baber/WOPTO huggingface dataset:
Patent GB-1014435-A (GB)
Title: Improvements in or relating to control rods
IPC: G21C7/20
Filed: 1964-04-30
Abstract: 1,014,435. Reactor control rods. GENERAL DYNAMICS CORPORATION. April 30, 1964 [May 6, 1963], No. 17977/64. Heading G6C. [Also in Division G3] A vertical nuclear reactor control rod having a driving motor connected to a control rod support cable, through a clutch which is disengaged in any emergency, has its emergency shut-down descent controlled by using a fraction of the energy of descent to rotate a flywheel geared to the cables, said fraction being automaticaly increased during descent by automatically increasing the flywheel inertia, so that the control rod arrives at a required lower position at reasonable speed without the initial drop being significantly delayed. The flywheel inertia is increased by centrifugal force displacing a liquid, preferably mercury, from a small to a large gyratory radius. The unit described is for two control rods acting in unison, and comprises (Fig. 2) a pair of drums 13 each containing a spirally wound control rod cable 12. Each drum carries a bevel gear meshing with a pinion placed between them on a vertically extending shaft 37, 41, 42 (Fig. 1). An electric motor 49 drives the shaft 42 via a reduction gear-box 50, an electromagnetic clutch 48, and an overrun clutch 46. After emergency descent, the overrun clutch prevents the fluid flywheel 70 from driving the cable drums. Mercury 60 is centrifugally forced from a central reservoir 57 through pipes 67 into a toroidal flywheel 70 containing baffles 71. Gas pressure equalizing pipes 73 convey displaced gas to the central reservoir. The effective inertia of the flywheel is also increased during control rod descent by virtue of the reducing radius at which the control rod weight acts, as the spiral turns are unwound from the drums 13; this may amount to 60%. During normal reactor operation, the motor 49 is used to correctly position the control rods, and it includes a brake for maintaining the position required. In a modification (Figs. 7, 8, not shown), the toroidal flywheel does not contain baffles, and the increasing inertia is caused by the mercury being injected into the flywheel through tangential nozzles in the same direction as the rotation of the flywheel. The inertial force is caused by the reaction to the nozzle flow, which will increase in rate as the increasing speed of rotation of the reservoir forces the mercury more quickly through the nozzles.
Patent GB-319401-A (GB)
Title: Improvements in and relating to mercury arc rectifiers
IPC: H01J13/20
Filed: 1928-06-21
Abstract: 319,401. British Thomson-Houston Co., Ltd., and Read, J. C. June 21, 1928. Low - pressure metallicvapour apparatus.-To prevent back-ignition in mercury-arc rectifiers, an anode shield 3 is of cylindrical shape where it surrounds the anode 1 and is provided, below the anode, with internal radial corrugations 4 which form arc spaces 5. The shield may be formed with a cylindrical extension 6 which may be tapered inwardly at the bottom.
Patent GB-458688-A (GB)
Title: Improved means for locking motor vehicles against unauthorised use
IPC: B60R25/00
Filed: 1935-06-24
Abstract: 458,688. Locking brake levers. WHITTLE, H., 16, Copthall Avenue, London. June 24, 1935, No. 18056. [Class 79 (iii)] The brake lever 3 on a motor vehicle is lockable by means of a push rod A passing through the dashboard 1 and front body-wall 2, the end 20 in advance of the wall 2 being shaped so that, when pushed forward, it bears on the end of and depresses an upstanding rod B into engagement with a toothed rack 7 on the end of a rod C connected to the brake lever. Each of the rods is slidably mounted in guide brackets, the rods A and B being operated against return springs 16, 17. The initial movement of the rod A may break the ignition circuit 13, further movement locking the brake lever. The two steps may be regulated by a transversely slidable stop 12 at the handle end which in the position shown will abut against the dashboard, but which when pushed to project on the other side of the rod A will be in alignment with a slot in the dashboard. The latch of a permutation or other lock 11, engageable with notches 14, 15, retains the rod A in either operative position.
Patent GB-708950-A (GB)
Title: Improvements relating to radiation pyrometers
Inventor: SCOLES GRAHAM JOHN
IPC: G01J5/04
Filed: 1951-07-31
Abstract: 708,950. Pyrometers. METROPOLITANVICKERS ELECTRICAL CO., Ltd. July 30, 1952 [July 31, 1951], No. 18111/51. Class 97(3) A radiant heat pyrometer comprises an inner pipe, an outer pipe surrounding and spaced from the inner pipe and having one end open and an apertured end wall across the other end, and a heat sensitive element positioned adjacent the end of the inner pipe remote from said end wall to receive heat rays passing through said aperture and along the inner pipe, openings being provided such that cooling gas blown through the inner pipe from an inlet adjacent the heat sensitive element, subsequently passes partly through said aperture and partly through the space between the two pipes and thence to the outside of the outer pipe. The pyrometer is shown in position in an aperture 2 in the wall 1 of a furnace and comprises a pipe 6 welded to a pipe 7 having one end wall 8 apertured at 9 to allow radiation from a hot body 3 to pass along the pipe 6 to a heat sensitive element 4 in a case 5 secured to the pipe 6. This case has an inlet 10 through which cooling air is passed, the air subsequently flowing through apertures 11 in pipe 6, apertures 12 in pipe 7, apertures 9 in the end wall of pipe 7 and between radial spokes 14 at the other end of pipe 7. The two pipes are formed as of stainless steel, the internal surface of pipe 6 may be blackened and the outer surface thereof may be highly polished or partly coated with heat insulating material. Specification 687,415, [Group XL(b)], is referred to.
Patent GB-488454-A (GB)
Title: Improvements in or relating to means for inverstigating the radiation condition of alight source
IPC: G01J1/08
Filed: 1937-06-30
Abstract: 488,454. Photometers ; pyrometers. ZEISS IKON AKT.-CES. June 30, 1937, No. 18200. Convention date, July 9, 1936. [Classes 97 (i) and 97 (iii)] In an optical method of investigating the radiation condition of a comparison light source for a photometer or pyrometer, the intensities of radiation in different spectral ranges are compared. In the apparatus shown, the comparison lamp 1 is supplied by a battery 11 through a variable resistance 10. By means of a photometer cube 3, and prisms 4 and 7, the lamp is observed through differently coloured filters 6 and 9 and a matt plate 5. A phosphorescent layer 8 attached to the prism 7 re-radiates the light transmitted by the filter 9 in the same spectral region as that transmitted by the filter 6. To obtain a standard condition of the light source the resistance 10 is adjusted until the two visual fields match. A transparent phosphorescent layer 15 may replace the opaque layer 8. To use the apparatus as a photometer, after the above adjustment, the prism 7 is removed to the position shown in dotted lines, the filter 6 removed, and grey wedges 13 and 14 operated to match the comparison lamp with the unknown light source observed through the objective 12. To use the apparatus as a pyrometer the prism 7 and the filter 6 are removed from the light paths and the resistance 10 adjusted to match the colour of the lamp with that of the object. The prism and filter are then replaced and the grey wedges 13 and 14 operated to match the visual fields. For either of these purposes the wedges may be suitably directly calibrated. The Specification also refers to the use of the apparatus as a disappearing filament pyrometer, and to the use of a gas discharge lamp instead of a filament lamp, a comparison then being made of two definite lines in the emission spectrum.
Patent GB-130522-A (GB)
Title: Improvements in Loom Shuttles.
Inventor: SIMPSON WILLIAM
IPC: D03J5/24
Filed: 1918-11-08
Abstract: 130,522. Simpson, W. Nov. 8, 1918. Shuttles.-The ordinary headed stud in the recess of a hand - threaded shuttle is replaced by a length of wire having a cranked stem A supporting a coil A<2> filling the shuttle recess, the end portion A<3> of the c o i l being left straight and extending obliquely across the shuttle to direct any loop of weft to the delivery side and away from the threaded slot. The stem is secured by an inverted U extension A<4>, A<5> driven into a hole in the shuttle, the first bend A<6> being secured in a recess B by a cross-wire C continued from the eye, somewhat, as described in Specification 4327/12.
Patent GB-417643-A (GB)
Title: Improvements in anodic incandescent lamps
IPC: H01K11/00
Filed: 1934-06-20
Abstract: 417,643. Discharge lamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Assignees of Patent- Treuhand-Ges. fur Elektrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin.) June 20, 1934, No. 18257. Convention date, June 28, 1933. [Class 39 (i).] In an anodic incandescent lamp provided with an indirectly-heated cathode and an anode which is heated by electron-bombardment to a colour temperature of 2000 K. as described in Specification 412,356, the cathode is divided into two or more parts. A spherical or cubical anode 0 of 3 mms. diameter is supported by a wire n located within an insulating tube p. Four cathodes g, which consist of heating elements within metal-coated insulating tubes provided with a coating of thermionic material, are registered between mica and metallic discs q, r. Rods s, t and u, v support the discs. The cathode heaters are connected in parallel with each other and also with the discharge. Blakening of the wall of the bulb is prevented by a coating of cryolite, sodium chloride or calcium fluoride, and the anode may be formed of carbon or of a carbide of tantalum, niobium, zirconium or hafnium. Space-charge grids may be provided. If the anode is adapted to be fed forwards, it may be suspended from above and heated to its melting point. Drips from the anode are then caught by a carbon layer. The cathodes are separated from one another by mica discs when polyphase current is used.
Patent GB-531257-A (GB)
Title: Method of and means for hydraulically operating machine tools and other mechanical appliances
IPC: F15B11/048
Filed: 1939-06-23
Abstract: 531,257. Hydraulic transmission of power. FITZJOHN, A. P. June 23, 1939, No. 183651 [Class 69 (ii)] A hydraulically-operated machine-tool-slide or the like and a speed-controlling throttle-valve therefor have co-operating parts, and are so arranged that the speed of the tool-slide is reduced during part of the forward stroke, and is normal during the completion of the forward stroke and the whole of the return stroke. In the apparatus shown in Figs. 1 and 2, a toolslide 17 is formed with a cylinder 30 containing a stationary piston 31 which is mounted on a bed 16 formed with passages 32, 34, the passage 32 communicating with a passage 33 through the piston. The passages 32, 34 communicate with a distributing-valve and a rotary plug-cock 18 which is formed with a through-port 19 and a peripheral throttle-port 32 for connecting ports 20, 21 in a housing 15 on the bed 16. A bellcrank 24 on the plug is arranged in the path of a pawl 28 pivoted on an adjustable support 29 on the tool-slide. When liquid is directed into the passage 32 or 34, the tool-slide is fed towards the right or returned towards the left, and exhaust takes place through the passage 34 or 32, respectively. In the initial part of the feedstroke, the port 19 connects the ports 20, 21, and the tool-slide is fed at normal speed. When the pawl rocks the bell-crank, the plug is turned, the throttle-port 22 connects the ports 20, 21, and the speed of the tool-slide is reduced. When the pawl releases the bell-crank, a spring 25 returns the bell-crank and plug, and the tool-slide travels slightly further at normal speed. The tool-slide returns at normal speed, since the pawl rides idly over the bell-crank.
Patent GB-938818-A (GB)
Title: Method of and apparatus for treating the waste gases of blown steel converters
IPC: C21C5/38
Filed: 1960-05-24
Abstract: 938,818. Washing gases; utilizing waste gases. L. & C. STEINMULLER G.m.b.H. May 24, 1960, No. 18366/60. Classes 51 (2) and 55 (2). The blow-gas from a converter 1 (Fig. 2) is collected in a chimney 2 with little or no admission of air and passed successively through a cooler 3, a scrubber 5 and a dust separator 7 to a point of use, a valved-connection 4 placed between the cooler 3 and the scrubber 5 enabling the gas collected during the first and last two minutes of each blow period to be discharged through another outlet. As shown, three converters share a common scrubber 5 and dust separator 7 and the blow-gas after passing through the dust separator 7 is burned in a steam boiler 9 also fired by other means indicated by reference 10. The annular gap between the mouth of the converter and the chimney may be partially closed by a latticework structure and the openings therethrough may be covered with mica. The scrubber 5 (Fig. 5) has sprays 15 and 16 and a collecting tank 17 and may incorporate a valve 4 shown as a cap which when lowered into the water in the tank 17 will seal the upper end of the gas inlet. Sludge collecting in the tank 17 is removed at 18.
Patent GB-503508-A (GB)
Title: Improvements in and relating to means for producing periodic light flashes
IPC: H01K11/00
Filed: 1937-07-02
Abstract: 503,508. Discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. July 2, 1937, No. 18433. Void. Convention date, July 4, 1936. [Class 39 (i)] For producing light flashes, the space between two electrodes is bridged by a conductive jet traversed by periodic currents. The electrodes may contain or form the nozzles, and the jet may be passed through a capillary or may be surrounded by a gas jet. Mercury, an alloy of potassium and sodium, melted metals, or a salt solution may form the material of the jet.
Patent GB-152448-A (GB)
Title: Improvements relating to the impression cylinders of printing presses
IPC: B41F13/28
Filed: 1919-07-24
Abstract: 152,448. Terrey, A., and Smith, J. H. W. July 24, 1919. Tripping-arrangements.-The impression cylinder of a printing-press is mounted in eccentric bearings adapted to be rotated by hand to trip or untrip the cylinder, the drive being transmitted directly through a co-axial coupling, such as an Oldham coupling, so as not to be affected by the adjustment of the cylinder. The shaft a of an impression cylinder is mounted in eccentric bearings b and c rotated by a hand-operated shaft g having pinions f, f<1> engaging teeth d, e on the bearings b, c, respectively. One end of the shaft a is counected by a form of Oldham coupling i, j, k to a driving-shaft m driven by spur, chain, helical, or worm gear. A spring-pressed pawl p engaging a double ratchet sprocket o on the shaft g locks the bearings b, c in their adjusted positions. The bearings b, c may be operated independently and the teeth e may be formed on a rim e<1> adjustably secured to the bearing c by bolts z passing through angular slots in the rim, so that the bearing c may be adjusted relatively to the bearing b when both are rotated by the same shaft. A worm drive for the shaft m is also described, the worm-wheel being mounted in an oil-bath, and the shafts m, a supported in ball and roller bearings respectively.
Patent GB-834752-A (GB)
Title: Improved lever-operable electrical switch and contact arrangement therefor
IPC: H01H13/70
Filed: 1958-06-10
Abstract: 834,752. Retractive switches; keyboard switches. GENERAL MOTORS CORPORATION. June 10, 1958 [June 17, 1957], No. 18480/58. Class 38 (5). A switch comprises a die-cast housing 20 having an insulating base 22 on which two sheets of resilient metal 32 and 36 are fixed by rivets 42, one of which forms a terminal 44. The sheet 32 has four pairs of cut-out strips 46 and 48 bent upwardly as shown in Fig. 3, each carrying a contact member 34. Fixed contacts 40, connected to terminals 38, are provided in the base 22 beneath contacts 34. The sheet 36 has cut-out strips 52 and 53 overlying strips 46 and 48 and engaging the corners 54 of actuator members 28, four of which are pivoted on a common rod 30 in individual openings 24 in housing 20. When an actuator 28 is pivoted, for example, to the left in Fig. 3, a corner 54 forces a strip 52 downwardly to depress strip 48 and cause contact 34 to engage the respective fixed contact 40. When the actuator 28 is released the strip 52 pivots it back to its central position shown and the resiliency of sheet 32 is such that the engagement between contacts 34 and 40 is then broken.
Patent GB-1504901-A (GB)
Title: Sense switching circuits
IPC: H04N9/465
Filed: 1975-05-02
Abstract: 1504901 Sense inversion modulation; transistor amplifier SONY CORP 2 May 1975 [10 May 1974] 18513/75 Headings H3R and H3T In a sense switching circuit comprising a semiconductor device Q in which the emitter E of a bipolar transistor carries an IGFET type insulated gate G, the gate-emitter voltage controlling the common-emitter current amplification factor h FE  with a characteristic having a symmetrical valley, a first relatively low frequency rectangular switching signal 36 and a second relatively high frequency signal 37 to be switched are applied between the gate G and emitter E together with a bias 39 to cause the working point to operate equally on each side of the valley (Fig. 7). The output 35 from the collector load 34 comprises HF signal at fixed level but switched sense. Application is suggested to PAL TV for chrominance signal switching, but in the embodiment the HF signal is sinusoidal. Alternatively (Fig. 8, not shown) the switching signal and bias may be applied to the emitter, with a similar switching signal to the base to keep V EB  constant, while the HF signal is taken to the gate. The semi-conductor device may be NPN as shown or PNP; the emitter region may include a barrier comprising a sub-region of higher impurity content within the minority carrier diffusion distance of the emitter-base junction.
Patent GB-408118-A (GB)
Title: Improved method of and device for machining razor blades
IPC: B21D53/64
Filed: 1933-06-29
Abstract: 408,118. Making razor blades. SIEPMANN, E., SIEPMANN, E., and SIEPMANN, M., (trading as SIEPMANN & CO., E.), 14, Sommerstrasse, Solingen, Germany. June 29, 1933, No. 18526. Convention date, Sept. 5, 1932. [Classes 83 (ii) and 83 (iii).] Milling.-In producing razor blades from a steel strip, the strip a is passed through a machine provided with milling-cutters operating on both sides and at both edges of the strip. The strip is unwound from a drum t and passes first to a braking device r<1> and then over a number of guide rollers q<1>, q2 to a drum t<1> driven by belting v to draw the strip through the machine. Each guide roller q<2> holds the strip in contact with a milling - cutter b-e, each cutter forming a bevel on one side of one edge of the strip The cutters are driven by belt gearing x and are adjustable horizontally and vertically on compound slides f<1>, g<1> by means of hand wheels o <1>. The strip is preferably made thinner at the longitudinal edges than elsewhere.
Patent GB-1110408-A (GB)
Title: Process and apparatus for the automatic control of the heat production in a furnace
IPC: F22G5/02
Filed: 1965-05-03
Abstract: 1,110,408. Automatic control of burners; fluid-pressure servomotor systems. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. May 3, 1965 [May 5, 1964], No.18555/65. Heading G3R. [Also in Division F4] In an automatic control system for a furnace having at least two burners, in which the pressure in the fuel supply line 1 is increased to increase the fuel supply to the burners 3, 4, 5, the fuel/air supply ratio is kept constant by a controller 8 and additional burners are put into use when the fuel  pressure exceeds a set limit, or out of use when the fuel pressure drops, two successive switching actions of the same type i.e. "burner on", or "burner off" can only take place when spaced by a predetermined time period. A pressure gauge 10, controller 11 and valve 12 control the fuel supply in accordance with demand signals from a pressure gauge 14 in a steam boiler. The signal from the pressure gauge 10 is also fed to a selector 15, 16 giving signals for high and low fuel pressure respectively. A device 17 receives signals from the selectors 15, 16 and switches on or off the next burner. The device 17 Fig. 2 (not shown) comprises a stopping switch operated by pawls actuated by solenoids energized in response to signals from the selectors 15, 16. Each position of the stopping switch corresponds to one burner. Switches connected to a time clock are arranged in series with the contacts operated by the selectors 15, 16, and are closed when the time clock is not running. In order that the time switch does not start if the preceding signal from the selectors moved the stopping switch in the opposite direction to the signal received, a changeover switch is arranged so that, in either position, it bridges one of the switches connected to the time clock Fig. 3 (not shown). Whichever solenoid is energized, the changeover switch is actuated to bridge the time clock controlled switch in series with the other solenoid.
Patent GB-146489-A (GB)
Title: Fire control apparatus for naval guns
IPC: F41G5/22
Filed: 1920-07-05
Abstract: 146,489. Krupp Akt.-Ges., F. Nov. 4, 1916, [Convention date]. Ordnance, discharging by means external to breech mechanism.-Consists in providing gyroscopic fire-control apparatus with special means to correct the range angle of the gun when the shot is fired at or near the point of reversal of the rolling movement. Fig. 1 shows a firecontrol instrument mounted on a trainable. support A arranged at a transmitting station remote from the gun N<1>. The instrument com-- prises a sighting telescope B<1> stabilized by an electrically-driven gyroscope B mounted in a casing B<5>. The gyroscope and its casing are provided with contacts b<3>, b<4>, respectively, arranged in a circuit leading to the firing coil n<2> and controlled by a switch P. The range is set up at the transmitting station on a scale k<1> and communicated to a dial M at the gun by a transmitter J, and the gun is elevated until the dial N agrees with the dial M. The correction is applied by turning a hand-wheel F which is connected with the transmitter J through a clutch F<4> and differential gear i, i<2>. The movements to be imparted to the hand-wheel F are determined, by marks mounted on the instrument A as follows. The sighting telescope carries a depending arm B<2> having marks b<6>, b<7>, b<8> moving over rolling- angle scales a<5>, a<6>, a<7> fixed to the support A. Rockingly mounted on the support A is a segmental lack which is provided with a mark e<1> and geared with the hand-wheel F so as to follow the rolling movements of the mark b<8> up to the point of reversal. Meanwhile the casing B<5> of the gyroscope is turned through the same angle by gearing g<12>, b<9>, and the contacts b<3>, b<4> therefore occupy the same relative positions as the marks b<8>, e<1>. If the switch P is then closed, the gun will fire at the point of reversal of the roll and the gun will be at the correct angle to the horizontal plane at the instant of firing since the operation of the hand-wheel F has added or subtracted the angle of roll. If it is desired to fire just after the reversal on one side or the other of the swing, the marks e<3>, e<2>, which may be adjustable, are used in place of the mark e'. In order to use the apparotus for giving the advance ignition when firing as the gun passes througn its horizontal position, the clutch F<4> is disconnected and a second rocking sector D having a mark d<1> is moved by the hand-wheel F to follow the mark b<7> up to the outward limit of its swing, the ratio of gearing between D and B<5> being so chosen that the contacts b<3>, b<4> are then suitably spaced to produce the desired advance in the ignition.