baber/WOPTO huggingface dataset:
Patent GB-376199-A (GB)
Title: Improvements in or relating to x-ray installations for making short-exposure radiographs
IPC: H05G1/24
Filed: 1932-02-09
Abstract: 376,199. R÷ntgen-ray apparatus ; spark-gap apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. Feb. 9, 1932, No. 3846. Convention date, Feb. 14, 1931. [Classes 39 (i) and 40 (v).] In installations comprising a condenser discharged through an X-ray tube to produce a short exposure, one of the two operations of switching off the charging current of the condenser and causing the discharge through the tube is accompanied by the other, feeding of the tube from the charging circuit after the discharge being thus avoided. The condenser 1, Fig. 1, may be charged through a resistance 11, a transformer 2 and a rectifier 3 and discharged through an inductance 12 and the X- ray tube 7. A switch 10 in its upper position supplies heating current to the cathode of the rectifier 3 to charge the condenser and in its lower position breaks this supply to stop the charging and supplies the cathode of the tube 7 to produce the discharge. In modifications, an electromagnetic or thermal relay controls the discharge circuit. The exciting coil of the relay may be in parallel to or in series with the cathode of the rectifier 3, or the switch 10 in its lower position may energize the relay. In Fig. 4, closure of a switch 20 heats the cathode of the rectifier 3 and energizes a coil 15. When the switch 20 is opened, a pin 15<1> in the coil 15 drops and reduces the gap between ball or other electrodes 18, 19 to allow the condenser 1 to discharge through the tube 7. A time-lag relay 21 opens the heating circuit of the tube 7 after the discharge. The switch 20 may control only the transformer 16, the relay 21 being omitted and the cathode of the tube 7 continuously supplied with current. The extinction of the glow in a discharge tube 23 across a resistance 22 in the charging circuit may be used to indicate that the condenser 1 is sufficiently charged. Lighting of the tube 23 due to the alternating current flowing in the circuit on account of the capacity of the rectifier 3 may be prevented by a condenser 24 across the tube 23.
Patent GB-929059-A (GB)
Title: Improvements relating to driving and control mechanisms for power-operated machine tools
IPC: F15B21/08
Filed: 1961-02-01
Abstract: 929,059. Machine tool details. R. C. CLERK. Feb. 28, 1962 [Feb. 1, 1961], No. 3852/61. Class 83 (3). A driving and control mechanism for power - operated machine tools having a slide or work-table operated by means of an hydraulic cylinder comprises hydraulic fluid on one side of the piston in the cylinder for moving the slide in the non-working direction and an enclosed volume of gas on the other side for effecting slide movement in a working direction. Slide 3 is connected to a piston-rod 1 in a cylinder 2, air is supplied to the cylinder from an air receiver 4 connected to a compressor 4a, and hydraulic fluid is supplied to the other end of the cylinder by a motor-driven pump 6 via a valve 20, and a non-return valve 25. A back pressure control shuttle valve 5 has a shuttle 7 having an aperture 9 which can be aligned with a port 10, and reduced diameter ends 11, 14 of the shuttle are connected to the hydraulic fluid, and the air, respectively. In operation, with port 10 closed by shuttle 7, pump 6 supplies fluid to oil space 13, and slide 3 is moved to the right, Fig. 1, against the air pressure. The slide contacts a switch 22, which cuts out pump 6, the air pressure on the end 14 of shuttle 7 is relieved, and the oil pressure on end 11 moves the shuttle to open port 10. Slide 3 is moved quickly to the left, controlled by a speed control valve 16, and the oil is discharged through a pipe 26 to a reservoir 23. A projection 19 engages a switch 18 which actuates a stroke limit control valve 17, to apply full air pressure to end 14, tending to close shuttle 7, against the rising back pressure acting on end 11, and retard the slide. The slide is cushioned due to a restriction 24 in the oil line. Shuttle 7 may be controlled by hydraulic pressure derived from a pump, or if air is used, this may be supplied by a separate pump.
Patent GB-592057-A (GB)
Title: Improvements in comber boards for looms
IPC: D03C3/38
Filed: 1945-02-15
Abstract: 592,057. Loom comber-boards. BERG, G. Feb. 15, 1945, No. 3885. [Class 142 (i)] A loom comber-board comprises a series of juxtaposed cross pieces each of which cooperates with another to provide a row of cord guides, and a frame holding the ends of the cross pieces. In the form shown, the cross pieces comprises members 20 formed with grooves 22 and intervening distance pieces 21, the ends of the cross pieces being slidably held in channelled frame members 26, 26A, the member 26A consisting of a number of sections detachably secured together to permit ready insertion and removal of cross pieces. Adjustable means including a slidable cross bar 30 and a spring 31 are provided at one or both ends of the series of cross pieces to press the latter together. The distance pieces 21 may be dispensed with, and the members 20 may each be formed with grooves on both side faces. In a modification, one of the channelled frame members is provided with a hinged upper flap.
Patent GB-900842-A (GB)
Title: Improvements in and relating to the production of buffer heads
Inventor: ONIONS JOHN HENRY
IPC: B61G11/18
Filed: 1960-02-03
Abstract: 900,842. Forging buffer heads. OPEE Ltd. Feb. 3, 1961 [Feb. 3, 1960], No. 3894/60. Classes 83 (2) and 83 (4). Fig. 1. A buffer head 12 with an alloy steel insert 7 embedded therein is made by forging a billet 6 and incorporating the insert 7 by and during the forging. The buffer head is made by forging a billet between dies 1, 2 which initially form a recess 4. An insert 7 of manganese or other alloy steel is located in the recess and the dies 1, 2 are then closed to forge the head and press the insert therein. The insert may alternatively have rounded or recessed edges. In another embodiment, Fig. 2 (not shown), the upper die makes an annular depression in the workpiece to locate the insert. In a further embodiment, Fig. 3 (not shown), the billet is initially pre-forged between dies, then an annular depression is formed by separate dies for locating the insert and finally the workpiece and insert and finish forged between the first set of dies. In another embodiment, Fig. 4 (not shown), the upper die forms a central projection on the workpiece which projection may be removed subsequently. Specifications 703,855, 721,222 and 808,931 are referred to.
Patent GB-578471-A (GB)
Title: Improvements relating to electric cable systems
IPC: H02G15/26
Filed: 1945-02-16
Abstract: 578,471. Cables &c. OKONITECALLENDER CABLE CO., Inc. Feb. 16, 1945, No. 3996. Convention date, May 16, 1944. [Class 36] In a sealed electric cable system 4 filled with insulating fluid 24, such as ordinary cable oil at a pressure of about 200 pounds per square inch, the pressure in the system is kept substantially constant, by an expansible and contractible bellows 8 in communication with the cable system and a tank 6 enclosing the bellows 8 and connected to a second tank 12 through an automatically operating pump 16, a pipe connection 20 with a relief valve 22 being provided between the pump on its delivery side and the second tank 12. On the heating cycle of the cable, the fluid 24 expands the bellows 8, which may be of metal, forcing some of the fluid from the tank 6 back to the tank 12, the relief valve 22 being set at slightly over 200 pounds per square inch to maintain the pressure on the insulating fluid 24. On the cooling cycle, the bellows 8 contracts and a pressure switch 26 starts the pump 16, which may be provided with a check valve 18, to force fluid from the tank 12 into the tank 6 until the pressure is normal again.
Patent GB-818705-A (GB)
Title: Improvements relating to fluid control valves
Inventor: BURROWS GODFREY
IPC: F16K31/06
Filed: 1956-03-27
Abstract: 818,705. Solenoid-operated valves. METROPOLITAN-VICKERS ELECTRICAL CO. Ltd. March 15, 1957 [March 27, 1956], No. 4000/59. Divided out of 818,703, [Group III]. Class 135. A solenoid-operated valve, especially for use with vapour phase chromatographic apparatus, as described in the parent Specification, comprises a casing 26 provided with in-line inlet and outlet ports 27, 28, and two further ports 29, 30, axially spaced apart and disposed in a plane transverse to that containing the ports 27, 28, these further ports being connected to the inlet and outlet sides of a fraction collector. The valve plunger 31 is formed with a passage 35 which, when the solenoid 33 is de-energized, provides direct communication between the ports 27, 28, and with two further passages 36, 37 so arranged that when the solenoid is energized, and the plunger in the position shown, inlet port 27 communicates with port 29 through passage 36, and port 30 with outlet port 28 through passage 37. When the solenoid is de-energized registry of passage 35 with ports 27, 28 is ensured by the engagement of a projection 38 at the lower end of the plunger 31 with a guide slot 39 in the valve casing. The plunger 31 may be made of brass and attached to a soft-iron armature 32, while the plunger and casing may be of circular or non-circular cross-section.
Patent GB-621287-A (GB)
Title: Improvements in or relating to engine starter drives
IPC: F02N15/06
Filed: 1947-02-13
Abstract: 621,287. Turning-gear. BENDIX AVIATION CORPORATION. Feb. 13, 1947, No. 4184. Convention date, Feb. 25, 1946. Addition to 612,156. Drawings to Specification. [Class 7 (v)] In an engine starter drive comprising a pinion slidably journalled on a power shaft and connected by means of a yielding driving-connection to a control nut threaded on a screw shaft slidably journalled on the power shaft and operatively connected to a drive head fixed on the power shaft, there is provided both a disconnected torque transmitting connection between the drive head and the screw shaft and a casing fixed to the pinion and providing an abutment adapted to engage the drive head and thereby limit the engaging movement of the pinions. The mechanism described is the same as that described in the parent Specification except that a clutch is interposed between the drive head and the screw shaft. The mechanism is shown applied to both " inboard " and " outboard " starter drives.
Patent GB-124041-A (GB)
Title: Improvements in and relating to Electrical Contact Making and Breaking Apparatus.
IPC: H01H36/00
Filed: 1918-03-12
Abstract: 124,041. British Thomson - Houston Co., and Young, A. P. March 12, 1918. Interrupters. - A contact d for making and breaking a circuit with the fixed contact e is attached to an armature b mounted on a spring c in proximity to the poles of a magnet a. A spindle g carries a number of armatures f, and as the spindle is rotated each armature f shunts the flux passing through the armature b, and the spring c moves the contact to close the circuit. The armature b is again attracted to break the circuit as the armatures f leave the poles. The armature b may be integral with the usual interrupter bellcrank lever, and a reciprocating armature f may be used. A spring h may engage the armature b to assist the spring c. The pole pieces of the magnet a may be arranged so that their inner ends are closer together than their outer ends.
Patent GB-109015-A (GB)
Title: Resetting Device for Sound Reproducing Machines.
Inventor: AHEARN THOMAS
IPC: G11B3/095
Filed: 1917-03-26
Abstract: 109,015. Ahearn, T. March 26, 1917. Clockwork actuation.-A switch 46, 47 is closed after a predetermined interval by a clockwork mechanism 38 geared to a toothed sector 43 carrying the movable contact 46. As the circuit is closed a magnet 45 is energized and attracts its armature 44, upon which the sector 43 is pivotally mounted. The gearing is thus disengaged, and the sector falls back to starting-position, whereupon it is re-engaged by an elastic cord or spring.
Patent GB-307340-A (GB)
Title: Relay-& selector arrangement in telephone installations
IPC: H04Q1/08
Filed: 1929-02-09
Abstract: 307,340. Merk, F., (Assignee of Telefonund Telegraphenbau-Ges.). March 5, 1928, [Convention date]. Drawings to Specification. Automatic exchange selectors. - In exchanges fitted with multiple-jack panels the relays controlling the action of the selectors are mounted in groups on both sides of a frame in serial order corresponding to the disposition of the selectors. The groups of relays are in single line sets and the sets on the two sides of the frames are staggered to allow the rearwardly projecting parts of the sets on both sides of the frame to be adjacent. The frames on which the sets are mounted are hinged to allow of easy access to the connection. The sets and selectors may be mounted on the same or on separate frames.
Patent GB-912808-A (GB)
Title: Improvements in tube flash apparatus for photographic purposes
IPC: H05B41/34
Filed: 1959-02-09
Abstract: 912,808. Charging and discharging capacitors. MULTIBLITZ-GERATE Dr. ING. D. A. MANNESMANN GES. FUR. Feb. 9, 1959 [Feb. 8, 1958], No. 4384/59. Class 38 (4). In a photographic flash-lamp circuit in which a weak periodic flash for focusing is produced in addition to the main single flash, the main storage capacitor 5 is charged through a resistor 4 and voltage stabilizer 3 from a compensating capacitor 2, from which is tapped the supply to a flashing capacitor 7 through a resistor 6. The capacitor 2 compensates for fluctuations in load produced by the continuous flashes. The supply is derived from A.C. mains through a transformer and rectifier unit 1. A switch 8 connected to the lamp 9 selects the type of illumination required. The capacitor 5 is preferably 100 times the size of the capacitor 2, which is preferably about twice the capacity of the capacitor 7. Specifications 912,807 and 912,809 are referred to.
Patent GB-1359161-A (GB)
Title: Liquid level detecting apparatus
IPC: G01F17/00
Filed: 1971-02-10
Abstract: 1359161 Liquid level indicators JAMES A JOBLING & CO Ltd and D OBERSBY 4 Feb 1972 [10 Feb 1971 8 July 1971] 4391/71 and 32198/71 Heading G1H In a method of detecting the level of a liquid in a vessel 11 a pencil beam of infrared light is directed from a source 30 across tubes 13 or 14 in devices D1, D2 towards photo-diodes 32 and depending on whether liquid is present or not in the devices an electrical circuit either opens or closes a valve 24, to admit or stop liquid flow to the vessel 11, or open or close a valve 25 to permit or stop liquid flow to a calibration vessel 23. In one arrangement, Figs. 5-9, (not shown), the method is used in conjunction with a device for marking the vessel to be calibrated. In a further embodiment, Figs. 10-13, (not shown), the method is used in conjuction with a moving belt to automatically calibrate vessels.
Patent GB-265014-A (GB)
Title: Improvements in and relating to piano and like keys
IPC: G10C3/16
Filed: 1926-02-16
Abstract: 265,014. Davies, E. K. Feb. 16, 1926. Pianoforte keys. - The dolly 1 is made of lead or other suitable metal and serves as a counterweight for the key in lieu of the usual lead weights. Sets containing dollies of different weights are provided, their lengths or diameters or both being varied. A dolly may be cast round its screwed wire 2, or on a screw thread of slightly less size to ensure a tight fit, or the dolly may receive a bush or plug 1<b> of fibre, soft metal, papiermache, leather, Bakelite, wood, &c. The dolly may have tommy-holes, or may be made poly. gonal &c. to facilitate manipulation. The upper end 1<c> may be rounded, or recessed to receive a pad held by a flange or tongues. Deep grooves may be formed on the dolly by which pieces may be broken off for fine adjustment of the counterpoise.
Patent GB-940783-A (GB)
Title: Process and apparatus for the continuous treatment of webs of loose fibres and materials of a fibrous nature
IPC: D06B9/00
Filed: 1960-02-08
Abstract: Apparatus for the continuous treatment of webs of loose fibres or materials of a fibrous nature comprises means for conveying the material through a bath of organic solvent, means for imparting high frequency vibration to the organic solvent, means for spraying the material with solvent over a container, means for applying suction or pressure to the material to partially remove the solvent, and means for impinging hot air on to the material to remove the remainder of the solvent.  Subsequent to removing the solvent, the material may be further treated as for example by heating, sizing, drying or finishing the material and dressing the material with a synthetic resin or other impregnating medium and if desired, cutting, printing, backing or lining the web.  Loose fibres such as animal or vegetable fibres or materials of a fibrous nature such as cellulose, leather or wood may be conveyed between two superposed permeable bands e.g. of wire gauze.  The organic solvent may be trichlorethylene, or perchlorethylene used either as a hot or cold bath.  High frequency vibrations in the bath may be caused by ultrasonic transducers, quartz (piezoelectric) transmitters, and magneto-strictive transmitters. The bath may contain treating materials dissolved in the organic solvent e.g. polymers of synthetic materials, synthetic resins, chlorinated rubber, finishing or dressing materials, silicone rubber, and media for combating bacteria, insects or rotting. When solvent is removed from the web or fibres by suction, there may be provided a suction opening formed by overlapping surfaces of adjustable width, the width of the opening in relation to the width of the web being controlled by use of a photoelectric cell.
Patent GB-639596-A (GB)
Title: Improvements in aeroplanes having swept-back wings
Inventor: HILL GEOFFREY TERENCE ROLAND
IPC: B64C3/10
Filed: 1948-02-16
Abstract: 639,596. Aeroplane wing structures. SHORT BROS., and HARLAND, Ltd. Feb. 16, 1948, No. 4466. [Class 4] An aeroplane with swept-back wings 11 incorporating all-moving wing-tips or controllers 12, as described in Specification 249,572, [Class 4], has the wing structure so constructed that, when flexed upwardly under load, it automatically assumes a positive twist of such character that the local incidence at each spanwise station remains unaltered. The combined torsional rigidity of the spar and skin is such that at each spanwise station the degree of torsion at that point in relation ot the upward deflection under load maintains a constant angle of incidence. In the case of a box-spar, with the material for resisting flexure concentrated in two flanges lying at the upper and lower wing surfaces respectively, and the box portion for resisting torsion situated to the rear of the flanges, the skin thickness decreases approximately linearly from root to tip, Fig. 1 (not shown). In cases where such a construction would involve an impracticably thin skin, the angle of sweepback of the wing H may be reduced from root to tip, as shown in Fig. 5. If apertures are made in the skin, to permit access of a retractable landing wheel, for example, the ideal relationship between the torsional and flexural stiffness need not be maintained at every spanwise station, provided the pitching moment of the complete wing remains unaltered by the distortion under load.
Patent GB-100904-A (GB)
Title: Improvements in Driving Gear for Locomotives.
Inventor: DAVIS MATTHEW LIVINGSTON
IPC: B61C9/06
Filed: 1916-03-29
Abstract: 100,904. Davis, M. L. March 29, 1916. Driving-gear of crank type, arrangement of.- Driving-gears for locomotives are formed with internal teeth 19 with which mesh pinions 4 - - 7 carried by a spider 3 and driven by a wheel 14 operated by the crank 16. The spider 3 is prevented from rotating by being bolted to bars 2, Fig. 1, which are hinged together between the wheels. In order that the parts may work in oil, a covering-member is provided which comprises two semi-annular plates 24, 25 connected together by overlapping strips 26.
Patent GB-266371-A (GB)
Title: A burner for gasified liquid fuel
IPC: F23D11/44
Filed: 1927-02-18
Abstract: 266,371. Lacoma Hermanos. Feb. 18, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Vaporizing-apparatus; atmospheric vapour burners.-In a liquid fuel burning apparatus in which the fuel vaporized in a chamber 5 is passed through a pipe 13 to Bunsen burners 14, 15 arranged below the chamber, the excess fuel is conducted by a pipe 6 to a second chamber 7 from which it may be returned through a pipe 8 to the liquid fuel supply pipe 3. The pipe 3 is fitted with stop valves 12, 16 and is connected to a drain cock 11. The fuel reservoir 1 is fitted with an air pump 2, a manometer 4, a cock 17, and a filling funnel 18. The fuel in the chamber 5 is vaporized initially by burning fuel in an open tray 19. After combustion has started, excessive heating may be prevented by passing water from a tank 20 through the tray 19.
Patent GB-833219-A (GB)
Title: Improvements in or relating to electrical power distribution apparatus
IPC: H02B1/056
Filed: 1956-02-15
Abstract: 833,219. Switchboards. SQUARE D CO. Feb. 15, 1956 [Feb. 16, 1955], No. 4689/56. Drawings to Specification. Class 38 (5). In a switchboard such as that of Specification 793,885, the fitting of a circuit-breaker of higher rating in place of one of a lower rating can only be effected after the removal of a part which would otherwise prevent the fitting of the circuit-breaker of higher rating. In one arrangement, each part is a readily removable projecting end of an insulating barrier and in other arrangements each part is an easily removable portion of a fixed terminal conductor.
Patent GB-1221331-A (GB)
Title: Arterial blood pressure measuring instrument
Inventor: EMAN ALEXANDR ALEXANDROVICH
IPC: A61B5/022
Filed: 1968-01-30
Abstract: 1,221,331. Measuring blood pressure. SAMOSTOYATELNOE KONSTRUKTORSKOE TEKHNOLOGICHESKOE BJURO BIOLOGICHESKOGO I FIZICHESKOGO PRIBOROSTROENIA MINISTERSTVA ZDRAVOOKHRANENIA SSSR. 30 Jan., 1968, No. 4698/68. Heading A5K. [Also in Division Gl] A blood pressure measuring instrument comprises a chamber 2 divided by a diaphragm 4 into two compartments 29, 30 both of which communicate with an inflatable collar 1 so that the diaphragm 4 which is connected to a recording device moves in response to blood pressure variations transmitted to the collar as it is supplied with fluid through a pressure regulator 5 at a uniform rate. One of the compartments 29 has an aperture 9 to atmosphere, through which a rod 12 connecting the diaphragm to a spring 10 extends loosely. A recording pen 19 is connected to a pneumatic chamber 14 having a nozzle 13 spaced from the spring 10. As the gap changes in size in response to deflections of the diaphragm, the pressure in the chamber 14 changes in linear proportion so that the pen 19 records the variations in pressure in the collar. The pressure regulator comprises a valve 35 controlled by a pneumatic chamber 7 located in the fluid supply upstream of the valve and communicating with the upstream side of the valve through a throttle valve 6 and with a vessel 38. When the rate of supply of fluid to the collar changes the valve is opened or closed to maintain the supply uniform. A chart-feed mechanism 26 and the compressor 23 are driven from a common power supply.