baber/WOPTO huggingface dataset:
Patent GB-1476553-A (GB)
Title: Gas turbine
IPC: F01D9/04
Filed: 1975-05-13
Abstract: 1476553 Gas turbines WESTINGHOUSE ELECTRIC CORP 13 May 1975 [14 May 1974] 20102/75 Heading F1T A gas turbine comprises a rotor 16 within inner and outer coaxial casings 14, 12 and carrying blades 18, 20 within ring segments 46 which together with the shroud portions 34 of stationary blades 22, 24 are secured by arcuate support segments 44 which engage tracks 45, 51 in casing 14 and tracks 49 in shroud portions 34 and ring segments 46 to permit free expansion and contraction of the support segments, the casings 14, 12 being separable into upper and lower parts B, A, Fig. 6, and the support segments at the junction being fixed on the inner casing by locking plates 59 which engage grooves 61 in the support segments 44. Remote from the junction the support segments on the upstream end of shroud portions 34 and on the downstream end of ring segments 46 are restrained by lock plates 53, 50 respectively, whilst those at the downstream end of shroud portion 34 are restrained by bolts 48, plates 50 seating in notches (not shown) in ring segments 46. The gaps betwen circumferentially adjacent ring segments 46 are sealed by plates (not shown), whilst annular seals 43 are disposed between axially adjacent inner casings 14.
Patent GB-220795-A (GB)
Title: Improvements in apparatus for cutting bevelled edges on cards, cardboard, picture mounts and the like
IPC: B26D3/02
Filed: 1923-08-07
Abstract: 220,795. Peters & Co., Ltd., G. D., and Walpole, G. S. Aug. 7, 1923. Traversing-cutter apparatus.-Relates to apparatus for cutting the bevelled edges on cards, of the type in which a loose manually-operated blade is guided by an inclined block with inclined guiding means to co-operate with a dead knife fixed parallel with the surface of the table. According to the invention the dead knife 3 is secured at an angle to the front of the table 1 and the movable blade 4 is guided by a projecting rib 8 attached to the blade engaging an inclined slot 5 in the inclined block 6. This latter bridges the table 1 and contains a clamping block 2 depressed against spring pressure by cams 10 actuated by levers 12 which may be placed on the top or sides or at the rear of the block. Sliding bars 17 flush with the table top and secured in position by a clamp 19, 19<a> carry a guide 18 for use, in cutting narrow cards. The movable blade may be circular and be fitted with a shield.
Patent GB-1527287-A (GB)
Title: Monitoring materials for strains and cracks
IPC: G01N29/14
Filed: 1977-04-29
Abstract: 1527287 Acoustic monitoring UNITED KINGDOM ATOMIC ENERGY AUTHORITY 29 April 1977 [14 May 1976] 20121/76  Heading G1G A method of monitoring a material for strains and cracks comprises attaching a stress detecting member to the material in such manner, that elongation of the material imparts a tensile strain on the detecting member, transforming acoustic energy emissions from the member into electrical signals and displaying the signals on an oscilloscope. As applied to monitoring a pressure vessel, a metal sheathed mineral insulated cable is attached to the vessel surface so that tensile strain imparted thereby to the cable produces sounds picked up by acoustic transducers, one attached at each end of the cable. Alternatively, the stress detecting member comprises a metallic tube containing compacted ceramic powder. The pressure vessel may have a grid of sheathed mineral insulated cables attached thereto.
Patent GB-827414-A (GB)
Title: Improved polymerization process
IPC: C08F10/00
Filed: 1957-06-26
Abstract: Olefinically unsaturated hydrocarbons are polymerized in the presence of an inert liquid hydrocarbon diluent and a catalyst complex prepared in the presence of chlorobenzene and consisting of the reaction product of an alkyl metal, i.e. a metallic compound containing at least one alkyl group directly attached to the metal, and a compound of a metal of Group metal, and a compound of a metal of Group IVA to VIA of the Periodic Table. The olefinically unsaturated hydrocarbon may be ethylene, propylene, n-butene, isobutylene, higher alkenes containing 8 to 10 carbon atoms, butadiene, or isoprene.  The alkyl metal may be a compound of the formula R2AlX or R3Al in which R is an alkyl group containing up to 10 carbon atoms.  The exemplified catalyst is a complex of diethyl aluminium chloride and titanium tetrachloride.  The hydrocarbon diluent may be pentane, n-heptane, eicosane, kerosene, or petroleum light or heavy naphtha.  Specification 796,845 is referred to.
Patent GB-381618-A (GB)
Title: Extension ladder
IPC: E06C1/12
Filed: 1931-07-14
Abstract: 381,618. Ladders. MAGIRUS AKT.- GES., C. D. and HUMMEL, W. A., 1, Parkstrasse, both in Ulm-on-Danube, Germany. July 14, 1931, No. 20150. Addition to 380,541. [Class 20 (ii).] The side rails of the telescopic ladder described in the parent Specification are modified according to the present invention so that each comprises two hollow bars having a connecting portion which serves as a brace and which extends perpendicularly to the plane of the ladder. According to one construction, each side rail 21, Fig. 1, comprises two bars 22, 23 which are welded to the internal stiffening brace 24. The side rails of each upper section are guided by rollers 30 carried by the side rails of the section below, these rollers being journalled in bearings 31, 34 carried respectively by the side rails and brackets 34<1>. A further guiding means is provided by the overlapping engagement of the flanges 28, 29 of the side rails of adjacent sections. The brackets 341 are secured to extensions 32 of the tubular rings 33, which latter are welded to the side rails. Modified forms of side rails of somewhat similar section are also described. According to further modifications, the side rails are approximately S- or Z-shaped in cross section, one such construction comprising three hollow bars 67, 68, 69, Fig. 13, which are welded together, the part 68 constituting the central bracing. A still further form of side rail is shown in Fig. 15, in which two trapezium-shaped bars are welded to an internal brace. In this construction, the side rails 86 of the upper section are guided by rollers 84 mounted upon a rocking arm 80. This arm is carried by a bracket 81 secured to an extension of the rung 82 of the lower section. Similar rollers 90 mounted on rocking arms 87 are carried by the vertical stanchions 92 of the lower section and engage with an angle-section bar 91 secured to the section above.
Patent GB-596941-A (GB)
Title: Pre-payment gas meters
IPC: G07F15/00
Filed: 1945-08-07
Abstract: 596,941. Prepayment gas meters. WILSON GAS METERS, Ltd., G., POOLE, D. C. E., and PASHLER, J. E. Aug 7, 1945, No. 20160. [Class 27] The diaphragm valves of a prepayment gas meter also fulfil the function of the usual " autovalve " to cut off the supply when credit is exhausted, one of the valves 12 being operated from the meter crank-shaft 15 through toggle links 18, 19 whose joining pivot 20 works in a slotted guide 21. Normally, when the meter is in credit, the guide 21, under the action of a spring 23, maintains the toggle links substantially in alignment with one another. When credit is exhausted, a cam 27 turned by the prepayment mechanism lifts a rod 28 so that its cranked end 30 is brought into the plane of the tangent arm 16 to be rocked anti-clockwise thereby and, through a link 33, to retract the guide 21. The arrangement is such that the valve 12 then comes to its fully closed position simultaneously with the other valve 13, so that the meter stops working and the gas is cut off.
Patent GB-408929-A (GB)
Title: An improved vending apparatus
IPC: G07F11/02
Filed: 1932-07-16
Abstract: 408,929. Coin-freed article-delivery apparatus. RIEHMER, H., 31, Hauptstrasse, Sch÷neberg, Berlin. July 16, 1932, No. 20238. Void [Abridged as open to inspection under Sect. 91 of the Acts, July 29, 1932]. [Class 27.] Articles stored on supports released in succession.-Packeted articles 42, Fig. 2, are stored on separate trays 38 which are released successively by ratchet mechanism coupled with a manuallyoperated control by means of the inserted coin. The trays 38 are pivoted at the back of a vertical casing 2, and are provided at the front with tongues 40 which project through a slot 41 in the casing and rest on tongues 31 on a plate 30, which is slidably mounted on rods 33 and urged to the right by springs 34. The tongues 31 are of increasing length, so that the trays are released successively, allowing the articles to fall and be removed through the outlet 18 as the plate 30 moves to the right. The plate carries a rack 29 engaging a pinion 28 coupled with an escapement comprising ratchet wheels 25, 26 engaging pallets 23, 24 respectively on a pivoted arm 20, which, when rocked against a compression spring 22 and returned to its initial position, permits the escapement wheels to rotate through one step, and the plate 30, under the action of the springs 34, to advance sufficiently to release one tray. In a modification, the casing 2 is divided by a central vertical partition into two compartments containing two sets of trays which are released alternately by two sets of tongues on the plate 30. The trays are loaded through the open back of the casing 2, and are visible through a transparent cover on the outer casing 1. Coin action, mechanical-connexion.-The shoot 11 is formed with an enlarged portion which houses a disc 9 with a recess 10, and into which projects a pivoted arm 14 abutting against the arm 20. The disc 9 is mounted on a spindle 8 which carries a hand-wheel 5 outside the casing, and is limited to clockwise rotation by a ratchet and pawl mechanism 6, 7. On the insertion of a coin, the wheel 5 is rotated until the coin drops into the recess 10, continued rotation then causing the coin to abut against the arm 14 and thus actuate the arm 20. Money-receivers; exhibiting coins.-The coin passes down the shoot 12 into either of the containers 13, which are provided with inspection windows 17.
Patent GB-516793-A (GB)
Title: Improvements in electromagnetic wave signalling systems
IPC: H04H20/67
Filed: 1938-07-08
Abstract: 516,793. Multiplex systems. TENNANT, W. J. (American Optical Co.). July 8, 1938, No. 20257. [Class 40 (iv)] [Also in Group XL] In a high-frequency broadcast system covering a large area, and suitable for television, the signal-modulated carrier-wave is fed from a central station over a system of branched non- radiating transmission lines 2 and 4 through coupling impedances 3 and booster stations 6, 10 to a number of radiators 6, which are spaced to cover the broadcast area with little overlap, thus minimizing distortion due to interference. The booster stations may be automatically ,controlled from the central station by low-frequency or direct current impulse signals sent out over the transmission lines. The coupling impedances 3 serve to prevent reflection which would affect the electrical length of the transmission lines. The aerials are preferably directional and may comprise doublets with their axes at right-angles in order to minimize overlap. Other radio programmes, either sound or television, of different carrier-frequency, may be broadcast simultaneously and the programmes may also be transmitted directly over a line 8 to a receiver 9. A number of telephonic and telegraphic signals can also be transmitted over the line system on a carrier of different frequency which is modulated by sub-carriers of intermediate frequency, each of these being modulated by a signal. Reference has been directed by the Comptroller to Specification 440,143 and U.S.A. Specification 2,033,271.
Patent GB-320408-A (GB)
Title: Improvements in or relating to wire-spoke wheel building
IPC: B60B31/02
Filed: 1928-07-12
Abstract: 320,408. Pugh, J. V. July 12, 1928. Wheel-building apparatus. -Relates to a method of, and apparatus for, building wire-spoked wheels in which one set of spokes is initially tensioned by a screwing- operation and then over-tensioned by relative axial dis. placement of the hub and rim; the other set of spokes is then preliminarily tensioned by a screwing- operation, and the final predterrnined tensioning of both sets of spokes obtained by releasing the hub and rim displacing means. As shown in Fig. 1, the rim A is detachably gripped between a pair of rings a, b and the hub B centred on devices mounted coaxially with the bosses a<4>, b<4> of the rings. These devices comprise an upper spindle f<6> fitted with a sleeve i on which the hub B is clamped by a nut k, washer l, and cotter l<1>. The sleeves j rests on a hollow spindle f in the lower end of which is fixed a nut f<2> traversed by a screw g. The member f is fitted to slide, but not rotate, in a sleeve d the lower end of which is rigidly secured to the base-plate h<1>, the screw g being secured against longitudinal movement through the member d. In operation, the hub having been adjusted with respect to the rim by means of the screw g, the lower set of spokes is tensioned in the ordinary manner. The hub is then drawn down by further adjustment of the screw g so as to stress the lower set of spokes beyond their normal tension in the finished wheel. The upper set of spokes is then assembled and screw-tensioned to a degree less than that required in the finished wheel. The screw g is then turned to release the hub whereupon the excess stress in the lower spokes is automatically transferred to the other set. In a modification, the hub is fitted over, and clamped to, an extension of the member f. Fig. 7 shows a modification applied to a cycle wheel in which the hub B is clamped, by means of its bearing- cones C<1>, B<2> between the adjustable member 0 and a detachable spider O<9>.
Patent GB-124406-A (GB)
Title: Improvements in Pedestals for Colliery Corves, Tubs and the like Vehicles.
Inventor: MILNES GEORGE
IPC: B61D11/00
Filed: 1918-12-09
Abstract: 124,406. Milnes, G. Dec. 9, 1918 Vehicle-axle bearings. -A pedestal axle bearing for colliery corves, tubs, and like vehicles is furnished with a U- shaped guard b secured by a transverse split pin d, which lies against the sides of nuts e, e<1> by which the pedestal a is secured to the vehicle. The nuts are thus prevented from turning. Specification 119,600 is referred to.
Patent GB-1150872-A (GB)
Title: Improvements in or relating to Chucks
IPC: B23B31/20
Filed: 1965-05-14
Abstract: 1,150,872. Chucks. MOLINS MACHINE CO. Ltd., and J. H. SWARBRICK. 13 May, 1966 [14 May, 1965], No. 20489/65. Headiing B3B. A chuck for gripping the cylindrical shank of a cutting tool or a cylindrical workpiece comprises a cylindrical socket 3 having a tapered internal face 5 which mates with a tapered external surface of a split sleeve or collet 7 which is movable in the axial direction within the socket 3, there being provided an annular pressure chamber 13 defined by the socket 3, the shank 12 of the tool and two deformable sealing rings 14, 15, means being provided to apply pressure to the chamber 13 to cause the socket 3 to expand and means to cause the split sleeve 7 to move axially while the socket is expanded so that when the socket contracts pressure is applied radially inwards on the shank 12 which has been inserted in the split sleeve 7. The socket 3 is screwed to the spindle 2, the split sleeve 7 being joined by a ring 9 to a piston 10 which is slidable within a bore 11 in the spindle 2, a sleeve 6 which is movable in the axial direction being interposed between the body 1 of a cutter head 1 and the spindle 2. The sleeve 6 is movable to the right by hydraulic pressure admitted from a source connected to a port 26 in the lower part of the cutter head 1, and movable in the reverse direction by hydraulic fluid admitted through the port 29 from a source connected thereto. The socket 3 is provided with a thin walled barrel portion 4 which is caused to expand by admitting fluid under pressure to the chamber 13. Ports 16, 17 enable the chamber 13 to be put into communication with the valve opening 18 which is connected to a source of high pressure fluid. By opening the port 37 hydraulic fluid pressure is transmitted to the space behind the piston 10 which is forced to move forwardly to the right until the split sleeve 7 is forced home into the expanded barrel 4. The port 18 is closed to pressure and opened to tank, thus releasing pressure in the chamber 13, the barrel being thus caused to contract and in so doing closes the split sleeve 7 which thereby grips the shank 12. The sequence of operations is carried out automatically according to instructions received by a series of separate control valves or through a combined shuttle valve, the instructions being recorded on tape or other means controlling a numerically controlled machine.
Patent GB-635199-A (GB)
Title: Improvements in regulators for dynamo electric machines
IPC: H02P9/20
Filed: 1945-08-10
Abstract: 635,199. Automatic voltage control systems. NEWTON, F. Aug. 10, 1945, No. 20612. [Class 38 (iv)] Voltage regulating circuit connected across the terminals of a variable-speed alternator which feeds one or more identical parallel connected load units each in the form of a resistance in series with a reactance is so devised as to possess impedance of the same character and proportion as that of each of the load units in order to maintain a constant voltage across the resistance portion of each of the load units. As shown a motor generator 1, 2 supplies fluorescent lamps 7, each connected in series with a capacitance 9 and in parallel with a choke 8 designed to be saturated by a fraction of the supply voltage. In the regulator circuit a condenser 11 is in series with a bridge rectifier across the alternator terminals and it is arranged that a ratio, the same as that in each of the lamp circuits, exists between the reactance due to the condenser 11 and the circuit ohmic resistance according to the setting of coarse and fine variable resistors 13, 14 which are in series with the control winding 6 of the carbon pile 4 across the output of the bridge rectifier. If there is a departure from the normal operating frequency the resultant change in excitation of the control winding 6 operates the carbon pile 4 to effect the required change in excitation of the alternator 2 so that the voltage generated increases or decreases to restore the normal operating current through the winding 6 and each of the lamp circuits and therefore the rated volts across the lamps 7. The regulator circuits shown may be modified in that the condenser 11 may be in series with the resistors 13, 14 with the bridge rectifier connected across the latter and the control winding 6 across the output of the bridge rectifier. The lamp circuits may each comprise simply the lamp 7 in series with a choke in which case the regulator circuit is modified accordingly. The regulator 4, 6 may be constructed as described in Specification 544,170.
Patent GB-1070211-A (GB)
Title: Improvements relating to stability augmentation systems for craft
IPC: B64C1/00
Filed: 1964-05-19
Abstract: 1,070,211. Controlling aircraft. UNITED AIRCRAFT CORPORATION. May 19, 1964 [May 31, 1963], No. 20656/64. Heading B7G. [Also in Divisions G3 and H3] An aircraft stabilizing system comprises a control surface actuator 20, a device, e.g. rate gyro 12 producing an error signal representing the sense and rate of aircraft motion about an axis; a circuit 14 which shapes the error signal to produce a compensating signal, so that the error signal and compensating signal when applied together to the actuator effect counteraction of the motion, and a circuit 28 which detects when a rate of motion above a predetermined value persists, and then removes the compensating signal. By this means, random motion about the axis is detected and counteracted, but when the pilot demands a change in attitude, the persistent resulting rate of motion is detected by circuit 28, and the error signal fed to servo-amplifier 16 becomes a simple damping signal. When the pilot's demand ceases, circuit 14 again produces shaped compensating signals after a time delay, this delay being limited by a circuit 26. A transducer 22 producing a position feedback signal for the control surface actuator servo is continuously monitored by a circuit 24 so that if the transducer fails, the servo-amplifier 16 is switched-off (see Division G1, and Fig. 3, not shown). The output from gyro 12 is in the form of an A.C. signal in phase or 180 degrees out of phase with a reference voltage, depending on the sense of the motion. The circuit 14 passes this signal on to amplifier 16, and also passes the signal to a transformer having an additional secondary winding connected to a capacitor through demodulating diode bridges. When the input signal changes, this secondary winding is effectively temporarily short-circuited, so the compensating signal at the normal secondary winding builds up only after a time delay. The limiting circuit 26 comprises biased diodes limiting the charge on the capacitor. In circuit 28, the signal from the rate gyro is demodulated, and integrated by a resistance-capacity circuit, the output of which is applied to the bases of transistors which are normally biased to the non-conducting state. When the integral builds up to a predetermined value of either sense, one or other transistor conducts, and provides an A.C. short across the primary winding of the transformer in circuit 14, thus eliminating the compensating signal so long as the pilot demands an attitude change.
Patent GB-874332-A (GB)
Title: Improvements in safety electric primers for mines
IPC: F42B3/18
Filed: 1958-06-27
Abstract: 874,332. Blasting fuzes. MONTECATINI SOC. GENERALE PER L'INDUSTRIA MINERARIA E CHIMICA. June 27, 1958 [July 29, 1957], No. 20666/58. Addition to 842,043. Class 9(1). An electric fuze, as in the parent Specification in which a safety element shortcircuiting the electric supply leads is moved out of the short-circuiting position before the fuze is fired, is rendered additionally safe by a gap in one of the leads between the fuzehead and the short-circuit, the gap being closed by the safety element when it leaves the short - circuiting position. The two leads 8 to the fuzehead 1 are short-circuited by a metal core 2 in contact with a metal conductor 13 grounded by the casing 7. One lead 8 is interrupted between the parts 14, 15. The core 2 is mounted on a pin 11 supported by a wire 12 connecting conductors 3, 4 independent of the firing circuit. On passing a current through the circuit 3, 4, 12, the wire 12 fuses and spring 6 pushes the core 2 towards the fuzehead 1 until it bridges the gap between the parts 14, 15 and thus arms the fuze.
Patent GB-1150616-A (GB)
Title: Borehole Liquid Excluder
Inventor: JOHNSON MALCOLM OSCAR
IPC: E21B47/01
Filed: 1967-01-11
Abstract: 1,150,616. Acoustic well logging. MOBIL OIL CORP. 11 Jan., 1967 [6 Sept., 1966], No. 20703/68. Divided out of 1,150,615. Addition to 1,150,615. Heading H4D. An attachment for filling the space between a borehole logging sonde and the borehole wall in the energy radiating and/or receiving area of the sonde provides a transmitting medium of known characteristics and is releasably attached by, for example, mechanically weak links to the sonde to permit the sonde to be moved upwardly if the attachment becomes lodged in the hole but the sonde is supported within the attachment in such a manner as to prevent its detachment whilst the whole is being lowered into the borehole. The sonde may radiate acoustic energy at a frequency of, for example, 1 megacycle, and the attachment may comprise an oil-filled chamber 50 formed by two rigid brass members 19, 20 and a resilient rubber member 24. The members 19, 20 are attached to the sonde by easily shearable pins 25, 26, and a collar 30 attached to the sonde sits on a shoulder 31 in the lower member 20. The rubber member 24 is wired across the two members in a recess formed by end extensions to protect it from mechanical damage during movement.