baber/WOPTO huggingface dataset:
Patent GB-548767-A (GB)
Title: Improvements in or relating to electromagnetic driving units, particularly for mirror oscillographs
IPC: B64D15/04
Filed: 1941-07-10
Abstract: 548,767. Oscillographs. ELECTRICAL RESEARCH PRODUCTS, Inc. July 10, 1941, No. 8711. Convention date, July 31, 1940. [Class 37] In a mirror oscillograph a rockable armature is supported axially at both its ends on a twistable strip and is spaced from the pole faces of the magnetic system by a fixed cylindrical wire in alignment with the strips and forming a bearing on which the armature rocks. A U-shaped yoke 1 of magnetic material supports a permanent magnet 2, the ends of which slope nearly to the top leaving a short portion with vertical end faces. One pole-piece of this magnet is formed by laminations held by clamps 3 secured together by screws 4, 5. Coils 7, 8 are fitted on bifurcated extensions of the pole-piece, which extensions are reduced at 9, 10 to concentrate the flux. Brass clamps 11, 12 engage V-shaped grooves in the pole-tip assembly to hold it against transverse movement. An H-shaped yokecap 17 is secured to the yoke 1 by screws 18, 19, 20, 21. The centre of the yoke-cap 17 is reduced so as to fit between the coils 7, 8. A wire 22 rests on the reduced central portion of the yokecap 17, which forms one of the pole faces, and its ends are passed through notches 23, 24 and clamped by plates 25, 25a so that the wire 22 is under tension. A plate 26 has formed integrally with it an armature 27 which is supported across a square opening by means of integral strips 28, 29, the armature being free to rock by twisting the strips. The edges of the armature are serrated to reduce the mass of the armature while supporting the outer edges of the mirror (not shown) which is cemented to the armature. The air-gap between the armature and pole pieces is regulated by inserting shims 31, 32 of the desired thickness between the plate 26 and cap 17. The wire 22 corresponds in diameter to the thickness of the shims so that it provides a support about which the armature may rock.
Patent GB-1098871-A (GB)
Title: Improvements relating to the feeding of hardboard and like sheets or panels to a processing machine
Inventor: COLLINGE JAMES NEWBY
IPC: B65H5/06
Filed: 1964-03-02
Abstract: 1,098,871. Conveyers. SINGER-COBBLE Ltd. March 1, 1965 [March 2, 1964], No, 8724/64. Heading B8A. [Also in Division B6]  Plaster boards or the like are fed to a machine by two conveyers in tandem, the second conveyer, i.e. the conveyer nearer the machine having means for gripping and transversely aligning the boards and moving the boards at a speed slightly less than that at which they are taken by the machine, and the first conveyer moving the boards at a faster speed than that imparted by the second conveyer so that each board placed on the first conveyer catches up and adjoins the preceding board before the latter is wholly on the second conveyer, and the boards are slightly spaced as they enter the machine. The first conveyer comprises a series of driven rollers 4, Fig. 2, and has a side-guide 8 adjustable by means of screws 9 rotated by a shaft 10 and bevel gears 11. The second conveyer includes two driven chains 12 adjusted according to the width of the board by screws 15. Mounted on the chains 12 are angle members, the vertical flanges of which form side guides for the boards. The horizontal flanges are coated with a friction material so that a positive grip on the boards is obtained. Fixed side guides may be employed in which case the angle members are omitted and the boards are supported by the chains which are coated with a friction material. The boards may be fed to a machine covering them with P.V.C. film fed in web form and cut between the boards; the devices described ensure that there is a minimum waste of film between successive boards.
Patent GB-684253-A (GB)
Title: Improvements relating to electric heaters
Inventor: SHARPLES JOHN THOMAS
IPC: F24C7/06
Filed: 1950-04-06
Abstract: A sheet of plastic material, e.g. polyvinyl chloride 6 feet wide, is heated by radiation uniformly over its width by special disposition of the heating elements (see Group XI) whilst it is passed through various sets of rollers for reducing its thickness or for tensioning it and subsequent embossing between rollers.
Patent GB-638542-A (GB)
Title: Improvements relating to gas or vapour burners
Inventor: CLARKE JOHN STANLEY
IPC: F28D7/10
Filed: 1948-03-25
Abstract: 638,542. Gas or vapour burners. LUCAS, Ltd., J. March 25, 1948, No. 8790. [Class 75 (i)] [Also in Group XXVII] A gas or vapour burner, particularly for use in a hot air engine, of the type in which an annular combustion chamber b is fed with a mixture of gaseous or vaporized fuel and air from orifices j in an annular duct i, is provided with a turbulating ring k of channel section spaced by distance pieces n from the sides of the combustion chamber to form passages m for the flow or air to the open end of the ring, the forming of the distance pieces n also providing apertures for entry of air into the channel of the ring and additional orifices p also being provided for this purpose. The combustion products pass underneath a partition c and thence around preheaters e for the combustion air.
Patent GB-804254-A (GB)
Title: Process for the production of chloroprene
Inventor: BELLRINGER FREDERICK JAMES
IPC: C07C21/21
Filed: 1956-03-21
Abstract: A process for the production of chloroprene by chlorinating butadiene to give a mixture of 3 : 4-dichlorbutene-1 and 1 : 4-dichlorbutene-2, isomerizing the latter to 3 : 4-dichlorbutene-1 and dehydrohalogenating the 3 : 4-dichlorbutene-1, comprises the further step of fractionally distilling the resulting chloroprene under substantially anhydrous conditions, whereby 1-chlorbutadiene is substantially completely separated in one fraction, and chloroprene substantially free from 1-chlorbutadiene is obtained as another fraction.  By "substantially anhydrous" is meant that the chloroprene feed contains only dissolved water and no separate aqueous phase is present.  The fractional distillation may be carried out in the presence of polymerization inhibitors or under reduced pressure to reduce polymerization.  In an example, 1 : 4-dichlorbutene-2 obtained by the chlorination of butadiene is fractionated in the presence of copper, isomerized to 3 : 4-dichlorbutene-1, refractionated to obtain pure 3 : 4-dichlorbutene-1, which is fed into boiling aqueous sodium hydroxide, the chloroprene produced being distilled off, dried by azeotropic distillation with methylene chloride and fractionated to give chloroprene containing less than 0.1 per cent of 1-chlorbutadiene.
Patent GB-727889-A (GB)
Title: Improvements in and relating to textile materials
Inventor: HUNT RICHARD EDWIN
IPC: D06M11/05
Filed: 1950-01-17
Abstract: Textile fabrics consisting wholly or substantially of regenerated cellulose and free from substantial actual crease marks are brought into contact in open width with a swelling agent for regenerated cellulose at a concentration and temperature such that the regenerated cellulose swells without substantial damage, and the fabrics are maintained in contact with the swelling agent in open width and under as little tension as possible and without creasing, until they have been rendered "crease-shedding" and "wet-crease-resisting."  Specified swelling agents are those set out in Specification 727,882.  Numerous examples are given, in one of which the fabric contains wool, and in another nylon, in addition to regenerated cellulose.  Specifications 449,243, 727,881, 727,888 and 727,890 also are referred to.
Patent GB-435862-A (GB)
Title: Improvements relating to the treatment of sewage and like liquids
IPC: C02F1/00
Filed: 1934-03-22
Abstract: 435,862. Treating sewage. HOPWOOD, J., Rose Cottage, Fulford, and ADAMSHYDRAULICS, Ltd., Peasholme Green, both in York. March 22, 1934, No. 9009. [Class 111] [See also Group II] To promote coagulation and flocculation in sewage and like waste liquid, the liquid is treated in a tank provided with one or more paddles supported by arms to which an oscillatory or pendulum motion is imparted. As shown, paddles j are supported by arms e depending from shafts d which are oscillated by connecting rods f from a cam, eccentric or crank pin f on a shaft driven from an electric motor i. The rods e may have branches k carrying additional blades l, l<1>. The branches k may be angularly adjustable relatively to the arms e, and the blades may be angularly adjustable on the arms e or the branches k.
Patent GB-145185-A (GB)
Title: Improvements in or relating to hair pins
IPC: A45D8/06
Filed: 1919-04-09
Abstract: 145,185. Gasper, G. C., and Waschko, M. G. April 9, 1919. Hair-pins. - A hair-pin is provided with locking-shoulders as shown ir Fig. 1.
Patent GB-550701-A (GB)
Title: Improvements in photographic materials containing dyes
IPC: G03C1/83
Filed: 1941-07-17
Abstract: 550,701. Trisazo dyes. KODAK, Ltd. (Eastman Kodak, Co.). ). July 17, 1941, No. 9061. [Class 2 (iii)] [Also in Group XX] Trisazo dyes, used in photography, have the generalformula R-N =N-R 1 -N =N-R  2 -N =N-R  3  where R 1  and R 2  each represent a benzene or naphthalene nucleus, and Rand R 3  each represent an aromatic nucleus containing one or more phenolic and one or more amino groups and one or more sulphonic acid groups, for example the nucleus of an aminonaphthol mono- or di-sulphonic acid. R 1  and R  2  and R and R 3  may be further substituted by one or more monovalent substituents such as methyl, ethyl, n- or iso-propyl, n- or isobutyl, methoxy, ethoxy, n- or iso-propoxy, methoxymethyl, methoxyethyl, chlorine, or bromine. The dyes have preferably not more than two sulphonic acid groups in each of the end nuclei, and may be prepared by tetrazotizing diaminoazobenzenes, diaminoazonaphthalenes, or aminophenylazonaphthylamines and coupling with two mols. of an aminonaphthol mono- or di - sulphonic acid, which may be substituted in the amino group by acyl, alkyl, aracyl, arakyl, or arylsulphonyl groups. Dyes specified are (a) the dye obtained by couplling tetrazotized 4 - aminophenyl - 1 - (azo 4<SP>1</SP>)- (11-naphthylamine - 6<SP>1</SP> - sulphonic acid) in alkaline solution with 2 mols. of 1 : 8 - benzoylaminonaphthol - 3 : 6 - disulphonic acid ; (b) the dye obtained by coupling tetrazotized 4 : 4<SP>1</SP>- diaminoazobenzene with 2 mols of 1 : 8 - aminonaphthol - 2 : 4 - disulphonic acid ; (c) the dye obtained by coupling tetrazotized 4 : 4<SP>1</SP> - diaminoazobenzene in alkaline solution with 2 mols. of 1 : 8 - aminonaphthol - 4 - sulphonic acid ; (d) the dye obtained by coupling tetrazotized 4 : 4<SP>1</SP> - diaminoazobenzene in alkaline solution with 2 mols of 2 - amino - 8 - naphthol 6 - sulphonic acid ; and (e) the dye obtained by coupling tetrazotized 4 : 4<SP>1</SP>-diamino 2 : 5 - dimethoxyazobenzene in alkaline solution with 2 mols. of 1 : 8 - aminonaphthol - 2 : 4 - disulphonic acid. Specifications 133,034, [Class 98 (ii)] ; 475,784, 475,786, 477,524, 503,752, 521,746, 521,835, 521,837, [all in Groups. XX], and 546,704 are referred to.
Patent GB-514510-A (GB)
Title: Improvements in or relating to illuminating means for indicating instruments
IPC: G01D11/28
Filed: 1938-03-25
Abstract: 514,510. Indicating - apparatus. S P E R R Y GYROSCOPE CO., Inc. March 25, 1938, Nu. 9136. Convention date, March 27, 1937. [Class 106 (iv)] For illuminating indicating instruments such as those in motor vehicles and aircraft a substantially flat window cover 3 is spaced from a supporting plate 5 by a spacing member, shown as a rim 7, through which light passes from a lamp 9 near the edge of the member, without reflection on to the inner surface of the cover from which it is reflected on to the dial. The part of the rim 7<SP>1</SP> next the lamp may be painted or ground to reduce the light entering at that point, and at other parts the outer edge is painted with light reflecting paint. The socket into which the lamp screws has a small ring 14 connected to one supply wire insulated from the socket 11 into which the screw base 10 carrying the lamp is screwed. The lamp holding member 16 preferably of insulating material is fastened on a cut away part of the casing and has doubly curved surface 17 with extensions in the casing painted with light reflecting material. This mounting enables the lamp to be replaced without disturbing. the vacuum in aircraft instruments. Specification 494,945 is referred to.
Patent GB-857615-A (GB)
Title: Improvements in or relating to electron discharge devices and to targets therefor
IPC: H01J31/06
Filed: 1958-03-21
Abstract: 857,615. Cathode-ray tubes. WESTERN ELECTRIC CO. Inc. March 21, 1958 [March 27, 1957], No. 9152/58. Class 39(1). In a pulse code modulation or other cathode ray tube the target is a grooved block each groove having a wire electrode therein to collect secondaries emitted by the block groove surfaces the grooves being so arranged that the wire electrodes are shielded from the primary electron beam. The tube may be used for monitoring memory devices and the beam is of strip form. The wire electrodes have individual terminals. The collector block 10, preferably of aluminium has its grooves inclined by about 60 degrees, e.g. 63 degrees, to the plane of the front face and their exposed sides is oxidised to increase the secondary emission therefrom. The target wires pass through individual guide slots 28 in ceramic e.g. steatite end blocks 11 and go across slots 22 to individual Mo terminals 12 connected to individual button terminals 15, the structure being similar at both ends of wires 19. Thermal expansion and contraction effects of the Monel wires 19 are minimised by forming metal end plates 14 with integral spring flaps 20 having curved free ends pressing against insulating pins 21. The tube also has shields 6 and 8, the latter having a rectangular aperture for passage of the strip beam. Shield 6 has brackets 7 supported from the envelope by braces 31 and a first set of insulating support rods 4, while the shield 8, coder plate and collector structure are supported from shield 6 by a second set of insulating support rods 5. Biasing leads 17, one of which is connected to shield 8 are connected to end button terminals 13 The gun. includes main deflecting members and tilt correcting members supported by the first set of rods 4, and is preferably constructed as described in Specification 723,504. Specification 679,730 also is referred to.
Patent GB-643327-A (GB)
Title: Improvements relating to communication systems
IPC: H04N1/12
Filed: 1947-04-09
Abstract: 643,327. Television. BRADY, J. B. April 9, 1947, No. 9416. Convention date, June 7, 1945. [Class 40 (iii)] A printing telegraph receiver prints its message on a transparent web and it is then projected optically on to the mosaic of the iconoscope of a television transmitter so that, as it is being printed, the message is re-transmitted to a plurality of distant electronic television receivers where the image is optically projected on to a large screen. The image of a particular receiver may be photographed for monitoring purposes and in this case each line-feed movement of the printing receiver paper-feeding mechanism rotates a wheel 142, Fig. 10, by one tooth so that contacts 144, 145 are momentarily closed to energize a relay 148 whose contacts 151 energize an oscillator 153 and send a short burst of oscillation over the television channel 163. At the monitoring receiver 54, Fig. 14, the line-feed signals are filtered, amplified and applied via a time-constant circuit to a relay 230 which remains operated so long as the message carrier of the printing receiver steps on. If in addition picture signals are being received relay 225 closes its contacts 221 and thus energizes relay 218 which starts a film drive motor 212 of a kinematograph camera 204. At the same time a parallel relay 234 is energized and its armature 235 pulls down a shutter 237 so that a slot 238 therein coincides with a slot 208 in a fixed mask to expose the film 233 to the last complete line of text displayed on the receiver screen 166. Failure of either picture or line-feed signals stops the motor 212 and closes the shutter 237. In a modification, Fig. 12 (not shown), monitoring is by means of still photography and the line-feed signals operate a ratchet and pawl to step on the film by one line and at the end of this movement the signals energize a magnet to lift a slotted mask and momentarily expose the film to a line of text displayed on the receiver screen. Details are given of the method of mounting the transmitting iconoscope adjacent the printing receiver in shock-absorbent mountings.
Patent GB-380739-A (GB)
Title: An improved paper material and method for making the same
IPC: D06N3/02
Filed: 1932-04-01
Abstract: An apparatus for spraying paper or waterleaf comprises jets b spraying in a chamber a the paper, passing from a roll d to a roll e, which is dried in a chamber c by air passed through <PICT:0380739/IV/1> a steam coil f and a condenser i by fans g, j, the chambers a, c being substantially airtight and the solvent being recovered by a trap k &c.ALSO:<PICT:0380739/III/1> In an apparatus for spraying paper &c. as it passes from a roll d to a roll e, air passed by fans g, j over a steam coil f evaporates the solvent which is recovered by a condenser i and a trap k drained by a pipe l.
Patent GB-826844-A (GB)
Title: Improved means for cleaning heating surfaces in economizers and similar equipment
IPC: B08B9/032
Filed: 1957-03-22
Abstract: 826,844. Cleaning heat-exchangers. K. E.- PATENTER A. B. March 22, 1957 [April 21, 1956; Feb. 15, 1957], No. 9552/57. Class 99(2). In economizers, steam boilers &c., wherein the heat-exchange surfaces thereof are cleaned by the impingement thereon of falling steel shot, vibrating members 3, 13 facilitate substantially horizontal conveyance of the shot into the economizer and over the surfaces, and from the economizer. As shown, the pipes 3, the interior of which may be subdivided into passages equal in number to the discharge openings 35 in the pipes, extend from a trough 5 into the gas shaft 2 of the economizer ; the pipes are carried by hangers, links or springs 8 and are connected to a vibrator 9. Provided at the bottom of the shaft 2 are shot-collecting pockets 10 connected by flexible pipes 14 to at least one pipe 13 connected to an electric vibrator 16. A feed rod 15, Fig. 4, provided with a weight 23 and attached to the bottom of the pipe 13, extends upwardly through the lower part of the pocket 10 and into the collected shot 6 therein. One end of the pipe communicates with the suction side of a fan 18, and the other opens above a container 19 but is closable by a pivotally mounted, counterweighted, damper 21 ; an electric heating element 20 or some other source of heat is provided to heat the air sucked into the pipe so that the temperature of the shot is kept high enough to prevent condensation of steam on the shot ; alternatively, hot flue gases are conducted into the pipe. The container 19, when filled with shot, is hoisted upwardly by a rope 26, wound on to a motor-driven windlass 29, and along a pair of guides 25; the damper 21 is actuated to close the pipe 13 and by the container as the latter is hoisted. The guides have curved branch tracks 31 into which upper guide pins 32 on each side of the container engage so that the latter in the position 19<SP>1</SP> discharges shot into a supply container 7. The means for spreading the shot when discharged from the openings 35 in the pipe 3 comprises a bowl 4, Fig. 3, carried by a hanger 34 attached to the pipe, the bowl being partially filled with shot against which the falling shot ricochets to be spread in all directions and cascade downwardly on to bundles 1 of tubes of the economizer. In modifications, (a) funnel-shaped guide members are arranged above a rigidly held bowl 4, and (b) an irregularly-shaped member 41, Fig. 8, held in horizontally-disposed bearings is laterally offset from the axis of the shotdischarge opening 35 and rotatable under the impact of shot thereon to obtain even wear on the member ; the member may be manually rotatable. In a modification, the pipe 3 is arranged above the roof of the shaft 2 and the shot is discharged through pipes on to the member 4<SP>1</SP> rigidly or rotatable mounted on a removable rod extending through a wall of the shaft. Specification 826,845 is referred to.
Patent GB-722617-A (GB)
Title: Vacuum apparatus for filling containers for transporting liquids
IPC: A01C23/04
Filed: 1952-04-17
Abstract: 722,617. Vacuum and pressure apparatus for raising liquids. BRASSINGTON, J. E. April 17, 1953. [April 17, 1952; April 30, 1952] Nos. 9619/52 and 10820/52. Class 102 (2). [Also in Group XXIX] A tank 10 for transporting liquids is mounted on a wheeled carriage 11 and is provided with a cover 25 fitted with a connector 26 for a source of vacuum, an air vent valve 28 and a vacuum gauge 29. A float 37 is connected to a stem 34 which carries a valve 36 which cuts off the connection to the source of vacuum when the liquid level in the tank rises. A valve 35 slidable on the stem 34 closes the passages 33 when the pressure in the tank is below that in the chamber 31. The tank has a valve controlled opening 45 to which a pipe 53 may be attached for filling and to which a spreader is attached when the tank is emptied. The valve 46 is actuated through linkage from a handle 48. The spreader is in the form.of a circular plate 55 attached to radial arms 56 and spaced from the end of the pipe 54 ; the spreader is supported by chains 58. As shown in Fig. 1, the pressure in the induction pipe of a tractor 20 is used as a source of vacuum and pipes 41, 42 are led to a connector 40 on the tractor to which the pipe 27 is attached ; alternatively, a separate vacuum pump may be used. The tank 10 may be enclosed in a further tank and the space between them evacuated to insulate the tank 10 against temperature changes. Air under pressure from the outlet of the vacuum pump may be used to force the contents from the tank.
Patent GB-351987-A (GB)
Title: Improvements in and relating to couplings for road vehicles
IPC: B62D53/08
Filed: 1930-03-26
Abstract: 351,987. Tractortrailer couplings. ANDREWS, A. H., 141, Windsor Street, Wolverton, and HONOUR, A. V., 39, High Street, Stony Stratford, both in Buckinghamshire. March 26, 1930, No. 9665. [Class 79 (iii).] In coupling an adapted horsedrawn or other trailer vehicle to a tractor, a rectangular frame 2, attached to a turntable element 1 on the trailer and provided with a number of pairs of rollers 7 in an inclined plane, rides up a runway 8 as the rear of the tractor 5 is backed thereunder, coupling being effected by pins 11 inserted into holes in lugs or projections 12 on a bolster 3 on the frame 2 when these protrude through apertures in a bolster 4 on the tractor frame. Alternatively, the rollers may be provided on the tractor and the runway on the turntable. In combination therewith, pivoted struts or legs 14, which may be furnished with wheels or rollers 15, are provided to support the trailer when detached, these being raised, after the vehicles have been coupled, by a wire or cable 19 passing, from a hand-operated winch 23, 24, over a pulley 21 on toggle stays 17, 17a and thence to the lower end 18 of the supports, suitable guide pulleys 22, 20 being disposed intermediately. The runway is formed with guide flanges 10 parallel at the upper part of the track and widening out at the lower end. To prevent tilting, projecting axle ends on the rearmost pair of rollers may engage brackets 13.