baber/WOPTO huggingface dataset:
Patent GB-553733-A (GB)
Title: Improved polymeric materials
IPC: C08G18/40
Filed: 1941-07-02
Abstract: 553,733. Synthetic resins. DU PONT DE NEMOURS & CO., E. I. July 2, 1941, No. 8323. Convention date, July 2, 1940. [Class 2 (iii)] Low molecular weight linear polymers, e.g. as defined in Specification 461,237 are converted into high molecular weight polymers by heating them in admixture with polyisocyanates or thiocyanates. The low molecular weight polymers may be obtained by polymerization of glycols and dibasic acids amino alcohols and dibasic acids, glycols diamines and dibasic acids, amino alcohols, diamines and dibasic acids glycols dibasic acids and hydroxycarboxylic acids. The reaction may be carried out at 150-200C. for 10-45 minutes or at 75-100 for longer periods. Reactive modifying agents, e.g. cellulose acetate or viscose, casein, zein, soya protein, polyvinyl alcohol, wood flour may be introduced along with the isocyanates and inert fillers e.g. carbon black, clay, asbestos, lithopone, mica, zinc oxide, titanium oxide whiting, red iron oxide, magnesia, litharge.
Patent GB-1125423-A (GB)
Title: Water conversion process and apparatus for the desalination of water
IPC: B01D3/06
Filed: 1967-02-22
Abstract: 1,125,423. Desalination of water; flash evaporators. WESTINGHOUSE ELECTRIC CORP. 22 Feb., 1967 [21 April, 1966], No. 8362/67. Heading B1B. Saline water which contains calcium sulphate in solution is purified by pumping the saline water through conduit 60 and the condenser tubes 66 of a multi-stage flash evaporator, passing the preheated water into a tank 76 where the water is held for a period in contact with anhydrite seed crystals thereby reducing the concentration of dissolved calcium sulphate in the water, and then conducting the treated water through a heater 80 into the first flash chamber of the evaporator. The flashed vapours condense on the outer surface of tubes 66, and the condensate (desalinated water) is withdrawn from the evaporator by pump 82. Brine is withdrawn from the last flash chamber, and a portion of the brine is recycled, with fresh feed, to condenser tubes 66, while the remainder of the brine is discharged through outlet 72. Tank 76 is provided with an agitator 84 and with an outlet 86 from which some of the smaller calcium sulphate crystals are pumped through conduit 88 to the feed inlet conduit 60. Also described is a multi-stage flash evaporator wherein an additional holding tank is disposed between two sections of the condenser tubes. This apparatus is operated without recirculation of brine.
Patent GB-1382906-A (GB)
Title: Method of forming an integral coloured anodic oxide film on alu minium pressure die castings
IPC: C25D11/14
Filed: 1972-02-23
Abstract: 1382906 Anodizing aluminuim alloys SUMITOMO CHEMICAL CO Ltd 23 Feb 1972 [24 Feb 1971 18 May 1971 19 May 1971] 8419/72 Headings C7A and C7B Coloured anodic films are formed on aluminium alloy die castings comprising 0.1 - 1.3 wt per cent Cr, 0.2 - 3.4 wt per cent Mn (these being in amounts lying within the quadrilateral A B C D shown in Fig. 1), up to 0.2 wt per cent Fe, up to 0.1 wt per cent Si, optionally 0.005 - 0.8 wt per cent Co and 0.1 - 5.0 wt per cent Zn and up to 0.3 wt per cent other impurities by applying a roughening treatment, a brightening treatment and then anodizing, e.g. in 5-20 wt per cent H 2 SO 4 .
Patent GB-514942-A (GB)
Title: Improvements in or relating to plastering compositions
IPC: C04B14/28
Filed: 1938-03-19
Abstract: 514,942. Plasters. CARPENTER, G. March 19, 1938, No. 8502. [Class 22] A plaster for walls, ceilings &c. consists of gypsum plaster of the hemi-hydrate type and precipitated chalk. Accelerators, retarders and other fillers, such as sand, crushed stone, or granulated or foamed slag may be added.
Patent GB-707445-A (GB)
Title: Improvements in motor control systems
Inventor: SYKES WILLIAM HARRISON
IPC: H02P7/30
Filed: 1950-04-05
Abstract: 707,445. Control of D.C. motors. ENGLISH ELECTRIC CO., Ltd., April 5, 1951 [April 5, 1950], No. 8533/50. Class 38(3) [Also in Groups XXXV and XXXIX] The speed of a separately excited D.C. motor is automatically controlled by supplying the armature from an A.C. supply via a saturable reactor and a rectifier, the armature voltage being compared with a reference voltage and the resultant used to control the saturating point of the reactor. A current limiter is also provided. The motor has its field 41 supplied from a stable D.C. source and its armature 61 supplied with an automatically controlled voltage (see Group XXXV) from the saturable reactor 50 and rectifiers 55, 56, 155, 156. To limit the starting current the impedance of the reactor may be increased by a control winding 142 fed from a shunt 62 via a metal rectifier 63 a non linear characteristic so that it passes a substantial current to the limiting winding only when the voltage across the shunt rises above a predetermined value. The limiting effect is increased by shunting the main control winding 42 (sensitive to armature voltage) by a metal rectifier 163 which conducts when the control current through the winding tends to exceed a predetermined limit in an attempt to restore the fall in armature voltage caused by the action of the limiting winding 142. In an alternative system, a bias winding 143 is added to the reactor so as to increase the core saturation and so ensure that under normal conditions the control current in winding 42 is unidirectional. A reversal of control current tending to overcome the drop in armature voltage due to the limiting winding 142 is prevented by a rectifier 164 (shown dotted) connected in series with the winding instead of the shunt rectifier 163.
Patent GB-1196398-A (GB)
Title: Method for Use in Fabricating a Microwave Tube
Inventor: MANOLY ARTHUR EDWARD
IPC: H01J23/26
Filed: 1969-02-17
Abstract: 1,196,398. Travelling-wave tubes. VARIAN ASSOCIATES. 17 Feb., 1969 [19 Feb., 1968], No. 8549/69. Heading H1D. A slow-wave circuit is introduced into and mounted within the bore of the body portion of a microwave tube by gluing it on a mandrel, heating the body portion to expand the bore, and introducing the mandrel, cooled by a coolant flowing therethrough to prevent melting of the glue, into the expanded bore, whereafter the body portion is allowed to cool and provide an interference shrink-fit on the slow-wave circuit, and the glue is removed-by a solvent, for example. As described, the method is applied to a simple helix 1 mounted between three support rods 3 of beryllium oxide, alumina, boron nitride, or sapphire, which mayafter they have received a lossy coating of pyrolitically deposited carbon-be fixed to the helix by glue brushed on at the same time as the helix is glued to the steel mandrel 2. Flats are thereafter ground on those portions of the rods which will contact the tube body, as shown. The tube body may be formed of a tubular stack of alternatively magnetic and non- magnetic rings (Fig. 8, not shown), and is heated to about 800 C. in a N 2 /H 2  atmosphere to expand the bore. Reference is additionally made to the use of the method with bifilar or cross-wound helices, or with ring-bar structures.
Patent GB-948626-A (GB)
Title: Oxygen lance
IPC: C21C5/46
Filed: 1960-03-10
Abstract: 948,626. Metallurgical converters; blowing lances. DEMAG A.G. March 10, 1960 [March 10, 1959], No. 8569/60. Heading F4B. Apparatus for moving a lance into and out of a converter comprises a lance support carried on tracks disposed externally of the waste gas hood, the support passing through the walls of the hood and being movable horizontally. As shown, a lance 6 is mounted on a support 5, the ends of which project through slots 4 in the walls of the hood and are supported on rollers 9 running on a track 10 (Fig. 4). A fixed support 7 guides the lance into the converter 1 and a cable 52 may be provided to hold the lance in the rest position. The supply of gas and, if desired, powdered materials may be provided by means of tubes 12, 13 passing through one side of the support. The support may be in two parts joined together by a screwthread.
Patent GB-1478733-A (GB)
Title: Modular n-way switches
IPC: H01H29/28
Filed: 1975-02-28
Abstract: 1478733 Conducting liquid switches COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 28 Feb 1975 [4 March 1974] 8582/75 Heading H1N A selector switch comprises an assembly of switch modules, each of which comprises a conductive block formed by two similar halves 1, 2 defining a pair of crossed bores 3, 4, one of which 4 contains a pair of axially aligned contacts t, t<SP>1</SP> insulated from the block 1, 2 by insulating spacers p, p<SP>1</SP> and selectively interconnectable by a relay operating mechanism R contained in the other bore 3, one contact t of each pair being connected to a link wire 14 and the other contact t<SP>1</SP> being connected to or constituting a terminal. In one embodiment, the two halves 1, 2 of each block are fastened together by screws 8, 8<SP>1</SP> and contain a relay R whose contacts t, t<SP>1</SP> are interconnected by passing a current through filament wires f, f<SP>1</SP> via a logic unit (L) (Fig. 3, not shown) to heat a gas in a tube causing a drop of mercury to be moved into contact with the contacts t, t<SP>1</SP>. One of the contacts t<SP>1</SP> of each relay R is connected to a coaxial output cable C1-Cn whose metallic sheath (12) (Fig. 2, not shown) is soldered to tags (13, 13<SP>1</SP>) secured to the block. The link wire 14, to which the other contact t of each relay R is connected, is supported by insulating spacers 15 in semi-circular channels 5 in the blocks which are closed by a metal screen 16. A coaxial input cable Co is connected to the link wire 14 by a wire 11<SP>1</SP> in a central block M. In another embodiment, an input line Lo (Fig. 6, not shown) can be connected to any one of three output lines (L 1 -L 3 ) each of which is provided with a pair of modules. A metallic screen (E) is placed between each module pair.
Patent GB-450827-A (GB)
Title: Improvements in line composing and type slug casting machines
IPC: B41B11/38
Filed: 1936-03-23
Abstract: 450,827. Type-bar-making machines. INTERTYPE, Ltd., 215, Farnham Road, Slough, Buckinghamshire. March 23, 1936, No. 8606. Convention date, Jan. 7. Addition to 402,809. [Class 100 (iii)] Quadding-apparatus.-In the apparatus described in the parent Specification, means are provided for justifying short lines to a constant predetermined measure when desired, in addition to the means for justifying such lines to irregular lengths. For this purpose, the vicejaw locking-device, which is acted upon by the justification bar in its ascent, in order to clamp the short line, is adapted to be removed from the influence of the justification bar, and to serve merely as an abutment for justification of the line. The locking-device comprises, as heretofore, a toothed pawl 10, pivoted to a lever 8, and tending under the action of a spring to engage a toothed part of the jawactuating bar 5. The lever 8 has pivoted to it a three-faced stop 15, and is urged to the left by a spring, to hold the stop 15 in contact with a fixed stop 16. When the face 25 of the stop 15 is opposed to the stop 16, the head 28 of the lever 8 is in the path of a roller 27 on the justification bar 29, so that the rise of the bar exercises a clamping action on the pawl 10, as described in the parent Specification. Short lines are thereby justified to a variable length. When short lines are to be justified to a constant length, the stop 15 is turned, so as to bring one of the faces 23, 24 into action. As those faces are farther from the pivot of the stop than is the face 25, the head 28 of the lever 8 is held out of the path of the roller 27. No clamping of the line then occurs, the pawl 10 serving only as an abutment for the jaws during justification. The short lines are composed by the operation to a length slightly less than that which they are to occupy when justified, the shortage not exceeding one toothspace of the pawl 10 and bar 5, which may be one em. The two faces 23, 24 of the stop 15 differ by half an em, to permit that amount of alteration in the length of the lines. The pawl 10 is normally held down out of engagement with the bar 5 by a latch, which is withdrawn by the movement of the mould-wheel towards the matrices. The pawl is again disengaged from the bar 5 after the casting by the usual downward movement of the vice-jaw closing attachment 50. Specification 405,869 is referred to.
Patent GB-667778-A (GB)
Title: Improvements in and relating to the bonding of yarns to rubber
IPC: C08J5/06
Filed: 1949-03-30
Abstract: 667,778. Bonding rubber to yarns. COURTAULDS, Ltd., and TALLIS, E. E. March 29, 1950. [March 30, 1949] No. 8651/49. Class 70. Natural or synthetic rubber is bonded to yarns by vulcanizing the rubber in contact with yarns which have been treated with glyoxal, preferably in a 2.5 per cent aqueous solution. The synthetic rubber may be a butadiene-styrene, or butadienea.crylonitrile copolymer. Small quantities of lactic acid, tartaric acid or maleic acid, or sodium carbonate or triethanolamine may be added to the glyoxal solution. The yarns may be regenerated cellulose obtained by the viscose process and may be utilized in making tyres, conveyer belts and V- belts. Specification 467,500, [Group IV], is referred to.
Patent GB-981192-A (GB)
Title: Improvements in or relating to 4 hydroxytryptamine esters
IPC: C07D209/16
Filed: 1961-03-09
Abstract: The invention comprises compounds of the general formula <FORM:0981192/C2/1> and their acid addition salts in which either each of R1 and R2 represents a C1-4 alkyl group with the proviso that R1 and R2 need not be dissimila or R1 and R2 together represent a tetra-or penta-methylene chain, R3 represents a C1-4-alkyl group, a C2-4 alkenyl group or an aralkyl group containing up to 10 carbon atoms inclusive and R4 represents the radical of an organic carboxylic acid containing up to 10 carbon atoms inclusive or sulphuric acid and the preparation thereof by esterifying an appropriate 4-hydroxytryptamine with an acid anhydride (R4)2O or acid halide R4-halogen or (when R3 represents an alkenyl group) reacting a compound of the general formula <FORM:0981192/C2/2> (wherein R is an organic carboxylic acid residue which is not split off under the reaction conditions) with an appropriate alkenyl halide.  1 - Methyl - 3 - (21 - diethylaminoethyl) - 4 - hydroxyindol is prepared by condensing 3-(21-diethylaminoethyl) - 4 - benzyloxyindole with methyl iodide and hydrogenolysing the 1-methyl - 3 - (21 - diethylaminoethyl) - 4 - benzyloxyindole so formed.  Similarly were prepared 1 - methyl - 3 - (21 - piperidinoethyl) - 4 - benzyloxyan -4-hydroxy-indoles.  Pharmaceutical compositions comprise the tryptamine esters of the invention together with an inert carrier. The compounds show central sympathetic nerve system stimulant action and some show serotonin antagonistic properties.
Patent GB-1138783-A (GB)
Title: Improvements in or relating to stranding machines
IPC: D07B3/08
Filed: 1967-02-23
Abstract: 1,138,783. Stranding machines. FRISCH KABEL-UND VERSEIL MASCHINENBAU G.m.b.H. 23 Feb., 1967 [23 Feb., 1966], No. 8724/67. Heading D1T. A stranding machine has stationary bobbins 15 and a rotating carrier 3 in a stand 1; the carrier 3 having a cantilever draw-off pulley 7 that revolves about the axis of the carrier and is rotated about its own axis by sun and planet gears 8, and a cantilevered take-up reel 9 that revolves with the carrier and is rotated by an electric motor 11 which also drives a laying device 10. A brake 16 operated by a stop motion and a reel discharge jack 18 are also provided.
Patent GB-275687-A (GB)
Title: Improvements in or relating to advertising devices and the like of the moving band type
IPC: G09F11/29
Filed: 1927-01-31
Abstract: 275,687. Stephens, S. Jan. 31, 1927. Reel and non-endless web apparatus.-In advertising devices in which a display band is wound from one drum to another, which drums are driven through a free-wheel arrangement whereby the winding-off drum is disconnected from the drive, one or both of the free-wheels consists of a loose sleeve c mounted on the drum spindle b and carrying pivotally mounted pawls g which engage ratchets h, h<1> disposed above and below the sleeve on the drum f and driving pulley e respectively. The current through the motor is reversed at the end of each wind by a switch operated by fingers moving along a screw rod rotated from one of the pulleys e. A curtain is lowered during movement of the band in one direction, and raised during initial movement in the opposite direction, by a cord 6 passing round the curtain roller and having its ends wound in opposite ways on a spool 4 driven by friction discs 1, 2 on the drum f and spool spindle 3, or by a friction segment engaging a pulley shaft. A flange and band brake may be disposed on the top of each drum f.
Patent GB-838972-A (GB)
Title: Fluid control valves
IPC: E21B34/00
Filed: 1957-03-18
Abstract: 838,972. Valves. OTIS ENGINEERING CORPORATION. March 18, 1957 [Sept. 5, 1956], No. 8846/57. Class 135. A valve comprises a valve body connectible in a flow line, tubular means having a passageway therethrough and arranged concentrically within the valve body to provide an annular space therebetween, means closing the opposite ends of said space, a seat across an intermediate portion of said tubular means, a valve member having an opening therethrough and seatable on said seat for opening and closing the passageway upon rotation about an axis transverse to the opening therethrough, a control frame movable in opposite directions longitudinally within said space and connected to said valve member for rotating it between opened and closed positions upon such movement, and control pressure means for moving the control frame in said opposite directions. The cylindrical valve body 10, Fig. 1, is connected in a flow line. A tubular member 18 extends from one end of the body and a floating tubular member 19 urged upwardly by a spring 33, is located at the other end to form a flow passage 11 which is controlled by a closure member 16 which seats on seats 14, 15 formed by the ends of the tubular members 18, 19. The member 19 has a flange 34 which slides inside the body 10 and is sealed by a ring 37. Located in the annular space 21 between the tubes 18, 19 and the body 10 is a piston-like frame 25 which is acted on by two opposed springs 30a, 35. The closure member 16 has flattened sides 43, 44, Fig. 4, from which lugs 38 extend to engage cam slots 39 in plates 46 fixed to the frame 25. In operation, when control fluid is admitted to the body 10 via line 32, Fig. 1, and port 31, the frame 25 is moved downwardly and the cam slots 39 engage the lugs 38 to rotate the closure member 16 to the open position. If the line 32 is connected to exhaust, the spring 35 moves the frame 25 upwardly and the cam slots 39 engage the lugs 38 to rotate the closure member 16 to the closed position. The spring 30a prevents the frame 25 from moving upwardly too quickly. The space within the frame 25 is vented by breathing across the valve seats and through a port 37a in the member 18. An internal shoulder 41 of the body 10 and the flange 34 of the member 19 prevent over-travel of the frame 25.
Patent GB-526586-A (GB)
Title: Improvements in and relating to air raid shelter devices for use with frames for man hole covers and the like
IPC: E04H9/10
Filed: 1939-03-21
Abstract: 526,586. Canopy for manhole-frames. WOODROW, W. J., WOODROW, J. W., WOODROW, A. C., and WOODROW, W. J. [trading as WOODROW & CO., A. C.]. March 21, 1939, No. 8957. [Classes 20 (i) and 107] A manhole cover frame 10 is provided with recesses 9 near its four corners to receive projections 8 on brackets 7 which are secured to an air-raid canopy superposed above the manhole. Sleeve nuts 14 coact with bolts 11 passing upwardly from the frame to secure the canopy in position. The canopy is built of arcuate plates joined together at their upper edges by a cap plate 2 and stiffened by angles 3 disposed transversely of the plates. Slots 17 may be provided along the lower edges of the plates to receive the bolts securing the brackets to the canopy and these bolts may also be used to secure longitudinal stiffener angles 4 at these positions. Specification 524,768 is referred to.
Patent GB-214250-A (GB)
Title: Improvements in or relating to sound amplifiers, particularly for use with wireless telephone receivers
IPC: G10K11/02
Filed: 1924-04-09
Abstract: 214,250. Music Master Corporation, (Assignees of Eckhardt, W. L.). April 11, 1923, [Convention date.]. Sound magnifying and' directing appliances.-A horn for a loud-speaking telephone comprises an inner curved metal section 20 and an outer flaring wooden section 21, the two sections being detachablv fitted together by means of a headed stud 29 on the section 20 engaging an oblique slot in a metal band 27 fitted in the section 21. In a modification, Fig. 4, the upper end of the section 20 is provided with bars or slats extending right across the sound passage.
Patent GB-823929-A (GB)
Title: Improvements in or relating to the heating of furnaces
IPC: F23D14/00
Filed: 1955-03-29
Abstract: 823,929. Furnace burners. SUMMERS & SONS Ltd., J., and WILLOTT, R. L. March 23, 1956 [March 29, 1955], No. 9086/55. Class 75(1) [Also in Group XII] A burner for heating the internal refractory surface of a furnace (see Group XI) to a radiant temperature comprises separate nozzles for discharging a layer of raw fuel sandwiched between the said refractory surface and a current of primary air so that the air mixes with the fuel as it travels along the surface throughout the extent of its travel until burnt. As shown, the burner, suitable for gaseous fuel, projects through the furnace wall 5, the tubular discharge portion 4 of the casing part 1 forming a wall member for cylindrical fuel discharge orifice 13. A tubular partition 7 provides within itself an air passage 8 fed from the air duct 21 in the part 2 of the casing 1 through the spider 15 secured to the end of the tube 7. The tube 7 forms with the casing part 1 an annular passage 9 fed with raw fuel from a duct 10, the passages 8 and 9 being isolated from each other by a flexible diaphragm 22 extending between the flanges of the casing parts 1 and 2 and the spider 15. The burner end of the tube 7 projects radially outwards beyond the discharge end 12 of the portion 4 to define therewith the annular fuel discharge nozzle 13. A spider 14 located within the tube 7 receives in a central plain opening 16, a spindle 18 carrying at its outer end a mushroom-shaped deflector 19 forming with the radial outward projection 11 of the tube 7 the air discharge nozzle 20, the deflector 19 and the projection 11 being so shaped as to form between them an air passage of venturi form. The nozzles 13, 20 are adjustable together in the same direction by threads 17, 24 of opposite hand and different pitch on the spindle 18 rotatable by a hand wheel 28. The air outlet 20 is so directed with respect to the fuel discharge orifice that the discharged air mixes with discharged fuel throughout the extent of travel of the fuel to produce a combustible mixture located close to the wall 29 of the furnace. In an alternative construction (Fig. 2, not shown) for use with oil fuel, the spindle 18 and the tube 7 are adjustable individually and the portion 4 is formed with a water jacket to cool it. In another construction a narrow slit-like fuel discharge nozzle and a wider slit-like air discharge nozzle are both directed upwardly from the lower part of a flat refractory wall of the furnace. The Provisional Specification describes a modification of the construction shown in Fig. 1 having independent adjustments for the spindle 18 of the tube 7.