baber/WOPTO huggingface dataset:
Patent GB-1474288-A (GB)
Title: Pcm tdm telecommunications system
IPC: H04Q11/04
Filed: 1974-08-06
Abstract: 1474288 Automatic exchange system SIEMENS AG 6 Aug 1974 [14 Aug 1973] 34502/74 Heading H4K A telecommunication system includes a P.C.M. T.D.M. communication loop coupled to the system at an end exchange, said end exchange being adapted to transmit over the loop the addresses of subscribers currently involved in connections over that loop, each address being followed by a modulated bit group and an unmodulated bit group, each subscriber station on the loop responding to its address and modulating the associated unmodulated bit group in accordance with data to be emitted to the end exchange. An outgoing call from the station shown is initiated as follows: at least one channel is allocated to scanning for calling condition, the subscriber addresses being transmitted in turn one per frame. If a subscriber removes his handset h a decoder D responds to that subscriber address setting a bi-stable K2. This enables an inhibit gate Vsp diverting the loop via a now closed switch S3 and an address modulator which modulates the subscriber address generated at A on to the following unmodulated bit group. The end exchange (Fig. 2, not shown) detects this address and stores it in a storage location associated with a free channel. Thus that substation is addressed in each subsequent frame, decoder D enabling a flip-flop K3 at this time. Flip-flop K3 actuates inhibit gate Vsp and switch S4 to divert unmodulated bit codes via the dial signal modulator WM. Digits or a coded subscriber address dialled at W are thus transmitted to the exchange. During the connection decoder D responds to the subscriber address actuating in turn switch S1 to route an incoming modulated code to the demodulator and receiver and a switch S2 to gate modulated "unmodulated" bit code by signals from the microphone to the line. When the handset is on-hook bi-stable K1 is connected to a visual or audio calling device.
Patent GB-655365-A (GB)
Title: A new composition and process for the lacquer and linoleum industry
IPC: C09D121/00
Filed: 1947-12-30
Abstract: A material suitable for use in the lacquer, linoleum, synthetic resin and synthetic leather industries is obtained by heating a mixture consisting of 30-90 per cent by weight of natural rubber, gutta-percha or balata with oils and/or fats, other than mineral oils and fats, or the fatty acids obtained therefrom at a temperature above 200 DEG  C. alone or dissolved in a neutral solvent, p  until little or no gases or vapours escape.  The oils may be olive oil, nut oil, fish oil, castor oil, cocoa-fat, animal fat, suet or lard.  The material may be further modified by treating, optionally in a solvent such as toluene, carbon tetrachloride or xylene, with oxygen, a halogen, sulphur chloride, chloro-sulphonic acid, sulphuric acid, organic sulphonic acid chlorides or nitric acid.  Driers such as cobalt resinate or manganese linoleate and neutralizing agents such as caustic soda and hexamethylene tetramine may also be added.ALSO:A material suitable for use in the lacquer, linoleum, synthetic resin and synthetic leather industries is obtained by heating a mixture consisting of 30-90 per cent by weight of natural rubber, such as crepe, or smoked sheet, guttapercha or balata, with oils and/or fats, other than mineral oils and fats, or the fatty acids obtained therefrom at a temperature above 200 DEG  C., alone or dissolved in a neutral solvent, until little or no gases or vapours escape.  The oils may be olive oil, nut oil, fish oil, castor oil, cocoa-fat, animal fat, suet or lard.  The material may be further modified by treating, optionally in a solvent, such as toluene, carbon tetrachloride or xylene, with oxygen, a halogen, sulphur chloride, chlorosulphonic acid, sulphuric acid, organic sulphonic acid chlorides or nitric acid.  Driers such as cobalt resinate or manganese linoleate, and neutralizing agents such as caustic soda and hexamethylene tetramine may also be added.
Patent GB-378301-A (GB)
Title: Improvements in machine for turning bearing balls
IPC: B21H1/16
Filed: 1931-12-14
Abstract: 378,301. Turning balls. VUILLE, G., 58, East Main Street, Plainville, Connecticut, U.S.A. Dec. 14, 1931, No. 34616. [Class 83 (iii).] Tools.-Balls are shaped while travelling along a path bounded by two helically grooved conveyer rolls and two confronting cutters to which they are fed by a pipe. Roughly formed blanks roll from a hopper 2 by gravity and through a feed tube 3 from which they pass to the helical grooves 9, of which the first thread 10 is slightly deeper than the remainder, and are fed axially of the rolls while acted on by cutters 11, 12. The rolls are driven through gearing in the same direction from a main drive pulley 77, which may also actuate a pump 65 for lubricant upon operation of a clutch 75. Lubricant is fed to a channel 68 and, through perforations 69, on to the work, the base 18 of the machine being of trough form to collect the liquid and return it to the reservoir for the pump. The left-hand roll is journalled in bearings 21 resiliently pressed towards the other roll by a spring of adjustable tension, stops 29 determining the inner position corresponding to the final size of the work. The cutters have teeth on both edges and are reversible in their holders. The upper cutter 11 is mounted in a slot 33 of a bridge 34, bifurcated at its left-hand end, Fig. 5, for the passage of the tube 3, and resiliently pressed towards the other cutter by springs 47, through straps 44 and adjustable bolts 48. The final position of the cutter and therefore the reduction in diameter of the balls, is determined by screwed stops 39, 40. The lower cutter is secured in split holders 50 retained in brackets 51 by clamping pieces 54. After leaving the rolls the balls pass through a pipe 6 to a gauge 7 comprising bars 55 between the opposed edges 58 of which finished balls may drop and be collected, while oversize balls roll down into the hopper 2 to be again returned to the rolls and cutters. The gauge 7 is adjusted by a micrometer and toggle levers.
Patent GB-499685-A (GB)
Title: Illuminated sign
IPC: G09F13/26
Filed: 1937-12-15
Abstract: 499,685. Illuminated signs. STOETE, C. J. Dec. 15, 1937, No. 34703. Convention date, Sept. 10. [Class 3 (ii)] In an imitation neon or like sign, characters 7 formed on a glass 5 in a layer 6 of coloured or black dye, are backed by similar characters 4 of smaller dimensions formed in a reflecting layer 3 of white dye on an opal layer 1 integral with a clear glass 2. The layer 3 is rendered opaque by a layer 3a of black dye or the like. Two signs 14 may be arranged in V-formation in a casing 8, Fig. 3, being illuminated by a lamp 10 in a reftector 12. Specification 344,352 is referred to.
Patent GB-613530-A (GB)
Title: Thermionic tube amplifier automatic regulating system
IPC: H03G7/02
Filed: 1945-12-21
Abstract: 613,530. Automatic gain control. HOWARD, R. V. Dec. 21, 1945, No. 34719. Convention date, July 19, 1944. [Class 40 (v)] A slow acting A.V.C. system is combined with a fast acting A.V.C. system which operates only when the signal level is above a predetermined value. The invention is described for an audio-frequency channel comprising an input transformer T1, amplifiers 6K7 and an output transformer T2 feeding through an attenuator R5 to output terminals 4. Energy is fed from the input to an A.G.C. amplifier 5 feeding a double diode 6H6-1 having a load resistor R15, R16. A voltage-taken from tap 8 is fed to control the gain of amplifier 5. The full voltage across R15, R16 is fed through the upper diode in 6H6-2 to charge a condenser C6 shunted by high resistance R17, while the partial voltage across R16 is fed through the lower diode in 6H6-2 to charge a condenser C7. Condensers C6, C7 are connected by the upper diode in 6H6-3 and resistance R26. The voltage on condenser C7 is taken at point 10 and fed at point 12 to control the gain of the main amplifying channel. When the signal is increasing, the negative voltage on condenser C6 is greater than that on C7, and the gain of the amplifier is steadily reduced by the voltage on C7. If the signal falls, the gain remains steady, as C7 has no leak, until the voltage on C6 has reduced due to R17 so as to be less than that on C7. At this point, the upper diode in 6H6-3 conducts and condenser C7 then also discharges through R17 and the gain of the main amplifier rises at a rate determined by R17, the device giving a slow acting A.G.C. If, however, the signal ceases, the gain rises to a maximum in about 10 seconds, and the system is not sufficiently quick-acting to deal with a high signal level as soon as the input is restored. To deal with this, a quick-acting A.G.C. system 6 is supplied from the output of the main channel through transformer T5 which, through a triode in 6SR7 and transformer T4, feeds balanced diodes in 6SR7 to provide a voltage which is fed through a diode D4 in 6H6-3 to charge condenser C7 and thus provide a gain control voltage until the normal system becomes operative. The diodes in 6SR7 are biassed so as to conduct only above a predetermined signal level and act only for a short time at the beginning of a signal. A slightly modified circuit producing a similar effect is also described (Fig. 2, not shown).
Patent GB-934561-A (GB)
Title: Improvements in or relating to boards for educational purposes
Inventor: GARDEN WILLIAM BROWNIE
IPC: G09B1/24
Filed: 1960-10-12
Abstract: 934,561. Endless-band educational boards. WILSON & GARDEN Ltd. Oct. 16, 1961 [Oct. 12, 1960], No. 34915/60. Class 146 (2). In a blackboard of the type comprising an endless band entrained over top and bottom rollers carried by a frame formed by spaced uprights, the bottom roller has plate 16 rotatably mounted on the ends of the spindle 12 of the roller. Each plate 16 carries a pawl 18 which engages a ratchet 22 attached to the associated wooden upright 14, thereby preventing movement of the bottom roller towards the top roller and maintaining a tension in the band. A second pawl 17 is used to hold the spindle of the bottom roller at the top of slot 13 in which it slides, while the band is entrained around the two rollers. The plate 16 is biased so that the pawl 18 is urged into engagement with the ratchet 22, a peg 23 being provided for manually releasing both pawls 17, 18, when required. In a second embodiment, Fig. 3 (not shown), the uprights are of hollow metallic form. In a third embodiment, Figs. 5 and 6 (not shown), the plate 16 is replaced by a guide plate 24 clamped in the required position by a screw clamp 27.
Patent GB-644301-A (GB)
Title: Sectional weaving loom
IPC: D03D37/00
Filed: 1946-11-25
Abstract: 644,301. Multiple looms. VANLAER, P..G. E. A. Nov. 25, 1946, No. 34923. [Classes 142(i), 142(ii) and 142(iii)] A loom comprises six vertical weaving sections disposed in the form of a hexagon round a central rotor which drives them. Weft is inverted by dummy shuttles which traverse all the section in turn, any section which is not working being byepassed. Weft inserting, Fig. 8.-After passing through a weaving section, a dummy shuttle 60 drops on to a rapidly rotating impellor 55 which accelerates it until a trap door (not shown) opens and allows it to escape along a channel 62 leading to the next weaving section. As it travels along the channel, a weft thread 90 located in a slot 61a is caught by a slit in the nose of the shuttle and drawn through the shed. Weft patterning, Fig. 8.-Bobbins of weft are mounted on a turntable 52 (one for each weaving section) which carries threads, in succession, through a slot 61 in the wall of the channel leading to the slot 61a. As the turntable rotates, the weft ends are dipped in wax to form blobs 91 which prevent the weft from pulling out of the shuttle. Weft cutting, Fig. 8.-A knife 80 at each end of the shed cuts the inserted weft. Shuttle race, Figs. 7 and 8.-The shuttle runs on a fixed reed 23, between two coil springs 65 into which the warp threads penetrate, so that the shuttle does not contact the warp. Beat-up motion, Fig. 7.-Flexible extensions 79 on an oscillating comb lift the weft towards the fell when it is beaten up by rigid teeth 24. Shedding mechanism. - The heald frames 17, Fig. 8, are operated by cams, common to all the weaving sections, on the central rotor. Disconnectable couplings between the cam followers and the heald frames enable shedding in any weaving section to be stopped and the heald frames moved by hand. Let-off mechanism, Fig. 2.-Warp is let off and taken back in accordance with its tension, which acts through a lever 14, 15 to engage a bevel gear 10 with one or other of driving gears 11, 12, a universal joint being provided at 9. Take-up mechanism; inspecting fabric.- The fabric is drawn upwards by nip rolls and passes down in front of an inspection board; it is collected in a bin 29, Fig. 2. Weft stop motion, Fig. 8.-As a weft thread is drawn into the shed, it deflects its guide 53. If the shuttle fails to take the weft, the guide strikes a mercury switch 86, which causes a flap 69 to divert the shuttle into a channel 70 which bypasses the shed; also, the turntable 52 and the take-up motion of the weaving section concerned are stopped and the shedding mechanism disconnected. Warp stop-motion, Fig. 2-A suction head 71 continually traverses across the warp and sucks broken threads against rods 72 carried by arms 77, thereby rocking the arms to operate mercury switches, which stop the weaving section and light a signal lamp. The suction head also removes fluff, and vibrates the warp to prevent the threads from sticking together.
Patent GB-989593-A (GB)
Title: Improvements in and relating to nuclear reactor plants
IPC: G21D3/10
Filed: 1963-09-05
Abstract: 989, 593. Nuclear power plant. SULZER BROS Ltd. Sept. 5, 1963 [Sept. 10, 1962], No. 35149/63. Heading G6C. A nuclear power plant comprising a reactor, a heat transfer fluid, a vapour generator and a load is controlled by adjusting the reactor power directly and immediately in response to a change in plant load, but controlling the flow rate of the heat transfer fluid according to the actual power output of the reactor. The principle advantage of this control method is that when a sudden increase in load occurs and the reactor is immediately adjusted, the heat transfer fluid temperature begins to rise. Thus the vapour generator will act as a heat accumulator and not be cooled by a sudden increase in flow from the reactor at a lower temperature. The power plant comprises a reactor 1 and a coolant circuit 3, 4, 5, 6, including a pump 7 driven either by a steam turbine 8 or an electric motor 9. The working fluid (water, steam) circuit includes a high pressure heating surface 11 which is connected through the turbine 8 to a low pressure heating surface 12 which supplies the generator turbine 23. In operation, any variation in fluid flow to the turbine 23 is sensed by a flow measuring device 31 which transmits a corresponding signal to a load control device 34, which transmits three signals, the first to a control unit 38 to adjust the reactor control rods 2, and the other two to working fluid control valves 16, 17, to adjust the flow to the vapour generator. Throttle valve 19 is only adjusted to vary the flow of primary coolant when the signal from a neutron flux detector 54 indicates that control rod adjustment has been made; this signal is integrated with signals corresponding to primary coolant outlet temperature and working fluid pressure. Incorporation of delay elements 70, 71 in signal lines 36, 37, results in a brief pressure drop in the working fluid circuit which allows an increase in vapour generation to be derived from heat stored in the system.
Patent GB-1504215-A (GB)
Title: Supporting sheets having mobile layers thereon
IPC: B41N6/00
Filed: 1975-08-26
Abstract: 1504215 Post-heating coated sheet IMPERIAL METAL INDUSTRIES (KYNOCH) Ltd 16 Aug 1976 [26 Aug 1975] 35202/75 Heading B2L [Also in Division B5] A mobile tacky layer on a sheet of ferromagnetic material, e.g. steel, is dried or cured by locating the sheet of ferromagnetic material on a support comprising a sheet of glass having a flat planar surface with a uniform thickness layer of magnetic material thereon, maintaining the sheet of glass horizontal and level and passing the sheet of glass and sheet of ferromagnetic material having the mobile tacky layer thereon through a drying oven at a temperature below the curie point for the magnetic material. The magnetic material may be a sheet of rubber containing permanently magnetic particles and may be bonded to the glass by means of double sided adhesive material.
Patent GB-343179-A (GB)
Title: Improvements in application of magnetic loading material to continuously loaded electric cables
IPC: H01B11/14
Filed: 1929-11-19
Abstract: 343,179. Cables. ELECTRICAL RESEARCH PRODUCTS., Inc, 195, Broadway, New York, U.S.A.-(Assignees of Legg, V. E.; 194, N. Oraton Parkway, East Orange, New Jersey, U.S.A.) Nov. 19, 1929, No. 35387. Convention date, May 31. [Classes 36 and 41.] A method of loading a conductor with very thin layers of magnetic material consists in electrolytically depositing magnetic material in sheet form and cutting the sheet into narrow tapes which are applied to the conductor. In one embodiment, tapes #-inch wide and cut from a sheet of electrolytically deposited magnetic material of thickness À00025- À002-inch are annealed and applied to a conductor in one or more layers. The composite conductor thus formed is then heat-treated and impregnated with a pressure-equalizing material, such as liquid bitumen, in the usual manner. The magnetic materials may consist of iron, nickel, and cobalt taken in any proportion, with or without the addition of materials for increasing the resistivity. The apparatus for the electrolytic deposition of a sheet of magnetic material may consist of a cathode formed by a cylinder having a surface of stainless steel or of polished brass treated with selenious acid or ammonium molybdate; the cylinder is adapted to rotate with a portion of its surface in an electrolytic bath. To prevent the deposited material from uniting too intimately with the cathode, the deposited sheet may be stripped off in a continuous piece. Specifications 188,287, 231,534, 253,078, [all in Class 36, Electricity, Con. ducting &c.], 255,025, [Class 40 (iv), Telephones &c.], and 273,638, [Class 82 (i), Metals, Extracting &c.], are referred to.
Patent GB-1059912-A (GB)
Title: Water soluble paint compositions
IPC: C08G8/28
Filed: 1963-09-06
Abstract: Water-soluble paint compositions are obtained by heating 5 to 30 parts (by weight) of alpha, beta-unsaturated dicarboxylic acids with 100 parts of a mixture of 20 to 70 parts oil-soluble novolac or resin-modified phenolic resin and 80 to 30 parts drying or semi-drying vegetable oil and reacting the resulting oil-modified phenolic resin with ammonia and/or water-soluble amines.  Numerous phenol-formaldehyde resins are specified including those obtained by modifying alkyl-benzene-formaldehyde resins with phenol or an alkyl or aryl phenol.  The aqueous solutions of the paint compositions may also include an organic solvent, e.g. mono- or poly-hydric alcohols and their ethers and ether-esters, and driers, e.g. Pb, Mn and Co naphthenates.  The products may be used in preparing clear paints, enamels, primers and putty.  In examples the compositions are painted on steel plates and baked at 140 DEG  or 150 DEG C.ALSO:Water-soluble paint compositions are obtained by heating 5-30 parts (wt.) of a , b -unsaturated dicarboxylic acids with 100 parts of a mixture of 20 to 70 parts oil-soluble novolac or rosin-modified phenolic resin and 80 to 30 parts drying or semi-drying vegetable oil and reacting the resulting oil-modified phenolic resin with ammonia and/or water-soluble amines.  Aqueous solutions of the compositions may also include organic solvents and driers.  They may be used to prepare clear paints enamels, primers and putty.  In examples solutions are painted on steel plates and baked at 140 DEG  or 150 DEG C.
Patent GB-467824-A (GB)
Title: The manufacture of new condensation products
Filed: 1935-12-21
Abstract: Intermediates for the production of dyes and pharmaceutical compounds are obtained when aromatic, trinuclear or tetranuclear, monoketo or ortho- or peri-diketo compounds are condensed with primary aromatic amines of the benzene series containing either no substituent or a methyl or methoxy group in the orthoposition and having a free para-position.  The condensation takes place with elimination of one molecule of water formed from the keto group of the monoketo compound or from one of the keto groups of the diketo compound and the hydrogen atoms in the para-position of 2 molecules of the amine. Examples are given of the condensation on the one hand of fluorenone, 2 - nitrofluorenone, 2 - aminofluorenone, fluorenone - 2 - sulphonic acid, benzofluorenone, acenaphthenequinone, phenanthrenequinone, chrysenequinone, fluoranthenequinone and aceanthrenequinone, and on the other of aniline, o-toluidine and o-anisidine; as condensing agents, dilute sulphuric, hydrochloric or phosphoric acid is employed.  The formulae of some of the products and starting materials are given.
Patent GB-783670-A (GB)
Title: Improvements in or relating to methods of making single crystals of ferrite
IPC: C30B7/00
Filed: 1955-12-09
Abstract: <PICT:0783670/III/1> <PICT:0783670/III/2> <PICT:0783670/III/3> <PICT:0783670/III/4> Ferrites, containing in addition to iron one or more other metals are formed by crystallizing the ferrite from a solution thereof in lead monoxide by gradually reducing the temperature at a rate less than 30 DEG  C. per hour.  According to an example a nickel ferrite was made by adding to lead monoxide powder a mixture of nickel and ferric oxides in stoichiometric proportions and heating the mixture in a platinum crucible to 1300 DEG  C. for one hour.  The temperature was then lowered at about 10 DEG  C. per hour and when the nickel ferrite became supersaturated in the lead monoxide solution small crystals of nickel ferrite were formed of a somewhat irregular structure as shown in Fig. 1.  The crystals so obtained were then employed as seed crystals in a lead monoxide melt maintained at 1300 DEG  C. and containing 30 per cent by weight of nickel ferrite whereby a crystal as shown in Fig. 2 was obtained, where 12 indicates the new growth.  The upper portion of the crystal of Fig. 2 may be employed in a further crystallization whereby a uniform crystal as shown in Fig. 3 may be obtained. Crystallization may suitably be effected in a platinum crucible as shown in Fig. 5 where a lid 16 supports a wire 18 to the end of which a seed crystal 20 is attached.  The lid with the attached crystal is lowered into the saturated solution of nickel ferrite in lead monoxide, 17.  The temperature is then reduced and the resulting nickel ferrite crystal may be withdrawn by removing the lid or alternatively the lead monoxide melt may be poured away before it solidifies or the ferrite crystal may be allowed to cool in the solidified lead monoxide, the latter then being dissolved with a solution of nitric acid.  The outer surface of the crystals tends to be strained and is suitably removed by machining or etching.  Other ferrites which may be similarly obtained are those of cobalt, zinc magnesium and cadmium, manganese and copper, all of which have a spinel structure, and also ferrites of calcium, strontium and barium which have a hexagonal crystal structure. Complex ferrites such as Ni5Zn5Fe2O4 may also be prepared.