baber/WOPTO huggingface dataset:
Patent GB-1442525-A (GB)
Title: Method of influencing the reactivity of a gas-cooled pebble-bed nuclear reactor
IPC: G21C17/104
Filed: 1974-05-15
Abstract: 1442525 Controlling nuclear reactors HOCHTEMPERATUR - REAKTORBAU GmbH and KERNFORSCHUNGSANLAGE JULICH GmbH 15 May 1974 [22 May 1973] 21564/74 Heading G6C In a gas-cooled, pebble-bed reactor reactivity control is exercised (to perform shut-down or normal regulation) by the introduction of neutron absorber spheres whose diameter(s) are selected, in accordance with a formula, such as to determine their distribution and movement in and through the bed. If the fuel spheres have a diameter D, the absorber spheres, which are of lesser diameter dA, must be such that where d z =D(2/#3-1) is the diameter of the largest possible sphere which can be accommodated, in the densest packing configuration, between three mutually contacting fuel spheres, and where d z +xd z =D(#2-1). Absorber spheres of differing diameters and/or in differing members may be fed into different sphecified radial zones of the core. In a particular example where fuel spheres have a diameter D= 6 cm., d z  is 0À93 cm. and is the lower limit for the diameter of the absorber spheres, whereas d z +xd z  is approximately 2À5 cm. and is the upper limit. Absorber spheres having diameters lying in this range become partly lodged in the bed and partly travel through it.
Patent GB-1279766-A (GB)
Title: Improvements in or relating to disc brakes
Inventor: OSBORNE DUNCAN WILLIAM
IPC: F16D65/18
Filed: 1970-05-05
Abstract: 1279766 Disc brakes AUTOMOTIVE PRODUCTS CO Ltd 19 April 1971 [5 May 1970] 21583/70 Heading F2E  In a disc brake having a rotary disc 10 braked by two opposed pads 12a, 13a respectively operated by opposed hydraulic pistons 19, 21, piston 21 acting through a movable member 18 extending across the disc to pad 13a, a fixed casting 11, having mounting projections 15 normal to the disc axis, comprises an integral cylinder 14 and two spaced lugs 16 extending across the disc, with the pads located in the space and abutting inner surfaces of the lugs, and a bridge member extending across the lugs 16 opposite the cylinder end. The movable member 18 is of closed loop form and lies in the plane of the cylinder axis; the member is retained in and slides in the bridge member 28, 25. Brake rattle is avoided by a spring clip 32 pressing down the pads' backing plates 12, 13 and retained by split pins 29. Piston 19 is annular and piston 21 is stepped to provide two fluid chambers 34, 35 between the pistons for two separate brake control systems.
Patent GB-614670-A (GB)
Title: Improvements relating to vehicle steering mechanisms
IPC: B62D3/12
Filed: 1946-07-19
Abstract: 614,670. Rack-and-pinion gearing. BURMAN & SONS, Ltd., and BRIGGS, W. H. July 19, 1946, No. 21627. [Class 80 (i)] Rack-and-pinion steering mechanism for vehicles comprises a double rack a with teeth in staggered relation engaged by a double pinion c, each part of which has a pair of diametrically-opposed teeth e, e arranged at 90 degrees to the pair on the other part. As shown, the rack teeth b are provided on opposite. sides of the rack bar a which is prevented from rotating by a key g engaging in a longitudinal slot in the bar. The spindle d of the pinion c is supported in an eccentric bush h to allow of adjustment by a worm i.
Patent GB-224210-A (GB)
Title: Improvements in or relating to wind screens and weather shields for vehicles
IPC: B60J1/00
Filed: 1924-09-13
Abstract: 224,210. Soc. Anon. Carrosserie Kelsch. Nov. 3, 1923, [Convention date]. Winds-creens.-In a combined wind-screen and protective shield for the lower limbs of the occupants of a vehicle, particularly adapted for the rear seats of vehicles with torpedo bodies, the shield 2 is formed of two portions 3, 4 connected by a central hinge 5 supported from the vehicle body, and the wind-screen is formed ot two sections 6, 7 hinged together at 10 and also hinged respectively at 8, 9 to the portions 3, d of the shield, so that the axes of the four hinges meet at a single point' 11. The sections of the shield and wind-screen together form faces of a deformable polyhedron, so that access to the rear seating-space is readily obtained by lifting up one portion of the shield 2 and allowing the windscreen to deform in accordance with such movement of the shield. When the shield is curved as shown in Fig. 1, the hinges 8, 9 are arranged on upstanding ribs on the shield, while flexible jointing material is preferably disposed at the point 11 to prevent the entrance of draughts. The hinge 5 may be supported at its rear end by means of a strut attached to the body of the vehicle. The outer edges cf the screen sections 6, 7 may be supported by posts 12 to which sidescreens may be pivoted.
Patent GB-685988-A (GB)
Title: Improvements relating to the propulsion of vehicles
IPC: F02C3/02
Filed: 1949-06-14
Abstract: 685,988. Gas turbine jet propulsion plant. JENDRASSIK, G. June 13, 1950 [June 14, 1949], No. 21783/52. Divided out of 685,942. Class 110(iii) A jet-propulsion plant including a gas turbine 20 has pressure-exchanger 2 which supplies lowpressure air to a jet nozzle 3 and high-pressure hot gas which divides, one stream passing to the turbine 20, the second stream passing through a combustion chamber 11. The latter is returned through a duct 12 to the input side of the high-pressure scavenging zone of the exchanger. The turbine exhaust passes through a second jet nozzle 23. Fans, such as 14, may be used to assist in scavenging the exchanger cells. The rotor of the exchanger is mounted on a shaft 19 carrying a driving motor (not shown). Compression of the air in the exchanger is effected by expanding hot gases therein. Transfer pipes 17 connect expansion and compression cells. Gas delivered to a nozzle may be re-heated by burner means. The intermediate duct 6 between the fan 14 and the exchanger 2 is of constant cross-sectional area. The turbine, through reduction gearing, drives an airscrew hub 21, when the plant is used on an aircraft. Any type of pressure-exchanger may be used.
Patent GB-760228-A (GB)
Title: Improvements in or relating to timing devices
IPC: H01R4/24
Filed: 1953-08-06
Abstract: 760,228. Counting-apparatus. DOBBIE, A. K. Nov. 3,1954 [Aug. 6, 1953], No. 21790/53. Class 106 (1). A three-ring counter, Fig. 1, comprises two rings of sixty gas discharge tubes 0, 1, 2, 3-59; Om, 1m-59m, and one ring 0h-23h of twentyfour gas discharge tubes. The tubes of the first ring are successively fired at one second intervals by pulses from a suitable source, e.g. a quartz crystal clock, the tubes of the second ring being fired successively at one minute intervals and the tubes of the third ring being fired at one hour intervals. The firing of a tube in any ring extinguishes the preceding tube in the ring. Selected tubes of each ring are connected to gas discharge tubes of groups of such tubes X, Y so that the tube B or E of each group is fired at a pre-selected " second " of time to send a signal to an output circuit and is extinguished at a pre-selected later " second " of time to end the signal. Instead of a ring of sixty tubes three rings of five, four and three tubes connected in known manner to give a count of sixty may be used. A separate tube may be used to provide the outgoing pulse from a ring.
Patent GB-1356744-A (GB)
Title: Method for contacting a gas with a liquid
IPC: B01D47/10
Filed: 1972-05-10
Abstract: 1356744 Gas scrubber E I DU PONT DE NEMOURS & CO 10 May 1972 [10 May 1971] 21817/72 Heading B1R A method for contacting a gas with a liquid comprising directing a jet of liquid 26 countercurrentally to the gas in a conduit, the velocity of liquid from the jet 10 being sufficient to furnish greater than 1-0 jet horsepower per square foot of cross-sectional area of the conduit, and the average gas velocity being maintained at a value of at least 100 feet per minute and sufficient to reverse the direction of the liquid. The liquid jet may be positioned downstream of a venturi which is also supplied with liquid from overflow reservoirs 31.
Patent GB-1458621-A (GB)
Title: Apparatus for transporting plants
IPC: A01G9/14
Filed: 1974-05-16
Abstract: 1458621 Storage systems GREEN THUMB CORP 16 May 1974 [15 June 1973] 21873/74 Heading A4T Apparatus for transporting and storing plants comprises at least one cart 10 having tracks 21 bearing rollers 26, at least one pallet 12 for carrying plants 15, runners (18), Fig. 4 (not shown), on the pallet 12 for movement on the rollers 26, and at least one rack having rollers (45), Fig. 3 (not shown), for receiving the pallet(s) 12 when aligned with the tracks 21 on the cart 10. Bars 30 are provided at the ends of one track 21 to retain the pallet 12 during transport, the bars 30 being pivotable against a spring 36 for release. A frame 22 of the cart 10 has an upper portion 29 preferably adjustable along a lower portion 19 on rollers (9), Fig. 5 (not shown), to facilitate alignment of the tracks 21 with the rack, a bar 35 associated with  the bars 30 locking the frame portions 19, 29 together for transport, and the rollers 26, (45) are preferably of steel-sheathed, oil-impregnated wood.
Patent GB-597787-A (GB)
Title: Improvements in and relating to index devices
IPC: B42F17/34
Filed: 1945-08-27
Abstract: 597,787. Filing papers; indexing. BATES MANUFACTURING CO. Aug. 27, 1945, No. 21935. Convention date, Sept. 2, 1944. [Classes 16 and 146 (i)] In index devices such as telephone directories, calendars, registers &c., comprising a stock of cards or sheets which are suitably indexed and associated so that they can be opened up in a manner similar to the pages of a book, means are provided whereby by a single action of the operator, a sheet in the stack can be selected and the stack opened at the selected sheet. As shown in Figs. 4 and 5, a stack of sheets 33 is carried by split rings 34 in a base 10 to which is pivoted a cover 17 biassed by a spring 21 to its open position. The sheets are supported at the front by a plate 23 pivoted at 24 and spring- urged upwardly, and carrying at each side an upstanding member 26 having a lug adapted to engage a notch 32 in each of two dogs 22 pivoted to the cover 17. The dogs 22 have lateral extensions 40 at the top urged upwardly by springs 45, and slanting nose portions 41 at the bottom having inclined surfaces as shown in Fig. 5. The front of each sheet 33 is cut away to form a suitably marked tab in such a way that part of each sheet is visible. When it is desired to select a certain sheet, the tab of that sheet is depressed, thereby turning the plate 23 about its pivot and disengaging the member 26 from the notch 32 so that the cover 17 is raised by the spring 21. As the cover is raised the nose portions 41 of the dogs 22 slide over the edges of the held sheets but engage under the edges of the sheet next above the selected sheet and raise it and the sheets above it thereby opening the device at the required sheet. In a modification, Fig. 11, the sheets are supported on a plate 81 pivoted to the base near the back at 82 and two levers 83 pivoted to the sides of the base at 85 are connected at their ends by a bar 84 passing beneath the plate 81, the other ends of the levers 83 being in contact with the cover. When the selected sheet is depressed, the plate 81 is moved downwardly and the levers 83 are rotated so that their ends slide along and raise the cover. In the modification of Fig. 8, the cover is spring urged to the open position as in Figs. 4 and 5, but it is held closed by means of a hooked portion 60 of a plate 57 pivoted to the front wall 51 of the base. The desired sheet is selected by moving one of a number of bars 61 projecting through the wall 51 and holes 64 in the plate 57, inwardly to overlie the tab of the selected sheet. Each bar 61 has a shoulder 63 which engages and displaces the plate 57 as the bar is moved inwardly to release the cover. A spring 65 urges the plate 57 towards the wall 51. In both these modifications the mechanism for picking up the sheets is similar to that described with reference to Figs. 4, 5. Specification 472,208 is referred to
Patent GB-1147228-A (GB)
Title: Apparatus for measuring traffic density
IPC: G08G1/015
Filed: 1966-05-18
Abstract: 1,147,228. Road traffic measurements. GENERAL SIGNAL CORP. 18 May, 1966 [1 June, 1965], No. 22034/66. Heading G4Q. Traffic density is measured by integrating pulses the area of which is inversely proportional to vehicle speed. In one arrangement, Fig. 1, the output of an ultrasonic Doppler vehicle detector passes to an amplitude detector 18 which triggers a flip-flop 27 when a vehicle is detected. The vehicle detector output has a frequency proportional to vehicle speed and passes through a gate 20 opened by the flip-flop 27 to a counter 21 which counts cycles up to a pre-set number and then re-sets the flip-flop. Thus the flip-flop is set by each vehicle for a time inversely proportional to the vehicle speed, and this time is integrated by a capacitor 25 connected by a resistance 26 alternately to a potential source and to earth by means of a relay R1 controlled by the flip-flop. The potential across the capacitor is measured by a meter M which may be calibrated in terms of traffic density. In an alternative form of integrating circuit, Fig. 3 (not shown), the capacitor (45) is charged intermittently through a resistance (46) from a constant current source (48) and discharged continuously through a bleed resistance (47). In another arrangement, Fig. 2 (not shown), an ultra-sonic detector produces an output pulse for as long as a vehicle is within the detection zone, so the pulse length is inversely proportional to speed assuming an average length for the vehicle. These pulses are integrated by a relay (R3) controlling the charge and discharge of a capacitor (40). The detector also responds to tall vehicles, which are assumed to have a greater average length, and when one is detected operates a relay (R2) which causes the capacitor (40) to be charged from a lower potential source so that the area of the pulse is still inversely proportional to vehicle speed. In a modification, Fig. 4 (not shown), the capacitor is charged from constant current sources (54 and 55).
Patent GB-244824-A (GB)
Title: Improvements in corner locks for bedsteads
IPC: F16B12/60
Filed: 1924-09-22
Abstract: 244,824. Richardson, H. Sept. 22, 1924. Joints.-A corner joint for bedsteads comprises a bracket member 3, 4, 5 to receive the angle iron side 20, 21 which is held securely in position by the engagement of two pairs of locking elements such as the pin 11 and slots 24, and the projection 23 and slot 19. The angle iron side may be inverted, and is then held by the pin 11 and slot 25 together with the stud 18 and hole 27. The outer wall 4 of the bracket may be provided with an extension 6 passing through a slot in the inner wall 5 and terminating in a part 7 to which the end rail 15 may be secured. In the modification shown in Figs. Sand 9 the parts 23, 19 and 18, 27 are replaced by pins 30, 31 which engage a slot in the extension 4<1> of the outer wall 4.
Patent GB-1190339-A (GB)
Title: Improvements in or relating to Signal Amplifier Gain Control Arrangements
Inventor: LEGLER ERNST
IPC: H04N9/73
Filed: 1968-05-10
Abstract: 1,190,339. Transistor gain control circuits; colour television. FERNSEH G.m.b.H. 10 May, 1968 [10 May, 1967], No. 22382/68. Headings H3T and H4F. An arrangement for producing simultaneous and like changes in the gain of a plurality of signal amplifiers each including a modulable constant-current source, e.g. transistor 10 controlled by an input signal and connected to supply current to the commoned emitters of a pair of transistors, e.g. 16, 17 operating in the common-base configuration from the collector circuit of one of which, e.g. 17, an output signal is taken is characterized in that the collector of the other transistor e.g. 16 of each said pair is connected to a supply source by way of a resistor, e.g. 20, and is returned to a point of fixed potential at signal frequencies by way of a capacitor e.g. 21, and a direct-current negativefeedback path is established from said collector to the base of said other transistor of each said pair by way of a resistance potential divider of which one element e.g. 22 is connected between said collector and said base and the other element e.g. 23 is connected from said base to a bias line 65 common to all said amplifiers, the direct potential of which is adjustable to vary the gain of the amplifiers. It is stated in the Specification that certain of the resistors may be adjustable in order to provide for balancing up the amplifiers, the arrangement being particularly suitable for simultaneous adjustment of three colour channels in colour television.
Patent GB-640701-A (GB)
Title: Improvements in and relating to television screens
IPC: H01J9/227
Filed: 1946-07-29
Abstract: 640,701. Television. BRITISH THOMSONHOUSTON CO., Ltd., and SCOTT, W. J. July 29, 1946, No. 22551. [Class 40 (iii)] [Also in Group XL (a)] A fluorescent screen comprising a plurality of interlaced rasters, as for colour television, which is separate from and excited by the light from a cathode-ray tube screen, is made by a photographic or photomechanical process from the raster traced out by the electron beam in the tube; irregularities in the scanning raster are thus reproduced on the separate screen, giving more perfect alignment of the rasters. Some of the rasters may be reflecting instead of fluorescent. In one form the cathode-ray tube has a green screen and the separate screen has alternate lines of silver (reflecting green) and rhodamine (emitting red). In a three-colour screen, the separate rasters may be scanned separately and a separate printing block or stencil prepared for printing the separate screen in different fluorescent inks; or a single block may be used for all three printings. The cathode-ray tube may emit ultra-violet light alone or mixed with visible light, and the separate screen is then formed of a fluorescent raster printed over a fluorescent background of a different colour. Such a screen is preferably viewed from the over-printed side. The separate screen may be larger than the tube screen, or of the same size and mounted close to it. Specification 315,362, [Class 40 (iii)], is referred to.
Patent GB-859126-A (GB)
Title: Improvements in and relating to variable aperture masking plate assemblies for optical projectors or cameras
Inventor: PRATT ALBERT STANLEY
IPC: G03B21/32
Filed: 1957-07-17
Abstract: 859,126. Optical apparatus. RANK PRECISION INDUSTRIES (B.A.F.) Ltd. July 17, 1957, No. 22648/57. Classes 97(1) and 98(1) A variable aperture masking plate particularly for motion picture projectors or cameras comprises a base plate having a fixed aperture and two shutter members slidably supported on said base plate, each shutter member including a limb extending to the boundary of the base plate whereat it is connected to mechanism for urging the limbs in opposite directions to vary the effective aperture. As shown, a base plate 1 has an aperture 2 behind which are slidably mounted the two L-shaped shutters 3 and 4. The long sides of each shutter are mounted in a groove 5 milled in the back of the plate. A screw thread 6 having a knurled knob 13 is mounted within a housing 7 and carries a left hand threaded nut 9 attached to the long limb of the shutter member 4 and a right hand threaded nut 8 attached to the shutter member 3 and a spiral spring 10 located between the nuts to urge them apart. Thus rotation of the knob 13 in either direction serves to vary the length of one side of the aperture 2, the shutters being urged against the plate 1 by springs 11 and 12. In a further embodiment, the relative motion between the shutters is effected by the rotation of a pivoted arcuate plate which is attached to F-shaped shutter members on either side of the pivot. The mask is intended to adapt motion picture cameras or projectors to image formats of differing size.
Patent GB-307086-A (GB)
Title: Improvements relating to light-sensitive apparatus for producing or amplifying alternating currents
IPC: H03B17/00
Filed: 1927-08-29
Abstract: 307,086. Neale, J. Aug. 29, 1927. Selenium cells.-A group of selenium cells B1 - - B4 mounted on an insulating base C are connected in the arms of a Wheatstone's bridge circuit and subjected to a beam of light D projected by an oscillating mirror. The variation in resistance thus produced causes an alternating current to flow in a, load circuit G when a direct current source A is connected across the other diagonal. The cells are constructed as described in Specification 284,942, and the bridge circuit is adjusted for balance by applying a heated iron between the electrodes so as to reduce parts of the selenium to an amorphous condition thus varying the resistance.
Patent GB-500964-A (GB)
Title: Improvements relating to electrical relays
IPC: H01H49/00
Filed: 1937-08-18
Abstract: 500,964. Two - part couplings. WESTINCHOUSE BRAKE & SIGNAL CO., Ltd. Aug. 18, 1937, No. 22664. Convention date, May 7. [Class 38 (i)] [Also in Group XXXVII] A relay having an armature 17 movable in a straight-line path and adapted to operate, by means of a member 18, a number of flexible contact fingers 20 co-operating with fixed contact fingers 23, 24, is mounted on connectors C<SP>1</SP>, C<SP>2</SP>, the ends of the contact fingers projecting outside the sides of the contact support 22 and being inserted into slots 45 on the connectors, where they engage conducting strips 43. Specification 500,998 is referred to.
Patent GB-803878-A (GB)
Title: Improvements in or relating to the production of electric resistance heaters
IPC: H05B3/06
Filed: 1956-07-23
Abstract: 803,878. Electric heating resistances. KANTHAL, A. B. July 23, 1956 [July 28, 1955], No. 22741/56. Class 39(3) [Also in Group XXII] A terminal 14 is secured to each end of a helically coiled resistance heating element by inserting a cylindrical portion 14a of the terminal 14 into the wire helix 12 forming the heating element and electrical resistance welding the helix 12 to the portion 14a by spaced electrodes engaging the outer surface of the helix 12 and positioned sideby-side. Current is passed for a brief interval so that the surface only of the wire is fused. The helix 12 is surrounded by a compacted mass of insulating material and enclosed in a tubular sheath.
Patent GB-696139-A (GB)
Title: Improved archery target
IPC: F41J3/00
Filed: 1950-09-16
Abstract: 696,139. Archery targets. HAMILTON, G. A. Sept. 17, 1951. [Sept. 16, 1950] No. 22818/50. Class 132 (iii). An archery target comprises a tangled mass of fibrous vegetable matter permeated with a resilient adhesive having one surface, or two opposite surfaces, to which can be attached a sheet of target face material. Preferably the target is made from straw and latex. As shown, a mould comprises a cylindrical casing in which is welded a spider 2 to support a circular plate 3 and a circular top plate reinforced with bars 5. A removable structure of angle bars 6 is held on top of the casing by lugs 7 and has screw threaded pins 8 screwed through the flanges of bars 6 and fitting into sockets on bars 5. Thus when moulding a target a cloth sheet 9 is placed on the bottom plate, a straw latex mixture 10 is placed on the cloth 9 and is then covered by a latex coir fibre mixture 11 over which is placed another cloth 12. Plate 4 and structure 6 are put in position and pins 8 are screwed down to press plate 4 on to the agglomerate.
Patent GB-1565021-A (GB)
Title: Pharmaceutical compositions containing alkylamine deratives
IPC: A61K31/395
Filed: 1977-05-30
Abstract: The methylamine derivatives of general formula: <IMAGE> and their non-toxic addition salts, in which R represents n-propyl, isopropyl, isobutyl or allyl, are obtained by reducing the corresponding isocyanate by means of lithium aluminium hydride in an inert and anhydrous medium and then reacting the base obtained with an acid to produce a non-toxic addition salt.