baber/WOPTO huggingface dataset:
Patent GB-981424-A (GB)
Title: Improvements in or relating to heterogeneous nuclear reactors
Inventor: HACKNEY STANLEY
IPC: G21C1/08
Filed: 1960-07-15
Abstract: 981,424. Nuclear reactors. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. June 16, 1961 [July 15, 1960], No. 24720/60. Heading G6C. A heterogenous nuclear reactor core comprises tubes 15 containing sheathed fuel elements 16 disposed in a heat transfer fluid, and being interconnected so that, in relation to a cooling fluid passed over the tubes 15, the heat transfer fluid proceeds first in one tube 33 in the same direction as the cooling fluid and then in an adjacent tube 35 in the opposite direction, the tubes being so constructed that heat transfer between the two fluids is reduced when they flew in the same direction and increased when they flow in opposite directions. The invention is described with reference to a boiling water reactor and, as shown in the section in Fig. 2, pressurized water is circulated up one tube 33 between the fuel elements 16, in a direction parallel to that of the flow of a water coolant/moderater outside the tubes 15, into the portion of the tube 33 above the fuel elements 16 which contains a heat insulator 34. This is preferably a thin sleeve supported with clearance within the tube 33, the annular space between it and the tube being closed at one end and containing stationary water. The pressurised water then flows through a coupling 20 to the tube 35, the upper portion of which has longitudinal fins 36 on its outer surface and contains a plug 37 to increase the flow velocity of the water. The upper ends of the tubes 15 are provided, above the water level in the reactor pressure vessel, with spaced circumferential fins 32, those of one tube interlacing with those of adjacent tubes so as to serve as a steam separator. The circulating pressurised water loses little heat in the tube 33 but, over the longitudinally finned length of the tube 35 where a counter-flow relationship exists between the pressurized water inside the tube and the steam from the reactor coolant/ moderater, the pressurized water superheats the steam to a temperature near that which it itself attains. Since only half the tubes 15 are effective for superheating purposes, the flow of steam may be given a cross-flow component by means of a frusto-conical baffle plate situated above the separator section and differential heat transfer arrangement shown in Fig. 2. Each of the tubes 15 contains a group of juxtaposed sheathed fuel elements of circular cross-section, there being three, viz. 28, 29 and 30, in the illustrated example (Fig. 3). Wound round the sheath of each element is a helical spacing wire 41 of such a diameter that the three elements fit snugly in a triangularly arranged bundle in the tube, one element being inserted with the wire helix oppositely handed to the other two. Specification 981,423 is referred to.
Patent GB-1533666-A (GB)
Title: Crosslinkable polymers
IPC: C08G69/44
Filed: 1976-06-16
Abstract: 1533666 Crosslinkable copolymers containing imide groups CIBA GEIGY AG 16 June 1976 [18 June 1975] 24891/76 Headings C3P and C3R Crosslinkable polymers having an average molecular weight of at least 1200 are prepared by (a) addition polymerization optionally with a vinyl or vinylidene monomer of a compound of the Formulae Ia or IIa where A is a divalent C 2 , C 3  cyclohexyl, norbornyl or oxanorbornyl group containing an ethylenically unsaturated bond and R 1  and R 2  are selected from OH, a phenoxy group, a C 1 -C 18  alkoxy group or -OM where M is an alkali metal or trialkyl or quaternary ammonium cation also two R 2 's form -O- group or (b) polycondensation with an aminoalcohol, diamine or diol of a compound of Formulae Ia or IIa where A, R 1  and R 2  are the same except that R 1  may be chlorine and neither R 1  or R 2  is an OM group. Optionally together with a di-, tri- or tetracarboxylic acid or derivative thereof. The examples relate (a) to the copolymerization of styrene with 5-maleimidyl-trimellitic anhydride ethyl ester and subsequent crosslinking with m-amino-phenol and (b) to the polycondensation of 5 - maleimidyl - trimellitic anhydride chloride with one of trimellitic anhydride chloride, isophthalic acid dichloride and 3,3<SP>1</SP>,4,4<SP>1</SP> - benzophenone tetracarboxylic acid dianhydride and one of 4,41 - diaminodiphenylmethane, 3 - aminophenol, 4,4<SP>1</SP>- diaminodiphenyl ether, 1,12 - diaminododecane and butanediol.
Patent GB-188148-A (GB)
Title: An improved method of applying sheets to printing cylinders and apparatus therefor
IPC: B41F27/12
Filed: 1921-09-21
Abstract: 188,148. Penrose & Co., Ltd., A. W., Gamble, W., and Owen, M. Sept. 21, 1921. Printing-surfaces. - Flexible printing-plates are applied to cylinders by attaching one end of the plate in a gap in the cylinder, extending the plate tangentially to the cylinder and connecting its free end to a straining-device. rotating the cylinder to wind the plate upon it while under tension, and finally securing the free end of the plate to the cylinder. The printing- cylinder 5 is mounted on a shaft 4 adapted to be rotated by worm gear 6, 7 and a hand-wheel 8. One end of the flexible sheet 18 is secured in the gap 22 and the other end to a clamp bar 17 connected by a chain 16 to a sprocket wheel 11 on a spindle 10, the rotation of which can be retarded by a band brake 13 or by weights, springs, &c. To maintain the bar 17 parallel to the spindle 10 it is connected to the chain 16 by a chain 21 having its ends secured to the ends of the bar 17 and passing round a toothed wheel carried by a block 19 on the end cf the chain 16. The free end of the sheet is finally pressed into the gap 22 by a bar adapted to fit the gap and to be bolted therein, or a narrow fixing-bar may be employed, the edge of the sheet extending beyond the bar across to the other side cf the gap and serving to collect ink which is thus removed with the sheet when the printing is concluded.
Patent GB-278692-A (GB)
Title: Improvement in mining machines
IPC: E21C31/00
Filed: 1927-09-23
Abstract: 278,692. Sullivan Machinery Co., (Assignees of Holmes, M. P.). Oct. 8, 1926, [Convention date]. Coal-cuiting machines.-A coalcutting machine has a gear head casing rotatably mounted on the machine body, a motor in the body acting through flexible means to rotate the gear head casing; a cutter-chain jib pivoted to the gear head casing may be swung about its pivot by the same flexible means. The gear head casing 2 has a sleeve 193, Fig. 4, supported on bearings 194 on a neck 23 extending from the motor casing 3. The motor, through variable speed reversing gearing as described in Specification 244,694, drives a horizontal shaft 106 loosely carrying a chain sprocket 180; a clutch sleeve 143 Fig. 12, is adapted to engage teeth 181 to lock the sprocket tc the shaft. A chain 183 passes over the sprocket and guide, pulleys 184, 185, over forward guide pulleys 187, 188, round guides 191, 192 in the sleeve 193, over guide pulleys 195, 197, 196, 198 on the gear head casing, and round the latter to hooks 201 on a locking device 73 carried by the cutter-chain jib 68. The looking device 73 comprises clamping members 74, 75, Fig. 3, arranged in a boss 70 embracing a flange 72 on the gear head casing, an oppositely threaded screw 77 beeing provided to move the clamping members when desired to cause their serrated ends to grip the flange 72. The gear head casing may be locked to the motor casing by a pin 202, Fig. 4, supported by the latter and ground to embrace a flange 205 on the sleeve 193 ; the pin is rotated by a shaft 211 to engage one of a series of recesses 209 in the flange 205 to lock the gear head casing. When the chain is used to swing the jib 68, or rotate the gear head casing, the other member is locked. The clutch sleeve 143 may also connect the shaft 106 to an aligned shalt 145 which drives reversing bevel gearing 152, 153, 154, Fig. 12, controlled by a toothed clutch 160 and a lever 164 provided with a locking trigger 165; the bevel gear drives, through a chain, an adjustable shaft 171, Fig. 1, connected by a chain 175 to a rear truck axle 11, a chain 177 connecting the front and rear truck axles. The driving gear and the clutch control for the cutter chain are as described in Specification 244,694. Specification 233,366 also is referred to.
Patent GB-251426-A (GB)
Abstract: 251,426. Eyre & Spottiswoode (Bible Warehouse), Ltd., and Cosans, T. D. April 22, 1925. Partitioned cases; covers.-In a case for mathematical drawing instruments, the recessed member 1 is made solid and separate from the rest of the case and is secured therein so as to leave a space or compartment 4 between itself and the bottom 5 of the case, such compartment being permanently closed at the front by the front wall of the case and being closed at the back, when not in use, by a panel 11 of the cover 8 which is fixed to the outer surfaces of the front wall and bottom of the case. As shown, the cover has a flap 9 provided with snap fasteners &c. 10 adapted to engage complemental fasteners on the front wall of the case. The member 1 may have ledges 3 by which it is supported and spaced for the bottom 5, or it may be secured by pins &c. driven through the side walls 2 of the case.
Patent GB-155230-A (GB)
Title: Improvements relating to electric contact devices
IPC: H01R13/24
Filed: 1920-09-01
Abstract: 155,230. Farmer, C. C. Dec. 10, 1919, [Convention date]. Couplings and connectors.-In butt contacts for electric train-wire couplings in which rotary movement is imparted to the meeting faces of the coupling contacts 2, as by screw-threads 3 on the contact-members engaging nuts 4 in the coupling heads 1, the central portion 7 of the meeting faces is removed by a drilling operation or otherwise.
Patent GB-1194223-A (GB)
Title: New Organotion Compositions
IPC: C08K5/58
Filed: 1967-06-01
Abstract: 1,194,223. Organotin compositions. CARLISLE CHEMICAL WORKS Inc. 1 June, 1967 [3 June, 1966], No. 25249/67. Heading C2J. [Also in Division C3] Organotin compounds comprise the reaction product of (1) an organotin mercapto acid derivative containing one or more SR<SP>1</SP>COOR<SP>11</SP> groups bound by the sulphur atom to the tjn atom of a hydrocarbyltin group where R<SP>1</SP> is a divalent hydrocarbon radical which is alkylene of at least 2 C atoms, phenylene or polymethylene interrupted by a phenylene, and R<SP>11</SP> is a monovalent hydrocarbon radical, preferably an alkyl group of 4 to 12 carbon atoms, with (2) a diorganotin oxide or a hydrocarbyl stannoic acid, where (2) is applied in a molar amount not exceeding the number of available COOR<SP>11</SP> groups of (1). The hydrocarbyltin group has the formula -SnR n  where R is an alkyl group of 4 to 12 carbon atoms and n is an integer from 1 to 3. The compounds can be prepared directly by the reaction of an " organotin oxide " as defined in the Specification, with a mercapto acid ester HSR<SP>1</SP>COOR<SP>11</SP>, preferably in the proportion of ¢ to 1¢ moles of the former to 1 mole of the latter. They can also be prepared by reacting an organotin mercapto ester with the " organotin oxide." Suitable mercapto acid components are beta-mercapto propionic acid, # to (#-mercaptolauric acids, mercapto phenyl acetic acid.
Patent GB-794271-A (GB)
Title: Improvements relating to upward current classifiers
Inventor: BURCH CECIL REGINALD
IPC: B03B5/62
Filed: 1955-09-02
Abstract: 794,271. Upward current classifers. JANES, A. E. J. E. Sept. 3, 1956 [Sept. 2, 1955], No. 25290/55. Class 82(2) An upward current classifier has a plurality of vertically spaced deflector devices extending over substantially the whole cross-section of the classifying column, each deflector device consisting of slots or other openings separated by inclined portions. A suitable classifier is shown in Fig. 3, the deflectors 'being shown at 19. The classifier has a feed hopper 11 and water inlet 18. Modified classifiers are disclosed, one having a "forest" of tubes at the top end, the other having a double classifying column. One form of deflector is shown in Fig. 1, the blocks 1 being inclined at some 30 degrees to the axis and alternate deflectors being oppositely handed. In Fig. 2A, an enlarged section of a further deflector element is shown. The star shaped holes 4 are formed by bending portions 6, 6<SP>1</SP> out of the plane of the sheet, the portions 6 being inclined differently to those marked 6<SP>1</SP>.
Patent GB-707130-A (GB)
Title: Improvements in or relating to electric signal repeaters
Inventor: BRAY FREDERICK HARRY
IPC: H04Q1/36
Filed: 1952-10-09
Abstract: 707,130. Automatic exchange systems. STANDARD TELEPHONES & CABLES, Ltd. Oct. 9, 1952, No. 25325/52. Class 40 (4) [Also in Groups XL (b) and XL (c)] A D.C. impulse repeater includes a crystal triode so connected that it may assume either of two stable states. As shown, the crystal triode CTA, by virtue of the positive feed-back introduced by resistances R12, R11 connected in its base circuit, is rendered unstable on the high-gain portion of its characteristic and may be triggered from a non-conducting to a conducting state and vice versa by changes in the base potential relative to the steady biasing potential applied to the emitter from the potentiometer R14, R15. The changes in base potential are effected by the distant impulsing contact mc1 over one leg of the speech circuit, the resulting changes in collector current operating relay HSA which repeats the impulses over one leg of the outgoing line. Similar arrangements are provided for signalling in the opposite direction. By varying the emitter bias the change-over point for the crystal may be varied to provide a measure of impulse correction.
Patent GB-1108815-A (GB)
Title: Method for the preparation of polymers that can be photochemically cross-linked
Inventor: DANHAUSER JUSTUS
IPC: C08G18/71
Filed: 1965-06-15
Abstract: Polymers containing azidosulphonyl groups are prepared by reacting polymers containing active hydrogen atoms with a phenyl sulphazide compound containing at least one isocyanate group, or with a phenyl sulphochloride compound containing at least one isocyanate group and subsequently with sodium azide.  Specified polymeric materials are gelatine, starch, cellulose, cellulose ethers and esters, polymers of vinyl alcohol which may contain units of comonomers such as olefins and conjugated di-olefins, vinyl esters, vinyl ethers, styrene, acrylic and methacrylic acids, esters and nitriles, vinyl and vinylidene chloride, and maleic anhydride, particularly partially saponified ethylene/vinyl acetate copolymers, and hydroxyl containing polyesters, polyethers, polyurethanes, polyamides and epoxy resins, e.g. condensates of alcohols, acids and amines with epihalohydrins. Specified isocyanates are m- and p-isocyanatobenzene sulphazides and sulphochlorides and 2-chloro-5-azidosulphonyl phenyl isocyanate.  The reaction may be effected in solvents, e.g. formamide, dimethyl formamide, cyclohexanone, acetone, butyl acetate and pyridine, at room or higher temperatures. The products may be photo cross-linked, optionally in the presence of sensitizers, and may be spun or cast to form films, moulded into shaped articles, or coated on metals, paper, glass and plastics and selectively exposed to form resists. In examples saponified ethylene/vinyl acetate copolymers are reacted with (1) p- and (2) m-isocyanato benzene sulphazide; saponified vinyl acetate/vinyl chloride copolymers are reacted with (3) p- and (4) m-isocyanato benzene sulphochloride and sodium azide, and with (7) 2-chloro-5-azidosulphonyl phenyl isocyanate; (5) a 2,2-bis-(4-hydroxyphenyl) propane/epichlorohydrin condensate is reacted with p-isocyanato benzene sulphochloride and sodium azide; and (6) a partly hydrolysed cellulose acetate is reacted with p-isocyanato benzene sulphazide.ALSO:Isocyanato benzene sulphazides may be prepared by reacting the chlorosulphonyl acid chlorides with sodium azide and heating.  In Example (1) p-chlorosulphonyl benzoyl chloride is reacted with sodium azide and heated to give p-isocyanato benzene sulphazide, and m-isocyanato benzene sulphazide and 2-chloro-5-azidosulphonyl phenyl isocyanate are prepared similarly.
Patent GB-219214-A (GB)
Title: An improved face screen for motorists, and the like
IPC: A42B3/22
Filed: 1923-10-12
Abstract: 219,214. Dove, W. Oct. 12, 1923. Accessories.-A motorist's face - screen comprises a sheet of transparent celluloid D riveted to a frame E of steel or other resilient material provided with extensions formed with oval holes adapted to engage turnbuttons F riveted to a helmet G or equivalent head-covering. The frame is so formed that the shield stands well away from the face.
Patent GB-830935-A (GB)
Title: Improvements in apparatus for handling coke oven doors
IPC: C10B25/12
Filed: 1956-08-21
Abstract: 830,935. Coke-oven doors. OTTO, C. Aug. 21, 1956 [Sept. 19, 1955], No. 25490/56. Class 55 (1). In a coke-oven door having, in the latch assemblies 18, means expansible by fluid pressure to maintain the pressure of the doorseals on the door frame, the pressure fluid is supplied from the door machine 40 through a detachable coupling 25, 38, the part 38 of which is carried on a plate 41 which is carried on a fixed plate 42 by a number of rods 43 having universal joint connections at their ends with the plates 41, 42, so that part 38 will move parallel to itself by contact with a funnel-like member 37 to engage properly with the part 25 irrespective of an initial misalignment. The part 38, when advanced into the part 25, opens a spring- pressed disc valve 33 in the latter so that, according to the setting of a valve or valves, pressure fluid is admitted to or vented from the expansible means for application or relaxation of the sealing pressure. The plate 41 is maintained resiliently in its normal operative position by four springs 47, or alternatively the the plates 41, 42 may be joined by a central resilient rod. Specification 701,355 is referred to.
Patent GB-246555-A (GB)
Title: Improvements in signal lamp
IPC: F21L19/00
Filed: 1924-10-27
Abstract: 246,555. Dehn, F. B., (Burgoyne Light & Signal Corporation). Oct. 27, 1924. Signal lamps.-A signal lamp comprises a wick burner 20, and oil font 15, and a casing 16 arranged in a housing 1 having a hinged top 5 secured by a catch 7. The top 5 consists of a dome-shaped element 8 provided with a downwardly extending tubular element 9 and provided with an upwardly extending tubular wall 11 carrying a chimney 10 and surmounted by a cap 14. The chimney 10 fits snugly in a flue 22 extending upwardly from the top of the casing 16. The air for combustion enters the housing 1 through holes 24 in the tubular element 9 and passes into the casing 16 through perforations 25 below the burner. A depending flange 23 may be provided on the element 8 to deflect the air downwardly. The casing 16 is provided on its vertical walLs with glazed openings 18 registering with openings 3 in the housing 1 and with lenses 4 arranged in front of the openings 3. Light is allowed to pass intermittently through the lenses 4 by a rotating sleeve 43 formed with apertures 44 registering with the openings 18. The sleeve 43 is rotated by the combustion products impinging on vanes 42 which connect the sleeve to its supporting pivot 41. The pivot 41 rests on a depression 40 in a member 39 connecting vertical wires 38 extending upwardly from the burner 20.
Patent GB-600664-A (GB)
Title: Improvements in or relating to rubbing pads for holding a strip of polishing or abrasive material
IPC: B24D15/02
Filed: 1944-12-20
Abstract: 600,664. Rubbing-pads. STEVENS, A. H. (Sterling Tool Products Co.). Dec. 20, 1944, No. 25556. [Class 60] A rubbing-pad with an abrasive strip secured at one end of a backing plate and tensioned at the other end, includes a flattened hollow tumbler urged by a spring to press the strip against the backing plate, and a slotted fixed guide near the end of the tumbler shaped to permit the insertion of a key and to limit oscillation. On to the back plate 5, which has a felt pad 14 cemented to its bottom face, U- shaped spring keepers are riveted to confine a tubular tumbler 17 which is held against axial movement by guide members 18 with L-shaped guide slots 19. A key is inserted in the slot 19 to turn the member 17 from a position where it presses and tensions the abrasive strip 21 against the back plate to a horizontal position when the strip can be removed. The L-shaped slots 19 also limit the oscillation of the key so that damage to the spring keepers is avoided. Specification 578,027 is referred to.
Patent GB-770552-A (GB)
Title: Improvements relating to clampiug means for the coupling of coaxial tubes
IPC: E04G7/24
Filed: 1954-09-02
Abstract: 770,552. Clamp fastenings. HAHN, A. Sept. 2, 1954 [Sept. 2, 1953], No. 25559/54. Class 44. [Also in Group XXVIII] A toothed member 3 eccentrically pivoted on a coupling sleeve 1 directly clamps one pipe 6, the resultant axial displacement of which acts on another pipe 14 to cause its clamping by means of a like toothed member 15. Radial displacement of the tube 6 under clamping may cause clamping of another pipe 28 directly or via a pressure transmitting member 29. The members 3, 15 pivot on pins mounted in holes 13, 38 in a pair of lugs 2 on the sleeve 1, the holes 13 being elongated and the holes 38 coacting with eccentric parts of their pin which has a squared end to which a spanner may be applied to initially adjust or to assist release of the member 15. A spring 17 urges the member 15 into initial contact with the pipe 14 and both members 3, 15 have spring-loaded pawls 8 each coacting with teeth 9 to hold the members 3, 15 in engagement and releasable by the end of an extension handle 22 when placed on an arm 7 of one or other member. The pipe 28 is clamped in a split or unsplit tube 24 which may be welded to the sleeve 1 or rotatably mounted on a sleeve insert 27 and have further like tubes similarly connnected thereto to clamp further inserted pipes simultaneously with clamping of the pipe 28. If the pipes 6,14 are for fluid flow, they have packing 23 between their end faces. The members -3, 15 may have oppositelydirected teeth, and the member 3 teeth curved to fit the pipe 6. The tube 24 may additionally have clamping means like the member 3.
Patent GB-1409040-A (GB)
Title: Heat resistant alloy
IPC: C30B33/00
Filed: 1974-06-10
Abstract: 1409040 Heat-resistant alloys INTERNATIONAL NICKEL Ltd 10 June 1974 [11 June 1973] 25626/74 Heading C7A A high strength heat-resistant directionally solidifiable alloy with good stress-rupture and ductility properties comprises:- with the balance being Ni (>50%) and unavoidable impurities, with the provisos that Cr + W + Mo does not exceed 20% and that Ti:Al= 1.2-1.8:1. Good stress-rupture properties and elongations are obtained by a duplex or triplex heat-treatment consisting of either 1-4 hours at 1079-1204C, A.C. then more than 12 hours at 816-871C, A.C. or by inserting a further step between the above treatments of 2-6 hours at 1038-1079C, A.C. The impurities should be kept to a minimum, and may be Se, Te, P.S., As, Bi, Sn, or Pb. The alloy may be used in directionally solidified form for gas turbine components, valve seats, forging blocks and dies, extrusion flanges &c.