baber/WOPTO huggingface dataset:
Patent GB-382898-A (GB)
Title: Improved process and apparatus for annealing metallic materials
IPC: C21D1/70
Filed: 1932-05-19
Abstract: 382,898. Annealing. JUNKER, O., Lammersdorf, Monschau, Germany. May 19, 1932, No. 14223. [Class 72.] In the annealing of strip material or material carried by conveyers in continuous annealing furnaces a powdery or dust-like substance such as heat-absorbing earths, graphite, charcoal, or soot, is deposited in a thin layer on the material at the entrance to the furnace and removed from the material at its exit from the furnace by wiping, brushing, blowing, washing or suction. The powdery substance is deposited by a shaking trough D in the whole surface of the strip A before it passes through a furnace B of the kind described in Specification 370,903, [Group XI]. The substance is removed from the strip after it leaves the furnace by the fan F through the pipe E and is conveyed to a bin G where the air is separated from it and thence by a worm H to the trough D. The bin G and the conduits are covered with heatinsulating material J. The powdery substance may be mixed with water &c. and applied to both sides of the strip by brushes and removed after the strip has passed through the furnace by brushes or by passing it through packing. If the edges of the strip are covered with oil or oxide, only the remaining part of the strip is covered with the powder.
Patent GB-668518-A (GB)
Title: Improvements relating to water heaters
IPC: F24H1/20
Filed: 1950-06-08
Abstract: 668,518. Hot-water boilers. HANTON, D. S. June 8, 1950, No. 14276/50. Class 64(i) A gas-heated water-heater having a water jacket 18 and a gas burner 47 at the lower end of the flue 15 formed by the inner casing of the jacket is provided with a heat-exchanger 14 comprising heat-conductive strips 30 assembled to form a cylindrical tube with fins 32 extending radially inwards, the strips being held together by annular members, e.g. 38, 39 pressed over the ends 33, 37 of the strips which extend beyond the ends of the fins 32. The strips are angular, Fig. 5, or channel shaped, Fig. 6 (not shown), and in one form are mounted within and in contact with a cylinder 29, Fig. 2, the ends 38, 39 of which are bent over to engage the ends 33, 37 of the strips. In a modification, the cylinder 29 is dispensed with and the strips are arranged in contact with one another between two channel-shaped rings which embrace the strip ends 33, 37. After assembly the heat exchanger is immersed in a bath of molten tin, solder, or plating liquid. The heat-exchanger 14 form the upper part of a flue the frusto-conical lower part 20 of which is double-walled to reduce condensation of hot gases, the two parts being spaced by a rib 23. Circular baffle plates 41, 45 threaded on a rod 42 are located against the ends of the fins 32. A sleeve 49 surrounds the flue and has at the lower end notches 50 to form inlets for cold water circulating upwardly between the sleeve and the flue. The water jacket 18, surrounded by insulating material 19, is supported in a cylindrical casing 1 with removable end pieces 2, 3, upon a ring 6 secured to brackets 4 at the bottom of the casing.
Patent GB-549754-A (GB)
Title: Improvements in and relating to electric lighting fixtures
IPC: F21V17/16
Filed: 1941-11-06
Abstract: 549,754. Electric light fixtures. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 6, 1941, No. 14303. Convention date, Nov, 9, 1940. [Class 75 (iv)] An electric light ceiling fixture comprises a reflector 1 with sloping margins 4 and supporting tubular lights 2 together with a louvre structure comprising louvres 5, 10, 11 placed edgewise vertically and crossing each other at right angles so as to form a number of cells. The louvre structure is supported detachably by springs 14 and the ends of the louvres are curved and slotted to support outer frame-like members 16, 17. The members 16, 17 are translucent while the louvres 5, 10, 11 may be of light coloured, opaque metal,or may also be translucent. Specification 526,713, [Group XXXVI], is referred to.
Patent GB-475793-A (GB)
Title: Stop-and-start mechanism for use in connection with gramophones or the like
IPC: G11B19/28
Filed: 1936-05-20
Abstract: 475,793. Gramophones &c. MADSEN, B., and SCHWEITZER, H. E. I. May 20, 1936, No. 14314. [Class 40 (ii)] In an automatic start-and-stop mechanism for gramophones and the like, in which manual movement of the pick-up arm or tone-arm towards the starting position effects the closure of the switch, the switch is normally held open against the action of a spring 6 by the engagement of a pawl 5 with an arm 4 on the shaft 12 of the switch, the pawl being tripped, so as to allow the switch to close instantaneously, by means of an arm 7 indirectly connected with the pick-up arm 21, when the latter is swung about its pivot 23 to place the needle on the record. A disc 2a fixed on the turntable spindle 1 has i a catch 2 frictionally pivoted thereon at 3. When the machine is working, the catch lies in the position shown at I, the arm 2b as it rotates passing clear of the switch-arm 4, which then occupies the position shown at 41. An arm 30 is frictionally mounted on a disc 27, which also carries the arm 7, and which is linked to the pick-up arm. During the traversal of the record by the pick-up, the end 33 of the arm 30 slowly approaches the disc 2a, but is repeatedly pushed back by the member -2 until the needle enters a run-off groove of quick pitch. Thereupon, the end 33 engages a hook 2c on the catch 2, and causes the catch to move so that its arm 2b projects as shown at II. This arm then strikes the switch-arm 4, throwing it over to the circuit-breaking position, and re-stressing the spring 6, the arm 4 being then again held by the pawl 5. The end of the arm 7 is flexible and inclined, so that it passes the edge 5<1> of the pawl 5 when the pick-up arm is moved back to the inoperative position, beyond the turntable, the arm 30 being also restored by the same movement to the normal position shown. When the gramophone is again started, a cam 36 resets the catch 2 into the position in which its arm 2b is inoperative. A toggle-switch of known design, operated by the shaft 12, is described.
Patent GB-277082-A (GB)
Title: Improvements in base exchange silicates and process of making same
IPC: C01B33/46
Filed: 1926-06-07
Abstract: 277,082. Engel, P. N. June 7, 1926. Double silicates.-Base-exchanging silicates are produced by reacting an alkali-metal silicate, a non-alkaline solution of an amphoteric metal salt, and an acid, the acid being in such proportion that a product is produced containing 1 molecule of alkali metal oxide, one molecule of amphoteric metal oxide, and 10 or more molecules of silica, the reaction being effected so as to form a gel embracing the entire volume of the solution. The examples describe the production of gels from sodium silicate, aluminium sulphate, and sulphuric acid, but aluminium acetate or a salt of another amphoteric metal may be used, and potassium silicate may replace sodium silicate. The reaction mixture may be somewhat alkaline or neutral, but should not contain excess of acid. The gel is dried below 100‹ C., preferably at about 80‹ C., and subsequently washed to remove soluble salts and break up the material. Small pieces may be formed by heating the mass to 100‹C and then treating with cold water. Larger pieces may be obtained by treating the dried product with steam.
Patent GB-485852-A (GB)
Title: Improvements relating to settings for retorts for the distillation of coal and other solid carbonaceous substances and like settings
IPC: C10B3/00
Filed: 1936-11-21
Abstract: 485,852. Retort furnaces. JONES, F. W. SALISBURY-, and NISBET, R. Nov. 21, 1936, No. 14378. [Class 51 (ii)] In a setting for vertical retorts heating-gases are caused to flow in proximity to a retort or retort chamber from heating or combustion passages or flues extending longitudinally in relation to the retort and supplied at spaced positions with heating-gases, the direction of flow of the gases in the combustion flues or passages differing from that of the gases when in contact with the retort or retort chamber. As shown, walls il built of tongued and grooved panel bricks separate the retort chamber h from the combustion spaces i, which are fired by horizontally-delivering burners k. The walls i are tied to the main walls of the setting by staggered bricks j. _ The combustion products pass downwards through the spaces i and then upwards through the retort chamber h in contact with the retort. A portion of the waste gases may be withdrawn for recirculation by a fan either before they have left the setting, or after the part of their heat has been utilized for preheating the charge in the feed hopper. The air for combustion is heated in vertical flues in the setting and is supplied through damper-controlled ports l<2>. Specification 481,584 is referred to.
Patent GB-150445-A (GB)
Title: Improved lifting truck or trolley
IPC: B62B3/06
Filed: 1919-06-06
Abstract: 150,445. Kimber, W. E. June 6, 1919. Hand-trucks.--In hand-trucks in which the load-carrying platform is connected by swing links to an underframe, so that it may be raised by being drawn forward by a chain winding on a drum actuated by the handle, the platform is adapted to be raised step-by-step, and a brake for checking the descent of the platform is applied by the means for disengaging the locking pawl. The upper frame or platform 1 is connected by links 3 to the wheel axles 4, 5 mounted in the under frame 2. Single front and rear wheels 4<1>, 5<1>, and a pair of central wheels 29, are shown. A shaft 9, mounted in upward extensions 8 of the frame members 2, carries at each end a drum 10 to which is attached a cable or chain 11, connected to the platform 1. The drums 10 can be turned to raise the platform by oscillating the handle bars 14 on the shaft 9 whereby ratchet wheels 12 on the drums 10 are turned by pawls 13 pivoted on the handle bars. The parts are locked at each step in the raising movement by pawls 15, pivoted at 18 to the underframe, and engaging the ratchet wheels 12. To lower the platform 1, the pawls 13 and 15 are disengaged, the descent being assisted by a spring 26 and controlled by brakes 24. The pawls 13 may be disengaged by hand or, as shown, automatically. For this purpose these pawls are secured to a shaft 31 mounted on the handle bars 14 and provided with a piece 32 which, when the handle bars reach the initial position shown, is engaged by a plate 35 on the cross-member 33 connecting the underframe members 8, whereby the pawls 13 are disengaged from the ratchets 12. The brakes 24 each comprises a band surrounding a drum on the drum 10 and having one end fixed and the other attached to a projection 22 on a foot lever 17 pivoted to the underframe at 18. The foot lever 17 also disengages the pawls 15 from the ratchets 12. For this purpose each pawl 15, pivoted at 18, has an arm 25, through a slot 20 in which passes a rod 19 secured to the side arms of the foot lever 17. The arm 25 is secured to the lever 17 by nuts on the rod 19. The slot 20 enables the pawl 15 to be adjusted with respect to the lever. The handle-bars 14 are locked in the vertical position by spring catches 34 which engage the member 33 and can be released by handle-rods 36.
Patent GB-1209802-A (GB)
Title: Fuel oil tank incorporating an oil feed and return system
Inventor: NANNI MARTIN
IPC: B65D88/54
Filed: 1968-03-26
Abstract: 1,209,802. Emptying tanks. M. NANNI. 26 March, 1968 [28 March, 1967], No. 14407/68. Heading B8T. [Also in Division F1] An oil tank 10 has a line 12 for supplying oil to a burner, and a line 14 for returning heated excess oil from the burner. The lines 12, 14 are connected via flexible conduits 19, 33 with supply and return pipes 18, 28 respectively. A float 26 maintains inlet opening 24 near the oil surface and therefore away from contaminants within the tank. The discharge opening 30 of the return pipe is arranged adjacent the opening 24 so that oil drawn into the supply pipe is preheated by the returned excess oil. A bypass pipe 36 may be provided for direct flow of the returned heated excess oil into the supply pipe. A U-shaped member 20 pivoted at its base at 21 and slidably extending through collars 22, prevents the pipes 18, 28 from moving laterally into contact with the sidewalls of the tank.
Patent GB-585368-A (GB)
Title: Improved yarns, films, tubing and like articles of acrylonitrile polymer
IPC: D06M13/148
Filed: 1944-07-28
Abstract: <PICT:0585368/IV/1> <PICT:0585368/IV/2> <PICT:0585368/IV/3> <PICT:0585368/IV/4> <PICT:0585368/IV/5> Filaments, films, tubes, and like articles, made of an acrylonitrile polymer are heated to a temperature of at least 100 DEG  C. and are stretched while at that temperature to at least twice the original length, so as to improve the tensile strength without reducing the property of elongation. The acrylonitrile polymer may be a simple polymer or it may be a copolymer of acrylonitrile with a minor proportion, e.g. less than 20 per cent of another polymerizable substance based on the weight of the copolymer.  As shown in Fig. 1, acrylonitrile polymer yarn is led from a package 2 by a feed roller 6.  Tension is applied by means of a tension guide 5.  The yarn on leaving the roll 6 passes without slippage round a second positively driven roll 8, the peripheral speeds of the rolls being adjusted so that the yarn passing between them is stretched to the desired extent.  The stretched yarn is collected on bobbin 10.  A heating device 11 is mounted in the path of travel of the yarn between rolls 6 and 8.  A stationary snubber 12 localizes the point at which the yarn is stretched.  As shown in Fig. 2, the heating device comprises a stationary hollow pin 20 with a heating element positioned therein.  The pin may be made of ceramic material.  It is placed in the path of travel of the yarn. Alternatively, the heating device may consist of a bath containing a heated liquid through which the yarn is made to pass, e.g. glycerol or mineral oil.  As shown in Fig. 4, the heating device comprises a conical, freely rotatable roll 40 mounted on a stationary hollow member 42 provided with a heating element 43. As shown in Fig. 5, the heating device comprises a tubular member 50 with internal heating coils 51.  A stationary snubber 52 localizes the point of stretch. As shown in Fig. 6, the heating device comprises a block 60 with a slot 61 through which the yarn passes.  The block is heated by a heating coil 62.  In examples, yarns of acrylonitrile polymer and of an interpolymer of acrylonitrile and diethyl fumarate are obtained by dry or wet spinning methods and are subsequently heated and stretched to 4, 6, 8, or 10 times the original length.  The stretched yarns shrink only to a very slight extent when subsequently heated in a relaxed state.  The acrylonitrile polymer may have a molecular weight of 25,000 to 750,000 or higher.  The polymer may be a copolymer of acrylonitrile with vinyl acetate, vinyl chloride, an acrylic or methacrylic ester, styrene, or isobutylene, provided that it contains a major proportion of acrylonitrile.  Specifications 404,504, 419,826, 497,689, 505,450, 579,492, [Group II], and 585,367 are referred to.
Patent GB-239615-A (GB)
Title: Improvements in and relating to the automatic control of dynamo electric machines
IPC: H02J3/42
Filed: 1924-06-14
Abstract: 239,615. British Thomson-Houston Co., Ltd., and Whitaker, F. P. June 14, 1924. Synchronizing dynamo-electric machines.-The polarity of a motor-started self-synchronizing rotary converter is automatically determined as the machine is run up to speed by means of a separately-excited field winding, and the final excitation of the machine is so adjusted as to enable it to pull into synchronism and give the normal voltage at the continuous-current terminals. In the form shown, the converter 6, which is started from the supply 4 by a motor 11, has an auxiliary winding 5 which, during the starting period, is energized by a generator 7 on the converter shaft. Closure of the control switch 1 energizes the coils 2, 3 of the contactors 10, 29 by which the motor 11 which is in series with the armature of the converter 6, and the auxiliary field coil 5 are respectively connected to the main and exciting supplies 4, 7. The volts across the motor field 9 at first are sufficient to raise the synchronous-speed indicating relay 13 and energize the coil 15 of the auxiliary contactor 17, thereby completing an independent retaining circuit through the coil 15. At the same time, contacts 22, 23 are bridged in preparation for energization of the coil 24 of the main running contactor 16. When the generator 7 has reached about 80 per cent of normal voltage, the contactor 25 closes and cuts out. sufficient of the rheostat 32 in the main exciting circuit 33<1> to give a field current which pulls the converter into synchronism. The volts across the motor coil 9 thereupon fall, the indicating relay drops, and energizes the coil 35 of a contactor 37 through contacts 33, 34, and the main running contactor 24, 16 connects the converter directly to the supply 4, the starting motor being simultaneously short-circuited. Closure of the ma.in contactor 16 opens contacts at 39, 40 to deenergize the coils 2, 3 of the motor and auxiliary excitation contactors and closes contacts at 41. 42. These contacts control the coil 43 of a field contactor 44 which cuts out a further section of the resistance 32, such as to give the required continuous converter voltage and opens the circuit of the contactor coil 25 so as to remove the short-circuit across the synchronizing tap on the resistance.
Patent GB-710353-A (GB)
Title: Improvements in or relating to combustion equipment for gas-turbine engines
Inventor: ANLEY DONALD MAYNARD
IPC: F23R3/60
Filed: 1951-06-18
Abstract: 710,353. Generating combustion products under pressure. ROLLS-ROYCE, Ltd. June 10, 1952 [June 18, 1951], No. 14455/51. Class 51 (1) Relates to combustion equipment for gas turbine engines comprising a flame tube 11 disposed in an outer casing and in which a duct part 13 is arranged to divide the air entering the flame tube at its inlet end from that flowing into the air jacket around the flame tube, the duct part being supported from the outer casing by one or more struts and affording at its outlet a support 28 for the inlet end of the flame tube. According to the invention a ring of swirl vanes 19 is secured centrally of a substantially frustoconical flare member 15, 16 at the inlet end of the flame tube, the swirl vanes and flare member forming a unit separate from the adjacent parts of the combustion equipment. The unit also includes a locating member, such as the tube 21 secured within the ring of swirl vanes, to engage the fuel burner 12 so as to locate the unit concentrically with the burner. Means are also provided to locate the flare member axially but with radial freedom at its periphery relative to the adjacent structure. Such means may comprise a ring 22 secured to the outer wall 15 of the flare member the ring having a flange 23 formed with a scalloped or castellated edge which is received in a groove 25 in the duct member 13, the wall 24 of the groove being similarly scalloped or castellated so that the flange 23 on the ring 22 may be entered and then rotated thereby axially locating the flare member. The ring 22 and flare member are prevented from rotation by means of the bolt 26 passing from the duct part 13 into a ferrule 27 in the ring 22. The flange 23 does not contact the bottom of the groove 25 so that the flare member is supported solely by the burner nozzle 12. The flare member comprises inner and outer conical walls 16, 15 which are spaced apart by means of indentations 17 to provide an annular passage 18 between the walls for flow of cooling air. The tube 21 engages a spherical seating formed on an air shroud ring 20 mounted on the fuel burner.
Patent GB-1504531-A (GB)
Title: Apparatus for determining the flowrate of fluid in a borehole
IPC: G01P5/06
Filed: 1975-04-09
Abstract: 1504531 Rotary fluid-flowmeters SCHLUMBERGER Ltd 9 April 1975 [9 April 1974] 14508/75 Heading FIT In a borehole meter similar to that described in Specification 1,304,702 the turbine rotor, or "screw", 44 comprises coaxial sleeves 45, 50 supported by ball bearings 46, 47 on a shaft 43, an oil-filled space 95 being in communication with the exterior by way of labyrinthine passages 101, 102, which prevent particles of solid matter in the working fluid entering the said space. The blades 57 of the screw are pivotally attached to the sleeve 45 by pins 56 and have pins 60 engaging with slots 69 in the sleeve 50, which can slide upwardly over the sleeve 45 against the resistance of a spring 51  until it meets a seal 107 on a fixed support 41 for the shaft 43. Leaf-springs 66 are connected by pivoted arms 72 to a ring 73 abutting an external tubular element, which is fixed to a hollow cylindrical sliding block 75 having a head engaging with a compression spring 80. The ring is slidable vertically on a sleeve 87 held against the block 75 by a spring 91 and having a flange 92 beneath an overhanging annular flange and seal 93, 94 on the sleeve 50. Thus when any or all of the leaf-springs deflect(s) inwardly owing to an obstruction in the borehole the ring and block are pushed upwardly by the arm(s) 72, thus raising the spring 91 and sleeve 87. The flange 92 therefore elevates the sleeve 50 (until it abuts the support 41) and so turns the blades upwardly, upward displacement of the sleeve 45 being prevented by the ball bearings 46, 47. The space 95 can be charged with oil through a channel 103 furnished with a non-return valve 104. To enable its rotation to be detected by a coil 113 the screw carries magnets 112 on the sleeve 45.
Patent GB-688746-A (GB)
Title: Improvements in and relating to connections for tubes
IPC: F16L19/00
Filed: 1951-06-19
Abstract: 688,746. Pipe couplings. BRITISH THOMSON-HOUSTON CO., Ltd. June 19, 1951 [June 22, 1950], No. 14521/51. Class 99 (i). A readily disconnectible spigot-and-socket coupling for vacuum cleaner tubes comprises a toothed or serrated contractible ring, preferably in the form of a coiled spring 13 which is adapted to engage serrations in a groove 11 in the spigot and serrations on the end face 8 of the socket, when contracted by the conical face 17 of a sleeve 14 screwing on to the socket. The spigot abuts a shoulder 10 in the socket. Expansion of the ring to free it from the serrations but insufficiently to leave the groove 11 allows the coupling to function as a swivel joint.
Patent GB-652181-A (GB)
Title: Improvements in or relating to sealing arrangements for rotating mechanism
Inventor: SWAIN FRANK EDWARD
IPC: F04C15/00
Filed: 1948-05-29
Abstract: 652,181. Stuffing-box substitutes. MINISTER OF SUPPLY, and NICHOLSON, S. G. May 29, 1948, No. 14569. [Class 122(v)] A seal for the rotor 16 of a rotary pump comprises cantilever plates 12, 13 secured to the pump casing and having radial faces lying adjacent the radial faces of the rotor 16. The plates 12, 13 are deflected and positively held closely adjacent the rotor, having an infinitesimal gap therebetween by means of bearings 18, 19 axially adjust. able by means of nuts 23, 24 screwed on to the shaft 17. Lubricating grooves are formed in the adjacent radial faces. In a modification the plates 12, 13 are drawn together by means of discs bolted to the rotor and having radial faces bearing on the outer radial faces of the plates 12, 13.
Patent GB-105510-A (GB)
Title: Apparatus for Facilitating Breathing in a Noxious Atmosphere.
Inventor: DAVIS ROBERT HENRY
IPC: A62B7/12
Filed: 1916-10-13
Abstract: 105,510. Davis, R. H. Oct. 13, 1916. Respirators. - Breathing-apparatus, consisting of an inlet valve c, an outlet valve d, a mouthpiece e or a mask, and a supply pipe a for drawing fresh air from outside the noxious atmosphere in which the wearer is situated, is provided with an elastic or flexible chamber h in the pipe a. The object is to relieve the lungs of some effort ordinarily required to suck the air through the pipe. The outlet valve may discharge into a tube provided with a second outlet valve, in order to prevent accidental intake of noxious gas or inhalation.