baber/WOPTO huggingface dataset:
Patent GB-1456453-A (GB)
Title: Phase locked oscillators
IPC: H03L7/089
Filed: 1974-01-31
Abstract: 1456453 Automatic phase control systems INTERNATIONAL BUSINESS MACHINES CORP 31 Jan 1974 04506/74 Heading H3A A phase locked oscillator circuit comprises: a V.C.O. 1 controlled by an incoming signal at 2 consisting of a pulse train of lower frequency than that of the V.C.O.; a divider 6, 7, 8, 9 dividing the V.C.O. output frequency down to that of the incoming frequency; a phase comparator 15, 22, 27 producing an error signal indicative of the phase difference between the two signals which is stored in a store 24 having a predetermined decay rate and which is applied to the V.C.O. 1 to correct the phase error; and means (not shown in Fig. 1) responsive to phase errors in excess of a predetermined amount to produce a signal at terminal 11 which holds the divider in a reset condition until a subsequent input pulse to reduce the phase error. As described, the divider chain 6, 7, 8, 9 produces outputs at frequencies F/8 and F/16, Figs. 2c, 2e the latter being at the frequency of the received pulse signal, Fig. 2b. If the positive going portion of the signal 2e lies within the " window " defined by the negative going portion of signal 2b it is compared with signal 2c and with a delayed version of it, 2d to produce late pulses 34 or early pulses 48, Fig. 2f, depending on the relative timing of the oscillator and clock signals. These late and early pulses charge or discharge a capacitive store to produce an error correction voltage 2g. If the signal 2e drifts outside the window, logic circuitry, Fig. 6 (not shown) produces an output which resets the dividers to bring the two signals back into phase. In order to prevent false operation, the logic circuit does not produce the necessary control unless two successive pulses fall outside the window. Also provided is means for detecting missing clock pulses, Fig. 4 (not shown) and this provides a further input to the logic circuit of Fig. 6 to cause resetting of the dividers.
Patent GB-281509-A (GB)
Title: Grain cleaning machinery
IPC: B07B1/20
Filed: 1927-02-18
Abstract: 281,509. Blackden, P. D. Feb. 18, 1927. Fixed sieves; rotary sieves; sieves with compound motion. - Apparatus for cleaning grain by the removal of beards, hulls, foreign seeds and water, comprises a rotary screen which is mounted for universal movement at one end and is actuated by an eccentric at the other end, so as to have simultaneous jogging and rotary movements. In the apparatus described, the grain is fed into a frustoconical chamber 12, the bottom half 14 of which is formed of perforated sheet or other mesh material. A drum 20 with helical flights 26 is mounted within the chamber 12 on a shaft 22 and advances the grain to the shoot at the same time removing beards and hulls and forcing the small impurities through the sieve 14. The position of the drums 20 in the chamber is adjusted axially by means of the hand-wheel 34 acting on the bearing sleeve 31 to which the shaft 22 is secured so as to allow rotary, but not endwise, movement. The materials passing through the sieve 14 are delivered by the conveyer 46 and shoot 50 into the chamber 51 containing the rotary sieve 55. The grain passing from the chamber 12 is subjected to further cleaning action in the interior of the sieve 55. which is preferably of frusto-conical shape and has at one end a universal connection to a hollow shaft 62 and at the other end a strap 66 actuated by an eccentric on a shaft 63. The shafts 62, 63 are driven independently from the main shaft 41 through suitable chain and sprocket gearing. A screw-conveyer 76 discharges the materials passing through the sieve 55, while the cleaned grain discharges into the shoot 80.
Patent GB-1209966-A (GB)
Title: Synthetic resin fastener
Inventor: ISHMATSU HEIHACHI
IPC: B65D33/25
Filed: 1968-01-29
Abstract: 1,209,966. "Rib and groove" type fastener. HIGH POLYMER CHEMICAL INDUSTRIES Ltd. 29 Jan., 1968, No. 4566/68. Heading E2S. A synthetic resin fastener of the "rib and groove" type comprises a female talon A with opposed hooked projections 6, 7 of different lengths and a peaked ridge 5 inclined towards the longer projection, and a male talon B with corresponding hooked grooves and valley like groove for fitting engagement of said female talon. When attached to a synthetic resin film bag the longer hooked projection 6 is disposed towards the inside of the bag (to the right in Fig).
Patent GB-484429-A (GB)
Title: An improved process and apparatus for separating magnesium, beryllium, and like metals which distil from their ores and compounds
IPC: C22B26/22
Filed: 1937-02-16
Abstract: Magnesium and other metals capable of being distilled are obtained from their ores or compounds by packing a mixture of the ore &c. and a solid reducing agent round an electrically conductive primer and heating the whole under reduced pressure by induced currents at a frequency of 600-10,000 cycles per second, preferably about 2,200. The primer is preferably metallic, such as pig iron, ferrochrome, or a wrought iron pipe, and the reducing agents may be carbon, coke, silicon, ferrosilicon, aluminium, calcium, or their alloys, or calcium carbide.  The apparatus may be that described in Specification 466,763, subject to the use of a suitable generator of the required frequency.
Patent GB-1512938-A (GB)
Title: Dispensing container
IPC: B65D83/04
Filed: 1977-02-04
Abstract: 1512938 Dispensing containers A VON SCHUCKMANN 4 Feb 1977 [25 Aug 1976] 04717/77 Heading B8P A container, e.g. for dispensing tablets 2 one at a time comprises a discharge opening 4, two discharge ducts 5, 7 or 14, 22 and a dispensing control slide 6 or 23, the slide 6 or 23 moving freely in the duct 5 or 22 on inverting the container to allow a dose, e.g. one tablet 2<SP>1</SP> to be discharged. An internal storage space has guide surfaces 10 or 18 which guide the tablets 2 into the first discharge duct 7 or 14.
Patent GB-273242-A (GB)
Title: Improvements in or relating to foot-cleaning mats
IPC: A47L23/26
Filed: 1927-02-19
Abstract: 273,242. Hoogeweg, W. J., and Oven, E. van. June 25, 1926, [Convention date]. Mats.-A device for cleaning the soles of footwear comprises a grid-like frame 1 provided, between the bars 2 of the grid, with poweroperated reciprocating devices 4. At each end of the frame is located a housing 3 containing two shafts carrying gear wheels 12, 13 and a number of chain wheels 16, 17. The gear wheels are driven through crank mechanism, by a motor, for example an electric motor. The cleaning devices consist of brushes fixed upon bands 5 which are connected to short chains 18 in turn connected to wires 20. The chains engage the chain wheels 16, 17, which may be in staggered relation, as shown, so that the directions of movement of each two succeeding brushes may be opposite to one another. The brushes may be replaced by rubber wipers
Patent GB-676820-A (GB)
Title: Instrumentation and control systems for aircraft
Inventor: MEREDITH FREDERICK WILLIAM
IPC: B64D45/00
Filed: 1950-02-24
Abstract: 676,820. Indicators for aircraft. SMITH & SONS, Ltd., S. Feb. 26, 1951 [Feb. 24, 1950], No. 4776/50. Class 4. An automatically stabilised aircraft is provided with a primary indicator arranged to display to the pilot information which is substantially continuously required for control of the aircraft under given conditions, means under the control of the pilot being included whereby the information fed to the indicator may be selected according to the conditions under which the aircraft is to be controlled. In the system shown for a fighter aircraft the primary indicator consists of a cathode ray tube 2 connected to a selector switch 10, by the adjustment of which information from instruments and navigational devices may be displayed upon the screen of the tube 2. The switch 10 has six positions for use during taking-off, climbing, interception, air-to-air radar contact, return to base, and landing respectively. During take-off the compass 17 is connected to the indicator 2, and a signal in accordance with deviation of the aircraft from the runway heading is applied to the indicator. At the commencement of the climb the switch 10 is moved to the second position, when an additional signal from a pendulum monitor 19 in accordance with deviation from the desired climbing angle is fed to the indicator. During interception signals from the compass monitor 17 and altimeter 30 are fed to the indicator. When air-to-air radar contact has been established the radar tracker 34 and the gunsight aim-off corrector 38 or target range indicator 41 are connected to the indicator. During the return to base information is fed to the screen from the radio beam receiver 21 and altimeter 30, and during landing from the receiver 21 only, the throttle being set automatically upon operation of the selector switch to the correct position for gliding approach, instead of being automatically controlled by the airspeed indicator 32. A secondary indicator, such as a warning light 39, may be operated by a tachometer, thermometer or like instrument under abnormal conditions reduring the attention of the pilot.
Patent GB-237181-A (GB)
Title: Improvements applicable to corset busks
IPC: A41F1/04
Filed: 1925-02-21
Abstract: 237,181. Gamble, M. L. Feb. 21, 1925. Stud-and-slot fastenings.-A device for locking the stud and slot fastenings of corset busks comprises a plate A elastically connected to the corset by a continuous rubber band C and having a keyhole slot a therein, adapted, when the band C is stretched, to be slipped over the head of the uppermost or other stud of the busk fastening and lock it. The band C is connected to the corset by a wire stirrup L, and may be detached from the plate A through an opening b<2> in the slot b<1> in which it is normally engaged. A piece of wire bent to the desired outline may be employed in place of the plate A.
Patent GB-576643-A (GB)
Title: Improvements in treads of pneumatic tyres
IPC: B29C35/02
Filed: 1944-03-16
Abstract: 576,643. Tyre treads. UNITED STATES RUBBER CO. March 16, 1944, No. 4922. Convention date, June 16, 1943. [Class 144 (ii)] [Also in Group V] The abrasion resistance of pneumatic tyres is increased by partially vulcanizing the tread, compressing the tyre in a direction parallel to the tread surface and allowing it to expand in a direction normal to the tread surface, and heating to produce a permanent extension after release of the compressive force. For example, a tyre. 10 with tread ribs 16 is cured at 30 lbs. steam pressure for 50 minutes, and placed in a mould 18 having cavities 20 corresponding with the ribs 16, but narrower and deeper. Water under pressure is admitted to the bag 24 to force the tyre into the mould, and the vulcanization is completed. In a specific case, the ribs were compressed 19 per cent. axially, resulting in an increase of abrasion resistance of 16 per cent. The tyre may be completely vulcanised at the first stage, deformed, and heated at 212‹F. for 2-5 hours, but the two-stage vulcanization is preferred. U.S.A. Specification 1,539,618 is referred to.
Patent GB-779012-A (GB)
Title: Improvements in or relating to radio station receiving apparatus
IPC: H04B7/08
Filed: 1954-02-19
Abstract: 779,012. Radio receiving systems. GENERAL ELECTRIC CO., Ltd., and FAIRBAIRN. E. P. Feb. 17, 1955 [Feb. 19, 1954], No. 5006/54. Class 40(5) A radio receiving station comprises two receivers X, Y with muting relay contacts 5, 6 opened by noise derived voltages in the absence of received signals but closed by received signals so as to energize relays X/6 and Y/7 and close contact switches X2, X3, Y2, Y3 in feed lines from the receivers to a common output L1, L2. The relays X/6 and Y/7 also close contacts X4, Y4 so that a line ST is earthed to call the operator at the distant exchange to which the lines L1, L2 are connected. A relay B is also energized but, in the event of failure of either one of the receivers X, Y the contacts X1, Y1 are in different positions and the slow to release relay B is released to close contact B1, whereupon either relay XA/6 or YA/6 is operated corresponding to which receiver is defective and a lamp 11 or 12 is lit and an alarm bell sounded at a control unit. The relays XA/6 or YA/6 become locked over a circuit having a reset key 9 and only on the defective receiver being repaired and the reset key temporarily operated is the control system again operative. In operation a defective receiver X or Y results in the muting relays releasing to close contacts 5 or 6 (the same position as when a signal is received by a normally working receiver) but the action of relays XA/6 or YA/6 opens contacts XA6 or YA6 to deenergize relay X or Y and open contacts X2, X3 or Y2, Y3.
Patent GB-1453789-A (GB)
Title: Inside diameter outside diameter and wall thickness tube gauge
IPC: G01B17/02
Filed: 1974-02-05
Abstract: 1453789 Gauging tube dimensions EXXON NUCLEAR CO Inc 5 Feb 1974 [21 June 1973]  05181/74 Heading G1G The inside and outside diameters (I.D., O.D.) and wall thickness (W) of a tube 5 are measured simultaneously by passing the tube through a tank 3 of coupling medium (e.g. water or oil), operating each of diametrically-opposed ultrasonic transducers 1, 2 in a pulse-echo mode, and processing echo signals from the tube inner and outer walls to give signals representing respectively I.D., O.D. and W. In the embodiment shown, compensation for changes in acoustic velocity with temperature of the coupling medium is provided by deriving from a reference transducer 6 a tank-wall echo 45 which occurs just before the tube-wall echoes, the transducers 1, 2, 6 being pulsed simultaneously and the echo-times for echoes 46, 47 from the tube outer wall (received at transducers 1, 2 respectively) then being measured relative to the reference echo 45. Timers provide pulses 49, 50 of width equal to these echo-times, and the pulse widths are converted to proportional voltages 64, 65 by ramp voltage generators and sample-and-hold circuits. Similarly, voltages 61, 62 each proportional to the interval, twl or tw2, between the inner, 70 or 71, and outer,46 or 47, tube wall echoes are derived. The sum 66 of 64 and 65 is formed; it represents O.D and is used to give one trace on a chart recorder 9. The sum 63 of 61 and 62 is also formed; it represents W and is used to give a second trace on the recorder. A third trace showing I.D. is obtained by subtracting 63 from 66. Echo signals may be monitored on a CRO included in signal processing unit 10.
Patent GB-772272-A (GB)
Title: Improvements in and relating to garment hooks
Inventor: PICKARD ALBERT PHILIP
IPC: F16B2/14
Filed: 1955-02-22
Abstract: 772,272. Hooks. CLARK, HUNT & CO., Ltd. Feb. 22, 1955, No. 5213/55. Class 89 (2). A garment-hook comprising horns 3, 4, Fig. 4, has a yoke 2 for clamping the hook to a mounting framework 1, the yoke ending in dove-tail portions 5 tapering longitudinally of the body and separated by a gap 8. A clamp 6, having a dove-tail recess, is driven on to the portions 5 to clamp the body to the framework, and may have a number or other identification-mark thereon. In another arrangement, the hook has opposed pairs of horns 3, 4, Fig. 3, and the body 2 is split diametrically and has two sets of dove-tail portions 5 for clamps 6. The internal-surface of the body may be serrated or have a projection to bite into the framework. Any of the horns may be branched, or omitted.
Patent GB-1523091-A (GB)
Title: Time division multiplex telephone systems
IPC: H04Q11/04
Filed: 1977-02-09
Abstract: 1523091 TDM operator break-in arrangement MARCONI CO Ltd 9 Feb 197 [12 Feb 1976] 05277/77 Heading H4K An operator breaks into a time slot in use on both a transmission highway 1 and a reception highway 2, by selecting the required time slot using selector 21 to cause an address to be supplied to comparators 3, 4 where it is compared with the outputs from the clock address registers used for defining the time slots on the transmission and reception highways respectively. The comparators enable respective insertion circuits 25, 27 and read and hold circuits 24, 27 during the selected time slot to effect a two way connection with the operator position via filter 32, demodulators 30, 31 and modular 39. The operator can also couple in a number of other devices 38, 37, 40, 41. The arrangement is particularly for use where the clock address registers of the transmission and reception highways are not synchronized.
Patent GB-1103396-A (GB)
Title: Manufacture of precious metal spheres and spheroids
Inventor: RHYS DAVID WADE
IPC: C22C1/04
Filed: 1966-02-07
Abstract: A method of making spheres or spheroids of alloys of Ru, Rh, Ir or Os comprises heating the pure refractory metal in the form of a fine powder with a matrix mixture of Pd or Pt and Au and/or Ag to melt the matrix mixture but not the refractory metal, the dispersion so formed then being cooled and leached (e.g. with aqua regia) to give the spheres or spheroids.  Except in the case of Rh and Au and/or Ag may be partially or wholly replaced by Cu.  The refractory metal may be compacted with or without sintering (e.g. at 800 DEG C. to 1600 DEG C.) followed by infiltration of the matrix metal (e.g. at 1000 DEG C. to 1600 DEG C.  Preferably powders of the refractory metal and the matrix mixture are mixed compacted and heated.
Patent GB-234559-A (GB)
Title: Flexible "engaged" indicator for theatre and other seats
IPC: G08B5/22
Filed: 1924-03-01
Abstract: 234,559. Crowder, H. B., and Crowder, T. C. March 1, 1924. Addition to 197,451. Seat " engaged " indicators. - In the " engaged " indicator for seats described in the parent Specification, the movable plate b which carries a notice adapted to be displaced through apertures f in a casing a, is operated by a cam or lever g. The lever co-operates with ribs d formed on the plate b and has a hollow boss which projects through the casing a. The boss is adapted to receive a key.
Patent GB-1523092-A (GB)
Title: Lectrode for an electrical storage battery
IPC: H01M4/68
Filed: 1977-02-09
Abstract: 1523092 Pb-Sb electro-plate TUDOR AB 9 Feb 1977 [27 Feb 1976] 5340/77 Heading C7B [Also in Division H1]  A lead battery grid is electro-plated with a Pb- Sb alloy in a fluoroborate bath.
Patent GB-572779-A (GB)
Title: Improvements in cobalt alloys
IPC: C22C19/00
Filed: 1942-04-09
Abstract: 572,779. Alloys; annealing. MOND NICKEL CO., Ltd. (International Nickel Co., Inc.). April 9, 1942, No. 5344/43. Divided out of 572,861. [Classes 72 and 82 (i)] An age-hardenable alloy containing over 10 per cent and usually 50 per cent or more of cobalt, and which may contain also up to 85 per cent of nickel, up to 10 per cent of manganese, up to a total of 45 per cent of chromium, copper, and iron, and up to 5 per cent of other elements, contains also aluminium with or without silicon or titanium or both, the cobalt plus nickel content being at least 45 per cent, and its ratio to the content of aluminium plus silicon plus twice the square root of the titanium being between 11 and 20 to 1, preferably between 13 and 17 to 1. The preferred alloys are copperfree and contain less than 25 per cent of chromium. Up to 1 per cent of carbon may be present. The alloys may be softened by quenching or rapidly cooling from over 1500‹ F. They may then be deformed cold, machined, and hardened by reheating to 1100-1500‹ F. for up to 24 hours and cooling slowly. Cold working may be applied before or after the agehardening.
Patent GB-144356-A (GB)
Title: Improvements in and relating to water-planes or hydro-aeroplanes
IPC: B64C35/00
Filed: 1919-03-04
Abstract: 144,356. Ricci, E., and Ricci, U. March 4, 1919. Drawings to Specification. Floats for aerial machines.-Floats for hydroaeroplanes are constructed from a frame of ash or poplar with a covering of three-ply wood, and are divided into a number of airtight compartments. The under surface is formed with a rebate or indentation at a distance of one-third of the length of the float from the forward end.
Patent GB-723995-A (GB)
Title: Improvements relating to the production of synthetic rubber products
Inventor: NEWNHAM JOHN LEATHAM MATTHEW
IPC: C08L21/02
Filed: 1952-03-19
Abstract: An aqueous dispersion of a conjugated diene synthetic rubber containing a stabilizer is gelled in the presence of from 0.1 to 1 per cent of an acyclic polyalkylene polyamine or a mixture thereof. Specified rubbers are polymers of butadiene, a conjugated pentadiene and chloroprene or their copolymers with minor amounts of isobutylene, styrene, methyl methacrylate and methyl isopropenyl ketone.  Specified stabilizers are a fatty acid, a fatty acid soap, and/or rosin and soap.  A heat-gelling agent and an acid-forming delayed-action gelling agent such as an alkali-metal silicofluoride or titano-fluoride may be used. Specified polyamines are diethylene triamine, triethylene tetramine, tetraethylene pentamine, pentamethylene hexamine and dipropylene triamine.  Sponge-rubber products may be obtained by compounding with sulphur, vulcanization accelerator and, if desired, a frothing agent, frothing and gelling.
Patent GB-966924-A (GB)
Title: Photographic objectives and mounts with variable depth of focus
IPC: G03B17/02
Filed: 1962-02-13
Abstract: 966,924. Photographic objectives with depth of focus indicators. M. C. SCHNEIDER, and H. J. SCHNEIDER, [trading as JOS. SCHNEIDER & CO. OPTISCHE WERKE]. Feb. 13, 1962 [March 2, 1961], No. 5458/62. Heading G2A. A photographic objective includes means for varying first and second factors influencing depth of focus, a scale for indicating the object distance, a series of lines for indicating lengths of the scale and thus the depth of focus range, and mechanical means coupled to means for varying the first factor and serving to point out one or more of the lines which correspond to values of the second factor. As shown the objective focusing ring 2 carries an object distance scale 2a while lines 4 indicate different depth of focus ranges corresponding to different aperture and focal length combinations in a zoom lens. On altering the focal length by rotating a knob 3 which moves the optical components through a rotatable cam tube 6 a scale bearing axially staggered sets 8 of aperture values on the tube is rotated so that each set 8 in turn becomes visible in a window 5 in the middle of the lines 4, the aperture values in the set indicating the appropriate depth of focus line. Alternatively a single aperture scale axially movable by a pin and slot connection with the tube may be provided (Fig. 4 not shown) or in a simpler construction the scale of sets of aperture values is replaced by a wedge-shaped circumferential area on the tube, the top of the area visible in the window indicating the depth of focus for the maximum aperture (Fig.2 not shown).