baber/WOPTO huggingface dataset:
Patent GB-451233-A (GB)
Title: Improvements in and relating to gas-blast electric switches
IPC: H01H33/70
Filed: 1935-02-01
Abstract: 451,233. Gas-blast switches. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. Feb. 1, 1935, No. 3324. Convention date, Feb. 1, 1934. [Class 38 (v)] In a gas - blast switch wherein the point of interruption is located within or in the vicinity of a nozzle b of insulating material through which compressed gas flows in a single direction during the interrupting operation, one of the contacts d is arranged to pass into the open through an extension of the nozzle during the separating movement, while the other contact a, which has a diameter greater than that of the narrowest part of the nozzle, remains in its original position or is only slightly movable therefrom. The contact a may be solid, as shown, or it may be hollow and serve as a passage for compressed air. The position of the contact a may be adjustable manually, or automatically in dependence on the value of the current to be interrupted. In the arrangement shown in Fig. 4, the contact a is in series with an electromagnet i and under short-circuit conditions is withdrawn by the amount s, which can be adjusted by means of screws m, from the narrowest part of the nozzle b in order to open the passage for a more powerful gas jet. The contacts a, d may be in parallel with main contacts, which are separated before the separation of the contacts a, d. The Specification as open to inspection under Sect. 91 describes also arrangements with metal nozzles in which fixed or adjustable throttle members are inserted in front of the constricted portion. This subject-matter does not appear in the Specification as accepted.
Patent GB-229846-A (GB)
Title: Improvements in or relating to the lead-covering of electric cables and the like by extrusion
IPC: B21C23/28
Filed: 1924-02-08
Abstract: 229,846. Henley's Telegraph Works Co., Ltd., W. T., and Judge, E. E. Feb. 8, 1924. Squirting. - An extrusion press for sheathing electric cable k or the like has its nose or point b' supported at its rear end within and by the container a which is adapted at s or s<1> for charging with molten lead. The nose b' and its holder b is carried by a flange c which is bolted to the rear end of the container and has four openings to allow passage of the members p of the forked plunger r. These members are bolted to a hydraulic piston o the cylinder n being connected by bars m to the container. An apertured extension t, Fig. 5, may be formed on the container so that the face of the plunger may be cleaned.
Patent GB-1154683-A (GB)
Title: Improvements relating to Hydraulic Pressure Accumulators.
Inventor: SUGIMURA KAZUO
IPC: F15B1/08
Filed: 1967-01-24
Abstract: 1,154,683. Hydraulic accumulators. K. SUGIMURA and N. SUGIMURA. Jan.24, 1967 [Feb.3, 1966], No.3420/67. Heading F1P. An hydraulic accumulator comprises a plurality of concentrically arranged deformable tubes 6-9 sealed at their ends between rigid, spaced apart, end members 2, 3 to form a control chamber 11 for pressure liquid and annular gas-filled chambers 12-14 between the tubes. The end members 2, 3 are held spaced apart by integral or rigidly connected stays 4. A port 5 for connecting a liquid pressure line to the chamber 11 is provided in one end member or both end members. The annular chambers 12-14 are preferably filled with air at atmospheric pressure.
Patent GB-607627-A (GB)
Title: Improvements in toasting forks
IPC: A47J37/06
Filed: 1946-02-04
Abstract: 607,627. Toasting-apparatus. FARMER, H. A., FLETCHER, W. A., HASE, E. A. J., and LAWRENCE, R. J. C. Feb. 4, 1946, No. 3489. [Class 28(i)] In a toasting fork wherein the jaws 1 can be opened and closed by a spring handle 3 through the intermediary of pivoted plates 2, sleeves 5 are provided on the handle 3 to engage projections 4 on the plates 2, so that the prongs 1 may if desired be raised from the depending position and be held in line with the handle.
Patent GB-970866-A (GB)
Title: Improvements in or relating to steel and to an electrode constructed of the steel
IPC: B23K35/04
Filed: 1961-01-30
Abstract: A steel and welding electrodes made from it contain in percentage by weight <TABS:0970866/C6-C7/1>
Patent GB-741237-A (GB)
Title: Solutions of alpha-chloroacylonitrile polymers
Inventor: DILKE MAX HENRY
IPC: C08J3/09
Filed: 1953-02-07
Abstract: Polymers of alpha-chloroacrylonitrile are dissolved in nitromethane. Polymers specified are the homopolymer and copolymers with vinyl acetate, vinyl and vinylidene chlorides, acrylic acid, ethyl acrylate, methyl methacrylate, dimethyl fumarate, maleic acid, styrene, isobutene, butadiene, and vinyl pyridine, the copolymers preferably containing at least 85 per cent of chloroacrylonitrile units.  Films and fibres may be prepared from the polymer solutions. Specification 741,239 is referred to.
Patent GB-176390-A (GB)
Title: Improvements in and relating to telegraphic and other electrical circuits for use with ionic tubes or valves
IPC: H03D1/16
Filed: 1920-11-05
Abstract: 176,390. Eccles, W. H. Nov. 5, 1920. Repeating and amplifying systems.-Relates to the use of current limiting devices, such as saturated thermionic tubes or in some cases mere choking coils, in the plate circuits of amplifying and detecting valves of thermionic type. By supplying the plate circuit of a detecting valve T, Fig. 1, through a saturated diode S, the current in the plate circuit of the valve T is maintained constant, and potential variations between the filament F and grid G affect an indicating instrument of voltage-operated type in a circuit A, B, A, P, or A, F. It is stated that by this arrangement relatively small anode currents can be used without loss of amplifying power, that a greater rectifying effect can be obtained, and that an adjustment for optimum rectification can be made without reducing the amplification. The point P may be adjusted on the battery E to the same normal potential as the point A, so that the instrument Z may be of a very sensitive type; or the instrument Z may be of the electrostatic type. A similar arrangement may be employed with an amplifying valve of the two-electrode type, in which the emission of electrons varies in accordance with variations of the filament heating- currents. Two three-electrode valves T1, T2, Fig. 2, may have their plate circuits supplied in series through the limiting-valve S, the grid circuit of the second valve being controlled by the magnified potential variations across the plate circuit of the first valve. It is stated that if g is the voltage factor of each of the tubes T1, T2 separately, the combination shown in Fig. 2 gives an amplifying effect represented by g (g + 2). In either of the last two arrangements a choking coil may be used in place of the saturated diode S.
Patent GB-423278-A (GB)
Title: Improvements in or relating to shaft couplings
IPC: F16D3/62
Filed: 1934-02-03
Abstract: 423,278. Yielding shaft-couplings. KREISSIG, E., 15, Aldehoffstrasse, Uerdingenon-Rhine, and RINGFEDER GES., Uerdingenon-Rhine, Germany. Feb. 3, 1934, No. 3626. [Class 80 (ii)] A yielding shaft-coupling comprises a steel spring band d, which is subjected entirely or almost entirely to a tangential compressive stress by the driving torque, acting through radial projections m on an outer member c and L on an inner member b, the resiliency of the coupling being due to the elastic shortening of the band under compression. The projections may, as shown, act on the band in both directions of drive, or they may extend over its full width and act only in one direction. The outer member c fits closely over the band d, which may have an initial bending stress, axial or radial undulations, or be in the form of a spiral or helix. Side-rims such as h may be provided on each member b, c, to prevent lateral yield of the band, which latter, by pressing on the outer member c, introduces a frictional damping effect. Several concentric bands may be used in series or parallel. The outer member c may have a rubber lining or oil-grooves k.
Patent GB-524696-A (GB)
Title: Manufacture of para-aminobenzaldehydes
Filed: 1939-02-03
Abstract: 524,696. Amino-benzaldehydes. I. G. FARBENINDUSTRIE AKT.-GES. Feb. 3, 1939, No. 3634. Convention date, Feb. 21, 1938. [Class 2 (iii)] p-Amino benzaldehydes are manufactured from secondary N-alkylanilines, the alkyl groups of which are branched, by reacting with formyl-N-methylaniline in the presence of phosphorus oxychloride. The products are dyestuff intermediates. In examples, N-(diisopropyl-methyl) aniline, 2-dimethyl-3-o-toluidine-butane, and α-tertiary-butyl-N-ethylaniline give the corresponding p-aminobenzaldehydes.
Patent GB-622907-A (GB)
Title: Improvements in systems for circulating cooling fluid through electrical apparatus
IPC: H01F27/12
Filed: 1945-02-14
Abstract: 622,907. Cooling systems for electric induction apparatus. BRITISH THOMSONHOUSTON CO., Ltd. Feb. 14, 1945, No. 3666. Convention date, Feb. 15, 1944. [Class 64(iii)] In electrical induction apparatus, e.g. transformers, having windings with cooling ducts within an enclosed casing filled with a dielectric fluid, e.g. oil, two fluid paths for circulation of the fluid are provided, one internal to the casing and one external, the latter being provided with cooling means, e.g. a heat exchanger for the fluid, the rate of flow through the paths being different and the internal circuit having a parallel return path accommodating the excess fluid due to the difference in rates of flow. An induction coil has windings 12, 13 surrounding winding legs 10, 11 and is provided with ducts 14, 15 for circulation of the oil in the container 20. An external path for the oil is provided through a cooler 23 and fan 26 while an internal path is provided by cylinders 16, 17 supported on a partition 18 closed at one end but open at the other to house a fan 30 which circulates the oil upwardly through apertures in the partition and then through the ducts 15. In a modification, the partition 18 extends horizontally right across the bottom of the chamber 20 and the fan is placed in an aperture formed therein.
Patent GB-1421171-A (GB)
Title: Centrifugal drying machines
IPC: D06F49/00
Filed: 1972-01-27
Abstract: 1421171 Brakes; machinery safety devices CREDA ELECTRIC Ltd 2 Jan 1973 [27 Jan 1972] 3841/72 Headings F2E and F2J A band brake for a centrifugal drying machine is applied by a spring 40 through a lever 26 which amplifies the force of the spring upon opening of a lid 16 of the machine, the driving motor of the drum 18 being de-energized through a switch 52. When the lid is closed a band 21 is normally spaced from the drum by a cable 34 engaging the lever 26 through a nipple 36, the cable being connected to a spring-loaded pin 44 normally spaced from the end of an arcuate slot 46. Upon opening the lid the pin 44 engages the end of the slot under the action of a spring 58, Fig. 1 (not shown), the spring 40 then pivoting lever 26 to apply the band 21 to the drum 18 and the switch 52 acting to de-energize the motor by movement of an arm 54 carried by the band 21 and provided with an adjusting screw 56 which bears on the switch operating member.
Patent GB-195045-A (GB)
Title: Improvements in or relating to brakes for motor vehicles
IPC: B60T1/06
Filed: 1923-02-08
Abstract: 195,045. Soc. Anon. des Anciens Etablissements Chenard et Walcker. March 18, 1922, [Convention date]. Axle structures.-The propeller shaft 2 carries a brake-drum 4, the brakeshoes 9 being carried by a disc 7 loosely mounted on the torque casing 1. The disc 7 is resiliently secured to a cross member 12 of the frame by means of a clamp and rubber blocks. Two flexible joints 6 are provided on the propeller shaft.
Patent GB-178052-A (GB)
Title: Improvements in and connected with apparatus for raising and lowering skylights and the like
IPC: E05F11/34
Filed: 1921-03-31
Abstract: 178,052. Schonfield, W. March 31, 1921. Pivoted - window opening and closing apparatus. - In apparatus for raising and lowering skylights &c, as described in Specifications 815/13 and 11952/14, the nut 15 that actuates the screwed rod 12 attached to the sash is pivoted to a bracket 17 on the frame and carries a bracket 18. The bracket 18 has a bevel 19 and operating-handle 21 and a second bevel gearing with the bevel 18 is slidably keyed to the rod 12. A long handle may be used for windows out of reach.
Patent GB-1180853-A (GB)
Title: New Reaction Products of Complex Metal Compounds of Azo Dyestuffs and Basic Dyestuffs and process for their manufacture
IPC: C09B11/02
Filed: 1968-01-25
Abstract: 1,180,853. Dye salts. CIBA Ltd. 25 Jan., 1968 [25 Jan., 1967], No. 3965/68. Heading C4P. The invention comprises crystalline dye salts formed from a basic dye and a complex metal compound of an azo dye free from sulphonic acid groups and also carboxylic acid groups not in o-position to an azo group and which contains a sulphonic acid-N-alkoxyalkylamide group. The metal complexes are preferably 2: 1 chromium or cobalt complexes, the dyes being o,o<SP>1</SP>-dihydroxy-, or o-hydroxy-o<SP>1</SP>-aminoazo dyes, the N-alkoxyalkyl group preferably containing at least 5 carbon atoms and the alkoxy part thereof 1 to 8 carbon atoms. Basic dyes used which are preferably free from sulphonic acid groups include xanthene, di- or tri-aryl methane, azo, thiazine, azine or oxazine dyes. They are prepared by addition at room temperature or with heating optionally in presence of an organic solvent, or by metallizing the azo dyestuff in presence of the basic dyestuff. They are used to dye or colour natural or synthetic resins, waxes, lacquers, plastic compositions of cellulose ethers or esters and for paper, polyamides and polyurethanes.
Patent GB-448096-A (GB)
Title: Improvements in the suspension of wheels of vehicles
IPC: B60G11/18
Filed: 1936-02-11
Abstract: 448,096. Vehicle spring-suspensions. PORSCHE GES., DR. ING.H.C. F., 24, Kronenstrasse, Stuttgart, Germany. Feb. 11, 1936, No. 4102. Convention date, Feb. 11, 1935. Addition to 385,812. [Class 108 (ii)] In the vehicle suspension described in the parent Specification in which the torsion springs are enclosed in a hollow transverse member to which the bearing casings for the link arms carrying the wheel are connected by flanges and bolts the bearing casing for the link member journal is provided with a cylindrical extension which is welded to the hollow member. As shown the bearing casing 23 is provided with a cylindrical extension 39 which is welded in the end of the transverse member 34 housing the torsion bar springs 29, 29<1>. The casing 23 is provided with two journals 16, 17 of which the latter is connected to the appropriate torsion spring, the journals forming part of or connected to the link members 12, 13. The journals 16, 17 are positioned axially by collar bearings 41, 42 with which collar abutments 43, 44, inserted in openings in the casing 23, engage. The journals 16, 17 are also provided with roller bearings 18<a>, 20a and bushes 19, 21 and the lower journal 16 is provided with a cross pin 53 adapted, by means of two extensions of the casing, to limit the amount of rotation or oscillation of the journals and consequently the wheel-carrying links 12, 13.
Patent GB-112206-A (GB)
Title: Improvements in or relating to Magneto-electric Machines.
Inventor: PLETSCHER OTTO
IPC: H02K21/30
Filed: 1917-03-21
Abstract: 112,206. Pletscher, O. March 21, 1917. Magneto - electric machines. - To produce a small compact machine, the field magnet comprises a number of pairs of permanent magnets 11, 12 arranged side by side within a brass cylinder 10; similar poles of each pair of magnets are connected by poleshoes 14 of minimum width in the radial direction, air gaps 13 being left between them. The machines may be used as generators for hand-lamps, for licycle and motor-car lighting, for the ignition of internal-combustion engines, or for telegraphy or telephony; they may also be used as motors.
Patent GB-347339-A (GB)
Title: Improvements relating to measuring apparatus for electric high potential circuits
IPC: G01R15/16
Filed: 1930-02-07
Abstract: 347,339. Transformers. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych. London, and MAYO, C. G., 17, Alexandra Road, Rugby. Feb. 7, 1930, No. 4205. [Class 38 (ii).] In an arrangement for measuring the voltage of a high-tension conductor 1, Fig. 1, by utilizing the partial voltage developed across a section 3 of a capacitance bushing 2, 3 through which the conductor passes, the potential transformer 5, 7 itself is constructed so as to provide the required reactance and thereby eliminate the usual separate reactance 6. The potential transformer has the primary and secondary windings 5, 7 arranged on the outer limbs of the core 9, Fig. 2, which has an intermediate limb 10 provided with an air gap for increasing the reactance.
Patent GB-1214167-A (GB)
Title: Square-rooting current-frequencing converter
IPC: H03K7/06
Filed: 1968-01-26
Abstract: 1,214,167. Square root circuits. SOC. NATIONALE DES PETROLES D'AQUITAINE. 26 Jan., 1968 [16 Feb., 1967], No. 4272/68. Heading G4G. A circuit producing impulse frequency proportional to the square root of an input signal comprises capacitor 2 linearly charged with time from input current at 1, across one input of differential amplifier 4 whose output controls servo-current generator 5 retroactively coupled to a second input of the amplifier to produce a current linearly varying with time in series with resistor 13 and capacitor 6, which is charged parabolically with time; the voltage across 6, 13 being compared in threshold trigger 9 with constant voltage at 12 to impulse at equality the blocking transistor elements 10, 11 to discharge capacitors 2, 6; after which the charging cycle repeats. An impulse train at 14 has frequency proportional to the square root of the input current and the time constant of 6, 13 equals the discharge time of element 11. The apparatus is applicable to fluid flow measurement wherein a differential pressure transducer produces voltage proportional to the square of the flow rate. A voltage/current converter may precede input 1.
Patent GB-1064405-A (GB)
Title: Improvements in and relating to electric capacitors
Inventor: LEVERMORE RONALD GEORGE
IPC: H01G4/32
Filed: 1965-02-01
Abstract: 1,064,405. Capacitors. TELEPHONE MANUFACTURING CO. Ltd. Jan. 20, 1966 [Feb. 1, 1965], No. 4334/65. Heading H1M. Sufficient of the outer synthetic resin dielectric strip of a wound capacitor is left unwound to wrap at least once round the capacitor body, lead wires are secured to the electrodes, a strip of material of greater axial width than the body is wrapped together with the unwound length of strip, round the body so that a cup is formed at each end and the cups are filled with hardenable resin which will bond to the lead wires and the cup material. The wider strip may be of polyethylene terephthalate and may function as a label bearing information about the capacitor if the outer dielectric strip is translucent. Alternatively, a label may be inserted between the unwound strip and the body prior to wrapping. The ends of the lead wires may be sent and brought out radially through holes made in the cups before the hardenable resin, e.g. an epoxy resin, is introduced.
Patent GB-1528413-A (GB)
Title: Production of white oils
IPC: C10G65/08
Filed: 1977-01-04
Abstract: 1528413 Production of white oils BRITISH PETROLEUM CO Ltd 4 Jan 1977 [4 Feb 1976] 04360/76 Heading CSE  White oils of DAB 7 quality are prepared by contacting an oil in the lubricating oil boiling range having a total aromatic and sulphur content of not more than 25% wt. with a first catalyst comprising nickel and/or cobalt sulphide and a Group VIa metal sulphide on a refractory support at a temperature of 320‹ C. to 380‹ C., a pressure of 100 to 240 bars gauge, a liquid hourly space velocity of 0À05 to 2 v/v/hr and a hydrogen treating rate of 170 to 1700 m<SP>3</SP>/m<SP>3</SP>, so as to produce an oil having a U.V. absorbance at 275 nanometres of less than 50, and contacting the intermediate product with a second catalyst comprising elemental nickel on sepiolite at a temperature of 100 to 350‹ C., a pressure of 70 to 240 bars gauge, a liquid hourly space velocity of 0À05 to 2 v/v/hr and a hydrogen treating rate of 100 to 1700 m<SP>3</SP>/m<SP>3</SP>, so as to give a product having a U.V. absorbance at 275 nanometres of less than 1À6. The first catalyst preferably comprises nickel and/or cobalt sulphide and molybdenum sulphide on alumina as support.
Patent GB-1170661-A (GB)
Title: An Improved Process for Converting an Alkylaromatic to the Corresponding Dealkylated Cycloparaffin
IPC: C07C7/148
Filed: 1967-01-30
Abstract: 1,170,661. Cycloparaffins. GULF RESEARCH & DEVELOPMENT CO. 30 Jan., 1967 [10 Feb., 1966], No. 4362/67. Heading C5E. Alkylaromatics are converted to corresponding cycloparaffins by thermally hydrodealkylating to produce an effluent containing gaseous dealkylated aromatic, and then subjecting said effluent, while said dealkylated aromatic is still gaseous, to hydrogenation conditions to produce an effluent containing dealkylated cycloparaffin. Suitable hydrodealkylation conditions are: preheat to 621-982‹ C., outlet temperature 677-1038‹ C., hydrogen: alkylaromatic ratio from 1.5: 1 to 20: 1, pressure 7-70 kg./sq. cm. gauge, residence time 1-400 seconds. Suitable hydrogenation conditions include: temperature 38-316‹ C., pressure 1À75-70 kg./sq. cm. gauge, and a catalyst comprising any of Ni, Co, Mo, W, Pt or Pd on a support of silica, alumina, silica-alumina, silica-magnesia, silicon carbide, clay or kieselguhr; nickel on kieselguhr being preferred. If the original feed contains sulphur, either as impurity or as added mercaptan to inhibit coke formation, the hydrodealkylation effluent can be treated for H 2 S removal, before hydrogenation, by passage through an absorber containing a metal which is sulphidable by H 2 S, e.g. Ni, Co, Fe, Mo or W supported on one of the catalyst supports listed above.
Patent GB-563317-A (GB)
Title: Pen nibs and method of making same
IPC: B43K1/00
Filed: 1943-03-18
Abstract: 563,317. Making pen nibs. SHEA, J. A. March 18, 1943, No. 4396. [Classes 83 (ii) and 83 (iv)] In making pen nibs from a strip of metal as described in Specification 549,849, an intermediate step is provided to smooth and harden the corners and edges of the part of the blank that forms the writing tip. Tumbling of the completed nibs is thus obviated. Two forms of blank are illustrated, the edge of the blank 13, Fig. 1 is rounded from 42 to 43 and of'the blank 13a, Fig. 9, from 37 to 38 and from 39 to 40. The operation is effected by dies 25, 26, Fig. 5, having shallow recesses 27, 28 and rounded fillets 30 with which the corners of the blank contact. According to the degree of pressure, the blank may be more or less rounded, yielding nibs that write finer or coarser lines respectively.