 91, 92 moves over centre to maintain the contacts open. Providing both moving contacts 41 open, the toggles, through links 96 . . . 100, turn the valve control lever 101 to release the pilot valve 102 which recloses and so permits the exhaust valve 18 to reclose. The lever 101 also operates a valve 103 which exhausts cylinders 31 so that the compressed air in the circuit breaker moves pistons 32 to retract the arcing contacts 29 to provide contact gaps adequate for isolation purposes. To close the circuit-breaker, the rod 106 is moved downwardly causing the bell-crank lever 105 to move the lever 101 to the right to release the valve 103. This allows each arcing contact 29 to move towards the associated moving contact 49 under the bias of its spring 33. The right hand end of the lever 101 operates a valve 104 to admit compressed air to the operating cylinder 124 of a change-over valve 122 which opens each port 50 to atmosphere and admits compressed air to another port 51 of each cylinder 48. The pistons 49 now close the contacts, the toggles 91, 92 passing back through their deadcentre positions to bias the contacts closed and to cause the lever 101 to pivot so that the valve 104 is released and recloses, shutting off the supply of compressed air to the cylinder 124 so that the change-over valve 122 restores. Specifications 960,403, 960,404, 960,405 and 960,406 are referred to. Reference has been directed by the Comptroller to Specification 919,843.
Patent GB-671809-A (GB)
Title: Improvements in or relating to electrolytic condenser
IPC: H01G9/00
Filed: 1950-07-27
Abstract: 671,809. Electrolytic condensers. PLESSEY CO., Ltd. July 27, 1950 [July 30, 1949], No. 18799/50. Class 37. An electrolytic condenser comprises a cathode of metal of the silver-copper group, an anode of tantalum and an electrolyte, e.g. sulphuric acid, so that during the passage of A.C. the electrolyte dissolves ions from the cathode in the positive half-cycle, and redeposits them on the cathode during the negative half - cycle. In an embodiment, the anode 11, of porous tantalum, is supported between rubber stoppers 16, 51, 52 centrally in a cylindrical, sealed, copper can 14, whose inner surface is coated with silver 12. The can is filled with an immobilized electrolyte, e.g. sulphuric acid in gel form, as produced by the addition of silica gel. A layer of dialysing paper (not shown) may be used to line the inside of the cathode to prevent dissipation of the dissolved metal throughout the electrolyte.
Patent GB-581658-A (GB)
Title: Improvements in or relating to gear cases for cycles
IPC: B62J13/04
Filed: 1944-10-03
Abstract: 581,658. Cycle gear-cases. BIRMINGHAM SMALL ARMS CO., Ltd., and MacCABE, D. A. Oct. 3, 1944, No. 18851. [Class 136 (i)] In a cycle gear-case of the type having a central horizontal opening 3 for the passage of the adjacent chain stay tube 5 the rear portion 13 extends from a point above and behind the rear axle, at which it is hinged, to a point forwardly of that at which the front end of forwardly and downwardly extending slots of the rear forks would occupy in the gear case, at which point it is secured by a spring catch 19 pivoted on the main body of the gear case which is held in position on its frame by a strap 21. To prevent entry of foreign matter the hinged member 13 has offset marginal flanges 15 to pass inwardly into the main body portion.
Patent GB-485896-A (GB)
Title: Improvements in and relating to devices for screening flues, chimneys and the like
IPC: F23J11/00
Filed: 1937-07-07
Abstract: 485,896. Spark arresters. NEUNKIRCHER EISENWERK AKT.-GES. VORM. GEB. STUMM, and HAAG, J. July 7, 1937, No. 18857. [Class 25] A spark arrester for furnace chimneys comprises a cover 11 extending outwardly beyond the edges of the chimney and a curtain of iron chains or bars 17 freely suspended from the edges of the cover. The cover is of reinforced concrete with a lower one-piece lining of sheet iron and is supported by adjustable members 12 secured to the chimney.
Patent GB-204437-A (GB)
Title: Improvements in advertising signs or the like
IPC: G09F19/18
Filed: 1922-07-10
Abstract: 204,437. Ryeland, A. E., and Multi-Way Earthing Clip, Ltd. July 10, 1922. Endless - chain and like carriers, apparatus with; optical-projection apparatus, applications of.-An optical-projection sign comprises an endless chain of transparencies 5 moving over polygonal drums 3, 4 intermittently operated automatically to change the transparencies. The carriers 6 forming the chain are hinged together at 8 and are provided with slots 7 for removal of transparencies. The chain passes between guides 9, 10, and each transparency is centred in the optical system 11 by a spring- controlled lever 22 having a projection which engages a notch in the carrier 6. The lever 22 is operated by a cam 21 on a shaft 17 rotated by an electric or other motor 15. The shaft 17 carries also a slotted arm 18 with an adjustable roller 20 which engages vanes 14 on a drum spindle 1. The vanes 14 may be adjustable. radially. A cam 29 on the shaft 17 may actuate a mercury switch controlled by a dash-pot. By this means the motor 15 is switched off at every revolution of the shaft 17 and is not started again till the dash-pot makes contact, thus allowing a prolonged period of display for the transparency. A cam 26 operates through a lever 27 a shutter of graduated opacity. The screen on which the image is projected comprises a sheet of clear glass 37 and a sheet of ground glass 38 separated from one another and sealed at their edges to prevent entrance of dust, the ground surface being inside. In front of this pair of sheets and at a distance therefrom with a free space between is mounted a sheet 39 of coloured glass, celluloid, " cellon " or " cellenite," and. if desired, a further sheet of clear glass 40, the image on the ground glass being viewed through the sheets 39, 40.
Patent GB-120916-A (GB)
Title: Improved Fixture for Steel Bands.
IPC: B64C3/00
Filed: 1918-11-18
Abstract: 120,916. Naamlooze Vennootschap Nederlandsche Automobiel-en Vliegtuigfabriek Troxpenburg. Nov. 19, 1917, [Convention date]. Void [Published under Sect. 91 of the Act]. Wire and rod couplings.-Flat steel bracing- bands for aircraft and other structures are secured by bending them over wedge-shaped blocks which are slid sideways into tapered recesses and held in place by sleeves. Fig. 1 shows two bands a, b bent over a wedge f and into a slot g in the base of the wedge. The bands and wedge are inserted between the tapered jaws of a fork e and a tubular sleeve c is slid over a turned part of the fork. The wedge f may be in two parts to distribute the load on the two bands.
Patent GB-646360-A (GB)
Title: Impedance-matching device for transmission lines
IPC: H01P5/04
Filed: 1945-07-24
Abstract: 646,360. Electric resonators. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. July 24, 1945, No. 18983. Convention date, June 30, 1943. [Class 40 (viii)] An impedance-matching device for coaxial transmission lines comprises an outer co-axial resonator 13, 16, connected in shunt to one transmission line at 10, and an inner resonator 16, 21 connected in series to the other transmission line at 20. The maximum length of each of the resonators is half a wave-length, and they are tuned independently by means of a short-circuiting annulus 17 and diaphragm 22 operated respectively by a nut 25 and screw 32, spring contacts 29 of the kind described in U.S.A. Specification 2,280,728 being provided. In a modification, Fig. 2 (not shown), two such resonators are structurally combined end-toend. The outer resonator 13, 16 is then one wave-length long, the connection 20 for one inner resonator is at the middle of the double line, and a similar connection to a second and similar inner resonator replaces the connection 10. One of the outer resonators may be tuned as shown in Fig. 1, while the other is preset by means of a screw-ended rod temporarily inserted through the end cap. Figs. 3, 4 (not shown), are graphs for use in selecting the required impedance combinations.
Patent GB-165667-A (GB)
Title: Improvements in fluid-tight joints particularly for liquid level indicators and the like
IPC: F16J15/04
Filed: 1920-07-06
Abstract: 165,667. Hunziker, F. July 6, 1920. Butt joints; walls and the like, securing pipes and tubes to.-Fluid containers are made from elastic transparent material such as celluloid, cellon, or cellonite, the joint between the parts being made fluid-tight by direct pressure without the use of packing material. The joint between the container 2 and the union 3, of hard material, may be a simple butt-joint as in Fig. 1, or the wall of the container may be tapered or rounded at 1. The wall of the container may be tapered or rounded and fitted into a V-groove in the union. This form of joint is used in the oil-level indicator 21, Fig. 6, the parts being held in the seating nipple 22 by the pressure-screw 23. In Fig. 7, the gauge has a very slightly reduced arm 34 which is inserted in a hole in the wall of the container 35. A modification shows the arm 34 provided with a strengthening collar and fitting over a spigot formed on the wall of the container. Fig. 9 shows a sight-feed lubricator in which the reservoir 40 and show glass 44 are made from celluloid or the like. A modification of this arrangement shows the reservoir and show-glass made in one piece.
Patent GB-227063-A (GB)
Title: Improvements in sewing machines for making festoons
IPC: D05C7/06
Filed: 1924-08-11
Abstract: 227,063. Mischke, K. June 4, 1924, [Convention date.]. Trimming or cutting.-Trimming means for a festooning machine having twin needles is composed of upper and lower cutters 2, 1, the axes of which intersect the plane containing the needles in the plane of the work so that the material is cut at the stitching point. The cutter 2 is carried by a bar 15 freely mounted in a sleeve 23 which is rotatably mounted in a bracket 16. The bar 15 is reciprocated by a universal connection to a crank 18 and may be rotated in accordance with the shape of the festoon by an arm 24 splined thereto and carried by the sleeve 23 which is actuated from suitable controlling means. The flat blade 2 is bevelled at its end to engage easily between the spring forks 8, 9 of the cutter 1. The cutter 1 is rotatably mounted in a bracket 4 and is reciprocated to avoid the needles when in the work by connection to a suitablyactuated rod 5. The cutter 2 is formed with a slot 12, which always embraces the work and contains a cutting edge 13 which co-operates with the longer arm 8 of the cutter 1. The cutter 2 is recessed at 11 to allow the reciprocation of the needle, while the. floor 10 of the fork 7 in the cutter 1 is inclined to prevent snippings collecting therein.
Patent GB-1166132-A (GB)
Title: New Water-Soluble Basic Monoazo Dyestuffs and processes for their manufacture
IPC: C09B44/04
Filed: 1967-04-26
Abstract: 1,166,132. Basic monoazodyes. FARBWERKE HOECHST A.G. 26 April, 1967 [26 April, 1966], No. 19149/67. Heading C4P. The invention comprises basic monoazodyes free from sulphonic and carboxylic acid groups and having the general formula wherein Y is halogen, CF3, alkylsulphone, arylsulphone, CN, carboxylic acid ester, a sulphonic or carboxylic acid amide group which may be substituted, or an acyl group, Z is H or a non water-solubilizing substituent, R 4 is H, alkyl or aryl which may be substituted, cycloalkyl or aralkyl, R 5  is H, optionally substituted alkyl, or is cycloalkyl or aralkyl, and R 4  and R 5  may form a heterocycle, e.g. piperidine, morpholine or piperazine, with the N atom, A is an optionally substituted phenylene or naphthylene radical, R 1 , R 2  and R 3  are each optionally substituted C 1 -C 4  alkyl groups, and X(-) is an anion, the trialkylammonium group being meta- or parato the azo link. They are prepared by diazotizing an amine containing a quaternary ammonium group which may be obtained by reducing the corresponding nitro compound and coupling to an appropriate coupling component or by quaternating the corresponding monoazodyestuff. The usual quaternating agents are used optionally in excess or in an inert organic solvent. The dyes dye or print tannined natural or regenerated cellulose fibres, silk, leather, acetate rayon, polyamides, acid modified polyesters, polyacrylonitrile or polyvinylidene-cyanide in yellow, orange, red and scarlet shades.
Patent GB-841365-A (GB)
Title: Improvements in or relating to a method of providing a protected printed surface in an underlay
Inventor: PIHL LENNART
IPC: B41M7/00
Filed: 1957-06-19
Abstract: 841,365. Printed paper; finishing. RESEARCH A. B. June 19, 1957, No. 19346/57. Class 100(2) A printed article such as pasteboard, printed with a steam-set ink, is coated with a layer having a lacquering action, said layer containing water to harden or dry the ink and itself being adapted to form a film on drying. The ink may comprise synthetic resins dissolved in glycols, and pigment. The coating layer may comprise artificial rubber products or plastics dispersed or emulsified in water, e.g. acryl nitrile polymers in a 35% water emulsion, and may be applied by a roller immediately after printing. The emulsion is then dried by an infra-red lamp and a further layer comprising a 50% water dispersion of a co-polymer of a polyacryl acid ester applied by a further roller. The material is then passed through a drier. Suitable dispersions for the layer to be applied to the ink are based on acryl-nitrilderivatives, or derivatives of styrene, polyacrylic acid or polyvinyl. Thickeners may be added, e.g. dispersions of paraffin waxes or microcrystalline waxes.
Patent GB-613744-A (GB)
Title: Improvements in and relating to steam superheater elements for use in locomotive andother smoke tube boilers
IPC: F22G7/06
Filed: 1946-06-29
Abstract: 613,744. Making superheaters. SUPER. HEATER CO., and MELHUISH, H. June 29, 1946, Nos. 19504/46 and 9672/47. [Class 83 (ii)] [Also in Group XIII] In a steam superheater for locomotive &c. boilers a return bend at the firebox end is made by welding small diameter tubes 1, 2 to form a union 8 and welding small diameter tubes 3, 4 to form a union 9, welding short tubes 10, 11 to the unions, connecting the tubes 10, 11 to a large diameter tube 5 and closing the open end 12 by swaging. In a modification the short tubes 10, 11 may be forge welded to the tube 5 and then butt or lap-welded to the unions 8, 9. To maintain high steam velocity in the return bend the tubes 10, 11 are of the same diameter as the tubes 1, 2, 3, 4. The return bend elements may be of forge weldable heat resisting tubing and the small tubes may be corrugated.
Patent GB-303209-A (GB)
Title: Machine for forming and assembling composite motion picture films
IPC: G03D15/00
Filed: 1927-07-22
Abstract: 303,209. Price, A. July 22, 1927. Drawings to Specification. Kinematograph apparatus.-A sprocket for use with composite films of the type described in Specification 198,731 has a reduced central part to accommodate the tongues in the composite film.
Patent GB-443078-A (GB)
Title: Improvements in weighing scales
IPC: G01G23/32
Filed: 1935-07-09
Abstract: 443,078. Weighing-apparatus. TOLEDO SCALE MANUFACTURING CO., Toledo, Ohio, U.S.A. July 9, 1935, No. 19601. Convention date, Oct. 10, 1934. [Class 143] In a weighing - scale having a load receiver superimposed above a housing containing an indicator, a virtual image of the indicator is reflected by a periscopic viewing device to a point above the load receiver. As shown in connection with a weighing scale used on a refrigerating counter 3 where the weightindicating opening 6 for the customer is normally obscured by the counter, a periscopic viewing means embodying two mirrors 21, 24 is attached to the scale housing by brackets 15, 11, 17. The lower mirror projects into the scale housing and the upper mirror is carried on a telescopic portion of the periscope and may be adjusted for inclination by a screw 32. The customer is thus able to view the weight indications through the window 36. The mirror 21 is wider at the end remote from the scale chart, and the mirror 24 is wider than the widest part of the mirror 21, the object being to permit the indication to be read from points not directly opposite the window 36.