baber/WOPTO huggingface dataset:
Patent GB-927488-A (GB)
Title: Process for the production of polymeric hydroxycarboxylic acids
IPC: C08G2/00
Filed: 1959-07-02
Abstract: Polymeric hydroxycarboxylic acids are made by treating homo- or copolymers of acrolein with that amount of a solution of an alkali metal hydroxide and/or other strong inorganic base and/or organic base which is sufficient to bring about disproportionation and in which the molar ratio of base to acrolein polymer is at least 0,5:1 based on the amount of acrolein from which the polymer is derived, and, if necessary, the resulting carboxylic acid salt is treated with a strong acid.  Bases specified are sodium hydroxide, ammonia, trimethylamine and triethylamine.  As a copolymer of acrolein there is specified one with acrylonitrile.  The acrolein polymers may be pre-treated before the action of alkalies in order to convert them into more reactive form; such pretreatment may consist of conversion of the polymer into its sulphurous acid addition compound, or the conversion of the polymers to hydrated form by the action of water or dilute acids or bases.  The alcohol and carboxyl groups of the products may be esterified.
Patent GB-1305094-A (GB)
IPC: F16K27/10
Filed: 1970-05-12
Abstract: 1305094 Making valves, welding by fusion SIEPMANN-WERKE KG 12 May 1970 [6 June 1969] 22838/70 Headings B3A and B3R [Also in Division F2] A valve housing for a gate valve comprises two co-axial pipe connections 2 and 3 and a forged centre portion 1 having a lower part of rectangular cross-section, two walls 11 of which have apertures to receive the pipe connections, in which the apertures have conical surfaces 12 which mate with coned portions 6 having conical surfaces 6<SP>1</SP> on each pipe connection and are welded together by an interior weld. The welding is preferably electron beam welding in which the beam 14 is passed around a core of revolution through one pipe connection to weld the other to the centre portion 1. The angle α of the beam with the axis of the pipe connections is preferably not more than 45 degrees, 10 to 15 degrees being preferred. Valve seats 8 are screwed into the pipe connections either before or after assembly. Specification 1,305,095 is referred to.
Patent GB-1042974-A (GB)
Title: Improvements in panel ceiling structures and supporting devices therefor
IPC: E04B9/20
Filed: 1963-06-10
Abstract: 1,042,974. Suspended ceilings. O. S. HALBOSTAD and G. ARNESEN. June 10, 1963 [June 8, 1962], No. 23064/63. Heading E1V. In a supporting device (Figs. 1 and 3) for use in panel ceiling structures wherein panels 32 are carried by girders 9, a fixing bolt 2 therefor is secured to the permanent overhead structure 1 of a building on which a bracket member 4 is mounted, having a horizontal surface extending laterally thereof to support a girder 9 in a position laterally offset to the bolt 2, and retained by a bolt 10 in slots 5, the member 4 being rotatable about the bolts longitudinal axis to be adjustable axially thereof so that, in use, it may be horizontally and vertically adjusted relative to the bolt 2. The panels 32 are carried by parallel rails 17 supported by transverse girders 9 supported between their ends as above. The rails 17 are supported by angle-shaped clips 18 supported from the girders 9, and are connected to the clips 18 by screws 25, 26 (to allow for vertical adjustment), each engaging a bolt 24 with C-shaped holder 27 at the lower end, to receive the head portion of a rail 17, and itself received in a slotted portion 22 of a clip 18. The bolt 10 is at a variable distance from the axis of the bolt 2. In the form shown in Fig. 6 the member 4 has an extension beyond the axis of the bolt 2 carrying vertically adjustable means 40 to abut the structure 1 and comprises a hub 36 mounted on the bolt 2 with extending arms 37 to support a girder 9. The arms 37 have registering slots to receive bolts 10<SP>1</SP> for locating the girder 9. The ends of the rails 17 are supported, by projecting rods, on bracketshaped rails attached to the walls, and the girders 9 are so attached by a bent plate having bolt-and-slot connection to a girder.
Patent GB-823790-A (GB)
Title: Method and apparatus for stacking tiles
IPC: B65G57/081
Filed: 1956-07-26
Abstract: 823,790. Stacking tiles. GOODYEAR TIRE & RUBBER CO. July 26, 1956 [March 14, 1956], No. 23109/56. Class 94(1). [Also in Group XXX] Apparatus for stacking tiles having different top and bottom faces such that each pair of succeeding tiles A, B is stacked with like faces in contact consists of a conveyer belt 1 on which the tiles follow one another, a pressure roll 5 having a resilient cover at the delivery end of the belt, and a trough-shaped member positioned transversely below the delivery end and adapted to receive the first tile A of a pair in downwardly and forwardly sloping position, the arrangement being such that the second tile B engages the first tile A and tilts it over into inverted position, the two tiles then passing to a stacking receptacle 9 in which they form a superposed pair having like faces in contact. In the form shown in Fig. 2, the trough-shaped member has a bent over portion 10 at its leading edge to support each tile as it leaves the roll 5, a side wall comprising two differently sloped portions 11, 13 joined by an arcuate portion to further guide the tiles, a base 14 to support the forward edge of each tile A, and a side wall 15 with which is associated a bar 19 about which each tile A is adapted to pivot during tilting by a tile B. The wall 16 is joined by a sloping surface 17 to the bin 9. In the modification of Fig. 6 the bar 19 is omitted, the trough-shaped member having bent-over portions 21 and 22 for guiding the tiles.
Patent GB-406281-A (GB)
Title: Process for the manufacture of dyestuff intermediate
Filed: 1932-08-17
Abstract: 2 : 4-dinitrophenylthioglycollic acid, which may be obtained by the action of a halogenoacetic acid on dinitrothiophenol, is reduced by means of alkaline sulphide or other suitable reducing agent to give 2-nitro-4-aminophenylthioglycollic acid.  According to examples, 2 : 4-dinitrophenylthioglycollic acid, obtained by the action of monochloracetic acid on dinitrothiophenol, is reduced with alkaline sodium sulphide, sodium hydrosulphide, or sodium sulphide and sulphur, or alkaline sulphide and magnesium sulphate.
Patent GB-1254774-A (GB)
Title: Comparison amplifier
Inventor: NAKAYA NAOHISA
IPC: H03K5/04
Filed: 1969-05-06
Abstract: 1,254,774. Transistor circuits. IWATSU ELECTRIC CO. Ltd. 6 May, 1969 [28 May, 1968], No. 23129/69. Heading H3T.  In a comparison amplifier in which a transistor 16 conducts when the voltage on its control electrode attains a predetermined value relative to signal ground established by a comparison voltage source 17 which is connected to another electrode, the capacitance between the control electrode and signal ground is reduced by connecting a diode 30 between the said other electrode and signal ground, the capacitance of the diode being small compared with that between the control and said other electrodes of the transistor. In the embodiment the comparison voltage source 17 itself appears as signal ground, and the collector of the transistor is supplied via a tunnel diode 15. When a switch 11 is opened the voltage on a capacitor 13, and hence on the control electrode, rises as it is charged from a constant current source 12 until the transistor conducts, whereupon the tunnel diode 15 changes from its low voltage to its high voltage condition so that a pulse appears on an output terminal 18. This pulse is arranged to reclose the switch 11. The object of the invention (the diode 30) is to reduce distortion of the linear charging of capacitor 13 and so reduce the operating delay caused by the distortion. The diode 30 may alternatively be of Zener type and the transistor may be a bipolar, planar, transistor or a field effect transistor.
Patent GB-616841-A (GB)
Title: Apparatus for controlling the tension of a thread or the like during unwinding from a package
IPC: B65H59/04
Filed: 1946-08-03
Abstract: 616,841. Unwinding thread packages. DUNLOP RUBBER CO., Ltd., PICKUP, L. F., and JONES, W. A. H. Aug. 3, 1946. No. 23185. [Classes 120(ii) and 120(iii)] Apparatus for controlling the tension of a thread during unwinding from a package comprises e package support hav. ing a vertical spindle to carry the package a liquidoperatec brake device including a braking member rotatable with said spindle and extending from the spindle into a chamber adapted to contain braking liquid, and means for automatically decreasing the surface area of the said member in the braking liquid in the said chamber as the package empties. In the arrangement shown in Fig. I, suitable for incorporation in a twisting machine, braking fluid is contained in a chamber 1, from the cover of which a pillar 2 extends. A bobbin of thread to be unwound is supported on a skirt 8 depending from a collar 6 secured to the top of a spindle 3 mounted for rotation within, and longitudinal movement relative to, pillar 2. Cylindrical vanes 18 project from a disc 17 attached to spindle 3 and fit between stationary vanes 19. A short pillar 21 forms a bearing for the end of spindle 3 when in its lowest position. As the thread is unwound and the weight of the package decreases, the spindle rises under the action of a spring 11, to raise the vanes 18 out of the braking liquid and reduce the viscous drag. The drag is arranged to decrease at such a rate that the thread tension remains substantially constant. In a twisting or doubling machine, Fig. V, of the type described in Specification 338,570, [Class 120(ii)], the bobbin of thread is carried by a hollow spindle surrounding a stationary central pillar 56 and carrying a disc 67 which has a curved lower surface. The weight of a full bobbin depresses the spindle against the action of a spring so that disc 67 is immersed in braking fluid in a chamber 52. As the bobbin empties, the spindle rises and disc 67 is gradually withdrawn from the braking fluid, thereby reducing the viscous drag so that the thread tension remains substantially constant. Pillar 56 which carries chamber 52 is fixed to an arm 46 projecting from a pendulum member 45. In the arrangement shown in Fig. III, suitable for heavy packages, the diminution in the depth to which the vanes are immersed in the braking liquid is effected by withdrawing liquid from the braking chamber 23 by raising a plunger 31 in an auxiliary chamber 27 communicating with chamber 23. Plunger 31 is raised by the action of a spring 40, movement being controlled through a bell-crank 33, 34, 35 linked to a roller 39 bearing on the thread package. This latter arrangement may be used in a card-stretching process in which the cord is unwound from a bobbin under tension and treated with steam while in the stretched condition. Specification 361,373 also is referred to.
Patent GB-734651-A (GB)
Title: Improvements in or relating to tubular electrical condensers
IPC: H01G2/24
Filed: 1953-08-24
Abstract: 734,651. Electrical capacitors. SIEMENS & HALSKE AKT.-GES. Aug. 24, 1953 [Sept. 19, 1952], No. 23228/53. Addition to 733,532. Class 37. In a tubular capacitor of the type described in the parent Specification, having a transparent casing through which the indication of type applied to the outer surface of the outer electrode is visible, the outer electrode is of metal, preferably aluminium, partly or wholly oxidized on its outer surface, which may be tinted by impregnation with colouring materials. The outer electrode may be cut from a metallic foil of the same breadth as the electrode, the foil being oxidized, coloured, printed, and having contact tabs welded to'it in a continuous process before cutting.
Patent GB-170558-A (GB)
Title: Improvements in condensate ejectors
IPC: F04F5/20
Filed: 1921-09-01
Abstract: 170,558. Metropolitan - Vickers Electrical Co., Ltd., (Assignees of Schmidt, H. F.). Oct. 22, 1920. Conveyer - apparatus, ejector.-Relates to steam - actuated ejectors for withdrawing condensate from the hot-well of a condenser and discharging at a higher pressure to a feedwater heater or ether receptacle, and consists in overcoming the difficulty of starting, when there is a considerable vacuum in the condenser and the condensate is at high temperature, by conducting the overflow to an auxiliary steam-operated ejector which will return the overflow to the condenser. Condensate from the hotwell 11 of the condenser 10 is delivered by an ejector 27, preferably operated by exhaust steam from non-condensing auxiliaries, to a discharge conduit 17 with non-return valve 18. From the usual overflow chamber 19 between the combining and delivery cones 15, 16 of the diffuser, liquid is withdrawn by means of the auxiliary ejector 22. supplied with exhaust steam, and is delivered through a conduit 26 to the top of the condenser.
Patent GB-1343374-A (GB)
Title: Pharmaceutical compositions and process for their production
IPC: A61K31/21
Filed: 1972-05-17
Abstract: 1343374 Nitroglycerine compositions PARKE DAVIS & CO 17 May 1972 [1 June 1971] 23274/72 Heading A5B Storage stable pharmaceutical compositions comprise (a) one part by weight of the coronary dilator nitroglycerine; (b) from 0.5 to 0.9 part by weight of a non-volatile, water-miscible, pharmaceutically-acceptable solvent for nitroglycerine having a boiling point of at least 200C; and (c) from 20 to 200 parts by weight of a solid, water-soluble pharmaceutically-acceptable carrier. Solvent (b) may be a polyethylene glycol, tetramethylene glycol or pentamethylene glycol and the carrier (c) is preferably a sugar or a sugar derivative such as lactose, glucose, sorbitol, sucrose or mannitol preferably a mixture of lactose and sucrose. Sublingual tablets of the above composition are prepared by including sufficient volatile solvent having a boiling point of up to 100C e.g. aqueous ethanol or water to wet the mixture, forming the wetted mixture into tablets, and drying the tablets by evaporating the volatile solvent therefrom.
Patent GB-895899-A (GB)
Title: Machine for stretching metal articles
Inventor: WISLOUCH ZYGMUNT
IPC: B21D3/12
Filed: 1960-07-04
Abstract: 895,899. Stretching. LOEWY ENGINEERING CO. Ltd. July 4, 1960, No. 23316/60. Class 83 (4). A machine for stretching profiled metal articles, having sets of clamping jaws and gripperheads for housing each set of jaws, has at least one clamping jaw angularly adjustable to the other jaws of its set by being mounted in the gripperhead so as to be rotatable about a longitudinal axis independently of the other jaws. A profiled metal article to be stretched is held at its ends in gripperheads 12, 14 connected by tie rods 16 to crossheads 18. The head 14 is adjustable along a main frame 10 by an electric motor 30 and is locked in position by a peg engaging a hole in the frame 10, the peg being lifted and lowered by a chain 34 attached to a piston of an air cylinder 35. The head 12 is moved longitudinally to effect stretching by a hollow hydraulic ram 20 and is returned by cylinder means 24. Each jaw 40 in a gripperhead is guided along an inclined surface of a block 44 in the head and is moved to close on to the article to be stretched by a piston-rod 60 in an air cylinder 56 carried by the block 44. The block 44 is adjustable angularly along an arcuate guide 68 in the head.
Patent GB-337769-A (GB)
Title: Improvements in or relating to the electrical transmission and reception of pictures or other representations
IPC: H04N1/024
Filed: 1929-07-30
Abstract: 337,769. Fulton, O., and Chaplin, H. A. July 30, 1929. Copying - telegraphs. -Apparatus for the transmission or reception of pictures comprises a plane picturecarrier and two picture-traversing devices reciprocated across, and alternately operative upon, the picture, or carrier which is fed transversely of the paths of reciprocation. The traversing devices are arranged to move in opposite directions, and to be operative in one direction only. The picture traversing devices 20, 21 mounted on screwthreaded spindles 22, 23 are reciprocated across a plane picturecarrier 10 moved in a transverse direction on rods. 13, 13 by a knifeedge member 16 engaging a screw-threaded spindle 17 driven by gears 18 from a motorshaft 19. The spindles 22, 23 are mounted in a carriage consisting of end bearing members 24, 25 connected by rods 26, 27, 28. The carriage is supported for rocking motion on pins 29 carried by supporting pillars 30. Gear wheels 31, 32 fixed to the spindles 22, 23 are always in engagement with each other, and are-alternately driven by a gear wheel 131 of a train 131, 133 driven from the motor shaft 19. At the commencement of a line or train of signals, a synchronizing signal energizes an electromagnet 46 actuating through links 45, 44, a slider 43 which rocks the carriage so that the gear wheel 32 of the spindle 23 is brought into engagement with the gear-wheel 131 so that the device 21 is moved across the carrier with its stylus in engagement, whilst the device 20, rocked out of operation, moves idly across the carrier in the opposite direction. The device 21 at the commencement of the next picture train is rocked by a synchronizing signal so that the gear wheel 31 of the device 20 and spindle 22 engages the wheel 131. The device 20 now moves across the paper with its stylus in operation, whilst the device 21 moves idly in the opposite direction. The transmitting traversing devices may embody light-sensitive devices co-operating with a source of light, and the reproducing devices may carry neon lamps.
Patent GB-900126-A (GB)
Title: Process for refining of vegetable protein
IPC: A23J1/14
Filed: 1960-07-04
Abstract: Vegetable protein is refined from vegetable seeds from which at least some of the oil has been removed by treating the seeds with water in the presence of a cation exchange resin to extract the impurities therefrom.  The protein residue may be further treated with a solution of an alkali to obtain a purified protein solution, the pH of the solution adjusted to that of the isoelectric point of the protein by addition of a neutralizing agent to precipitate the protein which is then separated from the solution.  Examples of seeds are soybeans, peanuts, cotton seeds, rape seeds, sesame seeds, kapok seeds and safflower seeds.  Oil may be removed from the seeds by compressor or by extraction with organic solvents.  The alkaline solution of the protein may be treated with a cation exchange resin to neutralize the liquid to pH 7.0 prior to adjusting to the isoelectric point by addition of an acid e.g. hydrochloric, sulphuric, citric or acetic acid. Alternatively, after neutralization, the solution may be spray dried.  Impurities are defined as being extractable substances other than protein and includes carbohydrates and ash (including sodium and potassium salts).
Patent GB-384357-A (GB)
Title: Improvements in thermostatically controlled electric switches
IPC: H01H37/56
Filed: 1931-08-19
Abstract: 384,357. Thermal switches. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Hart Manufacturing Co. ; Bartholomew Avenue, Hartford, Connecticut, U.S.A.) Aug. 19, 1931, No. 23346. [Class 38 (v).] A- thermal switch, suitable for controlling the temperature of an electric oven, consists of a bimetallic helix, (not shown) which is adapted, on rise of temperature, to rotate (in an anticlockwise direction) a spindle 15 carrying a cam 39 which coacts with a roller 53 on a lever 50 causing the lever to tilt and operate a mercury switch 25 pivoted at 32. The lever 50 is pivoted at 51 to a setting lever 45 mounted to rotate concentrically with the spindle 15 and having a pointer 46 co-operating with a scale 47 for setting the temperature at which the switch operates. A pointer 60 carried by the spindle 15 indicates the temperature of the oven.
Patent GB-480699-A (GB)
Title: Press rolls in paper mills
IPC: D21F3/08
Filed: 1936-08-25
Abstract: 480,699. Press rollers of paper-making machines. AMBBIDGE, D. W. Aug. 25, 1936, No. 23368. [Classes 42 (ii) and 96] The press roller 16 of a paper-making machine comprises a solid core 33 e.g. of steel, granite &c. carrying an inflated bag 32 within the annular air-space of which are resilient circular rings 37 of sponge rubber &c. allowing passago of air through them, and an outer rubber cover 38 clamped at its ends, as by rings 41. The bag 32 communicates with a compressed air supply through a passage 27, 28 in the core 33, and a universal connection. The roller is adjustably loaded and its working surface roughened.
Patent GB-840653-A (GB)
Title: Improvements relating to transmission arrangements for electro-magnetic waves
IPC: H01P1/17
Filed: 1956-07-30
Abstract: 840,653. Waveguides. TELEFUNKEN G. m. b. H. July 30, 1956 [July 30, 1955], No. 23395/56. Class 40 (8). A transmission arrangement comprises means for transforming a plane-polarized wave into a circularly-polarized wave and means in the path of the wave for absorbing an undesired reflected component. As shown, an input wave polarized at right angles to the direction indicated by vector II is converted to a circularlypolarized wave by means of a longitudinal fin S of dielectric material arranged in known fashion to produce a 90 degree phase difference between equal components of the planepolarized wave resolved in the plane of the fin and at right angles thereto. Any portion of the circularly-polarized wave reflected at a point beyond the fin returns in the form of a wave circularly-polarized in a sense opposite to the original wave. The reflected portion is converted by the fin S to a wave plane-polarized in a direction at right-angles to the original plane-polarized wave, i.e. in the direction II. A plate A of attenuating material is arranged parallel to the plane of polarization of the reflected component so that this component is absorbed and the forward-going wave is substantially unaffected. Other forms of circular polarizer, i.e. spaced conductive rods, may be used.
Patent GB-337074-A (GB)
Title: Improved method of, and apparatus for, moulding artificial stone and imparting a finished surface thereto
IPC: B28B11/08
Filed: 1929-07-30
Abstract: 337,074. Walker, F. T. July 30, 1929. Endless-chain machines; templets. - Moulds filled with concrete or like aggregate are placed on the conveyer belt 3 and run beneath a revolving roller 27 acting as a strickle and thence under a driven pressure and surfacing roller 15, the lower portion of the periphery of which moves in the opposite direction to the belt. The roller 15 is driven by a belt 21 furnished with a counterweighted jockey-pulley 24, and is adjustable in height by screw-and-bevel gear 17 - - - 20.