baber/WOPTO huggingface dataset:
Patent GB-864414-A (GB)
Title: Manufacture of steroid dehydrogenation products
IPC: C07J1/00
Filed: 1957-06-14
Abstract: In a process for the dehydrogenation of 3-oxo-steroids to D 1,4-3-oxo-steroids by means of a selenium compound having dehydrogenating action, the dehydrogenation is carried out in the presence of a metal of the second or eighth group of the Periodic System.  The process may be combined with one wherein the selenium containing fraction obtained after the separation of the D 1,4-3-oxo steroids is treated with nickel or iron and the so obtained 3-oxo-steroids which are completely or partially dehydrogenated in ring A or a mixture thereof are isolated and if desired again dehydrogenated as in the first step to yield the D 1,4-3-oxo-steroid.
Patent GB-189365-A (GB)
Abstract: 189,365. Western Electric Co., Ltd., (Western Electric Co., Inc.). Dec. 20, 1921. Automatic exchange systems.-A trunk line has means adapted to be connected in bridge of the conductors at the outgoing end upon release of the line thereat, and to be operated in series with means at the incoming end to cause the trunk to be held busy at the outgoing end until released at the incoming end. A call is extended through an automatic exchange X to a manual exchange Y over a trunk TL. When the calling subscriber hangs up his receiver, upon restoration of the selector E, the relay 4 de-energizes, releasing the switching relay 10, which connects the trunk conductors 7, 8 to the windings of relays 12, 13. The relay 12 energizes over the trunk circuit in series with a relay 22 at the manual exchange, maintaining energized a slow relay 6 and a relay 11, which connects earth to the test conductor 5. The energization of the relay 22 operates the supervisory lamp 23 to signal the operator, and upon withdrawal of the plug P<1> from the jack J<1>, a relay 15 releases, cutting out the relay 22, and establishing two currentless circuits, one with opposed batteries over the left-hand windings of relays 12, 13, trunk conductor 8 and the right-hand winding of a relay 14, the other over the right-hand windings of relays 12, 13, trunk conductor 7 and the left-hand winding of the relay 14, whereupon the relay 12 de-energizes, removing earth from the test conductor 5 by the release of the relays 6, 11. Should there be a substantial difference in ground potential between the ends of the trunk, the relay 12 may fail to release, and for this reason, there is provided the differential relay 13 which operates under such conditions, breaking the circuit of the relay 6 at another point. If the manual exchange operator disconnects first, the switching relay 10 being energized, the relay 14 is connected in series with a supervisory relay 63 at the automatic exchange, and upon release by the calling subscriber, the relays 12, 13 do not operate.
Patent GB-120299-A (GB)
Title: Improvements in connection with Candlesticks and Candle Holders.
Inventor: BEESLEY HORACE CECIL
IPC: F21V35/00
Filed: 1917-12-21
Abstract: 120,299. Beesley, H. C. Dec. 21, 1917. Candle holders and accessories; c a n d l e grease guards. - Melted wax running down the candle is collected in the socket or holder, and is burnt at wicks which are lighted by the candle when it burns down, the waste of grease and short candle ends being thereby obviated. As shown, the holder comprises a cup a provided with tubes b containing asbestos-wool wicks d, candle-supporting blades c, and a stem e, which may have springs f, for insertion in a candle-stick socket. - Alternatively, the candle-stick socket is formed as the wax-receiving cup.
Patent GB-1385309-A (GB)
Title: Apparatus for loading and unloading drums to and from treatment apparatus
IPC: B24B31/02
Filed: 1973-04-19
Abstract: 1385309 Tumbling DR ING MANFRID DREHER KG 19 April 1973 [19 April 1972] 19012/73 Heading B3D  Means for loading and unloading treatment product and drum medium into and out of a tumbling barrel 18 comprises a substantially horizontal bridge 56, 58 over which the drum can be fed from a drum arrangement 10 to a receiving apparatus 30 whereon the drum is rotatable above a screening apparatus 74 which separates the treated product from the drum medium, such as abrasive, vibrating apparatus 88 for vibrating the screening apparatus which is tiltable in order that the treated product remaining in the screening apparatus and separated from the drum medium may be conveyed out of the screening apparatus, a receiving vessel 96 for the drum medium arranged below the screening apparatus, and a lifting apparatus 106, 108 for guiding the vessel to an emptying position above the drum located in the receiving apparatus. During treatment, the drum 18 is supported by its wheels 20, 22 on rollers 16, 17, one of which is driven, in a frame, the rollers being of such a length that they can support and drive a plurality of drums. arranged end to end. The receiving apparatus 30 is supported by an arm 32 having rollers 38, 40 engaging rails 42, 44 on the frame whereby it can be moved along the frame and aligned with a drum to be unloaded and loaded. The drum is lifted by rollers 164 on levers 160 movable about pivots 152 by the rod 156 of a cylinder 158 so that the wheels 20, 22 of the drum are engaged with guide rails 56, 58 forming the bridge and the drum can be moved into the apparatus 30 with pivot pins 26, 28 extending from the ends of the drum engaging the inclined edges 70 of carrier plates 52, 54 having bearing boxes 62, 64 for locating the pivot pins.  A tank 74 having a base 78 in the form of a screen is supported beneath the drum by rollers 80 engaging guide rails 82, 84 of a frame 86. One end of the tank has a discharge channel 90 and the opposite end of the frame 86 can be raised by a piston-and-cylinder device 93, 94 for discharging the treated products retained on the screen. The tank is vibrated by apparatus 88 so that drum medium falls into the vessel 96, the base 98 and wall 100 of which are perforated so that fluid from the drum can be directed to a channel 102. The vessel is supported by pivots 118, 120 on arms 106, 108 secured to a shaft 110 having a sprocket 122. A chain 129 passes over the sprocket and wheels 124, 126, 128 and is secured to the rod 132 of a cylinder 130, operation of which causes movement of the vessel from a receiving position below the drum to a position above the drum for returning the drum medium to the drum. The vessel may be moved to an intermediate position wherein the product to be treated is placed in the vessel which is then moved to its upper position for loading the product into the drum.
Patent GB-850006-A (GB)
Title: Improvements in or relating to derivatives of nitrofuran
IPC: C07D407/12
Filed: 1959-06-03
Abstract: The invention comprises 1-(5-nitro-2-furfurylideneamino)-2-imidazolidenethione, the preparation thereof by reacting ethylene thiourea with an alkali metal nitrite in acid solution, reducing the nitroso compound so produced and thereafter reacting the reduction product with 5-nitro-2-furfuraldehyde, and pharmaceutical preparations and animal foodstuffs containing the compound (see Group VI).  The compound has anti-parasitic properties.ALSO:Pharmaceutical compositions and animal foodstuffs comprise 1-(5-nitro-2-furfurylideneamino)-2-imidazolidinethione with appropriate carriers.  Pharmaceutical preparations may be in the form of tablets, capsules and emulsions.
Patent GB-459445-A (GB)
Title: Improvements in nitration processes
IPC: C08B17/04
Filed: 1935-07-04
Abstract: <PICT:0459445/IV/1> In the manufacture of solid, including fibrous, nitro-compounds or nitric acid esters, the liquid used for the nitration or for precipitating or washing the nitrated product is separated from the solid product by using a continuously operating centrifuge in which there is no relative movement in the direction of rotation between those parts of the apparatus with which the product comes in contact during its passage therethrough.  By minimizing friction, the danger of explosion is reduced.  The process is applicable to continuous processes for the nitration of aromatic substances in which solid products are obtained such as m-dinitrobenzene, and o-chlornitrobenzene.  It is particularly applicable to the production of explosive products such as cellulose nitrate.  In an example, cotton linters, cellulose pulp, or other nitrifiable form of cellulose is subjected to nitration in any desired manner.  The nitrating mixture is run off, preferably through a vessel having a stirrer, in a constant stream, the speed of which may be controlled automatically by a flap valve moved by the centrifuge.  The mixture then passes into a continuously acting reciprocating centrifuge, the acid and nitrocellulose being separated continuously.  The product is washed in a stabilizing vessel.  The apparatus may be enclosed and maintained under reduced pressure, and the acid vapour may be conducted to a recovery plant.  The process may be combined with a continuous nitration process, e.g. the passage of a paper web through the nitrating acid.  As shown, the nitrated material is introduced through a pipe 4 into the dome-shaped hopper 6 of the centrifuge.  The basket 1 carries a piston 3 working in a cylinder mounted on the pusher member 2 whereby the basket is caused to reciprocate.  The basket and pusher member are mounted on a horizontal shaft and rotate at the same speed.  During the centrifuging operation the material which collects on the inner wall of the basket is moved intermittently towards the discharge end and into the pipe 5.  The process is continuous.  If desired, a similar apparatus could be used in which the pusher member reciprocates instead of the basket.
Patent GB-1205198-A (GB)
Title: Method of forming colour images on supports
IPC: G03C5/40
Filed: 1969-04-15
Abstract: 1,205,198. Colour proofing. CONTINENTAL CAN CO. Inc. April 15, 1969 [May 29, 1968], No. 19186/69. Heading G2C. Coloured images, particularly for colour proofing, are prepared by sequentially (1) exposing a gelatino silver halide emulsion on a transparent film base, (2) developing the exposed areas, (3) removing the developed areas by etch-bleaching, (4) fixing or stabilizing (e. g. with aqueous thiosulphate or K1 solution), and (5) colouring the non- etched areas (e. g. with a water-colour or dye).
Patent GB-375088-A (GB)
Title: Method of and apparatus for the supervision of uniform or synchronous running of films, particularly of sound films
IPC: G11B27/34
Filed: 1931-07-03
Abstract: 375,088. Supervising speed of sound films. MIHALY, D. VON, 13B, Hildegardstrasse, Wilmersdorf, Berlin. July 3, 1931, No. 19274. Convention date, July 3, 1930. [Class 40 (ii).] For supervising the running of a film such as a sound record film, in order to ensure uniformity of movement or synchronism with other apparatus, a light beam which varies at a rate corresponding to the required speed of the film is projected through perforations in the film. The perforations then appear to be stationary, only if the film is running at the correct speed. As shown, an " inertialess " source of light 2 is arranged so as to illuminate a short length of a row of perforations 3 in the film 1, the lamp being supplied with alternating current having a periodicity suitably related to the standard speed of the film, the current being taken from the mains, if suitable, or supplied by a valve generator, tuning-fork interrupter or the like. In another arrangement, a constant source of light may be used, and a diaphragm operated by alternating current is interposed between the lamp and the film. In order to synchronize the film with another apparatus, the lamp used is supplied with A.C. generated by means actuated by the second apparatus. The Specification as open to inspection under Sect. 91 (3) (a) describes and shows, in Fig. 2 (Cancelled), the use of a stroboscopic disc 5 which is driven by the film 1. The disc bears concentric rows of markings, the apparent movements of which are observed by illuminating the disc by means of a lamp 2 supplied with A.C. of the required periodicity. This subjectmatter does not appear in the Specification as accepted.
Patent GB-646435-A (GB)
Title: Improvements in or relating to stock feeding arrangements for paper making machines
IPC: D21F1/06
Filed: 1947-07-21
Abstract: 646,435. Feeding pulp to paper-making machines. BLACK-CLAWSON CO. July 21, 1947, No. 19452. Convention date, Aug. 26, 1940. [Class 96] Pulp is fed to the forming zone, e.g. the wire 10 of a paper-making machine through a flow-evener having two tapering conduits 22 and 23, Figs. 1 and 2, each communicating throughout its length with a slice passage 26, pulp being supplied to the wide end of each conduit as through a two-branch header 21. Each conduit may have a narrow outlet extending across the passage 26 and both outlets may merge together at the entrance to the passage which may be a slot 33 of variable width. The narrow end of at least one conduit may communicate with the other conduit, e.g. the wide end thereof, so that pulp can bleed from the narrow end to prevent choking there. The conduits 22 and 23 may be formed by fitting a partition 31 diagonally across a box without touching its sides. The slot 33 may be in the top of the box and the partition 31 may terminate just below the slot. Pulp pressure in the passage 26 may be kept at a desired value as by a valve 42, Fig. 1, in the pulp supply line 16 between a pump 15 and screens 18, the valve being actuated by a reversible electric motor 43 controlled, as regards its direction of rotation, by pressure changes in the passage 26. White water collecting in a tank 12 is fed to the pump 15 by a pipe 13, fresh pulp being introduced through a pipe 14.
Patent GB-1433044-A (GB)
Title: Disc brakes for vehicles
IPC: F16D65/095
Filed: 1973-04-24
Abstract: 1433044 Spot-type disc brakes GIRLING Ltd 9 April 1974 [24 April 1973] 19459/73 Heading F2E A stationary drag-taking member for use in a disc brake of the kind having a sliding caliper which staddles the disc and has actuating means housed in one limb for applying a directlyactuated friction pad assembly and applies an indirectly-actuated friction pad assembly by caliper reaction comprises a pair of circumferentially-spaced arms which form drag-taking guide means for the directly-actuated friction pad assembly, and the arms are interconnected by an integral bar disposed at one axial end of the member and forming the sole integral connection between the arms, the arms otherwise being unconnected, and the radial ends of the arms which are innermost when the member is in its position of use being separate from each other. Fig. 2 is an inverted plan view of Fig. 1 and Fig. 3 is a view from the right of Fig. 1. As shown, the drag-taking member 1 comprises a pair of circumferentially-spaced arms comprising arm portions 3, 4, each having a surface 6 or 7 forming guide means for the directly actuated friction pad assembly 8. At that side of the disc (not shown) where a fixed part 2 of the vehicle is provided, the radially innermost ends of the arm portions 3, 4, are provided with tapped holes 5 for connection to the fixed part 2 by bolts (not shown). The spaced arm portions 3, 4, also define separate guide means for the caliper 11. Each arm portion 3 or 4 has a connecting portion 17 or 18 extending over the peripheral edge of the disc and continuous with a radial portion 19 or 20, the radial portions 19 and 20 being interconnected by an integral bar 21. Bar 21 is remote from that limb 12 of the caliper which houses the actuating means. The indirectly-actuated friction pad assembly 22 is carried by the opposite limb 13 of the caliper. Preferably the drag-taking member comprises a one-piece casting or forging. In Figs. 5, 6 (not shown) the radial portions 19, 20 are omitted: instead, the arm portions 3, 4, are extended radially outwardly above caliper limb 12 (at 26), these extensions being interconnected by a bar (25).
Patent GB-926345-A (GB)
Title: Improvements in and relating to air intakes for jet propulsion engines
Inventor: ZETTERSTROM KERL AXEL
IPC: F02C7/042
Filed: 1961-05-30
Abstract: 926,345. Jet propulsion plant. SVENSKA FLYGMOTOR A.B. May 30, 1961, No. 19460/61. Class 110 (3). [Also in Group XXXIII] An air inlet for a jet propulsion engine has a centre body and inlet lips, rotatable about one or more axes, connected to means for adjusting them so that their longitudinal axes are parallel or nearly parallel with the direction of flow of the rammed air. In Fig. 2 a centre body 1 with inlet lips 21 fixed to it by vanes 20 rotates about a shaft 2 carried on an arm 14. Surrounding a part of the rear of the centre body 1 is a fixed wall 26 forming a diffuser 27 leading to a chamber 28 which has a perforated wall 29. Pressures extend on the centre body in the duct 27 and chamber 28 cause it to take up a position with its axis parallel to the flow. If the centre body is also rotatable about an axis perpendicular to the shaft 2 vanes 30 are put in the chamber 28 to prevent peripheral flow. The duct and chamber may alternatively be formed between a surrounding wall and the inner surface of the inlet lip and pressures exerted in the inlet lip adjust the centre body and lips. In Fig. 4 the pressure difference between static tappings 47, 48 controls a servo-mechanism that operates a jack 40 rotating the centre body 1 and inlet lips 21. The jack may be arranged to operate on the inlet lips instead of the centre body. The centre body and inlet lips may be arranged to rotate independently of one another.
Patent GB-647588-A (GB)
Title: Improvements in the extraction of vanadium and phosphorus from salt residues
IPC: C01G31/00
Filed: 1947-07-21
Abstract: Vanadium and phosphorus are extracted from mixed salts, which separate during the preparation of alumina, e.g. from bauxite, by the alkaline method, by treating with an acid until the pH is 7.5-8.5 when disodium phosphate is separated on cooling and vanadium is separated from the mother liquor.  Thus the mixed salts are washed and suspended, in wash water obtained subsequently, to form a viscous paste, which is steam heated to 30-40 DEG  C. and treated with sulphuric acid until the pH is 8. Disodium phosphate is crystallized from the resulting solution, after filtering at above 35 DEG  C., by cooling to 10 DEG  C.  The crystals are centrifuged, filtered and washed, these washings being used for dissolving further mixed salts. The mother liquor is, either treated with ammonium chloride until the pH is 7 when ammonium metavanadate is precipitated which may be roasted to vanadium pentoxide, or subjected to hydrolysis to obtain vanadium pentoxide.  It is stated in the Specification to be known to neutralize the mixed salts with sulphuric acid to pH about 3 in the presence of oxidizing agents such as permanganate, oxygenated water, or peroxides to obtain vanadium pentoxide by hydrolysis, or to treat saturated solutions of the salts with ammonium chloride to precipitate ammonium vanadate.
Patent GB-1445502-A (GB)
Title: Bore hole hammer drill
IPC: E21B21/16
Filed: 1974-05-03
Abstract: 1445502 Percussive drills BAKERDRILL Inc 3 May 1974 [10 Aug 1973] 19507/74 Heading B4C [Also in Division E1] A downhole percussion drill includes a hammer piston 20 engageable with an anvil section 18 of a bit C drivingly connected to the housing 14 by arcuate keys 28 located in windows 29 in a drive head 15 threaded into the housing. The piston slidably receives an exhaust tube 54 and a supply and valve tube 78, these tubes being of Delrin (Registered Trade Mark) and being secured in the anvil and in a top sub 11  by snap-fitting flanges 57, 80. With the bit in contact with the bottom of the borehole, as the piston impacts against the anvil at 100, air delivered into the tube 78 via check valve 70 can pass out of ports 91 and flow down around the tube to passages 95 opening at the underside of the piston, and since air in the space above the piston is free to pass to the bit via the passages 44 around the piston, ports 51 and exhaust tube 54 the piston is driven upwards and its upper external land 37 eventually enters bore 30 to shut off the exhaust path from the space above the piston. The upward movement of the piston also causes its lower internal land 85 to engage land 93 on tube 78 to shut off the supply of air to the space below the piston, and the upper internal land 82 of the piston clears the land 98 of tube 78 so that air from the tube can pass to the space above the piston, the lower external land 40 of the piston eventually clearing shoulder 33 of the housing so that the piston is driven downwards to impact against the anvil, the cycle then repeating. When the drill string is picked up, the bit drops until shoulders 110 on the anvil abut the keys 28, and in this position of the bit the slots accommodating the keys provide a by-pass path across sealing section 66 of the drive head 15, the piston simultaneously dropping so that its land 40 clears shoulder 35 in the housing while its land 82 engages land 93 of tube 78, whereby air is routed to the space above the piston but is exhausted therefrom via the passages around the piston and the anvil as well as via the passages 53-56 in the anvil, thus providing a desired high volume flushing flow. With the bit and the piston in their extreme lower positions, the land 85 of the piston engages land 88a of tube 78 to cut off the supply of air to passages 95 to provide additional assurance against reciprocation of the piston while the bit is clear of the bottom of the hole.
Patent GB-1503000-A (GB)
Title: Chromium complex dyes their manufacture and use
IPC: C09B45/48
Filed: 1975-05-08
Abstract: 1503000 Chromium complex dyes containing azo and azomethine groups CIBA-GEIGY AG 8 May 1975 [9 May 1974] 19519/75 Heading C4P Novel dyes of the formula wherein A is the radical of a diazo component of the benzene or naphthalene class which carries the complex forming group X (which is O or CO.O) in ortho position to the azo group; B is the radical of a coupling component which couples in ortho position to the oxy group; D is the radical of an amine of the benzene or naphthalene class which carries the complex forming group in ortho position to the amino group; Ar is an aromatic carbocyclic radical; Ar<SP>1</SP> and Ar<SP>11</SP> are aromatic carbocyclic or heterocyclic radicals; q is an integer from 0 to 5; m is 1, 2 or 3 and n is 0, 1 or 2 and n + m is at most 3; p is 0 or 1; the benzene ring "a" can carry a further fused benzene ring or can be substituted by halogen, NO 2 , alkyl or alkoxy; and Q+ is a cation, are prepared by converting a dye of the formula wherein both dye molecules together contain 0 to 5 sulpho groups and contain 1 to 3 disazo groups of the formula or one disazo group of the Formula (4) and I or 2 monoazo groups of the formula or two disazo groups of the Formula (4) and one monoazo group of the Formula (5) with a chromium donor into the 1:1 chromium complex and subsequently reacting this with a non-metallized dye of the Formula (3) or (2) to give the 1:2 chromium complex. They are used to dye wool, silk, casein, polyamide and polyurethane fbres and leather.
Patent GB-646422-A (GB)
Title: Improvements in or relating to porous fibrous products and methods of making same
IPC: D04H1/64
Filed: 1946-07-01
Abstract: Compositions, in the form of laminated fibrous sheet material which may be vulcanized, comprise natural sheep's wool or fibrous material having substantially the normal fibre size and kink characteristics of wool, e.g. reclaimed wool or crimped rayon and casein, coated and impregnated with an elastomer such as natural or synthetic rubber, e.g. neoprene, butadiene-styrene copolymers or reclaimed rubber, the final ratio of elastomer to fibres in the final product being greater than 1 to 1 by weight.  Specified ratios are 2 : 1, 3 : 1, 4 : 1 and 5 : 1.  The Specification as open to inspection under Sect. 91 comprises also the treatment of nonlaminated fibrous materials.  This subject-matter does not appear in the Specification as accepted.