baber/WOPTO huggingface dataset:
Patent GB-1082429-A (GB)
Title: Simplified color killer circuit
IPC: H04N9/70
Filed: 1966-05-10
Abstract: 1,082,429. Colour television. HAZELTINE CORPORATION. May 10, 1966 [June 2, 1965], No. 20580/66. Heading H4F. A " colour killer " circuit 19 in the chrominance channel of a compatible colour television receiver is arranged to respond to the variation in D.C. level at a point 15 in the anode circuit of the chrominance amplifier 13 which is brought about as a result of the action of the automatic colour control (ACC) system 10. Thus, during monochrome reception point 15 is at a comparatively low potential, since the ACC system produces no bias for the grid of amplifier 13, whereas during colour reception point 15 becomes progressively more positive in response to increasing amplitude of chrominance signal as the ACC system applies a negative bias to the amplifier grid. Circuit 19 applies a cut-off bias from source B 2  via saturation control 24 to the grids of demodulator stages 17, 18 and includes a neon tube 23 which is non-conductive during monochrome reception when point 15 is at a low potential. However, when a colour signal is received and point 15 increases in potential, at a useful level of colour signal as determined by the adjustment of potentiometer 22, neon tube 23 conducts and the potential applied to the modulator stages is increased to render them opera tive. Neon tube 23 may be used to furnish a visible signal that a colour signal is being received. In a second embodiment, Fig. 2 (not shown), a second neon tube (30) is included in the connection from point 15 so as to reduce the D.C. potential applied to potentiometer (22<SP>1</SP>) without reduction in the D.C. variation. The circuit involves a modification of the bias circuit of the demodulator stages. Since the second neon tube is continuously conductive when the receiver is operative it may function as an on-off indicator.
Patent GB-691302-A (GB)
Title: Devices for deflecting a fluid flow and applications thereof
Inventor: KADOSCH MARCEL
IPC: B64C9/38
Filed: 1949-08-08
Abstract: 691,302. Pulse jets. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. Aug. 8, 1949 [Aug. 11, 1948], No. 20601/49. Class 110(iii) [Also in Groups XXVII and XXXIII] The forward inlet 11 of a pulse jet is free of valves but is provided with an interceptor 2 opposite a curved portion 3 of the inlet duct, the interceptor serving to deflect a portion of the explosion gases around the curved wall 3 into a rearwardly directed duct 13, which may be connected to the reaction nozzle 12 or the rear end of the combustion chamber 10.
Patent GB-869923-A (GB)
Title: Improvements relating to anchor grips for tensioning wires, rods and the like
Inventor: SMITH HARRY
IPC: F16G11/04
Filed: 1957-06-29
Abstract: 869,923. Friction-grip fastenings. CABLE COVERS Ltd. Nov. 8, 1957 [June 29, 1957], No. 20612/57. Class 44. In an anchor grip for use in tensioning wires, cables, rods or like members, wherein a plurality of gripping jaws 3 having internal serrations or teeth 4 and at least partly frusto-conical external surfaces 5 are arranged to surround the member w to be gripped and adapted to be wedged within an internally coned body 1 when the member is tensioned, four segmental wedgeshaped gripping jaws 3 are used to provide two pairs of diametrically opposed jaws. As shown, the cone angle of the jaws and the body 1 is approximately 14 degrees.
Patent GB-516900-A (GB)
Title: Improvements in radio tuning arrangements
IPC: H03J5/12
Filed: 1938-07-12
Abstract: 516,900. Wireless receiving apparatus. POLYDOROFF, W. J. July 12, 1938, No. 20705. [Class 40 (v)] [Also in Group XXXVI] In a press-button tuning system in which a press-button unit can be set to select a station in a small portion of the frequency range, the whole range being covered by units covering a number of overlapping sub-ranges, each press-button has its individual indicating means, and circuits can tune the set to any station within its range. When the button 3, Fig. 1, is depressed, switches are operated to associate the tuning mechanism 13, 6 with the aerial circuits. The button spindle 11 engages pinion 10 so that rotation of the button moves the coil 6 relatively to core 13 and also, by means of rack 15, moves its individual pointer 16 relatively to the common scale 22, Fig. 3, so that a wanted station can be tuned in. Once the unit is set, the station selected can be tuned by depressing the corresponding button. Fine-tuning adjustments can then be made if necessary by rotating the button ; or, if desired, another station in the sub-range can be selected. Instead of variable inductances, the tuning units may comprise variable condensers 16, 17 as shown in Fig. 2. When a circuit comprises two or more tuned circuits, units in all the circuits may be tuned by means of the simple tuning rod 10. The switches operated by the depression of a push-button, as well as selecting the individual unit, may alter the inductance of the aerial coils.
Patent GB-216745-A (GB)
Title: Improvements in or connected with trawl fishing nets
IPC: A01K73/02
Filed: 1923-08-15
Abstract: 216,745. Nierinck, J. H., and Novo, G. A. Aug. 15, 1923. Grant of Patent refused. Trawling-gear.-The net is of greater depth than the other board 1 and has struts 4 at each side of the mouth connected by two long ropes 5, 6, to the other board.
Patent GB-1148883-A (GB)
Title: Files for documents
Inventor: TYLER JOHN ARTHUR
IPC: B42F9/00
Filed: 1965-05-17
Abstract: 1,148,883. Document files. BRITISH EAST LIGHT Ltd. 17 May, 1966 [17 May, 1965; 30 Dec., 1965], Nos. 20793/65 and 55265/65. Heading B6E. A clip for document files comprises a plastics member 1 and a spring 4 riveted at 9 to a hard cover. A finger piece 11 facilitates separation of member 1 from the file cover for removal or insertion of documents. Projections (12) on the member 1 hold the documents against the cover.
Patent GB-1002421-A (GB)
Title: Improvements in papermaking screens and other filter fabrics
IPC: D21F1/00
Filed: 1962-05-30
Abstract: The weft of a papermaking screen consists of alternate picks of metal strand and synthetic strand; the warp may all be metal or all synthetic, or metal alternating with synthetic.  The greater flexibility of the synthetic weft strands is counteracted by making them thicker than the metal weft strands so that the warp knuckles all lie in one plane.
Patent GB-148954-A (GB)
Title: Improvements in electromagnetic wave receiving systems
IPC: H01Q7/00
Filed: 1920-07-10
Abstract: 148,954. Soc. Franþaise Radio-Electrique. Nov. 31, 1916, [Convention date]. Void [Published under Sect. 91 of the Act]. Aerials; directive wireless signalling.-Relates to frame aerials and to aerials consisting of two parallel plates. The Specification is identical with Specification 146,204.
Patent GB-153597-A (GB)
Title: Improvements in secret telegraphic, telautographic, telephotographic, wire or wireless transmission systems
IPC: H04N5/04
Filed: 1920-08-23
Abstract: 153,597. Soc. Anon. des TÚlÚgraphes E. Belin. Dec. 24, 1914, [Convention date]. Open to inspection under Sect. 91. Oct. 20, 1920. Synchronous movements; facsimile telegraphs. -Relates to the electrical transmission of pictures, manuscript, code messages, &c. by wire conductors or by wireless, and comprises means for rendering the transmission secret. The system is of the kind in which the picture &c. to be copied is wrapped round a revolving cylinder which is synchronized with a corresponding cylinder at the receiving station by stopping and re-starting the. cylinder simultaneously at each revolution. In the present invention, the cylinder stopping and driving mechanism at each station is operated in an irregular fashion according to a code, which is indicated by a series of numerals on the runs of co-axial rings similar to those of a permutation lock. Reception is not possible unless the code rings at the two stations are set to the same number. Fig. 2 shows the numbered rings, and Fig. 4 shows the apparatus at the transmitting station, that at the receiving station being similar. The cylinder A on which the picture &c. is secured is driven by a clutch 15 controlled by a magnet M<1> and is released by a catch 16 controlled by a magnet M<2>. The magnet coils are connected to a shaft 6 and to a rotary arm 10 which makes contact in turn with segments 17, the arm 10 being driven by worm gear from the shaft 6. The segments 17 are connected to brushes engaging the rims of numbered rings 5 surrounding the shaft 6 and independently adjustable by screws 7 so as to set up any desired code number. On the inside of each ring 5 is a single stud-contact 8, the relative angular positions of the studs being dependent on the code number employed. The studs 8 are swept over by a radial blade 9 on the shaft 6. When the shafts 6 at both stations are simul. taneously released by chronometers 11, the blade 9 at each station makes one revolution and closes a circuit through magnets M<1>, M<2> at the stud 8 on that particular ring 5 which is connected to the sector 17 on which the arm 10 is situated, thus releasing simultaneously the transmitting and receiving cylinders. After an interval, the arms 10 having reached the next sectors 17, and the shafts 6 again released, the blade 9 makes effective contact with another stud 8. The cylinders are thus released at a sequence of irregular intervals. To ensure simultaneous release of the shafts 6 at the two stations, the apparatus described in Specification 20908/14 may be provided. The magnet coil M' may surround the shaft of the fixed clutch member, the movable clutch member forming the armature and being brought into engagement by magnetic attraction and disengaged by a spring.
Patent GB-1273934-A (GB)
Title: Method and device for obtaining a contact between reading heads and circulating magnetic memory systems
Inventor: BERARD JEAN-CLAUDE
IPC: G11B5/72
Filed: 1971-04-19
Abstract: 1,273,934. Magnetic recording and playback. COMMISSARIAT A L'ENERGIE ATOMIQUE and COMPAGNIE INTERNATIONALE POUR L'INFORMATIQUE. 19 April, 1971 [13 Feb., 1970], No. 20893/71. Heading G5R. An evacuated and thermostatically-controlled sealed enclosure 1 contains a circulating memory, e.g. a disc 2, one or more associated magnetic heads 3 with lowering and pressing mechanism 5, and an inert fluid 12, e.g. a silicone oil. The heads 3 ride on an adsorbed film of the fluid 12 which is deposited in the liquid state on the circulating memory 2 and is in thermodynamic equilibrium with its vapour at the maintained temperature of the enclosure 1.
Patent GB-890187-A (GB)
Title: Improvements in or relating to sockets for plug and socket connectors
Inventor: DE TH RODERICK MICHAEL
IPC: H01R13/15
Filed: 1959-06-18
Abstract: 890,187. Two-part couplings. PLESSEY CO. Ltd. July 7, 1960 [July 18, 1959], No. 20924/59. Class 38 (1). To maintain good contact between plug 3 and socket 1 of a plug-and-socket connector, plug 3 is pressed, after insertion, against bore 2 by a spring blade 9 located in recess 8 which intersects the bore. The blade 9 which may have one or two lead in dimples and be coated with P.T.F.E. to reduce friction is held in position when the socket is inserted into bore 6 of housing 5. In a modification, a sleeve spun in position over the socket gives a self-contained unit, Fig. 2 (not shown).
Patent GB-1425023-A (GB)
Title: Cutting machines
IPC: A24B7/04
Filed: 1972-05-05
Abstract: 1425023 Sharpening cutting blades MOLINS Ltd 7 May 1973 [5 May 1972] 20956/72 Heading B3D [Also in Divisions B5 and A4] A cutting machine comprises a first rotor 15, Fig. 2, carrying blades 14 round its periphery, each blade 14 being carried in a holder 16 which is pivotally mounted at 17 on the first rotor 15, and a second rotor 22 mounted eccentrically with respect to the first rotor 15 and rotatable in unison therewith, each holder 16 being connected to the second rotor 22 by a link 21 so that as rotors 15, 22 rotate in unison, the link interconnecting the holder to the rotor 22 causes the holder 16 to pivot with respect to the first rotor and thus alter the angle of presentation of the blade. The rotors are mounted on eccentric shafts A, B. Tobacco is fed into the space between endless travelling plastics belts 5, 6 (Fig. 4) passing over rollers 7, 8, whereby the tobacco is compressed and fed to further compressing rollers 9, 10. The spaces between rollers 7, 9 and 8, 10 are substantially filled by bridging members 13. Tobacco emerges from a mouthpiece 11 formed in parts 11a, 11b, and the part 11a is pivotable about the axis of roller 9. The angle of presentation of the blades varies between the angle required for sharpening by a rotary grindstone 23, and the angle required for cutting the compressed tobacco emerging from mouthpiece 11. The cutting angle is such that only the cutting edge is in contact with the tobacco. The gap between the mouthpiece 11 and the rotating blades 14 may be measured by a fluidic device, and a winding mechanism linked to the device may move the cutters towards the mouthpiece to compensate for blade wear. The mouthpiece may also be apertured for the passage of compressed air to reduce friction between the mouthpiece and the compressed tobacco.
Patent GB-1394382-A (GB)
Title: Dragline scraper
Inventor: DIPL ING KARL HAEGELE
IPC: H02P29/40
Filed: 1972-05-05
Abstract: 1394382 Drag line scrapers ZYKLOS METALLBAU KG DIPL ING KARL HAEGELE 5 May 1972 [7 May 1971] 20989/72 Heading B8E [Also in Division E1] In a drag line scraper having a motor driving a main winch 6 acting on a drag line cable 20 of a scraper bucket 24 and a motor driving a second winch 29 acting on a return cable 28 of the bucket there is associated with one of the motors a relay which is actuated directly or indirectly by the current of the motor so that when the current rises above a certain value the relay operates to cause a switching action on one or both motors. Preferably the relay may either be associated with the motor of the main winch to control the motor of the second winch or vice versa. The motor of the return winch may, at the end of a scraping run of the scraper, run at low speed before it is caused to run at a higher speed on delayed actuation of the relay which in this case is associated with the second motor to control switching of the main motor. This speed switching of the second motor occurs when a stop 30 on the bucket engages a stop 27 on a guide roller of a bridge-supported cable trolley 27 for the return rope. The stop on the trolley involves a yoke pivoted on the cradle and resilient, rubber bushes positioned between the yoke and the cradle. Specification 1,394,381 is referred to.
Patent GB-1338433-A (GB)
Title: Making photographic direct-positive silver halide emulsions
IPC: G03C1/485
Filed: 1971-04-19
Abstract: 1338433 Photographic direct-positive silver halide emulsions EASTMAN KODAK CO 19 April 1971 [16 Feb 1970] 21021/71 Heading G2C A light-sensitive photographic direct-positive fogged silver halide emulsion is made by adding thereto, after fogging of the silver halide has been completed, at least 1mg of a complex gold salt per mole of silver halide. The addition may be made after all ripening, sensitizing and digestion steps are completed, and may be made at about 40C. The gold complex salt may be an alkali metal or ammonium aurous dithiosulphate (Ex 1 to 3 and 6), alkali metal auric halide complex (Ex 4 and 5), thiourea - auric halide complex (Ex 7), auric chloride -3-ethyl-5-[(3-ethyl -2(3H)-benzoxazolylidene) ethylidene] - rhodamine addition product (Ex 7), alkali metal auric thiocyanate or 1, 1'-diethyl -2, 2'-cyanine auric tetrachloride (Ex 7). The fogged silver halide grains may have an electron acceptor adsorbed to their surface. Fogging may be effected with both a reduction fogging agent and a gold fogging agent. These emulsions show less loss of maximum density on storage than emulsions to which the gold complex salt has not been added without serious impairment of other sensitometric properties e.g. speed.
Patent GB-845159-A (GB)
Title: Means for regulating the energizing of electrical precipitators
IPC: B03C3/66
Filed: 1958-07-01
Abstract: 845,159. Automatic control systems for electrostatic precipitators. SVENSKA FLAKTFABRIKEN A.B. July 1, 1958 [July 3, 1957], No. 21032/58. Class 38 (4). In an electrostatic precipitator, the rate of flash-over is maintained at an optimum rate by varying the magnetization current of a control winding of a transductor in series with the A.C. supply to the precipitator. A transductor 4 in series with the supply from terminals 1 to a transformer 5 feeding an electrode 7 through a rectifier 6. The increase of voltage across the transductor on flash-over is applied through a transformer 16 and a rectifier 14c to a time delay network 14b in the grid circuit of a thyratron relay 14a. At an optimum rate of flash-over the relay contacts 13b are closed and a motor 11 drives a slider of a variable-ratio transformer 10 so as to decrease the magnetizing direct current in a control winding of the transductor and reduce the voltage applied to the electrodes. When the flash-over rate is below the optimum rate a cyclically operated time-switch actuates contacts 12b to raise the voltage applied to the electrodes. On sustained flash-over, a time-delay relay 18 disconnects the supply to the precipitator through a contactor 3. At a predetermined minimum voltage contacts are closed by the slider of the variable transformer 10 and connect a supply to a cleaner (not shown) through terminals 19.
Patent GB-232487-A (GB)
Title: Improvements in combined vehicle bumper and roadlight
IPC: B60R19/50
Filed: 1924-09-09
Abstract: 232,487. Harris, J. B. Sept. 9, 1924. Vehicle lamps.-A combined vehicle bumper bar and roadway illuminator comprises a hollow impact member extending across the front of the vehicle and provided in its front side with a lamp opening in which the lamp body is housed. The hollow bumper bar 10 has the front portion cut away at 13, Fig. 2, and is enclosed by a casting 16 provided with circular recesses 19 each of which takes a reflector 14, packing ring 24 and glass 23, held in position by a flange 25, Fig. 3 provided with a hood 27 which reflects the light on the road, and a horizontal glare-shield 28. Instead of circular openings 19 in the casting 16, longitudinal openings, to take both lamps, may be provided.
Patent GB-996567-A (GB)
Title: Can holding and moving apparatus
Inventor: REID FRANCIS REGINALD
IPC: B65B43/56
Filed: 1962-02-13
Abstract: 996,567. Conveying cans in packaging machines. PILLSBURY CO. Feb. 13, 1962, No. 21351/64. Divided out of 996,564. Drawings to Specification. Headings B8A and B8C. The description is identical with that in Specification 996,564. The claims are directed to the means for conveying the cans.
Patent GB-1313058-A (GB)
Title: Indicating coatings
IPC: G01N27/20
Filed: 1971-04-19
Abstract: 1313058 Detecting cracks BATTELLE DEVELOPMENT CORP 19 April 1971 [16 Feb 1970] 21363/71 Heading G1S [Also in Division G4] The occurence of cracks in a member 10 are detected by providing an indicating liquid, which may be pigmented and/or electrically conducting, in a plurality of reservoirs 16 in coatings 12, 14 on the member. In Fig.1, a metal member 10 has a non-conductive layer 12 containing the reservoirs 16 and a conducting layer 14. Cracks forming in member 10 propogate into layer 12 through some of the reservoirs and the cracks become filled with indicating liquid. The cracks may then be detected electrically as a fall in resistance of layer 12 and/or usually by virtue of pigments in the indicating liquid. The reservoirs may consist of capillary channels, Fig. 4 (not shown), or indentation, Fig. 5 (not shown), in the surface of layer 12. The reservoirs may alternatively be formed in the conducting layer 14, Fig. 6 (not shown), and layer 12 may then be omitted if a visual only indication is required. The conducting layer may be conductive by virtue of a high denisty of reservoirs, the walls of the reservoirs being made of metal or other conductive material, Fig.7 (not shown). Where the member 10 is not conductive, a conductive layer may be interposed between the member 10 and the layer 12 to allow electrical indication to occur, Fig. 8 (not shown). Suitable substances for the various layers and the indicating liquid are disclosed. The examples describe fatigue lists of specimens in which the resistance of layer 12 falls during the tests. The layer 12 may be provided in the form of a partially cured tape or patch, or in the form of an emulsion which cures in situ. The indicating liquid may be solid at ambient temperature.
Patent GB-1077718-A (GB)
Title: Improvements in suction cleaning equipment for winding machines
Inventor: SUMMERSCALES JOHN BROMLEY
IPC: F16L41/18
Filed: 1963-05-29
Abstract: In pneumatic apparatus for collecting fluff, dust and wild ends from a winding machine, a suction duct extending over the length of the machine is closed along its upper surface by overlapping abutting resilient flaps which in air-tight manner surround and abut the edges of a suction nozzle passing therethrough.  The nozzle, which is connected to a L-shaped tube with an outwardly flared end opening adjacent the cheeses and/or tensioning devices, is mounted on a cable-operated carriage whereby it continuously traverses the machine to collect fluff &c. on one side and then the other thereof.  The suction in the duct maintains the flaps in contact with each other and the nozzle separates them during its traverse, the flaps closing again automatically behind the nozzle.
Patent GB-532534-A (GB)
Title: Improvements in non-skid tire
IPC: B60C11/03
Filed: 1939-07-24
Abstract: 532,534. Pneumatic tyres. M. C. O. CORPORATION. July 24, 1939, Nos. 21487, 21488, 21489, and 21490. Convention dates, July 25, 1938, Sept. 17, 1938, Dec. 5, 1938, and Dec. 29, 1938. [Class 144 (ii)] A non-skid tyre tread comprises circumferential main load-carrying ribs alternating with lateral-support ribs which may be of smaller height than the main load-carrying ribs. The Figures show typical forms. Fig. 1 shows a tread comprising main load-carrying ribs 13 alternating with support ribs 15 of smaller height. As shown in Fig. 2, the main ribs may comprise a straight central rib 16 and pairs of sinous ribs 17a-17b, 18a-18b, 19a-19b with intermediate correspondingly-shaped support ribs 20r-20s, 21r-21s, 22r-22s. Fig. 4 shows a modification in which the main ribs 27, 27a, 27b are formed at intervals with projections 28 extending into the intervening grooves and joined, or not, to the support-ribs 29. Fig. 8 shows a further modification in which the load-carrying ribs 33 and the support-ribs 32 respectively taper, in cross-section, towards and from the treadsurface.
Patent GB-302672-A (GB)
Title: Improvements relating to stop motions for weaving looms
IPC: D03D49/58
Filed: 1927-08-16
Abstract: 302,672. O'Connell, J., (Vereinigte Oesterreichische Textil-Industrie Akt.-Ges.). Aug. 16, 1927. Stop-motions, shuttle.-The pivoted stop blade 5 controlled by a spring 6 is held raised until just before the beat-up by a support 7 engaging a bowl 9, the stop blade being thereafter held raised if the shuttle is properly boxed by a hook 10 engaging a hook 12 pivoted to the lay and controlled bv a shuttle feeler. If the shuttle is not boxed, as shown in Fig. 3, the hook 12 is not in position to be engaged by the hook 10, consequently the blade 5 falls, engages the frog 2 and stops the loom. In a modification, a vertically swivelling lever 15, Fig. 5, on the lay controlled by a shuttle feeler engages or not with a bolt or hook 14 on the blade according to whether the shuttle is boxed or not. The upper surface of the support 7 forms an arc having the same centre as the arc about which the lay swings.