baber/WOPTO huggingface dataset:
Patent GB-564519-A (GB)
Title: Improved barring mechanism
IPC: F16K11/07
Filed: 1943-03-03
Abstract: 564,519. Turning - gear. SVENSKA TURBINFABRIKS AKTIEBOLAGET LJUNGSTROM. March. 3, 1943, No. 3525. Convention date, April 9, 1942. [Class 7 (v)] [Also in Groups XXVI and XXIX] In a hydraulic barring mechanism for the rotors of turbines, engines, &c., in which fluidactuated pistons 11 act through pivoted pawls 14 engaging wheels 5 on the shafts 2 of the rotor 1, automatic means is provided for limiting the pressure of the fluid on the pistons at the end of their stroke by opening a fluid outlet under the control of the, fluid pressure ; the shafts 2 may be the oppositely rotating shafts of a radial-flow turbine of the double-rotation type. At the end of the return stroke, effected by a spring 17, the pawl is withdrawn from the wheel 5 by the engagement of a lug 18 on the pawl with a member 47. The supply of the pressure fluid (e.g. oil) from a pump 12 through pipes 23 is controlled by a two-way valve 15, Fig. 2, comprising pistons 261, 26<11> integral with a stem 26 and operated by a handle 28. In the normal position shown, the valve is pressed by a spring 27 against the bottom of the casing, the conduit 16 being connected to a return conduit 22 and the pipes 23 being cut off from the pump. Any liquid remaining in the pipes 23 can escape through a discharge pipe 34. On raising the valve to its -upper position, the conduits 16, 23 are connected and the pistons 11 operated. A spring-loaded safety valve 29 allows any excess pressure to escape to a discharge pipe 35. Oil from the hydraulic cylinders 7 may be conveyed by pipes 20 to the bearings 4 of the rotors 1 to facilitate the barring operation. In a modification, Fig. 5, oil for lubrication is conveyed from the twoway valve 15 direct to the rotor bearings before its admission to the hydraulic cylinders. For this purpose the valve member 26<11> is fitted with a sleeve valve 40 normally held by a spring 41. on a seat in the valve member 26<11> so that when the valve 15 is opened, oil from the pump conduit 16 first passes through an outlet 20 to the rotor bearings, until its pressure is sufficient to raise the valve 40 against its spring 41 and admit the oil through the pipes 23 to the hydraulic cylinders.
Patent GB-534442-A (GB)
Title: Improvements in or relating to photographic shutters
IPC: G03B9/08
Filed: 1940-02-26
Abstract: 534,442. Photographic shutters. KODAK, Ltd. Feb. 26, 1940, No. 3545. Convention date, March 14, 1939. [Class 98 (i)] A photographic shutter comprise a plate 9 having an exposure apertur 25 surrounded by an embossing 30 in which engages a complementary embossing 31 on a pivoted shutte blade 22 when the latter is in its position of rest after 'an exposure, the two embossings providing a light lock and serving to prevent rebound of the blade. In the form shown, the blade moves in alternate directions to make the exposures, an embossing 31 being formed at each end. It is operated by a snapover spring 20 tensioned by an arm 15 which is rocked in alternate directions about its pivot 16 by means of a flexible blade 13 carried by an operating slide 12, the blade engaging alternately each of a pair of notches 14 formed in the arm 15. The invention is also described as applied to a shutter comprising a rotary blade operated by a snap-over spring in one direction to make the exposure and in the reverse direction when the trigger is released, a cover plate attached to the trigger masking the exposure aperture during the return movement.
Patent GB-394056-A (GB)
Title: Improvements in or relating to torpedos
IPC: F42B19/40
Filed: 1932-02-08
Abstract: 394,056. Torpedoes. GRASEBY, R. C., Kingston By-Pass Road, New Malden, Surrey. Feb. 8, 1932, No. 3661. [Class 9 (ii).] In torpedoes, especially for blowing off ballast water from the dummy practice head to cause the torpedo to come to the surface at the end of a practice run, a mechanism is provided comprising a motor operated by fluid pressure in two stages, once by reduced pressure when the torpedo runs and a second time by increased pressure when torpedo sinks at the end of run, for releasing a spring motor or the like for performing the desired function, for example for allowing air into the dummy head. As shown in the Figure, the fluid pressure motor comprises a diaphragm 3 connected by a rod 10 to a bell-crank lever 11, 13 pivoted at 12 and connected by a link 14 to a crank 15 on a spindle or barrel 16. The bell-crank lever is also connected to two adjustable springs 38, 42. The inner side 4 of the diaphragm chamber is at atmospheric pressure, and the outer side 5 of the chamber is connected to the outside of the torpedo by a small tube 6 bent towards the rear and situated in a groove 8 in a dome-shaped part 9, the groove 8 being preferably of venturi shape. The spindle 16 is geared to a similar spindle 17 by pinions 18, 19 ; and both spindles are notched to allow a finger or pawl 24 to pass through in two stages. The finger 24 is pivoted at 25 to an arm 22 and is held in position by a spring 26. The arm 22 is pivoted at 23 ; and another cam 28 is pivoted to it at 29 and is formed with a shoulder 28<A> adapted to engage a stop 128, and with a hook-like jaw adapted to be engaged by a pin 31 on a crank 32 on a spring drum 34. When out of action, this crank is at 32<A> against a stop 46 ; and when the drum is wound up in a clockwise direction, the crank is brought to the position 32, and in doing so engages the hook 28, withdraws its shoulder 28<A> from the stop 128 and moves it to the position shown. In this movement, the hook 28 carries the arm 22 with it, the spring 26 allowing the finger 24 to rock and ride over the spindles 16, 17. The finger then bears on the spindle 16 and the spring drum mechanism is held cocked. When the torpedo is launched, the flow of water past the tube 6 causes a reduction of pressure in the chamber 5, the bell-crank lever 11, 13 rocks in one direction, and the notch of the spindle 16 comes opposite the finger 24 and allows it to pass through to the spindle 17 where it remains until the torpedo sinks. When this occurs, pressure in the chamber 5 increases, the bell-crank lever is rocked in the opposite direction, and the notch of the lever 17 releases the finger 24, whereupon the spring drum 34 drives its crank round against the stop 46. A link 35 connects the crank to a piercing pin 37, which is thus thrown up and immediately withdrawn, this action serving to puncture a sealing disc (not shown) thereby allowing compressed air to flow into the dummy head of the torpedo.
Patent GB-172242-A (GB)
Title: Improvements in holders or stands for feeding bottles, medicine bottles and the like
IPC: A61J9/06
Filed: 1921-01-31
Abstract: 172,242. Takani, K. Jan. 31, 1921. Feeding-bottles, holders, stands, and the like for; handles.-A stand or holder for feeding-bottles, medicine bottles, &c., comprises a wire frame bent to form a loop a to grip the neck of the bottle, and continued to form legs a', a<2>. The legs are bent back upon themselves to form hooks a<3>, a<4> and portions as, a<6> for gripping the tube C. In use, the legs may comprise a stand, a handle, or a hook for supporting the bottle upon a nail or on the edge of a vessel.
Patent GB-823106-A (GB)
Title: Improvements in packed glands for rotating shafts
Inventor: BILD FREDERICK
IPC: F16J15/26
Filed: 1957-02-04
Abstract: 823,106. Stuffing-boxes. IMPERIAL CHEMICAL INDUSTRIES Ltd. Jan. 3, 1958 [Feb. 4, 1957], No. 3743/57. Class 122 (5). In a gland for a rotating shaft 1, in order to prevent overheating and wear of the shaft, the packing is forced by means carried by the shaft into contact with the shaft and constrained to rotate therewith and the gland housing 3 is cooled. Packing rings 7-12 of trapezoidal section are arranged in pairs and compressed between trapezoidal section bottom and top rings 13 and 14 and separating rings 15 and 16 by bolts 18 threaded in a collar 17 clamped to the shaft, the bottom ring abutting a steel ring 6 fixed to the shaft. The area of each packing ring in contact with the shaft is greater than the area in contact with the housing so that the rings are frictionally constrained to rotate with the shaft. The drive between the packing and the shaft may be made more positive by roughening the shaft where it contacts the packing or the packing may be keyed to the shaft. The packing rings are split and in each pair the splits are arranged diametrically opposite to each other. The rings 13, 14, 15 and 16 may be of metal or hard synthetic plastic, e.g. nylon. Cooling liquid is circulated through a jacket 19 surrounding the housing 3.
Patent GB-339864-A (GB)
Title: Improvements in appliances for displaying advertisements and other announcements by means of aircraft
IPC: F41J9/10
Filed: 1930-02-04
Abstract: 339,864. Udet-Schleppschrift Ges., (Assignees of Udet, E.). Jan. 7, 1930, [Convention date]. Addition to 291,396. Flag signals. - In apparatus for signalling or displaying advertisements from aircraft bv means of flexible sheets attached to a cable 2 which carries a weight 3 and hangs substantially vertically from the aircraft 1, as described in the parent Specification, the sheets 4, 5 are each formed as a triangle having its base attached to the cable and its longest side 11 on top. The apex 13 is rounded. A number of such cables may belowered or raised by separately actuated drums. driven by a winch on the aircraft.
Patent GB-120838-A (GB)
Title: A Process for the Manufacture and Production of Alumina.
Inventor: DUTT ERIC EDWARD
IPC: C01F7/164
Filed: 1918-03-04
Abstract: 120,838. Dutt, E. E., and Dutt, P. C. March 4, 1918. Alumina; arsenious acid; barium, calcium, magnesium, and strontium aluminates; arsenious chloride.-A mixture of calcined clay or bauxite, or both, with calcium or other alkaline-earth chloride, is heated to bright redness in a .stream of arsenious oxide vapour, producing arsenious chloride, which is decomposed by steam into arsenious oxide and hydrochloric acid, and an aluminate. The residue is dissolved in hydrochloric acid and treated with calcium aluminate to precipitate alumina and re-form calcium chloride, which, after the addition of some lime to precipitate the iron, may be used again.
Patent GB-865921-A (GB)
Title: Improvements relating to serial timing units using transistors
Inventor: CLOOT PETER LEONARD
IPC: H03K5/15
Filed: 1958-02-05
Abstract: 865,921. Multi-stable-state transistor circuits- ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 5, 1959 [Feb. 5, 1958], No. 3794/58. Class 40(6) [Also in Group XIX] A multi-stable-state circuit comprises a chain of transistor bi-stable pairs in which shift pulses are applied to all of the pairs to change them all to a given state if they are not already in that state, the change of any pair to the given state causing the state of the next pair in the chain to be changed so that each pair in turn changes its state to produce an output signal. Fig. 1 shows a shifting circuit comprising pairs of bi-stable transistor circuits Dl, D2 . . . D4 to all of which input shifting lock pulses S are applied via a shift stage to a common shift line. Only one of the stages Dl, D2 . . . D4 is in the "set" state and all the other stages are in the "reset" state and if the normal pulse which appears at the outputs P1, P2 . . . P4 is a binary 0 then when any stage changes its state a binary 1 will be produced at its output. Fig. 2 shows a portion of the chain in which the stage Dl comprises reciprocally coupled PNP transistors T1, T2 functioning as a bi-stable pair. In the "reset" state transistor T1 is cut-off and transistor T2 is conductive. The shift stage comprises a PNP transistor TS which is normally conducting but is cut-off by the application of a shift pulse S to its base via a C, R network so that the transistor reverts to its conducting state after an interval. If stage Dl is in the "set" state so that transistor T1 is conductive, when the transistor TS of the shift stage is cut-off by the application of a shift pulse S, transistor T1 is cut-off thus causing transistor T2 to be rendered conductive and a negative going ONE pulse to be produced at the output of the stage P1. The positive-going voltage step at the end of this pulse is also applied to the succeeding stage D2 and causes the stage to change from the "reset" to the "set" state in which state it will remain until the next shift pulse is applied to transistor TS. Thus as will be seen the "set" state is progressed along the chain which may be a closed loop to produce binary ONE pulses at outputs P1 &c. consecutively.
Patent GB-220006-A (GB)
Title: Improvements in or relating to alloys
IPC: C22C37/06
Filed: 1923-02-09
Abstract: 220,006. Hadfield, Sir R. A. Feb. 9, 1923. Alloys.-Iron alloys contain up to 3.5 per cent of carbon, above 1.3 up to 8 per cent of silicon, above 8 up to 40 per cent of chromium, and about 1-10 per cent of tungsten, with or without 20-50 per cent of nickel, and with or without 0.5-10 per cent of manganese. The tungsten may be replaced wholly or in part by molybdenum, and in some cases up to 6 per cent of one or more other metals, such as cobalt, vanadium. titanium, copper, and aluminium, may be included.
Patent GB-958062-A (GB)
Title: Thermosealable coated polyethylene terephthalate films and process for preparing them
IPC: C08J7/052
Filed: 1961-02-02
Abstract: A thermosealable coated film comprises a polyethylene terephthalate film coated on one or both sides with a vinyl chloride copolymer containing at least 50% of vinyl chloride and may be produced by coating the film with a solution or dispersion of the vinyl chloride copolymer and then removing the diluent of the solution or dispersion.  The copolymer may be a copolymer of vinyl chloride with a vinyl, halogenated vinyl, acrylic, methacrylic, allyl, olefinic and/or halogenated olefinic monomer, e.g. vinyl acetate, butyl acrylate, 2-ethylhexylacrylate, methylmethacrylate, acrylonitrile, maleic anhydride, or vinylidene chloride, or a mixture of two or more thereof.  The copolymer may be of vinyl chloride/2-ethylhexylacrylate/methyl methacrylate in the proportions 70/25/5; vinyl chloride/2-ethylhexylacrylate/acrylonitrile in the proportions 70/25/5; or vinyl chloride/butylacrylate/acrylonitrile in the proportions 65/30/5.  The copolymer may be employed together with another vinyl chloride copolymer containing at least 50% vinyl chloride, e.g. vinyl chloride-vinyl acetate copolymer.  The copolymer solution or dispersion may contain a plasticizer, stabilizer, pigment and/or filler.
Patent GB-949396-A (GB)
Title: Method of roasting
IPC: A23F5/04
Filed: 1961-02-02
Abstract: 949,396. Roasting granular materials. JABEZ BURNS & SONS Inc. Feb. 2, 1961 [Feb. 19, 1960], No. 4023/61. Heading A2Q. Organic granular materials, e.g. coffee and cocoa beans, peanuts, cereals, pelleted vegetables, are roasted by being passed layerwise down a tubular conduit forming a roasting chamber and up which a stream of hot gases is passed. In the apparatus shown coffee beans fed into a conduit 10 via a volatiles escapepreventing air lock space 23c enclosed by slides 23a, 23b, are confined by successive shelves 24, and roasted by rising hot gases from a burner 17 which pass through slots in the shelves and agitate the beans without disrupting the layers. By a suitable timing mechanism the shelves are actuated to empty the lowest shelf first and then the next highest, each layer of beans falling through to the next shelf below through the slots, which are widened by the sliding across of lower gratings 26 (Fig. 3) to each shelf. The completely roasted beans from the lowest shelf leave through a rotary discharge valve 22 whilst exhaust gases, volatiles, dust and chaff are vented through a pipe 13 e.g. to a cyclone separator. A blower 14 and a pipe 18 supply air and burner fuel, respectively. Other forms of apparatus are described in which the burner is located in the air supply pipe 18, or halfway up the conduit 10 the lower part of which then serves as a cooling device and is equipped with a similar system of support trays 24. Trays are described comprising three separate reticulate grids the lower two of which are slidable to widen the small rectangular gas holes to allow the beans to drop through. By way of example the hot gases may initially be at 400 to 800F. the exhaust gases at 140 to 150F. and the temperature drop across each layer 25 to 50F.
Patent GB-1285835-A (GB)
Title: Process for the preparation of 1,3-cyclohexylene diisocyanates
IPC: C07C265/14
Filed: 1970-01-28
Abstract: 1285835 1,3-Cyclohexylene diisocyanates BASF WYANDOTTE CORP 28 Jan 1970 [5 Feb 1969] 4198/70 Heading C2C 1,3-Cyclohexylene diisocyanates are prepared by (a) contacting a solution of at least one 1,3- cyclohexanediamine represented by the formula in which each R is hydrogen or methyl, in an inert solvent with hydrogen chloride to form the dihydrochloride of the amine and (b) contacting the reaction mixture from (a) with phosgene at 0-250 C. to form the corresponding diisocyanate. The process may be carried out at superatmospheric pressure. The inert solvent may, for example, be an aromatic hydrocarbon which may be chlorinated, a saturated alkyl ester, a saturated alkyl ketone or a saturated alkyl ether.
Patent GB-192293-A (GB)
Title: Improvements in devices for preventing the creation of dust with rock drills
IPC: E21B21/01
Filed: 1922-02-13
Abstract: 192,293. Marks, E. C. R., (Ingersoll-Rand Co.). Feb. 13, 1922. Percussive drills.-Motive fluid is prevented from mixing with the clearing water (delivered by the tube H) by means of a washer D which seals the cylinder by engaging the forward reduced part of the piston at a point behind the end of the flutes a. Any fluid leaking past the washer D escapes through a vent e, which may be formed in an extension piece c arranged between the cylinders and the tool holder.
Patent GB-1134182-A (GB)
Title: Continuous casting apparatus
Inventor: SMITHSON DEREK ALAN
IPC: B22D11/14
Filed: 1965-02-01
Abstract: 1,134,182. Continuous casting. ASHMORE, BENSON, PEASE & CO. Ltd. 31 Jan., 1966 [1 Feb., 1965], No. 4249/65. Heading B3F. In a continuous casting process in which a plurality of open-ended moulds 12-15 are fed with molten metal from a common ladle 16 via tundishes 20, 21 strand guiding means is provided beneath each mould to turn each strand through an arc into a horizontal path at least two of which paths are at different levels. The axes of the moulds may be vertical and the mould may be arranged in pairs and the strand guiding means being arranged to guide the strands of one pair to horizontal parallel paths at a common level different from the corresponding level or levels of the other pair or pairs of moulds. Straightening machines 22-25 for straightening the curved strands at their respective levels are provided.
Patent GB-139293-A (GB)
Title: Improvements in gas stoves for heating irons
IPC: G03D15/04
Filed: 1919-02-20
Abstract: 139,293. Elsy, A. E. Feb. 20, 1919. Iron-heating stoves.-A stove for heating irons used in dry-mounting photographs and other prints comprises a base k with a hood c enclosing a burner a, the gas supply to which is controlled by a tap b and an automatically-operated cook e. The gas is turned on by the weight of the bit g on the platform i acting through the levers h. The handle of the iron rests on a support j.
Patent GB-971108-A (GB)
Title: Improvements in and relating to mountings for tractor-borne implements
Inventor: WILLIAMS ALAN FOULKES
IPC: A01B35/14
Filed: 1960-02-06
Abstract: 971,108. Tractor power-lift mechanisms. MASSEY-FERGUSON (AUSTRALIA) Ltd. Jan. 16, 1961 [Feb. 6, 1960], No. 4289/60. Headings A1B and A1P. A mid-mounting for tractor-borne implements comprises a frame 20 securable to a tractor body, a linkage connecting an implement carrier 10 to the frame and an actuator, 52, connecting the linkage to a tractor power lift mechanism operation of which at first raises the implement in a vertical position and then pivots it upwards and forwards. Brackets 26, 27 are mounted on each tube 24 of frame 20 to which are pivoted at 32 an upper link 30 and at 33 a lower link 31, the latter comprising a pair of interconnected members 34. Pivoted together at 39 and to the upper and lower links 30, 31 at 37, 36 are a short link 38 and a member 13 to which is attached an implement carrier 10, which may extend, 10A, below the tractor body, carrying cultivator tines 11. Spring 41 between forward extensions of links 30, 31 ensures that in the lowered position link 38 is held firmly against stop 40 on member 13 and pivots 32 and 37 are respectively vertically above pivots 33, 36 to form a parallelogram linkage 26/27, 30, 38/13, 31. Bracket 27 attached to link 31 is connected by actuator rod 52 to a bracket 53 bolted to tractor lower hitch link 54. When the tractor power lift mechanism is raised actuator rod 52 pivots link 31 and hence the parallelogram linkage so that tines 11 rise in a vertical position until upper link 30 contacts adjustable stop 50 on bracket 26 when member 13 pivots about point 39 rotating the tines forwards and upwards until they rest below the tractor body. Stabilizer links 60 are provided to limit lateral sway of the lower links 54.
Patent GB-1019887-A (GB)
Title: Improvements in or relating to methods of and apparatus for painting sheet metal articles such as vehicle bodies
Inventor: JEFFERY BRYAN
IPC: C25D13/14
Filed: 1964-01-31
Abstract: <PICT:1019887/C6-C7/1> A sheet metal hollow body, particularly a vehicle body having limited openings into the interior, is painted electrophoretically whilst rotating the body 1 on a horizontal spindle threaded lengthwise through the body and rigidly connected thereto, and simultaneously advancing it relative to and at least partly immersed in a paint bath B.  As shown, the spindle may be rotatable in a carriage 8 suspended from a stirrup 3 depending from member 4 carrying wheels 5 running on the lower flange 6 of an overhead rail 16, 18, 19, one end of the spindle having a sprocket 9 meshing with a toothed insulating rack 17, the other end being connected to a source of electrical potential (positive); auxiliary electrodes connected with the spindle may be mounted in the body (see Fig. 3, not shown).  Preferably, two or more bodies 1 may be simultaneously moved through the bath B in succession, the members 4 being connected by a towing chain (not shown).  The process may be carried out while maintaining a constant voltage, the electrode of opposite polarity (negative) being fitted externally or internally within the body.  When the process is carried out by electrical profiling consisting of increasing the voltage for each body, earthing shields 20 e.g. of wire mesh may be located between the bodies, the tank T being connected as the cathode.
Patent GB-1381020-A (GB)
Title: Piston construction
IPC: B01L3/14
Filed: 1972-12-28
Abstract: 1381020 Piston in centrifugal separator container BECTON DICKINSON & CO 28 Dec 1972 [25 April 1972] 04350/74 Divided out of 1381019 Heading B2P The subjectmatter of this Specification is identical with that of the parent Specification but the invention is directed to a piston for use in an apparatus for separating blood into light and heavy components by centrifugation and comprising a body portion having sealing means formed around its periphery, a rigid tubular sleeve mounted in the body portion, and normally closed valve means incorporated in the piston and arranged to open for passing fluid through the piston when there is a fluid pressure differential between the two sides of piston.