baber/WOPTO huggingface dataset:
Patent GB-184506-A (GB)
Title: Improvements in and relating to electron discharge devices
IPC: H01J21/18
Filed: 1921-02-11
Abstract: 184,506. British Thomson-Houston Co., Ltd., (General Electric Co.). Feb. 11, 1921. Thermionic amplifiers.-In a three-electrode valve, the stream of electrons emitted from the incandescent filament 2 is given a high velocity by maintaining the grid 3 at a positive potential with respect to cathode 2, that portion of the electron stream which passes through the grid being then reduced in velocity by maintaining the plate electrode 4 at a negative or very low positive potential with respect to the cathode; a weak magnetic field produced in the space between the electrodes by a coil 9 is then capable of influencing the electron stream. The potential of the plate electrode 4 is lower than that required to produce secondary electron emission therefrom. For use as an amplifier, the current to be amplified is supplied to the winding 9, the amplified current being observed in a telephone 10.
Patent GB-961536-A (GB)
Title: Insulating plate
IPC: E04C2/288
Filed: 1959-05-07
Abstract: 961,536. Building slabs. E. CRABB, and L. CRABB. June 22, 1960 [May 7, 1959], No. 4994/64. Divided out of 961,133. Heading E1B. A slab 1 of expanded polystyrene to be used on walls or roofs and faced with plaster, cement, or concrete 3, is provided on one or both surfaces with channels 2 or with circular recesses to facilitate keying. The channels or recesses may be undercut and the channels in an embodiment extend diagonally across the slab.
Patent GB-777573-A (GB)
Title: Improvements in or relating to electric remote control, indicating and like follow-up systems
Inventor: BAMFORD DENBY CHADBURN
IPC: G08B9/00
Filed: 1954-02-20
Abstract: 777,573. Electric indicating systems. CHADBURNS (LIVERPOOL), Ltd. Jan. 18, 1955 [Feb. 20, 1954; April 15, 1954; Aug. 14, 1954], Nos. 5044/54, 11088/54 and 23701/54. Class 40(1). Relates to an electric remote-control or indicating system, e.g. an order-telegraph, of the type in which the transmitter comprises a commutator having a series of contacts connected together by resistors or inductors and connected to an A.C. supply, and brushes adapted to be moved over the contacts, the receiver comprising a polyphase winding connected to the brushes of the transmitter, the element of the receiver, i.e. rotor or stator, not connected to the brushes of the transmitter having a winding which is connected to the same A.C. supply. As shown, contact segments 29, 30, 31, are connected to equallyspaced tappings of an auto-transformer 18a, and contacts 32, 33, 34, are connected to their corresponding contacts 29, 30, 31, the segments 27, 28 being connected to a single-phase A.C. supply in series with the rotor 39 of the receiver. Brushes 35, 36, 37, which are moved together, co-operate with the segments. Resistors instead of inductors may be connected between the contact segments, and to obtain a large number of steps a resistor or inductor may be wound in the space between the main segments 27, 28, to allow the brushes 35, 36, 37, to bear in turn directly on the resistor or inductor. To reduce oscillation in the receiver an inertia weight may be fitted to the rotor, or a high-resistance shortcircuited loop may be provided at right-angles to the rotor winding. In a modification providing double the number of steps, Fig. 2 (not shown), each brush member of the transmitter carries two brushes connected by a resistor or inductor, a centre-tap on the resistor or inductor being connected to the appropriate winding of the receiver, the brushes being so arranged that one brush will span two contacts whilst the other brush is on one of the said two contacts. Specifications 650,691 and 672,710 are referred to.
Patent GB-1453683-A (GB)
Title: Raster correction circuit
IPC: H04N3/233
Filed: 1974-02-04
Abstract: 1453683 Cathode-ray tube circuits RCA CORPORATION 4 Feb 1974 [5 Feb 1973] 05115/74 Heading H4T In a side pincushion distortion correction circuit a D.C. voltage is derived from a winding on the line output transformer and employed as the operating potential for the output stage of the vertical deflection circuit so that the loading effect on the transformer varies the line deflection current in a parabolic manner and thus produces the required correction. In carrying the invention into effect the circuit of Fig. 1 (which is identical to Fig. 1 of Specification 1,343,941) is modified by replacing the pincushion correction circuit 70 by the circuit shown in Fig. 4. Thus, an additional winding 67 is provided on the line output transfer 60 to provide via a rectifying circuit including a diode 105 and integrating capacitors 106, 119, a D.C. voltage which is employed as the operating potential for the vertical deflection output stage comprising transistors 108, 109, driving the vertical deflection yoke 113. The base of transistor 109 is supplied with a sawtooth drive current 116 from the driver stage of the vertical deflection circuit 22 (Fig. 1) and causes this transistor conducts during the first half of the trace interval, transistor 108 being non-conducting. Current then flows from capacitor 114 (previously charged during the second half of the previous trace interval), through yoke 113 resistor 111, transistor 109 and resistor 112 to ground and during the second half of the trace interval transistor 108 conducts, transistor 109 is non-conducting and current flows from diode 105 and capacitor 106, transistor 108, resistor 110 and yoke 113 to positively charge capacitor 114. Waveform 117, shows the normalized current which is drawn from the power supply including the diode 105 and waveform 118, which approximates to a parabola, shows the voltage at the collector of transistor 108. Transformer 60 is thus loaded in a parabolic manner and so produces the required correction.
Patent GB-114489-A (GB)
Title: Improvements in or relating to Reversing Devices for Internal Combustion Engines provided with Electrical Ignition.
Inventor: HALLBERG AXEL GOERAN
IPC: F01L13/00
Filed: 1917-04-12
Abstract: 114,489. Hallberg, A. G. April 12, 1917. Reversing. - An ignition - timing lever is adjusted to its position for late firing in the opposite direction of running; t h i s breaks the ignition circuit and slows down the engine, when, at a certain speed, a centrifugal device closes again the circuit and premature ignition reverses the engine. Two forms of apparatus are shown applied to an outboard motor. The timing lever 3 carries one terminal 31 of the interrupter switch, the other terminal being on the hub of the fly-wheel 33. The igniting current is conveyed by the contacts 29, 23, 22, 25 to the binding screw 28. The contact strips 22, 23 are mounted on a drum 21 which is turned about a pin 20 on a movement of the lever 3 past its central position in consequence of a lever 41 on the drum engaging a fixed stop 46. The turning of the drum breaks contact between the brushes 29, 25 and the strips 22, 23, and the drum is secured in its new position by a detent inside it. As the speed of the engine decreases, a centrifugal weight 49 on the fly-wheel moves towards and ultimately depresses a pin 40, thereby releasing the detent and allowing a spring 34 to return the drum to its normal position and close again the igniting circuit, when a premature ignition reverses the engine. A stud 27 allows the circuit to be broken by hand. In a modification, the circuit is broken by a hand-lever mounted on the lever 3 when the latter is moved for reversing; the hand-lever is automatically locked by a spring detent which is released by a centrifugal device as described above. In this form, the interrupter contacts are near the rim of the fly-wheel.
Patent GB-865579-A (GB)
Title: Control mechanism for gear boxes
Inventor: POOLE HARRY
IPC: F16H59/04
Filed: 1959-02-14
Abstract: 865,579. Change-speed control. AUSTIN MOTOR CO. Ltd. Oct. 14,1959 [Feb. 14, 1959], No. 5225/59. Class 80 (2). [Also in Group XXV] In a motor car, a steering- column mounted ratio-shift lever 1 is supported by means of a bearing comprising a frustospherically surfaced bush 3 slidable along the lever and coacting with a similarly shaped socket 4 in a bracket 5, the bearing permitting the ratio-shift lever to be pivoted to positions 1A, 1B to select third and fourth ratios, and reverse, respectively, by sliding axially a rod 6 connected to a change-speed gear (not shown), the end of the ratio-shift lever itself sliding in a trunnion 16 passing through the arms 15 of a fork at the end of the rod, the bracket 5 turning about the axis of the rod 6 when the ratio-shift lever is pulled in-andout of the plane of the Figure and the rod 6 is turned to establish a selected ratio. In the position shown, the ratio-shift lever 1 selects first and second ratios in the change-speed gear. A compression spring 21 between the bush 3 and a tabbed washer 18, 19 biases the ratio-shift lever 1 rightwards, so that a chamfered collar 22 thereon engages the edge 23 of a recess in the bracket 5, to prevent the accidental establishment of reverse. To select reverse, the ratio-shift lever 1 is pulled leftwards of the Figure against the bias of the spring 21, until the chamfered collar 22 lies beyond the edge of the recess 23, when the ratio-shift lever can be pivoted upwards to the position 1B. A moulded resin casing 26 sur. rounds the forked head 15 of the control rod 6, and is secured to the bracket 5 by screws 27.
Patent GB-182434-A (GB)
Title: Improvements in or relating to electrical switch gear
IPC: H01H27/00
Filed: 1922-02-22
Abstract: 182,434. Metropolitan - Vickers Electrical Co., Ltd., (Assignees of Randall, K. C.). June 30, 1921, [Convention date]. High-potential switches; switch mechanism; interlocking with lids.-In high-potential ironclad switch gear of the cubicle type, the actuating devices both of the circuit-breaker and of the isolating switches are controlled bv means of key-locks and a single common key the removal of which from any lock is prevented except when the respective actuating device is in a predetermined position, thereby ensuring that the various switches shall be operated in the correct sequence only. As shown in Fig. 1, the main oil circuitbreaker in its separate cubicle 12 is actuated to the closed position through the linkage system shown, by the electromagnet 24, 30, and is released by tripping the latch 32 by means of the electromagnet 35, 36. The coils 24, 35 are controlled by a three-position hand-operated control switch 39 having releasing position (shown), neutral position and actuating position. In the releasing position the control switch is locked by a spring-actuated bolt 85 engaging a cut-away portion of the switch drum. The switch may be unlocked by means of a kev which draws back the bolt, thereby permitting rotation of the control drum to the neutral or actuating positions. In these positions, however, the key cannot be removed because it fouls a shoulder 92 on the bolt. The same key is employed to lock, in the open position, the exterior operating handle 77 of the tandem-connected isolating switches 58<a>, 59a. The handle lever carries a notched projection 94 with which a bolt similar to 85 engages. The casing has a hinged front 13 and back 14. The front is prevented from opening by the projecting handle lever when in the position corresponding to the on-position of the isolating switches. The operating linkage mechanism of the isolating switches includes a rectilinearly-moving rod 73 projecting through the back of the casing and carrying an exterior 75, whereby the back is locked closed until the stop is removed on opening the isolating switches.
Patent GB-1476903-A (GB)
Title: Light-transmitting devices
IPC: G02B6/44
Filed: 1975-02-07
Abstract: 1476903 Light guides F FORT 7 Feb 1975 [13 Feb 1974] 5264/75 Heading G2J An elongated light guide has two coaxial sheaths of polythene, the outer, which is reinforced by longitudinal glass fibres, having an internal diameter appreciably larger than the outer diameter of the inner sheath. The light conductor is free and unstretched inside the inner sheath, which is made by extruding the polythene about a light-conducting fibre and cooling the sheath rapidly to produce longitudinal shrinkage in it.
Patent GB-197444-A (GB)
Title: Improvements in temporary binders or loose leaf books
IPC: B42F13/04
Filed: 1922-02-23
Abstract: 197,444. Watt, R. J., and Spicer, J. L. Feb. 23, 1922. Flexible-band files; post files; covers.-Relates to loose leaf books of the kind described in Specification 168,818, in which straps 3 connected to one of the covers 6 pass through slots 2 in a pair of press bars 1 and through slots in the leaves and are connected to a movable cross-bar in the other cover. The bars 1 are of half-round material, part being removed adjacent to each slot 2 so that the top of the slotted portion is angled or flat, the edges being rounded off to prevent wear of the straps. Each cover 6 is formed with, or has attached thereto, a projecting part 4 extending about half-way over the bar 1 and curved to correspond therewith. Holes 14 are provided in the underside of each bar 1 to receive loose filing pins 15 of suitable size or of sections screwed together, the sheets being correspondingly perforated and cut away to clear the straps. The fixed ends of the latter are held by a bar 17 passing through U-shaped clips 16 riveted thereto.
Patent GB-1074945-A (GB)
Title: Improvements in or relating to foam deionisation apparatus
Inventor: WACE PETER FREDERICK
IPC: B01J47/10
Filed: 1965-02-08
Abstract: <PICT:1074945/C1/1> Ions are removed from solutions by foaming in a column having sections of turbulence in constrictions 2 and 4 where mixing between liquid from a preceding stage and foam takes place. Liquid is injected in a constriction section 4 and gas at the bottom well 3.  Liquid is removed at 9 and foam at 11.
Patent GB-267695-A (GB)
Title: Improvements in dyeing and printing cellulose esters
IPC: C09B1/36
Filed: 1926-02-25
Abstract: 267,695. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Feb. 25, 1926. Sulphamic acids; azo dyes. - Sulphamic acids obtained from coloured amino compounds are used for dyeing or printing cellulose esters; the latter may also be printed with the aid of sulphamic acids derived from dyestuffs containing at least one amino group, The following are specified :-the sulphamic acids from 1 : 4-diaminoanthraquinone, 1 : 5-diamino-4: 8-dihydroxyanthraquinone, and 1-amino-4-methosyanthraquinone; the sulphamic acid of the monoazo dyestuff from p-phenylenediamine and #-naphthol, obtained by treating p-nitroacetanilide with sodium bisulphite, splitting off the acetyl group, diazotizing and coupling with #-napbthol; and the sulphamic acid from 2: 4-dinitro-4<1>-aminodiphenylamine, obtained by condensing 2:4- dinitrochlorbenzene with the sodium salt of paminophenylsulphamic acid.
Patent GB-353379-A (GB)
IPC: F16G13/04
Filed: 1931-02-20
Abstract: 353,379. Chain wheels. MORSE, F. L., Ithaca, New York, U.S.A. Feb. 20, 1931, No. 5414. Convention date, May 8, 1930. [Class 80 (i).] In chain gearing, the sprocket wheel is provided with one or more grooves in its periphery, non-symmetrically disposed with reference to the central line thereof, to cooperate with correspondingly disposed guide links on the chain. The Figure shows an overhanging sprocket wheel 4 having two grooves 11, 14 disposed near the outer edge of the rim.
Patent GB-734372-A (GB)
Title: Improvements in or relating to gas-blast circuit breakers
IPC: H01H33/32
Filed: 1953-02-26
Abstract: 734,372. Fluid-pressure servomotor-control systems. ALLIS-CHALMERS MANUFACTURING CO. Feb. 26, 1953 [March 15, 1952], No. 5445/53. Class 135. [Also in Group XXXVII] The initial load on the fluid-operated contact-actuating mechanism of a gas-blast switch is reduced by providing an additional fluid motor with a relatively short stroke to crack open the blast valve, a second motor, such as a spring released by the main contact-actuating mechanism, then effecting substantially increased separation of the movable element of the valve from its seat. To open the switch, a solenoid 88 is energized to open a valve 25 so enabling gas to flow from a reservoir 6 through the valve 25 and a valve 29 to the cylinder 19 of the additional fluid motor. A piston 20 is then moved against the bias of a spring 22 to crack open the blast valve 104 and initiate the supply of blast gas to the switch contacts 7, 8. At the same time, the piston 20 through linkage 38, 39, 41 opens a valve 37 to admit gas to the " opening " fluid motor 45 and to the " closing " fluid motor 64. As the pistons 48, 66 of the fluid motors 45, 64 start to move, a valve 76 closes to shut off the supply to the motor 64, the initial starting impulse having been effected. The piston 48 through linkage 49, 50, 51 turns a shaft 31 to open the switch contacts. As the shaft 31 commences to turn, a cam 60 on the shaft releases a lever 61 which under the bias of a spring 62 fully opens the blast valve 104. Near the end of the opening stroke, the shaft 31 through linkage 51, 30 operates the valve 29 to dump the gas from cylinder 19 to atmosphere. The cam 60 then moves the lever 61 back to close the valve 104 and to re-stress the spring 62. To close the switch, a solenoid 105 is energized to open a valve 63 to admit gas to the motor 64 above the piston 66 which moves downwardly to turn the shaft 31 and close the contacts. During this closing motion, the cam 60 frees the lever 61, but the lever 61 is unable to move as the spring 62 is not strong enough to open the valve 104 against the gas pressure.
Patent GB-1111218-A (GB)
Title: Improvements in or relating to the production of composite metal strip suitable for the manufacture of bearings
IPC: B23K20/227
Filed: 1966-02-08
Abstract: 1,111,218. Making metal strip for bearings. REPCO Ltd. 8 Feb., 1966 [17 Feb., 1965], No. 5531/66. Addition to 940,924. Heading B3A. In a modification of the process claimed in Specification 940,924 for making a composite metal strip, a two-phase alloy of aluminium and a metal of lower melting point than aluminium replaces the aluminium-tin bearing alloy. The roll bonding of the alloy to the bonding layer of aluminium alloy containing little or no tin and subsequent bonding to steel strip is carried out at any temperature below the melting point of the eutectic of aluminium and the other metal, preferably at ambient temperatures. The other metal may be, for example, lead, cadmium, bismuth or indium.
Patent GB-1462071-A (GB)
Title: Method and 0vice for collecting blood
IPC: A61F13/20
Filed: 1974-02-07
Abstract: 1462071 Collecting blood samples L BUCALO 7 Feb 1974 05663/74 Heading A5R Blood is collected from a body cavity 12 in which it is naturally present, such as the vagina, or from a cavity in which it is present at the result of an illness or operation, such as a sinus passage, the interior of the mouth, the anal canal or the passage leading to the ear, by inserting into the cavity a device 14 comprising an ellipsoidal outer shell 16 of a metal or of a plastics such as polypropylene, polyethylene, polyvinyl chloride or polystyrene, formed in two halves 16a, 16b and retained together at flanges 17 by friction or an adhesive, the shell 16 having apertures 18 communicating with the interior 20 which contains cotton wadding, monofilamentary plastics, or fine gold wire. The blood is contacted by a blood preservative either located in the interior of the device or applied directly to the blood when the device has been removed from the body cavity. A number of the devices 14 may be incorporated into a tampon (30) Figure 5, (not shown). In a further embodiment, Figure 4 (not shown) the shell is tubular and closed at one end, blood entering the device through the open other end.
Patent GB-379631-A (GB)
Title: Improvements in and relating to the prevention of disturbances in thermionic anode bend detectors
IPC: H03D1/16
Filed: 1932-02-25
Abstract: 379,631. Valve detecting circuits. IDEAL WERKE AKT.-GES. FœR DRAHTLOSE TELEPHONIE, 97, Grosse Leegestrasse, Hohensch÷nhausen, Berlin. Feb. 25, 1932, No. 5696. Convention date, Feb. 25, 1931. [Class 40 (v).] In the circuit of an anode bend detector, hum due to stray fields picked up by the wiring is prevented by the provision of a small condenser 4 in series with the grid in conjuncton with a grid-leak 2 of a small value. The condenser is preferably not larger than 100 cms. and the grid leak is preferably less than half a megohm.
Patent GB-348240-A (GB)
Title: Improvements in and relating to brush shifting devices for dynamo electric machines
IPC: H02K23/18
Filed: 1930-02-20
Abstract: 348,240. Alternating - current commutator motors. BRITISH THOMSONHOUSTON CO., Ltd., Crown House, Aldwych, London.-(Compagnie Francaise pour l'Exploitation des Procedes Thomson-Houston; 173, Boulevard Haussmann, Paris.) Feb. 20, 1930, No. 5715. Addition to 318,977, [Class 35, Dynamo-electric generators &c.]. [Class 35.] A modification of the brush - rocking mechanisms for alternating - current commutator motors described in the parent Specification comprises two adjustable brush yokes and two yokeadjusting means connected respectively to two links pivoted to an operating member which is rotatable about an axis so positioned that when the member rotates, the angular velocity of one yoke decreases while that of the other increases over a portion of the range. In the form shown in Fig. 2, the brush yokes 1, 2 have toothed engagement with toothed wheels 17, 16 centred on a shaft 18 (or on two shafts more or less close together) and connected by pivoted links 4, 6 to the extremity 8 of the operating lever 9 which is pivoted at 10. Fig. 3 shows a form in which the toothed wheels 16, 17, Fig. 2, are replaced by discs 19, 20 connected to the brush rockers 1, 2 by pivoted links 21, 22. The discs may be replaced by simple cranks extending from 18 to 23 and 18 to 24, the links 21, 22 being pivoted at the points 23, 24 or at other points on the quadrilateral 8, 23, 18, 24. The links 4, 6 may be connected to different points on the operating crank 9 or to two separate cranks connected together, or, alternatively, to a single crank pin or to two separate pins arranged on the operating side 13 of the arm. A hand-wheel may be used for operating the arm and adjustment for modifying the brush displacement may be obtained by varying the lengths of the rods and cranks or the position of the points of articulation. Specifications 221,806 and 269,930, [both in Class 35, Dynamoelectric generators &c.], are referred to.
Patent GB-679806-A (GB)
Title: Improvements relating to devices for projecting pulverised material
Inventor: BUTCHER ALAN GORDON
IPC: B05B11/04
Filed: 1951-03-09
Abstract: 679,806. Powder distributers. ACME (SALES), Ltd. March 9, 1951, No. 5736/51. Class 18 A powder distributer comprises a casing 1 and a handle 7 connected together by a helical spring 8 enclosed in a bellows 4. Movement of the handle 7 causes oscillation of the casing 1 on the spring 8 such as 8 operate the bellows 4 and effect projection of pulverised material in the casing out through an aperture 11 in a detachable end cap 2. A filter 13 projects into the casing from the aperture 11.
Patent GB-1214126-A (GB)
Title: A container manufactured from fiber pulp
IPC: B65D85/32
Filed: 1969-02-03
Abstract: 1,214,126. Boxes. LEEUWARDER PAPIERWARENFABRIEK N.V. 3 Feb., 1969 [2 Feb., 1968], No. 5747/69. Heading B8P. A fibre pulp box for, for example, eggs comprises a plurality of recesses 1 having ridges 3, 4 formed therebetween. Some 4 of the ridges extend further from the recesses than the other 3 of the ridges and are so distributed that when two like boxes are stacked with one of the boxes turned at 180 degrees to the other, the ridges 4 engage the rear surfaces of the ridges 3 to form the only support therebetween.