baber/WOPTO huggingface dataset:
Patent GB-704869-A (GB)
Title: Improved process for the continuous manufacture of artificial threads, fibres, filmsand such like products from viscose
IPC: D01F2/06
Filed: 1950-01-01
Abstract: In the manufacture of regenerated cellulose threads, films and like products from viscose, the cellulose xanthogenate still present in the products after they leave the spinning bath is decomposed by first treating the products with an aqueous solution containing an inorganic acid and at least one inorganic salt, in which the molar ratio of acid to neutral salt is below 1, and thereupon, after freeing the products from the bath liquid, e.g. by washing with water, treating the products with an acid aqueous solution containing no or very little salt.  The process is characterized by the first treatment reducing the xanthogenate ratio of the products to about 0.10, by the second treatment taking place at not over 60 DEG  C., preferably at room temperature, and by the second treatment being followed by a treatment with steam until the xanthogenate ratio of the products has decreased to 0.003 or less.  Finally the products are desulphurized, e.g. by washing with water.  The xanthogenate ratio is defined as the ratio of the total number of xanthogenate groups still present in the products to the total number of anhydro-glucose units therein. In the example threads from a spinning bath containing 8 per cent. of sulphuric acid and 14 per cent. of sodium sulphate are passed through a decomposition bath at 80 DEG  C. containing 4 per cent. of sulphuric acid and 7 per cent. of sodium sulphate.  The threads are stretched about 50 per cent. in this bath, then passed through a water bath at 20 DEG  C. and thereafter through a 1 per cent. aqueous sulphuric acid solution at 25 DEG  C.  The threads are then passed through a long chamber supplied with saturated steam and finally washed with water at 50 DEG  C.  The low xanthogenate ratio of the thread substance after the treatment with steam enables a more rapid and complete desulphurizing and bleaching of the threads to be accomplished than in prior art processes, and the total steam consumption is reduced.  Specification 692,023 is referred to.
Patent GB-1275427-A (GB)
Title: Improved writing circuit for electrostatic recorders
Inventor: MARSHALL EDWARD WILLIAM
IPC: G06K15/14
Filed: 1969-05-22
Abstract: 1275427 Recording apparatus VARIAN ASSOCIATES 22 May 1969 [22 May 1968] 26247/69 Index H1X and 5X A electrostatic recorder comprises an electrode 5 and a stylus 4 which define a gap containing a recording medium 1, writing pulses being applied to a switching circuit including a transistor 11 and enhancement pulses being applied to the electrode 5, the combined effect of the pulses being sufficient to cause avalanche discharge in the gap and a charge image to be formed on the recording medium. The enhancement pulses are applied to the electrode via a transistor 17 and a step up transformer 18 so that the bias developed on the electrode is the sum of the 300 volt potential of a power supply and the potential of the enhancement pulses. A writing pulse applied to the base of the transistor 11 removes the 300 bias from the stylus to cause discharge in the gap. A potentiometer 22 which supplies a bias potential to electrode 21 enables the trace density on the  recording medium to be controlled. In a modification, enhancement pulses of 600 volts amplitude are supplied from a pulse generator directly to the electrode 5.
Patent GB-151606-A (GB)
Title: Apparatus for manufacturing glass articles
IPC: C03B9/02
Filed: 1920-09-13
Abstract: 151,606. Miller, W. J. Sept. 23, 1919, [Convention date]. Blowing.-Relates to rotary paste mould machines in which the blowpipe with gather on the end is placed in the machine by hand. The upper part of the machine is shown in Fig. 1 and the lower part in Fig. 1<a>. The blowpipes I are gripped and rotated by gear-driven rubber rollers 58 and an idler roller 59. The rollers 58 are automatically separated at the required times for the release of the blowpipe bearing the blown ware by a cam-operated slide 53. The blowhead 67 is lowered on to the blowpipe E by a fixed cam 75. Air is supplied through a rotary valve 83. The moulds F are mounted on brackets 24 so that they can be adjusted vertically and radially. They are opened and closed by adjustable stationary cams G, H through cranks 35 and telescopic shafts 31, 33. A spring release 34 comes into action if a mould jams. Cooling water is discharged upon the moulds F from pipes M, 97, the excess passing away through passages 17, 18 and a pipe 19. The height of the mould table D is adjusted by nuts E, 15.
Patent GB-814953-A (GB)
Title: Improvements in or relating to gaseous discharge devices
IPC: H01J17/16
Filed: 1957-08-20
Abstract: 814,953. Cold-cathode tubes : cathode materials. WESTERN ELECTRIC CO. Inc. Aug. 20, 1957 [Sept. 13, 1956], No. 26321/57. Class 39(1). A gaseous discharge device which may exhibit a negative resistance characteristic comprises a ceramic envelope made in two parts which when joined together provide means for supporting the anode and cathode. In one form, the two halves 11, 12, Fig. 1, provides a cathode cavity 22 and supports 17 for the wire anode 20. The metallised surfaces 25, 27 and 29 complete the cavity cathode, the cathode lead and the anode lead respectively. The cathode cavity is connected to the interior of the envelope through the orifice 23. Means for producing the initial ionisation required in gas filled tubes is provided e.g. a spot of radium bromide 30. No lead-in wires or supports other than those provided by the envelope are required. In another form one of the pillars, 17, may be omitted and the cathode may be in a U-shaped groove, 35, Fig. 4, the anode, 38 being bent at the end 39. In both cases the anode connection to the exterior of the envelope is provided by the exhaust tubulation, 15, but this may be omitted and the tube sealed in the correct atmosphere. The filling may be of neon at a pressure of 90 mm. of mercury, the envelope of aluminium oxide, the cathode and metallised strips of zirconium, molybdenum or columbium. Specifications 686,427 and 814,952 are referred to.
Patent GB-296907-A (GB)
Title: Improvements in or relating to devices for forming lines or the like on the surfacesof roads
IPC: E01F9/06
Filed: 1927-10-05
Abstract: 296,907. Forbes, A. H. Oct. 5, 1927. Surface markings.-Road. surface lines or marks for traffic guidance are formed from nail-like units each comprising a stamped plate A of rustless steel with a sharp vertical lip C round the under edge which bites into the road surface, the plate being secured by one or more spikes passing through a hole or holes in the plate. The under edge of each hole may also be provided with a sharp lip D. The lip C may be interrupted or cut away at one or more points. In the form shown, a single central square hole is provided for a spike of square section.
Patent GB-379116-A (GB)
Title: Puncture self-sealing inner tubes
IPC: B29C73/18
Filed: 1931-09-21
Abstract: 379,116. Pneumatic tyres. CARNAHAN, F. G., 755, Ardmore Avenue, Akron, Ohio, U.S.A. Sept. 21, 1931, No. 26376. [Class 144 (ii).] An inner tube 3 of vulcanized rubber is provided at the tread part with a chamber containing non-vulcanizable plastic compound 5 and a single unbroken layer of frictioned fabric 6 vulcanized to the inner wall 7 of the tube. To increase the flexibility of the tube, the side edges of the fabric are not frictioned. In a modification, as shown in Fig. 8, in which the chamber is formed on the outside of an inner tube by vulcanization, the fabric 6 is separated from the wall 7 of the tube by a thin film of the compound 5.
Patent GB-1076148-A (GB)
Title: Improvements in or relatingt to insulated lamination stacks
Inventor: LITTLE JOSEPH RICHARD
IPC: H02K15/10
Filed: 1964-06-25
Abstract: 1,076,148. Electric insulation. LITTON PRECISION PRODUCTS Inc. June 25, 1964, No. 26391/64. Heading H1A. [Also in Division H2] The rotor core of an electrical machine is insulated by taking a sheet of thermoplastic material wider than the length of the core, wrapping it around the core and forcing it down into the slots and retaining it there. When all the slots have been insulated and the ends of the sheet overlap, the projecting ends can be forced down over the end faces of the core and the assembly baked to set the sheet in this position. The process may either be carried out by hand or by machine and after baking and trimming the insulated core is ready for winding in the normal way. The coating around the active periphery of the core may be burned away after slot wedges have been inserted to protect the windings. A similar method may be used to insulate a machine stator except that in this ease the projecting ends of the sheet are pulled outwards to cover the end faces. One of the machines described is used to wrap the core and force the plastic down into the slots and retain it there by inserting a slug and a second machine is used to fold down the projecting ends of the sheet.
Patent GB-264135-A (GB)
Abstract: 264,135. Hochstadter, M. Jan. 6, 1926, [Convention date]. Drawings to Specification. Junction boxes; cable joints.-In high tension sables, channels for the reception and transmission of a liquid or gaseous pressure medium are formed of impermeable and flexible material so that the pressure medium and insulating medium are kept separate, and the junction boxes and end sleeves of the cable are filled with the pressure medium, and are constructed so as to stand the pressure.
Patent GB-825585-A (GB)
Title: Improvements in carrying cases
Inventor: WRIGHT ROBERT HARCOURT
IPC: B65D5/478
Filed: 1957-08-22
Abstract: 825,585. Boxes. PORTLAND ADVERTISING SERVICE Ltd. Nov. 15, 1957 [Aug. 22, 1957], No.26481/57. Classes 18 and 133. A carrying box A has a lid B which is held in position by a looped card engaging a slot d<SP>1</SP> in one of its sides, the two strands extending divergently over the base of the box and each passing through two holes d in the opposite side of the lid. The part of the cord d<SP>2</SP> between the pairs of holes is used as a handle. Specification 825,584 is referred to.
Patent GB-1015133-A (GB)
Title: Improvements in or relating to differential pressure relays
Inventor: SMITH ALAN
IPC: H01H35/34
Filed: 1961-07-21
Abstract: 1,015,133. Pressure gauges. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Oct. 19, 1962 [July 21,1961], No. 26499/61. Heading G1L. A differential pressure relay comprises two flexible members one side of each member being exposed to the respective pressures and the other sides being supported by an incompressible liquid in a closed system comprising a container associated with each flexible member and an interconnecting conduit having a bore small compared with the area of each flexible member so that movement of the members produces a magnified movement of the liquid in the conduit and the arrangement is such that a different liquid is provided in each container have dis-similar surface tensions such that a liquid to liquid interface access in a portion of the conduit. In this arrangement shown in Fig. 1 an inner chamber 14 is filled with one liquid and an inner chamber 13 is filled with another liquid and in operation a pressure acting on the outer faces of the diaphrams 1, 2 causes the liquids to slide a piston 4 within a conduit 3 to alter the impedance of two detecting coils 17,18 in a bridge network. The alteration of the impedance of the coils alters the balance of the bridge network to operate a relay 24 through an amplifier 23. In a further embodiment shown in Fig. 2 the different liquids in the chambers 13, 14 form an interface 52 and since one of the liquids is electrical conducting. The movement of the interface over the end of an electrode 54 will cause or interupt a the passing of a current between electrodes 53, 54.
Patent GB-1467471-A (GB)
Title: Derivatives of 1,3-disubstituted-2,4-quinazolinediones
IPC: C07D401/06
Filed: 1974-06-14
Abstract: 1467471 Derivatives of 1,3-disubstituted-2,4- [1H,3H]-quinazolinediones MILES LABORATORIES Inc 14 June 1974 [18 June 1973] 26516/74 Heading C2C Novel compounds of the Formula I wherein R<SP>1</SP> and R<SP>2</SP> are hydrogen, halogen, nitro, alkoxy or alkylamido, m is 1 to 4, R<SP>3</SP> is piperidyl, alkylamino or dialkylamino, n is 1 to 8, R<SP>4</SP> is alkylamino, dialkylamino or radicals of the formula in which R<SP>5</SP> is hydrogen, halogen, or alkyl, X is a pharmacologically acceptable, non-toxic acid, p and q are each 1 or 2, in which alkyl groups have 1 to 3 carbon atoms, may be prepared by reacting a compound of the Formula V with a compound Cl(CH 2 ) m -R<SP>3</SP>, and in the case where R<SP>1</SP> and/or R<SP>2</SP> is alkylamido, hydrogenating the corresponding nitro compound in the presence of a C 1-3  alkane carboxylic acid anhydride. Pharmaceutical compositions of the compounds I with the usual excipients show vasodilatory activity when administered orally, rectally, intravenously, parenterally or intramuscularly.
Patent GB-1347605-A (GB)
Title: Pressurised fluid control assemblies
IPC: F16K31/02
Filed: 1972-06-07
Abstract: 1347605 Valves SOC ANON AUTOMOBILES CITROEN 7 June 1972 [9 June 1971] 26518/72 Heading F2V A pressure regulator comprises a spool 3 controlling the connection of work port 5 to supply and exhaust ports 6, 7, the spool being responsive via pin 9 to work port pressure which is opposed by spring 12 and assisted by a force exerted by a wound armature 20 disposed in the air gap 16 between polepiece 14 and yoke 15 of an electromagnet incoporating a permanent magnet 13. The armature is supplied with a pulsed current which prevents sticking of the spool and which may be formed by pulses of fixed frequency and a variable width determined by a control signal, or by pulses of fixed width and a variable frequency determined by a control signal. In the first case, the pulses may be produced by a flip-flop connected to a comparator receiving a control signal and the output of a sawtooth generator. In the second case, the pulse may be produced by a voltage-frequency converter receiving the control signal. The moving parts may work in oil to assist damping.
Patent GB-715469-A (GB)
Title: An improved method of and machine for winding webs, more particularly webs of stout material
IPC: B65H18/14
Filed: 1950-10-31
Abstract: 715,469. Winding webs. VEDAG VEREINIGTE DACHPAPPEN-FABRIKEN AKT.- GES. Oct. 31, 1950 [Oct. 31, 1949], No. 26583/50. Class 100 (1). [Also in Groups VIII and XVII] in a method of winding a web of paper, roofing felt or like material into a succession of rolls, the web is fed to a coreless winding device whilst being continuously measured and is severed automatically without interrupting the feeding of the web, to produce rolls of a predetermined weblength. As shown, a web is drawn over a measuring cylinder 1 by cylinders 23, 24, such that when a predetermined length of web has been fed, the web is severed by a cutter 20, 21 synchronized with the cylinder 1. The leading edge of the severed web is fed by endless belts 7 towards rollers 8 and curved plates (not shown) which deflect the web towards driven winding cylinders 16 and 17 rotatably mounted in rocking levers 14 and 15, such that the web is then deflected downwards to initiate the winding of a roll, the web being pressed against the bands 7 by a pressure cylinder 37. Increase in diameter of the roll causes upward displacement of cylinders 16 and 17, while the rollers 8 are retained by a locking device until winding is complete; whereupon the locking device is released by mechanism actuated in synchronism with the cylinder 1 and the web is severed by the cutter 20, 21. The locking device releases the rollers 8 which rock downwards against the action of a counterbalance 12. The wound roll is then fed by bands 27, to a position beneath a knife 33 actuated by the roll through a lever 31, 32 to cut a length from a suspended wrapping strip unwound from a roll 28. The cut strip is draped over the wound roll which is later rotated, by passage between rollers 26 and 34, to wrap the strip around the roll. The roller 34 pivots against the action of a spring about an axis 35 to allow the wrapped roll to drop on to a table 38.
Patent GB-713932-A (GB)
Title: Improvements relating to motor-cycle frames
IPC: B62J35/00
Filed: 1952-10-24
Abstract: 713,932. Motor-cycle frames; fuel containers. TURNER, E., and TRIUMPH ENGINEERING CO., Ltd. May 26, 1953 [Oct. 24, 1952], No. 26703/52. Classes 79(3) and 136(3) In a frame and tank construction for a motor cycle, the forward end of the top frame member 19 beneath the tank is bent upwardly to extend into a lug 21 of the stationary portion 17 of the steering head and to lie alongside the upper end of the inclined front frame member 20. The tank is formed of two pressings 11, 12 which are welded together along a longitudinal plane 13. A flute 23 is provided along the underside of the tank to partially straddle the frame member 19 and a portion of the lug 21. The frame members 19, 20 may be deformed, where they jointly enter the lug 21, to be of D-section with their flat faces abutting one another.
Patent GB-1271937-A (GB)
Title: Improvements in or relating to arrangements for controlling the alternate flow of fluids from different sources to an element such as a heat exchange surface or a reactor
Inventor: SWITHENBANK JOSHUA
IPC: G05D11/035
Filed: 1968-06-05
Abstract: 1,271,937. Vortex devices. NATIONAL RESEARCH DEVELOPMENT CORP. June 2, 1969 [June 5, 1968], No. 26813/68. Heading G3H. [Also in Division F1] Fluid e.g. gas streams 10, 19, Fig. 1, are directed alternately by fluid logic switches 11, 20 to a common element 13 e.g. a heat exchanger. As shown two heat exchangers 13, 17 are traversed alternately by hot and cold gas streams 10, 19 according to which of the control ports of switches 11, 20 are pressurized through channels 28, 29. Thus when channel 28 is pressurized the hot gas stream 10 is directed from inlet 40 of switch 11 to outlet 41, an exclusive inlet 26 of a module 12 through a combined inlet/outlet 23, the exchanger 13 and a further module 14 to a cooled gas exhaust manifold 15, whilst the cold gas stream 19 is directed through an outlet 42 of switch 20, a module 18 exchanger 17 and a further module 16 to a heated gas exhaust manifold 21. On relieving pressure in control line 28 and pressurizing control line 29 the flows of hot and cold gas are switched. Each module 12, 14, 16, 18 comprises a vortex chamber 22, Fig. 2, having a tangential inlet/outlet 23, an annular exclusive outlet 24 and an exclusive nozzle inlet 26.
Patent GB-883656-A (GB)
Title: Liquefaction of gases
Inventor: HASHEMI-TAFRESHI HADI
IPC: F25J1/02
Filed: 1960-08-03
Abstract: 883,656. Cold separation of gas mixtures. CONCH INTERNATIONAL METHANE Ltd. Aug. 3, 1960, No. 26847/60. Class 8(2). A compressed gas mixture e.g., natural gas is separated into a major high boiling liquid component e.g., methane at low pressure and a minor low boiling component e.g., nitrogen by liquefying the whole of the compressed mixture in heat exchanger 2, 4 traversed by severe flowing liquid ammonia and ethylene respectively in paths 3, 5 sequentially expanding the liquid through valves 6, 8, 10 into separating chambers 7, 9, 12 venting to atmosphere the so separated nitrogen gas from the last chamber 12 through a duct 15, recompressing the nitrogen gas separated in chambers 7, 9 in compressors 22, 20, 23 and reliquefying a major portion in exchangers 2, 4 and in an exchanger 27 traversed by a portion of the liquid methane content of chamber 9 whilst the remainder is liquefied in an exchanger 16 traversed by the vented nitrogen, and expanding the so-liquefied nitrogen through valves 32, 34 into the separating chamber 12 from which product liquid methane is pumped into a storage tank 14 at atmospheric pressure. Nitrogen-rich vapour is removed from the gas space of the tank 14 by a pump 35. The carbon-dioxide content of the compressed natural gas is solidified during liquefaction and is drained from the separating chamber 12 through a duct 18. Specification 879,809 is referred to.
Patent GB-1175079-A (GB)
Title: Process for Treating Solutions Obtained as By-Products During the Manufacture of Phthalic Anhydride
Inventor: JUSTON PAUL
IPC: C07C51/353
Filed: 1967-06-12
Abstract: 1,175,079. Citraconic, maleic acids and anhydrides. PRODUITS CHIMIQUES PECHINEY-SAINT-GOBAIN. 12 June, 1967 [13 June, 1966], No. 26941/67. Heading C2C. Citraconic anhydride is obtained by separating at least part of the maleic acid present in an aqueous solution obtained as by-product during the manufacture of phthalic anhydride and heating the resulting solution with a solvent having a boiling point of not more than 140 C., whereby the solution is dehydrated and the citraconic acid present is converted to citraconic anhydride which dissolves in said solvent, separating the residue from the resulting solution and evaporating the solvent. The preliminary separation of the maleic acid may be effected by concentrating the initial aqueous solution whereby maleic acid crystallizes out and is separated from the solution, by converting it to fumaric acid and separating the fumaric acid from the aqueous solution, or by partially neutralizing the initial aqueous solution so that the maleic acid present is converted to an acid metal maleate, which is separated off, and then acidifying this solution. The citraconic anhydride and maleic acid thus obtained may be converted, into citraconic acid and maleic anhydride respectively.
Patent GB-484473-A (GB)
Title: An improved method of and machine for applying slip, glaze or other surface materials to earthenware tiles, and the like
IPC: B28B11/04
Filed: 1936-10-05
Abstract: <PICT:0484473/III/1> A method of applying glaze or other surfacing substance to earthenware tiles, plates and the like consists in placing the articles in grippers on an intermittently moving carrier, and during the periods of rest applying the glaze to the articles by lifting an applying-device, or a tank containing the glaze, towards the articles.  The conveyer consists of endless chains 18 which pass around sprocket wheels 16, 17, and are moved intermittently over a number of tanks 40 by a ratchet and pawl device 35.  Attached to the chains 18 are carriers 36 provided with spring-operated grippers the jaws of which are opened, for loading or unloading the tiles, by cams 87 fixed alongside the upper run of the conveyer.  The devices for applying the glaze comprise perforated plates 66 which are raised out of, and lowered into, the glaze in the tanks 40 by rods 63 reciprocated vertically by the driving-gear of the conveyer.  The plates 66 carry smaller plates on which sponges are attached, and they may be adjusted vertically, by screws 110, for regulating the thickness of the coating of glaze by bringing more or less of the sponges into contact with the tiles.  In operation, tiles are placed on the carriers 36, and the grippers close on the tiles as the carriers approach the sprocket wheels 17.  When a carrier is below the wheels 17, the grippers open momentarily and drop the tile on to a table 88 or flexible platform, and are closed again immediately, to bring the surface of the tile to a definite level.  The tiles as they move are cleaned by a rotary brush 96, and they then move over the tanks 40 while mottle, glaze, or the like is applied by the lifting and lowering of the plates 66.  The movement of the plates also agitates the glaze.  Finally, the tiles are carried past a position where devices 98 scrape their edges, the excess glaze so removed falling into a tank 99.  Instead of using the plates 66 and the sponges, the tanks 40 may be lifted and lowered, particularly when cups or plates are held by the grippers, to dip the articles more or less into the glaze.