baber/WOPTO huggingface dataset:
Patent GB-1148982-A (GB)
Title: Improvements in and relating to tubular heat exchangers
Inventor: LORAINE THOMAS JOHN
IPC: F28F9/02
Filed: 1966-07-05
Abstract: 1,148,982. Tubular heat exchangers. C. A. PARSONS & CO. Ltd. 29 June, 1967 [5 July, 1966], No. 30139/66. Heading F4S. A tubular heat exchanger, in particular for use as a boiler feed-water heater in a power plant, comprises a casing housing, one or more -banks of U-tubes 2, the inlet ends 2a and outlet ends 2b of which are connected to a common tube plate 3, and a header 4 divided by a wall 4a into corresponding inlet and outlet chambers 5, 6 for said tubes, said tube plate 3 being of a stepped construction whereby the fluid pressure in chambers 5 and 6 urges the stepped portion 3a into sealing relationship with the wall of the header. Seal welds e.g. 7 may be used to bond the tube plate 3 to the header 4 supplementing the fluid pressure. Alternatively the plate may be supported by bolting or by compression means such as springs in the chambers 5 and 6.
Patent GB-335074-A (GB)
Title: Improvements in printing
IPC: C09D11/14
Filed: 1929-10-04
Abstract: 335,074. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Oct. 4, 1929. Ink.-Lithographic printing-inks using as bases cellulose-ester or cellulose-ether lacquers, as described in Specification 318,567, have all the constituents of such a nature that they repel water. According to examples, inks are constituted as follows : (1) nitrocellulose, castor oil, diethyl phthalate, dimethyl phthalate, ethyl benzoate, dammar resin, and zinc white; (2) nitrocellulose, castor oil, ester gum, lampblack, dimethyl phthalate, and benzyl acetate; (3) acetyl cellulose, chrome yellow, triphenyl phosphate, ethylene glycol mono-salicylate, and triacetin.
Patent GB-520436-A (GB)
Title: Improvements in machines for raising root crops
IPC: A01D19/16
Filed: 1938-10-19
Abstract: 520,436. Potato diggers. BAMFORD, C. J., and BAMFORD, H. V. Oct. 19, 1938, No. 30258. [Class 6 (iii)] , In a machine for raising potatoes or other root crops the rotary member behind the share is provided with two or more sets of tines, the sets being arranged one within another about the vertical or somewhat inclined axis of rotation and the end portions of the tines being bent backwardly in relation to the direction of rotation, As shown arms 12 extend outwardly and upwardly from the hub 10 of the rotary member and a tine 15 of each set is fixed to each arm. The ends of the arms support by brackets 23 a ring 24 carrying backwardly projecting arms 25, which serve to knock off the haulms. The delivery side of the machine may be provided with a receiving reel as described in Specification 298,712, [Class 6 (iii)]
Patent GB-464388-A (GB)
Title: Improvements in and relating to mercury boilers
IPC: F22B3/02
Filed: 1936-11-06
Abstract: 464,388. Mercury-vapour generators. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 6, 1936, No. 30302. Convention date, Nov. 8, 1935. [Class 122 (iii)] A small amount of titanium or zirconium is added to the mercury in a mercury-vapour generator to prevent dissolution of the ferrous metal and to facilitate the wetting of the metal. The added metal forms an extremely thin coating on the ferrous metal of the boiler. The metal is added in the powdered form. A small amount of zinc or copper is also added as a film stabilizing substance. Dissolution is prevented by adding À02 per cent. by weight of titanium or zirconium. Wetting of the tube is considerably improved by adding in excess of À04 per cent. by weight. Further quantities act as oxidizing-agent. The oxide covering the commercial titanium or zirconium is broken down and the substance is wetted before entering the boiler. Powdered, unwetted substance may be added directly to the boiler. Prewetting is accelerated by stirring, or by oscillating in a rocking furnace for 50 or 100 hours. Fairly low viscosity to ensure prewetting is obtained by adding 18 parts by weight of mercury. to one of titanium or zirconium at 1000‹ F. The zinc or copper prevents oxidization. One-sixth part of zinc is added. The drum 10 is provided with tubes 15 of ferrous metal. The tubes have inner and outer walls defining hermetically closed spaces. The inhibiting- and wetting-substances are supplied by a funnel 43 with a filter 44 and a pipe 40 with two valves 41, 42. A tank 45 containing mercury freed from water by a steam coil 49 is connected to the funnel by a pipe 47 and a valve 48. The valves 47, 42 are opened and the mercury flushes the powdered metal into the tube 40. Nitrogen or other inert gas may be fed to the system during shut-down periods. Specifications 392,783 and 425,344 are referred to.
Patent GB-698896-A (GB)
Title: Improvements relating to concentric keep-alive electrode arrangements in electric discharge devices such as t.r. switches
Inventor: SCOTT WILLIAM JOSEPH
IPC: H01J17/04
Filed: 1950-12-12
Abstract: 698,896. Cold-cathode tubes. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 14, 1951 [Dec. 12, 1950], No. 30339/50. Class 39(i) In a T.R. switch comprising two coaxial main electrodes forming part of a resonant circuit and at least one of which is hollow and contains an auxiliary " keep-alive " electrode, the tip of the hollow electrode is of skeleton construction so that the operative end of the auxiliary electrode is visible and its separation from the main electrode can be readily determined, but at the same time the main gap is shielded from the auxiliary electrode. Figs. 1 and 2 show a known construction of T.R. switch, to which the invention is applicable, comprising a length of metal rectangular waveguide 1, electroplated internally with silver and/or copper, having end flanges 2 and 3 and hermetically sealed at each end by a metal plate provided with a slot 5 into which glass is sealed by fusion, the slot being tuned to preferably the mid frequency of the operating band. A single member having flanges which are brazed to the walls of the waveguide provides two partitions 7 forming an iris 6 which together with coaxially mounted main electrodes 11 and 12 constitutes a resonant circuit tuned to substantially the same frequency as the slots 5. The partitions 7 are separated from the side walls of the guide by spaces 8 to' facilitate chemical cleaning and/or electroplating of the envelope during manufacture. Electrode 11 is mounted on a flexible diaphragm 9 and is surrounded by a tube 10. Adjustment of the position of the electrode is possible by means of a screw 19 threaded into the tube 10, and a second screw (not shown) can replace the screw 19 to engage the thread in the electrode 11 for major retractions. Electrode 12 is fixed in the upper wall of the guide and is made hollow to receive an auxiliary electrode 14 which is sealed into the mounting tube 20 by a glass bead 21. The apparatus can be evacuated and filled with gas through an exhaust tube 22 which is sealed by a glass bead 23. Fig. 3 shows an electrode construction according to the invention wherein the hollow main electrode 12 is provided with a tip in the form of a wire loop 13 welded to the electrode. The auxiliary electrode 14 is covered, except at its operative end 15, by a glass coating 29 and the second main electrode 11 is solid. In an alternative embodiment both main electrodes are hollow and contain auxiliary electrodes, the wire loops forming the skeleton tips of the main electrodes being arranged at right angles to one another. Alternative forms of the skeleton tip comprise two wire loops, one wire loop and two short probes, a wire gauze, a plurality of straight or curved wires secured across two projections from the hollow electrode, and a bridge piece formed integrally with the electrode.
Patent GB-809158-A (GB)
Title: Improvements in tubular heat exchangers
Inventor: THOMPSON THOMAS
IPC: B21C37/26
Filed: 1955-10-24
Abstract: 809,158. Making helically finned tubes; welding. CLARKE, CHAPMAN & CO. Ltd. Oct. 24, 1956 [Oct. 24, 1955], No. 30361/55. Classes 83 (2) and 83 (4). A method of forming a metal tube with an external helical metal fin comprises continuously applying a strip of metal edgewise to a rotating tube, forming said strip at room temperature into a helical fin with its inner edge in contact with the tube, and arc-welding the helix by said inner edge to the surface of the tube. A steel tube 1 is held vertically and rotated by the chuck of a lathe, a slide 2 of which, displaced axially of the tube by a lead-screw 4, carries means for guiding steel strip 3 to be wound edgewise on the tube 1 and means mounted on a transverse slide 5 for arc welding the strip 3 to the tube 1. The leading end 21 of the strip 3 is secured to the tube by a clamp 22 and bolt 23 and is drawn thereby through straightening roll 16, past cutters 26 which chamfer its upper inner edge, thence between blocks 11, 15 to be guided round the tube 1 by a projection on the block 15 and by a tongue 28 on the block 11. Welding by fusion.-A welding head 30 is angularly adjustable about a part 31 on the slide 5 and is further adjustable, by means of an eccentric 37, about a bolt 38 and also relative to said eccentric. The welding wire passes from a supply reel carried by an arm 43 of the welding means, through the head 30 to a point X at the inner edge of the strip and surface of the tube. The tube may be horizontal.
Patent GB-632845-A (GB)
Title: Improvements in or relating to two stroke internal combustion engines
IPC: F02B75/02
Filed: 1945-11-13
Abstract: 632,845. Two-stroke engines. CHAVE, F. Nov. 13, 1945, No. 30393. [Class 7 (ii)] In a two stroke engine the charge is compressed between the underside of the piston 18 and a fixed member 12 and transferred to the combustion chamber through a passage 3, piston rings being located in the grooves shown in the piston and the member 12. Deflectors 15, 19 are provided. The member 12 is clamped between the cylinder and the crank case by a flange 11 having a slot 16 to accommodate the piston gudgeon pin 9 and its boss.
Patent GB-274703-A (GB)
Title: Improvements in or relating to machines for washing or otherwise treating fabrics with liquids
IPC: D06B3/26
Filed: 1926-12-01
Abstract: 274,703. Shaw, J. E., and Shaw, A. Dec. 1, 1926. Spraying travelling materials; dolly machines; hawking machines.-In apparatus for washing &c. fabrics which are passed in the rope form alternately through the washing &c. water and through squeezing rollers b, c with a draft board e having an aperture for each run of the fabric, there is provided or each run an annular spray pipe g delivering downwardly directed conical jets g<1>. A second ring giving upward jets may be provided. The liquid from the vessel a or water from the main m may be circulated by an injector i.
Patent GB-1013213-A (GB)
Title: Hard facing alloys
Inventor: CAPE ARTHUR TREGONING
IPC: C22C38/56
Filed: 1962-08-08
Abstract: Iron base alloys consist of the following ingredients: .C.1-4.5% .Cr.17-27% .Mo.4-10% .Co.5-25% .Ni.1-2% .Si.up to 4% the balance, apart from impurity amounts of Mn, P and S, being iron. Specification 817,697 is referred to.
Patent GB-692193-A (GB)
Title: Improvements in or relating to crates
IPC: B65D25/24
Filed: 1949-11-28
Abstract: 692,193. Tilting crates. UNITED GLASS BOTTLE MANUFACTURERS, Ltd., and JUDD. H. J. Oct. 18, 1950 [Nov. 28, 1949], No. 30430/49. Classes 18 and 21 The pivotally mounted cover 14 of a crate for carboys adapted to act as a support for the body 10 of the crate to facilitate tilting, is provided with three side walls the rear one 16 engaging the front corner posts 24 of the crate when the cover is in its closed position whereby rearward movement of the cover is prevented. Tubular rubber is secured to the corner posts and extends across the bottom of the crate to rigidly support the carboy in the crate. The cover is normally retained in the closed position of the crate by a catch 23. Hand-holes 25 are provided in the side walls of the cover to facilitate lifting of the crate.
Patent GB-711741-A (GB)
Title: Gas turbine
IPC: F01D5/18
Filed: 1951-12-31
Abstract: 711,741. Gas turbine plant. SIMMERING- GRAZ-PAUKER AKT.-GES. FUR MASCHINEN-, KESSELUND WAGGONBAU. Dec. 31, 1951 [May 28, 1951], No. 30433/51. Class 110(3) In a gas turbine of the multi-stage type having liquid-cooled rotor blades, each axial row of blades has associated therewith a common cooler which is independent of the coolers of the other axial rows of blades. The rotor blades 11 have cooling ducts 12, 13. which are connected to a pipe 10<SP>1</SP> and the coolant flows to and from a cooler 10 which comprises finned, radially-disposed pipes mounted at one end of the rotor by means of root portions 23. The coolers are cooled by air supplied from the compressor of the plant which enters at 8. is reversed and discharges at 9. In a second embodiment, each cooler comprises a duct disposed parallel to the rotor axis and is cooled by liquid, for example, water. Specification 623,841 is referred to.
Patent GB-785663-A (GB)
Title: Improvements in and relating to the measurement of loose material
IPC: G01G13/00
Filed: 1955-10-25
Abstract: 785,663. Delivering measured quantities of fluent solid materials. BARBERGREENE CO. Oct. 25, 1955 [Sept. 9, 1955], No. 30526/55. Class 106(5) Measured quantities of loose material, such as mineral fines for mix ture with aggregate and asphalt as described in Specification 786,923, are delivered by elevating the fines from a storage bin 69 to a storage shoot 12 above a variable-volume measuring chamber 10, discharging them under control of a gate 13 into the chamber and varying the volume of the chamber until, by weighing, it is found to contain a required weight of fines, discharging the fines and thereafter performing succeeding operations volumetrically by filling the chamber until it overflows, the overflowing fines being returned down a shoot 68 to the storage bin 69. The overflowing fines operate a pivoted vane in the overflow shoot 68 and the vane closes a switch to cause a fluid-pressure cylinder to close the gate 13. Excess fines supplied to the storage shoot 12 are returned to the bin 69 through a shoot 77. The measuring chamber and weighing means are as described in Specification 786,923.
Patent GB-980060-A (GB)
Title: Improvements in or relating to a vehicle suspension suitable for use in graders and other earth working machines
IPC: E02F9/02
Filed: 1962-08-09
Abstract: 980,060. Road vehicle suspensions. RICHIER S.A. Aug. 9, 1962 [Aug. 11, 1961], No. 30586/62. Heading B7D. A grader comprises a pair of front wheels and two pairs of rear wheels, each rear wheel 1, 2 on each side of the vehicle being mounted on an arm 3, 4, respectively, pivoted at 5, 6 to the vehicle frame 17. The arms 3 and 4 are integral with levers 7 and 8 connected to double-acting hydraulic jacks 11 and 12 pivoted at 15 and 16 to the vehicle frame, the jacks on each side being connected as shown in Fig. 5 by lines 13 and 14. Hydraulic fluid is supplied under pressure by a pump 18 and the lines 13 and 14 may be connected to the pump 18 or to reservoir, or may be isolated, by valves operable by handles 19. With the lines 13, 14 isolated, movement of one wheel below a centre line AMN, Fig. 2, through an angle a between its support arm MB and the centreline, causes a corresponding movement of the other wheel through an equal angle a between its support arm NC and the centreline.
Patent GB-1060438-A (GB)
Title: Pressure compensated bellows joints
IPC: F16L51/03
Filed: 1964-08-04
Abstract: 1,060,438. Expansion joints. POWER AUXILIARIES Ltd. Aug. 4, 1964 [July 19, 1963], No.30630/64. Heading F2G. Ducts 12 and 14 are connected by a pressurecompensated joint 10 comprising an inner tube 20 connected by a coupling 16 to the duet 12 and enclosed by an outer tube 22 connected by a coupling 18 to the duct 14, two aligned, axially spaced bellows 42 and 44 encircling the inner tube 20 and spaced from it and the outer tube 22 each connected at one end in fluid-tight manner to the outer tube at 36 and to the inner tube at 110 respectively, an outer bellows 46 encircling the inner bellows 42 and 44 and spaced from them and the outer tube, said outer bellows having its ends connected in fluid-tight manner to the free ends of the inner bellows by way of rings at 82 and 96, and perforated supports connecting the tube 20 to the bellows 42 at 60 and the tube 22 to the bellows 46 at 80. The spaces between the bellows and the inner tube 20 are connected to atmosphere at 120 whilst the spaces between them and the outer tube 22 are connected to the pressure in the ducts by way of the opening below the space 124, thereby maintaining the bellows loaded radially in compression when the pressure inside the ducts is above atmosphere. The bellows may be metal or plastic; the tubes are preferably of metal.
Patent GB-932667-A (GB)
Title: Power action for typewriter
IPC: B41J9/26
Filed: 1960-09-06
Abstract: 932,667. Typewriters &c. SPERRY RAND CORPORATION. Sept. 6, 1960 [Sept. 9, 1959], No. 30658/60. Class 100 (4). A power snatch-roll operated mechanism for a portable typewriter is adjustable to vary the impression force collectively or individually by varying the time of engagement of the actuating pawls, mounted on a power ring, with the toothed power roll. Key levers 19 for each key 18 cause the depression of corresponding trip latches 29 to engage a trigger 129 to pivot a pawl carrier 118 to engage a pawl 126 with a power roll 98 rotating at a constant speed. The type bars 41 are actuated by a linkage including a link 59 pivoted to a stud 61 of a power ring 62 which has a bushing 63 assembled on a support tube 67. The pawl carrier 118 is also pivoted to the stud 61. When the pawl 126 is driven by the roll 98 to effect impression the ring 62 is rotated about the tube 67 until the nose 128 of the pawl reaches the edge of a slot 71 in the tube 67 through which the pawl passed to engage the roll. Continued rotation of the ring 62 cams the pawl out of engagement with the roll and relatches the pawl carrier 118 by engaging it with a ledge 132 of the trigger 129. The impression force of all the type bars can be adjusted by setting the tube 67 with its slot 71 in a different position so that the time during which the pawl is engaged is varied. A finger lever is provided to effect and set this adjustment. The striking force of each individual type bar can be adjusted by adjusting an individual impression spring 96 which is contacted by a prong 78 of the ring 62 to determine the point at which the type bar continues by momentum to effect impression. Repeat impression.-Depression of a key 18 is arrested by a rubber or like strip 143, Figs. 1, 13, and certain or, if desired, all the key levers 119 contact a bridge portion 146 allowing additional pressure to cause further depression which is effective to cause repeat operation of the function selected by that key. In this position of a key during the first impression action the ring 62 strikes the latch 29 swinging it until a limit pin 138 contacts the right-hand stop 139 in which position on the return of the pawl carrier 118 after the pawl 126 has been disengaged, the trigger 129 contacts the latch 29 preventing the carrier 118 from becoming re-latched so that the pawl 126 immediately re-engages the roll 98 and another actuation results. Ink ribbon feed and vibration is effected by a prong 77 of a ring 62 engaging a bail 79 to rotate it and its support band 82 about the tube 67 to actuate the ribbon feed and vibrator mechanism.
Patent GB-780374-A (GB)
Title: Improvements in device for combined repeating or straight rolling
IPC: B21B41/06
Filed: 1955-10-26
Abstract: 780,374. Rolling. BIRDSBORO STEEL FOUNDRY & MACHINE CO. Oct. 26, 1955 [Feb. 8, 1955], No. 30665/55. Class 83 (4). Repeaters 27, Fig. 1, for rolling mills are slidable laterally out of the operative position and have troughs 44 which are brought into line with the mill passes for guiding straight stock to or from a mechanism for transferring the stock to successive passes. The repeaters are movable along rails 38 by double-acting hydraulic cylinders 54 (not shown) and when in the inoperative position the straightstock passing through the troughs 44, Fig. 4, over the top surface of the repeaters is prevented from engaging in the repeater grooves 40, 41 by the insertion of fillers 46. Troughs 62, 66, Fig. 8, attached to the repeater act as guides for the work entering and leaving the mills 77, 80 and a further trough 65 attached to the mill 80 guides the work from a mechanism 79 for turning the bar which may also be attached to and move laterally with the repeater. Specification 779,539 is referred to.
Patent GB-538475-A (GB)
Title: Improvements in the manufacture of rubber and like hose
IPC: B29C48/10
Filed: 1939-11-24
Abstract: 538,475. Braiding-machines. HANSSON, B. O. N. Nov. 24, 1939, No. 30701. Convention date, Dec. 10, 1938. [Class 74 (i)] [Also in Groups V and XXVIII] An arrangement for the continuous manufacture of reinforced rubber lined hose comprises an extrusion machine 2 furnished with an elongated mandrel 13 adapted to support the extruded hose during reinforcement e.g., by braiding or taping. As shown, the mandrel is hollow and is of reduced diameter and is furnished with enlargements 11 to support the hose during application of a tape 6 which is pressed against the hose by rollers 8 or caterpillar tapes adapted also to draw the tube forward. Following the application of a second tape the hose is covered with lead 9 from a lead press 10, adapted to serve as a vulcanizing mould. Soapy water or other lubricant is admitted to the interior of the extruded hose through a hole in the core 1 and a pressure medium may be injected through the hollow mandrel.
Patent GB-249596-A (GB)
Title: Improvements in and relating to apparatus for measuring liquids
IPC: G01F3/36
Filed: 1924-12-23
Abstract: 249,596. Harvey, E. W. Dec. 23, 1924. Liquid meters of the Kind comprising xneasuring chambers 6, 7 alternately filled and emptied by valves, controlled by rods 27, 30 carried by floats 26, 29, have a single inlet valve 15 connected to a single outlet valve. The valves may be weighted at 17, 21 and actuated by inclined portions 28, 31, or the float rods may carry contacts adapted to close circuits so that the valves are actuated by electric means.
Patent GB-1485392-A (GB)
Title: Gear forming
IPC: B21H5/00
Filed: 1974-08-21
Abstract: 1485392 Rolling gear teeth SOUTHWESTERN INDUSTRIES Inc 21 Aug 1974 [31 Aug 1973] 30940/75 Divided out of 1485391 Heading B3M Gear teeth are cold rolled into the smooth surface of a rotatable gear blank by forming teeth profiled to produce teeth in the blank having a pressure angle of at least substantially 28 degrees.
Patent GB-323296-A (GB)
Title: Improvements in seats for motor cars or coaches
IPC: B60N2/02
Filed: 1928-10-26
Abstract: 323,296. Lamplugh, H. A. Oct. 26, 1928. Seat adjustments.-A motor car or coach seat comprises a back carried by supports adjustably engaging guides or rails fixed to the seat so that the back is adjustable towards or away from the front edge of the seat without changing the angular relation between the back and seat, and the seat includes means for controlling the adjustment of the back, such means being located either forwardly of the front edge of the seat or outside the sides of the seat. Such a vehicle seat is shown in Fig. 1, the back 1 having supports 2, 3, carrying pins 4 which engage a series of holes in the flanges 9, 10 of the guides 5. Modifications are shown in Figs. 4, 6 and 7, that shown in Fig. 6 comprising a cam like member 20 which grips the edges of the slot 21 when pressure is exerted on the back. In the construction shown in Fig, 9, the back is moved by the operation of a threaded nut and hand wheel 30, 29 provided forwardly of the front edge of the seat. The guides are preferably shaped to conform to the contour of the seating surface.