baber/WOPTO huggingface dataset:
Patent GB-410652-A (GB)
Title: Process for evaporating, concentrating and distilling
IPC: B01D3/34
Filed: 1933-08-11
Abstract: <PICT:0410652/III/1> <PICT:0410652/III/2> <PICT:0410652/III/3> In evaporating liquids in a heated evaporator 1 with the aid of a gas introduced as a partial pressure reducing agent, the gas is preheated in a heat exchanger w<1> by the escaping vapours, and also preferably in a heat-exchanger w<2> by the waste steam used for heating the evaporator.  The partial pressure reducing agent, e.g. air, is, in Fig. 3, blown in by a fan 6 through an ejector 7 where it mixes with and cools the vapours and air evolved from the evaporator 1 and condenses the vapours, which are separated in a cyclone 8.  Excess air is removed through a pipe 13, while the remainder is passed through a pipe 11 or pumped by a pump 6<a> into the liquid through a distributer 12 maintained at a constant level by a float 14.  The liquid is supplied through a preheater 18 where it is heated by the waste steam from the heating jackets 2, 17.  The liquid may be circulated in the chamber by a pump and sprayer.  In a modification the air in its passage through the pipe 11 is preheated by the waste steam from the jacket 2.  In the modification shown in Fig. 6 part of the mixed stream is circulated back to the pump 6 through a cooler 27 where it is washed with condensate circulated by a pump 31 from a collector 30.  Other modifications are described in which the system is adapted for use in multiple effect.  Other gases, e.g., hydrogen, nitrogen, furnace gases, &c. may be used instead of air and the process is applicable to the distillation of lubricating oils and the concentration of volatile acids and alkaline liquids.
Patent GB-655217-A (GB)
Title: Improvements in or relating to rotor assemblies particularly for helicopters
IPC: B64C27/43
Filed: 1948-08-26
Abstract: 655,217. Helicopter rotors. UNITED AIRCRAFT CORPORATION. Aug. 26, 1948, No. 22504. Convention date, Sept. 12, 1947. [Class 4] A rotor assembly, intended more particularly for use as a torque-counteracting tail rotor, comprises two diametrically opposed blades 34 mounted for pitch-changing movements on stub arms 38 of a hub 32, the latter being mounted on a hollow driving shaft 16 by pivots 30 whose axis F-F is obliquely inclined to the pitch-changing axis P-P of the blades 34. Pitch change is effected by a manually reciprocable control rod 60, coaxial with the driving shaft 16, and connected to control horns 58 on the blade roots by a transverse member 62 and links 66.
Patent GB-424493-A (GB)
Title: Process of impregnating hides, skins, leather, and fibrous or porus materials with a colloidal solution of rubber
IPC: D06M15/693
Filed: 1933-08-12
Abstract: Fibrous or porous materials such as leather are waterproofed and hides or skins are tanned by impregnation with a colloidal solution made by emulsifying with water a 5 per cent solution of rubber in any of the fractions obtained in rectifying crude rubber distillate over the range 140 to 320 DEG  C.  The crude rubber distillate after washing with alkali, decanting, washing with an acid such as sulphuric acid, again decanting and washing with water, is rectified in the presence of calcium chloride or an alkali such as lime and caustic soda.  The emulsions may be made (1) by dissolving rubber, vulcanized or not, or latex, in the distillate, adding a resin such as a molten condensation product, a gum, a cellulose derivative solution or an emulsion of dextrine, maltose or gelose together with an organic tanning agent and emulsifying with water; (2) by emulsifying the rubber distillate in an aqueous solution of a chromium salt or a synthetic tanning agent, adding rubber dissolved in the distillate and agitating, for example, in a fulling mill; (3) as in (1) or (2) the tanning agent or chromium salt being replaced by an alkali or oil such as sodium sulphoricinate as emulsifying agent; (4) as in (2) using water in place of the solution of chromium salt.
Patent GB-251833-A (GB)
Title: An improved cylinder head for heavy oil engines
IPC: F02F1/42
Filed: 1925-09-10
Abstract: 251,833. Fornaca, G. Sept. 10, 1925. Vaporizers, external. - A cylinder head has a straight inlet passage 4 and an exhaust passage 6 which is branched in U form and surrounds the inlet passage and thus the exhaust heats the mixture. The valve guides and the passages are waterjacketed.
Patent GB-685881-A (GB)
Title: Improvements in single spindle automatic lathes
IPC: B23B7/02
Filed: 1950-09-14
Abstract: 685,881. Control of several motors. CONE AUTOMATIC MACHINE CO., Inc. Sept. 14, 1950 [Sept. 15, 1949], No. 22630/50. Class 38 (iii) [Also in Groups XXII, XXIV and XXX] In an automatic lathe (see Group XXII), three electric motors SM, HM, M, are connected in a single control system which is operated partly by push-buttons and, in part, automatically. The electric motor M rotates the lathe spindle. A stock feeding carriage is moved by the reversible motor SM, and fluidpressure for operating the machine is supplied by pumps rotated by the motor HM. Electrical means control hydraulic reversing valves by means of solenoid-actuated racks engaging pinions on the valves. Duplicate electric control panels are provided on the back and front of the machine. The main motor M, is started by a push-button 510 and the motor HM by a switch 535. Initially, switches LS4 to 7 are closed by tool slides in their retracted positions. A switch 560 is then closed by the operator and, when a dog on a main camshaft closes a switch LS1, the slides begin their forward strokes. Three of the slides are returned when a switch LS3 is actuated by a main cam-shaft. The fourth slide is returned similarly by a switch LS2. A further cam on the shaft then actuates a switch LS10 to move a hydraulic valve and rotate a stock stop into position. Closing of a switch FOR by the operator energises the motor SM for a time pre-determined by a delay switch 669, a slipping-clutch operating when the work has contacted the stock stop. When the carriage reaches the forward limit, a switch LS9 is actuated, the machine is stopped, and the motor SM is automatically reversed. The operator may then remove any stock-end and start the machine again.
Patent GB-301412-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01J61/28
Filed: 1927-08-29
Abstract: 301,412. Dicker, S. G. S., (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). Aug. 29, 1927. Low-pressure metallic-vapour apparatus. In mercury discharge tubes having an incandescent cathode, the mercury is so enclosed that it cannot flow on to the transmitting part of the tube, on which metal, used as a getter, is deposited, it being contained in the space surrounding the stem of the tube. A screen for this purpose is provided on the wall of the tube and extends round the stem of the tube or round the conductors or supports therein. In the discharge tube shown the cathode 2 is formed of a tungsten helix on which a nickel wire is wound, a coating of barium oxide being formed by precipitation of barium thereon. A small quantity of mercury 11 is maintained at the base of the tube by a screen 12 sealed to the wall 1 and surrounding the cathode conductors or support, the mercury thus being prevented' from passing into the body of the tube. Sealed into the wall are anodes 3, 4 and tubes 6, 7 by means of which a liquid or gas entering at 9 and leaving at 10 may be treated with ultraviolet rays. To enable this to-be done, the tube 6 is formed of quartz or glass which transmits the rays and the outer wall 1 and the admission tube 7 of ordinary glass. The discharge tube may contain argon or neon in addition to mercury vapour and be used for luminous purposes, and in its formation magnesium or barium is vaporized to remove detrimental gases or vapours.
Patent GB-402547-A (GB)
Title: Improvements in or relating to counter weighing scales
IPC: G01G1/18
Filed: 1932-08-13
Abstract: 402,547. Weighing-apparatus. AVERY, Ltd., W. & T., and TIMSON, W., Soho Foundry, Birmingham. Aug. 13, 1932, No. 22709. [Class 143.] Counter scales.-In a counter scale of the Roberval type each of the pan supports 7 has at its lower end an inwardly-directed portion 7a which serves to carry the supporting means for the bearings co-acting with the knife-edges 17 of the weighbeam 9, a self contained unit being formed by the pan supports, weighbeam, co-operating stay 10 and a central support or abutment 12 for the weighbeam and stay. The central support or abutment is bolted to the underside of the top of the housing 8 and carries oppositely-directed knife-edges for the stay 10 to abut against, the lower end of the support branching out into upturned ends to provide bearings for the fulcrum of the weighbeam. The pan supports may be provided with projections 7b to retain the bearings in position. Specification 401,412 is referred to.
Patent GB-987431-A (GB)
Title: Reactive azo dyes containing at least one haloacylaminomethyl group and processes for their production
Inventor: BLASS ULRICH
IPC: C09B62/47
Filed: 1961-06-22
Abstract: The invention comprises water-soluble reactive azo dyes which contain at least one group of the formula -arylene-(CH2-NH-CO-R-Hal)n where R represents a divalent saturated or unsaturated aliphatic radical which may be substituted by halogen and possesses 1 to 3 carbon atoms, n represents one of the integers 1 or 2, Hal represents chlorine or bromine and arylene represents an arylene radical of the benzene or naphthalene series which may contain one or more alkyl or alkoxy groups with 1 to 5 carbon atoms and in addition one or more halogen atoms and is linked to the residue of the azo dye molecule either through a secondary or tertiary amino N atom or through the available N atom of a 5-pyrazolone ring and a process for the preparation thereof which consists in condensing in concentrated sulphuric acid, preferably of 85-100% strength or in concentrated phosphoric acid, at a temperature between 0 DEG  and 30 DEG  C. (a) a water-soluble monoaze or disazo dye having at least one aryl radical of the benzene or naphthalene series (which may contain one or more alkyl or alkoxy groups with 1 to 5 carbon atoms and in addition one or more halogen atoms) which is linked to the residue of the azo dye molecule either through a secondary or tertiary amino N-atom or through the available N atom of a 5-pyrazolone ring with (b) an N-halogenomethyl or N-hydroxymethyl derivative of an amide of a saturated or unsaturated chloro-or bromo-carboxylic acid containing 2 to 4 carbon atoms or the symmetrical ether corresponding to such N-hydroxymethyl derivative, the reactants being so chosen that the group -CH2N-CO-R-Hal enters into the said radical.  In a modified process an azo dye intermediate is employed instead the azo dye (a) and after the condensation reaction, the condensation product is converted to an azo dye by a process involving an azo coupling reaction.  The reactant (b) may be prepared by reacting formaldehyde, or a compound yielding formaldehyde on cleavage, and an amide of a saturated or unsaturated chloro- or bromocarboxylic acid containing 2 to 4 carbon atoms and may be used in the medium in which it is prepared.  The dyes are suitable for dyeing, padding or printing wool, silk, synthetic polyamide fibres and fibres of natural and regenerated cellulose.  Among the many examples relating to the preparation of mono-and disazo dyes are described processes in which the dye obtained by coupling diazotized 1-aminobenzene-2-sulphonic acid with 2-(21,41,61-trimethyl) - phenylamino - 8 - hydroxynaphthalene-6-sulphonic acid is condensed with chloracetic acid-N-hydroxymethylamide in the presence of sulphuric acid (1), and 3-amino-21,41 - dimethyl - 1,11 - diphenylamine - 41 - sulphonic acid is treated with symmetrical dichloro-dimethyl ether in sulphuric acid and the product is diazotized and coupled with 1 - (21,51 - dichloro) - phenyl - 3 - methyl - 5-pyrazolone-41-sulphonic acid (5).
Patent GB-408858-A (GB)
Title: Apparatus for silencing the noise from internal combustion engines, specially for aeroplanes, automobiles, motorcycles and the like
IPC: F01N1/08
Filed: 1933-08-16
Abstract: 408,858. Exhaust-silencers. SWENSEN, T., WETLESEN, H., GEELMUYDEN, K., and UNDALL, A. R., (trading as AERO MOTOR SILENCER), 21, N. Slottsgate, Oslo, Norway. Aug. 16, 1933, No. 22883. Convention date, Aug. 16, 1932. [Class 7 (ii).] A silencer of the kind comprising one or more tubes one within the other forming a to-and-fro passage for the gases is provided with narrow funnels or pockets open only at the end first encountered by the gases. The form shown comprises three concentric tubes 1, 2, 3 communicating with each other by holes 9, 10, 11 and fitted with series of funnel-shaped pockets 12 which are open to the flow of gases but closed at the opposite end. The exhaust gases enter at 7 and are divided by conical members 4, 5 provided on the tube 1 and between the tubes 1 and 2. The tubes are closed at the ends by plates 6, 8, the inner tube 1 projecting through the plate 8, with an open end for the exit of the gases. The conical portions 13 of the funnels 12 may be formed with cylindrical extensions from their larger ends.
Patent GB-713515-A (GB)
Title: Improvements in the production of carboxylic acid esters
IPC: C07C51/12
Filed: 1952-09-12
Abstract: Carboxylic acid esters are produced by the interaction of aliphatic alcohols with carbon monoxide at elevated temperature and under superatmospheric pressure, in the presence of a catalyst consisting of a metallic salt of cobalt carbonyl hydride or iron carbonyl hydride, and a minor amount of free halogen or halogen compound.  The preferred temperature range is 140 DEG  to 200 DEG  C. and the preferred pressures are those exceeding 50 atmos.  Additional solvents, e.g. esters, ethers, hydrocarbons and acetals may be used. The preferred catalysts are the mercury and silver salts of cobalt carbonyl hydride.  In the examples: (a) methanol is reacted with carbon monoxide in the presence of mercury salt of cobalt carbonyl hydride, Hg[Co(CO)4]2 and iodine to give methyl acetate with small amounts of acetaldehyde and ethanol; (b) ethanol is reacted with carbon monoxide under similar conditions as in (a) to give ethyl propionate with a little propionic acid; (c) methanol is reacted with carbon monoxide in the presence of the silver salt of cobalt carbonyl hydride, Ag[Co(CO)4] and iodine to give methyl acetate, with some acetic acid and acetaldehyde.
Patent GB-659090-A (GB)
Title: Improvements in or relating to electric arc discharge devices
IPC: H01J13/50
Filed: 1948-09-01
Abstract: 659,090. Converting. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Sept. 1, 1948, No. 23009. Convention date, Oct. 23, 1947. [Class 38 (ii)] [Also in Group XL (a)] In an arc discharge device, an insulated conducting deionizing grid is arranged to screen the cathode, with which a make-alive electrode is in contact, and an auxiliary anode from the major part of the ionizable vapour filling. The devices may be used in a frequency-changer for supplying induction heaters of electric furnaces. The ignition electrodes 4, Fig. 2, are fed at the supply frequency with unidirectional impulses from the circuit 5, the archolding electrodes 6 are fed from the supply 7 so as to be operative over a period of 120 degrees, and the control grids 9, 10 are fed with the desired high-frequency potential either from the transformer 11 or from the output, which comprises the transformer 21 and a tuned circuit including the load 24.
Patent GB-445233-A (GB)
Title: Improvements in machines for making chocolate confectionery
IPC: A23G3/20
Filed: 1935-08-16
Abstract: 445,233. Coating and moulding confectionery. HAAF, F., 59, Augartenstrasse, Mannheim, Germany. Aug. 16, 1935, No. 23065. Convention date, Aug. 16, 1934. [Class 28 (i)] [See also Group V] A machine for making chocolate articles consists of a basic unit comprising a trough 3, Fig. 1, in which the chocolate or a filling therefor is heated, a rotary scoop drum 4 for delivering the material into a feeding member 12 and extensions 3<1> which serve as a support for auxiliary machine units fed with chocolate from member 12 for moulding, filling, coating, &c., each having its own conveying and delivery means. A stirring device 6 is included. The machine is operated from a motor 7 through pulleys 8, 11 and worm gear 9, 10. Auxiliary units provided include (1) a grid 13 having a heating element 14 on which moulds used in making hollow chocolate articles after filling from spout 12 may be placed until the chocolate has hardened sufficiently to be removed; (2) a device, Fig. 4, for making chocolate creams consisting of a frame 15 on which a conveyer chain 16 for carrying the moulds 21 is mounted on guide rollers 18. The moulds are filled by a channel 24 receiving chocolate from spout 12 and discharging it where required at both ends 22, 23. Stricklers 25, 26 determine the weight of the slabs. The mould is only partly filled at end 22 of channel 24, the cream slab being next added and the filling completed at end 23 ; (3) a device for coating confections with chocolate comprising a frame 27, Fig. 6, in which is mounted a travelling belt 28 and a heating chamber 31 having a fan 32 feeding hot air through a funnel 33 on to the articles which are coated with chocolate supplied through a funnel 34. To ensure the undersides of the articles being coated, a pivoted frame 35 can be brought up against an adjustable rod 36 so that the chocolate will be made to heap up from under the belt. The belt 28 may be heated by passing a heating medium through the hollow drum 29 which drives it.
Patent GB-407878-A (GB)
Title: Improvements in binding books
IPC: B42C5/04
Filed: 1933-08-18
Abstract: 407,878. Cutting edges of paper. GRAMMER, A. L., Meadowbrook, Pennsylvania, U.S.A. Aug. 18, 1933, No. 23096. [Class 31 (i).] A machine for roughening the backs of the leaves of books to be bound to provide minute parallel oblique valleys and interlocking teeth, comprises clamps for the leaves slidable along a guide, and adapted to pass between fixed guides 11, 12, past a rotary member 13 which is set at an angle of substantially 45‹ to the direction of travel of the leaves. The member 13 carries a series of cutters 14 which pass through a groove 16 provided in soft metal inserts in the guides 11, 12, and the latter hold the leaves together in such a manner that the cutters remove practically no material from the leaves, but slit, deform, crowd, plow, and turn the material of the edges of the leaves into the desired formation.
Patent GB-865066-A (GB)
Title: Inner sole for shoes of all types
IPC: A43B13/39
Filed: 1957-07-22
Abstract: 865,066. Shoes; insoles. STUBBE, F. July 22, 1957 [July 26, 1956; Dec. 7, 1956], No. 23174/57. Class 17(2) An insole for shoes having an upper surface conforming to the shape of the foot and attaching means affixed thereto at regions other than that part of the upper surface forming the inside bottom of the shoe is made of polyethylene. As shown an upper 3, Fig. 2, and a leather strip 7 attached to the outer sole 4 are stitched to a lip 6 of the insole 1. In a second embodiment on upper 3, Fig. 3, and an ornamental strip 9 are stitched to a flange 8 of the insole 1. In a third embodiment on upper 3, Fig. 4, and a covering strip 12 are stitched to a flange 10 of the insole 1. In a further embodiment, Fig. 1 (not shown), the insole has a layer of linen on its lower surface to which an upper and a sole are attached by adhesive. Any space between the sole and insole may be filled by a filler or ribs on the lower surface of the insole may be provided. In all the above embodiments the insole may, as well as conforming to the shape of the sole of the foot, have an up-standing rim round the edge to form a bed for the foot. The polyethylene may be given an odour of leather and oppanolmay be added to give increased flexibility.
Patent GB-1509817-A (GB)
Title: Pharmaceutical composition for controlling liver damage
IPC: A61K31/385
Filed: 1976-06-04
Abstract: 1509817 Compositions containing 1, 3-dithia compounds NIHON NOHYAKU CO Ltd 4 June 1976 [6 June 1975] 23178/76 Heading A5B [Also in Division C2] A pharmaceutical composition for controlling liver disease comprises an effective amount of a 1, 3-dithia compound of the general formula: wherein R<SP>1</SP> and R<SP>3</SP>, which may be the same or different, represent individually a C 1 -C 4  alkyl group, and R<SP>3</SP> represents H, an acetyl group or a propionyl group and a pharmaceutically acceptable diluent. The compositions may be used orally, parenterally or in the form of a suppository.
Patent GB-1026965-A (GB)
Title: Advanceable roof supports suitable for use in mines
Inventor: POTTS MICHAEL CHARLES
IPC: E21D23/04
Filed: 1963-06-11
Abstract: 1,026,965. Advancing mine roof supports. DOWTY MINING EQUIPMENT Ltd. June 8, 1964 [June 11, 1963; March 7, 1963], Nos. 23271/63 and 43962/63. Heading E1E. A mine roof support frame comprises four hydraulic props 3 loosely seated in two transverse floor beams 14 and in two longitudinal roof bars 11, the props being connected by resilient strips 6, 6, 8, 9 secured to a clamp 7 on the lower part 5 of each prop. Each prop is retained in its floor beam socket 14 by a chain 17, and in its roof bar socket 12 by a bolt 32 and rubber bush 33 which allows limited angular movement of the prop. The frame is advanced relatively to a conveyer 36 by two jacks 30 pivoted lugs 41 on the front or rear props, and is located laterally by co-operating guides 42, 43 on the frame and conveyer.
Patent GB-216420-A (GB)
Title: Method of forming marking elements such as pencil leads, crayons and like articles
IPC: C09D13/00
Filed: 1923-09-18
Abstract: In making marking-elements, such as pencil leads, crayons, &c one or more ingredients such as clay and graphite or carbon black are deflocculated before or after the ingredients are combined. Clay may be suspended in water and treated with a small proportion of caustic soda; similarly graphite may be treated with magnesium oleate, tannin, or casein dissolved in sodium phosphate.  The deflocculated clay and graphite are then mixed and the water removed by evaporation; or a flocculating-agent may be added and the water-removed by decantation or filtration; or the clay and graphite may be separately dewatered and then mixed.  In some cases one or more of the ingredients may be ground with a deflocculating-agent.