baber/WOPTO huggingface dataset:
Patent GB-1105764-A (GB)
Title: Methods of producing isotropic shaped carbon bodies
IPC: C10L5/06
Filed: 1966-02-17
Abstract: Shaped isotropic carbon bodies are formed by filling a mould with a green mixture, comprising carbon plus binding agent(s), and carbonizing the same therein without the application of external mechanical pressure.  The binding agent may be pitch.  The green mixture may be shaken in the mould to pack it tightly, and the mould may then be sealed prior to carbonizing at a temperature of e.g. 1000 DEG  C. for 70 hours. The carbon body may be impregnated with a suitable material e.g. pitch, to increase its density.  The mould may be of graphite and cylindrical in shape, or formed of two threaded hemispherical shells, one of which contains a threaded plug for filling the mould.  The upper of the shells may be over-dimensioned to allow for subsequent flattening of the body and the mould may also contain a ball to form hollow products.
Patent GB-850963-A (GB)
Title: Means for reading magnetic recording
Inventor: DAVIES DONALD WATTS
IPC: G11B5/00
Filed: 1956-03-07
Abstract: 850,963. Magnetic reproducing apparatus. NATIONAL RESEARCH DEVELOPMENT CORPORATION. March 4, 1957 [March 7 1956], No. 7120/56. Class 40 (2). Relative movement between a magnetic reading head 1 and a magnetic record 3, other than that of simple feed of the record (which may be too slow or non-existent) is used to induce a readable output from the head. As shown the record 3, normally fed by a pinch wheel 5, is vibrated transversely towards and away from the head 1 by a vibrating pulley or other member mechanically coupled to the tape, by the electrostatic effect of an alternating potential applied between the tape and a fixed plate, or by sound waves from a loud speaker 11. Specifications 751,360, 791,902 and 824,653 are referred to.
Patent GB-1184811-A (GB)
Title: Laminated Pressure Vessel Having Resistance to Hydrogen Embrittlement
Inventor: UTO YOSHIMITSU
IPC: B23K9/23
Filed: 1967-02-14
Abstract: 1,184,811. Hydrogen-resistant pressure vessel. MITSUBISHI TUKOGYO K.K. 14 Feb., 1967, No. 7120/67. Heading B1X. [Also in Division B3] In a laminated pressure vessel exposed interiorly or exteriorly to hydrogen at elevated temperature and pressure and having a circumferential weld extending through the wall of the vessel to join the laminations, at least the area of the weld exposed to hydrogen is an austenitic steel containing 16-30% chromium or a ferritic steel containing 10-30% chromium. A pressure container has an inner layer 21 of 0.5% molybdenum steel. The inner laminations 22 are of the same steel and the outer laminations 23 are of carbon steel or 0.2% molybdenum steel. The weld consists of an inner deposit 24 of 13% chromium steel and an outer deposit 25 of carbon steel or 0.2% molybdenum steel. A vent 26 is prevents gas pressure developing between the laminations. In a modification, the deposit 25 and the laminations are of carbon steel and the inner deposit is of 18/8 stainless steel. Where the inner layer 21 is thick, the depth of the inner deposit 24 may be less than such thickness. The weld may be homogeneous. In a further modification, the inner layer 21 is of carbon steel clad with 18/8 stainless steel.
Patent GB-267944-A (GB)
Title: Improvements in or relating to measuring devices for taking out samples of liquid
IPC: G01N1/12
Filed: 1927-03-16
Abstract: 267,944. Jensen, J. C. March 16, 1926, [Convention date]. Measures of capacity; sampling liquids.-A device for taking samples of and measuring liquids, such as milk, and for pouring the samples into a test tube, bottle, &c., consists of a container a with a conical bottom in which is a valve c attached to a part d. The container a is immersed in the liquid, and filled, the valve c being shut. The device is then placed on the neck of bottle &c. h; the container a then seats itself on the part d, and the liquid descends into the bottle. Notches k in the shoulder e of the part d allow air to escape from the bottle.
Patent GB-102576-A (GB)
Title: Improvements in and relating to Petrol Air Gas Apparatus.
Inventor: SHARPE WILLIAM CHARLES
IPC: C10J1/12
Filed: 1916-05-24
Abstract: 102,576. Sharpe, W. C., and Sharpe, W. C. May 24, 1916. Cam-actuated pumps; regulating delivery by throttle valves.-In an air-gas plant, a reciprocating petrol pump d<5> is driven by a lever e<3> actuated by a ratchet wheel f on the shaft of a weightdriven rotary air blower a<1>, an adjustable stop f<1> being provided for varying the stroke of the pump. A float valve e<1> is interposed between the petrol reservoir and the pump.
Patent GB-1487868-A (GB)
Title: Arrangement for controlling alternating currents
IPC: H02M5/253
Filed: 1975-02-21
Abstract: 1487868 Controlling A.C. LICENTIA PATENT VERWALTUNGS GmbH 21 Feb 1975 [23 Feb 1974] 7390/75 Heading H2H Apparatus for controlling A.C. from a source N to a load V comprises first and second pairs P1, P2; P1<SP>1</SP>, P2<SP>1</SP> of back-to-back thyristors each connected in series with the load V, the first part being connected directly with the source line R and the second being connected with a line R<SP>1</SP> to which is applied a voltage which is derived from the source N, is in phase therewith and is of a lower amplitude, this second pair of thyristors P1<SP>1</SP>, P2<SP>1</SP> each having a diode n 1 , n 2  in series therewith poled in the same sense as the respective thyristor, the junctions between each diode, thyristor pair being connected via respective capacitor, inductor links C1, L1; C2, L2, to the input line R. In operation during, e.g. a positive supply ¢-cycle, thyristor P1 is fired initially to connect the voltage at R to the load. At an appropriate time in the first half of the ¢-cycle, thyristor P1<SP>1</SP> is fired to quench thyristor P1 using the commutating circuit C1, L1, thyristor P2 being fired to limit the load current if necessary during commutation, thyristor P1<SP>1</SP> remaining on after the commutation is complete to connect the lower voltage R<SP>1</SP> to the load V. Reverse commutation may take place later in the ¢-cycle.
Patent GB-849096-A (GB)
Title: Improvements in or relating to apparatus for producing sonic energy
IPC: G01S15/14
Filed: 1957-03-06
Abstract: 849,096. Submarine signalling systems. RAYTHEON MANUFACTURING CO. March 6, 1957 [March 19, 1956], No. 7429/57. Class 40 (4). [Also in Group XL (c)] A submarine signalling and echo-receiving system makes use of the non-linear reactance of a ceramic transducer. In the schematic, Fig. 1, the transducer emits pulses of acoustic energy when motor-driven contacts 16 energize a driver circuit 12. Echos are received when the contacts 16 are open and the electrical response of the transducer is amplifier, rectified, and applied to a remote indicator 18 to indicate the distance of the reflecting object. First embodiment. Fig. 2.-A barium titanate transducer 10 has three frequency modes and the circuit components are chosen to drive it at the middle of these frequencies. Each time the motor-driven contacts 16 are closed the resonant loop 33 generates a damped oscillatory wave train at a frequency of 200 kc/s. A voltage build-up occurs in the resonant loop 39 which oscillates, so exciting the transducer which emits narrow pulses. These pulses increase to a peak amplitude and then decay. During the receiving period the contacts 16 are open so that loop 33 is ineffective and loop 39 oscillates alone, the receiving circuit operating as a wide band-pass device comprising several selective resonant circuits. The output of the loop 39 is amplified at 38. Second embodiment. Fig. 3.-The motordriven contacts 44 are in series with a spark gap 43 and the circuit has a high-voltage supply 40. When the contacts close the storage capacitor 41 discharges across the gap so producing a burst of pulses from the transducer 10. A neon lamp 52 limits grid current in tube 38 to a safe value during the transmitting period.
Patent GB-769364-A (GB)
Title: Reaction of benzene and dichlorosilane-trichlorosilane mix
IPC: C07F7/12
Filed: 1955-03-16
Abstract: Phenylchlorosilanes, comprising predominantly phenyldichlorosilane, are prepared by heating benzene with trichlorosilane and dichlorosilane under pressure, there being 0.1 to 2 mols. of trichlorosilane per mol. of dichlorosilane. Suitable temperatures are 150-500 DEG  C. with pressures from 1000 to 20,000 lb/sq. in.  A catalyst may be employed, the type of Lewis acid metal halides being suitable.  Examples are boron trichloride, aluminium trichloride and niobium pentachloride. These may be improved by the addition of alkali metal hydride complexes, e.g. lithium borohydride.  The reaction products contain, in addition to phenyldichlorosilane, phenylmonochlorosilane, phenyltrichlorosilane and a high boiling fraction which contains diphenyldichlorosilane.  The examples describe batch and continuous flow processes, and compare yields under varying conditions.
Patent GB-539379-A (GB)
Title: Improvements in apparatus for feeding tapered articles
IPC: B65G11/20
Filed: 1940-05-16
Abstract: 539,379. Feeding articles from shoots. DEARSLEY, G., HARRIS, R. W., and MOLINS MACHINE CO., Ltd. May 16, 1940, No. 7667/41. Divided out of 539,365. [Class 117] Also in Groups XXI and XXX] Tapered articles such as cartridges are delivered in a vertical hanging position to guides 61, 62, which deliver them in a horizontal position on to support 64, which may be, as shown, a rotating fluted wheel. The guides consist of two pairs of rails downwardly inclined, the spacing of the rails 62 being sufficient to pass the points of the cartridges but not the shouldered portions. Owing to the forward feeding movement and the support on the rails 62 being below the centre of gravity of the cartridges, the latter swing forward. The rails merge into a curved portion 63 at their lower ends and a guard member 100 controls the movement of the cartridges. Specification 539,365 is referred to.
Patent GB-1036263-A (GB)
Title: Fuse for fire alarms
Inventor: SMITH RANDOLPH J
IPC: G08B17/00
Filed: 1965-02-23
Abstract: 1,036,263. Fire alarms. INTERSTATE ENGINEERING CORPORATION. Feb. 23, 1965, No. 7714/65. Heading G4N. An actuating device for a fire alarm includes a spring loaded pin 12 retained in position by a fusible disc 34 mounted on a plate 22. The plate 22 is located in position by means of a pair of spaced legs 14 which engage with key holes 26 in the plate, Figs. 3, 4 (not shown), a pin 18 engaging with aperture 28 and a bendable member 30. Fusing of the disc 34 releases the pin 12 to initiate an alarm and also releases plate 22 as shown by the broken outline.
Patent GB-659278-A (GB)
Title: An improved time stamp
IPC: G07C1/06
Filed: 1949-03-22
Abstract: 659,278. Workmen's time-recorders. LANDIS & GYR. SOC. ANON. March 22, 1949, No. 7803. Convention date, April 9, 1948. [Class 106 (iv)] [Also in Group XVI] In a timekeeping device for use in stamping workmen's cards for clocking in or out, or other documents, a key 1, comprising a pivoted extension of a fixed support 3, being pivoted at 2, actuates when depressed a link 8 through a roller 6 and a lever 5. The link 8 moves upwards and first stresses a hammer 10, pivoted at 11, against a tension-spring 12. On further movement of the link 8, a pin 8a acting on a cam surface 17 moves the shoulder 16 clear of the hammer, and the spring causes the head 10a of the hammer to fly upwards through an aperture 3a in the support 3 against a document 4 placed thereon, to press the document against time-printing wheels 14 controlled by a clock.
Patent GB-1219202-A (GB)
Title: Radio frequency electrical detecting means
IPC: G01S13/58
Filed: 1968-02-16
Abstract: 1,219,202. Radar. MINNESOTA MINING & MFG. CO. 16 Feb., 1968 [17 Feb., 1967], No. 7810/68. Heading H4D. The Specification describes a radar system, wherein detection of a reflecting object within the radiation field of a transmitted wave causes a change in frequency of said transmitted wave. The system comprises an oscillator producing said wave at a frequency dependent on the phase of a controlling feedback signal. The echo signal from the detected object is added to a normally present feedback signal and so causes a change in the total phase thereof and in said transmitted frequency. An oscillator comprises an amplifier transistor 40 and oscillatory circuits 14 and 26. A capacitor 60 provides basic feedback, whereby the standard frequency fr, Fig. 2, of the oscillation is established in the absence of echo. The oscillator output is radiated by aerial 82 and echo signal from object 30 is received by aerial 84. The echo signal forms an additional feedback signal for the oscillator, having a phase dependent on the range of the object. The oscillator frequency will thus vary with the range d of the object, about the standard frequency fr, in the manner shown in Fig. 2. Movement of the object will thus produce a Doppler change in frequency, which change can control target velocity indicating means, Fig. 8 (not shown). In addition the output of the oscillator can be pulsed to derive range information. Since the transmitted frequency contains all necessary target velocity information, such information can be derived at a remote receiver, Fig. 6 (not shown).
Patent GB-684570-A (GB)
Title: Improvements in pottery boards and similar panel-like articles
IPC: B65D6/16
Filed: 1950-03-29
Abstract: 684,570. Potter's boards. ESSEX AERO, Ltd., and CROSS, R. J. March 19, 1951 [March 29, 1950], No. 7912/50. Class 34 (ii) A potter's board or similar panel-like article comprises two metal sheets 10, 11 spaced apart by frusto-conical members 13 as described in Specification 677,271, [Group X], the edge of the board being closed by a metal strip 12 formed with grooves to receive the edges of the sheets 10, 11. The outer walls of the grooves are bent over to retain the edges of the sheets. The ends of the strip 12 may be secured together by welding or riveting or by a butt strap. In a modification, the strip may comprise longitudinally staggered inner and outer strips.
Patent GB-559207-A (GB)
Title: Process for producing alkyl derivatives of paraffinic hydrocarbons
IPC: C07C2/60
Filed: 1942-06-11
Abstract: 559,207. Hydrocarbons. UNIVERSAL OIL PRODUCTS CO. June 11, 1942, No. 7995. Convention date, June 25, 1941. Drawings to Specification. [Class 2 (iii)] Substantially saturated alkyl derivatives of paraffinic hydrocarbons are prepared by alkylating an isoparaffinic hydrocarbon by an olefinic hydrocarbon, or compound producing an olefinic hydrocarbon during the reaction, e.g. an alkyl halide, in presence of a solution comprising essentially a soluble metal halide of the Friedel-Crafts type, e.g. aluminium halide, dissolved in a nitroparaffin, the isoparaffin being used in molecular excess. A small amount of hydrogen chloride and hydrogen may be present. The olefine is diluted with the isoparaffin and introduced at a number of points through the reaction zone. Examples give the preparation of heptanes and octanes from isobutane and propene or normal butene, nitromethane being used as solvent for aluminium chloride. Nitroethane or nitropropane may also be used. Ethylene, butenes, higher normally liquid olefines, diolefines, polyolefines may also be used.
Patent GB-1459856-A (GB)
Title: Automatic fire extinguisher for a storage tank with inflammable contents
IPC: A62C3/06
Filed: 1974-02-21
Abstract: 1459856 Storage tank fire extinguisher SAVAL BV 21 Feb 1974 [27 Feb 1973] 8007/74 Heading A5A A fire extinguishing system for a storage tank with a movable roof comprises first and second rows of sprinklers extending round the rim of the roof, a first reservoir for supplying fire extinguishing fluid to sprinklers in the first row and second reservoir for supplying fluid to sprinklers in the second row which are located opposite to and spaced from the sprinklers in the first row, in which the sprinklers are members of two or more groups the sprinklers of one group having a higher operating temperature than the sprinklers of the other group or groups. Preferably at least one group having a higher operating temperature and at least one group having a lower operating temperature is provided in each row, the sprinklers in one row having the higher operating temperature being opposite sprinklers in the second row having the lower operating temperature. At the cross-over points further sprinklers having an operating temperature higher than either group and/or further sprinklers having intermediate operating temperatures may be provided.
Patent GB-252497-A (GB)
Title: Process and apparatus for the removal of naphthalene and analogous hydrocarbons fromfuel gases
IPC: C10K1/18
Filed: 1925-03-25
Abstract: 252,497. Wade, H., (Koppers Co.). March 25, 1925. Scrubbers and washers.-In apparatus for removing naphthalene. &c. from coal gas &c. in which the gases are passed upwards through a packed tower T down which anthracene oil, or other solvent trickles, the main body of solvent is introduced through intermediate sprays 6 and recirculated by a pump 5, and solvent is introduced at the top through sprays 17. The tower is packed with diamond shaped hurdles 7 between which are arranged bodies 8 of metal turnings, wood shavings, or excelsior. The solvent is introduced intermittently by a valve 19 operated by a magnet 20 controlled as described in Specification 252,498, [Class 135, Valves &c.].
Patent GB-432377-A (GB)
Title: Improvements in sand blast apparatus
IPC: B24C3/26
Filed: 1934-03-14
Abstract: 432,377. Sand -blast; rumbles. ST. GEORGE'S ENGINEERS, Ltd., Ordsall Lane, Trafford Bridge, Salford, Lancashire, and WILSON, F. W., Silverwood, Washway Road, Sale, Cheshire. March 14, 1934, No. 8012. [Class 60] Sand - blast apparatus for cleaning small castings, &c., comprises a rotary perforated barrel A, open ended and of double conical or like form, mounted on and rotated by rollers a<1> and located within a dustproof casing a. The articles to be treated are fed continuously into one end of the barrel by a shoot E and, on leaving the barrel, pass to a discharge shoot G, the sandblasting being performed during the passage of the articles through the barrel by nozzles H. Abrasive material and dust from the barrel fall into a hopper C and are raised by an elevator D to a separating chamber D<1>, the abrasive being forced by compressed air from the chamber D<2> through pipes d to a receptacle for re-use. The barrel may be in two parts separated by a stationary division through which the blast nozzles are introduced. The two parts may rotate at different speeds or in opposite directions. Instead of having large ends adjacent the disposition may be reversed. Truncated pyramids may be used instead of cones. Two barrel units may be combined in various ways.
Patent GB-984561-A (GB)
Title: Dental equipment
Inventor: BOULSOVER GEOFFREY
IPC: A61C17/02
Filed: 1960-03-07
Abstract: 984,561. Dental syringes. AMALGAMATED DENTAL CO. Ltd. March 7, 1961 [March 7, 1960], No. 8034/60. Heading A5R. A dental syringe comprises water and air conduits leading to a spray nozzle 5, each conduit having an electrical heating element 27, 29 and a control valve 20, 21, actuating means for the valves arranged to actuate switches 39, 41 for the heating elements and a switch 40 for interrupting the electrical supply to the air heating element 29 when both valves are opened. The syringe body, which includes water and air conduits, control valves 20, 21, heaters 27, 29 and switches 39, 40, 41, is secured in a casing 6 by a spring-loaded catch 7a. Water and air conduits 3, 4 project from the forward portion 1 of the syringe to the nozzle 5. Contact pins 15 and nozzles 16, 18 for air and water project rearwardly from the syringe body and are received by corresponding sockets in a union 8 in order to connect an electrical supply and supplies of water and air respectively to the syringe. The union has concentric polythene water and air pipes 13, 14 and electrical leads 12. The water heater 27 comprises an insulated element 27a around which water flows in a small bore helically coiled conduit 26a or in a cavity formed between closely spaced cylindrical shells. The air control valve 21 is opened and the normally open air heater switch 41 is closed on depression of a lever 25 which extends longitudinally of the syringe body within the casing. Similarly the water control valve 20 is opened and the normally open water heater switch 39 is closed on depression of a lever 24. Each lever is depressed when an associated lever 37 or pressbutton mounted on the casing is depressed, so that either heated air or heated water can flow to the nozzle 5. The lever 24 which actuates the water control valve and the water heater switch also actuates a normally closed switch 40 which is arranged in series with the air heater switch so that, when both levers are depressed through the levers 37 to supply a water-air spray to the nozzle, the electrical supply to the air heater is interrupted.
Patent GB-1524894-A (GB)
Title: Transmission line filters and radar system
IPC: G01S7/285
Filed: 1976-03-01
Abstract: 1524894 Filters; radar RAYTHEON CO 1 March 1976 [23 June 1975] 08111/76 Headings H3U and H4D A filter 14, Fig. 1, with a plurality of pass-bands, including one centred on a predetermined frequency, comprises first and second hybrid couplers 16, 22 interconnected by two transmission paths 18, 20, one of which includes a delay device 24 introducing a relative delay of an odd number of half wavelengths at the predetermined frequency, so that energy in the pass-band is fed from source 10 to the filter output. As shown, the arrangement is used in a radar system to filter microwave energy fed from a pulsed magnetron 10 via a duplexer 12 to an antenna 26. In the modification of Fig. 2, pulses from two magnetrons 50, 56 having different frequencies can be transmitted either alternately or simultaneously to a single antenna 54 via two cascaded filter sections. The filter sections have respective delay structures introducing different delays which are arranged so that one pass-band of each section is centred on the predetermined frequency, while adjacent pass-bands are non-coincident. Each delay structure comprises a fixed line stretcher, e.g. 70, and a variable delay section, e.g. 72, such as a movable shorting member for two line sections coupled by a directional coupler 74. The use of the filter in microwave communications links is envisaged.
Patent GB-512695-A (GB)
Title: Improvements in and relating to temperature control of electrically heated ovens
IPC: H05B1/02
Filed: 1938-03-16
Abstract: 512,695. Automatic control systems. BRITISH THOMSON-HOUSTON CO., Ltd., and CLOUGH, F. H. March 16, 1938, No. 8153. [Class 38 (iv)] Temperature. - An electric oven element is controlled by a number of circuits each comprising a separate thermostatic element 7 operating at a different temperature from the others and a switch 8 selectively connects each in circuit with the supply mains. Preferably one oven element 3 is controlled by an electromagnetic switch coil 5, this switch being of the micro-gap type.
Patent GB-350054-A (GB)
Title: Improvements in machines for mincing or cutting-up meat and other foodstuffs
IPC: B02C18/30
Filed: 1930-03-14
Abstract: 350,054. Mincing-machines. GREEN, L. E., 5, Godfrey Street, Warrington, Lancashire. March 14, 1930, No. 8220. [Class 28 (ii).] In a mincing-machine, the pressing faces of the forcing worm are formed with grooves a which are so inclined to the radii drawn from the points at which the grooves meet the periphery of the worm, that the material tends to move towards the centre of the barrel in which the worm rotates. The grooves may or may not be formed along the whole length of the worm.