baber/WOPTO huggingface dataset:
Patent GB-1319824-A (GB)
Title: Process and appliance for recording information on process data cards
IPC: G06K13/08
Filed: 1970-06-08
Abstract: 1319824 Card punching J-C KOURGANOFF 8 June 1970 [9 June 1969] 27508/70 Heading B4B [Also in Divisions B6 and G5] A method of recording information on receiving process data cards from a series or pile of master cards comprises superimposing each master card in turn on the receiving card, recording information on said receiving card from said master card, e.g. by punching holes in the receiving card with a pointed instrument, and returning the master card to said series or pile. Preferably the master cards are returned to the series or pile in a manner which ensures that the order of the cards is unaltered. The master cards may bear a number of questions or answers each matched by a guide hole, in which case holes are punched in the receiving card corresponding to chosen questions or answers. In an appliance for use in carrying out the method the master cards are stored in a tray 2. The top card is removed manually from the pile in the tray by sliding it over a partition 3 and guiding it by slides 4 on to a presentation table 9, Fig. 2, on which a receiving card is already supported. Information is then transferred from the master card to the receiving card by a pointed instrument which may have a pen at one end. The master card is then slid manually via guides 5 beneath the partition 3 and is guided into the bottom of the tray 2 by a sloping strip 12, Fig. 1. The master cards may be moved automatically from the storage tray to the presentation table, or vice versa. The master cards may be joined to form a continuous strip which is wound on a bobbin supported in the tray and is rewound on to a further bobbin after each card has been superimposed on a receiving card.
Patent GB-1388664-A (GB)
Title: Production of nickel powder from basic nickel carbonate
IPC: B22F9/00
Filed: 1972-06-13
Abstract: 1388664 Recovering nickel SHERRITT GORDON MINES Ltd 13 June 1972 [30 June 1971] 27690/72 Heading C7D Ni powder is produced from a nickel and cobalt bearing aqueous ammoniacal (NH 4 ) 2  CO 3  liquor containing Cu and at least one of Zn, Mg, Mn by the following process. Sufficient Co is removed from the liquor to give a molar ratio of Ni : Co of 100-200, whereupon the liquor is heated to drive off NH 3  and CO 2 , leaving a basic carbonates precipitate. This precipitate is repulped with H 2 O to form a slurry which is reduced to Ni powder in a pressure vessel, e.g. an autoclave, with H 2 , which continues until the molar ratio of Ni : Co in the end solution is between 0À5 and 1À0, and the pH is between 2 and 3. The pH can be corrected by additions of NH 3  and sulphate ions. The end solution can then be stripped of Co and the other impurities, but a portion is recycled and used to repulp the slurry prior to reduction. Before reduction, the slurry is adjusted to contain between 40 and 150 g/l of nickel and sulphate ions and NH 3 . The liquor is initially obtained from leading Ni ores, e.g. laterite. The reduction is preferably carried out in the range 80‹-350‹C and 100-500 p.s.i., and a number of reductions can be carried out successively, with periodic removal of Ni powder. Any S present may be oxidized to sulphates if desired prior to reduction.
Patent GB-246614-A (GB)
Title: Improvements relating to vapour electric rectifying apparatus
IPC: H02M7/06
Filed: 1924-11-19
Abstract: 246,614. Rowbotham, J. L., and Hewittic Electric Co., Ltd. Nov. 19, 1924. Vepour apparatus, arrangements of. -In vapour rectifying apparatus in which the voltage supplied to the rectifiers is regulated automatically according to the voltage at the direct current terminals, a variable resistance controlled by the load current is provided in the relay circuit of the voltage regulator so that the voltage may be caused to increase with load. The regulator comprises a tapped autotransformer 1 through which the rectifier is supplied and the contact arm 3 is adapted to be moved to increase or decrease the supply voltage by a motor 6, the field of which is connected across the direct current terminals 9 whilst the armature 7 is connected in a reversible manner through a controller 42 to the same terminals. The controller 42 is operated so as to start up the motor 6 in one direction or the other according to which of two coils 13, 14 is energized, the circuits of these coils being adapted to be completed bv contacts 20, 21 respectively. These contacts are controlled by series-connected coils 17, 18 connected across the direct current terminals 9 through a resistance 64 and a variable resistance 19. The arrangement is such that at any fixed load an increase or decrease of the direct current voltage energizes the appropriate coil of the controller 42 by the action of the coils 17, 18 so as to cause the motor 6 to move the contact 3 in the appropriate direction to restore the voltage to its original value. An increase in load, however, is adapted to cause the introduction into the circuit of the coils 17, 18 of a portion of the resistance 19 proportionate to the increase by the action of relays 54 - - 58 in the load circuit. The resulting decrease of current in the coils 17, 18 causes the motor 6 to be started to increase the voltage according to the increase in load. According to a modification, a similar result is secured by employing for the resistance 19 a material of high positive temperature coefficient and surrounding it by a heating coil in series with the load circuit. Alternatively, a liquid resistance adapted to be varied with the load may be employed. in order to ensure that, when the motor is started, it shall continue to rotate until the contact 3 has been moved from one tapping to the next a conducting drum 36 adapted to bridge the contacts 20, 21, except when the insulating portion 37 occupies the position shown, is provided on the motor shaft. The motor circuit is also adapted to be interrupted at the contacts 27, 47 when the contact 3 reaches the limits of its travel, and a braking resistance 43 adapted to be connected across the armature when the controller is in the neutral position, is also provided.
Patent GB-238426-A (GB)
Title: An internal check action to a spring blind roller
IPC: E06B9/90
Filed: 1924-11-19
Abstract: 238,426. Tutty, R. H. Nov. 19, 1924. Roller blinds, spring.-A hollow blind roller 6, with the usual operating spring 11 at one end thereof, is provided at the other end with a stem 12, held from rotation by its squared end 13 and having loosely mounted thereon a sleeve 15 maintained in frictional engagement with an enlargement 16 of the stem by a spring 20 adjusted by nuts 19. A spring 27 connects the sleeve 15 to another sleeve 14 secured to the roller 6, the arrangement being such that when the blind is pulled down the sleeve 14, in rotating, tightens the grip of the spring 27 upon the sleeve 15 which is thereby rotated against the frictional resistance due to the spring 20, which resistance is so proportioned with respect to the weighted end 5 and the operating spring 11 that the blind remains down when the pull is released. On raising the weighted end 5, the spring 11 rewinds the blind, the rotation of the sleeve 14 in this direction loosening the grip of the spring 27 upon the sleeve 15 which remains stationary. Leather &c. friction washers 18, 23, and 24 may be provided.
Patent GB-1450299-A (GB)
Title: Storage battery chargers
IPC: H02J7/00
Filed: 1974-06-21
Abstract: 1450299 Automatic current and voltage control ESB Inc 21 June 1974 [12 July 1973] 27742/74 Heading G3R [Also in Division H2] In a battery charger, a voltage comparator 40 has one input connected to a voltage reference 50 and the other input connected to the charger output 30, the comparator 40 producing a first reference signal indicative of the resultant of its inputs, a current reference device 60 for transforming the first reference signal into a second reference signal whose magnitude is related to that of the first signal in accordance with a predetermined charging program, a current comparator 70 comparing the second (current) reference with a third signal responsive to charging current and producing a resultant signal which controls means 14 to vary the charging current until the second and third signals are equal thus causing the charging current to equal the required current called for by the current reference in relation to the battery voltage. The charger is preferably arranged to charge firstly with a constant current until the battery voltage reaches a predetermined level when the charging continues at substantially constant voltage until a second predetermined current is reached when the battery is charged at a lower constant current for a predetermined period. The charger has a current adjuster 14, e.g a magnetic amplifier the output of which is controlled in dependence on the relationship between the measured current and a current reference 60. The battery voltage at AH is compared by amplifier U3 with a voltage reference 50, the resulting difference being used to modify the current reference 60 so as to provide a high or low constant charging current. As described, the battery voltage at AH is compared in amplifier U3 with a voltage reference derived from a Zener diode VR3. A current reference 60 is also derived from the Zener diode VR3 and is arranged so that when the battery voltage is less than 2À36V/cell diode CR7 is reverse biased and amplifier Ul arranges transistor Q1 and the magnetic amplifier 14 to provide 18A/100AH. When the battery voltage exceeds 2.3V/cell, diode CR7 becomes conductive so that the output of amplifier U3 modifies the current reference 60 so that the battery is charged at 4À5A/100AH. The higher battery voltage turns on transistors Q2, Q3 which energize a relay K1 which starts the timer (not shown) so as to turn off the charger after 3 hours. Modifications. The charging and control current may be derived from a three-phase bridge rectifier CR1...CR6 or from a motor/generator or from a D.C. supply. The magnetic amplifier 14 may be replaced by a saturable reactor, motor-driven rheostat, motor-driven autotransformer, or a transistor or thyristor controller.
Patent GB-683729-A (GB)
Title: Improvements in or relating to variable pitch propellers
IPC: B64C11/38
Filed: 1950-11-14
Abstract: 683,729. Variable-pitch propellers. UNITED AIRCRAFT CORPORATION. Nov. 14, 1950 [Nov. 23, 1949]. No. 27788/50. Class 114. A lock is provided to prevent pitch change if the control device and the blade get out of phase. A spring pressed ring 244 is prevented from rotating in the hub but has notched teeth to engage the gear 226 connected to the blade. These teeth are held out of engagement by hydraulic pressure which passes through the control valve 150 from the pump 86. If the blade position and the valve become out of phase the pressure fluid supply is stopped and the springs 270 bring the blade back into operation. Specification 569,799, [Group XXVI] and U.S.A. Specifications 2,462,931 and 2,462,932 are referred to.
Patent GB-304363-A (GB)
Title: Improvements in or relating to diaphragm sound boxes for use with gramophones
IPC: H04R7/04
Filed: 1927-10-20
Abstract: 304,363. Ashwell, E. W. Oct. 20, 1927. Diaphragms, vibratory. -A circular diaphragm 4 for use in a gramophone sound-box is made of thin wood, such as " Sapele " mahogany 1/35in. to 1/40 in. thick, and is treated with glue which is forced into the wood by heated irons or otherwise. The disc is then pierced with a central hole 17 and rubbed with sand paper to remove surface glue. A diamond-shaped bar 19, tapering in thickness at both ends 20, 21 as shown in Fig. 4, is glued on to the disc 4 at right angles to the grain of the latter. The disc 4 and bar 19 are then clamped under a thin wooden cover 27, Fig. 7, on to a block 26, having a, convex surface, till the glue has set; thus the disc. 4 is temporarily curved to the shape of the block 26. The disc 4 and bar 19 are then treated on both sides with French polish, a " wood filler," gold size, bronze paint and a coat of polish. The disc when finished has resumed its flat condition. The stylus-bar of a gramophone sound-box of known construction, Figs. 8, 9. 10 (not shown), is attached to the central point of the bar 19, which covers the hole 17 so as to form a circular recess.
Patent GB-242447-A (GB)
Title: Improvements in means for drawing straight lines, parallel lines, dotted lines, angles and circles, on vertical or inclined surfaces
IPC: B43L9/04
Filed: 1924-11-21
Abstract: 242,447. Barker, A. W., and Chapman, A. H. Nov. 21, 1924. Rulers; beam compasses; dotting-appliances.- An instrument for drawing on vertical or steeply sloping surfaces comprises a paralled ruler A mounted on graduated rollers A' and carrying a bubble clinometer D rotatably mounted in a graduated ring E. The ruler can thus be adjusted on the drawing surface for ruling a number of parallel lines either horizontally or inclined to the horizontal at any desired angle. The ruler is also provided with means enabling it to be used as a beam compass. As shown in Fig. 2 the ruler rotatably carries a ring F provided with cross wires H, the intersection of which represents the centre of the circle to be drawn; the ruler is also provided with a number of apertures J through any one of which a pencil &c. K can be passed. Alternatively, a centre point and a pencil &c. may be carried by clamping members which can be adjustably secured to the ruler. For drawing dotted &c. lines a notched plate, Fig. 4, may be hinged or otherwise attached to the ruler.
Patent GB-963331-A (GB)
Title: Improvements in or relating to the manufacture of briquettes
Inventor: CUMMINGWORTH DONALD EDWARD
IPC: C10L5/14
Filed: 1959-08-14
Abstract: In a method of briquetting particulate metallic ores, e.g. a zinc ore or a mixture of a metallic ore and coal the particulate material is mixed with a binder comprising waste sulphite lye and an amylaceous substance, preferably starch, and briquetted, the resulting briquettes being heated at a temperature between 150 DEG  and 330 DEG C., preferably between 250 DEG  and 275 DEG  C., for a period of 45 minutes to 3 hours, preferably for 85 to 65 minutes. The binder content of a briquette may be from 0.5% sulphite lye and 0.25% starch up to 5% sulphite lye and 5% starch, all by weight. Other binders such as farinaceous substances or silicates may be incorporated in the binder.ALSO:In a method of briquetting particulate fuels, e.g. coal, the material is mixed with a binder comprising waste sulphite lye and an amylaceous substance and briquetted, the resulting briquettes being heated at a temperature between 150 DEG  and 330 DEG C. for a period of 45 minutes to 3 hours.  The preferred amylaceous substance is starch and the preferred heat treatment is at 250-275 DEG  C. for 85 to 65 minutes.  The briquettes may contain as binder 0.5% sulphite and 0.25% starch up to 5% sulphite lye and 5% starch, all by weight. Other binders such as farinaceous materials and silicates may be incorporated in the briquette. The fuel briquetted may also comprise coke or oxidized coal.
Patent GB-1234962-A (GB)
Title: Improvements in vehicle couplers
Inventor: SLAVEN JOHN GREENWOOD
IPC: B62D53/10
Filed: 1968-06-12
Abstract: 1,234,962. Fifth wheel couplings. J. G. SLAVEN. 9 June, 1969 [12 June, 1968], No. 27858/68. Heading B7T. A fifth wheel coupling comprises a slotted plate 1 having pivoted thereto at 5 a U-shaped member 4, an arm 28 of the member being contacted by a king pin 3 which enters the slot to pivot said member from the Fig. 3 position to the Fig. 2 position in which latter position it embraces said pin, the arm 28 on pivoting contacting a two armed lever 22 which in turn contacts a two-armed latch member 21 which releases a bolt 14 into the Fig. 2 position thus preventing pivoting of member 4 and locking the king pin in the slot. The member 4, lever 22 and latch 21 are all biased in an anticlockwise direction by springs 8, 27 and 26 respectively, spring 27 being weaker than spring 26. The bolt 14 is biased by a spring 15 into its locking position and may be positively retained in said position by a latch 17. The pin 3 is freed by withdrawing bolt 14 using handle 19. Abutments 12b and 30 limit the pivotal movement of member 4 and latch 21 respectively, and abutments 12a and 12b guide the bolt 14 on to its locking position. (For Figures see next page.)
Patent GB-298634-A (GB)
Title: Improvements in and relating to means for reforming the bores of rock drills and other hollow articles
IPC: B21K5/06
Filed: 1928-09-28
Abstract: 298,634. Ingersoll-Rand Co., (Assignees of Bayles, L. C.). Oct. 14, 1927, [Convention date]. Forging rock-drills ; perforating by forging.-A machine for reforming the bores of roch-drills &c. has means for removing the drift after the perforating operation. The frame A of the device is bolted at B, for example, to a drill sharpening machine and carries guides C and T. The end closure F of the hammer cylinder has an extension E sliding in the guide C. In operation the drill to be drifted out is pressed against the punch b, pushing a collar h on the anvil against the cylinder end or against the end of a bush W secured therein, and so causes the cylinder to slide rearwardly in the guide C compressing the spring D' and opening the throttle valve J by contact with an adjustable pin S. When the bore is enlarged as required the pressure in the drill is released and the spring D<1> advances the cylinder and permits the valve to close. The drill is now pulled forwards smartly, causing the collar h to traverse the clearance space in the guide T, and the resulting impact on the end k frees the punch from the drill.
Patent GB-635899-A (GB)
Title: Improvements in and relating to a.c.í¬d.c. telemetering systems
IPC: G08C19/00
Filed: 1946-09-19
Abstract: 635,899. Electric indicating systems. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 19, 1946, No. 28140. Convention date, Sept. 22, 1945. [Class 40 (i)] The transmitter in a telemetering system comprises a linearly movable transformer core carrying a stationary primary winding and a plurality of fixed secondary windings connected respectively in series with the coils of a D.C. type ratio-meter and individual rectifiers. As shown, Fig. 1, a magnetic core member 3, moved linearly by a pressure or other sensitive device 2, links the stationary transformer primary 4 successively with the secondary coils 10, 11, 12 during its movement. The secondaries 10, 11, 12 which are circumferentially spaced around the axis 1 so that their poles may overlap, Fig. 2 (not shown), are series connected to the respective coils 16, 17, 18 of a ratio-meter 21 and rectifiers 20, the ratio-coils surrounding a diametrally polarised armature 19 which rotates in accordance with the linear movements of the core 3. By shaping the polepieces of the coils 10, 11, 12 the law connecting the linear and rotary motions may be varied as desired. The number of secondary coils traversed by the linearly moving core 24, Fig. 4, may be increased and connected in multiple to the receiver coils as shown, so that the receiver pointer 22 rotates a plurality of revolutions for one sweep of the moving core 24, the revolutions of the pointer 22 being indicated by a pointer 22a geared thereto. The rectifiers may be arranged in any position in the series circuits in question. Full wave rectification may be employed, Fig. 5 (not shown), although half-wave as shown is more advantageous. In Fig. 6, two transmitter cores 53, 54, energized in phase by their series connected windings, are both movable linearly in parallel directions past the secondaries 55, the receiver in this case indicating the average or mean position of the cores. The Specification as open to inspection under Sect. 91 describes an embodiment, Fig. 5 (Cancelled) in which the transformer core comprises diametrally opposed pole pieces 35A at opposite ends of a short shaft embraced by the stationary primary coil 35. The secondary coils are connected through respective triode rectifiers 36 to the corresponding coils of one or more receivers 38, 39 in parallel. This subject-matter does not appear in the Specification as accepted.
Patent GB-645596-A (GB)
Title: Improvements in or relating to devices for dispensing tape
IPC: B65H35/00
Filed: 1948-10-29
Abstract: 645,596. Roll holders. HANCOCK, CORFIELD, & WALLER, Ltd., and CORFIELD, R. H. Oct. 29, 1948, No. 28155. [Class 18] The arms 1 of a U-shaped frame, adapted to be sprung apart to support a roll of adhesive or other tape on inwardly directed bosses 4 formed in the arms, are held against lateral movement when the roll is mounted by a detachable plate 13 extending between edges of the arms. The plate may either be formed to slidably engage beading 12 on the lower edges of the arms or to clip over these edges. Alternatively, the plate may engage the beaded edges 10 of the arms opposite to the end wall 2 connecting the arms 1. The end wall 2 may be suitably ribbed as at 3 to reinforce the wall and a serrated cutter 9 may be formed on the upper edge of the wall.
Patent GB-860738-A (GB)
Title: Improvements in or relating to x-ray tubes
IPC: H01J35/10
Filed: 1959-08-18
Abstract: In the manufacture of the material from which an anode disc for a rotating anode X-ray tape is made, a layer of powdered tungsten is introduced into a suitable die together with oxides, nitrides, carbides, borides or silicates up to an amount of 0.5%.  The preferred additives are potassium silicate and aluminium oxide which preferably amount to 0.2-0.5% of the total material.  A layer of pure tungsten is then added to the die and the powder is compressed, sintered and subsequently worked mechanically, and the component to be worked is repeatedly heated during those operations. Alternatively the compounded layer is sandwiched between two pure tungsten layers to reduce the possibility of undesired evaporation of the additives.  The compounded layer is stated to have a reduced crystallization rate with respect to that of pure tungsten at the same temperature.
Patent GB-1014906-A (GB)
Title: Electrical snap-action switch
IPC: H01H13/28
Filed: 1963-07-18
Abstract: 1,014,906. Retractive switches. CHERRY ELECTRICAL PRODUCTS CORPORATION. July 18, 1963 [March 1, 1963], No. 28394/63. Heading H2B. A snap-action switch similar to that of Specification 911,805 with a switch blade 31 pivoting about pivot posts 24 has a cross-piece 25 joining the posts, and the coil spring 38 has an elongated neck 40 extending beneath the cross-piece (see Figs. 4, 5, not shown). The actuating lever 52 has projections 55 for engaging detents 54 to provide alternative positions for the actuating lever to engage the actuator 46 and move the spring 38 over centre.
Patent GB-814329-A (GB)
Title: Improvements in and relating to links and linked structures
IPC: F16G13/00
Filed: 1956-09-17
Abstract: 814,329. Jewellery. BURFORD, W., and BUNCH, D. C. Sept. 17, 1956, No. 28415/56. Class 43 [Also in Group XXV] A link for a linked structure comprises an apertured flat disc 18 of resilient thermoplastic material connected by a thickened arm 21 to a flanged plug 22 which is pressed into engagement with the aperture 19 of a similar link a flange 24 of the plug and periphery of the aperture flexing axially. The circular plug has lower and upper flanges 23, 24 which engage, the periphery of an aperture. The plugs and apertures may have various shapes such as square or elliptical. A link may carry additional arms with a plug or aperture. Two links may be combined to form one link by uniting the apertured discs. The aperture of a link may have an integral dome-shaped cover. Links comprising two plugs or apertured discs joined by an arm may be combined with the other links The shank of a plug may be lengthened to accommodate more than one apertured disc.