baber/WOPTO huggingface dataset:
Patent GB-1218469-A (GB)
Title: Linear polyurethanes and a process for their preparation
Inventor: KRIMM HEINRICH
IPC: C08L75/00
Filed: 1968-07-30
Abstract: 1,218,469. Linear polyurethanes. FARBENFABRIKEN BAYER A.G. 30 July, 1968 [3 Aug., 1967], No. 36276/68. Heading C3R. [Also in Division C2] Linear high molecular weight polyurethanes are prepared by (i) condensing a binuclear N- alkyl substituted hydroxylamine, in which both the hydroxyl and amino groups are directly attached to an aryl nucleus, with a bifunctional carbonic acid derivative or (ii) the self-condensation of monocarbonic acid derivatives of the N-alkyl substituted hydroxylamines. The N-alkyl substituted hydroxylamine and the bifunctional carbonic acid derivative may be reacted in the melt or in inert organic solvents either in homogeneous solution in the presence of tertiary amines or in a two-phase reaction medium in the presence of aqueous alkali metal hydroxide or carbonate solutions. Other catalyst such as sodium phenoxide or zinc chloride may be used. The self-condensation reaction may be carried out in the presence of a tertiary amine aqueous alkali metal hydroxide solution and other alkaline catalysts in the melt or in inert organic solvents. In specific examples: (1) 2,2-(4-hydroxy-4<SP>1</SP>-methylaminodiphenyl)propane is condensed with diphenyl carbonate, (2) 1,1-(4-hydroxy-4<SP>1</SP>-methylaminodiphenyl)-cyclohexane is condensed with diphenyl carbonate, (3) the phenyl ester of 4- hydroxy - diphenyl - 2,2 - propane - 4<SP>1</SP> - N- methylcarbamic acid is self condensed, (4) the phenyl ester of 4-hydroxy-diphenyl-2,2-propane-4<SP>1</SP>-N-ethylcarbamic acid is self condensed, (5) the phenyl ester of 4-hydroxy-diphenylmethane-4<SP>1</SP>-N-methylaminocarbamic acid is self condensed and (6) the phenyl ester of 1-(6-hydroxy- 1,3,3-trimethylindane)- phenyl-4- N-methylcarbamic acid is self condensed.
Patent GB-430436-A (GB)
Title: Improvements in and relating to electron discharge tubes
IPC: H01J21/20
Filed: 1933-12-27
Abstract: 430,436. Discharge apparatus. GRIGSBY-GRUNOW CO., 5801, Dickens Avenue, Chicago, U.S.A.-(Assignees of Brian, W. S. ; 128, Home Avenue, Oak Park, Illinois, U.S.A.) Dec. 27, 1933, No. 36360. Convention date, Dec. 27, 1932. [Class 39 (i)] A tube comprises a cathode having a grid and anode associated with one portion of it, a second anode associated with another portion, an insulating member secured to some of the electrode supports and a screen between the grid and anode and the second anode secured to the insulating member. In one form, a cathode 14 is surrounded by a grid wound on posts 22, 23 secured in mica spacers 17, 20 and by an anode mounted on post 9. The post 4 also supports the spacers 17, 20 and serves as the cathode lead. A further mica disc 16 mounted on the posts has secured to it by tongues a flanged shield 29 which is connected to the cathode lead 4. Inside the shield a pair of semicircular diode anodes 34, 35 co-operating with the lower end of the cathode 14 is mounted.
Patent GB-922796-A (GB)
Title: Boilers for heating systems
IPC: F24H1/30
Filed: 1960-10-24
Abstract: 922,796. Sectional boilers. I. CIALENTE. Oct. 24, 1960, No. 36424/60. Class 123 (2). A sectional boiler comprises a number of cast-iron sections 6, 6<SP>11</SP> which are arranged side-by-side to form continuous walls of a furnace chamber and are connected between a common upper header 1 and independent lower headers 3, 3<SP>1</SP> by conduits 2, 21 and 7, 71 respectively which are of considerably smaller internal flow area than the headers 1, 3 and are preferably not greater than a fifth thereof. The conduits 2, 2<SP>1</SP> and 7, 7<SP>1</SP> fulfil the function of expansion absorbing members. Each section incorporates three conduits c, each having a mean diameter of less than two inches. In a modification, Fig. 4, (not shown), seriallyinterconnected pairs of sections are arranged in parallel between the headers, the uppermost sections being inclined from the corresponding lower vertical sections towards the upper header.
Patent GB-372284-A (GB)
Title: Improvements in or relating to electric circuit interrupters
IPC: H01H33/76
Filed: 1930-12-03
Abstract: 372,284. High-tension switches. WESTINGHOUSE ELECTRIC & MANUFACTURING CO., East Pittsburg, U.S.A.- (Assignees of Baker, B. P. ; R. F. D., 1, Monroeville, Turtle Creek, and Kees, E. G. ; 413, Pitt Street, Wilkinsburg, both in Pennsylvania, U.S.A.) Dec. 3, 1930, No. 36438. Convention date, Dec. 10, 1929. [Class 38 (v).] Sparking, preventing.-In a switch of the " deion " type the arc is distorted into a V- shaped slot in a nest of superimposed spaced magnetic and insulating plates ; it is maintained by the magnetic plates in the narrow part of the slot and passes through the oil or other fluid (including air or other gas) which is spacially distributed along its length in pockets formed by the plates so that the deionizing substance cannot readily leave the arc path. The insulating plates may be of porous or fibrous material adapted to retain the quenching fluid by absorption and to give off deionizing gas when played on by the arc. In the oil switch construction shown in Figs. 2 and 3 a deionizing quenching structure 11 is suspended on insulating bolts from contact plates mounted on the ends of the lead-in conductors 5, 6. The bridging contact-member 8 operated by the rod 9 has two protuberances 23, 24 both of which engage the pivoted spring- controlled contact-member 15 in the closed position. In opening, circuit is broken first at the protuberance and subsequently, when the movement of the member 15 has been arrested by a stop, an arc is drawn at the protuberance 24 and carried down with the bridging member into the deionizing structure 11 where it is magnetically distorted into the narrow part of the gap. This structure is made up of interleaved insulating plates 29 (with V-shaped slots 35) and magnetic plates 31 all threaded on the supporting bolts. The V-shaped slot in the magnetic plates has an insulated liner 38 covering its edge to prevent the arc coming into contact with the magnetized plates when it is moved into the slots. This liner is wider than the V-shaped slots in the insulating plates 29 so that a series of pockets 41 is formed in the structure. In these pockets oil is trapped ahead of the arc and is fed into the arc in the form of a vapour blast generated by the heat of the arc. A series of nests of plates as described may be arranged with spacers 42 between them as shown in the upper part of Fig. 3 or the spaces may be filled in, as shown in the lower part of the Figure, by insulating plates 44 provided with a number of slotted circular openings 45, Fig. 8, constituting cells to trap the liquid and prevent it being moved ahead of the arc. The whole stack of plates as described thus has a continuous vertically enclosed slot into which the are is moved. The pivoted contact-member is enclosed by a U-shaped insulating member 25 to enclose the arc and a metal shield 26 encloses the contact plate 13 to prevent corona losses and voltage breakdown to the sides of the casing.
Patent GB-1026863-A (GB)
Title: Improvements in or relating to crop gathering means
IPC: A01D46/00
Filed: 1962-09-26
Abstract: 1,026,863. Harvesting hops. A. T. POWELL. Sept. 23, 1963 [Sept. 26, 1962], No. 36476/62. Heading A1F. A hop-bine gathering device comprises a platform 18 having means 19, 20, 21 for attachment to tractor hitch-linkage (not shown) and on which the cut bines can be laid, and a crow's nest 27 supported by the platform and occupied by an operator who cuts the bines. The platform includes front box-section uprights 12, 13 which carry the attachment pins 20, 21 for the hitch-linkage and front and side frames of tubular metal. An upper box-member 15 provides a socket 25 for the stem 26 of the crow's nest and also for a detachable ladder 31. The rear of the device is open. In use, the front and side frames are closed by canvas detachably secured to a removable draw-sheet on the sheet-metal floor 18, hoops (not shown) being provided to receive the bines. When full, the hoops and draw-sheet are slid off the platform and replaced by another such unit.
Patent GB-1520365-A (GB)
Title: Erosion control of an arc electrode
IPC: H05B7/18
Filed: 1976-09-02
Abstract: 1520365 Magnetic control of heating arcs TIOXIDE GROUP Ltd 29 July 1977 [2 Sept 1976] 36502/76 Heading H5H The life of an arc heating electrode is extended by supplying oscillating direct current to a field coil surrounding the electrode where the arc root is located so that field coil current oscillates at a frequency between 5 Î 10<SP>-1</SP> to 1 Î 10<SP>-4</SP> Hz. This causes reciprocation possibly accompanied by rotation of the arc root. A thyristor, a series reactor or a saturable reactor may provide the oscillatory D.C.
Patent GB-785600-A (GB)
Title: Improvements in and relating to the feeding of discrete or finely divided materials from a relatively low pressure container
IPC: B65G53/00
Filed: 1955-12-20
Abstract: 785,600. Pneumatic conveyers. HUMES, Ltd. Dec. 20, 1955 [Dec, 30, 1954], No. 36505/55. Class 78 (1). Finely divided substances contained in a chamber 2, which is at a relatively low pressure, are discharged into a region of substantially higher pressure through a casing 3, the interior of which is divided into a series of compartments 4 having resticted communication with each other, the wall of each compartment being provided near the top with at least one relatively small aperture 5 opening into the region of high pressure. The compartments are formed by partitions 6 each of which has a central aperture 7. These apertures decrease progressively in size from the top partition to the bottom one. The casing 3 terminates in a delivery spout 8 at the bottom of which is a regulator 9a for controlling the rate of discharge. The apparatus shown is stated to be suitable for feeding flux powder to the welding zone of an electric welding system such as that disclosed in Specification 785,601.
Patent GB-1516928-A (GB)
Title: Flame retardant polyphosphonates
IPC: C08G79/02
Filed: 1976-09-03
Abstract: 1516928 Flame retardant polyphosphonates STAUFFER CHEMICAL CO 3 Sept 1976 [15 Sept 1975] 36592/76 Heading C3R A polyphosphonate is prepared by reacting benzene phosphorus oxydichloride, 4,4<1>-thiodiphenol and phosphorus oxytrichloride. The reaction may be carried out (a) in the absence of solvent or catalyst at 120-250 C., (b) in the presence of an anhydrous alkaline earth metal halide catalyst at 90-300 C. or (c) in solution in the presence of an amine acid acceptor.
Patent GB-1511536-A (GB)
Title: Production of anthraquinone
IPC: B01J27/02
Filed: 1975-09-05
Abstract: 1511536 Anthraquinone BASF AG 5 Sept 1975 [7 Sept 1974] 36605/75 Addition to 1346944 Heading C2C [Also in Division B1] The invention comprises a process for the production of anthraquinone by the oxidation of a diphenylmethane derivative with oxygen in the gaseous phase in the presence of a pentavalent vanadium compound as a catalyst at elevated temperature which comprises oxidizing a diphenylmethane compound of the formula (I) in which R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> are identical or different and each is hydrogen or an aliphatic radical, in the presence as catalyst of oxygen-containing compounds of (a) vanadium in an amount, calculated as vanadium pentoxide, of from 1 to 70% by weight; (b) titanium in an amount, calculated as titanium dioxide, of from 29 to 95% by weight; and (c) one or more of the metals tellurium, caesium, thallium and antimony each in an amount, calculated as TeO 3 , Cs 2 O, Tl 2 O or Sb 2 O 3  as the case may be, of from 0À01 to 20% by weight, each based on the oxygen-containing compounds and calculated as total amount of metal oxide.
Patent GB-827634-A (GB)
Title: Improvements in or relating to lead pigments and methods of preparing the same
IPC: C09C1/14
Filed: 1957-11-25
Abstract: A pigment comprises PbO, P2O5 and SiO2 in physico-chemical combination, such combination being brought about by calcination of the intimately mixed oxides.  The oxides may be pebble-milled together before calcination; but the preferred method is to add a solution of a soluble phosphate to a slurry of silica and litharge, then de-water and calcine the solids portion of the slurry, the amount of litharge being in excess of that required to react with the P2O5 and the amount of silica in excess of that required to react with the excess PbO.  There may be from 0.75 mol. to 7.5 mols. of SiO2 per mol. of PbO and from 1/8 to 1/2 mol. of P2O5 per mol. of PbO.  Suitable starting materials are litharge, precipitated silica or ground quartzite, and phosphoric acid or monoor diammonium phosphate.  The calcination step is effected at from 500 DEG  to 850 DEG  C.  Specifications 637,304 and 726,191 are referred to.
Patent GB-449173-A (GB)
Title: Improvements in or relating to dispensing receptacles
IPC: B65D43/20
Filed: 1934-12-21
Abstract: 449,173. Containers for dispensing pellets &c. BARLOW, R., 28, Kingsway, London, and COWAN, A. F., 48, Barnfield Avenue, Shirley, Surrey. Dec. 21, 1934, No. 36636. [Class 18] A dispensing - container of sheet metal or other sheet material, for containing, e.g. tablets or pellets of medicine, has one end formed with an extension flap 2 having a delivery aperture 3 which can be covered by a sliding lid 8 having wings 6 with ribs 7 engaging indentations 4 which limit the movement of the lid. The extension 2 may press resiliently upward against the lid. The wings 6 may extend beneath the bottom of the box and the ribs may be replaced by pipes. The device for limiting the movement may be arranged on the bottom and the bottom may have a pipe at each side and the wings may have a tongue at each end which can abut against the pipe.
Patent GB-1390809-A (GB)
Title: Electrical networks for use at high frequencies
IPC: H01P1/213
Filed: 1972-08-05
Abstract: 1390809 Constant-resistance coupling circuits MARCONI CO Ltd 18 July 1973 [5 Aug 1972] 36665/72 Heading H1W A constant-resistance coupling circuit comprises a resonator 5 and two loops 14, 15 arranged in planes normal to the direction of propagation with both ends (1 and 2; 3 and 4) connected to the inner conductors of different co-axial terminals. The resonator is e.g. of length #/2 and may be of square or circular section. The angular separation of the loops may be other than 180 degrees, e.g. it may be 90 degrees. If the loops are correctly terminated, at the resonant frequency of the cavity, terminal 1 is isolated from terminal 3 and coupled exclusively to terminal 4. At frequencies remote from resonance, terminal 1 is increasingly coupled to terminal 2, and 3 to 4. The circuit may be used to combine a sound carrier with a vision carrier at output terminal 4. A sound carrier at the resonant frequency is applied to input 1 and a vision carrier at frequency offresonance to input 3. The resonator is tuned by conductive stubs (12, 13, Fig. 1, not shown). The curved lines indicate the rotating electric field set up in the cavity by the loops.
Patent GB-323348-A (GB)
Title: Improvements in or relating to sliding window sashes and the like
IPC: E05F11/00
Filed: 1928-12-13
Abstract: 323,348. Burton, H. Dec. 13, 1928. Burglar and like alarms. - In a window-holder provided with a spring-pressed roller 2 mounted in the frame and adapted to engage in recesses in the sash, the roller is carried by a stem 8 which has an extension 25 provided with an insulating member 27 and contact 28 which bridges contacts 24. Contacts 24 have terminals 25 for connection in an alarm circuit to give warning when the roller rides out of a recess on the window being moved.
Patent GB-326258-A (GB)
Title: Improvements in or relating to an unscreened electrical inductance or transformer unit
IPC: H01F29/02
Filed: 1928-12-13
Abstract: 326,258. Wildy, E. L., and London Electric Wire Co. & Smiths, Ltd. Dec. 13, 1928. Transformers. - An unscreened transformer unit comprises two transformers each transformer being provided with a series of tappings connected to rotatable( contacts, so that one or other of the transformers can be connected to a corresponding series of fixed contacts. As shown, plug-in coils 4, 5 have tappings connected respectively to blade spring contacts 7, 8 which co-operate with fixed contacts 15 and terminals 16. The rotatable contacts are mounted on a spindle 10 journaled in bearings 11, 12. Tho device can be housed in a casing of insulating- material.
Patent GB-1021832-A (GB)
Title: Improvements in or relating to coating machines
Inventor: KNIGHT HOWARD RICHARD JAMES
IPC: B05B12/12
Filed: 1961-10-13
Abstract: 1,021,832. Coating apparatus. CARRIER ENGINEERING CO. Ltd. Oct. 2, 1962 [Oct. 13, 1961], No. 36884/61. Heading B2B. The apparatus for coating the top surface of an article, e.g. refrigerators and car bodies, comprises a beam 24 supported above and across a conveyer 1 for the articles, by which conveyer the articles are moved in a straight line path at a constant linear speed, a spray gun 5 mounted on a carriage 6 for reciprocation lengthwise of the beam and arranged to spray coating material downwardly at a constant angle on to the top surface of article 2 as it passes under beam 24, the beam 24 being supported at its ends by means operable at the end of each stroke of the carriage 6, to move the ends of the beam 24 through an equal distance in opposite directions whereby the spray gun during successive strokes is traversed along paths 7 and 15. The beamsupporting means comprises supporting columns 16, 17 and each end of the beam is pivotally mounted on a trunnion 42, 55 fixed to a straight slide bar 43, 56 carried in bearings 44, 45, 57 and 58 fixed to the top of the columns 16, 17 so that movement of the slide bars in opposite directions swings the beam. The slide bars 43, 56 are provided with adjustable collar stops 50, 51 and 63, 64 which abut against bearings 44, 45 and 57, 58 to determine the extent of movement of the bars. The beamswinging means comprises change-over air cylinders 11, 13 having pistons 12, 14 which are respectively connected to slide bars 43, 56 and pneumatic control means, e.g. valve 72 and switches 8 and 9, connected to cylinders 11, 13 to control simultaneous movement of the pistons in opposite directions to swing the beam, the switches 8 and 9 being operated by the carriage 6. The pneumatic control means may include cam timing means connected to the means for causing the carriage to reciprocate, the cam timing means being operable so as to control the supplying of air to the cylinders so that the beam is swung immediately the carriage reaches the end of each stroke. The articles may be detected by photoelectric means. The spray gun may be an air, airless or electrostatic spray gun. The spray gun may be linked to the beam as described in Specification 965,753 and the linkage may be controlled as described in Specification 954,072.
Patent GB-1430468-A (GB)
Title: Display modules
IPC: G02F1/1345
Filed: 1973-08-03
Abstract: 1430468 Alpha-numeric displays ISE ELECTRONICS CORP 3 Aug 1973 [10 Aug 1972] 37066/73 Heading G5C [Also in Division H1] Connections from the electrodes 2 of a figure of eight display device extend via electrode drive sets 9 to terminals 8 at one edge of the insulating substrate 1 allowing the device to be plugged into a co-operating socket. The device may comprise liquid crystal or electroluminescent material; alternatively the electrodes are coated with a phosphor and excited by electrons from a cathode.
Patent GB-1275275-A (GB)
Title: Improvements in and relating to electronic trigger stages
IPC: H03K3/351
Filed: 1969-07-25
Abstract: 1275275 Relay timing circuits JUNKERS & CO GmbH 25 July 1969 [26 July 1968] 37394/69 Heading H3P A free running trigger circuit comprises a capacitor 12 connected in series with a bi-stable relay 10 and a gas discharge diode 11, a pair of paths 13, 15 and 14, 16 for charging the capacitor in respectively opposite directions and in which the charging of the capacitor in one direction causes the discharge diode to fire and operate the relay, contacts of which change over the charging path so that the capacitor charges in the reverse direction, firing the discharge tube again and restoring the first charging path. In Fig. 1, (not shown), a single diode is used and is reversed by a further contact of the relay.
Patent GB-960825-A (GB)
Title: An advancing hydraulic roof support frame assembly for face galleries in mines
IPC: E21D23/00
Filed: 1960-08-11
Abstract: 960,825. Advancing mine roof supports. GEWERKSCHAFT EISENHUTTE WESTFALIA. Aug. 11, 1960 [Oct. 9, 1959], No. 37526/63. Divided out of 960,824. Heading E1E. An advancing mine roof support frame assembly 11, 12, 13 is provided with a conveyer advancing jack 26 the plunger 22, 23 of which is urged against the conveyer under a constant pressure generated by a pump 15 whilst excess pressure resulting from passage of the coal plough is reduced by a relief valve 25. Specification 866,240 also is referred to.
Patent GB-871225-A (GB)
Title: Improvements in and relating to the production of lasts for footwear
IPC: A43D1/02
Filed: 1958-11-22
Abstract: 871,225. Making lasts. CHARLESWORTH, F. Nov 11, 1959 [Nov. 22, 1958; April 9, 1959], Nos. 37656/58 and 11932/59. Classes 17(1) and 17(3) A shoe last or tree is formed by applying a coating of material to a foot to form a mould, stripping the mould from the foot and filling it with casting material e.g. a plastic substance, and subsequently covering the cast with a number of fabric layers with a suitable bonding material to form a laminated shell which can be used with or without the cast as a last. In forming the mould the foot is supported, and in this position covered with stockinette, and plaster of paris. The foot is subsequently placed on a metal strip 15 Fig. 2 so that it will take up a natural disposition with the correct heel pitch during the setting of the mould. A metal strip 13 in the sock 14 prevents damage to the foot when the mould is slit for removal. The required shape 19, Fig. 5 of the toe of the shoe is moulded to the forepart of the cast. The cast is subsequently cut off at the ankle, smoothed, coated with cellulose cement, and sheathed with tubular stockinette. Further coatings of cement and stockinette are provided to form a tough outer shell which may be painted. The last is divided transversely, as shown in Fig. 8 and the two parts hinged together, a section being cut out and replaced by a wooden block 24. A hollow last may be made from the laminated shell by cutting it longitudinally, stripping it from the cone and subsequently joining the two parts together. A shoe tree may be formed by dividing the last into a fore-part and a heel-part which are interconnected by means of a flexible strip.