baber/WOPTO huggingface dataset:
Patent GB-850600-A (GB)
Title: Process for upgrading catalytically reformed naphthas
Inventor: JR JOHN W SCOTT
IPC: C10G59/02
Filed: 1957-04-17
Abstract: Catalytically reformed naptha is upgraded by contacting in an isomerisation-cracking zone with a catalyst comprising a hydrogenating-dehydrogenating component on an active cracking support at 600-900 DEG F. and above 600 p.s.i.g. and a space velocity of 0.5-15 vol./vol./hr. in the presence of at least 1500 S.C.F. H2/barrel of feed such that from 1,000 to 2,000 S.C.F. H2 per barrel of liquid product are absorbed and the liquid product has an overall boiling range below that of the feed.  The feed is prepared by a conventional reforming process, thus a low-nitrogen content (less than 50 p.p.m.) naphtha boiling within the range 180-550 DEG F. is treated at 850-1000 DEG F., 200-900 p.s.i.g. and 0.5-5.0 vol./vol./hr. in the presence of 2000-6000 S.C.F. H2/barrel over a molybdena-alumina (8-12% molybdena) or platinumalumina (0.1-1.0% platinum) reforming catalysts.  High nitrogen-content stocks are preferably first hydrofined over a cobalt-molybdenum-alumina (8-12% molybdena, 1-3% cobalt oxide) at 700-850 DEG F., 200-1000 p.s.i.g. and 1-5 vol./vol./hr. in the presence of 1000-5000 S.C.F. H2/barrel. Sulphur and nitrogen-containing products are then stripped before reforming. The total effluent from the reforming zone may be passed to the isomerisation-cracking zone or gases and lighter ends boiling up to between 250 and 325 DEG F. may be first removed by fractionation, and only the heavier product treated; similarly heavy products from the treatment may be further treated or recycled to the isomerisation-cracking zone.  The catalyst may be a Group Ib, IIb or VI to VIII metal other than the platinum group or the oxide or sulphide thereof or mixtures such as the oxides and sulphides of molybdenum, tungsten, chromium, iron, cobalt, nickel, copper, cadmium or zinc or the metals iron, cobalt or nickel present in amounts of 0.1-15% supported on silica-alumina such as T.C.C. beads, silica-magnesia, silica-alumina-zirconia or acid treated clays.  The temperature in the zone may be raised as the catalyst activity declines and the catalyst regenerated by conventional burning-off techniques.  The process may also be applied to the production of a specific isomer, e.g. a xylene isomer, the other undesired isomers being recycled to the isomerisation zone.
Patent GB-405652-A (GB)
Title: Improvements in and relating to three-phase variable speed commutator motors with variable torque
IPC: H02K27/12
Filed: 1932-05-02
Abstract: 405,652. Alternating - current commutator machines. SOUSEDIK, J., Vsetin, Czecho-Slovakia. May 2, 1932, No. 12654. Convention date, May 1, 1931. [Class 35.] The stator and rotor voltages of a three phase motor are adjustable simultaneously by means of an adjustable transformer either connected to the commutator winding and to an auxiliary winding on the motor stator in inductive relation with the motor primary winding or connected to the commutator winding in parallel with a winding inductively associated with a winding in series with the motor primary. As shown in Fig. 2, the autotransformer T1 is connected to the commutator winding R1 and to auxiliary windings 7 on the motor stator in inductive relation with the main windings 6 whilst as an alternative the secondary of a double wound transformer or induction regulator is connected to the commutator winding and to the secondary of a second transformer which has its primary in series with the motor primary winding. In a modification, Fig. 3, the switch contact 18 forms a displaceable neutral point for the subdivided auxiliary motor primary windings 15, 16 which have their intermediate points 12 connected to the commutator winding R3 and to the main motor windings 17, the switch and auxiliary windings being equivalent to an adjustable transformer. The Specification as open to inspection under Sect. 91 comprises also a series motor with the three brushes on the commutator also connected to intermediate points on the star-connected secondary windings of a transformer which has an adjustable neutral point and a primary winding connected to the supply. This subjectmatter does not appear in the Specification as accepted.
Patent GB-127549-A (GB)
IPC: C01C1/12
Abstract: 127,549. Soc. Industrielle de Produits Chimiques. May 27, 1918, [Convention date]. Ammonium sulphate; ammonia.-Ammonia is removed from coke-oven and like gases by treatment with solution of sodium bisulphate at 70‹ C., with the production of sodium-ammonium sulphate. A solution of the double salt containing 15 parts of sodium sulphate to 100 parts of water is cooled to about 0‹ C., when hydrated sodium sulphate separates out, and the ammonium sulphate is obtained by concentration. Specifications 19530/93, 109,814, and 114,236 are referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the subject-matter of Specifications 136,833 and 136,834. This subject-matter does not appear in the Specification as accepted.
Patent GB-316648-A (GB)
Title: Improvements in or relating to the manufacture of compounds containing active oxygen
IPC: C25B1/28
Filed: 1928-05-02
Abstract: 316,648. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). May 2, 1928. Hydrogen peroxide, perborates ; percarbonates; and like compounds, obtaining; mercury, depositing.-In the cathodic production of the above and other compounds containing active oxygen using an amalgamated cathode, the mercury on the cathode is supplemented intermittently or continuously during the process. Mercury may be caused to trickle over the cathode and run away through a syphon-like outlet. Alternatively, a small quantity of a mercury salt may be added to the electrolyte entering the cathode chamber in order to deposit mercury on the cathode.
Patent GB-219432-A (GB)
Title: Improvements in or relating to differential gears
IPC: F16H3/68
Filed: 1923-05-15
Abstract: 219,432. Turnbull, D., and Withers, A. T. May 15, 1923. Differential or balance gearing is arranged to be self-locking by including in it a skew or worm-and-wheel pair in which the meshing teeth a, b are inclined to one another at a small angle as shown in Fig. 10. Various forms of such spiral trains are described of which one is shown in Fig. 1.
Patent GB-963622-A (GB)
Title: Method of and apparatus for automatically measuring and controlling workpieces with a broken surface to be machined by precision machine tools
IPC: G01B7/06
Filed: 1962-04-04
Abstract: 963,622. Measuring length electrically. SZERSZANGEPFEJLESZTO INTEZET. April 4, 1962 [April 11, 1961], No. 12970/62. Heading G1N. The common height of a number of similar workpieces is measured by a feeler which automatically follows the broken surface levels, thus producing a pulsed output signal which is only connected to a meter when a pulse produced by double differentiation of the output signal causes a switch to close at the beginning of each height measurement. As shown (Fig. 1a) a table 5, carrying a number of workpieces 2 of the same height, is moved relative to a feeler gauge 1. When the tip of the feeler touches the first workpiece it automatically explores its shape, thereby displacing an armature 6 (Fig. 2) and producing an unbalance signal from a measuring bridge 7, which is phaserectified at 11 (Fig. lb), amplifed at the first part of valve 16, and differentiated by capacitor 17 and resistor 18 (Fig. 1c). A rectifier 19 now cuts off the negative pulses (Fig. 1d) and the resulting signal is amplified at the second part of valve 16, to be differentiated again by capacitor 21 and the winding 22 of a polarised relay 15 (Fig. le). The negative parts of this signal (Fig. 1f) cause polarised relay 15 to close contacts 12, whereby capacitor 13 is charged to the peak value of the pulsed output signal, corresponding to the height of the workpieces 2, which value is measured by a valve voltmeter 14. Constructional details are given (Figs. 3, 4 not shown) of a feeler gauge comprising two spring-loaded feelers stated to be suitable for measuring rotating workpieces with cylindrical or conical broken surfaces.
Patent GB-843707-A (GB)
Title: Improvements in and relating to laminated sheathing, especially for use on boats and ships
Inventor: NICHOLSON JOHN WATSON
IPC: B63B3/14
Filed: 1957-04-23
Abstract: 843,707. Laminates. CAMPER & NICHOLSONS Ltd. April 23, 1958 [April 23, 1957], No. 12980/57. Class 140. [Also in Groups XV and XXXIII] Synthetic resin coated laminated sheathing is made by a method wherein a template of suitable supporting material is provided at its edge and around the periphery of any cut-out portion with a rigid edge binding standing proud of a surface of the template by a distance corresponding with the desired thickness of the synthetic resin coating, if necessary any joint between the binding and template rendered fluid-tight, a sheet of reinforcing material for the synthetic resin is placed on the template surface within the upstanding edge binding, a coldcuring synthetic resin composition is filled into the remaining space within the binding, the surface of the composition is levelled by covering with a contacting tightly-stretched sheet of incompatible material and the composition is cured. As shown, a plywood template 2 is tacked to a baseboard 1, D is a cut-out portion. The edges of the template at the outside and within the cut-outs are bound by metal strips 4 secured by panel-pins. The joints are luted with " Plasticine " (Registered Trade Mark) 6. A glass-fibre sheet 7 is embedded in cold-curing polyester resin 8 which is covered by a regenerated cellulose sheet 9. Fixing bolts 10 have their heads embedded in the resin. The sheathing may be applied to surfaces or frameworks such as the decks of boats and ships by removing the incompatible cover-sheet, edge-binding, luting and base-board if any, securing it to the surface or framework by bolts, screws or adhesive, and the surface made continuous by filling gaps with cold-curing plastic composition. The joints between adjacent templates may be butted or rabbeted. A further coating of coldcuring synthetic resin may then be applied, after removal of the incompatible material, and sand sprinkled thereon.
Patent GB-558907-A (GB)
Title: Improved means for securing moulds and mould frames to vibrating tables
IPC: B28B7/00
Filed: 1942-09-15
Abstract: 558,907. Clamping moulds. CALLEBAUT, L. E. Sept. 15, 1942, No. 12998. [Class 83 (i)) [Also in Group XXIII] A toggle clamp 10 for securing a flask 23 to the table 20 of a jar-moulding machine engages with its tongue 15 a bearing plate 24 so arranged on a projection 22 of the flask that it can be packed for adjustment. The centre line 40 of the tongue 15 may be at an angle of 172 degrees to the handle 14 and the bearing plate 24 may be supported by springs or resilient material or by shims of the desired thickness and secured by bolts indicated by broken lines 41. The plate 24 may also be thicker at 24a than at 24b.
Patent GB-377746-A (GB)
Title: Improvements in and relating to zinc or zinc coated metal sheets and other articles
IPC: C23C22/24
Filed: 1931-05-04
Abstract: Zinc or zinc coated metal articles are treated to prevent the formation of white zinc rust by immersing them in a solution of chromic acid, washing, and drying.  A treatment by immersion for 5 seconds in a 0,5 per cent solution of chromic acid is described.  If the articles are stained with a film of oxide, hydroxide, or carbonate this film may first be removed by pickling, or the treatment in the chromic acid solution may be prolonged until a visible film of zinc chromate is formed.  The chromic acid bath may be placed between a galvanizing bath and a washing bath, or the article may be galvanized, washed, treated in the chromic acid bath, and again washed.
Patent GB-1415208-A (GB)
Title: Sheet feeding apparatus
IPC: B65H3/08
Filed: 1973-03-19
Abstract: 1415208 Feeding sheets HAMADA PRINTING PRESS MFG CO Ltd 19 March 1973 [14 April 1972] 13058/73 Heading B8R Sheets are separated from the top of a pile 5 and forwarded to rollers 7, 7<SP>1</SP> by suction cups 30, 30<SP>1</SP> which are arranged to be brought successively into contact with the top sheet of the pile. The suction cups are pivotally mounted at opposite ends of an elongated cam follower 12 which engages the surfaces of a cut-out portion 15 in a cam plate 14. The follower is rotatably mounted on a shaft 11 which shaft is movable in a circular path by eccentric connection to a drive shaft concentric with the centre of the cutout portion 15. An air passage 50 permits the area of the cut-out on one side of the follower 12 to be evacuated while an air passage 51 vents to atmosphere. Air passages 54 and 54<SP>1</SP> connect with the suction cups so that as the follower rotates the cups are alternately connected to vacuum and vented to atmosphere. A pair of discs 13 and slide plates 12 seal the sides of the cut-out portion. Each suction cup is connected to a cam follower roller 34, 34<SP>1</SP> which engage a stationary cam surface so that each cup is held parallel to the sheet pile during separation. A blow-pipe 40 is arranged to be brought to a position beneath each sheet as it is lifted by the suction cups to thereby assist separation. End stops 6 may be pivoted away from the pile at the moment of separation.
Patent GB-130610-A (GB)
IPC: C21C1/00
Abstract: 130,610. Basset, L. P. Jan. 29, 1918, [Convention date]. Addition to 158,523. Cast-iron and scrap processes.-Iron or steel scrap, with or without the addition of spongy iron, is melted on the hearth of a furnace by means of a flame consisting of carbon monoxide free from carbon dioxide and water vapour, and produced as described in the parent Specification. The proportions of air and carbon may be varied for obtaining either an excess of carbon for carbonizing the metal or an excess of air for the purpose of oxidizing silicon, manganese, phosphorus, &c. Any required additions to the metal may be made after the melting is completed. Reference has been directed by the Comptroller to Specification 112,275.
Patent GB-109620-A (GB)
Title: An Improved Combination of Devices for Teaching Infants.
Inventor: BIBRA CHARLES BENEDICT DE
IPC: G09B1/06
Filed: 1917-09-12
Abstract: 109,620. Bibra, C. B. de, (trading as Educational Supply Association). Sept 12, 1916, [Convention date]. Word-building and like cards, blocks, and apparatus.-A device for use by a child to form a variety of constructional designs comprises a series of cards A provided with various numbers and arrangements of perforations B, through which lace or ribbons C, Figs. 1 and 4, are adapted to be threaded, or into which are adapted to be inserted sticks E for receiving blocks F, G, Figs. 4 and 9. Coloured beads D, Fig. 4, may be threaded on the laces to illustrate consecutive numbers, or to form an abacus (not shown). The laces may be wound round the cards, Fig. 1, in which case the edges of the cards are preferably indented. The lengths of the different sticks E and the sizes of the different sets of cubical blocks F and cylindrical blocks G, Fig. 4, bear a definite relation to one another, Fig. 9 shows the blocks and sticks employed to form the representation of a building, the blocks being provided with longitudinal grooves I to receive the edges of pieces of cardboard J. A device for drawing circles, Fig. 7, comprises a piece of cardboard H which is attached to a card A by means of a paper fastener and is provided with a series of holes H<1> adapted to receive a pencil. Flat triangular and square blocks also may be used with the perforated cards A for parquetry work.
Patent GB-109122-A (GB)
Title: Improvements in or relating to Electric Battery Cells.
Inventor: KELWAY-BAMBER CHARLES
IPC: H01M50/147
Filed: 1916-09-15
Abstract: 109,122. Bamber, C. Kelway-. Sept. 15, 1916. Cells.-A cell of the LeclanchÚ type is provided with a cover 1 which is pressed tightly to the cell by the weight of the porous pot 3 which is suspended from the cover, the cover being formed with an opening through which passes a head 5 formed on the porous pot. The head 5 is formed with a groove to receive a rubber ring 6 which rests on the top of the battery cover and so supports the porous pot. A rubber ring 11 surrounds a reduced portion 10 of the cover and forms a tight joint between the cover and the cell. A second opening in the cover receives a split cork or plug 7 through which the terminal wire 9 of the zinc element 4 passes.
Patent GB-131998-A (GB)
IPC: C25C1/16
Abstract: 131,998. Electrolytic Zinc Co. of Australasia Proprietary, Ltd. Aug. 17, 1917, [Convention date]. Zinc salts.-A zinc electrolyte, which may be obtained by leaching ores with sulphuric acid, is freed from cobalt by addition of a manganese compound and precipitation by lead peroxide. The manganese must also be completely precipitated simultaneously. Manganese sulphate may, for example, be added to the solution, or reduced manganese peroxide added to the zinc ore during lixiviation. Precipitated manganese dioxide may be used. Calcium plumbate and acid may be substituted for lead peroxide. The zinc solution is agitated with the peroxide for about an hour. Heating is sometimes advantageous. Before and after the treatment, the solution is agitafed with limestone. The precipitate of lead sulphate, with manganese and cobalt, may be smelted, or may be treated with sulphurous acid, with or without ferrous sulphate, to dissolve out the manganese and cobalt, and the residue mixed with magnesia and treated with chlorine, to recover lead peroxide, which is freed from chlorine compounds before use. Reference has been directed by the Comptroller to Specification 115,846.
Patent GB-133365-A (GB)
IPC: H04R1/38
Abstract: 133,365. Pridham, E. S., and Jensen, P. L. June 26, 1918. Microphones; head sets.-Telephone transmitters for use on aeroplanes and in other noisy situations have the diaphragm exposed on both sides to the undesirable noise vibrations, whereas the speech vibrations act only on one side. As shown in Fig. 2, the diaphragm 11 is mounted in a ring 10 from which project two posts 16 adjustably connected to face-pads 12 made of deformable metal covered with fur &c. and held to the head by a strap. The microphone 1 is attached at one side to the diaphragm, and its stem 2 is adjustably secured by a screw 4 to a bridgepiece 5 supported by sleeves 8 and screws 9 on the ring 10. One lead is connected to the bridge 5 by the terminal 6, and the other is attached to an insulated terminal 7<a> electrically connected to the movable electrode of the microphone. Both sides of the diaphragm are open to the noise vibrations, and by adjusting the position of the facepads 12 and listening in with a receiver, the effect of such vibrations may be reduced to a minimum. In a modified transmitter, Fig. 7, the face-pads are replaced by a ring 17 adjustably secured to screw posts 18 and forming a guard for the user's lips.
Patent GB-150068-A (GB)
Title: Improvements in or relating to drying processes and apparatus therefor
IPC: F26B17/28
Filed: 1919-05-27
Abstract: 150,068. Boberg, T., and Techno- Chemical Laboratories, Ltd. May 27, 1919. Film evaporators; progressive evaporators; vapours, using for effecting further evaporation.-In evaporating liquids to dryness by processes such as those described in Specifications 12462/11, 22670/11, and 149,055, in which the vapour generated is utilized, after compression, in heating the substance treated, the evaporation takes place in two stages, the liquid being first spread on a heated surface from which, when partly dried, it is removed by scrapers or otherwise, being then spread on to another surface. Fig. 2 shows an apparatus suitable for treating substances which at the end of the first stage are in such a condition that they will not adhere of themselves to the second surface. A rotating drum d dips into a trough a to which the liquid is supplied. The process is started by introducing steam from an external source, and the vapour generated is compressed by a pump g<1> and passed into the interior of the drum d to heat it. The partly-dried material is removed from the surface of the drum d by a scraper i<1> and delivered to a conveyer l<1>, which passes on to a wire net or like band x passing over a drum p<1> heated in similar fashion to the drum d. The band x holds the material against the surface of the drum p' until it is dried, when it is removed by a scraper r<1> and conveyer z. In a modification, the second drum is replaced by a series of hollow floors over which the material is moved by scrapers.
Patent GB-143269-A (GB)
Title: Improvements in or relating to pressure controlling valves for gaseous fluids
IPC: G05D16/12
Filed: 1920-05-15
Abstract: 143,269. Jewell, W. M. May 15, 1919, [Convention date]. Chlorine, obtaining; pressure different from atmospheric.-A pressure-regulating device for chlorine gas passing from electrolytic producing- cells, comprises two communicating chambers 7, 9 containing a liquid, such as sulphuric acid 8 protected by an oil film 8<a>, the chamber 9 having inlet and discharge connexions 4, 6 and a float valve 11, 16 for controlling the discharge opening 15. By adjusting the liquid level in the chamber 7 the device can be adjusted for pressures above, below, or at atmospheric pressure. The valve shown comprises a ball valve 16 carried by a stem 17 in the stopper 18 of the float 11, a similar stem being guided in the discharge pipe 14. The two chambers 7, 9 may be arranged one within the other, as shown, or they may be. separately disposed with a fluid connexion between them.
Patent GB-133925-A (GB)
IPC: F16G7/00
Abstract: 133,925. Bo·vy, J. J. B. J. June 28, 1919. Belt fastenings consist of two pairs of pincers 1, 1<1> gripping the belt ends and connected by a link 10. Each pair of pincers comprises jaws 2 connected by a pivot 4 and having arms 3 pressed together by a bolt 7 and nut 9. The link 10 connects the bolts 7. The jaws 2 grip the belt with knife-edges or teeth 5. In a modification, one jaw interpenetrates the other to obviate bending of the pivot pin. In another modification, the jaws are made of stamped metal, bent, and the connecting-links are expanded to be in line with the belt flanks.