baber/WOPTO huggingface dataset:
Patent GB-389133-A (GB)
Title: Improvements in or relating to the direct hydration of olefines
IPC: C07C29/04
Filed: 1931-09-11
Abstract: The hydration of olefines is effected by means of water vapour in presence of aqueous sulphuric, phosphoric, sulphonic, or other strong acids in the free liquid phase at pressures substantially above atmospheric.  Sulphuric acid may be of 40-80 per cent strength for ethylene, and 45-50 per cent for propylene, and phosphoric acid may be of 85-90 per cent or more for ethylene and 60-85 per cent for propylene.  The temperatures may approach the boiling-points of the acids, for instance with sulphuric acid 130-160 DEG  C. and with phosphoric acid 200-300 DEG  C. are suitable. The pressure may be 50 atmospheres or even 250 atmospheres or higher.  The proportion of steam is preferably chosen so as to maintain the acid concentration constant; usually 10-20 molecules of olefine to 1 of steam is suitable.  The acid may contain metals, salts, or other catalytic agents, such as silver, calcium, lead, iron, mercurous and ferrous ammonium sulphates, silver, and copper.  The acid may be treated with the olefine alone until practically saturated before passing in the mixture of olefine and steam.  This preliminary absorption may be below about 80 DEG  C. for ethylene and 10-20 DEG  C. for propylene and higher olefines, and the pressure at this stage may be any suitable pressure, for instance atmospheric or raised pressure.  In an example a mixture of ethylene and steam in the molecular proportion 18 : 1 is passed at 50 atmospheres pressure through sulphuric acid of 75 per cent at 165 DEG  C. at 8000 litres per hour per litre of acid (calculated at N.T.P.).  The concentration of the acid falls at first owing to the formation of ethyl sulphuric acid and alcohol, but is afterwards maintained at about 60-63 per cent. The alcohol is separated from the unchanged ethylene which is then returned to the process.  In another example, a mixture of ethylene and steam in the molecular proportion 14 : 1 is passed at 50 atmospheres through phosphoric acid of 90 per cent at space velocity 6000 at 240 DEG  C.
Patent GB-1471246-A (GB)
Title: Bearing determination using secondary surveillance radar
IPC: G01S13/933
Filed: 1975-06-16
Abstract: 1471246 Radio navigation LITCHSTREET CO 16 June 1975 [21 June 1974] 25612/75 Addition to 1407092 Heading H4D In an additional use of the signals provided by the system described in Specification 1,407,092, the bearing angle #<SP>1</SP>, Fig. 2, of the other transponder is calculated using the signals indicating the time of reception of the SSR north reference pulses and the signal N representing the interval between successive such signals and thus the rotational period of the SSR beam scan, together with the replies from the other transponder. In the additional circuitry of Fig. 8 the several successive transponder replies are fed to an envelope detector 150 to produce a signal which stops a timer 152 started by the previous received north reference pulse (line 154). This gives an interval signal L indicating the time the beam takes to sweep from north to the other transponder. A divider 156 produces a signal representing L/N which is converted to angle #<SP>1</SP> by x 360 degree function generator 162.
Patent GB-328180-A (GB)
IPC: H04J1/00
Filed: 1929-08-22
Abstract: 328,180. Telefunken Ges. f³r Drahtlose Telegraphie. Oct. 15, 1928 [Convention date]. Multiplex signalling systems of the kind employing a single carrier wave modulated by a number of secondary frequencies. The carrier source a is coupled by lines b<1> - - b<3> to three separate amplifiers c<1> - - c3 each of which is modulated by a secondary source d<1> - - d<3> of different frequency. These frequencies are supersonic for telephony, and may be audible for telegraphy. The three amplifiers may feed the same aerial or separate aerials e<1> - - e3.
Patent GB-920747-A (GB)
Title: Carbon conductor roll for electrolytic pickler
Inventor: DAVIES ROBERT HARKNESS
IPC: C25D7/06
Filed: 1960-07-22
Abstract: 920,747. Carbon electrode rollers; couplings between relatively movable conducting parts. HEAD, WRIGHTSON & CO. Ltd. July 22, 1960, No. 25670/60. Classes 38 (1) and 41. In the manufacture of tin sheet, the cleaned and annealed sheets which are to be tinned are fed into an electrolytic pickling tank 2 (see Fig. 1) and are advanced through the solution 3 by means of a series of rolls, arranged in pairs and made up of guide rolls 1 and 18 at each end of the tank and intermediate pairs of rolls 4, 5, 8, 9, 12 and 13 of which 4, 8 and 12 are negative carbon conductor rolls, so that the sheets become cathodic and receive a positive current from anodes 14 placed in the tank; rubber rolls 17 squeeze any excess pickling solution from the sheets and a water spray 20 keeps the sheets' surfaces wet. The carbon conductor roll (see Fig. 2) comprises a carbon roller body 21 with stub shafts 22 cemented at each end directly into the body, and brush elements which bear directly against the surfaces of the roller body at each end so as to make direct electrical contact therewith as it revolves. The elements may be split carbon blocks 24 held in grooves 25 by resilient ties such as rubber rings 28.
Patent GB-601490-A (GB)
Title: Improvements in or relating to apparatus for measuring the thickness of non-magneticcoatings on magnetic articles
IPC: G01B7/06
Filed: 1945-10-03
Abstract: 601,490. Magnetic tests and measurements. GENERAL ELECTRIC CO., Ltd., TURNER, H. C., HARTLAND, G. W., and LEONARD, J. L. Oct. 3, 1945, No. 25700. [Class 37] The thickness of non-magnetic coatings on magnetic materials is measured by apparatus comprising a single pair of polepieces 2, 3, Fig. 1, in the air-gap of which a coil 1 energized from a D.C. source 11, 12 is movable. One or both the polepieces have an extension 7, 8 adapted to be placed upon the non-magnetic coating under test, and one or both polepieces is/are magnetically polarized so that the flux passing across the air gap and hence the deflection of the spring-biassed coil 1 is dependent upon the thickness of the non-magnetic coating. As shown, the polarization is effected by coils 9, 10 energized from the same D.C. supply 11, 12, but, alternatively, a permanent magnet. Fig. 2 (not shown) may be used. Fig. 3 shows an arrangement where the polepieces 2, 3 are polarized by permanent magnets 18, 19, magnetic shunts 20, 21 being adjusted until normally no flux links the coil 1. When the single polar extension 7 is then placed on a non-magnetic coating the magnetic balance is upset and a deflection produced dependent on the coating thickness. The moving coil current or, according to the Provisional Specification, the polarizing current may be adjustable for setting purposes. Specification 378,983 is referred to.
Patent GB-1249208-A (GB)
Title: Washing apparatus for open ended ampoules, vials or the like
Inventor: PRICE RUDOLPH NASH
IPC: B08B9/34
Filed: 1969-05-20
Abstract: 1,249,208. Washing ampoules. R. N. PRICE. 20 May, 1969 [9 Oct., 1968], No. 25739/69. Heading B8T. [Also in Division F2] In washing apparatus for open-ended ampoules, vials and the like, a rotatable disc control valve device gives in one revolution of the valve disc repeated flow cycles for at least two different fluids. The valve comprises a housing 40 having a seat with angularly-spaced ports (Fig. 5), including a drain port, and a valve plate 130 (Fig. 8) rotatable on the seat and also having a set of angularly-spaced ports. As applied in an apparatus for washing glass ampoules, the ampoules A, Fig. 2, are placed upside down in a transfer plate 20, by placing a rack over a box of ampoules and inverting the box. The necks of the ampoules are aligned with hollow needles 26 by conical seats 24 in a threading plate 22. These needles are connected into a manifold 28 mounted on the valve housing 40. This housing includes a washwater inlet 50, Fig. 6, connected with three ports 56, 58, 60 in the seat on a radius a. A steam or air inlet 64 is connected with four ports 72, 74, 76, 78 on the same radius a. In addition, there is a rinse-water discharge port 84 on a smaller radius b and a drain port 90 on a larger radius c. In the valve plate, Fig. 8, there is composite port 140 on the radius a made up of a cluster of separate small ports, for co-operation in turn with the wash-water and steam ports in the seat. On the radius b are three ports 142, 144, 146 co-operating with the rinse-water discharge port 84, and on the radius c five ports 150, 152, 154, 156, 158 co-operating with the drain port 90. With the arrangement shown, one complete revolution of the valve in 60 seconds provides, in twelve 5-second steps, three complete cycles of wash-water supply-drain, steam supply, rinse, followed by a cycle of drain. steam supply, drain. A cam 110 on the drive shaft 38 operates a switch (116), Fig. 7 (not shown) to energize or de-energize a drive motor 118 in one position of the disc. The ports in the seat are fitted with ring inserts 94 of P.T.F.E. on top of resilient 0-rings 92. Rings 94 may be replaced with others of different inside diameter to vary the flow rates. In a modification an isolating plug is fitted at 180, Fig. 6, in passage 54, whereby a first wash with tap water through inlet 50 may be followed by a final wash with distilled or de-ionized water through inlet 182. Two separate manifolds may be supplied from the valve through a branch connection (174), Fig. 10 (not shown).
Patent GB-169717-A (GB)
Title: Improvements in pipe-couplings
IPC: F16L37/54
Filed: 1921-09-30
Abstract: 169,717. Krause, W. Oct. 1, 1920, [Convention date]. Couplings, disconnectible; ball - and socket joints.-In pipe lines used, for example, in irrigation systems, in which pipe couplings are made by hooks engaging catches and are kept in engagement by the weight of the pipes, a hook 5 hinged to the end of one of the pipes 1 engages a rack 10 fixed to the end of the other pipe. The movement of the hook 5 may be limited by a stud 8 engaging with a slot 9. The pipe ends may have spherical abutment surfaces 3, 4, and one pipe 2 may be supported on a foot 11. To facilitate disconnection at any intermediate part of the pipe line, at least one of the coupling-members may be made movable towards the joint. In one arrangement, Fig. 4, the pivot 7 of the hook 5 is movable in slots 13 and is normally locked in operative position by a rod 17 having an eye. 16 embracing a sleeve 15 on the spindle 7, and a hook 18 engaging a stud 19. In an alternative arrangement, Fig. 6, the member 12 carrying the rack 10 may be hinged to the fitting 11 and may be locked by a pivoted rod 22 engaging a projection 21.
Patent GB-1426224-A (GB)
Title: Superconducting conducters
IPC: H01L39/14
Filed: 1973-05-31
Abstract: 1426224 Superconductors COMMISSARIAT A L'ENERGIE ATOMIQUE 31 May 1973 [21 June 1972] 25967/73 Heading H1A A superconducting conductor 1 comprises a plurality of wire or ribbon superconductive elements 2 embedded in regular spaced-apart relation in a non-superconductive matrix 3, and a composite tubular sheath consisting of an inner layer 4 of material of low thermal diffusivity, and an outer layer 5 of material of high thermal diffusivity, layers 4, 5 being concentric. Layer 4 may be of cupro-nickel, and layer 5 of copper or aluminium, the composite sheath preventing heat generated by frictional contact between conductors from reaching the elements 2. The matrix 3 is made of material the resistivity of which is selected to suit the intended use of the superconducting conductor.
Patent GB-723838-A (GB)
Title: Alkylcycloalkyl substituted dimethyl phenols and their manufacture and application, in stabilisation of natural or synthetic rubber
Inventor: LAMBERT ARTHUR
IPC: C07C37/14
Filed: 1952-10-16
Abstract: The invention comprises 2-a -alkylcycloalkyl-4 : 6-dimethylphenols in which the alkyl group has not more than 4 carbon atoms and the cycloalkyl group is cyclopentyl, methylcyclopentyl, cyclohexyl or methylcyclohexyl.  The compounds are produced by interacting in the presence of an acid catalyst 2 : 4-dimethylphenol and an a -alkylcycloalkene in which the alkyl group has not more than 4 carbon atoms and the cycloalkene is cyclopentene, methylcyclopentene, cyclohexene and methylcyclohexene.  The products are antioxidants for rubbers (see Group V).  2 : 4-Dimethylphenol may be employed in admixture with 2 : 5-dimethylphenol as starting material.  In examples, 2 - a  - methylcyclohexyl - 4 : 6 - dimethyl - phenol, 2 - a  - ethylcyclohexyl - 4 : 6 - dimethyl - phenol, 2 - a  - n - butylcyclohexyl - 4 : 6 - di - methylphenol, 2 - a  - g  - dimethylcyclohexyl - 4 : 6 - dimethylphenol and 2 - a  - methylcyclo - pentyl - 4 : 6 - dimethylphenol are obtained by reacting 2 : 4 dimethylphenol, in the presence of concentrated sulphuric acid with a -methylcyclohexene (1); a  - ethylcyclohexene (3); a  - n - butylcyclohexene (4); a  - g  - dimethyl - cyclohexene (5); and 2 - a - methylcyclopentene (6) respectively.ALSO:Natural and synthetic rubber are stabilized by incorporating therein a 2-a -alkylcycloakyl-4:6-dimethylphenol in which the cycloalkyl group is cyclopentyl, methylcyclopentyl, cyclohexyl or methylcyclohexyl (see Group IV(b)).  In examples mixes are made from pale crepe rubber, zinc oxide, barytes, stearic acid, titanium dioxide, sulphur and zinc diethyldithiocarbamate or tetramethylthiuram monosulphide. 2-a -methylcyclohexyl-4:6-dimethylphenol is employed as anti-oxidant in the first mixture and in the second 2-d-ethylcyclohexyl-4:6-dimethylphenol, 2-a -n-butylcyclohexyl-4:6-dimethylphenol, 2-a -r-dimethylcyclohexyl-4:6-dimethylphenol or 2-a -methycyclopentyl-4:6-dimethylphenol.
Patent GB-1262828-A (GB)
Title: An installation comprising a current converter comprising semiconductor rectifier elements and a monitoring arrangement for the current converter
IPC: H02H7/122
Filed: 1970-05-29
Abstract: 1,262,828. Protecting thyristor circuits. SIEMENS A.G. 29 May, 1970 [31 May, 1969], No. 26077/70. Heading H3T. [Also in Division H2] In or for a current converter comprising semiconductor rectifiers, a protective circuit contains a resistor r1 and capacitor k5 arranged to provide a thermal representation of the characteristic of the barrier layer of one of the rectifiers, the circuit being fed with a current proportional to the current fed to or supplied by the current converter and a threshold device K arranged to provide an indication when the voltage across the capacitor k5 has reached a predetermined value and including a variable resistance element (e.g. transistor p5) arranged to compensate for frequency variation. As shown, current transformer m monitors the A.C. fed to a rectifier supplying a thyristor inverter (Fig. 1, not shown) the output being rectified at n1 and used to charge capacitor k5 via r1 which provides a thermo representation of one of the converting elements. The rate of charge is adjusted in dependence of frequency by transistor p5 which is modulated by p6 by pulses derived from the trigger pulses of the thyristor. If the supply current is excessive, capacitor K5 will charge sufficiently to break down Zener diode n5 which triggers a bi-stable or monostable circuit K which cuts off the thyristor trigger pulse and opens contacts on the A.C. side of the converter. A further Zener diode n4 permits instantaneous cut off in the event of serious overloads. In Fig. 2 (not shown) transistor p6 is omitted and p5 connected in shunt with k5.
Patent GB-1008865-A (GB)
Title: Improvements in or relating to methods of and apparatus for transferring liquids under remote control
Inventor: AMAURY PAUL
IPC: G21F7/06
Filed: 1962-07-09
Abstract: 1,008,865. Raising liquids by gaseous pressure. COMMISSARIAT A. L'ENERGIE ATOMIQUE. July 9, 1962 [July 8, 1961], No. 26245/62. Heading F1R. Liquid is displaced from a tank 14 by air pressure created in a tank 11 by introducing liquid into the tank 11. In a further embodiment liquid is displaced from either of two tanks by air pressure created by introducing liquid into the other tank. The liquid in the tank 14 may be radio active liquid and that side of the apparatus is protected by a screen 3.
Patent GB-299976-A (GB)
Title: An improved chest, cabinet, or receptacle for supporting and housing wash-tub, wringing machine, and other domestic washing appliances
IPC: A47B77/12
Filed: 1927-10-06
Abstract: 299,976. Barraclough, J. H. Oct. 6, 1927. Cabinets.-A cabinet for housing a dolly-tub 1, dolly 3, mangle 5, washing-board 2 and other domestic washing appliances comprise a removable top Y, a back B', side members A, B, Fig. 1, and a removable front H, Fig. 3. The side members are provided with dowel pins C and upper and lower tie rods D, E, Fig. 1, and the front can be held in position by bolts, by spring-pressed catches, or by studs-engaging in slots in the side members. The dolly-tub stands on the lower tie rods, and the mangle, when not in use, is laid flat on the upper tie rods.
Patent GB-431047-A (GB)
Title: Method and equipment for transmitting electrical test values
IPC: G08C15/00
Filed: 1933-09-25
Abstract: 431,047. Signalling over power circuits. REGLI, E., Oerlikon, and SULZER, H., 19, Streulistrasse, Zurich, both in Switzerland. Sept.25, 1933, No. 26414. Convention date, Sept. 27, 1932. [Class 40 (i)] Test measurements are transmitted over power lines by means of the stray flux in transformers having the secondary or low tension winding connected in delta with the transmitter G, the receiver E being similarly connected to the power lines. The centre limb of a three-phase balanced core may have its phase winding connected to a tunable impedance Z. In a single phase system the mid-points of the transformer windings are brought out and connected to earth through impedances. Reference has been directed by the Comptroller to Specification 385,427, [Group XXXV].
Patent GB-1148943-A (GB)
Title: Improvements in or relating to gas burners
Inventor: DAVIES RANDALL GOUGH
IPC: F23D14/26
Filed: 1966-06-14
Abstract: 1,148,943. Gas burners. GEO. BRAY & CO. Ltd. 10 May, 1967 [14 June, 1966], No. 26426/66. Heading F4T. A flamestrip for an aerated burner is constructed of a single sheet of steel to provide two relief chambers 12 having auxiliary parts 13 and a raised surface 10 with main outlet ports (11), the chambers 12 also having restrictor inlet ports 14 so dimensioned with respect to the auxiliary ports 13 that stable flames are formed to prevent flame lift-off at the main ports.
Patent GB-250845-A (GB)
Title: Improvements in or relating to devices for mixing cocktails or other drinks
IPC: A47J43/27
Filed: 1925-10-23
Abstract: 250,845. Cooke, H. J. D. Oct. 23, 1925. Mixers shaken in the hand. -A cocktail shaker comprises a container A, a detachable cover B formed with a pouring spout, and a cap E, all made of glass. The cover may be provided with a strainer C, and a groove D' may be provided in the cover C, or cap E, to permit the escape of gas.
Patent GB-1061721-A (GB)
Title: Improvements in or relating to motion picture projectors with automatic edgewise film threading and loop forming mechanism
IPC: G03B1/56
Filed: 1963-07-27
Abstract: 1,061,721. Cine projection apparatus. JM DEVELOPMENTS Inc. July 27, 1963 [July 27, 1962], No. 26741/63. Heading G2E. In a cine projector for sub standard film, film is laterally positioned by a channel slightly wider than the film, there being formed on covers 12, 13 frusto-conical guide surfaces 15, 16 adjacent the channel which guide the film to slide laterally when tensioned into the channel to take up a straight path within the slot 14 defined by the covers. In operation, film is manually drawn from reel 20, passed laterally into slot 14 and attached to take up reel 23 whose subsequent rotation then tensions the film which slides into channels formed in or adjacent to, sprocket 30 and roller 32, as in Fig. 4 (not shown). When the motor is started, slides 43 and 44 move to the left and right respectively, sprocket 53 is halted, while sprocket 30 feeds film into the system. The straight film length is thereby formed into the looped path 22C as in Fig. 5 (not shown). Sprocket 30 is driven through gears, and the intermittent claw pull down is driven directly, by an electric motor. The hold back sprocket 53 is driven from the ring gear of a differential mechanism of the planetary gear type which may alternatively and selectively drive the slides 43, 44 through the planetary gear. Selection is achieved by a brake-shoe which may be pressed against a drum attached to the ring-gear to prevent rotation of sprocket 53. A snap-action bow spring gives two stable positions of the brake-shoe lever, the brake being released to permit film transport as soon as the film loops are formed by slides 43, 44. The gear mechanism is described in detail with reference to Figs. 6 and 7 (not shown). Sound reproducing drum 42 of an optical sound reproducing system, is driven at a constant speed by frictional contact with a small high-speed flywheel 141 whose shaft 140 rotates in bushings 146-146 of porous sintered bronze charged with a viscous silicone oil to allow some rotational slip. Exact synchronism between the constant speed of the film passing over drum 42 and the intermittent motion at the claw feed is achieved. Lamphouse 150 provides the scanning light beam for sound reproduction. Means are provided to stop the projector automatically if the film is improperly threaded or presented, light 11a giving visual warning. Eccentric idler roller 49 initially forms the correct loop length and also acts to restore this length if the loops is lost due to damaged film perforations. For rewinding the film is passed over idler-roller 165 and attached to the supply spool again and motor 60 driving spindle 21 is reversed, as in Fig. 2 (not shown), for high speed re-wind. The optical projection system includes lamp 100, aperture plate 40 with guide projections 40A mounted on a casing 41 containing the intermittent movement and a sector blade shutter, pressure plate 35 with guide pins 35A, and projection lens 33.
Patent GB-140719-A (GB)
Title: Improvements in engine starting mechanism
IPC: F02N1/02
Filed: 1919-10-31
Abstract: 140,719. Martin, A. D. Oct. 31, 1919. Turning-gear.-In an engine-starter arranged to disconnect the starting-handle if the engine starts backwards, a pinion b fixed on the spindle b<1> engaged by the starting-handle is geared to a pinion c on the engine shaft by a pinion d carried by a pivoted arm e and held in mesh with the pinion c by a spring e<4>. A cam ring f<6> is connected to the engine shaft by a one-way clutch and is engaged by the nose e<3> of the arm c. If the engine starts backwards, the ring f<6> rotates and lifts the arm c, taking the pinion d out of mesh. The arm e is then held by a spring plunger g until this is released by hand.
Patent GB-743700-A (GB)
Title: Improvements in or relating to electric condensers
IPC: H01G4/28
Filed: 1953-09-30
Abstract: 743,700. Electric capacitors. STEATITMAGNESIA AKT.-GES. Sept. 30, 1953 [Oct. 4, 1952], No. 26877/53. Class 37. In a capacitor comprising a ceramic body of high dielectric constant provided with electrode coatings the body is provided with at least one strip of a glaze of low dielectric constant so arranged that the entire periphery of at least one of the electrode coatings lies on glazed areas so preventing glow discharges. In one embodiment (Fig. 1) a tube 1 of ceramic containing barium titanate has a ring 2 of a glaze not softened by the electrode burning-on process containing e.g. boron or lead silicate at each end, an inner silver electrode 3 burnt on the inside of the tube and extending at one end on to the outside ring of glaze 2, and an outer electrode 3 terminating on glaze rings 2 at both ends. In a further embodiment having one plate earthed a ceramic disc has a peripheral coating of glaze on one face overlapped by the periphery of a circular electrode coating, the other electrode being applied directly on the disc. Three stovings are used in the process, one for the ceramic, a second at higher temperature for the glaze and a final one for burning on the electrodes.