baber/WOPTO huggingface dataset:
Patent GB-707473-A (GB)
Title: Improvements in or relating to an electric circuit interrupter having arc-cxtinguishing means
IPC: H01H9/46
Filed: 1951-09-26
Abstract: 707,473. Arc-rupturing in switches. ALLISCHALMERS MANUFACTURING CO. Sept, 26, 1951 [Oct. 7, 1950], No. 22487/51. Class 38(5) The arcing products, such as metallic particles, produced at the terminals of an arc in a chute 15, are kept from the region between the arc runners 22, 24, by extending at 29, 31 the end plates of the chute. The runners each comprise portions 23, 24 or 21, 22 and the parts 29, 31 are arranged parallel therewith, so that the arcing products escape through the space between the runners and the members 29, 31. The arc is drawn along the runners by a series blowout coil 16.
Patent GB-942092-A (GB)
Title: Improvements in or relating to permanent magnets and their manufacture
Inventor: TORRY ALAN
IPC: C30B13/00
Filed: 1961-06-22
Abstract: 942,092. Zone - melting a magnetic alloy. DARWINS Ltd., and ENGLISH STEEL CORPORATION Ltd. Sept. 20, 1962 [June 22, 1961 ; July 1, 1961], Nos. 22564/61 and 23830/61. Heading B1S. A permanent magnet is formed from an ironnickel -aluminium-cobalt alloy which has been given a columnar crystal structure by zone-melting in an elongated tube of fused silica with the aid of induction heating. The alloy may contain 10-30% of nickel, 6- 11% of aluminium, 8- 40% of cobalt, 0À5-8% of copper, and 0À5- 3À25% of niobium, and small amounts of titanium, silicon, sulphur, zirconium, and tantalum, the balance being iron. In the case of a liquid-solid recrystallization interface of 1420-1430 ‹C, the molten zone may be heated to 1600 ‹C. and the temperature drop in the first cm. from the interface may be 200 ‹C. Cooling may be effected by playing water or air on the silica tube below the induction coil. The alloy may be fed into a preformed tube as a precast or sintered rod or as a powder. The tube may be formed in situ from a dipped rod (Fig. 2, not shown). The alloy may be passed continuously through a stationary induction coil and cut up into lengths or may be passed through as successive charges separated by a thin layer of refractory. The tube may be passed through the induction coil together with the alloy (Fig. 4, not shown) or may be reciprocated or maintained stationary. As shown in Fig. 1, a precast alloy rod 1 is passed downwards together with a tube 2 through an induction coil 4, the bottom turn of which surrounds a graphite tube 5. Cooling is effected by a water spray ring 7. Specifications 634,686, 634,700, 652,022 and 661,727 are referred to.
Patent GB-336026-A (GB)
Title: Improvements in or relating to punching or drifting machines
IPC: B21J9/04
Filed: 1929-07-23
Abstract: 336,026. Holman, A. T., Holman, K.. J., and Rule, J. July 23, 1929. Percussive drills.-A device for enlarging the boreholes of hollow drill steels comprises a drift 9 carried by an arrangement similar to that described in Specification 335,004. When the drift is brought into contact with the work 24, and the valve 14 opened air flows to the space at the rear end of the piston 2 and also through passage 25 to the bore 35. Since the anvil block 5 fits this bore closely the cylinder head 3 is forced forward thus assisting to feed forward the cylinder 1. Immediately before the blow the rear exhaust ports 26 are opened and the space 35 is exhausted. In withdrawing the drift, air passes from the front end of the cylinder through passage 27 to the bore 38, the part 37 of the anvil member being then in its forward position, thus opening the end of the channel 27.
Patent GB-298744-A (GB)
Title: Improvements in accumulator cases for miners' electrical lamps
IPC: F21L4/00
Filed: 1927-08-29
Abstract: 298,744. Gosmann, W., and Concordia Electrizitõts Akt.-Ges. Aug. 29, 1927. Battery lamps.-In a miner's electric lamp the accumulator casing 1 has a hinged closure 3 at the bottom through which the accumulator is inserted, springs 13 serving to press the cover 7 of the accumulator against an internal flange 14 provided in the hinged lid 2 of the casing. The cover 7 carries the electrodes 6 as shown and contact is made with springs 9 carried by the lid 2 which is also provided with a lamp-socket 10. The closure 3 has a hinged member 15 to the free end of which is pivoted a lever 16. The short arm 18 of the lever engages a projection 17 on the casing so that the closure is forced home by swinging lever 16 into contact with the casing. A hasp 19 on the lid 2 engages over a projection 21 on the casing and has a spring-pressed pin 23 which snaps into an aperture in projection 21. The lower end of hasp 19 overlaps the free end of lever 16 and the lid 2 and closure 3 are thus secured simultaneously. Release is effected by withdrawing pin 23 by means of a magnet.
Patent GB-1532887-A (GB)
Title: Vehicle safety belt inertial retractor
IPC: B60R22/40
Filed: 1976-06-02
Abstract: 1532887 Seat belt retractor FIRESTONE TIRE & RUBBER CO 2 June 1976 [2 April 1976] 22747/76 Heading A3V Vehicle safety belt retractor 11 comprises a belt drum 13 fixed on a shaft 32 rotatably mounted in a frame 16 and biased by coil spring (14) to rewind the belt. Spider 38 rotates with shaft 32 and has a leg 39 protruding through aperture 41 in ratchet wheel 36 (freely rotatably mounted on shaft 32) into cam slot 78 in pawl 44. Pawl 44 is pivoted on pin 47 on ratchet wheel 36. Leg 40 of spider 38 is connected by spring 45 to ratchet wheel 36. Excessive acceleration of shaft 32 due to excessive acceleration of belt withdrawal causes ratchet wheel 36 to lag spider 38 and leg 39 to move pawl 44 into engagement with internal teeth 73 of ratchet wheel 50 nesting inside ratchet wheel 36. The consequential rotation of ratchet wheel 50 causes its projections 68 to move lever 26 on lock bar 25 pivoted in frame 16 and hence lock bar moves to engage ratchet wheels 20, 21 to lock drum 13. Pendulum 33 tilts upon excessive vehicle acceleration to move lever 34 to lock ratchet wheel 36. As the belt is withdrawn the rotation of the spider relative to the flywheel causes drum locking as described above. Teeth 73 face the opposite direction to the teeth on ratchet wheels 20, 21 and there are the same number of teeth on wheels 50 and 20.
Patent GB-614805-A (GB)
Title: Improvements in and relating to the modulation of electric pulses
IPC: H03K7/08
Filed: 1946-07-31
Abstract: 614,805. Pulse modulation; multiplex pulse signalling; pulse shaping circuits. GENERAL ELECTRIC CO., Ltd., and LEVY, M. M. July 31, 1946, No. 22823. [Classes 40 (v) and 40 (vi)] Trapezoidal pulses are used to trigger a multivibrator or other pulse generator to produce pulses time modulated in accordance with the instantaneous value of a signal voltage. The pulses are generated by blocking pulses P applied to a normally conducting circuit comprising in series a battery 14, discharge valve, e.g. diode 13, cathode resistance R2, anode resistance R1 with condenser C in parallel, and a signal source 12, the grid of one valve of the multivibrator 10 being connected to the anode of the valve 13. The pulses P cause stoppage of the normal current, producing a sharp rise in anode voltage of the valve, a gradual linear rise due to discharge of the condenser C, and a sharp fall on each pulse P ceasing. The triggering of the multivibrator occurs at the instant on the crest of each trapezoidal pulse at which the sum of the corresponding voltage and the modulating voltage equals the triggering voltage. The trapezoidal pulse crests are independent of the shape of the applied pulses P. Alternatively, the pulses P may be negative and applied to the grid of a triode. The multivibrator comprises three valves, the last back coupled to a cathode resistance of the first valve. A number of first valves may be used in parallel for multiplex signalling, the last two valves being common to all the channels. The first valve may comprise a common anode, a common cathode or plurality of cathodes connected in parallel, and independent control grids. The pulse generator may alternatively be a back biassed valve in which the trapezoidal pulses initiate a flow of current, the anode voltage being differentiated to select the pulse due to the leading edge of the anode voltage, or the anode voltage may be used to shock-excite a tuned circuit. According to the Provisional Specification, the modulating valve 13 may comprise independent channel control grids.
Patent GB-501030-A (GB)
Title: Improvements in or relating to means for controlling the output power of electric motors
IPC: G05D3/12
Filed: 1937-08-20
Abstract: 501,030. Electric control systems. VICKERS - ARMSTRONGS, Ltd., and WATSON, J. P. Aug. 20, 1937, No. 22920. [Class 40 (i)] In an electrical hunter follow-up apparatus comprising a power follow-up system of the type wherein a step-by-step transmitter 1 is electrically connected to a step-by-step motor 2, in turn mechanically driving the transmitter through a differential 7 when a sensitive element 18 is displaced, the means provided to displace the sensitive element is connected to the mechanical transmission so as to be restored to a position corresponding to the zero setting of the sensitive element. Upon the primary element 34, being rotated and since the planet wheels 30 are held immovable due to the irreversible worm drive 13, 14, the cam disc 26 is rotated an equal amount, displacing the pin 24 from its central position. in the groove 25, which in turn rotates the sensitive element 18 causing the power follow-up system to operate. The motor 2 will now return the sun wheel 28 to its normal position with respect to wheel 33 and rotation will cease due to the restoring of the pin 24 and the element 18 to their normal positions.
Patent GB-891829-A (GB)
Title: Method of producing a continuous sheet of corrugated synthetic plastics material
IPC: B29C48/08
Filed: 1960-06-30
Abstract: 891,829. Moulding corrugated plastic sheets. BERSTORFF MASCHINENBAU-ANSTALT G.m.b.H., HERMANN. June 30, 1960 [April 5, 1960], No. 22922/60. Class 87(2). A continuous corrugated sheet of synthetic plastics material such as polyvinyl chloride is made by passing a sheet 6 of the material extruded from a wide slotted nozzle 5 between two layers of rolls 10 which press corrugations into both sides of the sheet, these rolls 10 being arranged as shown in Fig. 2 so that the sheet 6 is corrugated first in the centre and then out towards the sides. Heating elements 8 maintain the sheet 6 in the plastic condition until the profiling operation is completed. A pair of rollers 7 between the nozzle 5 and the rolls 10 smooths the sheet 6 and reduces its thickness to the required value. A profiling calender 9 is provided at the end of the apparatus to produce the last shaping operation prior to the sheet being conveyed away from the apparatus. In order to vary the amplitude and pitch of the corrugations, the rolls 10 can be adjusted relative to each other both vertically and axially, the vertical adjustment being effected by screws operated by handwheels 11. The rolls and rollers may be heated or cooled by known means. Where, however, no provision is made for heating or cooling the rolls, these are preferably made from a material which is a bad heat conductor.
Patent GB-626260-A (GB)
Title: Improvements in and relating to the manufacturing of felt slippers or like articles being made in pairs
IPC: A43B1/02
Filed: 1947-08-19
Abstract: 626,260. Making felt slippers, gloves, stockings &c. SAMSONSEN, O. A. Aug. 19, 1947, No. 22995. [Classes 17 (ii) and 141] [Also in Group VIII] Felt slippers, gloves, stockings or like articles made in pairs are made by felting material for a pair of the articles in a single operation on a double last or former having two foot &c. lasts 2 and a single main leg 3, and then cutting the material around the middle of the leg portion at 4.
Patent GB-1236456-A (GB)
Title: A machine for, and a method of attaching a string of sliding clasp fastener interlocking elements
Inventor: WARBURTONON GEOFFREY
IPC: A44B19/40
Filed: 1968-05-15
Abstract: 1,236,456. Sewing. AERO ZIPP FASTENERS Ltd. 15 May, 1969 [15 May, 1968], No. 23060/68. Heading D1G. [Also in Division E2] A machine for attaching a string of sliding clasp fastener interlocking elements 1, Fig. 7, to a flexible material 3, Fig. 9, consists of a device 10 for controlling the distance of each interlocking element from a next element, and a means of sewing or looping the elements to the flexible material 3. The spacing device 10 and the sewing or looping device can be moved relative to each other such that the fastener elements are positioned immediately prior to their attachment to the flexible material. The spacing device 10 consists of a plate or endless band having a plurality of protrusions 11 extending from it arranged to fit into spaces between adjacent interlocking elements, and hence to position them, the device may have a series of recesses or ridges 12, to facilitate its displacement with respect to the sewing or looping mechanism. This displacement between the sewing or looping mechanism and the spacing device occurs in steps which may be either multiples or submultiples of the centre to centre separation of adjacent interlocking elements. The displacing means for the spacing device and the sewing mechanism may be the feed dogs 15, Fig. 9, of the sewing mechanism. Strings of interlocking elements for use with this machine are described.
Patent GB-1164545-A (GB)
Title: Brake Hydraulic Circuit
IPC: B60T13/14
Filed: 1967-05-18
Abstract: 1,164,545. Power steering circuits. CATERPILLAR TRACTOR CO. 18 May, 1967 [13 July, 1966], No. 23175/67. Heading B7H. [Also in Divisions F2 and F4] In an hydraulic circuit for operating brakes by valve 10, and steering or other functions by valve 11, a pump 14 supplies both an accumulator 16 for brake operation, and also the valve 11, from which the fluid circuit back to the reservoir 12 is completed via a Venturi 42 which provides a suction on line 44 to ensure sufficient reduction in the pressure in a brake fluid return pipe 36, upon release of the valve 10, as to completely disengage the brakes. The valve 10 connects the brake pipe 34 to the accumulator charging valve 18 for brake operation and to pipe 36 for brake release. A ball valve 38 ensures that the fluid from the reservoir 12 does not flow into pipe 36 when the pipe pressure drops upon release of the brakes, the suction effect then completing the necessary reduction in pressure in pipe 36. A valve 24 directs some of the fluid from valve 11 via pipe 26 straight to the reservoir, and controls the amount flowing in pipe 28 and through a cooler 30 so that the latter is undamaged, and so that a sufficiently high velocity of flow is maintained to achieve the suction required.
Patent GB-424139-A (GB)
Title: Attachments for metal-milling machines
IPC: B23C3/00
Filed: 1933-08-19
Abstract: 424,139. Attachments for milling- machines. HARRIS, G. C. L. J., Longfleet Motor and Engineering Works, Fernside Road, Poole, Dorset. Aug. 19, 1933, No. 23189. [Class 83 (iii)] An attachment for a milling-machine to enable boring or screw cutting operations to be performed comprises a tool-holding spindle which may be rotated and fed axially by the machine driving gearing. The hollow mandrel 1 supporting cone pulleys 2 carries a driving plate 3 with a set screw 4 engaging a slot in a boring-bar 5. The mandrel 1 carries a gear wheel 6 connected by change gearing, which may include reversing-means and is mounted on an arm 27, to a wheel 26 keyed on a short shaft 19 mounted in a hollow guide member 12. The guide 12, clamped in the sleeve 11 of a bracket 8 secured to the machine frame, encloses a leading screw 15 which may be coupled to a driven shaft 19 by means of a sliding sleeve 17 actuated by a lever 18. A slot 31 in the guide is traversed by an arm connecting the lead screw nut to a saddle 32 having a slide forming a bearing for the boring-bar 5, thrust bearings being provided at 39, 40. The lead screw may also be actuated manually from a hand-wheel 44 through a shaft 42 and gearing 45. The over-arm 46 may carry at its forward end a bracket affording another bearing for the boring-bar.
Patent GB-203512-A (GB)
Title: An improved device for delivering fluids through house doors, partitions or the like
IPC: A47G29/28
Filed: 1923-04-13
Abstract: 203,512. Callander, R. M., and Browne, M. J. April 13, 1923. Receiving devices for doors and the like.-In a device comprising two telescopically-related tubes of which the outer one is fixed to the door, &c., and the inner tube is slidable therein so as to be capable of withdrawal to expose a liquid-receiving aperture, the inner tube 2 is provided with a locking- device which, when set, prevents the inner tube being drawn outwards and then retracted more than once without resetting the lock. The locking-device comprises a spring-controlled latch 7 mounted on a flange 13 secured to the outer tube 1, the latch passing through a segmental slot 17 in a sleeve 8 surrounding the tube 1 and a longitudinal slot 16 in such tube, to engage a socket 9 in the inner tube; tongues 14 on the tube 1 and the flange 13 prevent axial movement of the sleeve which has a cam slot 12 engaging a stud 11 fixed to the inner tube and passing through the slot 16 in the outer tube. The device is set for delivery by slightly turning the sleeve 8 so that a cam 10 thereon engages a shoulder on the latch and raises it clear of the socket 9. The tube 2 is drawn outwards for delivery of milk &c. through the aperture 4 into a receptacle suspended from a hook 6 on the outer tube and subsequent retraction thereof actuates the sleeve 8 and allows the latch 7 to engage the socket 9 and lock the inner tube.
Patent GB-695210-A (GB)
Title: Process for making moulded articles which become acid-resistant on being contacted byan acid
IPC: H01M50/145
Filed: 1950-09-22
Abstract: Moulded articles, e.g. storage batteries, which become acid-resistant on being contacted by acid are made by dispersing a resinous mass comprising catalytically polymerized furfuryl alcohol, or a phenol-formaldehyde or phenol-furfural condensation product or a mixture thereof, polymerized to a stage short of completion and from which the catalyst has been removed or neutralized, e.g. by addition of a neutralizing substance contained in a solvent vehicle which is miscible with the resinous mass, in a moulding composition containing an acid - attackable organic fibrous filler, e.g. cotton linters, and an asphaltic or bituminous binder in an amount sufficient to form a continuum around the filler in the final article and moulding the article without further polymerization taking place during the moulding operation.  The catalysts employed are usually acids or alkalis and they may be removed by destroying them by heat or washing. When the catalysts are destroyed by neutralization in a solvent, the latter, which may be removed by evaporation from the mass prior to moulding, may be acetone, ethyl alcohol or isopropyl alcohol.  Alkaline catalysts may be neutralized with weak organic acids such as oxalic, citric and tartaric acids.  The moulding composition preferably contains mineral matter in addition to organic fibres.  Specification 637,446 is referred to.
Patent GB-278511-A (GB)
Title: Improvements in openers for cotton and other fibres
IPC: D01G9/00
Filed: 1926-09-22
Abstract: 278,511. Jolly, J. Sept. 22, 1926. Openers etc.; feeding openers &c.-In a hopper bale breaker or opener the fibre removed from the inclined lattice B, Fig. 1, by the clearer roll D is passed to a spiked cylinder E co-operating with a spiked lattice g by which a further opening of the material is effected. The spikes e, Fig. 3, of the cylinder E may be mounted on bars or fixed directly on the cylinder. The spiked bars g are connected by links g<1> forming an endless lattice supported on driving-sprockets H' and an adjustable bend K, which may be arranged eccentrically to the cylinder E. The device may be applied to a combined hopper bale breaker and scutcher forming a lap.
Patent GB-388075-A (GB)
Title: Improvements in or relating to manoeuvre signalling devices for road vehicles and the like
IPC: B60Q1/38
Filed: 1931-08-19
Abstract: 388,075. Road-traffic signals on vehicles. BERKELEY, L. E. D., Simla Kennels, Passfield, near Bordon, Hampshire. Aug. 19, 1931, No. 23377. [Classes 40 (i) and 118 (ii).] In order to provide a record of the times when the manoeuvre signals of a motor-vehicle are operated, a chart fixed to a clockdriven disc or drum 10 has marks made thereon by recording needles 13, 14, 15 operated by magnetic coils 16, 17, 18 which are connected with the "left," "right," and "stop" signals 19, 20, 24 and energized by the usual car battery 25. The time when the electric horn is sounded may also be recorded.
Patent GB-355006-A (GB)
Title: Improvements in and relating to systems of electric motor control
IPC: H02P7/34
Filed: 1930-08-06
Abstract: 355,006. Control of D.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Hamilton, C. P. ; 2211, Plaza, Schenectady, New York, U.S.A.) Aug. 6, 1930, No. 23591. Convention date, Aug. 9, 1929. [Class 38 (iii).] Varying electromotive force ; regenerative braking. -The motor 10 of an elevator &c. is operated at lowest speed by supply from a low-voltage generator 12 whose field is excited through reversing switches 31a, 31b or 32a, 32b. For higher speeds, the field of a high voltage generator 11 is excited through reversing switches 19a, 19b or 20a, 20b, and this generator is included in the motor circuit by the closing of switch 15a and opening of switch 15b. Thereafter speed control is effected by excluding resisters 21, 22, 23 from the field of generator 11. Upon opening of the reversing switches for either field circuit, that field is connected in a " suicide " circuit to the associated armature. The switches 15a, 15b are operated automatically upon closure of either switches 19a or 20a, all the other switches being energized according to the position of a manual controller.
Patent GB-705871-A (GB)
Title: Improvements in telegraph-code converters
Inventor: DUUREN HENDRLK CORNELIS ANTHON
IPC: H03M5/00
Filed: 1951-10-10
Abstract: 705,871. Code telegraphy. STAATSBEDRIJF DER POSTERIJEN TELEGRAPHIE EN TELEFONIE. Oct. 10, 1951, No. 23630/51. Class 40 (3) Apparatus for adding to a 5-unit code three further elements in combinations indicating the number of marks (or spaces) comprises three polarized relays A, B, C connected at their lower terminals to tappings of different voltage on potentiometers connected between negative battery and earth and at their upper terminals through equal resistances R10, R11, R12 to signal-responsive contacts 1 ... 5. Relay A is connected in addition over pairs of parallel resistances R13, R14 to the contacts band c of relays B and C. The upper terminals of relays A, B, C thus acquire potentials positive or negative with respect to their lower terminals in accordance with the numbers of resistances connected to negative battery or earth, and additional code elements in accordance with the table at the left-hand bottom corner are sent out over leads VI . . . VIII following the ordinary elements sent out over leads I ... V. For example, for a signal including two marks, relays C will be connected to negative battery over two parallel resistances and to earth over three, producing a potential at its upper terminal more negative than that at its lower terminal and causing the relay to change over its contact c to transmit a space over lead VIII. Relay B has the same potential on its upper terminal but this is positive with respect to its lower terminal and relay B transmits a mark over lead VII. The upper terminal of relay A is connected over two resistances R12 and two R13 to battery and over three resistances R12 and two R14 to earth. This makes the upper terminal slightly positive with respect to the lower and relay A transmits a mark over lead VI. Rectifiers 15 ... 18 prevent excessive current in either direction through relays B, C. The receiving apparatus for responding to the eight transmitted elements and detecting faulty transmission is as described in Specification 651,430.