baber/WOPTO huggingface dataset:
Patent GB-950984-A (GB)
Title: Improvements in or relating to synchronous generator sets
IPC: H02P9/10
Filed: 1961-04-21
Abstract: 950,984. Alternators. MASCHINENFABRIK OERLIKON. April 21, 1961 [May 18, 1960], No. 14587/61. Heading H2A. In a synchronous generator set wherein the generator field winding 2 is connected across and arranged to be fed from an excitation rectifier set 6 connected to the secondary winding 7 of an excitation transformer 5 having two primary windings 8, 4 respectively connected to carry the generator output current and in series with a choke 3 across the generator output voltage, a suppression rectifier set 9 is connected in parallel with but opposition to the excitation rectifier set 6 and via any impedance 11 to the generator output terminals; the frequency response of the impedance 11 is different from that of the choke 3 which passes to the transformer 5 components proportional to the generator output voltage, whereby if the generator rated speed is exceeded the excitation is suppressed, possibly to the extent of cancelling the remanence voltage. As shown, the impedance 11 is a transformer and in modifications it may be supplied via a resistor, or capacitor, or a capacitor and choke in series, the latter embodiment providing suppression at a fixed frequency. The excitation and suppression systems may be single- or multi-phase.
Patent GB-1159867-A (GB)
Title: Analysing Devices for Liquid Samples
IPC: G01N35/10
Filed: 1967-03-31
Abstract: 1,159,867. Blood sampling apparatus. PHILIPS' GLOEILAMPENFABRIKEN N.V. 31 March, 1967 [5 April, 1966], No. 14771/67. Heading A5R [Also in Divisions Bl, G1 and G2] In order to present fluid samples for analysis by colorimetric apparatus, the samples are carried in flexible tubes 1 mounted side by side on a movable belt 2. Filling or emptying of the tubes or movement of samples or reagents within the tubes, is carried out by squeezing the tubes at predetermined positions along their lengths in programmed sequences. Taking of samples The operation of the apparatus is described with reference to the determination of glucose in blood plasma samples. The tubes 1, which are of synthetic resin e.g. silicon rubber, are first arranged on the belt 2, also of synthetic resin, which is mounted between rollers 3 and 4 by means of teeth 5. Blood samples are taken direct into respective tubes from the fingers of different patients using the set-up of Fig. 1. An array of press buttons 7 are pressed in a predetermined sequence, squeezing different portions of a tube against a fixed plate in this sequence, to cause the needle 8 at the end of the tube to penetrate a patient's finger, and blood to rise into the tube 1 by suction. A filter 9 is provided adjacent the needle 8 to filter the plasma and a quantity of anti-coagulant is located in the tube next to the needle. The samples carried by the tubes of a particular belt are then all subjected to the same analysis procedure, in this case for the determination of glucose. Samples for different analyses may be taken simultaneously by locating a number of belts one above the other. The procedure for analysis is described.
Patent GB-780532-A (GB)
Title: Improvements in or relating to focal electrode and filament assemblies for x-ray tubes
IPC: H01J35/06
Filed: 1955-05-23
Abstract: 780,532. X-ray tubes. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. May 23, 1955 [May 25, 1954], No. 14779/55. Class 39(1). A focusing assembly in an X-ray tube comprises an outer cup-shaped member 10 with a slot 11 in its flat end, an inner sheet-metal slotted member 12, and a filament 19 between the two members. The inner member 12 is also cup-shaped, with a slot 13. The filament is attached to leads 20, 23 supported from a metal disc 33, one lead directly and one through insulating means ; alternatively the disc 33 may itself be of insulating material. The disc is bolted to lugs 30 on the inner member 12. The screws 32 allow adjustment of the filament, which can be carried out after flashing and straightening. After suitable adjustment the disc 33 is secured in position. If the filament is to be mounted after the two cups are secured together, additional slots may be provided to allow insertion of a mandrel, Fig. 1 (not shown).
Patent GB-1467760-A (GB)
Title: Rotary drum provided with a device for the lubrication of a bearing ring thereof
IPC: F27D99/00
Filed: 1975-04-11
Abstract: 1467760 Bearing ring lubrication POLYSIUS AG 11 April 1975 [27 May 1974] 14897/75 Heading F2A A rotary drum comprising a bearing ring 1 supported on support plates 3 which are affixed to the drum casing 2 at regular intervals is provided with at least one box 7 which is open towards the inner peripheral surface la of the ring and is disengageably held in at least one gap 6 between adjacent support plates, and a graphite plate inserted in the or each box. The box may be made of sheet metal or a suitable plastic, and may be held fast to the bearing ring by attachment tags, and to the support plates by a leaf spring.
Patent GB-514863-A (GB)
Title: Improvements in or relating to electric protective arrangements
IPC: H02H7/04
Filed: 1938-05-19
Abstract: 514,863. Protective cut out arrangements. FOWLER, E. A., HYMAN, L., and OUGHTON, W. E. May 19, 1938, Nos. 14904 and 14905. [Class 38 (v)] A protective arrangement for installations, such as neon signs supplied by leaky-field transformers, in which a H.T. circuit is fed through a transformer from a L.T. supply, comprises an earthed conductor 10 located in spark-gap 16, 16 connected across the H.T. supply, and a circuitbreaker 3, 4 connected in the L.T. supply and controlled by a trip coil 11 connected at one end to earth and at the other end to a mid-point or intermediate tapping of the secondary winding. The earthed conductor in Figs. 1 and 2 is a twopart link with a soldered joint 19 arranged, when the circuit-breaker 3, 4 is closed, to lie in the gap 16, 16. The insulating rod 5 carrying the contact 4 is guided in a bracket 6 and slotted at 18 to receive a pin 17 on the end of the link 10, and a similar connection is employed at its other end to a bar conductor 12 guided in a bracket 13. The trip coil 11 is adapted to attract an armature 15 on the bar 12, so lifting a notch 14 on the bar clear of a retaining part 13a of the bracket 13, and allowing the spring 7 to open the contact 4. One end of the trip coil 11 and the bar 12 are connected to an earthing terminal 21, and an earth-continuity clamp 23 interconnects the brackets 6, 13. If, when the gap breaks down, the.resulting trip-coil current is insufficient to effect release, the solder 19 is melted and the spring 7 opens the contact 4. The trip coil is energized by the earth-fault current flowing on earth fault in the H.T. circuit even when no excess voltage produces a discharge across the gap. A press - button 9 projecting through an aperture in an earthed metal casing (not shown) is provided for resetting the circuitbreaker. The arrangement may be modified by replacing the fusible link by a metal link carrying one or a pair of earthed U-shaped bimetal strips, the free ends of which are in proximity to the gap-electrodes 16, whereby a discharge causes the free ends of the strips to bend towards the electrodes, so causing sufficient trip-coil current to flow, Fig. 3 (not shown). When two strips are employed, their rates of expansion may be made to differ, so as to prevent simultaneous contact with both electrodes. The bimetal strips and spark gap may be structurally separate from the breaker and its trip coil so that a singlebreaker may control a bank of transformers Fig. 5 (not shown). In this arrangement, a single strip is placed in each spark gap, all the strips being earthed, and the unearthed end of the trip coil is connected to the mid - points of all the secondaries. When this arrangement is employed for neon signs and an emergency arises, it is only necessary to fracture one neon lamp to de-energize the entire H.T. system.
Patent GB-941749-A (GB)
Title: Processes for preparing cycloalkylized 2, 3-dihydro-1, 4-benzthiazines
Filed: 1961-04-25
Abstract: The invention comprises compounds of the general formula: <FORM:0941749/C2/1> (wherein R represents a hydrogen or halogen (e.g. Cl, Br or F) atom or an alkyl or alkoxy group and Z an aliphatic bridge member having 3-6 carbon atoms, but excluding a tetramethylene chain) and their acid addition salts, and the preparation thereof and of the compounds in which Z represents a tetramethylene chain by heating a spiro compound of the general formula: <FORM:0941749/C2/2> (wherein A represents an aliphatic chain having 4-7 carbon atoms). The products are useful as intermediates in the synthesis of medicines.  Benzthiazolines of the second general formula above are prepared by reacting o-aminothiophenols with cyclic ketones.
Patent GB-793287-A (GB)
Title: Responding radar beacons
IPC: G01S13/78
Filed: 1956-05-14
Abstract: 793,287. Transponder apparatus; radar. SVENSKA AKTIEBOLAGET GASACCUMULATOR. May 14, 1956 [May 12, 1955], No. 14927/56. Drawings to Specification. Classes 40 (5) and 40 (7). In a radar beacon system comprising an interrogating station A and a responding station B, the latter employs two transmitters triggered by station A to transmit simultaneously pulses at frequencies within the wavelength band of receiver A, the pulses differing in frequency by the intermediate frequency of the latter. Alternatively the two transmitted pulses may be radiated as sidebands of a single carrier. In another arrangement three transmitters may be used, the frequency differences between which correspond to standard I.F's of interrogating stations. Thus, when the local oscillator is switched off only the responder will be received and shown on the associated indicator at station A.
Patent GB-116634-A (GB)
Title: Self-aligning Stuffing-box for Carrying Pneumatic Transmission Tubes through the Water-tight Plating of Ships at certain Angles or Radii.
Inventor: DANIELS FREDERICK ARTHUR
IPC: F16L5/02
Filed: 1917-10-16
Abstract: 116,634. Daniels, F. A. Oct. 16, 1917. Boxes for carrying pneumatic transmission tubes through the watertight plating of ships are constructed to permit universal movement. The tube passes through a spherical casting a mounted in a base-plate e and provided with a stuffing-box c closed by a divided gland b.
Patent GB-327318-A (GB)
Title: Improvements in or relating to the connection of steering wheels to steering rods
IPC: B62D1/10
Filed: 1929-05-14
Abstract: 327,318. Chance & Co., Ltd., J. R., and Chance, J. R. May 14, 1929. Hand-wheels.-A steering-wheel a for juvenile road vehicles is adapted to be rigidly and permanently connected to a steering rod g by the provision of housing h having extending limbs h<2> by means of which it is rigidly secured by welding, riveting, or the like to the underside of a diametrically arranged spoke c, d. Positive connection is made by means of a pin i<3> parallel to the plane of rotation and arranged diametrically or otherwise with its ends riveted over or cranked. The rim may be of elliptical section with the arms cranked and of similar section welded or brased to the rim, as shown; or a wooden rim may be screwed to the steel spokes; or the wheel may be shaped up from a metal blank with the periphery turned inwardly. In the latter case, the housing may comprise a flanged sleeve. The pin i<3> may be screwthreaded by tapping one or both holes i<2> and countersinking or recessing the walls of the rod g.
Patent GB-982900-A (GB)
Title: A new or improved apparatus for marking hot metal billets and other hot metal bodies
Inventor: SAAR PAUL
IPC: B21C51/00
Filed: 1962-04-18
Abstract: 982,900. Welding by pressure. G. K. N. STEEL CO. Ltd. April 16, 1963 [April 18, 1962], No. 14973/62. Heading B3R. In a machine for welding marking tallies to hot metal billets or the like, a body carrying one or more electrodes is reciprocable towards and away from a billet by an operator located adjacent a part of the body remote from the hot billet, and such reciprocating movement of the body operates a magazine to feed a tally into position for welding. The machine is traversible along rails 13 past the ends 16 of billets 15 lying side-by-side on a cooling bed 14. The body 17 of the machine to which two electrodes 20 are secured is reciprocable on wheels 18 by a handle 64 by an operator who is protected by a transparent or other shield 65. As the body 17 is pushed towards the billet a tally support platform 32 on which a talley is supported in upright position (see Fig. 2) engages the end 16 of a billet 15 and collapses a spring-loaded toggle 35 by which it is connected to the body 17 to allow the electrodes 20 to weld the tally to the billet. The movement of the body 17 relative to the platform 32 causes a link 38 to effect angular movement of an arm 22 pivoted at its lower end to the body 17 and carrying at its upper end a guide shoot 29 and a rotary magazine 24 having slots 25 for receiving the tallies. The arm 22 raises the shoot 29 clear of the electrodes 20 as the electrodes 20 approach the billet. During the return movement of the body 17, the arm 22 pivots to lower the shoot and a spring member 40 actuates a ratchetwheel 46 to cause the magazine 24 to rotate and deliver a tally to the shoot 29. The magazine 24 is removable from its shaft 23 to facilitate loading. Welding current passes between the two electrodes 20.
Patent GB-202438-A (GB)
Title: Improvements in multi-layer electric inductance coils
IPC: H01F17/02
Filed: 1922-05-27
Abstract: 202,438. Thomas, H. L. May 27, 1922. Inductances. - Inductance coils for wireless apparatus comprising superimposed layers of helical turns crossing one another to provide a cellular structure are wound in open or coarse turns leaving large gaps between the crossing points, for example in layers of four turns b - - e, which build up at the crossing points g, and after a number of repetitions the layers are displaced laterally to build up at intermediate points as indicated along turn d. Specification 141,344 is referred to.
Patent GB-1263962-A (GB)
Title: Improvements in polyamide imides
Inventor: HOLUB FRED FRANK
IPC: C08G73/14
Filed: 1969-03-21
Abstract: 1,263,962. Polyamideimides. GENERAL ELECTRIC CO. 21 March, 1969 [8 May, 1968], No. 15054/69. Heading C3R. A polymer consists of recurring units of formula or where p=0 or 1, Q is CH 2 , CMe 2 , CPh 2 , O, S, SO 2 , CO, SiMe 2 , NH or NMe, and the nitrogen atoms are m- or pto Q. The polyamide acid may be prepared by condensing the corresponding diamine with 4-haloformyl phthalic anhydride in an inert solvent, e.g. DMA, below room temperature. An acid acceptor, e.g. pyridine, and another diamine, e.g. bis-(4- aminophenyl)methane, may also be present. The polyamide acid may be cyclized by heat. The product is film-forming.
Patent GB-624195-A (GB)
Title: Improvements in or relating to die piercing and polishing machines
IPC: B23B43/00
Filed: 1947-06-09
Abstract: 624,195. Drilling. RUDKIN & RILEY. Ltd., and TARRY. F. H. June 9. 1947. No. 15125. [Class 83 (iii)] A die piercing and polishing machine having a driven centring chuck 7 mounted on a headstock 4 and a driven collet, for a needle, mounted on a carriage 14 longitudinally adjustable on the machine base 1, is characterized by the upper part 28 of the carriage being swivelly-mounted on a slide 18 adjustable transversely on the lower part 22 of the carriage. The colletspindle 31 is urged towards the work by a spring 38, the pressure being varied by a screw 40 and the feed being limited by a wood-block 42 vertically-adjustable and abutting a bevelled face of a step-pulley 36. The pulley is rotated by belting from a pulley 54 which is moved with the carriage 14 by guides 55 along a shaft 53 which is itself belt-driven by an electric motor which also rotates the headstock spindle. A cam 47 abuts a stop 48, adjustably mounted on the swivelling table 28, and reciprocates the needle to and from the work. A yoke lever 51 withdraws the needle when necessary. The table 28 is mounted on a pivot 25 supported by a screw 27 and a flange 26 on the cross-slide 18 which is adjusted by a screw 23 along the lower slide 22. The carriage 14 is guided along parallel bars 13 by split bosses 15 and is clamped in position by bolts 16. Exact adjustment of the carriage is obtained by closing two half-nuts 57, by a lever 60, upon a screw 56 of fine pitch. The guides 13 and the headstock 4 are bolted to two channels 3 welded to a baseplate 2. Jigs.-To centre the table 28 on the slide 18, a screwed plug 32 is provided and to centre both these members with respect to the work axis a pin P is inserted into coaxial holes bored through the table and the slides 18 and 22.
Patent GB-1020448-A (GB)
Title: Steam power plants
Inventor: CALDWELL JOHN
IPC: F28B9/00
Filed: 1962-04-19
Abstract: 1,020,448. Condensing steam in power plants. ENGLISH ELECTRIC CO. Ltd. April 19, 1963 [April 19, 1962], No. 15190/62. Heading B1B. In a steam turbine plant, the warm water flowing out of direct-contact condenser 19, Fig. 2, passes down pipe 20 into tank 21 and is then transferred by pump 25 through pipe 27 to radiators 11, 12, wherein the water is cooled by air flowing over the radiators; the cooled water is then passed through pipe 29 to a set of sprays 28 in the condenser. The condenser is maintained under vacuum by suction-pipe 23, and the pressure in tank 21 is maintained the same as that in the condenser by pipe 22. The cooled water is driven through pipe 29 by a small hydraulic propellertype turbine 30 which assists electric motor 26 to drive pump 25. In the plant shown in Fig. 1, boiler 18, steam turbine 16, condenser 19 and tank 21 are arranged within a dry cooling tower 10; and there are six circumferential groups of radiators (not shown). The tank 21 has six drain pipes 24 each of which is connected to the suction side of a pump 25, the exhaust side of each pump being connected through a pipe 27 to the inlet manifold pipe 13 of one group of radiators. The outlet manifold pipe 14 of each group of radiators is connected by a pipe 29 to a set of sprays in the condenser. One or more of the radiator groups may be emptied while the turbine is running by shutting off the corresponding pump 25, whereupon the water in radiator 11 and pipe 27 drains into tank 21, while that in radiator 12 and pipe 29 drains to the tank through non- return valve 33 and pipe 27. The tank has a large enough capacity to take all the water in the system, if necessary. A modified system is described wherein the tank is open to the atmosphere.
Patent GB-105205-A (GB)
Title: Improvements in or relating to Means for Removing Deposit from Drains, Pipes and the like.
Inventor: CUTLER HENRY ALBERT
IPC: E03F9/00
Filed: 1916-10-26
Abstract: 105,205. Cutler, H. A. Oct. 26, 1916. Cleaning internally, non-rotary appliances for.-Relates to scraper arrangements for drains, pipes, &c., of the kind in which a blade is hinged to a draw-bar and so arranged that, when moved in one direction, is assumes an inoperative position, and in the other direction it is operative. The scraping-blade d is hinged to a bar c carried by the draw-bar and having a movement relative to it, a link e connecting the blade to the draw-bar so that a relative movement moves the blade in the horizontal or vertical position. As shown, the portion a of the draw-bar is a sleeve adapted to receive the bar c, which is slotted at h to receive a guide-pin j. The drain rod b is coupled to the part a to allow swivelling. Specification 101,492 is referred to.
Patent GB-977977-A (GB)
Title: Tunnel diode electrical circuit
IPC: H03K17/58
Filed: 1961-04-27
Abstract: 977,977. Tunnel diode bi-stable circuits. RADIO CORPORATION OF AMERICA. April 27, 1961 [May 20, 1960], No. 15348/61. Heading H3T. A tunnel diode bi-stable circuit for propagating a signal in one direction only comprises two tunnel diodes having one pair of like electrodes directly connected together and the other pair of like electrodes coupled together by an impedance, the voltage current characteristic of one of the diodes having a lower current peak value than that of the second. As shown in Fig. 1 two tunnel diodes 14, 18 are forward biased by means of a constant current source comprising resistors 26, 28 and voltage source E+ and are connected together by resistor 16, the characteristics of the diodes being as shown by curves 32, 34 respectively, Fig. 2. If the two diodes are initially in their low-voltage states 39, 44 then when an input current greater than #i, Fig. 2, is applied to input terminals 10 diode 14 switches to its high-voltage state 46 and the resultant current i 1  flowing through resistor 12 is sufficient to switch diode 18 to its highvoltage state so that the input signal is propagated from the input terminals 10 to output terminals 20. If both diodes are initially in their low-voltage state then when the voltage across terminals 20 rises, due to one or more tunnel diodes in a logic circuit forming the output circuit changing from a lowto a high-voltage state, current i 2  flowing through resistor 22 and limited thereby causes the operating point of diode 18 to change its position from 44 to 50 on curve 32. As is apparent from Fig. 2 the voltage across diode 18 is now nearly equal to the voltage across diode 14 and the current flowing through resistor 16 is insufficient to switch diode 14 from its lowto high-voltage state and no signal is propagated from the output terminals 20 to the input terminals 10. Reset means may be provided for placing both tunnel diodes in a low-voltage state after each logic operation and may comprise a circuit for applying a negative voltage pulse to each diode or alternatively a pulse source can be used for the supply E + which is positive only during the signal transmission period and returns to ground potential afterwards.
Patent GB-1468871-A (GB)
IPC: D07B7/02
Filed: 1974-04-08
Abstract: 1468871 Stranding machine; stop motion SCHWERMASCHINENBAU - KOMBINAT ERNST THALMANN MAGDEBURG VEB 8 April 1974 [22 June 1973] 15387/74 Heading D1T Apparatus for switching off a rope stranding machine upon movement of a bobbin cradle within a rotor comprises a counter, means for supplying the counter with counting signals dependent upon rotor rotation, two light emitters locatable outside the rotor to pass light beams through windows and apertures in the rotor and the cradle, two light receivers locatable outside the rotor to receive the beams and connected via an OR gate or an AND gate to the counter, to provide reset signals dependent upon light beam interruption by the windows in the rotating rotor, the reset signals resetting the counter to zero until cradle and aperture movement interrupts the light beams so that the counter is allowed to count beyond a given maximum to issue a stop signal via an output OR gate, and a trigger device connected between the output OR gate and the means for supplying the counting signals for providing the output OR gate with a signal upon failure of the means. Counter 3, Fig. 1, is provided with counting signals by transmitter 1 and with reset signals by light receivers 6, 7 via OR gate 5 and bistable flip flop 4. The counter issues a stop signal via output OR gate 9. Trigger device 12 provides gate 9 with a signal upon failure of transmitter 1. Alternatively, Fig. 2, counter 15 is supplied with reset signals by light receivers 6, 6' via AND gate 17 and with counting signals by light receivers 7, 7' via OR gate 18, trigger device 21 being connected between OR gate 18 and output OR gate 19. Counters 13, 14, also connected to OR gate 19, are supplied with counting signals by receivers 6, 6' and with reset signals by receivers 7, 7'. Each light emitter may comprise a bulb, fluorescent tube or a semi-conductor light source.