baber/WOPTO huggingface dataset:
Patent GB-203354-A (GB)
Title: Improvements in the purification of oils
IPC: C10G29/06
Filed: 1922-03-04
Abstract: Oils &c. are desulphurized or otherwise purified by bringing the liquid or vapour into intimate contact with material consisting of, carrying, or containing both one or more of the metals copper, zinc, cadmium, or iron, and one or more of an oxide, halide, or oxyhalide of the metal or metals.  In an example, 12 lb. of copper turnings or filings are heated in air until partially coated with oxide or oxides, and then agitated with 100 lb. of shale oil of high sulphur content.  The oil is separated by filtration.  In a second example, oil is filtered through a hot mixture of copper, copper oxide, and cuprous chloride obtained by heating granulated copper oxide with 10 per cent of salammoniac and 5 per cent of a paraffin lubricating oil. Pumice, bauxite, or similar carrier may be coated, impregnated, or mixed with the purifying agent.  For example, granular or powdered bauxite is impregnated with a 10 per cent solution of copper acetate and heated so as to leave a mixture of copper and its oxides distributed therein.  The Provisional Specifications also state that materials of a porous nature, such as manganese dioxide, magnesium carbonate or silicate, iron oxide or silicate, and coarse copper oxide, can be used as carriers for copper or an oxide of copper; and that copper can be used in conjunction with its sub-chloride, sub-bromide, or sub-iodide.
Patent GB-1086042-A (GB)
Title: Fluid pressure actuable jacks
IPC: B66D3/00
Filed: 1965-02-15
Abstract: 1,086,042. Hydraulic jacks; hauling cables. " SOTECO," SOCIETE TECHNIQUE CONTINENTALE. Feb. 15, 1965 [Feb. 15, 1964], No. 6487/65. Headings B8B and B8J. A traction and lifting device comprises a jack with a cylinder 1 in which is a piston 5 fixed to the end of a tubular rod 7 traversed coaxially by a fixed tube 10. The device is anchored to a fixed point by lugs 50 1 , 50 2  and a traction cable of a load (not shown) is passed through the tube 10, a mobile jaw 38 attached to the rod 7 and a stationary jaw 51 adjacent the lugs 50 1 , 50 2 , the jaws 38, 51 being held open for this purpose by pusher members 53. When the jack is fed with fluid under pressure on its rod side the rod 7 retracts, clamps 40 1 , 40 2  of the mobile jaw 38 being tightened on the cable by a spring 45 and by the resisting force of the cable. The cable is drawn to the left and slides between clamps 40 1 , 40 2  of the stationary jaw 51, causing it to open. The pressure fluid is supplied from a reservoir 15 by a pump operated by a handle 29. The reservoir 15 has a suction tube 16 on its centre line, it is more than half full when the rod 7 is fully extended so that as the effective cross-section of the piston 5 is greater on the left than the right the layer of air imprisoned in the reservoir 15 is compressed as the rod 7 is retracted. This provides a source of energy to extend the rod 7 after a complete retraction stroke when a discharge valve (32), Fig. 3 (not shown), is opened through a knob 37. Fig. 5 (not shown) illustrates an embodiment with an external source of pressure fluid. When the load is motorized, so that the movement of the cable is from left to right the' jack must supply a braking effort which is made possible by use of the pusher members 53 to loosen and tighten the clamps of the jaws 38, 51. Fig. 6 (not shown) illustrates an embodiment having a distributer (75) with three extreme positions. Manual control of members (84), (85) makes possible a controlled positive advancing movement, and also a controlled withdrawal movement of the cable and of the load (by acting on the pusher members 53 as previously described). In a further embodiment (not shown) the jaws 38, 51 are reversed and the pressure fluid is supplied to the left side of the piston 5 so that the positive direction is left to. right.
Patent GB-816287-A (GB)
Title: Anti-slip and protection means for gramophone record discs
IPC: G11B23/00
Filed: 1958-02-28
Abstract: 816,287. Phonograph &c. records. BLUNDELL, D. A. Feb. 28, 1958, No. 6493/58. Class 40 (2). A grooved rubber, plastic or the like material ring 1 is fitted around the edge of a gramophone record disc 2 so as to stand proud of the surface near the periphery, thus affording an anti-slip drive and protection of the grooved parts of the record surfaces. Modified cross-sections for the ring are also shown (Figs. 3, 4, not shown).
Patent GB-275117-A (GB)
Title: Improvements in motor-car bodies
IPC: B62D25/06
Filed: 1927-03-08
Abstract: 275,117. Fornaca, G. March 8, 1927. Bodies.-Closed bodies of vehicles comprise a skeleton frame composed of longitudinals, uprights and cross-members and the frame is engaged with the roof member by the upper crossmembers and longitudinals and with side panels by means of the uprights, the rear panel being secured to the side panels. The skeleton frame, as shown in Fig. 1, comprises uprights 6, 6<1>, 7, 7<1>, and 8, 8<1> with cross-members 2, 3, 4, 9, 11, 11<1> and longitudinals 1, 1<1>, 10, 10<1>. The roof member is engaged with the cross-members 9, 11, 11<1> by means of the roof cross-members 11<11>, 11<111>, the roof member being provided with sheet-metal margins adapted to be secured to the side and rear panels. The post 6 is of channel section, Fig. 3, reinforced with wooden battens 32 to support the windscreen 34 and to which post the front door is hinged by hinges 50 - - 52. The intermediate post 7 comprises a double channel 12, 13, Fig. 4, with offsets 14 and serves as the jamb post of the front door and as the hinge post of the rear door. The doors are of sheet metal so as to be slightly flexible. The rear side panels 29, Fig. 15, are welded to the posts 8, 8', Fig. 1, and at the rear turned over and formed with slots to take over bolts 30 by which they are secured to the rear panel 28.
Patent GB-900250-A (GB)
Title: Improvements in or relating to transistor switching circuits
IPC: H03K17/0812
Filed: 1959-02-25
Abstract: 900,250. Transistor switching circuits. SIEMENS-SCHUCKERTWERKE A.G. Feb. 25, 1959 [Feb. 25, 1958], No. 6584/59. Class 40 (6). In a transistor switching circuit in which a large - amplitude alternating switching voltage U2 is applied between the base and emitter electrodes of the transistor, a diode D1 and a resistor R1 connected to a negative voltage source are arranged as shown in the base circuit of the transistor. In the absence of switching voltage U2, which may be of sinusoidal form, the transistor conducts; the positive half-cycles of the switching voltage cause the transistor to be switched off while the negative half-cycles have no effect owing to the action of the diode D1 and hence cannot increase the base current above that determined by the negative bias voltage and the resistor R1. In order to limit the positive excursions of the voltage U2 as appearing at the base electrode of the transistor a further diode reversely connected with respect to diode D1 may be connected between the point P and the base electrode, the junction of this diode and the base electrode being taken through the further resistor to a source of positive potential, Fig. 2 (not shown). The diode D1 is preferably so chosen that the voltage developed across it when it is conducting is equal to that existing between the base and emitter electrodes of the transistor when base current flows, thereby ensuring that the switching of the transistor occurs when the voltage U2 passes through its zero value. In the modified form of circuit employing two diodes, the voltage developed across D1 is arranged to be equal to that developed across the second diode and the base emitter path of the transistor taken in series; thus the transistor and the second diode may be of germanium whereas the first diode may be of silicon. Alternatively the diode D1 may be replaced by two equivalent germanium diodes connected in series.
Patent GB-646633-A (GB)
Title: Improvements in or relating to jet-propulsion gas-turbine plants
IPC: F02K1/15
Filed: 1945-04-27
Abstract: 646,633. Jet propulsion nozzles. LOCKHEED AIRCRAFT CORPORATION. April 27, 1945, No. 6629/46. Convention date, March 6, 1942. Divided out of 646,632. [Class 110(iii)] [Also in Group XXIX] A gas turbine jet propulsion engine has a variable area propulsion nozzle the area of which is varied in response to changes of turbine speed and to changes in the turbine exhaust pressure so as to maintain the turbine at a constant speed. The effective cross-sectional area of the nozzle N shown is made variable by the moveable member 165. An increase of pressure in the exhaust cone S due to, for example, the burning of fuel in the turbine exhaust will be transmitted through passages 170 in the supporting arms 166 of the nozzle 165 to the rear face of the annular piston 167 and pushes it forward against the springs 169 to increase the effective area of the nozzle throat, thus causing a decrease in pressure in the exhaust cone S. The pressure in the rear of the cylinder 168 is also regulated by a needle valve 175 controlling a leak-off 178. The needle valve is actuated by a governor 149 driven by the turbine. An increase of turbine speed causes the valve 175 to open which lowers the pressure in the cylinder 168 and the springs 169 to move the piston 167 and nozzle rearwardly and decrease the effective throat area of the nozzle. This causes an increase of the back pressure on the turbine with a consequent decrease of its speed. The initial setting and adjustment of the governor 149 may be effected manually by the hand wheel 158 and screw 153 acting on the needle valve 175. Specification 646,632 is referred to.
Patent GB-1027087-A (GB)
Title: Gaseous flow reversal valve in a thermal regenerator
IPC: F23L15/02
Filed: 1964-02-18
Abstract: 1,027,087. Reversing values for thermal regenerators. MORGAN CONSTRUCTION CO. Feb. 18, 1964 [Feb. 20, 1963], No. 6696/64. Heading F4K. [Also in Division F2] In a regenerative furnace the combustion control system comprises a horizontally slidable valve 48 which controls the flow of gas in two parallel sets of one or more regenerators connected in series by ducts between the furnace and an ejector stack (not shown) mounted on the upper end of collar 80. In the form shown, combustion air to be heated is pumped in through duct 22 and is directed to one of the two sets of regenerators 12 or 14 (Fig. 1, not shown) by the valve 48, the underside of which is hollow. Exhaust gases from the other set of regenerators pass through the uncovered port and are drawn through aperture 76 up the ejector stack by the induction effect of air pumped through duct 26 and up between the collars 80, 82. The roles of the regenerators are interchanged by horizontal displacement of the slide valve 48. An air cylinder 70 provides the power for moving the valve. In a modification, Fig. 6 (not shown), suitable for large installations employing a heavy slide valve, the valve is fitted with rollers 71 which run on raised tracks 73, 75.
Patent GB-977013-A (GB)
Title: Improvements in or relating to devices for drawing off threads from weft bobbins of looms
IPC: D03D45/50
Filed: 1961-02-24
Abstract: 977,013. Automatic bobbin changing in looms. VALENTIN PATENT-GESELLSCHAFT G.m.b.H., and TEXTILMASCHINENFABRIK SCHWENNINGEN G.m.b.H. Feb. 24, 1961 [Feb. 26, 1960], No. 6792/61. Heading D1E. A tip bunch remover, Fig. 2, for the weft replenishing mechanism of Specification 977,012 consists of spring hooks 92, 93 mounted on the exterior of a suction tube 74 and protruding through ports 85, 86 into the bore of the tube. When the device is applied over the nose 100 of a bobbin to be transferred into the shuttle, the hooks snap over the tip bunch 108 and air is drawn in through the ports 85, 86. If the bobbins have no tip bunch, a suction tube as shown in Fig. 3 is used; it has grooves 130, along which air passes to loosen and draw off the end windings of the bobbin.
Patent GB-416416-A (GB)
Title: Improvements in the manufacture of cellulose from ligno-cellulosic materials
IPC: D21C3/20
Filed: 1933-03-07
Abstract: 416,416. Production of cellulose pulp. DREYFUS, H., 22, Hanover Square, London. March 7, 1933, No. 6884. [Class 96.] In a process for the production of cellulose, for paper or for the manufacture of cellulose derivatives, from ligno-cellulosic materials such as wood, straw or grass in a finely-divided state, e.g. as wood chips or mechanical pulp, the lignin is extracted by solution in an extracting agent comprising an organic liquid containing a carbonyl group or an aliphatic or cyclic ether. Examples of organic liquids containing a carbonyl group are ketones, ketonic substances such as pyruvic acid and diacetone alcohol, aldehydes, lower fatty acids, and esters of carboxylic acids, especially the lower fatty acids. Among the aliphatic or cyclic ethers are diethyl ether, ethyl propyl ether, di-isopropyl ether, dioxane, methylene ethylene ether, and homologues and derivatives of these cyclic ethers. Substances containing carbonyl groups, especially ketonic groups, and ether groups, such as tetrahydropyrone, are particularly useful. Preferably the solvent is mixed with water. The extraction is preferably carried out in a closed vessel at a temperature between 50 and 200‹ C., thorough impregnation being obtained by preliminary exhaustion of the vessel or by a sudden release of pressure within the materials as described in Specification 374,047. The extraction may be effected in a single or multi-stage process, and may be continuous or discontinuous, e.g. the material may travel counter to a stream of solvent. The solvent may be distilled from the lignin for re-use. Substances such as mineral acids or alkalies may be used in a pretreatment or with the solvent to exert a softening action. Resin may be removed prior to the extraction, e.g. by solution in benzene or a benzene-alcohol mixture. When the cellulose is to be used for cellulose acetate it may be pretreated for example as described in Specification 249,173, [Class 96]. In an example wood chips are extracted with 8-10 times their weight of a 50-60 per cent aqueous solution of dioxane for 2-3 hours in autoclave at 180-200‹ C., after which the solvent is withdrawn preferably without lowering the pressure and fresh solvent is introduced. The extraction is generally complete after 9 or 12 hours, the temperature being increased if desired in the later stages to about 220-230‹ C. The cellulose may be finally washed with water or alcohol. Specification 398,801 also is referred to.
Patent GB-1463031-A (GB)
Title: Abrading device
IPC: C23F1/04
Filed: 1975-02-19
Abstract: 1463031 Files BUCKBEE-MEARS CO 19 Feb 1975 [17 July 1974] 6955/75 Heading B3L An abrading device for metal or wood is formed by etching from a base material so as to provide a plurality of upstanding projections with substantially vertical side walls and flat tops, each projection having a top with a minimum dimension or diameter of 0À0015 inch and a minimum height of 0À0025 inch. The projections form cutting teeth with a density of 700-900 per sq. inch. The teeth may be of circular cross-section with a diameter of 0À003 inch or they may be of elliptical, or square in cross-section. The minimum dimension of the teeth preferably lies between 0À0025 and 0À0065 inch. The height of the teeth in relation to the base material is so arranged to provide a desired flexibility in the device depending on the surface contours it is desired to smooth.
Patent GB-570085-A (GB)
Title: Smoking appliance
IPC: A24F1/16
Filed: 1943-05-05
Abstract: 570,085. Cigarette holders, &c. HERZOG, K. May 5, 1943. No. 7097. Convention date, June 16, 1942. [Class 130] A cigar or cigarette holder comprises a holding portion 1 and a mouthpiece 2 separated by a detachable intermediate member 3 which includes hollow cylindrical members forming concentric passages to provide a circuitous smoke-path. The outer cylinder 5 of the intermediate member encloses a cylinder 7, 8, provided with a central partition wall 6. The cylinder 7, 8 encloses tubular portions 9, 10 which are notched 11, 12. End closure walls are provided at 14, 15, so that smoke passing into the tube 10 takes the path indicated by the arrows in reaching the mouthpiece. The device is also usable as part of a tobacco pipe.
Patent GB-286654-A (GB)
Title: Improvements in printing presses
IPC: B41F1/22
Filed: 1928-03-07
Abstract: 286,654. Vari-Kolor Press Co., (Assig. nees of Lee, G. E.). March 7, 1927, [Convention date]. Feeding and registering webs. - A web-printing platen press in which the web is fed from a supply roll 38 which is intermittently rotated by the pull of the web and can overrun to a certain extent, is constructed with three chases 101 mounted on a reciprocating bed 26, and co-operating with impression plates 102 in a fixed upper platen 25. The web is intermittently advanced by friction discs 53, 72 arranged to the left of the platers in Fig. 2, and the whole mechanism is supported by a frame 21 mounted on a pedestal 22. The platen impression mechanism and mechanism for cutting the printed web into sheets are as described in Specification 286,656. From the roll 38 the web passes over guide rollers 40, 44, 45, of which the roller 45 is just above the plane cf the plates 102, and the roller 44 is mounted so as to register the web accurately in a transverse direction. It is carried by adjustable screw trunnions 42, Fig. 8, and is formed with one fixed inclined flange 46, and with an adjustable flange 47 held in place by a screw 48 so that webs of different widths can be dealt with. The web-forwarding discs 53, 72 are normally pressed apart by weak springs, but when required to be operative are pressed together by a bar 74, Fig. 6, acted on by a spring 78 put in compression by a bar 79 acted on by a cam 82 operated by a handle 83. The lower discs 53 are geared to a pinion integral with a ratchet which is intermittently rotated by a pawl on an oscillating sector gear operated by a reciprocating rack actuated by eccentric mechanism from shaft 68.
Patent GB-733220-A (GB)
Title: Improved means for repairing gas and water mains and for making branch connections to such mains
IPC: F16L41/12
Filed: 1953-03-16
Abstract: 733,220. Stopping leaks; connecting branches and mains. PEART & CO., Ltd., E., and GLITHERO, S. Dec. 23, 1953 [March 16, 1953], No. 7154/53. Classes 99 (1) and 99 (2). A device for sealing a leak in a damaged pipe or for connecting a branch to a main comprises a sleeve having semi-cylindrical parts b, c secured together by bolted flanges d, and a two-part rubber or like liner, each part of which comprises spaced semi-cylindrical sections e, f, Fig. 2, fitting the sleeve with terminal beads g engaging grooves h in the sleeve, and flanges i connecting the sections and adapted to be clamped between the flanges d. The sleeve may have a boss to receive a branch pipe m adapted to register with a hole in the main a.
Patent GB-644781-A (GB)
Title: Improvements in or relating to the production of finely divided metal compounds
IPC: C01F7/34
Filed: 1947-03-14
Abstract: Finely-divided pulverulent hydroxides or carbonates are produced by mixing together a water-soluble metal salt, a water-soluble (sodium) carbonate or bicarbonate and a water soluble acid substance, all in the solid state, and in such proportions that the mixture when dissolved gives a substantially neutral solution, adding the mixture to water, and separating and drying the precipitate formed.  The metal salt may also constitute the acid substance, e.g. in the case of aluminium sulphate.  Other metal salts specified are ferrous sulphate and magnesium sulphate, the acid substance used with these compounds being sodium bisulphate or a solid acid.  The first stage of the drying should be carried out below 50 DEG  C.; the fully dried product may be heated to produce the oxide.  The products are suitable as filler material, for heat and sound insulation, or in the case of aluminium oxide, as a grinding or polishing medium.
Patent GB-853233-A (GB)
Title: Improvements in or relating to platform trucks
Inventor: HILBURN LUDWIG
IPC: B60K1/00
Filed: 1958-03-05
Abstract: 853,233. Vehicle body mountings. METALASTIK Ltd., and RANSOMES, SIMS & JEFFERIES Ltd. March 3, 1959 [March 5, 1958], No.. 7164/58. Class 108(2). A truck frame 10, is mounted on a horizontal sub-frame 19 by blocks 21 of rubber which are attached to brackets 22, 23. The blocks of rubber are inclined to the vertical so that under loads applied to the truck frame the slabs act in combined shear and compression. The blocks are similarly stressed under braking forces and sideways thrusts.
Patent GB-145136-A (GB)
Title: Improvements in and relating to gas producers
IPC: C10J3/80
Filed: 1919-03-22
Abstract: 145,136. Harger, J. March 22, 1919. Producers.-In a gas-producer which may be used either for making producer or water gas, the fuel is coked in the upper part of the producer and subjected to an alternating cross blast in the lower part. Distillation gases are withdrawn though an hydraulic main 14 by an exhauster 15. Regenerators 5, 6 alternately heated by the hot gases leaving the producer serve to preheat the air and steam or carbon dioxide, which, supplied by a pipe 16, pass through a recuperator 9 and by suitable adjustment of valves '7, 8 enter each side of the producer in turn. The gases generated pass out from the opposite side, through one of the regenerators 5, 6 and recuperator 9 to a gas outlet 21. Liquid slag flows away through passages 12. The Provisional Specification states also that a flux may be added to the charge, the base of the producer being wedge-shaped to form a channel for molten clinker, that peat, wood, or shale may be used, that part of the coked fuel may be removed, and that the producer may consist of a long narrow structure with or without partition.
Patent GB-897196-A (GB)
Title: Process for dyeing and printing fibrous materials made from polyacrylonitrile, mixed polymers containing acrylonitrile or cellulose acetate
IPC: C09B23/06
Filed: 1959-03-02
Abstract: Fibrous materials of polyacrylonitrile, mixed polymers containing acrylonitrile or cellulose acetate are dyed or printed with a cyanine dyestuff of the formula <FORM:0897196/IV (c)/1> in which A and B are supplementary members of a 5- or 6-membered heterocyclic ring, which can be substituted, R1 and R4 are alkyl radicals, R2 and R3 are hydrogen atoms or nitrile groups or other substituents usual in cyanine chemistry, R5 is a dialkyl-substituted amine radical or an aryl, alkoxy or aryloxy radical or a nitro group or another substituent usual in cyanine chemistry, D is an arylene radical, X is an organic or inorganic anion and n, m and o are 0 or 1.  The dyebaths or printing pastes may contain the usual levelling or dispersing agents and dyeing may be effected from an acid or neutral bath at the boil.  Numerous dyestuffs are specified and examples of dyeing and printing are given.  Specifications 897,195 and 897,197 are referred to.