baber/WOPTO huggingface dataset:
Patent GB-1224252-A (GB)
Title: Polymerization of isobutene and production of catalysts suitable therefor
Inventor: ADDY LESLIE ERNEST
IPC: C08F4/58
Filed: 1968-05-31
Abstract: 1,224,252. Polymerizing isobutene. B.P. CHEMICALS (U.K.) Ltd. 15 May, 1969 [31 May, 1968], No. 59898/68. Heading C3P. [Also in Division B1] Isobutene is polymerized in liquid phase by contact with a catalyst comprising SiO 2  having Al-Cl-moieties bound through Al-O-bonds to the surface of the SiO 2 . Examples describe the polymerization of mixed C 4  hydrocarbon feedstocks consisting primarily of isobutene in the presence of a modified SiO 2  catalyst. Viscosity of polymer products is disclosed.
Patent GB-467391-A (GB)
Title: Improvements in and relating to means for supplying air to furnaces
IPC: F23L1/02
Filed: 1936-09-25
Abstract: 467,391. Regulating air supply to furnaces. SCHMIDT'SCHE HEISSDAMPF-GES. Sept. 25, 1936, No. 26112. Convention date, Sept. 27, 1935. [Class 51 (i)] In a furnace with a rotary or stationary circular grate in which the solid fuel moves during combustion from the point of introduction to a zone where combustion is complete, the space beneath the grate is divided by vertical partitions into stationary sector-shape air chambers connected in parallel to a hollow space surrounding the furnace for preheating the air for combustion, such air being led to the air chambers through openings controlled by dampers. As shown in Fig. 1, the space beneath the rotary grate 8 is divided into sector-shaped chambers 11 supplied with air from the jacket 14 through openings 15 controlled by dampers 16. Fig. 4 shows a grate formed of upper and lower sections 18, 17, the space below each section being divided by vertical radial partitions into sector-shape compartments 22, 21 to which air is supplied from the jacket 14 through openings 24, 23 controlled by dampers 26, 25. Fig. 7 shows a modification in which the space beneath the rotary grate 8 is divided into stationary sector-shape chambers 29 by radial partitions and supplied with air from the jacket 14 and from the atmosphere through openings 15, 34 controlled by dampers 16, 33. The air passes from the sector-shape chambers through openings 32 formed in a horizontal plate 31 to annular chambers 27 formed by partitions 28. Vertical radial partitions are also provided in the chambers 27 extending over the plate 31 and serve to move ashes falling through the grate to the chambers 29 from which they are forced by air or steam from a pipe 36 into the ash delivery 37. In a further modification, six sector-shape stationary chambers are arranged beneath five sector-shape chambers rotating with the grate and separated therefrom by a horizontal partition with radial apertures.
Patent GB-1423171-A (GB)
Title: Manufacture of surface glass
IPC: C03B18/14
Filed: 1972-06-05
Abstract: 1423171 Surface-modified glass PILKING- TON BROS Ltd 4 June 1973 [5 June 1972] 26183/72 Heading C1M A metallic dispersion of predetermined intensity is developed in a surface layer of glass (e.g. glass ribbon 29) by introducing a predetermined concentration of metal ions into the surface, and then contacting the surface with a molten metal body 39 which acts to reduce the ions to the corresponding metal, to give the metallic dispersion. Preferably ribbon 29 is treated while supported on a molten tin bath 10, at a temperature of 600-800 C. First molten body 30, which clings to bar 31, acts as a source of metal ions when a current passes between the molten body 30 and the electrode 34 through the glass 29 and bath 10, the first body 30 acting as an anode. Molten body 30 may be molten Pb, or a molten alloy of Cu/Pb, Cu/Bi, Ni/Bi, Sn/Ni or Pb/Ni, for example. The glass ribbon 29 subsequently contacts a molten body 39 of similar composition, but connected to act as a cathode, so that the ions introduced at body 30 are reduced to the metal, giving a metal-containing surface layer of thickness up to 0À1 microns, for example. The electric flux density at 39 (cathodic) is preferably less than the anodic flux density at 30, e.g. 10-50% of the anodic value. Molten metal bodies 30 and 39 cling to metal bars 31 and 38, which may be of Cu, Ni or Ru. An atmosphere of N 2 , or of 90% (by volume) N 2  and 10% (by volume) H 2  may be maintained over the bath 10 and ribbon 29. The glass having a metallic dispersion in its surface shows improved heat and light absorption and reflection properties.
Patent GB-947966-A (GB)
Title: Tunnel diode three state memory device
IPC: H03K3/315
Filed: 1962-07-09
Abstract: 947,966. Tunnel diode tristable circuits; keying carrier frequencies. UNITED STATES ATOMIC ENERGY COMMISSION. July 9, 1962 [Sept. 18, 1961], No. 26204/62. Headings H3T and H4L. [Also in Division G4] A tunnel diode has in addition to the two normal D.C. stable operating conditions a third D.C. stable condition in which the diode oscillates. Tunnel diode 10A is connected in series with a bias current source 18A so that it may be triggered into either of two stable states on the positive resistance regions of its characteristic. In addition it is connected to an inductor 12A and a capacitor 14A to form a resonant circuit so that it can also be triggered to an intermediate state, on the negative resistance portion of its characteristic, at which the circuit oscillates and at which a stable intermediate D.C. voltage output is obtainable from the junction of resistors 42 and 18A. The circuit may be in cascade with similar circuits by transfer circuits comprising a buffer stage 46 and a gating stage 48. The buffer stage may, however, be omitted (Fig. 5, not shown).
Patent GB-1331368-A (GB)
Title: Apparatus for and method of fabricating highly resilient polyvinyl chloride layers
IPC: D06N3/06
Filed: 1971-04-19
Abstract: 1331368 Coating webs with plastic ROYALTY DESIGNS OF FLORIDA Inc 19 April 1971 [3 Aug 1970] 26225/71 Heading D1L [Also in Division B2] A liquid mixture of resin and plasticizer is pumped by pump 6 from reservoir 4, into a heated zone where it is first gelled and then remelted, through which it is conveyed in channel 8 and from thence, through valve U to outlet 10 where it is run on to the web 2. The flow path 8 is sufficiently narrow to prevent static, high temperature conditions forming. The pool of molten plastic is confined to a limited area by doctor blades 9 and 9', the former serving to determine the thickness of the coating on the web leaving the application area. The laminate is cooled during passage over the rest of coating table 5 and the plastic so cured. In a preferred embodiment the plastic is polyvinyl chloride, admixed with a phthalate plastioizer in the proportion of at least 4 parts by weight of plasticizer to 1 of resin. A phosphate fireproofing agent may replace up to 60% by weight of the plasticizer.
Patent GB-386365-A (GB)
Title: Improvements in dyeing with vat dyestuffs
IPC: D06P5/12
Filed: 1931-09-19
Abstract: Printing with vat dyes.  A composition containing a vat dye, an alkali and a hydrosulphite is applied to selected areas of a fabric to resist a composition subsequently applied containing a vat dye and a ferrous reducing agent.  Alternatively, a composition containing a vat dye, a ferrous reducing agent and an excess of free acid, e.g. lactic or tartaric acid, is applied to selected areas to resist a composition subsequently applied containing a vat dye, an alkali and a hydrosulphite.  In each case the second composition may be applied to selected areas or otherwise.  Advantageously a membrane may be formed between the first and second compositions, e.g. by adding manganous chloride to the acid-containing composition or by using a thickening readily dispersed by alkali, e.g. gum senegal or locust bean thickening.  The following examples are specified : (1) A mercerized cotton fabric is printed with a mixture containing Indanthrene golden yellow RK, British gum, caustic soda solution and sodium formaldehyde hydrosulphite, aged for 3 mins., padded with a preparation containing Alizanthrene blue RS, locust bean thickening, ferrous sulphate, lactic acid, stannous chloride and manganous chloride, dried, aged for 3 mins. in formic acid vapour, treated for \ba1/2\be min. in a solution at 190 DEG  F. containing manganese dioxide and caustic soda, washed in hot water, soured, rinsed and soaped.  (2) A mercerized cotton fabric is printed with a mixture containing Indanthrene, golden yellow RK, British gum, caustic soda solution, sodium formaldehyde-hydrosulphite and sodium chlorate, aged for 3 mins. and then aged for a further 3 mins. in formic acid vapour, padded as in (1), dried, treated in a solution at 190 DEG  F. containing manganese dioxide and caustic soda, washed in hot water, soured, rinsed and soaped.  (3) A cotton fabric is printed with a mixture containing Indanthrene red FBB, alcohol, British gum, caustic soda solution and rongalite C, aged, cover printed with an Alizanthrene blue RS preparation made up as in (1) and further treated as in (1) to obtain a fast blue cover on a fast red resist. (4) A cotton fabric is printed with a mixture containing Caledon blue R, starch tragacanth thickening, ferrous sulphate, lactic acid, stannous chloride and manganous chloride, dried and padded in a liquor containing Indanthrene golden yellow RK, thin British gum, potassium carbonate and sodium formaldehyde sulphoxylate, aged, developed in caustic soda solution at 200 DEG  F., washed in cold dilute caustic soda, treated with sulphuric acid, oxidized with sodium perborate and washed in soap and soda.
Patent GB-172426-A (GB)
Title: Improvements in emergency bumpers or guards for vehicles
IPC: B60R21/34
Filed: 1920-09-13
Abstract: 172,426. Stott, F. R. L., and Shierk, E. E. Sept. 13, 1920. Wheel-guards, obstruction-removers, and safety appliances.-In a drop-down front guard for a vehicle, of the flexible apron type, the apron is mounted upon a roller or rollers enclosed on three sides by a transverse buffing-bar, the fourth and lower side of the buffing-bar being normally closed by a bar on the free edge of the apron or aprons and means connected to the bar for extending the apron or aprons to the ground. A transverse buffing-bar 2 of channel section, not shown in Fig. 5, has its open end downwardly directed and its extremities bent rearwardly, and houses a spring-mounted roller 4<1>, 4, 4<1> in three parts which are connected together by knuckle joints 5 so that the rollers conform to the shape of the buffing-bar. An apron 6, in three parts, is connected to these rollers and has its bottom end connected to a bar 8 which forms in the normal position the closure to the buffing-bar 2. The bar 8 is connected at 8<1> to a connecting-rod 9 operated by a piston-rod 1. A swing link 23 is pivoted to the cylinder extension 14 at 24 and the connecting-rod 9 at 25, a stop 21 on the connecting-rod 9 limiting the backward movement of the piston 15. On admission of compressed air to the cylinder 14, the plunger 15 moves forward against the pressure of the spring 19, and the apron is let down, as shown in dotted lines, Fig. 5. On exhausting the air, the spring draws the links back to their initial position. A coil or tape 12 is attached to the roller 4 and bar 8 to strengthen the apron, and the bottom edge of the guard is protected by a rubber strip 10. The tension of the apron is adjusted by means of a key 11 operating a spring 7.
Patent GB-155954-A (GB)
Title: Improvements in or relating to turbo-electric driving arrangements
IPC: B63H23/24
Filed: 1919-10-27
Abstract: 155,954. Brush Electrical Engineering Co., Ltd., and Sutton, C. C. Oct. 27, 1919. Dynamos and motors combined for transmitting power.- In a turbo-electric propulsion system particularly applicable to ships, a number of driving sets are used, each set consisting of a double rotation turbine b, c driving two alternators A, B, which supply two motors C, D, geared together or on the same propeller shaft. The motors C, D have different pole numbers and at top speed are supplied independently from the alternators; if these have the same pole number, then their speeds are set to supply currents of different frequencies to suit the two motors. If the alternators are to run at the same speed, then their pole numbers are different. For low speed the two alternators are run in parallel at speeds determined by their pole numbers and supply only one of the motors belonging to the set. If the power generated by one turbo-alternator set is sufficient it may supply two motors belonging to independent sets at low speeds, one of the generator sets being shut down.
Patent GB-427277-A (GB)
Title: Improvements in machine guns
IPC: F41A9/34
Filed: 1934-09-14
Abstract: 427,277. Machine guns. SOC. ANON. DES ANCIENS ETABLISSEMENTS HOTCHKISS & CIE, 60, Quai Michelet, Levallois- Perret, Seine, France. Sept. 14, 1934, No. 26428. Convention date, March 14. [Class 92 (ii)] A spare box-magazine 7<a> is supported on an open trough-like track 1 arranged behind the loading opening 6 the magazine being movable to a position above the opening when it drops into the full-line position shown. The track is provided with rollers 2 for the base of the magazine, which latter is provided with side rollers 10 which run on rails 8 on the trough and rails 9 on the gun 5. An incline 13 forces the front of the magazine down, and the rear end of the magazine then rocks about the rollers 10 until it reaches the position shown where it is fastened ready for use. In the example shown, provision is made for the recoil of the gun and the trough can be swung laterally on a hinge 14 to permit removal of the gun from its cradle 4.
Patent GB-925940-A (GB)
Title: Improvements in and relating to the continuous casting of preferably high melting point metals
IPC: F27B5/04
Filed: 1960-07-29
Abstract: 925,940. Storing molten metals. F. BILABEL. July 29, 1960, No. 26440/60. Class 51 (2). [Also in Group XXII] A continuous casting apparatus comprises a water-cooled mould e connected to a molten metal container a with heating means h and a double wall, the wall space being either evacuated or supplied with a cooling medium at will. The melt is adjusted to the desired pouring temperature by either cooling by supplying coolant, e.g. blown air, to the wall space or heating by partially evacuating said space and switching on the radiant heater h which comprises graphite rods. The melt is then maintained at the desired temperature by evacuating the wall space. The interior of the container may also be evacuated for degassing the metal. While degassing, cooling or heating the melt may be agitated as by induction. In a particular example steel is held and cast at 1550‹ C.
Patent GB-1006215-A (GB)
Title: Improvements in or relating to radio and television tuners
Inventor: KNOX ROBERT
IPC: H03J5/12
Filed: 1961-07-19
Abstract: 1,006,215. Inductors. PLESSEY CO. Ltd. Oct. 17, 1962 [July 19, 1961 (2); July 20, 1961], Nos. 26152/61, 26153/61 and 26414/61. Heading H1T. [Also in Division H3] A variable inductance for a radio receiver tuner comprises a number of sets of coils such as C, F, I, L, each set being associated with one waveband, tuned by aluminium slugs within the coil former which are moved together by a single control rod. The coils may comprise two spaced coils connected in parallel to give finer and more linear tuning. The control rod is moved by an arm 31 against a spring, and the arm is moved by one of a number of push buttons 18 ... 21 so arranged that when one is pressed it remains in, but the previously pressed button springs out. The push button shafts each carry a nut, which cannot rotate. to press the arm, and fine tuning is effected by turning the buttons.
Patent GB-845402-A (GB)
Title: Improvements relating to apparatus for measuring the width of metal strip
Inventor: HETHERINGTON MATTHEW JAMES
IPC: G01B7/04
Filed: 1955-09-16
Abstract: 845,402. Photo-electric control of gauging systems. STEWARTS & LLOYDS Ltd. Sept. 17, 1956 [Sept. 16, 1955], No. 26528/55. Class 40(3). [Also in Group XXXVIII] In a system for gauging the width of a travelling strip (see Group XXXVIII), the feeler arms of the gauge are projected towards and withdrawn from the edges of the strip at a predetermined distance from its ends under photoelectric control. Photo-cells 50 suitably spaced and sighted on the strip actuate both relays 51 when both acted on by the strip and so operate the electro-magnetically controlled valve 52 of a pneumatic actuator (not shown) for projecting the gauge arms. When the trailing edge of the strip leaves one of the tubes the corresponding relay 51 falls and the valve 52 assumes its other condition in which the gauge arms are withdrawn.
Patent GB-227915-A (GB)
Title: Improvements in or relating to carburetting devices
IPC: F02M1/00
Filed: 1923-10-24
Abstract: 227,915. Spiller, H. W., and Smith & Sons (Motor Accessories), Ltd., S. Oct. 24,1923. Spray carburettors.-Nozzles 12, fed through a fuel conduit 11, discharge into separate air ducts 18 - - 21 formed in a fixed block 22, the outlets 24 - - 27 of the ducts being close together and facing the intake end of the main delivery conduit 28 controlled by a throttle valve 15. The outlets are at different levels and are uncovered in succession bv a suction-actuated sleeve 29 sliding over the block. Additional air may be admitted to the ducts through passages 16 controlled by a ring 17. A nozzle 13 supplies a by-pass channel 14. Some of the ducts mav have additional delivery mouths as at 31, 32, Fig. 5.
Patent GB-849433-A (GB)
Title: Hair washing preparations
IPC: A61K8/891
Filed: 1957-08-22
Abstract: A shampoo composition consists of (a) one or more natural or synthetic detergents, such as ammonium or sodium lauryl sulphate, mono-, di- or tri-ethanolamine lauryl sulphate, a sugar based detergent, or an alkali metal or ammonium soap, and (b) a liquid silicone in an amount up to 30% by weight, preferably 0.05-15%, especially a silicone having a viscosity of 1-2,500,000 cs. and particularly one having a viscosity of 300 cs.  Generally up to 75% by weight of the total composition is water, and perfume and lanolin may also be present.  Specification 805,768 is referred to.
Patent GB-990858-A (GB)
Title: 2,4-diamino-1,3-diazaphenothiazines
IPC: C07D513/04
Filed: 1960-06-23
Abstract: The invention comprises 2,4-diamino-1,3-diazaphenthiazine and the corresponding compounds in which the benzene ring is substituted with one or more halogen atoms or C1-4 alkyl or alkoxy groups, and acid-addition salts thereof; and their preparation by warming 2,4-diamino - 6 - (2 - aminophenylthio) - 5 - bromopyrimidine or a suitably substituted derivative thereof (which may be produced in situ or separately from a mixture of a 2,4-diamino-5-halogeno - 6 - chloropyridimine and 2 - aminobenzene-thiol or a suitably substituted derivative thereof) with acid.  Examples are given.  2,4 - Diamino - 5 - bromo - 6 - chloro - pyrimidine is prepared by bromination of 2,4-diamino-6 - chloro - pyrimidine. Chlorination of the same starting material gives 2,4-diamino-5,6-dichloro-pyrimidine. Specification 975,323 also is referred to.
Patent GB-830375-A (GB)
Title: Improvements in or relating to implements for laterally displacing hay or the like material lying on the ground
IPC: C25B3/25
Filed: 1956-02-07
Abstract: The subject-matter of the present Specification is contained in Specification 830,373, but the claims differ.
Patent GB-652508-A (GB)
Title: Method for treating wood surfaces
IPC: B24B7/12
Filed: 1948-10-14
Abstract: 652,508. Wire-brushing wood to accentuate grain; rotary brushes. DEHN, S. G. (Davidson Plywood & Lumber Co.). Oct. 14, 1948, No. 26781. [Classes 19 and 60] A method of treating a flat wood surface, such as a panel surface and the like, to produce a raised grain thereon in sharp relief includes the step of scouring said surface with a plurality of wire brushes impinging on said surface at a variety of angles each being oblique to the grain of said surface. Slabs or panels 13, Fig. 2, of wood or plywood are carried by a conveyer 18 under banks of vertically adjustable brushes 19, rotated by individual motors, having their axes of rotation inclined to the direction of travel of the conveyer; succeeding banks are oppositely inclined. In each bank, the brushes on one side of the centre line of the conveyer rotate oppositely from those on the other side of the centre line; the brushes in the second bank rotate oppositely to the corresponding brushes in the first bank, the brushes in the third bank rotate in the same direction as the corresponding brushes in the second bank, the brushes in the fourth bank rotate oppositely to the corresponding brushes in the third bank, the brushes in the fifth bank rotate in the same direction as the corresponding brushes in the fourth bank, and the brushes in the sixth bank rotate oppositely to the corresponding brushes in the fifth bank. The first four banks of brushes effect the scouring out of the soft fibres; the brushes have wire bristles of about seventy-five ten-thousandths of an inch thickness and which are crinkled, Fig. 3; in operation, the brushes are rotated at high speed e.g. 2,500 R.P.M. and centrifugal force causes the bristles to elongate by straightening their crinkles, Fig. 4, thus exerting the desired pressure on the wood surface. The last two banks of brushes effect polishing of the hard fibres; the brushes may be set closer to the wood surface than the preceding banks, or may have longer bristles or may be rotated at higher speeds so as to accentuate the elongation of the crinkled bristles; the desired effect is to cause the bristles to flex under the pressure of contact with the wood surface to a degree at which they drag across the wood surface with a sweeping rather than a scouring action, making contact with the sides of their tips rather than with the points of their tips, thus polishing the hard fibres. Specification 652,507 is referred to.
Patent GB-252976-A (GB)
Title: Improvements in or relating to laundry or like washing machines
IPC: D06F37/36
Filed: 1925-10-26
Abstract: 252,976. Jowitt, S. G. Oct. 26, 1925. Washing-machines with rotary receptacles. - The receptacle 2 is reciprocated through about 540‹ by a crank 12 and connecting rod 14 oscillating a bifurcated member 16 through about 120‹. The member 16 is keyed to the boss 17 of a friction disc 18 loose upon a stub shaft 38, a second friction disc 24 being splined to the boss 17. The friction discs are spring pressed into engagement with a gear wheel 22 meshing with a pinion 29 on the receptacle shaft 3, so that should the machine jam the drive is disconnected.