baber/WOPTO huggingface dataset:
Patent GB-939451-A (GB)
Title: Improvements in or relating to a deflection transformer in, or for, a television receiver
IPC: H01F38/42
Filed: 1962-04-11
Abstract: 939,451. Transformers. PHILIPS ELECTRICAL INDUSTRIES Ltd. April 11, 1962 [April 14, 1961], No. 14007/62. Class 38 (2). [Also in Group XL (c)] A deflection transformer for a television receiver is tuned with the aid of a stray inductance to a harmonic of the flyback oscillation and has an auxiliary winding which is disposed on the core so that it is substantially unaffected by the main flux but in which an oscillation corresponding to the harmonic is induced and used to effect cancellation of the harmonic in the flyback oscillation supplied to a deflector device. Ferrite core 2 (Fig. 1) has primary winding 7, high tension secondary winding 8, auxiliary winding 12 which embraces one side of the rectangular core and windings 7a, 7b (Fig. 2) which are tightly coupled to the primary and which supply deflector coils. The stray leakage inductance between windings 7 and 8 is arranged to resonate with the stray capacitances at both the fundamental flyback frequency and approximately a harmonic thereof. A flyback pulse with superposed harmonic is induced in the windings 7a, 7b while only the harmonic is induced in winding 12 by the stray flux so that when coil 12 is placed in series with coil 76 and the phase and amplitude adjusted, complete cancellation of the harmonic can be obtained in the lead 16 to the deflector device 17. The auxiliary winding may alternatively be connected in series with the primary winding or between a tapping and earth thereby producing cancellation of the harmonic in one winding and amplification in the other. Specification 723,510 is referred to.
Patent GB-641434-A (GB)
Title: Improvements in or relating to apparatus adapted for use in making hollow moulded articles
IPC: B29C49/30
Filed: 1947-05-27
Abstract: 641,434. Moulding hollow articles such as hosiery display forms &c. CORNER, G. H. C., and MILLER LAST CO., Ltd., O. A. May 27, 1947, No. 14026. [Class 87 (ii)] A mould for making hollow articles by expanding a heat softened blank of cellulose acetate, by internal pressure, to the internal shape of the mould, is moved by a conveyer through hot water tank 33 and then through a cold water tank 35. A blank 39 which may be preheated is placed in a two-part mould 3 and the mould parts then clamped together. The mould is attached to the conveyer and immersed in the hot tank. After moving a few feet through the tank the mould is removed and hot water from a tank 37 or directly from a centrifugal pump is supplied, through a flexible pipe H and a fitting 41, to the inside of the blank to expand it. A tap 45 at the bottom of the blank is initially left open to allow the air inside the blank to be expelled. The mould is again moved through the hot tank. At the end of the tank the mould is removed, the pipe H is disconnected and a compressed air pipe A is attached to a pipe 43 at the lower end of the blank. Taps 45 and 49 are opened to allow the water to be blown out of the expanded blank. The tap 49 is then closed, so that the blank is kept expanded during cooling, and the mould inserted in the cold water tank. After being carried a few feet through the tank, the tap 45 is closed and the pipe A removed. The mould is removed at X, the moulded blank removed, and the empty mould rolled down to the starting position S. Specification 527,924 is referred to.
Patent GB-614630-A (GB)
Title: Improvements in lighting fittings for use for example on airfields
IPC: B64F1/20
Filed: 1945-06-04
Abstract: 614,630. Lamps. GENERAL ELECTRIC CO., Ltd., and ADAMS, J. C. June 4, 1945, No. 14029. [Class 75 (iv)] A lighting fitting for an aerodrome runway comprises a casing 1 for a light source 5 having a cover plate 2 of thick glass, and above the cover plate an optical system for deflecting light from the source 5 in the required direction, said system being so constructed as to be easily crushed or easily displaced in the event of an aircraft wheel passing thereover. The optical system may comprise two reflectors 14, of moulded plastic material, which deflect the light into beams concentrated between the horizontal and say 15 deg. above the horizontal and which are mounted in a relatively fragile hollow cover 13 of moulded transparent plastic material. The reflectors 14 may be replaced by a formation of prisms on the inner surface of the cover. The latter is maintained in position by spring clips 112 on a frustoconical member 10 of thin transparent and translucent material which permits the passage of a small amount of light at wide angles in azimuth and elevation and which is detachably secured by clips 11 to a ring 8 clamped by screws to the cover plate 2. Two or more light-sources may be provided in the casing 1.
Patent GB-372103-A (GB)
Title: Improvements in book-markers and leaf-holders
IPC: B42D3/14
Filed: 1931-05-12
Abstract: 372,103. Leaf-holders. SAXON, A., 65, High Street, Shaftesbury Avenue, London. May 12, 1931, No. 14039. [Class 52 (iii).] In book-markers and leaf-holders of the type comprising a clip 2 or other means of attachment to the book-cover, a springy arm 3 secured to the clip, and a leafholding finger 6 extending from the arm, the arm is constructed as a spirally-coiled spring. The arm may be mounted in a tubular part of a plate-like clip, or a bent wire clip, which may be formed integral with the arm, may be used. The leaf-holding finger 6 may be formed out of the last convolution of the springy arm, and may be bent at an angle to the book-cover, so that it is pressed against the pages by the torsion of the spring.
Patent GB-521788-A (GB)
Title: Improvements in signs comprising a plurality of gas or vapour filled tubes electrically excited to luminescence
IPC: G09F13/26
Filed: 1939-05-11
Abstract: 521,788. Signs; electric discharge tubes. GANTNER, F., and SORTER, E. May 11, 1939, No. 14062. Convention date, June 16, 1938. [Class 3 (ii)] [Also in Group XL] A sign constructed with a plurality of gas or vapour filled tubes in the form of sign characters and adapted to become luminescent on electrical excitation has electrodes extending the length of the tubes and arranged spaced apart parallel to one another and outside the gasfilled space, one electrode being applied to the outside of, or enclosed in the material of, the tube and the other applied similarly or separate from the tube. An external electrode may be common to a number of tubes, and the tubes may be interchangeably supported for electrical connection through sockets on a base board, or may hang on busbars, or may be supported by a magnet engaging a bar of magnetic material  fixed to the tube. Fig. 1 shows a tube a of V- form having external electrodes b connected to a terminal b<SP>1</SP> of a socket and electrodes c parallel to the electrodes b and connected to a terminal c<SP>2</SP> of the socket. Fig. 4 shows a tube with one electrode c curved and extended externally to form a reflector. Fig. 6 shows tubes a each carrying one electrode b, the other electrode c being formed by a plate common to several tubes. The Specification as open to inspection under Sect. 91 also describes tubes with electrodes on the interior. This subject-matter does not appear in the Specification as accepted.
Patent GB-1091701-A (GB)
Title: Improvements in and relating to control arrangements for driving units for motor vehicles
IPC: B60W30/18
Filed: 1965-04-02
Abstract: 1,091,701. Change-speed control. ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. April 2, 1965 [April 7, 1964], No. 14096/65. Heading F2D.  A vehicle transmission includes a shiftfacilitating brake 4 with a fluid-pressure actuator 10, 11 controlled by a solenoid valve 23 current to which is supplied by a main circuit 21 including switch contacts 18, 19 operable by the gear shift lever 14 and clutch pedal 15, respectively, the circuit also including a time relay 27 controlled by a contact 28 in a secondary circuit 22 connected between contacts 18, 19 and to a further contact 20 operable by the accelerator pedal 16. During an upshift or engagement of reverse gear, with the gear-lever 14 in neutral, contacts 18, 19 are closed to operate valve 23 and actuator 10, 11 and thus engage brake 4. During a downshift with the gear lever in neutral, operation of valve 23 is prevented by the opening of contact 28 of the time relay 27, the effective period of which is set to exceed the time for a normal gear-shift. The relay cannot operate when a gear is engaged, a cam 31 or other member being incorporated in the gear lever so that contact 18 can only be closed when the lever is in the neutral position.
Patent GB-112472-A (GB)
Title: Improvements in or connected with Bombs or the like for use on Aircraft.
Inventor: TAYLOR ISAAC FRANCIS
IPC: B64D1/04
Filed: 1916-10-04
Abstract: 112,472. Taylor, I. F., and Pick, S. Oct 4, 1916. Winches; driving-gear; brakes stopping automatically at end of run. - A power driven manually controlled winch for trailing a bomb a from aircraft comprises a drum f, which is driven by the motor through gearing l and two clutches i, m. The clutch i is controlled through linkwork n bv a hand lever to connect and disconnect the motor. The clutch m is controlled by another hand lever S<2>, which pivots about a fulcrum S<3> so as to shift the drum f longitudinally; and a brake lever S<1> is provided adjacent the lever S<2>. These two levers enable the drum to be unclutched and the cable to be paid out under control of a band brake S. The clutch m is also controlled by a fork r' to unclutch the drum when the cable is fully wound up and the bomb a brought against a lever r connected to the fork r'. Electric leads are provided along the cable to connect the fuse on the bomb to a battery on the aircraft through a switch worked by hand and another switch worked by the hand lever that controls the motor clutch i. A spring catch e<3> is provided to release the cable c if it is subjected to excessive tension, and a knife v for simultaneously cutting the electric leads. Reference has been directed by the Comptroller to Specifications 6029/09. 1135/10. 16133/13, 17033/13, and 16734/15, [all in Class 9 (ii). Torpedoes &c.].
Patent GB-1037595-A (GB)
Title: Improvements in steam rocket propulsion units
IPC: F02K99/00
Filed: 1965-04-03
Abstract: 1,037,595. Steam rocket propulsion. G. PARTEL, P. LAURIENZO and T. DIAMANTINI. April 3, 1965, No. 14213/65. Heading F1J. [Also in Divisions F3] A steam rocket propulsion unit comprises a boiler containing water or an aqueous solution, a compartment containing at least one chemical which reacts exothermically upon contact with the water or solution, and means for suddenly mixing the chemical or chemicals with the water or solution. The rocket shown in Fig. 2 comprises a cylindrical boiler 1 formed at its lower end with a hemispherical wall la and closed at its upper end by a cover 2. Disposed within the boiler 1 is a container 26 which is closed at its lower end by a pair of diaphragms 27, 27a in the space 28 between which is an explosive charge which may be exploded so as to burst the diaphragms by passing an electric current to the devices 29. The lower end of the unit has a propulsion nozzle 8 secured thereto by the screwed collar 7. The nozzle is normally closed by means of a frusto-conical plug 9 which is sealed so as to prevent leakage of water contained within the boiler 1. The plug is retained in its sealing position by means of a rod 11 in screwed engagement with a plate 12, the plate being retained by means of a pair of semi-circular plates 14 (Fig. 3, not shown). The plates 14 are held together by means of removable pins 23 also by a pair of springs which tend to force the plates apart. The pins 23 may be removed so as to remove the plug 9 by means of explosive charges 25 contained in holders 24. The gases generated upon firing the charges force the pins 23 out of the plates 14. The boiler 1 is filled with water and the container 26 with a substance which will react with water to produce steam. At firing the charge 31 is fired to burst the diaphragms 27a, 27 whereupon the substance in container 26 passes into the water. When sufficient pressure has developed in the boiler the charges 24 are fired whereby the plug 9 is expelled from the nozzle and the steam issues through the nozzle as a propulsive jet. Examples of the suitable chemical substances are given, among them sulphuric acid, sulphuric acid plus sulphur trioxide, sodium, magnesium; sulphuric acid plus sulphur trioxide may be discharged into a solution of water in ammonia.
Patent GB-1459564-A (GB)
Title: Alkylphenyl benzopyrans
IPC: C07D213/50
Filed: 1974-04-01
Abstract: 1459564 Derivatives of dibenzopyran and cyclopentabenzopyran ABBOTT LABORATORIES 1 April 1974 [2 April 1973 13 Feb 1974] 14404/74 Heading C2C The invention comprises compounds of formulµ and the pharmaceutically acceptable salts of (I), (II) and (III), wherein n is 1 or 2; R and R 1  are each H or C 1-6  alkyl [but in the pyrone compound (XIII), H or Me]; R 2  is C 1-6  alkyl; Y is C 1-10  alkylene; R 4 , R 5 , R 6  are each H, halogen, CF 3  or C 1-6  alkyl; and Z is C or N. In examples, (XIII) are prepared by reacting an ethyl cyclopentanone (or cyclohexanone)-2-carboxylate with an appropriate 5-aralkylresorcinol (A), and converted into (I) and (II) by reaction with R 2 MgBr, followed optionally by hydrogenation to give (III). Starting materials prepared are the dimethyl ethers of (A), the benzene compounds where Q is CH : CHCO 2 H, CH 2 CH 2 CO 2 H, (CH 2 ) 3 OH, (CH 2 ) 3 Br, (CH 2 ) 5 OH and (CH 2 ) 3 Br, and the compounds 3,5-(MeO) 2 C 6 H 3 CR<SP>0</SP>R<SP>0</SP>- alkylene-Ar where CR<SP>0</SP>R<SP>0</SP> is CO or one R‹ is Me and the other is OH, and Ar is R 4 R 5 R 6 C 5 HZ-. Therapeutic compositions for oral, parenteral or rectal administration comprise the above compounds (Ia), which are analgesics, mild tranquillizers and antidiarrhoeals.
Patent GB-254477-A (GB)
Title: An improved rail for curtains, valances and the like
IPC: A47H1/02
Filed: 1925-06-02
Abstract: 254,477. Johnson, R. C. June 2, 1925. Curtains, suspending.-A rail a for supporting fixed curtains, valances &c. is formed with a number of slots b, preferably of a horse-shoe shape, to provide upstanding tongues c to receive loops, rings &c. on the curtain &c. The tongues may be dished at the back and pressed out from the plane of the rail, which is preferably constructed of thin pliable metal so as to be rolled into a coil for storage &c.
Patent GB-917684-A (GB)
Title: Improvements in vibrators for screens and the like
Inventor: HOWDEN JOSEPH REGINALD
IPC: H02K33/02
Filed: 1960-04-25
Abstract: 917,684. Oscillating motors. HAYWARD, T. W. April 25, 1960, No. 14457/60. Class 35. An electromagnetic screen vibrator comprises a polyphase magnet assembly 1 and a resiliently supported armature 6 to which an eccentric circular motion is imparted. The supports consist of rubber, annular, members, V-shaped in longitudinal section, secured to the ends of the magnet assembly and the armature and their thickness or position may be varied to compensate for the weight of the supported parts. The electromagnet cores 3 and the armature 6 are frusto-conical at their opposed surfaces so that relative longitudinal movement, e.g. by fitting shims, adjusts the air gap between them. Energizing coils 4 are connected to polyphase A.C., half-wave rectified. The armature has cooling fins 8 and is connected to a screen, not shown, and has a lower inertia than that of the magnet assembly; its inertia may be further reduced by making it of light construction with armature inserts opposite the cores 3 only. Alternative arrangements are mentioned in which the electromagnets surround the armature, the screen being attached to whichever part has the lower inertia.
Patent GB-1577713-A (GB)
Title: Printed circuit boards
IPC: H05K3/34
Filed: 1978-04-13
Abstract: This circuit board is intended to allow the electrically conductive transverse connection between the two wiring layers to be produced more simply and cheaply. To this end, the first wiring layer (3), an insulating adhesive layer (5) and the second wiring layer (9) are arranged successively on an insulating carrier material (1). A hole which passes through the second wiring layer (9) and the adhesive layer (5) is provided at the point of a transverse connection. The edge region of this hole is connected by means of a metal coating (12) to the region of the first wiring layer (3) which is exposed within the hole opening. The metal coating is formed by a solder or by an electroplated end surface. (11) designates a connecting pin. <IMAGE>
Patent GB-406522-A (GB)
Title: Improvements in boxes for use in bright annealing
IPC: C21D9/00
Filed: 1933-05-19
Abstract: 406,522. Annealing-boxes. ALLMANNA SVENSKA ELEKTRISKA AKTLEBOLAGET, Vasteras, Sweden. May 19, 1933, No. 14550. Convention date, May 20, 1932. [Class 72.] The top lid of a box in which annealing is effected in gas or a vacuum, is sealed by a packing 9 of an organic elastic material, such as rubber, which is kept cool by a cooling-medium contained within, or circulated through enclosed channels 6, adjacent the joint. As shown the groove for the packing, and the channel 6 are formed in a fitting 4 carried by the annealing-box and provided with cooling- fins 10. An annular reservoir 16 connected to the channel contains sufficient water to cool the packing during the period of cooling of the charge in the box, so that supply and discharge piping is needed only at the furnace. The groove and cooling-channel may be formed on the lid, and rubber impregnated metal gauge may be used as packing material.
Patent GB-1067062-A (GB)
Title: Tunnel diode controlled circuit-breakers
IPC: H03K7/08
Filed: 1964-04-08
Abstract: 1,067,062. Transistor switching circuits. REGIE NATIONALE DES USINES RENAULT. April 8, 1964 [April 10, 1963], No. 14577/64. Heading H3T. [Also in Divisions F2 and H2] A protective arrangement comprises a tunnel diode 7, a transistor 9 having its control path, e.g. its base-emitter junction connected across the diode, a resistor 6 or other load sensing means and a circuit interrupting device 1 controlled by the transistor for cutting off the protected apparatus 4. Initially the current i 3 , i 1  flowing from a source 3 through a resistor 12 and the diode 7 is low and the voltage across the diode is insufficient to bias the transistor to conduction. When the current I through the load 4 and the resistor 6 becomes excessive, the voltage across the resistor 6 causes additional current i 2  to flow through the diode 7 causing the diode to pass from its low voltage condition to its higher voltage condition so biasing the transistor 9 to conduction and causing operation of the device 1. After the current through the load 4 and resistor 6 has been interrupted, the current i 3  through the resistor 12 is sufficient to maintain the voltage across the diode 7 such that the transistor 9 remains conducting. Interconnection between the diode 7 and resistor 6 may be effected by a resistor, or a diode 13 which may be a back tunnel diode. The circuitinterrupting device 1 may be an electromagnetic relay, a vacuum tube, a two-junction transistor or a silicon controlled rectifier. By providing a series-connected resistor and a Zener diode in parallel with the resistor 12, the arrangement may respond to over-voltage conditions, Fig. 4 (not shown). The load 4 may be the coil of an electric clutch of a motor vehicle with the device 1 being a transistorized control system which is rendered inoperative when the transistor 9 becomes conducting, Fig. 5 (not shown).
Patent GB-560910-A (GB)
Title: Improvements in steam generators
IPC: F22B27/02
Filed: 1942-10-19
Abstract: 560,910. Water-tube boilers. LEWIS, M. H. Oct. 19, 1942, No. 14621. [Class 123 (ii)] [Also in Group XII] In a coiled-tube steam generator, a stack of incomplete ring tubes 14 are connected to headers 15 spaced apart to accommodate a fuel shoot 23 down which fuel is fed by gravity to an inclined water-tube grate 6. Feedwater passes upwardly through a coil 29, downwardly through a coil 32 and then upwardly through a coil 33, from which it is led by a pipe 35 to the lower header of the grate. The water passes from the upper grate header through a pipe 36 to the incomplete ring tubes 14, through which it flows to-and-fro in an upward direction and then into the main steam generating coils 24. The steam is superheated in coils 25. The hot gases pass upwardly and downwardly between the tube coils to an outlet 38. The incomplete ring tubes may be connected to headers spaced to provide openings for the supply of fuel from hoppers on opposite sides to a grate with inclined sides. The supply of fuel is controlled by a sliding grid 47 at the bottom of a hopper.
Patent GB-225508-A (GB)
Title: Device for measuring the voltage, load and work on the high voltage side of high-tension plants
IPC: G01R15/14
Filed: 1924-06-17
Abstract: 225,508. Sachsenwerk, Licht-und Kraft-Akt.-Ges. Nov. 30, 1923, [Convention date]. Pressure meters; power meters; energy meters; power factors, measuring.-The voltage coils of meters m<1>, m<2>, m<3> used in a system wherein hightension current is transformed to low-tension current, are connected to the secondary winding of a voltage transformer t<2> placed across the lowtension circuit. In series with the secondary winding, t<2> is the secondary winding of a current transformer t' placed in the high-tension circuit, and shunted bv an inductive load b so designed as to compensate for the voltage loss in the main transformer T, and allow the meters to give readings corresponding to the voltage of the high-tension circuit. The current coils of meters may also be supplied by transformers on the lowtension circuit, if the no-load losses are separately determined by a time-meter. 'When a number of parallel main transformers are employed, only the voltage of one is determined. If the main transformer is arranged in star-delta connection, the voltage transformer is connected delta-star fashion. According to the Specification as open to inspection under Sect. 91 (3) (a), the compensation transformer may be arranged in the low-voltage circuit, and the magnetizing current may be allowed for by adding a few windings to the lowvolt side of the voltage transformer. This subject-matter does not appear in the Specification as accepted.
Patent GB-903803-A (GB)
Title: Method and means for starting of self-sustaining chemical reactions
Inventor: DELANGE MAURICE
IPC: B01J19/00
Filed: 1959-04-30
Abstract: Self-sustaining chemical reactions, e.g. the thermit process and the extraction of metallic uranium from uranium tetrafluoride, are initiated by igniting a portion of the reaction mixture at a distance from the main body of said mixture and projecting said portion into said main body of reaction mixture.  A quantity of a peroxide of an alkali metal or alkaline earth metal may be added to the portion of reaction mixture.  The apparatus may comprise a cartridge (1) mounted on a wall (17) of the reaction vessel and a striker (9) also mounted on said wall and adapted to strike a percussion cap (2) of the cartridge which contains a portion (3) of the reaction mixture.  The <PICT:0903803/III/1> <PICT:0903803/III/2> numerals refer to Figs. 1 and 2, in which the main body of reaction mixture is confined in a crucible 16 within a furnace 17 which can be exhausted through line 18 and to which argon can be admitted through line 19.  A deflector 21 is provided to prevent material splashing into the space between the crucible and the bell.  The initiating device is mounted on a tube 6 leading into the reactor and comprises a support 4 for the cartridge case and a support 5 for the percussion mechanism fixed to said tube by means of cap nut 7.  The striker 9 is loaded by means of spring 11 and held in the cocked position by means of spring loaded pin 12 which engages in a recess in said striker.
Patent GB-852463-A (GB)
Title: Improvements in or relating to devices for laterally displacing crop lying on the ground
IPC: A01D78/00
Filed: 1956-12-27
Abstract: The subject-matter of this Specification is the same as that of Specification 852,462 but the claims differ.