baber/WOPTO huggingface dataset:
Patent GB-1514253-A (GB)
Title: Wide range pulse generator
IPC: H03K3/02
Filed: 1975-08-08
Abstract: 1514253 Pulse generator WESTINGHOUSE ELECTRIC CORP 8 Aug 1975 [8 Aug 1974] 33139/75 Heading H3T A free-running rectangular pulse generator comprises a first, adjustable, charging circuit to charge a capacitor 33, a voltage sensing circuit that senses two levels of charge in the capacitor and provides two corresponding levels in an output signal, a rectangular pulse generator that provides a pulse signal in response to the output signal, a second charging circuit to change the charge on the capacitor in the sense opposite to that of the first charging circuit. A non-linear charging circuit is included in the first charger and has a non-linearity between an output current and a controlling voltage. The voltage sensing circuit includes a field effect semiconductor device input stage 34. The frequency control potentiometer 10 provides a voltage, amplified in 11, buffered by emitter follower 23 and applied to the series combination of resistor 26, diode 25 and emitter-base of 28 resulting in a current at the collector of 28 logarithmically related to the voltage. This current serves to charge 33 negatively and the resultant voltage, buffered by FET 24, is applied to a trigger circuit formed by positive feedback around invertors 36, 37. At a certain charge on 33 the trigger changes state and operates one-shot 40 to provide an output pulse whose width is fixed by 41, 42, and which is buffered by invertor 50 and emitter follower 51 and supplied to the output terminal 55. The inverted output pulse at a is applied to gate 56, which must have a low applied to "start" if any oscillation is to take place. The gate output is applied to emitter follower 60 which then has a high voltage and this discharges capacitor 33 upon which the trigger re-sets. Charging re-commences at the end of the preset pulse from one-shot 40. It is stated that the result is a wider range pulse generator, and that it can be varied from 0À5 Hz to 2 MHz.
Patent GB-1317650-A (GB)
Title: Apparatus for checking a stack of data cards
IPC: G06K21/04
Filed: 1970-07-08
Abstract: 1317650 Card reader GRETAG AG 8 July 1970 [8 July 1969] 33148/70 Heading G4M The presence of all N punch cards required, e.g. for programme control is detected by arranging a hole X 1  in an identical position in all cards, arranging N-1 holes in N other positions such that the position where a hole is absent is different for each card and reading the cards using pins. The cards are held in a recess in a reader and spring loaded contact pins are arranged to coincide with the holes. One pin passes through holes X 1  and if all the cards are present the other pins are each stopped by one of the cards. The reader is coupled to a circuit providing an output upon correctly detecting the presence to allow a controlled process to proceed.
Patent GB-929473-A (GB)
Title: An improved weather excluder for vehicle doors and windows and fastener for use therein
Inventor: SECKERSON CLIFFORD ALEXANDER
IPC: B60J10/00
Filed: 1960-09-27
Abstract: 929,473. Spring clips. F. T. PRODUCTS Ltd. Aug. 28, 1961 [Sept. 27, 1960], No. 33193/60. Class 44. A spring clip 10 particularly for use in attaching weather strips round vehicle doors and windows, comprises a strip of material bent to U-shape, the free ends of the limbs of the clip being off-set at 14 and 15, and cut to form claws 18, 19. An arm 16 is cut and bent away from the limb 12 of the clip so as to extend outwardly from the clip in either the same plane as the web 11, or in a plane parallel thereto, and is formed at its free end with either prongs 17, or with a flange, bent out of the plane of the arm, in a direction away from the free ends of the limbs 12, 13. Fig. 5 illustrates the clip 10 securing a two-part weather strip 20, 21 to a metal flange 22.
Patent GB-1058819-A (GB)
Title: Voltage limited power supply arrangements
Inventor: NUTTALL THOMAS CAYTON
IPC: H02P7/285
Filed: 1964-08-14
Abstract: 1,058,819. Two or more machines or sources; control of D.C. motors. RANK-BUSH MURPHY Ltd. Aug. 12, 1965 [Aug. 14, 1964]. No. 33201/64. Headings H2H and H2J. A circuit particularly for starting a D.C. motor M comprises two sources B1, B2 of voltage E. diodes D1. D2 and a connecting resistor R1. When the armature impedance RL is low, the sources, resistor, and impedance are in series so that the armature current is limited to 2E/R1+RL. When RL=R1 the diodes are unblocked and the sources become reconnected in parallel so that the armature current equals E/RL. In a practical embodiment (Fig. 3, not shown), the sources are 3-phase rectifiers preferably fed from phase displaced supplies. A load current relay may be provided to shunt the diodes and disconnect the resistor Rl in the parallel condition.
Patent GB-1029248-A (GB)
Title: Improvements in or relating to magnetic amplifiers
Inventor: MARSHALL RICHARD CARLILE
IPC: H03F9/02
Filed: 1961-09-15
Abstract: 1,029,248. Magnetic amplifiers; transistor oscillator and amplifier circuits. GEORGE KENT Ltd. Sept. 14, 1962 [Sept. 15, 1961], No. 33257/61. Headings H3B and H3T. A D.C. magnetic amplifier has a self-oscillatory circuit which enables a control current in an input winding 16 to produce a current of the same polarity in a load 28. In the embodiment shown two transistors A and B have windings 12, 14, respectively, connected between their bases and emitters, the windings being wound on the same toroidal core as the input winding 16 and output winding 10. With no control current in input winding 16 the two transistors conduct alternately for equal periods and no D.C. current flows through the load 28 which is by-passed to A.C. by a condenser 30. With a control current in winding 16 the mark space ratio of the oscillator waveform varies and a D.C. current flows through the load 28. This D.C. output current acts as negative feedback in the output winding 10 and stabilizes the operation of the device. A choke may be included in the input circuit to prevent oscillator frequencies therein. Alternatively a transformer may be connected across the load with a condenser in series, the secondary being connected in the input circuit to cancel the signals induced in winding 16. It is stated that the circuit may be used to provide a variable mark space oscillator by replacing the load 28 by a resistor and using a further winding on the core to decouple the output from the power supply.
Patent GB-1094663-A (GB)
Title: Device for granulating synthetic thermoplastic material
IPC: B26D1/38
Filed: 1966-07-25
Abstract: 1,094,663. Extrusion granulators. SOCIETA ITALIANA RESINE S.p.A. July 25, 1966 [July 30, 1965], No. 33278/66. Heading B5A. An extrusion granulator for synthetic thermoplastic material comprises a cylindrical chamber C formed by casing 6 and a multi-orificed die plate 1 having a concave face 1a and a cutter device rotated by a drive shaft 5 whose blades 2 are thrust towards and into contact with die plate 1 by centrifugal force. Blades 2 are seated in an arm 3 and preferably a pair of axially spaced arms are provided to support opposite ends of the blades. The end walls of chamber C are provided with plates 4 which prevent detachment of blades 2 from arms 3 during their travel when not in contact with face 1a. The blades may be replaced by others of different weight or blade-restraining springs may be provided to modify the centrifugal action. The extrudate is solidified by water or other cooling fluid which enters via port 7 and carries granulate with it on leaving via port 8.
Patent GB-1520953-A (GB)
Title: Marine vessel equipped for the assembly of apparatus and for lowering same into the water
IPC: B63B27/36
Filed: 1976-08-10
Abstract: 1520953 Marine vessels INDUSTRIEELE HANDELSCOMBINATIE HOLLAND NV 10 Aug 1976 [11 Aug 1975] 33296/76 Heading B7A A vessel has an opening 5 in the hull bottom through which apparatus such as a blow-out preventer or diving equipment or pipeline repair equipment is lowered and a dock 6 located adjacent the opening 5 in which the apparatus may be assembled, a pair of gates 10 being located between the dock 6 and the opening 5. The dock 6 opens on to an intermediate work deck 3.
Patent GB-975205-A (GB)
Title: Motor-pump unit
IPC: H02K5/12
Filed: 1962-08-30
Abstract: 975,205. Cooling dynamo-electric machines. LITTLE GIANT CORPORATION. Aug. 30, 1962 [March 12, 1962], No. 33335/62. Drawings to Specification. Heading H2A. In order to improve the cooling of an electric motor driving a pump unit it is submerged in oil in a housing, the housing itself not being completely full of oil. In operation the oil expands when warmed and compresses the air in the air space rather than leaking through the seal on the motor shaft. Similarly when it cools, there is no tendency for the pumped fluid to be sucked into the housing. The position of the motor in the housing allows any heavy foreign bodies to collect harmlessly at the bottom of the housing while volatile liquid contaminants e.g. from the pumped fluid, can float on top of the oil, again clear of the motor.
Patent GB-1120427-A (GB)
Title: Process for the preparation of 1,6-hexanediols
IPC: C07C31/20
Filed: 1965-08-04
Abstract: 1,6-Hexanediols are prepared by hydrogenolysis in the liquid phase of polyesters containing up to 40 recurrent groups of general formula <FORM:1120427/C2/1> where R represents a hydrogen atom, a C1- 6 alkyl radical or a cycloalkyl radical, in the presence of an ester hydrogenolysis catalyst, particularly copper chromite, under conditions known for hydrogenolysis, particularly under a pressure of at least 150 atm. and at a temperature between 200 DEG  and 300 DEG C.  Examples describe the production of 1,6-hexanediol.
Patent GB-839052-A (GB)
Title: Improvements in or relating to straight-bar knitting machines
Inventor: WHEELDON JOHN THOMAS
IPC: D04B11/06
Filed: 1957-10-26
Abstract: 839,052. Knitting-machines. MORLEY Ltd., I. & R. Oct. 23, 1958 [Oct. 26, 1957], No. 33467/57. Class 74 (2). At the end of fashioning on a straight-bar machine the fashioning points and boxes are returned to their initial position during one false draw of the machine when a pattern chain lug operates a catch 27 which is continuously reciprocated by the draw mechanism so that it engages a rack 22 to move it and through gearing 3 ... 21 the fashioning screws 1, 2. Two bevel gears 16, 32 may be provided in the drive from the rack 22 either of which may be slid into engagement with a central bevel gear 17 depending on the direction in which the screws are to be turned after either narrowing or widening. The catch 27 is provided with two projections one of which engages the rack 22 at one end and the other at the other end also depending on the direction in which the screws are to be turned.
Patent GB-1522808-A (GB)
Title: Graphite intercalation compounds
IPC: H01B1/04
Filed: 1975-08-13
Abstract: 1522808 Intercalated graphite filaments F L VOGEL 13 Aug 1975 [23 Aug 1974] 33657/75 Heading C1A [Also in Division H1] In an intercalated electrically anisotropic non- exfoliated graphite filament the intercalating agents are: (a) hydrogen fluoride, and (b) a boron trihalide, a tetrahalide of a Group IV element, a pentahalide of a Group V element or their mixtures. The intercalated filament may be obtained by treating graphite filament with the intercalating agents or from intercalated graphite powder. Metal composites may be formed, e.g. by electroplating or by twisting metal wires with the intercalated filaments.
Patent GB-303996-A (GB)
Title: Improvements in or relating to arc welding electrodes
IPC: B23K35/04
Filed: 1927-12-13
Abstract: 303,996. Alloy Welding Processes, Ltd., and Jones, E. H. Dec. 13, 1927. Uniting by fusion.-The coating of a metallic arc welding electrode is provided with a film impermeable to moisture so as to prevent hygroscopic action on the ingredients thereof, the film being formed by dipping the coated electrode in a varnish or lacquer having a cellulose base, such as cellulose acetate or nitrocellulose dissolved in amyl acetate &c. and by mixing the lacquer with the ingredients of the coating, prior to application to the core. Such lacquer is that sold under the registered Trade Mark " Hucol." The film may also be obtained by dipping the coated electrode in a solution having a carbonaceous base such as a solution of 1 part of shellac in 3 parts of methylated spirits or a solution of equal parts of gold size and spirit varnish. The spirit varnish may consist of 10 parts sandarac, 3 parts resin, and 70 parts of methylated spirits or of 28 grams gum mastic, 56 grams of gum juniper, 7 grams of turpentine and 570 c.cs. of alcohol. In the case of aluminium or aluminium alloy electrodes the film may also be produced by mixing the ingredients of the coating with a solution having a carbonaceous base. An electrode in which the core is first spirally wound with asbestos as described in Specification 127,315. is then coated with the film by dipping and after the flux coating has been extruded thereon, is again dipped in the solution. The first film is for the purpose of preventing chemical action between the flux and the asbestos and core and the second for excluding atmospheric moisture. The core may be of aluminium or aluminium alloy with a coating as described in Specification 285,674, or may consist of steel with a coating comprising equal parts of fluorspar, felspar, calcium carbonate or hydroxide or of copper, brass or bronze with a coating comprising equal parts of fluorspar, silica, borax glass, borax and sodium carbonate. The coating may contain powdered metals and alloys for alloying with the core material.
Patent GB-792171-A (GB)
Title: Improvements in heat removal systems for nuclear reactors
Inventor: FOLL JEAN LE
IPC: F22G5/00
Filed: 1956-11-05
Abstract: 792,171. Nuclear reactors. COMMISSARIAT A L'ENERGIE ATOMIQUE. Nov. 5, 1956 [Nov. 8, 1955], No. 33728/56. Class 39(4). The cooling channels of a nuclear reactor are divided into a plurality of groups such that the neutron flux of all the channels of a group is within a given range, and separate means are provided for feeding coolant to each group so that the temperature and pressure at the inlet may be adjusted independently for each group to make it possible to obtain the best average thermodynamic efficiency for each group. Fig. 2 shows a plan view of a reactor wherein the cooling channels are divided into three groups at the inlet end by concentric metal chambers 9, 10, 11. Three blowers 18, 19, 20 supply coolant e.g., carbon dioxide, to the respective inlet chambers at 50‹C. for chamber 9, 150‹C. for chamber 10 and 200‹C. for chamber 11 at the same pressure, e.g., about 200 p.s.i. After passing through the reactor core 8 the coolant in each group is divided into two concentric sub-groups ; the coolant is in the outermost sub-group drives a jet pump 24, 25 or 26. which assists in extracting coolant from the innermost sub-group. After passing through the jet pumps, the coolant from all the channels is re-united in a conduit 31 and passed through heat exchangers 32, 33, 34 which are arranged so that their outlet temperatures correspond to the required inlet temperatures for the three groups.
Patent GB-731236-A (GB)
Title: Improvements in or relating to capacitors comprising a ceramic di-electric
IPC: H01G4/28
Filed: 1953-12-04
Abstract: 731,236. Electric capacitors. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Dec. 4, 1953 [Dec. 9, 1952], No. 33784/53. Class 37. An electric capacitor (Fig. 2) is produced by metallizing a ceramic tube 14 on the inside 21 and outside 20, adding a connector to the exterior surface 20 at one end by making one or two turns of a wire 15 round the end and soldering, and adding a connector to the interior surface 21 at the same end by inserting a wire 16 through the tube 14 and soldering at the same end. The tube may be cut from a long length of previously metallized tubing, whereby the end faces 19 are free from metallizing, so that the two wires 15, 16 may be soldered in one operation, using a small quantity of solder to prevent short-circuit by a bridge of solder. A jig for locating the tube 14 and the wires 15, 16 for the soldering operation is also described.
Patent GB-324454-A (GB)
Title: Improvements in machines for cleansing barrels and like receptacles
IPC: B08B9/08
Filed: 1928-11-17
Abstract: 324,454. Sherwell, T. Y., and Mother & Platt, Ltd. Nov. 17, 1928. Cleansing casks.-Relates to machines for washing barrels &c. of the type in which the nozzle is rotated by a water turbine through reduction gearing. According to the invention the spraying nozzle a has an independent water supply through a branch h, controlled by a valve j which is opened by a manually operated lever o and closed by a cam p. The cam p is geared to the nozzle a. The nozzle a is rotated from a water-turbine c through gearing d - - g. The wheel q carrying the cam p has interrupted teeth which are engaged by a single toothed wheel r, so that the cam p is turned with an intermittent motion through one complete turn and closes the valve j after any desired number of turns of the nozzle a. The supply of water to the turbine c is controlled by a separate valve. Exhaust water is led from the turbine through a branch u to a high level water tank for re-use. The controlling mechanism acts simultaneously for both supply valves.
Patent GB-1058157-A (GB)
Title: Reactive colorants
IPC: C09B62/78
Filed: 1964-08-19
Abstract: The invention comprises reactive dyes of the formula R-NH-SO2-R1 wherein R is selected from <FORM:1058157/C4-C5/1> <FORM:1058157/C4-C5/2> <FORM:1058157/C4-C5/3> AND <FORM:1058157/C4-C5/4> and R1 is selected from <FORM:1058157/C4-C5/5> <FORM:1058157/C4-C5/6> <FORM:1058157/C4-C5/7> <FORM:1058157/C4-C5/8> <FORM:1058157/C4-C5/9> AND <FORM:1058157/C4-C5/100> the -SO3Na group taking any vacant position on R, which may be prepared by acylating the appropriate amino-dyestuff with the appropriate nitrofluorobenzene sulphochloride.  The dyes may be used in conjunction with an acid-binding agent to dye or print textile materials of cellulose or synthetic polyamide.  Examples are given.ALSO:4-Fluoro-3-nitrobenzene sulphonyl chloride is prepared by heating 1.1 mols 2-fluoro-1-nitrobenzene and 1 mol of chlorosulphonic acid to 130 DEG  C., stirring at 130-5 DEG  C. for 2 hours, cooling and adding to a water and ice mixture dropwise.
Patent GB-321336-A (GB)
Title: Improvements in the manufacture and production of finely divided metals
IPC: B22F9/28
Filed: 1928-11-19
Abstract: 321,336. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Nov. 19, 1928. Extracting. - Compounds, for example ironchloride, which are reducible by hydrogen, carbon monoxide, powdered carbon, and the like, but are not dissociable by heat alone, are reduced by introducing them along with reducing-agents, and with or without inert or reducing gases, into the hot free space of an externally or internally heated chamber. Acids formed, such as hydrochloric acid, may be used for making from crude materials the compounds to be reduced.
Patent GB-993896-A (GB)
Title: Method and apparatus for detoxifying exhaust gases
IPC: F01N3/26
Filed: 1962-09-04
Abstract: 993,896. Purifying exhaust gases. W. EBERSPACHER, and H. EBERSPACHER, [trading as J. EBERSPACHER]. Sept. 4, 1962 [Oct. 5, 1961], No. 33899/62. Heading FIB. [Also in Division F4] Exhaust gases are purified by passing them with added air through a pipe or chamber 16 maintained incandescent by gases from a burner 5b, the heated chamber 16 causing after-burning of the exhaust gases. As shown the exhaust treating device forms part of an air heater 1 used for heating a motor vehicle. An electric motor 2 drives a fan 3 which forces the heating air through an annular space 8 in which it is heated by the chamber 5c. A second fan 4 supplies combustion air to burner chamber 5b in which the air, mixed with fuel sprayed from a nozzle 10 and atomized by a rotating toothed wheel 4b, is burnt, the burner flame passing into the chamber 5c to heat the chamber 16 to incandescence. The exhaust gases pass through an injector 13, in which they induce air, and after ignition by the incandescent wall of chamber 16, the purified gases escape through pipe 18 which may lead to a catalytic purifier. The gases enter chamber 16 tangentially and solid impurities may be removed through outlet 17. The chamber 16 may be replaced by a coiled pipe and the injector 13 may be situated in the annular space 8.
Patent GB-992585-A (GB)
Title: Improvements in or relating to open-fibred collagenous masses and methods of making same
IPC: D04H1/58
Filed: 1961-09-22
Abstract: An open-fibred coherent collagenous material comprises collagen fibres bound together by a fibrous derivative of gelatin. In a method of making such a material a fibrous collagen derivative resulting from the action of a polyfunctional linking agent on gelatin is caused to precipitate amongst a mass of collagen fibres whereby to bond the fibres together in an open-fibred structure.  The collagen derivative may be obtained by hydrolysis of hides, skins or bones, glue &c. as in normal gelatin making processes and the gelatin molecules are converted into fibrous insoluble material through the action of poly-functional linking agents e.g. a tanning agent such as a chrome complex, other inorganic salts such as those of aluminium, ferric iron, titanium and zirconium and organic cross linking agents such as aldehydes and certain hydroxyl-containing compounds.  The fibres are prepared from skins &c. by lightly tanning the skin and placing pieces in water in a beater where it is beaten into individual fibres of small clumps of fibres and finally dewatering. Combination of existing collagen fibres with the gelatin is preferably effected by preparing an aqueous solution of the gelatin and bringing the fibres and solution together under such conditions as to ensure uniform distribution of the gelatin on the existing fibres.  This may be done in a worm type mixer and the mixture is subsequently spread into a sheet by a known procedure and allowed to set resulting in a sheet of leather-like material.  Specifications 927,282, 957,783, 960,830 and 979,310 are referred to.
Patent GB-873828-A (GB)
Title: Improvements in or relating to circuit arrangements for generating cyclically varying currents in inductive loads
Inventor: BALDWIN JOHN LEWIS EDWIN
IPC: H04N3/223
Filed: 1957-10-31
Abstract: 873,828. Automatic voltage-control systems. BUSH & RANK CINTEL Ltd. Oct. 31, 1958 [Oct. 31, 1957], No. 33999/57. Class 38 (4). [Also in Group XL (c)] A sawtooth current generator of the resonant flyback type comprises means responsive to variations in amplitude of the peak potential developed across the output coils during the flyback and arranged to vary the voltage applied to the output transformer of the circuit so as to eliminate variations in the amplitude of sawtooth wave generated. The Figure shows a circuit for generating sawtooth current in deflection coils 1 and comprising a transformer 7 connected to a driver valve 5 and a damper valve 11, feedback being provided from the anode of the damper valve through capacitor 15 to cut off the driver valve while the damper valve is conducting. The pulse developed across the deflection coils during the flyback is applied to the grid of a valve 21 which is biased from a potentiometer 26 so that current flows when the pulse exceeds the bias value. The resulting output in the anode of valve 21 is smoothed and applied to the grid of a valve 9 so as to control the voltage applied to the transformer from the H.T. source 8 whereby the amplitude of the flyback pulse and therefore the amplitude of the sawtooth current is maintained constant. A negative-going sawtooth is produced by an integrating network 17, 18 and fed back to the grid of the damper valve so as to maintain the sawtooth current more nearly linear. Valve 2b could be preceded by a peak rectifier and further amplification could be provided between the output of valve 21 and the input of valve 9.