baber/WOPTO huggingface dataset:
Patent GB-713344-A (GB)
Title: Preparation of hexamethylenediamines
Filed: 1951-09-25
Abstract: Hexamethylene diamines are prepared by a process comprising reacting a cyclohexeneozone-aliphatic alcohol reaction product with a compound of formula <FORM:0713344/IV (b)/1> in which R and R1 are hydrogen or hydrocarbon radicals and with hydrogen in the presence of a hydrogenation catalyst.  The aliphatic alcohol contains not more than 4 carbon atoms.  Suitable hydrogenation catalysts are cobalt and nickel and they may be supported on kieselguhr, silica or carbon. The hydrogenation may be carried out at temperatures in the range 50-130 DEG  C. and preferably at pressures of at least 50 atmos.  In the preparation of hexamethylenediamine, cyclohexene is dissolved in the alcohol and the solution cooled to below 20 DEG  C.  Ozone in the form of an oxygen-ozone mixture is then introduced into the cold cyclohexene solution.  To the solution of cyclohexene-ozone-alcohol reaction product thus formed is added an excess of liquid ammonia and a hydrogenation catalyst is added.  The mixture is agitated and hydrogen is passed into the reaction vessel until the absorption of hydrogen ceases.  The mixture is cooled and filtered and the filtrate fractionally distilled to separate the hexamethylenediamine.  If desired, the diamine can be separated from the filtrate as a salt by treatment with acid.  In the examples the process is carried out using methyl or isopropyl alcohols for the formation of the ozone reaction product and ammonia or methylamine as the nitrogen compound. It is stated that other primary and secondary amines may be used, e.g. dimethylamine, ethylamine, diethylamine, hexylamine, cyclohexylamine, aniline and benzylamine.
Patent GB-1146491-A (GB)
Title: Improvements in dye-sensitized photographic emulsions
IPC: G03C1/29
Filed: 1966-05-20
Abstract: 1,146,491. Carbocyanine dyes. EASTMAN KODAK CO. 20 May, 1966 [24 May, 1965], No. 22432/66. Heading C4P. [Also in Division G2] Carbocyanine dyes are described of the formula wherein R is methyl or ethyl, R<SP>1</SP> is methyl, carboxyethyl or sulphobutyl, R<SP>3</SP> is ethyl, phenyl, 2-thienyl or 4-pyridyl, R<SP>4</SP>, R<SP>5</SP> and R<SP>6</SP> are hydrogen or one is chlorine, methyl, cyano, amino or methoxy carbonyl, L is sulphur or selenium and Q completes a naphthothiazole, naphthoxazole, naphtho-selenazole, or naphthimidazole nucleus which may be substituted by chlorine, methyl, sulpho or phenyl. Dyes of this type may be prepared by the general method of Specification 466,246.
Patent GB-411322-A (GB)
Title: Auto-collimated objective for taking pictures in colours
IPC: G02B13/00
Filed: 1933-08-11
Abstract: 411,322. Photographic objectives. GROSSET, G., 64, Rue Condorcet, Montreuilsur-Bois, HUDELEY, V., 50, Boulevard Victor Hugo, Clichy, and LAGRAVE, J., 147, Avenue de Clichy, Paris, all in France. Aug. 11, 1933, No. 22457. Convention date, Aug. 16, 1932. [Class 97 (i).] An objective for taking photographs in colour on lenticulated films consists of a selfcollimating system of lenses having its exit pupil at infinity. The selecting colour screen is placed in the plane of the entrance pupil. Data are given for the system shown having an aperture of f /2, this system being achromatized for three different wave-lengths and corrected for astigmatism, distortion and coma. Specification 10611/09, [Class 98 (ii)], . is referred to.
Patent GB-733464-A (GB)
Title: Improvements in or relating to apparatus for removing waste threads from thread carriers in textile machines
IPC: B65H73/00
Filed: 1953-08-14
Abstract: 733,464. Stripping bobbins. STUTZ, W., and STUTZ, H., [trading as STUTZ & CIE.]. Aug. 14, 1953 [Aug. 16, 1952], No. 22485/53. Class 120(3). Waste threads are stripped from thread carriers by means of a rotatable drum having a perforated cylindrical jacket, adapted to unwind the waste from the carrier, within which is formed a chamber, e.g. a slotted pipe, supplying a stream of air which discharges through the drum to prevent winding of the waste threads therearound. In using the apparatus shown, a drum, comprising a jacket 1 provided on its outer face with a friction covering 11 e.g. felt, fabric, or grooved rubber, end walls 2, and supporting hubs 3, and a blower comprising blades 10 mounted on a shaft 4 are rotated in the same direction or in opposite directions and the air stream produced by the blower is urged through a slot 9 in a pipe 6, the angular position of which may be adjusted, and forced through slots 12 of the jacket 1 to loosen waste threads therefrom and convey these threads towards a waste collector (not shown). The ends of the waste threads are initially brought into contact with the covering 11 by mechanical or pneumatic means.
Patent GB-1006069-A (GB)
Title: Improvements in or relating to taps or valves
Inventor: MORGAN CYRIL OSCAR BEADON
IPC: F16K1/02
Filed: 1961-06-21
Abstract: 1,006,069. Valves. R. W. G. LOVE. Sept. 12, 1962 [June 21, 1961], No. 22486/61. Heading F2V. A valve comprises a casing 1 having an internal seating 5, a plug 8 having an outflow passage 9, a sealing element 11 carried by the plug, a valve body 15 movable axially within the casing and provided with two axially spaced sealing surfaces 16, 17 one of which is engageable with the seating 5 while the other is engaged at the same time with the element 11, and a spindle 13 rotatable to effect axial displacement of the body 15. The portion of the plug 8 which projects from the casing 1 has flats for engagement by a spanner while the upper end has a recess to accommodate an antisplash disc 10 and the element 11, the disc having a thin perforated central portion and an annular boundary portion of increased thickness. A gland 4 having upper and lower discs 14 of metal is compressed between a closure head 12 and a rib 3. In a modification, the parts 16, 17 are omitted and the body 15 has an end portion of reduced diameter to engage the element 11. In both constructions the latter element may be replaced by unscrewing the plug 8 while the valve body is in engagement with the seat 5.
Patent GB-953881-A (GB)
Title: Low-power-deflection cathode ray tube
IPC: H01J29/80
Filed: 1960-06-27
Abstract: 953,881. Cathode-ray tubes. RADIO CORPORATION OF AMERICA. June 27, 1960 [July 7, 1959], No. 22514/60. Heading H1D. In a cathode-ray tube comprising an elongated neck 14 in which an electron beam is produced, a faceplate 16 and an interjacent cone 18, a multi-apertured electrode 46 is disposed across the beam path immediately following the deflection region 48, so that the beam may be projected through the deflection region at low velocity and immediately afterwards accelerated towards the faceplate by a radially divergent electrostatic field between electrode 46 and a conductive coating 44 on cone 18. The grid 46 may be flat, but as shown, it is hemispherical and produces, in conjunction with wall coating 44 and aluminium layer 27 on phosphor layer 26, a radial electrostatic field which supplements the principal deflection field provided by yoke 42. However, by suitable shaping, grid 46 may also be used to correct various forms of raster distortion. In particular a grid of the shape shown in Fig. 6 corrects pincushion distortion. Furthermore, a grid curvature can be established for any particular tube to achieve invariant picture size with screen potential variation, e.g. in a colour kinescope which depends upon differences of electron penetration of a plurality of phosphor layers to produce colour modulation. By varying the voltage on anode 36, the beam focus may be varied without effect on deflection sensitivity, so that an inexpensive permanent magnet may replace the electrostatic focusing lens and a touch-up signal voltage can be applied to anode 36 so that the focus force varies with the beam spot position on the raster. Instead of being secured to glass rods 40 which support the electron gun electrodes, grid 46 may be supported by the faceplate end of a frusto-conical ring secured to the envelope. Grid 46 may comprise a woven mesh or a late formed with apertures tapering towards anode 36 so that secondary electrons are confined to the electron gun side of the grid and are collected by anode 36.
Patent GB-502726-A (GB)
Title: Combined device for controlling both the braking and the power of the engine or motor of an automobile
IPC: G05G9/08
Filed: 1937-08-17
Abstract: 502,726. Fluid-pressure servomotorcontrol systems ; valves. VAU, J. B. P. Aug. 17, 1937, No. 22536. Convention date, Aug. 18, 1936. [Class 135] [Also in Groups XXXI and XXXIV] According to the Specification as open to inspection under Sect. 91 a pedal 1, Fig. 7 (Cancelled), is connected to a lever 40 pivoted at 41 and connected by links 42, 44 to the throttle valve 2 and brake shaft 3. The valve casing 47 is formed with surfaces p-q, r-s concentric with the valve spindle so that while the pedal is moving in the braking range I-II the throttle remains closed but opens in the range II-III. In the construction shown in Fig. 8 (Cancelled), the pedal 1 controls a fluid pressure servomotor 54 which rocks an arm 51 connected by lost-motion linkages 40, 50 and 67, 68 to the throttle 2 and brake-shaft 3, the lost motions providing the necessary separation between the throttle and brake actuation. An arm 62 connected to the pedal 1 slides a valve rod 56 in the hollow rod 52 of a piston'53 so aa to control ports 59 in the rod 52. The piston 53 is normally forced downwards by a spring 55 and rocks the arm 51. Inlet and outlet ports 57, 58 are formed in the cylinder 54 for the working fluid. In the position shown the ports 59 are open and fluid circulates freely through the cylinder. If the valve rod 56 is raised the ports 59 are closed, pressure builds up. under the piston, and the piston is raised following up the rod 56 until the ports are open again and a new position of equilibrium obtained. The servo-motor is such that there is no reaction on the pedal. This subject-matter does not appear in the Specification as accepted.
Patent GB-691127-A (GB)
Title: Improvements in and relating to luminescent calcium halophosphate phosphors
IPC: C09K11/08
Filed: 1950-09-13
Abstract: 691,127. Luminescent materials. THOR N ELECTRICAL INDUSTRIES, Ltd. Sept. 13, 1950 [Sept. 13, 1949], No. 22551/50. Class 39(i). A method of preparing a luminescent calcium halophosphate phosphor containing combined chlorine as chloride, comprises firing a mixture of ingredients in which substantially all chloride present is in the form of ammonium chloride. In an example described ammonium chloride, calcium carbonate, secondary calcium phosphate, antimony oxide or an antimony salt which can be reduced to the oxide on firing and if desired a manganous salt (manganous carbonate referred to) which can be reduced to the oxide on firing, and calcium fluoride are intimately mixed and fired. Proportions of constituents are given. The gram atom ratio of calcium plus manganese to phosphorus should be about 4.85 to 3 for maximum brightness. The mixture is fired, preferably in covered crucibles, at 1090‹C for 6 hours and the resulting mass is powdered and, if necessary, milled. The secondary calcium phosphate is prepared as described in Specification 684,025. The emission colour is approximately 3500‹K white.
Patent GB-1460739-A (GB)
Title: Means for restraining oscillation in a chimney
IPC: F23J13/00
Filed: 1973-05-11
Abstract: 1460739 Chimneys ENERGY FABRICATIONSLtd 3 May 1974 [11 May 1973] 22681/73 Heading F4J [Also in Division F2] In a chimney with a shell O and one or more inner flues F, oscillation damping, devices Q are arranged to act between the shell and the flue or flues restraining relative movement, each device comprising a braking member urged by resilient means against a bearing surface. As shown each device includes a pivot block M mounted on a removable part C of the shell O and a pivot pin P on the block and carrying a brake shoe A and a leaf spring S, the latter being so disposed as to urge a lining W on the shoe A against a brake pad B in the wall of the flue F. Where there is internal access to the chimney (Fig. 3) the removable part C is omitted and the brake shoe A and spring S are spaced from the shell O by blocks. The invention is shown applied to a triple flue chimney (Fig. 4) and a chimney with two D-section flues arranged face to face (Fig. 5). Specification 1,452,892 is referred to.
Patent GB-1466625-A (GB)
Title: Indexing disc with adjustable tappets for time switches
IPC: G04C23/10
Filed: 1974-05-21
Abstract: 1466625 Time switches LICENTIA PATENT VERWALTUNGS GmbH 21 May 1974 [24 May 1973] 22692/74 Heading H1N A timing disc 1 has a thickened edge 2 around which the legs 5a, 5b of adjustable U-shaped tappets 5 grip, each tappet having a rib-like projection 8 which engages teeth (4, Figs. 2 and 3, not shown) on the periphery 3 of the disc 1. The tappets are made from plastics material and the resilience of the legs provides a snap fit. Each tappet has a switching lug 7 moulded offcentre so that turning a tappet 180 degrees may change it from switching on to switching off, or vice versa. The tappets may be tilted to a position (Fig. 3, not shown) wherein portion 5<SP>1</SP>a of leg 5a seats on the shoulder of periphery 3 and the projection 8 is clear of the teeth (4), allowing easy angular adjustment around disc 1.
Patent GB-1042889-A (GB)
Title: Means for draining fluid from storage containers
Inventor: BENGTSSON BO
IPC: F17C9/00
Filed: 1963-06-07
Abstract: 1,042,889. Centrifugal pumps. O.LORENTZEN. June 7, 1963, No. 22709/63. Heading F1C. A container 1 for a liquid such as a liquefied gas, which is surrounded by a heat insulation lining 2, is drained by a pump 5 which, together with its driving motor 6, is housed in a fluidtight and pressure-resistant chamber 4 provided with an access door at 15. The chamber 4 is filled under a certain pressure with a preferably non-combustible fluid which is above its freezing point at the temperature of the liquid stored in the container 1. Suitable fluids are brine, glycol, and gaseous carbon dioxide and nitrogen. If the fluid is a liquid, the pressure can be applied by a rising pipe 7 provided with an expansion vessel 8. The vessel 8 and the pump discharge line 12 are located outside the insulation lining 2 (the drawing being merely diagrammatic in this respect). The pump 5 drains the container 1 through a shut-off valve 10. It can also be used for draining the space 3 between the container 1 and the insulation lining 2, via shut-off valves 13, 14 and the interior of the chamber 4. The motor leads 9 pass through the pipe 7. The chamber 4 may be located within the container 1, with the pipe 7 extending through the top of the container. The motor 6 may be placed outside the insulation lining 2, with its shaft passing through the lining.
Patent GB-461325-A (GB)
Title: Improvements in or relating to electrical oscillation generators for use for examplein generating oscillations of saw tooth wave form
IPC: H03K4/26
Filed: 1935-08-12
Abstract: 461,325. Valve generating circuits. BULL, C. S., and PERCIVAL, W. S. Aug. 12, 1935, No. 22725. [Class 40 (v)] A blocking oscillator, particularly for supplying saw-tooth current to the deflecting-coils of a cathode-ray tube, comprises a condenser in the grid circuit of a valve arranged to be charged through a resistance and discharged through a unilateral conductor (e.g. a diode valve), which is maintained non-conductive during the charging period by voltage derived from the plate circuit of the valve. As shown, two series condensers 16, 22 are charged through resistances 15, 20, 21 from the potential source connected between the positive terminal 8 and earth. The condenser 22 is in the grid circuit of the valve 1, and as its charge increases the grid becomes more positive and the plate current increases. The growth of plate current acts through a reaction transformer 11 to impose a steady positive voltage on the cathode 12 of the diode valve 13, the anode of which also becomes increasingly positive as the condensers 16, 22 become charged. As the diode begins to conduct the grid voltage and the plate current of the valve 1 increase less rapidly, and the transformer 11 applies a lower positive voltage to the cathode 12, so that the diode current increases. This action is cumulative and the condensers discharge rapidly. The valve 1 is preferably of the pentode type, with its control grid biassed by a resistance 3 through a grid leak 23. The plate circuit includes a resistance 10 and the primary A B of the reaction transformer 11. Output current is taken to the deflecting- coils directly or through a transformer 18 from a circuit connected across the valve and including a condenser 19 and a resistance 20, the latter providing negative reaction to the grid. In a modification, the diode is reversed and its cathode is connected through the resistance 15 to a negative source. Synchronizing voltage may be applied to control grid, screen-grid, or cathode of the valve 1, or to the cathode of the diode 13. Specification 451,204 is referred to.
Patent GB-1341124-A (GB)
Title: Semiconductor device
IPC: H01L21/00
Filed: 1971-04-19
Abstract: 1341124 Ohmic contacts to semi-conductors LICENTIA PATENT - VERWALTUNGSGmbH 19 April 1971 [3 March 1970] 22737/71 Heading H1K An ohmic contact to a semi-conductor, e.g. silicon body consists of a layer of chromiumvanadium alloy immediately adjacent the silicon. The alloy layer which preferably includes 35-40% by weight of vanadium may be formed by codeposition. In the example the alloy is coated with a layer of nickel (deposited in vacuo). A layer of silver is soldered to the nickel and may carry further layers of gold and chromium, though either the gold or the chromium layer may be omitted.
Patent GB-150180-A (GB)
Title: Improvements in tool drawers for sewing machines
IPC: D05B75/02
Filed: 1919-09-17
Abstract: 150,180. Kay, F. J. Sept. 17, 1919. Tables, accessory fittings for. A tool receptacle d for sewing-machine tables has an ear c through which passes a headed pin e into a hole a in the bench b, a coil spring f upheld by a washer g and cotter pin h holding the receptacle frictionally against the underside of the table top and preventing its shaking open due to vibration. The lower end of the pin e may be screw-threaded and the cotter pin replaced by two nuts or a lock-nut.
Patent GB-516403-A (GB)
Title: Improvements in the manufacture and production of hydrocarbons from carbon monoxide and hydrogen
IPC: C07C1/06
Filed: 1938-08-02
Abstract: 516,403. Catalytic apparatus ; catalysts. JOHNSON, G. W. (I. G. Farbenindustrie Akt.- Ges.). Aug. 2, 1938, No. 22865. [Class 1 (i)] [Also in Group IV] In the catalytic production of hydrocarbons containing more than 2 carbon atoms from carbon monoxide and hydrogen in the presence of a liquid medium (which may be the reaction product) the medium is passed along the outside of the catalyst chamber, preferably in counter-current to the direction of the reactants within, and is then passed through the catalyst chamber in the same direction as the reactants. In the apparatus shown, Fig. 3, the gaseous reactants enter the catalyst tubes K at N and leave at O, and the liquid medium enters at L and leaves at O ; the reactants may be mixed with the liquid medium before entering the tubes K. In an example the gas mixture is preheated in a heater T, Fig. 4, and led at 120 atmospheres through a supply pipe N into the catalyst tube K. The liquid medium is pumped by a pump P from a separator B through a preheater H and enters at L into the annular space M and thence into 'the catalyst tube K. The catalyst may be made by sintering or fusing iron powder containing small additions of titanium oxide, manganous oxide, and potassium hydroxide in a current of oxygen and then treating with a current of hydrogen at 650‹C. The reaction products and the liquid medium leave at O and pass through a cooler S to the separator B from which uncondensed gases pass .through a cooler R and oil-washer C to separate further benzine hydrocarbons.
Patent GB-1118972-A (GB)
Title: Centrifuge
Inventor: HOWELL JOHN DONOHOE
IPC: B04B15/08
Filed: 1966-05-24
Abstract: 1,118,972. Centrifugal strainer. STRUTHERS SCIENTIFIC & INTERNATIONAL CORP. 6 April, 1967 [24 May, 19661, No. 23044/66. Heading BID. In a horizontal-axis centrifugal strainer (Fig. 1. not shown) from whose basket 32, 46 solids material is discharged over lip 39 by a differentially rotating helical screw (18), the tendency for air to circulate from wash-liquid receiving chamber 99 to solids receiving chamber 112 through gap 140 is counteracted by opposed screw threads 136, 138 which tend, when the basket is rotated, to produce flow in the other direction. The strainer is used to remove ice crystals from coffee liquor. Slurry is delivered to the closed end of the basket by pipe (70) and apertures (82) in screw (18), which extends only part way along the basket. The basket is lined with slotted screen of minimum aperture dimension 0.008 inches. A wash liquid nozzle (86) is provided near lip 39, and separated mother liquor and wash liquors are separately collected in chambers (98), 99. Chamber (98) has spaced reverse-flour liquid nozzles 100, for cleaning the basket, and chamber 112 has a water spray (122) (Fig. 2, not shown) to aid solids removal. The basket and screw are rotated to produce 1000 to 1500 g's and at a differential speed of 2 to 10 r.p.m., by respective belt drives connected by gears to a common motor. The basket could be conical.
Patent GB-444787-A (GB)
Title: A method of surface-sizing paper with animal glue
IPC: D21H17/22
Filed: 1935-08-16
Abstract: Addition compounds of formaldehyde and urea or thiourea are obtained by mixing the components in the cold.  The reaction causes further cooling of the mixture.  Formaldehyde is given off from the products at 70 DEG  C.ALSO:Paper is sized by passage through a bath containing animal glue and a hardening agent, and is then passed over steam-heated calenders.  The hardening agent consists of an addition compound of urea or thiourea and formaldehyde or trioxymethylene prepared in the cold, which compound gives off formaldehyde at a temperature of about 70 DEG  C.  Examples are given.
Patent GB-417890-A (GB)
Title: Improvements relating to weighing scales
IPC: G01G1/18
Filed: 1933-08-18
Abstract: 417,890. Weighing-apparatus. BRECKNELL, Ltd., C. W., and BRECKNELL, C. W., Mozart Works, Ombersley Road, Sparkbrook, Birmingham. Aug. 18, 1933, No. 23070. [Class 143.] In a weighing-scale of the kind in which a beam e is pivoted on the upper side of a hollow base containing the stay and the vertical legs g of the pan supports, the hollow base consists of cast metal and is made in two equal parts a, a<1>, each part forming one side of the base and having a central bearing c or c<1> formed integrally with it. The abutting edges of the two parts have a flanged joint b and the parts are secured together by a bolt k which also serves as the central pivot of the stay j. Projections m near the bottoms of the two parts abut against each other when the parts are assembled.