baber/WOPTO huggingface dataset:
Patent GB-813462-A (GB)
Title: Production of petroleum hydrocarbon resins
Inventor: RAE ROBIN WILLIAM
IPC: C08F240/00
Filed: 1956-06-08
Abstract: A resin is prepared by polymerizing a petroleum fraction boiling in the range 150 DEG  to 300 DEG  C., obtained by the thermal cracking at between 600 DEG  and 800 DEG  C. of an aromatic concentrate from a petroleum fraction boiling in the range 150 DEG  to 350 DEG  C. and containing at least 60 per cent by weight of aromatic hydrocarbon in the presence of a Friedel Craft catalyst.  The aromatic concentrate may be extracted with liquid sulphur dioxide under pressure at from - 12 DEG  to - 50 DEG  C., or by solvents such as furfural, nitrobenzene and phenol.  The thermal cracking may take place in the vapour phase alone or in the presence of an inert diluent, such as steam in amounts for example of 0.1 to 10 mols. per mol. of hydrocarbon.  The required fraction, boiling range 150 DEG  to 300 DEG  C. is separated, by quenching with the injection of water or oil, removing the gaseous products and fractionally distilling. Catalysts include aluminium chloride alone, or as a complex with aromatic hydrocarbons such as xylene, and boron trifluoride or its complexes with diethyl ether, acetic acid or phenol and the polymerization may be batchwise or continuous, with agitation at from - 50 DEG  to 150 DEG  C., if desired in the presence of an inert solvent.  The catalyst is removed from the product which is then washed with alkali, the hydrocarbon boiling up to about 300 DEG  C. distilled off and recycled to the cracking step and the resin vacuum, steam or inert gas stripped.  Examples describe the preparation of resins from the liquid sulphur dioxide extract of raw kerosine derived from Middle East crude.
Patent GB-496103-A (GB)
Title: Improvements in and relating to the soldering of alloys
IPC: B23K35/00
Filed: 1938-06-15
Abstract: Alloys containing aluminium, particularly alloys consisting of iron nickel and aluminium, with the contingent addition of elements such as cobalt, copper, chromium, manganese, tungsten, molybdenum, titanium and silicon, and also non-ferrous alloys containing up to 14 per cent of aluminium, such as aluminium bronze and aluminium-nickel alloy, have the surface aluminium removed prior to soft soldering. This may be effected by hot hydrochloric acid, which may contain 5 per cent of hydrofluoric acid, by hydrofluoric acid, by molten potassium or sodium hydroxide, or by a water solution thereof or any strongly alkaline solution.  An alloy containing iron, nickel, and aluminium may be immersed in molten potassium-hydroxide for about 3 minutes and then immersed in molten solder.  Instead of immersing in the molten hydroxide the alloy may be heated and a stick of the hydroxide melted thereon.
Patent GB-1157075-A (GB)
Title: Duplicating Process
IPC: C09D11/02
Filed: 1966-04-25
Abstract: 1,157,075. Printing plates. XEROX CORP. 25 April, 1966 [29 April, 1965], No. 17937/66. Heading B6C. [Also in Divisions B2 and D2] A duplicating process comprises applying imagewise pressure to a donor which is coated with inking material and which is in contact with a first receiving sheet, separating the receiving sheet and placing it in face-to-face contact with a transfer sheet and applying pressure, then separating these sheets so as to retransfer some of the inking material from the receiving sheet to the transfer sheet. The inking material contains pigment, wax, a resin and a modifying agent, and the transfer sheet (see Division D2) comprises a substrate coated with the same chemical type of wax and resin as are used in the inking material. Up to 20 copies can be obtained by pressing the transfer sheet against copy paper. Preferably the ratio of wax to resin in the transfer sheet coating differs from that in the ink by no more than 10%. The transfer sheet coating may be of weight from 0À5-3À5 lb./ream of the substrate. The wax may be microcrystalline beeswax, paraffin, palm, carnauba, polyethylene ouricury or candelilla wax or mixtures thereof the resin may be natural or synthetic, e.g. polystyrene, polyterpene, styrene-butadiene copolymer, chlorinated rubber, polymers made from hydrocarbon fractions, polyvinyl acetate, polyacrylic resin or cellulose acetate. The ink material can also contain a wax soluble dye, iron oxide, carbon black, coal fines and also petrolatum or polysiloxane as the modifying agent.
Patent GB-477581-A (GB)
Title: Improved method and apparatus for producing profiled sections from sheet metal by rolling
IPC: B21D5/08
Filed: 1936-06-29
Abstract: 477,581. Making profile sections. METAL TRIM, Ltd., and PENKALA, E. June 29, 1936, No. 17994. [Class 83 (iv)] Bending.-In passing strip metal through a succession of shaped rolls to make a profile section, the section is prevented from corrugating or edge waving by adjusting the roll pass of each pair up or down as required to receive the metal without stress from the previous rolls. The profiled rolls are mounted on spindles 3, 4 adjustable up or down in the housings by top and bottom screws 3b, 4b, Fig. 2. A succession of such roll stands are mounted on a base 1, Fig. 1, and are aligned by the stepped cross connections 6 of each stand fitting over a longitudinal centring bar 1b. To accommodate roll spindles of varying lengths each stand is adjustable transversely by the holding down bolts 5 being adjustable in T-slots 1a. Each roll pair is driven through a telescoping wobbler shaft 12 and universal bearings. Three &c. roll stands are grouped for driving together through dog clutches 15a, Fig. 5 (not shown), from a common gear-box through gearing, and such group can be declutched from the drive when fewer roll stands are required. Fig. 6 shows a series of roll pairs in which the pass line may be adjusted from the horizontal position line 18 to the position line 19, Fig. 7 shows a V-section rolled, but with undesired corrugations 20a, which are prevented by adjusting the various pass levels to suit the slope of the work as in Fig. 8.
Patent GB-1139024-A (GB)
Title: Improvements relating to the welding of metallic members
IPC: C09D123/22
Filed: 1966-04-06
Abstract: 1,139,024. Polymer compositions. COMPAGNIE GENERALE DU DURALUMIN ET DU CUIVRE " CEGEDUR." 6 April, 1966 [7 April, 1965], No. 18006/68. Divided out of 1,139,023. Heading C3P. Fluid compositions for protecting the surfaces of metallic members during welding in an oxygen-free atmosphere are constituted by 70 to 99 weight per cent of a single normally liquid homopolymer capable of depolymerization to gaseous monomer by thermolysis at the welding temperature, and an organic nitrogen compound or alcohol. The homopolymer may be a polyisobutylene or polybutylene, and the other compound an amine or diamine or organic acid salts thereof, e.g. diamine dioleates, or a C 3-12  alcohol, particularly isopropyl alcohol.
Patent GB-186440-A (GB)
Title: Improvements in or relating to pedals for cycles, and the like, and to the manufacture of the same
IPC: B62M3/08
Filed: 1921-07-04
Abstract: 186,440. Broadbent, W. H., and Bruce, J. S. July 4, 1921. Foot-clips.-Relates to foot-grips of the type comprising two side projections or grips f having lateral limbs e adapted to slide in guides to permit adjustment of the distance between the projections or grips f. The lateral limbs e are of channel-section, and the side flanges of the channel are continued around the elbows and up the projections f, where they may be bent together to form grips of triangular section. The limbs e slide in a channel c on a plate a secured by a spring clip b to the central tube of the pedal, the limbs e having slots g engaged by securing-bolts i adapted to be passed through selected holes h in the channel c.
Patent GB-120799-A (GB)
Title: Improvements in or relating to Shrapnel Shells.
Inventor: JENKINS EDWARD COTTRELL
IPC: B21K1/00
Filed: 1917-12-06
Abstract: 120,799. Jenkins, E. C., Jenkins, R., Jenkins, R. W., Jenkins, H. C., and Roberts, R. Dec. 6, 1917. Projectiles.-Shrapnel shells are bottled in dies while cold. The rough forging a, Fig. 1, is cut to length, centred, turned internally and externally, the driving-band groove cut and waved, the base turned-off and the band e pressed into its groove. The nose of the shell is then greased and it is placed on the movable table g of a press, being positioned by a centreing member h, which also serves to extract the shell after bottling. When the table rises, the nose is bottled and thickened by the die j. If desired, the shell may be partly bottled when in the rough turned state. The nose is then undercut, screwed and grooved at m, Fig. 9, and the band e is turned and the end faced to length if required.
Patent GB-458767-A (GB)
Title: Improvements in and relating to calcium sulphate plasters
IPC: C04B28/16
Filed: 1935-06-24
Abstract: A plaster consists essentially of calcium sulphate hemihydrate and anhydrite together with a small proportion of or more accelerators for the hydration of the anhydrite one and a small proportion of a retarder for the hydration of the hemihydrate consisting of calcium citrate, succinate, malate or propionate. Accelerators specified are potassium and zinc sulphates.  The proportion of hemihydrate in the plaster is preferably at least one third by weight of the anhydrite.
Patent GB-1181678-A (GB)
Title: Security Alarm
Inventor: MINASY ARTHUR JOHN
IPC: G08B13/24
Filed: 1967-04-20
Abstract: 1,181,678. Inductive signalling. A. J. MINASY. 20 April, 1967 [6 May, 1966], No. 18116/67. Heading H4U. [Also in Division G4] In a system for detecting "protected" articles passing a check point, each article is "protected" by attaching a small resonant circuit, the check point being provided with means for generating an inductive or electromagnetic field the frequency of which is swept beyond the bandwidth of the "protecting" resonant circuit. The check point may have separate transmitting and receiving coils (Fig. 5, not shown) or may have a pair of capacitive electrodes (Fig. 6, not shown) through which the "protected" article must pass or may be associated with the doorway (Fig. 1) having orthogonally mounted coils common to transmitter and receiver. The transmitter (Fig. 4) is preferably a 1 Mc/s. transistor oscillator 14 the frequency of which is modulated by a varactor diode under control of a 500 c/s. R.C. transistor oscillator 24. The receiver includes a diode detector 30 which feeds a carrier-removing filter and a twin T notch filter 34 (which removes the 500 c/s. component) the output of which feeds a transistorized relay-operating circuit 40 actuating an alarm 42. In the absence of a "protected" article from the vicinity of the check point, the small 500 c/s. output of the receiver is stopped by the notch filter but when a "protected" article is brought near the check point, the frequency sweep of the field beyond the band width of the "protecting" resonance circuit causes 1000 c/s. pulses to pass the notch filter and actuate the alarm. The "protecting" resonant circuit may consist of a small ferrite cored inductor shunted by a capacitor with or without capacitive electrodes on opposite sides of the article. Alternatively a printed circuit may be used to protect such articles as clothing or books from shop-lifting.
Patent GB-856664-A (GB)
Title: Improvements in or relating to perchlorethyene and hydrogen chloride manufacture
IPC: C07C17/00
Filed: 1958-06-06
Abstract: Perchlorethylene is produced by reacting together chlorine and ethylene dichloride, the perchlorethylene being separated as a liquid from the hydrogen chloride formed.  The impure hydrogen chloride is then contacted with ethylene dichloride, which absorbs impurities, and this ethylene dichloride is passed directly to the reaction zone of the preparation of further perchlorethylene, without first removing impurities.  The ethylene dichloride and impure hydrogen chloride are preferably contacted in counter current in a column in which the ethylene dichloride enters at - 24 DEG  to - 28 DEG C. and leaves at 1 DEG  to 2 DEG C., the pressure in the column being about 80 psig.  The reaction zone is preferably maintained at 260 DEG  to 540 DEG C. and 5 psig to 20 psig, and may contain a fluidised bed of a catalyst such as sand, silicon carbide, clay, diatomaceous earth, synthetic aluminium silicate, synthetic silica-alumina gel, alumina gel, or fuller's earth.ALSO:Hydrogen chloride, produced when chlorine and ethylene dichloride are reacted together to give perchlorethylene, is freed from impurities, principally phosgene, by first separating the perchlorethylene as a liquid, and then contacting the impure hydrogen chloride with ethylene dichloride, which absorbs the impurities.  The ethylene dichloride containing the removed impurities is passed directly to the reaction zone for the preparation of further hydrogen chloride and perchlorethylene, without first removing the impurities from the ethylene dichloride. The ethylene dichloride and hydrogen chloride are preferably contacted in countercurrent in a column in which the ethylene dichloride enters at -24 DEG C. to -28 DEG C. and leaves at 1 DEG C. to 2 DEG C., the pressure in the column being maintained at about 80 p.s.i.g.  The reaction zone is preferably maintained at 260 DEG C. to 540 DEG C. at a pressure of 5 p.s.i.g. to 20 p.s.i.g. and may contain a fluidised bed of a catalyst such as sand, silicon carbide, clay, diatomaceous earth, synthetic aluminium silicate, synthetic silica-alumina gel, alumina gel, or fuller's earth.
Patent GB-1103481-A (GB)
Title: Improvements relating to electrical resistive elements
Inventor: SCOLES GRAHAM JOHN
IPC: H01G2/00
Filed: 1964-05-01
Abstract: 1,103,481. Resistors; inductors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 30 April, 1965 [1 May, 1964], No. 18198/64. Headings HIS and HIT. A potential divider circuit in which the section R<SP>1</SP> between the tapping point Y and the higher voltage terminal X comprises a resistive and/or inductive member R 1  and extends between spaced and generally parallel screening members A, B. The member R 1  may follow a zig-zag path along a plane oblique to A and B or a helical path of constant pitch about an axis perpendicular to A and B. Member R may be hinged to A and B so that the spacing between A and B can be varied. A third conductive circuit which is earthed may be provided (Fig. 6, not shown).
Patent GB-1048284-A (GB)
Title: A process for manufacturing a building element
IPC: B27N3/08
Filed: 1963-05-08
Abstract: 1,048,284. Moulding building elements. E. SMITS. May 8, 1963 [May 18, 1962; Jan. 24, 1963; April 18, 1963], No. 18230/63. Heading B5A. Building elements are made by mixing together finely-divided organic material, e.g. sawdust or fine wood chips; aluminium silicate, e.g. kaolin, at least one expanded or foamed resin (e.g. polyurethane) filler; a hardener for a resin to be subsequently added; and water. This mixture is mixed with a material polymerizable under heat and pressure, e.g. urea or phenol formaldehyde, poured into a suitably lubricated mould and coldpressed to a thickness slightly greater than the ultimate required thickness. The material then hot-pressed, the pressure released, and then further hot-pressed to form the final moulded element.
Patent GB-1162741-A (GB)
Title: Improvements in or relating to Information Display Arrangements
Inventor: WIKKENHAUSER GUSTAV
IPC: G01S7/22
Filed: 1967-04-21
Abstract: 1,162,741. Radar. SMITHS INDUSTRIES Ltd. 19 April, 1968 [21 April, 1967], No. 18418/67. Heading H4D. In an information display arrangement a first means supplies sequential signals to a second means which provides a composite display, and a third means scans said display and detects the presence of a predetermined property in any element thereof. A fourth means then selects from the sequential signals the one corresponding to the said element of the display. As described, a radar transmitter-receiver 1 having a rotating aerial 4 supplies video signals to a cathode-ray display tube 2 and to a data processor 3. An associated timing unit 6 supplies signals to the deflection means of the cathode-ray display tube 2 and of a cathoderay pick-up tube 17, and also to the data processor 3. A plan-position display is produced on the screen 5 of the cathode-ray tube and is photographed by a camera 7 on a film strip 8, which is advanced by steps, each corresponding to a complete sweep of the aerial 4, by unwinding from a reel 9. The film strip 8 then passes through a processing station 11 and a projector 12 and is wound upon a reel 10. The projector 12 throws an image upon the back 13 of a translucent screen 14, which is viewed on its front 15 by a radar operator. The cathode-ray pick-up tube 17 scans the image on the back 13 of the screen 14, but its threshold is set so that it gives no output on account of illumination only by the projector. If, however, the radar operator should illuminate a selected location of the display by means of a light source 16, the tube 17 will give an output when the said location is scanned, and this output causes the data processor 3 to select from the video signals from the receiver 1 the one corresponding to the marked location. Since the time interval between display on the screen 5 and projection on the screen 14 is short, there will not normally be any significant change in the positions of a target on the two screens, although the processor 3 may incorporate compensating delay means if desired. The data processor 3 may provide bearing and range particulars of a marked target. For air traffic control, where aircraft comprise transponders giving individually coded replies on interrogation by the radar station, the data processor 3 may give decoded information from the marked target. Specifications 814,079 and 814,080 are mentioned in connection with the stepping and the processing of the film strip 8.
Patent GB-941188-A (GB)
Title: Apparatus for pelleting or cubing granular, powdered or like material
IPC: B30B11/20
Filed: 1960-05-25
Abstract: 941,188. Roller-and-ring extrusion machines. E. SOUTHAM. May 25, 1960, No. 18424/60. Heading B5A. Apparatus for pelleting or cubing granular, powdered or like materials comprises an annular member 15 having radial perforations 17 mounted for rotation about a horizontal axis and a driven roller 30 having its axis parallel with that of the annular member 15 frictionally engaging the inner surface 18 of the annular member so as to drive the annular member and to press granular or powdered material, which is fed into the annular member, through the perforations 17, a stationary knife (not shown) serving to cut off the material issuing through the perforations. The annular member 15 is freely supported for rotation on rollers 14, outwardly directed radial flanges 16 engaging with the rollers 14 to maintain the outer surface 19 of the annular member 15 clear of the rollers. The roller 30 is mounted for movement towards and away from the inner surface 18 and the knife is adjustable towards and away from the outer surface 19.
Patent GB-352209-A (GB)
IPC: F16D67/00
Filed: 1930-06-17
Abstract: 352,209. Hydraulic transmission of power. JUNKERS, H., 21, Kaiser-platz, Dessau, Anhalt, Germany. June 17, 1930, No. 18508. Convention date, June 20, 1929. [Class 69 (ii).] Hydraulic power transmission mechanism applicable for driving compressors of internal-combustion engines comprises hydraulic clutches or groups of clutches with adjustable slip arranged in parallel, the driven machine being subdivided into portions cumulative in their effect, each portion being driven by a clutch or group of clutches. In the form shown in Fig. 3, compressor rotors 2<1>, 2<11> are driven through clutches 21, 22 of the meshing gear wheel type, in which the slip is regulated by a throttle valve. Each clutch may be replaced by a group of clutches 21<1>, 22<11>, Fig. 5, and one clutch or the clutches of one group may be incapable of regulation. The Specification as open to inspection under Sect. 91 (3) (a) comprises a form in which the driven machine is not subdivided. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1267704-A (GB)
Title: Device for controlling machine functions in invoicing or like machines
Inventor: HIRT PAUL
IPC: G06C29/00
Filed: 1969-04-10
Abstract: 1,267,704. Business machine control systems. KOMBINAT ZENTRONIK VEB. 10 April, 1969, No. 18532/69. Heading G4H. In an invoicing machine, program start functions and printing carriage functions such as tabulating movement may be preselected during the running of a program, carriage functions having priority over start functions, start functions can also be preselected during execution of carriage functions, and any input through a keyboard and preselection of carriage functions is prevented when the start functions have been preselected.
Patent GB-613407-A (GB)
Title: Improvements in and relating to caps for personal wear
IPC: A42B1/06
Filed: 1946-06-20
Abstract: 613,407. Caps. AYRES & SMITH, Ltd., and AYRES, S. June 20, 1946, No. 18586. [Class 63] The inner edge of the peak 1 is cut to present a straight portion 2 which engages the forehead at the centre, and deeply curved concavities 3, 4 which prevent pressure on the temples at the sides of the forehead. The lining 5 is cut with the usual curvature at the front but is secured to the material covering the peak only at the point 6, leaving pockets 7 which may be padded with resilient material, or left unfilled.
Patent GB-355865-A (GB)
Title: Improvements in or relating to mercury vapour rectifiers
IPC: H01J13/14
Filed: 1930-06-18
Abstract: 355,865. Mercury-vapour rectifiers. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and GALLIZIA, E., of General Electric Co., Witton, Birming- ham. June 18, 1930, No. 18596. [Class 39 (i).] Back-ignition due to the splashing of condensate is prevented by the provision of means to collect the condensate from the metal walls of the tank 3 and the condensing chamber 2 and to return it to the cathode through pipes, ducts, &c. Thin metal drip shields 6, 7, Fig. 1, having flanges 8, 11 are provided below the top plate 1 and below the top of the condensing chamber and are connected by pipes 9, 12. Splashing of the mercury from the pipes 12 is prevented by a cylindrical baffle 13. In a modification, axial gutters 14, Fig. 2, are connected by staggered pipes 15. The outlet pipes 24 are arranged so that the mercury flows therefrom to the cathode in a spiral path, Fig. 3 (not shown). The flow of mercury across the drip shield 7 is restrained by three annular perforated baffles 19. In a further modification, Figs. 4 and 5 (not shown), continuous helical gutters are provided in the tank and in the condensing chamber and the shield 7 is provided with a spiral baffle. The anode-shields pass through holes in the shield 6, the holes having flanges to prevent the flow of mercury therethrough. The invention may be applied to the side-arm type of rectifier.