baber/WOPTO huggingface dataset:
Patent GB-967140-A (GB)
Title: Apparatus for cleaning grain or the like
IPC: B07B4/08
Filed: 1963-01-07
Abstract: 967,140. Pneumatic separation. G. SPOHR. Jan. 7, 1963 [March 7, 1962], No. 630/63. Heading B2H.  Apparatus for pneumatically cleaning grain &c. has two or more inclined screens 16, 17 so arranged one above the other with intervening deflectors 18 that the airstream from a blower 14 is directed partly around and partly through the screens to a discharge 13 at the level of the upper screen. The material to be cleaned is fed through a hopper 11 controlled by a slide 12 and acted upon by air currents which sweep through the apparatus in the directions shown; the chaff is carried out through the outlet 13 by the air and the cleaned grain falls through the screens to a screwconveyer 19.
Patent GB-627492-A (GB)
Title: Improvements in and relating to the production of ethyl furan
IPC: C07D307/36
Filed: 1946-03-04
Abstract: Ethyl furan is produced by hydrogenating vinyl furan in the liquid phase at elevated temperature in the presence of a hydrogenating catalyst.  Pressures of 50-250 atmos. are preferred.  Batch operation may be effected with nickel catalysts at 50-80 DEG  C. or copper catalysts at 100-250 DEG  C.  Continuous operation with a copper catalyst, especially a foraminate catalyst made by treating a copper alloy in particulate form with acid or alkali to dissolve alloying metal, is preferred. Copper-aluminium catalysts of this type may be prepared as described in Specification 621,749.  Powdered nickel, Raney nickel, nickel on kieselguhr, zinc oxide or g -alumina, and nickel chromite are suitable.  Similar copper catalysts, fused copper silicate, and copper chromite, and cobalt catalysts of the same types, for example foraminate cobalt-aluminium catalysts prepared as described in Specification 611,987, may be used.  In continuous operation, space velocities of at least 1 litre of liquid vinyl furan/litre of catalyst/hour are preferred with recycle of up to 50 per cent by weight of vinyl furan.  Products containing vinyl and ethyl furans, made by reaction of furfural and acetic acid, may be treated by the process.  In an example, 30 per cent nickel on kieselguhr, previously reduced in hydrogen at 450 DEG  C., is used in a batch operation at 65 DEG  C., with 250 atmos. hydrogen pressure. Specification 596,880 also is referred to.
Patent GB-230770-A (GB)
Title: Improvements in banjos
IPC: G10D1/10
Filed: 1925-01-09
Abstract: 230,770. Ludwig, W. F. Jan. 9, 1925. Banjoes.-An inner ring 1 and an outer ring 5 are curved as shown, the ring 5 resting on an exterior flange 3 formed about the mid-height of the inner ring. The skin-head 7 is stretched on the outer ring by tension bolts 6 which pass through the flange 3, and the usual hoop 14. Sound-apertures 12 are formed along the lower edge of the outer ring.
Patent GB-387817-A (GB)
Title: Improvements in or relating to methods of and apparatus for fusing powdered materials to a foundation metal
IPC: B23K28/02
Filed: 1932-01-09
Abstract: 387,817. Coating with metals. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Alexander, P. P. ; 79, Rockaway Avenue, Marblehead, Massachusetts, U.S.A.) Jan. 9, 1932, No. 721. Convention date, Jan. 9, 1931. [Classes 72 and 82 (ii).] To coat a foundation metal, e.g. iron or steel, with a hard metal composition comprisng a carbide or carbides and a cementing metarial, the powdered coating material is deposited on the foundation metal and then melted by a jet of non-oxidizing gas heated by passing it through an electric arc. A torch 2 for carrying out the process comprises three tungsten or carbon electrodes 3, 4 adjustably mounted in an insulated casing 8 having cemented thereto an asbestos shield 9 and connected to a source of alternating current through a cable 5. Centrally disposed within the casing is a small bore tube 6 which is enlarged at 7 and connected to a tube 11. The upper end of the tube 11 is connected through a pipe 13 and valve 14 with a pipe 15 through which hydrogen is passed and is also connected through a screw-controlled feed valve to a container 20 for the powdered coating material. A pipe 23 connected to the pipe 13 through valve 25 enters the container 20 so that any desired pressure may be obtained over the powdered material in the container. An electric vibrator 22 acting on the tube 11 prevents the sticking of the powdered material. The material carried in a jet of hydrogen through the tube 6 and through the arc between the electrodes is deposited on the foundation metal in a powdered condition and is then fused by the heated gas jet. Hydrogen is also supplied through a pipe 18 to the casing 8 and issues from the lower end of the casing to provide a low velocity jet enveloping the main jet and the foundation metal. Instead of hydrogen, nitrogen, argon, helium, carbon monoxide, or mixtures such as hydrogen and propane or hydrogen and nitrogen may be used. A high carbon steel base coated with a composition comprising 87 per cent tungsten carbide and 13 per cent cobalt may be forged at 950-1000‹ C. to reduce the thickness of the coating and then quenched from 800‹ C. in running water. The foundation metal may be moved during the coating, e.g. when coating the edges of cutting tools, and the deposition and fusing of the powdered material may be continuous or intermittent. The foundation metal may be preheated by connecting one lead of the three phase system to the metal for a short time. Specifications 369,943, and 371,265, [Group XXII], are referred to.
Patent GB-1343126-A (GB)
Title: Bleaching of lignocellulosic material
IPC: D21C9/10
Filed: 1971-01-07
Abstract: 1343126 Bleaching of lignocellulosic material CANADIAN INDUSTRIES Ltd 7 Jan 1971 [8 Jan 1970] 733/71 Headings D1L and D1P A process for treating lignocellulosic material comprises the steps of (1) continuously introducing an aqueous lignocellulosic pulp to a pressure vessel, (2) admixing the pulp with an aqueous solution or suspension of an alkaline material, (3) contacting the alkaline pulp in the reacting vessel with oxygen or an oxygen containing gas at supra-atmospheric pressure and elevated temperature and (4) continuously withdrawing the oxygen treated pulp from the pressurised reaction vessel, the introduction and withdrawal of the pulp from the reaction vessel taking place continuously while the vessel is maintained under supra-atmospheric pressure. The oxygen containing gas may be air and the alkaline material may be sodium hydroxide, sodium carbonate, calcium hydroxide or a mixture of calcium hydroxide and magnesium hydroxide. An apparatus for carrying out the continuous treatment of lignocellulosic material with oxygen or an oxygencontaining gas comprises (1) a pressure vessel 6, (2) means 11 for supplying oxygen, or an oxygen containing gas to the vessel under supra-atmospheric pressure (3) means 4, 5 for introducing continuously aqueous lignocellulosic pulp into the vessel 6 (4) means, 11, for supplying alkaline reagent to the vessel, (5) means, 10, for heating the contents of the reaction vessel, (6) means 12, for agitating the contents of the pressure vessel so as to renew continuously the interface between the lignocellulosic pulp and the gas (7) means for controlling the residence time of the lignocellulosic pulp in the reaction vessel and (8) means 20, for withdrawing continuously oxygen treated lignocellulosic pulp from the pressurised vessel. Instead of the rotary pocket valve, 5, a high density pump can be used and the rotary pocket valve 20 can be replaced by a butterfly or grate. In another embodiment there may be provided means for controlling the partial pressure of the oxygen in the vessel. The pressure vessel which may be multi-compartmented is provided with mechanical agitators in each compartment, a plurality of perforated plate air dispersing members and draft tube air dispersing members. The vessel may be toroidal in shape and in the case of a single compartment vessel there may be provided means for dispersing oxygen or an oxygencontaining gas which is adopted to mix the contents of the vessel. In a further embodiment there is provided means for recirculating alkaline aqueous liquor separated from the lignocellulosic pulp withdrawn for the vessel.
Patent GB-582723-A (GB)
Title: Improvements in or relating to method of and apparatus for grinding balls
IPC: B24B11/08
Filed: 1944-01-14
Abstract: 582,723. Grinding balls. CINCINNATI MILLING MACHINE CO. Jan 14, 1944, Nos. 746 and 747. Convention dates, Dec. 24, 1942, and June 10, 1943. [Class 60] A machine for grinding balls comprises a centreless type of grinding - machine, the balls being fed in a train through the grinding throat and supported therein on a rest to which is imparted a reciprocating movement in the direction of movement of the train of balls. The machine comprises a grinding-wheel 11 and a. regulating-wheel 12 mounted on a carriage 13 on the machine bed 10 for adjustment towards and from the grinding-wheel, an attachment 18 for supporting the work being positioned between the wheels, and including a reciprocating work rest blade 19 and actuating mechanism 20 therefor. The attachment has a bed plate 22 longitudinally movable on ways 23 on the carriage 13, and carried above the plate 22, by supports 25a, 25b is a transverse plate 24 ; between the plate 22 and the plate 24 is a shuttle member 26 having bevelled edges 30a-30d adjacent its ends. These edges fitin rollers of roller assemblies 31a-31d, each pair of assemblies comprising upper and lower rollers, the upper roller 34 being carried by an arm 33 pivoted at 32 to the support 25a (or 25b), the arm being acted upon by a spring 35 and engaging adjustable stops 38a, 38b ; the lower roller 42 is carried by an arm 40 pivoted at 41 and adjustable by a stop 44. The shuttle member, which is reciprocated through a rod 80 by hydraulic mechanism 20, has a cut out portion 26b to receive the work rest blade 19, held by bolts 48, the upper edge of the blade being bevelled at 19a towards the regulating wheel ; a retainer blade 50 adjustably secured to the plate 24 prevents-the work from rising out of the grinding throat. The plate 24 has secured thereto by a bracket 56 a motor 55 on the shaft 57 of which is a cam 58 lying, preferably, in a plane parallel to the bevelled edge 19a of the blade 19, each revolution of the cam serving to move the train of balls on the rest forward the width of one ball. A feeding tube 62 is provided, into which the balls are fed, the lower end of the tube opening above the edge 19a of blade 19, a channel portion 62a on the tube holding the balls as they are fed into the grinding throat. On the shaft 57 is a second cam 90, which actuates a latch member 60, movable transversely through the tube 62, to release a ball at each revolution of the shaft 57 ; the balls thus are operated upon, during their feed through the grinding throat, by the reciprocating work rest blade, by the regulating-wheel and by the grinding- wheel, so that the balls continually present fresh surfaces to the grinding-wheel.
Patent GB-1462064-A (GB)
Title: Falling strand devolatization
IPC: B01D3/06
Filed: 1974-01-08
Abstract: 1462064 Flash separators MONSANTO CO 8 Jan 1974 [9 Jan 1973] 00747/74 Heading B1B A falling strand devolatiliser (e.g. for removing styrene from polystyrene) comprises a shell and tube heat exchanger 16 mounted in a gastight manner in the top of flash tank 17 having a jacket for the passage of hot fluid, and a vapour outlet 43, the tubes of the heat exchanger having a length:average internal diameter ratio of 30:1 to 80:1. A collecting or second flash tank (not shown) may be connected to the outlet at the bottom of tank 17, there being a valve (not shown) for controlling the flow of liquid from the outlet of tank 17, which valve is controlled by means (not shown) sensing the liquid level in tank 17. In a method of using the apparatus for removing styrene from polystyrene, the composition is fed to the tubes of the heat exchanger at 130-200C, at a pressure of 0.35 to 3.52 Kg/ cm<SP>2</SP> and a rate of 1.3 to 9.1 Kg/hr/tube heat exchange fluid is passed around the tubes of the heat exchanger such that the total heat flux to the composition is 2992 to 23918 centigrade heat units/hr/m<SP>2</SP>, the composition is in the heat exchanger for 2-10 mins. and the flash tank is at 180 to 280C and at a pressure of 2 to 800 mm Hg (abs).
Patent GB-819678-A (GB)
Title: Improvements in or relating to methods of oxidising substances
Inventor: MOSER GERHARD
IPC: B01J27/22
Filed: 1957-01-09
Abstract: In a method of oxidizing substances in the liquid phase with atmospheric oxygen in the presence or absence of additional catalytic agents, the air used for effecting the oxidation is conducted over activated carbon a short distance before coming into contact with the substance to be oxidized.  Air is passed through a filter containing activated carbon and then through the substance to be oxidized in a column, the carbon not being in contact with the substance.  In examples, invert sugar in a solution of caustic soda is oxidized to form salts of polyoxy-carboxylic acids, molten paraffin wax is oxidized to acids with and without potassium permanganate being present, and ferrous sulphate in caustic soda solution is oxidized to ferric sulphate.ALSO:In a method of oxidizing substances in the liquid phase with atmospheric oxygen in the presence or absence of additional catalytic agents, the air used for effecting the oxidation is conducted over activated carbon a short distance before coming into contact with the substance to be oxidized.  Air is passed through a filter containing activated carbon and then through the substance to be oxidized in a column, the carbon not being in contact with the substance.  In examples, invert sugar in a solution of caustic soda is oxidized to form salts of polyoxy-carboxylic acids, and molten paraffin wax is oxidized to acids with and without potassium permanganate being present.
Patent GB-788512-A (GB)
Title: Improvements relating to chucks principally for earth and rock drilling
IPC: E21B3/04
Filed: 1955-01-12
Abstract: 788,512. Chucks and mountings therefor; drilling-machine details. ENGLISH DRILLING EQUIPMENT CO., Ltd., WALMSLEY, F., and PROCTOR, R. H. Jan. 12, 1956 [Jan. 12, 1955], No. 974/55. Class 83 (3). A chuck for gripping drillrods &c. (not shown), comprises one or more jaws 5, 6, operated by a self-locking screw-and-nut mechanism 9, 11 actuated by hydraulic means 25 associated with a support 24 on which the chuck is rotatably mounted. The chuck, rotated in a supporting crosshead 24 by the drill-quill (not shown), which engages screwthreads 4, includes a casing 16, 17 attached to a guide-bush 20 in bearings 21, 22 in the crosshead and inner parts 1, 2, 3, 7, 8 providing recesses in which the jaws are movable when the crosshead and casing are displaced relatively to the inner parts through operation of two hydraulic-jacks 25 on opposite sides of the chuck. Two double-sided racks 15 supported from the casing 16 engage pinions 14 keyed to the ends of the operating- screws 9 which have threads 10 of opposite hand rotating in nuts 11 in openings 12 in the jaws to close or open the jaws depending on the direction of movement of the crosshead. As illustrated, two pairs of jaws are provided and each screw 9 passes through and operates a pair of jaws. The nuts 11 may be freed for rotation in the openings 12 to adjust the jaws, e.g. to compensate for wear, by temporarily withdrawing keys 37a from the openings. A screw 36 or a pair of screws in an inner part of the chuck and engaging a slot 37 in the casing prevent separation of the casing and inner parts during handling. Guide-rods 35 for the crosshead 24 are provided on a yoke 33 to which the piston-rods 29 of the jacks 25 are attached by nuts 32, the heads of the jacks being attached to the crosshead by nuts 26, and the yoke connected by rods 34 to a hydraulic feed-device for the drill-rod. In a modification (not shown), only one jaw of each pair is adjustable.
Patent HK-81589-A (HK)
Title: Pd/re hydrogenation catalyst and process for making tetrahydrofuran and 1,4-butanediol
Inventor: MABRY MELINDA ANN
IPC: B01J23/64
Filed: 1989-10-12
Abstract: Palladium/rhenium-on-carbon catalyst; a method employing said catalyst to produce tetrahydrofuran, 1,4-butanediol or mixtures thereof in selectable ratios from a number of starting reactants; and a method for making the Pd/Re/C catalyst.
Patent JP-S60144253-A (JP)
Title: Original conveying belt
Inventor: NAKAYAMA SHIGEO
IPC: G03G15/00
Filed: 1984-01-04
Abstract: PURPOSE:To prevent yellow tint of and adhesion of dust to a belt for conveying an original carrying on the surface thereof an image to be optically read by composing the belt of polyurethane rubber with a plurality kinds of specific additives. CONSTITUTION:An original conveying belt 10 includes an endless belt composed of cloth 1 and belt rubbers 2, 3 carried on the front and rear surfaces of the cloth 1, and is rotated, adhering to the rear surface of an original carrying on the surface thereof an image to be optically read, so as to convey the original. The belt rubber is composed of a rubber material including polyurethane rubber with additives of titanium white powder, ultraviolet absorbent and antistatic agent. The original conveying belt 10 of such a construction is white enough, almost free from yellow tint, and as it is hard to be charged and almost free from deterioration due to ultraviolet, adhesion of dust can be prevented. This is effective to prevent an original from being darkened at the peripheral portion thereof by copying or the like operation and to improve mechanical strength.
Patent JP-S59125720-A (JP)
Title: Device for converting magnification of image of copying machine
Inventor: INOUE HIROSHI
IPC: G03B27/34
Filed: 1983-01-06
Abstract: PURPOSE:To simplify the structure of the titled device and to reduce the height of said device to reduce in size by connecting a lens board to a belt and moving a mirror board by a cam rotated by the belt. CONSTITUTION:A toothed belt 23 is arranged so as to surrounded the mirror board 15 and the lens board 20 wound by 4 pulleys 24-27. The cam 30 is fitted coaxially with the pulley 25 and a follow-up pin 31 fitted to a bearing part 15a is abutted to the cam 30. When a motor 28 starts to rotate, the toothed belt 23 rotates and pulls and moves the lens board 20 along guiding rods 21, 22 in the optical axis direction. Simultaneously with the movement, the cam 30 rotates and pushes the mirror board 15 through the follow-up pin 31 to move the mirror board 15 in the optical axis direction. The positions of the lens board 20 and the mirror board 15 are adjusted by the toothed belt 23 and the cam 30, so that a required magnification of an image can be obtained.
Patent JP-2000200397-A (JP)
Title: Emergency notifying device
Inventor: IWANO MIE
IPC: G08B25/08
Filed: 1999-01-05
Abstract: PROBLEM TO BE SOLVED: To provide an emergency notifying device which recognizes the crew members of a vehicle, stores the personal information on every member and transmits these personal information to the outside in an emergency. SOLUTION: This device includes an individual recognizing part 30 which detects the fingerprints of crew members of a vehicle, a fingerprint data storage part 53 which stores the fingerprint data on the registered crew members, a fingerprint collation application software 33 which identifies the detected fingerprint data with the information stored in the part 53 and a personal information data storage part 51 which stores the personal information including the height, weight, age, sex, blood type, a person or persons to be informed of an emergency privately such as the family and the office staff, the family hospital, etc., and also the medical information including the clinical history, electrocardiogram, etc., of every crew member.  In an emergency such as the occurrence of an accident, the personal or medical information is transmitted to the outside of the vehicle via a transmitter 60 and used for the medical activities.
Patent JP-H05177891-A (JP)
Title: Paper pressure in printer
Inventor: OKADA TSUGIO
IPC: B41J13/10
Filed: 1992-01-07
Abstract: PURPOSE:To prevent the occurrence of a running failure of paper or an ink ribbon to stabilize a printing quality by providing a guide holder having a plurality of positioning holes corresponding to a positioning boss and a tapped hole corresponding to a slot for fixing a screw. CONSTITUTION:When plain paper 5 is used in a paper presser, a positioning boss 1a of a mounting part 1c is inserted to a positioning hole 3a of a guide holder 3, and a fixing screw 4 is inserted through a slot 1b to be screwed into a tapped hole 3c. When thick paper 6 is used, the positioning boss 1a of the mounting part 1c is inserted to a positioning hole 3b of the guide holder 3, and the fixing screw 4 is inserted through the slot 1b to be screwed into the tapped hole 3c. In this manner, a gap between a paper presser part 1 and a platen 2 is reduced, thus resulting in the paper presser part 1 deforming by a larger amount. As a result, a pressing force applied to the thick paper 6 is increased.
Patent JP-H02185316-A (JP)
Title: Electric discharge machining device
Inventor: WATANABE HARUMI
IPC: B23H1/02
Filed: 1989-01-06
Abstract: PURPOSE:To effectively perform electric discharge machining on not only metal but also a workpiece having high resistance by connecting a circuit to change discharge circuit characteristics from vibration into attenuation according to the resistance value of the work piece to the discharge circuit formed of a main electrode and the workpiece. CONSTITUTION:In machining a metallic workpiece 10 having resistance value 10<-5> - 10<-4>OMEGAcm, the switches S1, S2, S3 of a characteristics establishing circuit 14 are opened to minimize the resistance value of a variable resistance Re, and a discharge circuit therefore turns into a vibration circuit to make a d. c. voltage applied to the same circuit generate discharge. In machining the workpiece 10 having high resistance value of 10<-1> - 10<0>OMEGAcm, the switches S1, S2, S3 are closed to decrease a capacity component and to increase an inductance compo nent and further to minimize the variable resistance Re. A discharge circuit therefore keep vibration circuit characteristics even if connected with a high resistance, and the application of d. c. current generates the discharge. In the case where, even when the workpiece 10 is high in resistance, and the switches S1, S2, S3 have been closed, the discharge circuit does not change into vibration circuit characteristics to keep attenuation circuit characteristics, the switches S1, S2 are closed to decrease a apacity component for establishing the attenuation circuit characteristics in the discharge circuit. When the voltage of a d. c. source 12 is raised, the peak value of a discharge current becomes higher and the width of pulse narrower.
Patent JP-H06204024-A (JP)
Title: Magnetic oxide material and its manufacture
Inventor: KAWARAI MITSUGI
IPC: C01G49/00
Filed: 1993-01-06
Abstract: PURPOSE:To provide a magnetic oxide material which has extremely excellent sintering property at a low temperature in a ferrite material and a manufacturing method thereof. CONSTITUTION:A magnetic oxide material is a spinel ferrite sintering body which contains an oxide of Ni, Cu, Zn and Fe as a main material. In the sintering body, magnetic particle is uniformly dispersed and has density ratio of 90% or more and relative permeability of 150 or more. When the sintering body is manufactured by a powder metallurgy, oxide of Ni, Cu, Zn, Fe or a compound which becomes an oxide of Ni, Cu, Zn, Fe by sintering is used as raw powder, and dispersion medium of resolution parameter of 10 to 15 is used for mixing treatment of the raw powder.