baber/WOPTO huggingface dataset:
Patent GB-251513-A (GB)
Title: Improved means for agitating and stirring molten metal in open hearth and like furnaces
IPC: F27D27/00
Filed: 1925-09-28
Abstract: 251,513. Edwards, J. Sept. 28, 1925. Charges, agitation.-A device for agitating the molten charge in an open-hearth or like furnace 19 comprises a paddle 1 secured to the end of a rotatable shaft 6 which is so supported on a trolley 21 that it may be advanced or retracted and adjusted in inclination. The paddle 1 is secured between a nozzle 3 and a hollow cylinder 2 attached to the shaft 6 by a dog-clutch 7, the parts 1, 2, 3 being covered with refractory material. The shaft 6, which is rotated through worm gearing 9, 10, 11 by an electric motor 8, is supported in bearings 12 carried by brackets 13 which are slidable along guide rods 14, secured in a frame 15, by the operation of a hand-wheel 18a which drives a pair of chains 16 engaging a projection on one of the brackets. The central portion of the shaft 6 is of square section and slidable through the worm-wheel 11 to ensure the engagement of the worm-gear when the shaft is advanced or withdrawn. The mechanism for varying the inclination of the shaft 6 comprises worm-gear 20, 22, the rotation of the shaft 23 effecting, through arm 24 and pivoted links 25, tilting of the frame 15 about the shaft 9. Compressed air is supplied for cooling purposes to a passage 26 in the shaft 6 from a hollow stationary bracket 28, Fig. 7, and, after traversing the cylinder 2, escapes through the nozzle 3 into the charge to assist oxidation of impurities.
Patent GB-622666-A (GB)
Title: Improvements in or relating to fluid-operated jacks
IPC: B66F3/25
Filed: 1946-08-14
Abstract: 622,666. Fluid-operated jacks. CONWAY, H. G. Aug. 14, 1946, No. 24200. [Class 69 (ii)] A fluid-operated jack comprises an outer cylinder 11, a piston or plunger 18 fitted therein, which itself consists of a hollow cylinder and a further piston 21 working within the piston 18 carrying a piston-rod 15 projecting outside the jack, ports 29, 31, and 24, 26, being provided whereby operating fluid can be admitted to and exhausted from both the external jack cylinder and separately to and from the inner hollow cylindrical piston. When fluid is admitted to the port 31 and exhausted from the port 29, the piston 18 and piston-rod 15 move to the right until the end of the piston contacts the end of the cylinder 11 when fluid is admitted to the port 24 and exhausted from the port 26, the plunger 21 moves to the right within the piston 18. The piston 15 can, by reversal, be made to move to the left. In a modification the piston-rod extends from the innermost piston in both directions to the exterior of the jack and the outer cylinder is made in two parts to facilitate assembly.
Patent GB-666932-A (GB)
Title: Improvements in electric heating jackets for flasks and the like
Inventor: PREECE FREDERICK HAROLD
IPC: H05B3/54
Filed: 1949-09-21
Abstract: 666,932. Electric heating jackets. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. July 12, 1950. [Sept. 21, 1949] No. 24307/49. Class 39(iii). An electric heater for attachment to a round-bottomed flask comprises a resistance element or elements 1 arranged to form a jacket conforming to the shape of the lower part of the flask, and a harness including a loop 4 connected to the jacket and adapted to embrace an upper part of the flask of reduced diameter. The loop 4 is extensible and is connected by springs 5 to a circular frame 2 forming a rim for the bowl-shaped heater 1. The heater 1, which may have an aperture at its lower end, is maintained in its shape by wires 3 which are interlaced with the turns of the heater spiral 1, and which are looped over the frame 2. The loop 4 may bee inextensible, the springs 5 being then detachable from the frame 2.
Patent GB-1330948-A (GB)
Title: Apparatus for examining a substance by x-ray fluorescenece
IPC: C11D7/26
Filed: 1971-04-19
Abstract: 1330948 X-ray tubes PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 19 April 1971 [20 March 1970] 24402/71 Heading H1D A specimen 12 which is to emit characteristic X-rays when bombarded by electrons generated by a gaseous discharge between a cold cathode 4 and a hollow cylindrical anode 7 connected to an equipotential enclosure within which the specimen is mounted. The envelope is exhausted through duct 16 and the anode aperture is large enough to equalize the pressure whilst impeding the passage of impurities from the specimen to the discharge space; air or dry nitrogen may be admitted through tubes 17 or 18 to adjust the pressure to 10<SP>-1</SP>-10<SP>-2</SP> Torr. The cathode may be of aluminium or copper and may be surrounded by a grid 5 to which it is connected through a capacitor 19 and resistor 20. In operation a potential of 15-30 kV is applied across terminals 21, and the grid assumes a positive potential of 2-5 kV. The specimen 12 is supported from a lid 9 sealed to the casing by a ring 10, and its emission passes through a collimator 13 to an analyser 14.
Patent GB-1386529-A (GB)
Title: Cutting instruments
IPC: B26B21/58
Filed: 1973-05-22
Abstract: 1386529 Razor blades AMERICAN OPTICAL CORP 22 May 1973 [22 May 1972] 24458/73 Heading B4B [Also in Division C1] A cutting instrument such as a razor blade 10 is formed of a plurality of axially aligned thin hollow fibres 11 fused together to form an integral assembly, the assembly having at least one cutting surface containing end faces 16 of the fibres which are at a desired angle # to the longitudinal axes thereof. The cutting surfaces of the instrument are coated with a lubricious material of low coefficient of friction such as polytetrafluoroethylene, polyhexafluorpropylene, polychlorotrifluoroethylene or polyethylene. Such an instrument is produced by severing a fused assembly of fibres to form the required cutting surface. The assembly may be produced by drawing an assembly of larger dimensions. The drawn fibres may have inner cores that can be removed by etching.
Patent GB-441605-A (GB)
Title: Improvements in and relating to slitting machines
IPC: B26D1/24
Filed: 1935-09-02
Abstract: 441,605. Cutting webs. STRECKER, G., 2, Mathildenstrasse, and GOCKEL, T., 37, Mornewegstrasse, both in Darmstadt, Germany. Sept. 2, 1935, No. 24511. Convention date, Sept. 27, 1934. [Class 31 (i)] In a machine for slitting a web of paper &c. longitudinally by pairs of disc cutters, each pair of cutters A, B, is mounted on a transversely adjustable holder E<1>. The cutters A, B bear in upper and lower parts E, E3 of the holder, which parts are connected by a neck E<2> which passes through the slit produced by the cutters. In one form, Figs. 1 and 2, the neck E<2> displaces one edge of the web upwards and the adjacent edge downwards out of the general plane of the web. In another form, Fig. 7, both edges of the web are displaced upwards and guiding rollers O may be provided. The lower cutter B, shown as cup-shaped, is driven by gears L. M, of which the latter is slidably keyed to a shaft G. The holder E<1> is slidable on a bar H by a rack H<1> and pinion J.
Patent GB-855580-A (GB)
Title: Improvements relating to rectifier circuit arrangements
Inventor: WHEATLEY JOHN DENIS
IPC: H02M7/06
Filed: 1958-07-30
Abstract: 855,580. Rectifying. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. June 18, 1959 [July 30, 1958], No. 24533/58. Class 38 (2). In order to increase the no-load D.C. output voltage of a rectifier circuit U1 supplied from a transformer secondary winding S1 a boost rectifier circuit U2 is connected in parallel with U1, the supply voltage to U2 being greater than that to U1. A ballast resistor R1 is included in the boost circuit and rectifier U3 is included to protect the rectifier U1 at no-load. A filter circuit L1, L2, C1, C2 is included. A threephase arrangement is disclosed in which the boost supply is derived from one of the phases and stepped-up by a transformer. In another three-phase arrangement three-phase transformers are used for both the main and boost rectifiers. The rectifiers comprise bridgeconnected arrangements of silicon, germanium or selenium rectifying elements.
Patent GB-532305-A (GB)
Title: Improvements in or relating to the construction of motor propelled vehicles
IPC: B60K17/00
Filed: 1939-08-26
Abstract: 532,305. Motor vehicles. BOYDELL & CO., Ltd., E., and BOYDELL, E. Aug. 26, 1939, No. 24561. [Classes 79 (ii); 79 (iv) and 79 (v)] An arrangement for extending a vehicle chassis comprises a casing section for insertion against the engine crank case to space the clutch casing from it and means for producing a corresponding elongation between the driven shafts and the flywheel. In one form the clutch 13 remains in its original position mounted on'the flywheel 14 and a longer driving shaft 16 is inserted on which is carried a bush 17 flanged to abut on the clutch housing 19 and surrounded by a sleeve 20 with flanges 21, 22 against the latter of which the clutch release plate 23 abuts. This plate and its operating lever 24 remain in their original position in the clutch housing 12. In a modification the clutch also remains in the housing 12 and a coned extension member bolted to the flywheel carries a duplicate set of pins 15 and a ball race 30 to carry the clutch in its new position. Specification 511,961 is referred to.
Patent GB-1146473-A (GB)
Title: Improvements in or relating to the manufacture of radiator cores
IPC: B23K1/00
Filed: 1966-06-02
Abstract: 1,146,473. Making radiators; brazing. SOC. ANON DES USINES CHAUSSON. 2 June, 1966 [4 June, 1965], No. 24726/66. Headings B3A and B3R. In making a radiator core from a number of hollow elements each of which incorporates two enclosed collecting chambers interconnected by at least one circulation duct, a small hole is formed through at least one side wall of each collecting chamber, the elements are arranged in a jig with corresponding collecting chambers side by side, the jigged elements are preheated and then immersed in a salt bath to braze the elements together, the small holes being large enough to allow air to escape during preheating but small enough to minimize ingress of salt during the salt bath immersion step. Each element comprises two roll bonded sheets, preferably of aluminium coated externally with aluminium-silicon alloy, with fluid expanded end chambers 2 joined by fluid expanded circulation ducts. The side walls 5 of the chambers are recessed somewhat and a small hole 6 is provided therein. The elements are assembled with the holes 6 aligned and side and end plates and corrugated elements are included, pipe stub members being arranged in a side wall adjacent the chambers. The assembly is preheated in a furnace to 560-570‹ C. and is then plunged into a molten salt bath at 600‹ C., the air within the bodies expanding and preventing ingress of salt and the aluminium-silicon coating melting to braze the assembly. The brazed assembly is washed and the walls of the chambers are pierced by a punch cutting tool, the holes 6 forming centering holes for the tool.
Patent GB-984622-A (GB)
Title: Improvements in variable output hydraulic pumps or motors
Inventor: KING RONALD GEORGE
IPC: F01B3/10
Filed: 1962-09-28
Abstract: 984,622. Reciprocating pumps and motors. MOBAX Ltd. Sep. 28, 1962, No. 24811/61. Heading F1A. In a variable output swash plate pump or motor of instant stroke, inlet and outlet ports 10 and 11, Fig. 4, are formed in the housing 1 circumferentially and between the ends of the cylinder block 4 and communicate with the cylinder bores 5 via radial passages 9 in the block, the output is varied and reversed by rotating swash plate 15 relative to ports 10, 11. Swash plate 15 is journalled by a boss 15a in a housing 17 rotatable relative to the housing 1 by a lever 18. A peg 18b on lever 18 is biased by a spring 19 and is selectively locatable in a series of radial slots 2a in housing 2. Hydraulic balancing of the swash plate against housing 17 is effected by leakage liquid via passages 25, 26 and 27 and groove 16a, the block end face 4a is hydraulically balanced against housing 1. Excess leakage liquid leaves the housing 1 via passages 21, space 23 and a port 28. The swash plate-engaging ends of pistons 6 are conical. A splined joint 13 between block 4 and drive shaft 14 permits axial movement.
Patent GB-1466680-A (GB)
Title: Heat exchanger for gases at widely different temperatures
IPC: F28F9/00
Filed: 1974-06-05
Abstract: 1466680 Tubular heat exchanger DAIMLERBENZ AG 5 June 1974 [9 June 1973] 24955/74 Heading F4S In a tubular heat exchanger in which a hot gas (e.g. from a gas turbine) flows over tubes 14 connected at their ends to a header compartment 10 conveying a colder gas (e.g. compressed air) to and from the tubes, the joints 16 between the tubes and the header are protected from the direct flow of hot gas thereover by one or more metal plates 19 extending transversely to the direction 15 of gas flow and preferably across the total width of the tube assembly 11, the said plates 19 being secured, e.g. by welding, to the outer wall surface of the header compartment. As shown the tubes are arranged as banks of nested U-tubes (Fig. 1) and additional metal plates 17 may be disposed between adjacent tube banks.
Patent GB-593803-A (GB)
Title: Improvements in and relating to the preparation of oxidised asphalts from petroleum and/or coal tar residues
IPC: C10C3/04
Filed: 1944-12-13
Abstract: In a process for producing oxidized asphalts from petroleum and/or coal tar residues by blowing in the presence of a flux, the flux is added in separate portions at intervals during the blowing-operation, this producing lower blowing-losses and a product having a higher melting-point for the same penetration value, a lower susceptibility factor, a higher penetration index, and improved ductility.  The flux is divided into two portions, the residue and primary flux being first treated until the melting-point of the blown mixture lies between 50 and 90 DEG C., and the secondary flux is then added in one or more portions or more or less continuously while the blowing is continued and while the melting-point of the mixture ranges between 50 and 130 DEG C.  Blowing with the primary flux is continued until the "optimum melting-point" is reached, this being determined by blowing a test sample of the mix to approximately 110 DEG C. and plotting the results of penetration and melting-point tests taken at definite intervals, the former on a logarithmic scale and the latter on a linear scale; the "optimum melting-point" is the point on the curve at which it shows a marked change in slope over a narrow range of melting-points.  The secondary flux is then added in one or more stages and blowing is continued until the penetration value following each addition is approximately equal to that at the end of the first stage; the final blowing may be continued until a desired product is obtained.  As primary fluxes may be used residual oils from distillation or cracking processes, heavy distillates, slack waxes (particularly those containing high proportions of amorphous wax), foots oils, or fatty acid pitches, and they are added in proportions of 5-35 per cent. by weight. The blowing is effected at 230-290 DEG C. with an air flow of 20-60 c. ft. per ton per minute.  The secondary fluxes are mineral or vegetable oils, particularly those of resinous nature, such as extracts obtained by refining petroleum distillates, e.g., with sulphur dioxide, phenol, or furfural, and rape seed, cotton seed or like oils either blown or unblown, and they are used in proportions of 2-25 per cent.
Patent GB-714706-A (GB)
Title: Process of making cast iron
IPC: C21C1/00
Filed: 1951-10-26
Abstract: Cast-iron is made by adding to molten metal a crushed alloy, preferably in the form of briquettes, comprising 35 to 60 per cent. silicon and 4 to 10 per cent. zirconium by weight, the remainder being iron and incidental impurities.  Preferably the briquettes are added in such an amount as to impart at least 0.018 per cent. by weight of zirconium to the resulting cast-iron article.  The fluidity of the cast-iron is stated to be improved. The cast-iron formed may contain 1.17 per cent. silicon.
Patent GB-381687-A (GB)
Title: Improvements in universal joints
IPC: F16C11/04
Filed: 1931-09-07
Abstract: 381,687. Universal joints. DEHN, F. B., 103, Kingsway, London.-(Thompson Products, Inc. ; 2196, Clarkwood Road, Cleveland, Ohio, U.S.A.) Sept. 7, 1931, No. 25101. [Class 65 (ii).] A universal joint, particularly for the steering gear of a motor vehicle, comprises a socket, a pair of split sleeves arranged concentrically in the socket, a resilient ring under radial compression between the sleeves, and a stud having a cylindrical bearing surface engaging the inner sleeve. The cylindrical socket 8 is attached to a rod 1 by a split tubular part clamped over a screw-threaded part of the rod. The outer sleeve, which fits in the socket, is formed in two semicircular halves, having a flange 12 engaging the socket at its lower edge and an inwardly inclined flange 13 at the top. The inner sleeve has an upper outwardly inclined flange 17, engaging beneath the flange 13 of the outer sleeve, and a lower flange bearing against a head or washer on the stud 18 ; this inner sleeve is also formed in two halves, and each half has longitudinal flanges at its edges, which are spaced a little apart from one another. The arrangement of the end flanges on the two sleeves prevents the joint parts from coming out of place. Between the two sleeves is a rubber ring 14, formed in two semicircular halves corresponding to the halves of the inner sleeve ; this rubber is under considerable radial compression, contracting the inner sleeve around the stud to take up wear ; the rubber also allows the necessary universal movement. The socket member may be formed of a stamping in the shape of an arcuate strip with two semi-cylindrical end-pieces, these end-pieces being brought together to form the split tubular attachment part while the arcuate strip is bent to form the cylindrical socket 8. Specification 385,355 is referred to.
Patent GB-244870-A (GB)
Title: Improvements in packaged rubber articles and method of producing the same
IPC: B65B31/02
Filed: 1924-10-22
Abstract: 244,870. Carpmael, A., (Ajax Rubber Co., Inc.). Oct. 22, 1924. Drawings to Specification. Packing rubber articles; materials and goods, treating with inert substances.-Rubber articles, such as inner tubes, are packed in a container from which the air is exhausted and into which a.n inert gas such as carbon dioxide, nitrogen, helium, neon, argon, &c. may be injected. The container may be opaque. Deliquescent material such as calcium chloride or sodium chloride, or efflorescent material such as sodium carbonate or gypsum may be placed in the container, which is subsequently sealed. Specification 103,442 is referred to.
Patent GB-311163-A (GB)
Title: Improvements relating to tearing, willowing, opening and like machines for rags and textile fibres
IPC: D01G15/84
Filed: 1928-09-01
Abstract: 311,163. Rolando, O. Sept. 1, 1928. Openers &c.-The spiked boards 1 are secured to the drum 7 of a tearing, opening, willowing and like machine for rags and textile fibres by wedges 3 inserted radially between the boards andexerting pressure both radially and circumferentially. The wedges are secured by bolts 4 and nuts 5 or by screws passing through the wedge and engaging a bar on the outside of the drum. A groove 6 may be formed at the top of the wedge for engagement with a. tool to forcethe wedge into position.
Patent GB-731532-A (GB)
Title: An improved device for controlling the lateral position of the travelling wire, feltor the like of a fourdrinier paper-making machine
Inventor: CRUICKSHANKS JOHN
IPC: D21F1/36
Filed: 1951-10-29
Abstract: 731,532. Guiding wire-cloths &c. of papermaking machines. BERTRAMS, Ltd. Oct. 29, 1952 [Oct. 29, 1951], No. 25185/51. Class 96. When the wire-cloth d, or felt &c. of a Fourdrinier paper-making machine wanders off course, it is restored by contacting one of two feeler-plates m on a rod m<SP>1</SP> linked at n, n<SP>1</SP>, p, o to the stem of a 4-port valve i secured to a bearing block c of the guide-roll a, the block c sliding in guides c<SP>1</SP> under the pressure of pistons h, h<SP>1</SP> in fixed cylinders e, e<SP>1</SP> to which the valve i is connected by flexible pipes k, kl. A small displacement of a feeler m produces a small change in the valve setting allowing a slow increase in fluid pressure to one cylinder and a slow leakage from the other, thus producing slow correcting movement of the guide roller; a larger displacement producing faster correcting movement. Also, since the valve i moves with the bearing block &c. the positions at which feelers start or stop actuating the valve vary according to the amount of displacement; the corrective action is thus stopped early, and hunting is reduced or eliminated. The valve may be spring-loaded towards the closed position. In modifications: (1) pistons are fixed and cylinders move; and (2) the valve i is moved by a solenoid actuated by a rheostat electric switch.
Patent GB-479422-A (GB)
Title: An improved method for the production of bearings
IPC: B22D19/08
Filed: 1937-09-16
Abstract: 479,422. Casting composite bearings. SPRINGORUM, K. Sept. 16, 1937, No. 2.5190. Convention date. Feb. 18. Addition to 436,705. [Class 83 (i)] In casting composite bearings as described in the parent Specification, a shell of cast iron is used instead of noa-hardenahle steel. The shell is preferably preheated to 1000‹ C. and the lead bronze to 1050‹ C.
Patent GB-904668-A (GB)
Title: Improvements in or relating to funnels for filling containers such as bags
IPC: B65B39/00
Filed: 1959-07-23
Abstract: 904,668. Shoots. SCHWEIZERISCHE INDUSTRIE-GES. July 23, 1959 [Feb. 17, 1959; June 15, 1959], No. 25232/59. Class 78 (1). [Also in Group XVII] In a packing-machine, sweets flowing down a funnel 1 to a bag 21, encounter a notched roller 5. The funnel exit is closed by flaps 2, 3 opened by cam means 15 and having extensions 23 which open the bag, the latter being carried on a vertically reciprocatable holder 22 which raises it to embrace the extensions. Part 16 of the funnel wall is movable by the same or other cam means to increase the area of the exit orifice and may be agitated to stimulate flow. Several rollers instead of one, may be provided.  In another embodiment, belts 44 travel against the article flow and form part of a funnel which is pivoted about an axis 31 so that first one, then the other of exit channels 40, 41 may be brought into position over bags 38. A flap 39 enables one channel to be filled while the other is being discharged.
Patent GB-1516395-A (GB)
Title: Apparatus for measuring the evaporation rate in vacuum vapour deposition processes
IPC: G01F1/64
Filed: 1975-06-12
Abstract: 1516395 Automatic control LEYBOLDHERAEUS-VERWALTUNG GmbH 12 June 1975 [12 June 1974] 25261/75 Heading G3N In a vacuum vapour deposition apparatus the output of a sensor 10 (see Division G1) is dependent upon the rate of deposition of material 29 on a substrate 30. This output is integrated and compared at 51 with the integrated reference voltage from potentiometer 45. Any difference is used to vary the power to a heater 28 for the material 29 so as to control the thickness of the deposited film.
Patent GB-485288-A (GB)
Title: Improvements in or relating to the electro deposition of nickel-cobalt alloys
IPC: C25D3/56
Filed: 1936-09-17
Abstract: Binany nickel-cobalt alloys containing 30-60 per cent of cobalt are deposited electrolytically.  The deposition of an alloy containing 50 per cent of nickel and one containing 51,23 per cent of nickel is described.  Anodes of the composition of the deposit desired and obtained by fusion may be employed.