baber/WOPTO huggingface dataset:
Patent GB-1028497-A (GB)
Title: Hydrocarbon separation process for improvement of heat stability
IPC: C07C7/13
Filed: 1963-08-14
Abstract: A process for separating non-hydrocarbon impurities from hydrocarbons and/or separating saturated hydrocarbons from olefines, and/or aromatics from saturated hydrocarbons and/or olefines, thereby improving the heat stability of the hydrocarbons, comprises contacting a feed of impure hydrocarbon with a zeolitic adsorbent until Wt feed processed/Wt adsorbent is 0.01 to 25, and then desorbing the adsorbed components with a gaseous desorbing agent; for example sulphur dioxide or R1R2R3N, where R1, R2, R3 are H or alkyl groups of 1-5 carbon atoms.  The adsorption may be effected at 70-700 DEG  F. and up to 300 p.s.i.a. such that the feed is substantially liquid, or at 400-800 DEG  F. and up to 100 p.s.i.a. such that the feed is substantially vaporous.  Suitable adsorbents are type X sieves, either with monovalent cations such as 13X, or with divalent cations such as 10X.ALSO:A process for separating non-hydrocarbon impurities from hydrocarbons and/or separating saturated hydrocarbons from olefines, and/or aromatics from saturated hydrocarbons and/or olefins, thereby improving the heat stability of the hydrocarbons, comprises contacting a feed of impure hydrocarbon with a zeolitic adsorbent until Wt feed processed/Wt adsorbent is 0.01 to 25, 2nd then desorbing the adsorbed components with a gaseous desorbing agent; for example sulphur dioxide or R1R2R3N, where R1, R2, R3 are H or alkyl groups of 1-5 carbon atoms.  The adsorption may be effected at 400-800 DEG F. and up to 100 psia such that the feed is substantially vaporous.  Suitable adsorbents are type X sieves, either with monovalent cations such as 13X, or with divalent cations such as 10X.
Patent GB-1195397-A (GB)
Title: Wire Overhead
IPC: B29D30/46
Filed: 1967-07-12
Abstract: 1,195,397. Splicing tape. B. F. GOODRICH CO. 12 July, 1967 [13 July, 1966], No. 32148/67. Heading B5K. [Also in Divisions B3 and D1] A bias cut wire fabric is made by feeding a length of wire-elastomer tape past a cutter, cutting the length of tape at a bias angle, splicing the cut length of tape to a previously cut length whilst the first mentioned length is substantially in the position in which it was cut, and moving the spliced lengths in a direction parallel to the wire of cutting so that the unspliced edge of the last cut length of tape is in position to be spliced to the next cut length. As shown the wire tape 17 is guided in U- shaped channels 33 and 34 on feed 22, which can swing angularly with respect to the cutter. A clamp 39 is reciprocated along the feed so as to intermittently feed the tape through the open cutter. A second clamp (68), operated by cylinder 70, is mounted adjacent the cutter and is co-operative therewith. The cutter consists of blade (85) pivoted at (86) and actuated by cylinder 75 pushing on the tape covers (81, 82). The latter are connected to the blade (85) and rotated it clockwise as viewed in Fig. 3, not shown. The cut tape sections pass to the recessed splicing table 89. A magnetizing means holds the tape on the table. A splice plate 92, recessed at its forward portion 93, then moves forward to splice the cut section to the fabric 103 being formed. Rollers (100) and 101 feed the fabric 103 forward intermittently. The feed to and from the cutters is controlled by electric eye 104. The fabric 103 passes to wind-up device 103. The wire tape 17 itself is formed by drawing wires from spools (11) passing them over a grooved sheave (12), with or without a comb, passing them through a cleansing and drying device (14) and extruding rubber or other elastomeric material on to the wire at (16), see Fig. la, not shown. The formed tape then passes to a festooner 18 to store the tape before its intermittant withdrawal to the cutter.
Patent GB-817671-A (GB)
Title: Improvements in and relating to electrical control systems
Inventor: VAUGHAN ALFRED JOHN
IPC: F41G7/36
Filed: 1954-11-05
Abstract: 817,671. Automatic steering control systems. ENGLISH ELECTRIC CO. Ltd. Nov. 4, 1955 [Nov. 5, 1954], No. 32149/54. Class 38 (4). [Also in Group XL (c)] In a guided missile control system, the actual and required positions of the missile are compared and the resultant signal used to bring the missile to the required position. The actual position is determined by a doubly integrating accelerometer 41, Fig. 6, and the required position is derived from a signal storage device 40, in the missile. The outputs from both the accelerometer and the storage device are electrical pulse trains, and the number of pulses produced in a period of time represent a distance travelled in that time. The two trains are compared in a pulse discriminator 43, and the output signal is developed at either one of two lines 45, 46 according to which of the input trains is the more rapid. Each line is associated with a ratchet release mechanism 47 which together move a cam-operated variable resistance 49, 50 controlling the missile positioning device 52. The pulse discriminator has no output when the two input trains apply the same number of pulses to the discriminator in a specified period. In one embodiment, Fig. 2, the two pulse trains are applied, at 12 and 13, respectively, to the switches 10, 11. These are normally at position a but on receiving a pulse each switch is moved to position b for the duration of the pulse. If the moving contacts of 10 and 11 are connected to the battery 15 then output pulses will appear at 18, 19. However, the moving contacts of 10, 11 are connected to 15 through the arm of switch 17 and this is moved to contacts c or d accordingly as 17 is pulsed from 12 or 13. Hence, a pulse from 12 moves 17 to c and 10 to b and similarly a pulse from 13 moves 17 to d and 11 to b. Thus if alternate pulses are received at 12, 13 to above sequence is effected continually and no signals appear at 18, 19 as the action of 17 lags the movements of 10 and 11 due to the short period delay line 20. This condition corresponds to the required and actual missile positions being the same. Should the two positions not correspond, the pulses will appear at 12, 13 in groups and consecutive pulses at 12 or 13 will move 17 to the corresponding position and then pulses will appear at 18 or 19 due to the movements of 10 or 11 under the action of its controlling pulses. Should pulses at 12, 13 be rear coincidence, the system does not operate accurately and in a further embodiment, Fig. 4 (not shown), rear coincident pulses are eliminated. A coincidence detector closes a gate preceding each switch 10. 11 when pulses in the trains at 12 and 13 are at rear coincidence. Specification 817,672 is referred to.
Patent GB-832574-A (GB)
Title: Mechanical last exchangers
IPC: B29C35/00
Filed: 1957-10-15
Abstract: 832,574. Moulding footwear. BRITISH BATA SHOE CO. Ltd. Oct. 15, 1957 [Oct. 19, 1956], No. 32229/57. Class 87(2). In order to transport lasts (mechanically) into and out of adjacently-situated. moulds, lasttransporting elements having individual power drives are provided of which some are movable independently of others, some are adapted to move certain of the lasts into and out of the moulds, and one is adapted to move all the lasts laterally in front of the moulds. As shown in, Figs. 2 and 3, two pairs of lasts 8a, 9a and 10b, 11b are situated on a work table 12 provided with tracks 14 for movement of the lasts into and out of adjacent moulds, and tracks 17 and last carrier 18 for movement of the lasts from side to side. Referring to Fig. 2, last 9a is attached to base 19 from which project lugs 21, 22 into slots 23, 24 in a last-carrying block 25. This block is driven along the guide table 26 in track 14 by the piston 33 to which it is connected via piston rod 32. When one pair of lasts has returned from the moulds all the lasts are moved laterally on carrier 18, Fig. 3, which has cross-shaped members 36, 37 and 38 and T-shaped members 39, 40 abutting against sides of the last bases 19 and the top plate 35. Lateral movement is provided by member 37 being connected to piston 45 via arm 41, this movement being sufficient to bring the other pair of lasts into position ready for movement into and out of the moulds.
Patent GB-264781-A (GB)
Title: Improvements in typewriting machines
IPC: B41J11/14
Filed: 1925-10-19
Abstract: 264,781. Block, G. Oct. 19, 1925. Paper-carriages; carriage-shift mechanism; shift-key actions.-In paper-carriages of the kind that rack about the rear supporting-rail when the shift-keys are operated, the front supporting-rail runs on rollers which are retractable so that the paper-carriage can be raised to an abnormal position and be then removed from the machine. In the arrangement shown in Figs. 3 and 4, the front rail 36 of the paper-carriage 11 runs in rollers 35 and the rear rail 41 runs between pairs of rollers 42, 43 and is supported by horizontal rollers. The rollers 35 are mounted on a bar 34 secured to rocking arms 33 engaging levers 32 connected to the shift-key levers 301. On depressing the shift keys 30 the paper-carriage receives shift movement about the axis of the rear rail, the movement being limited by stops 37. The arms 33 are pivoted on levers 46 which can be rocked by a push key 45, the rollers 35 being thereby retracted so that the papercarriage can be raised to the vertical position and be then removed from the machine; or the paper-carriage can be raised to afford access to the action &c. On depressing the paper-carriage, the rail 36 retracts the rollers 35 by riding over bevels thereon and a spring 49 then causes the rollers to re-engage the rail. Key locks.-One of the shift-key levers 301, Fig. 3, carries a pivoted locking-key 38 provided with a screw 39 adapted on depression of the locking-key to enter a notch in the key-lever 301 and lock the paper-carriage in the shift position. On slight further depression of the key-lever 301 the locking-key is released and is raised by a spring 40.
Patent GB-1349778-A (GB)
Title: Method of producing from an object with a porous or irregular  surface structure a mould from which full scale moulds of the  object can be produced
IPC: B22C3/00
Filed: 1971-07-12
Abstract: 1349778 Making moulds H FLEISCHER 12 July 1971 [13 July 1970] 32661/71 Heading B5A In a method of producing a mould from an object, e.g. a stuffed bird, having an irregular surface structure, the object is first sprayed with a dark lacquer then immersed in a vessel of molten wax, the wax being cooled to produce a block of wax containing the object; the superfluous wax is then removed from the contours of the object using a heated tool or solvent until a coated object having a smooth surface is obtained, the coated object then being used as a core to produce a mould from, e.g. plastics material or sand. The vessel used is preferably transparent so that the object may be arranged in a desired disposition, e.g. the feathers of a bird arranged, before hardening the wax. The dark lacquer enables the object to be seen through the wax, thus facilitating precise removal of the superfluous wax.
Patent GB-1515446-A (GB)
Title: Constant voltage circuit
IPC: G05F3/30
Filed: 1976-08-05
Abstract: 1515446 Automatic voltage regulation TOKYO SHIBAURA ELECTRIC CO Ltd 5 Aug 1976 [12 Aug 1975] 32711/76 Heading G3X A transistor circuit is arranged so as to produce a constant voltage irrespective of changes in temperature. As shown in Fig. 1, current from a source 2 flows through a resistor R1 and transistors TR1, TR2 to earth. Similarly, current flows in a transistor TR3, and voltages which increase with temperature are developed across resistors R2, R3. At the same time, a voltage decreasing with temperature is developed across the base-emitter path of a  transistor TR4. If the values of the resistors R2, R3 are suitably chosen, the variations with temperature can be arranged to compensate each other, so that an output voltage appearing at a terminal 1 remains constant. In another embodiment, Fig. 2 (not shown), a starting circuit with a field effect transistor (TR11) is used, and a constant current source (TR5, 6) and Darlington output circuit improve stabilization. Circuits providing a reduced input/output voltage drop and a negative output voltage are also described, Figs. 3, 4 (not shown), and other embodiments, Figs. 5, 6 (not shown), supply multiples of the voltage level obtainable from the circuit of Fig. 1. The embodiment of Fig. 7 (not shown) has a reduced dissipation, while another circuit, Fig. 8 (not shown), increases stability by employing a constant current load circuit (TR40, 41, 42). In further embodiments, Figs. 9-11 (not shown), the output voltage can be varied by adjusting the proportion of the output which is fed back to the resistor R3 and transistor TR3.
Patent GB-654864-A (GB)
Title: Improvements in manufacture of carbon black
IPC: C09C1/50
Filed: 1948-12-17
Abstract: <PICT:0654864/III/1> <PICT:0654864/III/2> Furnace black is produced by injecting, into a turbulent stream of blast flame gases flowing at high linear velocity through an unobstructed unconstricted rectangular reaction chamber not over 1 1/2 feet wide and of greater height, the hydrocarbon to be decomposed as a plurality of streams from 1/4 -\ba3/4 inch diameter spaced up each side of the chamber near and equidistant from the downstream end, where the ratio of the mass velocity of the hydrocarbon to that of the blast flame gases is 3 : 1 to 10 : 1.  Air and fuel gas are injected through burner block 3, Fig. 3, into refractory-lined reaction chamber 1.  Methane, enriched to at least 1200 B.Th.U. by addition of heavier hydrocarbons, with or without up to 40 per cent steam and preheated to, say, 700 DEG  F., is injected through ports 22.  The turbulent stream at 2400-2750 DEG  F. passes to blending chamber 4 and cylindrical chamber 5 where it is cooled by water sprays 6 to control the contact time to not more than 1/2 sec.; additional water-sprays 35, 36 may also be provided.  The effluent from chamber 5 passes to a conventional collection unit.  In the burner assembly, Fig. 4, fuel gas is injected through pipes 15 and manifolds 14 to jets 18 positioned behind burner ports 7 in burner block 3.  Air under superatmospheric pressure passes through inlet 11 into wind-box 10 and is evenly distributed by vanes 12 and adjustable dampers 13.  The position of the jets may be horizontally adjusted relative to the burner ports and pipes 15 may be graduated outside the wind-box to indicate position. Specifications 654,340 and 654,865 are referred to.
Patent GB-365670-A (GB)
Title: Improvements connected with electric liquid heaters
IPC: F24H1/20
Filed: 1931-06-30
Abstract: 365,670. Heating liquids by electricity. SANTON, Ltd. and SANDERS, H. C., Dock Street, Newport, Monmouthshire. June 30, 1931, No. 32715. [Class 39 (iii).] The heating elements 1 are surrounded by a casing 4 having an inlet 9 and an extended outlet 11 leading to the top of the tank, and a second casing 5 provided with an inlet 8 surrounds the first casing to form a preheater for the water entering the first casing. The casing 5 is air-jacketed. Specification 322,055, [Class 39 (iii), Heating by electricity], is referred to.
Patent GB-1392456-A (GB)
Title: Method of preparing polycrystalline cubic boron nitride
IPC: C04B35/626
Filed: 1972-07-13
Abstract: 1392456 Polycrystalline cubic boron nitride FILIAL ORDENA LENINA INSTITUTA KHIMICHESKOI FIZIKI AKADEMII NAUK SSSR INSTITUT NOVYKH KHIMICHESKIKH PROBLEM AKADEMII NAUK SSSR INSTITUT FIZIKI VYSOKIKH DAVLENY AKADEMII NAUK SSSR GOSUDARSTVENNY ABRAZIVNY ZAVOD "ILICH" and TSENTRALNY NAUCHNO - ISSLEDOVATELSKY TEKHNOLOGICHESKY INSTITUT 13 July 1972 [19 July 1971] 32719/72 Heading C1A A powder containing dense modifications of boron nitride, part of which has been subjected to shock waves, is subjected to a pressure of at least 40 kbars and a temperature over 1200‹ C. to produce wear resistant polycrystalline cubic boron nitride. The "dense modifications" specified are those with a coordination number equal to 4 for both boron and nitrogen atoms, i.e. cubic densely packed BN and hexagonal densely packed wurtzite-like BN. The shock waves may be produced by explosion.
Patent GB-369982-A (GB)
Title: Improvements in or relating to metal tubing and the manufacture of the same
IPC: B21C37/09
Filed: 1930-10-31
Abstract: 369,982. C o a t i n g. ARMSTRONG, J. J.. V., 12, Church Street, Liverpool.- (Bundy Tubing Co. ; 4815, Bellevue Avenue, Detroit, Michigan, U.S.A.) Oct. 31, 1930, No. 32727. [Class 82 (ii).] Metal tubes having longitudinal joints with butt, lap, or lock seams, seams comprising interengaging projections and recesses, and plural ply tubes are united at the joint and simultaneously coated inside and outside with corrosion-resisting metal such as copper by passing the tube and a quantity of copper in the ratio of 0À15 ozs. per square foot through a furnace maintained at 2000‹ F. and containing a reducing atmosphere at such a speed as to cause the copper &c. to melt and flow into its seam and over both surfaces of the tube. The stock may consist of steel and of the alloy sold under the registered Trade Mark "Monel," and the coating and binding metal may be of copper or alloys thereof such as constantan or copper-silver or copper-gold alloys. Strip stock coated on each face with a layer of copper 0À0001 inch thick may be used, the coating being preferably effected by electroplating or by covering with copper powder mixed with a carrier and applying heat. The tube 2 is passed through an electric or other muffle furnace 1 and then through a water-jacketed cooling chamber, the furnace and chamber being supplied through conduit 6 with a non- oxidizing or reducing atmosphere such as hydrogen, carbon monoxide, or gas obtained by cracking illumir.ating gas. When using copper as the coating metal, a steel tube of # inch diameter and 0À015 inch thick is passed at two feet per minute through a furnace 6 feet long and at a temperature of 2000‹ F. Metal in wire, powder, or block form may be applied in addition when a more thinly coated strip is used or when it is desired to provide a thick coating. Specifications 347,723 and 359,731 are referred to.
Patent GB-1396130-A (GB)
Title: Colloid mill
IPC: B02C17/16
Filed: 1972-07-13
Abstract: 1396130 Agitator mills K FUNK-HEPORAUTA 13 July 1972 [26 July 1971 26 May 1972] 32770/72 Heading B2A An agitator ball mill includes a filter secured to and rotatable with the stirrer shaft 14 Fig. 4. In one embodiment the mill vessel 16 is jacketted at 17, and material supplied at the base (not shown) of the vessel leaves via an outlet 19 the grinding medium e.g. glass beads being retained by sieve openings 6. To prevent clogging by e.g. thixotropic material the strippers (28) Fig. 5 (not shown) are secured to a wheel member 27 which is in turn connected to the vessel wall 25 by a tube 33. Thus in operation there is relative movement between the rotating filter member and the stationary strippers. Material is discharged via a space 30, passages 31, 32 and the conduit 19. In an alternative embodiment the strippers may be rotatable at a different speed and/or in a different direction. In other embodiments the separator may comprise discs 1, 2 Fig. 1 mounted on a shaft and supporting a metal slotted ring 3, protected by a wear member 5 which has holes widening towards the inside of the filter. Alternatively the filter may comprise a pile of rings or discs 7 each of which includes ribs 10, together with spacer rings 13 Fig. 2.
Patent GB-1435135-A (GB)
Title: Electroluminescent semiconductor devices method of machining a fixing slot in a fixed b
IPC: H01S5/026
Filed: 1973-07-10
Abstract: 1435135 Electroluminescence PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 10 July 1973 [13 July 1972] 32794/73 Heading C4S [Also in Division H1] The recombination volume of an electroluminescent semi-conductor device including a forward-biased junction J between a body 1 and a region 2 is controlled by an electric field induced in a zone 2b of the latter by an electrode 5 capacitively coupled to the region 2 through a dielectric layer 4. In accordance with the magnitude and polarity of the field in zone 2b minority carriers may be caused to recombine preferentially near the surface of the region 2 where recombination is non-radiative and no electroluminescence results, or deep in the bulk of the semi-conductor material where recombination is radiative and electroluminescence is produced. The thickness of the region 2 is preferably 1-10 minority carrier diffusion lengths, while the zone 2a below the field zone 2b is less than one diffusion length thick. In a device such as that illustrated different voltages applied to the two capacitive electrodes 5, 6 may cause one part of the device to radiate, e.g. through transparent dielectric and electrode layers 4, 5, while another part remains dark, and this facility may be employed in a display device having either a common junction J or a plurality of junctions each of which underlie a corresponding capactive electrode. The junction J is preferably a PN junction and may be formed by epitaxy or diffusion. In the former case it may be a heterojunction, e.g. between N-type GaAs body 1 and Te-doped GaAs 0À6 P 0À4  region 2. The region 2 preferably includes Zn introduced by diffusion and subsequently outdiffused so as to contain a concentration of recombination centres which diminishes as the surface is approached. Other semi-conductor materials mentioned are GaP and GaAlAs. The dielectric layer 4 may be an oxide of Si or Al, while the transparent electrodes 5, 6 may be of tin oxide, indium oxide or Cr of appropriate thinness. The surface of the dielectric layer 4 between the electrodes 5, 6 may be covered with an opaque insulating coating, optionally covered itself by a conductive layer.
Patent GB-318428-A (GB)
Title: Improvements in rotary tobacco feed for cigar machines
IPC: A24C1/02
Filed: 1928-11-09
Abstract: 318,428. Marks, Sir G. C., (International Cigar Machinery Co.). Nov. 9, 1928. Cigar-making machines. - Means for feeding scrap tobacco in a cigar machine, in such a manner as to arrange elongated scraps lengthwise of the bunch, comprises means for forwarding a layer of tobacco, means for tumbling a mass of tobacco over and over above the forwarding means, and means for feeding tobacco down from the bottom of the tumbling means to the forwarding means. As shown, the forwarding means is a feed belt 9 passing over a drum 21 on a shaft 18, and over a guide plate 10 and idlers 22-24, and the tumbling means comprises a hopper having a stationary central portion 6 and rotating side walls 7 carried by a shaft 14 driven from the shaft 18 by chain gearing 16. Agitating prongs 19 are mounted on the shaft 14 within the stationary portion of the hopper. The tobacco is fed from the bottom of the hopper by star-wheels 27 on a shaft 29, this shaft and the shafts of star wheels 34, 40 being driven through chain gearing 31, 37, 39.