baber/WOPTO huggingface dataset:
Patent GB-1500702-A (GB)
Title: Heat engine
IPC: F28D19/04
Filed: 1974-03-26
Abstract: 1500702 Gas turbine plant - working fluid  heated indirectly ROLLS-ROYCE Ltd 7 March 1975 [26 March 1974] 13230/74 Heading FIG, F1L and F1S [Also in Division F4]  A heat input device for a heat engine comprises means within which surface burning of a fuel/ oxidant mixture can take place and heat exchange means by which the heat from the hot surface heated by the surface burning may be transferred to the working fluid of the engine. The invention is shown applied to a gas turbine engine comprising an air compressor 10, a passage 13 in which the air is heated and a turbine 15 driven by the heated air and connected by shaft 16 to drive the compressor. The air discharging from the turbine passes through line 17 to a combustion system 12, fuel being supplied at 18 and surface combustion occurring in the matrix 14. The combustion system may comprise a system of tubes through which combustion gases pass, the air passing externally of the tubes being thereby heated. In Fig. 2 the heating system comprises a rotary regenerative heat exchanger 20, the combustion gases passing through sector 22 of the disc where surface combustion occurs and air passing through the remaining sector being thereby heated. In Fig. 3, (not shown), the air is pre-heated in a heat exchanger (30) by combustion gases discharging from the surface combustion system. The combustion/heating system may comprise a bundle of fine silica or alumina tubes. The invention is applicable also to Stirling cycle engines.
Patent GB-578571-A (GB)
Title: Improvements in and relating to the flats of revolving-flat carding engines
IPC: D01G15/24
Filed: 1944-07-11
Abstract: 578,571. Carding-flats. WALSH, D. July 11, 1944, No. 13234. [Class 120 (i)] A carding engine flat 3 is provided with a baffle 4, preferably of L-shape, mounted at 6, 7 for limited vertical and swinging movement, the baffle covering the space 9 between two adjacent flats and being furnished with means, e.g., stops 8 which, by contact with the adjacent flat, prevent the baffle from being trapped between them as the gap therebetween closes after rounding a curve. The baffles extend the full length of the flats and prevent fluff &c. from passing between flats into the atmosphere.
Patent GB-147540-A (GB)
Title: Improved arrangement for the optical projection of pictures
IPC: G03B21/10
Filed: 1920-05-13
Abstract: 147,540. Petra Akt.-Ges. f³r Elektromechanik. July 14, 1919, [Convention date]. Drawings to Specification. Optical-projection apparatus.-A projector is housed in a room separate from the auditorium, the pictures being projected on to the back of the screen by inclined mirrors.
Patent GB-552680-A (GB)
Title: Improvements in or relating to gripper mechanism for feeding blanks to platen and other machines
IPC: B65H5/14
Filed: 1941-10-15
Abstract: 552,680. Cutting-out presses. BOBST & FILS SOC. ANON., J. Oct. 15, 1941, No. 13281. Convention date, Oct. 16, 1940. [Class 31 (i)] [Also in Group XVI] Sheets are fed to platen presses or other machines by means of grippers comprising a gripper bar 1 attached to feed chains and having a thickness not substantially less than that of the chains, the bar constituting one jaw 10 of the grippers and the other jaw being formed of either a number of pivoted grippers 7, Fig. 2, mounted in recesses 6 in the bar and normally closed by the action of springs 9 which cause the forward bent ends 11 of the grippers 7 to engage the jaw 10 or of a number of spring members 14, Fig. 4, secured by screws 13 to the gripper bar 1 and normally pressing on a wear-resisting plate 15 secured to the bar 1 which is fitted with a number of plungers 17 adapted to be pressed upwards to cause enlarged heads 18 to open the grippers for the reception or delivery of the sheets or blanks. In each case the jaws are opened by pressure applied in the direction of the arrow 12.
Patent GB-133145-A (GB)
IPC: B66D5/00
Abstract: 133,145. Kingsland Research Syndicate, and Torazzi, M. F. Oct. 1, 1918. No Patent granted (Sealing fee not paid). Watches; regulating- gear; driving - gear; brakes. - Relates to winches &c. of the kind in which the driving- shaft is automatically disengaged from the load when the winding- drum begins to reverse. The primary driving- shaft A is fitted with a handle on the end a and carries wide pinions a<1> gearing with spurwheels c, c' on the second shaft C, which turns within a fixed sleeve H on which the drum B is mounted. The pinion c is geared to the drum by a dog-clutch b, and, when the drum reverses, a one-way clutch e is held to the casing h<1>, so that a cam E on the clutch operates a cam-surface c<3> on the second shaft and slides it axially, thus declutching the drum and applying a braking-surface c<4> on the shaft against the fixed sleeve to prevent any further movement of the driving-shafts. After declutching, the backward movement of the drum is resisted by a permanently-loaded band brake f, F connected with the drum by a one-way clutch.
Patent GB-133179-A (GB)
IPC: C23C2/10
Abstract: 133,179. Thompson, R. W., and Morrison, J. Oct. 14, 1918. Coating coating by dipping; fluxes.-In a process of coating metals with lead or its alloys, such as a lead-antimony alloy, the article, preferably heated, is coated with a flux consisting of sal-ammoniac, hydrochloric acid, and zinc, and the molten lead &c. is applied, for example, by dipping, pouring on, or casting, without tinning the surface of the article. The flux may be used as a solution, or it may be evaporated to dryness and used in a molten condition or in the form of sticks, blocks, or powder, or rendered fluid by mixing with hydrochloric acid and zinc.
Patent GB-907926-A (GB)
Title: Improvements in or relating to the production of trimellitic acid and trimellitic anhydride
IPC: C07C51/265
Filed: 1961-04-13
Abstract: A process for the production of trimellitic acid comprises in a first stage oxidising pseudocumene in the liquid phase with a molecular oxygen containing gas in the presence as catalyst of a cobalt or manganese salt or mixtures thereof to form a partially oxidised mixture corresponding approximately to the formula C6H3(COOH)x(CHO3)3-x where x is within the range 1.3 to 1.8 and in a second stage oxidising the said mixture further to trimellitic acid by treatment with nitric acid at an elevated temperature.  The trimellitic acid thus obtained may be dehydrated to give trimellitic anhydride by a heat treatment e.g. heating at 230-235 DEG C.  The first stage oxidation is preferably carried out at 190-220 DEG C. in acetic acid solution using air as the oxidant and cobalt and/or manganese acetate, nitrate or naphthenate as catalyst.  The nitric acid oxidation is preferably carried out under pressure at 180-85 DEG C. after the volatile components and diluent, if any, have been removed from the mixture.  Examples are given.
Patent GB-1570266-A (GB)
Title: Roots blowers
IPC: F04C27/00
Filed: 1978-04-05
Abstract: The Roots pump has a suction chamber (2) with two pistons (3) and at least one oil-filled side chamber (7) which is divided from the suction chamber by a partition (5). Supported in the partition (5) there are the piston shafts (4). In order to prevent oil droplets and oil mists from crossing into the suction chamber (2) through the shaft bearings (10), a pressure equalisation duct (13) is provided, whose suction chamber-side mouth is situated at the point where the shaft (4) passes through. Part of the pressure equalisation duct may run outside the partition (5) and pass through a filter (17). <IMAGE>
Patent GB-593266-A (GB)
Title: Means for sealing adjustable pivots of rotatable bodies such as measuring elements of measuring tools
IPC: G01B3/40
Filed: 1945-05-28
Abstract: 593,266. Sealing devices. AKTIEBOLAGET C. E. JOHANSSON. May 28, 1945, No. 13358. Convention date. May 31, 1944. [Class 146 (ii)] [Also in Group XIX] Sealing means for the adjustable pivot of a rotatable body such as a thread gauging roll of a limit thread snap gauge is shown in Figs. 1 and 2. The pivot 3 is provided with an enlarged head 9 provided with a pocket 10 which receives a seal 12. A screwdriver slot is formed by a hole 15 drilled transversely through the head 9 and a slot then cut between the hole and the bottom of the pocket. In a modification a separate washer is wrapped round the head of the pivot to form the pocket.
Patent GB-611576-A (GB)
Title: Improvements in machines for doubling or twisting yarns threads and the like
IPC: D01H1/10
Filed: 1946-05-03
Abstract: 611,576. Twisting yarns &c.. DUNLOP RUBBER CO., Ltd., and LANGSTRETH, M. May 3,1946, No. 13453. '[Class 120(ii)] In disc doubling machines of the kind in which two twists are imparted for each revolution of the disc-carrying spindle and in which a yarn package support hangs freely from a sleeve mounted on the spindle, a guide for maintaining a balloon of the yarn clear of the package is disposed between the disc and the take-up point and is mounted on the sleeve so as to be independently supported with respect to the package. The guide may be an additional disc 11 mounted on the opposite side of the package 9 from the rotary disc 2 and supported by rods 13 fixed to an arm 12 attached to the sleeve 4, from which a member 6 with a packagecarrying arm 5 is suspended by a hinge. A wire yarn guide 17 of inverted Y-shape is attached to the arm 12 with the centre of the Y in line with the hollow spindle 1. A pendulum member 14 is hung from a pin 15 on the disc 11 immediately below the disc centre to damp vibrations. In a modified form, the yarn guide disc may be rotatable, in which case a pendulum may be attached to the disc supporting frame. The guide disc may be perforated to reduce its weight or a ring may be used. Alternatively, the guide disc may be replaced by a freely swingable light flyer. If the flyer is too light to resist distortion, a disc may be additionally employed. Specification 388,570, [Class 120(ii)], is referred to.
Patent GB-963376-A (GB)
Title: Improvements in methods of manufacturing electrical contact-blades
Inventor: BEATTIE ROBERT WILSON
IPC: C23C18/16
Filed: 1962-04-07
Abstract: <PICT:0963376/C6-C7/1> <PICT:0963376/C6-C7/2> <PICT:0963376/C6-C7/3> A method of making electrical contact blades 10 having limited regions, embracing the contact-making areas plated with precious metal comprises applying to a 0.020 inch strip, of preferably phosphor bronze, bands 19, 20 of plating-resistant varnish, e.g. by roller or spraying means, blanking the strip to form a succession of contacts 16 connected by tags 17 showing positioning perforations 18, immersing a length of the strip in a plating solution so that the right hand contact portion 11 only is immersed up to the mid-point of the resist strip 19 and plating by the electroless or electrolytic method the exposed areas thereof with, e.g., gold or platinum to a thickness of 0.0002-0.0003 inch.  Subsequently the strip is cleaned and if necessary the plating resistant removed, prior to dipping the left hand tag portions 13 of the strip into a molten tinning bath and passing the strip through a press tool to blank and form the finished blade 10 therefrom.  The plating-resistant bands may be applied to the strip after the initial blanking operation.  The blades may be used in multi-point plugs and shelf jacks for telephone systems.
Patent GB-470719-A (GB)
Title: Device for denicotining tobacco
IPC: A24B15/20
Filed: 1936-05-13
Abstract: 470,719. Tobacco. LIPPMANN, L. May 13, 1936, No. 13572. Convention date, May 13, 1935. [Class 130] Denicotined tobacco is obtained by bacterial fermentation in a fermenting vessel 10. The tobacco is placed in chambers in a rotary drum 13 and air, supplied by a compresser 2 through a pipe 7 is passed through porous and /or hollow ceramic bodies into water in the vessel. Escaping gases pass through a pipe 23 controlled by a valve 25. Any excess of alkalinity is removed by forcing acid from a reservoir 5 into the pipe 7 through a nozzle 17 which discharges in front of a nozzle 18 branching from the pipe 7. The air supplied by the compresser is freed from oil in a separator 4, and the pressure in the pipe 7 is communicated to the reservoir 5 through a pipe 8. The pipes 7, 8 and the nozzles 17, 18 are controlled by valves 26, 27, 28, 29. The vessel 10 is kept between 25 and 40‹ C. by a hot water jacket 24. After one batch of tobacco has been denicotined, further batches are treated in the same liquor and the liquor remaining at the end sprayed on the first batch. Specifications 364,464 and 395,458 are referred to. The Specification as open to inspection under Sect. 91 also states that the tobacco may be denicotined while carried on widemeshed grids and that the gases escaping from the pipe 23 pass through a cooler which condenses the aromatic substances. Excess alkalinity is neutralized by an organic acid such as citric acid. This subject-matter does not appear in the Specification as accepted.
Patent GB-330093-A (GB)
Title: A device or appliance for use in connection with refuse dustbins
IPC: B65F1/16
Filed: 1929-05-01
Abstract: 330,093. Stuart Surridge & Co., Ltd., and Surridge, P. May 1, 1929. Dust-bins. - To enable a dustbin, after the lid has been removed, to be transported and emptied without the contents falling or being blown out, a shoot 2 of canvas or other flexible material is secured to the mouth of the dustbin 1 by a cord 3 provided at its ends with engaging hooks 4 and falls over, as shown, to form a closure for the dust-bin. A spring 5 may be embodied in the cord 3. One of the hooks 4 may be replaced by an eye or ring and the shoot 2 may be faced on its inner surface. with rubber.
Patent GB-254853-A (GB)
Title: Improvements in or relating to delivery mechanism for printing machines
IPC: B65H29/04
Filed: 1925-05-25
Abstract: 254,853. Barker, R. W., (American Bank Note Co.). May 25, 1925. Delivery apparatus.-In a sheet-delivery apparatus for printing-machines in which the sheets are taken from the impression cylinder by grippers 28, 30, Fig. 2, on endless chains 19 and are carried to a receiving-table 15, the chains 19 are so guided by sprocket wheels 17, 20, 21, 23 that they travel in substantially parallel reaches to and from the impression cylinder, upon a decline toward the end of the table most remote from the printing-couple, and then above and parallel with the table so as to turn the sheet completely before delivery. Means are provided for forcing the sheet toward the table when released by the grippers, and for checking the forward movement thereof, and tensioned wires 36 are provided to support the rear ends of the sheets when being carried by the grippers. The turning of the sheet is facilitated by discs 35 on the shaft 16 of the sprocket wheel 17, these discs having recesses to receive' the grippers so as to allow their peripheries to support the sheet. A cam 34 adjacent to the forward edge of the table 15 actuates the grippers to release the sheet which is pressed . towards the table by oscillating presser fingers 47 actuated from the shaft 16. Spring-controlled stops 72 check the forward movement of the sheet, and side and end joggers 78 are then actuated to true up the top portion of the pile of sheets. Each side jogger is slidably mounted and is moved inwardly against the action of a spring by an oscillating cam 85 engaging a projection 84 on a frame 83 carrying the side joggers. The end jogger 78 is reciprocated from the shaft of the cam 85, which is actuated from the shaft 16. The wires 36 supporting the rear end of the sheets when being carried by the grippers pass over rollers 37, 38, one 37 of which is driven from the shaft 16. A roller 41 carried by a screw-adjusted arm 42 serves to keep the wires at the required tension. The table 15 has antifriction rollers 68 engaging vertical slideways in the machine frame and is raised or lowered by a chain 54 attached to a winch 56, which is operated by a hand-wheel 61 to lower the table as sheets accumulate and can be driven from the shaft of the sprocket wheel 20 through a chain 65 and clutch 64 so as to raise the table rapidly for starting the delivery of a fresh pile. Gripper mechanism.-Each gripper, Fig. 4, is carried by fittings 25 on the chains 19 and comprises one rod 27 fixed to the fittings 25 and carrying platens 28, and a second rod 29 journaled in the fittings and carrying gripper fingers 30 to engage with the platens. Coiled springs 31 normally close the grippers, which are opened by the engagement of cams with a crank arm 32 on the rod 29.
Patent GB-1216109-A (GB)
Title: Process for the production of nitroaminodiaryl ethers
Inventor: SCHRAMM JURGEN
IPC: C07C/
Filed: 1968-03-21
Abstract: 1,216,109. Nitroaminodiaryl ethers. FARBENFABRIKEN BAYER A.G. 21 March, 1968 [27 April, 1967; 14 July, 1967], No. 13615/68. Heading C2C. Nitroaminodiaryl ethers are prepared by reacting an amino phenol of general formula in which An<SP>1</SP> is an aromatic radical, R is an alkyl or alkoxy radical or halogen and x is 0 or an integer from 1 to 6, with a nitrohalobenzene of general formula in which An<SP>2</SP> is a phenylene radical, Hal is a halogen atom o- or pto a nitro group, R<SP>1</SP> is alkyl or alkoxy or halogen in o-position to the halogen already present, y is 1 or 2 and z is 0-3 or 0-2 if R<SP>1</SP> represents halogen, in the presence of the stoichiometric amount of the phenolate, an alcoholate or a hydroxide of an alkali metal in a polar solvent at 20‹-150‹ C. Examples are given of the preparation of 4 - (41 - nitrophenoxy)aniline; 3 - (4<SP>1</SP>- nitrophenoxy)- aniline; 4 - (2<SP>1</SP> - nitrophenoxy)aniline; 4 - (4<SP>1</SP>- nitrophenoxy) - 2 - chloro - aniline; 7 - (4<SP>1</SP> nitrophenoxy) - 2 - naphthylamine; and 4 - (21- chloro-4<SP>1</SP>-nitrophenoxy)-aniline.
Patent GB-738003-A (GB)
Title: Can body forming and seaming mechanism
IPC: B21D51/28
Filed: 1952-05-29
Abstract: 738,003. Making cans. HUDSON CAN MACHINERY CO. May 29, 1952 [June 2, 1951], No. 13674/52. Classes 83 (2) and 83 (4). Angular bending; seaming.-A can-forming and seaming machine has a releasable member for holding a blank against a horn, pivoted wings for wrapping the blank about the horn, with hooked edges interlocked, and a reciprocating hammer for setting the locked edges into a seam, the blow of the hammer being cushioned by means interposed between the operating mechanism therefor and the frame of the machine. The operating mechanism is also releasable in response to abnormally high pressure of the hammer on the seam. A blank B with reversely hooked edges, e.g. prepared by apparatus described in Specification 677,763, is fed by spring fingers 532, Fig. 4, on bars 534 between the former 106, 108 and a shoe 196, between side guides 310 and against stops thereon which arrest it correctly on the former. A cam-operated lever 264, Fig. 10, is then moved to release a wedge 208 so that its spring 240 advances it to move the shoe 196 down, and wings 276 are moved down by rods 294 and angularly-adjustable cranks 298 to hook the edges together, the blank B being released by the guides 310 which are moved down by adjustable rods 332 and angularly-adjustable cams 346. The wing engaging the end of the blank having the upwardly-turned hook is arranged to be slightly in advance of the other. The parts 106, 108 of the former are then separated against the action of springs 116 by wedge surfaces on a rod 134 moved axially through linkwork by a cam-faced lever 194 engaged by a crank-lever 179 oscillated by a rod 182 and crank 62. The lever 179 transmits its movement, through an overload release 466, to a lever 436 on the same pivot 180 which operates the slotted lever 400 of a toggle 400, 394, to press the die 374 twice against, and thus lock, the seam. The former 106, 108 is then allowed to contract, the wings &c. are returned and the can body is ejected by a feed-bar 126, as a new blank is fed, and may proceed to soldering or other processing means. The drive for the wings 276 and guides 310 is adjustable relative to that for the crank 62 by a coupling comprising an internally-toothed sleeve 530 engaging externally-toothed sleeves 516, 528 on the shafts 74a, 74b. The overload-release 466 opens a normally-closed switch in the circuit of the driving motor and thus stops the machine.
Patent GB-933382-A (GB)
Title: Improvements in or relating to nuclear reactor fuel elements
Inventor: TAYLOR ANTHONY FRANCIS
IPC: G21C3/08
Filed: 1960-04-19
Abstract: 933,382. Fuel elements. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. March 27, 1961 [April 19, 1960], No. 13743/60. Class 39 (4). A fuel element has heat transfer fins 3 and flow splitters 4, the latter being at least partly embraced by shrouds 5. The fuel 6 and end caps 9 are separated by thermal insulation 10 and have grooves into which the sheath 7 is pressed.
Patent GB-463541-A (GB)
Title: Improvements in cleaning and polishing devices for attachment to vacuum cleaners and the like
IPC: A47L11/162
Filed: 1936-06-08
Abstract: 463,541. Cleaning-appliances. GROSE, W. T., and HARRISON, W. M. June 8, 1936, No. 13779/35. [Class 138 (i)] [Also in Group XXVIII] Suction is applied to an impeller turbine A by attachment of a vacuum cleaner hose to nozzle B or by application of compressed air through a peripheral slot. The turbine drives a cleaning or polishing brush or pad J either directly or through gear wheels G, G<1>, the brush being readily detached from the wheel G<1>. An extension of the turbine housing forms a cover K for the brush and carries a fixed semicircular brush M ; a telescopic or other handle O is provided.
Patent GB-675537-A (GB)
Title: Improvements in or relating to the purification of sugar liquors
IPC: C13B20/06
Filed: 1949-05-24
Abstract: 675,537. Purifying saccharine liquids. DUCHENNE, J. O. May 24, 1949, No. 13805/49. Class 127. Sugar cane or other sugar juices are purified by liming, preferably with milk of lime containing 4 per cent of magnesia, filtering off the precipitate, and then sulphiting. The juice is first heated to 50-60‹ C. to avoid destruction of the reducing sugars, and milk of lime is then added to raise the pH to approximately 11.05, the addition being continuous and under the control of an electric pH meter. If the acidity of the juice is abnormally high, it is first corrected by the addition of lime or sodium carbonate. In some cases, liming can be carried out in two stages, first to a pH of 9.5-9.6, the precipitate being removed before the second stage is carried out. After removal of the precipitate, sulphur dioxide is added to reduce the pH to 5.9-6.5 whereby the excess lime is precipitated, colloids not precipitable by lime are coagulated, and the juice is bleached. The pH is then again adjusted, by the addition of milk of lime, to 7.7-7.8 whereby further precipitation occurs, and the excess lime is removed by addition of a clarifier such as phosphoric acid whereby the pH is adjusted to 7.0-7.4. The juice is finally filtered.
Patent GB-903467-A (GB)
Title: A double cam device for the control and selection of the needles of circular knitting machines and the like
IPC: D04B15/32
Filed: 1960-04-20
Abstract: 903,467. Knitting-machines. FABRIQUE NATIONALE D'ARMES DE GUERRE S.A. April 20, 1960 [April 24, 1959; April 15, 1960], No. 13823/60. Class 74 (2). Needle raising and lowering cams 17, 12 are mounted on the ends of slides 16, 11 retained in a housing 1. The cams are urged into an operative position by springs 35, 34 and are withdrawn from that position by ends 25, 24 of a pin mounted on a spindle so that as the spindle is rotated the pin engages in a slot in either the slide 16 or slide 11 to withdraw its cam from its operative position. The ends of the slides carry adjusting-screws 19, 14 for limiting the inward movement of the cams.