baber/WOPTO huggingface dataset:
Patent GB-1222430-A (GB)
Title: Flow control valve
IPC: C08K3/01
Filed: 1968-03-20
Abstract: 1,222,430. Valves. PATINVEST PATENTUND INVESTMENT A.G. 20 March, 1968 [25 March, 1967], No. 13602/68. Heading F2V. A valve-controlling flow to an automatic washing machine has inlet and outlet chambers 47, 14 and series valve members 44, 26 of which the latter is under manual control by knob 22 through cam means 30, 31. Following opening of valve member 26 and a valve in the washing machine, a chamber 52 supplied from chamber 14 via restrictor 49 is drained via 65, and chamber 46 behind valve member 44 is also drained thereby allowing inlet pressure to unseat member 44. In normal use, flow will continue until the machine valve closes, whereupon pressure in chambers 46, 52 will rise and valve member 44 will seat. However, should flow continue beyond a predetermined time determined by the rate at which water can enter chamber 53 above diaphragm 51, via plug 71, the latter, with the aid of pin 62, throttles and finally closes passage 65 to raise pressure in chambers 52, 46 and seat valve member 44. Plug 71 (Fig. 8) includes an entry throttle 95 and an exit check valve 91, 99. Rotation of knob 22 also acts via cam surfaces 10 on ring 9 to move hub 13 of disc 15 axially thereby distorting the latter to raise or lower the pressure in chamber 14 when valve member 26 is opened and closed respectively and the machine valve is closed. These pressure variations can be sensed by a switch controlling the power supply to the machine. Fingers 38 depending from seat ring 38 abut disc 15 such that the latter moves the seat ring between active and inactive positions corresponding respectively to opening and closure of valve member 26. Plug 71 is interchangeable with a vent screw plug 70 which is normally closed.
Patent GB-199900-A (GB)
Title: Retorts and method of protecting the same
IPC: C01C3/00
Filed: 1922-05-15
Abstract: Retorts for use in the manufacture of alkali metal cyanides are made with a body portion of nickel-chrome alloy and a thin non-porous lining of iron, steel or other ferrous metal.  The lining may be spaced from the body portion by a flange at one end and adjusting screws at the other, so that the two parts can expand independently, and the intervening space is packed with finely divided iron, or a mixture of iron and a reducing-agent such as carbon.  Nichrome or alloys containing about 85 per cent of nickel and 10 to 15 per cent of chromium, or 50 to 60 per cent nickel, 10 to 20 per cent chromium and 10 to 30 per cent iron may be used for the body portion of the retort.  Specification 136,750 is referred to.ALSO:Retorts for use in the manufacture of alkali metal cyanides are made with a body portion of nickel-chrome alloy and a thin nonporous lining of iron, steel, or other ferrous metal.  The lining may be spaced from the body portion by a flange at one end and adjusting screws at the other, so that the two parts can expand independently, and the intervening space is packed with finely divided iron, or a mixture of iron and a reducing-agent such as carbon.  Specification 136,750 is referred to.
Patent GB-475414-A (GB)
Title: Improvements relating to guards for presses and other like machines
IPC: F16P3/04
Filed: 1936-05-15
Abstract: 475,414. Machinery guards. UDAL, J. D. May 15, 1936, No. 13783. [Class 80 (iv)] The guard of a power press is in two parts : (1) a hanging frame A with horizontal guard bars b ; (2) a frame B with bars k adapted to reciprocate lengthwise of the frame A. A hangs loosely from a shaft d or is held by a spring f. B is connected either to a rotary crank q, or to clutch-operating mechanism by rods m, levers n, s, fast on the shaft d, and rods t, u. In the latter case, guard B is in guarding position before the clutch is engaged. If a hand is in the danger zone so that it obstructs the descent of guard B it is held between the two guards as shown and is thereupon moved away from the machine. If the machine is started inadvertently before guard B is in its bottom position, a lever o, which in this form is loose on the shaft d, engages a roller 3 on the lever s and so moves the guard. Specification 446,048 is referred to.
Patent GB-1436525-A (GB)
Title: Process for preparing polychloroprene latex
IPC: C08F36/16
Filed: 1974-03-28
Abstract: 1436525 Emulsion polymerization of chloroprene TOYO SODA MFG CO Ltd 28 March 1974 [29 March 1973 (2)] 13802/74 Heading C3P Chloroprene is homo- or copolymerized in emulsion in the presence of a stabilizer comprising a colloidal alumina sol. The emulsifier used is preferably an N-alkyl propylene diamine polyglycol ether of the general formula wherein R is a C 12-20  saturated or unsaturated aliphatic hydrocarbon group; x, y and z are each 0 or an integer, and the sum of x, y and z is greater than 0 and less than or equal to 3, and n is 2 or 3.
Patent GB-880410-A (GB)
Title: Improved swaging process
Inventor: TAYLOR ANDREW CAMPBELL
IPC: B21D41/04
Filed: 1958-05-01
Abstract: 880,410. Making rollers; curling. MANUFACTURERS EQUIPMENT CO. Ltd. May 1, 1959 [May 1, 1958], No. 13847/58. Classes 83 (2) and 83 (4). A swaging process comprises the steps of engaging each opposite end of a tubular metal workpiece with a forming die, clamping the workpiece rigidly in one or more regions adjacent the ends thereof, completely embracing each tubular end with said die to prevent relative rotational movement between said die and tubular end applying at the same time to each tube end a steady axial pressure and simultaneously turning each end of the tube inwardly through 180 degrees with a single die to form inner collars. The sub press mechanism for shaping the open ends of a tubular workpiece 10 comprises two spring-loaded die blocks 11 and 12 slidable in guides 11a and 12a on beds 13 and 14 located on the lower bolster 15b of a press. Tungsten carbide beading dies 22 are held in the die blocks by retaining rings 23. The upper bolster 15a of the press has depending chamfered abutments 16 and 17 which coact with the die blocks to urge them together on downward movement of the upper bolster. The steel tubular workpiece is supported in cradles 20, 21 and held in position by spring- loaded clamps 25, 26. Buttresses 18 and 19 mounted on the beds 13 and 14 co-operate with the depending abutments 16 and 17 to prevent any outward movement of the latter during the cold swaging operation. The dies 22 are replaced after the beading operation by sizing dies which remove any irregularities from the workpiece to facilitate the insertion of a bearing if the tubular workpiece is to be used as a roller. Pivoted ejection levers (not shown) are provided to remove the formed workpiece from the cradles 20, 21. In another embodiment an outer or flared lip is formed on one or both ends of the workpiece.
Patent GB-439878-A (GB)
Title: Alloys and composite articles made therefrom
IPC: C22C9/00
Filed: 1934-05-08
Abstract: A homogeneous alloy contains about 8-80 per cent of copper, over 5 to 50 of chromium, about 8 to 40 of silicon, 0.4-6.0 of carbon and the remainder iron.  The alloy is prepared by forming a melt containing the chromium, adding the silicon and then copper or by melting iron and chromium, adding a portion of silicon or ferrosilicon and then alternately portions of copper and silicon or ferrosilicon.  A ferrous article may be coated with the alloy either by mixing the granulated alloy with a binder, coating a mould with the mixture and then pouring the ferrous metal into the mould or by packing the ferrous article in the granulated alloy mixed with flux and heating to cementing temperatures below the melting points of the article and the alloy.  Specification 335,950, [Class 82 (i)], is referred to. The Specification as open to inspection under Sect. 91 contains the subject-matter of Specification 442,509, [Group XXII].  This subject-matter does not appear in the Specification as accepted.
Patent GB-284126-A (GB)
Title: Improved partition means for fluid containers particularly for dyeing machines and the like
IPC: D06B23/00
Filed: 1927-05-24
Abstract: 284,126. Gerber, W. May 24, 1927. Tanks.-A remov able partition c in fluid container, particularly for use in dyeing machines makes contact along an are of a circle with a fixed transverse por tion b of comple mentary shape, being pressed down by toggle or other mechanism j<2> acting on a bar e secured to the partition c. The arcuate edge of the portion b enters a circumferential groove in the partition c, which contains a rubber packing-strip.
Patent GB-456735-A (GB)
Title: Process for the manufacture of thiazolium compounds
Filed: 1935-05-11
Abstract: Thiazolium compounds are prepared by interaction of a thiazole with a halogen-aminopyrimidine.  The reaction is preferably effected with heating in a high-boiling solvent such as amyl alcohol, paraffin and deca- or tetrahydronaphthalene.  The products possess anti-neuritic properties.  Examples are given of the preparation of thiazolium compounds from (1) 4-methylthiazole and 2-amino-4-chloro-6-methylpyrimidine; (2) 4-methyl-5-hydroxyethylthiazole and 2-amino-4-chloro-6-methyl or ethyl - pyrimidine; (3) 4 - methyl - 5 - hydroxyethylthiazole and 2-chloro-4-methylamino-6-methylpyrimidine or 2-methylamino-6-methyl-4-chloropyrimidine; (4) 4-methyl-5-hydroxyethylthiazole and 2-methyl or ethyl-4-chloro-6-aminopyrimidine; (5) 4 - methyl - 5- hydroxyethylthiazole and 2 : 5 - dimethyl - 4 - chloro - 6 - aminopyrimidine; (6) 4 - methyl - 5 - hydroxyethylthiazole and 4-amino-5-bromo-6-methyl or ethyl-pyrimidine; (7) 4-methyl-5-hydroxyethylthiazole and 2 - amino - 4 - iodo - 6 - methylpyrimidine; (8) 4 - ethyl - 5 - hydroxymethylthiazole and 2 - methyl - 4 - chloro - 6 - aminopyrimidine; instead of 4 - ethyl - 5 - hydroxymethylthiazole there may be used 4-propyl or isopropyl-5-hydroxyethylthiazole or 4-methyl-5-(b - or g -hydroxypropyl)-thiazole.  Specification 456,751 is referred to. The Provisional Specification refers also to the interaction of thiazoles with halogen-pyrimidines. Pyrimidines.--Chloro-methylamino-6-methyl-pyrimidines containing the chlorine atom and the methylamino group in the 2- and 4-position and the 4- and 2-position are prepared by treating 2 : 4-dichloro-6-methylpyrimidine with the equivalent of methylamine and separating the isomers formed.  2-Methyl and ethyl-4-chloro-6-aminopyrimidines result when cyanacetic acid ester is condensed with acetamidine and propioamidine respectively and the resulting 4-hydroxy compounds treated with phosphorus oxychloride; 2 : 5-dimethyl-4-chloro-6-aminopyrimidine is similarly prepared using cyanpropionic acid ester and acetamidine as starting materials. 2-Amino-4-iodo-6-methyl-pyrimidine is formed when the corresponding 4-hydroxy body is treated with phosphorus tri-iodide.
Patent GB-1422273-A (GB)
Title: Hydraulic control valves
IPC: E02F9/20
Filed: 1973-03-22
Abstract: 1422273 Fluid-pressure control systems CATERPILLAR TRACTOR CO 22 March 1973 [23 March 1972] 13921/73 Heading G3P [Also in Division F2]  A pilot valve 10 comprises a housing 12 in which are reciprocally mounted identical spools 16, 16 having passages to control the flow of positioning liquid through lines 74, 76 to the main valve 72 of a servomotor. The spool 16 has a central land 36 in alignment with an inlet passage 18 from pump 20. Slight axial movement, say to the right, of spool 16 from its neutral position causes liquid to flow from inlet 18 into a transverse spool slot 50 and thence through axial port 46 into annular groove 32 in communication with line 74. A leak-off from groove 32 to drain 22 via a port 58 in land 42 ensures that the pressure in line 74 is less than in inlet 18. The control spool 82 of main valve 72 is thus caused to move rapidly to the right, through its dead band range, against the action of a low rate centering spring until contact is made with a high rate spring. Further rightwards movement of pilot spool 16 places an axial, variable section, slot 54 in parallel with the now fully effective port 46 so as to increase the control pressure in line 74. A further rapid increase in the latter occurs when spool 16 has moved to such extent that leak-off port 58 is blocked. Fig. 3 (not shown) illustrates the relationship between spool travel and control pressure spool 16 includes an identical set of ports &c. on the opposite side of central land 36 to control pressure in line 76, a dowel 66 to prevent rotation of the spool, and biasing springs 70.
Patent GB-1416475-A (GB)
Title: 21-orthoesters of cortical steroids and methods of preparing same
IPC: A61K31/57
Filed: 1973-03-22
Abstract: 1416475 21-Orthoesters of 21-hydroxy steroids SYNTEX CORP 22 March 1973 [23 March 1972] 13965/73 Heading C2U Novel steroids of the formula wherein R is H, C 1-10  alkyl, C 3-10  cycloalkyl or optionally substituted aryl; R<SP>1</SP> is C 1-5  alkyl or the two R<SP>1</SP> groups may be joined to form, together with the adjacent oxygen atoms and the carbon atom linking these atoms, a monocyclic heterocyclic group having 3 or 4 ring carbon atoms; R<SP>2</SP> is OH or C 1-12  acyloxy; R<SP>3</SP> is H or α- or #-CH 3 , or, together with R<SP>2</SP>, forms the group wherein R<SP>4</SP> and R<SP>5</SP> are each H, C 1-5  alkyl or optionally substituted aryl or together are joined to form, together with the carbon atom to which they are joined, a monocyclic cycloalkyl group having 3-6 ring carbon atoms and optionally methyl-, ethyl- or iospropyl-substituted, or a monocyclic heterocyclic group; Z, in #<SP>6</SP> compounds, is H, F, Cl or CH 3 , and in 6,7-saturated compounds is H, α-F, α-Cl, α-CH 3  or F 2 ; Y is H, F or Cl but when the 11- substituent is F, Y must be H or Cl; and the #<SP>1</SP> and #<SP>6</SP> double bonds are optional, are prepared by reacting the corresponding free 21-ols with ortho-esters RC(OR<SP>1</SP>) 3  in the presence of a strong acid catalyst. The novel steroids are anti-inflammatory agents and they may be made up into pharmaceutical compositions with suitable carriers.
Patent GB-1332971-A (GB)
Title: Production of polyunsaturated carboxylic acids and esters
IPC: C07C51/09
Filed: 1971-05-10
Abstract: 1332971 Polyunsaturated carboxylic acids and esters HENKEL & CIE GmbH 10 May 1971 [27 May 1970] 13966/71 Heading C2C Polyunsaturated carboxylic acids and esters (acid radical with 20 C or more) are prepared by reacting a conjugated diolefine with a methacrylic acid ester (at least 4 mol. of diolefine/ mol. of methacrylic acid ester) in the presence of an organometal complex of non-valent nickel with an electron donor selected from phosphorous acid triamides, heterocyclic N-bases, aliphatic and aromatic amines, nitriles, sulphides, sulphoxides and triaryl compounds of arsenic and antimony, isolating the ester and if required forming the free acid from the ester. Butadiene, isoprene and 1,3-pentadiene may be used with methyl, n-, sec, and tert butyl methacrylates preferably in inert solvents and the ester product may be saponified to the acid. The electron donors may be phosphorous trimorpholide, phosphorous acid tri-N-methylanilide, tri - N,N - dialkylamides of phosphorous acid, hexylamine, dibutylamine, triethylamine, morpholine, N-methyl-morpholine, piperidine, triphenylamine, pyridine, picolines, collidine, quinoline, pyrrole, diphenylamine, benzylamine, dimethylaniline, toluidine, acetonitrile, benzonitrile, diethylsulphide, di-tert-butylsulphide, didodecylsulphide, methyl octylsulphide, diphenylsulphide, cyclohexylphenylsulphide, dimethyl - sulphoxide, triphenylarsine, trinaphthylarsine, tri-o-tolylarsine, triphenylstibine, trinaphthylstibine and tri-o-tolyl stibene. Examples describe the preparation of C 2 O carboxylic esters and acids.
Patent GB-948227-A (GB)
Title: An epstein apparatus for determining the magnetic properties of electrical sheet
IPC: G01R33/12
Filed: 1962-04-11
Abstract: 948,227. Determining iron losses. LICENTIA PATENT-VERWALTUNGS-G.m.b.H. April 11,1962 [April 11,1961], No. 13973/62. Heading G1N. An Epstein apparatus, i.e. one for determining the magnetic properties of electrical sheet, comprises a narrow rectangular core frame of overlapped specimen strips of the sheet having two windings I, II, III, IV, on each long limb 3, 2; and a bridging portion straps 4, 5, which may be connected across the long limbs between the windings whereby separate tests may be made on a single loop, and a double loop. The windings which each comprise a primary and a secondary have their connections switchable to provide loop fluxes, and the losses are measured for both arrangements. A mathematical analysis is included and directions of magnetisation are shown. The cross straps may have magnetic properties diffusing from those of the rectangle.
Patent GB-1187112-A (GB)
Title: Process for the Manufacture of Paper or Similar Multi-Ply Bags, and Bags Obtained by the Process.
Inventor: BERGHGRACHT MARIUS
IPC: B31B39/84
Filed: 1967-03-28
Abstract: 1,187,112. Multi-ply bags. M. BERGHGRACHT. 28 March, 1967 [29 March, 1966], No. 13980/67. Heading B8K. [Also in Division B5] Cuts in the outer ply only of a diamond-fold multi-ply bag provide side flaps 15, 16 (Fig. 23) of rectangular form, this ply being folded after the others with the flap 16 directly over the flap 15. The remaining plies may be secured together at their ends. The corner tabs 28 of the outer ply are folded outwardly until the side flaps of the inner plies have been folded. The cuts forming the rectangular flaps in the outer ply may be moved inwardly from the position shown so that the corner flaps 28 are wider than the bottom of the bag. A valve may be provided at one corner of the bag.
Patent GB-1356588-A (GB)
Title: Mineral mining installations
IPC: E21C35/12
Filed: 1971-05-11
Abstract: 1356588 Plough-guiding conveyor GEWERKSCHAFT EISENHUTTE WESTFALIA 11 May 1971 [28 Aug 1970] 14145/71 Heading E1F A mining plough is drawn along a conveyor by a circulating chain enclosed by ducts formed between conveyor-mounted plates and U- shaped covers, conveyor-mounted slides being provided to continuously support one chain run. As shown, Fig. 1, conveyor 12 comprising sections 10, 11 supports plates 18 and covers 19 forming ducts 17, 21 enclosing chain 16 which hauls plough 13. Slides 20 are mounted end-to-end on plates 18 to support the copper, return chain run. The slides each have relatively soft part 22 and relatively hard ends 23. Each plate 18, Fig. 3, may support slides 27 and covers 24 where extensions 26 support the lower chain run. The slides may be pivotally connected to one another and to the plates. The slides may be formed by two parallel strips of spaced-apart material having their adjacent ends bent towards one another.
Patent GB-489525-A (GB)
Title: Improvements in or relating to machines for testing the balance of rotary bodies
IPC: G01M1/22
Filed: 1937-05-21
Abstract: 489,525. Testing balance of rotary bodies. KUCHENMEISTER, C. W. May 21, 1937, No.14146. [Class 106 (ii)] In addition to the usual work-piece rotating arrangements and compensating mechanism, two pointers or equivalents are arranged to be oscillated by the movements of the compensating mechanism and the work-piece supports respectively, and the two pointers are observed stroboscopically. The rotor to be tested is mounted in adjustable bearings on a cradle a pivoting about an axis b. The free end of the cradle is supported by a spring e and its oscillations are transmitted to a pointer c moving over a scale d. The cradle is also connected to a lever f having a weight h at the free end. The rotor is rotated by an electric motor i through gears j, k, differential gear l, m, n, and a flexible coupling o. The carrier p for the planet wheels m can be adjusted angularly from a hand wheel q through a gear r the setting being read off a scale s. An eccentric t driven by the motor i oscillates a lever u about its fulcrum v. A roller w can be moved along the lever u by bevel and screw gear z, y from a hand wheel x and its position indicated by a pointer 3. Parallel to the lever u is a lever 4 rocking about a fulcrum 5 and carrying the fulcrum g of the lever f. The free end of the lever is pressed down on the roller w by a spring 6. The oscillations of the lever u are conveyed to a pointer 7 coaxial with pointer c. These pointers are observed simultaneously stroboscopically 9 through an eye-piece 8 having an aperture and rotated from the motor i at a speed nearly the same as the rotor. By turning the handle q the balancing oscillations can be brought into phase with the natural oscillations of the work-piece and then by turning the hand wheel x the oscillations can be adjusted until the crank and pointer c are brought to rest. The plane and extent of unbalance can be read off from scales s and z respectively.
Patent GB-611851-A (GB)
Title: Production of chlorinated heterocyclic organic compounds
IPC: C07D307/30
Filed: 1946-05-10
Abstract: Furane is chlorinated at temperatures below 0 DEG  C., preferably -20 DEG  to -40 DEG  C., to give chlorofuranes containing 2-6 chlorine atoms.  A solvent, e.g. methylene chloride, chloroform, carbon tetrachloride, may be present.  On completion of reaction, the temperature may be raised to drive off hydrogen chloride.  The products may be separated by fractional distillation or crystallization.  An example describes the chlorination of furane in methylene chloride at -40 DEG  C. and the separation from the product of 2-chloro-, 2.5-dichloro- and 2.3.5-trichlorofurane. 2.3.4.5-Tetrachlorofurane and hexachloro - 2.5 - dihydrofurane may also be obtained.
Patent GB-1043242-A (GB)
Title: Improvements in or relating to electric arc welding apparatus
Inventor: WOOD COLIN
IPC: B23K9/028
Filed: 1962-04-12
Abstract: 1,043,242. Welding by fusion. BRITISH OXYGEN CO. Ltd. April 11, 1963 [April 12, 1962; April 30, 1962; July 26, 1962], Nos. 14273/62, 16496/62 and 28835/62. Heading B3R. In a machine for arc welding tubes to tube plates in which an electrode and a guide member are mounted in a rotatable body adapted to move the electrode in a circular path at welding speed, the electrode and the guide member are together resiliently mounted in the body, the guide member being biased against the tube being welded to accurately guide the electrode along the joint. The machine is located on the tube plate by plugs 8, Fig. 1, not shown, locating in tubes or apertures in the plate and adjustably attached to the frame 2 of the machine. A gas shielded tungsten electrode torch 13 and the guide member 14 are mounted on an arm 12, Fig. 2, not shown; pivotally attached to the rim 11 of the body 1 and biased by a spring 15. The body 1 which is journalled in the frame 2 is rotated by a motor 20. The guide member 14 carries a roller 16 engaging the inner surface of the tube being welded. The distance between the guide member 14 and the electrode is adjustable. In a modification the torch 13 and guide member 14 are mounted on a slide biased to one end of a slot in the body 1. In a further modification, the torch 13 and guide member 14 are mounted on a carriage 29, Fig. 4, not shown, running in grooves 31 on an arm 25 pivotally attached to the rim 26 of the body 1. Biasing is effected by springs 28, 32. The machine may be located on the tube plate by positioning devices each consisting of a cylindrical housing 33, Fig. 5, not shown, attachable to the frame 2 and a conical member 35 resiliently mounted in the housing 33 and adapted to engage in and centre relative to a tube 42 when the housing 33 is pressed against the tube plate. The machine may have a transverse electrode adapted in the welding position to be level with the surface of the tube side of the tube plate to effect an internal weld.
Patent GB-283781-A (GB)
Title: A new or improved process for the production of acetic anhydride
IPC: C07C51/56
Filed: 1927-05-27
Abstract: 283,781. Ruzicka, C. May 27, 1927. Acetic anhydride is produced by the action of sulphur trioxide on ordinary or glacial acetic acid. The sulphur trioxide is passed into the acid either by vaporizing the trioxide or by using the gases containing the trioxide produced by the catalytic oxidation of sulphur dioxide. The acid may be agitated and cooled during the process, and may be wholly or partially converted into anhydride. In the latter case the mixture may be used directly for the acetylation of cotton or wood cellulose.