baber/WOPTO huggingface dataset:
Patent GB-232842-A (GB)
Title: Improvements in disc mills for grinding colours and the like
IPC: B02C7/08
Filed: 1924-08-20
Abstract: 232,842. Lenart, P. Aug. 20, 1924. Disc mills. - In a mill for grinding colours &c., the cover of the casing of the mill carries the feed-inlet and has means for fixing it rigidly to the casing, a recess or socket in the cover being provided for a ball-andsocket, cardan, or like universal joint whereby the carrier of the non- rotating grinding-disc is connected with it. As shown in Fig. 5, the cover is made in two parts, the outer part 1 being hinged and secured to the casing 2 by screws and having a central inflow orifice, with a flanged union 3 for connection to a pipe, and two holes for water inlet and outlet pipes 4, 5 which lead into the other part 7 of the cover. A spherical boss 6 on the part 7 engages in a spherical cavity in the part 1 around the central orifice, and a flared tube or funnel-shaped casting 8 fitted into the orifice of the part 1 prevents the material from passing into the spherical cavity. A clearance is provided between the part 7 and tube 8. The grinding-ring 9 is secured by screws to the part 7, which is prevented from rotating by the pipes 4, 5 and stops or abutments. Fig. 6 shows a cardan joint between the parts 1, 7 of the cover, a ring with two diametrically-opposite pivots 12 engaging the part 1 and two pivots 13 in a plane perpendicular to that of the pivots 12 engaging the part 7. The tube 8 is cylindrical and surrounded by a rubber packing-ring 14 within the aperture of the part. 7. Packing-rings 15 are provided in the holes in the part 1 for the water pipes. In another arrangement, Fig. 7, the rotatable disc 10 can rock on its shaft 16, a collar 17 on the shaft having lugs 18 which engage slots in the disc. The collar and disc are made spherical at 19, and the disc is hollow and supplied with cooling-liquid through the hollow shaft 16, a rubber packing-ring 20 preventing leakage. Fig. 3 shows the free end' of the horizontal shaft 16 of the rotary disc provided with a resilient and adjustable ball bearing 31. Two cylindrical members 26, 27 surrounding the end of the shaft are axially movable within a housing 36 and a spring 25 between them thrusts the member 27 against the ball bearing 31. The member 26 is adjustable by means of a handwheel 28 and nuts 29, and the pressure of the spring is indicated by means of a scale ring 32 and a pointer on a disc 33. On removing the cover, the shaft 16 and rotary disc can be withdrawn from the casing without taking down the bearing.
Patent GB-1221521-A (GB)
Title: Improvements in or relating to water tube boilers
IPC: F22B21/26
Filed: 1967-04-29
Abstract: 1,221,521. Steam generators; heating air for burners. MITCHELL ENG. Ltd., and E. C. RICHARDSON. 25 April, 1968 [29 April, 1967], No. 19840/67. Headings F4A and F4B. In a water tube boiler in which the combustion gases flow through the annular spaces between at least three coaxial helically wound tubular coils 39, 36, 40, the convolutions of the coils are non-circular, e.g. square or rectangular. Feedwater enters at 30 and flows through the outermost coil 29, comprising three coils 31 in parallel, to a header 33 connected by pipe 35 to the middle coil 36 which is connected by pipes 38, 39, to the innermost coil 40, the upper end of which is connected by pipe 43 to a coil 42 forming a baffle closing the end of the coil 36. Gases from the burner 26 flow upwardly within coil 40, downwardly between coil 40, 36 and upwardly over the coils 31 to the outlet 15. The steam is conducted by pipe 46 to a separator 47 from which pipe 48 leads to a point of use or to a superheater coil located between coil 36, 40. The centre of the baffle 47 is closed by an explosion door 15. Air for the burner is supplied by a blower 22 through pipe 21 and space 20 within the furnace wall.
Patent GB-1271100-A (GB)
Title: Photographic camera
IPC: G03B17/42
Filed: 1969-04-18
Abstract: 1,271,100. Photographic cameras. AGFAGEVAERT A.G. April 18, 1969 [April 19, 1968] No. 19850/69. Heading G2A. A photographic camera 1 has a lever 8 which combines the functions of preventing double exposures or double film advance and of a shutter drive member. The lever has a slot 8a which engages a pin 9 fixed to the camera body and a tension spring 10 urges the lever in a clockwise direction. The lever also has a feeler 8b which registers with perforations 5b provided one per frame in a film 5, a release lug 8c which cooperates with a shutter release 11, and a drive arm 8d which can be brought into engagement with a drive lever 4 of a shutter blade 3. In operation, the film is wound on by rotation of film sprocket 6 and the feeler 8b engages a perforation 5a, further movement of the film in the direction of the arrow 7 causing lever 8 to slide until the bottom part of slot 8a engages pin 9. Operation of shutter release 11 rotates lever 8 anti-clockwise about pin 9, to disengage feeler 8b from perforation 5a, the lever is now free to slide downwards under the action of spring 10 and at the same time the drive arm 8b engages shutter drive lever 4 to open the shutter. Before the sliding motion of lever 8 is complete, arm 8d disengages from lever 4 to allow the shutter to close under the influence of its return spring. The release lug 8c may be of such length that at the limit of the upwards movement of slider 8 the film sprocket 6 is locked directly against movement.
Patent GB-893906-A (GB)
Title: Process and apparatus for the treatment, particularly the drying, of pulverulent materials
IPC: F26B17/10
Filed: 1958-06-20
Abstract: 893,906. Drying, heating and cooling pulverulant material. RUHRCHEMIE A.G. June 20, 1958 [July 12, 1957], No. 19907/58. Addition to 826,020. Drawings to Specification. Classes 34(2) and 64(2) In a process and apparatus for the treatment of solid material of small particle size according to the parent Specification wherein the flow velocity of the stream of gas carrying the particles in a helical path through a heated tube remains substantially constant throughout the length of the tube, the velocity of the carrier gas stream is maintained substantially constant by enlarging the cross-sectional area between the inner member and the tube in the direction of flow of the gas by reducing the cross-section of the inner member and/or providing the tube of frusto-conical form. The inclination of the guide vanes disposed on the inner member may be varied along the length of the tube to make larger the ratio of the tangential velocity of the gas to its axial velocity at the tube inlet than at the tube outlet.
Patent GB-1085286-A (GB)
Title: Improvements in and relating to gear train systems
IPC: F16H1/22
Filed: 1966-05-05
Abstract: 1,085,286. Toothed gearing. T. TAKAHASHI and J. ISHIKAWA. May 5, 1966, No. 19934/66. Heading F2Q. Power is transmitted from a driving shaft 1 to a driven shaft 2 through gearing comprising a helical gear 3, on shaft 1, meshing helical gears 4 having splined connections with intermediate shafts 5, axially movable thrust bearings 8 being disposed adjacent the helical gears 4 and interconnected by thrust balancing means in the form of a disc 18 mounted on a spherical bearing 15 on shaft 1. The shafts 5 carry gears 6 meshing a gear 7 on driven shaft 2. The casing is oilfilled. Reference has been directed by the Comptroller to Specification 806,808.
Patent GB-989513-A (GB)
IPC: B65D75/32
Filed: 1962-05-24
Abstract: 989,513. Biaxially orienting polyolefine film. W. R. GRACE & CO. May 24, 1962 [May 24, 1961 (2); June 1, 1961], No. 20102/62. Drawings to Specification. Heading B5B. [Also in Division B7] A cross-linked, biaxially oriented polyolefine casing comprises two or more seamless pieces of polyolefin film which have been joined by heat sealing, said film having in its oriented state a tensile strength of at least 4000 1b. per square inch at 25 C., a shrink energy of at least 100 pounds per square inch in each direction at 96 C., and a thickness of 0.25 to 5 mils. The casing may be in the form of a balloon which may be placed within a like balloon with the seams out of register and then " cold racked," i.e. inflated with air at ambient temperature until a back pressure is observed, and the back pressure maintained by the continued introduction of air into the balloon, thereby compensating for the stress relaxation of the balloon. The balloon is normally inflated in this manner to about 80% of its bursting pressure. The interior of the balloon may be coated with a dispersion of finely divided carbon black with a solid organic polymer by wetting the inner surface of the balloon a dispersion of the carbon black in a solution of the polymer in a volatile solvent, and evaporating the solvent from the film of the dispersion adhering to the inner surface of the balloon. Alternatively the interior of the balloon may be dusted with a finely divided metal, the metal particles adhering by electrostatic forces to the film. The film may be cross-linked by irradiation with 2 to 20, preferably 6 to 20, megarads of high energy ionizing radiation. The casing or balloon may be biaxially oriented by exerting within it a fluid pressure while maintaining a temperature 1 to 35 C. above the transition temperature to impart at least 100% increase in area, the casing or balloon being freely suspended in a gaseous atmosphere during the orienting, and the casing or balloon being cooled to below the transition temperature while maintaining the internal fluid pressure. The casings of the invention are particularly suitable for meteorological balloons.
Patent GB-1511962-A (GB)
Title: Apparatus for accepting loose electrical components and for transferring said components to a processing machine
IPC: H01G13/00
Filed: 1976-05-17
Abstract: 1511962 Dispensing articles T WERESCH 17 May 1976 [28 May 1975 14 April 1976] 20217/76 Heading B8U Electrical components such as resistors or diodes, which have a pair of connecting wires extending outwardly therefrom, one fed to a processing machine (not shown) by means of the apparatus shown which comprises a hopper 8 which receives the components from a stile 3 of a vibratory container 1, the walls 10, 11 of the hopper 8 defining a zig-zag path, Fig. 2, along which the components pass in single file to a guide arrangement which comprises two parallel slot guides 334 (only one of which is shown in Fig. 4), each of which receives one of the connecting wires of each component, each slot guide 334 being defined by two plates 332, and at the exit area 336 of each slot guide 334 there is located a respective peripherallynotched transport disc 35 mounted on a common shaft 324 for simultaneous rotation, a blocking slide 37 being located adjacent to the exit area 336 of each slot guide 334 for controlling the passage of each component to the discs 35, each notch 36 of each disc 35 receiving one of the wires of a component. The shaft 324 is rotated from the processing machine to cause each pair of aligned notches 36 of the discs 35 to pass the exit areas 336 to receive a component therefrom, the rotation of the shaft 324 controlling the operation of the blocking slides 37 in that a cam disc (39) mounted on the shaft 324 is engaged by a roller (401) mounted at the end of a tilting lever (40), Fig. 5 (not shown), the lever (40) being mounted on a shaft 324<SP>1</SP> for rotation and having an impact bar 400 mounted thereon which engages the ends of the blocking slides 37 to move the latter into their blocking positions relative to the slot guides 334, and when the impact bar 400 is released from the said ends of the blocking slides 37 a respective spring 372 causes movement of each slide 37 to a non-blocking position in which a component is allowed to be engaged by the transport discs 35. The rear ones of the plates 332 are formed with guide rails 337 which function to prevent components from following away from the discs 35 until they are discharged to the processing machine.
Patent GB-971544-A (GB)
Title: Improvements in low-noise corona discharge devices
IPC: H04B1/10
Filed: 1961-06-05
Abstract: 971,544. Discharging static electricity from aircraft. GRANGER ASSOCIATES. June 5, 1961 [July 27, 1960] No. 20254/61. Heading H1X. A device for de-coupling corona discharge noise from an antenna mounted on an aircraft, comprises a rod of high electrical resistance projecting from the structure of the aircraft and carrying a discharge pin supported at a region 18 of low radio-frequency coupling field of the antenna with its axis at right-angles to the direction of the radio-frequency coupling field 16. As shown, the static discharger 12 is attached to an airfoil 10 by a distributed resistance 14 so that a null region 18 is established in the radiofrequency coupling field. Radially-extending discharge pins (not shown) are mounted in region 18 so that the corona discharge current is at right-angles to the residual coupling field. Distributed resistance 14 may comprise a plastic rod through which carbon is dispersed, or a nylon rod 30, Fig. 5A, coated with high-resistance paint, and discharge pins 36, 38 may be mounted directly thereon. The high-resistance paint may be connected directly between airfoil 10 and pins 36, 38 but, as shown, a bias voltage source 66 is connected between the airfoil and the high-resistance paint to enable discharges to occur at lower airfoil voltages. The dischargers may be mounted at the extremities of aircraft and in vortex low-pressure regions. U.S.A. Specification 2,933,732 is referred to.
Patent GB-853912-A (GB)
Title: A high voltage direct current power transmission system
IPC: H02H7/26
Filed: 1958-06-25
Abstract: 853,912. Converting; automatic current control systems. ALLMANNA SVENSKA ELEKTRISKA. A.B. June 25, 1958 [June 29, 1957], No. 20325/58. Classes 38 (2) and 38 (4). In a high-voltage A.C.-D.C.-A.C. power transmission system wherein a rectifier station is normally controlledso that the system delivers an A.C. output at constant current, frequency or power, there is provided a voltagesensitive arrangement which rapidly reduces the rectifier voltage to zero or a negative value if this voltage falls below a predetermined value due to a fault. As shown, an arrangement providing constant output current comprises a rectifier 10 under the control of a device 15 which provides D.C. on lines 12, 13 and is provided with a regulator 16 whereby the current is maintained constant. The device 15 is influenced by the potential of point 27 which depends on the current through valve 20 which in turn is dependent on the current through valve 19. Valves 19 and 20 are supplied from an auxiliary voltage on lines 17, 18. The potential on the grid of valve 19 is dependent on the potential at point 31 which is affected by potentials at 25 and to a potentiometer 26 and at 21 which by means of a transductor 22, rectifier 23 and resistor 24 gives a measure of the current in line 12. The arrangement ensures that a constant current, regulated by the setting of potentiometer 26, flows. The marginal current, i.e. the difference between the set output direct current of the rectifier station and the set input current of the inverter station is provided by a switch 34 which is open in the rectifier station and closed in the inverter station so that in the latter a higher voltage is impressed on the point 32 and a balance condition arises as a lower D.C. value than in the rectifier station. To prevent the inverter station from being transferred to rectification blocking means comprising a tapped resistor between the lines 17 and 12, a switch 39 and a rectifier 41 are arranged so that point 40 and head part 28 cannot be more positive than the setting of the switch 39, which is such as to prevent the inverter station going into rectification. Fault protection arrangement.-The arrangement to reduce the rectifier voltage to zero in the event of a fault comprises a transductor 43 whose D.C. current depends on the voltage between the lines 12, 13. The potential at point 51 is dependent on the current through the bridge 48 which is dependent on the transductor direct current. When the output voltage falls, the transductor direct current is reduced and at a given value the potential at the point 51 rises from its normal negative value to zero. This voltage is applied via diode 53 to affect the voltage at the point 32 and hence controls the regulator 16 to reduce the voltage to zero. An alternative voltage sensitive arrangement includes a relay.
Patent GB-1167503-A (GB)
Title: Improvements in Heat Exchange Elements
Inventor: BOORMAN COLIN
IPC: G21C3/322
Filed: 1965-11-23
Abstract: 1,167,503. Fuel elements. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. 9 Nov., 1966 [23 Nov., 1965], No. 20358/69. Divided out of 1,167,502. Heading G6C. A transverse spacer grid for a fuel element comprising a cluster of spaced elongate fuel pins is in the form of thin strips defining cells for the fuel pins, with one edge of the strips having an irregular edge for promoting eddy diffusion in coolant passing through the grid. The irregular edge may be formed by cutting the strips for a short distance along their width dimension and deflecting adjacent cut portions in opposite directions. An element in which the fuel pins are supported by a number of such grids has the grids positioned such that they all have their irregular edges on their downstream side.
Patent GB-1526706-A (GB)
Title: Skating surfaces
IPC: E01C13/10
Filed: 1977-05-14
Abstract: 1526706 Skating surface E O NATHANIEL 14 May 1977 20377/77 Heading A6D [Also in Division El] A surface on which ice skating may be performed is provided by a plurality of flat panels, interengaged at their edges and formed of high density polyethylene, polypropylene or fluorinated polyethylene.
Patent GB-1164524-A (GB)
Title: Multiple Table Swivelling Work Support
Inventor: MCCANN WALTER LEE
IPC: B23Q1/52
Filed: 1967-05-02
Abstract: 1,164,524. Mufti-table work support; milling machines. GIDDINGS & LEWIS Inc. 1 May, 1968 [2 May, 1967], No. 20397/67. Headings B3B and B3K. A multi-surface work support particularly adapted for use with a multi-spindle milling machine has a number of work-tables 17 corresponding to the spindles 11, the work-tables being pivotable in unison about respective axes which are parallel and coplanar, the pivotal motion being effected by movement of a pair of slide members 35 to each of which each table is connected by at least one pair of taut steel bands 80, 81, wrapped around the semi-circular rear portion of the tables in opposite directions. The slide members 35 are mounted in a pair of channel members 31 forming a part of upright columns 19, 21 and are moved in unison by servomotors 59, 60 operating leadscrews, each table being supported from the upright columns by brackets 63, 65, 67. Each slide 35 has a slider (191) (Figs. 16-18, not shown) attached thereto which co-operates with a fixed scale (189) to produce electrical signals indicative of the positions of the work-tables, which signals may be used in conjunction with a numerical control system. The slide 35 makes sliding contact in its slideway with plastic wear strips e.g. 55. Protection of the slides and steel bands is provided by an outer shielding layer of flexible e.g. neoprene, sheets 119, 121, 123, 177, 179 and by arcuate end shields 137 co-operating with end plates (133), 134. An inner protective layer is provided by rigid pans 163, 165, 169, 171 carrying wipers 167 in contact with the steel bands 80, 81 on the rear walls of the worktables and by vertically arranged arcuate walls 51a carrying felt seals 175, Fig. 8.
Patent GB-446462-A (GB)
Title: Improvements in or relating to delivery apparatus for sheet printing machines
IPC: B65H29/68
Filed: 1935-07-18
Abstract: 446,462. Delivery apparatus for printing-machines. MASCHINENFABRIK AUGSBURG - NURNBERG AKT. - GES., 7, Stadtbachstrasse, Augsburg, Germany. July 18, 1935, No. 20502. Convention date, July 18, 1934. [Class 100 (i)] In delivery apparatus for sheet-printing machines in which the sheet before delivery on the pile is gripped at its front and back edges by grippers, the back grippers moving in the same direction as the front grippers and retarding the sheet after it has been released by the front grippers, the back grippers 9 are guided on an endless chain 10 and grip the sheet 8 after it passes the chain wheel 11 remote from the pile 14, and guide the sheet positively over the chain wheel 12 located near the pile up to the end position of the sheet on the pile, whilst retarding the sheet in known manner until its horizontal velocity is reduced to zero. The sheet 8, after being printed by the cylinder 2 of an intaglio printing-machine, is taken from the impression cylinder 1 by front grippers 4 secured to an endless chain 3. The sheet is drawn over steel bars 5 which are secured at one end to bars 6, and are bent downwardly in a vertical direction and secured at the other end to bars 7 ; the vertical portions of the bars 5 serve as rear stops for the sheet pile 14. As soon as the rear end of the sheet 8 passes the chain wheel 11, it is gripped by the grippers 9 which move at the same speed as the grippers 4. When the sheet is over the pile 14, the grippers 4 open, and at this point the grippers 9 are moving downwardly around the chain wheel 12 whereby the horizontal velocity of the sheet is reduced to zero. The grippers 9 then open so that the sheet is delivered on the pile against the bars 5. The sheet may not be released by the grippers 9 until the latter are moving horizontally away from the pile to ensure that the sheet is deposited against the bars 5. The pile table is lowered automatically. The grippers 9 are rigidly connected with a lever 15, the lower end of which is guided on an endless chain 16 to ensure that the grippers always maintain their operative position in relationship to the sheet 8. The chains 10, 16 are driven through gears from the impression cylinder 1, one of the gears consisting of a hub and an adjustable toothed ring, whereby the grippers 9 can be adjusted to suit the length of the sheet to be delivered. The front sheet stop 31 of the pile is pivoted at 32 so that it can be moved to enable the top sheet of the pile 14 to be withdrawn.
Patent GB-1458199-A (GB)
Title: Filter composition
IPC: B01D46/54
Filed: 1973-12-04
Abstract: 1458199 Filled resin/liquid compositions AMERACE CORP 4 Dec 1973 [13 Dec 1972] 20524/76 Divided out of 1458198 Heading C3P A composition processable into a microporous sub-micron filter material includes a mixture of a polymeric resinous binder, an inorganic filler which is present in an amount by weight ranging from 1 part per part of binder to 2 parts per part of binder, a solvent for solvating the binder and which is present in an amount by weight ranging from 1-5 parts per part of binder to 3 parts per part of binder and which comprises from 29% to 35% by weight of the total composition and a non-solvent which is present in an amount by weight ranging from 0À9 to 1À3 times the amount of the solvent, from 15% to 30% of the combined amount of the binder and filler by weight comprises finely divided particles formed by grinding filter material made previously from the same composition without replacing any of the combined binder and filler content of the same composition. In the Examples (7, 10 and 11) mixtures of polyvinyl chloride, hydrated silica, cyclohexanone, water and the ground porous material made from the above composition were formed into sheets which were then made porous and used as filters.