baber/WOPTO huggingface dataset:
Patent GB-1485588-A (GB)
Title: Image recording system
IPC: G03G15/26
Filed: 1975-01-23
Abstract: 1485588 Facsimile printer KONISHIROKU PHOTO INDUSTRY CO Ltd 23 Jan 1975 [28 Jan 1974 (2)] 3013/75 Heading H4F An electrostatic facsimile printer comprises an endless belt 4, Fig. 1, on which two photosensitive sheets P1 and P2 are secured. As these sheets are driven around the belt path they pass several processing stations to generate the facsimile copies. During the half revolution of belt 4 carrying sheet P1 from station E2 to exposure station El, a charging electrode 18 charges sheet P1. At the exposure station sheet P1 is bent into a shape conforming to the curvature of an exposing CRT screen 2 and exposed to the image thereon while held stationary at El. During the next half revolution from E1 to E2, sheet P1 is developed by a unit 19 and then superposed by copy paper 26 ready to pass a corona discharge image transfer device 24. The paper is separated from sheet P1 by a scraper 29 and passes through a heated image fixer 32. Sheet P1 continues to move carrying residual toner from developer 19 and passes once more beneath electrodes 18 which this time functions to discharge the sheet P1. Sheet P1 passes through station E1 and is exposed by a lamp 37 which removes the electrical potential therefrom. Unit 19 now functions as a cleaner to remove the residual toner rendering sheet P1 ready for the next cycle. Sheet P2 follows the same sequence of events one and a half revolutions out of phase so yielding two copies for every three revolutions. The structure of the photosensitive sheets is described with reference to Fig. 2 (not shown). Embodiment of the sheet bending means are described with reference to Figs. 3 and 4 (not shown). As an alternative, CRT 2 may have a flat face.
Patent GB-686578-A (GB)
Title: Improvements in or relating to thermionic cathodes
Inventor: ROGERS DOUGLAS CECIL
IPC: H01J21/20
Filed: 1951-02-08
Abstract: 686,578. Thermionic valves. STANDARD TELEPHONES & CABLES, Ltd. Feb. 8, 1951, No. 3100/51. Class 39(i) An electrode assembly has two separate cathodes 1 and 2 enclosing between them a common heater. The edges 7 and 8 of the cathodes are turned over through a reflex angle, to make more efficient use of the heater. They are supported in slots in mica spacers 3, 4, the spacers having lugs, as at 9, extending between the cathodes. The anodes may be common, or separate. Specification 686,577 is referred to.
Patent GB-1245895-A (GB)
Title: Function generating circuit for multiplication and division
IPC: H03G1/00
Filed: 1969-01-20
Abstract: 1,245,895. Multiplying and dividing circuits. INTERNATIONAL BUSINESS MACHINES CORP. 20 Jan., 1969 [9 Feb., 1968], No. 3108/69. Heading G4G. [Also in Division H4] In a function generating circuit (Fig. 1) a pair of transistors 1, 2 with interconnected base and collector is emitter connected to current source 3 and base/collector connected to earth and current source 4 respectively, while a second transistor pair 5, 6 is emitter connected to current source 7. Transistor 6 is base/ collector connected to earth while transistor 7 is base connected to source 4 and collector connected to utilization circuit 10 which may be an inverting shunt feedback amplifier (Fig. 2, not shown). The base/emitter characteristics of transistors 1, 2, 5, 6 are respectively matched and logarithmic, while the base/collector connections approach short circuit and the transistors pairs are thermally coupled. It is shown by mathematics that if w, x, y, z are the currents in the utilization circuit 10 and the respective sources 4, 7, 3, and z >> x, then For AGC, an input source 20 controls y as a function of instantaneous signal level and energies, e.g. capacitative store 21 to control z as a function of, e.g. average or peak signal level, so that for w = xy/Z and x constant, the   gain is inversely proportional to average (or peak) signal amplitude. Current x may represent input with y constant. In a modification (Fig. 3, not shown) a unity gain voltage amplifier is interposed between source 4 and transistor 5 with the base/collector of the latter short-circuited. In a further modification (Fig. 4) transistors 1, 2 are coupled to a source 3, and 5, 6 to source 7, as in Fig. 1, while a pair of transistors 26, 27 are base connected to transistors 2, 5 respectively; emitter connected to a current source 28, and respectively collector connected to positive supply 29 and current source 30. Further transistors 31, 32 are Darlington pair connected to a utilization circuit 33, to base of transistor 27 for feedback, and to collector/base of transistor 5. Mismatch is correctible by adjusting level of source 30 relative to 28, and utilization circuit 33 may be a negative feedback inverting amplifier (Fig. 5, not shown). PNP or NPN transistors may be used, and the circuit may be monolithically fabricated on a single chip.
Patent GB-897450-A (GB)
Title: Improvements in or relating to nuclear reactors
Inventor: KNIGHTS HERBERT CHILVERS
IPC: G21C13/02
Filed: 1959-01-29
Abstract: 897,450. Cooling reactors, UNITED KING- DOM ATOMIC ENERGY AUTHORITY. Jan. 22, 1960 [Jan. 29, 1959; March 23, 1959], Nos. 3293/59 and 10063/59. Class 39(4). In a gas cooled nuclear reactor, the flow of coolant gas upwards through the interior of each vertical fuel element is controlled by a valve at the element upper end, which is adjustable from the refuelling face outside the biological shield. As shown, the fuel element string 14 is supported in the chamber 7 of the moderator 3 by tube 19 attached to plug 40 in biological shield 2. The -valve 20 is formed of sleeve 21, movable axially by the threaded rod 24 to adjust the spacing of apertures 22, 25 so as to permit the flow of coolant gas upwards through 14 and through 20 into the apertures 41 in the outlet duct 6. In a modification, not shown, 24 is tubular and forms a conduit for thermocouple leads. Sleeve 21 may be rotated about the vertical axis to register with aperture 25. Specifications 873,073, 889,536, 897,446 and 897,458 are referred to.
Patent GB-1246255-A (GB)
Title: Improvements relating to the prevention of heavy fouling of vehicle sides
IPC: B62D25/18
Filed: 1970-01-23
Abstract: 1,246,255. Vehicle splash preventors. DAIMLER BENZ A.G. 23 Jan., 1970 [25 Jan., 1969; 9 April, 1969], No. 3331/70. Heading B7J. A device to prevent heavy fouling of the sides of vehicles comprises an air-guide device 4a, Fig. 2, mounted on the underside 1 of a vehicle in front of the front wheels so as to extend transversely of the vehicle and such that during forward travel a higher air pressure is built up in front of the device than behind it. In an alternative embodiment a further device is mounted in front of the rear wheels. The resultant pressure gradient causes air to flow from outside the vehicle, through the wheel casings and underneath the vehicle, thus opposing the normal flow of air from underneath the vehicle outwards which carries dust and dirt which is subsequently deposited on the vehicle sides. The device shown extends substantially the whole width of the vehicle and is straight. In an alternative embodiment the device is curved, the concavity facing in the direction of travel, Fig. 3 (not shown); in the further embodiments the device comprises two straight parts extending obliquely rearwardly from the sides of the vehicle, the said parts either meeting in the central longitudinal vertical plane of the vehicle or being joined by a transverse middle part, Figs. 4 and 5 (not shown). In all embodiments the device has a substantially vertical front surface, also it may be strengthened along its lower edge by a steel strip 9 and may be resiliently braced. As shown in Fig. 8, leaf springs 6 extend substantially the height of the device, are connected to the device by straps 8 mounted on the device and are spaced along its length. The springs are secured at their upper ends between two members having rounded edges 10 and to the underside of the vehicle. The device may be made of sheet metal or an elastic material, e.g. rubber, and may be provided with perforations to allow the passage of a limited amount of air through it.
Patent GB-939286-A (GB)
Title: Improvements in or relating to semi-conductor devices
IPC: H01L23/488
Filed: 1962-01-29
Abstract: 939,286. Semi-conductor devices. SIEMENSSCHUCKERTWERKE A.G. Jan. 29, 1962 [Jan. 28, 1961], No. 3344/62. Class 37. A PNPN switch, Fig. 1, comprises a disc of N-type silicon 2 provided with a P-type surface layer 3 by heating the disc 2 for 40 hours in an exhausted vessel in the presence of aluminium. A ring-shaped pit is etched or milled into one surface of the disc to divide a section 4 of the surface layer from the remainder of the surface layer 3. An annular electrode 5 of gold containing about 0.5% of antimony is alloyed to the surface of area 4 and forms a PN junction 6, whilst an ohmic connection is made to the layers 3 and 4 by alloying thereto discs 10 and 7 of gold containing 0.05% boron. The switch is soldered to a gold or silver plated molybdenum plate 12, Fig. 2, which in turn is soldered to a copper base 14 and encapsulated in a casing 21. The connection to the annular electrode 5, Fig. 1, is by a cylindrical member 15, Fig. 2, which is connected to a terminal member 19 by a hollow cylindrical braided conductor 16 which is crimped about pressure resistant steel tubes 16a and 16b at each end and has a flexible plastic tube 18 insulating the wire 17 connecting the trigger electrode 7, Fig. 1, to the terminal 23, Fig. 2. In an alternative form the steel tube 16b is omitted and the braided conductor crimped down on to the flexible plastic tube 18 and the connecting wire 17, Fig. 3 (not shown). Specification 910,486 is referred to.
Patent GB-517960-A (GB)
Title: Improvements in and relating to washing devices or appliances for personal use
IPC: A47K7/02
Filed: 1939-02-01
Abstract: 517,960. Sponges. TAYLOR, J. S. Feb. 1, 1939, No. 3348. [Class 131] A piece of spongy viscose is cut while dry to the desired size and shape and then the edges are softened by moistening so that a similar piece of towelling or other textile may be stitched to one face. A loop for hanging may be provided.
Patent GB-238257-A (GB)
Title: Improvements in or relating to apparatus for transferring material from railway wagons to storage bunkers or the like
IPC: B65G63/06
Filed: 1924-02-08
Abstract: 238,257. Mitchell, F. G. Feb. 8, 1924. Fixed-chamber measuring apparatus.-Apparatus intended more particularly for unloading coal from wagons with side doors and transferring it to an overhead bunker for coaling locomotives comprises a side-tipping cradle a with axis b arranged near one side, lifting means at one side of the cradle and a receiving hopper j at ground level at the opposite side, a skip-hoist z for charging the storage bunker A, and a measuring device k controlled by the skip for delivering fixed charges from the hopper j to the skip. The measuring device for charging the skip o comprises a fixed measuring chamber k with inletvalve m and a pivoted outlet shoot n both controlled by the movements of the skip. As the skip rises from the position shown the roller 1 raises the shoot n which is secured in the closed position by a catch 2. The skip next engages a lever 4 and opens the valve m. When the empty shoot descends, the valve m is closed and the shoot n lowered. The skip may be operated by endless ropes or chains, or as shown by a rope or chain r wound to and fro by a drum t.
Patent GB-812423-A (GB)
Title: Improvements in and relating to liquid sprayers
IPC: F28F25/06
Filed: 1956-02-02
Abstract: 812,423. Spray-producers. FILM COOLING TOWERS (1925) Ltd., and HOWE, E. A. A. Jan. 8, 1957 [Feb. 2, 1956], No. 3374/56. Class 69 (3). A sprayer for water cooling towers includes a nozzle 3 disposed in an aperture of a water pipe 1, and a flange 4 of the nozzle is secured to the pipe. The nozzle has a tapering bore with a castellated outlet edge on which rests a ball 15 retained within guides 13. In operation water flows through the bore and is whirled by grooves 12 before meeting the underside of the ball which deflects it through and over the castellations. The guides 13 allow vertical and rotary movements of the ball which may, together with the nozzle, be of non-metallic material.
Patent GB-322943-A (GB)
Title: A slide rule or calculator for use in sugar boiling
IPC: G06G1/12
Filed: 1929-02-01
Abstract: 322,943. Whalley, L. J. de. Feb. 1, 1929. Slide-rules.-The degree of supersaturation of sugar solutions is determined from the Brix number and the temperature, by means of a movable scale of temperatures and two stationary scales representing Brix numbers and supersaturation degrees respectively. The Figure shows a disc form of rule the upper transparent disc 4 being engraved with a temperature scale 2<a> co-operating with Brix and supersaturation scales 1<a>, 3a on the lower disc. The upper disc also carries an index mark 8 for reading against scale 3a.
Patent GB-902588-A (GB)
Title: Roller skate
IPC: A63C17/02
Filed: 1961-01-30
Abstract: 902,588. Roller skates. WILLIAMS, D. S. Jan. 30, 1961 [Nov. 22, 1960], No. 3447/61. Class 132 (1). A roller skate made substantially of plastic material comprises a heel member 31 and a sole member 32, means adjustably to connect the members together, the means comprising a hollow tube 58 affixed to one of the members, the tube having at least one inwardly-disposed tongue 74, a shank 56 affixed to the other member, the shank having channels 63 for selectively receiving the tongue, an end portion 64 of the shank being smooth and an external portion of the shank having two groups of arcuate ribs 60 thereon, adjacent ribs defining therebetween grooves 62 for selectively receiving therein the tongue. The heel member has a forward vertical portion 50 to which one end of the shank 56 attaches. The central part of the ribs is flattened and parts of the tube between the tongues 74 projecting from opposite sides are thickened and flattened on the inside. Initially the flattened surfaces 61, 76 engage and the parts are locked by rotating one part relatively to the other so that they wedge together. The ribs may be approximately semi-circular or may extend through less than a right-angle. The vertical portion 50 has brace members connecting with a skirt portion and with a triangular support for the axle 35. The heel member has a downwardly-extending recessed rear portion 43 which extends nearly to the ground and can be used as a brake. Two straps 46 engage in apertured brackets 45. One strap has teeth which selectively engage in holes 48, 49 in the other strap. The sole member has a toe-piece 66 with a central enlargement and downwardlyextending triangular parts for supporting an axle 70 for wheels 71. Braces between the parts support one end of the tube.
Patent GB-664489-A (GB)
Title: Improvements in or relating to liquid fuel dispensing systems
IPC: B64F1/28
Filed: 1946-05-03
Abstract: 664,489. Filling tanks. WAYNE PUMP CO. May 3, 1946. [May 14, 1945] No. 3458/50. Divided out of 664,393. Drawings to Specification. Class 21. [Also in Groups XVIII and XXVIII] The subject-matter relevant to Group XVII is identical with that described in Specification 664,393.
Patent GB-1166393-A (GB)
Title: Film Feed Magazines for Photographic Film Processing Machines.
IPC: G03D13/00
Filed: 1967-01-24
Abstract: 1,166,393. Feeding webs. ARNOLD & RICHTER K.G. 24 Jan., 1967 [16 Feb., 1966], No. 3491/67. Heading B8R. A film feed magazine particularly for feeding photographic film from a cartridge 1 to a film processing e.g. a daylight developing, apparatus comprises a series of rollers around which the film is looped, the shaft 11 of the first upper roller 12 being driven by a motor 7 and the lower rollers 15 &c. being mounted on a vertically movable carriage 16, and downward movement of the carriage 16 causes the speed of the motor 7 to be reduced. The shaft 32 of the other upper rollers shown is driven from the shaft 11 by a belt drive, and the initial speed of the roller 12 is such that in co-operation with a pressure roller 35 it feeds the film at a higher speed than that at which the film is taken in by the developing apparatus so that the carriage 16 moves downwardly from a raised initial position. As it reaches the lower third of its downward movement, the carriage 16 abuts against a stop 21 on a vertically movable sleeve 19 and moves the sleeve and stop downwardly. Attached to the stop 21 is a cord 23 passing over pulleys 24, 25, around a pulley 26 on a vertically-suspended rack 27, and then attached at its end to the magazine top 27<SP>1</SP>. The rack 27 meshes with a gear-wheel 31 on the shaft 29 of a variable transformer 30 controlling the power supply to the motor 7 so that the motor speed is reduced, as the carriage 16 moves downwardly, until the feed by the roller 12 equals the intake feed of the developing apparatus. The trailing end of a film 4 passing through the magazine, is stopped by a known automatic brake 5 actuated by film-end monitoring means which also stops the film drive, so that the leading end of a new film 4<SP>1</SP> can be attached to the end of the old film 4 in a stapling box 2. During this operation the continued intake feed of the developing apparatus causes the carriage 16 to be raised to its uppermost position. The box 2 is now closed, the brake 5 is released by a handle 6, and full power is applied to the motor 7 so that the magazine now operates as already described.
Patent GB-495247-A (GB)
Title: Stabilization of dithiocarbamates
IPC: C08K5/00
Filed: 1938-02-04
Abstract: Water soluble dithiocarbamates are stabilized in the presence of water by the addition thereto of a water soluble sulphide such as an alkali metal or ammonium sulphide.  The sulphide is added in amounts of approximately 0,5 per cent.  Tables are given to show the effect of the addition of varying amounts of sulphide in delaying a turbidity of the dithiocarbamate solution, due to the formation of the corresponding thiuram sulphide.
Patent GB-398483-A (GB)
Title: Improvements in driving gear for the spindles of spinning, doubling, twisting and like machines used in the production of yarns or threads
IPC: D01H1/241
Filed: 1932-02-08
Abstract: 398,483. Spindle-driving apparatus for spinning or like machines. FAIRBAIRN LAWSON COMBE BARBOUR, Ltd., Wellington Foundry, and SUFFERN, W. S., 22, Cardigan Road, both in Leeds. Feb. 8, 1932, No. 3651. [Class 120 (ii).] Driving-gear for the spindles of spinning, doubling, twisting, and like machines comprises a main grooved driving pulley d and two guiding pulleys g, k mounted on stud shafts g<1>, m, whereby an endless driving tape or cord a for each spindle c may be led partly round the driving pulley and over the guiding pulleys in such a manner that it can be applied or removed without displacement of any of the parts. One of the guiding pulleys k is mounted on a supporting member p, pivoted at t, and controlled by a weight u or a spring to tension the tape or cord, and is mounted to swivel in its bearing about a horizontal axis to allow the run of the tape or cord to be altered in accordance with the direction of the twist. Specifications 204,350 and 247,708, [both in Class 120 (ii), Spinning, twisting, &c.], are referred to.
Patent GB-365818-A (GB)
Title: Improvements in or relating to gas-singeing apparatus for yarn
IPC: D02J3/16
Filed: 1931-02-05
Abstract: 365,818. Gas burners. AEMMER ET CIE, AKT.-GES., 175, G³terstrasse, Basle, Switzerland. Feb. 5, 1931, No. 3722. Convention date, Feb. 18, 1930. [Class 75 (i).] In a burner for singeing yarns in which gas is supplied through an outer chamber 1 to outlet apertures 5 disposed i n a helical path in a central singeing chamber 4 having a longitudinal slot 3 for the introduction of the yarn, the apertures of any one winding of the helix are arranged in staggered relation to those of the adjacent windings in such a manner that only after several or all consecutive windings does an aperture lie on a line extending longitudinally through the first aperture. As shown in Fig. 3, the apertures are arranged so that the corresponding apertures of each fifth winding are in alignment. The apertures may be inclined relatively to the longitudinal axis of the burner.
Patent GB-414662-A (GB)
Title: Improvements in or relating to hydraulic transmission apparatus
IPC: F16D35/02
Filed: 1933-02-07
Abstract: 414,662. Hydraulic transmission of power. HICKS, SIR M., 12, Grosvenor Gardens, Buckingham Palace Road, and HEATH, A. R. N., Rowans, Hartington Road, Chiswick, both in London. Feb. 7, 1933, No. 3741. [Class 69 (ii).] In hydraulic transmission apparatus of the turbine type or as described in Specification 401,371, and comprising an annular working chamber and displacer members movable radially in a receiving chamber or chambers for controlling the quantity of liquid in the working chamber, the inner end of each receiving chamber is at a less distance from the axis of rotation than the inner circumference of the working chamber, and the inner end of each displacer member when in its outermost position is at a distance not greater than the said inner circumference. The form shown in Fig. 1 comprises a working chamber A' and a series of receiving chambers C each containing a displacer member D, adapted to be moved outwards, by centrifugal force against the action of a spring D<1> when permitted by the position of a slidable cam E. The weight-volume ratio of the displacers may be less than that of the liquid used in which case they move inwards against spring action, or may be equal to that of the liquid when manual control in both directions is to be employed. The form shown in Fig. 2 has two working chambers connected to different sets of receiving chambers, the displacers of which are controlled by cams O<1>, O' on a member O<2> ; the driven members act through epicyclic gearing on the driven shaft M. The control of the hydraulic apparatus may be effected from a torque-responsive coupling.
Patent GB-425961-A (GB)
Title: Improvements relating to centrifugal baskets
IPC: B04B7/18
Filed: 1933-12-16
Abstract: 425,961. Centrifugal machines. HADDAN, R., 31, Bedford Street, Strand, London.-(Western States Machine Co. ; Salt Lake City, Utah, U.S.A.) Dec. 16, 1933, No. 3764/35. Divided out of 425,716. [Class 23] A centrifugal filter basket particularly for the treatment of sugar, has a coarsely perforated wall 6 with reinforcing rings 7 and a filter lining 10. The solids are discharged between the arms of the supporting spider when the plate 4 is lifted. The thickness of the wall of solids deposited on the filter is indicated by means of concentric grooves 9, Fig. 2, in the base 5 of the basket. In a modification, the indicating device consists of pegs 15, Fig. 3, arranged on a line inclined to the radius of the base.
Patent GB-122947-A (GB)
Title: Improved Sheets for Germinating Seeds.
Inventor: HIPWELL FRANK
IPC: A01C1/04
Filed: 1918-03-04
Abstract: 122,947. Hipwell, F. March 4, 1918. Testing grain and seeds.-The loose absorbent sheets on which seeds are placed, in apparatus -for testing their germinating properties, are pitted with a predetermined number of small recesses or indentations to receive the seeds. Fig. 1 shows a circular disk of cardboard or filter-paper with round recesses adapted to receive one seed each. It is provided with one hundred recesses in ten rows of ten each, so as to facilitate calculation of the percentage number germinating in any given time. Any sub-division of one hundred may be employed. In a modification for larger seeds, 50 elongated recesses are provided. In another modification, a rectangular sheet is corrugated in one direction only, thus forming long recesses to receive several seeds each. Marks may be made in the recesses to indicate the positions for the seeds The sheets may be corrugated in two directions at right-angles to one another.