baber/WOPTO huggingface dataset:
Patent GB-911641-A (GB)
Title: Process for the isolation of chlorinated or sulphochlorinated polyolefines
IPC: C08F8/34
Filed: 1959-05-11
Abstract: Chlorinated or sulphochlorinated solid homopolymers or copolymers of aliphatic olefines are isolated from their solutions by introducing the solution into hot water at 40 DEG -100 DEG C. in the presence of a water-insoluble solid inorganic compound of a metal or semi-metal of Group II-V of the Periodic Table, which compound has a large surface area, is at most faintly coloured and is preferably capable of swelling in water, and in the presence of an organic surface-active compound containing no saltforming carboxyl groups, while continuously distilling off the solvent and discharging the precipitated chlorinated or sulphochlorinated polyolefine immediately after its precipitation from the zone of precipitation.  The polymers may be polyethylene, polypropylene, polybutylene or polypentene or copolymers of ethylene, propylene, butylene or pentene, e.g. ethylenepropylene, ethylene-butene or ethylene-propylene-butene copolymers, and may be made by the high or low pressure polymerization process.  The inorganic compound may be an oxide, hydroxide, carbonate, sulphate or silicate, for example, magnesium carbonate, aluminium hydroxide, aluminium oxide, aluminium silicate or hydrosilicate, bentonite, barium sulphate, silicon dioxide, silica gel, lead oxide, attapulgite, antimony oxide or titanium dioxide. The organic surface-active agent may be dibutyl-naphthalene or dodecyl-benzene sulphonic acids, dodecyl-benzyl-dimethyl-ammonium chloride, an alkyl sulphonate, octadecenyl-trimethyl ammonium chloride, didodecyl-dimethyl ammonium chloride, anoleyl-or dodecyl-aminoacetate, oleyl-b -hydroxyethane sulphonic acid, oleyl-methyltaurine, or hydroxyethylated alkyl phenols, e.g. diisobutyl phenol, octyl phenol, nonyl phenol, triisobutyl-b -naphthol, or other hydroxyethylated compounds such as hydroxyethylated naphthol sorbitol monolaurate, oleyl alcohol, oleic acid, octyl alcohol, castor oil, wax alcohols, sorbitol monostearate, or the hydroxyethylated compound obtained from the amide of hydrogenated tallow fatty acid.  The original solution may be in halogenated aliphatic hydrocarbons such as methylene chloride, chloroform, 1,2-dichlorethane or carbon tetrachloride. Agitation, such as stirring, is used to remove the precipitated polymer from the zone of precipitation.  The chlorinated or sulphochlorinated polymers may afterwards be vulcanized at raised temperatures and pressures in the presence of stearic acid, litharge and mercaptobenzthiazole. Specifications 418,069, 542,414 and 811,848 are referred to.
Patent GB-473476-A (GB)
Title: Apparatus for grading fruit, eggs or other articles adapted to be handled separately
IPC: B07C5/22
Filed: 1937-06-11
Abstract: 473,476. Grading by weighing. COOPER, C. E. T., and MURTON, S. June 11, 1937, No. 16253. [Class 143] In an apparatus for grading apples, eggs, &c. wherein pivoted receptacles carried on balances mounted on a turntable co-operate with trip devices which cause the automatic ejection of the apples &c. into grading bins, the turntable is mounted in a plane inclined to the horizontal. The turntable a is mounted in an inclined position on ball bearings c and the balances m are provided with tipping pans n normally retained by catches o. A roller r on a downward extension of each balance is arranged to run along rails g carried on a series of stationary balances f of decreasing resistance. A second roller r<1> runs on fixed tracks bridging the gaps between the rails g. A trip device l, l<1> is arranged adjacent each balance f. In use, an attendant places the articles singly in upper pans n and the weight of the articles causes the turntable to rotate. The roller r of each balance m bears successively upon the rails g of the balances f and if the weight of the article is sufficient, depresses the rail, and the catch o descends so as to be-displaced by the trip device l, l<1>. The pan then tips and discharges the article into a bin appropriate to the grade. Articles below a predetermined weight are carried forward and discharged by a further trip device.
Patent GB-333654-A (GB)
Title: Improvements in the manufacture, production and application of layers sensitive to light
IPC: G03C1/496
Filed: 1929-05-27
Abstract: 333,654. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). May 27, 1929. Colour photography; relief effects, producing.- Light sensitive layers for use in copying transparent coloured pictures or for making anaglyphs, are produced by dispersing into fine particles in known manner, liquefied organic colloids containing light sensitive substances and powders of water-insoluble dyestuffs or pigments insensitive to light, and applying the particles so formed to a sticky layer on a suitable substratum. In one example particles of an emulsion sensitized to red, e.g, with ethyl violet, and containing a green-blue pigment, and of an emulsion sensitized to green, e.g., with pinaflavol, and containing a red pigment, are mixed with particles of a blue sensitive emulsion containing a yellow pigment, the blue sensitivity of the first two emulsions being repressed by the addition of a yellow filter dye, e.g. naphthol yellow. Layers for making anaglyphs are prepared by mixing together particles of a red sensitive emulsion containing red pigment and a green sensitive emulsion containing green pigment. The exposed layers may be developed with non-tanning developer, and, after fixing, the particles containing free silver may be hardened, e.g., with quinine, and the layer transferred to a support and developed with water. Alternatively, after development and fixing, the metallic silver, together with the gelatin and dyestuff in contact therewith, may be removed in a bath of copper sulphate, sulphuric acid, hydrogen peroxide and potassium bromide. When the laver comprises collodion and a dyestuff soluble in alcohol, the image may be developed in a caustic developer such as pyrocatechin and caustic soda which renders the collodion porous, the porosity being increased, if desired, by converting the silver of the image into silver sulphide. The colouring matter is then washed out of the particles, e.g., with ethyl alcohol, and the metallic silver or silver sulphide removed in the usual manner.
Patent GB-766684-A (GB)
Title: Improvements relating to stays for hinged panels
Inventor: LAIT ARTHUR EDWARD
IPC: E05C17/30
Filed: 1954-06-02
Abstract: 766,684. Stays for hinged articles. LANE, Ltd., P. Feb. 14, 1955 [June 2, 1954], No. 16281/54. Class 65 (1). A telescopic stay 10, connecting a panel 16, such as a top-hinged window, to a fixed structure 15 to which the panel is hinged, is provided at or near its point of connection to the panel with a bolt for engagement with a retainer member 32 on the structure 15 to hold the panel closed. The stay comprises a bar 12 hinged at its upper end to the structure 15 sliding in a channel member pivoted at 20 to a bracket 19 on the panel 16, and the bolt is formed by a separate bar 26, with a nose 33, sliding in the lower end of the channel member and slotted to receive the pivot pin 20; the bolt is provided with an operating knob 28 which also serves to pull the panel to the closed position. The panel is held in any open position by friction between the bar 12 and a leaf spring held in a recess in the channel member. In a modification, the bolt is arranged transversely to the plane of movement of the stay; it may be spring- pressed, and may be actuated by a pivoted lever with a cam portion engaging its end. The bolt may be applied to a stay of fixed length having sliding engagement at one end with a guide-bar fixed to the panel. Specification 625,337 is referred to in the Provisional Specification.
Patent GB-1244473-A (GB)
Title: Recovery of methyl benzoate
IPC: A63H19/34
Filed: 1970-04-07
Abstract: 1,244,473. Recovery of methyl benzoate. DYNAMIT NOBEL A.G. 7 April, 1970 [30 May, 1969], No. 16504/70. Heading C2C. A process for recovering methyl benzoate from the by-products of the manufacture of dimethyl terephthalate by atmospheric oxidation of p-xylene, comprises subjecting the byproduct to an oxidative treatment (e.g. using atmospheric oxygen or a permanganate in the presence of cobalt or eerie salts and peroxideforming compounds), whereby compounds which can only with difficulty be separated by fractional distillation from methyl benzoate are oxidized, and fractionally distilling the oxidized product to obtain substantially pure methyl benzoate.
Patent GB-1261393-A (GB)
Title: Inductive transducers
Inventor: MAIR JOSEPH
IPC: G08C19/06
Filed: 1969-03-28
Abstract: 1,261,393. Inductive transducers. ASSOCIATED ENG Ltd. June 23, 1970 [March 28, 1969], No. 16505/69. Heading G1N. An inductive transducer responsive to the spacing of a rotating shaft 26 from its working face 23 is provided with a dummy transducer to give temperature compensation. In Fig. 1, a non-ferromagnetic casing 11 having a dividing wall 12 houses axially aligned ceramic spools 13, 14 with sector-shaped feet 18 abutting wall 12, on which are wound the active pick-up coil 19 and dummy coil 20 of ceramic-insulated silver or silver-palladium wire. Magnetic cores 21, 22 of bundles of soft iron wire through the hollow centres of the spools are bent round between feet 18 to lie parallel to the spool axis outside coils 19, 20 and are located in slots spaced around the circumference of spool flanges 16, 17. Both ends of the wires 21 end in the working face 23. The ends of the wires 22 end at face 24. A dummy armature 28 of the same material as shaft 26 is separated from face 24 by a ceramic spacer 27 of thickness equal to the average working gap between face 23 and shaft 26. Both coils are sealed against ingress of gas or vapour: a tensioned non-ferromagnetic diaphragm 25 is welded to casing 11 at the working face 23 and places spool 13 under compression; three leads 29 pass through ceramic sleeves 30 in slots in the periphery of spool 14 to connect the coils 19, 20 in adjacent arms of a bridge circuit, Fig. 2 (not shown), the leads being welded in hollow tubes 31 of nickel iron sealed in a sintered alumina plug 32 coated with molybdenum brazed to member 33 of nickel electron-beam welded to casing 11. An A.C. bridge circuit, Fig.2 (not shown), is described having zero adjust components (R2, L2), the output being fed via a synchronous detector (D) and filter (F) to an indicator, recorder or C.R.O.
Patent GB-784903-A (GB)
Title: Improvements in cooling or refrigerating apparatus
Inventor: PORTER THOMAS
IPC: F25D23/06
Filed: 1954-06-04
Abstract: 784,903. Refrigerators &c. PORTER & CO. (SALFORD), Ltd., T. Sept. 5, 1955 [June 4, 1954], No. 16530/54. Class 29 Articles to be cooled such as barrels b and bottle crates c have erected around them an enclosure with which is associated a refrigerating system including a compressor and condenser assembly 15 outside the enclosure and an evaporator 18 and an air-circulating fan within the enclosure. As shown, the enclosure comprises a skeleton framework 6, 11 with which are associated side panels 1, 2, a rear panel 3 and a top panel 4, the front having a roll-up closure 5 securable down the sides to studs 12. The refrigerating system is carried by members 13, 14 of inverted U-shape hung over one side wall. In modifications, the system may comprise a base on which one side wall rests, the compressor and condenser being mounted on one end and the evaporator and fan on a support extending upwards from the other end; the compressor or the fan may be thermostatically controlled; the enclosure may comprise a framework, which may be telescopic, covered with fabric; the front closure 5 may be divided vertically, the division being provided with a sliding- clasp fastener; and several enclosure units can be assembled end-to-end.
Patent GB-861126-A (GB)
Title: A method and means for the manufacture of moulds ready for casting
IPC: B22D33/00
Filed: 1957-05-24
Abstract: 861,126. Foundry-plant. BADISCHE MASCHINENFABRIK A.G. May 24, 1957 [May 26, 1956], No. 16581/57. Class 83 (1). In a foundry moulding-plant, copes and drags are moulded alternately, and the drags U are inverted by a device B on a lower roller-conveyer 3, and cores inserted en route to an assembling-station D, while copes O are lifted by a device A on to an upper parallel-conveyer 2, on which they are moved to the assemblystation D for placing on the drags. The copes are moved by a carriage 12 carrying fingers 20 and reciprocated by a cylinder 37, or alternatively by an electric-motor, and pass beneath a gate-forming device 17, being finally lowered on to an associated drag by a piston-actuated device 22. Limit-switches E1-E5 control the machine-cycle.
Patent GB-663539-A (GB)
Title: Improvements in and relating to vacuum cleaner accessories
IPC: F16L37/091
Filed: 1948-06-21
Abstract: 663,539. Tube joints. AKTIESELSKABET FISKER & NIELSEN. June 21, 1948 [July 10, 1947], No. 16602/48. Class 99 (i) Vacuum cleaner accessories comprise at least two suction nozzles 2 for mounting alternatively on a suction tube 1, each nozzle having at least one resilient tongue 6 the free end of which is directed towards the bottom of the socket 3 and can engage in an annular groove 11 of the tube. The distance from the nozzle shoulder 4 to the free ends of the tongues of one nozzle corresponds to the distance between the tube end 14 and the groove so that when the nozzle is. mounted on the tube with the tube end abutting the shoulder and the tongues engaged in the groove, the nozzle is free to rotate and the distance between the shoulder and tongues on the other nozzle is less than the distance between the tube end and the groove so that when the nozzle is mounted on the tube with the tube end abutting the shoulder the tongues press against the tube and the nozzle is then non-rotatably mounted. The tongues may be part of a ring 7 of U-shaped cross-section secured to the socket and may be placed at an angle of between 10 degrees and 170 degrees to the ring axis and have ends that are rounded, square or tapered to a point. The groove may have inclined sides 12, 13.
Patent GB-302943-A (GB)
Title: Process of coating and colouring metals
IPC: C23C22/46
Filed: 1927-06-22
Abstract: 302,943. Pacz, A. June 22, 1927. Ornamenting. -In a process for coating and colouring metals or metallic articles composed wholly or mainly of one or more of the meta1s, iron, aluminium, tin, lead, zinc, magnesium, and cadmium, the articles are dipped into or treated with a solution containing a soluble molybdate and a salt of oxalic, polysilicic, hydrofluoric, or hydrof1uo-si1icic acids in the absence of a simple salt of a metal of the iron group other than iron. In the treatment of iron articles, the latter are coated with copper and then treated with a solution containing a soluble mo1ybdate and f1uoride. The article may afterwards be treated with a solution of chromates. When treating zinc and cadmium, ammonium sulphate is mixed with the molybdate before use.
Patent GB-1044243-A (GB)
Title: Jet propulsion engines
Inventor: ROBERTS NORMAN
IPC: F02K1/08
Filed: 1965-04-20
Abstract: 1,044,243. Jet propulsion nozzles; combustion chambers. ROLLS-ROYCE Ltd. April 20, 1965, No. 16678/65. Headings F1J and F1L. A gas turbine jet propulsion engine has a propulsion nozzle which is defined between a cylindrical nozzle casing and a plug member mounted therein, the casing and the plug member being relatively movable so as to constitute a variable area nozzle, at least the upstream face or faces of the plug member being provided with a layer or layers of metal shingles. In the engine shown the jet nozzle comprises an outer casing 14 and a plug member 19 mounted therein for axial movement, axial movement being effected by an air motor 37 acting through gearing 38 and a ball screw arrangement 39, 40. The upstream face of the plug member 19 is is covered by a layer of metal shingles which afford a passage for the flow of cooling air, the air discharging through the spaces between the overlapping shingles. The annular space 13 may constitute a combustion section and the inner and outer walls thereof are formed by double walls with annular spaces therebetween for the flow of cooling air. The inner wall of the outer casing may be provided with a layer of overlapping shingles 16 similar to the upstream surface of the nozzle plug. The wall thickness of the nozzle plug at the region of greatest diameter is greater than that of the other parts of the plug, and the wall of the plug in this region is coated with a layer of anti-radiation, anti-oxidation material such as silicon carbide. The reversible air motor 37 is actuated by air tapped from the intake through duct 36 and the air after expansion in the motor is utilised for cooling the ball screw device. Rotation of the screw 39 causes axial movement of the nut 40 and sleeve 41 and hence of the nozzle plug 19 which is mounted for axial movement by means of rollers 34 which engage longitudinallyextending rails 33 secured to fixed structure.
Patent GB-695195-A (GB)
Title: Improvements in or relating to plain bearings
Inventor: TAIT WILLIAM HENRY
IPC: F16C33/20
Filed: 1949-06-23
Abstract: In a plain bearing, at least the surface layer consists of a synthetic plastic, e.g. superpolyamides, polytetrafluorethylene and polymethylmethacrylate, having incorporated therein molybdenum disulphide in the form of dispersed particles.  The molybdenum disulphide may be uniformly dispersed in the form of extremely small particles or it may be incorporated in a localized layer or zone. Alternatively, the bearing may comprise two or more layers of synthetic plastic, of which at least the layer forming the bearing surface contains a high proportion of molybdenum disulphide. Specification 677,240, [Group XXXIV], is referred to.
Patent GB-1434317-A (GB)
Title: Adjustable key for cylinder locks
IPC: E05B19/18
Filed: 1974-04-17
Abstract: 1434317 Keys JONATHAN LOCK Ltd 17 April 1974 [23 April 1973] 16775/74 Heading E2A An adjustable key for cylinder locks comprises a holder 10, a plurality of pins 21 displaceable longitudinally in the holder independently of one another and between a retracted position and any selected one of a plurality of operative positions, springs 24 biassing the pins to their respective retracted positions and manually operable setting means 28 for setting the pins in a selected configuration; means, mounted in the holder, are engageable with the pins for locking them in their set positions, and manually-operable release-means are provided to disengage the locking means from and to permit retraction of the pins. As shown, the manually operable setting means comprises independently adjustable tabs 28 connected to the respective pins and projecting through slots 30 having adjacent scale markings, and the locking means comprises pivoted pawls 32 independently mounted on a common axis 33 and a slotted blade spring 47 the independent spring sections of which bias the tooth 35 of the respective pawl into engagement with the ratchet portion 22 of the corresponding pin 21. The release-means comprises a button 40 with a plate member 42 incorporating a resilient abutment 44 which in a first position of the release means, Fig. 7, urges the pawls 32 in engagement with the ratchet portions 22 and in a second position thereof is disengaged to allow the ratchet portions to ride over the pawls; in a third position of the release means an abutment 46 of the member 42 holds the pawls out of engagement with the ratchet portions whereby the springs 24 retract the pins 21.
Patent GB-696332-A (GB)
Title: Improvements in or relating to the manufacture of hollow blocks of glass
IPC: C03B23/24
Filed: 1951-07-16
Abstract: 696,332. Making hollow glass blocks. PILKINGTON BROS., Ltd., and DENNETT, J. June 4, 1952 [July 16, 1951], No. 16876/51. Class 56. Hollow glass blocks of low thermal and acoustic conductivity are made by heating the rims of two preformed half-blocks to softening point and pressing the halves together, the halves being initially located on their bases in spaced side-by-side relationship and, after the rim-heating, being tilted up together so that the lowermost adjacent rims meet first and then the side rims roll on to one another, the period immediately before the top rims weld together being controlled to allow sufficient of the hot gases in the brick to escape to ensure that when the brick cools it will contain a rarefied atmosphere which is not subject to condensation. The machine for making the blocks consists of a bed 1 supported on legs 2 and carrying rails 3 on which a carriage 4, mounted on wheels 5, can move from a loading and heating station at the rear of the machine to a welding and unloading station at the front thereof. The carriage is moved to and fro by a lever 7 which engages a spindle 10 attached to the carriage and which is actuated by a plunger working in a doubleacting air cylinder 14. Hinged to the carriage by pintles 34 is a pair of platens 35 into which the preformed half-blocks 39 are secured at the loading station by removable rings 40. After the rims of the half-blocks have been heated by a pair of burners 55, the carriage is moved by lever 7 to the front of the machine where the platens are folded up together by the action of slotted cam levers 29 which are raised by spindles 23 secured to the ends of a crosshead 18 which is mounted on a vertical plunger 19 working in a double-acting cylinder 20. The slots 38 in the cam levers 29 are designed so that the folding movement of the platens slows down as they approach the vertical position to allow egress of hot gases contained between the half-blocks. To prevent air from entering the cavity between the half-blocks, a linear burner (not shown) may be provided to heat the air just above them as they reach the vertical position. The final movement of the platens and the welding pressure between the half-blocks is produced by the downward movement of a crosshead 48 mounted on a plunger 47 working in a double-acting cylinder 46, the cross-head carrying rollers 53 which engage ramps 52 on the platens to press them together. After welding, the cross-head 48 is raised and levers 29 are drawn downwardly to open the platens, allowing the block to fall on to a plate 71 whence it is transported to the annealing lehr. The operation of the machine is controlled by cams 56, 57 and 58 mounted on a shaft 59 driven by a motor 70, the cams actuating rockers 60 which operate slide valves 62 to admit compressed air to cylinders 14, 20 and 46 in the correct time sequence.
Patent GB-889372-A (GB)
Title: Improvements in the production of pigmented polyhexamethylene adipamide
IPC: C08J3/20
Filed: 1960-05-13
Abstract: Polyhexamethylene adipamide pigmented with titanium dioxide is made by concentrating an aqueous solution of hexamethylene diammonium adipate, adding the titanium dioxide when the concentration of the adipate solution is at least 70% by weight, adding a manganous salt at least 30 minutes after the titanium dioxide addition is complete and when the molecular weight of the polyhexamethylene adipamide is at least 1,700, and completing the polymerization.  Specified manganous salts are manganous hypophosphite, oxalate and pyrophosphate.  An example is given of the process of the invention in which acetic acid is used as viscosity stabilizer.  Specification 793,132 is referred to.
Patent GB-386876-A (GB)
Title: Improvements in steam circulating jets for heating corrosive and erosive liquids
IPC: F04F5/46
Filed: 1932-06-16
Abstract: 386,876. Injectors. PHOSPHOR BRONZE CO., Ltd., HYSLOP, C. G. T., 89, Sumner Street, London, and WYNN, E. E., Linden, Old Fallings Lane, Wolverhampton. June 16, 1932, No. 17060. [Class 71.] A steam injector for heating and circulating corrosive liquids has a nozzle B, which is made of hard material such as silicon iron or glass, formed with a flange E adapted to be secured between flanges on the injector body and on the steam pipe C, and with a fin F engaging in a recess in the injector body.