baber/WOPTO huggingface dataset:
Patent GB-1179521-A (GB)
Title: Buoyant Life Saving Device
Inventor: GALLOWAY NEVILLE KENNETH
IPC: B63C9/20
Filed: 1968-01-09
Abstract: 1,179,521. Life-saving appliance. N. K. GALLOWAY. 7 Jan., 1969 [9 Jan., 1968], No. 1177/68. Heading B7U. A buoyant life-saving device comprises a buoyant body containing a battery connected through a switch 18 to an external lamp 14, and an inflatable body 8 connected to a compressed gas bottle 11 via a valve 10 closed by a watersoluble element, a wall 7 of the buoyant body being displaceable by the inflatable body. The buoyant body is of expanded polystyrene and comprises complementary portions with mating recesses forming internal cavities 3, 4, 6 for battery, radio and bottle. Switch 18 is held open by a projection (22, Fig. 4, not shown) on a holder (20, 20<SP>1</SP>) when the device is stored. A portion (21) on the holder excludes water from the soluble element during storage. When the device is dismounted from the holder and thrown into the water, switch 18 closes and lights lamp 14, the soluble element dissolves and inflatable body 8 inflates, displaces wall 7 and leaves the buoyant body but remains attached by hose 9.
Patent GB-1337302-A (GB)
Title: Control apparatus for burners
IPC: F23N5/20
Filed: 1971-01-11
Abstract: 1337302 Burner control apparatus ELECTRONICS CORP OF AMERICA 11 Jan 1971 [27 Feb 1970] 1212/71 Heading F4T A control apparatus for a burner comprises a condition sensor, e.g. flame rod 70, a first relay 90 which is responsive to signals from the rod and is in a first (unenergized) state and a second (energized) state in the absence and presence, respectively, of signals from the rod, a control relay 60 which is adapted to be switched between a first (unenergized) and second (energized) state, circuitry, e.g. switch 40-1, responsive to an operation request, e.g. heating of safe-start heater 40, for switching the control relay 60 from the unenergized to the energized state after a predetermined time interval, and clamping circuitry which is operative in response to the detection, due to spurious flame signals, of the first relay 90 in its energized state during the time interval to clamp the first relay 90 in its energized state and the control relay 60 in its unenergized state, overriding the influence of the flame rod 70. In normal start-up operation control 14 is closed, supplying power to an air blower 18 and transformer primary 28, resulting in current flow from secondary winding 29 to the two-stage amplifier and flame detector circuitry 72, which includes a FET 76, from winding 38 to safe-start heater 40 and from winding 36 to flame rod 70. In the absence of flame the FET 76 is in a conductive state and transistors 80, 82 are non- conducting, leaving relay coil 90 unenergized. After a short interval, e.g. a few seconds, heater 40 closes switch 40-1, thus supplying power to lockout switch heater 50 and control relay 60. Energizing relay 60 actuates switches 60-1, which locks relay 60 in the on position; 60-2, which opens a checkout circuit; and 60-3, which supplies power to ignitor 20 and opens pilot fuel valve 22. When the pilot is ignited the flame is sensed by rod 70, which places FET 76 in a non-conducting state resulting in transistors 80, 82 being switched on and relay coil 90 being energized. Energizing coil 90 actuates switches 90-2, which terminates the flow of current through lockout switch heater 50, 90-3, which terminates operation of the ignitor; 90-4, which actuates the main fuel valve 24 to supply fuel to the burner; and 90-1 and 90-5, which function in safety circuits. If the flame goes out during operation, relay coil 90 is de-energized and the ignition procedure re-started. If reignition is not achieved within a specified time interval, e.g. 10 seconds, lockout switch heater 50 closes switch 50-2, which actuates alarm 16, and opens switch 50-1, cutting off power from all other parts of the system. If there is a spurious flame indication in the time interval between closing control 14 and the closure of safe-start switch 40-1, relay coil 90 is energized and actuates switch 90-5, which clamps the coil 90 in its energized state, and opens switch 90-2, so that when lockout switch heater 50 is energized, relay coil 60 remains unenergized and after a specified time interval heater 50 actuates the alarm as described above.
Patent GB-121216-A (GB)
Title: Improvements relating to Grinding Machines applicable for Surfacing Rails in situ.
Inventor: PESCATORE ANTOINE BONAVENTURE
IPC: E01B31/17
Filed: 1918-01-23
Abstract: 121,216. Pescatore, A. B., and Pescatore, F. Jan. 23, 1918. Railway &c. rails, trueing and surfacing in situ. -In apparatus for grinding rails in situ, the frame carrying the grinding-wheel and equipment is mounted on feet adapted to stand on undefective portions of the rail on each side of the joint to be ground. The soles of the feet are adjusted into a succession of tangential positions across the rail along two guides, a tube d, and a channelgrinding-wheel is traversed longitudinally to make a succession of cuts at various angles corresponding to the contour of the undefective part of the rail. The grinding-wheel a., Figs. 2 and 5, is carried on a slide c mounted to move parallel with the rail along two guides, a tube d and a channeliron e. The guides are connected at their ends and form a frame, which is supported on feet i, j resting on standard parts of the rail. The feet are in line with the grinding-wheel and have the same width as the grinding-wheel. The frame is adjustable vertically relatively to the rail by nuts o, p working on screw-threads on the feet, which are keyed to slide through bearing-rings in the underside of the frame. The frame is supported by struts q, r secured to a vice s clamped on the opposite rail. The struts are pivotally connected to the frame on the axis of the rod d, and the inclination of the frame can be varied and set by screws o<1>, Fig. 4, on the frame engaging lugs d<2> on a part connected to the struts. This allows either the sole or the side of the feet to engage the rail, and either the periphery or face of the grinding-wheel to make the cut. The slide-rest is reciprocated by hand or mechanically by a pinion on a pivoted frame engaging one of two parallel racks, the pinion being driven by worm gearing from the motor driving the guiding-wheel. The ends of the racks overlap, so that, when the pinion runs off one rack, it may be moved across by hand to engage with the other rack. The struts q, r are connected by a member engaging a screwed rod t, whereby the frame can be moved transversely to the rail to enable the requisite number of cuts to be taken. To prevent the frame from moving along the track, two plates u, v, with slots through which the feet i, j project, are connected together by rods w, x and clamped in position upon the rail. To enable the grinding-wheel to move in a path which will render the rail joint smooth and continuous, an auxiliary guide-rail e<1> is provided, with which a roller f on the slide c engages. This guide-wheel e<1> is hinged in the centre and can be inclined to the horizontal.
Patent GB-1386705-A (GB)
Title: Method of producing l-lysine by fermentation
IPC: C12P13/08
Filed: 1973-01-10
Abstract: 1386705 L-Lysine MITSUI TOATSU CHEMICALS Inc and K SODA 10 Jan 1973 [21 Jan 1972 (3)] 1359/73 Heading C2C L-Lysine is made by culturing an L-lysine producing mutant in a medium containing an assimilable carbon source and a nitrogen source and under aerobic conditions; the mutant belonging to one of the genera Brevibacterium, Corynbacterium and Arthrobacter and being resistant to at least one of the metabolic antagonists (a) L-lysine hydroxamate, (b) S-(betaamino ethyl)-L-cysteine hydroxamate, (c) 3 - (beta - aminoethyl - sulphinyl) - L - alanine (dl), (d) 3-[S-methyl-S-(beta-aminoethyl)-thio]- L - alanine, (e) S - beta - (2 - pyridyl)ethyl - L- cysteine, and (f) S-beta-(4-pyridyl)ethyl-L- cysteine. The mutants are made by culturing a strain of the said genera which is inhibited by one of the metabolic antagonists (a) to (f) under mutant-inducing conditions on a medium containing a carbon source and a nitrogen source supplemented with one of said antagonists.
Patent GB-1107765-A (GB)
Title: Bistable counter circuits
Inventor: BRINKER CARL SIEGMUND DEN
IPC: H03K3/356
Filed: 1965-01-12
Abstract: 1,107,765. Transistor bi-stable circuits. TEXAS INSTRUMENTS Ltd. 12 April, 1966 [12 Jan., 1965], No. 1415/65. Heading H3T. In a bi-stable circuit having two pairs of parallel connected field effect transistors FETIA/B, FETZA/B, the gate of one transistor of each pair is connected to the drains of the transistors of the other pair and the gate-source circuits of each pair of transistors includes a charge storage network C1, C2 such that in one stable condition of the circuit both transistors of the first pair are non-conductive and of the transistors of the other pair one is conductive and the other is non-conductive; when a switching pulse is applied to the input lead IP, the circuit changes to its other stable state via a transition period during which all the transistors are non-conductive so that when the input pulse ends, initially both transistors of the first pair commence to conduct and only one of the transistors of the other pair commences to conduct, followed by switching to the second stable state in which both transistors of the other pair are non-conductive and one of the transistors of the first pair is conductive. Consider when transistors FET1A, PET2A and FET2B are OFF and transistor FET1B is ON, then capacitor C1 is charged and capacitor C2 is discharged. If the input at IP changes negatively to E transistor FET1B turns OFF and capacitor C1 discharges, driving transistor FET1A still further OFF. All the transistors are now OFF and at the end of the input pulse the transistors FET1B, FET2A/B commence to turn ON. A preferential current flow is then provided from the line D.S. by the transistor pair FET2A/B and due to charging of C2 transistor FET2A becomes conductive and transistor FET2B turns OFF. The charging potential is removed from, C1 so that transistors FET1A/B are both non-conductive and the circuit has changed to its second state. Field effect transistors of the insulated gate type may be used.
Patent GB-665367-A (GB)
Title: Pharmaceutical penicillin preparations
IPC: A61K31/43
Filed: 1949-01-18
Abstract: 665,367. Penicillin gels. BRISTOL LABORATORIES, Inc. Jan. 18, 1949 [Feb. 27, 1948], No. 1423/49. Class 81 (i). A non-aqueous, homogeneous, stable, injectable, therapeutic gel is prepared by adding an aluminium stearate in an amount not exceeding 10 per cent by weight of the gel to a non-toxic, non-rancid, bland, vegetable oil in an amount sufficient, when heated together with the oil, to produce such gel, heating the mixture to a temperature at which the aluminium stearate is homogeneously dispersed in the oil with the formation of the gel, and thereafter admixing therein at a temperature below that at which appreciable loss of potency occurs a non-toxic salt of penicillin. Preferably 2 to 5 per cent, especially 4 per cent, of the aluminium stearate is used. The temperature at which the stearateoil mixture is heated is 130 to 200‹ C., the higher temperature being used for the higher stearate concentrations. Sodium or potassium penicillin is incorporated at temperatures below 170‹ C., preferably 150‹ C., and calcium penicillin at below 70‹ C. Specified vegetable oils are peanut, persic, corn, cotton seed, sesame, soyabean, raw linseed, palm, teaseed, olive and mixtures thereof. The aluminium stearate may be the mono-, di-, or tri-stearate, or mixtures thereof. The penicillin salt may be the alkali metal salt, e.g. sodium or potassium penicillin; the alkaline earth salt, e.g. calcium or magnesium penicillin; inorganic salts of iron, copper, bismuth, gold and arsenic; organic salt such as procaine penicillin; and ammonium penicillin. The preparations may also be used as ointments.
Patent GB-606614-A (GB)
Title: Improved means for relieving pressure in the combustion chambers of internal combustion engines
IPC: F02B75/12
Filed: 1946-01-16
Abstract: 606,614. Cylinders. JENNINGS, H. W. K. (Fisher, B. C.). Jan. 16, 1946, No. 1558. [Class 7 (ii)] High pressures in the combustion chambers, likely to cause detonation, are relieved by small leakage paths past packing rings 40, located round fixed plugs 30. The high pressure gases leak to chambers 26, connected together and past a non-return valve 47. The number of rings 40 and the spring pressure on the valve 47 are selected so that the leakage is just sufficient to prevent detonation. In a modification, the valve 47 is replaced by cup-leather washers on the plugs, and the leaking gases are used to actuate a turbine, which drives a fan receiving air from a scoop behind the radiator fan and delivering it to the carburetter.
Patent GB-547000-A (GB)
Title: Improvements in or relating to mixing, emulsifying and like machines
IPC: B01F7/00
Filed: 1941-02-06
Abstract: 547,000. Mixing cement &c. PENMAENMAWR & WELSH GRANITE CO., Ltd., and HODGSON, G. H. Feb. 6, 1941, Nos. 1569 and 13898. [Class 86] A machine for mixing, emulsifying and kneading materials comprises a container 20 and a driven vertical spindle 22 with arms 23 carrying inclined impeller blades 24 to set the material in a whirlpool motion and dolly arms 25 having a beating action on the material in the whirlpool flow, various constructions of combined stirrers and beaters being shown ; the container ,may be of oval shape whereby more rapid stirring may be effected without the material rising so high at the edges. The container may have an inclined discharge aperture closed by a plug 55 carried by a slotted arm 57 pivoted to the container and operated by a pivoted lever 59 projecting through the slot.
Patent GB-636990-A (GB)
Title: Improvements in the construction of fabricated keys for locks
IPC: E05B19/00
Filed: 1948-01-20
Abstract: 636,990. Making keys for locks. PARKES & SONS, Ltd., J., and FRYER, E. C. Jan. 20, 1948, No. 1681. [Class 83 (ii)] In making keys for locks a separate bit A is welded to a shank of round rod or wire B without any recess for the bit. The bit may be welded directly to the shank or to an intermediate pin E or may be cut integrally with the pin from beaded strip. A collar D may be formed by upsetting the shank or pin. A handle C may be welded on as a separate part or may be formed on the end of the shank by bending it into a loop or by flattening and splitting to " T " or " Y " form, or to oval form b<SP>1</SP>, Fig. 9, and finally opening to the conventional shape.
Patent GB-841139-A (GB)
Title: Improvements relating to rectifier units
Inventor: NOON HARRY ROY
IPC: H01L25/07
Filed: 1956-01-18
Abstract: 841,139. Rectifying devices. BRITISH THOMSON-HOUSTON CO. Ltd. Jan. 18, 1957 [Jan. 18, 1956], No. 1720/56. Class 37. In a full-wave rectifier, Fig. 1, each of a plurality of rectifying elements a-h of the contact type, comprising e.g. germanium or silicon, is mounted on one of the rectangular heat-radiating metal plates 1-4, 6-9, to which one electrode of the elements is electrically connected, the other electrode, which comprises a terminal post 19, being connected to an adjacent plate. Each plate is provided with a peripheral tag 14 for connection to an external circuit, a central hole through which passes a bolt 15 to clamp the plates in insulated parallel relationship, and four apertures disposed equidistantly from the central hole on the plate diagonals. One aperture, which is larger than the others and flanged, houses the rectifying element which is sealed into the aperture or preferably formed integral with the plate as described in Specification 838,432, and the other three apertures are adapted to receive the terminal post 19 of an adjacent element. An intermediate plate 5, which does not carry a rectifying element, connects together the terminal posts 19 of elements d, e, and comprises the negative terminal of the D.C. circuit. The apparatus shown constitutes a rectifier bridge, each arm of which comprises two elements in series. Modifications. Each tag 14 may be disposed on the periphery of an enlarged central hole, connection to the external circuit being effected by a bus-bar. Two or more rectifying elements may be mounted on each plate to achieve a series-parallel arrangement. To increase cooling, additional centrally dished plates may be placed in electrical and thermal connection with the plates carrying the rectifying elements ; in this case the terminal posts 19 are connected to the additional plates.
Patent GB-175866-A (GB)
Title: Improvements in or relating to pneumatically operated percussive tools such as rivetting hammers and similarly operated implements
IPC: B25D17/04
Filed: 1921-01-11
Abstract: 175,866. Slade, A. G., Slade, L. W., and Roy, J. Jan. 11, 1921. Percussive hand toots.-The extent of movement of the trigger 9 of a riveting hammer or similar tool is controlled by a disc 5 provided with slots of different depths, and clamped when set by a nut 7 and spring 8. The position of the trigger determines the extent of opening of the throttle valve 2. A sliding member may replace the disc.
Patent GB-1037264-A (GB)
Title: Apparatus for developing diazo materials
IPC: G03D7/00
Filed: 1963-01-15
Abstract: 1,037,264. Diazotype developing apparatus. MINNESOTA MINING & MANUFACTURING CO. Jan. 15,1963 [Jan. 15,1962], No.1821/63. Heading G2A. In diazotype developing apparatus means are provided for heating the film to prevent condensation thereon and for reducing the pressure to subatmospheric adjacent the film inlet and outlet so as to cause circulation of the ammonia vapour within the apparatus and to prevent escape of vapour therefrom. The plan view in Fig. 1 shows the means for reducing pressure at the inlet and outlet and causing circulation and preventing escape of ammonia which consists of blowers 36 and 35 which force ammonia from the inlet and outlet via flexible pipes 40 and 39 back to a central zone of the apparatus. To prevent condensation on the film, sensor 48 of thermostat 47 controls heater 45 (see side view, Fig. 2) which is enclosed by cover plate 46 and extends the length of the chamber beneath the stretch of conveyers 6 and 7) carrying the film. Other features shown on the figures are a transparent cover plate 15, ammonia inlet 28, evaporation tray 29, strip heater 31 and vent 43.
Patent GB-905187-A (GB)
Title: Catalysts and their use in ª--olefinic polymerisation
IPC: B01J37/20
Filed: 1961-01-17
Abstract: In a process for the production of a catalyst for the low pressure polymerisation of an a -olefine in a liquid organic medium, a reduced oxide of a metal in Group V or VI(a) of the Periodic Table is slurried in the liquid organic medium, the slurry is heated to a temperature within the polymerization range whereby water is formed and the catalyst and water are subsequently separated from each other.  Specified reduced oxides are those of chromium, molybdenum or vanadium.  Specified liquid organic media are mineral spirits, n-decane, naphtha and xylene. Preferably the slurry is heated at 200 DEG  -300 DEG  C.  The reduced oxide may be supported on gamma-alumina, or silica-alumina.  The slurry may additionally contain metallic sodium.  The reduced oxide may be produced by reduction of a higher oxide with hydrogen.  The catalytic compositions may be promoted with ethyl aluminium sesquibromide.ALSO:a -olefines, especially those containing 2-10 carbon atoms, are polymerized in a liquid organic medium at low pressure in the presence of a catalyst which has been prepared by slurrying a reduced metal oxide of the Periodic Group V(a) or VI(a) in the liquid organic medium, heating the slurry to a temperature within the polymerization range whereby water is foamed and separating the catalyst and water from each other.  Specified a -olefines are 1-pentene, 1-hexene, 1-decene, styrene, ethylene and propylene. Additionally the catalyst may contain metallic sodium or ethyl aluminium sesquibromide.  The catalyst may be supported on alumina or silica-alumina.  Specified liquid organic media are mineral spirits, n-decane, naphtha and xylene.  Examples are given.
Patent GB-1326171-A (GB)
Title: Monoazoy dyestuffs
IPC: D06P1/06
Filed: 1972-01-14
Abstract: 1326171 Monoazo dyes BAYER AG 14 Jan 1972 [15 Jan 1971] 1870/72 Heading C4P The invention comprises monoazo dyes of formula wherein X represents a straight or branchedchain alkylene radical having 2-4 carbon atoms; R 1  represents H or alkyl; R 2  represents H, Cl, alkyl or acylamino; R 3  represents H or alkyl and R 4  represents alkyl, the rings A and B being optionally further substituted by one or more non-ionic substituents and in which the alkylene, acylamino and alkyl groups may be substituted. The dyes may be obtained by diazotization and coupling and give orange and red shades on natural and synthetic fibres, especially polyamide fibres.
Patent GB-1119021-A (GB)
Title: Process for separating 2-chlorobutadiene-(1,3) from trans-2-chlorobutene-(2)
IPC: C07C17/386
Filed: 1967-01-13
Abstract: Chloroprene containing trans - 2 - chlorobutene-2 as contaminant is purified by vaporizing the contaminated chloroprene and removing the trans-2-chlorobutene-2 by scrubbing the vaporized matter with at least 5 volumes of liquid n-heptane or iso-octane per volume of contaminated liquid chloroprene.  A polymerization inhibitor may be present.  1-Chlorobutadiene-1,3 and cis-2-chlorobutene-2 may also be present as contaminants and are also removed by the process of the invention. The impurities may be recovered from the n-heptane or iso-octane by distillation.
Patent GB-1323045-A (GB)
Title: 2-acylaminothiazole derivatives and their use as herbicides
IPC: C07D277/54
Filed: 1971-01-14
Abstract: 1323045 Derivatives of 2-acylaminothiazoles SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 14 Jan 1971 [16 Jan 1970 20 April 1970] 1913/71 Heading C2C Novel thiazoles of the formula  in which R and R<SP>1</SP> are hydrogen or C 1-4  alkyl, R<SP>2</SP> is C 2-8  alkyl, cycloalkyl of up to 8 carbon atoms, C 2-8  alkenyl or aryl (each of which may be substituted by F, Cl, Br, -CN or -CF 3 ), or R 2  is -NR<SP>3</SP>R<SP>4</SP>, where R<SP>3</SP> is hydrogen, C 1-2  alkyl or R<SP>5</SP>CO- (where R<SP>5</SP> is C 1-3  alkyl) and R<SP>4</SP> is C 1-2  alkyl or R<SP>5</SP>CO-, n is 0, 1 or 2, and R<SP>6</SP> is hydrogen (when n is 0), C 1-4  alkyl, cycloalkyl of up to 4 carbon atoms, or -NR<SP>7</SP>R<SP>8</SP> (when n is 2) where R<SP>7</SP> is hydrogen, C 1-4  alkyl, or cycloalkyl of up to 4 carbon atoms and R<SP>8</SP> is as R<SP>7</SP> or an alkali metal ion or R<SP>5</SP>CO-, or when R<SP>7</SP> is H or alkyl R<SP>8</SP> may be C 1-3  alkoxy or -NR<SP>9</SP>R<SP>10</SP>, where R<SP>9</SP> and R<SP>10</SP> are hydrogen or C 1-3  alkyl, or R<SP>7</SP> and R<SP>8</SP> together represent an alkylene radical, are prepared by reacting an amine of the formula with an acyl halide R<SP>2</SP>COX, or to obtain the ureas in which R<SP>3</SP> is hydrogen, with an isocyanate R<SP>4</SP>NCO. The 5-thioethers, where n is 0, may be oxidized with chloroperbenzoic acid to the sulphoxides or with hydrogen peroxide to the sulphones. The 5-sulphamoyl derivatives may be obtained by chlorosulphonation of the 2-acylaminothiazoles and subsequent reaction with an amine R<SP>7</SP>R<SP>8</SP>NH. A large number of amides and ureas are specified. 2 - Amino - 5 - (ethyl- or methyl - thio)-thiazole is obtained by bromination of 2-aminothiazole and condensation of the resulting 2-amino-5- bromothiazole with ethyl or methyl mercaptan. The 4-methyl analogues are obtained similarly. The novel thiazoles possess herbicidal properties and are used in conventional forms as pre- and post-emergence weed-killers.