baber/WOPTO huggingface dataset:
Patent GB-771959-A (GB)
Title: Improvements in or relating to cleaning on polishing devices for floors and like surfaces
IPC: A47L11/08
Filed: 1954-04-06
Abstract: 771,959. Cleaning floors. MACKENZIE, A. K. and CLEMENTS, A. E'. March 25, 1955 [April 6, 1954], No. 10110/54. Class 138(1) A floor or like surface cleaning device comprises a plate member having at least. a pair of cleaning heads mounted thereon and so arranged that movement of the device across the floor causes the heads to revolve, the only permitted movements of the heads relative to the plate member being rotational and about, convergent axes, the heads being provided with yieldable cleaning material which presents. cleaning surfaces and the plate member being so weighted that when the device is in operation the cleaning material is forced into contact with the floor so that approximately two thirds of each cleaning surface is in contact with the floor during the rotation of the heads. As shown in Fig. 1, the plate member 19 is formed of cast metal having integral therewith masses of metal such as 21 to bear down on the cleaning heads 22, 23. The plate member 19 is provided with a socket 20 to receive an inclined handle 18. Each head comprises a metal disc 24 having a bearing 29 rotatable about a bolt 30, the axes of the bolts being inclined at about 10 degrees to the vertical and converging downwardly towards each other. Secured by screws 25 to the disc 24 is an annular wooden stock 26 for brush bristles 27, the stock being surrounded by a rubber buffer ring 28. The stock may however carry a cylindrical block of sponge rubber or like resilent material and the block or the bristles may be enclosed by a removable bonnet. As the device is moved over a floor the heads will be caused to rotate in opposite directions. In a modification the axes of the bolts may diverge downwardly. In the embodiment of Fig. 11, the axes 51, 52, 53 of three cleaning heads 47, 48, 49 all converge . downwardly from a plate member 50 and the head 47 is provided with a block 55 of sponge rubber. Alternatively two of the axes may be parallel. Three other embodiments, each employing four cleaning heads are also described. The first of these three embodiments has two pairs of heads as described with reference to Fig. 1, the second has two pairs of heads, the axes of each pair diverging downwardly, and the third has two pairs of heads one pair as shown in Fig. 1, and the other pair having the axes diverging downwardly.
Patent GB-768898-A (GB)
Title: Improvements in or relating to electric fans or the like
IPC: F04D29/64
Filed: 1955-04-07
Abstract: 768,898. Screw-fans. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. April 7, 1955 [April 12, 1954], No. 10196/55. Class 110(1). A pivotal support for a motor-driven fan comprises a pair of trunnions 30, Fig. 6, at least one of which has a disc-like end 38, Figs. 3, 5 and 6, arranged at right angles to the axis of the trunnions, an adjustable clamping lever 44, preferably of springy metal, carried by one or each of the trunnion supports 22 and means such as a thumbscrew 50, for adjustably biasing one end of the or each lever 44 into engagement with the or each end 38 to clamp it frictionally between its support 22 and the lever 44. The trunnions 30 are secured to a cradle 10 which supports the fan motor 11, Fig. 1. Each trunnion comprises a pair of plates 31 with out-turned semi-circular flanges 35 which carry a circular cap 36 to form the disc-like end 38. Each lever 44 is pivoted about a fulcrum formed by a bolt 43, spacer 47 and nut 46, with a pair of tongues 48 which press against the disc-like end 38 when the screw 50 is tightened. Spacer 47 also serves as a support for the disc-like end 38. The supports 22 are carried by legs 21. The fan is enclosed by a shroud 15 comprising a number of axially spaced rings, the upper and lower halves of the shroud having flanges 40 by which they are bolted to the trunnions 30.
Patent GB-1058532-A (GB)
Title: Improvements in or relating to rolled capacitors
IPC: H01G4/32
Filed: 1965-03-10
Abstract: 1,058,532. Capacitors. SIEMENS & HALSKE A.G. March 10, 1965 [March 11, 1964], No. 10199/65. Heading H1M. A roll capacitor is formed by winding dielectric and foil strips or metallized dielectric strips on a thin metallic mandrel engageable in the collets of a winding machine and grooved or notched at its centre to permit easy fracture; the groove being filled with hard wax. After winding with alternate electrode foils or layers standing proud at each end the mandrel is broken by tension without extraction from the roll and the proud electrodes are soldered or welded to the respective mandrel halves. If stretched synthetic resin, e.g. polystyrene dielectric foil is used the roll may be immersed in a solder bath to simultaneously relieve stress in the foils and solder the electrodes to the mandrel halves.
Patent GB-484353-A (GB)
Title: Improvements in or relating to the bearings of electric motors and like machines
IPC: H02K5/132
Filed: 1937-04-10
Abstract: 484,353. Bearings. SIEMENS-SCHUCKERTWERKE AKT.-GES. April 10, 1937, No. 10300. Convention date, May 7, 1936. [Class 12 (i)] The bottom bearing for a vertical shaft electric motor, or like machine, operating under water, comprises a stationary trunnion 15 extending upwardly from a housing 10 into a bell-shaped extension 16 disposed at the lower end of the rotor shaft 1, a sealing gland 13 being provided between the trunnion 15 and the lower part of the bell-shaped part 16. As shown, a roller bearing 12 is fitted between the parts 15, 16 and the gland 13 is pressed by a spring 14. In a modification the bell-shaped part has a downwardly extending skirt which enters an annular recess in the trunnion supporting member.
Patent GB-851268-A (GB)
Title: Improvements in or relating to hot-gas reciprocating engines of the displacer type
IPC: F16F15/24
Filed: 1959-03-25
Abstract: 851,268. Refrigerating. PHILIPS' GLOEILAMPENFABRIEKEN N.V. March 25. 1959 [March 28, 1958], No. 10357/59. Class 29 [Also in Groups XXVI and XXVII] In a refrigerator or heat pump comprising a displacer 2 and a piston 3 each connected by connecting rods 22, 29 to two oppositely rotating crankshafts 32 located on each side of a plane passing through the longitudinal axis of the engine and each provided with a counterweight 55, the piston-connecting rods 22 being pivotally connected at 20 to the piston rod 19 and rotatably mounted at their big ends 24 on the crankpins 25 and the displacerconnecting rods 29 being pivotally connected at 31 to the displacer rod 23 and at 27 to the piston rod big ends 24, the distances between the two pivots 20 and 27 and 31 and 27 on each of the piston-connecting rods and the displacer-connecting rods are all equal and the machine is balanced by relating the masses and dispositions of the moving parts and the counterweights in accordance with a formula given in the Specification. The crankshafts have intermeshing gearwheels 33 and the displacer rod 23 passes through the piston rod and a hollow shaft of the pivot 20.
Patent GB-884460-A (GB)
Title: Improvements in or relating to refining of crude sugar juices
IPC: C13B20/02
Filed: 1958-04-01
Abstract: In refining crude sugar juice, it is subjected to several stages of preliminary liming with sufficient quantities of unfiltered opaque juice from a first stage of carbonation and/or slime from settling tanks, containing no or only traces of suspended calcium hydroxide, to achieve optimum precipitation conditions at a pH value of 10.9 in the last stage of preliminary liming.  Milk of lime and carbon dioxide may then be fed simultaneously, into the juice at a pH of 10.9 or between 8.0 and 10.5.  Alternatively, the juice from the last stage of preliminary liming may be treated with a liming agent containing free calcium hydroxide and then subjected to one or two stages of carbonation.  The unfiltered opaque juice and/or slime may have a pH value of 10.9 or lower.  The crude sugar juice may flow continuously through apparatus comprising five compartments into each of which unfiltered opaque juice and/or slime is fed continuously.
Patent GB-927669-A (GB)
Title: Improvements in or relating to coolant circulating systems for nuclear reactors
IPC: G21C15/253
Filed: 1962-03-19
Abstract: 927,669. Cooling nuclear reactors. ESCHER WYSS A.G. March 19, 1962 [March 17, 1961], No. 10455/62. Class 39 (4). [Also in Group XXVI] A coolant circulating system for a gas-cooled nuclear reactor comprises a number of rotors having turbine blading 5 and compressor blading 6, the compressor blading compressing the gas directed to the reactor and the turbine blading expanding the heated gas from the reactor, and two like rotors 4 coaxially connected together so that each is acted upon by part of the cooling gas in parallel directions, such that the directions of the compressed currents and the expanded currents are opposite to one another. The high-pressure sides of the two rotors face towards one another, and the axial thrusts are directed away from the centre. In the embodiment only axial flow through the rotors is shown, but the invention is also applicable to cases where the cooling gas flows through the rotors in directions other than an axial direction.
Patent GB-1095191-A (GB)
Title: High temperature protective coating
Inventor: MCGLOTHLIN QUENTIN TERRY
IPC: C04B28/26
Filed: 1965-03-12
Abstract: A coating composition is made up of aqueous lithium-sodium silicate solution; a silica sand; and a metallic or semi-metallic pigment.  In the silicate solution, the mole ratio Li2O:Na2O is from 20:1 to 2:1, and the mole ratio SiO2:(Li2O + Na2O) is from 20:1 to 9.1:1. The silicate solution is prepared by adding lithium hydroxide, sodium hydroxide and silica-containing materials, e.g. silicic acid or silica gel, to water, agitating, and heating.  By semi-metallic pigment is meant particles having by weight about 50% metal around a core of talc or mica.  The pigment metals may be Al, Ni, or stainless steel or other iron alloys having m.p. above 1200 DEG  F. Other optional additives are:  zinc dust; metal oxide pigments, e.g. oxides of Zn, Ti, Cd, Cd/Al, Co/Al, or Co/Cr; and aluminium silico-phosphate pigment.  The coating compositions are applied to metal surfaces which have been sand-blasted.  A wet film of the composition is applied by brushing, spraying or rolling.  When dry, the thickness is 2-12 mils.  The coated metal surface may be heated to up to 350 DEG F. to improve corrosion resistance.  The metal surface may be carbon steel, stainless steel or "Inconel" (Registered Trade Mark).ALSO:A coating composition is made up of aqueous lithium-sodium silicate solution; a silica sand; and a metallic or semi-metallic pigment.  In the silicate solution, the mole ratio Li2O:Na2O is from 20:1 to 2:1 and the mole ratio SiO2: (Li2O+Na2O) is from 2.01:1 to 9.1:1.  The silicate solution is prepared by adding lithium hydroxide, sodium hydroxide and silica-containing materials, e.g. silicic acid or silica gel, to water, agitating, and heating.  By semimetallic pigment is meant particles having by weight about 50% metal around a core of talc or mica.  The pigment metals may be Al, Ni, or stainless steel or other iron alloys having m.p. above 1200 DEG F. Other optional additives are: zinc dust; metal oxide pigments, e.g. oxides of Zn, Ti, Cd, Cd/Al, Co/Al, or Co/Cr; and aluminium silico-phosphate pigment.  The coating compositions are applied to metal surfaces which have been sand-blasted.  A wet film of the composition is applied by brushing, spraying or rolling.  When dry the thickness is 2-12 mils.  The coated metal surface may be heated to up to 350 DEG F to improve corrosion resistance.  The metal surface may be carbon steel, stainless steel or Inconel (registered Trade Mark).
Patent GB-1134901-A (GB)
Title: Process for the reductive melting and refining of partly reduced iron
IPC: C21B13/08
Filed: 1966-03-10
Abstract: 1,134,901 Refining iron. SOC. METALLURGIQUE D'IMPHY. March 10, 1966 [March 11, 1965], No. 10548/66. Heading C7D. Partly reduced iron, such as iron powder or sponge produced by solid reduction and mixed with carbon and slag-control agents, is reduced and refined in a furnace rotating or oscillating about a horizontal axis and having a burner at one end and a waste gas outlet at the other end, the reduction being carried out at 1100 to 1350‹C. by means of a reducing atmosphere above the charge. Besides the oxygen injected with solid, liquid or gaseous fuel, e.g. methane or fluidized pulverulent fuel, by way of the burner, oxygen may be blown into the furnace from devices in the walls to maintain an oxidizing atmosphere wherein CO 2 ; CO + CO 2  volume ratio is at least 0À7. The refined product may be further subjected to a H 2  treatment to eliminate C and O from the iron, followed by vacuum treatment and/or bubbling through argon to eliminate H. The carbon content of the refined iron may be adjusted in a ladle by adding graphite; Si and Mn may also be added.
Patent GB-196610-A (GB)
Title: Improvements in thermionic oscillation generators
IPC: H03B5/10
Filed: 1923-04-18
Abstract: 196,610. Western Electric Co., Ltd., (Assignees of Horton, J. W.). April 18, 1922, [Convention date]. Thermionic oscillation generators. - Stable oscillations free from harmonics are generated by a back-coupled discharge tube, 1 which feeds and controls an amplifier 2 connected in paralllel across the high-tension supply 8. The output circuit of the tube 1 is divided into two branches. One contains a choke 9 which is connected to the high-tension battery. The other contains a blocking condenser 10, a variable high-resistance element 11 serving to limit the amplitude of the current fed back so as to prevent over-loading and distortion by confining the operation of the tube 1 to the straight-line portion of its characteristic curve, and finally an oscillatory circuit 13, 14 which determines the frequency of the generated currents. The grids of the tubes 1, 2 are joined in parallel across the secondary coil 5, which is closely coupled to the coil 13. The output from the amplifier 2 is supplied through a resistance 17 and an adjustable tapping 18 in parallel from the high-tension 8 through a choke 21. The output from this combination is fed through a transformer 22 to a load circuit. The filament of the tubes 1, 2 (a) are inserted in series with the heating battery 3, and (b) are shunted by a resistance 4 equal to the combined resistances of both filaments, so that (a) the normal grid voltage applied to the tube 2 is determined by the voltage drop across the filament of the tube 1, and (b) the total voltage drop across both filaments 1 and 2 is reduced so that the battery 3 is also able to feed the parallel filaments of the tubes 19, 20.
Patent GB-105819-A (GB)
IPC: B23Q16/02
Abstract: 105,819. Herbert, A., and Harrison, H. T. May 30, 1916. Turning.-A turret slide is fed by a fast-running cam A of small diameter having an endless groove A<2> making several turns round the cam. Ths part A<3> is shaped to give a considerable dwell at the rear end of the stroke The turret is indexed by a pawl E carried by a supplementary slide fed by a grocve A<5>. Although this slide makes a reciprocation at each rotation of the drum, rotation of the turret before the turret slide has completely returned is prevented by a cam H which renders the pawl temporarily inoperative. Milling.-The mechanism may be employed on a milling-machine having a reciprocating table carrying an indexing fixture for work of polygonal form.
Patent GB-695458-A (GB)
Title: An improved wick for automatic lighters
IPC: F23Q2/44
Filed: 1950-04-29
Abstract: 695,458. Wicks for use in igniters. SIMMONS, G. B. April 30,1951 [April 29, 1950], No. 10610/50. Class 75(i) A wick for use in a lighter has sufficient stiffness to enable it to be passed down a wick tube and to penetrate absorbent packing in a lighter casing, and comprises a thin, metallic wire core, e.g. of copper, steel, or iron, having applied thereto a coating consisting of a fibrous material, e.g. wool or cotton, impregnated with a material which compacts the fibres while allowing sufficient porosity for the flow of liquid along the wick, e.g. grain-flour paste, such as rye-flour paste, to which size may be added, the coating being subsequently dried. The fibrous coating is preferably such that the fibres extend outwardly of the core.
Patent GB-281532-A (GB)
Title: Improvements in water-cooled cylinders and cylinder heads for internal combustion engines
IPC: F02F1/36
Filed: 1927-04-20
Abstract: 281,532. Fejes, J. Feb. 10, 1927, [Convention date]. Engine cylinders.-In engines, constructed of sheet metal parts, welded together, and having cylinders with detachable heads, grooves 7<1>, 8<1>, 14 are formed in a pressed steel head 3, and sleeves 5, 12 for the sparking plug and holding down bolts respectively, the thickness of the flanges 7, 8, 15 being the same as that of a sheet iron water jacket 6, to which they are welded at the edges. Cylinder barrels are screwed into the frame 2 and similar flanges 18, 19 are welded together. In the case of cylinders having overhead valves, valve guides are screwed into the head, flanges of equal thickness are formed on the water jacket, head and valve guide and welded together. Individual heads may be screwed into a common frame and welded to it as described above. The joints may be readily broken by filing.
Patent GB-832316-A (GB)
Title: Improved electric circuit breaker of the magnetic blow-out type
IPC: H02B11/167
Filed: 1958-04-02
Abstract: 832,316. Arc-rupturing in switches. ALLISCHALMERS MANUFACTURING CO. April 2, 1958 [April 9, 1957], No. 10688/58. Class 38 (5). A circuit-breaker similar to that described in Specification 754,726 has blowout coils 28, 29 embraced by arc - runners 30, 31 which extend from the coils away from the exhaust end of the chute to terminate at 70 in chimney vents 65, 66. The chute 26 has insulating plates 62 at right-angles to the direction of contact separation and insulating plates 63, 64 parallel thereto. The plates 62 may be slotted or apertured in a known manner and the plates 63, 64 may have apertures 80 to equalize the pressure in the channels between them. The inner chimney walls 73 are apertured at 74 for the same purpose. In operation the arc transfers from contacts 22, 25 to the runners at 77, bring- ing the coils 28, 29 into the circuit so that the arc terminals move along the runners into the ends of the chimneys 65, 66. The arc may then restrike at 78 and again move to the ends 70 of the runners, the process being repeated until the arc is extinguished.
Patent GB-250160-A (GB)
Title: Submarine sound reception
IPC: G01S1/72
Filed: 1925-04-24
Abstract: 250,160. Submarine Signal Corporation, (Assignees of Williams, R. L.). April 2, 1925, [Convention date]. Subaqueous audible signals. - A submarine sound-detecting apparatus or hydrophone comprises a rubber shell, a removable seat in which the rubber shell fits, a large inertia rim supporting the seat, a sound-responsive current-varying device supported in the shell, means for filtering out electrically vibrations of all frequencies except those desired, and means for amplifying the filtered signals. The sound receiver is aperiodic and is mounted removably in a valve closing an aperture in the skin of a ship and adapted to allow of the withdrawal of the receiver while preventing inflow of water. A microphone 43 is mounted in the rubber shell 30 on the end of a stem 20, through which and through a filter circuit 50 and an amplifying circuit 51 the rubber signals are transmitted to telephones 52. The shell can be withdrawn through a valve aperture 3, which can then be closed by a valve plunger 4 and handle 6, so as to enable the microphone to be removed without dry-docking the ship. The valve flange 7 is bolted to a composition seat 10, which is on a heavy inertia plate 11 riveted to a plate 12 in the bottom of the ship, so that the coupling between the ship and the current-carrying device is a loose one. Gaskets 15, 14, 13 are fitted between the parts 7, 10, 11, 12, and a similar gasket 18 is fitted between the valve flange 8 and a cap 16. The opening in the cap 16 is closed by a stuffing-box, through which passes the stem 20. A cross-piece 25, engaged by screws 27, presses on a shoulder 26 on a cap 22 on the stem 20, and keeps the shell 30 on its heat in the part 10. The microphone 43 is carried by a rod 42 screwed into a stud 40 moulded in the light rubber diaphragm forming the end of the shell 30. By bending the rod 42 the plane of the electrodes may always be brought into a vertical position. Wires from the microphone pass to a cable 23 passing through the stem 20 to the battery 53, filter circuit 50, and amplifying circuit 51. Specification 223,949 is referred to.
Patent GB-1064275-A (GB)
Title: A process and apparatus for the production of nitric acid
IPC: C01B21/26
Filed: 1964-03-13
Abstract: A process for the production of 50-70% by weight HNO3 by absorption of nitrogen oxide from nitrous gases (containing oxygen and more than 90% by weight of nitrogen oxides in the form of NO2) in water comprises passing the nitrous gases upwards through at least three layers of HNO3 spaced vertically one above the other, the lower layer being continually replenished by HNO3 from the upper layer flowing directly thereto in countercurrent to the upward flow of gases and the middle layer being replenished by precipitation of mist and by condensation of vapours of HNO3 and water from the space between the middle and the upper layer, but not by acid from the upper layer, the concentration of acid in the middle layer being such that chemical equilibrium between it and the nitrous gases passing thereto is maintained.  The middle layer may be cooled to a temperature 3-10 DEG C. lower than the temperature of the nitrous gases leaving the layer located immediately beneath it and the middle layer may be contacted with additional air or oxygen supplied from outside. Two sets of layers may be provided, each of at least 3 layers, nitrous vapours through the upper layer of the first set being fed through the lower layer of the second set and acid from the lower layer of the second set being caused to replenish the upper layer of the first set.  Any layer except the middle layer of the first set may be arranged to supply acid to replenish the middle layer of the second set, preferably by the flow of acid under gravity. The second set of layers may have a layer similar to the middle layer which is located under the layer supplied with water or acid to initiate a flow of acid and which may be cooled by a stream of coolant passing therethrough.  The invention also relates to an apparatus for carrying out the above process.
Patent GB-830834-A (GB)
Title: Polymerisation catalysts and process for the production of polymers
IPC: C08F4/68
Filed: 1957-04-03
Abstract: A catalyst for the polymerization of olefinically unsaturated compounds is prepared by reacting aluminium or zinc, a halide of titanium or vanadium and an alcohol or a phenol.  The reaction is performed in an inert liquid diluent, such as a liquid hydrocarbon. The catalyst may include a porous carrier, such as kieselguhr.  In examples, catalysts are prepared by reacting aluminium, titanium tetrachloride and ethyl alcohol, isopropyl alcohol, butanol and hexyl alcohol, by reacting aluminium, vanadium tetrachloride and ethyl alcohol, and by reacting zinc, titanium tetrachloride and ethyl alcohol, and are used to polymerize ethylene and propylene.ALSO:Olefinically-unsaturated compounds are polymerized in the presence of a catalyst prepared by reacting aluminium or zinc, a titanium halide or a vanadium halide, and an alcohol or phenol. The reaction is performed in an inert liquid diluent.  The catalyst may include a porous carrier, such as kieselguhr.  In examples, ethylene and propylene are polymerized in the presence of catalysts prepared by reacting aluminium, titanium tetrachloride and ethyl alcohol, isopropyl alcohol, butanol and hexyl alcohol, by reacting aluminium, vanadium tetrachloride and ethyl alcohol, and by reacting zinc, titanium tetrachloride and ethyl alcohol.