baber/WOPTO huggingface dataset:
Patent GB-905659-A (GB)
Title: Improvements in a method and apparatus for the exchange of heat between gases and particulate materials
IPC: C22B1/02
Filed: 1957-10-24
Abstract: 905,659. Heating, cooling or drying granular material or filter cake. DUNFORD & ELLIOTT PROCESS ENGINEERING Ltd., and PURCELL, J. G. Dec. 15, 1958 [Oct. 24, 1957], No. 33200/57. Classes 34 (2) and 64 (2). [Also in Group XII] Iron oxide filter cake to be dried, sugar to be cooled or other divided material to be heated or cooled is fed from a shoot 7 to form a bed 17 on louvres 13 mounted on radial plates 18 in a rotated drum 12 supported by rollers 3a. The apparatus may be of the form described in Specification 655,014, but in the present case, hot or cold gas or a gas flame is passed into the channels 11 formed by the plates 18 when the channels are at the upper part of their rotational travel and the louvres thus heated or cooled then pass down into contact with the bed 17 as the drum rotates so as to treat the material. In addition to this form of treatment, hot or cold gas may be passed through the bed of material, as it is in the prior Specification referred to. The radial plates 18 decrease in height towards the end having the gas outlet 16 so that the central space enlarges towards that end. As shown, hot air from a fan and heater enters the channels at the top of the apparatus before passing through the drum 12 (to an expansion chamber 5 above a discharge shoot) to a cyclone and an exhaust fan. In a modification, Fig. 3 (not shown), the material is fed from the opposite end by a wormfeed and the drum is tilted down to the discharge end. In another modification, Fig. 4 (not shown), the drum 12 has a first, heating zone and, axially adjacent to it, a second, cooling zone, there being a hot gas inlet and a cold gas inlet at one end of the drum and from these the gases flow through divisions of the channels formed by partitions between the drum shell and the inner wall of louvres 13 so that the hot gas flows through the inner divisions into the drum interior and the cold gas flows through the outer divisions to the undivided portions of the channels at the other end of the drum and thence into the drum interior. The gaps between the louvre plates 13 may be such as to permit the treated material to flow into the channels.
Patent GB-1128801-A (GB)
Title: Floor coverings
Inventor: CHECKLAND PETER BERNARD
IPC: A47G27/02
Filed: 1964-08-14
Abstract: 1,128,801. Foam coated fabrics. IMPERIAL CHEMICAL INDUSTRIES Ltd. 14 Oct., 1965 [14 Aug., 1964], No. 33230/64. Heading B2E. [Also in Division B5] A floor covering comprises a surface layer of a textile fabric weighing from 4 to 12 ozs./sq. yd. and an adherent backing or flexible polyurethane having a thickness of at least i inch and a density of between 2 and 5 1bs./cubic ft., said floor-covering having a compression per unit thickness of at least 70% may be made by allowing foam formation to take place in contact with textile material, the foam-forming reaction mixture being applied by spraying or spreading. The textile fabric may be woven, knitted or felted and derived from fibres of wool, cotton, linen, viscose rayon, polyamide, polyethylene terephthalate, cellulose triacetate, polyacrylonitrile and blends thereof.
Patent GB-191581-A (GB)
Title: Improvements relating to machines for forming the necks of glass or the like bottles
IPC: C03B23/00
Filed: 1921-12-12
Abstract: 191,581. Bateson, G. E., and Bateson, H. A. Dec. 12, 1921. Shaping bottle necks. - A muffle for use in machines such as described in Specification 8430/14 for forming the necks of glass or like bottles blown from a gathering stick is provided with a central cavity through which the bottle neck passes, on either side of which apertures are provided through which flames are directed in such manner as to issue in fan shape in a slightly downward direction on to the bottle neck. To an iron or other casing 1. blocks 2 of refractory material are fitted, the flames being projected through holes which are directed slightly downwards and are square or round at their outer ends 6 and flattened at their inner ends 7.
Patent GB-643523-A (GB)
Title: Improvements in or relating to electric harmonic generators
Inventor: BAKKER WILLEM KAREL
IPC: H03K5/00
Filed: 1947-12-17
Abstract: 643,523. Changing waveform. STANDARD TELEPHONES & CABLES, Ltd. Dec. 17, 1947, No. 33287. [Class 38 (ii)] An electric pulse generator for producing alternate positive and negative pulses when an alternating voltage wave, comprising a fundamental and an even harmonic, is applied to a non-linear inductance has the voltage wave applied to the inductance through a phaseshifting device so that the phase of the even harmonic is shifted relatively to the fundamental in such a manner that the even harmonic has zero amplitude at the instants that the pulses are generated. The phase-shifting de. vice comprises two amplifying valves 13, 14 in push-pull relationship between the input and output transformers 15, 16 respectively. The cathodes have conventional biassing circuits 17, 18 and the grids are connected to earth, i.e. the negative H.T. terminal 21, by a common circuit 19, 20. Two similar resonant circuits 25, 26 are connected between the circuits 17, 18 and the earth terminal 21, one or both of the elements L, C being adjustable, the adjustment being such for each circuit that the output pulses from the pulse generator are equally spaced. Specification 477,875 is referred to.
Patent GB-642878-A (GB)
Title: Improvements in or relating to electric time switches
Inventor: HAWKINS ARTHUR STEWART
IPC: H01H43/02
Filed: 1948-12-24
Abstract: 642,878. Actuation of switches; centrifugal switches. BRITISH THERMOSTAT CO.,. Ltd. Dec. 24, 1948, No. 33293. [Class 38(v)] A time switch suitable for use on aircraft where supply voltages fluctuate considerably, comprises a low-voltage electric motor 1 driving through a reduction gear 2-7 a cam shaft 2 having cams 8 which actuate a switch or a bank of switches 10, and the motor speed is controlled by a centrifugal switch in the mains supply to the motor. The centrifugal switch comprises two cylindrical segments 17, 17a mounted on an insulating sleeve 14 on an extension 15 of the motor shaft 13. Brushes 26 on rocker arms 25 carry the supply to the segments which terminate in lugs 18, 18a. The lug 18 supports an adjustable fixed contact 23 which is normally engaged by a movable contact 21. When the motor revolves above a specified speed the contact 21 moves away from the contact 23 thereby opening the motor. circuit, and when the motor speed is reduced the contact 21 re-engages the contact 23.
Patent GB-1249087-A (GB)
Title: Sulphonic acid cyanovinyl esters
Inventor: COELLN REIMER
IPC: C07C/
Filed: 1970-07-09
Abstract: 1,249,087. Fungicides containing sulphonic acid cyanovinyl esters. FARBENFABRIKEN BAYER A.G. 9 July, 1970 [11 July, 1969], No. 33386/70. Heading A5E. [Also in Division C2] Compounds of the general formula: in which R is a C 1 -C 6  alkyl group which may be substituted by 1-3 halogen atoms or a phenyl or benzyl radical optionally substituted by 1-3 halogen atoms and/or a C 1 -C 4  alkyl group and/or a nitro group and X is hydrogen or chlorine are used as active ingredients in fungicidal compositions. The compositions may contain solid or liquid diluents or carriers and may contain emulsifying and/or dispersing agents. The active compounds may also be used in admixture with other fungicides, insecticides, acaricides, nematocides, herbicides, plant nutrients and soil structure improvement agents.
Patent GB-297603-A (GB)
Title: Improvements in and connected with collapsible boxes or cases for holding electric and other bulbs
IPC: B65D5/50
Filed: 1927-12-10
Abstract: 297,603. Brownlie, J., and Horsley, A. Dec. 10, 1927. Boxes formed from special blanks; fittings, internal.-A collapsable, box for holding electric bulbs &c. is made from a one.-piece blank consisting of two portions, the portion A - - E being scored to form the four sides A - - D of the box and a flap E of rounded formation which slips into a slit in the side D when the box is set up and binds the whole together, and the portion G - - M, which in the blank is disposed below the portion A - - E, being scored to form the bottom J and top H of the box with closing flap G and the bulb carrier I, K, L. The part L of the carrier is formed with an aperture L<1> to take the neck of the bulb and a similar aperture J<1> is formed in the bottom of the box for inspecting the bulb when testing it without removing it from the box. The sides I, K of the carrier are cut to form tongues N which press against. the bulb, the latter being supported by an elastic band 0 looped around the tongues N. A smill tongue P on the side I of the carrier is turned over the part M to lock it in position.
Patent GB-933464-A (GB)
Title: Improvements in motor vehicle accessory systems
Inventor: OISHEI JOHN ROFFO
IPC: B60S1/12
Filed: 1959-10-02
Abstract: 933,464. Windscreen wipers. TRICO PRODUCTS CORPORATION. Oct. 2, 1959, No. 33508/59. Class 138 (1). [Also in Group XXIX] A windscreen wiper system hydraulically operated directly off the lubricating system comprises an hydraulic wiper motor 8, a pump 13 connected to the motor by a pressure line 9, a by-pass 17 for returning fluid from the line 9 to the pump 13, an hydraulically-operated valve member 18 controlling the by-pass 17, and a control valve 16 which, when open, directs fluid from the line 9 to close the bypass 17. A lubricating pump 2 overlies the wiper pump 13, each having a pair of intermeshing gears 11, 14, respectively, one of which is driven by a shaft 12 from the engine camshaft in the usual manner. Arranged in the by-pass 17 is an hydrostatic coupler unit comprising the valve member 18 operating in a chamber 19 and backed by a coil spring 21 resting at its lower end on a piston 22 operating in a chamber 23. The wiper pump 13 when idling will discharge through the normally open by-pass 17 back into the sump 4 but, on opening the control valve 16, the lubricant under the relatively low pressure of the lubrieating system is momentarily admitted to the wiper motor 8 and also through a feed-back connection 24 into the chamber 23 to lift the valve member 18 and close the by-pass 17. Thereafter, the lubricating system operates wholly independently of the windscreen wiper via the outlet pipe 5 from the lubricating pump 2. A check valve 25 is inserted in the extension 5<SP>1</SP> between the line 9 and the pump 2 to prevent a higher pressure from the line 9 entering and disrupting the lubricating system. A second check valve 27 is arranged in the line 9 between the by-pass 17 and the extension 5<SP>1</SP> to prevent the flow of lubricant into the by-pass 17 from the lubricating system when the wiper is not in use. A constant flow control unit 29 is interposed in the line 9 between the feed-back connection 24 and the wiper motor 8 in order to meter the fluid flow for normal operation and to increase the flow for occasions when the motor is abnormally loaded, e.g. when the wipers cling to a drying windscreen.
Patent GB-1385344-A (GB)
Title: Remote fixture lowering device
IPC: F21V21/38
Filed: 1972-07-18
Abstract: 1385344 Winches; counterbalancing MEYER INDUSTRIES Inc 18 July 1972 33548/72 Addition to 1344942 Heading B8B [Also in Division F4]  A plurality of light fittings (12, Fig. 1, not shown) are fixed to an annular frame (13) which is suspended by cables (17) on sheaves (15, 16, Fig. 2, not shown) in rigid arms (14) at the top of a mast (11). The cables 17 and electric supply cable 19 are joined to an anchor 21 (Fig. 3) which is secured to a counterweight 25 by connectors 26. The counterweight holds the annular frame (13) hard against the rigid arms (14). The annular frame is lowered by inserting a winch 29 into guideways 31 on the counterweight 25 and connecting cable 30 to the anchor 21 (Fig. 4). The winch is operated by a drill 36 to wind in the cable 30 and thereby slacken off the connectors 26 which are then disconnected. The winch is then unwound to lower the annular frame and the counterweight to ground (Fig. 5). The reverse procedure is used to raise the frame and counterweight. The electric supply cable 19 is connected by a plug 24 to a power cable 23.
Patent GB-599123-A (GB)
Title: Improvements in or relating to hydraulic shock absorbers
IPC: F16F9/348
Filed: 1943-10-26
Abstract: 599,123. Hydraulic shock-absorbers. MONROE AUTO EQUIPMENT CO. Oct. 26, 1943, No. 33557/45. Convention date, Sept. 5, 1941. Divided out of 599,071. Drawings to Specification. [Class 108 (iii)] Relates to an hydraulic shock-absorber of the direct acting, piston-and-cylinder type in which flow of liquid through passages in the piston, in both directions of movement of the piston, is controlled by valve means associated with the piston. According to the invention, a closure for one end of the cylinder is provided, having an opening for liquid controlled by a valve, and a peg, the base of which rests on the valve, is adapted to engage and rotate an adjusting plate on the piston-rod to vary the spring loading on a valve controlling flow of liquid through passages in the piston. The invention is described as applied to the shock-absorber forming the subject-matter of Specification 599,071. Specification 599,122 also is referred to.
Patent GB-1376050-A (GB)
Title: Drilling apparatus
IPC: E21B19/00
Filed: 1972-07-18
Abstract: 1376050 Uncoiling flexible elongate material INSTITUT FRANCAIS DU PETROLE 18 July 1972 [22 July 1971] 33599/72 Heading D1T [Also in Division E1] In the use of apparatus for boring by means of a drill (not shown) supported by a flexible pipe 2, the pipe extends from a rotary storage container 1 over a guide 5 and through a feed device 4 into the borehole, a distributor 3 supplying drilling fluid to the pipe whilst the container is rotating. The distributor comprises a stationary part 3a attached to a supply conduit 14, and a part 3b rotating with the container. The container is supported on wheels 11 and driven by motors 13, the speed of the motors being synchronized with that of the feed device. The container may be in accordance with Specification 1373857.
Patent GB-487130-A (GB)
Title: Improvements in and relating to rubber sheeting machines
IPC: B29B7/56
Filed: 1937-02-13
Abstract: 487,130. Rubber sheeting machines. CAIRNS, J. Feb. 13, 1937, No. 33633. Divided out of 489,676. [Class 70] In rubber-sheeting machines a single flexible driving element, such as a belt or chain, is provided, in driving engagement with each of the pairs of rollers. The belt or chain 30 may be associated with a tensioning jockey pulley 32 mounted on an adjustable arm 33. The rollers are mounted with the plane of the nips slightly inclined to the vertical, and guide-plates 14, 15, 16 are provided between the pairs of rollers ; small guide rollers 17, 18, 19 are urged against the travelling sheets of coagulum by means of counterweights or springs, and throw the ends of the sheets against the guide-plates, thus preventing doubling. The plane of the nips may be slightly inclined to the horizontal, and trays of a metal over which the coagulum slides easily, such as brass, copper or stainless steel, are then provided between the roller pairs. The first two pairs of rollers may be of polygonal cross-section, the remainder being cylindrical. The last pair may be marker rollers.
Patent GB-1079201-A (GB)
Title: Photographic camera
IPC: G03B7/085
Filed: 1964-08-19
Abstract: 1,079,201. Photographic cameras. EASTMAN KODAK CO. Aug.19, 1964 [Aug. 20, 1963], No. 33840/64. Heading G2A. A photographic camera comprises a diaphragm blade 5 mounted for movement from a first position towards a second position upon manual operation of an actuating device 9, the blade having a pair of tapered slits 23, 25 therein which form varying masks for a picture-taking aperture 3 and a photo-responsive cell 27 respectively, the latter being subjected to scene illumination, and threshold means responsive to the output of the cell for stopping the movement of the blade when the output reaches a predetermined value. The cell 27 is connected to a battery 29 in circuit with a solenoid 33, which, when energized, attracts an armature 39 the end of which engages in teeth 45 on part of the diaphragm blade. Contact 47 of a flash bulb circuit is opened by movement of the armature 39. A flash bulb 49 is connected to the battery 29, the contact 47 and to spring contacts 53, 55. The contact 53 is closed by depression of the member 9 and the contact 55 is closed when a cover 71 is open, since this allows a control lever 63 to pivot, also uncovering a photocell aperture 73 and setting a shutter speed control lever 75. For daylight operation, the cover 71 is closed so contact 55 is open, the lever 63 partially masks the cell 27 and the shutter mechanism is set for its faster speed. Downward movement of the member 9 allows the blade 5 to rotate until such time as the current passed by the cell 27 causes the solenoid to attract the armature 39, thereby stopping the blade 5. The member 9 is pressed down until the shutter operating lever 61 is activated, the tip 57 of the member 9 closing the contact 53 (but not igniting the bulb since the contact 55 is open). Releasing the member 9 causes a lever 15 to rotate the blade 5 clockwise to its normal rest position. If there is insufficient illumination for a proper exposure, the armature 39 is not attracted and the blade 5 rotates until it contacts a stop 85, a projection 87 causing a "low light" flag 95 to appear in the view-finder. If the scene illumination is inadequate or questionable, the camera may be arranged to provide automatic flash illumination. Opening of the cover 71 closes contact 55, unmasks the cell 27 and sets the shutter speed to a slower setting so that if blade 5 contacts the stop 85, depression of the member 9 closes the contact 53 causing ignition of the bulb 49, and then operation of the shutter. A device to prevent over exposure by stopping the blade 5 from rotating into contact with the stop 85 is provided. In the event of there being sufficient illumination to result in proper exposure with the slower shutter speed, the solenoid is activated to stop rotation of the blade 5 and to open contact 47, thus disconnecting the flash bulb 49. The slit 25 may be replaced by a filter of varying neutral density or by a step wedge as a means for varying the exposure of photo-cell 27.
Patent GB-408054-A (GB)
Title: Improvements relating to machines for the opening, scutching, cleaning and similar treatments of cotton and like fibrous materials
IPC: D01G9/00
Filed: 1932-11-30
Abstract: 408,054. Opening, scutching, and cleaning cotton &c. QUINN, F., 12, Thornley Avenue, Smithills, and WILD, L., Highfield, Victoria Road, Heaton, both in Bolton. Nov. 30, 1932, No. 33881. [Class 120 (i).] In a machine for opening, scutching and cleaning cotton and like fibrous materials the beaters a are formed as fan blades or paddles and deliver the material into the bottom of a swan-neck like delivery shoot g the outer side of the shoot beyond the bend being provided with grid bars i through which air and dust &c. are projected as the material passes therearound. Grid bars c are provided in the beater casing f and closely spaced grid bars h parallel or at right angles to the direction of travel of the fibres, or alternatively perforations, in the bottom of the shoot g. Valvecontrolled ducts admit air to the opposite ends of the beater cylinder while a roller m is traversed by a double worm across the cotton reserve box o to level the cotton therein and facilitate delivery by the rollers p. The grid bars below the track t serve for the escape of air from the fibres in the reserve box o. The cotton may be fed from the machine described in Specification 218,877, [Class 120 (i)], while in converting an existing beater plates b may be secured to the arms to close the gaps therein.
Patent GB-608636-A (GB)
Title: Improvements in or relating to arc welding control systems
IPC: B23K9/073
Filed: 1945-12-14
Abstract: 608,636. Automatic control systems for arc welding. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Dec. 14, 1945, No. 33913. Convention date, Aug. 10, 1944. [Class 38 (iv)] In an automatic arc-welding electrode feed control system, means producing a control voltage for an electrode feed motor include a saturable transformer connected to the arc electrode circuit to develop an arc responsive voltage greater proportionately under arcing conditions than under open circuit conditions. A welding electrode 12, supplied through a transformer 15 from A.C. mains 18, is fed toward work 13 by a D.C. motor 11 connected to a variable voltage D.C. generator 24 driven by a D.C. motor 25 connected to a constant voltage D.C. generator 27 driven by an A.C. motor 28 connected to mains 18. The field 30 of generator 24 is energized by a voltage dependent on arc voltage, obtained through a rectifier 33 and a transformer 32, in opposition to the portion of the voltage of generator 27  obtained from a potentiometer 35, so that the electrode feed is such as to maintain arc voltage constant. With a main switch 19 closed, starting is effected by the operation of relays 38, 40 and 21 in consequence of the operation of a push-button 36 and the electrode is advanced slowly until the arc is struck since a relay 44 is energized by the higher-thannormal voltage from rectifier 33, due to the higher open-circuit voltage applied to transformer 32, to insert a resistance 42 in series with field 30. Transformer 32 is arranged to saturate under these conditions so that its effective ratio is reduced and excessive voltage to rectifier 33 avoided.
Patent GB-1115424-A (GB)
Title: Process of recuperation of alkylamides
IPC: C07C233/00
Filed: 1966-07-28
Abstract: Mono- and dialkylamides, which on hydrolysis yield amines having boiling points lower than that of water, are recovered from mixtures containing them and water and which may additionally contain other solvents, e.g. a light paraffinic hydrocarbon by distilling the mixtures in a distillation column, collecting at the head the light fractions containing water and the alkylamine formed by hydrolysis and also the light paraffinic hydrocarbon if initially present, withdrawing from the said light fractions the water-alkylamine mixture, distilling the alkylamine from the said mixture, eliminating the water and introducing the alkylamine thus collected into the alkylamide withdrawn at the bottom of the main distillation column and containing the organic acid also produced by hydrolysis.  The process is described in detail with reference to the recovery of dimethylformamide from mixtures thereof with water or water and pentane.  Other amides mentioned are mono-methyl formamide, mono- and diethyl formamide, monopropyl formamide and alkylacetamides.  The addition of the amine (e.g. dimethylamine) to the amide-acid mixture withdrawn from the bottom of the column substantially neutralises the acid present (e.g. formic acid) to yield the amine salt (e.g. dimethylamine formate) and the recovered alkylamide containing such salt is suitable for reuse in a solvent extraction process.
Patent GB-1067083-A (GB)
Title: Production of formaldehyde
Inventor: GERLOFF ULRICH
IPC: C07C45/38
Filed: 1964-08-20
Abstract: Methanol is oxidatively dehydrogenated at 450-700 DEG  C. to formaldehyde in the presence of silver crystals on a Cr-Ni steel support, optionally with a minor amount of Mo, Mn, Cu, Ti or Nb also present.  The reaction may be effected in the presence of inert gases or vapours, e.g. steam.ALSO:Formaldehyde is made from methanol in the presence of silver crystals supported on Cr-Ni steel.  Additionally the catalyst may contain Mo, Mn, Cu, Ti or N6.