baber/WOPTO huggingface dataset:
Patent GB-736304-A (GB)
Title: Improvements in or relating to cellulose ethers
IPC: C08B11/20
Filed: 1952-04-15
Abstract: Cellulose ethers insoluble in organic solvents are bleached by contacting a slurry of the ether in an organic solvent with a water-soluble inorganic chlorite, when the pH of the slurry is below 6, or with both a water-soluble inorganic chlorite and a water-soluble inorganic hypochlorite when the pH of the slurry is at least 6.  The ethers are soluble in water, or in aqueous solutions of alkali metal hydroxides, or in both media.  The organic solvent is inert to both chlorites and hypochlorites under the conditions of the process, is miscible with water and is capable of swelling the cellulose ether.  The cellulose ether may be alkyl cellulose (e.g. ethyl, propyl or butyl cellulose), hydroxyalkyl, e.g. hydroxyethyl cellulose, carboxyalkyl cellulose (e.g. carboxymethyl, carboxyethyl, or carboxybutyl cellulose), carboxyalkyl hydroxyalkyl, e.g. carboxymethyl hydroxyethyl cellulose; or sulfoalkyl cellulose ethers, e.g. sulfoethyl cellulose.  Cellulose ether-esters are also included within the scope of the invention, e.g. acetylated hydroxyethyl cellulose, the ether substituent being the dominant substituent.  In the case of cellulose ethers such as carboxymethyl cellulose and carboxymethyl hydroxyethyl cellulose, to which the invention is particularly applicable, the bleaching agents of the invention may be added to the reaction mixture instead of the ethers being first recovered before treatment.  The slurrying media employed may be lower aliphatic alcohols such as methanol, ethanol, isopropanol, or tertiary butyl alcohol; dioxane, tetrahydrofuran, or the diethyl ether of ethylene glycol.  The chlorite may be an alkali or alkaline earth metal chlorite or ammonium chlorite and the hypochlorite may be an alkali metal or alkaline earth metal hypochlorite.  The pH of the slurrying medium may be adjusted by means of acetic acid, hydrochloric acid or phosphoric acid.  In an example, 100 grams of carboxymethyl cellulose is wetted with isopropanol, slurried in 1300 cc. of 85 per cent methanol at room temperature and 30 grams of 10 per cent aqueous sodium chlorite solution added.  The pH is adjusted to 4.0 with HCl, the slurry agitated, its pH adjusted to 8.0, the carboxymethylcellulose filtered off, washed with 85 per cent methanol and dried.  In another example carboxymethylcellulose wet with isopropanol is similarly treated except that aqueous sodium hypochlorite solution is also present and the pH adjusted to 6.5 to 7.5 with acetic acid.  Specification 736,303 is referred to.
Patent GB-1042051-A (GB)
Title: Improvements in and relating to bottle filling
IPC: B67C3/06
Filed: 1963-03-11
Abstract: 1,042,051. Bottling. GEO. J. MEYER MANUFACTURING CO. March 11, 1963 [Sept. 17, 1962], No. 9487/63. Heading B8T. A filler head for a counter-pressure bottle filling machine comprises a filler bowl 10 adapted to contain liquid, a gas valve 24, a liquid valve 20, and choke means including a choke member 78 movable between a first position in which it will not interfere with the flow of liquid from the bowl into a bottle and a second position in which it will restrain flow from the bowl into the bottle. Initially all the above-mentioned valves are closed and a bowl 10 on the machine contains liquid up to a level 12, and pressurized gas in the space 14 thereabove. In operation, a bottle 22 is placed in sealing engagement with a seal member 58 on the head so that a vent tube extension 64, with ports 66, extends into the bottle neck, the extension being carried by a vent tube 48 threaded to an upper tube member 68 which supports the gas valve 24. This valve is next opened by an arm 102 on a pivot 104 raising a shoulder 98 and so opening ports 88 to allow gas to flow into the bottle via tubes 68, 48 and 64, from space 14. When the pressures in the bottle and bowl 10 are equal a valve member 52 is raised from its ribbed valve seat 54, and so opens the liquid valve 20, thus allowing liquid to flow into the bottle under gravity. The gas from the bottle which is expelled by the inflowing liquid returns via tubes 64, 48 and 68, and valve 24 to the bowl 10. The pressure of the liquid whilst flowing holds the choke member 78 in its open, i.e. lowermost, position, but when the liquid in the bottle starts to cover ports 66 this pressure is reduced, and the choke member 78 rises under the action of a spring 84 so that a flange 82 at its lower edge contacts the seal member 52 of the valve 20 and thus restrains the liquid flow. The gas valve 24 and the liquid valve 20 are then lowered and closed by the pressing downwards of arm 102 on a shoulder 100. A filling height valve member 120 carried on a stem 122 is then raised from its seat 124 by rotating a valve actuator stem 106, with a cam portion 130 and notch 132, and the opening so produced allows gas, e.g. CO 2 , from a source 126 to enter the upper region of the bottle. This gas is at a higher pressure than that in the bowl 10, and so forces any excess liquid and any air trapped above the ports 66, from the bottle through stem 48 and check valve 27 into the bowl. The check valve 27 has a disc 144 which is lifted by the excess pressure to uncover apertures 142 and allow liquid and gas to pass therethrough. The liquid runs down the inside of a hood 145 into the liquid of the bowl, and the gas escapes through apertures 148 in the hood into the space 14. The fill height valve is then closed by further rotation of stem 106, and this member is then pushed inwards against the action of a spring 118 to remove valve member 114 from its seat 116 and so shift the bottle. After shifting the stem returns to its original position and the filled bottle is removed from the machine.
Patent GB-787960-A (GB)
Title: Improvements in or relating to the treatment of light metal
Inventor: UNSWORTH WILLIAM
IPC: C22B9/02
Filed: 1955-04-01
Abstract: 787,960. Refining aluminium, magnesium and their alloys. MAGNESIUM ELEKTRON, Ltd. March 28, 1956 [April 1, 1955], No. 9524/55. Class 82(1) A process for treating molten light metals for the removal of undissolved particles (e.g. zirconium and manganese) wherein the metal is made to flow, non- turbulently, through a device providing a large number of narrow, tortuous passages, the overall direction of flow being vertical. Such a device may be made of compressed steel turnings which may be #-“ inch wide and be compacted to a thickness of #-2 inches. The porosity may be such that one litre of 0.13 c.g.s. units viscosity oil will pass through in 50-100 seconds. The average width of the passages may be one hundred or more times that of the particles retained. Fig. 1 indicates a compact A mounted on a rod B between spoked wheels C. In Fig. 2 the molten metal to be treated flows down the launder F to a tapered tube G, through a compact A into a reservoir J and thence via a control valve to a casting mould. In a modification the metal is caused to pass upwardly through the compact. An inert gas (e.g. SO 2 ) may be used and beryllium may be added to the alloy to minimize oxidation. Specifications 594,152 and 652,250 are referred to.
Patent GB-678700-A (GB)
Title: Improvements in or relating to braking apparatus for winch drums or the like
Inventor: GOEDE DIRK JOHANNES
IPC: B66D5/00
Filed: 1951-04-24
Abstract: 678,700. Winch drum brakes. MIJ. TOT VERWERVING EN EXPL. VAN DAVITOCTROOIEN DAVIT-CO. N. V. April 24, 1951, No. 9554/51. Class 103 (i). In a brake for winch drums or the like, the shoe 2, Fig. 1, is rotatably mounted upon the eccentric surface 7 of a central spindle 6 through which passes the shaft of the winch and brake drum. The shoe 2 has a peripheral surface of nearly the same curvature as that of the brake drum and since it rotates about the eccentric surface 7, the centre of which is located below the centre of the drum, it tends to wedge against the drum and prevent rotation thereof in a direction opposite to that shown by the arrow in Fig. 1. The brake is applied by depressing a lever 9 which rotates the centre spindle 6 and causes the shoe 2 to move radially outward a small distance into contact with the drum. To prevent actual jamming between the shoe and the brake drum a pin 5 is provided on the shoe which abuts against the upper surface 16 of the winch housing 20, the depression of the lever 9 being limited by a stop 18. The downward force of a spring 17 acting on the lever 9, the weight of the lever and shoe and the friction force between the shoe and drum combine to produce a force sufficient to lift the shoe when the drum is rotating in. the free direction shown by the arrow, but the shoe is prevented from turning through an angle greater than 90 degrees by the lever stop 18 so that it rests in contact with the drum wall without exerting any substantial braking effort in this direction. In Fig. 5 the device is shown adapted for preventing rotation in either direction as required. In this case it is necessary to combine with the brake and shoe shown in Fig. 1, another shoe part 2<SP>1</SP> which is its reverse image, so that when the shoe is rotated through 180 degrees to the position shown dotted, it prevents rotation in the direction of the arrow of Fig. 1.
Patent GB-401267-A (GB)
Title: Car and trailer group for camping
IPC: B60P3/32
Filed: 1932-04-04
Abstract: 401,267. Motor vehicles. LEVOYER, A. M. L., 14, Rue de Lanneau, Paris. April 4, 1932, No. 9680. Convention date, April 3, 1931. [Class 79 (iii).] A car and trailer group for camping comprises a rear end platform on the car intended to receive the front end of the trailer which can be disconnected to form a oaravan, the car with the addition of a ho od then constituting a separately movable car. The trailer 3 is supported at its front end upon a platform 2 on the towing vehicle 1 and is provided with steerable wheels 4. The securing means between the car and trailer may comprise hooks 7 and a bellows arrangement 8.
Patent GB-535646-A (GB)
Title: Instrument for testing the flatness of glass or other reflecting material
IPC: G01B11/30
Filed: 1940-06-03
Abstract: 535,646. Optical testing apparatus. KODAK, Ltd. June 3, 1940, No. 9686. Convention date, Sept. 13, 1939. [Class 97 (i)] Apparatus for determining the departure from flatness of a reflecting surface comprises a cylindrical lens of low power located immediately in front of the surface, a light source directing a beam of light through the lens on to the surface, and a viewing screen situated at the focus of the beam reflected by the surface and passed back through the lens. The apparatus is also useful for determining the departure from parallelism of two reflecting surfaces such as the opposite faces of a sheet of glass. Preferably the light beam incident on the lens is collimated, and the central longitudinal strip of the lens is masked so that light passes only through the marginal zones. For identifying the causes of the effects observed on the screen, shutters may be provided to obscure either zone at will; or apertured masks may be located in the marginal paths, preferably masks with complementary apertures ; or colour screens, preferably of complementary colours may be similarly located. The viewing screen may carry a system of parallel lines for estimating the extent of said departures. The apparatus shown in Fig. 4 comprises a table 37 supporting a casing containing a lamp 11 and collimating lens 12 directing light on to a cylindrical lens 13 resting over an aperture in the base of the casing and provided with the aforementioned mask 18. The specimen 14 under test, resting on a wheeled carriage 39 on the table, reflects the light back through the lens 13 and thence to a reflector 15 whereby the rays are deflected horizontally to a viewing screen 16 provided with a system of horizontal lines. Hinged shutters 28 are provided for masking either of the marginal beams passing through the lens 13. The appearance presented by the astigmatic image of the source 11 formed on the viewing screen 16 when the reflecting surface or surfaces 14 exhibit various defects are discussed in the Specification.
Patent GB-562755-A (GB)
Title: Manufacture of new colouring matters
IPC: C09B23/04
Filed: 1942-07-13
Abstract: Metal complexes are produced by reacting a compound of formula <FORM:0562755/IV/1> where RI, RII, RIV, and RV stand for aryl radicals (e.g. of the benzene or naphthalene series) substituted or not, the same or different, where RIII and RVI each stand for H or for a non-reactive substituent, the same or different (e.g. an aryl, or acylamino radical), and where A stands for N or CR (R being H or an alkyl, aralkyl, or aryl radical or a heterocyclic residue), and a salt of a metal of the group consisting of copper, zinc, nickel, cobalt, chromium, and cadmium. Compounds specified are 2 : 21 : 4 : 41-tetraphenyl-aza-dipyrromethine, 2 : 21 : 4 : 41-tetraphenyl - aza - dipyrromethine disulphonic acid, 2 : 21 - diphenyl - 4 : 41 - di - (p-methoxy - phenyl)-aza-dipyrromethine, 2 : 21 : 4 : 41-tetraphenyldipyrromonomethine, 2 : 21 : 4-triphenyl-41 - (p - methoxyphenyl) - dipyrromonomethine, and 2 : 21 : 4 : 41 - tetraphenyl - meso - phenyl - dipyrromonomethine.  The metal salts may be acetates, sulphates, chlorides, phosphates, or dichromates. Copper acetate, copper sulphate, zinc acetate, chromium fluoride, cobalt sulphate, cobalt acetate, and nickel acetate may be used.  The reagents may be heated together by themselves or in presence of a solvent from one or both.  Dyeings of water-soluble derivatives of the compounds (e.g. sulphonic acid derivatives or salts of their amino-derivatives), e.g. on wool, may be treated with aqueous solutions of the metal salts.  In example 1, 2 : 21 : 4 : 41-tetraphenyl-aza-dipyrromethine, copper acetate, and n-butanol are boiled together.  Corresponding complexes may be formed from cobalt, nickel, and zinc acetates.  In example 2, the procedure is similar using 2 : 21 : 4 : 41-tetraphenyldipyrromonomethine.  In example 3, the disulphonic acid derivative of 2 : 21 : 4 : 41-tetraphenyl-aza-dipyrromethine is dyed onto wool from an acid dyebath, and the dyed wool is heated in an aqueous solution of copper sulphate at 80-90 DEG  C.  In example 4, wool is dyed in a neutral dyebath with the compound obtained by reacting 2 : 21-diphenyl-4 : 41-di-(p-dimethylaminophenyl)-aza-dipyrromethine with methyl iodide, and is then heated in an aqueous solution of copper acetate.  In example 5, 2 : 21 : 4 : 41-tetraphenyl-meso-phenyl-dipyrromethine is heated with copper acetate and n-butanol.  Specifications 554,101 and 562,754 are referred to.  The Provisional Specification refers also to compounds in which RIII and RVI may be alkylamino or benzylideneamino radicals, and to the use of finely divided metals in place of metal salts.
Patent GB-1197152-A (GB)
Title: Mitigating Russetting of Apples
Inventor: DAUGUET PIERRE
Filed: 1969-02-24
Abstract: 1,197,152. Composition for mitigation of russeting. ESSO CHIMIE. 24 Feb., 1969 [22 Feb., 1968], No. 9732/69. Heading ASE. A composition for mitigating blemishes on the skin of fruit comprises sulphur, kaolin and a borate such as sodium pentaborate, and optionally a liquid vehicle, e.g. water. Other active ingredients which may ibe present are arsenates, phenylacetic acid and zinc salts. The composition finds particular application for the prevention of russeting.
Patent GB-689106-A (GB)
Title: Hair dryer
Inventor: OZIAS BLAKE
IPC: A45D20/22
Filed: 1950-04-20
Abstract: 689,106. Hair driers. FERGUSON ELECTRO MECHANICAL DEVELOPMENTS, Ltd. April 20, 1951 [April 20, 1950], No. 9759/50. Class 81 (ii). A hood type hair drier has the casing formed in two parts and the motor and heaters supported as a unit in the lower part. The lower part of the casing 1 has a bracket 22 by means of which the drier is pivotally supported on a pedestal and the motor, fan and heater unit is mounted on a frame 11 secured to it. The rear part of the hood 15 is held to the lower part by a locating stud 12 and a clamping bar 26. Air additional to that being recirculated may be admitted through a port 17 having an adjustable damper 18 actuated by an external knob 21.
Patent GB-143366-A (GB)
Title: Improvements in or relating to cooling means for internal combustion engines
IPC: F02F1/06
Filed: 1919-04-16
Abstract: 143,366. Ayton, R., and Sheppard, G. A. April 16, 1919. Cylinders, construction of, and cooling; crank chambers. - The cylinder comprises a relatively large mass of metal of high specific heat and good heat conductivity, which may be coated with another metal, such as silver, which conveys the heat quickly to the surrounding air. The mass of metal may be aluminium, and it may have an iron liner, or its working surface may be hardened. The crank chamber may be integral with the cylinder and thus serve to form part of the mass; it may be lined with, and the crankshaft bearings surrounded with, insulating- material. The metallic mass may also take the form of a thick wall as shown at B and B<x>, Fig. 2, with longitudinal buttresses B<2>, B<3> which may serve as pipes. The liner may be tapered and be secured by the cylinder cover, or the jacket may be slit longitudinally; and in both cases, the contact between the liner and jacket is secured by springs. The jacket may be cast on to the liner, and the surface of the liner electro-plated with copper and notched to secure good contact.
Patent GB-768488-A (GB)
Title: A device to aid respiration
IPC: A61F5/08
Filed: 1955-04-04
Abstract: 768,488. Respiratory devices. PRIAMI, P. April 4, 1955, No. 9784/55. Class 81(2) A nose clip for facilitating respiration comprises a thin resilient strip'of general U- shape, the middle portion of the length of which is in the form of an arc subtending an angle of more than 180 degrees and is flanked by a part of enlarged width which is inwardly bowed and an adjoining outwardly-extending arm, the enlarged part and the arm representing a limb of the U. The strip 1 is formed at its ends with enlargements 2 for gripping the nose septum. Outwardly bowed resilient arms 3 extend from the enlargements 2 and each arm 3 carries a its free end an oval loop 5 provided with claws 4 for carrying gauze or cotton wool which may be impregnated with medicinal substances. In use the arms 3 press the inner walls of the nostrils outwardly to keep the repiratory passages open.
Patent GB-594328-A (GB)
Title: Process and plant for manufacturing longitudinally corrugated cardboard and cross-corrugated cardboard and products obtained thereby
IPC: B31F1/28
Filed: 1945-04-19
Abstract: 594,328. Compound corrugated cardboard. SOC. CENTRALE DES USINES A PAPIERS CENPA. April 19, 1945, No. 9884. Convention date, Oct. 25, 1943. [Classes 96 and 140] Continuous-faced, longitudinally corrugated carboard is formed by transversely corrugating a continuous web B, Fig. 1, adhering it to a narrower continuous facing web f so that the corrugations extend as a marginal selvage d beyond the edge e of the facing web f ; cutting the compound web into equal sheets B, B', B<2> ... and securing them end to end so that the corrugations of the selvage portion of each sheet interlock with the corrugations of the next and so that successive facing sheets abut together. The longitudinally corrugated cardboard thus formed may be united with faced transverse corrugated cardboard A and with an additional facing sheet h. The two sets or trains of corrugating and pasting machinery &c. may be arranged at right angles to each other, or they may be parallel, but with the train which forms the longitudinally corrugated cardboard incorporating a turn-about conveyer for rotating the component sheets through a right angle before they are interlocked and adhered together. The turn-about conveyer may be preceded by an accelerating conveyer to increase the time-interval between delivery of the component sheets and may comprise one or more sets of conveyers which reciprocate vertically as well as rotate through right angles. If there be more than one set, the sheets are fed selectively to them. Sheets from the turnabout conveyer are stacked at 16, Fig. 7. Conveyer chains 32, 33 with runners 34 advance the sheets from the bottom of the stack, one or more oblique rubber castors aiding in interlocking the corrugations, whereupon the webs A, C and h are united as illustrated in Fig. 7.
Patent GB-659129-A (GB)
Title: Improvements in or relating to valves
IPC: F16K17/08
Filed: 1949-04-12
Abstract: <PICT:0659129/IV (a)/1> A valve situated between a source of fluid under pressure and the pumps leading to the spinnerets of a plant for manufacturing artificial textiles comprises inlet and outlet chambers 3, 4, respectively, a multi-apertured plate 8 covering the chamber 4, and a diaphragm 9 which, when seated on the plate 8, cuts off communication between the two chambers.  The chamber 4 is under vacuum and the diaphragm cuts off flow immediately the pressure is released from the solution entering chamber 3.  Chamber 3 may also be covered by the plate 8.  An apertured cover plate 11 serves to limit the amount by which the diaphragm can rise.  The plate 11 may be provided with a transparent cover for inspection purposes, or a separate inspection chamber 14 with transparent cover may be provided.
Patent GB-117079-A (GB)
Title: Improved Means for Automatically Stopping the Feed-motion of Machine Tools.
IPC: B24B49/02
Filed: 1918-06-17
Abstract: 117,079. Aktiebolaget Svenska Kullagerfabriken. June 20, 1917, [Convention date]. Driving and feed devices; gauges.-Consists in means for bringing into action an electric or mechanical device for stopping the feed-motion of a grinding or other machine when the work has been finished to gauge. Fig. 1 shows an electrical device for external work. A lever 3, 4 is brought by the adjusting means 12 below the centre of the work, so that it can just swing past when the work has been reduced to gauge. While the adjustment is being made, the lever may be held off the work by a hook 10. When the work is to gauge, the spring 8 swings the end 3 of the lever past the work and brings the hammer end 4 on to a contact piece 6 and presses it into contact with a lower piece and completes the circuit of an electric stop device for the feed-motion. Fig. 6 shows a modification for internal work, in which the end 3 of the lever bears on a second lever 15 carrying a roller 17 running on the work to be gauged. As shown in Fig. 3, wear of the end 3 of the lever may be reduced by shaping it to a curve struck from the centre of the pivot. In further modifications, a ball or a diamond forms the bearing end of the lever.
Patent HK-127396-A (HK)
Title: Optical fibre distribution arrangement
Inventor: MERLO CLIFFORD EDWIN
IPC: G02B6/36
Filed: 1996-07-18
Abstract: A distribution arrangement for optical fibre comprising a branched coupling array (1) and a plurality of splice organisers (2) for storing splices associated with connections to the coupling array. Each fibre connected to the array passes through a manifold block (8) that is provided with a plurality of capillaries extending to the splice organisers. Fibres from other parts of the network also pass through the manifold and into capillaries for conduction to the splice organisers where they are connected to a respective fibre from the coupling array. Preferably the array (1) has alternative winding routes for fibre tails extending from individual couplers within the array to facilitate multiple splice attempts. A preferred splice organiser comprises an enclosure into which coiled fibre loops are introduced and permitted to expand so that they are retained by the resilience of the fibre itself.