baber/WOPTO huggingface dataset:
Patent GB-130632-A (GB)
Title: Improvements in Systems for Condensing Steam and Supplying Feed-water for steamships.
IPC: F01B25/00
Filed: 1918-02-26
Abstract: 130,632. Weir, G. & J., and Lang, C. R. Feb. 26, 1918. Feed-water. supplying.-In a feed-water system for steamships, comprising a main condenser a, from which air is withdrawn bv an ejector b discharging to the atmosphere, together with a steam-driven direct - acting hot-well pump m and a steamdriven boiler-feed pump x, the supplies of actuating steam to the hot-well pump and the feed-pump respectively are controlled in accordance with the water levels in the condenser and in a supply tank z under atmospheric pressure. To control the hot-well pump m, the steam supply to its engine w is regulated by a valve v controlled by a float-box g connected to the condenser by pipes h, k. The steam supply valve 5 of the boiler feed-hump x is controlled by a float in the tank z. The tank z receives water from the hot-well pump m and from an auxiliary condenser 2, used for condensing steam from the ejector b, by pipes 13, 21 respectively. In a modification, a surface feed-heater condenser is substituted for the auxiliary condenser d. The condensate is discharged by the pump m through one section of the feed-heater condenser; the other section is cooled by sea water.
Patent GB-785107-A (GB)
Title: Rubber insert with lubricant channel
IPC: A61B17/20
Filed: 1956-02-06
Abstract: 785,107. Assembling rubber-bush mountings. GENERAL TIRE & RUBBER CO. Feb. 6. 1956 [March 30, 1955], No. 3639/56. Class 108(3) In a resilient mounting of the type comprising a tubular elastic member A caused by radial compression to adhere to co-axial inner and outer rigid tubular members C, B, respectively, the bore of the member A is formed with an internal annular lubricant-retaining groove 46, a flexible lip 47 forming one side of the groove 46 and a shoulder 47a spaced from the lip 47 and forming the other side of the groove 46 the bore of the member A being enlarged outwardly from the lip 47 to its outer end. The Specification includes a description of a machine for assembling the member A between the rigid members, which is identical with the machine described in Specification 758,295, except that in the machine of the present Specification there is no provision for supplying lubricant to the core-inserting pilot. In the present invention, the pilot 21 is solid, and is integral with the rod for supporting the inner tubular member C. The necessary lubricant for the operation of inserting the member C into the member A, is provided by a supply 22 of solid or plastic lubricant disposed in the groove 46. All three parts A, B, C, of the mounting, are sprayed with lubricant prior to insertion in the machine. The lubricant 22 may be mutton tallow. After assembly of the mounting, the member A may be axially elongated to an amount which is between 50 and 150 per cent of its original length. Specification 660,625 also is referred to.
Patent GB-850511-A (GB)
Title: Method of rolling and apparatus for controlling the rolling of sheets to a tapered thickness
Inventor: HOLLIS WILLIAM STEPHEN
IPC: B21H7/00
Filed: 1957-01-30
Abstract: 850,511. Control of two D.C. motors. LOEWY ENGINEERING CO. Ltd. Jan. 30, 1957, No. 3651/55. Class 38 (3). [Also in Groups XX, XXXV and XL (b)] The speed of a motor operating the screwdown mechanism of a rolling mill is maintained in a predetermined relationship with that of the sheet being rolled, to produce a taper, by applying to the speed-control circuits (not shown) a signal dependent jointly on the displacements of the screw down mechanism and the sheet. The displacements may be measured by means of impulses generated with the aid of a photo cell and diffraction grating or a graduated tape or wire but in the arrangement shown are represented by the voltages from two potential dividers. Preferably the signal is modified by one representing strain in the rolls and their supports and the speed of the sheet is kept constant by a retroactive control of the motor driving the rolls. Controlling screw-down motor. The sheet is clamped at its edges at an appropriate stage of its emergence from the mill rolls to a carrier member, Figs. la, 1b (not shown) secured to one end of a chain passing over a sprocket driving shaft 25, Fig. 2, via a worm gear 24. The shaft can move axially through the gear wheel and carries a thread co-operating with a fixed nut 26 so as to move the slider 29 of a potential divider as the gear rotates. Another potential divider slider 129 is driven with the screw-down arrangements. The voltages from these potential dividers are opposed and combined with the output of a strain gauge bridge associated with the mill rolls and supports and applied over circuits 35 to a circuit (not shown) controlling the speed of the screw-down motor in such a direction as to eliminate the signal. Maintaining sheet speed constant. A tachometer generator 43, Fig. 3, is driven alternatively by a shaft geared to the mill rolls and by the sprocket driven by the sheet, the faster drive taking control by means not described. The output of the generator is combined with a manually adjustable voltage from a potential divider and with the aid of an amplifier and amplidyne controls the field energization of generator 49 feeding the roll driving motor 50.
Patent GB-581741-A (GB)
Title: Improvements relating to electro-propulsion machinery for ships
IPC: H02P9/00
Filed: 1943-03-06
Abstract: 581,741. Speed governors. BELLISS & MORCOM, Ltd., and JUDE, A. A. March 6, 1943, No. 3680. [Class 57] [Also in Group XXXV] Ship propulsion machinery comprises an A.C. or D.C. generator b driven by a prime mover a, an electric motor c driving propelling means and an exciter d for these machines driven by a hydraulic motor m from a pump j driven by the prime mover. Preferably a governor o responsive to the speed of the exciter regulates the fluid supply to the hydraulic motor m. The governor t of the prime mover has a short speed range and is driven by a second hydraulic motor n also supplied from the pump j. Relays or servomotors r, v, control the valves supplying motor fluid to the prime mover and exciter motors respectively. According to the Provisional Specification means responsive to the normal electrical controls between generator and motor may control the motor driving the prime mover governor.
Patent GB-434590-A (GB)
Title: Improvements in or relating to the wet purification of gases
IPC: B01D47/06
Filed: 1934-02-05
Abstract: 434,590. Washing gases. LEARMONTH, W., NONHEBEL, G., and PEARSON, J. L., Norton Hall, The Green, Norton-on-Tees, and IMPERIAL CHEMICAL INDUSTRIES, Ltd., Millbank, London. Feb. 5, 1934, Nos. 3797, and 36730 (divided out of 424,414). [Class 55 (ii)] A gas - scrubber comprising a main body of packing B consisting of superposed transverse tiers of thin laths with vertical flow of gas and liquor has relatively deep plates C arranged vertically side by side at the gas inlet in the path of the scrubbing liquid, the plates being spaced at a greater distance apart than the thin laths and having enlarged tops so that the plates C receive a greater proportion of scrubbing liquor per unit area than the laths B. The plates C have tops D of pear section and may be staggered to leave no vertical space between them, or the tops may be vertically slit and bent over so as to form alternately inclined rows of wings as in Specification 426,560, or the tops may have parallel inclinations like a venetian blind. When the gas inlet is at the bottom, the bottom edges of the deep elements are stepped downwardly away from the horizontal inlet; when the gas enters at the top, the top edges are stepped upwardly away from the gas inlet to assist uniform distribution of the gas. The liquor may contain lime or chalk. Specification 424,414 is referred to. According to the second Provisional Specification, the liquor is fed from a perforated plate on to a gridwork of bars of square crosssection.
Patent GB-894733-A (GB)
Title: Improvements in or relating to electric discharge devices
IPC: H01J1/20
Filed: 1960-02-03
Abstract: 894,733. Thermionic valves. M-O VALVE CO. Ltd., and ISELY, C. E. Feb. 3, 1961 [Feb. 3, 1960], No. 3839/60. Class 39(1) An indirectly-heated cathode sleeve 1 is supported by two insulating sheets 7 and is coated with electron - emissive material only over a section disposed between sheets 7. At least the major part of the heating element 5 is disposed within this section and at least one aperture 3 is formed in the wall of sleeve 1 between each sheet 7 and the coated section, to reduce the amount of heat conducted from this section to the sheets 7. As shown, the sleeve 1 is of rectangular cross-section and has an emissive coating on a central section of one or both of its major surfaces, slots 3 being provided in both major surfaces. The mica sheets 7 abut against projections 9 formed in the minor surfaces of sleeve 1. The cathode may be adjacent or surrounded by a control grid and an anode each formed with integral tags which project through appropriate holes in the sheets 7. Suitable dimensions for the cathode are given.
Patent GB-621009-A (GB)
Title: Improvements in the manufacture of organo-silicon compounds
IPC: C07F7/08
Filed: 1947-02-10
Abstract: Organo-silicon compounds are prepared by reacting a siloxane which contains a chlormethyl radical linked to at least one of the silicons by carbon to silicon bond with magnesium in anhydrous ether, and then reacting the product with trimethyl silicon chloride to yield the desired compound analogous to said siloxane in which trimethyl silyl radicals are substituted for the chlorine in the chlormethyl radicals.  The siloxane may be a hexa-organo disiloxane in which at least one of the organic radicals is a mono-chlormethyl radical.  In an example, monochlormethyl - pentamethyldisiloxane is reacted with magnesium in anhydrous ether and the reaction product is then reacted with trimethylsilicon chloride to yield trimethylsilylmethylpentamethyldisiloxane.
Patent GB-657683-A (GB)
Title: Improvements in or relating to devices for slicing fruits, vegetables or the like
IPC: B26D3/28
Filed: 1948-02-11
Abstract: 657,683. Slicing vegetables &c. GARDNER, N. Feb. 11, 1948, No. 3961. [Class 5(i)] In a fruit and vegetable slicer, blades 15a, 15b are cut obliquely of and pressed up from a base-plate 10, leaving slots through which the sliced material passes. The blades are chamfered substantially parallel to the plane of the plate 10 forming oppositely-facing knife-edges.
Patent GB-247575-A (GB)
Title: Improvements relating to two-stroke cycle explosion motors
IPC: F02B25/00
Filed: 1926-02-11
Abstract: 247,575. Delorm, F. Feb. 14 1925, [Convention date]. Two-stroke-cycle engines; driving-gear; cylinders, ports of and arrangement of igniters in.- In engines having oppositely moving power pistons 3, 4 working with a common explosion chamber 5, the power cylinders 1, 2 are arranged out of line and a pump cylinder 11 is placed on the same axis as the power cylinder 1; the pump piston 12 is rigidly connected to the power piston 3 by rods 14, which pass through side channels connecting the pump chamber to an annular chamber 8 surrounding the power cylinder 1. The upper side of the power piston acts as a pump piston in addition to the main pump piston 12, these two drawing a charge through a port 20 into the pump chamber the side channels and the chamber 8 on the down stroke of these pistons. Only two crank throws are required, the two cranks being at an angle slightly less than 180‹, so that two exhaust ports 22 controlled by the piston 4 open and close before the inlet ports 9 controlled by the piston 3. The charge supplied to the power cylinders may be less, equal, or greater in volume than the piston displacement. The sparking plug is mounted at the side of the explosion chamber, in the bore 6.
Patent GB-667905-A (GB)
Title: Improvements relating to coated welding rods
IPC: B23K35/365
Filed: 1950-02-16
Abstract: 667,905. Uniting by fusion. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Feb. 16, 1950 [Feb. 19, 1949], No. 3989/50. Class 83 (iv). A coated welding-rod for electric arc welding comprises an iron core and a coating containing powdery iron so that the total amount of iron constitutes from 75 to 86 per cent of the total weight of the coated welding-rod and from 15 to 50 per cent by weight of this iron is contained as powdery iron in the coating, the'rest of the coating substantially being of the following composition by weight: titanium dioxide 10-50 per cent; carbohydrate 10-30 per cent; silicate 20-40 per cent; manganese alloy (e.g. ferromanganese) up to 10 per cent; manganese compound capable of evolving oxygen at welding temperatures 3-30 per cent. The manganese compound may be hausmannite, potassium permanganate and brownstone used singly or in combination. The manganese alloy may be omitted provided the coating contains 18-30 per cent by weight of carbohydrate and also manganese compound from 12-30 per cent. by weight of carbohydrate and also manganese compound from 12-30 per cent by weight of the non-ferrous constituents. The thickness of the coating is such that the diameter of the welding- rod is at least 1.3d+1.0 mm., where d is the diameter of the core.
Patent GB-879290-A (GB)
Title: Steam generator
IPC: F22G5/00
Filed: 1960-02-04
Abstract: 879,290. Forced-flow steam boilers; superheaters. COMBUSTION ENGINEERING Inc. Feb. 4, 1960 [March 18, 1959], No. 3991/60. Classes 123(2) and 123(3) A high capacity steam generator comprises respectively reheat and superheat furnaces 10, 12 each having their front walls 14, 16 and the forward parts 40 of their side walls 32, 34 and 36, 38 lined with steam generating tubes and a pair of inwardly projecting water tube panels 52 which, with the wall tubes, are connected for forced circulation with a common steam and water drum 18. Each furnace, separately fired by three horizontally spaced vertical rows of burners 58 arranged between the panels and the corresponding furnace side walls, has an outlet 60 leading to horizontal and down passes 66, 68 accommodating economizers 70 and convection superheater sections 72, 80 all of the steam output from which is passed to the upper pair of inlet headers 86 for radiant superheater tubes 88 which cover the remaining width 90 of the side walls 36, 38 of the superheater furnace 12. Steam flows downward through every other tube 88 and upward through alternate tubes which have their upper ends connected to the adjacent leg of a U-shaped header 192 the centre portion of which communicates with the upper ends of radiantly heated superheater tubes 94 lining the rear wall of the furnace 12. Steam for reheating passes from inlet headers 100 and up through tubes 98 lining the side walls 32, 34 of the furnace 10 to a U-shaped header 106 connected also to radiant superheater tubes 108. Steam flows downwardly through the latter, which line the furnace wall 62, to an outlet header 110.
Patent GB-1148841-A (GB)
Title: Drink mixer attachment
IPC: A47J43/044
Filed: 1967-01-26
Abstract: 1,148,841. Domestic mixers. SUNBEAM CORP. 26 Jan., 1967 [8 June, 1966], No. 4041/67. Heading B1C. A domestic mixer has a mixing jar with two asymmetrically placed bosses 22, 23 engageable with bearings 18, 19 forming alternative positions for a detachable turntable so that the jar is located in a single correct position in relation to a detachable beverage mixing tool (17, Fig. 1, not shown). The mixing tool is engaged in one of a pair of tool holders. The jar has a pouring lip, 25, indentations 26, 27 forming baffles (the indentations 27 serving also as a finger hold), and a detachable cover 28 having a slot 29 for the mixer tool shaft.
Patent GB-593488-A (GB)
Title: Improvements relating to the production of aryl derivatives of trichlorethanes and to insecticidal compositions containing them
IPC: C07C17/26
Filed: 1945-02-17
Abstract: Polishes may contain an insecticidal compound made by heating o- or p-dichlorbenzene and chloral or chloral hydrate, optionally in the pressure of calcium chloride, to a temperature not above 100 DEG  and preferably at about 65 DEG C. (see Group IV).ALSO:An insecticidal compound having insect-repelling properties is obtained by gradually heating ortho- or para-dichlorbenzene to a temperature not in excess of 100 DEG  C. and preferably of the order of 65 DEG  C., optionally in the presence of calcium chloride, mixing therewith chloral or chloral hydrate, either before the heating or after separately heating it to about the same temperature and cooling the mixture.  In examples: (1) p-dichlorbenzene is heated slowly to about 65 DEG  C., mixed with chloral hydrate at the same temperature (alternatively, the two are heated together) and the product is allowed to cool slowly before being dissolved in benzene and recrystallised; (2) p - dichlorbenzene is heated as in (1) and mixed with chloral at the same temperature to obtain a product which is poured into excess cold water where it appears as needle-shaped crystals which may be recrystallised from benzene; (3) as in (1) except that an excess of calcium chloride is added to the p-dichlorbenzene before it is melted, the reaction product in benzene solution is separated by decantation and the product is recrystallised.ALSO:An insecticidal compound having insect-repelling properties is obtained by gradually heating ortho- or para-dichlorbenzine to a temperature not in excess of 100 DEG C. and preferably of the order of 65 DEG C., optionally in the presence of calcium chloride, mixing therewith chloral or chloral hydrate, either before the heating or after separately heating it to about the same temperature, and cooling the mixture.  In Examples: (1) p di-chlorbenzene is heated slowly to about 65 DEG C., mixed with chloral hydrate at the same temperature (alternatively, the two are heated together) and the product is allowed to cool slowly before being dissolved in benzene and recrystallised; (2) p di-chlorbenzene is heated as in (1) and mixed with chloral at the same temperature to obtain a product which is poured into excess cold water where it appears as needle-shaped crystals which may be crystalised from benzene; (3) as in (1) except that an excess of calcium chloride is added to the p-di-chlorobenzene before it is melted, the reaction product in benzene solution is separated by decantation, and the product is recrystallised.  The product may be made a basis of insecticidal dusts, by mixing it with an inert powder, e.g., china clay, with or without the use of a solvent which is subsequently evaporated; sprays, by dissolving it in benzene and diluting the solution with kerosene; emulsions; distempers; polishes; plasters or ointments.  It may be used in conjunction with emulsifying dispersing or wetting agents; and with other insecticides and bactericides.
Patent GB-925285-A (GB)
Title: Improvements in or relating to rotor blades
IPC: B64C27/46
Filed: 1962-02-02
Abstract: 925,285. Helicopter rotor blades. DORNIERWERKE G.m.b.H. Feb. 2, 1962 [Feb. 3, 1961], No. 4074/62. Class 4. A helicopter rotor blade comprises a duct 5 through which gas is supplied to a tip jet nozzle, the duct walls being lined with a layer 6 of thermal insulation the thickness of which varies around the cross-section of the duct and/or along the length of the blade. The blade shown in section has a trailing edge structure 2 glued to a leading edge spar 1 at a junction 3. Where hot gas or air is passed through the duct, energy loss by thermal dissipation through the upper and lower faces of the spar is diminished by the insulation inside these faces, which thickens towards the blade tip, since the cooling effect of the blade passing through the ambient air increases towards the tip. The insulation also protects the joint 3 from excessive heat, thermal conduction away from the joint being poor. Since heat dissipation improves towards the blade tip, the insulation near the joint 3 may decrease in thickness towards the tip. The heat dissipation is sufficient to detach ice layers from the spar, without melting the whole of the layers, thus preventing re-freezing of water on the trailing section. This may involve no insulation near the spar leading edge, as shown. Preferably the free cross-section of the duct is constant along the length of the blade. The insulation is preferably smooth surfaced, and may be a plastic material containing fluorine.
Patent GB-582192-A (GB)
Title: Improvements in agricultural harrows and cultivators
IPC: A01B35/08
Filed: 1945-04-06
Abstract: 582,192. Agricultural implements. BATKIN, H. W. April 6, 1945, No. 4095/44. [Class 6 (i)] A harrow or cultivator consists of a set of transverse blades M the plane of each being parallel to the ground, or but slightly inclined thereto. The upwardly extending supports J carry transverse plates K to which the blades are removably attached and are secured to a frame in the usual way. Caster wheels G<SP>1</SP> are mounted on uprights F<SP>1</SP> depending from the front of the frame.
Patent GB-105228-A (GB)
Title: Improvements in or relating to the Manufacture of Lids of Tins, Canisters and like Receptacles.
IPC: B21D51/52
Filed: 1916-03-29
Abstract: 105,228. Wireless Hinge Manufacturing Co. March 29, 1916, [Convention date]. Hinges; hollow-ware.-Lids for metal boxes, as described in Specification 100,589, are stamped out and shaped between dies. The lower cutter 17 has notching cutters 12 and co-acts with a corresponding die 16 which is hollow to co-act with the die 15 to shape the lid. The ring 14 moves down during the shaping operation, and the block 18 ejects the lid from the die 16 as this moves up again.
Patent GB-187537-A (GB)
Title: Improvements relating to the production of printers' ink
IPC: C09D11/08
Filed: 1922-02-13
Abstract: 187,537. Smidt, K. J., and Jaeger, R. Feb. 13, 1922. No Patent granted (Sealing fee not paid). Ink.-Printing-ink is made by treating waste sulphite-cellulose lyes with nitric acid and a catalyst, preferably metallic copper or zinc, the product being used with colouring-matters such as prussian blue and cinnabar, or being treated with sulphuric acid before the first reaction is completed to produce a black ink.