baber/WOPTO huggingface dataset:
Patent GB-432485-A (GB)
Title: Improvements in and relating to television and the like systems employing cathode ray tubes
IPC: H01J29/50
Filed: 1933-12-29
Abstract: 432,485. Cathode-ray tubes ; television. BLUMLEIN, A. D., 7, Courtfield Gardens, Ealing, London. Dec. 29, 1933, No. 36653. [Classes 39 (i) and 40 (iii)] To allow multiple-spot scanning in a television &c. cathode-ray tube, several electron beams are separately modulated in intensity and are focused on to the screen as spots close together along a straight line parallel to the scanning' lines of the image. When the phase relationships between the modulations are correctly controlled, the images due to the several spots are superposed to form a single, bright image. Fine, parallel wires 11.. 15, Fig. 1, or flattened rods extend across a rectangular aperture in, and are insulated from, a screen 16 in front of a rectilinear cathode 5 perpendicular to the wires. The negative bias on the parts 11 .. 16 is such that no electrons pass until control impulses are applied to one or more of the wires 11 .. 15 when an electron beam emerges past each such wire and is focused on to the screen 4 by positive cylinders 17, 18. The beams from the wires form closely adjacent spots on the screen and the control impulses are applied to the wires through a phase-retarding network, Fig. 2, comprising series inductances L, shunt condensers 24.. 31, 33 and a resistance 32, the cut-off frequency of the network being above the highest frequency in the television receiver. To compensate for the effect of the potential of one control wire on the electron flow past adjacent wires, compensating potentials are superposed on the control potentials on adjacent wires by a delay network or the waveform of the control potentials are modified by delay networks. The spots may be produced by separate electrode systems. In another arrangement, Fig. 3, (not shown), the tube has an elongated equipotential cathode, a cathode-screen, an accelerator, a modulator, a first anode and a wall silvering forming a second anode ; the electrodes are slotted and the modulator contains insulated and screened control electrodes.
Patent GB-759244-A (GB)
Title: Improvements in or relating to a method of producing non-metallic magnetic cores having substantially rectangular hysteresis loops
IPC: C04B35/26
Filed: 1954-12-20
Abstract: A magnetic core is made of a material with a substantially rectangular hysteresis loop and low coercivity and having the formula Lix Ni (1-2x Fe (2+x) O4 where x lies between 0.40 and 0.48, which material is made by heating a mixture of lithium, nickel and iron compounds in an atmosphere containing more than 50 per cent by volume of oxygen at 1100 DEG -1200 DEG C.  Lithium carbonate and ferric oxide are ground in alcohol or benzene, preheated at 750 DEG C. (in a mixture of CO2 and O2, cooled and reground in alcohol, to form a composition of the formula Li0.5 Fe2.5 O4.  Nickel carbonate and ferric oxide are ground in alcohol, heated to 750 DEG C. in an atmosphere containing O2 cooled and reground in alcohol to produce an oxide mixture with atomic proportions of Ni and Fe of 1:2.  The Li and Ni containing substances are mixed in suitable proportions, ground in alcohol, and sintered at 1100 DEG C. to 1200 DEG C. in O2. The compound may be reheated to at least the Curie temperature and cooled in a magnetic field.  Figures to indicate the rectangularity of the hysteresis loops of several substances having different values of x are given.
Patent GB-342827-A (GB)
IPC: H01J19/28
Filed: 1929-12-02
Abstract: 342,827. Couplings. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Murphy, G. F. ; 206, 2nd Street, Scotia, New York, U.S.A.) Dec. 2, 1929, No. 36869. Convention date, Dec. 5, 1928. [Class 38 (i).] A cylindrical anode of a thermionic discharge device is built up of arcuate members 6 having radial cooling flanges and interlocks, disengageably, with supporting tungsten conductors 10, which are slidably fitted within grooves 9 formed in a pair of flanges. Rectangular apertures 14 are cut in the grooved portions of one flange. A molybdenum strip 11 is riveted to the flanges and is formed with bent tongues 12, 13 which house as a tight fit the supports 10 which are welded thereto. The supports may be withdrawn after the tongues are severed at the weld.
Patent GB-368821-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04M15/10
Filed: 1930-12-09
Abstract: 368,821. Automatic exchange systems. AUTOMATIC ELECTRIC CO., Ltd., (formerly AUTOMATIC TELEPHONE MANUFACTURING CO., Ltd.), Strowger Works, TAYLOR, R., 30, Oulton Road, Wavertree, and SARGESON, G. F., 12, Ovolo Road, Stoneycroft, all in Liverpool. Dec. 9, 1930, No. 37179. Addition to 357,633. [Class 40 (iv).] In a booster-battery metering arrangement the meter MTR in series with a rectifier MRC is normally short-circuited by direct ground on the holding conductor, the rectifier being poled so that it passes booster metering impulses but prevents maintenance of the holding relays over the meter when holding potential is removed. As the meter restores with certainty after a metering impulse, the arrangement is particularly suitable for repeated metering. The call-finder shown is a modification of the finder employing a combined line and cut-off relay described in Specification 365,553. When a subscriber calls, relay LC operates its light armatures lc1, lc2 to make marking and starting circuits. The finder hunts in a local circuit until it finds battery over LC whereupon this relay operates all its armatures to open the starting circuit and connect up the meter.
Patent GB-786035-A (GB)
Title: Selectively readable storage devices for signals
IPC: G06F7/22
Filed: 1950-06-23
Abstract: 786,035. Photo-electric reader. DIRKS, G. June 23, 1950 [Oct. 1, 1948], No. 37216/54. Divided out of 786,021, [Group XIX]. Class 40 (3). [Also in Group XIX] A selective optical storage means for signals comprises a signal carrier and signal-sensing means with relative movement between them, each cycle of movement being of a predetermined extent, and means whereby sensed signals may be transferred selectively from the signal carrier. In a first embodiment a transparent disc 1 has a photographic layer comprising a number of signal tracks 3‹ to 3<SP>9</SP> which can be selectively illuminated for reading by a photo-cell, by a series of flash tubes 4 0  to 4<SP>9</SP> arranged behind a narrow slit. A required portion of a track is selected by timing precisely the period of illumination of a selected flash tube. In another embodiment which may be used, e.g. for reading out logarithms or other constants, address signals a/00-90 and b/0-9 on a microfilm layer are selected by movable diaphragms A and B. The address signals are repeated in a number of sectors I, II, III, IV, equal to the number of denominations in the logarithm or other information to be read out by a photo-cell from the areas c/0-9. The address signals are detected by separate photo-cells and co-ordinated by a coincidence gate. The store may be associated and synchronized with a computer and may be in the form of a drum with sensing means shiftable axially or circumferentially. Selection may be controlled by a comparing device such as that described in Specification 786,033, [Group XIX].
Patent GB-894437-A (GB)
Title: Typewriter ribbon reel winding mechanism
IPC: B41J31/10
Filed: 1959-11-03
Abstract: 894,437. Typewriters &c. INTERNATIONAL BUSINESS MACHINES CORPORATION. Nov. 3, 1959 [Nov. 24,1958], No. 37226/59. Class 100(4) A reel 69 for winding up a carbon ribbon 38 fed from a typewriter is removably mounted on a support 54 tiltable on a plate 33 detachably mounted by notched arms 34 on studs on the typewriter frame. Feed rolls 36, 37 are caused to give a step feed to the ribbon when a type bar sublever 1 engages a cam 2 with a power roll 3 causing a link 12 to be pulled down to trip another cam into contact with the power roll to cause a link 25 to rock an arm 26 which through a clutch spring 40 imparts a feed motion to the rolls 36, 37. The ribbon spool 69 has a slotted hub 68 which slides between arms 66 of the support 54 and a flange 71, Fig. 7, having two ribbon attaching pins 80, Fig. 2, which come opposite cut away portions of the second flange 86 when an opening 89 in its hub 88 is forced to engage a projection 82 of the flange 71. Actuation of a button 50 of a latch member 45 forces the feed roll 37 to the disengaged position of Fig. 2. The movement of its mounting arm 42 disengaging a latch 60 to allow the support 54 to be swung away from the tape 33 by a spring 56 thus disengaging the gears 72, 73. In this position the spool 69 can be removed, emptied, and replaced, and when the support 54 is restored to its latched position the gears 72, 73 re-engage and drive the spool until a projection 77 engages a finger 78 of the member 46. In this position a pin 80 is aligned with the feed rolls 36, 37 so that the ribbon can be attached thereto. The next key actuation rocking the arm 26 causes its finger 93 to restore the member 46 allowing a spring 44 to re-engage the feed roll 37 with the feed roll 36 which is also given a stepped feed.
Patent GB-1157496-A (GB)
Title: Photographic Camera.
IPC: G03B15/04
Filed: 1966-08-19
Abstract: 1,157,496. Photographic cameras. EASTMAN KODAK CO. Aug. 19, 1966 [Aug. 23, 1965], No.37234/66. Heading G2A. A photographic camera for use with a multilamp flash attachment comprises a socket member 1 rotatable for selectively indexing an inserted attachment sequentially to place the lamps thereof in a firing position (with wire leads 6, 7 touching firing contacts 8, 9), sensing means 12 - 16 for sensing the condition of a lamp prior to locating it in the firing position, and means 17 - 19 responsive to the sensing means for indicating to the operator the sensed condition. Assuming that a lamp has just been fired and the mechanism is being indexed, the member 1 and a control plate 10 thereof will rotate in the direction A. The wire leads 6, 7 of the next lamp will touch sensing contacts 12, 13 thereby completing a circuit or not, according to whether the bulb has not or has been used. If a circuit is completed, an electromagnet 14, 15 is energized, attracting an armature 17, thereby allowing the member 1 and plate 10 to complete their indexing movement. If the circuit is not completed, the armature remains as shown, and is spring urged into a notch 11 of the plate 10 preventing further indexing. If the operator then replaces the flash attachment with an unused one, a bulb thereof completes the circuit, the armature is moved, and the attachment may be manually rotated to the firing position. Reference has been directed by the Comptroller to Specification, 1, 034, 909
Patent GB-1055859-A (GB)
Title: Cladding of building structures
IPC: E04B2/94
Filed: 1965-09-01
Abstract: 1,055,859. Wall cladding. F. ROSS. Sept. 1, 1965. No. 37263/65. Heading E1R. Cladding for a building comprises prefabricated reinforced concrete slabs 1 with integral upper inwardly projecting, edge ribs 3 supported on metal beams 4 of the building frameworks. The ribs 3 have elongated slots 6 therein, which are located over dowels 5 welded to the beams 4. The slabs 1 have vertical edge grooves 9, (Fig. 3, not shown) in which glass fibre backing strips 10 are located between adjacent slabs, the strips being held in position by internal matic jointing forcing the strips against the outer faces of the grooves. Vertically adjacent slabs are located by loops, 16, integral with the slab reinforcement, projecting from the upper edges of the slabs into recesses 17 formed in the lower edges, the loops 16 also serving as slab hoisting points. A resilient sealing strip 15, (Fig. 2, not shown) is shule to the upper edge of each slab and to the lower edge of the slab above, and the upper and lower edges have downwardly sloping outer margins to assist drainage.
Patent GB-1278320-A (GB)
Title: Motion picture camera
Inventor: MARVIN EDGAR SAMUEL
IPC: G03B19/18
Filed: 1969-07-25
Abstract: 1278320 Cine-camera trigger mechanism EASTMAN KODAK CO 25 July 1969 [26 July 1968] 37401/69 Heading G2E A trigger mechanism for a cine-camera enables the camera to be set in a "run" condition wherein the trigger controls operation of the camera, a "lock" condition wherein the trigger is locked in its inoperative position, and a "continuous-run" condition wherein the trigger is locked in the operative position. On squeezing trigger 43 an end portion 39 of a spring 29 is urged clockwise to urge slide member 7 to the left thereby closing contacts 11 in the motor circuit and disengaging locking mechanism 17a from a gear-wheel 21. Trigger 43 pivots about shaft 41 and is attached at 68 to a plate 67 also pivotting about shaft 41. A pin 69 projects from one corner of plate 67 and during movement of the plate 67 on squeezing the trigger 43, pin 69 is engaged by a projection 71 of the slide member 7 thus halting the latter until pin 69 has moved above projection 71 when the member 7 is forcefully urged to the left by the stored energy in spring 29. On releasing the trigger the pin 69 again temporarily stops movement of slide 7 to the right. A cam (77), Fig. 4 (not shown) is moveable by knob 81 to three positions corresponding to "run", "lock" and "continuous-run". In the "lock" position a face (77c) of the cam (77) engages portion 49 of the trigger 43 thus preventing movement and in the "continuous-run" position Fig. 9 (not shown) plate 67 is held in the operative position by engagement of cam face (77c) with a projection 75 on plate 67.
Patent GB-1142798-A (GB)
Title: Improvements in or relating to electrical energy
IPC: H01M10/39
Filed: 1966-08-20
Abstract: 1,142,798. Modified beta-alumina; refractories; glass compositions. FORD MOTOR CO. Ltd. (Ford Motor Co). 20 Aug., 1966. No. 37421/66. Headings C1A, C1J and C1M, [Also in Division H1] Sodium beta-alumina slabs may be prepared by grinding or milling beta-alumina refractory bricks, adding Na 2 CO 3  or Al 2 O 3  powder of similar size to bring the concentration of Na 2 O to about 5 to 6% by weight of the mixture and hence to provide near stoichiometric composition for Na 2 O.11Al 2 O 3 , pressing the powder into pellets, sintering the pellets in the presence of a coarse powder of beta-alumina at a temperature of 1594 to 1816 C. for 5 minutes to 1 hour and slicing the sintered pellet into slabs. Alternatively, powders of Na 2 CO 3  and Al 2 O 3  are mixed in such proportions to provide a mixture equivalent to 60 weight per cent NaAlO 2  and 40% Al 2 O 3  the mixture heated to 1594 C. to form a molten eutectic which is cooled and the NaAlO 2  dissolved in water to leave the powdered sodium beta-alumina which is ground or milled, sintered and formed into a slab. Lithium substituted beta-alumina slabs may be prepared by immersing the sodium beta-alumina slabs in silver nitrate under a nitrogen atmosphere, followed by immersion of the resultant silver substituted slabs in liquid lithium chloride. Crystalline cylinders of aluminium oxidesodium oxide-magnesium oxide may be prepared by calcining basic magnesium carbonate to obtain MgO, mixing the MgO with finely divided Al 2 O 3  and a benzene slurry, evaporating off the benzene, firing the MgO-Al 2 O 3  mixture at 1427 C., mixing the resulting product with Na 2 CO 3  as a benzene slurry, evaporating off the benzene, firing the MgO-Al 2 O 3 -Na 2 CO 3  mixture at 1427 C., admixing the product with a wax lubricant and pressing into cylinders, removing the wax lubricant by heating and then sintering the cylinders at 1900 C. Glass compositions, for use in secondary batteries, having a high mechanical resistance to molten alkali metal contain (1) 47 to 58 mol. per cent of Na 2 O, 0 to 15, preferably 3 to 12 mol. per cent of Al 2 O 3  and 34 to 50 mol. per cent of SiO 2 , or (2) 35 to 65, preferably 47 to 58 mol. per cent of Na 2 O, 0 to 30, preferably 20 to 30 mol. per cent of Al 2 O 3  and 20 to 50, preferably 20 to 30 mol. per cent of B 2 O 3 . The glasses may be prepared by mixing the three oxides and firing the mixture at 1482 C. Examples 2 and 3 describe glasses of compositions falling within the above specifying ranges.
Patent GB-894145-A (GB)
Title: Polyoxyalkylene derivatives of castor oil
Inventor: LARBRE JEAN
IPC: C08G65/32
Filed: 1959-11-04
Abstract: Polyoxyalkylene ethers of castor oil and esters of ricinoleic acid which have been polymerized and/or oxidized by treatment in the hot state with air or gas containing oxygen are used either alone or in solution as hydraulic fluids.  Examples of solvents are alcohols, polyalcohols, ether alcohols, ketone alcohols, and their esters and ethers, specifically the monoethyl ether of diethylene glycol.ALSO:Polyoxyalkylene ethers of castor oil and polyoxyalkylene esters of ricinoleic acid are polymerized and/or oxidized by treatment in the hot state with a current of air or gas containing oxygen, preferably in the presence of an anti-oxidizing agent. Specified anti-oxidizing agents are 2, 4, 6-trialkyl phenols and amino-phenols, and they are used in concentrations of 0,1 to 0,0001%. The examples employ (1) and (2) polyoxyethylene ether of castor oil having a molecular weight of 1400, (3) polyoxypropylene ether of castor oil of molecular weight 1600, and (4) a diricinoleate of polyoxyethylene glycol of molecular weight 400.  The products are used as hydraulic liquids, either alone or as solutions in solvents such as alcohols, glycols, ether alcohols, ketone alcohols and their esters and ethers, the monoethyl ether of diethylene glycol being specified.ALSO:Polyoxyalkylene ethers of castor oil and polyoxyalkylene esters of ricinoleic acid are polymerized and/or oxidized by treatment in the hot state with a current of air or gas containing oxygen, preferably in the presence of an antioxidising agent. Specified anti-oxidising agents are 2,4-6-trialkyl phenols and amino-phenols, and they are used in concentrations of 0.1% to 0.0001%.  The Examples employ (1) and (2) polyoxyethylene ether of castor oil having a molecular weight of 1,400, (3) polyoxypropylene ether of castor oil of molecular weight 1,600, and (4) a diricinoleate of polyoxyethylene glycol of molecular weight 400.  The products are used either alone or in a solution as hydraulic liquids.
Patent GB-902929-A (GB)
Title: Improvements in electric dry cells and storage batteries
IPC: H01M10/05
Filed: 1958-11-21
Abstract: A porous lithium battery electrode may be made by dispersing molten lithium in heated kerosene and cooling, filtering and washing, the granular metal being then compressed.
Patent GB-368415-A (GB)
Title: Improvements relating to boiler and like safety valves
IPC: F16K17/04
Filed: 1930-12-13
Abstract: 368,415. Safety valves. TURNER, M. W. T., 84, Northgate, Almondbury, Huddersfield. Dec. 13, 1930, No. 37675. [Class 135.] A safety valve of the kind in which the valvelifting pressure is 'applied to a member out of the path of the escaping steam has a lift valve member 12 formed on one end of a closed-ended ported cylindrical member 3, the lifting pressure acting on the other end 9a. The ports 10, 11 are so arranged that the steam flows substantially radially into and out of the cylindrical member so that the steam flow has no influence upon the valve movements. In the form shown in the Figures the seat for the member 3 is formed in two parts, the part 7 carrying the seat for the lift valve while the part 8 is formed in a deflector 5 secured in position by screwed members 6 and fitted with a control pipe 9 leading to a quiescent part of the boiler. The two parts may, however, be formed integrally and the valve member may be secured by a spindle to a ported member having ports for the inlet only. A deflecting chamber 15 is mounted on the valve member and is held with its outlet 15a opposite the discharge orifice by a pin 16. The valve is loaded by a pair of springs 22 acting through toggle links 32, 33. The inner ends of the links engage an undercut abutment on a member 35 resting on a shoulder 14a on the loading spindle 14, and a similar abutment' on an adjustable member 20. The outer ends of the links engage abutments 31, 34 mounted on a yoke 27 and a member 28 respectively. The member 28 is secured to a yoke 24 carrying seats for the springs 22 the other ends of the springs engaging elements 26 coupled to the yoke 27 by bolts 25. The ends of the links are bifurcated and formed with inwardly directed hooks adapted to be engaged by recesses in securing members 38. The blow-off pressure is regulated by means of a screw 29 coupling the abutment 34 to the member 28 and the performance is modified by adjusting the abutment 20. An easing lever 21 is pivoted to the top of the loading spindle and turns about the end 20a of the member 20. The valve casing may be provided with diametrically opposed outlets or two or more valves may be arranged in a single casing.
Patent GB-925606-A (GB)
Title: Improvements in sugar cane crushing mills
IPC: C13B10/06
Filed: 1961-10-20
Abstract: 925,606. Sugar-cane mills. W. M. LIVIE. Oct. 20, 1961 [Oct. 31, 1960], No. 37782/61. Class 59. A sugar-cane mill comprises two or more spaced sets of crushing rollers, first means for feeding prepared cane to the inlet side of the first set of rollers, a closed shoot on the outlet side of each set of rollers adapted to receive the crushed cane from that set, second means for feeding crushed cane from each closed shoot to the next set of rollers, means for turning over the crushed cane at least partially during its passage from one set of rollers to the next and means for collecting expressed juice from the cane during and after its passage through each set of rollers. As shown in Fig. 1, sugar cane is fed to crushing rollers 23, 24 by means of conveyers 21, 22 and the crushed cane passes through a closed shoot comprising a top plate 56 and a bottom plate 60A, Fig. 17, which may be provided with one or more steps 60, the crushed cane being fed from the closed shoot to crushing rollers 28, 29 by means of a conveyer 25. The plate 60A may be replaced by a conveyer. Maceration fluids under pressure are supplied to the closed shoot through pipes 26, 27. The conveyer 25 is driven at slightly greater speed than the rollers 28, 29 so as, in conjunction with the step(s) 60 or the second conveyer, to turn over the crushed cane to assist in the further extraction of the juice therefrom. The conveyers 21, 22, 25 are provided with transverse gripping slats and are closed at the sides by vertical plates. The conveyers 21, 22 may be downwardly inclined. Further sets of crushing rollers have closed shoots and associated feeding means disposed therebetween. The crushing rollers are each provided with axially-spaced circumferential grooves. Expressed juice from the crushing rollers 23, 24 is collected in a trough 53, Fig. 11. The upper roller 23 is associated with scraper 56 and the lower roller 24 has juice grooves associated with a scraper. Means are provided for adjusting the spacing between the rollers of each pair of crushing rollers. In a modification, Fig. 3, the cane is fed to crushing rollers 33, 34, 35 and the crushed cane passes to a closed shoot 36 from which it is fed to crushing rollers 42, 43 by means of conveyers 40, 41.