baber/WOPTO huggingface dataset:
Patent GB-1349991-A (GB)
Title: Winding machines
IPC: D01G27/04
Filed: 1971-05-26
Abstract: 1349991 Spool feeding device H HERGETH [trading as HERGETH KG MASCHINENFABRIK UND APPARATEBAU] 26 May 1971 [25 July 1970] 17155/71 Headings D1F D1J and D1N A winding machine, in which a spool, is supported for winding in a nip between two rolls, has a spool-feeding device including two spaced arms pivotable about the axis of one roller to place a spool in the nip. When completed roll 12 of fleece 2 is removed from winding rolls 8, 9, the arms 15, each having of slot 19 retaining an axle 20 of a spool 11, are pivoted about axis 18 of roll 9 to lay the spool between the rolls. The arm movement causes chain 16 to be driven so that device 28 lifts, in slot 29 another spool 11 and places it in slots 19 of returned arms 15, and the chain is halted. Magazine 17 comprises tray 22, and possibly additional upper trays each having a pivoted flap 23 actuable to release spools to an emptied lower tray. The apparatus includes a roll weighing device 36 and a pivoted flap 34 facilitating transfer of wound rolls to the weighing device.
Patent GB-758403-A (GB)
Title: Improvements relating to aircraft
IPC: B64D27/02
Filed: 1954-01-11
Abstract: 758,403. Gas turbine engines; jet propulsion engines. SMURIK, J. Jan. 11, 1954 [Jan. 11, 1953], No. 17164/54. Class 110(3) [Also in Group XXXIII] An aircraft is propelled by three power plants located in openended channels 25, 26 and 27 positioned between the underside of the fuselage and a curved wing 11, the plants being so arranged that they may optionally function as turbo-jets, ram-jets or rockets. The nose of the fuselage has a variable-area air intake 35 and each channel terminates in a propulsion nozzle, one, 31, being shown in Fig. 2. Each jet-propulsion plant comprises the elements shown in Fig. 2 wherein a combustion chamber 40 is supplied with air from a compressor 49 and the jet efflux passes to a turbine 50 and the propulsion nozzle 31. This nozzle has pivoted flap valves 65, 89, 70 and 71 operated by jacks 73, 73d to vary the outlet area. The combustion chamber 40 is provided with spaced air inlets 41 along its sides and a sleeve 42 with corresponding apertures is arranged to be mounted on the burner for sliding movement under the action of a jack 43. Inlets- 63, Fig. 5, are masked by an apertured sliding shutter 87 operated by a jack 88. The turbine 50 drives the compressor 49 through a gear train 52, 53, 55, 57 and 58, and gears 59, 60 drive a fuel pump 48. The turbine shaft 51 is hollow and is connected by a. rotary coupling with a conduit supplied with compressed air from the compressor, in order that the turbine blades may be cooled. In operation, the compressor and turbine are started in the usual manner and fuel is supplied to the combustion chamber 40 with the shutter 87 and sleeve 42 arranged to admit maximum air from the intake 28, the flap valves in the exhaust nozzle 31 being partially closed. When the aircraft has reached an appropriate speed the combustion chambers in the channels 26 and 27 are supplied with fuel, and air from the compressor, and are placed in communication with the chamber 40 to initiate combustion. The aircraft is then operating with all three units acting as turbojets and if valves between the compressor and the side combustion chambers are closed and the fuel supply is cut off the aircraft will be propelled by the side units acting as ram-jets and at high altitudes these engines may be supplied with oxygen from the tanks 17, 38 and 39 whereby they function as rockets.
Patent GB-1292194-A (GB)
Title: Self-priming centrifugal pump
Inventor: KINGSHOTT DENIS FRANK
IPC: F04D9/02
Filed: 1970-04-10
Abstract: 1292194 Centrifugal pumps STUART TURNER Ltd and D F KINGSHOTT 19 April 1971 [10 April 1970] 17184/70 Heading F1C A self-priming centrifugal pump having a volute-shaped casing 1, Fig.2, is provided with a recirculation tube 6 which extends around the outside of the casing and has both ends passing through fluid-tight joints, e.g.soldered joints 13, into the interior of the casing, one end 7 being arranged within the discharge outlet 3 and extending lengthwise thereof in the direction of discharge and the other end 10 extending through the casing with its axis 11 disposed radially of the impeller rotational axis. Preferably the tube is of circular cross-section and has its end 10 parallel to and facing in the same direction as end 7. The outlet 2 is connected with a downstream chamber or tube (14), Fig. 1 (not shown), in which air is separated from liquid during priming. Moreover, the inlet 5 is connected with an upstream check-valve or S bend (15) to retain sufficient liquid for subsequent priming when the pump is stopped. A removable plug (16) permits initial filling of the pump casing.
Patent GB-535766-A (GB)
Title: Improvements in or relating to rotary printing presses
IPC: B41F9/10
Filed: 1939-10-11
Abstract: 535,766. Intaglio printing-machines. GOSS PRINTING PRESS CO., Ltd. Oct. 11, 1939, No. 17262/40. Convention date, Dec. 21, 1938. Divided out of 535,580. [Class 100 (ii)] Inking-apparatus. - In an intaglio printing- machine in which the flexed reciprocating doctor 12 is supported by a backing plate 16 means are provided at each end of the cylinder to flex the backing plate away from the doctor to reduce the friction on the doctor and to prevent displacement or bending of the latter in these regions. As shown arcuate plates 19 adjustably secured by bolts 22 and slots 20 to the press frame at each side have projecting parts of which bear against the end portions of the backing plate 16.
Patent GB-334581-A (GB)
Title: Improvements in or relating to the manufacture of articles of rubber and similar substances from aqueous dispersions containing such substances
IPC: C09D5/44
Filed: 1929-06-06
Abstract: 334,581. Dunlop Rubber Co., Ltd., James, R. G., and Twiss, D. F. June 6, 1929. Addition to 301,100. Emulsions, making.-In the electrophoretic de,- position of rubber or other organic material from a dispersion the particles of which normally carry a negative charge, the hydrogen ion concentration is increased in the presence of formaldehyde to such a degree that the charge on the particles is reversed without coagulation occurring; deposition is then effected on the cathode or a porous or semi-permeable mould surrounding it. When depositing from natural or dialyzed ammoniated latex the addition of protective colloids is not necessary, but when treating latices which have been deprived of their natural protective colloids, e.g. by centrifuging, a small addition of a protective colloid such as blood albumen is desirable. In an example 100 parts of preserved natural latex containing 35 parts of rubber and 0.6 parts of ammonia are treated with 38 per cent formaldehyde until the pH value falls to 6. 50 parts of distilled water are then added. 100 parts of 40 per cent acetic acid are then added, whereupon reversal of charge takes place. In another example 100 parts of concentrated latex containing 60 parts of rubber and 0.5 parts of ammonia are treated with sufficient 38 per cent formaldehyde to produce a pH value, measured 10 to 15 minutes after the addition, of 7.5. 100 parts of a neutral aqueous solution containing 0.7 parts of casein previously dissolved in the minimum quantity of dilute ammonia is then added, and finally 100 parts of 60 per cent acetic acid rapidly poured into the well-stirred mixture. It is possible to reduce the pH value by addition of formaldehyde to 4.5 without coagulation, the particules retaining their negative charge. The dispersions treated may be of rubber, guttapercha, balata, or other vegetable resins analogous thereto, unvulcanized or vulcanized and may contain vulcanizing or compounding ingredients and mav be natural or artificial; they may also be of rubber reclaim or synthetic rubber. The dispersions may contain addition agents adapted to prevent formation of gas at the cathode. Specification 331,563 is referred to.
Patent GB-1243614-A (GB)
Title: Cardiac valve
IPC: A61L27/00
Filed: 1970-04-13
Abstract: 1,243,614. Heart valves. GULF GENERAL ATOMIC Inc. 13 April, 1970 [30 April, 1969], No. 17363/70. Heading A5R. [Also in Division F2] A heart valve has a closure member in the form of a free ball or hinged flap which is made by coating with a material inert to blood an inner substrate. The substrate has a density less than blood while that of the coating is greater, the overall closure member density being substantially equal to blood and between 0.97 and 1.07 gm/cm<SP>3</SP>. A sound-absorbing buffer layer may be placed between the substrate and the coating. In one form of closure member the substrate is a hollow sphere or spheroid made by joining two hemispheres of graphite, tantalum, tungsten, molybdenum or a refractory material and the coating is of isotropic pyrolytic carbon and is vapour deposited. Silicon carbide may be added to the coating material. On cooling the substrate contracts more than the coating so the latter is permanently in compression. In a modification the substrate is a solid sphere of porous carbon. The buffer layer is preferably pyrolytic carbon. In the other form of closure member the substrate is in the form of a hollow two part disc secured to two apertured hollow two-part transverse webs through the apertures of which a pivot pin extends. The substrate and coating are of the same materials as the first form of closure member.
Patent GB-421136-A (GB)
Title: Improvements in and relating to electric current rectifiers
IPC: H01L25/07
Filed: 1933-06-19
Abstract: 421,136. Static contact rectifiers. RUBEN RECTIFIER CORPORATION, 46, Lawton Street, New Rochelle, New York, U.S.A. June 19, 1933, Nos. 17412 and 17413. Convention dates, June 18, 1932 and April 13, 1933. [Class 37] A static contact rectifier comprises a body of electropositive material formed from a compound of silicon with one of the elements beryllium, magnesium, calcium, zinc and aluminium, maintained in contact with a body of electronegative material formed from one or more metallic oxides, sulphides, selenides or tellurides. A non-polarizing substance, comprising carbon, a metallic carbide, a metal body having a carbonized surface, or an alloy of nickel and chromium, may be placed in contact with the outer surface of the electronegative body. In the construction shown in Figs. 1 and 2, a metallic base member 10, preferably of copper, carries a conducting plug 11, one face of which is provided with a layer 12 of electronegative material, e.g. copper sulphide. A sleeve 13 of insulating material, or of aluminium coated on the inside with an insulating layer of oxide, is placed over the plug 11 and forms a cup to receive the silicide forming the electropositive material, which is held in place by a metallic member 16 having a central projection 18 and resilient arms 17, which are secured to the base 10 by insulated bolts 19. In a modification, Fig. 4, the base member 10<1> is integral with the plug 11<1> and is provided with a threaded shank 23. Another base member 10<11> with a projection 11<11> and threaded shank 23<1> is positioned as shown and clamped to the base 10<1> by means of bolts 19<1> and a resilient member 24. A number of units may be connected in series by means of coupling sleeves 25. In the arrangement shown in Fig. 6, a pair of units, each comprising electrodes 33 of pressed magnesium or calcium silicide and 34 of copper sulphide clamped between terminal members 32 are mounted in a vacuum tube to form a full wave rectifier. Fig. 8 shows a pair of units, each comprising discs 40 of the compressed silicide, discs 41 of a sulphide, selenide or oxide, and non-polarizing layers 42, clamped between terminal plates 47, 48, 49 on a bolt 43. In another arrangement, four units are mounted together. In the construction shown in Fig. 12, an insulating collar 80 surrounded by a brass strengthening ring 81 is placed over an electrode, and a lead washer 53, carbonized nickel disc 54, layers of electronegative and electropositive material 57<1>, 58', a nickel disc 54<1> and another lead washer 53<1> are successively mounted on the electrode in the tube 80. A second electrode is finally placed on the disc 53<1> and the materials are welded together by passing an electric current between the electrodes.
Patent GB-777350-A (GB)
Title: Improvements in or relating to medical diagnoses
IPC: A61B5/00
Filed: 1954-06-14
Abstract: 777,350. Diagnostic apparatus. SCHWAMM, E., and REEH, J. J. June 14, 1954 [July 3, 1953; Oct. 20, 1953; Nov. 21, 1953; Dec. 16, 1953], No. 17467/54. Class 81(2) [Also in Group XL(b)] A diagnostic appliance comprises means for measuring the intensity of infra-red radiation at various frequencies emitted by particular parts of the body. Any form of radiation-sensitive element may be employed and, in the diagrammatic arrangement shown it consists of a coating of bismuth on a thin film 6, so placed in an evacuated bulb 4 as to receive radiation through a quartz window 5. Its resistance is balanced by a similar element 7 in a bridge circuit consisting also of resistances 8, 9. A.C. is applied across the bridge and the output is amplified by valve 11 and rectified by valve 16 to control a measuring instrument 17. The open end of a tube 19 is placed against the body and the particular band of frequencies being investigated is determined by an exchangeable filter 20. In modified forms provision is made for focusing the radiation on the sensitive element by lenses or mirrors and for the inclusion of a manually operable shutter. It is further proposed to surround the radiation-receiving end of the instrument with a cylindrical mass of metal, so as to prevent the temperature of the instrument rising as a result of continued exposure to radiation, and, in the case of relatively low frequency radiation, a rotating, apertured disc is set in the path of the received rays to modulate them at a desired freauency and thus make them more readily detectable.
Patent GB-467947-A (GB)
Title: Tension device for sewing machines
IPC: D05B47/00
Filed: 1936-06-24
Abstract: 467,947. Sewing-machines. FAIRWEATHER, W. C. (Singer Manufacturing Co.) June 24, 1936, No. 17517. [Class 112] A tension device for the needle thread has means for adjusting the initial tension of the discs and check spring. The head 10 of the machine has a recess 11 to receive the cylindrical arbor 13 of the tension device, the shank being held by a set screw. The usual check spring 15 is coiled about the arbor with one end 16 anchored in one of eight slots 17 in an enlarged portion of the arbor. The other end of the spring forms a loop for engaging the thread, the movement of the loop being limited by a stop on the plate 20. The slot 17 receiving the spring shank determines its tension. The tension discs 26, 27 are fitted on the arbor between the plate 20 and the plate 28. The plate 28 has a part 29 entering an aperture in the machine, to prevent rotation. Two telescopic members 30, 38 enclose a spring 34. The tension is regulated by rotating the nut 42. This'turns the member 38 by the engagement of the lug 43 in one of the slots 40. The rotation of the nut and member 38 causes them to travel down the arbor causing the spring 34 to press the discs 26, 27 together with out rotations. A usual tension release is provided consisting of a lever 46 and rod 45 operated by the presser lifter.
Patent GB-1082004-A (GB)
Title: Improvements in adjustable seats
Inventor: ROBERTSON STANLEY CROXFORD
IPC: B60N2/16
Filed: 1965-04-27
Abstract: 1,082,004. Adjustable seats. HALLAM, SLEIGH & CHESTON Ltd. April 4, 1966 [April 27, 1965], No. 17591/65. Heading A4J. In a vehicle seat adjustment linkage, carrier links 5 are moved, in relation to control links 18, so that pivots 23 travel in straight vertical lines, as cross-shafts 9 are moved conjointly along slideways 7. Pivots 20 are fixed in relation to rails 6 and 7 and shafts 9 are displaced by a screwthreaded rod (14) journalled in base member 4 and engaging a nut captive in frame (10, 13). Alternatively, the fixed pivots 23 may be provided on base frame 4, 6 and the slideways on seat frame 2. Rails 6 have flanges (6a) which support the base frame on slideways (21) for fore and aft adjustment of the seat.
Patent GB-231374-A (GB)
Title: An improved support for under garments
IPC: A41F15/02
Filed: 1924-07-23
Abstract: 231,374. Mershon, G. B. July 23, 1924. Spring hooks.-A hook for supporting the strap 5 of an undergarment 2 comprises a length of wire bent in the middle to form an eye 10 and having arms 6, 8, spaced apart and converging towards their ends, which are bent upon themselves. The eye 10, arm 8, and its rounded end 11 are sewn to an outer garment while the resilient arm 6 is left free so that the ends 11 can be sprung apart for the reception of the strap 5. Fig. 4 shows a modification in which a roller 12 is fitted to the arm 6. Fig. 6 shows a further modification in which the arms 6, 8 are not parallel but form part of a circle.
Patent GB-1157081-A (GB)
Title: Improvements relating to Implement Carrying Vehicles
Inventor: EVANS KENNETH
IPC: B62D49/08
Filed: 1965-04-27
Abstract: 1,157,081. Articulated vehicles. INTERNATIONAL HARVESTER CO. OF GREAT BRITAIN Ltd. 25 July, 1966 [27 April, 1965], No. 17636/65. Headings B7D and B7H. In an articulated vehicle comprising a pair of uniaxle sections upon one of which, 17, is mounted an earth working or other implement 19, which may result in an out-of-balance load when cornering, the sections are articulated together by an inclined pivot 20 and the other section, 18, is pivotally connected to an axle 22 by a pair of rigid links, 23, Fig. 6 or 26, Fig. 9, of equal length, the distance apart of their upper pivots being different from the distance apart of their lower pivots. In modifications, the links, 25, Fig. 8 or 27, Fig. 10, may be connected to downward extensions 24 of the frame member 18.
Patent GB-407401-A (GB)
Title: Improvements in or relating to automatic frequency regulating arrangements for alternating current supplies
IPC: H02J3/08
Filed: 1932-06-22
Abstract: 407,401. Speed governors. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and GIBSON, J: W., c/o General Electric Co., Witton, Birmingham. June 22, 1932, No. 17628. [Class 57.] To control the frequency of an alternating current supply device or generator the incidence of a beam of light or like radiant energy 8 upon a photo-electric cell or cells 1, 2 arranged to control the speed of the generator is controlled by the co-operation between a member 5 moving at a master rate or frequency and a member 6 moving at a rate of frequency depending on the frequency to be controlled. The beam from a lamp 3 passes through a slit 9 in a fixed screen 4 and intermittently through a slit 10 in a pendulum 7 driven at a standard rate to fall upon a disc 6 driven at a rate proportional to the generator frequency. In normal conditions the beam passes through a hole 11 in the disc to fall between two photo-cells 1, 2. These cells operate respectively, in known manner, means to raise and lower the speed of the generator when the disc is slow or fast on the standard speed, and by shaping the slot in the pendulum the impulse given by the illumination of the cell may be made proportional to the degree of divergence from the standard frequency. To increase the sensitiveness the hole is made small and a mirror is interposed in the course of the light beam to define closely the point of changed operation. To control the share of load taken by the generator load sharing means according to Specification 360,593, [Group XXXV], may be used or the disc 6 may be driven through differential gearing so that by moving one clement in accordance with the movements of a wattmeter or of the governor motor the disc may be made fast or slow on the actual generator speed according as the load is light or heavy. In a modification a single cell is connected by commutating segments on the disc 6 to effect raising or lowering of the speed and an alarm device may be operated by the beam on excessive frequency difference or stoppage of the pendulum.
Patent GB-563563-A (GB)
Title: Improvements in testing stands for measuring the propeller torque of aircraft engines
IPC: G01L3/16
Filed: 1942-12-12
Abstract: 563,563. Dynamometers. AKTIEBOLAGET AEROTRANSPORT. Dec. 12, 1942, No. 17702. Convention date, Dec. 15, 1941. [Class 106 (ii)] A testing stand for measuring the propeller braking torque of an aircraft engine comprises a mounting member 1 for the engine which is connected to the beam 3 of a balance by means of two links 2 forming opposite sides of a parallelogram linkage and transmitting to the beam the reactive torque corresponding to the propeller torque, and is characterised in that the two links 2 include elastic connecting members 7 which permit small rotary movements of the links relative to the mounting member 1 and the beam 3 respectively at the connecting points, which movements are completely free from sliding friction, and that the beam co-operates at one end with a force-absorbing member permitting small deflections and is connected to a measuring instrument 28. The plate 1 is connected to a rigid frame 6 by four horizontal links 4 and one lateral link 5, all incorporating elastic members 7, comprising a rubber ring vulcanized to steel sleeves, Fig. 3 (not shown). The beam 3 is elastically pivoted at 13 and its movements are opposed by two helical springs 16, 17 and a dashpot 23. Movement of the beam is transmitted by a rod 26 through a hydraulic vibration suppressor 29 to a lineardimension dial gauge 28. In the modification shown in Fig. 5, -a strong spring 34 presses on the beam which carries a cover-plate 33 opposing the flow of fluid from the inside to the outside of a hydraulic pressure chamber 32 under the influence of a pump 39. The pressure in the chamber 32 and hence in a vessel 42 is a measure of the movement of the beam and, therefore of the propeller torque, and this pressure is measured by a mercury manometer 41. The measuring medium may be air instead of liquid.
Patent GB-666193-A (GB)
Title: A mobile apparatus for working on work surfaces such as streets or roadways
IPC: E01H1/05
Filed: 1949-07-06
Abstract: 666,193. Road grading and cleaning machines. KEOGH, H. B. July 6, 1949 [July 20, 1948], No. 17845/49. Class 107 A pilot wheel 43 or skid tracking the road in front of a rotary brush 22, suction device, grading member or other tool operates a valve 63 controlling a servomotor 54 for raising or lowering the brush &c. to conform with the road contour or to clear obstructions. The brush &c. is mounted in the bifurcated end 19 of a tubular arm 17 hinged to the lower end of an arm 12 pivoted between brackets 11 welded to the frame 10 of the vehicle. A vacuum chamber 54 is suspended by a link 55 from lugs 56 on the arm 12, and has a diaphragm connected by a rod 58 and links 59 to the arm 17. The pilot castor wheel 43 is mounted on parallel links 45 pivoted to the end of the arm 17, and the lower link operates the valve 63 when the wheel rises over an obstruction to connect the vacuum chamber 54 through a pipe 67 and valve passage 68 with a source of vacuum 65. The diaphragm is thus raised together with the arm 17 and the brush &c. The valve casing 62 moves with the brush and shuts off the pipe 67 from the vacuum. If the pilot wheel meets a depression, the lowering of the arms 45 effects an anticlockwise movement of the valve 63 and the recess 71 in the valve connects the pipe 67 with the atmosphere so that the brush assembly descends. To compensate for bristle wear the valve casing is adjusted by a handle 76 and flexible cable 75. The brush is driven from a shaft 23 by chains 25, 29 and gear-box 20, and its inclination may be varied by a hand wheel 92 operating a cable 91 secured to an arm 87 on the gearbox 20. The vacuum chamber 54 may adjust the brush positively in both directions, the valve being suitably modified. The pivots of the arms 12, 17 have conical bearings adjustable to take up wear. The rotary valve may be replaced by a sliding piston valve. A rotary cylindrical brush may be interposed between two side brushes and the pilot wheel 43 replaced by a skid. The hollow arms may be evacuated to form the vacuum source.