baber/WOPTO huggingface dataset:
Patent GB-559863-A (GB)
Title: Improvements in and relating to electromagnetic cut-outs and relays
IPC: H01H50/36
Filed: 1942-08-04
Abstract: 559,863. Electromagnetic switches. ULTRA ELECTRIC, Ltd., and HASSAN, F. Aug. 4, 1942, ' Nos. 10865 and 14910. [Class 38 (v] An electromagnetic switch with contacts g<SP>1</SP>, g<SP>2</SP> arranged between poles d<SP>1</SP>, d<SP>2</SP> and a rectilinearly moving armature c bridging the poles is adjusted to operate at a desired current value by moving a shunt or other member forming part of the magnetic circuit. In the form shown, the flux between the pole pieces d<SP>1</SP>, d<SP>2</SP> and the armature c is shunted to a variable degree by adjustable polar extensions f. The armature c is supported by strips e, e<SP>1</SP> shaped to provide flexibility. In a modification, the adjustable magnetic member consists of an iron plug which is inserted a varying amount into a hole in the magnetic frame.
Patent GB-130005-A (GB)
Title: Improvements in or relating to Shield Tunnelling Machines.
Inventor: WHITAKER DOUGLAS
IPC: E21D9/11
Filed: 1917-07-28
Abstract: 130,005. Whitaker, D., and Baxter, H. C. July 28, 1917. Tunnelling by boring.-In a tunnelling - machine in which the cutter head is mounted so as to be capable of movement transversely to its axis so as to change the direction of its advance, the cutter head, driving-shaft, motor, gearing, and associated parts are carried by a structure which, at or near its rear end, is supported by a gimbal mounting and, at or near its front end, is held in position by devices capable of adjustment to displace the cutting-head. In the form shown in Fig. 1, the machine frame 4 has wheels 5 and runners 6 by which it advances along the lining 7 which is erected below the shield 8. The cutter head 2, its driving-shaft 3, the motor 9, gearing 10, 11, &c. are carried by a longitudinal structure 12 which is supported at the rear end by a gimbal ring 13 and at the other end by vertical and horizontal screws 18, 19, whereby the adjustment of the cutter head is effected. In place of the vertical screws 18, the structure 12 may be suspended from a link 21, Fig. 4, which is adjusted by means of a bell-crank lever 22 operated by a screw 27. In machines employing a cylindrical shield, the structure 12 may be similarly mounted within the shield.
Patent GB-510477-A (GB)
Title: Improvements in or relating to throttle or regulating valve apparatus for locomotives
IPC: F01B25/00
Filed: 1938-04-09
Abstract: 510,477. Locomotive regulators. GASS, E. M. April 9, 1938, No. 10892. [Class 135] A multiple-valve locomotive regulator has the valves operated by the rotary movement of a rod which enters the valve housing through the duct which connects the housing with the steam space of the boiler. The rod extends through the interior of the barrel of the boiler to the driver's cab, where it is operatively associated with the regulator lever for angular operation about its axis. In the form shown in the Figure a pair of double beat valves 7 is arranged on each sideof the rod 9, but these may be. replaced by single beat valves fitted with balancing pistons controlled by a pilot valve. The rod 9 which turns in a bearing in detachable cover in the valve housing has a slotted arm 10 engaging pins on a crosshead 11 secured to four rods 16. These rods, which are grooved to form a labyrinth packing where they pass through bosses 17, are secured to slotted cam plates 8 steadied by spindles 18 engaging sockets 19 in removable covers 20 and are formed with inclined cam surfaces cooperating with rollers 15 carried by the valve spindles. All the inclines may be identical so that all the valves lift together or they may be arranged to lift the valves successively. The cams may be designed to close the valves positively as well as open them. The cams may be replaced by arms or fingers on a rock-shaft or rock-shafts.
Patent GB-309408-A (GB)
Title: Partitions for separating the electrolytic products in the fusion electrolysis of chlorides, particularly of magnesium
IPC: C25C7/00
Filed: 1928-04-27
Abstract: 309,408. I. G. Farbenindustrie Akt.- Ges. Dec. 23, 1927, [Convention date] Electrolytic furnaces.-A partition for separating the electrolytic products in the fusion electrolysis of chlorides, particularly of magnesium, comprises a plurality of wedge-shaped plates b of ceramic material, such as porcelain, and built up in the manner of an arch. The plates are provided with tongued and grooved edges and are jointed with a refractory mortar. The partition was described in Specification 302,881 as open to public inspection under Sect. 91 (3) (a). The Specification as open to inspection under Sect. 91 (3) (a) states that the faces only of the plates need be of ceramic material. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1145392-A (GB)
Title: Improvements in semi-conductor rectifiers
Inventor: BRADLEY ROGER
IPC: H01L29/06
Filed: 1967-03-08
Abstract: 1,145,392. Semi-conductor devices. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 14 Feb., 1968 [8 March, 1967], No. 10932/67. Heading H1K. In a rectifier comprising a semi-conductor wafer which includes a PN junction and a junction between one of the zones and an N + or P + terminal zone with both junctions extending parallel to the wafer faces the wafer edges are doubly bevelled so that the included angle α (Fig. 3) between the bevelled surface and the NN+ junction is less than angle # between the PN junction and the surface. The bevelling increases the reverse breakdown voltage by reducing the electrical stress at the junctions and increasing the surface leakage path. Angle # is preferably 50 degrees and α less than 3 degrees.
Patent GB-1192133-A (GB)
Title: Bonding Electrically Conductive Metals to Insulators
IPC: H01L23/29
Filed: 1968-03-06
Abstract: 1,192,133. Joining metal and ceramic. P. R. MALLORY & CO. Inc. 6 March, 1968 [6 March, 1967], No. 10956/68. Addition to 1,138,401. Heading B3V. [Also in Division C1] In the method of Specification 1,138,401 for bonding an insulator to metal, the potential distribution characteristic of the insulator is predetermined and the potential is applied with the polarity oriented in accordance therewith to bond the insulator to the metal.
Patent GB-358948-A (GB)
Title: Liquid clarifying agent and process for making and using the same
IPC: C02F1/52
Filed: 1930-04-07
Abstract: Alumina peptized in a solution of a salt having a weak positive radical and a strong negative radical is used as a coagulant for clarifying liquids, particularly water which has been previously treated by the lime-soda softening process.  Ferric chloride and cupric chloride are mentioned as suitable salts for the solution.
Patent GB-999646-A (GB)
Title: Process for the dyeing of textile materials
Inventor: KERN RICHARD
IPC: D06P1/00
Filed: 1962-03-23
Abstract: Textile materials may be dyed by being charged with static electricity, bringing the charged material into contact with a dye in powder form so that the dye adheres to the substrate, and fixing the dye in the normal way by heat.  The process is particularly applicable to hydrophobic semi-synthetic or synthetic macromolecular textile materials, e.g. of cellulose-2 1\2 -or triacetate, acrylonitrile polymers, polyamides, polyesters, polyolefins or their blends with cotton. The charging may be brought about by friction e.g., by rotating rollers.  The surface of the textile material may be first brought to a pre-determined potential.  The dye powder may be applied by passing the charged textile into a chamber in which the powder is maintained in whirling motion, as by an air jet.  The dye may be fixed at 180 DEG C. to 210 DEG C. by infra-red radiation or at 100 DEG C. to 120 DEG C. by exposure to water vapour.
Patent GB-679258-A (GB)
Title: Improvements in or relating to cathode beam tubes and operating circuits therefor
IPC: H01J31/62
Filed: 1946-04-11
Abstract: 679,258. Cathode-ray tubes. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. April 11, 1946 [April 12, 1945], No. 11225/46. Class 39 (i). A two-beam cathode-ray tube of the electrical storage type has a target electrode comprising a sheet of insulation 14 bearing a number of conducting strips 15 of relatively high secondary electron emissivity and shield grids 16, 17 at each end of the target having prongs 18, 19 extending between the strips. The sheet 14 may be of mica and the strips 15 may. be of silver photographically deposited; the signal plate 20 at the back of the sheet 14 is connected to an external indicating device such as the oscilloscope 201. In Fig. 1, the two electron guns are shielded electrostatically by a central shield plate 22 and are designed to scan along the lines L, L<SP>1</SP> in Fig. 2. The upper gun is used to scan at one frequency, e.g. 400 cycles per sec., and is modulated by a signal such as a radar signal; this discharges the strips 15, secondary emission being inhibited by the shield 16 which is at a negative potential. The lower gun scans at a lower frequency, e.g. 2 cycles per second, and re-charges the strips by secondary emission thus capacitatively impressing a signal on the plate 20. The scan of oscilloscope 20<SP>1</SP> may be synchronized to the scan of the lower gun. Specification 577,068 is referred to.
Patent GB-183236-A (GB)
Title: Thread controlling device for sewing-machines
IPC: B65H59/36
Filed: 1921-04-19
Abstract: 183,236. Fairweather, W., (Singer Manufacturing Co.). April 19, 1921. Sewing - machines; governing needle-thread.-To prevent breakage of needle-thread, a yieldable threadguide is provided which is stronger than the tension device, and yields when there is an abnormal pull on the thread. A spring 15 surrounds a slotted rod 7, vertically fixed in the machine head 1, between an adjustably-fixed upper collar 16 and a sliding collar 14, which normally rests on shoulders 13 upset on a fixed collar 11. The thread T passes through the slotted rod 7 between the collars 11, 14.
Patent GB-580961-A (GB)
Title: Improvements in or relating to servo brake operating mechanism for vehicles
IPC: B60T13/10
Filed: 1943-07-12
Abstract: 580,961. Vehicle brakes. CLAYTON DEWANDRE CO., Ltd., and RODWAY, J. July 12, 1943, No. 11316. [Class 103 (i)] Vehicle brake mechanism comprises main and auxiliary servo devices for assisting the application of the same brake or brakes, one of which effects the operation of both servo devices, while the other effects the operation of only the auxiliary servo device, which is suitable for controlling small movements at slow speed, such as are incidental to parking the vehicle. As shown,' a main vacuum servo device 11 such as described in Specification 549,692, and the effort of which augments the pedal effort applied to the brakes and reacts upon the pedal, has the reaction lever mechanism 10 thereof connected to the pedal 2, piston 12<1> and brake shaft 7. An auxiliary servo-cylinder 18, the piston 20 of which is connected to the shaft 7, is arranged to be connected by an automatic change-over valve 23, 24 either to the main cylinder 12 or to a reaction valve device 32 controlled by a hand lever 1. The valve device 32 comprises a piston 35 connected to a lever 29 which is connected also to the hand lever and is pivoted at 31 to a lever 30 mounted on a fixed pivot 33 and connected by rod 4 to the shaft 7. The valve device 32 and -the operating mechanism therefor is described in Specification 578,314. The ]ever 29 has lost motion with respect to the pivot 33 and to a pin 34 on the lever 30. Operation of the piston 35 by the hand lever unseats a valve 36 from the end of the vacuum passage 37, thus establishing vacuum in the valve casing and through the valve 24 also in the cylinder 18 and which, acting on the piston 35, reacts on the hand lever and the shaft 7 through the levers 29, 30 and rod 4. When the pedal 2 is operated, the main servo device 11 becomes operative on the shaft 7 and the vacuum set up in cylinder 12 causes the valves 23, 24 to open and close respectively, thus connecting this cylinder to the cylinder 18, the piston 20 of which thus also applies an effort to the shaft. Compressed air servo devices may be used instead of vacuum devices. The connections of the rods 6, 22 to the shaft 7 are in practice spaced apart to a greater extent than is shown and the torsional load on the central part of the shaft is thus relatively light.
Patent GB-658030-A (GB)
Title: Locks
IPC: E05B67/00
Filed: 1949-04-28
Abstract: 658,030. Padlocks. STUE, T. B. April 28, 1949, No. 11318. [Class 44] In a padlock of the type having a flexible shackle, e.g. in the form of a ball-chain adapted to be received and locked in a guide channel or bore in the lock body, the outer wall of the bore 3 is provided with a longitudinal slot 5 for the passage of an operating member 6 attached to the end of the shackle chain 4 for the purpose of threading it through the bore.
Patent GB-783006-A (GB)
Title: Improvements in or relating to the production of metal chlorides
IPC: C22B34/12
Filed: 1955-04-19
Abstract: Metal chlorides are prepared by mixing bituminous coal with a metal bearing material such as oxide, carbide or nitride, tumbling the mixture at a temperature at which the coal becomes adhesive and partly carbonized, whereby to cause the mixture to form agglomerates, calcining the agglomerates and chlorinating the product.  In an example ilmenite was agglomerated with coal at a temperature in the range 250-600 DEG  C., calcined at a temperature in the range 750-1200 DEG  C., the agglomerates then being introduced into a shaft furnace into the bottom of which chlorine was introduced to effect chlorination at a temperature well above 500 DEG  C., e.g. 800-1200 DEG  C.  The chloride vapours were withdrawn from the furnace and condensed.  It is stated that when iron is present the chlorination may be made selective by limiting the amount of carbon.  Other materials specified are rutile, chromite and zirconium-containing materials.ALSO:Agglomerates of metal bearing material such as an oxide, carbide or nitride and bituminous coal are formed by tumbling a mixture of the components at a temperature at which the coal becomes adhesive and partly carbonized, e.g. in the range 250 DEG C.-600 DEG C., and calcining the agglomerates so formed to remove hydrocarbons.  The product is chlorinated to form metal chloride. Metal oxide or nitride should be mixed with sufficient coal to provide enough fixed carbon to reduce all the oxide or nitride to metal.  The metal bearing material may be ground to a particle size such that substantially the whole passes through a 200 mesh sieve and this material and the coal is preferably mixed with a previously carbonized mixture such as the fines resulting from lightly crushing a previously agglomerated product before calcining.  The treatment of titanium and zirconium containing materials is referred to.
Patent GB-1422650-A (GB)
Title: Azo dyes having 2,6-diaminopyridine derivatives as coupling components
IPC: C09B31/153
Filed: 1973-03-09
Abstract: 1422650 Amino-pyridines BADISCHE ANILIN- & SODA-FABRIK AG 9 March 1973 [10 March 1972 2 June 1972 21 Oct 1972 1 Dec 1972 2 Dec 1972 6 Dec 1972] 11408/73 Heading C2C [Also in Divisions C4-C5] Aminopyridines are prepared by condensation of 2,6-dichloropyridines with NH 3  or amines. In examples: 2,6-dichloro-3-cyano-4-methyl-pyridine is condensed with (1) aniline to give 2- anilino - 3 - cyano - 4 - methyl - 6 - chloro - pyridine and then (117) NH 3  gives 2-anilino-3-cyano- 4 - methyl - 6 - amino - pyridine; (345) as in (1) 2-phenylpropylamine yields 2-(2-phenylpropylamino) - 3 - cyano - 4 - methyl - 6 - chloropyridine; using appropriate components (684) 2-[6-hydroxy - 6 - methyl - heptyl - (2) - amino] - 3- cyano - 4 - methyl - 6 - chloro - pyridine and (1588) 2 - (2 - phenylpropylamino) - 3 - cyano- 4 - ethyl - 5 - chloropyridine are prepared. The presence of isomers is mentioned in Examples 684 and 1588.
Patent GB-114810-A (GB)
IPC: F26B21/08
Abstract: 114,810. Sadezky, L. C. Feb. 19, 1918. Drying air.-Air is treated with a spray of liquid air to separate the moisture so as to render it suitable as a drying agent. In the form of apparatus shown in the Figure, air forced into a conduit A by a fan B meets a spray of liquid air at C and then passes through chambers D, G in which the frozen moisture is deposited. The dried air may then be drawn over heated coils J'by a fan K.
Patent GB-275309-A (GB)
Title: Improvements relating to mine-winding and other kinds of ropes and cables, and to means for lubricating the same
IPC: B66B7/12
Filed: 1926-05-03
Abstract: 275,309. Jones, G. T., and Black, J. May 3, 1926. Wire ropes; strands of speciad section, with; lubricating. - Mine-winding and other similar wire ropes having internal passages adapted to receive lubrication have their ends arranged so that they are readily accessible and have attached thereto joint-sealing glands or clamps so that lubricant can be forced therein. As applied to. the end of a rope secured to a mine-winding drum shaft 11, Fig. 4, the clamp 6, which embodies a device for sealing the joint between the rope end 10 and the lubricant supply pipe, is arranged on the rope end in a space clear of the drum arms 13. The rope preferably has a core comprising four specially-shaped wires 2 which when placed together provide a cavity or lubricant channel 1; further lubricant channels 5 are provided between the covering strands 4 of the rope.
Patent GB-475855-A (GB)
Title: Improvements in or relating to ultra short wave radio aerial systems
IPC: H01Q21/10
Filed: 1937-04-22
Abstract: 475,855. Aerials. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. April 22, 1937, No. 11569. Convention date, April 22, 1936. [Class 40 (v)] A short-wave aerial comprises a number of coaxial dipole tubes, each a half-wave in length, through which runs a two-wire feed-line Sp connected alternately to the upper and lower members of adjacent sections. It is characterized by the feature that the feeder surge impedance is graduated from a maximum at the dipole nearest the transmitter or receiver to a minimum at the other end. The arrangement gives equal current loadings in all the dipole tubes. To secure this result, the feed-lines are spaced more widely from each other at the bottom .than at the top ; the surge impedance then decreases with distance from the transmitter or receiver. The metal dipoles are mechanically connected together by suitable insulators, or they may be drawn over a continuous ceramic tube. Or they may be constituted by silver layers formed on a long ceramic tube. By varying the phase-relation of the dipoles, a mushroom - shaped radiation field is obtained.
Patent GB-1069233-A (GB)
Title: Means for stabilizing television deflection circuits
IPC: H04N3/223
Filed: 1966-03-16
Abstract: 1,069,233. Sawtooth generating circuit. RADIO CORPORATION OF AMERICA. March 16, 1966 [April 12, 1965]. No. 11620/66. Heading H3P. In a deflection circuit for a television receiver, the amplitude of line and field deflection is stabilized against variations in supply voltage by rectifying the line flyback voltage in a voltage dependent resistor (VDR) 57 and using the rectified voltage to control the bias on the line deflection output stage 21 and the field output stage 25. The circuit is arranged so that the average anode current of tube 25 is independent of the supply voltage, further control being provided by feeding the anode of the field oscillator valve 24 from the boosted HT supply. As described, resistors 34, 35, 41 respectively form the vertical hold, height and linearity adjustments, the linearizing circuit including components 27, 38, 39 and 40. The amplitude-stabilizing bias for tube 25 is derived by rectifying the line flyback pulses with the aid of VDR 57 and reducing the derived voltage by means of a potential divider 43.
Patent GB-1127513-A (GB)
Title: Cyclone separator
IPC: B04C5/12
Filed: 1967-03-13
Abstract: 1,127,513. Cyclone separators. BAHCO A.B. 13 March, 1967 [28 April, 1966], No. 11664/67. Heading B2P. A cyclone has a clean gas discharge central tube which is provided along its length with axial slots, each slot opening into an axially extending channel in the tube and the channels together forming the total cross-section of the tube. In Figs. 1 and 2, the central tube is made up of two arcuate sections 10 connected at their inner long edges over neck bearings 9 and secured at their lower ends in an opening in the bottom plate 11 of the cyclone. The outer long edges of the sections are cut obliquely so that the width of the slot tapers off towards a gas outlet 12. A tube 4 carrying a whirlproducing, conical vane ring 3 for the axially fed particle-laden gas is axially displaceable in the bearings 9 and carries scrapers 16 which protrude out through the slot openings and serve to clean the slots when moved up and down. The axial displacement of the tube 4 also regulates the flow of gas into the cyclone by adjusting the position of the vane ring 3 in the conical portion 2 of the cyclone. Openings 13 in the bottom plate 11 serve for the discharge of separated particles via channels 14 and outlet connecting pieces 15. In another embodiment, the particle-laden gas is fed through a tangential inlet 23, Fig. 4, and the clean gas is discharged through an upwardly extending slotted tube 24 which is formed of one single S-shaped section having oblique longitudinal edges. In a further embodiment, a central tube having four slots has an arcuate swastika-like cross-section.
Patent GB-494258-A (GB)
Title: Improvements in or relating to suction cleaners
IPC: A47L5/34
Filed: 1937-04-23
Abstract: 494,258. Vacuum cleaners. HOOVER, Ltd. April 23, 1937, No. 11711. Convention date, Sept. 28, 1936. [Class 8 (i)] Mechanism for adjusting the height of a vacuum cleaner nozzle in which the nozzle is first lowered on to the floor surface and then raised a distance depending on the relative position of the floor wheels and the nozzle when the latter is resting on the floor surface. A pedal K<2> is connected to a lever K fulcrumed at K<1> and having a forked end engaging a pin on a bell-crank H. A lever L carrying a pawl L2 is connected to the bell-crank H by a spring L1 and pivoted at H<4>. The pawl engages teeth F<2> on a lever F pivoted at F<1> and having a cam surface engaging an abutment G on the nozzle A. Depression of the pedal K<2> lowers the nozzle until the pawl L<2> engages an abutment and releases the lever F and allows the nozzle A to fall and rest on the floor surface. The pedal K<z> is raised by a spring K<3> and the pawl again engages the ratchet and the nozzle is raised. The nozzle is connected to the undercarriage by a knife edge D pressed into engagement with the recess B<2> by a spring. Specification 494,265 is referred to.