baber/WOPTO huggingface dataset:
Patent GB-628026-A (GB)
Title: A process for the production of hydroaromatic hydrocarbons
IPC: C07C5/29
Filed: 1947-04-09
Abstract: A process for producing hydroaromatic hydrocarbons by isomerization of non-hydroaromatic naphthenes in mixtures with other hydrocarbons, comprises subjecting to isomerization a fraction which does not contain hydrocarbons of higher boiling point than the non-aromatic naphthenes, to convert the latter into hydroaromatic hydrocarbons which are recovered by fractionation. Thus, a mixture boiling between 50 DEG  and 100 DEG  C. contains methyl cyclopentane (b.p. 72 DEG C.), which is not separable by fractionation, while the cyclohexane formed by isomerization is also not separable.  By isolating the fraction boiling up to 75 DEG  C., and isomerizing, the cyclohexane formed is readily separated by fractionating.  When aluminium chloride is used as isomerization catalyst, it is preferably previously to remove alkenes present.  Aromatics may also be removed from the isomerization product prior to the fractionation.  In an example, a fraction boiling at 65-75 DEG  C. separated from a naphthenic stock and consisting of naphthenes 60, aromatics 10, and paraffins 30 per cent by weight, is isomerized with 1 per cent by weight aluminium chloride and 5 per cent hydrogen chloride at 80 DEG C. for 10 hours.  Fractionation of the product, after washing and drying, gives cyclohexane.  The product may first be treated with sulphuric acid at 20 DEG  C. to remove aromatics.  The Specification as open to inspection under Sect. 91 comprises selecting a fraction containing naphthenes of the desired number of carbon atoms or boiling at a temperature approximating to, but not above, the boiling point of the hydroaromatic hydrocarbons desired, and isomerizing this.  To produce methyl cyclohexane, a fraction boiling up to 95-100 DEG  C. may be used.  For cyclohexane, a fraction boiling up to 75-78 DEG  C. is suitable.  Isomerizing catalysts specified include also AlBr3, and halides of Tl, Ga, Zr, Ta, Nb, In, with HCl, HBr, HI or HF as promoter.  Partial pressures of hydrogen halide of 3-20 atms. are preferred.  Liquid phase reaction at 40-130 DEG  C. is preferable. Complexes of the formula AlCl3.C6HnRe-n, where R is an alky radical, e.g. complexes with butyl benzene, tripropyl benzene, xylene, toluene, and benzene, and mixtures of AlCl3 with other metal salts, e.g. halides of Be, Sb, Zn, Sn, Co, and Cu, are specified.  An additional example describes the isomerization of methylcyclopentane with 10 per cent of aluminium chloride-butyl benzene, and hydrogen chloride, cyclohexane being recovered by fractionation.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1092592-A (GB)
Title: Improvements in or relating to harvesting apparatus
IPC: A01D61/00
Filed: 1965-03-05
Abstract: 1,092,592. Harvesting. INTERNATIONAL HARVESTER CO. March 5, 1965 [Nov. 24, 1964], No. 9437/65. Addition to 1,086,897. Heading A1F. In a header attachment for a harvester siimlar to that described in Specification 1,086,897 the free ends of the augers 17, 18, 17<SP>1</SP>, 18<SP>1</SP> extend over the crop collection area 14. Each auger is mounted on a driven shaft 32 journalled in bearings 37, 38 in a fixed tube 34 which is rigidly fixed to the framework of the header. Disposed between the cutter bar assembly 11 and the augers 18, 18<SP>1</SP> are two stone guards 54 (Fig. 1) which comprise upper and lower members 57 and 51 respectively.
Patent GB-673477-A (GB)
Title: Improvements in or relating to electric discharge lamps
IPC: H01J61/20
Filed: 1950-04-18
Abstract: 673,477. Discharge lamps. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. April 18, 1950 [June 29, 1949], No. 9464/50. Drawings to Specification. Class 39 (i). A low-pressure elongated discharge lamp comprises a gas mixture filling of 45-55 per cent by volume of krypton together with 55-45 per cent argon and also mercury vapour. The pressure may be 2-3 mm. of mercury. The radiation is mainly ultra-violet of mercury resonance wavelength 2537 Š and curves are shown for various mixture proportions and pressures indicating that maximum UV output is at 50 per cent krypton, 50 per cent argon, at a pressure of 2 mm. The lamp envelope may consist of ultra-violet transmitting glass as known under the Registered Trade Mark " Vycor," the lamp being used for bactericidal purposes, or the envelope may be coated inside with halo phosphate or other phosphors highly responsive to 2537 Š radiation. Both the visible light output and the efficiency in lumens per watt are then a maximum for the optimum mixture. Maximum efficiency is obtained for envelope wall temperatures of 40-50‹ C. (corresponding to mercury vapour pressures of 6-13 microns). The lamps operate without strictions at lower ambient and wall temperatures compared with pure krypton and mercury lamps. A test lamp is described with end por. tions of the envelope formed of glass known under the Registered Trade Mark " Pyrex " coated interiorly with a 3500‹ white phosphor composed of zinc beryllium silicate and magnesium tungstate, and with a central portion of " Vycor " glass, the lamp being surrounded by a water jacket with corresponding portions of " Pyrex " and " Vycor," and adapted to introduce different mixtures and pressures of inert gases.
Patent GB-266167-A (GB)
Title: Improvements in or relating to presser-feet for leather-stitching machines
IPC: D05B15/04
Filed: 1926-04-10
Abstract: 266,167. Junker & Ruh, Ges., and Guhl, H. April 10, 1926. Presser-bars with periodic control.-A presserfoot is carried by a lever having means associated therewith to produce a uniform pressure regardless of the thickness of the work. and means for locking the presser-foot on the work and releasing it therefrom controlled by a member situated on the lever. The lever 5 carrying the foot 7 is pivoted at 6 and carries a sliding block 8 pivoted to a lever 9, which forms with the block 8 a toggle mechanism through which the pressure of a spring 14 located on the lever 5 is transmitted to the presser-foot and at the same time locks the latter on the work. When a thin article is beneath the presser-foot the spring is extended more than in the case of a thick article, but the extra extension of the spring is compensated by the inclination of the lever 9 to the lever 5 being nearer to the vertical. The lever 9 extends beyond its pivot in the form of two arms 18, 19, of which the arm 19 serves for engagement by a manual lifting lever 23. The arm 18 is formed with a toothed segment 20, which is adapted to be engaged by a spring-stressed pawl'29 mounted on an arm 28 of a lever 25, 28. This lever is coaxial with an actuating lever 13 and is moved thereby through the agency of a pin 27 engaging a slot 26 in the lever-arm 25. The pawl 29 having engaged the segment 20, further movement of the lever 13 causes the swinging of the lever 9 and the lifting of the presser-foot. The lever 25 is temporarily locked against return movement, during the latter part of the forward swing of the lever 13, by a spring pawl 32, one end of which snaps into a recess 35 in the lever 13 allowing the other end to move behind the lever 25. On rhe return movement of the lever 13 the pawl 32 remains in locking position until the end of the recess 35 deflects it. The variable position of the block 8 and lever 9, owing to variation in thickness of the work, is compensated for by the movement of the lever 9 through the pawl 29 and rack 20, so that the presser-foot is always lifted by the same amount above the work. In a modification the actuation of the lever 25 by the lever 13 is effected through a shock-absorbing connection.
Patent GB-1270383-A (GB)
Title: Apparatus for removing fibre from storage bins
Inventor: RICHARDS RICHARD THOMAS DENNIS
IPC: D01G7/04
Filed: 1968-02-28
Abstract: 1,270,383. Feeding, opening and blending fibres. WOOL INDUSTRIES RESEARCH ASSOCIATION. 27 May, 1968 [28 Feb., 1968], No. 9562/68. Headings D1F and D1N. Fibres are removed and blended from a storage bin 11 in an apparatus having (a) means 15 for plucking fibres from the fibrous mass within the bin from a substantially rectangular area extending over the entire depth of material within the pin and conveying the plucked material from the bin, and (b) means for rotating the plucking means around a vertical, or substantially vertical, axis so that the plucking means removes the fibrous material from a solid of revolutions from within the bin. As shown, an endless spiked lattice moves around upper and lower rollers 13, 14 and is simultaneously rotated around the centre 12 of circular bin 11, the fibres are removed from the lattice 15 by a spiked roller 17 and are sucked away through a hood over roller 17. In operation the lattice 15 rotates through 360‹ from one side of fixed baffle 20 to the other. In alternative embodiments; the spiked lattice is inclined and the fibres are sucked away downwardly (Fig. 4, not shown); two lattices and removal rollers are used with one pair operating above the other (Fig. 5, not shown); two lattices feed a single removal roller from above and below (Fig. 6, not shown); the lattice moves about rollers in a horizontal direction to feed the fibres to a suction device operating through the central post 12. (For Figures see next column)
Patent GB-782649-A (GB)
Title: Improvements in and relating to metal pickling installations
IPC: C23G3/00
Filed: 1956-03-28
Abstract: 782,649. Pickling metals. RUTHNER, O. March 28, 1956 [March 28, 1955], No. 9688/56. Class 82(2) An apparatus for pickling metal articles in movable drums comprises a floor-supported movable gantry straddling the aligned pickling tanks and having a vertically movable crosshead carrying the drums by means of rollers which also rotate the drums. A hood' is arranged on the gantry to cover the tank in use and thus prevent the escape of fumes. The drum 11 is supported by rollers 10 each journalled -movably in blocks 9 so as to secure or to free the drums. By driving these rollers the drums are rotated. A crosshead 6 supports the drums and is vertically movable in supports on the sides 1, 2 of the gantry. The gantry is carried on rails 8. An escape pipe 18 is provided on a hood 16 for fume removal. In a modification, an apparatus having a combined gantry and hood is described and illustrated. Rubber or like flaps, reaching down to the pickling tanks, are provided at each end 17 of the hood.
Patent GB-200177-A (GB)
Title: Improvements in press-button fastenings
IPC: A44B17/00
Filed: 1922-04-04
Abstract: 200,177. Morse, J. P. April 4, 1922. Stud-and-socket fastenings. - In a stud-andsocket fastening of the type in which the socket member comprises two members capable of relative axial movement, inclined spring fingers 6, Fig. 1 (Prov.), on a central member 4, which by their resiliency tend to occupy the open position, are held engaged under the head of the stud 1 by spring fingers 12 on a member 5 sliding in a fixed member 2 and held in the position shown by spring fingers 11 formed on the inner or cuter wall of the member 5. To release the stud 1, the member 5 is depressed to allow the fingers 6 to spring outwardly. In the modification, Fig. 1 (Comp.), the fingers 6 are formed with loops 6<c> and locking shoulders 6<a> with which portions 12 on the inner wall of the member 5 engage. The stud 1 is released by depressing the member 5 to force the portions 12 passed the shoulders 6<a>, the member 5, when released, moving upwardly under the action of its springs and carrying with it the member 4, which then has to be depressed to force the shoulders 6<a> passed the portions 12 and cause the parts to reassume the position shown. In a modification of this construction, the fingers 6 may be provided on the member 5 and adapted normally to engage the stud, being released by pressing in the member 4. The parts may be locked against movement by a lock mounted in the member 5, the key acting to force lateral bolts through the engaging rims 3, 9 of the members 2, 5, and through the engaging walls of the members 4, 5.
Patent GB-473185-A (GB)
Title: Improved motor fuels
IPC: C10L1/06
Filed: 1936-04-01
Abstract: <PICT:0473185/III/1> Motor spirit consists of gasolene, a volatile polymer of a 2--5 carbon atom olefine, and a volatile hydrogenated polymer of a 2--5 carbon atom olefine, the relative proportions of the 2 polymers being those which, as shown in the diagram, increase the octane number of the fuel by more than the sum of the increases when the polymers are used separately.  Especially effective is 10 vol. of di-isobutylene and 30 vol. of hydrogenated di-isobutylene with 60 vol. of cracked or straight-run gasolene.  There may be added: aromatics, e.g. benzol lubricating oil; gum flux as described in Specification 419,690; other anti-detonants, e.g. lead tetraethyl.
Patent GB-1499455-A (GB)
Title: Propagation of potential inversion wells in semiconductor bodies
IPC: H01L29/423
Filed: 1975-03-07
Abstract: 1499455 Matrix displays INTERNATIONAL BUSINESS MACHINES CORP 7 March 1975 [23 May 1974] 9722/75 Heading G5C [Also in Division H1] Localized charge packages are transferred along channels defined by barriers 56 (e.g. p<SP>+</SP> strips in an otherwise p-type semiconductor body) under the influence of an r.f. electromagnetic wave propagating along a respective conductor 54 adjacent the surface. The embodiment is an image sensing/generating device. In the image sensing mode the device is exposed to radiation and scanned by an r.f. wave on line 54. Column-by column read-out is effected at detector bank 66. For image generation image signals are supplied at inputs 74, 76 while the line 54 carries an r.f. wave. Once the matrix is fully loaded a negative pulse is applied to a grand plane overlying and insulated from the line 54 to "dump" the charge packages and cause luminescence.
Patent GB-820372-A (GB)
Title: Improvements in or relating to magnetrons
Inventor: DIX CYRIL HENRY
IPC: H01J23/10
Filed: 1956-03-28
Abstract: 820,372. Magnetrons. M-O VALVE CO. Ltd. March 18, 1957 [March 28, 1956], No. 9766/56. Class 39(1). In a multicavity magnetron having polepieces sealed to each end of the anode block, the outer ends of each polepiece are planar inclined bevels (the side edges of the bevelled end surfaces can if desired be rounded off), to approximately follow the shape of the external ring permanent or electromagnet, the longer sides of the polepieces lying on the same side of the anode. The square anode block has a cylindrical cathode chamber closed at the ends by end plates 2, 3 carrying polepieces 4, 5 of circular cross-section. The indirectly heated cathode is closed at one end by a metal disc 14 and at the other end is mounted in a central aperture of polepiece 4, the heater lead 15 passing through the same aperture and terminating in a coiled portion wrapped around and welded to heater terminal 16 ; the coiled portion takes up thermal expansion. The cathode lead is a tube 9 with a flanged reinforced end 19 serving as an external cathode terminal. Glass button 17, glass thimble 11 and metal tube 10 complete the vacuum. The annular gap in polepiece 4 serves to insulate the anode block from the cathode. The polpiece 5 has an annular channel 24 to simulate the annular gap in polepiece 4 and a central channel communicating with exhaust tube 52 closed by a cold weld and protected by cap 26. The anode block has an even number of resonators and is provided on either side with concentric ring straps 27. An output coupling loop 28 has the legs thereof connected to the outer ring straps and has a support rod 29 ; it is covered by glass dome seal 32. Water cooling channels 33 are provided in the anode block. The permanent ring magnet 34 is of rectangular cross-section and has reduced ends formed with semi-cylindrical recesses to fit round the longer sides of the polepieces. The inclination of the plane bevels of the two polepieces is preferably equal. The heater lead may be a tube instead of a rod. The polepieces may have annular inserts in their annular gaps or channels gaps being left between inserts and polepieces for maintenance of insulation between electrodes and insulating spacer 18 steadies the heater lead.
Patent GB-1329207-A (GB)
Title: 21-fluoro-3,16,17-trihydroxy-pregnane compounds and their derivatives
IPC: A61K31/573
Filed: 1971-04-19
Abstract: 1329207 21-Fluoro-16,17-dihydroxy-pregnanes and their derivatives CIBA-GEIGY AG 19 April 1971 [17 April 1970] 9796/71 Heading C2U Novel steroids of the formula (wherein X is F or Cl and R, R 1  and R 2  are each free, esterified or etherified OH groups or R 1  and R 2  together are O-C (=Z)-O where Z is 2 aliphatic, aromatic or araliphatic hydrocarbon radicals which may be the same or different or # C = Z is a cyoloalkylidene group) are prepared by reduction of the corresponding 3-ones. Products may be hydrolysed, esterified, etherified or ketalized. The novel steroids are stated to possess gestagenic, ovulation-inhibiting and anti-inflammatory action, and they may be made up into pharmaceutical compoitions with suitable carriers. Specifications 1,320,301 and 1,320,302 are referred to.
Patent GB-447853-A (GB)
Title: An improved method of quickly stopping continuous current motors for driving rolling mills
IPC: H02P7/34
Filed: 1935-03-29
Abstract: 447,853. Control of D.C. motors. SCHLOEMANN AKT.-GES., 13, Steinstrasse, D³sseldorf, Germany. March 29, 1935, No. 9805. Convention date, March 29, 1934. [Class 38 (iii)] Regenerative braking.- In a Ward-Leonard system for rolling - mill motors 2, in which the motors are braked by short-circuiting the field 1 of the generator 3, the generator has only a separately excited field winding, and the motors remain fully excited, the generator field 1 is fed through a resistance 6 and short-circuited through an adjustable part of the resistance by means of a relay 5. In a modification, Fig. 2 (not shown), the shortcircuit across the generator field includes in addition a choking coil. The field winding of an exciter supplying the motor fields is disconnected or short-circuited at the end of the braking period. In an arrangement described with reference to Fig. 3 (not shown), the generator and motor fields are fed from a compound-wound exciter, and at the end of the braking period a time relay short-circuits the exciter shunt field winding and a low-voltage relay responsive to the exciter voltage disconnects the exciter from the generator and motor field. Specification 432,292 is referred to. The Specification as open to inspection under Sect. 91 comprises also an arrangement in which the braking is effected by inserting a resistance with or without an inductance in series with the generator field. This subjectmatter does not appear in the Specification as accepted.
Patent GB-261609-A (GB)
Title: Improvements relating to gas heated cooking apparatus
IPC: F24C15/32
Filed: 1926-04-14
Abstract: 261,609. Radiation, Ltd., and Yates, H. J. April 14, 1926. Gas cooking- stoves; air supply for combustion; outlets to chimneys. - A gas oven is provided with a flue outlet a and a burner c, both at the rear, a partition f being arranged between them to enable the waste gases to pass from the oven without interfering with the combustion of the gas. In the construction shown, the tubular burner c is arranged in a recess at the back of the oven, one side of the recess being formed bv the inclined partition plate f, which serves also as a grease guard for the burner. The plate f does not extend the full width of the oven, in order to provide an opening at one or both ends for the waste gases to pass behind it to the outlet a. Preferably one or more additional outlets h are provided beneath the main outlet, opening directly to the atmosphere or to the main outlet. An air directing plate i is arranged in front of the burners, the upper edge of which .is preferably formed as an overhanging lip directed towards the oven interior and serving to protect the flames from air gusts entering the bottom of the oven.
Patent GB-985906-A (GB)
Title: Devices for use in erecting wire fencing
IPC: E04H17/26
Filed: 1963-03-13
Abstract: 985,906. Holding and picking-up tools. A. OATES. March 5, 1964 [March 13, 1963], No. 9858/63. Heading B4W. A tool for spreading and pulling out mesh type wire fencing comprises a rigid bar 7 having a handle 8 on one side and a series of spaced hooks 3 on the other, the hooks having blunt ends directed back towards the bar. As shown, the bar is provided with eyes 5 to which a chain handle 8 is attached. Alternatively a rigid handle may be provided. The bar may be solid or tubular and the hooks may be formed integral with the bar or attached thereto. In order to provide a tool of increased length, means may be provided for connecting the bar 7 to the bar of a similar tool.
Patent GB-358027-A (GB)
IPC: C25D3/30
Filed: 1930-03-27
Abstract: 358,027. Electrolysis. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. March 27, 1930, No. 9859. Convention date, March 28, 1929. Void [Published under Sect. 91 of the Acts]. [Class 41.] Tin, depositing.-Tin coatings of any desired thickness, in particular tin plate, are deposited from an alkaline electrolyte in which the content of free alkali, inclusive of that set free by hydrolysis but not including alkali metal carbonate, is maintained between 1À5 and 8 per cent; soluble or insoluble anodes may be employed. In an example, an electrolyte containing 3À5 per cent of tin as stannate and stannite, and free alkali content 3 per cent is electrolyzed with a current density 200 amps per sq. metre. Formation of spongy tin only occurs after 21 minutes; with a free alkali content of 5À5 per cent, formation of spongy tin occurs after 2 minutes. In another example, the electrolyte contains 6 per cent of tin as stannate and stannite and 4-5 per cent of free alkali ; with the same current density as before separation of spongy tin occurs after 13 minutes.
Patent GB-550880-A (GB)
Title: Improvements in or relating to agricultural tool bar mountings
IPC: A01B51/04
Filed: 1941-08-04
Abstract: 550,880. Supporting and coupling implements to tractors. THORPE, R. Aug. 4, 1941, No. 9890. [Class 6 (i)] Side bars 2 of a frame 1 rigidly secured to a tractor support a spindle 3 carrying a drum 6 and an implement carrying frame 4. A lever 5 associated with ratchet and pawl mechanism and a cord 7 determine the angular position of the frame 4 and a lever 5a maintains the position. Adjustable ground wheels 12 determine the height of the spindle and the tool bar 11.
Patent GB-625784-A (GB)
Title: Improvements in and relating to wire die nibs
IPC: B22F5/10
Filed: 1947-04-14
Abstract: 625,784. Making drawing-dies ; powder metallurgy. BRITISH THOMSON-HOUSTON CO., Ltd. April 14, 1947, No. 9894. Convention date, April 16, 1946. [Classes 83 (ii) and 83 (iv)] Dies for drawing fine wire are produced by powder metallurgy from a mixture of tungsten carbide and cobalt. The powder is compressed in a steel mould between opposing plungers, one of which carries a core pin to produce the bore 8, Fig. 2, that forms the operative land of the die. Initial sintering is effected at 700‹ C. after which the die which is still comparatively soft is reamered out by a tool 11, Fig. 3, to finish the reducing section of the die and and remove the metal 10 remaining between the throat and the land, about 0.125 inch thick. The diameter of the land may be 0.0035 inch and its length 0.02 inch. The length of the coned relief on the exit side is 0.015 inch. The die is next sintered into a hard dense mass at about 1450‹ C. with a reduction in volume of about 20 per cent. The final step is polishing, which may increase the diameter of the land to 0.005 inch.