baber/WOPTO huggingface dataset:
Patent GB-1218915-A (GB)
Title: Expansible rotary drill bit with hydraulic lock
IPC: E21B10/34
Filed: 1969-08-01
Abstract: 1,218,915. Earth drills. ROTARY OIL TOOL CO. 1 Aug., 1969 [24 Sept., 1968], No. 38667/69. Heading E1F. A rotary drill bit has cutters 45 (e.g. roller cutters, drag cutters or milling cutters) on pivoted arms 42, which can be expanded by relative downward movement of a central tubular member 49. While the drill string is lowered, the cutters are kept retracted by a hydraulic lock formed by injecting liquid into a space 65 through an opening normally sealed by a plug 65d. The spacer communicates with the bore of the drill string through passages 66 which are closed by a central sleeve 68 retained by fingers 71 with projections 72 which engage recesses 76 in the bore. The sleeve 68 is removed to allow the cutters to be expanded by dropping a ball onto the sleeve and applying fluid pressure so that the sleeve slides downwardly to uncover the passages 66. Drilling fluid is then pumped down the outside of the drill string to pass upwardly through the central bore 85, 67, displacing the ball on the sleeve 68. Differential fluid pressure then depresses the central body relative to the drill bit. The differential pressure is increased initially by a restriction 83 at the lower end of the central bore 85, which is by passed by side passages 83a which are uncovered as the tip of the central member slides through a sleeve 51 on the bit. In modification (Fig. 5 not shown) a temporary restriction is effected by a non-return valve which does not allow upward flow (except through a small bore passage) until the side passages are uncovered by the sleeve.
Patent GB-361668-A (GB)
Title: Improvements in or relating to mechanical handling of billets and the like
IPC: B21B39/00
Filed: 1930-12-23
Abstract: 361,668. Rolling. WHITE, A. E., 5, Quality Court, Chancery Lane, London.- (Morgan Construction Co. ; 15, Belmont Street, Worcester, Massachusetts, U.S.A.) Dec. 23, 1930, No. 38704. [Class 83 (iv).] An irregular pile of hot bars delivered on the higher levels a of stationary supports 1 are delivered into the trough 3 by the motion of movable skids 2 oscillated by eccentrics 6, driven by a motor 8. Fingers 12 when rotated clockwise also assist in this delivery. If the irregular pile requires squaring up on the levels a, supplementary supports 16 are raised by cams 15 to assist in forming a temporary trough and hold the bars therein while they are being squared up by the counterclockwise rotation of the fingers 12. The operator from a pulpit 9 controls or reverses the motors 14 or 8 as required.
Patent GB-1440826-A (GB)
Title: Helicopter display devices
IPC: B64D45/00
Filed: 1973-08-16
Abstract: 1440826 Helicopter display apparatus THOMSON-CSF and HELI-UNION 16 Aug 1973 [17 Aug 1972 17 Nov 1972] 38871/73 Heading B7W A helicopter is provided with a closed-circuit television system to enable the pilot to position the aircraft over a ground or water surface during a landing or load-winching operation. The camera 1 is mounted underneath the fuselage in a fixed, or adjustable gimbal, mounting and the receiver 2 is in a position to be viewed by the pilot and arranged to present linear luminous markers on the screen denoting pitch and roll attitude and a numerical indication of altitude. The system comprises also a roll and pitch indicating instrument 3 and a height measuring instrument 4. The video output from camera 1 is connected to a separator 5 and to an input of an output circuit 7. Separator 5 extracts from the video signal field frequency sync pulses, line frequency sync pulses and blanking signals fed respectively to the sync inputs of a generator 10 producing saw tooth signals at field frequency and of a generator 20 producing saw tooth signals at line frequency, as well as an auxiliary input of a mixer 6. Output of generator 10 is connected to an input of a comparator 11 which has a pitch input 31 from the trim indicator 3. The comparator, which supplies a shaper circuit 12, compares the field frequency signal with a D.C. voltage characteristic of pitch angle and the circuit 12 transmits a signal to mixer 6 to be fed through output circuit 7 into the final video signal for application to receiver 2. This is repeated during the course of each field period to produce on the screen a bar or mobile marker representative of pitch angle. Similarly a generator 20, comparator 21 having a roll input 32 from trim indicator 3, and shaper circuit 22 produce an input to mixer 6 to produce a bar on the screen representative of roll angle. Height measuring circuit 4 is connected to a coder circuit 8 which codes a D.C. voltage into digital form and transmits it to a character synthesiser circuit 9. The latter is synchronized by the field frequency and line frequency sync pulses which it receives from divider circuit 5 through a connection not shown to the signals required for the formation on the screen of numerical height data.
Patent GB-880427-A (GB)
Title: Improvements in or relating to filters for gases containing matter in suspension
IPC: B01D46/52
Filed: 1958-12-02
Abstract: 880,427. Gas filters. DRAGER, O. H. Dec. 2, 1958 [Dec. 2, 1957], No. 38908/58. Class 8(2). A gas filter element is formed by folding concertina-wise a layer 1, Fig. 1, of filter medium e.g., paper faced on one or both sides with a layer 2 of greater porosity e.g. stiff paper, or a grating of metal wool, cotton or plastic ; the so folded element is then folded or connected to a similar element to form one or more V-shaped troughs 12, Fig. 3, and a series of such troughs are sealingly mounted in an open-ended box 13 having wedgeshaped spacer elements 16.
Patent GB-1164238-A (GB)
Title: A Heat Sensor Cable and Fire Detector and Preventing System Comprising Such Heat Sensor Cable.
Inventor: HARTMAN ROBERT LOUIS
IPC: H01B7/32
Filed: 1967-08-23
Abstract: 1,164,238. Fire alarms. R. L. HARTMAN and R. A. HARTMAN. 23 Aug., 1967 [26 Aug., 1966], No. 38925/67. Heading G4N. [Also in Divisions H1 and H2] A temperature-responsive cable comprises a conventional insulated conductor 12 and a fusible conductor 16 without separate insulation, both conductors being contained in an insulating tube 10 having a melting point greater than that of the fusible conductor. The tube 10 may be of thermoplastic material such as vinyl-coated fibre-glass and is sufficiently stiff as to permit the two conductors to be pulled out and replaced after part of conductor 16 has fused due to a high-temperature condition. Conductor 12 may be copper or aluminium; fusible conductor 16 may be of an alloy comprising In and Sn; or Bi, Cd, In and Sn; or Pb/Sn (60: 40) and may have a core (Fig. 2, not shown) of rosin paste flux or silicon grease having a boiling point lower than the melting point of the alloy. The space between the conductors 12, 16 and the tube 10 may be filled with silicon grease. The temperature sensing cable 10 may be included in a conventional cable having metal cladding 32, power conductors 34, 36 and an aluminium earth wire 38. Conductors 12, 16 may be formed as a twisted pair (Fig. 3, not shown). Temperature alarm systems.-In Fig. 6, power conductors 80 are formed as a composite cable with the temperature sensing pair 1A, 1B normally short-circuited at their remote end. In the event of fire or of overload of the main circuit 80, fusible conductor 1A becomes open circuit so that thyristor 100 is turned on, shortcircuiting supply mains 110, 112 and opening circuit breakers (not shown) or the main or branch fuses. Further thyristors 102, 104 are associated with other power circuits having respective temperature sensing cables (not shown). A common thyristor 106 becomes conductive when any of the other thyristors is operated, initiating an alarm 108. In Fig. 5 (not shown) the thyristors 100, 102, 104 are replaced by normally-energized relays which become released when the sensing cable fuses, thus opening circuit breakers in the appropriate power circuit.
Patent GB-1119731-A (GB)
Title: Rotary ball valve
IPC: F16K5/20
Filed: 1965-09-13
Abstract: 1,119,731. Valves. B. C. RICHARDS & CO. PTY. Ltd. 13 Sept., 1965], [11 Sept., 1964], No. 38980/65. Heading F2V. A rotary ball valve comprises a diametrically apertured ball 14 rotatable in a valve housing which has inlet and outlet flow passages. An adjustable seal is provided at one side of the ball and comprises a sealing ring 37, a rigid backing ring 38 and a take-up ring 41, all arranged in a recess 42 of the housing. The take-up ring 41 has wedge-shaped grooves in its end surface which co-operate with balls 48 or pegs in the radial surface of the recess so that on rotation of spindle 45 an eccentric pin 44 rotates the take-up ring 41 resulting in axial movement of the seal assembly.
Patent GB-1038079-A (GB)
Title: Installation for heating fine granular substances, particularly powdered cement raw material
IPC: F27B7/20
Filed: 1963-10-04
Abstract: 1,038,079. Preheating and charging cement raw materials. KLOCKNER-HUMBOLDTDEUTZ A.G. Oct. 4, 1963 [Oct. 18, 1962], No. 39172/63. Heading F4B. Apparatus for preheating and charging fine granular material comprises two or more component gas flow paths through ducts, each leading to an associated dust separator of one or more stages such that the hot gases flow along " parallel " component lines through each separator stage whereas the material passes through each separator of each stage in " series ". Hot gases from a rotary kiln 1 are divided into two component gas streams flowing in parallel through cyclone dust separators, the respective gas paths being on one hand duct 3, cyclone 5, duct 16, cyclone 17, duct 18, cyclone 19, outlet duct 20, and, on the other hand duct 4, cyclone 6, duct 22, cyclone 23, duct 24, cyclone 25, outlet duct 26. Both outlet ducts converge into a common duct 21 coupled to an extraction fan 27. Raw cement material is fed from a screw conveyer 29 and bucket wheel 30 through the pipe 31 into the conduit 18 between cyclones 17 and 19 and is entrained by the hot gases and passes into the cyclone 19. The separated powder falls through the discharge pipe 32 into the duct 24 and passes in a like manner through cyclone 25, pipe 33, duct 22, cyclone 23, pipe 34, duct 16, cyclone 17, pipe 35, duct 3, cyclone 5, pipe 14, duct 4, cyclone 6 and pipe 15 to the kiln 1. Thus the two component gas streams pass in parallel through each separator stage whereas the material passes in series through each separator of each stage. The embodiment illustrated in Fig. 1 (not shown) employs only one cyclone stage. In the alternative embodiments, Figs. 3 and 4 (not shown), the gas ducts from the kiln are formed into a common duct 37 into which the discharge pipe from the second stage is connected. In the former embodiment, Fig. 3, the discharge pipe leads to the base of the common duct and the discharge from the first stage cyclones passes via pipes 42 and 43 to the kiln through return pipe 44. In the latter embodiment, Fig. 4, the second stage discharge pipe 36 leads into the top of the common duct 37 and the discharge pipe from the first stage cyclone leads into the base of this duct, the other first stage cyclone discharge duct 47 returning to the kiln. There may be more than two component gas paths and more or less than three separator stages.
Patent GB-355630-A (GB)
Title: Improvements in apparatus for the detection of smoke from furnaces
IPC: F23N5/00
Filed: 1930-12-31
Abstract: A spark gap is arranged in the path of the flue gases from a furnace and connected to a source of high potential and to a luminous discharge lamp or tube such as a Geissler or neon tube so that when a spark passes due to the presence of smoke <PICT:0355630/III/1> <PICT:0355630/III/2> <PICT:0355630/III/3> the lamp or tube is energized.  A sparking plug p projects into the flue passage or chimney d and is connected to the secondary winding of a transformer tf the other terminal of which is connected to earth through a luminous discharge tube formed into the word " Smoke."  A variable capacity vc may be connected across the high tension lead to the sparking plug and earth to adjust the potential across the tube nearly to glow point when no smoke is passing, making the apparatus more sensitive.  This variable capacity may comprise a metal rod sliding inside a glass tube fixed within a metal tube.  A limiting resistance r is provided in series with the primary winding of the transformer. Several chimneys d<1>, d<2>, d<3>, Fig. 2, ma be provided with sparking plugs p<1>, p<2>, p<3> connected in sequence with the transformer secondary by a rotary switch rs driven by an electric motor.  Neon lamps n<1>, n<2>, n<3> are provided in each lead to the sparking plugs to indicate to the operator which chimney is smoking, or these lamps may each comprise a neon tube in the form of the word " Smoke."  The sparking plug projects to the centre of the chimney and comprises an outer glass tube ot, Fig. 4, carried by a metal fitting f screwing into the wall of the chimney, and an inner glass tube i containing a pointed rod pr.  The outer electrode oe is clamped to the tube ot at C and connected by a wire w to the metal fitting f.  To prevent alteration of the length of the spark due to expansion of the rod pr a spring s holds a nut u on the rod against the end of the tube i.  A glass bushing holds the inner tube i centrally within a nipple np screwing into the fitting f and by turning the nipple the spark length can be adjusted, a lock nut ln securing it in adjusted position.  Holes h admit air to the space between the glass tubes to sweep away soot particles, a bead b on the inner tube deflecting the air away from the spark gap. The outer electrode may have more than one sparking point.  The potential across the sparking plug may be varied by a switch which may be calibrated in various densities of smoke.
Patent GB-338778-A (GB)
Title: Improvements in or relating to apparatus for severing the edges of glass sheets
IPC: C03B33/09
Filed: 1929-12-24
Abstract: 338,778. White, A. E., (Pittsburgh Plate Glass Co.). Dec. 24, 1929. Cutting.-Relates to the apparatus described in Specification 338,045 for removing the edges of a continuously-formed ribbon of glass. The invention consists in providing means for removing the edge-severing strips in advance of the application of heat to the transverse strips, and for supporting them so that they adjust themselves to the position of the glass ribbon. The invention, as described in the prior Specification, is used in conjunction with a device for cutting off sections from the continuous ribbon of glass by electrically heating the glass along a transverse line and then chilling it to cause it to crack. This device comprises a pair of strips of high resistance metal supported on each side of the glass ribbon 2 by bars 4, 5 carried by levers 17 pivoted to frames 6. A solenoid 14, when energized, forces the strips into contact with the glass. The frames 6 are suspended by a cable 7 to which counterbalance weights 11 are attached, and the frames can move upwards with the glass ribbon when the strips are in contact with it. After the glass has been heated sufficiently, a tool is applied to cause it to crack and the section of glass so detached is removed to a rack. The edge removing device which forms the present invention includes two vertical bars 21 each of which supports a resistance strip 23. The bars are carried by guide bars 27 which can slide vertically through brackets 29, 30 forming parts of a frame 31, 32. Each bar 21 is supported by a cable 36 and is balanced by a counterweight 35. The frame member 31 can be adjusted in relation to the member 32 by a brace 41, and the whole frame is pivoted on a standard 45. The position of the standard is adjustable on the platform 3, and this adjustment, in conjunction with stop screws 48, 50, enables the resistance strips to be adjusted in relation to the surface of the glass ribbon 2. In use, the resistance strips are supplied with current before the solenoids 14 are energized to clamp the bars 4, 5 against the glass, so that the strips 23 heat lines along the edges of the glass before it is heated along the transverse lines. After the bars 4, 5 are clamped to the glass, they move upwards with it until they engage the bars 21 thus causing the vertical heaters to move with the glass during the remainder of the heating- period. After the section of glass is cracked-off and removed, it is chilled along the vertical heated lines by the application of a wetted tool and the edges are thus cracked off. The. heaters return by gravity to the starting-position after the section of glass has been removed. The heating-strips need not be in contact with the glass but may be supported a. little distance from it so that it is heated by radiation. This may be done by setting each strip in a groove on its supporting-bar, and by providing the bar with a distance piece which prevents it from touching the glass
Patent GB-1066037-A (GB)
Title: Thread waxing or lubricating device
IPC: B65H71/00
Filed: 1963-10-08
Abstract: 1,066,037. Finishing yams. W. REINERS. Oct. 8, 1963 [Oct. 12, 1962], No. 39594/63. Heading D1F. In a thread-waxing device wherein the thread moves across, and is pressed by guides against, the end face of a rotated ring of wax, advance of the ring towards the thread occurs in correspondence with the consumption thereof so that, inter alia, the angle of approach of the thread to the face remains constant and, therefore, a uniform coating of wax is applied to the thread. In the apparatus of Figs. 1 and 2, thread F engages a paraffin wax ring 1 which is mounted on a bolt 3 for rotation by a motor 4 and is urged by a spring 5 against rounded surfaces 6a of a pivoted counter-holder 6 urged by a spring 14 against a stop 16. The holder 6 carries guides 10, 11 and 12 which may be adjustable and are off-set in relation to the ring face to press the thread thereagainst. The holder is pivoted against the spring 14 to enable replacement of the ring. In a modification, Fig. 4, thread F is guided eccentrically over the face and the ring is advanced by one arm 17b of a spring-loaded lever 17 rotation of which finally closes adjustable contacts 19 and 22 to operate a signal lamp 21 giving warning of the need to replenish the wax. In the apparatus shown in Fig. 5, a mounting 29 providing thread guides, as at 24, is connected with the counter-holder 23 through a joint 28 and drawn theretowards by a spring 30: the positions of the guides are individually or collectively adjustable, as by a micro-screw 25. The motor 4 and ring 1 are mounted on a lever 26 which is pivoted about a bolt 27 to enable replacement of the ring.
Patent GB-863309-A (GB)
Title: Improvements in or relating to the curing of sulphur vulcanizable rubbers
IPC: C08L21/00
Filed: 1957-06-03
Abstract: 863,309. Curing rubbers. B.B. CHEMICAL CO. Ltd. June 3, 1957 [June 11, 1956], No. 39646/60. Divided out of 863,308. Classes 2(6) and 70. A solid sulphur-vulcanizable rubber is cured by mixing it with a substantially infusible reaction product of PbO and a thermosetting, oil-soluble alkali-catalysed condensate of an aldehyde (more than 1 mol.) and a phenol (1 mol.) having a substituent containing at least 3 C atoms, and applying heat. The PbO-resin reaction products, prepared as described in Specification 863,308, may be milled with the rubbers in known manner to give compositions which may be moulded or extruded and which, when cured, are protected from attack by ultra-violet light and are more heat stable. In Example (3) comparative results are given of milling, moulding and curing mixtures of C black-filled rubbers with various additives, the rubbers being butadiene-styrene and -acrylonitrile copolymers, polychloroprene and natural rubber, and the additives being pphenylphenol-aldehyde resin with or without PbO and with or without stearic acid; PbO-pphenylphenol-formaldehyde reaction product with or without stearic acid; and MgO-pphenylphenol-formaldehyde reaction product.
Patent GB-1412548-A (GB)
Title: I-n-s-alpha-substituted-omega-aminoacyl-neamine or ribostamycin and the production thereof
IPC: A61P31/04
Filed: 1973-08-22
Abstract: 1412548 Neamine and Ribostamycin derivatives MEIJI SEIKA KAISHA Ltd 22 Aug 1973 [25 Aug 1972] 39735/73 Heading C2C A process for the production of a 1-N-((S)-α- substituted - # - aminoacyl) neamine or -ribostamycin of formula (the symbol S refers to the steric configuration), wherein R is H or #-D-ribofuranosyl of formula R 3  is OH, NH 2  or NHR 4  in which R 4  is acyl, and n is 1 to 4, comprises subjecting an O-((S)-α- substituted-# -aminoacyl)-neamine or -ribostamycin of formula wherein R<SP>1</SP> is H or a #-D-ribofuranosyl group of formula R 1  and R 2  are each H or an amino masking group selected from acyl, alkyloxycarbonyl, aralkyloxycarbonyl, and aryloxycarbonyl or R 1  and R 2  together form a phthaloyl group, R 3  is -OH, -NH 2  or -NHR 4 ; and Y is H or a hydroxyl-masking group, to the action of a basic medium to produce an acyl-migration product of the formula and converting the masking groups R 1  and R 2  into hydrogen atoms and the hydroxyl-masking group into a hydrogen atom when said masking groups remain in the acyl migration product. The process may be carried out by reacting 1 molar proportion of neamine or ribostamycin with 4 molar proportions of trifluoroacetic acid so that each of the 4 amino groups in the neamine or ribostomycin molecule is protected with a trifluoroacetic acid group. The resulting salt is esterified with an (S)-α-substituted-#- amino acid derivative of formula wherein R<SP>1</SP> 1  and R<SP>1</SP> 2  form a phthaloyl group, R 3  is -OH, -NH 2  or -NHR 4  in which R 4  is acyl, to prepare an O-(S)-α-substituted- #-amino acylated neamine or ribostamycin, which compound is then treated with a basic medium to produce the acyl-migration product of the invention. The preferred basic medium is hydrazine hydrate, and preferred acyl-migration products are 1 - N - ((S) - α - hydroxy - # - amino - nvaleryl) - ribostamycin, 1 - N - ((S) - α - hydroxy- # - amino - n - butyryl) - neamine, 1 - N - ((SR)- α - hydroxy - # - amino - n - propionyl) - ribostamycin, and 1 - N - ((S) - α - hydroxy - # - aminon-propionyl)-ribostamycin.
Patent GB-1184245-A (GB)
Title: Improvements in Gas Discharge Lamp Circuits
IPC: H02M9/06
Filed: 1967-09-01
Abstract: 1,184,245. Supply systems for discharge lamps. K. SHUMACHER, and E. SHUMACHER, [trading as KLIMSCH & CO.]. 1 Sept., 1967 [2 Sept., 1966], No. 40187/67. Heading H2H. A Xenon lamp 3 is fed with pulses of A.C. by means of the circuit shown, in which the A.C. supply 1 is of low frequency e.g. mains supply, and a high impedance choke 2 saturates and unsaturates at a predetermined voltage to pass current through the lamp for a corresponding portion of each half cycle of the supply 1, Fig. 2 (not shown). The choke 2 may have a core of ferro-silicon alloy which saturates at a low field intensity and produces in the described circuit a current pulse through the lamp lasting for about 30 degrees of each half cycle. Alternatively the choke may have a conventional core, the choke and/or the voltage of supply 1 being chosen to produce current pulses through the lamp. A high voltage and/or high frequency starting circuit 4, 5, 6 is provided. A three phase arrangement is envisaged with the three lamps constituted by different arcs in a common discharge unit.