baber/WOPTO huggingface dataset:
Patent GB-626640-A (GB)
Title: Hydraulic device for applying gradual tension to products on a drawing machine
IPC: F16F9/48
Filed: 1946-05-16
Abstract: 626,640. Drawing. COMPAGNIE GENERALE DU DURALUMIN & DU CUIVRE. May 16, 1946, No. 14866. Convention date, May 19, 1945. [Class 83 (iv)] [Also in Group XXXII] A chain-operated draw bench has a shock absorbing device comprising a piston mounted on an axle of the carriage and operating within a cylinder disposed on the carriage and forming an extension of the hook, the cylinder containing fluid which is obliged to pass through a longitudinal channel slowly obturated by a conical rod. A piston-rod 7 secured to the carriage axle 5 carries at its end a piston 8 operating in a cylinder 3 secured to the hook 1. When the hook engages the chain, the cylinder is pulled to the left as seen in the Figure, forcing liquid from the end chamber 11 through a central bore 7a in the rod and piston 7, 8 and through radial bores 13a in the rod into a chamber 13, another piston 12 being thereby forced back against the action of a spring 15. As the end of the cylinder moves towards the piston 8, a conical rod 3a carried by the cylinder enters and progressively obturates the central bore 7a. After the carriage has attained the speed of the chain, the parts of the device are returned to their starting positions under the action of the spring 15.
Patent GB-517410-A (GB)
Title: A new or improved cooler for oil and other liquids
IPC: B64D33/10
Filed: 1939-02-15
Abstract: 517,410. Radiators for cooling liquids. BELAIEFF, J. F., DELANEY, C. T., and GALLAY, Ltd. Feb. 15, 1939, No. 4936. [Class 64 (iii)] A cooler for oil and other liquids has radiator elements z consisting of horizontal tubes connected to front and rear headers and arranged in V-form, and of comparatively large diameter horizontal tubes h 'connected to front and rear chambers b, c arranged between the radiator elements. Oil flows from the inlet tank b through the tubes h to the tank c thence into a header d and through the lower radiator element. It then passes through an intermediate tank e to the upper radiator element. When the oil is cold, the rise in pressure due to the viscosity of the oil, opens a valve i to allow the oil to flow directly from the tank c to the outlet header. Specification 467,420 is referred to.
Patent GB-327809-A (GB)
Title: Improvements in or relating to railway switch mechanism
IPC: B61L5/02
Filed: 1929-02-14
Abstract: 327,809. Williams, L. Wynn-. Feb. 14, 1929. Point-tongues, mounting of.-Rollers 4 carried by the tongues 2 engage a beam 3 adjustably and resiliently supported by the stock-rails 1. The rollers 4 are carried by brackets 13 passing around or through the tongue flange 2a, a bent plate 15 preventing rotation of the bracket. The beam 3 is formed at its ends with eyes resting on the heads 9 of bolts 6 carried by brackets 7 secured to the rails 1, springs 11 being placed between the brackets 7 and nuts 10. The rollers may engage the doubled ends of the beam 3 or hardened members carried thereby. For track-circuiting, Fig. 9, the beam 3 is provided with a joint insulated by fibre packing 20 and bushings for the bolts 19.
Patent GB-1192652-A (GB)
Title: Improvements in or relating to Detectors for Penetrating Radiation
Inventor: BROWNING GEORGE WILLIAM
IPC: H01J47/02
Filed: 1968-01-31
Abstract: 1,192,652. Ionization chambers. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 30 April, 1969 [31 Jan., 1968], No. 4981/68. Heading H1D. An ionization chamber dismountable for easy cleaning consists of a central wire cathode 3 spring-mounted on supports 8, 9, gripped inside an anode casing 1 consisting of two semi-cylindrical parts held together by being slid into an insulating block 5. A window 13 is provided in the block and inlet and outlet ports 14, 15, 16 are provided.
Patent GB-640896-A (GB)
Title: Improvements in or relating to electron discharge apparatus adapted for frequency multiplication
IPC: H01J25/12
Filed: 1942-10-09
Abstract: 640,896. Adjusting radio apparatus. SPERRY CORPORATION. Oct. 9, 1942, No. 5074/43. Convention date, Oct. 23, 1941. Divided out of 640,895, [Group XL (a)] [Class 40 (v)] [Also in Group XL (a)] In a frequency-multiplier having resonators of different frequencies, these resonators are gang-tuned, by a mechanism which simultaneously moves the movable portions of the resonators at the necessary different rates. In one form, the buncher resonator 3 and harmonic catcher resonator 11 are connected by flexible walls to a drift tube 9 carrying a base - plate 18. Fixed struts 29 extend between the baseplate and collars 25, 31 secured to the rigid walls of the resonators, while movable struts 23, 25 engage wedge-shaped portions 27, 41 of a member which is movable transversely by micrometer screw 39. The angles of the wedges are selected so that their common transverse movement causes the strut 25 to move slower than the strut 23 by a factor corresponding to the harmonic relation, the lever arm lengths about the fixed struts being the same. All the struts are initially adjustable by screws 37. In another form, a single wedge member 111, Fig. 3, is used, but the lever arm lengths of movable struts 104, 107 about the fixed struts 103, 106 are made different in the desired ratio. Specification 640,898 is referred to.
Patent GB-355202-A (GB)
IPC: G11B7/00
Filed: 1930-02-15
Abstract: 355,202. Recording and reproducing sound. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Elektricitõts-Ges.; 2, Friedrich Karl-Ufer, Berlin.) Feb. 15, 1930, No. 5137. Convention date, Feb. 15, 1929. Void [Published under Sect. 91 of the Acts]. Drawings to Specification. [Class 40 (ii).] Relates to processes for photographically recording sound on films, and for reproducing the recorded sound. According to the invention, during the recording, passages of varying actual intensity are recorded at an approximately common level, and a compensating adjustment is made, either during the printing process or in reproduction, to bring the relative intensities back to their correct values. In recording, the disproportionate emphasizing of the weaker sounds may be effected by suitably adjusting the position of the microphone with respect to the source of sound, or by the use of a voltage control device in the electrical recording apparatus. Alternatively, separate microphones with appropriate voltage control devices, may be switched in and out as required, for recording loud and soft passages. It is further stated that " a presentation to be recorded may be split up into one or more series of sound passages, and each of these exposed and recorded separately. A series of sound passages may then be subjected to a correction, without the whole exposure having to be repeated. These different negative films can then be printed on to a common positive film, so that several records extend on the latter parallel to one another. Reproduction would then be effected from the several records simultaneously." Such records of independent sound passages, intended for simultaneous reproduction, may be recorded at different times, and the different films may be appropriately displaced relatively to each other during the recording or printing processes. Volume control during reproduction of sound from the different parts of a record or from the separate records may be effected by various well-known electrical means, or by controlling the intensity of the light or the width of the beam affecting the photoelectric cells. A special reproducing arrangement may be provided for each record film, or the output from different photoelectric cells may be fed to a common amplifier. The correct sound intensities for the individual records may be produced in the printing process. This may be done by using for each record a special light source, or by using a single light source with an optical dividing device which allots a special beam to each record. Reproduction of sound from each film may be listened to during the printing, to facilitate proper control.
Patent GB-316514-A (GB)
Title: Improvements in and relating to presses for sheet metal
IPC: B21D24/06
Filed: 1929-02-15
Abstract: 316,514. Rhodes, C. J. Feb, 15, 1929. Cupping.-A press for drawing sheet metal has the drawring 4 supported by pins 5 and a table 61 which moves under the resistance of a buffer 13 applied through bell-cranks 9 linked to the table at 8. The linkage is designed to compensate the varying resistance of the buffer by the varying leverage during drawing, so that a substantial constant pressure is applied to the draw-ring. The bell crank may be arranged to apply pressure to the lower end of the buffer.
Patent GB-227660-A (GB)
Title: A process for the separation of lead and zinc in roasted compound ores
Filed: 1924-02-28
Abstract: Roasted lead-zinc ores are leached with a concentrated solution of an alkaline earth (including magnesium) chloride preferably containing over 200 grams of chlorine per litre without the addition of acid. This dissolves the lead but very little of the zinc.  When magnesium chloride is employed it is preferable to use a solution containing more than 280 grams of chlorine per litre, as then most of the magnesium sulphate formed remains with the residue.  The residue may be freed from chlorine by treatment with water and lime and then washing, and forms a good metallurgical zinc product.  The silver may be dissolved with the lead by adding an oxidizing agent such as bromine, bleaching-powder, peroxides, and persalts such as persulphates and permanganates.  The silver may be precipitated with zinc dust or iron powder.  The lead chloride may be recovered by cooling the solution, or the lead may be obtained in the metallic state by electrolysis or by cementation.  When too much zinc accumulates in the solution it is precipitated by means of lime.
Patent GB-1424236-A (GB)
Title: Electrophotography
IPC: A61B6/00
Filed: 1973-02-01
Abstract: 1424236 Electro-photography SIEMENS AG 1 Feb 1973 [7 Feb 1972] 5208/73 Heading G2H A charge image of an original 22 is produced on an insulative surface 6 supported on a layer 5 of semi-conductor material by ionizing a gas contained within a chamber bounded by the surface 6, establishing within the chamber an electric field having an alternating component directed perpendicularly of the surface and causing energization of a penetrating radiation source 1 (e.g. an X-ray tube) only during alternate half-cycles of the alternating component. The gas e.g. air or argon may be ionized by corona discharge from grids 8 and 9 powered from a transformer 14. The layer 5 is sandwiched between the insulating surface 6 and a wall 4 (e.g. of aluminium or magnesium). The field is produced between a further grid 7 and the wall 4. The X-ray tube is powered from the same supply 13 as the field producing means by way of a transformer 15. In an alternative the gas is ionized by a radioactive isotope e.g. tritium. The semi-conductor may be Se, Se compounds or alloys, AsS3 As Se 3 , HgI 2  or Co O 2  The surface 6 may be mica, Si O 2  or an organic material.
Patent GB-1243162-A (GB)
Title: Installation for electro-slag remelting of metals in particular of steels
IPC: C21C5/52
Filed: 1970-02-03
Abstract: 1,243,162. Electro-slag refining supply systems. BOHLER & CO. A.G. GEB. 3 Feb., 1970 [3 Feb., 1969], No. 5224/70. Heading H2H. The electrodes 9, 9<SP>1</SP> of an electro-slag remelting apparatus are fed from a three phase A.C. supply RST by way of two parallel circuits comprising ON-OFF switches 2, 2<SP>1</SP>, step-down transformers 3, 31 and thyristor devices 6,6<SP>1</SP>, each of the thyristor devices being arranged to provide a single phase alternating voltage output having a square waveform, the outputs being connected one to each of the electrodes 9, 9<SP>1</SP> and commonly to the mould 14 of the remelting apparatus. The output voltages U 1 , U 2  of the thyristor devices 6, 6<SP>1</SP> are adjustably controllable by means of a device 7 infinitely between an in-phase relationship and an antiphase relationship. When the voltages U 1 , U 2  are in phase the voltage U E  between the electrodes 9, 9<SP>1</SP> is zero, the current J E  between the electrodes is zero and the current J B  between the electrodes and the base 14 is a maximum. Conversely when the voltages U 1 , U 2  are antiphase, the voltage U E  between the electrodes is a maximum, the current J E  between the electrodes is a maximum and the current between the electrodes and the base is zero. Values of voltage and current between these figures are obtained by phase shifting the voltage U 1  relatively to the voltage U 2 . The electrodes may each comprise a group of electrodes in parallel and, if desired, more than two groups of electrodes may be provided which are energized in a sequence so as to produce a rotary field which causes a stirring effect in the slag and liquid metal. Furthermore the energization may be reversed to reverse the stirring effect.
Patent GB-1178061-A (GB)
Title: Cigarette or Cigar Filter
Inventor: STREULE JOSEF
IPC: A24D3/04
Filed: 1967-02-03
Abstract: 1,178,061. Tobacco-smoke filters; cigar and cigarette holders. J. STREULE and B. BROT. 3 Feb., 1967, No. 5250/67. Headings A2C and A2M. A filter for cigarettes and cigars comprises a hollow cylindrical shell 1 having at one end a bottom disc 2, a cylindrical exhaust tube 5 secured in a central outlet opening of the disc 2, a cylindrical median deviation tube 6 and a top disc 3 closing the tube 6 and integral therewith, the shell 1 having at its outer end a plug portion 1<1> to receive the end of a cigarette 4 or a cigar, and the top disc 3 being axially spaced from the plug portion 1<1>, the disc 3 and the tube 6 constituting an exchangeable part, and the tube 6 being made of a material capable of being charged with static electricity. The disc 3 forms a guide flange 3<1> provided with recesses 7 to permit the passage of smoke, and the lower edge of the tube 6 is similarly provided with recesses 7<1> to serve as smoke outlets. A variant of the tube 6, Fig. 6, includes guide ribs 10. The filter is made of a thermoplastic material. Charging of at least the tube 6 with static electricity causes precipitation of solid smoke constituents from the smoke stream and their retention on the interior walls of the filter.
Patent GB-787562-A (GB)
Title: Improvements in or relating to the manufacture of filamentary material by wet spinning
Inventor: BROWN RUSSELL JACQUES
IPC: D01D5/06
Filed: 1954-02-23
Abstract: <PICT:0787562/IV (a)/1> An apparatus for use in the manufacture of artificial filaments by wet-spinning comprises a closed vertical outer tube, a coaxial narrower inner tube opening into the outer tube at a level substantially above the lower end of the outer tube and extending upwards beyond the upper end thereof, an upwardly facing spinning jet in the outer tube below and coaxial with the inner tube, means for feeding a spinning solution to the spinning jet, means for introducing coagulant into the upper end of the outer tube, and means for collecting coagulant from the upper end of the jinner tube.  As shown, the outer tube 1 is filled with coagulant, with air-vent 4 open, by means of the inlet 3 until the inner tube 5 is filled to the level 2.  The vent 4 is then closed, the coagulant solution is fed in, preferably so that the rate of flow in tube 1 is less than 1 metre/minute, and the spinning solution is injected from the jet 11. The filaments so produced are carried up the inner tube 5 by the coagulant and issue from the orifice 6, whence they pass to a godet (not shown) and are stretched.  The excess coagulant collects in the gutter 7 and is run off for recovery through duct 8.  Vertical fins 15 keep the inner tube accurately centred and, together with the gauze 16 and the concave reflector 12, help to prevent turbulent flow of the coagulant solution.  The diameter of the outer tube 1 should be at least twice, and preferably 2.5-3.0 times the diameter of the inner tube 5.  The apparatus may be used for spinning acetone solutions of cellulose acetate, using diethylene glycol diacetate or aqueous acetone as coagulant, acetic acid solutions of cellulose acetate using aqueous acetic acid containing alkali metal acetates or other salts as coagulant, other cellulose esters and ethers, viscose, polyvinyl alcohol, copolymers of vinyl acetate and vinyl chloride, polyacrylonitrile, and copolymers of acrylonitrile with other vinyl or vinylidene compounds. Specifications 720,187, 787,556, 787,557, 787,558, 787,559, 787,560, 787,561, and 787,563 are referred to.
Patent GB-520216-A (GB)
Title: A new or improved device for use in suspending and manipulating window or like curtains
IPC: A47H5/032
Filed: 1939-02-17
Abstract: 520,216. Suspending curtains. WOODWARD, A. L. Feb. 17, 1939, No. 5364. [Class 52 (v)] Curtains are suspended, by hooks r, from a wire i each end of which is anchored to a screwed end support a so that the wire is tensioned when the supports are screwed into the window frame &c. The supports carry pulleys f for a curtain operating cord q. A valance wire l may be provided.
Patent GB-333869-A (GB)
Title: Improvements in electrical apparatus for heating liquids
IPC: F24H1/22
Filed: 1929-02-19
Abstract: 333,869. Foy, F. Feb. 19, 1929. Water supply and delivery. -In an electrical apparatus for heating water, dye liquors, or other liquids the greater portion of the siphon discharge tube 4 is surrounded by an air jacket 5 to prevent cooling of the liquid during discharge. A tube 12 fitted to the jacket allows any steam generated in the heater to pass to the outlet pipe 10 by way of the jacket and an aperture 11 in the siphon discharge tube.
Patent GB-496739-A (GB)
Title: Improvements in or relating to roof or floor constructions
IPC: E04C2/42
Filed: 1937-02-24
Abstract: 496,739. Structural metal joints. ROTENBURGER METALLWERKE R. STIERLEN. Feb. 24, 1937, No. 5601. Void. Convention date, Feb. 18. [Class 20 (ii)] The Specification describes various means for joining the metal girders of a floor or roof structure as set forth below: (1) Two aligned I-section girders, which may be rolled sections or built up by welding the flanges 2, 3 to the web 1 as shown in Fig. 3, are connected together by welding a web plate 4 to the projecting web 1 of each girder and at right angles thereto, and welding a flange 5 to the top of the web 4 ; the ends of the two girders are brought together so that the web plates 4 of the girders are in contact, and a welded connection is then made at the places 13, 14. Instead of the flange 5 being welded to the two girders, cover-plates 17 may be fitted over the upper and lower flanges of the girders and welded at their ends to these flanges. Triangular bracket members may be welded in the corners between the upper and lower flanges of the girders and the flanges 5. (2) The joint between two I-section girders which cross each other at right-angles is made by cutting from the upper half of one girder and the lower half of the crossing girder a portion which is shaped as shown at 24, Fig. 5, to allow for the desired interfit. (3) The joint shown in Figs. 6 and 7 between two crossing I-girders 22, 23 is formed by cutting slots of triangular form on the opposite sides of the upper and lower flanges of both girders at the crossing point ; one girder is provided with a slot in the upper half of its web and the other girder has a corresponding slot in the lower half of its web. The shape and disposition of the triangular slots in the flanges of the girders may be varied to permit the girders to cross at any desired angle to each other. (4) The joint member shown in Figs. 9 and 10 comprises upper and lower flanges 29, 30 and two welded webs 26, 27, with a tube 28 interposed between and welded to the webs. The tube 28 serves for the welded connection of the webs 31 ... 36 of I-girders, the edges of the flanges of which are welded to the edges of the flanges 29, 30 and to each other where they contact. This construction may be modified by providing a continuous web between the flanges 29, 30, dispensing with the tube 28, and welding on opposite sides of the web. an arcuate member and an angle member which members serve for the welded connection of the girders 31 ... 36. (5) Two flanged girders 43, 44 disposed at right-angles to each other and a third angularlydisposed flanged girder 48 are welded together as shown in Fig. 11 by the aid of an arcuate member 47 mounted between the girders 43, 44. The Specification also describes the framework of a floor or roof structure, but the description is of such a character that it does not lend itself to satisfactory abridgment. Specification 363,154 is referred to.
Patent GB-1425226-A (GB)
Title: Isolation of monohydroxyaryl compounds
IPC: C07C37/70
Filed: 1973-02-05
Abstract: 1425226 Isolating phenols HOECHST AG 5 Feb 1973 [4 Feb 1972] 5601/73 Heading C2C A process for the isolation of a monohydroxyaryl compound free from additional ionic and ionogenic substituents from an aqueous solution of an alkali metal aryloxide comprises admixing at a temperature from 15‹ to 150‹ C., the aqueous solution with a ketone which is liquid within this temperature range and that is capable of dissolving less than 15% by weight of water, calculated on the weight of ketone and water at 25‹ C., separating the organic phase from the aqueous phase and, if desired, isolating the aryl hydroxy compound from the organic phase by removing the ketone. Examples are furnished.
Patent GB-139764-A (GB)
Title: Improvements in or relating to hatching instruments for drawings
IPC: B43L13/24
Filed: 1920-02-24
Abstract: 139,764. Muller, K. March 3, 1919, [Convention date]. Rulers; squares.-A device attached to the stock of a T-square has a hand-operated ratchet by which uniform step-by-step motion is given to the T- square so that equidistant hatching lines can be drawn. In Fig. 1 the plate 1 screwed to the underside of the stock has two friction wheels 4 and 5 which bear on the edge of the drawing- board. Successive small movements are imparted to the friction-wheel 4 to advance the T-square by means of a lever 12 carrying a pawl 9 acting upon a ratchet-wheel 6 fast with the wheel 4; a pawl 19 locks the ratchet-wheel 6 on release of the lever 8. The limit of movement of the lever 8 is varied by the adjusting-screw 13. Adjustment may also be obtained by means of interchangeable ratchet wheels of different pitch. The flat of the T-square may be constructed to swivel on a locking-bolt to allow of hatching being done at any angle.