baber/WOPTO huggingface dataset:
Patent GB-1195834-A (GB)
Title: Improvements relating to Control Systems for Nuclear Reactors
Inventor: DEAN JOHN RAYMOND
IPC: G21C7/14
Filed: 1966-06-29
Abstract: 1,195,834. Controlling reactors. A. REYROLLE & CO. Ltd. 28 Sept., 1967 [29 June, 1966], No. 29214/66. Heading G6C. A driving system for inserting a control-rod 10 vertically upwards from below into a control channel 12 of a reactor core 11 comprises a drive-rod 14 secured to the control-rod 10 and carrying a rack 17 in mesh with which is a pinion 18 whose shaft 19 is coupled via a magnetic clutch 20 with an electric motor/brake unit 21 by which the control-rod 10 can be raised and lowered slowly or held stationary in a selected position when required during normal service, with the clutch 20 energized. The driverod 14 is engaged by rollers 15 orientated in several planes to guide the rod 14 throughout the full distance of its travel. In the event of an emergency requiring the rapid shut-down of the reactor, the clutch 20 is disengaged to allow a gravity-operated emergency actuator mechanism to take charge and insert the control rod 10 very rapidly into the reactor core. This mechanism comprises a driving mass 25 coupled by a flexible chain 26 and pulley system 28 to a bracket 29 at the lower end of a tail-rod 16 attached to the bottom end of the drive-rod 14. One end of the chain 26 is secured to a fixed anchorage 30, from which the chain passes down, around a first pulley 28 pivotally mounted on top of the mass 25, up and around a second pulley 28 pivotally mounted on the fixed anchorage 30, and down again to the tail-rod bracket 29 to which the other end of the chain is attached. The velocity ratio of the chain and pulley system 26, 28 is in excess of unity and this, together with the weight of the mass 25, is chosen to give an upward acceleration of the control-rod 10 in excess of 1 g., e.g. 1.5 g., when the clutch 20 is released and the mass 25 descends under gravity. A stop 31 is provided to limit the downward movement of the mass 25. A suitable shock-absorbing or damping device is provided to arrest the motion of the mass 25 and/or the control-rod assembly 10, 14, 16 at the end of the travel. One or more pneumatic cylinders may be provided for this purpose, acting on the tail-rod 16. In addition, the driving mass 25 may be constructed of several portions which telescope successively one within another as they successively engage the stop 31. In a modified construction, the motor/brake unit is coupled through the clutch 20 to the pulley 28 mounted on the fixed anchorage 30. The pulley is formed as a sprocket whose teeth are in engagement with the chain 26. In a second embodiment (Fig. 2, not shown), the motor/brake unit is mounted below the control-rod assembly and drives a winch drum round which is wound a flexible chain or cable whose upper end is connected to the lower end of the tail-rod.
Patent GB-1513818-A (GB)
Title: Method of preparing sulphur
IPC: B01D53/50
Filed: 1975-07-11
Abstract: 1513818 Sulphur from H 2 S SOC NATIONALE DES PETROLES D'AQUITAINE 11 July 1975 [11 July 1974] 29249/75 Heading C1A A method of preparing sulphur from an acid gas containing hydrogen sulphide comprises introducing a mixture of air and acid gas into a combustion furnace so that 1/3rd of the hydrogen sulphide present is converted into sulphur dioxide, and then reacting the sulphur dioxide with the remaining hydrogen sulphide in a catalytic converter to obtain elemental sulphur, wherein the acid-gas and air are pre-heated to a temperature sufficient to ensure that the temperature within the combustion furnace is within the range 1070C. to 1370C. The hydrogen-sulphide concentration in the acid gas is, as a preliminary step, increased to 40-60%, or more preferably to 90%, of the acid-gas content by extracting from the acid gas other non-reactive diluents, chiefly carbon dioxide.
Patent GB-1353066-A (GB)
Title: Method of manufacturing a fabric having a relief pattern
IPC: D04B1/10
Filed: 1971-06-23
Abstract: 1353066 Knitting VYZKUMNY USTAV PLETARSKY 23 June 1971 [14 Dec 1970] 29332/71 Heading D1K [Also in Division B6] A fabric having a relief pattern is produced by forming a fabric whereof one portion contains yarn of one shrinkability and another portion contains yarn of another shrinkability, the portions being shaped to form complementary zones of a pattern, and shrinking the fabric so that the portions together form a pattern having ground and relief zones. Preferably the more shrinkable yarns are selected from yarns containing filaments or staple fibres prepared from copolyester of polyethylene terephthalate and polyethylene isophthalate. The less shrinkable yarns are preferably mechanically textured synthetic filament yarns. The yarns may have different dye affinities and the fabric may be dyed. The dyeing process may utilize a dye having a substantially different affinities for the complementary portions. In a typical example a knitted fabric was produced on a knitting machine using for the red courses a yarn consisting of 40% copolyester fibre based on polyethylene terephthalate and polyethylene isophthalate, and 60% of another copolyester fibre and for the plain course a polyamide textured yarn. The fabric was then shrunk by e.g. steaming for 30-60 seconds, boiling for 10 minutes or shrinking may be carried out in the dyeing bath during the dyeing process. The fabric was then scoured in a bath containing a nonionic ethylene oxide condensate and sodium carbonate at 60C, then dyed in a dye bath at a temperature initially 40C, slowly increasing to the boiling point and then reducing after 1-1.5 hours. The fabric is then softened with a cationic lubricating agent, hydroextracted and dried.
Patent GB-750186-A (GB)
Title: Improvements in shaft mountings for sheaves pulleys, sprockets and other machine elements
Inventor: BROWN LEONARD GEORGE
IPC: F16D1/096
Filed: 1953-10-23
Abstract: 750,186. Securing pulleys &c. to shafts. ZERNY ENGINEERING CO., Ltd. July 26, 1954 [Oct. 23, 1953], No. 29374/53. Class 80(2) A pulley, sheave, sprocket &c. has a hub 2 taper bored at each side to receive a pair of bushes 4, 5 which are each tapered, split and contractile, bored to fit a shaft and drawn together to secure the sheave &c. on the shaft by screws 7 having threaded engagement with at least one of the bushes. As shown, only the bush 5 is tapped to receive the screws 7, but in a modification, (Fig. 2 (Provisional) not shown)), both bushes are tapped to receive screws having differential threads. These screws are turned in one direction to draw the bushes together and clamp them to the shaft, and in the other to force the bushes apart so that the sheave &c. is no longer secured to the shaft,. In the form shown, Woodruff keys 3 also connect the hub 2 and bushes 4, 5. The two tapered bores in the hub 2 may meet at the centre to define a double cone, or may be separated centrally by an inwardly extending web leaving sufficient room for the shaft and apertured to receive the screws.
Patent GB-361508-A (GB)
Title: Hospital chart and bed-card holder
IPC: B42F17/18
Filed: 1930-10-01
Abstract: 361,508. Wall and like pockets. TALLEY, C. M., 2316, University Avenue, New York, U.S.A. Oct. 1, 1930, No. 29389. [Class 52 (v).] A holder for a hospital chart and bed card comprises a main pocket 10 for the chart and a smaller pocket for the card formed by a frame 18 secured to the front of the pocket 10; the top of the front of the pocket 10 is cut away at 11 to allow of easy access to the chart and the holder is provided with means, e.g. a hook-like member 12, by which it may be secured to a bed rail &c. The member 12 may be resilient and may be fixed in position by a bolt 16 passing through the back of the holder and one of a series of holes in the member 12 at the rear of which a wing nut engages the bolt. The frame 18 may be provided with a glass or other transparent window 19.
Patent GB-373045-A (GB)
Title: Improvements in or relating to diving apparatus
IPC: B63C11/44
Filed: 1931-10-22
Abstract: 373,045. Diving-apparatus. DAVIS, R. H., 187, Westminster Bridge Road, London. Oct. 22, 1931, No. 29398. [Class 68 (ii).] In diver's apparatus of the kind comprising a submersible decompression chamber in combination with a surface decompression chamber fitted, for example, on the deck of a ship, a series of surface decompression chambers communicating with one another is provided. The chamber 7, which is of the kind described in Specification 294,749, [Class 68 (ii), Subaqueous buildings &c.], has in its bottom end a manhole door opening inwardly. The chamber is coupled to the surface decompression chamber 4 by screws 9 attached to a ring 13 in which is fitted a manhole door opening inwards. By means of these doors the occupants of the submersible chamber 7 enter the central compartment 1 of the chamber 4, and eventually pass into the chambers 2, 3 to complete the decompression and emerge into the open air; doors 21, 22, 23 are provided for these purposes.
Patent GB-173905-A (GB)
Title: Improvements in or relating to thermally actuated electric switches
IPC: H01H37/66
Filed: 1920-10-18
Abstract: 173,905. Baker, P. W. Oct. 18, 1920. Thermal interrupters; partly electromagnetic for flash advertising, consist of a bi-metallic spring strip 3 which carries a heating coil 4 and, at its free end, a magnetic plate 3a provided with upper and lower contacts for engagement with fixed contacts 5, 6; the strip is moved in one direction thermally and in the other by the attraction of a permanent magnet 2 whereby a quick action is obtained. The circuit arrangements for the alternate illumination of two lamps x, z are shown in Fig. 1, in which the main circuit is closed through the lamp x, the terminal 5, and the strip, and a shunt circuit through the heating coil and the lamp z, the current in the shunt circuit being inadequate to light the lamp z. The strip heats up and, after a time, springs away from the contact 5 against the attraction of the magnet into engagement with the contact 6, lighting up the lamp z and short-circuiting the heating coil so that the strip bends back until it comes under the influence of the magnet and is rapidly drawn back to the original position. The arrangement may be adapted to a single circuit, in which case the heating coil carries the main current.
Patent GB-939198-A (GB)
Title: Improvements in or relating to cloth examination boards or tables
Inventor: BONSER ALFRED WALKER
IPC: B65H26/00
Filed: 1961-08-16
Abstract: 939,198. Measuring cloth. FINE SPINNERS & DOUBLERS Ltd. Aug. 15, 1962 [Aug. 16, 1961], No. 29491/61. Class 106 (2). Cloth a leaving an inspection board A rotates a measuring roller B which drives a counter C via gearing b<SP>1</SP>, b<SP>2</SP> and a clutch b. The clutch b is controlled by an electromagnet and is disengaged if there is no cloth between the board A and a pivoted detecting arm e which operates a switch D in the circuit containing the electromagnet.
Patent GB-1091909-A (GB)
Title: Locating device for repeatered cables
Inventor: OSWALD THOMAS
IPC: H04B17/40
Filed: 1964-07-23
Abstract: 1,091,909. Repeaters. SUBMARINE CABLE Ltd. July 19, 1965 [July 23, 1964], No. 29667/64. Heading H4R. In a communication system incorporating a number of repeaters each repeater includes a noise location network, comprising a resonant circuit of inductors and capacitors, to provide a gain change at a frequency within the useful communication channel, the frequency of the peak differing for each repeater with compensating gain changes being introduced at the terminal station. The gain change at the repeater may be a dip in the gain frequency characteristic caused by a simple parallel resonant circuit in series with the signal path, Fig. 4 (not shown), or preferably a bridged T circuit with resonant elements which maintains a constant impedance, Fig. 5 (not shown), each dip caused by a repeater circuit being compensated by a complementary network at the terminal station. Alternatively a network may be employed at each repeater, Fig. 7, which gives a dip of trapezoidal form, Fig. 8 (not shown), and if the frequencies of the dips at each repeater are suitably chosen, as derived mathematically in the Specification, the total effect of all the " dip " circuits is a constant attenuation over the whole band, which may be compensated by providing an increase in gain at the terminal station. Faulty repeaters introducing an excessive amount of noise in the system are identified by noting those parts of the noise spectrum which have received the additional attenuation due to the " dip " circuits in repeaters following the faulty repeater.
Patent GB-722580-A (GB)
Title: Drawing press
IPC: B21D11/02
Filed: 1952-11-24
Abstract: 722,580. Stretch-bending. OECKL, O. Nov. 24, 1952 [Dec. 3, 1951; Dec. 3, 1951; May 9, 1952], No. 29721/52. Class 83 (4). In a stretch-bending machine a die 3 is carried on a piston 2 rotatable and displaceable on a cylinder 1 and the clamps 7 are rotatably mounted on arms 5 pivoted to the cylinder 1 and radially moved by pressure cylinders 9 or by motor-driven screw gearing, Fig. 5 (not shown). The die may be supported on a table 31 inclined by a piston 33 in a fluid cylinder 34. The clamps have zig-zag gripping faces and are operated by wedge bars, Fig. 8, not shown, or wedge surfaces, Fig. 7, not shown, by fluid cylinders. In use, the die may be rotatably adjusted in the cylinder 1 and the clamps may be inclined to'the die.
Patent GB-988606-A (GB)
Title: Flexible barges
Inventor: STANLEY DENIS THEODORE JOHN
IPC: B63B35/28
Filed: 1962-08-02
Abstract: 988,606. Flexible barges. DRACONE DEVELOPMENTS Ltd. July 26, 1963 [Aug. 2, 1962], No. 29733/62. Heading B7A. A barge (Fig. 1) having a closed tubular flexible envelope 1 with a closable filling and emptying aperture 4, 5 at each end has a flexible membrane 2 joined to the interior surface of the envelope along a continuous line 3 which when the barge is completely extended by filling it with a fluid cargo, lies in a plane dividing the interior volume of the barge into two parts, one on either side of said plane. When the barge is filled from 4 the membrane lines the left-hand end of the barge as shown at 6; when filled from 5 the membrane is driven to position 7. Whereas in Fig. 1 the line 3 lies in a plane normal to the longitudinal axis of the barge, in Fig. 2 it lies in a plane more parallel to said axis. Specification 883,813 is referred to.
Patent GB-572534-A (GB)
Title: Improvements in or relating to machine and like automatic guns of the belt feed type
IPC: F41A9/54
Filed: 1939-11-09
Abstract: 572,534. Automatic guns. DOBREMYSL, J. Nov. 9, 1939, No. 29734. [Class 92 (ii)] The cartridge-belt feeding device is mounted on a stationary part which does not participate in the recoil movements of the gun as a whole. In the form shown, a belt feed-box 3 is supported by posts 4 from a cradle 2 on which the gun 1 slides during recoil. Specification 515,423 is referred to.
Patent GB-232550-A (GB)
Title: Improvements in or relating to calendars
IPC: G09D3/00
Filed: 1924-12-10
Abstract: 232,550. MoÚ, P. van. April 18, 1924, [Convention date]. Clamping-devices.-A perpetual calendar comprises a tablet 1 showing the dates for a month and a sliding U-shaped strip 2, showing daynames, slidably mounted on the upper edge of the tablet. As shown combined with a writing pad of the kind described in Specification 196,426 the strip 2 takes over the edge of a plate forming the clamping-bar of the writing-pad, and is clamped in any position by nuts 5. To reduce the length of the strip day names may be printed above the first and last columns on the table so as to become visible when the strip is in its extreme positions. For marking particular dates holes are made above each date adapted to take a pin from which hangs a frame that encloses the date.
Patent GB-617540-A (GB)
Title: Improvements in or relating to devices for adjusting or overhauling clutches
IPC: F16D13/71
Filed: 1946-10-05
Abstract: 617,540. Supports for adjusting clutches. DENT, J. W. Oct. 5, 1946, Nos. 29744/46 and 26725/47. [Class 61 (ii)] A device for adjusting or overhauling clutches comprises a platform which may be formed of three bowed metal strips 22 secured together by rivets 26 to form a three-armed frame open at the centre to which platform may be clamped by bolts 46 &c., the face 47 of a clutch casing 37 enabling the clutch fingers 33 to be adjusted by the use of a stepped gauge 51 supported on a plate 20 welded to the platform, the nuts 38 on the finger supports being rotated to set the finger ends 41 level with one or other of the steps 51 according to the make of clutch; packing 45 under the spring pressure plate 32 takes the position normally occupied by the clutch plate fully let in, For dismantling the clutch an additional three-arm bridge 61, Fig. 6, welded to a disc 60 is adapted to span the clutch casing 37 supported with interposed packing 65 on the platform and the pressure of the clutch springs 34 on the pressure plate 32 is relieved by a headed pressure screw 66 working in a tapped hole in the plate 20 whereupon the nuts 38 may be readily removed.
Patent GB-803353-A (GB)
Title: Improvements in and relating to carburettors
IPC: F02M17/16
Filed: 1956-09-29
Abstract: 803,353. Carburetters. LAUDER, A. E. Sept. 29, 1956, No. 29787/56. Class 7(3) A carburetter comprises a mixing chamber which converges to an outlet, means for supplying air in a plurality of fine streams to the mixing chamber so as to be directed towards the outlet, whereby a streamline or non-turbulent flow through the mixing chamber is obtained and means for supplying finely atomized fuel to the air as it passes through the chamber. The fuel used may be gasoline stove oil and other relatively heavy fuel oils. An object of the invention is the provision of a carburetter which is particularly suitable for atomizing relatively heavy fuels. In Fig 1, the air enters through openings 17 controlled by a choke ring 18 controlled by a cable (not shown). It passes by way of a grid or plate 14 having passages 26 therein to an outlet 11. The fuel is supplied by a rotating nozzle 41 which is rotated by the bladed disc 44 which is worked by the air flow. It is stated that the nozzle may be rotated by an electric motor. The fuel forms a thin layer over the surface of the cup 34 and is discharged from the rim of the cup in a very finely divided state. The passages 26 are preferably longer than their diameter. The plate may be relatively thick or formed with a boss at each passage. One or more very fine conical screens may be substituted for the plate 14. If more than one screen were used one would be superimposed on the other. The plate may be formed with relatively large holes. Fig. 6 shows a portion of one form of plate which may be used. One or more layers of very fine wire screen or gauze may extend over either or both surfaces of the plate. In Fig. 7, the nozzle is rotated by an electric motor 80. The cup 34 has a lip 82 and a plurality of fine holes 83 for the fuel. The means for dividing the air into a plurality of streams may be as described previously or may be as shown. An air filter 94 may be provided.
Patent GB-243737-A (GB)
IPC: D06P3/40
Filed: 1925-11-25
Abstract: Basic monoazo dyestuffs containing a sulphamino group in the diazo component are used for dyeing cellulose esters and ethers. In an example acetate silk is dyed a fast golden yellow in a bath containing the hydrochloride of the dyestuff 4-aminobenzene-1-sulphamide --> amino-cresol ether.  Other dyestuffs specified are 2-nitraniline-4-sulphamide --> m-toluidine for orange tints and 4-aminobenzene-1-sulphamide --> a -naphthylamine for reddish-orange.ALSO:Cellulose esters and ethers are dyed with basic monoazo dyestuffs containing a sulphamino group in the diazo component. In an example acetate silk is dyed in a bath containing the hydrochloride of the dyestuff 4-aminobenzene-1-sulphamide-->amino-cresol ether and after half an hour, during which the temperature has been raised to 70 DEG  C, ammonium acetate is added and the dyeing continued for a further half hour when the material, dyed a fast golden-yellow, is rinsed and dried.  Other dyestuffs specified are 2-nitraniline-4-sulphamide--> m-toluidine for orange tints and 4-aminobenzene-1-sulphamide-->a -naphthylamine for reddish-orange.
Patent GB-842473-A (GB)
Title: Improvements in or relating to sound receiving apparatus
IPC: B02C23/00
Filed: 1957-09-23
Abstract: 842,473. Measuring sound intensity. MILLTRONICS Ltd. Sept. 23, 1957 [Sept. 26, 1956], No. 29843/57. Class 40(7). [Also in Groups XXXV and XXXVIII] In apparatus for producing an electrical signal proportional to the sound emitted by a selected source the sound being mixed with extraneous sound from other sources, a first microphone generates a signal primarily proportional to sound from the selected source, a second microphone generates another signal proportional to the extraneous sound and the two signals are compared to give a difference signal proportional only to sound from the selected source. In Fig. 2, the grinding mill 1 is to be controlled according to the sound generated by grinding, this parameter being a suitable measure for optimum mill operation. Microphone MS1 is located near mill 1 to detect grinding sound, but it also picks up noise from the associated machinery and from adjacent mills. Microphone MC2 is positioned near mill 2 to detect primarily the noise extraneous to mill 1. Fig. 3 shows the circuit by which the signals from the two microphones are mixed: MS1 signal is passed through a frequency selective amplifier V 1A , V 1B  and applied to integrating circuit V 3A , V 3 B, C 7 . MC2 signal passes through a similiar frequency sensitive amplifier to integrator V 4A , V 4a , C 8 . The capacitors C 7 , C 8 , which are charged with opposite polarity, form a bridge circuit together with resistors R 7 , R 8 , the output of which is applied to V 5 B through a long time constant, low pass filter P 3 , C 9 , C 10 . The output signal is used to control the ore feed and the water feed to the mill. In alternative embodiments, sound screens may be erected between adjacent mills to assist the microphone selectivity and different arrangements of microphones may be used, e.g. the compensation microphone for one mill may act as the signal microphone for another and vice-versa.
Patent GB-1044478-A (GB)
Title: Improvements relating to screens
Inventor: CARTER ALASTAIR HOWROYD
IPC: E06B7/084
Filed: 1964-07-27
Abstract: 1,044,478. Screens. CARTER ENGINEERING CO. (TAMWORTH) Ltd. May 28, 1965 [July 27, 1964], No. 29853/64. Heading A4U. A slot screen comprises individually adjustable slots 13 with their axes vertical and each slot has a cylindrical pivot piece 14 which enters into a recess formed in the adjacent member of a pair of spaced parallel members 10, 11. At least the two end slots 13 have pieces 14 provided with a peripheral groove into which projects through the member 10 or 11 a peg 17 to prevent relative outward movement of the members 10 and 11. Otherwise the members 10, 11 may form part of a closed frame. The lower member 11 may have lateral extensions 12 to provide stability when the blind is in use standing on a support surface.
Patent GB-441645-A (GB)
Title: Improvements relating to dinner wagons and the like
IPC: A47B31/04
Filed: 1934-10-18
Abstract: 441,645. Dinner wagons. OWEN, H. A. W., c/o British Castors, Ltd., Albion Works, Dartmouth Street, Birmingham. Oct. 18, 1934, No. 29860. [Class 52 (iii)] In a dinner wagon having rule-jointed folding end frames b held in extended position by upper and lower shelves d pivoted to the back frame a the shelves can be folded to lie vertically, in contact with each other and the end frames can then be folded inwards.