baber/WOPTO huggingface dataset:
Patent GB-1144581-A (GB)
Title: Yarn brake mechanism of two-for-one spindles
IPC: D01H13/10
Filed: 1966-05-31
Abstract: 1,144,581. Two-for-one twisting spindles. PALITEX PROJECT-CO. G.m.b.H. 31 May, 1966 [4 June, 1965], No. 24160/66. Addition to 1,132,892. Heading DID. The two-for-one twisting spindle claimed in Specification 1,132,892 is provided with a yarn brake comprising a pair of arms 21 each provided with a brake head 24, the arms being arranged to be brought together by centrifugal action on rotation of the spindle rotor to grip and brake the yarn with a force that varies with the speed of the spindle rotor. As shown the arms are pivoted about generally vertical pins 22 which diverge towards their upper ends so that when the rotor is stationary the arms move apart to facilitate threading. Two radial guide channels may be provided on opposite sides of the spindle axis each having a pair of brake arms. The braking surfaces on the arms may be flattened to increase the braking effect; alternatively they may be made undulating and complementary to make the yarn follow a serpentine path. The arms may be provided with a bore along their length, lower at the inner ends, in which a weight e.g. in the form of a quantity of mercury may move by centrifugal force.
Patent GB-866289-A (GB)
Title: Improvements in or relating to end caps for cylindrical electrical condensers
IPC: H05K7/12
Filed: 1958-07-28
Abstract: 866,289. Capacitors. TELEGRAPH CONDENSER CO. Ltd., and TODER, E. H. July 23, 1959 [July 28, 1958], No. 24201/58. Class 37. A capacitor is provided with a cylindrical cap 4 of insulating material and having apertures 5, 6 through which the leads 2, 3 of the capacitor extend. The interior of cap 4 may be frustoconical in shape and the exterior of the cap may have bosses 9 forming feet so that a gap is left between the base of cap 4 and the panel on which it is mounted. The cap may further be provided with a recess 8 to accommodate lead 3.
Patent GB-259232-A (GB)
Title: Improvements in or relating to pistons for explosion engines
IPC: F02F3/00
Filed: 1926-09-30
Abstract: 259,232. Morin, G. E. J. Oct. 2, 1925, [Convention date]. Pistons.-The body a including the gudgeon-pin bosses of a piston for an internal-combustion engine is made of cast iron. The top b is of aluminium or aluminium alloy, has grooves f for packing-rings, and is connected to the body a by grooves c therein around which it is cast.
Patent GB-871945-A (GB)
Title: Apparatus for the froth flotation of minerals
IPC: B03D1/16
Filed: 1959-07-15
Abstract: 871,945. Froth flotation apparatus. LORO & PARISINI S.p.A. July 15, 1959 [July 21, 1958], No.24311/59. Class 82(2) An air distributing and agitating device in froth flotation machines comprises an impeller A composed of an upper and lower disc connected together by radially disposed vertical blades E, said upper disc having evenly spaced notches around its periphery; a hollow shaft D affixed to the upper disc for admitting air into the space between the discs and for rotating the latter; and an annular member H to the underside of which are secured a plurality of radially disposed blades 8. The lower disc of the impeller may also have notches around its periphery as well as a number of holes arranged in a circle concentric with the disc, and may be provided with radial ribs F. Member H may have slots formed therein, and blades B are alternately long and short.
Patent GB-1217139-A (GB)
Title: Precipitating process
Inventor: ROLAND KLAUS
IPC: B01D21/01
Filed: 1969-05-13
Abstract: 1,217,139. Precipitation of solids from solutions. INDUSTRIE-FORSCHUNGSZENTRUM CHEMIEANLAGEN. 13 May, 1969, No. 24338/69. Headings B1B and B1X. A salt is precipitated from an aqueous solution by passing it down column 1 countercurrently to methanol vapour which condenses in the solution and effects precipitation of part of the salt and evaporation of some of the water; the precipitated salt is separated from the aqueous methanol in separator 2, the aqueous methanol is then passed down column 3 counter-currently to the vapour withdrawn from the top of column 1 whereby the methanol is re-vaporized together with some of the water, this vapour mixture is rectified in column 4, and methanol vapour withdrawn from the top of column 4 is recycled to the lower section of column 1. The mixture of precipitated salt and aqueous methanol, withdrawn from the base of column 1, may be cooled before it enters separator 2. Part of the methanol vapour leaving the head of column 4 is condensed, and the condensate is refluxed to that column. The salt solution in column 3 is freed from the last traces of methanol in the lower section thereof, which is provided with a heating coil, before being discharged. Water is discharged from the base of column 4. The process may be used to precipitate other solids from solutions, using an appropriate precipitating agent.
Patent GB-334041-A (GB)
Title: Improvements in apparatus for indicating the direction and velocity of the wind
IPC: B64F1/18
Filed: 1929-08-09
Abstract: 334,041. Marryat, H. Aug. 9, 1929. Anemometers; wind vanes.-Apparatus for indicating the direction and velocity of the wind comprises a vane pivoted about a vertical axis and one or more barbs or linear members pivotally connected to the vane and actuated in such a manner that the angle between each barb and the axis of the vane is a measure of the wind speed. In the form shown the vane 1 is provided at its leading end with two barbs 2 adapted to be turned about pivots 3 by chains &c. 7 attached to levers 4 and passing around pulleys 8 connected by the gearing shown to a pulley 15. A cable 16 passing round the pulley 15 is connected at its lower end to a bar 19 adapted to be displaced vertically by a screw 55 rotated by a motor 53 in accordance with the wind velocity. An anemometer wheel 21 mounted on the vane 1 controls a centrifugal device 26 which is connected by an arm 27 to a shaft 28 carrying a toothed segment 29 gearing with a pinion 30 to the shaft of which is secured a brush contact 32 forming part of a selector switch comprising also the contacts 33 - - 36, the various contacts being connected to slip rings 37 - - 41. When owing to increase of wind speed the contact 32 moves on to the contact 34 a circuit is completed which includes the coil 48 of a reversing relay and the magnet coil 51a of a contactor 51. The coil 48 closes a switch 50 and and thereby short-circuits itself so that the current through the coil 51a becomes great enough to close the switch 51 which completes the circuit of the motor 53. The motor rotates and causes the bar 19 to move downwards until it reaches the end of a contact strip 45 when the circuit is broken. The movement of the bar causes rotation of the barbs 2 to a definite position corresponding to the wind speed. When the wind speed increases sufficiently for the brush 32 to move on to the contact 35 the motor circuit is again closed to move the bar 19 downwards until it reaches the end of the strip 59, the barbs 2 being thereby moved to form a smaller angle with the vane 1. Similarlv when the brush 32 moves on to the contact 36 the bar 19 is moved downwards until a cam &c. 61 thereon opens a limit switch 60. Diminution of the wind speed causes the motor to be operated in the reverse direction by means of the relay coil 65 and contact 67, the bar 19 being thereby moved upwards through successive steps depending on the lengths of the strips 62, 69 and the position of the limit switch 70. The vane and the barbs may be illuminated, e.g. by neon tubes.
Patent GB-998268-A (GB)
Title: Emission electrode for electrostatic precipitators
IPC: B03C3/41
Filed: 1962-06-25
Abstract: 998,268. Electrostatic precipitators. SVENSKA FLAKTFABRIKEN A.B. June 25, 1962 [July 12, 1961], No. 24380/62. Heading B2J. An emission electrode for electrostatic precipitators with horizontal gas flow consists of a stamped out sheet of metal with a flat middle part or web 3a and bent or rolled up at two opposite edges, these edges being provided with a number of pressed-up parts or projections 4 serving to constitute the main emitting elements of the electrode. Figs. 2 and 3 show sections through alternative embodiments of electrode, in Fig. 2 each of the rolled-up edges 3b having pressed-up parts 4 on both sides of the electrode, and in Fig. 3 the opposite bent edges each having pressed-up parts 4 on only one side of the electrode. The electrodes may be mounted to hang vertically in rows in a precipitator and may be rapped by a hammer acting on a rapper bar connecting the lower ends of a row of electrodes, Fig. 1 (not shown).
Patent GB-819351-A (GB)
Title: Improvements in and relating to the treatment of hydrocarbons
IPC: C10G45/00
Filed: 1955-08-25
Abstract: 819,351. Purifying hydrocarbon oils. HYDROCARBON. RESEARCH Inc. Aug. 25, 1955 [Aug. 26, 1954], No. 24502/55. Class 91. Gum-forming constituents are eliminated from cracked raw gasoline fractions containing at least 20 per cent of olefins, without substantially reducing the octane number, by treatment with hydrogen at a temperature of 675- 750 F. and a hydrogen partial pressure of 50-250 p.s.i., and in the presence as catalyst of a mixture of iron and chromium oxides in which the latter is the minor component. The catalyst may contain 0.2 to 20 per cent of chromium oxide; no carrier is used. Gasoline is defined as a hydrocarbon fraction boiling in the range of 90-400‹ F. The hydrogen may be in concentrated form or may consist of at least 20 per cent pure hydrogen together with carbon oxides, methane and steam. From 300-3000 SCF/B of hydrogen may be supplied to the treating zone and the feed rate of gasoline to the zone may be 1-5 v.v./hour. The catalyst may be pretreated partially to reduce it to the metallic state. Specifications 646,532, 731,838 and U.S.A. Specification 2,702,267 are referred to.
Patent GB-747332-A (GB)
Title: Improvements in lock-stitch sewing machines
IPC: D05B73/12
Filed: 1954-08-25
Abstract: 747,332. Sewing-machines. DURKOPPWERKE AKT.-GES. Aug. 25, 1954 [Sept. 14, 1953], No. 24684/54. Class 112. A lock-stitch sewing-machine in which one needle may be held out of action temporarily, as for turning sharp corners, has means operable at will for re-winding on to the bobbin below-the needle which has been inoperative, thread which has been drawn from said bobbin during continued operation of the other needle. The loop-taker 7 for the inoperative needle is journalled in a bracket 8 situated under the throatplate 3. A bearing sleeve 12 carried by bracket 8 contains a vertical hollow shaft 14 formed at its upper end with a plate 15 and having coupled to its lower end by means of a slip friction clutch 17 a hand-operable crank 16. A spindle 20 journalled in shaft 14 carries at its upper end a milled-edge wheel 21, and has coupled to its lower end by means of a slip friction clutch 22 an arm 23 engageable by the crank 16. Wheel 21 is permanently engaged with a resilient wheel 29 journalled in plate 15. Initial movement of crank 16 rotates shaft 14 against the bias of a torsion spring 24 to move wheel 29 through an opening in the bobbin case 10 and into driving engagement with a flange of the bobbin 11, said movement being adjustably limited by means of an abutment screw 27 carried by plate 15. Continued movement of crank 16 serves to rotate spindle 20 and thereby the bobbin for re-winding the loop of thread. The clutches are respectively set to slip when wheel 29 engages the bobbin and when the taut bobbin thread arrests further driving of the bobbin.
Patent GB-389742-A (GB)
Title: Improvements in means for packing eggs and similar fragile objects
IPC: B65D85/32
Filed: 1932-09-05
Abstract: 389,742. Cartons for eggs or similar fragile objects. ISACSON, O. L., 3B, Postgatan, Gothenburg, Sweden. Sept. 5, 1932, No. 24692. [Class 18.] In means for packing eggs or like fragile objects of the kind made from a single blank provided with a number of parallel crease lines dividing the blank into sections, one or more of which have seats for the eggs while the, others form a rectangular casing surrounding the seats, the sections formed with the seats extend in the erected position diametrically from one of the longitudinal edges of the casing to another. The blank 1 has crease lines 23 .. 27 forming rectangular sections 28 .. 33, the section 28 having a series of seats formed by slits 18, 19 crossing each other to form flaps 20. To form the carton the sections 28, 29 are folded upwardly along the line 24 and the section 28 is then folded downwardly along the line 23 until its free end is near the crease line 25. The eggs are then placed in their seats and the sections 31, 32 are folded to form with the sections 29, 30 a rectangular casing surrounding the eggs. The outer section 33 is folded into the casing and the adjacent edges of sections 29, 32 are secured by a gummed strip 21. Short branch slits 22 may be formed at the ends of the longer slits 18. In a modification the blank is formed so that the rectangular casing is divided by a vertical partition into two compartments each of which has a diagonally-extending section provided with seats for eggs.
Patent GB-1198226-A (GB)
Title: Erythromycin A Derivatives
IPC: C07H17/08
Filed: 1968-05-23
Abstract: 1,198,226. Erythromycin A derivatives. ABBOTT LABORATORIES. 23 May, 1968 [18 July, 1967], No. 24725/68. Heading C2A. The invention comprises derivatives of erythromycin A of Formula I wherein R 1  is amino, azido or dimethylamino; R 2  is hydroxy; or R 1  and R 2  taken together represent an epoxy group; and acid addition salts thereof. Specified salts are the hydrochloride, sulphate, phosphate and acetate. 41-Hydroxyerythromycin A is produced by reacting 3<SP>1</SP>- (dedimethylamino)-#<SP>3#1</SP> <SP>4#1</SP>-erythromycin A with an epoxidizing agent, e.g. m-chloroperbenzoic acid in chloroform, to form 31-(dedimethylamino) - 3<SP>1</SP>,4<SP>1</SP> - epoxyerythromycin A; opening the epoxide ring with an azide such as sodium azide to form 3<SP>1</SP>-(dedimethylamino)-3<SP>1</SP>-azido- 4<SP>1</SP>-hydroxyerythromycin A; reducing the azido compound to amine, e.g. with catalytic hydrogen; and treating the amine with formaldehyde under reducing conditions, e.g. with catalytic hydrogen, to produce 41-hydroxy erythromycin A. Specification 1,125,544 is referred to. Pharmaceutical preparations contain 4-hydroxyerythromycin A or an acid addition salt thereof. The preparations have antibacterial activity.
Patent GB-1424596-A (GB)
Title: Method of and apparatus for forming and distributing a granular and/or powdery mixture to its point of use
IPC: B22C15/20
Filed: 1973-05-24
Abstract: 1424596 Pneumatic conveyers G Y RICHARD 24 May 1973 [29 May 1972] 24788/73 Heading B8A A granular and/or powdery mixture is formed in a mixing chamber and then transported to its point of use via a pneumatic accelerator which prevents reflux of the mixture towards the mixer and provides an annular stream of gas by the expansion of compressed gas to displace the mixture from the pneumatic accelerator towards its point of use. In Fig. 1, foundry sand, bonding agent and hardening agent are mixed in a mixing chamber 1, the mixture then passing through pneumatic accelerator 3 by gravity until the high speed annular stream of gas (caused by expansion of compressed gas into a narrow annular chamber surrounding the path of the mixture) contacts the mixture and carries it along pipeline 4 to mould 5. In alternative embodiments (not shown) the mixture passes through a non-return valve between leaving the mixing chamber and entering the pneumatic accelerator, or the ingredients are conveyed before or after mixing by high speed conveyer belts, the top run of each of which is mounted in a tube. The apparatus may be used to convey quick-setting mixtures from mixing chamber to mould for casting.
Patent GB-1193609-A (GB)
Title: Nuclear Power Stations.
IPC: G21C13/093
Filed: 1969-05-15
Abstract: 1,193,609. Nuclear power plant. SULZER BROS. Ltd. 15 May, 1969 [17 May, 1968], No. 24848/69. Heading G6C. In a nuclear power plant, the gaseous working medium forms the atmosphere of the chamber containing the turbine and compressors. The gas turbine 8À2, compressors 6À2 and 7À2, intercoolers 10À2, recuperators 11 and re-coolers 12 are mounted on floor 26 in the chamber 4 of the reinforced concrete pressure vessel 1. The reactor 3 is enclosed in chamber 2, above 4. Gas enters the compressors at 13À2 from the chamber 4 and flows to the reactor through the recuperators 11 and the duct 17. The gas passes into the turbine 8-2 through the duct 18À2 from the reactor and from the turbine into the chamber 20 from which it is distributed to the recuperators 11, recoolers 12 are returned to the space above 26. In a second embodiment, the heat exchange units are disposed round the reactor in recesses in the pressure vessel wall.
Patent GB-270156-A (GB)
Title: Improvements in ground sheets combined with pillows
IPC: A47C27/08
Filed: 1926-10-07
Abstract: 270,156. Blackburn, J. H. Oct. 7, 1926. Pillows.-One end of a ground sheet is doubled back on itself and secured around its edge 1<a> to the main part of the sheet 1 to form am airtight chamber 2 which may be inflated to serve as a pillow.
Patent GB-827829-A (GB)
Title: Improvements in or relating to electronic storage tubes
IPC: H01J31/18
Filed: 1958-08-01
Abstract: 827,829. Cathode-ray storage tubes. HUGHES AIRCRAFT CO. Aug. 1, 1958 [Aug. 15, 1957], No. 24930/58. Class 39(1). In an electronic storage tube of the kind described in Specification 770,333, the matrix having information-character-forming apertures is disposed within an electrostatic lens system which includes a preconvergence lens limiting off-axis excursions of the electron beam entering the matrix and a lens converging the beam leaving the matrix towards a predetermined area of the target. In the embodiment shown the beam is directed towards the selected aperture in the matrix 10 by the deflection system 8 and is subsequently caused to follow a path substantially parallel to the tube axis by electrodes 40-42. After passing through the matrix the beam is converged towards the tube axis by electrodes 42-44 and thereafter is redirected by deflection system 11 so as to be coincident with the tube axis. Finally the beam is directed by deflection system 12 towards the predetermined area of the storage screen 4.
Patent GB-536872-A (GB)
Title: Lubricant
Filed: 1939-08-31
Abstract: 536,872. Lubricant for machinery. ACHESON INDUSTRIES, Inc. Aug. 31, 1939, No. 24982. Convention date, Sept. 2, 1938. [Class 91] A lubricant for bearings and similar surfaces which are subjected to a high temperature comprises a volatile organic vehicle of low viscosity which will evaporate completely at the working temperature without sizzling and without leaving any residue, having in suspension a small amount of graphite which has been reduced to the colloidal state in the presence of a polymerized isobutylene having a molecular weight of about 7000, and a colloid stabilizing agent. The amount of colloidal graphite present in the organic vehicle ranges from 0.02 per cent. to 2 per cent. Organic vehicles which are mentioned as suitable for the present invention include gasolines, kerosene, diesel engine fuel oil, motor fuel blends, carbon tetrachloride, alcohols, creosote, benzol and petroleum lubricating oils of various grades. In an example powdered graphite is kneaded in a Banbury mixer with an ioil-soluble mineral oil sulphonate known as mahogany soap in the presence of polymerized isobutylene for 12 to 24 hours, and then thinned with the desired vehicle. Instead of mahogany soap, lecithin may be used as the dispersing agent.
Patent GB-597267-A (GB)
Title: Automatic hydraulic device for introducing regulated quantities of liquid into tanks or other vessels
IPC: E03D9/03
Filed: 1944-12-13
Abstract: 597,267.  Disinfecting-apparatus. GILBERT, C. Dec. 13, 1944, No. 24996. Convention date, Aug. 7. [A Specification was laid open to inspection under Sect. 91 of the Acts, July 2, 1945.] [Class 26] [Also in Group II] A self-operating device for introducing a regulated quantity of disinfectant into a flushing cistern comprises a substantially air-tight receptacle for said liquid, a bell open at its lower end immersed in the liquid in the said cistern when the latter is filled, tubing connecting the upper part of the said bell with an upper part of the said receptacle, and an adjustable riser ascending from beneath the level of the disinfectant arranged to discharge into the said tank during the filling of the latter from an outside source. In the form shown, when the cistern 10 is emptied, the lower end of the bell 14 is exposed. On refilling the cistern 10, the air compressed in the bell 14 and the receptacle 20 forces some of the disinfectant in the latter into the riser tube made of sections 24, 24<SP>1</SP> joined by the elbow 26, and it is discharged through the aperture 25, regulation of the quantity discharged being obtained by raising or lowering the section 24<SP>1</SP>. The receptacle 20 is refilled automatically through the socket 31 from the reservoir 29, which may be refilled by swinging the receptacle into the position indicated in Fig. 2. A blow-off airvalve 32, shown in Fig. 3, may be fitted to the receptacle 20, to prevent establishment of excess air-pressure and also regulate the quantity discharged. The bell 14 may be made integral with the cistern 10, and the receptacle 20 may be disposed within the cistern or be made to form part of the said cistern.
Patent GB-1415239-A (GB)
Title: Inflation valves
IPC: F16K15/20
Filed: 1973-05-25
Abstract: 1415239 Valves LEAFIELDS ENG Ltd 17 July 1974 [25 May 1973] 25031/73 Addition to 1325299 Heading F2V The inflation valve of the parent Specification 1,325,299 is modified by having the second seat provided by a cup 8 of rustproof metal or rigid plastics material instead of by a support post. The cup is attached at its periphery to the body of the valve by dowels 9 which extend as shown in Fig. 1, or across a chord of the circular perimeter. The cup is provided with ports 24 and may have a star-shaped spigot to support the closure member. An annular channel is provided in the body to seat the spring 17. (For Figure see next column.)