baber/WOPTO huggingface dataset:
Patent GB-796279-A (GB)
Title: Miniature electric thermostat
IPC: G05D23/275
Filed: 1957-02-28
Abstract: 796,279. Thermal switches. PETERCEM. Feb. 28, 1957 [March 21, 1956], No. 6730/57. Class 38 (5). A bimetal strip 8 of a miniature thermostat is mounted between spring strip supports 2, 3 in such a manner that when cold it bears on an enclosing metal casing 9 but when hot snaps into engagement with a contact 7. The parts are mounted on a holder 1, having folded-down portions 1b, 1c which secure, respectively, the strip 2 and an insulated conductor 5 carrying fixed contact 7. Folded-in portions 1d, 1e of the holder 1 serve as supports, respectively, for an adjustment screw 12 for strip 2, and for strip 3 and a conductor 4. The strips 2, 3 have apertures receiving tongue-like ends of the strip 8, the concave surface of which is silvered to serve as a contact. The strip 8 is assembled between supports 2, 3 with its high-expanding side downwards, and the holder 1 is then inserted in casing 9 so as to compress the strip 8 between the casing and supports 2, 3. When the strip heats, an increasing force in the circuit closing direction is set up and once the strip moves, it snaps rapidly to closed position in which it coincides with the plane between its supports 2, 3, as shown dotted in Fig. 1. To prevent damage by crushing, the conductor 5 has wings 5a, 5b which are insulated by mica strips 10, 11 from the casing and holder. The end cavities 13, 14 may be sealed with " Araldite " (Registered Trade Mark).
Patent GB-754548-A (GB)
Title: Improvements in deflector plates for carding engines
IPC: D01G15/20
Filed: 1954-03-09
Abstract: 754,548. Carding-engines. JOHNSON, G. Feb. 28, 1955 [March 9, 1954], No. 6766/54. Class 120 (1). In a cotton carding-engine, a deflector plate D secured to the underside of and extending longitudinally below the dish feed plate B over which the.lap 1 passes to the taker-in roll A comprises a longitudinal slot or slots, as at d<SP>1</SP>, to allow trash extracted from the lap to fall therethrough. As shown, the plate D is adjustably secured by set screws b passing through slots d and has a knife edge adjacent the taker-in. The plate D may be mounted on a base plate secured to ribs on the underside of the plate B, Fig. 2 (not shown), and the depth of the ribs varied to provide adjustment of the plate D. The slots, as at d<SP>1</SP>, may be in parallel rows, tapered ends d<SP>2</SP> thereof may be radiused, and the slot or slots may be covered with perforated metal or gauze.
Patent GB-591154-A (GB)
Title: Improvements in snap action electric switches
IPC: H01H5/04
Filed: 1945-03-28
Abstract: 591,154. Snap-action switches; retractive switches. DEHN, F. B. (Hetherington & Son, Inc., R.). March 28, 1945, No. 6771. [Class 38 (v)] In a snap-action switch a contact-bridging bar carries parallel springs which engage tapered surfaces on a plunger, so that movement of the plunger results in movement of the bridging bar to connect or disconnect a pair of fixed contacts. In Fig. 2, the bridging bar comprises a metallic plate 57 secured to a preferably insulating plate 58, between which plates a pair of springs 72, 73 is secured. As shown in Fig. 6, projections 64, 65 on the plate 58 register with notches 63 in the plate 57, the springs 72, 73 being retained between the plates by ears 67, 68. The Specification describes with drawings other forms of the bridging bar. When a spring- returned insulating button 32 is depressed, a plunger 39 having tapered surfaces 54, 55, moves through the bridging bar until the crest 56 passes the springs 72, 73, whereupon the bar snaps over and bridges contacts 48, 49. The surface 55 is of steeper slope than 54, so that the opening movement is more rapid than the closing movement. In Fig. 10, the casing 25 and the button 32<1> are both conducting and earthed, and the insulating sleeve 36<1> has a metallic end 37' whereby the contacts 48', 49<1> are earthed when the button is depressed. In Fig. 16 (not shown), the push-button return-spring is omitted and the casing is threaded for mounting purposes. In Fig. 21, the plunger 39 is secured to a spring- loaded cylindrical guide 92 which is moved within the casing 25 by a cam-lever 89. In Fig. 25 (not shown), depression of the button opens normally-closed contacts.
Patent GB-1378472-A (GB)
Title: Apparatus for manufacturing conveyor belts
IPC: B29B15/00
Filed: 1973-02-12
Abstract: 1378472 Forming conveyer belts CONTINENTAL GUMMI-WERKE AG 12 Feb 1973 [14 Feb 1972] 6776/73 Heading B5A [Also in Division B3] Apparatus for manufacturing a vulcanized conveyer belt 14 having embedded reinforcing plies 4 of wire or cable form comprises two separate clamping devices consisting of synchronously driven friction rollers 1-3 and 11-13 serving to stress the reinforcing plies and the vulcanized belt respectively, and at least one friction roller having an associated pressing roller 7 adapted to press against the outer circumference of the plies and belt during passage over the friction rollers. Steel wires 4 are drawn from reels 5 in a reel frame II and pass around friction rollers 1-3 and enter a conveyer building-up device III where they are subjected to stress, lined with cover plates and passed through a vulcanizing press. The formed belt passes over rollers 11-13 and is wound onto a storage drum. Rollers 1-3, 11-13 are driven by common electric or hydraulic motor 6 via power lines 16. In order to contain the tensile forces between the feed and delivery friction rollers, pressing rollers 7 are used. The rollers 7 are displaceable through pressure cylinders 8 and are covered by a sheath of abrasionresistant rubber or plastics material.
Patent GB-1533431-A (GB)
Title: Compressible printing plate mount
IPC: B41F27/12
Filed: 1976-02-20
Abstract: 1533431 Coated sheet material MINNESOTA MINING & MFG CO 20 Feb 1976 [21 Feb 1975] 6848/76 Heading B2E [Also in Division B6] A compressible mounting material 10 suitable for supporting a flexographic letterpress printing plate 22 upon a plate cylinder 21 comprises in laminated combination an elastomer layer 11 having at least 30% uniformly distributed voids, the layer having a Shore A-2 hardness value of at least 20 when void free, each void having a maximum dimension of less than 300 microns, a shape corresponding to a minute rigid-walled frangible bubble and containing the broken walls of the bubble, a dimensionally stable reinforcing layer 12 adherently bonded to the elastomer and a pressure-sensitive adhesive layer 14, 15 adherently bonded to each face of the composite. The elastomer may be a polyurethane, poly(acrylonitrile-butadiene) a polychloroprene, the reinforcing layer of non-woven nylon fabric or a biaxially oriented, heat set, polyethylene terephthalate film, the bubbles of glass or phenolic resin and the adhesive an acrylate copolymer. The material may be made applying a slurry of elastomer layer forming material to a surface of a polyethylene terephthalate film adhered to a pressure sensitive layer protected by a release liner, curing and grinding the free surface of the elastomer, calendering the composite to crush the bubbles and applying a further layer of pressure-sensitive adhesive.
Patent GB-983380-A (GB)
Title: A method of separating plutonium and uranium together from aqueous solution
Inventor: MILLS ALFRED LEONARD
IPC: G21C19/46
Filed: 1963-02-20
Abstract: 983, 380. Processing nuclear fuel. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Feb. 6, 1964 [Feb. 20, 1963], No. 6915/63. Drawings to Specification. Heading G6R. In the processing of a nitric acid solution of mixed uranium-plutonium nuclear fuel in which the solution is contacted with an organic phase comprising tributyl phosphate in an inert diluent, plutonium and uranium being extracted into the organic phase, leaving fission products in the aqueous phase, plutonium and uranium are returned to aqueous solution by backwashing the organic phase with aqueous sulphuric acid of such concentration and in such volumes that the ratio of plutonium moles in the organic feed to the sulphuric acid moles in the aqueous feed is in the range 1 to 1. 5-2. 5. Nitric acid may be added to the resulting aqueous phase and the extraction process repeated. Reference has been directed by the Comptroller to Specification 801,743.
Patent GB-364926-A (GB)
Title: Improvements in or relating to dust removal means for water gas plants
IPC: C10K1/04
Filed: 1931-03-06
Abstract: 364,926. Water gas plant. POWERGAS CORPORATION, Ltd., Parkfield Works, RAMBUSH, N. E., Ivy Bank, West Villas, and BALLINGHALL, J. M., 69, Richmond Road, all in Stockton-on-Tees. March 6,1931, No. 6966. [Class 55 (i).] In a water gas plant, liquid seals are provided on ducts leading downwards from 'zones of potential explosion for the purposes of guarding against the latter and allowing of dust removal. Ducts 12 .. 16 dip into a water trough 61 from the generator 1, carburettor 2, superheater 3, and waste heat boiler 4 respectively of a water gas plant. The extended shell 17 of a washer 6 also dips into the trough. If tarry matter is present a seal box 5 is provided. Gases enter the latter by pipe 18 and the water level is maintained by water flowing from a flushing tank 20 to a nozzle 22 at the bottom of the seal box. Dust and tar is forced into the trough 61 through an overflow pipe 25 and the liquid level in the seal is kept constant by adjusting the rate of flow of flushing liquid from the tank 20.
Patent GB-1073884-A (GB)
Title: Process for oxidizing a 1,1-bis-(alkylphenyl) alkane
IPC: C07C51/265
Filed: 1965-02-18
Abstract: 1,1-Dixylylethylene and 1,1-ditolylethylene are obtained (with other compounds, see Division C2) by oxidizing the corresponding dixylyl- and ditolyl-ethanes with O2 at 25-110 DEG  C. in presence of 0.02-10 weight per cent of an organic salt of a transition metal.ALSO:A mixture containing a benzophenone(mono)-carboxylic acid is made by oxidizing a 1,1-bis-(C1- 16-alkyl phenyl)-C2- 16-alkane with O2 at 25-110 DEG  C. in presence of 0.02-10 wt. per cent of an organic salt of a transition metal. The mixture (or extracted components) may be further oxidized with HNO3 to benzophenonepolycarboxylic acids. Examples are given of the conversion of 1,1-dixylylethane (I) with O2 to dixylylmethylcarbinol, tetramethylbenzophenone (II) and trimethylbenzophenonecarboxylic acid (III) and of 1,1-ditolylethane to ditolylmethylcarbinol, dimethylbenzophenone and 4 - methylbenzophenone - 41 - monocarboxylic acid; HNO3 oxidation of the mixture obtained from I, or of the extracted II or III, gives benzophenone-3,4,31,41-tetracarboxylic acid.
Patent GB-1334801-A (GB)
Title: Spinning devices
IPC: D01H4/40
Filed: 1971-03-16
Abstract: 1334801 Open end spinning SPINNEREIMASCHINENBAU KARL-MARX-STADT VEB 16 March 1971 7000/71 Heading DID An open end spinning device comprises a rotor which receives fibres by suction on a surface which has an adjacent guide for locating the end of yarn being spun and preventing the end rotating around the rotor, the collecting surface in the rotor being limited by air holes in the side wall (as shown) or in the bottom (Figs. 4 and 5 not shown) of the rotor. The guide can be a pin 15 or a hole in the bottom of the rotor. A sieve 16 may cover the air outlet holes.
Patent GB-1377191-A (GB)
Title: Catalyst and oxidation process
IPC: C01B21/26
Filed: 1971-03-17
Abstract: 1377191 Oxidation catalyst IMPERIAL CHEMICAL INDUSTRIES Ltd 2 March 1972 [17 March 1971] 7080/71 Heading B1E [Also in Division Cl]  A catalyst comprises metallic cobalt or cobalt oxide or both supported on a mixed oxide material having predominantly a spinel structure and being substantially free of uncombined oxide capable of forming a spinel with cobalt oxide, i.e. containing less than 5% wt. of any divalent or a tetravalent oxide capable of forming such a spinel or less than 1% wt. of any trivalent oxide capable of forming such a spinel. Suitably both oxide components of the spinel are difficultly reducible, re alumina, magnesia, zircia, titania, zirconia or chromia. The catalyst may have a specific surface of 10-200m<SP>2</SP>/gm. The Example relates to cobalt oxide on magnesia-alumina spinel.
Patent GB-1412444-A (GB)
Title: Dies for use in the making of heat exchangers
Inventor: KUN L C
IPC: B21D22/04
Filed: 1972-10-13
Abstract: 1412444 Casting; sheet forming UNION CARBIDE CORP 13 Oct 1972 [15 Oct 1971] 7128/75 Divided out of 1412442 Heading B5A [Also in Division B3] In the production by any conventional means such as pressing, stamping or rolling of a heat exchange wall having bubble-shaped protrusions thereon, e.g. shown in Figs. 1 and 3A (and Figs. 6 and 7) and formed of a thin sheet material, e.g. metal such as aluminium, copper, steel, titanium, metal alloy such as brass, clad metals, platics, or plastics-coated metals, a die (formed by material 34, Fig. 2B) is utilized having recesses 37 therein shaped to provide the protrusions in the heat exchange wall. Each recess and associated base portion in the die (see Figs. 1 and 3A) has the following proportions; a D/d ratio in the range substantially 3 to 10, an H/D ratio in the range substantially 0À05 to 0À2, and a D dimension in the range substantially 0À2 to 2À5 inches, where H is the depth of the recess, D is the distance between the centres of adjacent recesses, and d is a dimension of the base of each recess and is defined by the ratio Aa/p wherein a is the planar area defined by the perimeter of the respective base and p is the perimeter length of the respective base. The die is made by securing a rubber membrane 29, Fig. 2, over projections 26 formed on a block 21, the membrane being clamped at its periphery by clamping means 30, 31. Suction is then applied by a vacuum pump 24 via ducts 22 in the block 21 to the underside of membrane 29 so that the membrane is sucked downwardly between the projections 26 and assumes the shape shown in Fig. 2B. Thereafter the die forming material 34 (e.g. expoxy resins, thermoplastics, cement or concrete) is deposited on the membrane and allowed to cure. After curing the block of material 34 is removed from the block 21 and may be used as a master cast for the fabrication of a mould or it may be used as a die with or without a suitable die-casting coating.
Patent GB-268121-A (GB)
Title: Improvements in and connected with concrete blocks
IPC: E04B2/14
Filed: 1926-03-16
Abstract: 268,121. Johnston, D. March 16, 1926. Blocks, special shapes of.-A block is provided with (1) vertical and horizontal inter - connecting through passages B, C respectively; (2) all-round V-shaped grooves E at each side to receive grout (3) holes or recesses such as D for receiving the ends of joists and for the insertion of wooden plugs to which the laths mav be nailed; and (4) recesses such as F to retain the plaster covering in position. The surfaces G of the horizontal passage may be curved as shown in Fig. 5. In addition the upper and lower portions may be formed one with a centrally-situated tongue and the other with a groove.
Patent GB-855147-A (GB)
Title: Improvements in or relating to apparatus for artificial respiration
IPC: A61M16/00
Filed: 1959-03-02
Abstract: 855,147. Respiratory appliances. DRAGER, O. H. March 2, 1959 [Feb. 28, 1958], No. 7246/59. Class 81(2) Artificial respiration apparatus includes a valve actuated by a pressure responsive device to change the valve from an exhalation position to an inhalation position and vice versa when a critical pressure is reached, the actuating device including a movable magnetic member which co-operates with a magnetic system, the magnetic forces between the member and the system determining the critical pressures at which the valve changes over from one position to the other. A chamber 7 communicates with the lungs 9 and one end of a conduit 1 in which suction is produced by gas supplied continuously through a nozzle 2, the other end of the conduit having an exhaust valve 5. The conduit 1 also communicates with the chamber 7 through a valve 3 connected by a lever system 8 to a diaphragm 11, which is subjected to atmospheric pressure on one side and the chamber pressure on the other side, and to a soft iron armature 13 which is movable between magnets 12, 14. Exhalation is produced when valve 3 is closed, exhaust valve 5 being open so that gas is exhausted from the chamber and the lungs by suction in the conduit. When the chamber pressure reaches a minimum determined by the magnetic force between the armature and one magnet 12, the diaphragm 11 moves inwardly of the chamber, pulls the armature away from the magnet 12 and towards the second magnet 14 and operates the lever system 8 to open the valve 3. Gas then flows from the conduit into the chamber and the lungs to effect an inhalation and the exhaust valve 5 closes. When the chamber pressure reaches a maximum determined by the force between the second magnet 14 and the armature 13, the diaphragm 11 moves outwardly of the chamber, pushes the armature towards the magnet 12 and closes the valve 3 so that exhalation is again effected and valve 5 is' opened: The magnets may be permanent magnets or electromagnets and each is associated with a member 15, 18, e.g. a magnet; a soft iron armature or an electromagnet, which is linearly or rotationally displaced relative to its associated magnet to vary the effective magnetic force between each magnet and the armature thus controlling the critical pressures at which the diaphragm changes from one position to another. In an alternative construction the armature replaces the valve 3 and moves between centrally apertured magnets which form valve seats. Specification 729,364 is referred to.
Patent GB-374917-A (GB)
Title: Improvements in and relating to high tension multi-core electric cables
IPC: H01B9/06
Filed: 1931-03-09
Abstract: 374,917. Cables. FELTEN & GUILLEAUME CARLSWERK AKT.-GES., M³lheim, Cologne, Germany. March 9, 1931, No. 7262. Convention date, April 14, 1930. Addition to 342,243. [Class 36.] An oil reservoir for the oil-filled multicore cable installation described in the parent Specification, in which the spaces between the cable cores are filled entirely with oil and in which non-return valves are provided in the oil inlet pipes, consists of a flexible oil pipe laid parallel with the cable and connected thereto at definite distances by pipe connections. The flexible pipe, which is preferably formed of lead and provided with an interior supporting member such as a wire helix, may be armoured with a closed winding or braiding of flat, circular, or profile wires.
Patent GB-170241-A (GB)
Title: Means for opening tin cans
IPC: B67B7/16
Filed: 1921-03-07
Abstract: 170,241. Stokke, T. March 7, 1921. Opening by cutting or tearing.-The cover of a tin is weakened along a line 2 parallel to the seamed edge; the weakening line may be situated along the bottom of a groove 11, Fig. 6, or along the underside of a ridge 13, Fig. 10, or close to the edge of a dished or pressed up part. A bluntedged opener of iron is employed and may be of the form shown in Fig. 3 with a part 4 to engage under the seamed edge of the cam and a laterally extending wing 5 adapted to be turned as shown to break the cover along the weakened line. Fig. 13 shows a claw-ended opener 19, operating by pressing inwardly the edge 12 and so breaking the cover.
Patent GB-547280-A (GB)
Title: Improvements in or relating to switching means for interconnecting co-axial conductors
IPC: H01P1/12
Filed: 1941-06-11
Abstract: 547,280. Mechanical switches without quick action. STANDARD TELEPHONES & CABLES, Ltd., KRAM, W., and JARVIS, F. L. J. June 11, 1941, No. 7388. Addition to 513,287. [Class 38 (v)] Rotation of a shaft 25 by the handle shown into, say, two alternative positions connects the inner and outer conductors of an incoming coaxial cable to the inner and outer conductor of either of two outgoing cables and simultaneously connects the inner conductor of the other outgoing cable to its outer conductor through an " equivalent resistance, the inner conductors being completely screened by the outer conductors. The inner and outer conductors of the incoming cable are connected respectively to a stud 9 and sleeve 7 and the like parts of the outgoing cables to studs 5 and sleeves 7 which terminate in contacts. The handle and shaft 25 rotate a contact-carrying member 11 which carries a brass tube fitting into a bearing 4 fixed to the sleeve 7 of the incoming cable and stud and sleeve contacts adapted to engage the stud and sleeve contacts of the outgoing cables. The member 11 also carries two pairs of stud and sleeve contacts, Fig. 3, adapted to engage respectively the stud and sleeve contacts 5, '2 of the outgoing cable that is not already engaged and one of two studs 3 on the panel 1. A resistance 21 connects the stud contacts 19 and the stud 3 therefore serves to connect the left-hand stud 19 to the sleeve contact round it through the resistance.
Patent GB-1145306-A (GB)
Title: Heterocyclic phosphoric and thiophosphoric acid esters and their use as pesticides
IPC: C07F9/6561
Filed: 1966-02-21
Abstract: 1,145,306. Pyrazolo - pyrimidine (thio-) phosphoric acid esters. FARBWERKE HOECHST A.G. 21 Feb., 1966 [20 Feb., 1965 (2)], No. 7430/66. Heading C2C. [Also in Division A5] Novel compounds of the formula where R 1  and R 2  are C 1-4  alkyl, R 4  is H or C 1-4  alkyl, R 5  is carbalkoxy, carbalkenoxy or acyl, R 3  is H, and X is O or S, are prepared by reacting compounds of the formula where Hal is a halogen atom, either with 2- hydroxypyrazolopyrimidine salts, especially alkali metal salts, or with 2-hydroxypyrazolopyrimidines in the presence of acid-binding substances, especially alkali metal carbonates and tertiary bases. The reactions may be carried out in the presence of a solvent.
Patent GB-731863-A (GB)
Title: Gas-pressure relief valves
Inventor: MUCKLEY HENRY EDWARD
IPC: F16K17/04
Filed: 1953-03-18
Abstract: 731,863. Fluid-actuated valves. BELLIS & MORCOM, Ltd. March 16, 1954 [March 18, 1953], No. 7461/53. Class 135. A gas pressure relief valve which may be used to relieve the pressure in the crank-case of a Diesel or other engine comprises a disc-like closure member e normally urged against an annular seating a by a spring g which abuts against a collar f slidable on a hollow axially arranged stem d on which the valve member is also slidably mounted, the collar normally being restrained against axial movement by a catch which is released by a piston j movable in a shallow cylindrical cavity h in the valve member under the influence of the pressure to be relieved, which pressure opens the valve directly once the catch is released. The catch is formed as a series of balls m urged into a groove in the collar f by a head n on a rod o connected to the piston j by a transverse pin p extending through slots in the stem d and the closure member a. The collar f is reset by a screwed sleeve s which may be screwed on to a fixed collar r attached to the stem d. The sleeve s has a screwthreaded hole engageable by a screw-threaded push-rod adapted to force the head n of the rod o back to the position in which it engages the balls m. A light spring q re-closes the valve when the high pressure has been relieved. The external parts are protected by a cover t. The piston j is loaded by a spring k and the cylinder h is open to the atmosphere by one or more apertures i. The stem d is carried by a spider c.