baber/WOPTO huggingface dataset:
Patent GB-1455333-A (GB)
Title: Electrical conductor assemblies employing superconductor con ductors
IPC: H01B7/30
Filed: 1974-02-13
Abstract: 1455333 Superconductors SIEMENS AG 13 Feb 1974 [14 Feb 1973] 6636/74 Heading H1A An electrical conductor assembly comprises elliptical superconductors 2, each of which may consist of a mobium coating on a high purity aluminium core and be provided with an electrically insulating covering, and outer superconductors 3. Superconductors 3 may be of circular cross-section and may form one coaxial layer only. To minimize alternating current losses it is recommended that the ratio of the length of the major to the minor axis of the elliptical cross-section of the super-conductor 2 should be at least 3:1, and that a the length of the semi-major axis of the ellipse should be given by where m is the number of superconductors 2 and, to minimize Joule losses, sin α, the eccentricity of the ellipse, has a value between sin 70 degrees and sin 75 degrees. Three conductor assemblies may be arranged alongside one another to form a three phase supply cable, the inner conductors 2 of each assembly serving as an outgoing conductor and the outer conductors 3 serving as a return conductor.
Patent GB-115494-A (GB)
Title: Improvements in or relating to Ore Concentrating Tables.
Inventor: TRESTRAIL EDGAR
IPC: B03B5/74
Filed: 1917-05-10
Abstract: 115,494. Trestrail, E. May 10, 1917. Buddling - apparatus. -A buddle of the type having annular beds rotated about a vertical shaft and in which the materials washed from one bed are collected in segmental launders from which they are passed to another of the beds for further treatment, comprises a concave bed A divided into three stages A<1>, A<2>, A<3> of slightly decreasing slope, a convex bed B beneath the bed A, and an inner and lower bed C. The pulp is distributed on to the bed A from launders G, G<1>, and is washed by water from launders J, J<1>. Fixed distributing and washing launders are so arranged between the beds that the tailings and middlings from the bed A are made to constitute the feeds for the beds B, C respectively, and the concentrates from the three beds and the middlings and tailings from the second and third are passed respectively to launders S<2>, S<1>, S.
Patent GB-1356194-A (GB)
Title: Sensing and control systems
IPC: B23Q16/00
Filed: 1971-03-12
Abstract: 1356194 Gauging D H GREENHILL 10 March 1972 [12 March 1971] 6724/71 Heading B3B [Also in Division G3] The timed control arrangement for a machine cutting a workpiece, e.g. coiled springs or metal strips into predetermined lengths, as described and claimed in Specification 1,306,364, is modified by the inclusion of an additional sensor which senses feed movement of the workpiece in excess of the predetermined length by a preselected amount and the control arrangement acts to stop the machine accordingly. A workpiece 11 (Fig. 2) is fed in a direction A by machine 10. The spacing between a resilient blade 28 in its unflexed position and the initial feed point of the leading end of the workpiece determines the min. acceptable length. A timer T1 is set to time out after the normal time for feeding a predetermined length and, if the blade 28 is not contacted by the workpiece in this time period so as to bridge terminals 22, 24 (Figs. 1 and 2), the feed is stopped by the timer. Otherwise the bridging of 22, 24 biases a transistor 19 ON so that relays 18 and 17 are energized and normally closed contacts 17a open terminating the timing by T1. A timer T2 terminates the machine operation if a cutter (not shown) does not sever the workpiece within the time period set by T2, as in Specification 1,306,364. If the machine continues to move the workpiece so that the blade 28 is flexed thereby until it engages the tip of a micrometer 25 spindle, terminals 23, 24 are bridged thereby. A transistor 21 is thus biased ON causing energization of a relay 20 which may be arranged to terminate the feed movement and/or actuate an alarm, and additionally open switch 18a to stop operation of timer T2. Alternatively the timer T1 may be set to timeout in a period such that two or more short lengths may be severed before it causes machine stoppage. Thereby transient malfunctions are ignored.
Patent GB-283015-A (GB)
Title: Improved bottom door fastener bracket for railway wagons
IPC: E05B65/14
Filed: 1927-03-11
Abstract: 283,015. Bailey, D. G. March 11, 1927, Multiple fastenings for wagon bottom doors of the known type shown have the bracket 3 in which the handle 2 may be secured by the usual transverse pin, not shown, wrought or forged from a single piece of metal and of U-form (as shown in plan, Fig. 3), to provide the handlereceiving recess. The bracket is provided with a flange 3<a> by which it is secured in place, and with upstanding lugs 3<b>.
Patent GB-491919-A (GB)
Title: Piston rings
IPC: C21D9/40
Filed: 1937-03-09
Abstract: Piston rings having a soft bearing surface and a hard internal peripheral portion are produced by drawing the temper from the outer peripheral portion of a hard steel ring or of a soft steel ring previously hardened.  The external portion of the ring is heated to a temperature sufficient to produce a layer of soft steel while the internal peripheral portion is maintained at a temperature at which the ring will retain its original inherent elasticity.  The rings may be stacked and clamped in a pile coaxial with each other and the outer surface either heated by a torch or by being revolved in a bath of molten lead, a cooling medium being passed through the interior of the pile of rings.
Patent GB-966950-A (GB)
Title: Improvements in or relating to moulds for the production of wall units or sections of reinforced concrete
IPC: B28B7/24
Filed: 1963-02-21
Abstract: 966,950. Open-top moulds. ENTREPRISES BALENCY & SCHUHL S.A. Feb. 21, 1963 [Jan. 8, 1963], No. 7105/63. Heading B5A. A mould for the production of units of reinforced concrete comprises a fixed vertical panel 1 forming one face of the mould, and a displaceable cheek plate 19 forming the opposite face, the cheek plate being supported for movement in a direction substantially at rightangles to the plane of the panel (by roller tracks 16 extending either side of the stationary panel, rollers 17 being carried by the cheek plate. In the embodiment described, the mould comprises a central frame of two rectangular vertical panels 1 made up of metal frame sections 2 covered on the outer faces with a sheet-metal plate 3, bolted to the floor and joined to each other by a catwalk 5. The upper surface 13 of a box 12 projecting from the lower end of plate 3 forms the mould bottom. Displaceable cheek plates 19 each comprising a framework of metal sections 20 having a flat sheetmetal plate 21 on its inward face, are movable along the roller tracks 16 formed on the lower side of girders 15 attached to the framework 1, by means of double-acting hydraulic rams 26. Each cheek plate 19 is provided with locking devices 30, which co-operate with complementary units 31 on the panels 1. Each moulding chamber is provided with two lateral cheek plates 34 hingedly secured to the adjacent panel 1. The mould may be filled by means of a pipe attached to a source of concrete, the filling being controlled by a valve operative from the catwalk. Heating elements may be incorporated in the panels 1.
Patent GB-930405-A (GB)
Title: Improvements in or relating to the feeding of articles from a bulk supply to a conveyor
Inventor: BARR WALTER LIONEL
IPC: B65G65/48
Filed: 1960-03-01
Abstract: 930,405. Feeding sweets. ROSE BROS. (GAINSBOROUGH) Ltd. Feb. 20, 1961 [March 1, 1960; April 19, 1960], Nos. 7133/60 and 13552/60. Class 78 (1). Sweets 32 (Fig. 3) are fed from hub 11 through tube 13 by the rotation thereof, the tube being journalled in bearings 16 and 17 and being rotated at 19 by belt 21. The tube is formed with an opening 14 the plane of which is perpendicular to the central axis of the hopper. Endless conveyer belt 31, Fig. 2.-A plurality of hoppers 11 are arranged on either side of endless belt 31. Above the belt are fixed guides 37 forming lanes into which the respective hoppers discharge the sweets. Belt 31 feeds the sweets to corresponding lanes on the belt 39. Belt 39 moves more slowly than the belt 31 so as to retard the sweets to form files ready for packaging. In order to keep the files of sweets full, feelers 42 are provided pivoting about a horizontal axis into the respective line of sweets. When a sweet is missing at the end of a file a feeler 42 pivots downwardly and operates a switch 33 to rotate a corresponding tube 13 to cause a hopper to feed sweets into the appropriate lane. Specification 927,460 is referred to.
Patent GB-622377-A (GB)
Title: Improvements in electrical connectors
IPC: H01R4/02
Filed: 1947-03-14
Abstract: 622,377. Wire couplings. WESTERN ELECTRIC CO., Inc. March 14, 1947, No, 7153. Convention date, March 26, 1946. [Class 38 (i)] In a multiple connector comprising separable blocks 10, 15, provided with guide pins 14 to slide into holes 18, and carrying contacts 12, 16, respectively, the contacts are secured together by solder 20. The contacts 12 are preferably stressed to abut the contacts 16 and so retained under tension until the solder is melted, whereupon they spring apart.
Patent GB-589409-A (GB)
Title: Improvements in or relating to pipes
IPC: F16L9/02
Filed: 1945-03-22
Abstract: 589,409. Anti-burst pipes. KAROSS, W. N. March 22, 1945, No. 7209. [Class 99 (ii)] A pipe 10 that will stand internal pressure, such as when water is frozen, has a wall of springy material, such as phosphor-bronze, and uniform thickness shaped with outwardly pointing V-shape projections 11 whose limbs are joined by intermediate portions 12 which may either be circular, Fig. 2, or polygonal in form. The end fittings or jointing sleeves for said pipes are star-shaped to fit snugly on the pipe and are soldered thereon. Specification 398,154 is referred to.
Patent GB-512625-A (GB)
Title: Improvements relating to the manufacture of bearings
IPC: F16C33/14
Filed: 1938-03-08
Abstract: 512,625. Casting composite bearings. BROWNBACK, H. L. March 8, 1938, No. 7214. [Class 83 (i)] Casting processes.-In lining a bearing shell by bringing molten bearing metal into contact with the shell and then chilling, for instance as in Specifications 480,349 and 512,624, the chilling is commenced at one end of the shell and gradually continued along it by lowering into a bath or by jets of liquid.
Patent GB-688637-A (GB)
Title: Improvements in or relating to the coating of sheet material
IPC: B29C48/91
Filed: 1950-03-23
Abstract: <PICT:0688637/III/1> Sheets are coated by extruding a molten film of a normally solid synthetic linear polymer of sharp melting-point to contact with the sheet while still in a molten condition, pressing the film against the sheet and substantially simultaneously chilling the surface of the film remote from the sheet to a temperature below its solidification point.  A sheet 3 of molten polymer may be extruded through the slit-like orifice of the die 2 into the nip 6 of the rolls 4 and 5, rotating in opposite directions.  The roll 4 may be provided with steam coils or other heating means, and the roll 5 be equipped for cold water circulation.  The roll 4 may have a surface of metal or of a compressible material, e.g. rubber, while the roll 5 is normally of metal; its surface may be smooth or embossed.  Sheet material 7 is fed from a supply 8, and either around part of the roll 4, or directly into the nip 6, where it contacts the molten film 3, around part of the roll 5, over a roll 9 and to a storage roll 11.  The film may be formed of ethylene polymers, chlorinated ethylene polymers or polyamides such as polyhexamethylene adipamide, polyesters, polyester-amides, polyanhydrides and polyethers, or mixtures of polymers or copolymers.  Modifiers such as softeners, plasticizers, fillers, pigments, dyes, opacifiers, heat- and light-stabilizers, antioxidants and lubricants may be included. The coatings may be applied to fibrous materials such as paper, wood veneers, woven or knitted fabric composed of fibres of natural or regenerated cellulose, nylons, cellulose derivatives, synthetic resins, asbestos and glass, or non-fibrous materials such as regenerated cellulose sheets, metal foil or sheet and thermoplastic films.  In an Example (Example III), a thin aluminium foil backed with paper is coated with an ethylene polymer, the coated foil being subsequently stripped from the paper backing.  One side of a sheet of paper may be coated with an ethylene polymer, and the other side with the same or a different thermoplastic polymer.  Specification 601,713, (Group VIII), is referred to.
Patent GB-564476-A (GB)
Title: Improvements in rivets
IPC: F16B19/04
Filed: 1943-05-31
Abstract: 564,476. Fastenings. FORD, W. G. May 31, 1943, No. 7464/42. [Class 43] [Also ' in Groups X, XXII and XXV] Fastening devices, for use in building construction for securing sheets, cover panels, slabs, fibre boards, &c. to structural members of roofs, walls and partitions, &c., comprise a rod-like member and a socket or perforated member and are characterised in that during engagement one of the members is so depressed that accidental withdrawal is prevented.. The socket member has a circular hole 30, Fig. 1, that is a sliding fit on the shank 24 of the rod, which may be headed at 26. Lugs 36, 38 cut and bent up from the body of the socket member from an inverted vee and forcible entry of the soft metal shank causes it to flatten at 39 and spread at 42, Fig. 3, so that accidental withdrawal through the hole 30 is prevented. In a modification, a number of holes are formed in the socket member and the lugs 36, 38 are in part formed from the metal thereof and in part by an added strip riveted thereto. In another form, the metal from the hole is displaced into a surrounding flange that converges towards the end in one plane and diverges on the plane at right angles. In another form, the socket member 83, Fig. 8, has strip metal riveted in at 96, the strips converging at 94 over the hole to effect the deformation of the rod member 20. The strip is inset at 90. In a further form, the rod member 100, Fig. 12, is thinned at 108 to form a lateral bulge round which the socket 102 deforms. The sockets may be encased in steel work or embedded in cast iron, concrete plastics, &c.
Patent GB-907786-A (GB)
Title: Process for the preparation of diglycosylureas
IPC: C07H13/12
Filed: 1961-03-01
Abstract: 1,3-Diglycosylureas are prepared by heating at least two molecular proportions of an aldose with one molecular proportion of urea in a C1-4 aliphatic carboxylic acid reaction medium to a temperature of 50 DEG  to 95 DEG C. under a pressure substantially below atmospheric so that the water formed in the reaction is removed by distillation from the reaction mixture as it is formed. The reactants are preferably heated with the reaction medium at 90 DEG  to 95 DEG C. under atmospheric pressure until they have dissolved, after which the temperature is maintained at 70 DEG  to 90 DEG C. and the pressure is lowered to that to be used for the reaction, the latter being terminated when substantially the theoretical quantity of water formed in the reaction has distilled off.  Any acid removed with the water may be replaced by further acid as the reaction proceeds. Specified catalysts for the reaction are Friedel Crafts catalysts, methanesulphonic acid, dibutyl tin diacetate and boric acid. Specified C1-4 aliphatic acids are acetic, propionic and butyric acids.  Specified aldose reactants are glucose, mannose, galactose, rhamnose, arabinose and xylose.  Specification 903,398 also is referred to.
Patent GB-346541-A (GB)
Title: A process and apparatus for the combined pneumatic drying and subsequent pneumatic heating of materials
IPC: C10B49/08
Filed: 1930-03-07
Abstract: 346,541. Drying during suspension in gaseous currents. ROSIN, P., 86, Bautznerstrasse, Dresden, Germany. March 7, 1930, No. 7551. Convention date, March 9, 1929. [Class 34 (ii).] Coal &c. in a finely-divided condition is dried in the cool part of a current of flue gas, separated therefrom, and heated in the hot part of the current. The coal is fed through an air-lock o into the cool part of the gas current passing through the ducts f, g and is carried to a sifter h from which the dried coal is carried to a cyclone separator l, while the damp coal passes through a duct i to a rotary disintegrator k from which it returns to the duct g. From the separator l the dried coal passes through a duct q into the hot part of the gas current and is carried through the pipe system b, c, d to a cyclone separator e. The flue gas passes from the separator e to the duct f in which it entrains moist coal and the heated coal is discharged to a conveyer d. Specification 310,358, [Class 34 (ii), Drying systems &c.], is referred to.
Patent GB-565589-A (GB)
Title: Improvements in or relating to spray gun mountings
IPC: B05B13/02
Filed: 1943-05-13
Abstract: 565,589. Mounting spray guns. SMITHER, C. L., and DECORATIVE PAPER CO., Ltd. May 13, 1943, No. 7627. [Class 69 (iii)] A spray gun 10, 11 is held in the split clamp 15 of a slidable carrier 14 with channels 17, 18 clamped in desired position on tubular rails 27, 28, by screws 22-25, at least one of the channels e.g. 18 being wider and deeper than the rail 28 to allow for transverse adjustment on the pair of rails. The screws 22, 25 are non radial to the tubes and are pointed to effect a tight grip on the tube, the top screws 23, 24 being non-pointed. Alternative holes e.g. 26 for the screws are provided in the carrier 14. The rails are adjustably mounted in rectangular frameworks of four corner pillars 29 and are transversely adjustable by sliding then along flat bars 44 carried in sleeves 41 which can be raised or lowered by nuts 40 on the corner pillars. Several frames can be coupled together to receive a number of spray guns arranged to spray as desired on work which may be conveyed in front of the guns in a continuous, reciprocating, or intermittent movement.
Patent GB-738998-A (GB)
Title: A device for trimming off the ridge from welded chain links
IPC: B21L15/00
Filed: 1953-03-19
Abstract: 738,998. Trimming welded joints; broaching. ESSER, P., [trading as MEYER, ROTH & PASTOR]. March 19, 1953 [March 22, 1952], No. 7677/53. Classes 83 (3) and 83 (4). In a device for trimming the ridge off a welded chain-link limb for use in conjunction with means for automatically feeding the link, a saddle for supporting the unwelded limb and means for holding the link on the saddle during trimming, a trimming knife embraces the welded limb over a part of its periphery and can be thrust longitudinally along it and swung in the peripheral direction. In an embodiment a link 13, Figs. 1 and 4, is held on a saddle 10 by a pair of jaws 12 and a knife 19 mounted in a holder 18 on a member 17 and having a 180 degree edge 20 and two edges 21, 22 parallel to the limb, is moved forward, the edge 20 removing the upper part of the ridge. The member 17 is rotated through 90 degrees or a little more to the portion shown in Fig. 4 when the edge 22 removes part of the remaining ridge. The knife is swung back through 180 degrees or a little more and the edge 21 removes the remainder of the ridge. In modifications the edge 20 is replaced by two helical &c. edges meeting in arrow-form or the edges 21, 22 may be helically arranged. The knife may have only two edges, these being helical &c. and meeting in arrow form. A single-edged knife may be moved forwards to cut and is swung at the end of a return stroke, to cut again in a different angular position on the next forward stroke. An apparatus for mounting on a chain-welding machine comprises a shaft 37, Fig. 9, carrying a knife 47 similar to the knife 19. An electric motor rotates a shaft 29 carrying two cams, one of which engages a roller 32 on a lever 30 and the other of which engages a roller on a lever 39. The lever 30 carries a toothed sector, meshing through a wheel with teeth 38 on the shaft 37 to rotate it, and the lever 39 has a forked end engaging a groove 45 in the shaft 37 to reciprocate it. Rotation of the shaft 29 effects the swinging and longitudinal movements of knife 19 also.
Patent GB-713645-A (GB)
Title: Improvements in and relating to electrically conducting porous materials
IPC: H01B1/00
Filed: 1951-04-03
Abstract: An electrically conducting porous material comprises agglomerated ceramic grains which are superficially metallized. Metallization may be effected by impregnation with a metallization mixture or by vapour deposition or cathodic projection. Agglomeration may be effected by means of an enamel or by welding by means of the fusion of the coating metal.  Porosity may be increased by adding a combustible body such as sawdust which liberates a gas on subsequent burning.  In examples, the metal deposited is silver or gold, or alternatively a metallization powder consisting of copper oxide may be used after which the body is immersed in an alkaline solution and brought in contact with aluminium until all the black spots are removed.
Patent GB-1130569-A (GB)
Title: Improvements in power-operated doors
Inventor: BUTLER RICHARD ARTHUR
IPC: E05F15/14
Filed: 1965-02-23
Abstract: 1,130,569. Closures resisting pressure. BRITISH STERILIZER CO. Ltd. 18 Feb., 1966 [23 Feb., 1965; 27 May, 1965], Nos. 7741/65 and 22638/65. Heading F2P. [Also in Divisions A5, B1 and E2] A sliding door 4 for an autoclave has slight movement perpendicular to the door frame 2 when in the closed position and can be clamped thereto by clamps 20 constantly reciprocating on shafts 21, 22, 23, the clamping means and the sliding means being operated by a common positive geared driving means. The door slides on rollers 6 on a rail 5, the drive being via shaft 17, pinion 16, rack 10 and horizontal rod 9, from an electric motor. The shaft 17 also reciprocates the clamps via mitre pinions 24, shafts 21, 22 and 23 and eccentric bosses 36, the reciprocation being arranged so that a clamp can only coincide with a plate 25 on the door when the closed position is reached, the clamps on the side of the frame part which the door must slide are ganged together by a rod 26 which is engaged by cam plates 27 on the trailing edge of the door to swing the clamps into the plane of the door when it reaches its closed position. The driving shaft 17 is provided with a spur 55 which engages a stop 52 on the door when the door is closed. A micro-switch mounted on the door is operated to cut the motor if opening is started when the chamber is still under vacuum The leading edge of the door has a safety, switch to cut the motor if the door is obstructed. The mechanism can be operated manually by a handle in case of an electrical failure. The autoclave is mounted in a wall behind a sliding safety screen. An autoclave chamber may have a door at each end.