baber/WOPTO huggingface dataset:
Patent GB-717054-A (GB)
Title: Improvements in or relating to clocks
IPC: G04C10/02
Filed: 1952-02-18
Abstract: 717,054. Clocks. ANCIENNE MANUFACTURE D'HORLOGERIE PATEK PHILIPPE & CO., SOC. ANON. Feb. 18, 1952 [Feb. 24, 1951], No. 4267/52. Class 139 [Also in Group XL(b)] A clock is characterized by at least one photo-electric cell, means adapted to transform the electrical energy derived from said cell into mechanical energy, and means for storing a quantity of energy and for transmitting it to the movement of the clock thereby to enable this movement to operate at periods when the photo-electric cell is not excited. According to the description one or more photoelectric cells, excited by daylight or artificial light, drive an electric motor which winds up a mainspring or a weight. If desired the current from the cell or cells may charge a small accumulator which when required provides the energy for driving the electric motor. In another suggested arrangement the current from the cell or cells maintains the oscillations of a body which actuates the clock winding mechanism by a pawl and ratchet.
Patent GB-1025293-A (GB)
Title: Mercury arc rectifier connection with parallel discharge paths
IPC: H02M7/15
Filed: 1963-02-04
Abstract: 1,025,293. Converting. ALLMANNA SVENSKA ELEKTRISKA A.B. Feb. 4, 1963 [Feb. 15, 1962], No. 4408/63. Heading H2F. A mercury arc valve arrangement has two or more discharge paths in parallel, each with its own control grid, different impedances in each path and a control arrangement which ignites the separate discharge paths at different instants. The second path is ignited when the current in the first path reaches a desired value. All the paths except for the first one to ignite, which has the largest impedance in it and is also the last path to cease conducting, require fewer voltage grading grids than the first path because they commutate at a voltage not much greater than the arc drop in the first path. Only the first path commutates at full voltage. The impedances may be anode reactors shunted by damping resistors and temperature-sensitive resistors. The last path to be ignited may have no impedance in it.
Patent GB-1513126-A (GB)
Title: Signal translation circuits
IPC: H03G3/20
Filed: 1975-04-30
Abstract: 1513126 Measure core loss in steel samples BRITISH STEEL CORP 30 April 1975 [31 Jan 1974] 4499/74 Heading G1N [Also in Division H4] In a method of testing the core loss of a sample of steel, the steel is formed into an Epstein square core having a primary winding 4 coupled to a secondary 8, connected with an air flux mutual inductor 12 to compensate for flux transfer between the primary and secondary windings in the absence of core 2. The core loss is determined by feeding signals representative of the current through primary winding 4 and the voltage across secondary winding 8 to a multiplier 20. Since the current through the sample will vary considerably from sample to sample an automatically variable sensitivity control circuit 28 is provided which has its gain adjusted in steps, see Div. H3-5, to maintain the signal level applied to the multiplier in a predetermined range. Core loss is displayed on the analogue or digital voltmeter 26.
Patent GB-860858-A (GB)
Title: An improved process for separating copper, nickel and other impurities from alloys having a basis of lead antimony and tin
IPC: C22C3/00
Filed: 1959-02-09
Abstract: Cu, Ni and other impurities are separated from a complex alloy containing principally Pb, Sb and Sn by reacting the alloy with a sulphur-oxygen compound (e.g. calcium or lead sulphate) and a flux at high temperature to form a matte rich in Cu and Ni and a slag containing the Pb, Sb and Sn.  The complex alloy is preferably crushed or ground to powder and mixed with the calcium sulphate, flux and additional sulphur.  The resultant powder is then moistened and set into bricks which are treated in a reverberatory or rotary furnace to form the matte and slag.
Patent GB-1482891-A (GB)
Title: Upset head on a tension wire
IPC: E04C5/12
Filed: 1976-02-05
Abstract: 1482891 Forging BUREAU BBR Ltd 5 Feb 1976 [7 Feb 1975] 04534/76 Heading B3H [Also in Division E1] An upset head on a tensioning wire 4 comprises a supporting seating surface 6 at the transition between the upset head and wire, the head possessing a maximum diameter located within the third of the height of the head closest to the seating surface, the diameter of the head at its free end being at most equal to the wire diameter and the head possessing the shape of a substantially truncated cone at its end section. To form the head, the wire is held between clamping jaws 1, 2, which form the seating surface 6 under the head as it is upset, and the shape of the recess in the tool 3 centres the wire end at the start of the upsetting operation. The use of a die having a truncated conical recess results in less material being deformed than in forming a conventional head shown in phantom in the drawing.
Patent GB-793330-A (GB)
Title: Improvements in retaining ring applying tool
IPC: B25B27/20
Filed: 1956-02-14
Abstract: 793,330. Riveting tools. WALDES KOH-INOOR, Inc. Feb. 14, 1956 [Feb. 25, 1955], No. 4569/56. Class 61. A tool for applying a self-locking retaining ring to a rivet or the like comprises a pair of arms pivoted together at the ends remote from the heads and having plate-like gripping heads 30, 31, one head 31 having a transverse opening 32 therethrough for receiving the rivet or the like and a shallow countersunk ring retaining recess 33 communicating with and extending above the opening 32, the other head 30 having mounted thereon a transversely extending centering member comprising an adjustable screw 34 adapted to push the rivet or the like through the ring on closing the tool arms. The arms 25, 26 are pivoted together at 28, a spring 29 urging them apart. A hand lever 38 pivoted at 39 to the arm 26 and adapted to press against an abutment plate 41 on the other arm 25 effects movement of the arms towards one another. The minimum spacing of the heads 30, 31 is determined by an adjusting screw 36. In a modification the lower lever arm is bolted to the top surface of a bench and the operating lever is connected to a foot pedal. Specifications 627,059 and 685,982 [both in Group XXV] are referred to.
Patent GB-337699-A (GB)
Title: Alternating current generator with modulation frequency
IPC: H02K39/00
Filed: 1930-02-11
Abstract: 337,699. Dornig, W. Feb. 14, 1929, [Convention date]. Inductor alternators.- A homopolar inductor alternator has slots carrying alternating current windings on one half the stator periphery and the rotor is formed with teeth on one half the periphery so that the frequency produced is modulated. In the machine shown, if a frequency of 500 is required at a speed of 1200 r.p.m., the stator 1 should have 50 slots and the rotor 2, 25 teeth. To produce a modulation frequency of one per revolution, the stator has 26 slots, the windings of which are series-connected, and the rotor, 13 teeth. If modulation frequencies higher than one per revolution are required, the slotted and toothed parts may be distributed in two or more equal peripheral arcs. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the following. In order to obtain a sinusoidal modulation of the basic frequency, the number of windings per slot may increase from the ends to the middle of the band of slots. If two stators and rotors are employed, one unit is displaced by 180‹ with respect to the other so as to balance the rotating masses. The two stators and rotors also may have different frequencies. This subject-matter does not appear in the Specification as accepted.
Patent GB-308425-A (GB)
Title: Electrical plug and socket coupling with longitudinally divided sockets
IPC: H01R13/68
Filed: 1928-02-14
Abstract: 308,425. Bing, M. Feb. 14,1928. Plug couplings; fusible cut-outs.-The socket elements of a plug and socket coupling are provided with jaws which clamp the ends of a fuse the other end of which is clamped in jaws on the terminal strips, the various pairs engaging blocks projecting from a plate which forms a part of the enclosing box. Fig. 1 shows in plan a plate a forming the box cover on which are fixed blocks b, c, c<1>. The sockets are formed by two metal members d, e the ends of which form jaws for clamping fuse members s, the other ends of which are clamped in jaws p formed on terminal connecting strips f. The members d, e, f embrace the blocks b, c, c<1> the latter two of which carry clamping screws g, g<1> for the leading-in wires. The cover a is fixed to the box k by a screw x which engages a nut l fixed in a square hole in the base of a box k as shown in Fig. 2.
Patent GB-676948-A (GB)
Title: Regulating device for governing the velocity of a machine shaft
IPC: G05D13/00
Filed: 1951-02-26
Abstract: 676,948. Centrifugal governors. MASCHINENFABRIK OERLIKON. Feb. 26, 1951 [March 31, 1950], No. 4666/51. Class 57 A centrifugal governor comprises at least one weight in the form of a bell crank, one arm 32 of which bears against a spring 4, arranged co-axially of the driving shaft, and the other arm 31 is forked and embraces a projection having ports 12 so as to vary the opening of the ports and vary the pressure in a regulating system. The ports 12 communicate through passages 11 and 81 with the regulating system. The abutment 7 for the spring 4 is screwed into the housing 1 and has a tongue and groove connection 71 to the cover 8 so that by rotating the cover the loading of the spring can be adjusted.
Patent GB-1176901-A (GB)
Title: Ionization Pressure Gauge
Inventor: VEKSHINSKY SERGEI ARKADIEVICH
IPC: H01J41/06
Filed: 1968-01-30
Abstract: 1,176,901. lonization manometers. S. A. VEKSHINSKY, and G. A. NICHIPOROVICH. 30 Jan., 1968, No.4699/68. Heading H1D. A control anode 4 is located outside the space bounded by the main anode 1, ion collector 2 and shield 3, and in close proximity to the axial thermionic cathode 5 of a magnetron ionization pressure gauge. The control anode is used to measure the emission current, which must be maintained constant during pressure measurement. The prior use of a control anode disposed inside the main anode is referred to. The cathode 5 is attached to a holder 7 and tensioned by a spring 6. The aperture in the shield 3 may be omitted in which case the shield divides the cathode into two parts and is at cathode potential. The magnetic field is supplied by an external permanent magnet or coil 9. In an alternative arrangement (Fig. 2, not shown), the anode 1 is a magnet. The envelope 8 may be of glass or metal.
Patent GB-216185-A (GB)
Title: Improvements relating to dowels and sockets
IPC: B22C7/00
Filed: 1923-02-19
Abstract: 216,185. Turner, J. Feb. 19, 1923. Addition to 167,417, [Class 89 (ii), Hooks &c.]. Drawings to Specification. Drilling.-In connecting parts of wooden patterns or the like by means of dowels and socket plates, the dowel is temporarily attached to one part by means of prongs and used as a pivot for cutting out a recess for the socket plate.
Patent GB-1164218-A (GB)
Title: Compressed Air, Pressure-Sensing Actuator
IPC: B63G8/18
Filed: 1968-01-30
Abstract: 1,164,218. Paravanes. CONTINENTAL OIL CO. 30 Jan., 1968 [3 May, 1967], No. 4781/68. Heading B7A. [Also in Division G1] A pressure responsive device 10 (see Division G1) maintains a paravane 14 at a predetermined depth below the water by adjusting the attitude of a diving plane 44, the shaft 42 of which is connected by a linkage 40 to a rod 34 of the device.
Patent GB-475848-A (GB)
Title: Improvements in and relating to the electrolytic coating of metals
IPC: B65G49/04
Filed: 1937-02-17
Abstract: 475,848. Electrolytic surface treatment of metals ; conveyers. FORD MOTOR CO., Ltd. Feb. 17, 1937, No. 4798. Convention date, May 16, 1936. [Class 41] [Also in Group XXX] Metal articles are carried through an electrolytic bath by a conveyer having means for connecting alternate work-holders to. the opposite poles of an alternating current supply. The apparatus is particularly adapted for producing rust-proof phosphate coatings on iron or steel by treatment in a phosphoric acid bath. In the apparatus shown in Fig. 4, the links of the conveyer chain 17 are provided with conical heads 19 over two of which is mounted a bracket 20 from which the workholder is suspended by a pair of bars 21. Resilient brushes 33 connect the bars 21 to the upper of a pair of electric supply rails 32, the brushes of the preceding and succeeding work-holders making contact with the lower rail. For transferring the work-holders from one bath to the next of a series, a rotating member 27 is provided having a sliding arm 28 on the end of which is mounted a roller moving in a trapezoidal guide 26, Fig. 3. The roller carries a pin 29 adapted to engage a hook 30 on the work-holder.
Patent GB-154242-A (GB)
Title: Improvements relating to the detinning of tinned iron scrap
IPC: C25C1/14
Filed: 1919-02-26
Abstract: 154,242. Adam, M. A., Stevenson, J., and Mabbitt, A. T. Feb. 26, 1919. Tin chlorides.-Tin is dissolved from tinned scrap &c. by a strong solution of tin and iron chlorides, preferably containing a small proportion of hydrochloric acid. A suitable solution is made by treating a 25 per cent solution of ferric chloride with 1 per cent of hydrochloric acid and with metallic tin until it contains 6.5 per cent stannous chloride and 1.5 per cent stannic chloride. This solution, after use for dissolving tin from scrap, is electrolyzed to deposit a small amount of tin, equal to that dissolved from the scrap, for instance 0.2 per cent of the solution. The scrap may be placed in two enamelled baskets a, Fig. 1, hung from the ends of a beam b centrally supported by lifting tackle from a carriage c. Three pairs of tanks f, g, h are successively used for the treatment, the liquid being admitted from a heater w by separate cocks y and afterwards pumped to a storage tank u, whence it is led through a cock t to the electrolytic cell k and back to the heater. After de-tinning, the scrap is washed in tanks i and coppered or treated with lime water in tanks j.
Patent GB-1127331-A (GB)
Title: Slide projector
IPC: G03B23/04
Filed: 1967-02-01
Abstract: 1,127,331. Slide projector. L. CLAUSSEN. Feb.1 1967 [Feb.1, 1966], No.4838/67. Heading G2J. A slide projector has a loading compartment for a stack of slides to be projected separated by partitioning means from a store for a stack of projected slides, and comprises a slide changing means movable from one side of the partitioning means to the other such as to be able to extract or replace slides in either the loading compartment or the store. As shown in Fig. 1, the slide changing means comprises a slide transporting member 6 linked via a parallel linkage 11, 12 to a projection stage 7 such that they move vertically together. The partitioning means is a gap formed by two rails 4 through which the slides 1 in the loading compartment 2 or store 9 may be moved by the transporting member 6. The vertical movement of the projection stage 7 is limited by a stop 13. A slide is fed from the loading compartment 2 or store 9 by lifting or depressing the transport member 6 respectively and then moving horizontally; the projected slide is then placed in either the loading compartment or the store by again lifting or depressing the transport member 6. On removal of the transport member 6, slides from the store 9 are moved into the loading compartment under the action of a spring 10. In an alternative embodiment, the transport member and projection stage are pivotally mounted to rotate together, and are spring urged together so that the lifting and depression described above is carried out by movement about the pivot.
Patent GB-347785-A (GB)
Title: Means for collecting and utilizing unvaporised fuel in internal combustion engines
IPC: F02M33/04
Filed: 1930-02-13
Abstract: 347,785. Recovering condensed fuel. ROWLEDGE, A. J., Ellerslie, Trowels Lane, and LOVESEY, A. C., 198, Burton Road, both in Derby. Feb. 13, 1930, No. 4858. [Classes 7 (ii) and 7 (iii).] Fuel which condenses in the volute chamber j of a supercharger is drawn into the engine by a suction device which comprises a pipe m, l, leading from the supercharger delivery pipe k to the carburetter a, or the atmosphere, and containing a venturi passage p from which a pipe y leads to the chamber j. The connection with the venturi may be formed by an annular passage v<1>, Fig. 2, facing the direction of flow or by radial holes. If the pipe l leads to the atmosphere it is provided with a lightlyloaded non-return valve. The Provisional Specification describes the application to an induction system not provided with a supercharger.
Patent GB-578970-A (GB)
Title: Improvements relating to electrical control systems for aircraft
IPC: B64C13/00
Filed: 1944-03-16
Abstract: 578,970. Automatic control systems for aircraft. EVERSHED & VIGNOLES, Ltd., and MARCHMENT, W. T. March 16, 1944, No. 4925. [Class 38 (iv)] [Also in Group XXXVII] Speed.-In a system for automatically synchronising the movement of two or more lifting or control surfaces of an aircraft, electrical step-by-step transmitters, mechanically coupled to the surfaces, operate stepby - step receivers driving the sun members of a number of planetary gears, the planet members moving when the synchronism is lost to stop, or slow down by intermittent stopping, the appropriate surface until synchronism is restored. Three split field reversible D.C. series motors M1, M2, M3 geared to separate aircraft flaps (not shown) are controlled by a common three-position controller 21 to move the flaps to an up (housed), a down (landing) or an intermediate (take-off) position. The motors are energised from a D.C. source 22, 30 to run in the appropriate direction by the movement of the controller from one position to another, three-position limit switch sets L1, L2, L3 geared to respective motors ensuring that they stop at the desired position. The flap driven by motor M1 is kept in step with that driven by motor M2 by a system of rotary transmitter switches T1, T2, geared to respective flap motors, operating step-by-step receiver motors R1, R2 associated with a differential gear 5, an arm 7 on the output shaft of which moves to open switch 11 or 12 and stop either of the motors, if it gets in advance of the other, until the motors are again in step. A similar system involving transmitters T2, T3, receivers R2, R3, differential gear 6, arm 8 and switches 13, 14 operates to keep motors M2, M3 in step so that all three flaps are kept in step. Electromagnetic relays C1, C2 are selectively energised according to the direction of flap movement and change over the connections to switches 11 and 12 and switches 13 and 14 to ensure that the correct motor is stopped when the motors get out of step during flap movement in either direction. Hydraulic operation of the flaps with motors M1, M2, M3 controlling the valves of jacks and transmitters T1, T2, T3 directly coupled to the power plungers is referred to.
Patent GB-339549-A (GB)
Title: Improvements in eccentric stroke adjusting mechanism for presses
IPC: B30B1/26
Filed: 1930-02-13
Abstract: 339,549. Wolfe, S.., (Schuler Akt.-Ges. L.). Feb. 13, 1930. Eccentrics. - In crank presses wherein the crank comprises an eccentric member b adjustably mounted on a crank a on the shaft, the eccentric b carries teeth c which engage teeth on a driving- sleeve e carried by the shaft. The sleeve is moved axially into and out of register by eccentric pin-andslot mechanism. The sleeve e carries two bolts f, f<1> connected by an eccentric pin r which slides in slots in bushes t mounted in a transverse hole g in the shaft.
Patent GB-588859-A (GB)
Title: Improvements in or relating to electrical means for controlling and indicating the speed of engines, motors and machinery
IPC: G01P3/56
Filed: 1944-02-01
Abstract: 588,859. Automatic control systems. MORRISON, A. E., and MORRISON, A. C. Feb. 1, 1944, No. 5136/45. Divided out of 588,821, [Group XXXI]. [Class 38 (iv)] Speed.-In a speed governing system for a machine, the rectified output of an alternator driven by the machine energizes, through a tuned circuit, a solenoid which, on rise of machine speed, operates means to reduce' that speed. In an automatic speed governing system for an internal-combustion engine, the engine drives a high-frequency inductor alternator 1 of the permanent magnet type, the output of which is rectified at 4 and energizes a solenoid 5 tending to close the engine carburetter throttle 6 against the action of a spring 7. Sensitivity of control is increased by a tuned circuit 2, 3 in series with the alternator output. A second solenoid 8, energized from alternator 1 through an inductance 9 and a rectifier 10, provides a progressively decreasing opposition to solenoid 5 with increasing engine speed until, at a predetermined high speed, spring 7 is relieved so that throttle 6 closes under the action of a light spring 12 which also closes the throttle on failure of the governing circuit. The output of alternator I in series with a condenser or tuned circuit may also light a lamp or operate a signal arm to indicate that a certain speed has been exceeded. In the application of the system to the speed control of an electric motor, the solenoid actuates one or more motor controller switches.
Patent GB-137420-A (GB)
Title: Improvements relating to fastening or securing devices for wagon and like sheets or coverings
IPC: B61D39/00
Filed: 1919-03-01
Abstract: 137,420. Jackson, J., Jackson, R., Toulmin, J. H., and Coulthard, T. March 1, 1919. Coders, wagon and like.-In securing-devices of the kind described in Specification 5691/13 for wagon sheets or coverings, the plate or leaf spring f with which the short arm e of the bell-crank a engages is of arched form, as shown. The spring plate is mounted in a base-plate c, and one end is secured by a bolt h, or by a tongue of the plate spring engaging a slot in the base-plate member; or both ends of the spring may be free to creep during compression by the arm e.
Patent GB-452371-A (GB)
Title: Improvements in and relating to alternating current relays
IPC: H01H53/02
Filed: 1935-02-18
Abstract: 452,371. Induction relays ; control of A.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. Feb. 18, 1935, No. 5189. Convention date, Feb. 17, 1934. [Classes 38 (iii) and 38 (v)] An alternating-current relay has a stationary magnetic frame 16 provided with an air gap across one portion of which the flux intensity is greater than across other portions, a shortcircuited conductor 18 of non-magnetic material being mounted to move to and from a position in the higher intensity field and magnetic means being associated with the conductor for producing a force thereon, when it occupies a position in the high intensity field, substantially greater than when it is moved from that position, whereby the conductor is maintained in the high intensity field until the current in an operating winding 12 is reduced below the value required for the initial operation of the relay. The frame 16 is E-shaped and has its limbs 14, 45, 46, formed with portions of restricted cross-section the conductor 18 being operated from a position adjacent the portions of restricted cross-section to a position between projecting portions 14a, 14b, 45a, 46b, of the frame 16 thereby closing contacts 32, 34. The conductor 18 has forked arms 23, 24, by which it is attached to a cantilever spring 26 mounted on a bracket 20, the spring 26 having an extension 30 lying between the arms 23, 24, and carrying the movable silver contact 32. The conductor 18 carries magnetic plates 50, 51, which co-operate with the poles of the frame 16 to give snap-action opening and closing of the relay contacts. For starting a split phase induction motor the operating coil 12 carries the current in the running winding of the motor so that the contacts 32, 34, are closed to insert the starting winding, and, when the motor reaches full speed, the contacts open to disconnect the starting winding. The motor may constitute the drive for a refrigerating machine and may be controlled by a switch responsive to temperature variations, an overload device also being provided.