baber/WOPTO huggingface dataset:
Patent GB-646819-A (GB)
Title: Improvements in or relating to the production of antibiotic substances
IPC: C07D499/62
Filed: 1947-12-16
Abstract: Antibiotics related to the penicillins, of the general formula <FORM:0646819/IV (b)/1> wherein X represents hydrogen, halogen or hydroxyl, n is zero or a whole number up to 5 and Y represents a cation, e.g. hydrogen or a metal, especially an alkali metal, are manufactured by introducing, into a culture medium suitable for the growth of a Penicillium mould (of which an example is given), a precursor compound which is an acid of the general formula <FORM:0646819/IV (b)/2> or the amide, a lower alkanolamide or a carboxy-lower-alkyl-amide of such acid, e.g. in a concentration of 100-500 mg. per litre of culture medium.  The product may be isolated by chromatography (e.g. from etheral solution on to activated silica gel, using aqueous potassium phosphate solution as eluant, the process then being repeated from chloroform solution), and may be purified by recrystallization (e.g. from 1 : 10 water-acetone solution by slow addition of acetone).  Examples describe the use of the following precursors: (1) phenylmercaptoacetic acid; (2) p-bromophenylmercaptoacetic acid; (3) benzylmercaptoacetic acid; (4) phenylethylmercaptoacetic acid; (5) p-hydroxyphenylmercaptoacetic acid.  p-Hydroxyphenylmercaptoacetic acid is obtainable by diazotizing the corresponding p-amino compound and boiling the diazonium compound with dilute sulphuric acid.  The Specification as open to inspection under Sect. 91 comprises the use as precursor of any derivative of an acid of the second general formula above, and refers specifically to the b -hydroxyethylamide and the a -carboxyisobutylamide.  This subject-matter does not appear in the Specification as accepted.  Reference has been directed by the Comptroller to Specification 643,514.
Patent GB-986587-A (GB)
Title: Improvements in or relating to travelling wave tubes
IPC: H01J25/38
Filed: 1962-08-29
Abstract: 986,587. Travelling wave tubes. M-O VALVE CO. Ltd., and C. H. DIX. Aug. 28, 1963 [Aug. 29, 1962], No. 33237/62. Heading H1D. A forward-wave travelling wave tube has a slow wave structure formed from a plurality of electrically conductive annular members 10 which are disposed in axial alignment and are serially connected by electrically conductive straps 11 extending parallel to the axis of the structure, each adjacent pair of straps extending respectively from diametrically opposite positions on opposite sides of the annular member between them, wherein the structure is coaxially surrounded at least along the major part of its length by an electrically conductive tube 13, and an annular electron beam is arranged to pass substantially coaxially through the slow wave structure, the arrangement being such that the internal diameter of the conductive tube is between 1.25 and 1.5 times the mean diameter of the annular members, and the mean diameter of the beam is between 0.5 and 0.9 times the mean diameter of the annular members. The slow wave structure is supported within the conductive tube by rods 17 of insulating material, and the conductive tube is supported from an electrically conductive envelope portion 3 by metal helices 20 extending along the length of the annular space and serving to prevent undesired electric coupling between different parts of the slow wave structure. To prevent undesired modes of propagation along the slow wave structure, each strap member may have a slot extending along the strap and across each annular member, thus producing a high impedance gap compared with the remainder of the annular member. The slow wave structure may comprise two sections, separated by a space, one structure being rotated through 90 degrees with respect to the other, each section having coaxial connections at both their ends, the four connections extending out of the tube near the collector end of the tube.
Patent GB-480902-A (GB)
Title: Means for automatically controlling the production of water vapour and the supply thereof to a gas producer
IPC: C10J3/76
Filed: 1936-12-04
Abstract: 480,902. Gas - producers; furnace grates. GALUSHA, A. L. Dec. 4, 1936, No. 33326. Convention date, Oct. 31. [Classes 51 (i) and 55 (i)] In a gas-producer wherein all the air supplied to the combustion zone is caused to pass over hot water, the producer is provided with means responsive to variations in the temperature of the air supplied, for controlling the temperature and moisture of the moist air supplied. Air from a blower 14 is blown over the surface of the water contained in a jacket 2 surrounding the sides and top of a producer 1 and the hot moist air resulting supplied to the producer through the grate 24 by way. of a supply pipe 20. The latter is provided with a bulb, containing an expansible fluid, which is connected by capillary tubing 40 with an expansible diaphragm 42 connected to a throttle valve 46 in a pipe 28, the latter being one of a number of branch pipes connecting a water supply pipe 26 with the jacket. Excess water in the jacket is discharged through a U-tube 36<1>. Increase of temperature in the air supply pipe acting on the thermostat 38 causes the diaphragm 42 to open the valve 46 further against a spring 48 thus increasing the flow of water to the jacket and vice versa. The air is preferably saturated with moisture, the thermostatic control then also keeping the air to water vapour ratio constant. In a modified method of working, the branch pipe 28 is closed and excess water is supplied to the jacket through a branch pipe 30, the desired temperature and moisture condition of the air being attained by a supplementary steam supply from a pipe 60 which is provided with the thermostatic control means described. The grate comprises a number of eccentrically mounted annular plates 24a ... 24d carried by a pivoted frame 24e. A scraper 27a fixed to one of the annular plates co-operates with projections 31 from the wall of the producer in breaking down ash or clinker which is thereupon forced over the annular plates of the grate.
Patent GB-931652-A (GB)
Title: Process for the electrolytic purification of semiconductor materials
Inventor: ROMAN GEORGE
IPC: C30B13/00
Filed: 1959-10-01
Abstract: <PICT:0931652/III/1> In the zone melting of germanium or silicon by means of an induction coil, a crucible 1 of quartz contains the material 2 to be treated, D.C. current is supplied via carbon electrodes 3, and a magnetic field is applied at right angles to the current flow. The material treated may have a cross-section of 2 cm. sq.  A current of 1000 amps/sq. cm. and a potential of 5 volts may be employed.  The field may be produced by a permanent or electromagnet, which may be cooled.  The poles may be spaced apart 10 cm.  The magnetic field strength may be 5000 lines per sq. cm. Specification 850,313 is referred to.
Patent GB-1393770-A (GB)
Title: Chain-making machine
IPC: B21L1/02
Filed: 1972-07-17
Abstract: 1393770 Making chains MEYER ROTH & PASTOR MASCHINENFABRIK GmbH 17 July 1972 33405/72 Heading B3E A chain-making machine comprises a fixed mandrel 7 round which each link is formed, having a groove 8 for accommodating the preceding link 9, a sleeve 6 for feeding a piece of rod 5 to form the next link against an abutment 15, a retainer 11 for holding the piece 5 against the mandrel, being tools, e.g. rollers 14 for curving the piece round the mandrel, and further bending tools 18 for imparting a reversed bend to the piece. As shown, the bending tools are mounted between opposed cheeks of tool holders 12. When the workpiece is in place, and held by retainer 11, the holders are moved in the direction of arrow 22 so that tools 18 impart a reversed bend to the workpiece as at 23, and the mandrel 7 is so shaped that the workpiece can then be further pressed against the mandrel by advancing retainer 11. The tool holders are then moved in the direction of arrows 24, to form the piece into a U-shape as at 26, followed by completion of the link in conventional fashion.
Patent GB-826228-A (GB)
Title: Improvements in and relating to nuclear reactors
Inventor: C B E CLAUDE DIXON GIBB
IPC: G21C3/14
Filed: 1955-11-22
Abstract: 826,228. Nuclear reactors. PARSONS & CO. Ltd., C. A. Nov. 7, 1956 [Nov. 22, 1955], No. 33495/55. Class 39(4). [Also in Group XXV] A fuel element for a nuclear reactor is made in the form of or suitable to act as a link in a chain. In the Figure a coupling member 5 is secured to the nuclear fuel 4 and also to an end closure member 6 of the fuel container. A coupling member 7 is similarly secured to the fuel and end closure member of another fuel element, and the members 5 and 7 are linked with a member 9 to form a universal joint. A spacing member 10 may be provided between the fuel 4 and the end closure 6 to reduce heat conduction from the end of the fuel. If an enriched fuel is being used the container may be of material which has good mechanical strength, in which case the members 5 and 7 can be joined directly to the container. By arranging all the fuel elements of a fuel channel in a chain, one lifting operation can remove all the elements from the channel, or the channel can be fully loaded with fuel in one operation. The chain may be suspended from the top of the reactor to relieve the fuel elements of compressive stresses.
Patent GB-388510-A (GB)
Title: Improvements in, or relating to, traffic beacons
IPC: E01F9/615
Filed: 1931-12-03
Abstract: 388,510. Lamp-posts. COATES, E. D., 125, Crookes Road, Sheffield. Dec. 3, 1931, No. 33545. [Class 20 (i).] A traffic-warning beacon light arranged to produce in daylight a black and white effect and in darkness a dark and light effect which is continuously visible from one or more sides, comprises a head adapted to be steadily illuminated from within and to project light downwardly into one or more exposed vertical passages which are formed interiorly of the supporting pillar or post and which are closed at the rear and open at the front in alternate lengths in the height of the post. The latter may be made of metal, wood or concrete. In the form shown, the sheet-metal post a is formed with a flanged base b and with a detachable top d containing one or more lamps and open at the bottom to project light downwardly on to a back-plate g from which the light is reflected outwardly through openings c, j formed by a front plate e detachably or permanently secured to the post. The openings c, j may be covered with translucent glass. The plate g is spaced from the back h of the post to form a concealed passage i for electric wiring or for acetylene or other gas tubing connected to the lamps. The base b, the plate e, and adjacent portions of the body of the post are painted black, whilst the plate g and the remainder of the body are painted white or made of a material that is naturally white or light reflecting. Modifications described and illustrated in the Specification comprise two or more exposed vertical passages, the concealed passage being formed by portions of the back plates or by a separate tube fitted between them.
Patent GB-1015738-A (GB)
Title: Brake mechanism
IPC: F16D65/22
Filed: 1964-08-17
Abstract: 1,015,738. Internal shoe drum brakes. EATON MANUFACTURING CO. Aug. 17, 1964 [Sept. 12, 1963], No. 33615/64. Heading F2E. In an internal shoe drum brake of the duoservo type having shoes 17, 18 anchoring at either end and acted on by spreading devices, e.g. of wedge type, disposed between both pairs of adjacent shoe ends, an annular fluid-pressure actuator acts axially on the spreading devices and is disposed externally of the brake. In one embodiment, Figs. 3 and 6, the fluidpressure actuator comprises an annular cylinder, formed by outer and inner members 56, 57, and an annular piston 55 which is acted on by compressed air. The piston is connected by pins 64 to a pair of wedges 29 forming part of spreading devices 11, 12 each of which consists of a cylindrical sleeve containing a pair of plungers 32 having inclined faces 40, 41 and rollers 44, 45 which are trapped by flanges 50, 51 of the plungers and coact wth the faces 40, 41 and corresponding surfaces of the wedge 29. The plunger 32, 33 act on the shoe webs via extensions 35, 38 of which the former has a threaded connection with plunger 33 for manual wear adjustment. Hold-down springs 20, 22 are provided to prevent the shoes moving away from the backing plate 10. In another embodiment (Fig. 5, not shown) the compressed-air actuator consists of a rolling diaphragm 80 of open form secured between a plate 83 and flanges 84, 85 on outer and inner members forming an annular cylinder, the diaphragm acting on the wedges 29 via a channel-shaped annular piston acting on heads 74 of the wedges when air is admitted to inlet 86. In another embodiment (Fig. 4, not shown) the diaphragm is in the form of a closed tube which is perforated to receive the air inlet.
Patent GB-1080770-A (GB)
Title: Pipe making machine and method
Inventor: DAVIS PAUL KNIGHT
IPC: B21C37/12
Filed: 1965-08-05
Abstract: 1,080,770. Making helically seamed tubing; corrugating. PACIFIC ROLLER DIE CO. Inc. Aus. 5. 1965, No. 33655/65. Headings B3A, B3E and B3J. An apparatus for making helically seamed tubes from metal strip 2 comprises a series of rolls 36, 37, 38 which forms the strips into helical convolutions the edges of which can be joined to form the tube. Strips from a coil 20 passes between corrugating rolls 8 and flanges 29 are formed on the edges of the strips by rollers 30, 91. The strip is formed into helical convolutions by rolls 36, 37, 38, engaging the flanges 29 together which are then flattened by rollers 46f and a crimping wheel 75, to form a lock seam. The rolls 36, 37, 38 are mounted on a frame 35 which is attached to the carriage 3 of the apparatus by a pivot pin 41 which enables the helix angle to be varied to suit different widths of strip. The rolls 36, 37, 38 each comprise wheels or rollers 46, which are mounted in yokes 48, attached to plates 49, which are linked together by connectors 50 and which can be moved laterally across the strip and pivoted to suit the angle and position of the corrugations. Screws 63, 66 are provided to make this adjustment. The diameter of the pipe formed is varied by altering the difference in vertical height of rolls 36 and 37. The pitch of the corrugation is determined by the separation of rollers 9 by means of spacers 11, provided between the rollers 9. If a tube which is not corrugated is needed the corrugating rolls may be replaced by plain rolls.
Patent GB-626674-A (GB)
Title: Let-off motion for looms
IPC: D03D49/06
Filed: 1946-11-14
Abstract: 626,674. Let-off motion for looms. WALKER, D. Nov. 14, 1946, No. 33813. [Class 142 (ii)] [Also in Group XXXIV] A warp beam brake band C has a rubber lining B in turn lined with cotton rope A. The brake is adjusted by a handwheel J and can be released 'by a handle G ; a resilient anchorage E allows the beam to oscillate during shedding.
Patent GB-339747-A (GB)
Title: Improvements relating to calendars and almanacks
IPC: B42D5/04
Filed: 1929-11-06
Abstract: 339,747. Reid, S. Nov. 6, 1929. Calendars.-A calendar comprises a back board c, Fig. 3, and a series of superposed date sheets a removably attached thereto as by means of paper fasteners b. The date sheets a as shown in Fig. 1 bear information on both sides for two, three or more months or periods and are capable of being folded so as to expose the dates for a single month or period or for two or more months or periods, holes d being provided at the corners for facilitating attachment and removal. The use of such sheets enable the current, preceding, and/or succeeding month to be exposed.
Patent GB-960706-A (GB)
Title: Composite flooring
IPC: B26D3/28
Filed: 1960-10-04
Abstract: 960,706. Screeded floor construction. PORON INSULATION Ltd. Oct. 4, 1960 [Oct. 15, 1959; July 22, 1960], No. 34044/60. Heading E1V. Composite flooring comprises a structural floor layer b, Fig. 1, a surface screed, (not shown), and an interposed layer of foamed plastics the lower face of which is formed with corrugations a. The plastic may be polystyrene. In a modification Fig. 4, two plates of foamed plastic are mounted one upon the other with their corrugated faces in contact, the corrugations on one plate being disposed at right angles to the corrugations on the other plate. The plates may be formed with corrugations so proportioned that the corrugated faces will nest together for economy of space in transport.
Patent GB-1186219-A (GB)
Title: Improvements in or relating to Time Switches.
Inventor: ARNOUX ANDRE
IPC: H01H43/02
Filed: 1967-07-25
Abstract: 1,186,219. Time switches. A. ARNOUX. 25 July, 1967 [27 July, 1966], No. 34140/67. Heading H1N. Initiation of the timing cycle of a time switch is effected by locking one output shaft 21 carrying sun-wheel 19 of a combined differential and reduction epicyclic gear 14, 17, 18, 19, 26 by an electromagnetic brake 22, 23 so that planetary carrier 14, which is driven by a synchronous motor (not shown), drives switch actuating shaft 4 via planetary wheels 17, 18 and sun-wheel 26 which is on the shaft 4. Shaft 4 carries time graduated drum 50 and a tappet 69 which actuates a contact set after a set time through a pivoted follower which thereafter either actuates a further contact set to switch off the synchronous motor or frictionally holds it still. The drum 50 carries a stop 33 biased into engagement with an adjustable stop 32 on back plate 28 by a spiral spring 8. Plate 28 is angularly adjustable, by means of a worm 75 and gear 74, to set the time delay. The drum is returned to its initial set position on release of electromagnetic brake 22, 23. As shown, the brake comprises a magnetic plate 22 biased by springs 91 so that its teeth 89 mesh with teeth 83 formed on a plate 81 mounted on the same shaft 21 as sun-wheel 19 and hold the shaft 21 &c. stationary. The brake is thus released on energization. Alternatively, by arranging the teeth on plate 22 to mesh with corresponding teeth on electromagnet 23, the brake may be applied on energization. The sun-wheel 26 may be axially movable to co-operate with either planetary wheel 17 or 18 to provide different reduction ratios which are reflected by two sets of graduations on the drum. Alternatively, the planetary gears 17 and 18 may be reversed with respect to sun-wheel 26 to provide different reduction ratios.
Patent GB-627602-A (GB)
Title: Stabilizers for photographic emulsion
Filed: 1946-11-18
Abstract: 7 - Hydroxy - and 7 - amino - 1 : 3 : 4-triazaindolizines having fused-on rings in the 5 : 6-positions and of the formula <FORM:0627602/IV (b)/1> wherein R is H or an alkyl, alicyclic, aryl, or heterocyclic group, Y is NH2 or OH, and Z represents the atoms to complete a 5- or 6-membered alicyclic or heterocyclic ring are obtained by heating either a cyclic b -ketoester or a cyclic b -ketonitrile with a 3-amino-1 : 2 : 4-triazole of formula <FORM:0627602/IV (b)/2> wherein R is H or an alkyl or aryl ring.  The reactants may be refluxed together in a solvent such as glacial acetic acid, pyridine, or alcoholic alkali.  b -Keto esters specified are 1-carbethoxy-2 - ketocyclopentane, 1 - carbethoxy - 2 - ketocyclohexane, 1 - carbethoxy - 2 - phenylcyclohexane - 4 : 6 - dione, 2 - carbethoxy - 3 : 4-diketo - 1 : 5 - diphenylpyrrolidine, 1 - carbethoxy - 2 - Beto - 3 - methyl - 3 : 6 - dimethylmethanocyclohexane, 1 - carbethoxy - 2 - keto-5 - phenylpyrrolidine, 1 - phenyl - 2 - keto - 3-carbethoxypyrrazolidine, 1 - carbethoxy - 6 : 6-dimethyl - 2 : 4 - diketocyclohexane, 2 - carbethoxy - 5 - phenylthiolane - 3 - one, and 2 - (a  - furyl) - 1 - carbethoxy - 4 : 6 - diketocyclohexane, b -Ketonitriles specified are 1-cyano - 2 - phenylcyclohexane - 4 : 6 - dione, 1 - cyano - 2 - cyclopentanone, 1 - cyano - 2 - cyclohexanone, and 1-cyano-2 : 2 - di - methylcyclohexane - 4 - 6 - dione.  3 - Amino - 1 : 2 : 4 - triazole or the 5-methyl-, 5-ethyl-, 5-n-propyl, 5-isopropyl -, or 5 - phenyl derivative may be used.
Patent GB-901573-A (GB)
Title: Improvements in or relating to the elution of gold-bearing ion-exchange resins
Inventor: DAVISON JACK
IPC: C01G7/00
Filed: 1959-10-12
Abstract: Gold values are recovered from an ion-exchange resin containing gold, copper, and nickel by contacting the resin in a first step with an alkali metal cyanide solution, e.g. NaCN, to elute copper and nickel, and iron and zinc if present, in a second step with a mineral acid, e.g. H2SO4, to remove further copper and nickel, and in a third step with an alkaline solution of a thiocyanate, e.g. N H4CNS or NaCNS. The resin is obtained by passing a cyanide solution, obtained from the dressing of ore, through a predominantly weakly basic anion exchange resin, e.g. a polystyrene type, in the salt form.  After the third step, the resin may be regenerated by mineral acid solution. The eluants in the first, second and fourth steps may be used in a number of fractions.  In a succession of cycles of operation, the first fractions of the first and second steps of the first cycle are added to the original cyanide solution for gold leaching, while the second fraction becomes the first in the second cycle, the third becomes the second, and so on.  The last fraction of the first step of the second cycle is a fresh cyanide solution, while the last fraction of the second step in the second cycle was the first fraction of the resin regeneration in the first cycle.  The last fraction of the resin regeneration is a fresh acid solution. The gold is recovered from the eluate of the third step, e.g. by electrolysis, and the stripped eluate is used in the second cycle. Specification 901,572 is referred to.
Patent GB-1154247-A (GB)
Title: Improvements relating to Pallets
Inventor: FOSTER NORMAN JONATHON DUDLEY
IPC: B65D85/20
Filed: 1966-08-02
Abstract: 1,154,247. Load handling pallets. FOSTER BROS. Ltd. 3 July, 1967 [2 Aug., 1966], No. 34538/66. Heading B8H. An adjustable pallet, normally used in pairs to stack tubes or the like, Fig. 2 (not shown), comprises a socket part 10 and a spigot part 11. Parts 15, 16 telescope into parts 13, 14, respectively, to encircle the articles and a bolt 22 inserted through a suitable hole 20 into a tapped hole 21 in the part 16 clamps the parts 10, 11 together.
Patent GB-1433713-A (GB)
Title: Device for actuating an electrical contact
IPC: F42C19/06
Filed: 1974-08-08
Abstract: 1433713 Inertia switch RAFAUT & CIE 8 Aug 1974 [8 Aug 1973] 34970/74 Heading H1N In an inertia switch for firing a charge upon impact, a pair of opposed pistons 14, 15, Fig. 3, resiliently urged towards one another retain a ball 23 between their ends in a cavity 11 and one of the pistons 14 supports a contact 19 which engages a contact 6 to complete an electric circuit when the ball 23 is released by impact. The pistons are urged by springs 16, 17 backed by adjustably threaded rings. A second set of pistons 21, 22 and ball 23 may be arranged below the first set but at right angles thereto so that the switch is operable in all directions.