baber/WOPTO huggingface dataset:
Patent GB-739663-A (GB)
Title: Improvements in ventilating grilles
IPC: F24F7/00
Filed: 1954-03-16
Abstract: 739,663. Ventilating grilles. AKTIEBOLAGET SVENSKA FLAKTFABRIKEN. March 16, 1954 [March 17, 1953], No. 7610/54. Class 137. A ventilating grille for exhausting high velocity gaseous mediums at a low noise level comprises a front plate 1 having openings 2 which are extended rearwardly to form channels 4 the outer and side wall members of the channels being formed by the walls of a collar 18 which is formed of two U-shaped parts joined by lugs 15 and which encompasses the openings 2 to form inward extensions of the outer edges of the openings. The inner sides of the channels 4 are formed by adjustable damper blades 7 which form extensions of the inner edges 3c of the openings and have bent parts 7a which are pivotally held between the curved underfaces of the edges 3c and the rounded outer edges of a U-shaped member 9 which is fastened to the collar member 18 by the lugs 15. The flanges 7b of the damper blades 7, directed toward one another, have their outer edges clamped by a nut 10 which is threaded on to a bolt 11 journalled at its upper end in the plate 1, its lower end, journalled in, and passing through, the U-shaped member 9, being provided with a cog-wheel 12 drivable by a chain 13 to move the nut along the bolt for adjusting the inclination of the dampers. The cogwheel 12 is covered by a hood 17 fastened to the member 9 by a bolt 16 and the chain 13 passes through openings formed in the collar 18 and the plate 1.
Patent GB-894419-A (GB)
Title: Improvements in or relating to paper for doors of buildings
IPC: B44C1/10
Filed: 1960-03-04
Abstract: 894,419. Paper for doors. SWARBRICK, J. Jan. 11, 1961 [March 4, 1960], No. 7663/60. Class 96. Paper for covering a door of a building has a decorative design screen-printed on one side, and the other side marked with parallel guidelines to facilitate trimming the paper to the width of the door to which it is to be adhered. The paper may be varnished after printing.
Patent GB-1484105-A (GB)
Title: Nuclear reactor fuel element
IPC: G21C9/00
Filed: 1975-02-24
Abstract: 1484105 Fuel elements KRAFTWERK UNION AG 24 Feb 1975 [20 March 1974] 7698/75 Heading G6C  The framework of a multi-pin fuel element comprises two end members connected by elongate members, e.g. control rod guide tubes, the connection between each elongate member and at least one of the end members being adapted to be released when a predetermined axial pressure load is exceeded to permit relative displacement of these parts axially of the fuel element. Such a pressure overload may occur due to a fracture of a coolant conduit leading to or from a steam generator resulting in a considerable increase in the speed of the coolant within the reactor core. In one embodiment, shown in Figs. 3 and 3a, an end member 4 is provided with lateral apertures 41 for the passage of coolant, in addition to an aperture for receiving a control rod guide tube 7. Sleeves 1 and 9 are connected by spot welds 91 and the sleeve 9 and the guide tube 7 are connected by spot welds 71, the sleeve 9 serving to reinforce the tube 7 and the sleeve 1 being turned over at its end so as to form a flange 11. A ring 6 in engagement with the end member 4 abuts against this flange 11, while the tube 7 is clamped to the end member 4 by means of a nut 2 which engages in a suitable external screwthread on the sleeve 1. The material and mechanical dimensioning of the flange 11 are so chosen that the flange is deformed when a given pressure between the ring 6 and the end member 4 is exceeded. In a variant of this connection (Fig. 3b, not shown), the ring 6 and sleeve 9 have been omitted and the flange 11 engages directly in a recess (42) in the end member 4. In alternative embodiments, in place of the flange 11, there are incorporated shear pins (5) (Figs. 4, 4a and 4b, not shown), balls (51) held in place by a retaining ring (6) (Fig. 5, not shown), and spot welds having limited strength (not shown). A further possible construction makes use of prestressed springs for connecting the guide tubes and the end member(s), the springs being arranged to break when a predetermined pressure is reached.
Patent GB-1028967-A (GB)
Title: Improvements in or relating to declutching devices
IPC: F16D23/14
Filed: 1963-02-26
Abstract: 1,028,967. Controlling friction clutches;  securing throw-out bearings on clutch covers; springs. FRANCAISE DU FERODO S.A. Feb. 26, 1963 [Feb. 26, 1962; Jan. 26, 1963] No. 7739/63. Headings F2C, F2L. F2S and F2U. A clutch throw-out bearing assembly com-  prises a ball bearing carried by the clutch, for  engagement by a non-rotary flat thrust pad  actuated by the clutch control to move axially during clutch disengagement. In one form, a ball bearing 31, Fig. 1, is mounted upon the cover 13 of a friction clutch by tangential spring strips 28, Fig. 2 (not shown), between pins 22, 29 and supports a ring 33 of graphite &c. for engagement by a thrust pad 30. A clutch control shaft 37 fast with levers 36 carries the thrust pad 30, which accordingly moves both transversely and axially of the clutch during its clutch disengaging movement. In the form shown, axial movement of the throw-out bearing 31 is permitted by the tangential spring strips 28 and acts upon the inner ends of levers 19 constituted by radial slots 20 in a spring diaphragm 17, thus tilted about the pins 22 to act through withdrawal hooks 25 and move the clutch pressure plate 14 to its disengaged position. In one modification, Fig. 3 (not shown), the graphite thrust pad is mounted for engagement with a cast metal ring carried inside the ball bearing. In another modification, Fig. 4 (also not shown), the bearing comprises caged balls between similar sized parallel thrust races. In yet another modification, Fig. 5 (also not shown), the thrust pad is made of magnetic or sintered material. The modified throw-out bearing assembly according to Fig. 3 (not shown) is illustrated in Fig. 6 (al so not shown) applied to a conventional radial throw-out lever arrangement in a clutch. all the levers being as usual independent of each other. In another form, the ball bearing 31, Fig. 7 (not shown), acts through a spring diaphragm 17 upon the clutch pressure plate 14 and is slidden in the clutch disengaging direction by a thrust ring 30 carrying a lining 33 of friction material engageable with an abutment ring 40. The inner race of the bearing 31 is supported by a sleeve 54 splined upon a sleeve 50, a spring 56 biasing the bearing 31 against the inner ends of the radial levers 19 of the diaphragm and abutting against a pulley 52 held on the clutch driving shaft 10 by a nut 53. Springs.-The inner ends of the diaphragm spring levers 19 may be hardened, e.g. by a high-frequency induction process, and may be coated with tungsten &c. carbide. The spring diaphragm 17 then has an unhardened circular outer zone, a hardened circular inner zone constituted by the inner ends of the levers 19, and a transistional intermediate zone between the outer and inner zones.
Patent GB-195087-A (GB)
Title: Improvements in or relating to spark plugs and like electrical devices
IPC: H01T13/38
Filed: 1923-03-17
Abstract: 195,087. Gueniffey, P. F. March 18, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Sparking-plugs. - Electric insulation, particularly for use with sparking-plugs, is covered wholly or in part with an adherent metallic coating which may be turned or screw-threaded for engaging in the main casing or support. It may be cast around, or electrically deposited on, the insulation, and may be such that its thermal coefficient compensates for the different rates of expansion of the insulation and casing.
Patent GB-976629-A (GB)
Title: Improvements relating to data handling systems
IPC: G01T1/17
Filed: 1961-03-03
Abstract: 976, 629. Electronic counting apparatus; electric digital-data-storage apparatus. WESTINGHOUSE AIR BRAKE CO. March 3, 1961 [March 3, 1960], No. 7779/61. Headings G4A and G4C. A data handling system comprises a binary counter, a plurality of storage banks and means for transferring a total counted in the counter through one or more storage banks to a last bank from which the total can be read out in serial form. As described, input pulses to be counted are applied via a lead 50 to a counter comprising three bistable cross-coupled transistor binary counting stages 1A, 10A, NA. During counting a negative inhibit voltage applied to a lead 44 prevents any transfer taking place but when counting has been completed, this potential is removed and the counted total is transferred via three transfer circuits C1, R1; C3, R3; CN, RN each comprising a pair of transistors to Storage Bank B which also comprises three transistor pair stages and is then further transferred to a last storage bank, Storage Bank A comprising stages 3A, 30A, 3NA. The transfer operations are similar to those described in Specification 952,997, successive totals counted in the counter being transferred in turn to the last empty storage bank. When Storage Bank A contains any data, an input is applied to a Transfer Control A which has an output connected to prevent any transfer to Storage Bank A until Bank A has been read out. A further output from Transfer Control A is connected over a lead 210 to a clock pulse source 211 to initiate a series of shift pulses which are applied to all the stages of Bank A to read out the data stored therein in serial form via an auxiliary stage XNA. Reference has been directed by the Comptroller to Specifications 917,853 and 952,997.
Patent GB-878161-A (GB)
Title: Improvements in or relating to apparatus for determining the signal-to-noise ratio of television signals
Inventor: NUTTALL THOMAS CAYTON
IPC: H04N17/00
Filed: 1959-03-06
Abstract: 878,161. Television. BUSH & RANK CINTEL Ltd. March 7, 1960 [March 6, 1959], No. 7826/59. Class 40(3) In a method of measuring television noise level, signals are derived from a scene containing a substantially uniformally illuminated area and applied via terminal 1 and circuits 2, 4 (see below) to a gate 5 which is controlled to pass signals derived only from said area, the gate output being applied to a passive network 6 comprising a capacitor 9 to remove any D.C. component and shunt resonant circuits 10 and 11 to remove line- and frame-frequency shading components, whereby there is obtained finally noise alone which is applied to a measuring device 8. Circuit 2 comprises an attenuator, and circuit 4 comprises a D.C. amplifier. Feedback via a buffer amplifier 12 is applied from the output of gate 5 to the input of amplifier 4, the arrangement being such that the D.C. conditions established in the amplifier cause the noise to fall within the amplitude range in which the amplifier operates linearly. Gate 5 may comprise a fourdiode switch and is controlled by frame- and line-frequency pulses which are produced by generators 16 and 19, added in circuit 20 and applied to control a gate pulse generator 21. In the example described, the uniformally illuminated area comprises a centrally disposed rectangle of one quarter of the whole picture area. Generators 16 and 19 develop pulses of duration corresponding respectively to one half frame duration and one half line duration, and are synchronized from frame and line pulses applied from terminals 14 and 17 via circuits 15 and 18 having delays corresponding respectively to one quarter frame duration and one quarter line duration. Reference is made to the use in network 6 of additional resonant circuits tuned of integral multiples of line and frame frequencies and sums and differences of line and frame frequencies and their harmonics. In a second embodiment of the invention, Fig. 2 (not shown), the shading component is eliminated by a circuit operating at line frequency only. The circuit comprises a lumped component network arranged to simulate an open-circuited transmission line having an equivalent length of one half of the line scan period. With this arrangement the shading compensation does not become effective until a few lines have elapsed with the result that the noise-measurement may be falsified by the presence of shading signals. To avoid this two gates are employed with the shading compensation network connected between them. The first gate operates at line frequency and continues uninterruptedly throughout the whole of the frame period, whilst the second gate operates at frame frequency and is timed so as to pass signal only after the shading compensation has become fully effective.
Patent GB-313223-A (GB)
Title: Improvements in and relating to control systems for dynamo-electric machines
IPC: B66C13/22
Filed: 1928-03-16
Abstract: 313,223. British Thomson-Houston Co., Ltd., Harris, F. H., Nixon, L. R., and Peacock, J. V. March 16, 1928. Systems depending on the use of two or more motors ; running on constant current. - In a system for running two or more motors B, C, D in series on a generator A with its field-windings arranged to deliver approximately constant current, when one motor C normally used for intermittent work as in hoisting excavated material is called upon for prolonged work as in propelling the excavator, the field strength of the generator is reduced so as to prevent overheating of the motor. In the arrangement shown in the Figure, the change from intermittent to continuous work is effected by moving a clutch S which is attached to a contact-lever T adapted to put resistance M into and out of the shunt field winding L of the generator A. Alternatively the strength of the separately excited field H may be reduced, or both fields may be varied simultaneously. In order to limit the speed of the motor, its field strength may be reduced by current delivered from a coupled generator. Specification 278,467 is referred to.
Patent GB-350540-A (GB)
Title: Improvements in or relating to the purification of swimming bath water
IPC: C02F1/76
Filed: 1930-03-12
Abstract: In a process for purifying swimming-bath water for re-use by the addition of chlorine in excess and subsequent treatment with a carbonaceous material to convert the excess chlorine into chlorine ion, a small quantity of ammonia or an ammonium salt is added to the water either in the bath or during its circulation outside the bath. The ammonia unites with chlorine to form chloramine which acts as a sterilizing agent.  The circulation system may include a filter and when the water contains large quantities of manganese, the filter may be charged with sand containing manganese dioxide. Alternatively a filter containing peroxide of manganese may be arranged in the system after the sand filter.  The Specification as open ot inspection under Sect. 91 (3) (a) comprises also (a) the heating of the water at the point where the action of the chlorine takes place and during passage through the carbonaceous material; (b) the admixture of an insoluble, acid-neutralizing agent, such as chalk, limestone, marble and bauxite, with the manganese dioxide used; (c) the addition to the water as bactericidal agents of halogen derivatives of phenols and their sulpho-acids, especially the derivatives of naphthols, such as "tetra-p-diphenol," "tribromdicresol," p-chlor-m-cresol or its sodium compound, "the chlorsulphonamides of aromatic hydrocarbons or carboxylic acids, such as p-toluol-mono-chlorsulphonamide in the form of p-toluol-monochlorsulphonamide of sodium or p-toluol-dichlor-sulphonamide"; (d) the cleansing of the carbonaceous material by backwashing with water, calcination or treatment with acids or alkalies, or oxidizing or reducing agents. This subject-matter does not appear in the Specification as accepted.
Patent GB-1395913-A (GB)
Title: Vehicle control apparatus
IPC: B61L3/00
Filed: 1971-03-30
Abstract: 1395913 Automatic vehicle control T O JEFFRIES 24 March 1972 [30 March 1971] 8246/71 Heading B7H In a transport system each vehicle of a bunch of vehicles is maintained in register with a controlling wave moving along the vehicle track at a predetermined speed. Each controlling wave signal, which can be the power supply for the vehicle, is of staircase waveform 10 and is applied to a sectional conductor A-B<SP>1</SP> extending along the track such that each step of the waveform is associated with one section of the conductor. The voltage V n  at the section E is such that it drives a vehicle on section E at the speed at which the waveform is moved to the right along the track. If for some reason the vehicle slows it drops back to a higher voltage section which acclerates it back to its initial position, similarly, if it speeds up it enters a lower voltage section which produces a reduction of speed to return it to its initial position. The sections are connected by resistors 13 and diodes 14 so that a fixed D.C voltage applied, e.g. between sections A and O automatically produces the staircase form. The D.C. voltage is then switched Fig. 4 (not shown) to between sections B and A<SP>1</SP> and then to C and B<SP>1</SP> to produce the wave movement along the track, successive waves being separated by a guard region. A number of vehicles is controlled by each travelling wave these tending to bunch and travel in contact.
Patent GB-905124-A (GB)
Title: Improvements in racking heads for filling pressure casks
Inventor: REEVE JOHN EDWIN
IPC: B67C3/32
Filed: 1959-03-10
Abstract: 905,124. Valves. HOPKINS & SON Ltd., G. April 13, 1960 [March 10, 1959], No. 8266/59. Class 135. [Also in Group XVII] A valved racking head for use in filling casks with liquid, and at the same time permitting the passage of a gas to place the liquid in the cask under pressure, is characterized in that the liquid passage and the gas passage are concentric and so constructed that the gas passage is opened before the liquid passage on applying the racking head to the valve of a cask. When the sleeve 40 is placed over a cask valve, such as that described in Specification 905,125, a centring cone 41 causes the sealing washer 4 to seat against the cask valve. Downward pressure on the racking head causes the sealing washer 4 to displace the parts 1 and 43 upwardly relatively to the parts 7 and 10, thus moving the part 1 off a sealing washer 26 to connect the interior of the cask with a gas conduit 28. Further downward pressure on the racking head causes a sealing ring 46, on a ring 24, to engage the cask valve and move the part 7 upwardly off a liquid valve member 9 having a sealing washer 25. This action connects a liquid passage 19 with the interior of the cask. According to a modified construction the sleeve 40 is omitted and the centring cone 41 is integral with the part 43.
Patent GB-803695-A (GB)
Title: Improvements in or relating to circuit arrangements for generating repetitive electrical signals in morse or other code
Inventor: WOLFENDALE ERIC
IPC: H04L15/08
Filed: 1957-03-13
Abstract: 803,695. Morse code signal generators. MULLARD, Ltd. March 13,1957, No. 8281/57. Class 40 (1). [Also in Group XL (c)] A circuit for generating Morse or other character code signals comprises a dash generator circuit 1 and a dot generator circuit 2 which are alternatively arranged to provide an output at O under the control of a multivibrator circuit 3 which has a second multivibrator circuit 6 locked thereto having one period equal to the time occupied by the signal representing "SOS" and the other period equal to the required spacing between "SOS" signals. The output from the multivibrator 6 controls a gate 5 in the output lead. Alternatively the multivibrator 6 may not be locked to the multivibrator 3 but may periodically inhibit its action so that either circuit 1 or circuit 2 produces a continuous succession of pulses which are blocked at the gate 5. When the multivibrator 3 is not inhibited the gate 5 is open to pass a sequence of dots and dashes. The pulse generator circuits 1, 2 may be crosscoupled multivibrator circuits employing junction transistors. The control circuit 3 may also be of this type in which case the dash and dot multivibrators may have a common transistor T12, Fig. 2, a transistor T1 being used for one pulse generator and a transistor T2 in the other pulse generator. Voltages obtained from the control unit are applied alternatively to the terminals C1, C2 to inhibit the respective pulse generator circuits.
Patent GB-429705-A (GB)
Title: An improved method for bonding rubber or the like to metal and other surfaces
IPC: C08J7/14
Filed: 1934-03-16
Abstract: In attaching material composed wholly or partly of rubber or the like to a rigid surface, such as metal, glass, wood, or hard rubber, a bonding surface is prepared upon the said material by the direct application of sulphuric acid thereto, the rigid surface then being contacted with the prepared surface.  If a wax, oil, grease or like film is present, the material is treated by spraying, brushing, or dipping with a saturated solution of chromium trioxide in sulphuric acid.  The acid used has a concentration of 96 parts by volume H2SO4 to 4 of water.  The surface of a rubber material is treated for half a minute with the solution of chromium trioxide in sulphuric acid, washed in a jet of water to remove acid, and immersed in running water for about 15 mins.  Where only one surface of a sheet is to be treated, the other may be protected by the application under pressure of a sheet of tracing cloth or by coating with wax. Alternatively, the acid may be brushed on to the material with a glass brush.  After drying, the material is applied to the metal or other surface freed from grease, scale, or rust, preferably while avoiding formation of a rough surface, and heated under pressure in a mould or between platens.  A temperature of 298 DEG  F. for 10 mins. is sufficient. Moulding and vulcanization may take place concurrently with the bonding.
Patent GB-1088061-A (GB)
Title: Extruder means for and method of working plastic stock to extrusion plasticity
IPC: B29C48/67
Filed: 1965-02-26
Abstract: 1,088,061. Pug-mills. CROMPTON & KNOWLES CORPORATION. Feb. 26, 1965 [Nov. 19, 1964], No. 8486/65. Heading B1C. [Also in Division B5] An extrusion moulding machine or plasticizer comprises a single-flight screw 18 whose flight 30 is interrupted to form gaps g, collars 34', 34" being positioned within the gaps to periodically deflect the moulding material, viz, synthetic plastics material, from its helical flow path within melt zone Z to produce a uniform consistency of the melt. The collars 34', 34" are integral with screw 18 and are provided with peripheral slots 38, bounded outwardly by barrel 12, which are parallel to the axis x of the screw. Alternatively, Figs. 3 and 4 (not shown), passages (38a), (38b) may be skew to this axis. Preferably the gaps g are formed by the removal of portions of a continuous flight, Fig. 5 (not shown). Barrel 12, Fig. 1, is surrounded by heat exchange jackets 20 which comprise embedded therein electric heating elements 24 and peripheral cooling fins 26. Screw 18 may increase in diameter in the downstream direction.
Patent GB-852684-A (GB)
Title: 6-methyl steroid compounds
Inventor: PETROW VLADIMIR
IPC: C07J75/00
Filed: 1957-10-02
Abstract: The invention comprises steriods of the formula: <FORM:0852684/IV(b)/1> (wherein R is hydrogen or an acyl group containing at most 10 carbon atoms) and the preparation thereof by oxidizing 3b -hydroxy- or a 3b -acyloxy-6-methyl-pregna-5:16-dien-20-one and acylating the product if desired.  The oxidation may be effected with hydrogen peroxide in alcoholic solution containing sodium or potassium hydroxide.  In examples (1) the 3b -acetoxy compound is so oxidized at 0 DEG C and the initial product, which consists partly or completely of the 3b -ol, is acetylated with acetic anhydride in pyridine to give 3b -acetoxy-16a  : 17a -epoxy-6-methyl pregn-5-en 20-one; and (2) the oxidation is conducted at reflux temperature to give the pure 3b -ol as the product.  Specification 851,742 also is referred to.