baber/WOPTO huggingface dataset:
Patent GB-1136373-A (GB)
Title: Semiconductor recombination radiation sources
Inventor: BRICE JOHN CHADWICK
IPC: H01L31/00
Filed: 1966-01-26
Abstract: 1,136,373. Electroluminescence. MULLARD Ltd. 26 Jan., 1966, No. 3480/66. Heading C4S. [Also in Division HI] In a recombination radiation source of gallium arsenide, at least in the region where recombination occurs, the number of killer centres in a level 0.17eV above the valence band is reduced to less than 10<SP>16</SP> cm.-<SP>3</SP> by including arsenic in excess of the stoichiometric amount. A typical diode is made from a slice-of gallium arsenide grown from a melt and doped with tellurium to N-type conductivity. The slice is heated at 1000‹ C. for 10 minutes in a vessel containing zinc and arsenic each at a vapour pressure of less than 1/ 10  atmos. to form a PN junction below the surface. After lapping and etching material from the B v  face and edges of the slice and subdividing, individual elements are placed N side down on - a nickel and gold plated molybdenum annulus the aperture of which is filled with a specified alloy of bismuth, tin and platinum. A bismuth silver mass is placed on the upper side of the slice and the assembly heated to bond it to the annulus. A plated molybdenum disc is then soldered to the upper side of the slice. Tinned copper wires attached to the molybdenum members are bonded to .wires extending through the header on which the assembly is mounted and the slice encapsulated in epoxy resin. In an alternative arrangement the PN junction is formed by epitaxial deposition of P(N) material on an N(P) wafer, or by diffusion into a high resistivity epitaxial layer on a low resistivity substrate. A source of the type specified can also be used as the emitter in combination with a photosensitive junction to form an opto-eleotronio transistor.
Patent GB-220273-A (GB)
Title: Improvements in joint bars for railway rails
IPC: E01B11/08
Filed: 1924-02-11
Abstract: 220,273. Groff, E. L. Aug. 11, 1923, [Convention date]. Rail joints.-Fishplates A are provided with thin web portions D standing clear of the rail web and leaving vertical enlargements E, at the boltholes, which may extend on both sides of the web D.
Patent GB-856443-A (GB)
Title: Aniline derivatives
IPC: C07C311/37
Filed: 1958-02-03
Abstract: The invention comprises disulphamoyl-anilines of the formula: <FORM:0856443/IV(b)/1> wherein R1 is halogen, e.g. Cl, Br or F, amino, nitro or C1-5 alkyl or alkoxy, R2 is hydrogen or a C1-5 alkyl radical, R3 is hydrogen, C1-5 alkyl, C1-12 alkanoyl, or a mononuclear aroyl radical or a mononuclear aralkanoyl or aralkenyl radical, containing not more than four carbon atoms in the alkanoyl or alkenoyl residue and R4 and R5 are hydrogen, C1-5 alkyl or C1-6 alkanoyl or form with the nitrogen atom a piperidino, pyrrolidino or morpholino ring, R3 and R3 both being C1-5 alkyl groups when R4 and R5 are both hydrogen; and sodium and potassium salts of those compounds of the above formula wherein R4 is hydrogen and R5 is hydrogen or an alkyl or alkanoyl radical.  The invention comprises also processes for preparing compounds of the above formula by treating the corresponding disulphonyl chlorides (obtainable by chlorosulphonating a substituted aniline) with ammonia or an amine NHR4R5 and if desired acylating the product to produce compounds wherein R3, R4 and R5 are acyl groups.  Compounds wherein R1 is an amino group may also be prepared by reducing the corresponding nitro compound.  Specified products include 5-chloro-2:4-di-(N-methyl-sulpha-moyl)-aniline and the corresponding N-formyl aniline : 2:4-di-(N-acetylsulphamoyl)-, (N:N-dimethylsulphamoyl)- and (piperidino-sulphonyl)-5-chloro-aniline; 5-butyl-2:4-di (N-n-butylsul-phamoyl)- N:N-lauroyl-propyl -aniline; 2:4-di(N:N - n - butyl-ethyl - sulphamoyl) - 5 - methyl - aniline; 2:4-di-(4-morpholinylsulphonyl)-5- propoxy - N-butyl-aniline and 2:4-di- (N:N-dimethylsulphamoyl)-5-propoxy-N-cinnamoyl-aniline. Specifications 826,921, 826,922 and 826,923 are referred to.ALSO:Pharmaceutical compositions having diuretic and natriuretic activity comprise compounds of the formula:  <FORM:0856443/VI/1> wherein R1 is halogen, e.g. Cl, Br or F, amino, nitro or C1-5 alkyl or alkoxy, R2 is hydrogen or a C1-5 alkyl radical, R3 is hydrogen, C1-5 alkyl, C1-12 alkanoyl, a mononuclear aroyl radical or a mononuclear aralkanoyl or aralkenoyl radical, containing not more than four carbon atoms in the alkanoyl or alkenoyl residue and R4 and R5 are hydrogen, C1-5 alkyl or C1-6 alkanoyl, or form with the nitrogen atom a pipenidino, pyrrolidino or morpholino ring, R2 and R3 both being C1-5 alkyl groups when R4 and R5 are both hydrogen, or sodium or potassium salts of those compounds wherein R4 is hydrogen and R5 is an alkaonyl or alkyl radical (see Group IV(b)); and a pharmaceutical carrier.  The composition may suitably take the form of an injectable solution or the compounds may be admixed with a solid carrier, suitably in the form of tablets.  An example describes tablets containing 5-chloro-2 : 4 - disulphamoylaniline. Specifications 826,921, 826,922 and 826,923 are referred to.
Patent GB-816940-A (GB)
Title: Improvements in vertically adjustable seats for vehicles
IPC: B60N2/16
Filed: 1958-02-03
Abstract: 816,940. Vehicle seats. ALTHOFF, R. Feb. 3, 1958, No. 3521/58. Class 52(2) A vertically adjustable folding vehicle seat has a vertically disposed fixed frame with rails 1 in which slides a supporting frame 5 with lugs 4 pivotally supporting a seat cushion 3, the frame 5 being suspended on springs 17 and carrying spring loaded sliding bolts 13 which can be made to selectively engage apertures 2 in rails 1 or be withdrawn therefrom by means of a handle 8 and toggles 10.
Patent GB-179268-A (GB)
Title: Power machine for the punching of metals
IPC: B21D28/00
Filed: 1921-01-31
Abstract: 179,268. Trice, T. Jan. 31, 1921. Punching.-The position of the stroke of the punch of a lever-operated punching-machine is made adjustable by mounting the lever on an adjustable eccentric pivot. The punch slide B is connected by links D to a lever C, which is pinned to a connecting-rod G, operated by an eccentric on the shaft J, which is driven by gearing K, L, N, O from the driving-shaft P. The lever C is pivoted on an eccentrically mounted pin F which is adjusted by a lever S.
Patent GB-716055-A (GB)
Title: Improvements in and relating to sound reproduction
Inventor: MOIR JAMES
IPC: H04R27/00
Filed: 1952-02-12
Abstract: 716,055. Public address systems. BRITISH THOMSON-HOUSTON CO., Ltd. Jan 1, 1953 [Feb. 12, 1952], No. 3692/52. Class 40 (4) In order to introduce a desired time lag into the sound reproduction, a microphone 1 is connected to a loudspeaker 3 coupled by a flexible tube 4, e.g. ¢ inch rubber hose, of length corresponding to the required delay, to a microphone 5 feeding one or more loudspeakers 6. An acoustic matching section 8 minimizes standing waves in the tube 4.
Patent GB-588395-A (GB)
Title: Improved electrical indicator system
IPC: H01K7/04
Filed: 1945-02-15
Abstract: 588,395. Incandescent lamps. AC-SPHINX SPARKING PLUG CO., Ltd., and BROWNE, D. B. Feb. 15, 1945, No. 3775. [Class 39 (ii)] [Also in Group XVIII] An indicator lamp comprises a filament in contact with a refractory material so that it will not glow on intermittent current. The filament is preferably coiled on a refractory cylinder of ceramic material with a substantial oxide content. An application to fluid-level indicators is described (see Group XVIII).
Patent GB-671667-A (GB)
Title: Improvements in or relating to transportable containers for powdered materials
IPC: B65D88/72
Filed: 1949-02-11
Abstract: 671,667. Pneumatic discharge from a container. AMALGAMATED ROADSTONE CORPORATION, Ltd., and GLENDINNING, S. A. Feb. 7, 1950. [Feb. 11, 1949] No..3775/49. Class 78 (i). A transportable container for powdered materials, of the kind provided with a porous wall or lining through which a pressure fluid can be admitted into the powder to aerate the powder, is sealed to the atmosphere to enable the pressure of air or gas to build up in the container to effect the discharge of the powder through a valve-controlled outlet against gravity. Fig. 1. Sealed container 10, having conical parts 11 and 12 and supply cover 22, is provided with a lining 19 of welded wire mesh covered by a sheet 20 of hard-pressed felt. Air is introduced at 21 and percolates through the material 23 in the container up to the space 24, the material being discharged by the air pressure up pipe 15 fixed at 16 and 17 to the container and with extension 13 acting as an automatic valve for the material. Fig. 2. The container has part 12 perforated and enclosed by chamber 30, air being supplied at 21 to aerate the material and at 37 to discharge it up pipe 15 under the control of valve 38. The perforated part 12 may be replaced by a layer of coarse concrete surmounted by a layer of finer concrete to act as a porous wall. The container may also have the extension 14 of Fig. 1.
Patent GB-1023560-A (GB)
Title: Improvements in or relating to mining machines
IPC: E21C27/02
Filed: 1965-01-29
Abstract: 1,023,560. Mineral-mining machines. GEB EICKOFF MASCHINENFABRIK U. EISENGIESSERI m.b.H. Jan. 29, 1965 [Feb. 1, 1964], No. 3931/65. Heading E1F. To allow of a mineral-mining machine to cut in both directions along a longwall face without changing the direction of travel of the machine along the face having to reverse the picks in the mounts on a cutter drum rotatable about a vertical axis the drum is so supported in the machine that it may be rotated about a horizontal axis when the change occurs.
Patent GB-392675-A (GB)
Title: Improvements in or connected with electric tumbler switches
IPC: H01H23/12
Filed: 1932-02-10
Abstract: 392,675. Tumbler switches. HAM, R. W. L. A., 11, Bracken Gardens, Barnes, London. Feb. 10, 1932, No. 3971. [Class 38 (v).] A tumbler switch has a U-shaped contactcarrying member 3 connected to a dolly 6 by a dead-centre tension spring 5. An insulating block 1, carried by the member 3, has a transverse rivet 8 forming a movable contact for engagement between fixed spring contacts on the base. An extension 1a on the block 1 passes between the fixed contacts to extinguish the arc when the switch is opened. The block 1 is of reduced form at its end 1b and has a groove 1c along the bottom to accommodate the base 3a of the rocker 3 to which it is secured by a bolt 4, formed at its upper end with an eye 4b for the attachment of the spring 5. In a modification the end 1b of the member 1 is grooved at the sides as well as the bottom to engage the member 3, and may be attached by transverse bolts.
Patent GB-144983-A (GB)
Title: Improvements in or relating to weighing machines
IPC: G01G23/00
Filed: 1919-08-08
Abstract: 144,983. Hill, F. A. Aug. 8, 1919. Spring balances. - In a spring weighing - machine wherein the platform is supported from a plate 1 suspended on springs 2, damage resulting from the application of an excessive load is prevented by means of an adjustable stud 6 which engages the top of a slot 4 in the plate. The stud may be carried by the plate, the slot being provided in a fixed part of the machine. Specifications 144,226 and 146,556 are referred to.
Patent GB-707433-A (GB)
Title: Improvements relating to springs of rubberised fabric in strip form adapted to be stressed in tension
IPC: B29C70/68
Filed: 1952-02-15
Abstract: 707,433. Spring surfaces. REGGIANI, P. Feb. 15, 1952 [Feb. 16, 1951], No. 4141/52. Drawings to Specification. Class 52(4) [Also in Groups VIII and XXV] Strip material to form spring webs for the support of pads, cushions, or upholstery parts in general for chairs, settees and like furniture, or for formation of a supporting surface of a seat, back, or other part of such furniture, constituted bv an essemblage of such spring webs suitably disposed to form the surface, is manufactured in continuous lengths by impregnating in the flat a sheet of square-woven textile, e.g. rayon or cotton, fabric with an unvulcanized rubber or synthetic rubber compound, e.g. by friction calendering, cutting the impregnated sheet into strips on the bias, joining the strips end to end, preferably by overlapping the ends and covering the overlaps on each side with a covering strip of unvulcanized sheet rubber compound, and vulcanizing the continuous length of joined strips. The impregnated fabric prior to cutting into strips may be sandwiched between two covering layers of unvulcanized sheet rubber compound. Two or more continuous lengths of resilient strip material, with or without the two covering layers, may be superimposed upon one another and united to form a plural layer strip. The fabric may be 1 mm. thick and the two covering layers ¢ mm. thick each. To increase the resilience, the strip may be cut through the thickness or perforated.
Patent GB-854395-A (GB)
Title: A process for the manufacture of (5,6-dimethyl-benzimidazole)-cobalamine
IPC: A23K20/174
Filed: 1959-02-06
Abstract: 5,6-Dimethyl-benzimidazole cobalamine is obtained in a process which comprises subjecting a nucleotide-containing cobalamine the nucleotide portion of which contains a purine base or a benzimidazole base other than 5, 6-dimethylpropionic acid to the action of a growing propionic acid bacterium in a culture medium in the presence of 5, 6-dimethyl-benzimidazole.  Suitably as microorganisms Propionibacterium shermanii may be employed. Starting materials mentioned are mixtures comprising (5-hydroxy-benzimidazole)- cobalamine and purine cobalamines and also anaerobically digested sludge.  Examples employ various nucleotide-containing cobalamines as starting materials. Specifications 745,504 and 767,630 are referred to.ALSO:A feed additive comprises the bacterial mass obtained by subjecting a nucleotide-containing cobalamine the nucleotide portion of which contains a purine base or a nenzimidazole base other than 5, 6-dimethylbenzimidazole, e.g. from anaerobically digested sludge, to the action of a growing propionic acid bacterium in the presence of 5, 6-dimethylbenzimidazole in a culture medium.  As propionic acid bacterium there may be used Propioni-bacterium shermanii.  The product may be added to soya meal, bran &c. to obtain the desired vitamin B12 content. Specifications 745,504 and 767,630 are referred to.
Patent GB-923329-A (GB)
Title: Improvements in apparatus for placing aerial telephone cables and messengers
IPC: H02G1/04
Filed: 1961-02-03
Abstract: 923,329. Erecting cables. J. M. EITEL. Feb. 3, 1961 [Feb. 19, 1960], No. 4231/61. Class 36. Apparatus for erecting an overhead cable or messenger wire comprises a vehicle having mounted thereon a manoeuvrable boom carrying cable guiding means and, mounted forward of the boom mounting, a cabledrum support. In a first embodiment the cable-drum 69 is mounted in front of the vehicle 11 on hydraulically raised arms 27 and the cable 71 is led over guides 56 and 23, the boom 21 carrying a cradle 22 for the erector. In alternative embodiments, the drum 69 is mounted between the driving cab and the boom and may be arranged transversely of the vehicle axis or at right angles thereto. Hydraulic lifting means or a chain hoist are provided for raising the drums and in all cases two or more drums may be carried simultaneously. The forward cable-guide 56 is arranged to slide transversely and to rotate in a bearing 52, so as to follow the cable 71 as it unwinds from the drum 69.
Patent GB-1037053-A (GB)
Title: Fungicides
Inventor: FOX HENRY MORRIS
IPC: A01N47/26
Filed: 1962-02-05
Abstract: N,N1-bis(dimethylamino)thiuram disulphide is prepared by reacting N,N1-bis(dimethyl)-hydrazine with carbon disulphide and treating the product with ammonium persulphate in alkaline solution.ALSO:Fungicidal compositions comprising N1N1-bis (dimethylamino) thiuramdisulphide and a solid or liquid diluent are used, to protect seeds against fungal attack.  Specified formulations are dusts, solutions or suspensions which may contain a wetting agent.
Patent GB-339545-A (GB)
Title: Carburettors for internal-combustion engines
IPC: F02M1/00
Filed: 1930-02-08
Abstract: 339,545. Holley, G. M., (Assignee of Beard, B.). Feb. 11, 1929, [Convention date]. Lever-actuated pumps.-In carburettors having a throttle-actuated pump to supply fuel when the throttle is opened rapidly to accelerate, the movable element of the pump is moved in the forcing direction by one spring, and in the return direction by another spring independent of the first, or of any spring for closing the throttle. The throttle spindle 30, Fig. 2, carries a crank 31 connected through a link 32 to a lever 33 pivoted at one end. 'The free end 35 of the lever is adapted, when the throttle is opened, to press upon a cap 40, which through a spring 43, forces down the piston 37 of the accelerating pump, which piston has a check valve 38 The piston is connected by a rod 39 to the cap 40 which is returned by a spring 41 stronger than the spring 43. The outlet 44 from the pump barrel is at 44.
Patent GB-114160-A (GB)
Title: Improvements in or relating to Circular or like Weaving Looms.
Inventor: CRESPI SILVIO BENIGNO
IPC: D03D37/00
Filed: 1918-03-12
Abstract: 114,160. Crespi, S. B. March 12, 1917. [Convention date]. Circular looms.-In a loom having one or more magnetically-driven shuttles running in an endless path, the shuttles run on a fixed circular reed and each has a weft-guide which inserts the weft between the warps and presses it home, thus obviating the use of a beating-up reed. The warps are drawn positively or otherwise from beams 2, Fig. 3, arranged around the bottom of a frame 1, and pass through a stationary circular guide-reed 25 and a similar reed 18 on which the shuttles travel. Within and above the reed 18 are inclined circular guards 16, 17 of non-magnetic metal and arranged as shown, and metal sheets 19 extend upwards from the guard 17 and gradually pass from a circular to a polygonal form in cross-section, the cloth passing up over the sheets 19 to the take-up rollers 20 and being cut longitudinally by razor blades &c. into a predetermined number of longitudinal pieces during its travel. Each shuttle 26, Fig. 4, is of metal, is curved in plan, and contains a cop 21, from which the weft passes to the front and thence to a projecting channelled blade 22, which serves to guide the weft and press it home at the fell. The shuttles are drawn around the reed 18 by the attraction of electro-magnets 6 mounted on a rack ring 5 free to revolve on rollers or balls in an annular box 11. The rack 13 on the ring is engaged by a toothed wheel 12 on a shaft 4 driven from an electromotor 3, or a belt pulley &c. Electric current is supplied to the magnets through brushes 14 and contact rings 15. A vertical shaft 7 is driven by bevel-gearing from the shaft 4 and drives a take-up motion for each longitudinal piece through worm and chain gearing. The healds 9 are stretched between curved frames arranged in a circle and are actuated through ropes by ecentrics 8 on the shaft 7 and by pulleys and springs or weights so that a shed is opened in front of each shuttle and closed behind it, levers 23 being used to magnify or reduce the movements imparted by the eccentrics. The shedding may be arranged to produce longitudinal selvedges at the parts to be cut. According to the Specification as open to inspection under Sect. 91 (3) (a), the shuttle may otherwise be actuated by causing a magnetic flux to rotate in a stationary circular " armature " by rotating the current intake by means of a collector to which the ends of the windings are led; or the shuttle may be a sort of small locomotive with internal driving-means; also the weaving may proceed from the top downwards or horizontally. This subject-matter does not appear in the Specification as accepted.
Patent GB-433146-A (GB)
Title: Improvements in or relating to yarn winding machines and slub-catching attachments therefor
IPC: B65H63/06
Filed: 1934-02-09
Abstract: 433,146. Yarn clearers. BREWIN, A., 79, Newfields Avenue, Braunstone, and WILDT & CO., Ltd., Adelaide Works, both in Leicester. Feb. 9, 1934, No. 4406. [Class 120 (ii)] In a slub catcher for a yarn-winding machine of the kind comprising a movable yarn feeler which is normally positioned to engage the running yarn and is operatively connected to a cutter which is actuated to sever the yarn by a movement of the feeler produced by the engagement thereof by a slub, part of the feeler forms one edge of a slot affording a gauge for the yarn and is movable in a direction transverse to the run of the yarn. As shown the feeler 30 is pivoted by a pin 34 at the back of a plate 10 and has a stud 27 projecting through a slot 26 in the plate to engage the arm 22 of a bell-crank lever pivoted by a pin 24 at the front of the plate and having its other arm 23 formed as a catch and normally forced by a spring 28 into engagement with a notch 25 in the cutter 16 pivoted to an inclined plate 12 on the front of the plate 10, which has a V-notch 11, by a pin 18. The cutter is disposed with its cutting edge 19 facing the cutting edge 15 of the plate 12 and when the arm 23 is released from the notch in the cutter by a slub moving the feeler 30, the cutter is moved across the notch 11 to sever the yarn by a spring 20. The yarn passes between the edge of the feeler and the edge of a plate 31 laterally movable on the back of the plate 10 to adjust the yarn gauge and carrying a rod or the like 29 over which the yarn moves. The cutting edge 15 may be dispensed with or both cutting elements may be movable.
Patent GB-578120-A (GB)
Title: Improvements in or relating to power plants for aircraft
IPC: F02K3/12
Filed: 1942-04-02
Abstract: 578,120. Gas turbines. BRISTOL AEROPLANE CO., Ltd., OWNER, F. M., EVANS, F. G., FORTESCUE, P., and COOPER, J. L. B. April 2, 1942, No. 4441. [Class 110 (iii)] [Also in Group XXXIII] An aircraft is equipped with an I.C. engine 11 driving an airscrew and a jet-propulsion unit 12. These operate as independent sources of power when the aircraft is flying below a certain altitude and, above that altitude, the turbocompressor of the jet-propulsion unit is energised by the exhaust gases of the I.C. engine and is used to supercharge it. The I.C. engine control-lever 17 operates the throttle 20. The jet unit control-lever 21 controls the loading of a governor 23 which through a relay 24 controls the fuel valve 26. In the condition shown, the jet unit is acting as a supercharger. The air inlet for the I.C., engine 35 is closed by a valve 37 which has opened a duct 31 leading from the jet unit compressor. The normal exhaust 39 for the I.C. engine is closed by a valve 43 which opens a duct 41 by which the exhaust is led to the combustion chambers 14 of the jet unit. Linkage from the valve 43 causes a dash-pot 69 to close an overriding fuel valve 65 so that, as shown, the jet unit is regulated from the governor 23 by means of an I.C. exhaust escape valve 63. The change-over is effected by a control lever 44 which is interlocked with the levers 17, 21 so that it can be moved only when the latter are in appropriate positions. In the first part of its movement, because of lostmotion at 25 the lever 21 only moves the jet unit air scoop 60 into the full line position.