baber/WOPTO huggingface dataset:
Patent GB-711139-A (GB)
Title: Improvements in echo sounding apparatus
IPC: G01S15/10
Filed: 1951-01-23
Abstract: 711,139. Pulse-radar. SOC. GENERALE D'ELECTRICITE ET DE RADIO. Jan. 23, 1951 [Jan. 25, 1950], No. 1702/51. Class 40 (7). [Also in Groups XXXVI and XXXVIII] In a pulse-echo ranging system the timing of the system is controlled by a master oscillator feeding a chain of 2:1 frequency dividers with square-wave outputs. The invention is described as applied to a subaqueous sounding system having a cathode-ray tube for displaying the location of shoals of fish but it may be applied to systems utilizing light or radio waves and an electromechanical indicator or recorder may be employed. As shown in Fig. 1 the 294 c/s sinusoidal output from the master oscillator 22 is squared at 23 and applied to a chain of frequency halvers 24a-24b, the outputs from selected frequency dividers being applied (a) via a pulse-recurence frequency selector 27 to trigger a pulse generator 28 whose output triggers the transmitter 29, (b) via a time-base selector 26 to trigger the vertical time-base of the cathode-ray tube 33, (c) via a marker selector 25 to the X plates of the tube and (d) to a selector 30 having two square-wave outputs, one, 30a, being applied to displace the time-base horizontally and the other, 30b, being applied as a blanking control to the grid of the cathode-ray tube; the latter output may also be applied to gate the receiver 31 whose output is applied to the grid and to the X plates of the cathode-ray tube. By these means the recurrence frequencies of the transmitted pulses, the time-base, the marker pulses and the blanking and displacement waves may be selected independently and the form of the display may be varied to suit particular requirements, e.g. if the recurrence frequency Fd of the trace displacement wave is the same as that of the time-base, Fs, a stepped trace results, Fig. 3 (not shown), but if Fd = Fs/2 a double trace results, Fig. 4 (not shown), and if the displacement wave Fig. 5c is formed by adding two square waves a and b having recurrence frequencies Fs/2 and Fs/4 respectively four parallel traces d result. In Figs. 4 and 5 the transmitter recurrence frequencies Ft would be Fs/2 and Fs/4 respectively so that the total range is spread over the multiple traces. Alternatively a selected fraction 1/2", of the total range may be displayed ; e.g. if the blanking waveform, Fig. 6c, is formed by adding two square waves a and b having recurrence frequencies Ft and 2 Ft respectively, three quarters of the trace will be blanked out and if Fs = 4 Ft, the remaining quarter will be expanded to full amplitude. When an electromechanical indicator or recorder is employed, it is driven by a motor synchronized by a selected output from the frequency dividers.
Patent GB-289147-A (GB)
Title: Improvements in and relating to dynamo electric machines
IPC: H02K27/18
Filed: 1927-01-20
Abstract: 289,147. British Thomson-Houston Co., Ltd., and Dreghorn, H. Jan. 20, 1927. Alternating - current commutator machines. - In a compensated induction motor, in order to obtain power factor correction for both directions of running without the necessity for moving the commutator brushes, a switch is connected between the brushes and the secondary winding. In the form shown, the brushes 6, 7, 8 of the commutator 9 of the regulating winding (which, together with the primary winding on the rotor is not shown in the Figure) are connected to the two sides A, B of a two-way switch. The blades of the switch are connected to the secondary windings 3, 4, 5 of the motor which are so designed that the requisite power factor correction is given when the brushes are displaced by 60‹, i.e. when midway between the coils 3, 4, 5. When the switch is closed at A and B respectively the proper compensations for counter-clockwise and clockwise rotations are given without the need for moving the brushes. In the general case, the angle of displacement is 360¸2N where N is the number of phases of the machine. The switch may be combined with the switch which reverses the primary leads.
Patent GB-1085883-A (GB)
Title: Substituted pyridazones
IPC: C07D237/22
Filed: 1965-01-15
Abstract: 1 - Phenyl - 4 - amino - 5 - methoxy - pyridazone - (6) and 1 - cyclohexyl - 4 - amino - 5 - methoxy-pyridazone-(6) are prepared by hydrogenating the corresponding 4-nitro compounds or by alkylating the corresponding 5-hydroxyl compounds.  1 - Phenyl - 4 - diacetylamino - 5 - methoxy - pyridazone-(6) is prepared by acylating the corresponding 4-amino compound.  1 - Phenyl - 4 - isopropylamino - 5 - methoxy-pyridazone-(6) is prepared by N-alkylating the corresponding 4-amino compound.  1 - Phenyl - 4 - a  hydroxy - b ,b ,b  - trichloroethylamino - 5 - methoxy - pyridazone - (6) is prepared by reacting the corresponding 4-amino compound with chloral. 1 - Phenyl - 4 - phenylureido - 5 - methoxy-pyridazone-(6) is prepared by reacting the corresponding 4-amino compound with phenyl isocyanate.  1 - Phenyl - 4 - amino - 5 - methoxy - pyridazone - (6) - dimethylformamidine is prepared by reacting the corresponding 4-amino compound with dimethyl formamide.ALSO:Unwanted vegetation is controlled by using pyridazone compounds of the formula:- <FORM:1085883/A5-A6/1> wherein R1 represents a phenyl or cyclohexyl radical, or salts, amides, imides, amidines, azomethines, N-alkyl derivatives, N-ureido derivatives or Schiff's base derivatives thereof, e.g. 1-phenyl-4-amino-5-methoxypyridazone-(6), 1-cyclohexyl-4-amino-5-methoxy-pyridazone - (6), 1 - phenyl -4- diacetylamino -5- methoxy pyridazone - (6), 1-phenyl-4-isopropylamino-5-methoxy-pyridazone-(6), 1-phenyl-4-phenylureido-5-methoxy-pyridazone - (6), 1-phenyl-4-amino-5-methoxypyridazone - (6) -dimethylformamidine and 1-phenyl-4-a -hydroxy-b ,b , b -trichloroethylamino-5-methoxy-pyridazone-(6).  The above compounds may be applied alone or as a suitably formulated composition.
Patent GB-490125-A (GB)
Title: Improvements in or relating to apparatus for stretching flanged or other profile sections produced in extrusion presses
IPC: B21D3/12
Filed: 1938-01-19
Abstract: 490,125. Stretching &c. extruded bars. SCHLOEMANN AKT.-GES. Jan. 19, 1938, No. 1821. Convention date, Sept. 10, 1937. [Classes 83 (ii) and 83 (iv)] Twists occurring in extruded flanged or other profile bars are removed by mounting the ends in correspondingly shaped chucks forming part of apparatus customarily used for stretching such sections and rotating one of the chucks relatively to the other in a direction opposed to that of the twist until the necessary permanent set is produced. Carriages 2, 3 are movably mounted on a bed 1 and carry chucks 5, Fig. 3, engaging the ends of the bar. The chuck on the carriage 2 is rotated by a motor-driven worm 8 to untwist the bar and the carriage 3 is then moved by a hydraulic ram 4 to apply tension. Both chucks may be rotatable.
Patent GB-984614-A (GB)
Title: Improvements in extrusion die
IPC: B21K5/02
Filed: 1964-01-16
Abstract: 984,614. Extruding; making twist drills. CLEVELAND TWIST DRILL CO. Jan. 16, 1964 [Jan. 21, 1963], No. 1969/64. Headings B3A and B3P. An extrusion die 5, particularly for forming twist drills, has a generally cylindrical bore 5a, with a smoothly contoured entrance 15 and at least one helical land 13 having along one side an axial relief 20. For forming twist drills from heated billets 10 of cast high speed tool steel, the die has two opposite lands 13, 14, Fig. 3 (not shown) whose entrance edges are relieved at 16-19, Fig. 3 (not shown). Die 5 is preferably made of molybdenum-tungsten high speed steel or sintered metal carbides and is mounted in a die holder 4 located in a housing 3 which also receives the billet container 6 whose conical end 9 is engaged by a cap 7. Extrusion pressure is applied by a ram 12 acting through a dummy block 11 of friable material such as compressed carbon, molybdenum disulphide or glass which ensures complete extrusion.
Patent GB-942332-A (GB)
Title: Improvements in and relating to dart boards
Inventor: BATCHELOR NORMAN HAROLD
IPC: F41J3/00
Filed: 1961-01-17
Abstract: 942,332. Dartboards. NODOR CO. Ltd. Jan. 17, 1962 [Jan. 17, 1961], No. 1974/61. Heading A6S. [Also in Division F2] A dartboard comprises a core providing the playing surface, an outer retaining band, a numeral ring and means for attaching the ring to the board comprising two clips, each clip having a tang 1 which engages between the board and retaining band, and a head portion 3 which is of channel or curved section to accommodate the outer wire of the numeral ring.
Patent GB-856647-A (GB)
Title: Control system for electric motors
IPC: H02P7/03
Filed: 1958-01-21
Abstract: 856,647. Control of D.C. motors. ZAVODY V.I. LENINA PLZEN, NARODNI PODNIK. Jan. 21, 1958 [Jan. 21, 1957], No. 2023/58. Class 38 (3). A double-wound servomotor 1 comprises two groups of separate armature and field windings, each with an individual commutator, the motor being reversibly controlled by supplying each group in turn from the separate secondary windings of a transformer 6 through thyratrons 2, 3. Control voltages are applied to a resistor 4 common to the control circuits of both valves, which have their grids connected to opposite terminals of the resistor. During rotation of the motor, the voltages produced in the idle group of windings by transformer and generator action from the active group prevent firing of the associated valve. A brake for the motor is released by means of an electromagnet 5 which opposes the force of a spring. As shown, the winding of the electromagnet is connected in series with the resistor 4 so that the damping- effect of the brake is reduced as the control voltage increases. In another arrangement, the resistor 4 is omitted and its function is undertaken by the winding of the electromagnet.
Patent GB-775745-A (GB)
Title: Improvements in or relating to the manufacture of galvanised steel wire
IPC: C23C2/38
Filed: 1955-01-24
Abstract: The process of tight coat galvanizing disclosed in the parent Specification is applied to steel wire.
Patent GB-412318-A (GB)
Title: Improvements in or relating to gas burners
IPC: F23D14/22
Filed: 1933-01-23
Abstract: 412,318. Gas burners. KORBITZ, A., and LINDENTHAL, F., Gotovlje pri Zalcu, Yugo-Slavia. Jan. 23, 1933, No. 2108. [Class 75 (i).] The gas passage b is surrounded by an annular air passage a having a plurality of outlet openings c, which are all equally inclined towards the longitudinal axis of the gas passage b and directed tangentially to it. The air is supplied at a higher pressure than the gas so that the streams issuing from the outlets c exert a strong suction effect upon the gas issuing from the passage b and complete mixing is obtained in a small space at A.
Patent GB-829032-A (GB)
Title: Improvements in or relating to the protection of electrical distribution systems
IPC: H02H3/00
Filed: 1957-01-21
Abstract: 829,032. Protective cut-out arrangements. WESTINGHOUSE ELECTRIC CORPORATION. Jan. 21, 1957 [Jan. 26, 1956], No. 2114/57. Class 38 (5). A power-directional relay controlling a circuit-breaker 13 positioned between a network 1 and a transformer 9 supplied by a feeder 7, comprises a rotor 19 rotatable between circuit-breaker tripping and closing positions and a stator structure with voltage windings 43a, 45a energized by two-phase voltages from the network side of the circuitbreaker, a voltage winding 47a energized by the remaining phase voltage on the transformer side of the circuitbreaker, current windings 37a, 39a, 41a energized by the phase currents and phasing windings 37b, 39b, 41b energized by the voltages across the circuit-breaker contacts, the current and voltage windings producing a torque which moves the rotor 19 to close contacts 25, 27 to trip the circuit-breaker in the event of reverse power flow from the network to the transformer and the voltage and phasing windings producing a torque effective to close contacts 25, 29 to close the circuit-breaker when the voltage conditions are such as to permit power flow from the feeder to the network. A spiral spring 29 assists the current and voltage windings to produce circuit-breaker tripping when the reverse power flow is only that due to transformer magnetizing currents taken from the network when the feeder is de-energized. The effect of voltage variation on the torque resulting from reverse magnetising currents is minimised by shading rings 69, 71, 73. To improve the operating characteristics of the relay impedances 75, 77, 79, 81, 83, 85 are connected in series with the phasing windings, short-circuiting contacts 87, 89, 91 for the impedances 77, 81, 85 being provided on the circuit-breaker. A leaf-spring 99 carried by the rotor 19 cooperates with a fixed stop 101 to provide an initial torque in the circuit-breaker tripping direction. The relay may have a cup-shaped conductive rotor 19, and internally and externally positioned electromagnetic elements, as shown.
Patent GB-214345-A (GB)
Title: Improvements in or relating to belt fasteners and to the manufacture thereof
IPC: F16G3/04
Filed: 1923-01-24
Abstract: 214,345. Allen, A. J. Jan. 24, 1923. Belt fastenings of the type comprising a hinged pair of U- shaped sheet-metal clip members. A single part g<1> on one member engages a central rectangular aperture in the other member, whilst one arm of each member is formed with a single inturned terminal tooth c' adapted to be pushed through the belt and clinched over the edge of an aperture b in the opposite arm, preferably being seated in an outwardly extending groove j so as to lie flush with the fastener.
Patent GB-511832-A (GB)
Title: An improved device for use in practising golf strokes
IPC: A63B69/36
Filed: 1939-01-21
Abstract: 511,832. Golf-practising appliances. CHAPMAN. H. V. Jan. 21, 1939, No. 2142. [Class 132 (ii)] A golf-practising appliance comprises a mat having a raised rib or wall for guiding the club head, the wall being capable of angular adjustment according to the direction which it is desired that the club head shall take. The wall 11 is removably secured to the mat by a bolt 13 which also passes through a twoarmed tee 14. The tee may be turned into the position shown in Fig. 4 so as to support the ball 18. Instead of employing the tee 14, a combined tee and ball 12, Fig. 1, tethered to an elastic cord 20 may be used. The elastic cord passes beneath the mat and is secured to an abutment 24. After a stroke. the ball :2 is returned substantially to the position shown, by the elasticity of the cord. A hole 16<1> is provided at the other side of the mat to permit the wall to be transferred thereto for use by a left-handed player. To prevent "stopping" when striking the ball, a device may be secured to the wall having two horizontal prongs projecting over the ball.
Patent GB-595765-A (GB)
Title: Improvements in or relating to the production of useful articles from coal
IPC: C04B35/528
Filed: 1945-01-26
Abstract: In the manufacture of moulded articles from finely-subdivided coal of good agglutinating properties moulded without a binder and fired above 550 DEG C., and preferably above 700 DEG C. in an atmosphere which prevents burning, the coal is subjected, either before or after crushing or during the early stage of firing (300-500 DEG C.), to an oxidizing treatment in order to prevent intumescence during firing. The oxidizing treatment may be effected by heating in an air oven to about 150 DEG C., provision being made for turning the coal periodically, by introducing into the firing atmosphere an oxidizing gas, or by adding to the powdered coal 1-5 per cent. of an inorganic or organic oxidizing-agent, e.g., lead peroxide, copper oxide, mercuric oxide, manganese peroxide, nitrobenzene, or benzoyl peroxide.  If the oxidizing treatment is effected before moulding, a lubricant such as graphite may be added to the powdered coal.  The methods of comminuting, mixing, moulding, firing, electroplating, and glazing are the same as in Specification 595,759.  According to the Provisional Specification, oxidation is effected by heating in air at 110 DEG C., or by the addition to the air of oxides of nitrogen, chlorine, or other halogen, or by first passing the air through an ozonizer.  To decrease the porosity of the product, it may be treated as described in Specification 593,079 or by immersing in a liquid monomer of a polymerizable substance.
Patent GB-681349-A (GB)
Title: Improvements in and relating to arc lamps
IPC: H05B31/00
Filed: 1949-01-26
Abstract: 681,349. Arc lamps. GRETENER. E. Jan. 26, 1949 [April 9, 1948], No. 2202/49. Class 39(i) An arc lamp, Fig. 2, in which the arc and arc flame 0-0 are concentrated into the space in front of the positive crater of the positive carbon 9 by means of an air stream issuing from holes 14 in the nozzle 11 and converge towards the negative electrode 2, the air and arc gases being withdrawn through a suction pipe 4 on the negative side of the arc, is characterised in that the axis 1-1 of the negative electrode and the axis 3-3 of the suction pipe are not coaxial and not aligned with the axis 10-10 of the positive electrode. As shown in Fig. 2 the axes of the negative electrode and the suction pipe are inclined to each other and the axis of the positive electrode approximately bisects the angle between them. The centre of the orifice 5 of the suction pipe and the tip of the negative electrode lie along the axis of the positive electrode, the negative electrode passing through a hole 6 in the suction pipe the port end 7 of which forms a guide for the negative electrode and a gap 21 or separate holes at the rear of the negative electrode allowing air to enter the suction pipe and remove evaporated matter from the arc electrodes. The negative electrode is preferably provided with a thin copper coating to prevent oxidation. In modifications the tip of the negative electrode is positioned below the axis of the positive electrode and the electrodes can be arranged parallel to each other. When a reflector is used the suction pipe 4 is passed through a centre hole in the reflector. Homogeneous distribution of the brilliancy in the arc is effected by a magnet coil mounted coaxially with the positive carbon 9 around the nozzle 11 which causes the arc to rotate at high speed.
Patent GB-794988-A (GB)
Title: Improvements in or relating to circuit arrangements for improving signal to noise or interference ratio
Inventor: KEALL OSWOLD EDWARD
IPC: G01S7/292
Filed: 1955-01-26
Abstract: 794,988. Pulse radar. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Jan. 9, 1956 [Jan. 26, 1955], No. 2303/55. Class 40 (7). The signal/noise ratio of a pulse radar receiver is improved by introducing time delays into the I.F. amplifier and combining undelayed signals with successively delayed signals. In one embodiment, undelayed signals from valve 3 are added to signals from valves 4, 5 6 which have been successively delayed by delay lines 71, 81, 91. Each time delay is made equal to a whole number divided by the centre frequency of the LF. amplifier and is not less than the reciprocal of twice the bandwidth (measured between points 3 dB. down). The signal to noise improvement is then equal to the square root of the number of delays. In a modification Fig. 2 (not shown), a distributed delay line is used instead of lumped components, and in another modification, Fig. 3 (not shown), the delay line is split into sections by buffer amplifier valves. The gain of each amplifier may be varied. Reference has been directed by the Comptroller to Specification 773,356.
Patent GB-607048-A (GB)
Title: Improvements in valve grinding tools
IPC: B24B15/08
Filed: 1946-01-24
Abstract: 607,048. Screwing; tapping; inserting screws. PRINCEP ENGINEERING CO., Ltd., and CLOUGH, C. Jan. 24, 1946, No. 2318. [Class 83 (iii)] [Also in Group XXIII] A hand - tool in which the tool is given a progressive, oscillatory motion for screwing or screw-driving comprises mutilated gear-wheels 23 and 24 mounted on a shaft 21 and engaging a star-wheel 27 on the tool-shaft 16. The gears are contained in a gear - box and a thrust-bearing 17 is provided.
Patent GB-1505765-A (GB)
Title: Internal combustion engine with a pneumatic regulating arrangement for a fuel-injection pump
IPC: F02D1/06
Filed: 1976-01-21
Abstract: 1505765 Regulating fuel injection DAIMLER-BENZ AG 21 Jan 1976 [22 Jan 1975]  02340/76 Heading F1B A pneumatic regulating arrangement, for a variable-output fuel-injection pump, of an I.C. engine comprises a pneumatic actuating part 11  which moves the output-adjusting element 13 of the pump in the direction to reduce fuel output when subjected to a vacuum, a force-storage means 16 which acts on element 13 in the opposite direction, an air throttling element 20, which is connected to an arbitrarily operable lever 10 and is disposed in the air induction passage 5 of the engine, a pressure-equalizing connection 24 between the actuating part 11 and a point in passage 5 which is at, or downstream of, the throttling element and a passage 25 which by-passes the throttling element 20 and in which is disposed a closure element 29, which is elastically biased in the closing direction and is subjected to the pressure difference across the throttling element, which pressure difference loads the closure element in the opening direction. The bias imposed by spring 30 is adjustable by screw 31. Connection 24 opens into the throat of a Venturi inserted in passage 5, throttle flap 20 is shaped so that it does not completely close the Venturi insert and a screening wall separates connection 24 from the edge of the flap. In a modification, Fig. 3 (not shown) passage 25 is replaced by an aperture through the flap 20, a valve-member is provided on the downstream surface of the flap and is spring-loaded to the closed position. The pressure difference across the flap tends to open the valvemember. When lever 10 is released and flap 20 closes, the by-pass valve opens and reduces the degree of vacuum acting on part 11 so that spring 16 moves element 13 to increase the amount of fuel supplied to the engine and hence the idling speed.
Patent GB-956116-A (GB)
Title: Process for the manufacture of dicyclohexylamine
Filed: 1963-01-18
Abstract: Dicyclohexylamine is manufactured by hydrogenating at between room temperature and 100 DEG C., at below 100 p.s.i.g., a mixture of phenol and aniline within the molar ratio range 40:60 to 60:40, in presence of metallic palladium, the latter comprising at least 0.45% by weight of the mixture of reactants.  U.S.A.  Specification 2,571,016 is referred to.
Patent GB-580597-A (GB)
Title: Improvements in or relating to kettles
IPC: A47J27/21
Filed: 1945-01-31
Abstract: 580,597. Kettles. BETTS, C. I., and ROBINSON, F. Jan. 31, 1945, No. 2426. [Class 66] A kettle of the kind having a shield 5 to protect the hand from steam from the filling opening, and to prevent spilling the contents when pouring, has a hollow bead along the edges of the handle 2 and of the shield 5, stiffening wire 10 being inserted in the beads and projecting from the one part into the beads of the other, the two parts being secured together as by soldering a tongue 11 of the handle to the shield 12. Wires 10 may project from the lower part of the shield and lie along the lower edge 14 of the shield or within the kettle. The handle may be stiffened by a trough-shaped insert.
Patent GB-142534-A (GB)
Title: Improvements in powder distributors
IPC: B05B7/14
Filed: 1919-01-31
Abstract: 142,534. Lefroy, H. Maxwell-, and Cheesman, P. E. Jan. 31, 1919. Powder blowers. - A powder receptacle A has a slidable pipe B passing into it, on which is mounted a plate E. Holes G are provided in the pipe near the underside of the plate, through which passes air admitted through an inlet H and a hole F, becoming thus charged with powder and issuing from an outlet J.