baber/WOPTO huggingface dataset:
Patent GB-718283-A (GB)
Title: Improvements in or relating to the production of metal containing synthetic resins
IPC: C08G79/00
Filed: 1951-09-18
Abstract: Synthetic resins are produced by heating at elevated temperatures a halide or an alcoholate (from a monohydric aliphatic alcohol) of a metal with a valency of 3 or more with a compound showing keto-enol tautomerism and which is a b -ketocarboxylic acid, a b -diketone or a malonic acid ester at least one mol. of the latter being used/atomic weight of metal. Metal compounds mentioned are the butylates or propylates of aluminium, iron, titanium, and aluminium chloride. Tautomers mentioned are acetoacetic ester, diethyl malonate, and formylacetophenone.  Reaction is preferably effected in vacuo. In Example 1 aluminium butylate is refluxed with acetoacetic ester, volatile components removed by heating to 130-150 DEG C. in vacuo or higher without a vacuum, and an air-drying oil is left as product, (2) aluminium butylate is reacted with diethyl malonate; (3) ferric butylate is reacted with acetoacetic ester; (4) aluminium chloride is reacted with acetoacetic ester in toluene at temperatures which reach 180 DEG C.; (5) titanium butylate is refluxed with acetoacetic ester. Specifications 289,493, [Class 2 (iii)], and 630,319, and U.S.A. Specification 2,169,577 are referred to.ALSO:Synthetic resins are produced by heating at elevated temperatures a halide or an alcoholate (from a monohydric aliphatic alcohol) of a metal with a valency of 3 or more with a compound showing keto-enol tautomerism and which is a b -ketocarboxylic acid, a b -diketone or a malonic acid ester, at least one mol. of the latter being used per atomic weight of metal.  Metal compounds mentioned are the butylates or propylates of aluminium, iron, titanium and aluminium chloride. Tautomers mentioned are acetoacetic ester, diethyl malonate and formylacetophenone.  Reaction is preferably effected in vacuo. In examples (1) aluminium butylate is refluxed with acetoacetic ester, volatile components removed by heating to 130-150 DEG  C. in vacuo or higher without a vacuum, and an airdrying oil is left as product; (2) aluminium butylate is reacted with diethyl malonate; (3) ferric butylate is reacted with acetoacetic ester; (4) aluminium chloride is reacted with acetoacetic ester in toluene at temperatures which reach 180 DEG  C.; (5) titanium butylate is refluxed with acetoacetic ester.  Specifications 289,483, [Class 2 (iii)], 630,319, [Group IV (a)], and U.S.A. Specification 2,169,577 are referred to.
Patent GB-1040054-A (GB)
Title: Fifth wheel suspension
Inventor: CARRIER LOUIS VERNON
IPC: B62D53/08
Filed: 1963-05-31
Abstract: 1,040,054. Fifth-wheel couplings. HOLLAND HITCH CO. May 31, 1963, No. 21990/63. Heading B7T. A fifth-wheel coupling which may pivot fore and aft and tilt sideways comprises, a stationary frame 2 provided with arcuate bearing plates 10 extending between vertical plates 6, side braces 5 and flanges 4 whereby the frame 2 may be fixed to a towing vehicle, a fifth wheel plate 100 mounting pins 31 and rubber bushes 32, Figs. 4, 5, 6, about which it may pivot in a fore and aft direction, and cradles 11 comprising bearing plates 12 complementary to and engaging the plates 10, the plates 12 being secured to plates 14, 15 welded to bush bearing tubes 16. Welded to each of the plates 12, 14 and 15 are bearing risers 17 which fit inside hold down bars 13 which may be removable, and at the inner end of each of the cradles the ends of the risers 17 are joined by a plate 18 through which passes a tie rod 20. Rubber buffers 22 fixed to the rod 20 may in an extreme tilted position each engage one of a pair of stop plates 24 fixed to the frame 2.
Patent GB-1190743-A (GB)
Title: Improvements in or relating to Telephone Systems
Inventor: MORCOMBE PETER HALEY
IPC: H04M7/16
Filed: 1966-05-18
Abstract: 1,190,743. Carrier systems; party lines. GENERAL ELECTRIC & ENGLISH ELECTRIC COMPANIES Ltd. 18 Aug., 1967 [18 May, 1966], No. 22044/66. Headings H4K and H4R. In a system in which several subscribers' units, four as shown, are connected to corresponding exchange lines by a common 2-wire line 11, the channels are separated by frequency-division multiplex and one channel 1 operates on audio frequencies but employs a frequency outside the audio-band, e.g. 12 kc/s., for indicating an off-hook condition and for dialling. This frequency is supplied by an oscillator 63 and controls relay RX at the exchange. The receiver and (moving iron) microphone circuits 56, 58 are separated by a hybrid 53 and a microphone amplifier 57 serves also to amplify 2À9 kc/s. calling signals from the exchange. As regards the subscribers using carrier transmission different carriers for the two directions are provided by oscillators 31, 43, the local oscillator 31 giving a calling signal to operate relay RX at the exchange, where the incoming and outgoing paths are separated by a hybrid 37. For calling a subscriber from the exchange relay RY applies a 2À9 kc/s. signal which is sent directly in the case of subscriber 1 and modulates the appropriate carrier in the case of the other subscribers. Power for the audio subscriber's equipment is derived from the common line 11 by hybrid 53's balance resistor 55, full-wave rectifier 61 and Zener diode 54, D.C. power being supplied to the line via current regulator 47 in the audio subscriber's line circuit.
Patent GB-657296-A (GB)
Title: Improvements in and relating to thermionic valve apparatus
IPC: H02M1/10
Filed: 1947-08-11
Abstract: 657,296. Rectifying. BUSH RADIO, Ltd., and NEAVE, P. B. Aug. 11, 1947, No. 22269. [Class 38 (ii)] [Also in Group XL (c)] Thermionic valve apparatus adapted to operate from A.C. or D.C. mains supply or from a low voltage D.C. supply has the cathode heaters of the valves connected in series and comprises, for operation from a low voltage D.C. supply, a current interrupter and a voltage transformer, to a winding of which transformer interrupted current is supplied, wherein the transformer includes a winding for supplying cathode heater current for at least some of the valves during operation from the low voltage D.C. supply. Thermionic valve apparatus of the conventional type such as radio receivers intended for use with either an A.C. or a D.C. mains supply has the heaters of the. valves including a rectifying valve V6 connected in series. To convert the apparatus for use with a low voltage D.C. supply, e.g. a six-volt accumulator, the valve V6 is removed from its holder VH and a plug P of a power unit inserted therein, the low voltage supply preferably being connected to the terminals marked " supply " as was the mains supply. Power is then supplied to a vibrator Vib of the selfrectifying type which supplies interrupted current to the primary winding Wp of a transformer T. A secondary winding Ws1 thus supplies smoothed high-tension current to the valve anodes via the rectifying contacts of the vibrator, the smoothing elements Ch, C and the terminals of the plug P and valve-holder VH. A further secondary winding Ws2 is provided to supply the serially connected valve heaters which winding also has the effect of stabilizing the high-tension supply while the cathodes are warming up. One or more of the valve heaters, e.g. that of a detector or a lowfrequency amplifying valve and/or the pilot lamps PL may be connected directly to the low voltage supply. The filter elements Ch1, C1 are provided to reduce interference by the vibrator in the valve apparatus. Thus, valves having low wattage heaters may be used with a low voltage supply and since the impedance of the heater circuit is increased by connecting the heaters in series the design of the filter circuit is facilitated.
Patent GB-1532925-A (GB)
Title: Membranes with variably adjustable pore systems
IPC: B01D71/02
Filed: 1977-05-26
Abstract: 1532925 Membranes, moulding ferrous articles BERGWERKSVERBAND GmbH 26 May 1977 [2 June 1976] 22341/77 Headings B5A and B5B Membranes in the form of films, sheets or tubes having a variably adjustable pore system are formed by moulding finely divided coal or coke with up to 20% by weight of material and/or synthetic rubber and up to 20% by weight of thermoplastics then heating the moulded product at 400-1400 C. in an inert atmosphere at rates of 0À1-10 C./min.
Patent GB-759107-A (GB)
Title: Improvements in and relating to sewing machines
IPC: D05B51/00
Filed: 1954-07-30
Abstract: 759,107. Sewing machines. GRAEVE, S. S. DE, and BARTHOLAMEUS, M. P., [trading as DE GRAEVE-BARTHOLOMEUS [Firm of]]. July 30, 1954 [July 31, 1953], No. 22356/54. Class 112. In means for stopping the driving motor of a sewing machine upon failure of the shuttle thread, a feeler 5 disposed adjacent the needle contacts the free end of a spring blade 29 which is displaceable in a horizontal plane, and an extension 23<1> of an arm 23 carrying an electric contact 25 is supported on the upper edge of the spring blade, whereby contact 25 is held apart from a second contact 18, the contacts being connected to the respective terminals of a circuit breaker, and the arrangement is such that, on failure of the shuttle thread, the feeler is moved by the needle thread D to displace the spring blade, when the latter ceases to support the arm 23 which then drops to close the electrical circuit to the circuit breaker, the contacts remaining closed after the feeler returns to its normal position until the extension 23<1> is replaced on the spring blade. The feeler, which is made from wire, is mounted in a block 1 secured to the presser bar A and is adjustable therein by means of an extension 6. The spring blade is carried by a block 26 adjustably mounted on a block 10 which is, in turn, adjustably mounted on a plate 8 secured to the base of the machine. Contact 18 is mounted on an insulator 15 which is secured to a member 13 adjustably mounted on the block 10. Arm 23 is carried by a rod 21 which is pivotally mounted in the block 10, and has a second extension 23<11> which serves for manually raising the arm.
Patent GB-314255-A (GB)
Title: Improvements in or relating to vehicles for collecting and transporting refuse
IPC: B65F3/16
Filed: 1928-08-03
Abstract: 314,255. Karrier Motors, Ltd., Clayton, R. F., and Jemmison, J. W. Aug. 3,1928. Scavengers' carts.-A refuse collecting and transporting vehicle comprises a motor driven chassis a, a closed container b, a casing d supported on the chassis and having a delivery duct d' leading into the upper part of the container, a rotor within the casing formed as an open ended impeller arranged to form with the casing a number of radial pockets h into which refuse is introduced through an opening i in the side of the casing so that the refuse will be carried round by the impeller and discharged into the container through the duct d'. The impeller as shown is arranged with radial vanes or brushes e mounted on discs f, g and a dust bin o is adapted to discharge its contents in the shoot i. A basket screen m may be positioned as shown to arrest the larger parts of the refuse which screen may be taken out when full and replaced. If desired two or more rotors may also be superposed the lower one discharging into the upper one and the final one into the container.
Patent GB-625633-A (GB)
Title: Improvements in or relating to the feeding of tobacco to cigarettemaking machines orother machines for processing the tobacco
IPC: A24C5/39
Filed: 1947-08-13
Abstract: 625,633. Cigarette - making machines. SKODA WORKS, PLZEN. Aug. 13, 1947, No. 22495. Convention date, Aug. 14, 1946. [Class 130] [Also in Group XXX] Tobacco is fed from a hopper chamber 1 by feeding and carding arms 3, 6 which extend between the teeth of resilient combs 2, 5. Behind the teeth are non- resilient plates 8, 9 having fixed teeth which limit the amount that the combs 2, 5 can be bent back by the passage of tobacco or foreign bodies. A rotating magnet 12 removes metal particles which are stripped by a wall 14.
Patent GB-1011351-A (GB)
Title: A dichloroalkoxyphenylbiguanide its salts and mycobacteriostatic compositions
Inventor: BROWN JOSEPH PATRICK
IPC: C07C279/26
Filed: 1963-06-06
Abstract: The invention comprises 3,5-dichloro-4-n-amyloxyphenylbiguanide and its salts with an inorganic acid, such as hydrochloric or sulphuric, or with an organic acid, such as acetic, oxalic or picric, or quaternary ammonium salts.  A salt of the biguanide may be made by the reaction in acid medium of 3,5-dichloro-4-n-amyloxy-aniline with dicyandiamide.  The biguanide is obtained by treatment of the salt with a base, such as sodium or potassium hydroxide.  In an example, 3,5-dichloro-4-n-amyloxy-aniline is made by reacting 2,6-dichloro-4-acetyl-amino-phenol with 1-bromopentane to form 3,5-dichloro-4-n-amyloxy-acetanilide which was boiled with aqueous ethanolic sodium hydroxide solution to remove the acetyl group; the intermediate was then reacted with biguanide in hydrochloric acid and ethanol to form the 3,5 - dichloro - 4 - n - amyloxyphenylbiguanide hydrochloride.ALSO:A mycobacteriostatic composition contains 3, 5-dichloro-4-n-amuloxyphenylbiguanide or a salt there of in admixture with an inert dilument.  The composition may be a solution, suspension, emulsion or solid.  The salts include the acid addition salts of the free biguanide with an inorganic acid such as hydrochloric or sulphuric, or an organic acid, such as acetic, oxalic or picric acid.  Quaternary ammonium salts such as the quaternary halides formed by treating the free base with an alkyl halide, may also be used.  The solvent for the biguanide may be an alcohol, e.g. ethanol, or for the salt the solvent may be organic or aqueous.  An emulsion may be made by dissolving the biguanide or salt in an organic solvent, such as a hydrocarbon halohydrocarbon, or an animal, vegetable or mineral oil, and emulsifying with an aqueous medium.  A surface active agent may be added.  Talc may be used as a solid diluent.
Patent GB-806144-A (GB)
Title: Method and apparatus for activating adhesive coated paper
Inventor: OUGHTON JOHN HENRY
IPC: B65C9/24
Filed: 1955-08-05
Abstract: <PICT:0806144/III/1> Heat-sensitive adhesive coated paper is activated by exposing its uncoated surface to steam for a period sufficient to raise the temperature of the coating on the opposite surface to the degree necessary to render it tacky.  As shown, apparatus for carrying out the process consists of a water container 1 fitted with an immersion heater 2.  The paper is supported on a foraminous (e.g. wire mesh) carrier 3 fitted with handles 4 which may be passed to and fro over the surface of the boiling water.
Patent GB-342246-A (GB)
Title: Improvements in and relating to rheostats
IPC: H01C10/12
Filed: 1930-07-28
Abstract: 342,246. Compression resistances. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Woodcock, V. E. ; 713, The Argonne, Washington, U.S.A.) July 28, 1930, No. 22691. Convention date, July 27, 1929. [Class 37.] In a compressible pile resistance, in order to vary the change of resistance in a predetermined manner for uniform advance of the actuators 5, 6, Fig. 1, elastic bags 11 which may be made of rubber are inflated, enclosed and placed (enclosed in inelastic containers 9) between the resistance piles 1 and the actuating means 5, 6. The inelastic containers are formed by a metal plate 3, which transmits the pressure to the compressible carbon piles and also connects them together, and rigid cylindrical or other shaped members 9 attached to said plate 3. Springs 2 press the plate 3 away from the piles 1. The rate at which the resistance of the piles is varied depends upon the resistance characteristic of the piles with respect to applied pressure, the nature and initial pressure of the gas in the inflated bags 11, the shape of the inelastic containers 9 and the rate of advance of the actuator 5. In a modification, Fig. 3, as applied to a single pile rheostat the gas bag is held within a concave actuator 10 the edges of which contact with the plate 3 when the inherent resistance characteristic of the pile has been passed, thrust being thereafter transmitted positively.
Patent GB-294619-A (GB)
Title: Steam generators
IPC: F26B21/06
Filed: 1927-08-29
Abstract: 294,619. La Mont Corporation, (Assignees of La Mont, W. D.). July 28, 1927, [Convention date]. Instantaneous generators.-Steam is generated in a heated horizontal tube or in a heated inclined tube having its feed inlet end below its steam discharge end by supplying the tube continuously with water at a greater rate than it is evaporated but at a lower rate than is sufficient to fill the tube. A generator for a motor vehicle consists of a nest of tubes 10, Fig. 1, surrounded by a hollow casing 1 and heated by the gases from a combustion chamber 6. The hot gases flow along the tubes and escape through a screen 5 at the end of the casing. Each tube is supplied with water from a tank 14 through a small orifice in a D- shaped tube in the distributing headers 12, to which water is returned from the steam drum 20 by a pump 19. The steam drum and feed tank are connected by a pipe 31 having a restriction 58. A pump 29 discharges water from the engine condenser 28 to the distributing headers. In a modification (Fig. 9, not shown) the tubes are surrounded by a solid heat insulating casing and the combustion chamber is arranged below one end of the tubes, the feed tank being placed in the space occupied by the combustion chamber of the generator shown in Fig. 1. The generating tubes may be arranged across the vehicle. The lever 60, Fig. 13, operating the fuel supply valve 64 carries a switch arm completing circuits through the motors driving the circulation pump 19 and the air fan 8, and through the ignition device 76. Specifications 171,735, 263,778 and 264,155 are referred to.
Patent GB-207247-A (GB)
Title: Improvements in and relating to the extraction of iron and of titanium compounds from titanium ores
IPC: C01G23/00
Filed: 1922-08-21
Abstract: In a process for reducing titaniferous iron ores of the kind in which the ores are reduced to obtain metallic iron practically free from titanium and a slag practically free from iron, the reducing agent used is a silicide such as calcium silicide, titanium silicide or ferro-silicon of high silicon content; in addition ferro-titanium may be used.  The quantities of the ingredients in the charge are in molecular proportions.  In an example, 3040 parts of ilmenite, 75 parts of ferro-titanium, 1120 parts of lime and 600 parts of quartz are melted in an electric furnace provided with a suitable lining and, when molten, 310 parts of ferro-silicon are added.  The slag obtained is of the "sphene" type and, for use in manufacturing titanium paints, is purified by the removal of any iron present and also other impurities, e.g. manganese.  To obtain slags containing barium silicate and titanate, barium silicide or a mixture of barium oxide and ferro-silicon is used.  By using other corresponding silicides, slags containing silicates and titanates of manganese, magnesium, aluminium, zirconium and thorium may be obtained.
Patent GB-886073-A (GB)
Title: An intermediate equalizer, settable at sea, for submarine cables with submarine repeaters, and means for setting the intermediate equalizer
IPC: H04B3/36
Filed: 1960-06-29
Abstract: 886,073. Attenuation equalizers for submarine cables. FELTEN & GUILLEAUME CARLSWERKE A.G. June 29, 1960, [Oct. 31, 1959], No. 22804/60. Class 40 (4). A sealed housing contains a plurality of equalizer circuits which may be moved so that any one is connected in the transmission path, and a selected one may be finally soldered in place, all under control from outside the housing by means of control currents of various frequencies. As shown, the equalizer circuits are mounted in casings EG on a drum Tr which is secured, together with a notched disc N, on a rotatable shaft A which is connected through reduction gearing to the shaft of an electric motor M. Filters LW1, LW2 separate the transmission frequency band ##, the control frequencies #1, #M (modulated on #1 and separated by a demodulator DM), and #2, and the direct current IS for supplying the submarine repeaters. Momentary operation of solenoid R by frequency #M withdraws a latch No from disc N and closes the circuit of motor M which is actuated by frequency /1 to rotate drum Tr to its next latched position. In each such position contacts K of one of the equalizer circuits engage fixed terminals Kl of the transmission path. Each of the contacts K and terminals Kl carries a layer of soldering material, so that a selected equalizer circuit may be soldered in position by the application of control current of frequency #2 to heating elements HE secured on the undersides of terminals Kl.
Patent GB-891828-A (GB)
Title: Process for the production of sodium hydrosulphide
IPC: C01B17/32
Filed: 1960-06-29
Abstract: Sodium hydrosulphide is prepared by reacting a dispersion of sodium, of particle size not more than 30m , in an organic liquid, with hydrogen sulphide, at a temperature of at least 70 DEG C., preferably at least 80 DEG C., and especially at 110 DEG C.  The sodium particles are preferably less than 15m .  In an example, a dispersion of sodium in "Tetralin" (Registered Trade Mark) is placed in a flask fitted with a stirrer and a reflux condenser, and hydrogen sulphide gas was introduced, the reaction being effected at 110 DEG C., and the hydrogen sulphide having been dried over calcium chloride.  The resultant white crystalline sodium hydrosulphide was filtered off, washed with benzene and dried at up to 50 DEG C. at reduced pressure.
Patent GB-504879-A (GB)
Title: Process for the reduction of cupriferous or like non-ferrous material
IPC: C22B15/00
Filed: 1938-08-02
Abstract: 504,879. Extracting copper and other metals. EULENSTEIN, F., KRUS, A., and SACHTLEBEN AKT.-GES. FUR BERGBAU UND CHEMISCHE INDUSTRIE. Aug. 2, 1938, No. 22885. [Class 82 (i)] Materials containing copper or other non- ferrous metal of comparable melting point such as nickel are reduced by heating with solid reducing agents in a horizontal rotary furnace having a length which is a multiple of its diameter, the temperature of the furnace being progressively raised during the whole course of the reduction until the reduced metal and slag are molten. Any zinc present is volatilized as zinc oxide. If sulphur is present it can first be eliminated by roasting.
Patent GB-1432415-A (GB)
Title: Method of refrigeration
IPC: F25B41/04
Filed: 1973-05-15
Abstract: 1432415 Refrigerating SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 15 May 1973 22972/73 Heading F4H A method of refrigerating a load 11 comprises the steps of dividing the gas from the compressor into a main stream 7 and a recycle stream 8; passing the main stream 7 through a cooling heat exchanger 9 to liquefy it, expanding and evaporating the main stream at the load 11, and passing the resultant gas 12 to the compressor; while expanding the recycle stream 8 in an expansion valve 13 and returning the stream to the suction line of the compressor. Portions of the recycle stream 22 and the main stream 19 are branched off, expanded at 23, 20 respectively and intermixed at 30. The gas/liquid mixture is then passed through an atomization nozzle 33 and is injected into the expanded recycle stream. The gas of the recycle stream is expanded in a control valve 13 which is set by a controller which co-operates with a flow meter 17 in the suction line of the compressor, the flow meter measuring the total flow of gas to the compressor. The valves 20, 23 are set by a controller which co-operates with a meter 24 in the suction line, the meter measuring the degree of superheating of the gas in the said line. The refrigerant may be propane gas.