baber/WOPTO huggingface dataset:
Patent GB-867127-A (GB)
Title: Improvements in or relating to removable sealing devices for sealing an aperture in a pressure vessel
Inventor: HAMM JACK
IPC: F16J13/04
Filed: 1958-12-29
Abstract: 867,127. Nuclear reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Nov. 26, 1959 [Dec. 29, 1958], No. 41945/58. Class 39(4). A pressure resisting closure for sealing the refuelling apertures in the pressure vessel of a gas-cooled nuclear reactor consists of a circular plate 1 which is slid into position above the aperture 2 and is forced into sealing engagement with the aperture rim by a series of thrust members 6, 7 arranged in a ring above the sealing region of the plate 1 and which bear against a thrust plate 8 which itself bears against a thrust structure 5. The thrust members 6 consist of threaded rods which are screwed into sleeves 25, the sleeves being externally provided with gear teeth 31 which intermesh with a gear wheel 32 carried on a shaft also carryjng a worm wheel which can be rotated by a shaft 37. Thus rotation of the shaft causes all the members 6 to be simultaneously raised or lowered. To ensure that an evenly distributed pressure is exerted over the whole sealing region of the plate, a closed ring <of pressure pads 15, 16 alternately of arch form and inverted arch form respectively is disposed on the plate 1 above the sealing region. When the closure is to be sealed the extensible members 6 are screwed downwardly, each member bearing on a pad 15 therebelow, this pad pivoting adjacent pads 16 which in turn pivot adjacent pads 15 beneath the members 7. Further downward movement of the members 6 results in the pads being pressed against each other so that the thrust of the members 6 is transmitted to several closely spaced points on the plate 1.
Patent GB-984576-A (GB)
Title: Electrical wiring device
IPC: H01R13/20
Filed: 1961-11-23
Abstract: 984,576. Two-part couplings. HARVEY HUBBELL Inc. Nov.23, 1961 [March 6, 1961], No. 42002/61. Heading H2E. A connector comprises a plug 1 with pins 6, 7 at least one of which has at least one groove 11, a socket with a body 2 containing contacts 18, 19 and locking means. One part 18b, 19b of contacts 18, 19 constitutes an entry part for the insertion of pins 6, 7, and another part 18c, 19c constitutes a locking part. At least one of contacts 18, 19 has in its locking part 18c, 19c an inwardly extending protrusion 24 engageable with groove 11 in the grooved pin so that inserting plug 1 into the socket and twisting plug 1 locks it to body 2. As shown, both pins 6, 7 have grooves 11 and both contacts 18, 19 have protrusions 24. Also both pins 6, 7 have grooves 10. Body 2 has a cover 3 with arcuate slots 25, 26 with entry parts 25a, 26a fitting the full peripheral outline of the grooved pins and narrowed locking parts 25b, 26b fitting the peripheral outline of the pins at grooves 10, so that when plug 1 is inserted into the socket and twisted, plug 1 is locked additionally by grooves 10 being engaged by parts 25b, 26b. A threepin connector is described (Figs. 5, 6, not shown) in which one or more of the pins may have one or two grooves. The contact elements may be split into two longitudinal portions (Figs. 8, 9, 10, not shown) one portion being of lighter gauge than the other and possibly spring- loaded to provide resilience for a heavier gauge pin and to enable different sized pins to be used. A continuous outlet strip is shown in Fig. 11 in which contact elements 94 are mounted at intervals in an insulating base 93 in contact with bus-bars 95, 96 with pairs of arcuate slots 97 above them and with an opening 110 for incoming wires to be connected to the bus-bars 95, 96 by screws 111. A protective cover 101 may be provided. The outlet strip can be converted for use in a three-wire system by providing earthing springs 99 at intervals, these being connected to earth and making contact with the cover 101 which clamps a conversion insert 103 which has earthing togues bent in to make contact with earthing strips 104b on the outside of a suitable plug 104, located in position by cut-outs 104a engaging projections in adaptor 103.
Patent GB-1485892-A (GB)
Title: Method of sealing and consolidating water-bearing geological formations
IPC: C09K107/00
Filed: 1975-10-15
Abstract: 1485892 Stabilizing rock formations BERGWERKSVERBAND GmbH 15 Oct 1975 [15 Oct 1974] 42180/75 Heading E1F Water-bearing geological formations are sealed and consolidated by the injection, into cavities in the formation, of a freshly prepared mixture of a polyisocyanate, a polyol, an accelerator, and a foam stabilizer; the mixture is allowed to absorb water from the formation to produce a foam, which then sets.
Patent GB-981159-A (GB)
Title: A multi-station fluid actuated work transfer appliance for use in case where work is required to be subjected in sequence to prescribed machining operations
IPC: B23Q37/00
Filed: 1962-11-08
Abstract: 981,159. Machine tool details. E. ANWYL. Feb. 5, 1964 [Nov. 8, 1962], No. 42191/62. Heading B3B. A multi-station fluid actuated work transfer device, comprises a bed 17, a work-table 10 displaceable on the bed, a double-acting fluidoperated cylinder 11 for traversing the table, a hydraulic cylinder 12 for controlling the final approach of the table, and fluid-actuated table-locking means 19. Piston rods 111 and 121 of cylinders 11 and 12 respectively are fixed to table 10, and a metering valve 13, by-pass valve 15, and stop valve 16, are provided on cylinder 12. Dogs 103, each of which corresponds to a drilling station, actuate a micro switch 18, to control valve 16, similar holes 105 co-operate with table-locking plunger 19, and adjustable end stops 107, 108 are provided. In operation, a drilling operation is carried out with the table on end stop 107. As the drill is retracted fluid is supplied to cylinder 11, and the table moves to the second station, thus moving the piston in cylinder 12, to displace fluid from one end of the cylinder to the other, as permitted by valves 13, 15, 16. A dog 103 actuates switch 18 to close valve 16 and stop the table, and fluid is supplied to plunger 19, which engages in a hole 105 to lock the table in the station 2 position. The cycle is repeated for each station, until the table engages stop 108. The fluid flow to cylinder 11 is reversed, and the table returns to its initial position, against a fluid-actuated dash pot 20. A second table may be provided which is movable at right angles to the first table and the sequence of operations may be controlled by a punched tape. Specification 856,308 is referred to.
Patent GB-1270097-A (GB)
Title: Polyamide and polyetheresteramide composition
Inventor: GARFORTH JOHN DAVID
IPC: D01F6/90
Filed: 1968-09-05
Abstract: 1,270,097. Polyamide-polyesteretheramide voided fibres. IMPERIAL CHEMICAL INDUSTRIES Ltd. 18 Aug., 1969 [5 Sept., 1968], No. 42215/68. Heading B5B. [Also in Divisions C3 and D1] Fibres are formed from a composition which comprises (A) a synthetic linear polyamide and 0À1-25% wt. of (B) a polyetheresteramide, <20% wt. (e.g. 0%) of the polyamide repeat units of (B) are identical with those of (A). (B) is a condensation product of an aliphatic dicarboxylic acid (a), a hydroxypolyoxyalkylene compound (b), and an aliphatic or cycloaliphatic amino acid or lactam (c) and/or diamine (d). The composition may be prepared by mixing (A) and (B) in the solid state, melting and blending, e.g. in an N 2  atmos., and cooling to solidify. The composition is melt-spun into fibres which are then washed or scoured, e.g. in an aq. solution of Na 3 PO 4  and Na oleyl p-anisidine sulphonate; the resulting fibres are resistant to discoloration by soiling. The washing removes some of (b) from the fibres leaving voids therein, e.g. by hydrolysis of some of (B). Polyesteramide (B) may be as in Specification 1,124,271 and prepared as described therein. In examples (a) is present as adipic or sebacic acid or dibutyloxalate, (b) is polyethylene glycol of av. M.W. 1540; (c) is caprolactam; (d) is hexamethylamine diamine, present as the sebacate or in methanolic solution. (A) is nylon 6/6. In a contrasting example (A) and (B) having identical polyamide repeat units derived from caprolactam are mixed, (A) being nylon 6.
Patent GB-984336-A (GB)
Title: Improvements in or relating to chimneys for cooling hot gases
IPC: C21C5/40
Filed: 1963-10-25
Abstract: 984,336. Converter chimneys; tubular heat exchangers. C. K. DE LA SAULX, and N. SALIER. Oct. 25, 1963 [Jan. 7, 1963], No. 42257/63. Headings F4J and F4S. A chimney, for example for conveying gases from a metallurgical converter, comprises cooling water channels within the side walls 2 ... 5 surrounding a central duct 6 for the hot gases which duct has at its top portion at least one bunch of water tubes 8, 11 which each communicate with a side wall at one end and at the other with a reservoir tank 10 into which the channels extend, the tank being provided with at least one vapour separator 15 and surrounding the duct exit aperture. The water flows from the channels through the projections 2a, 4a and the sets of tubes 8, 11 to the cross-headers 9, 12 from which pipes such as 13 extend to the reservoir. The water returns to channels at the base of the chimney via ducts 14. As shown, the tubes may be inclined alternately to opposite hands. Projections 4b, 2b support the cross-headers 9, 12 and supporting collars 16, 17 at the level of each set of projections are provided. The reservoir may he formed by the extended inside and outside walls of the chimney.
Patent GB-1455960-A (GB)
Title: Method for the separation of air with recuperation of mechanical energy
IPC: F01K13/00
Filed: 1974-09-30
Abstract: 1455960 Separating air T ZAKON 30 Sept 1974 [27 Feb 1974] 42314/74 Heading F4P An air separation plant is thermodynamically interlinked with a steam generator 89 in order that nitrogen product from the top of a twostage fractionation column 671, the lower highpressure stage operating at between 9 and 25 ata and the upper intermediate pressure stage at between 1À5 and 9 ata, can be heated by the compressed feed air in accumulators 45 before passing to a heat exchanger 90 wherein the flue gases of the steam generator impart further heat to the nitrogen product which is then workexpanded in turbine 910 to drive compressors 12, 34 for the air feed, the nitrogen product finally being brought into heat-exchange with the heated fluids of the steam generator to impart its remaining heat thereto before being taken off as product. A more detailed modification of the Fig. 1 plant is also described (Fig. 2, not shown) and three detailed examples of steam generators are given (Figs. 3 to 5, not shown).
Patent GB-424472-A (GB)
Abstract: 424,472. Cylinders. MOREN, H. K., 1, Vasbergsgatan, Eskilstuna, Stockholm. July 17, 1934, No. 20898. [Class 7 (ii)] The piston-controlled ports of a two-stroke cylinder comprise : (a) two sets 6, 7 of inlet ports extending, together, round the bore, and (b) a set 10 of exhaust ports on one side only ; a piston baffle 5 has guiding surfaces 12, 13 which cause a combined scavenging current to rise on the side of the cylinder opposite the exhaust ports. The ports of the set 7 are radial and decrease in height from the centre outwards ; the ports of the sets 6, 10 may overlap by being made trapezoidal, and the inlet ports of the set 6 may be directed towards the centre of the baffle 5.
Patent GB-948440-A (GB)
Title: Improvements in semi-conductor devices
IPC: H03K3/313
Filed: 1959-12-15
Abstract: 948,440. Semi-conductor devices &c. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 15, 1959 [Dec. 15, 1958], No. 42646/59. Heading H1K. A negative resistance semi-conductor device comprises a plurality of regions of semiconductor material of alternate conductivity types and including a first region 33 between a second region 32 and a third region 34, the breakdown potential of the first junction J 2  between the first region 33 and the second region 32 being greater than the breakdown potential of the second junction J 3  between the first region 33 and the third region 34 and the resistance to the passage of current through the first region 33 being greater than that through the third region 34, the device also including an electrode 35 for introducing current across the first junction and a current collector 36 on the first region 33, the arrangement being such that in use a portion of the current introduced by the electrode 35 passes across the second junction between the first region and the third region 34, flows through the third region and returns across the second junction to the collector 36 and the remainder of the introduced current flows directly from the first junction through the first region 33 to the collector 36. The first and second regions 32, 33 have a relatively low concentration of doping material disposed therein. The device can include a fourth P+ region to form a PNPN device. A diode, Fig. 5, is made by starting with an N- type crystal of Ge and diffusing in In from a concentration of 10<SP>17</SP> atoms/c.c. at the surface to a depth of 0.001 inch on each side to form the P region 33, the N region 32 and the P+ region 31, though the latter region is not yet heavily doped. The N+ region 34 can be formed by alloying on a sphere of 97% Pb and 3% As to a depth of 0.0003 inch. A circular base tab 36 with a central opening is positioned around the N+ region 34 and soldered to the P region 33. The ohmic connection 35 is made with In solder which heavily dopes the region 31. The portions 42 and 43 of the original crystal are etched away. Etching can be effected electrolytically using a NaOH solution with the P+ region 31 connected to an electrode as anode and is continued until the size of the P region 33 establishes a definite internal resistance. The device can be used as part of a larger device involving more than four regions. Further signals can be introduced at parts of the device such as the N+ region 34 to initiate breakdown, inhibit breakdown or modify operations.
Patent GB-1011326-A (GB)
Title: Improvements relating to catalysts and their use
Inventor: PITKETHLY ROBERT CHALMERS
IPC: B01J23/89
Filed: 1962-11-13
Abstract: Hydrocarbons preferably boiling in the gasoline, kerosine or gas oil ranges are contacted at 420-600 DEG  C., 0-1000 p.s.i.g., 0.1-10 v./v./hr. with 0-10,000 S.C.F./B. of hydrogen in the presence of a catalyst comprising (1) a metal, oxide or sulphide of Group VIA or VIII, (2) at least 10% of an anhydrous neutral sulphate of a metal of Groups II, III, V, VI, VIII, or of Sn, Pb, Ti or Mn, or anhydrous CoSO4 and an inactive support, e.g. silica gel or Al2O3.  Such catalysts show a low activity for cracking and polymerization reactions but a certain activity for isomerization which appears to be a beneficial adjunct to the dehydrogenating and cyclizing activity. Examples describe the treatment of (1) n-hexane to yield methylcyclopentane, cyclopentane and 2- and 3-methylpentane, and (2) n-heptane to yield toluene, methylhexanes and methylcyclohexane.ALSO:A hydrocarbon conversion catalyst comprises a hydrogenating/dehydrogenating component, 10% weight of an anhydrous neutral metal sulphate of Groups II, III, V, VI, VIII or of Sn, Pb, Ti or Mn or anhydrous CoSO4 and an inactive support. Hydrogenating/dehydrogenating component is defined as a metal, oxide or sulphide of Groups VIa and VIII metals.  Neutral metal sulphate is defined as one which yields a 0,1 M or saturated solution having a pH equal to or greater than 6 in distilled water, e.g. those of Ca, Mg and Zn.  Inactive support is defined as a compound having no isomerization activity and a benzene adsorption value of less than 3m moles benzene/gm.  The inactive supports, e.g. silica gel or Al2O3, may have a surface area greater than 100 sq.m./gm.  Comparative examples are given.
Patent GB-893804-A (GB)
Title: Improvements relating to mounting and encasing means for the actuating mechanism of fluid pressure braking apparatus
IPC: B61H1/00
Filed: 1959-12-17
Abstract: 893,804. Brake transmitting mechanisms; automatic wear compensations. WESTING- HOUSE AIR BRAKE CO. Dec. 17, 1959 [Dec. 23, 1958], No. 42911/59. Class 103 (1). A brake unit comprises a casing 6 containing a lever 31 pivotally connected to the piston 14 of brake cylinder 7 and pivotally supporting a brake hanger 5 which pivotally carries a brake head 3 and shoe 1, and a rigid member 50, 52 pivotally connected to the head 3 and connected to lever 31 by ball-and-socket means 46, 48 which allows limited lateral movement of the brake head. Lugs 21 on piston seal 20 form a chamber 23 connected, on braking, to a pressure source via pipe 25, the piston 14 being moved against springs 15, 16 to rotate lever 31 about a pin 38, mounted in casing 6, to move member 50, 52 and apply shoe 1 to the rim of wheel 2. The hanger 5 is pivoted by a pin 55 to casing lug 54 with a rubber bushing between the pin and lug to permit tilting of hanger 5. This tilting and the ball-and-socket means 46, 48 permit shoe 1 to move laterally with the wheel 2. The hanger 5 and rod 52 are pivoted at 53 to head 3 and an extension 59 of rod 52 is connected by a bolt 63 to brake head flanges 61 which have slots 62 to limit the rotation of head 3 about pin 53. The ball-and-socket means comprises a two-part socket 46, Fig. 4, in a bore 44 in lever 31 and a member 48 surrounding a sleeve 50. The clearance of shoe 1 from wheel 2 can be adjusted manually by rotating sleeve 50 relative to rod 52 by means of a nut 68 locked to sleeve 50 by a set-screw 90. For automatic clearance adjustment, a ratchet-wheel 64 is keyed to sleeve 50 and is engaged by a pawl 65, Fig. 5, pivoted at 69 to the spaced jaws 70 of a clevis 71 pivoted at 72 to the lever 31, Fig. 4, a spring 73 biasing clevis 71 to abut surface 84. A spring 78, Fig. 5, biases pawl 65 to engage its cam surface 74 with the wheel 64. On braking, clockwise rotation of lever 31 causes clevis 71 and pawl 65 to move downward relative to wheel 64, the cam surface sliding on tooth 101 and the wheel being held against rotation by a spring-loaded plunger 99, Fig. 4, mounted in lever 31. Should the shoe wear exceed a predetermined amount then pawl tip 75 drops into the space between teeth 79 and 101, so that on brake release the pawl 65, on being returned to its initial position by lever 31, rotates wheel 64 and hence sleeve 50 until tip 75 is disengaged from wheel 64 by cam surface 74 engaging a tooth. The brake may be applied by rotation of a lever 93, by a cable, pivoted at 92 to casing 6 and having a bifurcated end 95 to engage pivot 30 by which lever 31 is connected to piston-rod 26. Dust excluding boots 97, 85 enclose the apertures in the casing 6.
Patent GB-1353346-A (GB)
Title: Gas lighters
IPC: F23Q2/16
Filed: 1971-09-15
Abstract: 1353346 Gas lighters S T DUPONT 15 Sept 1971 [15 Sept 1970] 42933/71 Heading F4F A gas lighter comprises an outlet conduit 9 formed in a burner 4 which can pivot from a rest position shown in full lines in Fig. 1, to an operative position shown in broken lines in which latter position the burner outlet extends through an aperture 2 in the lighter casing, and a device for controlling gas flow through the conduit comprising a pivotable lever 14 which opens a shut-off valve 12. The burner 4, formed integrally with a screen 3 which closes the aperture 2 in the rest position, is pivoted by rotating a driving device 24 whose movement is transmitted by a link 23 and a roller 25 to the burner. At the same time a ball 20 mounted below the upstream end of the burner rides up an inclined surface 18 of a member 16 thereby pushing down the member to pivot lever 14 and open valve 12. To close the lighter the device 24 may be turned in the opposite direction whereupon a pin 22 mounted on the link 23 engages a housing of the burner to pull the latter shut or alternatively the screen 3 may be pushed in and a spring 30 raises the member 16 to shut the screen and close the valve 12. A knurled flint wheel (not shown) may be mounted on the end 28 of the driving device 24. The device 24 may be replaced by a push-rod or lever or alternatively a spring and ratchet driving system may be used.
Patent GB-1157975-A (GB)
Title: Cut-Back Asphalt Compositions
IPC: C08L95/00
Filed: 1966-09-26
Abstract: 1,157,975. Asphalt-hydrocarbon resin mixtures. TREMCO MFG. CO. 26 Sept., 1966 [27 Sept., 1965], No. 42945/66. Heading C3N. A coating composition comprises: (a) cutback asphalt; 1-100% wt. based on (a) of a hydrocarbon resin; and 0À02-12% wt., based on (a)+(b), of (c) a wetting agent, (b) is a compatible aromaticcompound-containing resin of M.W. 200-1500, and may be derived from petroleum-cracking by-products; the aromatic portion may comprise polymerized polynuclear hydrocarbons and contain 2% free C. (a) may be 60-80% wt. asphalt of softening-point 100- 200‹ F. and PEN 20-60 in 40-70% wt. hydrocarbon solvent of b.p. 200-360‹ F. (a) may have flash-point 500‹ F. (c) may be anionic, e.g. petroleum sulphonates or alkyl sulphates, e.g. lauryl sulphate cationic, e.g. quaternary ammonium compounds, e.g. alkyl dimethyl benzyl ammonium chloride; or nonionic, e.g. alkyl phenol polyglycol ethers, sorbitan monoleate, or polyoxyethylene sorbitan trioleate. The composition may comprise (d) fibres, e.g. #-1¢- inches in length, forming 0À1-7À5% wt. of total composition: e.g. hogs' hair, horse-hair, wool, or glass fibres. Also present may be 10-50% wt., based on total composition, of filler, e.g. asbestos, CaCO 3 , Mg silicate, or clay. The composition is weather-resistant and may be used as a roof-coating or mastic roof cement. Multiple layers can be used.
Patent GB-928109-A (GB)
Title: Improvements in or relating to electrical coil assemblies
Inventor: HALLETT LEONARD WALTER
IPC: H01F17/04
Filed: 1961-11-30
Abstract: 928,109. Direct connection between conductors. STANDARD TELEPHONES & CABLES Ltd. Nov. 30, 1961, No. 42957/61. Class 38 (1). [Also in Group XXXV] The wires 6, 7, 8, 9 (Fig. 2) pass through lateral holes in the insulating block 1 and are bent so that after being joined to the wires 11 12, 13, 14, which may come from an electrical coil, the joints may be concealed and protected in the deep slots 2, 3, 4, 5 (Fig. 1) which are cut in the face of the block so as to include the associated hole at one of its extremities. The block may be cemented to a coil and the assembly encapsulated. Specification 829,736 is referred to.
Patent GB-1046350-A (GB)
Title: Improvements in or relating to protection arrangements in transformer-operated circuits, especially for x-ray tube operation
Inventor: GUNTER RONALD LESLIE
IPC: H05G1/54
Filed: 1964-10-22
Abstract: 1,046,350. Protective arrangements. GENERAL ELECTRIC CO. Ltd. Sept. 30, 1965 [Oct. 22, 1964], No. 43125/64. Heading H2K. A protective circuit particularly for an X-ray system having a high-voltage transformer 10 whose voltage may rise to an undesirable level on open circuit comprises a relay 13-15 responsive to harmonic voltages connected across a filament transformer 3-5 so that the relay is operated by the harmonic content of the magnetizing current should the secondary become open-circuited. The relay may be tuned to harmonic resonance by a capacitor 14, or a supply of fundamental frequency may be applied to a separate or the same winding in opposition to the voltage across the winding 5.
Patent GB-1140078-A (GB)
Title: Improvements in or relating to disc brakes
Inventor: CHOUINGS LESLIE CYRIL
IPC: F16D65/12
Filed: 1966-09-27
Abstract: 1,140,078. Brake discs. AUTOMOTIVE PRODUCTS CO. Ltd. 7 July, 1967 [27 Sept., 1966], No. 43159/66. Heading F2E. The cylindrical or frusto-conical web 13 connecting one edge of the annular friction portion 10 of a brake disc to the mounting flange 12 has circumferential segments 15, 16 each of progressively varying radial thickness, some segments being of different length. The nodal points of vibration are thus broken up and squeal is reduced. As shown, the segments are of arcuate form with alternate ones of different radius. The segments may extend over the whole of or part of the axial length of the web.