baber/WOPTO huggingface dataset:
Patent GB-1209062-A (GB)
Title: Improvements in or relating to gate vavles
IPC: F16K3/02
Filed: 1967-10-31
Abstract: 1,209,062. Making valves. KOPPERS CO. Inc. 31 Oct., 1967 [14 Nov., 1966], No. 49518/67. Heading B3A. [Also in Division F2] Cooled gate valve, particularly for blast furnaces, comprises a housing 13, and hollow members through which cooling fluid is circulated, these members consisting of a valve disc 17, separate seat members 19, and a U-shaped shield 137 surrounding the gate. The cooled parts are constructed as follows:- Valve disc.-Consists of two half-discs 25, 27. Each half-disc is made from two conventional flanged-only steel heads 29, 31. These are fixed together in spaced relation to form a cavity 83, by studs (45) welded to both heads. A series of these studs is slotted to receive a spiral baffle (55). The half-discs are first assembled together by interengaging screw-threaded sleeves (63, 65) welded to the respective half-discs. Next the abutting inner heads 31 are welded together through a gap between the outer heads 29, and the gap is closed by a ring 75 welded in place. Cooling water enters the spaces between the heads 29, 31 through a pipe 69 and flows thence into the interior of the disc through openings 59 and out through a concentric pipe 78. Drain holes 81 and a central tube 79 enable the disc to be emptied of water. Valve seat and heat shield panel.-Comprises a hollow fabricated annular seat 87 with a concentric baffle 127. A hollow partitioned shield 85 is welded to the seat through partitions 95e, 103 with junction plate 129, 115a, and 95a. The panel is constructed to provide a labyrinth coolant flow path as shown, with an inlet 109 and outlet 110. To allow for thermal expansion, baffles are formed of four pairs of slightly spaced walls 91b, 91c. Each wall of a pair is connected at one end to a separate top or bottom plate such as 99c, 117c, as shown, and the two walls of each pair are connected at their free ends by a slit tube (101) inserted over and welded to the walls, to form baffles. An air vent tube 191 is provided for the top of the seat. When assembled in the valve, the seat is secured against the casing by eccentric cams (190), Fig. 14 (not shown). U-shaped heat shield.-Consists of a hollow member surrounding the interior of the housing 13 in the region of the disc. This member has inlet and outlet coolant connections 163 at the top ends thereof and baffles (159, 161), Figs. 8 and 9 (not shown) are provided at these ends.
Patent GB-1064957-A (GB)
Title: Improved temperature compensated transducer
IPC: G01L1/22
Filed: 1963-12-16
Abstract: 1,064,957. Measuring electrically; force measuring. SHIH YING LEE and YAO TZU LI. Dec.16, 1963 [Dec.26, 1962], No.49673/63. Headings G1N and G1W. Strain gauges on an arm 96, Fig. 18, measuring the force in a rod 102 are compensated for temperature dependent variations in their output signals and sensitivities by a bimetallic U-shaped strip 50 carrying two struts 42, 44, attached to a common point 52 on the rod 102. The two ends of the U50, shift under temperature variations to change the separation of the ends of the struts, and consequently the stiffness of the strut frame varies so that resistance to movement of the rod 102 is varied and the sensitivity of the system is varied in a sense which compensates for the temperature dependent changes in the sensitivity of the strain gauges. A screw 160 adjusts the inclination of the strut frame to the rod Figs. 14, 15, 16 (not shown) so that a change with temperature in the opening of the U tends to move the point 52 upwards (Fig. 16) or downwards (Fig. 15) and thus for a given force in the rod 102 a change  in the output of the strain gauges is obtained which compensates for that change resulting from their own temperature coefficients of resistance and expansion. The effective length of the bimetallic arms is adjustable by a bolt 68 slidable along a slot 70, Fig. 9 (not shown) in the U or by a slug screwable along the inside of the U Fig. 19 (not shown), thus enabling the compensation characteristics to be matched to the strain gauges used. A spring bracket 80 also Fig. 12 (not shown) introduces a further change of characteristic when the U-arms have opened a certain amount. The rod 102 may be connected to a pressure sensitive diaphragm 130, Fig. 18, and the lever member 124 carries a spring 132 for zero adjustment of the strain gauge output, and also a mass 146 which compensates for any effects due to acceleration of the whole apparatus. Other arrangements include a composite member Fig. 20 (not shown), formed from two bowed struts, which member combines the functions of the bimetallic strip and stiffness frame, and a beam arrangement Fig.21 (not shown) in which sensitivity control is obtained by varying the effective fulcrum about which the beam 196 turns under the action of a spring 222. The fulcrum is the cross-over point of a bimetallic strip 216 attached at right angles to the beam and a resilient extension of the beam, 204, this point being caused to move by the bowing of the bimetallic strip 216.
Patent GB-1085706-A (GB)
Title: Roof support suitable for use in mines
Inventor: ARAM HERBERT
IPC: E21D15/48
Filed: 1964-12-09
Abstract: 1,085,706. Mine roof supports. DOWTY MINING EQUIPMENT Ltd. March 8, 1966 [Dec. 9, 1964 (2)], Nos. 50132/64 and 50133/64. Heading E1E. An extendable prop for a mine roof support is borne on a base having pin-receiving apertures forwardly and. rearwardly of the prop, the apertures forming connecting means wider than the prop. The bases may be joined by links and/or pins, pivotably or rigidly. Roof engaging means may be similar and may have means for supporting longitudinal bars between two or more roof engaging means.
Patent GB-1437103-A (GB)
Title: Dyestuffs preparations
IPC: C09B67/34
Filed: 1973-10-29
Abstract: 1437103 Stable dyestuff solutions IMPERIAL CHEMICAL INDUSTRIES Ltd 1 Oct 1974 [29 Oct 1973] 50228/73 Heading C4P A stable concentrated solution of a basic dyestuff having a pH within a predetermined range is prepared by dissolving a salt of the dyestuff in a mixture of water and an organic solvent which mixture has been previously buffered to the required pH range by addition of a water-soluble monocarboxylic acid and a water-soluble organic nitrogenous base. The dyestuff preferably has the Formula I where R, R<SP>1</SP> and R<SP>2</SP> are optionally substituted alkyl, aralkyl or aryl and R<SP>3</SP> is H, alkyl or aralkyl or R and R<SP>1</SP> together or R<SP>2</SP> and R<SP>3</SP> together complete a ring and the rings X and Y may have alkyl substituents. Preferably, the dyestuff is in the form of a tetrachlorozincate or zinc chloride double salt and the pH is preferably 4À2 to 4À8.
Patent GB-1284431-A (GB)
Title: Improvements in or relating to external alignment clamps for pipes
Inventor: BLISS LEONARD CAIUS
IPC: B23K37/053
Filed: 1969-10-13
Abstract: 1284431 Welding by fusion COUNTY RIVERWAY BOILERS Ltd 17 Nov 1970 [13 Oct 1969] 50232/69 Heading B3R [Also in Division E2] Abutting ends of pipes to be welded together are aligned by a clamp comprising hinged ring parts 1 and 2, a bridge piece 47 pivoted at 46 and engageable with its cross-member 48 over a bridge piece 42, when the latter is in its broken line position, and an hydraulic or pneumatic jack, pivotally mounted at 40 and operable to pivot bridge piece 42 to its solid line position, thus to draw the free ends of the ring parts together to clamp the pipes. The ring formed by parts 1 and 2 comprises two axially-spaced circumferentially-extending frames (only one shown) connected by humped bridging members (not shown) to facilitate welding along a path between the frames and beneath the bridging members. This welding path may be offset from the jack centre line. Bridge pieces 42 and 47 may be adjustable in length.
Patent GB-503864-A (GB)
IPC: B65H75/14
Abstract: 503,864. Reels. McLAREN, E. R., and AVON TIN PRINTERS, Ltd. Oct. 15, 1937, No. 28127. [Class 120 (iii)] A reel for wire &c. has the barrel provided, adjacent one or both ends thereof, with a series of spaced-apart projections against which the inner surface of the flange or flanges rests, one or both of the outer ends of the barrel being rolled or turned over tc form a bead against the outei face of the flange and secure the flanges and barrel together. As shown the projections c are semi. circular in form and are pressed out of the barrel a, cuts being made at the straight-portions of the semicircles and the parts above these straight portions being bulged out to engage the flanges b.
Patent GB-1407273-A (GB)
Title: Pressurized dispensing can attachment
IPC: B65D83/16
Filed: 1972-11-06
Abstract: 1407273 Pressurized dispensing containers GOLDWELL GmbH CHEMISCHE FABRIK H E DOTTER 6 Nov 1972 [6 Nov 1971] 51173/72 Heading F1R A discharge device for a pressurized dispensing container may be used for spray discharge or for filling a further dispensing container. A ring 2 is mountable on a container 1 and has pivoted thereon a lever 3 having a discharge nozzle and a tube 5 engageable with the container valve stem; in another embodiment the lever has a recess which receives a standard valve button which carries an adapter to engage the valve stem Fig. 4 (not shown). The lever 3 may be swung clear so that a small container may be inserted in the ring and filled from the valve. Guide strips 17 may be provided and also a concentric outer ring of the same diameter as the container 1. In a further embodiment Fig. 6 (not shown) removable means to prevent operation of the lever are provided.
Patent GB-1321064-A (GB)
Title: Ejectors for container moulding machines
IPC: B29C33/44
Filed: 1970-10-30
Abstract: 1321064 Article delivery device ILLINOIS TOOL WORKS Inc 28 July 1970 [28 July 1969] 51810/72 Divided out of 1321062 Heading B5A In the sheet forming device disclosed in Specification 1,321,062, in which a sheet is gripped at its upper edge by a series of clip devices 26 and fed to co-operating female moulds and mandrels 118 and 108 respectively carried on the curved surface of a moulding drum 42, the formed articles are ejected into a pneumatic container removing means 46 through which they are sucked to further working stations. The means 46 consists of an ejector tube 274, the lower end 306 of which is curved to follow a portion of the path of the moulds around the drum and is provided at its female mould facing side with an elongated article receiving aperture 308.
Patent GB-1384651-A (GB)
Title: Vehicles
IPC: B60R19/34
Filed: 1972-11-10
Abstract: 1384651 Vehicle bumpers NISSAN MOTOR CO Ltd 10 Nov 1972 [16 Nov 1971] 52078/72 Heading B7J In a wheeled vehicle having an end cross member 1 and a side frame member 2, a bumper 5 is secured to a retractable strut 4, such as an hydraulic cylinder 4a and piston-rod 4b, which extends through an aperture 3 in the cross member 1 and is mounted on the side member 2 by mounting means 8 including a torsion bar 9 embedded in the side member 2 to torsionally resist impact force transmitted by the strut 4. In an impact at speeds above a predetermined speed, energy is absorbed by telescoping of piston-rod 4b and cylinder 4a, and twisting and then fracture of bar 9, followed by deformation of side member 2 to absorb remaining energy. At speeds below the predetermined speed, the impact energy is absorbed by telescoping of the rod 4b and cylinder 4a only. As shown, the torsion bar 9 comprises two end portions 9b and 9d and a central portion 9a, all of square crossseetion, interconnected by rod portions 9c and 9e. The central portion 9a is embedded in a block (10), Fig. 3 (not shown), which is built into the member 2, while two arms 11 and 12 are secured to the end portions 9b and 9d and fastened to the strut 4 by a bolt 13. Alternatively, Fig. 7 (not shown), the bar 9 comprises only a lower end portion 9d embedded in member 2 and connected by a rod portion 9c to an upper end portion 9b, which is secured to a single arm 11.
Patent GB-1302303-A (GB)
IPC: H02H3/04
Filed: 1970-11-03
Abstract: 1302303 Protective arrangements COMPAGNIE DES COMPTEURS 3 Nov 1970 [3 Nov 1969] 52200/70 Heading H2K Apparatus for responding to an opencircuit condition of one or more of a plurality of fuses Fa ... Fc connected in respective phases a ... c of an A.C. supply, comprises signal producing means for producing continuous logic signals which are functions of a voltage and/or a current in each phase and logic means responsive to at least one of the logic signals for each phase and the complement of at least one other of the logic signals for producing an output signal indicative of the open circuit condition. In the arrangement shown, the signal producing means are transformers TRA ... TRC, full-wave rectifiers P A  ... P C  and converters C A  ... C C  which produce rectangular waveforms of limited amplitude, the waveforms being filtered so as to obtain continuous logic quantities. The logic means comprise inverters R A  ... R B  connected to an OR gate OU 1 , a second OR gate OV 2  being connected directly to the converters C A  ... C C . The OR-gate OU 2  provides a signal to an AND gate ET when any of the transformers TR is energized and the OR-gate OU 1  provides a signal to the AND gate ET when one or more of the transformers TR ceases to be energized, the AND gate then providing a signal to a relay RE which opens its contacts re 1  to deenergize the coil D of a main switch. In Fig. 3 (not shown) detection of an open circuit fuse is effected by comparing logic signals derived from two currents of different phases, the outputs of three AND gates being connected to a single OR-gate. In either of these arrangements the signals may be derived from voltages instead of currents. In further arrangements, Figs. 4 and 5 (not shown), logic signals derived from currents are compared with those derived from the voltages.
Patent GB-1126733-A (GB)
Title: Locating structure
Inventor: FORREST JOHN ALAN
IPC: G21C3/352
Filed: 1964-12-23
Abstract: 1,126,733. Heat exchanger tube supports. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 10 Dec., 1965 [23 Dec., 1964], No. 52258/64. Heading F4S. [Also in Division G6] A heat exchanger, for example a cluster-type nuclear fuel element formed of an assembly of elongate fuel pins arranged parallel to one another in a regular lattice array forming straight rows of fuel pins, and gaps between the rows, in at least two directions, has a locating structure constituted by strips stacked crosswise and on edge to form a stack over the whole heat exchange length of the exchanger, the strips of each layer in the stack being only in gaps which run in the same direction and being in less than half the number of such gaps, while the stack as a whole provides at least one strip in each direction. By distributing the locating structure lengthwise along the exchanger, instead of the severe flow restrictions imposed by grids placed at intervals, it is possible to arrange that the area available for flow is uniform at all levels of the heat exchange length. As shown in Fig. 1, the structure is built up from superposed units 16, 17, 18, 19, 20 and 21 displaced angularly to one another. Each unit comprises two layers of straight parallel strips 12, 13 spaced apart uniformly by four fuel pin widths. The stack of superposed units provides cells for the individual fuel pins (Fig. 3, not shown). In each unit the strips 12, 13 are slotted at the points of intersection to less than half their width and interengage in the manner of an egg box. In a particular fuel element described by way of example (Fig. 5, not shown), each fuel pin has an unfuelled and reduced diameter length amounting to nearly half the overall pin length at the lower, upstream end of the element to act as a reservoir for fission product gases. Beyond this unfuelled length there is a lower axial breeder fuel section, an enriched fuel section and an upper axial breeder fuel section, these three sections together constituting the heat exchange length. The units employed in a portion of length corresponding to the lower axial breeder section may be deeper than the remainder by virtue of greater strip width and/or less overlap of the layer pairs. This lower standard of location is permissible because of the lower operating temperature of this portion. In the unfuelled length, an even further lowered standard of location is appropriate and this may be achieved by further increasing the depth of the layer pairs, using strip of a thickness rather less than is necessary to fill the gaps between the rows of fuel pins, and spacing the parallel strips in each layer by eight fuel pins widths instead of four.
Patent GB-1055420-A (GB)
Title: Improvements made in nuclear reactors
IPC: G21C7/00
Filed: 1964-12-29
Abstract: 1,055,420. Reactors. SOCIETE BELGE POUR L'INDUSTRIE NUCLEAIRE " BELGONUCLEAIRE ". Dec. 29, 1964 [Feb. 11, 1964], No. 52611/64. Heading G6C. In a fast reactor having a cylindrical core, a cylinder of reflecting material is placed along the core central axis. The control rods are movable longitudinally within the central reflector cylinder. The fuel assemblies are arranged concentrically round the reflector. The cooling medium may be liquid or gaseous and in an alternative form the reflector cylinder is separated from the core by a sleeve which permits the use of a liquid control medium.
Patent GB-526247-A (GB)
Abstract: 526,247. Reinforced concrete. WALKER, J. H. March 8, 1939, No. 7535. [Class 20 (iv)] Spacer members for one or more layers of reinforcing rods are formed of sheet metal bent to angular, curved, or cylindrical shape with slots &c. to position the rods. As shown in Fig. 1, the rods 6, 7 are spaced by ledges 8, 9 formed by tongues 2, 4 struck from the angle piece 1 and lapped around the rods. Fig. 2 shows a modification in which the rods 6, 7 are fitted in end-slots 10, 11 of the spacer 1 and secured by a twisted wire 12. Fig. 4 shows a similar arrangement in which the spacer is of tubular form with slotted limbs 16, 19 for the rods. Fig. 6 shows a spacer 25 of arched form with a slot 27 in .which the rod 26 is secured by a nail &c. 29.
Patent GB-1469939-A (GB)
Title: Trench excavator
IPC: E02F5/02
Filed: 1974-12-06
Abstract: 1469939 Trench excavators INTERMAN BEHEERBEGELEIDING BV 6 Dec 1974 [13 Dec 1973] 52794/74 Heading E1F A trench excavator having a digging element-armed endless cutter chain 39 circulating about a vertically swingable boom 29 rotatably supported on a driven shaft 41 extending from one side of the chassis 2 of the excavator and carrying a drive sprocket 37 for the chain is characterised by a two part, outwardly opening guard hood 49 for the upper end of the chain boom assembly. The hood has two parts 50, 51 of which one is mounted on the frame and the other is mounted on the boom so as to slide one in the other so that with the boom raised to a substantially horizontal position they are superimposed and with the boom swung downwards they slide apart so that at all positions of the boom the drive sprocket and the upper part of the boom are covered from above and from the sides thereof adjacent the chassis of the excavator. Preferably the hood has the form of a spherical segment, being formed by two spherical segment shaped parts 50, 51, which each extend through an angle of at least 90‹ about the driven shaft. The front part of the hood in the direction of travel of the excavator is preferably secured to the chassis 2. The guard hood can also extend laterally over a screw conveyer 53 mounted on. the drive shaft externally of the drive sprocket. The chassis, which can be advanced by causing a winch 15 on the chassis to haul in on an anchored cable 16, is mounted on two front and two rear wheels of which one of the rear wheels is displaced inwards relative to the corresponding front wheel so that the boom and hood can be located at one side of the chassis in a recess in the chassis.
Patent GB-1080560-A (GB)
Title: Semiconductor diode device
IPC: H01L21/00
Filed: 1964-12-31
Abstract: 1,080,560. Zener diodes. MOTOROLA Inc. Dec. 31, 1964 [Jan. 2, 1964], No. 53009/64. Heading H1K. A Zener diode, Fig. 3, consists of a wafer 23 of one conductivity type with a recrystallized region 30 and a surrounding diffused region 35 of the opposite type in one surface. The PN junction 36 between the diffused region and the wafer which has a breakdown voltage higher than that between the recrystallized region and the wafer is coated with a dielectric layer 28. Such diodes are made in multiple from a 0À007- 0À08 ohm cm. N-type silicon wafer by oxidizing its surface and photo-engraving annular apertures in the oxide. The wafer is then exposed to boron trioxide in an oxidising atmosphere to form annular P regions overlain with oxide. After gettering out metallic impurities, e.g. copper, by exposing the opposite surface to phosphorus pentoxide vapour and oxygen and then reoxidizing, circular apertures the peripheries of which overlie the diffused annuli are photo-engraved in the oxide. Aluminium is evaporated over the whole of the apertured surface and after being etched back to within the apertures is alloyed to the silicon. The opposite wafer face after removal of oxide is vapour coated with gold-silver alloy. Individual elements subdivided from the wafer may be mounted in glass tubes (Fig. 1, not shown).
Patent GB-1245844-A (GB)
Title: Apparatus for vapour elimination
IPC: D01D10/04
Filed: 1969-11-03
Abstract: 1,245,844. Removing vapour from separator rolls. MASCHINENFABRIK RIETER A.G. 3 Nov., 1969 [9 Nov., 1968], No. 53732/ 69. Heading D1F. Apparatus for the elimination of vapour by suction from a separator roll of a heated setting or relaxing device for threads I on a draw-twisting or draw-winding machine, comprises a separator roll 6, a heating device 5 with two heating surfaces placed between the thread paths to and from the separator roll, and a suction hood 8 provided between the separator roll 6 and the heating surfaces, the hood 8 partially surrounding a zone of the roll 6 out of the thread path around the roll, and being spaced from the roll to define a suction slot. The suction hood comprises side walls 9, 10 and an inclined bottom wall 14, the wall 14 inclining downwards to an exhaust 15. The side wall 9 forms a slot 12 with the outside surface 11 of the roll 6, and the side wall 10 is formed with a recess 13 adjacent the roll 6. A flexible pipe 16 leads from the exhaust 15 to a common exhaust duct 17. In operation a thread 1 passes round draw roll 3 and separator roll 4 to heater 5 and separator roll 6, vapour being formed by heating of the thread to which a finish has been applied. The vapour is carried along by the thread to the separator roll and is removed by the suction hood 8. The suction hood 8 ensures an air convection current around the separator roll 6 and thus a cooling of this roll.