baber/WOPTO huggingface dataset:
Patent GB-513693-A (GB)
Title: Improvements in or relating to television receivers
IPC: H04N5/74
Filed: 1938-04-12
Abstract: 513,693. Light modulating; television ; cathode-ray tubes. SCOPHONY, Ltd., and ROSENTHAL, A. H. April 12, 1938, No. 11200. [Classes 39 (i) and 40 (iii)] In a television receiver an image screen 9, Fig. 1, composed of a heterogeneous medium of the type described in Specification 473,061, is scanned by a beam of cathode rays intensity modulated at the electrode 3 by the received signals. This produces corresponding shifts in the dispersion curves of the component materials from point to point of the screen, which is illuminated from a lamp 11, the light passing through it to a viewing screen 12. Either the extraordinary or the ordinary ray is blocked and the remaining ray utilized to form a picture. The electrode 10 may be opaque and reflecting if it is desired to use reflected light. In Fig. 1 an optical stop 14 blocks the ordinary ray but the separating means may alternatively comprise polarizers placed before and after the screen. A semi-transparent electrode 10 such as a metallic layer or a mosaic of metallic particles is arranged on the wall of the container 8 of the medium 9. This layer may have high secondary electron emission properties, adjacent particles having different emission powers if the Kerr effect is utilized. Thermostatic means may be provided to maintain the screen at a given temperature. Either a white or coloured light source 11 and a suitable light filter 16 are used. A second electrode 18 maintained at a suitable potential relative to the electrode 10 is used in embodiments utilizing the Pockels effect. In a second embodiment, Fig. 2, wires 17 from the scanned electrode enter the medium 9, interlacing wires 18 entering the medium from the other side. The wires 17 are heated when the cathode ray impinges on them to produce local heating and corresponding shifts in the dispersion curves, or the wires 18 may be maintained at a constant potential and local electric fields produced between the wires 17 and 18 to produce the same effect as the electrode is scanned. Alternatively the Faraday effect may be utilized by placing solenoids having their axes parallel to one another in the medium. The action of the cathode-ray beam in influencing the refractive indices of the components of the medium may also be due to the apparent birefringent effects produced in crystal particles by orientation or piezo-electric deformation. The invention can be used for colour television in the way described in Specification 473,061, the cathode ray beam being modulated in accordance with the colour values of the transmitted picture points while the signals representing their black and white content modulate a light valve through which the colour screen is viewed or projected.
Patent GB-111118-A (GB)
Title: Improvements in or relating to Spikes.
Inventor: BALFOUR EVA LOUISA DULCIE BAGG
IPC: E01B9/06
Filed: 1916-08-10
Abstract: 111,118. Balfour, E. L. D. B. Aug. 10, 1916. Spikes for securing rails to sleepers are provided with a succession of notches 4, 6, 16 on one side of the shank and a succession of shoulders 9, 10 on the other side. The shank is plain for some distance beneath the head, and is formed with a chisel-shaped point so arranged as to cause the spike to bend on entering the sleeper, Fig. 3.
Patent GB-450116-A (GB)
Title: Improvements relating to work conveyors for electroplating and like apparatus
IPC: B65G49/04
Filed: 1935-04-12
Abstract: 450,116. Endless chain conveyers. CANNING & CO., Ltd., W., and POUGHER, C. F., 133, Great Hampton Street, Birmingham. April 12, 1935, No. 11345. [Class 78 (i)] In work conveyers for electroplating and other like apparatus in which the work pieces are suspended by holders c from a long conveyer chain a common to all the baths, and in which the lifting of the holders out of one bath and the lowering into the next bath is effected by a transfer chain h, the chain h passes round a large sprocket l and smaller sprockets m disposed as shown and is provided with a laterally projecting arm g for engaging in turn each work holder which is mounted on a slide o carried by a rotary guide p. Each work holder c, Fig. 2, has two horizontal members, one of which has a spigot i for engaging a socket x on the chain a, and the other of which is provided with a roller j which runs on a track k. The upper end of the work holder has an inverted cup e to receive a roller f on the end of the arm g. In order that compensation may be effected for slight stretching of the chains, the arm g is mounted rotatably by an eccentric q, Fig. 5, in a clip r secured to the chain h. Adjustment of the driven sprocket m. relatively to its driving shaft s is effected by screws v, Fig. 1. These screws are mounted in arms t fast on the shaft, and engage opposite sides of a projection u on the sprocket which is free on the shaft.
Patent GB-1044302-A (GB)
Title: Improvements in or relating to the production of 19-nor-í¸-androstene derivatives
IPC: C07J1/00
Filed: 1963-03-22
Abstract: The invention comprises (1) a process for the production of 17a  - ethynyl - 19 - nor -D 4-androsten-17b -ol-3-one or an acylate thereof which comprises treating the acetate of D 5-androsten-3b -ol-17-one by the processes described in Specification 1,044,303 to give the acetate of 5a -bromo-17a -ethynyl-6b ,19-oxido-androsten - 17b  - ol - 3 - one, reacting this with a metal having an oxidation potential neighbouring that of zinc in a lower aliphatic alcohol, treating the resulting products with an acid, reacting the resulting novel 17-acetate of 17a -ethynyl - D 4 - androstene - 17b ,19 - diol - 3 - one with an excess of Jones' reagent, treating the obtained novel 17-acetate of 17a -ethynyl-D 4-androsten - 17b  - ol - 3 - one - 19 - oic acid with a mineral acid, saponifying the resulting acetate of 17b  - ethynyl - 19 - nor - D 4 - androsten - 17b -ol-3-one with potassium hydroxide in a water methanol solution, and optionally acylating the 17b -ol with the required acylating agent.  The acyl groups are derived from hydrocarbon carboxylic acids containing less than 12 carbon atoms which are optionally substituted.
Patent GB-478732-A (GB)
Title: A process for the manufacture of insecticides or fungicides
Filed: 1936-04-21
Abstract: Aqueous emulsions of insecticides and fungicides for treating plants are made with the use as emulsifying or wetting agents of inorganic or organic salts of acid sulphuric acid esters derived from secondary or tertiary alcohols, particularly those having 10 to 20 carbon atoms in the molecule.  Alkaline or alkaline earth salts, or salts derived from nitrogen bases such as those separated from the acid tar from cracking benzene refining, are suitable.  The acid sulphuric ester may be prepared from secondary or tertiary alcohols in known manner, or olefines obtained by cracking paraffin wax in the vapour phase may be converted directly into the esters by sulphuric acid treatment. According to an example, paraffin oil is emulsified in an aqueous solution of casein and sodium salts of acid sulphuric esters derived from a mixture of secondary alcohols with 13 to 18 carbon atoms.  The use of an ester derived from cholesteryl alcohol is also referred to.ALSO:Organic or inorganic salts of acid sulphonic acid esters of secondary or tertiary alcohols are used as wetting and emulsifying agents in the preparation of aqueous emulsions of insecticides and fungicides for treating plants.  Esters of alcohols having 10 to 20 carbon atoms per molecule are suitable and the salts may be those of alkalis or alkaline earths or of nitrogen bases such as those separated from acid tar from cracking benzene refining.  The esters may be prepared from the alcohols, such as cholesteryl alcohol, or olefines obtained by cracking paraffin wax in the vapour phase may be converted directly into the esters by sulphuric acid treatment. According to an example paraffin oil is emulsified in an aqueous solution of casein and sodium salts of acid sulphuric acid esters derived from a mixture of secondary alcohols with 13 to 18 carbon atoms.
Patent GB-591378-A (GB)
Title: Improvements in or relating to the forming of articles from wire, machines for use for such purpose, and articles so produced
IPC: B21F45/12
Filed: 1945-05-05
Abstract: 591,378. Making fish-hooks. MELLERIO, L. P. (Shoe Form Co., Inc.). May 5, 1945, No. 11490. [Classes 83 (ii) and 83 (iv)] [Also in Group XXIII] A machine for making fish-hooks has a turret for moving blanks to the operating tools. Straightening.-The wire is fed through a flier 76, Fig. 11, with grooved pins 84 rotated by a belt 92 and oscillated along the wire by links 94, 100 from a shaft 108. Wire feed.-A slide carrying a fixed jaw 26 and a pivoted jaw 24, Fig. 12, is reciprocated by an adjustable crank-pin 105. Rearward movement is prevented by a wire engaging plunger 128 reciprocated from the shaft 108. Shearing.-A disk cutter 28, Fig. 12, is swung about a shaft 138 by a cam on the shaft 108 to sever the wire. The blanks are pushed to a shoot 32 by fingers 148 projected by a rod shaft 150 and fall between guides on a work table 34. Grinding. - The blanks are fed along the work table by fingers 184, Fig. 15 on a chain 180 and are rotated by a belt 194 backed by springs 206. Belt and chain are driven from the shaft 108. The blanks pass over adjustable belt-driven grinding wheels which form a long taper, a point and remove the shoulder respectively. The blanks then drop on to plates 274 on an oscillated arm 272 which present them to chucks 44 on a turret 46. Rotary work - carrier. - On the turret 46, Fig. 15, are sixteen chucks 33, each comprising grooved sleeve 320 and a clamping disk 324. The blanks are clamped with light pressure by a spring 332 and the pressure is increased after leaving the receiving station by fixed pins 345 rotating a screwed sprocket 330. After work operations the pressure is released by pins 346. The clamps are turned 90 degrees by a cam engaging a plate 347 on the sleeve. The turret is intermittently rotated by a pawl 294, Fig. 4, on a cam retracted slide actuated by a spring 310 on the working stroke. The turret is locked by a cam actuated pin 312. Eye forming.-The turret positions the blank across a groove 362, Fig. 22, and a cam actuated head 364 is depressed to form an initial groove. A cam-actuated slide 376 with rounded recess 386 then moves transversely to convert the groove into an eye. Barbing by cutting.-A fixed cam engages the eye and rolls the blank 90 degrees and a blade on a pivoted carrier is'rocked to form the barb, Angular bending.-At station 44, Fig. 25, the blank is positioned under an anvil 436 and one tool 446 is swung about a shaft 458 and a second tool 472 about a shaft 478 to bend the hook about the anvil. The blank is then fed to station 56, where a pin 498 is rocked about a shaft 502 to slightly reverse bend the barb. Forging.-Flats are swaged at station 58 by pivoted tools 508, Fig. 26, on a carrier raised by a cam 526 to straddle the blanks, and then closed by a cam 530 to effect swaging. At station 60 mechanism similar to that shown in Fig. 26, slightly bends the hook relatively to the shank.
Patent GB-1206677-A (GB)
Title: Telecommunication exchange line circuit
Inventor: DAWSON JOHN
IPC: H04Q3/42
Filed: 1968-03-08
Abstract: 1,206,677. Automatic exchange systems; transistor switching circuits. ERICSSON TELEPHONES Ltd. 3 March, 1969 [8 March, 1968], No. 11515/68. Headings H3T and H4K. A line circuit comprising MOS transistors is arranged to effect a persistence check on hookswitch signals. The Figure shows part of the circuitry associated with a subscribers line, that portion within the broken lines (which extend on to Figure 1b, not shown) being an integrated circuit formed on a single semi-conductor chip. The circuit includes two terminals M7 and M8 which are pulsed in sequence by the exchange to scan the associated subscribers line. If the hook-switch 4 is closed when both pulses arrive and was not closed during the previous scan the circuit recognizes that the receiver has been lifted to initiate a new call and operates a relay LR discharging a capacitor (not shown) over a line to the exchange indicating this fact. Thus discrimination against noise is effected in the line circuit by a persistence check. The pulse from the discharged capacitor causes at the exchange the calling subscribers number to be generated in known manner. The exchange in return closes a contact in the circuit which returns over the contact a "line awaiting connection" potential. When a path through the exchange switches has been established, the line comprising legs 1 and 2 is connected to the path and the private wire (not shown) is marked engaged preventing the capacitor recharging. The line circuitry associated with more than one line may be formed on a single chip. "Detailed operation".-The portion of the circuit shown includes passive MOS transistors such as R1 having a direct connection between the base and the drain and used as resistors, and active MOS transistors such as M1. In the quiescent (on hook) condition of the line, M2 conducts supply inhibiting earth potential to the bases of M6 and M14 over a conductor 10 while M1 is blocked allowing negative enabling potential to be supplied over R 1 and a conductor 9 to the bases of M5 and M13. When a first scanning pulse arrives switching M7 to conduction M5 conducts causing M4 to be blocked and M3 to switch to conduction (M3 and M4 being cross-coupled to form a bi-stable circuit). An enabling negative potential is thus supplied over a conductor 12 to the base of M11 while inhibiting earth is supplied over a conductor 11 to the base of M12. If when the second scanning pulse arrives switching M8 to conduction the receiver is still on hook (i.e. M2 is still conducting) M11 and M13 both conduct switching M9 to conduction and M10 off, M9 and M10 forming a second bi-stable circuit. Conduction of M9 supplies inhibiting earth to M15 preventing operation of the relay LR. When the receiver is lifted M1 switches to conduction, on arrival of a scanning pulse at M7, M4 switches to conduction and on arrival of a scanning pulse at M8, M10 switches to conduction causing M15 to conduct and relay LR to operate, if the off-hook condition persists at this time.
Patent GB-481059-A (GB)
Title: Process for the reduction of sulphur dioxide to elemental sulphur
IPC: C01B17/04
Filed: 1937-04-22
Abstract: Sulphur dioxide is passed through a reducing bed of carbonaceous fuel and in the upper part of the bed, the temperature is allowed to drop, e.g. to about 700 DEG  C., by heat-exchange with the incoming gases or by other means, whereupon the sulphur and carbon monoxide formed in the furance combine to form carbon oxysulphide.  The gases are further cooled, e.g. to 500 DEG  C. still higher in the furnace or in an external chamber, which may be filled with a suitable catalyst, such as refractory brick, until substantially all of the sulphur first formed is converted into carbon oxysulphide.  To assist this conversion, carbon monoxide may be injected into the furnace, or an oxidizing gas or carbon dioxide, such as the exit gas from the process, may be admitted into the upper part of the furnace where it reacts with the fuel to form carbon monoxide and assists in the cooling of the bed.  The resulting carbon oxysulphide is then freed from impurities and converted into sulphur by reaction with a further quantity of sulphur dioxide in the presence of a catalyst such as bauxite.  Any carbon monoxide present also reacts with the added sulphur dioxide to form sulphur.  The process may be applied particularly to sulphurous gases from ores containing arsenic, antimony or other similar compounds.  After the formation of carbon oxysulphide, these impurities are separated as sulphides on cooling.
Patent GB-543891-A (GB)
Title: Improvements in and relating to mats and other woven or like articles and apparatus for use in the production thereof
IPC: D03D29/00
Filed: 1940-07-11
Abstract: 543,891. Hand apparatus for making lace. GRAY, G. H. July 11, 1940, No. 11560. Drawings to Specification. [Class 74 (i)] Mats for tables or other use, rosettes, cockades, buttons &c. are made on a square, annular or polygonal flat frame furnished with removable pegs around which is wound yarn &c. As the winding proceeds, some of the lengths are cut to provide fringes and ornamental spaces, the remaining pieces of yarn being bound together at crossing points. The finished mat is removed by cutting or by withdrawing the pegs.
Patent GB-283126-A (GB)
Title: Improvements in blow-off valves
IPC: F16K3/26
Filed: 1927-04-30
Abstract: 283,126. Yarnall-Waring Co., (Assignees of Yarnall, D. R.). Jan. 4, 1927, [Convention date]. Piston and tubular valves.-In blow-off valves comprising a valve casing with inlet and outlet openings, one of which is lateral and the other axial, and an axially movable cut-off sleeve with one or more lateral openings, annular packing in the casing below the lateral opening is placed at such a distance therefrom that the opening in the sleeve will be closed against fluid passage before exposing the packing. The valve casing 4, Fig. 2, is bored to form a seating for lower packing 8 held in place by a liner 9 apertured at 10 at the level of the inlet 11 and surrounded by a channel 12. Upper packing 14 is compressed by a sleeve 15 held in place by a yoke 16 secured by bolts 17. The tubular valve member or sleeve 24 is secured to a body part 23 guided by lugs 25 and in threaded engagement with the operating spindle 21. As shown, the valve passage is closed before the packing 8 is uncovered by the orifices 27 and 31 protecting the packing when the valve is open and the casing 4 being of sufficient length to house the sleeve when the valve is closed. In the form shown in Fig. 4, the sleeve 24<1> terminates in a closed end 23<1> into which the stem 21<1> is screwed and pinned. A flange 33 on the valve member engages an annular shoulder 34 in the lining 9 to increase the pressure in the packing 8 when the valve is closed. In another form. Fig. 6, the lining 9
 terminates in a flange and is tightened by screws 35, the upper part of the casing being sealed by packing 14<3> between the yoke 16<3> and an annulus 38. The valve member 24<3> is actuated through a cylinder 39 in threaded engagement with the operating spindle 21<3>, being connected to the cylinder by a stud 40 the head of which is held between the end 42 of the valve member and a collar 43 threaded thereinto, the flange of the collar 43 transmitting additional pressure to the packing 8 in the closure position. In a modification of this form the valve member is directly pinned to the operating stem. In another form, the valve member is formed with a single aperture co-operating with a single inlet port. In all the forms the valve inlet is completely closed before the packing 8 is exposed. Specification 202,955 is referred to.
Patent GB-103809-A (GB)
Title: An Improved Steel Alloy.
IPC: C22C38/22
Filed: 1916-08-16
Abstract: 103,809. Stahlwerke R. Lindenberg Akt.-Ges. Jan. 26, 1916, [Convention date]. Alloys.-A steel alloy for use as a high-speed steel contains 0.5 to 0.8 per cent of carbon. 0.2 to 0.4 per cent of manganese, 0.2 to 0.4 per cent of silicon. 6 to 10 per cent. of molybdenum, and 3 to 6 per cent. of chromium. According to the Specification as open to inspection under Sect. 91 (3) (a), the percentage of molybdenum may be 0.5 to 10. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1341741-A (GB)
Title: Apparatus and method of filtration
IPC: B01D24/46
Filed: 1971-04-27
Abstract: 1341741 Filtering apparatus ECODYNE CORP 27 April 1971 [12 May 1970] 11629/71 Heading BID Liquid is delivered by conduits 44, 46 to a first filter chamber and filtered downwards through sand and/or anthracite bed 26, then flows through conduit 54 to upper storage chamber 18 whence it flows over weir 62 and down conduit 64, 66 to second filter chamber 16 where it filters downwards through bed 29 and is delivered to service via conduit 74. The liquid may be oil or sugar solution but is typically water, and bed 29 may comprise active carbon or ion exchangeresin. The beds 26, 29 are independently cleaned by reverse flow of air from blower 94 followed by liquid from chamber 18 as illustrated by Figs. 2, 3, 4 (not shown) for the first filter. Cleaning is initiated by a timer or by switches 88 responding to rising pressure above the respective beds,- and the cleaning sequence controller 92 includes arrangements to prevent both filters being cleaned at once. Conduits 46, 66 have air vents 106, 108 with non-return valves. Outlet conduit 74 is constructed as a siphon with an air vent valve 80 controlled by a level detector 79 to prevent the liquid level in filter chamber 16 ever falling below the top of bed 29. Drain outlet 58 in filter chamber 14 drains liquid from above bed 26 as a first step in the cleaning cycle.- Inlet head device 40 could be replaced by a pump. Some other gas than air could be used in cleaning.
Patent GB-275316-A (GB)
Title: Improvements in or relating to tanks, vats, pits or the like
IPC: B29C70/68
Filed: 1926-05-03
Abstract: 275,316. Swindin, N. May 3, 1926. Tanks and cisterns.-Tanks, vats, pits. &c.. made of wood, brick, tile, or like materials are lined with cement, plaster, or similar cementitious material to which rubber latex has been added; after this mixture has set a layer of sheet rubber is secured to it by means of rubber solution.
Patent GB-926778-A (GB)
Title: Improvements in and relating to filters for liquids
Inventor: ANNETT JOHN FREDERICK
IPC: B01D37/02
Filed: 1961-03-30
Abstract: 926,778. Filters. METAFILTRATION CO. Ltd. Jan. 17, 1962 [March 30, 1961], No. 11659/61. Class 46. A filter comprising a division plate 1 equipped with at least one filter element separating inlet and delivery chambers, has a fluted or channeled filter element support member 2 with a tubular jacket 3 braided in e.g. copper or bronze wire and stretch-shrunk thereon. A sock 9 of filter septum of e.g. a woven monofilament material such as nylon fits over the jacket and is secured thereon by a ring 10. The jacket is closed at one end by a cap 4 and is encircled at the other end by an apertured cap 5, which has an inturned radial edge 6 with notches 7 so that the cap can be slid over the support member and be rotated in corresponding notches 8 in flanges of the support member as a bayonet fitting. The cap 5 is held against the division plate, with a gasket 11 between them, by a spring 12 which abuts the division plate and a split pin 13 passed through the support member. In this embodiment the support member is formed of a Y section rod thus providing adequate drainage channels to permit a large flow during backflushing. The division plate may be covered with a layer of corrosion resisting material 14. The gasket may be replaced by a ring of rubbery material, when the spring 12 becomes superfluous, held by a wedge-shaped cotter.
Patent GB-1382303-A (GB)
Title: Voltage stabilisation circuits
IPC: G05F1/613
Filed: 1972-03-14
Abstract: 1382303 Automatic voltage regulation SIEMENS AG 14 March 1972 [22 March 1971] 11722/72 Heading G3X A voltage stabilizing circuit includes a transistor with its base-emitter path connected in parallel with a resistor and in series with a reference element.  In the circuit shown, the reference element comprises six serially-connected diodes 1-6. An unstabilized D.C. source is connected by a terminal 9 to series resistors 7, 8 and a pre-stabilizing transistor 10 which ensures a constant current passing through the diodes 1-6 irrespective of variations in the supply voltage. A first stabilized output voltage is produced at a terminal 15, and further stabilized voltages with low output  impedances may be obtained at terminals 16, 17 through emitter follower transistors 11, 13 respectively. In other embodiments, Figs. 2, 3 (not shown), the diode chain 1-6 may be replaced by two diodes and a Zener diode, or a single Zener diode. The arrangement may be constructed as an integrated circuit.