baber/WOPTO huggingface dataset:
Patent GB-732488-A (GB)
Title: Improvements in or relating to phenthiazine derivatives
Filed: 1953-06-22
Abstract: The invention comprises compounds of formula <FORM:0732488/IV (b)/1> where A represents an alkylene group containing less than 3 carbon atoms, R1 represents hydrogen or a lower alkyl group, R2 represents a lower alkyl group or R1 and R2 together represent the residue of a heterocyclic nucleus, and X and Y are the same or different and consist of hydrogen, halogens, lower alkyl groups or lower alkoxy groups (the term "lower" implying the presence of up to four carbon atoms).  R1 and R2 are, for example, methyl, ethyl, propyl or butyl groups or together with the nitrogen atom piperidino or pyrrolidino groups.  X and Y are, for example, chlorine, methyl or methoxy. The compounds are prepared by reacting a phenothiazine compound of formula <FORM:0732488/IV (b)/2> where Q is hydrogen, a group -A-COOR (where R is a lower alkyl group of up to 4 carbon atoms), a group -A-COCl or the corresponding anhydride group with (when Q represents hydrogen) a compound of formula <FORM:0732488/IV (b)/3> where P is a halogen atom, and in presence of an acid binding agent such as an alkali metal (e.g. sodium) or a derivative thereof (e.g. sodamide, powdered sodium and potassium hydroxides, lithium hydride, sodium tertiary butylate, butyl lithium and phenyl lithium), or (when Q is other than hydrogen) with a primary or secondary amine of formula <FORM:0732488/IV (b)/4> preferably in an inert solvent.  The examples describe the preparation of methylamides of phenthiazine-10-acetic acid, 3-(phenthiazinyl-101)- and 3-(31-chlorophenthiazinyl-101)-propionic acid; 3-(phenothiazinyl-101)-propionic acid ethylamide; dimethylamides of 2- and 3-(phenthiazinyl-101)-propionic acid and (31-methyl - and 31 - methoxyphenthiazinyl - 101)-acetic acid; and 3 - (phenthiazinyl - 101) - propionyl - N - piperidine.  Phenthiazine - 10 - acetic ethyl ester is prepared from phenthiazine and ethyl bromoacetate and 3-(phenthiazinyl-101)-propionic acid methyl ester is prepared by heating a mixture of 3-(phenthiazinyl-101)-propionic acid in methanolic hydrogen chloride.  3 - (31 - Chlorophenthiazinyl - 101) - propionitrile is prepared from 3-chlorophenthiazine and acrylonitrile.  3 - (31 - Chlorophenthiazinyl - 101) - propionic acid is prepared by hydrolysing the corresponding nitrile with alcoholic caustic soda, and the corresponding methyl ester is prepared by heating this acid with methanolic hydrogen chloride.  3 - (Phenthiazinyl - 101) - propionyl chloride is prepared by heating the corresponding acid with phosphorus oxychloride.  3 - (Phenthiazinyl - 101) - propionic anhydride is prepared by treating an ether solution of the corresponding acid with pyridine and thionyl chloride.
Patent GB-971723-A (GB)
Title: Improvements in pneumatic control apparatus for boiler sootblowers
IPC: F28G15/00
Filed: 1962-05-05
Abstract: 971,723. Control of soot blowers. P. H. WILSON, and D. DE VOOGD. Aug. 6, 1963 [May 5, 1962], No. 17367/62. Heading F2N. Pneumatic control apparatus for soot-blowers comprises an indexing mechanism, a number of valves disposed to be actuable by the indexing mechanism and each connectible with a sootblower to start operation thereof, valve means operable to initiate an operable cycle of the mechanism, and conduit means connectible with the soot-blowers and the indexing mechanism for completing the operating cycle of the latter.
Patent GB-749355-A (GB)
Title: An improved method of forming patterns on textile fabric
IPC: D06Q1/00
Filed: 1954-06-14
Abstract: 749,355. Stencilling on fabrics. ORDAN, S. June 14, 1954, No. 17369/54. Class 100 (2). A method of forming a pattern on textile fabric consists of making a stencil by drawing the outline of the required design on a film of impervious material mounted on a backing sheet, e.g. of paper, cutting out the design in the film, causing the impervious film to adhere to a gauze screen, e.g. of silk, stripping off the backing sheet and mounting the screen on a frame, forcing thermo-setting paste through the stencil on to the fabric and heating to set the paste. The film 3, Fig. 4, is applied to the screen and caused to adhere by means of a hot iron pressed against the paper backing 4. In Fig. 4, the backing is shown being stripped off to leave the film with the cut-out design 6 securely adhered to the screen 7. The screen is then attached to a frame 8, Fig. 8, e.g. by drawing pins and the frame 8 is secured e.g. by wing nuts 12 to a carrier frame 9 hinged to a base 10. Alternatively, the silk screen may be mounted over an aperture in a larger impervious sheet. The textile fabric 11 is supported on the base and the paste forced through the screen by a squeegee 13. A continuous length of fabric may be printed by moving it under the screen in steps, marks being provided if desired to assist register. A thick deposit of paste may be applied, e.g. 2 or 3 times the thickness of the fabric, the paste being afterwards solidified by heat. The printing paste may be coloured by the addition of pigments or it may be made of any desired consistency, e.g. by the addition of white paint powder. After printing, a metallic powder or a powder of fibrous or other materials may be applied to the paste before drying, e.g. by spraying. This changes the colour or surface texture of the design. The paste deposit may be sufficiently thick to be heat resistant and allow the finished article to be used as a table mat.
Patent GB-496411-A (GB)
Title: Improvements in and relating to automatic electric regulators
IPC: G05B11/01
Filed: 1937-06-22
Abstract: 496,411. Automatic control systems. SOMERVILLE, T. B., and METROPOLITANVICKERS ELECTRICAL CO., Ltd. June 22, 1937, No. 17393. Drawings to Specification. [Class 38 (iv)] Electromotive force &c.-In an automatic regulator for maintaining at any desired constant or controlled value a condition of any electrical, steam, mechanical or other apparatus and wherein the regulator controls the current in an electrical circuit which governs the regulated quantity, the circuit comprises one or more elements of non-linear resistance material wherein the voltage across such element is the product of the current therein to a power not greater than 0À4 and a constant or nearly constant factor. Preferably the material is that known under the Registered Trade Mark " Metrosil," the index or power having a value from 0À2 to 0À35, which is a composition of ball clay, carborundum and graphite or similar substances and is ceramic in nature. In a voltage . regulator for dynamo-electric machines wherein resistance elements in the excitation circuit are periodically short-circuited the number of short-circuiting contacts and their " duty " are reduced by using a smaller number of elements of the kind referred to. In cases in which a rheostat is progressively varied a non-linear element is connected in series with it to reduce the size and range of variation of the rheostat.
Patent GB-1064771-A (GB)
Title: Electrolytic recording medium
IPC: B41M5/20
Filed: 1964-04-28
Abstract: An electrolytic recording medium comprises a sheet, e.g. of paper, impregnated with an electrically conducting solution containing a sulphoxylate or bisulphite addition salt of an aldehyde.  The metal in the salt is an alkali metal, zinc or cadmium.  Aldehydes whose derivatives are referred to are formaldehyde, acetaldehyde and benzaldehyde.  The solution may contain as an electrolyte an alkali-metal or ammonium nitrate or sulphate.  It may be brought to a suitable pH, e.g. between 7 and 14, by the addition of sodium hydroxide, or may be buffered with sodium carbonate and bicarbonate or sodium monohydrogen phosphate. When this medium is used in electrolytic recording with an anode of e.g. silver, silver alloy, copper or iron, metal from the anode is dissolved but immediately reduced again to free metal which forms a mark on the paper.
Patent GB-204748-A (GB)
Title: Improvements in and relating to milk churns
IPC: B65D55/16
Filed: 1922-06-26
Abstract: 204,748. Skidmore, E. G., and Skidmore, E. G. June 26, 1922. Lids.-The lid of a milk churn seats on a head 8 on the mouth ring 6 and carries a wedge piece 17 adapted on turning the lid to engage and become jammed in a groove 16 formed inside a lug 15 on the mouth ring, the parts being loosely hinged together by a ring 14 held in slotted lugs 13, 15 on the lid and mouth ring respectively. Both parts have eyed lugs through which, when in register, a padlock can be passed. The top of the lid has undercut recesses 11 for the reception of address labels &c. and a projection to facilitate handling. The mouth ring is applied to the body by being rolled over and under a head 5 on the body.
Patent GB-560366-A (GB)
Title: Improvements in or relating to means for accurately spacing articles on conveyors
IPC: B65H29/16
Filed: 1942-12-11
Abstract: 560,366. Delivery apparatus. IGRANIC ELECTRIC CO., Ltd., and RAPLEY, H. H. Dec. 11, 1942, No. 17670. [Class 100 (i)] [Also in Group XXX] A conveyer which is especially applicable to the delivery of printed sheets from a press, but is applicable generally to the conveying of articles, is constructed with a series of spacing stops 10 which travel beside the conveyer 2 in substantially the same direction. As applied to a machine in which an S-fly 3 receives sheets from folding rolls 1, an intermediate conveyer belt 6 is arranged between the S-fly and the belt 2, and the stops 10 are carried on chains 7 moving over pulleys 8 and a guide pulley 8a, and driven at the same speed as the belt 2 but at a less speed than the S-fly and the conveyer 6, so that the sheets from the S-fly overtake the stops 10, and are delivered by the conveyer 2 in regular overlapped condition. The chains 7 are driven from the shaft 4 of the S.fty, and the drive may be similar to that described in Specification 539,126 so that the spacing of the sheets can be adjusted while the device is in operation. To prevent damage to the machine if jamming occurs between the parts 5, 6 or 2, 7, the pulleys of the conveyers 2, 6 are mounted on a frame 11 pivoted at 14, and trigger levers 33, 34 are depressed respectively if jamming occurs at either of the positions specified, and these levers operate a lever 37 connected by a Bowden wire 38 to a sliding cam 29, Fig. 3, which releases a pawl 22 normally acting to hold the lower end of the frame 11 in a raised position by controlling a ratchet 21 on a shaft connected by worm gearing 20, 19 to shaft 18 which controls the position of lifting chains 15 attached to the frame 11. When the pawl is released, the frame 11 drops and the conveyers 2, 6 move out of operative position. Specifications 508,227, and 520,765 [Group XXX], also are referred to.
Patent GB-273767-A (GB)
Title: Improvements in or relating to submarine mines
IPC: F42B22/08
Filed: 1927-07-04
Abstract: 273,767. Ginocchio, M. July 5, 1926, [Convention date]. Mines, marine.-Relates to mines a, a interconnected by a floating cable b and provided with reaction surfaces e, e and consists in attaching the cable b to a transverse rod c on the mine in such a way that when the cable is pulled by a passing ship and turns to a certain angle relatively to the axis of the mine, the cable slips from the centre to one end or the other of the rod c, and this ensures the inward swing of the mine to strike the ship. The slip of the cable along the rod also unlocks the firing mechanism.
Patent GB-763289-A (GB)
Title: A wire-stretching and cutting appliance for use in connection with the manufacture of ducted, porous metal compacts
Inventor: OLIVER DONALD ARTHUR
IPC: B21F9/00
Filed: 1954-06-17
Abstract: 763,289. Making wire articles; making turbine blades; stretching; shearing. BIRMING- HAM SMALL ARMS CO., Ltd. June 15, 1955 [June 17, 1954], No. 17772/54. Classes 83 (2) and 83 (4). A wire-stretching and cutting appliance comprises two parallel members 3, 11, each with a row of upstanding studs 8, 10, respectively, round which wire 19 may be wound to pass alternately from one member to the other, one member, 3, being movable away from the other to give a permanent stretch to the wire, means to move the one member from the other, a pair of fixed cutting blades 25 parallel to and inside the respective rows of studs, and a pair of movable guillotine blades 24 co-operating with the fixed blades to cut the stretched wire into lengths. The blades 24 are pivoted at 21 and are moved down by a handle 23. The studs 8, 10 are grooved to guide the wire which is secured at its ends by pinch studs 18, 20. The member 11 with its studs 10 may be moved from the member 3 by rocking the member 11 about end pivots 12 by levers 14. Alternatively the member 11 may be slidable and moved by screw, cam or rack and pinion means. The wire may be stretched over a curved bed 42, Fig. 10, to form curved lengths 47. To form bent lengths of wire the wire may be stretched around pins 48, Fig. 11, which may be used in conjunction with the curved bed 42. In forming a ducted porous gas turbine blade stretched straight and bent cadmium wires 54, 51, respectively, Fig. 12, are positioned in a metal powder compact and the cadmium distilled off to leave ducts when the compact is sintered. The compact is then machined, and passages 57, 59 are cut communicating with the ducts left by the wires.
Patent GB-236955-A (GB)
Title: Improvements in freezing cells
IPC: F25C1/22
Filed: 1925-07-10
Abstract: 236,955. Soc. Alsacienne de Soudure AutogÞne A. R. L. July 10, 1924,. [Convention date]. Void [Published under Sect. 91 of the Act]. Tanks.-The bottom 1 of a freezing- cell is made with a flange 2 of U-section for the reception of the lower edge of the side walls 3 of the cell, the joint being made secure by punching the flange and walls at intervals 4. The bottom andwalls are separately galvanised before assembly and a filling 5 of zinc is provided to close the joint on both sides.
Patent GB-1313468-A (GB)
Title: Asphalt paving machines
IPC: E01C19/42
Filed: 1971-05-28
Abstract: 1313468 Asphalt paving machines; releasable fastenings SCHNEIDER-SIMPSON INC 28 May 1971 [15 June 1970] 17871/71 Headings E1G and E2B [Also in Division F2] Hollow box section extension units for the screed bar of an asphalt paving machine are releasably interconnected by links 51-54 which pass round rotatable cylinders 61-64 mounted on axially offset shafts 35 and 36 on one unit and round fixed spigots 41-44 in the opposite end of the other units, the lower links first being positioned, then a temporary coupling made by hinged strap plate 74 onto a stud 76, next the upper links are positioned and finally the shafts 35 and 36 are rotated to press the units together. The shafts are held in the tensioned position by locking studs 47 and 48 passing through holes in plates 37A and 38A mounted thereon and into holes 49 in the top of the unit. Each unit comprises to interconnected channels 30 and 31. Adjusting devices 81-84 are provided for levelling the lower face of the screed bar. The extension units have opposite arcuate edges 30R and 30F so that they can be used either side of the main bar to minimize wear. The units may be attached to the main bar by a small unit corresponding to the back end of a whole unit, or a whole unit (per se) which is welded to the main bar. The final extension unit has an end plate bolted thereto. Hot gases are circulated through the units to heat the asphalt.
Patent GB-580979-A (GB)
Title: Improvements in or relating to textile materials of high strength
IPC: D06M13/188
Filed: 1942-12-18
Abstract: Linen material is subjected to the action of a solution of a carboxylic acid of molecular weight at least 200, and the anhydride of a lower fatty acid or a substituted lower fatty acid under conditions such that the weight of the material is increased as a result of esterification by 1-5 per cent, and such that the esterified groups are distributed uniformly throughout the material. The dry and wet strength of the linen material is increased by the treatment.  Preferably, the carboxylic acid is a straight chain fatty acid, e.g. stearic acid.  The treatment may be carried out by using an esterifying bath comprising a dilute solution in an organic solvent of the higher acid and the anhydride of the lower fatty acid, e.g. acetic anhydride.  The molecular proportion of the higher acid to the anhydride is preferably not less than unity.  The solvent may be xylene or other aromatic hydrocarbon.  Concentrations of acid and anhydride together of about 5-10 per cent may be used.  The treatment may be carried out at 100-150 DEG  C. for a period of about 2 hours. The treated linen materials may be washed free from esterifying medium by means of hot carbon tetrachloride.  The treatment improves the lustre and resistance to creasing, and it may render the materials waterproof.  The treated material may be used for or in making sail cloths and aircraft fabrics.
Patent GB-401412-A (GB)
Title: Improvements in stays for use with weighing apparatus and the like
IPC: G01G21/00
Filed: 1932-06-27
Abstract: 401,412. Weighing-apparatus. AVERY, Ltd., W. & T., and TIMSON, W., Soho Foundry, Birmingham. June 27, 1932, No. 18033. [Class 143.] Links and stays.- A stay for use in weighing-apparatus and testing - machines comprises a central section 5 provided at each end with a pivotally-mounted, cranked extension 7 carrying a knife-edged locking-plate 9, the cranked extension and locking-plate being adapted for cooperation with a knife-edged plate 10 secured to a dependant leg of the weigh-beam (not shown). Each extension is pivoted on a headed rivet 6 and has its pendant arm cut to inverted T-shape. The locking-plate is secured to the extension by screws 8 and is formed on its underside with a knife-edge 9a that bears on the upper surface of the plate 10. This plate is provided with three aligned knifeedges, the outer 10<1>, 10<3> of which bear against the inner surface of the locking plate, while the central edge 10<2> abuts the outer surface of the constricted part of the cranked pendant arm of the extension.
Patent GB-933007-A (GB)
Title: Electro-magnetic wave absorbers
IPC: H01Q17/00
Filed: 1961-05-17
Abstract: 933,007. Radio wave absorbers. SIEMENS & HALSKE A.G. May 17, 1961 [May 17, 1960], No. 18034/61. Class 40 (7). A device for absorbing radiated electromagnetic energy includes a lattice formed of resistive material extending in the direction of propagation of the incident energy with its interstices filled with a material whose dielectric constant # is greater than unity and increases in the direction of propagation in steps or continuously, e.g. exponentially. Preferably the permeability Á of the dielectric material is greater than that of air and is constant throughout the material but alternatively the permeability may increase continuously or in steps in the direction of propagation. In the latter   case the ratio #Á/# may decrease in the direction of propagation but it is preferred to maintain said ratio constant at a value equal to #Á 0 /# 0  where Á 0  and # 0  are the permeability and dielectric constant of a vacuum. A lattice of absorbent material may be formed by providing such material on the surfaces 6a, 7a, 8a, normal to a wall 5 of blocks 6, 7, 8, of dielectric material which form successive layers in front of the wall. The surface of the area parallel to the wall of each block in a layer may be a fraction, e.g. a quarter, of the similar surface of a block in an adjacent layer farther from the wall so that the amount of absorbent material increases in steps in the path of incident energy. The resistance of the absorbent material may decrease in steps as the wall is approached and the dielectric material may be of foamed material, e.g. rubber, polystyrene or polyurethane, containing fillers so that the dielectric constant e and possibly the permeability Á increases in either discrete steps or continuously (e.g. exponentially) as the wall is approached. The increasing values of e and Á are stated to result in a shorter depth of the absorption path than in known " honeycomb " absorbers and the depth of the absorption path may be further shortened by placing a network of conductive fibres or wires on the surface of the wall.
Patent GB-363332-A (GB)
Title: Improvements in or relating to friction facings
IPC: F16D69/02
Filed: 1930-06-12
Abstract: 363,332. Moulding clutch friction faces by extrusion. RAYBESTOS-MANHATTAN, Inc., 1427, Railroad Avenue, Bridgeport, Connecticut, U.S.A.-(Assignees of Repony, D. ; 365, Clifton Avenue, Passaic, New Jersey, U.S.A.) June 12, 1930, No. 18043. Convention date, May 8. Void [Published under Sect. 91 of the Acts]. [Class 87 (ii).] A friction facing material for clutches and other articles is made from asbestos fibre with a binder and fillers, the mixture being brought to a malleable consistency and then formed into a sheet all faces of which are trowelled s i m u 1- taneously under heavy pressure. Suitable binders which may be used are rubber, resin, oil or asphalt, and suitable fillers are pyrites, graphite, litharge, and sulphur. When the materials are mixed to the desired consistency the mixture may be inserted in a cylinder 1 having a piston 2 which is operated so as to extrude the material out of a slot 3 in sheet form. The sheet is then cut into friction rings which are dried, first in air and afterwards in a vacuum drier with the aid of heat, and afterwards cured or vulcanized in a mould. The latter may be provided with projections to form rivet holes in the rings.
Patent GB-121180-A (GB)
Title: Improvements in and relating to Apparatus for Purifying Water and other Liquids.
Inventor: WILSON JAMES
IPC: C02F1/68
Filed: 1917-12-05
Abstract: 121,180. Wilson, J. Dec. 5, 1917. Addition to 7029/11. Mixing liquids in flow in proportionate quantities.-In apparatus of the kind described in the parent Specification, the stirrer r in the reagent tank is actuated by a second tipping-bucket p, which receives liquid by a perforated pipe v from a tank w of apparatus a of the kind described in Specification 13362/08 for dividing the flow of liquid into proportionate streams. Excess of liquid from the tank w passes by a pipe x into the main mixing-tank.
Patent GB-260916-A (GB)
Title: Improvements in gasfilled electric incandescent lamps
IPC: H01K3/30
Filed: 1926-07-20
Abstract: 260,916. General Electric Co., Ltd., (Assignees of Patent-Treuhand-Ges. f³r Elektrische Gluhlampen). April 14, 1926, [Convention date]. Residual gases; caps.-A. lamp for currents of high intensity, for example, for optical projection apparatus, comprises an open-necked bulb h placed on or removably secured to a plate or cap a which supports leading-in wires c, d and inlet and outlet tubes k, o whereby the bulb may be continuously rinsed with inert gas from a cylinder n during use, and the lamp may be readily taken apart for renewing its filament or bulb.
Patent GB-335235-A (GB)
Title: Improvements in and relating to refrigerating packages
IPC: B65D81/18
Filed: 1929-06-13
Abstract: 335,235. Thurston, A. P., (Dryice Equipment Corporation). June 13, 1929. Packing ice-cream.- A refrigerated package comprises a corrugated cardboard &c. carton 1 having a spaced corrugated cardboard lining 5 within which is a paper bag 8 containing a metal &c. vessel 9 for icecream &c. and a block 13 of carbon dioxide ice. The gas evaporating from the ice oozes through the mouth of the bag and flows downwardly between the bag and the lining and upwardly between the lining and the carton from which it escapes to the atmosphere. The paper bag may be dispensed with. Specification 334,939 is referred to.