baber/WOPTO huggingface dataset:
Patent GB-307082-A (GB)
Title: Improvements relating to photo-electric cells
IPC: H01J40/06
Filed: 1929-03-02
Abstract: 307,082. Associated Electrical Industries, Ltd., (Assignees of Zworykin, V. K.). March 3, 1928, [Convention date]. Vacuum tubes. - A photoelectric cell is formed by depositing a layer of a conductor such as magnesium, an alkaline earth metal or alloy, aluminium alloy, or misch metal on a surface within the cell, after sealing- off and subsequently vaporizing a substance containing an alkali or other light-sensitive metal so as to form a very thin film on the conducting layer; several such lightsensitive films may be deposited so as to form a composite film. As shown, a piece of magnesium 5 is attached to an electrode 4, preferably of annular form, having a support, which carries a glass disc 7 and is passed through a neck having a sleeve 6 and a flange 9. After exhaustion the bulb is sealed and the electrode 4 is heated by high-frequency induced current so as to vaporize the magnesium 5, which is deposited on the wall and in contact with a wire 8 sealed through the wall. The disc, sleeve, and flange prevent deposition of metal on the neck. The light-sensitive metal may be introduced by heating it in a small tube, or a weak solution of caesium &c. trinitride may be painted on a part of the electrode 4 remote from the magnesium, or a salt of an alkali metal, such as a carbonate, cyanide. chromate. borate, phosphate or tungstate may be mounted on an auxiliary electrode 14 and heated by electronic or ionic bombardment from an auxiliary filament electrode 13, so as to decompose the salt. A small part of the wall is subsequently heated to drive off metal and form a window. A filling of gas such as argon, helium, or neon may be provided. Specifications 178,300 and 190,218 are referred to.
Patent GB-870314-A (GB)
Title: Electromechanical arrangement comprising an automatic length-measuring system
Filed: 1960-02-26
Abstract: 870,314. Measuring displacement electrically; electric copying-machines. CONTRAVES A.G. Feb. 26, 1960 [Feb. 26, 1959], No. 6919/60. Classes 38 (6) and 40 (1). [Also in Group XXXV] A transducer for determining the position of e.g. a workpiece relative to a tool comprises a scale mounted on the work-table, having alternate North and South poles at regular intervals, and a rotated screw thread having the same pitch as the poles on the scale, the magnetic flux picked up by the screw thread passing through a coil, whereby an alternating voltage is produced whose phase is indicative of the position of the screw thread, and the workpiece, relative to the scale. As shown (Fig. 1), a scale 1 made of ceramically sintered iron oxide is mounted on a work-table 1, longitudinally adjustable by a motor 3 by a lead screw 4. The top surface is cylindrical and faced with a layer 10 of cast epoxy resin containing magnetic iron powder, which is polarized to produce alternate North and South poles at regular, standard intervals, e.g. 2 mm. Coaxial with the scale 10 is a hollow, double worm 7, the two parts being separated at the centre by a non-magnetic ring 76. The threads on each half of the worm 7 have the same pitch as the poles on the scale 10, but the threads on one half of worm 7 are displaced by half a pitch relative to the threads on the other half. Both halves are interconnected magnetically by a central rod 70 surrounded by a coil 71. The worm 7 is rotated at a constant speed by a motor 6, whereby an alternating voltage Um is induced in coil 71, whose phase is indicative of the position of worm 7 relative to the scale 10. The motor 6 also drives a single worm 8 of the same pitch, located near a fixed scale 100, to produce an alternating voltage Ur of the same frequency with a fixed phase, to act as a reference, in a coil 81 wound on an external yoke 80. The reference voltage Ur is fed through a circuit P where its phase is adjusted manually or by a recorded programme by variation of a resistance Rp, the resultant command voltage Vp being compared with the measuring voltage Um in a phase-sensitive rectifier comprising transistors T 1 -T 4 , to give a D.C. error voltage Us proportional to the phase difference, which energizes motor 3 to drive the work-table 1 until the measuring voltage Um and the command voltage Up are in phase. In a modification, the double worm 7 is also provided with an external yoke carrying the coil 71.
Patent GB-1152512-A (GB)
Title: Firing Arrangement For Process Heaters
IPC: C10G9/20
Filed: 1966-02-17
Abstract: 1,152,512. Liquid heating furnaces. ALCORN COMBUSTION CO. 17 Feb., 1966 [15 Oct., 1965], No. 6922/66. Addition to 1,152,511. Headings F4A and F4B. In a process liquid heater of the kind described in the parent Specification, the trim burners take the form of long multi-jet burners located in recesses 34 at either side of the troughs 28. The recesses 34 are formed in elongated burner blocks 33 having usptanding lips 36 to shield the lower tubes 26 from direct radiation, and the recesses 34 are of such depth that combustion is completed within the recesses.
Patent GB-307306-A (GB)
Title: Process for the manufacture of new anthraquinone derivatives
IPC: C09B5/28
Filed: 1929-03-04
Abstract: 307,306. I. G. Farbenindustrie Akt.- Ges. March 3, 1928, [Convention date]. Samples furnished. Anthraquinone vat dyes. - 5-Amino-4<1>-acylamino-1: 1<1>-anthrimidocarbazoles, and their aerivatives containing substituents, such as alkoxyl and hydroxyl groups, in the anthraquinone nuclei, are obtained by saponifying the corresponding diacylamino compounds under relatively mild conditions, whereby the acylamino group in the 5-position is saponified, while that in the i-position remains intact. For this purpose, the diacylamino compounds may be treated with alcoholic caustic alkali of 8-15 per cent strength and at a temperature between about 100-120‹ G., or, preferably, heated in sulphuric acid to a temperature not exceeding 60‹ G. The products are dark-brown powders which may be used as vat dyes, dyeing cotton in reddish shades, fast to chlorine, or as intermediates for the manufacture of dyes. In examples, (1) 5: 4<1>-dibenzoyldiamino-1: 1<1>-anthrimidocarbazole is saponified by means of sulphuric acid; the product, when diazotized and boiled with alcohol, yields 4- benzoylamino - 1 : 11 - anthrimidocarbazole, (2) 5 ' 4<1> dibenzoyldiamino-8-methoxy-1 : 1'-anthrimidocarbazole (Specification 298,696) is saponified with sulphuric acid, and (3) 5: 4'-diacetyldiammo-1 : 1'-anthrimidocarbazole is saponified by heating with alcoholic potash in an autoclave. Specification 29352/10 also is referred to. The Specification as open to inspection under Sect. 91 (3) (a) also mentions the preparation of halogen derivatives of 5-amino-4-acylamino-l : 1'- anthrimidocarbazoles; this subject-matter does not appear in the Specification as accepted.
Patent GB-1219502-A (GB)
Title: Draw winders
IPC: D02J1/22
Filed: 1968-02-13
Abstract: 1,219,502. Draw winder. MASCHINENFABRIK RIETER A.G. 13 Feb., 1968 [20 Feb., 1967], No. 7086/68. Heading B5B. A draw winder for synthetic threads comprises a drawing roller 3, for stretching the filament threads from feed roller 2, and a thread relaxation apparatus disposed adjacent the drawing roller 3, which comprises a carrier 6 one end of which is pivotally mounted on the draw winder, a rotatable guide roller 4 mounted on carrier 6 adjacent the drawing roller 3, an auxiliary guide roller 8 mounted on carrier 6, and a heating element 7 mounted on the carrier between the guide roller 4 and auxiliary guide roller 8. The carrier 6 is pivotable with respect to the drawing roller 3 about an axis 10 substantially perpendicular with respect to a tangential plane between the drawing roller and the guide roller. The auxiliary guide roller 8 is preferably pivotable with respect to the heating element 7. As shown the draw winder has a plurality of drawing rollers 3 and thread relaxation apparatus. The base carriers 6, 6<SP>1</SP>, 6<SP>11</SP> are mounted to pivot as a unit on frame 9 about pivot axis 10. Thus an L-shaped rail 13 is secured to the lower position of the carriers and the flanges 14, 15 of rail 13 are deformable with respect to each other to form an angle of 90 degrees  (2-5 degrees) by means of a regulating means, which includes a rail 18, which is fixed to each carrier 6, 6<SP>1</SP>, 6<SP>11</SP> and at least two adjustment screws 17 connected with the rail and adjustably secured to the draw winder. The auxiliary guide roller 8 is pivotally mounted on the carrier with respect to the heating element about an axis passing near the upper end of the heating element.
Patent GB-981467-A (GB)
Title: Improvements relating to the dyeing of polyamide fibres, impregnation liquors for use therein, and the resulting products
IPC: D06P1/653
Filed: 1963-02-22
Abstract: Natural or synthetic polyamide fibres are dyed by impregnating them with an aqueous solution of acid wool dyes containing as carrier a soluble salt of a saturated aliphatic monocarboxylic acid having 8-14 carbon atoms at a temperature below the drawing temperature of the dyestuffs, followed by a heat treatment above the drawing temperature and then rinsing.  As salts of the above acids are specified lithium, sodium, potassium, ammonium and substituted ammonium salts especially amine derivatives.  The acids having 8-14 carbon atoms are caprylic, capric, lauric, pelargonic and myristic acids and coconut oil fatty acids.  Other auxiliaries which may be present in the impregnation liquors include inorganic salts, acids, and amides of saturated aliphatic monocarboxylic acids having 8-14 carbon atoms.  Preferably 10-60 grams/litre of soluble monocarboxylic acid salts are used in the impregnation liquor, the impregnation being at 40-70 DEG C. followed by squeezing to leave 40-110% by weight of liquor on weight of fibres left on the fibres.  An acid shock process or hot steaming followed by rinsing may be used to finish the dyeing.  Wool, silk and nylon may be dyed and continuous processes are referred to. The dyes may be metal-free, heavy metal containing dyes, metalisable dyes, mono or polyazo dyes, anthraquinone, phthalocyanine or nitro dyes. Conventional thickeners may be added to the impregnation liquors. Substituted ammonium salts of the acids include those derived from primary, secondary or tertiary amines, from monoalkylamines and hydroxyalkylamines.
Patent GB-601306-A (GB)
Title: Improvements in and relating to electrical contact brushes
IPC: H01R39/20
Filed: 1944-04-18
Abstract: A carbonaceous body for electrical contact brushes comprises carbon impregnated with a material comprising both polyoxyalkylene diols or their ethers, and also aliphatic carboxylic acids containing 8-25 carbon atoms or salts of such acids.  The diols or their ethers may be the reaction products of 1, 2 alkylene oxides, e.g. ethylene oxide and/or 1, 2 propylene oxide, with water, alcohols such as tetradecanol, methyl, ethyl or butyl alcohols, or glycols.  Suitable acids include oleic, stearic, palmitic or naphthenic acids.  The material may be incorporated in the carbon body by separate impregnations with each component, or by a single impregnation from previously mixed solutions of the ingredients, with the assistance of vacuum or pressure.  After a preliminary drying, the impregnated body may be given a final baking at a temperature of 150-210 DEG  C.  The baked residue of the impregnating mixture may constitute 2.0-6.0 per cent of the body. Specifications 353,926, 584,367 and 601,604 are referred to.ALSO:An impregnating composition for treating carbon and other electrical contact brushes comprises both polyoxyalkylene diols or their ethers and also aliphatic carboxylic acids containing 8-25 carbon atoms or salts of such acids.  The diols or their ethers may be the reaction products of 1, 2 alkylene oxides, e.g. ethylene oxide and/or 1, 2 propylene oxide with water, alcohols such as tetradecanol, methyl, ethyl or butyl alcohols, or glycols. Suitable acids include oleic, stearic, palmitic or naphthenic acids. Specifications 353,926, 584,367 and 601,604 are referred to.ALSO:An impregnating composition for treating carbon or other electrical contact brushes comprises both polyoxyalkylene diols or their ethers, and also aliphatic carboxylic acids containing 8-25 carbon atoms or salts of such acids.  The diols or their ethers may be the reaction products of 1, 2-alkylene oxides, e.g. ethylene oxide and/or 1, 2-propylene oxide with water, alcohols such as tetradecanol, methyl, ethyl or butyl alcohols, or glycols. Suitable acids include oleic, stearic, palmitic or naphthenic acids.  Specifications 353,926, 584,367 and 601,604 are referred to.
Patent GB-681672-A (GB)
Title: Improvements in and relating to flexible tubes of paper or fabric
IPC: B31F1/20
Filed: 1951-03-28
Abstract: 681,672. Paper &c. tubes. VADOTUB AKT.-GES. March 28, 1951 [May 9, 1950], No. 7227/51. Class 99 (ii). In a tube 15 formed from helicallywound bands 8, 9 of paper or fabric and with helical corrugations that are axiallycompressed together, layers of synthetic material, e.g. phenol or urea resins, are introduced between the bands and hardened by heating while the tube is under compression. A hardening accelerator may be added to the resins, or the resins may be applied to one band and, during winding, be brought into contact with an accelerator applied to another band. The bands may be wound on a mandrel 1, the tube, after being corrugated by threaded members 4, 7, passing through a heated channel 16 while a stuffing-box 18 applies an axial compression to the tube.
Patent GB-725971-A (GB)
Title: Regulated power supply
IPC: G05F1/52
Filed: 1953-03-16
Abstract: 725,971. Automatic voltage control systems. RADIO CORPORATION OF AMERICA. March 16, 1953 [March 21, 1952; March 28, 1952; Aug. 23, 1952], No. 7239/53. Class 38 (4). In a system for generating an E.H.T. voltage by rectifying the flyback pulses induced in the line output transformer of a television receiver, the voltage is stabilized by correctively varying the damping on the transformer by control of an auxiliary valve acting as a dummy load. The output of a line scan oscillator is applied at 17 to the line output amplifier 16 connected to a tapping on the primary of the line output transformer 14 to fly-back pulses being rectified at 12 and applied to the C.R.T. 10. The output voltage is applied via a corona discharge tube 28 to the dummy load valve 27, which is normally biased to cut-off but which conducts if the E.H.T. voltage rises, thus loading the line output transformer since its anode is connected to a tapping on the transformer. A resistor 44 compensates for the fact that the loading current flows only through part 24 of the transformer, it being impracticable to connect the valve 27 to the rectifier end of the winding. In a modification, Fig. 2 (not shown), the E.H.T. voltage is detected by amplifying a voltage tapped off a resistance divider across the output, the amplifier controlling the loading valve 27. In a further modification, Fig. 3 (not shown), the detector amplifier is biased to cut-off and is made operative only during the fly-back period by connecting its cathode to a further winding on the line output transformer. This is still further modified, Figs. 4 and 5 (not shown) to include a component of the receiver H.T. supply with the E.H.T. signal so as to compensate for variations in H.T. voltage. This H.T. component may alternatively be made to vary non-linearly either by using a non- linear resistance divider or, Fig. 7 (not shown), by using a bias voltage arising in the line scan generator circuit.
Patent GB-280421-A (GB)
Title: Improvements in or relating to fur-overseaming machines
IPC: D05B27/18
Filed: 1927-03-16
Abstract: 280,421. Allbook, H., and Hashfield, M. March 16, 1927. Overhead sewing - machines. - A machine of the scale-pan type for overseaming furs is provided with means for adjusting the looper bar comprising a back bearing mounted to oscillate about a vertically adjustable stem. The looper bar 9 is carried by a sleeve 11 supported by cranks 14 on a rocking shaft 12. The rear end of the bar is carried by at sleeve 16 from which projects a stem 22 housed in a bearing member 20 having a vertical stem 24 vertically adjustable in a bracket 26. The adjustment of the bearing member is effected by a screw stud 30 having collars 28. 29 which engage on either side of a pair of lugs 27 projecting from the bearing member. A set screw 35 locks the stud 30 in adjusted position.
Patent GB-609256-A (GB)
Title: Improvements in or relating to piston rings
IPC: F16J9/06
Filed: 1946-03-08
Abstract: 609,256. Piston rings. HUNT, W., and LEVER, C. March 8, 1946, No. 7379. [Class 122 (i)] A piston or like sealing ring, consists of a plurality of segments a having complementary overlapping ends so shaped as collectively to form a complete ring, each segment of which is capable of independent radial movement towards the cylinder wall f. Behind the stem b of each segment is located a spring e, mounted in a hole c provided in the piston, to urge the segment into contact with the cylinder. Alternatively, the segments have heads similar to the segments a but without stems.
Patent GB-1125654-A (GB)
Title: Mechanical control for an economizer in carburettors of internal combustion engines
Inventor: GOLOVNYA EUGENY GRIGORIEVICH
IPC: F02M7/133
Filed: 1966-02-21
Abstract: 1,125,654. Spray carburetters. ALTAISKY POLITEKHNICHESKY INSTITUT. Feb. 21, 1966, No. 7420/66. Heading F1B. An economiser valve in a carburetter is actuated from the throttle operating linkage 1 through a friction coupling 2 . . . 4 which slips after a predetermined movement in either direction. The spindle 1 has discs 2, 3, secured thereto and a friction disc 4 rotatable thereon, the disc 4 being connected to means for controlling the economiser valve. A projection 8 on the disc 4 co-operates with an adjustable abutment 12 when the economiser valve is closed. When the throttle valve is opened the disc 4 opens the economiser valve after a predetermined last motion. A projection 10 on the disc 3 engages the projection 8 near full throttle position to ensure positive movement of the disc 4 to open the economiser valve if the friction coupling should fail. In a modification Fig. 3 (not shown) the friction coupling comprises a rod (14) connected to a movable casing (13) by a spring- loaded plunger (15), the rod controlling the economiser valve (17) and the positive overriding action being provided by contact of the casing (13) with a plunger (18) on the rod.
Patent GB-674381-A (GB)
Title: A high-speed lathe for machining non-circular workpieces such as ingots
IPC: B23Q35/10
Filed: 1950-03-24
Abstract: 674,381. Lathes for turning non-circular work-pieces. SKODA WORKS, PLZEN, and REZLER, E. March 24, 1950 [March 25, 1949], No. 7443/50. Class 83 (iii). A lathe for machining non-circular workpieces such as ingots wherein the operational movements of a tool-support are imparted by a system of levers actuated by cams on a camshaft, has means for loading the cam-shaft with an additional torque which is always greater than any negative torque exerted by the camfollowers through the operating cams upon the cam-shaft. A self-contained electric motor drives through a change-speed gear-box a long torsion shaft 7. The latter drives, through toothed wheels 8, 9, a shaft 10 to which is slidably keyed a toothed wheel 11 adapted to move with the tool saddle in the longitudinal feed direction. The wheel 11 drives the toothed wheel 13 and cam-shaft 14, also carried by the saddle, and wheel 13 drives a further toothed wheel 15 which drives the shaft 16 and through belt gearing the main spindle 1 and the ingot 18. The middle cam 40 has a follower 43 pressed against the cam by a torsion-rod 41 and thus exerts a balancing effect on the cam-shaft when a change of force takes place on the cutting-tool 19. The latter is mounted in a lever rest 22 pivoting in the bearing 21 and under control of cam and lever mechanism 26, 25, 23, to move the tool so that it presents a constant cutting- angle to the work. The profiling movement of the cutter is obtained from cam 36 which moves a lever 33 against the underside of which is pressed a follower roller 34 carried by a lever 32 secured to the end of a rockable shaft 37 to which a bracket 29 for the tool rest is rigidly attached. The other end of shaft 37 is in the form of a torsion rod connected by linkage to a lever and roller follower contacting a further cam 39 which places the copying mechanism in a state of pre-tension to overcome the shocks caused by the change of cutting force.
Patent GB-579873-A (GB)
Title: Improvements in or relating to keying arrangements for radio frequencies
IPC: H01P1/12
Filed: 1944-04-21
Abstract: 579,873. Modulating apparatus; directive wireless systems. STANDARD . TELEPHONES & CABLES, Ltd., and WILLOUGHBY, E. O. April 21, 1944, No. 7479. [Class 40 (v)] A feed line is coupled alternately to two transmission lines by coupling-reactances, and screening means are provided to prevent adventitious coupling. The system is particularly intended for use in blind approach beacon systems for aircraft. The feed line T has its inner conductor connected to a channel-section block P2 and the respective transmission lines A1, A2 are similarly connected to blocks P1, P3. A rotary shaft S carries a circular disc D2 co-operating with the block P2, and two sectorshaped .complementary discs D1, D3 co-operating respectively with the blocks P1, P3, so that energy is alternately conveyed to the lines A1, A2 through the capacities formed by the blocks and discs. Adventitious coupling between the blocks is reduced by interposing screens S12, S23 between the blocks, thus dividing the con. tainer K into three compartments. The lines T, A1, A2, terminate in matching stubs M1, M2, M3 closed by adjustable short-circuiting discs. The shaft S runs in bearings at the end of tubular casings K1, K2 connected to the main casing K. The shaft forms with each casing K1, K2 a short coaxial line adjustable in length by shortcircuiting discs L1, L2. In a modified arrangement, the interposed screens S12, S23 are replaced by channel-shaped screens surrounding the blocks P1, P2, P3, Fig. 5 (not shown). Specifications 516,149 and 532,122 are referred to.