baber/WOPTO huggingface dataset:
Patent GB-921221-A (GB)
Title: Blocking oscillator circuits
Inventor: LAX LADISLAV
IPC: H03K4/54
Filed: 1959-06-03
Abstract: 921,221. Transistor sawtooth circuits; automatic phase-control systems. PYE Ltd. May 30, 1960 [June 3, 1959], No. 19013/59. Classes 40 (5) and 40 (6). A blocking oscillator comprises a transistor having a frequency-determining capacitor connected in the emitter circuit, the frequency being adjustable by a further transistor connected across the capacitor and having its base connected to an adjustable D.C. potential. Fig. 3 shows a line time-base generator for a television receiver in which T 1  and the tightly-coupled ferrite cored coil L 1 , L 2  form a free-running blocking oscillator. The off period of T 1  is governed by the rate of discharge of capacitor C 1  through transistor T 2  acting as a constantcurrent device. The frequency is controlled by a D.C. voltage fed to terminal X from a phase detector in a flywheel synchronization circuit. A thermistor R 6  is mounted in conjunction with transistor T 2 , as described in Specification 915,290 so as to provide temperature stabilization. Diode D 1  minimises ringing.
Patent GB-378611-A (GB)
Title: Devices for facilitating the positioning of the blank and for increasing the useful work and the rapidity of the operations in powerful drawing presses
IPC: B21C1/26
Filed: 1931-07-02
Abstract: 378,611. Cupping. SCHNEIDER ET CIE, 42, Rue d'Anjou, Paris. July 2, 1931, No. 19138. Convention date, Aug. 5, 1930. [Class 83 (iv).] In drawing out a cupped ingot M on a mandrel H by pushing it through dies 11 .. I<4>, all the dies can be moved up by hydraulic cylinders J, clear of the stirrup-shaped die-holder cage B and are lowered one at a time into the path of the ingot to make one reduction, the ingot then being retracted after passing through each die. Figs. 1 and 1a combined show the draw bench in elevation. The mandrel H may carry the used die back on itself as in Fig. 10. The ingot M resting on cradles L shown dotted in Fig. 1 is moved along by hydraulic piston-rod N<2> through the cage while the dies are raised and placed over the mandrel H. The crosshead N<1> is coupled to notches in push-rods N secured to the cradles L. Fig. 5 shows a cross section of the intermediate support P of the mandrel, C being the tie rods for the assembly. If the ingot is misaligned with the mandrel it is adjusted by the hydraulic pistons J<1> and a separate piston for each cradle on which the cradles L rest. Spring rods L<2> assist in lowering the cradles when required. An abutment O distanced as required by a screw tie rod and nut O<1> from the cradle L bears against the end of the ingot. The mandrel is supported intermediately by a support P moved up by hydraulic cylinders P<1> while its main end support D is movable by hydraulic cylinders Fl.
Patent GB-1241311-A (GB)
Title: Method and apparatus for transmitting or recording and reproducing line-sequential colour television signals
IPC: H04N11/22
Filed: 1968-04-23
Abstract: 1,241,311. Colour television. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 23 April, 1968 [4 July, 1967; 3 Aug., 1967], No. 19208/68. Heading H4F. A composite colour television signal which is transmitted or recorded on a magnetic tape is formed by converting two chrominance signals, e.g. X and Z signals, into a line sequential signal which is then frequency modulated on a carrier and mixed with the luminance signal Y, index pulses being superimposed on every other horizontal synchronizing pulse in order that the particular chrominance signals received or played-back may be identified. In Fig. 10 the horizontal sync. pulses are extracted 29 from the Y signal and applied to flip-flop 39 which produces two outputs one of which is shown in Fig. 11g, the other being 180 degrees out of phase therewith. These outputs are used to alternately gate, 30 and 40, the X and Z chrominance signals, a line sequential signal being produced in mixer 31 which is frequency modulated 36 on a carrier and added 37 to the luminance signal. In addition an output of flip-flop 39 is differentiated 32, Fig. 11h, fed to a pulse amplifier the output of which is shown in Fig. 11i, differentiated 34, Fig. 11j, fed through a second pulse amplifier to produce the pulses of Fig. 11k which comprise the index pulses which are added to the composite signal in mixer 37 the output of which is shown in Fig. 11l. Conversion to simultaneous signals on reception or playback is effected in the circuit of Fig. 12 in which the Y signals are obtained via a low pass filter 40<SP>1</SP> and the line-sequential chrominance signal is separated by means of a bandpass filter 46 and applied directly and via a one line period delay 47 to gates 48-51 which are controlled by flip-flop 45. Flip-flop 45 is activated by the index pulses, Fig. 11k, which are separated from the output of horizontal sync. separator 42 by means of a pulse amplifier 43 and a resonance circuit 44. The outputs of mixers 52, 53 are frequency demodulated 54, 55 and clamped 56, 57 with the aid of the horizontal sync. pulses. Pulses such as q<SP>1</SP>, Fig. 15q may remain in those portions of the X and Z signals which correspond to the horizontal synchronizing pulses and these may be removed by applying between the clamping circuits 56, 57 and the output terminals 58, 59 the required combination of the pulses of adjustable amplitude shown in Figs. 15r and 15r<SP>1</SP>. Tint adjustment may be effected by means of the arrangement shown in Fig. 17 in which an adjustable proportion of the Z signal is mixed with the X signal and vice versa, the variable resistors 71 and 72 at the outputs of operational amplifiers 67 and 68 being ganged together so that the two adjustable proportions are identical but of opposite polarity. The arrangement of Fig. 17 forms the subject of Specification 1,241,312.
Patent GB-726382-A (GB)
Title: Improvements in variable speed transmission devices of continuously variable ratio
IPC: F16H37/08
Filed: 1953-07-10
Abstract: 726,382. Variable-speed gearing. SOC. ANON DES MANUFACTURES DES GLACES ET PRODUITS CHIMIQUES DE ST.-GOBAIN, CHAUNY & CIREY. July 10, 1953 [July 10, 1952]. Addition to 680,812. Class 80 (2). Continuously-variable gearing between driving and driven shafts 5, 14 comprises ball planets 35 carried by shaft 14 and engaging races in plates 11, 12, plate 12 being fast on shaft 5 while plate 11 is free and driven from a plate 10 through rollers 15 of adjustable inclinations engaging toric races in the plates 10, 11, and plate 10 is driven from shaft 5 through balls 34 engaged between a channel 10a in plate 10 and cam recesses 6a in a collar 6 secured to shaft 5 so as to provide torque-responsive axial loading of the gear members and subject shaft 15 to tension. The rollers 15 are loose on spindle 17 pivoted at one end through angle brackets 17b on pins 18 secured in a common sleeve 4 slidable on shaft 5, the other flattened end of each spindle being slidable in a radial slot 1a in the casing 1. One of the brackets 17b is extended at 52 and secured to a member 19 having a universal connection 50, 53 to one end of a rod 20, the other end of which is spherically mounted in the casing at 21, 54 and to which is pivoted a hollow control arm 23. A knob 49 journaled in the arm 23 carries a pinion 34 held in engagement with a circular rack 25 by a leaf spring 26 so that, by turning the knob, the arm 23 can be swung in a horizontal plane to adjust the inclination of the rollers 15.
Patent GB-187327-A (GB)
Title: Improvements in and relating to woven fabrics
IPC: B21F27/00
Filed: 1921-07-18
Abstract: 187,327. Woodward, C. H. R. July 18,1921. Composite metallic and 4 non-metallic threads, fabrics with; wires and separate non - metallic threads, fabrics with; yarns specially twisted or doubled, fabrics with; asbestos fabrics.-In a vulcanizable fabric comprising metal and fibre threads in both the weft and warp, the weft consists of fibre threads 5, Fig. 4, turned about wire threads 4 in coils spaced apart from one another at intervals predetermined by the spacing of the warp metal wires 1, so that the warp and weft wire always contact at their crossing points. The warp may comprise parallel threads in sets of two fibre threads 2 and a single wire 1. In making fabrics for brake-linings where asbestos is used as the fibrous material, one of the fibre elements of the warp may be turned around the metal element of the warp. In a modification, a weft thread is used comprising a soft steel or other metal wire 10, Fig. 6, which is wound into long spiral convolutions and then one or two cotton or other fibrous strands are spun around the wire, each fibre element being given one turn around the wire for each convolution thereof, by arranging the feed of the spinning-machine.
Patent GB-1172558-A (GB)
Title: Improvements in or relating to Buoyant Well-Head Structures for Offshores Wells
Inventor: DANIELL ALAN FRANCIS
IPC: B63B35/44
Filed: 1967-04-27
Abstract: 1,172,558. Wells &c. CAMMELL LAIRD & CO. (SHIPBUILDERS & ENGS) Ltd. 22 April, 1968 [27 April, 1967], No. 19417/67. Heading E1F. A well structure moored vertically over a sub-aqueous well comprises a hull 1 with a chamber 2 maintained under pressure to depress the water level therein and having an air lock 10 for access. The hull has ballast 3 forming the bottom of an annular chamber partly filled with water and containing equipment for processing the well products. During installation the structure is ballasted to float horizontally and is towed to the well, a float 13 being temporarily fixed in a central part, 20 of the chamber 2. When the structure is vertical over the wall the float is released from the structure and is connected to a well-riser 11 which is connected to the annular chamber by a flexible pipe 15. The products from the annular chamber are discharged through pipes running along the sea-bed, the structure being anchored to the bed by chains running through ducts 6. The chamber 2 is maintained under pressure by gas from the products, and has a vent 19. The riser may have an extension projecting through the chamber 2 for drilling.
Patent GB-590609-A (GB)
Title: Improvements in or relating to drawing and draughtsman's pins
IPC: B43M15/00
Filed: 1944-10-09
Abstract: 590,609. Drawing-pins. GREY, H. HAMILTON-, Oct. 9, 1944, No. 19420. [Class 89 (ii)] Drawing-pins have flat heads with at least two straight edges, on the periphery. The edges are preferably parallel but may be inclined at an acute angle. The head may be square and all the edges may be flanged as shown in Fig. 2. In a modification, the head may be bent from the centre to raise the two straight edges from the surface of the paper.
Patent GB-194318-A (GB)
Abstract: 194,318. Weissmann, G. March 4, 1922, [Convention date]. Vaporizing by heat.-In an incandescent electric lamp, the lamp structure carries an absorbent material impregnated with a liquid which is volatilized by the heat of the lamp to give out perfuming, purifying, or disinfecting vapours. The bulb may have one or more recesses b containing a paste c of talc or other absorbent material mixed with a perfume essence. The paste may be replaced by a filling of cotton wool, asbestos, or plaster of paris upon which the perfuming or disinfecting liquid is poured. A pervious or perforated protective surface d may be stuck to the bulb. Gas-filled or other high-power lamps may have the liquid contained in the plaster filling of their caps, in which case the cap may be formed with perforations to allow the liquid to be poured into the plaster and the vapour to emerge.
Patent GB-1389226-A (GB)
Title: Electrical terminal arrangements
IPC: H01R13/52
Filed: 1973-04-25
Abstract: 1389226 Terminals US TERMINALS Inc 25 April 1973 19593/73 Heading H2E Hermetically sealed multi-conductor terminal comprises recessed annular base 1 with annular sleeve portion 5 surrounding each conductor pin 6, and one-piece rigid or elastomeric plastics moulding 7 filling gaps between sleeves and pins. Pins 6 bear shoulders 9, 10, knurled portions 14 within the sleeves and tapered portions 13 to retain the pins and to minimize relative expansion effects. Moulding 7 forms thin annular walls 8 outside sleeves 5, and collars 17, 18 at the extremes of the moulding, on pins 6. In the moulding a ring form, and within but separate a central circular form (Fig. 3, not shown) connect the separate pin-surrounding parts within the recess of the base. Alternative embodiments slow pins with undercut shoulders or with a roughened plain cylindrical portion within the sleeve between enlarged plain cylindrical parts. The wall of a housing, if made to incorporate one or more sleeves, may serve as the base.
Patent GB-201918-A (GB)
Title: Improvements in the treatment of zinc bearing ores and metallurgical products
IPC: C22B1/24
Filed: 1923-07-31
Abstract: In the treatment of zinc ores containing the zinc in an insoluble form, the ore is dried and mixed with sulphuric acid in excess of that required for the conversion of the zinc present into zinc sulphate in a rotary mixer &c. so that nodules are formed.  The nodules are dried to eliminate moisture and noxious gases such as chlorine and fluorine and are charged into the top of a shaft furnace where they are subjected to the action of hot gases containing sulphur dioxide, such as roaster gases, passed upwards through the furnace, the operation being carried out at a temperature of 620 DEG C. to 740 DEG  C.  The gases from the furnace are passed, after suitable scrubbing, to an acid plant for the manufacture of sulphuric acid.ALSO:In the treatment of zinc ores containing the zinc in an insoluble form, the ore is dried and mixed with sulphuric acid in excess of that required for the conversion of the zinc present into zinc sulphate in a rotary mixer &c. so that nodules are formed.  The nodules are dried to eliminate moisture and noxious gases such as chlorine and fluorine and are charged into the top of a shaft furnace where they are subjected to the action of hot gases containing sulphur dioxide, such as roaster gases, passed upwards through the furnace, the operation being carried at a temperature of 620-740 DEG C.  The gases from the furnace are passed, after suitable scrubbing, to an acid plant for the manufacture of sulphuric acid.
Patent GB-201390-A (GB)
Title: Improvements in maps, charts, and the like
IPC: G09B29/00
Filed: 1922-07-17
Abstract: 201,390. Collins, A. D. July 17, 1922. Maps and charts. - In a process of mounting maps, charts, and the like, two or more component sheets are cemented together by means of shellac or a solution of shellac under heat and pressure to eliminate moisture. The maps A are preferably provided with surface coatings B of celluloid or the like to exclude moisture, and applied to a fabric or like reinforcement C which has been coated or saturated with shellac or shellac solution. The layers may be caused to adhere together by passage through a heated rollpress, the pressure and temperature of which can be varied as required. Specification 180,475 is referred to.
Patent GB-356354-A (GB)
Title: Improvements in and relating to weft stop motions for looms for weaving
IPC: D03D51/34
Filed: 1930-06-30
Abstract: 356,354. Weft-feeler arrangements for stopping looms. SLINGER, W., 10, Wilson Street, Foulridge, near Colne, Lancashire. June 30, 1930, No. 19768. [Class 142 (i).] A device for stopping the loom slightly before the weft on the cop is exhausted comprises an iron bracket Dl to which are pivoted spring-controlled levers E2, B, and in which slides a spring-controlled . rod D2 adapted to be pressed back by engagement with the weft on the cop and to move a catch A adjustably mounted thereon out of the path of a depending catch on the lever B. Normally, the lever E2 is turned by a bumper K1 on the lay and a loose catch F1, Fig. 5, engages beneath a pin F2, and turns the lever B. If there is sufficient weft on the cop, the catch A is pushed back to allow the .lever to resume the position shown in Fig. 1, and on the return movement of the lay, the catch F1 rides idly over the top of the pin F2. If, however, the weft is substantially exhausted, the catch A remains to the left and causes the lever B to remain in the position shown in Fig. 3, and a rod G2 on the lever B allows connections to the weft fork or weft hammer to fall into position for stopping the loom.
Patent GB-243286-A (GB)
Title: Improvements in locks
IPC: E05B19/08
Filed: 1925-08-06
Abstract: 243,286. Simonowitz, B., and Fischer, J. Aug. 6, 1925. Keys; keyholes.-A lock has two or more key- 'holes of different contour so that the hinged bit of the key requires manipulation to enter the slotted barrel inside the lock. An escutcheon plate 20 has an L-shaped keyhole 21 requiring the articulation of the hinged part 25 of the key-bit 24 before the key can enter. After the key has passed into the keyhole 21 it is turned through 90‹ so that the bit 24 is vertical and the part 25 is in alignment therewith under the influence of gravity. The bit can then enter the second keyhole 12 in the cover-plate 11. When fully inserted, the key enters a split barrel 14<1>, the two wings 16 of which extend on either side of the bit and hold it rigid while it is actuating the lock mechanism. As the key-bit 24 enters the slot 15 in the reduced part 14 of the barrel when inserted into the first keyhole 21, the barrel is held in the correct position by a blade spring acting on the flat 18 in the barrel 14'. A stop 26 on the key limits the freedom of the bit 25 in one direction. The key-bit is positioned for withdrawal from the keyhole 21 by the cam-face 22 of a slot cut in the cover-plate 11.
Patent GB-827579-A (GB)
Title: An improved oxonation process
IPC: C07C29/16
Filed: 1958-06-20
Abstract: Primary alcohols having 2n+2 carbon atoms per molecule are prepared from olefinic compounds having n carbon atoms per molecule, by contacting the olefinic compound with a cobalt carbonylation catalyst in the presence of hydrogen, carbon monoxide and an oil-soluble organic compound of a metal of Groups IA, IIA or IV of the Periodic Table, at elevated temperatures and pressures, withdrawing an aldehyde product and catalytically hydrogenating the aldehyde to obtain a primary alcohol.  The oil-soluble organic compounds which are used are the oil-soluble compounds or complexes of lithium, sodium, potassium, beryllium, magnesium, calcium, strontium, barium, titanium, zirconium, hafnium, thorium and lead.  Suitable oil-soluble compounds are, for example, the salts of oleic, stearic, naphthenic and linoleic acid; complexes with diketones such as acetylacetone; alcoholates of fatty alcohols such as decyl and tridecyl alcohols and organic esters of the Group IV metal acids, e.g. tetra-alkyl titanate. The carbonylation process is preferably carried out at 200-400 DEG  F. and 2500-3500 p.s.i.g. in the presence of a cobalt catalyst. As a modification of the process the treatment with the oil-soluble compound may take place immediately after the carbonylation.  In the examples beryllium acetyl acetonate, magnesium oleate, lithium oleate, potassium oleate, sodium stearate, thorium acetylacetonate, tetrabutyl titanate and lead stearate are used for the conversion of C7 olefines to C16 alcohols.
Patent GB-1579247-A (GB)
Title: Glue composition
IPC: C09J189/00
Filed: 1977-05-11
Abstract: The preparation for the production of emerys and abrasives contains bone glue in combination with at least one polyalkylene oxide having a molecular weight of greater than 50,000. Preferred polyalkylene oxides are polyethylene oxides. The proportion of polyalkylene oxide is 0.1 - 10 % by weight, based on the dry weight of the glue. Compared with known additives for improving the flexibility, polyalkylene oxides have no tendency towards migration out of the glue, so that improved permanence of the flexibility of glued joins and glue films can be achieved, and these have no tendency, or a significantly reduced tendency, toward embrittlement.
Patent GB-1282209-A (GB)
Title: Improvements in and relating to number arrays
Inventor: HAMPSON GEORGE ROGAN
IPC: G09B1/20
Filed: 1970-04-24
Abstract: 1282209 Teaching numbers G R HAMPSON 24 April 1970 19858/70 Heading G5G An array device for educational purposes comprises a plurality of rows of blocks 6 pivotally mounted on members 4 fixed in a support 1, stops 3 being provided to limit the pivoting of the blocks, the arrangement being such that the blocks may be pivoted to display an alternative numeral or numeral in a different colour. Two stops 3 may be provided (Fig. 3, not shown), the pivots 4 for the blocks being off-centre. Alternatively, the blocks 6 may abut against a backing sheet in one position in which case the rear stop 3 is omitted. Preferably 10 rows of 10 blocks 6 are used to display numerals 1-100 (or 0-99) or the products and/or sums of numbers from 1-10 (or 0-9).
Patent GB-1075697-A (GB)
Title: Dispensing box
IPC: B65D83/04
Filed: 1965-05-11
Abstract: 1,075,697. Dispensing containers. SOCIETE PARISIENNE D EXPANSION CHIMIQUE S.P.E.C.I.A. May 11, 1965 [May 14, 1964], No. 19881/65. Heading B8P. A dispensing container comprises a lid 1 and a base 2, the lid or the base having a partition 7 integral with it and a dispensing member 3 slidably mounted between the partition 3 and an outer wall of the container with a pill receiving recess 9 which is aligned with a gap 14 in the partition 7. The recess 9 houses only one pill at a time which is dispensed by the member 3 when the member is slid out of the container by means of a button 5. The member 3 also has a compartment 8 which may contain absorbent material, e.g. silica gel. The dispensing container may be triangular, segment-shaped or circular, Figs. 3, 4 and 5 (not shown). Adhesive tape may be wound round the container. A protuberance 16 may be provided to detect tampering. The container parts may be moulded from plastics, e.g. polystyrene.