baber/WOPTO huggingface dataset:
Patent GB-741729-A (GB)
Title: Production of ammonium sulphamate
IPC: C01B21/093
Filed: 1952-07-16
Abstract: Ammonium sulphamate is made by reacting together substantially anhydrous gaseous sulphur dioxide and gaseous ammonia, the ammonia being in excess of 4 mols of ammonia to 3 of sulphur dioxide at above 150 lbs. per sq. inch, and at 200 DEG -400 DEG C.  Reference has been directed by the Comptroller to Specification 696,996.
Patent GB-260655-A (GB)
Title: Improvements in and connected with boiler gauge glasses
IPC: G01F23/02
Filed: 1926-03-30
Abstract: 260,655. Babcoch & Wilcox, Ltd., and Weston, S. F. March 30, 1926. Gauge glasses.-A guard for boiler gauge glasses comprises a set of vertical metal slats 1, arranged radially, and secured between plates 2 of a frame 3. Semicylindrical wire mesh screens 4, 5 are also provided, with the wires arranged diagonally. Semicircular recesses may be provided on the rear edges of the slots to facilitate inspection. Specification 211,362 is referred to.
Patent GB-894807-A (GB)
Title: Improvements in or relating to the extraction of uranium
IPC: C01G43/00
Filed: 1960-05-23
Abstract: In a process for recovering uranium from an aqueous solution containing uranium and molybdenum by extraction with a water-immiscible organic liquid containing an amine, the organic liquid extract, which also contains molybdenum, is reacted with a reducing agent to lower the valence state of the molybdenum to prevent precipitation of a molybdenum complex, and then the uranium is stripped from the organic liquid extract.  The aqueous phase may be one obtained by leaching a uranium ore with sulphuric or hydrochloric acid.  In examples, aqueous solutions containing uranium and molybdenum are contacted with solutions of a tertiary alkyl amine having alkyl groups of 8, 10 and 12 carbon atoms derived from coconut oil acids, in a mixture of kerosene and isodecanol, the organic liquid extracts are contacted with aqueous solutions of sodium sulphide and sodium thiosulphate to reduce the molybdenum, and then with aqueous sodium chloride solutions to strip the uranium.  The amine solution is recycled, a portion being contacted with an aqueous sodium carbonate solution to remove molybdenum.  Other secondary or tertiary amines having alkyl groups containing 8 to 22 carbon atoms may be used and examples are mentioned.  Other reducing agents mentioned are nascent hydrogen, hydrogen sulphide and sodium hydrosulphide.
Patent GB-292614-A (GB)
Title: Improvements in and relating to hermetic closures for pressure vessels
IPC: F16J15/08
Filed: 1928-06-22
Abstract: 292,614. Bredtschneider, K. June 24, 1927, [Convention date]. Joint-making packing. - An. elastic metallic gasket d, Fig. 1, is provided between a cover a and the wall b of a vessel, and is retained by a ring e. The ring e is kept in place by one or more members f fitting in a recess in the wall b. The cover a, gasket d and ring e are held in their assembled positions by a ring i and bolts h. The gasket d is compressed by the internal pressure in the vessel b transmitted through the conical surface c on the cover a. The ring e may alternatively be secured by inclined bolts passing through it into the wall of the vessel. In a modification, Fig. 2, the ring e is secured by a number of conical ring sections f<1>. The gasket d may be so formed that only its angles are in contact with the parts a, b, e. The gasket, may be slit like a piston ring, and more than one may be used.
Patent GB-662496-A (GB)
Title: Improvements in purifiers for cereal products
Inventor: WOOD JOSEPH FLAWITH LOCK
IPC: B02B1/02
Filed: 1949-07-11
Abstract: 662,496. Cereal purifiers. SIMON (HOLDINGS), Ltd., H. June 29, 1950 [July 11, 1949] No. 18243/49. Class 117. In a cereal purifier comprising a reciprocating sieve a-d, with parallel tray structures o, p, disposed transversely thereabove and spaced from each other to provide narrow ducts q through which air is drawn upwardly through the sieve, means are provided to allow air to be drawn upwardly through the tray structures o, p, as well as through the ducts q so that a more uniform aspiration over the whole sieving area is obtained. As shown in Figs. 1, 2, 6 the collecting top o of each tray structure is formed separate from the side walls p, which are supported between end walls s, and have depending brackets r at each end each formed with a projecting lug t. The lugs t engage in slots in the adjacent end walls s to allow the top o to be clamped at any desired height above the top edges of the side walls p thereby providing an adjustable air intake. Fig. 10 shows an alternative arrangement wherein the top o is mounted on and urged upwardly by leaf springs x, the amount of lift so caused being controlled by a screw-threaded rod z engaging a crosspiece 3 pivoted to the underside of the top o. In a further arrangement shown in Fig. 15 the top o is rigid with the side walls, and air intake slots 6 with adjustable flaps 7 are provided in the latter. Specification 645,590 is referred to in the Provi-- sional Specification.
Patent GB-166587-A (GB)
Title: Improvements in and relating to carburetters for internal combustion engines
IPC: F02M9/08
Filed: 1919-07-23
Abstract: 166,587. David, G. July 23, 1919. Spray carburettors.-The nozzle 11 is provided with a bulbous head 12 containing fuel ports 13<1> and arranged within the most contracted portion 13 of a perforated choke tube 9. Secondary air is admitted through a pipe 1 and the perforations 10 m the choke tube. The pipe 1 may be tapering and provided with a suction-actuated valve 4 the flaps 2, 3 of which are of unequal size, or the pipe may be cylindrical, in which case the Haps 2, 3 are not in the plane of the axis of the spindle. The valve 4 is loaded by a weight 6, the effect of which is augmented on an up-grade. In a modification, the nozzle is provided with a tube 38, Fig. 3, which in conjunction with an adjustable pipe 41 passing through the throttle valve, acts as a pilot jet when the throttle is closed. In a further modification, the portion 42 of the tube 38 is dispensed with and a tube integral with the fuel metering plug 42<1> extends within the nozzle. The butterfly throttle valve may be replaced by a plug valve provided with a cross-tube or with a V-shaped passage in its wall for slow-running mixture. In either form of throttle valve the slow-running passage may be controlled by a needle valve 45. Reference has been directed by the Comptroller to Specifications 1391/06 and 10859/07.
Patent GB-889763-A (GB)
Title: Strong calcium silicate hydrate product and process of making same
IPC: C04B28/18
Filed: 1958-06-09
Abstract: A self sustaining autoclaved article of apparent density of 15-40 lbs/cu. ft. and a transverse strength in excess of 100 lbs/sq. inch comprises a dense matrix of calcium silicate hydrate with 16-70% by volume of macroscopic spherical voids, and fibres at a density of 0,25-5,0 lbs/cu. ft., and at least 90% having a length between 0,3 to 2,5 centimetres.  Fibres specified are asbestos and cellulosic e.g. bagasse plant stems and aspen wood, and the cellulosic fibres are pre-soaked in water, caustic soda or sodium silicate before incorporating in the slurry from which the article is moulded.  For the higher density product fillers, e.g. sand or gravel, are added. The products are obtained by forming a stable foamed aqueous slurry of the components and autoclaving under steam pressure to react the calcareous and siliceous materials.  Specified are calcareous-burnt and hydrated lime, portland cement, lime containing hydraulic and natural cements, and their mixtures; siliceousdiatomaceous earth, artificial or natural pezzolanas, sand, fly ash, ground silica and their mixtures.  The foam is pre-formed by gassifying a dilute solution of a foaming agent in water, e.g. saponin, peptones, albumin, soap bark, water soluble cellulose ethers, hydrated cellulose dispersions, alkyl-naphthalene sulphonates, stabilized soaps and hydrolized proteins.  Foam stabilizers e.g. burtenite may be added.
Patent GB-1001440-A (GB)
Title: Improvements in or relating to a sawbench assembly
IPC: B23D57/00
Filed: 1964-05-05
Abstract: 1,001,440. Sawings. SHER POWER TOOLS PTY. Ltd. May 5, 1964 [May 15, 1963], No. 18557/64. Heading B5L. A sawbench assembly comprises male and female box-like components 7, 8 closely fitting in telescopic relationship and each consisting essentially of five substantially rectangular faces and one open face, the lower 7 of the components being adapted to be mounted with its open face uppermost on a supporting base 9 so as to be slidable thereon, and the other component 8 fitting over the lower component with its open face lowermost whereby the outside surface of the face opposite the open side of the upper component forms a flat table the height of which is adjustable by changing the amount of telescoping of the components. The lower component is formed with slotted fins 10 whereby it is adjustably secured by screw 11 to the supporting base. One or more of the side faces 14 of the upper component is provided with slots which co-operate with screws and threaded apertures in the lower component to provide means for adjusting the vertical position of the upper component on the lower. A cylindrical guide sleeve depends from the lower surface of the upper surface 13 of the upper component and receives a cylindrical bar 16 upstanding from the lower surface of the lower component; a spring on the cylindrical bar acts against the sleeve to urge the upper component upwardly when the screws securing the components together are released. The upper surface 13 of the component 8 is formed with a slot 22 for a circular saw 23 which is mounted on the spindle 20 of an electric tool, such as an electric drill 19 mounted on a supporting bracket 18 adapted to be secured to the supporting base. The height of the surface 13 may be so adjusted that the main lower portion of the saw 23 is within the box assembly. A guard 24 may be pivotally connected to a bracket 25 which is detachably secured to the upper component 8 and may act as a splitter. A detachable rip fence is adjustable along a guide rail fixed by brackets to the upper component. A further guide fence having inclined guides 29, 30 and a depending flange which engages a guide rail 31 may be provided to enable angular cuts to be made. The various parts including the tool may be packed within the box components for storage or transportation. The height of the table may be adjusted so that the shaft of the tool may be used for dowelling, sanding, routing or grooving.
Patent GB-185957-A (GB)
Abstract: 185,957. Urquhart, H. M., and Paterson, A. Sept. 15, 1921. Tyres, elastic, and tyre covers, tools for removing and replacing.-A tool for manipulating split rims for mounting and dismounting tyres consists of a forged or cast-iron centre-piece a drilled and tapped to take a threaded rod b and sockets f to take two rods c spaced 120 degrees apart. The rods carry steel pads d to bear on the rim, that on the rod b being rotatable. The rod b is turned by a tommybar inserted in the hole e.
Patent GB-927658-A (GB)
Title: Process for improving the properties of finely divided silica
IPC: C09C1/30
Filed: 1961-05-23
Abstract: Finely divided silica which is prepared by precipitation, is coated by a known process with an amine, a quaternary ammonium compound, a salt of these substances, a fatty acid amine, e.g. 8-22 C atoms, or with a mixture of these substances and the coating is then completely burnt off in less than 1 second in O2 by heating to its ignition temperature.  The coating may take place in aqueous solution or dispersion and the coated silica is dried before burning, e.g. in air.  The silica may then be heated for 4-10 seconds to 700 DEG -800 DEG C.  In an example, a washed press cake of SiO2 is peptized with 1% acetic acid, coated with 2-5% coconut oil amine, dried and ground. The powder is air fed via a vibrating screen to the bottom of a sinuous vertical tube, heated externally, together with O2.  The burning may be at 600 DEG -750 DEG C. using 3 parts air to 1 part O2 and 1 1. gas/g. SiO2.  The SiO2 discharged at the top of the tube is separated in a cyclone.
Patent GB-835896-A (GB)
Title: New aryloxazolyl-ethylene derivatives and process for their manufacture
Inventor: SIEGRIST ADOLF-EMIL
IPC: C07D263/62
Filed: 1956-06-15
Abstract: The invention comprises new aryloxazolyl-ethylene derivatives of formula <FORM:0835896/IV (b)/1> in which R1 and R2 each represent an alkyl residue. They may be produced by heating two molecular proportions of an ortho-hydroxy-aminoaryl compound with one molecular proportion of thiomalic acid or an alkyl mono- or di-ester thereof. The reaction is advantageously carried out in the temperature range 100-200 DEG  C. in an inert organic solvent such as monochlorbenzene, dichlorbenzenes, trichlorbenzenes, nitrobenzenes, toluene, xylenes or cumene.  The compounds formed may be treated with agents capable of splitting off water to give di(aryloxazolyl)-ethylenes in accordance with the process described and claimed in Specification 835,897.  In the examples details are given of the preparation of <FORM:0835896/IV (b)/2> <FORM:0835896/IV (b)/3> and <FORM:0835896/IV (b)/4> These compounds when heated with zinc chloride lose water to give the corresponding a ,b -di-[benzoxazolyl-(2)]-ethylenes.
Patent GB-728232-A (GB)
Title: Improvements in or relating to processes of and apparatus for melting melt-spinnablesubstances
IPC: D01D1/04
Filed: 1952-07-23
Abstract: <PICT:0728232/IV (a)/1> Solid particles of a melt-spinnable substance, particularly a high polymer such as a polyamide, are continuously fed to a melting chamber; a portion of these particles is melted by contact with solid heating surfaces located in the melting chamber; that portion which has not been so melted is retained within the melting chamber and melted by heat exchange with a stream of the same substance in the molten state, this stream comprising the liquid obtained from the particles which are melted by contact with the solid heating surfaces; and all of the molten substance is allowed to collect in a reservoir located in the lowermost portion of the melting chamber.  The stream of molten substance used for melting that portion of the solid particles which is not melted by the solid heating surfaces may be augmented by molten substance drawn from the reservoir.  As shown in Fig. 1, granules, chips or like particles of solid polymer 10 are fed from a supply-vessel 11 to a melting apparatus 12.  This apparatus comprises a funnel 14 which is heated by electric resistances 15 or by other means so that particles of solid polymer coming into contact with the walls of the funnel melt and the resulting liquid penetrates into the lower part of the apparatus.  The central mass of the solid polymer descends by gravity concurrently with the liquid, leaves funnel 14 and falls into an unheated basket 16 where it is washed by the liquid polymer and heated thereby so that it melts.  The undissolved mass of particles in the basket acts as a filter bed for the liquid.  Molten polymer drips from the basket and is collected in sump 17.  Inert gas may be circulated through the apparatus 12 by way of inlets 19 and outlets 20.  The temperature of the whole apparatus may be maintained at a desired value by means of fluid circulation in one or more jackets 21.  From sump 17, the liquid polymer passes to a pump 22 and spinneret 23.  According to the shape of the orifices, filaments, ribbons, rods, sheets or other articles may be obtained.  Preferably the conditions of operation are adjusted so that part of the basket 16 and the solid polymer therein are immersed in the liquid collected in the sump.  The rate of melting of the solid so immersed is less than if it were above the liquid level.  The melting thus becomes self-adjusting according to the consumption, since the liquid level rises if the rate of consumption decreases.  The heating devices may be thermostatically controlled.  If desired, the melting apparatus may be provided with a pump and conduits for removing some of the liquid from the sump and returning it to the basket 16 so that it descends through the mass of solid polymer therein and assists in the melting of the solid polymer.  Heating devices may be provided along the pipe line through which passes the recirculating liquid from the sump.  Specification 728,233 is referred to.
Patent GB-596166-A (GB)
Title: Improvements relating to hinges for oven and like doors
IPC: E06B3/36
Filed: 1945-07-23
Abstract: 596,166. Doors for ovens. RADIATION, Ltd., and MULROY, V. R. July 23, 1945, No. 18841. [Class 126] [Also in Group XXV] An oven or like door is provided with a hinge construction designed to enable the door to be easily mounted in position or detached. The door d carries a pair of trunnions e and f adapted to engage a pair of sockets band c mounted on the oven, the arrangement of the sockets and trunnions being such as will permit sufficient vertical movement of the door to enable the trunnion f to be engaged with or disengaged from its socket c while the trunnion e is engaging its socket b, and at least the latter socket being formed with a truncated conical bore such as will allow the associated trunnion and door to be tilted relatively to this socket while the door is being placed in position or removed. The lower trunnion is provided with a collar h. Alternatively, the trunnions may be mounted on the oven and the sockets on the door.
Patent GB-240776-A (GB)
Title: Sewing machine needle controlling mechanism
IPC: D05B3/02
Filed: 1925-07-24
Abstract: 240,776. Fairweather, W., (Singer Manufacturing Co.). July 24, 1923. Sewing-machines; needle-driving mechanism, disconnecting and controlling; multiple-needle machines. - A machine having means for temporarily throwing out of action one of a number of needles is provided with a device for automatically recoupling the needles after a predetermined number of stitches. The mechanism is of the kind described in Specification 228,085, and comprises an auxiliary needle-bar 13 which is coupled to a primary needle-bar 9 by a pin 26 sliding in a lug 25 to enter an aperture in the bar 9. The pin extends from a block 29 sliding on a vertical pin 30 which is mounted on a slide-block 31. The slide-block is pivoted to a rocking arm 37 connected by a link 39 to a lever 40 stressed by a spring 42 in a direction to hold the pin 26 in coupling position. The lever 40 is connected by a link 45 to a manuallyactuated lever 46. Uncoupling of the two bars except at the top of a stroke is prevented by a stop member 51. The needle-bar 13 is retained in disconnected position by a catch 53 until recoupled by mechanism described below. A spring- stressed buffer-rod 56 limits the upstroke of the disconnected needle-bar. The lever 40 is retained in position to keep the needle-bar disconnected by a spring latch 61 which engages a stud 59 on the lever. The latch is moved to release the stud after a predetermined number of stitches by a tappet 68 mounted on a shaft 70 which rotates within a sleeve 71 journaled in a bushing. An indicator disc 75 is fixed to the sleeve 71 and beyond the disc is a tappet-adjusting head 79 which may be locked at different positions to the disc by moving it endwise against the action of a spring and rotating it to vary the position of a locking-pin. An arm 85 mounted on the bushing 72 and continuously oscillated by a pitman 88 and eccentric 91 and carries a pawl 93 adapted to engage the teeth 95 on a ratchet wheel 96 stressed by a coil spring 98 so that a stop 102 thereon engages an adjustable stop 103 on the framing. A stop pawl 108 prevents retrograde movement of the ratchet wheel during actuation by the pawl 93. When the needle-bars are coupled together, both pawls are held away from the wheel 96 by the engagement with a shoulder 110 on the pawl 108 of a stud 111 on the arm 40. In operation, the number of single-needle stitches to be made at a corner is determined by moving the graduated disc 75 to the desired index mark which causes the adjustment of the releasing tappet 68. When the disconnection of the needle is manually effected at the approach to a corner the pawls 93, 108 are allowed to engage the wheel 96 owing to the movement of the retaining stud 111 and the wheel 96 is then advanced step by step until the tappet 68 comes into operation to put the disconnecting mechanism out of action.
Patent GB-376488-A (GB)
Title: Improvements relating to hinges
IPC: E05D5/10
Filed: 1931-07-01
Abstract: 376,488. Hinges. RADIATION, Ltd., Thimble Mill Lane, Aston, Birmingham, and YATES, J. H., 15, Grosvenor Place. London. July 1, 1931, No. 18975. [Class 65 (ii).] In a hinge for an oven door, having an eccentric pin associated with a rotatable part which is arranged to be adjustable to shift the axis of the pin and ensure accurate closing of the door, the pin is arranged eccentrically on a screw-threaded member rotatably carried in the bracket supporting the pin, and means are pro. vided to secure the member. As shown in the Figure, the bracket b fixed to the oven front has a screw-threaded hole in which a plug d engages ; the pin a, which engages a socket g on the door, is carried eccentrically on the plug d. The plug d is slotted to receive a tool by which it may be turned from below, and has a screw-threaded hole to receive a screw h by which it is expanded to grip the hole in the bracket b and is thus fixed in any position. Any convenient means may be provided to fix the plug after adjustment.
Patent GB-404278-A (GB)
Title: Improvements relating to protective apparatus for electrically operated vehicles
IPC: B60L3/04
Filed: 1932-07-05
Abstract: 404,278. Protective arrangements ; switching systems. RAMSDEN, H. K., 26, Ashlands, Ashton-on-Mersey. July 5, 1932, Nos. 19025 and 24966. [Class 38 (iv).] A polarized switching apparatus for connecting the chassis of a trolley bus or like vehicle to that supply conductor which has the lower or earth potential also controls an electromagnetic switch which makes connection between the circuits on the vehicle and the trolleys. In one form, Fig. 1, a wound armature 12 lying between permanent magnet poles is connected across conductors 6, 7 connected to the respective trolleys 4, 5 and a contact arm 16 operated by the armature and biassed to a mean position connects the chassis 28 to the appropriate vehicle circuit conductor 20 or 21. Auxiliary contacts 31, 32 are closed by the movement of the armature to energize an electromagnetic switch 24 which connects the conductors 6, 7 to the conductors 20, 21 when the chassis connection has been effected. In a modification two electromagnetic switches connected each in series with a rectifier are connected across the conductors 6, 7 in parallel, the rectifiers being conductive in opposite directions. Interlock contacts on the switches control the switch 24. The conductors 20, 21 supply the motor circuits of the vehicle as well as the lighting and other auxiliary circuits.
Patent GB-1063640-A (GB)
Title: Improvements in apparatus for unloading loaves of bread from bakery pans
IPC: A21B3/18
Filed: 1964-05-07
Abstract: 1,063,640. Unloading bread from bakery pans. W. DE RIDDER. May 7, 1964 [May 8, 1963], No. 19068/64. Heading B5A. Apparatus for unloading loaves of bread from bakery pans 6 comprises a delivery conveyer 3 for the pans, a device 5 for lifting the pans and swinging them to a position above a discharge conveyer 2, and a further conveyer 4 for discharging the unloaded pans. The loaves fall upside down on to a plate 12 which is then swung to the position shown in full lines in Fig. 2 (not shown) so that the loaves are fed by a guide 21 into an upright position on the conveyer 2. The device 5 for lifting and swinging the pans 6 comprises jaws 9, 10 biased towards each other by a spring (16) (Figs. 3, 4, not shown) but held apart in the pan-receiving position by engagement of an abutment (20) with a rod (14) carrying the jaw 10. Operation of the apparatus is controlled by electric switches A . . . E, which prevent delivery of further pans before the preceding set have been unloaded, swung back and discharged.