baber/WOPTO huggingface dataset:
Patent GB-238683-A (GB)
Title: The preparation of sulphaminoazo bodies and of diazoazo compounds therefrom
Filed: 1924-07-28
Abstract: Sulphaminoazo compounds are prepared by coupling diazo compounds with Piria's a -naphthylsulphaminic acid.  The sulpho group may be split off by warming with dilute mineral acids almost pure p-aminoazo compounds being obtained.  The sulphaminoazo bodies can be diazotized directly or after saponification and coupled again with a -naphthylsulphaminic acid or with any other component.  According to examples, the diazo compounds of p-toluidine and m-sulphanilic acid are employed, the resulting sulphaminoazo compounds being saponified with dilute hydrochloric acid.  Other amines may be similarly employed such as those of the naphthalene, anthracene, anthraquinone and diphenyl series, aniline, chloranilines, aminophenolethers, monoacidylphenylenediamines and their sulpho acids, nitranilines, a - and b -naphthylamines and their sulpho acids, aminoanthraquinones, diaminodiphenyl derivatives, aminodiarylamine sulphonic acids, aminosalicylic acid, and monoacidylnaphthalenediamine sulphonic acids.  The coupling may be carried out in acid, neutral, or alkaline solution.ALSO:The sulphaminoazo compounds obtained by coupling diazo or tetrazo compounds with Piria's a -naphthylsulphaminic acid may be diazotized on the fibre, without previous saponification, and developed in known manner.  The use of the compounds obtained from benzidine derivatives, which being substantive can be dyed on cotton directly, is referred to.
Patent GB-860512-A (GB)
Title: Tubing hanger assembly for oil and like wells
IPC: E21B33/047
Filed: 1959-05-27
Abstract: 860,512. Oil wells. OIL CENTER TOOL CO. May 27, 1959 [Dec. 8, 1958], No. 18035/59. Class 85. A hanger assembly for one or more tubing strings comprises a tubing head 10 and means projectible into the bore 13 on which seat the coupling or couplings 50, 51 from which the string or strings are suspended. As described, NO strings 57, 57a are hung, in tension in the well casing, the lower ends being connected to well packer or packers to enable the strings to be stretched until the couplings are above their seating positions to which they are lowered after the landing means have been projected into the bore 13. The couplings 50, 51 have semicylindrical enlargements 53 which face one other in the bore 13 in slightly spaced relation when in the operative position. The bottom of the cylindrical surfaces have semi-conical recesses 62 which rest on the conical ends 72 of pins 63 when the pins are screwed into the bore 13. When the pins are retracted the semi-cylindrical heads may pass to enable connection of the string to the packer to be made. The string is then stretched by a tool screwed into the coupling at 58. A real 16 comprising a plastic packing 19 sandviched between plates 17, 18 which are bolted together, seats upon face 15 and is compressed to squeeze the packing by radially arranged screw pins with cone ends which bear upon a bevel 98 on the top plate 17. The tubes 57, 57a are run separately into the casing through a blow-out preventer, the coupling 50 or 51 is attached to the top of the string, and a backpressure valve is inserted in the coupling. The coupling passes through the blow-out preventer, the string is connected to the packer, stretched and the coupling is landed upon the pins 63. The other string is run in similarly, and the seal 16 is inserted through the blow-out preventer, seated on the face 15 and squeezed and retained by the radial screw pins. The blow-out preventer is then removed and replaced by a Christmas tree 32. In a modification, Fig. 6, the enlargements 53 are absent, but the lower ends of the couplings 50, 51 are formed as V-beads 193 which land in V-sectioned arcuate grooves in the top faces of nut-like members 172 which are projectible into the bore 113 by screws 167. A keyway and pin 190, 191 prevent each of the members 172 from turning so that they rest against the tubes 157 when fully projected. In a further modification, the enlargement 53 is separate from the tubular part of the coupling which seats revolubly in a recess in the enlargement and is screwed to the upper member of the tube string. Separation of the enlargement 53 from the tubular part of the coupling is prevented by ball bearings in co-operating grooves in the two parts of the coupling. The enlargement is landed on cone-ended pins similar to those shown in Fig. 3, except that the axes of the pins are parallel to the plane of separation of the two halfcylinders. With this arrangement, each string is independently revoluble in the enlargement 53.
Patent GB-1346688-A (GB)
Title: Proces for the preparation of sterois alpha-fluoronitrimines
IPC: C07J71/00
Filed: 1971-05-28
Abstract: 1346688 Steroid α-fluorinitrimines and α- fluoroketones E I DU PONT DE NEMOURS & CO 28 May 1971 [1 June 1970] 18138/71 Heading C2U The preparation of steroid α-fluoronitrimines by the reaction is effected using NOF with NOBF 4 , the latter optionally being prepared in situ, e.g. by reaction of NOF with BF 3 . The starting steroid is a 2-esterene, 5-estrene, 16-estrene, 2-androstene, 9(11)-androstene, 16-androstene, 5-pregnen, 19-nor-5-pregnene, 9(11)-pregnene or 13#-ethyl- 5-gonene optionally bearing one or more substituents selected from halo, oxo, C 1-6  alkyl, C 1-4  alkynyl, esterified hydroxy, etherified hydroxy, alkylenedioxy and substituted alkylenedioxy. The obtained α-fluoronitrimines may subsequently be hydrolysed, e.g. with hydrated alumina, to give the corresponding α-fluoroketones. 6,6 - Difluoro - 16α,17α - isopropylidenedioxy- 21-hydroxy-4-pregnene-3,20-dione is obtained by a multistage process incorporating the inventive process (but otherwise unspecified) from 3#,21 - diacetoxy - 16α-17α - isopropylidenedioxy-5-pregnen-20-one, and is convertible by microbial oxidation with unspecified microorganisms into the corresponding 11α- and 11#- hydroxy compounds. 6,6 - Difluoro - 13# - ethyl - 17α - ethynyl- 17# - heptanoyloxy - 4 - gonen - 3 - one is prepared as described in Specification 1,291,150. Reference has been directed by the Comptroller to Specification 1,055,244.
Patent GB-1470132-A (GB)
Title: Ceramic electrical resistors
IPC: H01B1/02
Filed: 1975-05-01
Abstract: 1470132 Positive temperature coefficient resistors SIEMENS AG 1 May 1975 [11 July 1974] 18183/75 Heading H1K The spaced apart ohmic contacts of a positive temperature coefficient resistor of a doped semi-conductor ceramic of perovskite structure each consist of an inner layer of palladium alone or mixed with palladium chloride and an outer layer of nickel alone or alloyed with boron or phosphorus. Suitable semi-conductor materials are titanates, stannates and zirconates of alkaline earth metals with or without lead as a a substituent, doped with antimony, bismuth, niobium or a rare earth metal. The inner layer typically 0À2-50 nM thick is preferably applied from a 0À01-0À2% aqueous solution of palladium chloride by painting, rolling, spraying or silk screening and stoved at 300-500‹ C. for 10-60 minutes to reduce some at least of the chloride to palladium metal. The outer layer, from 0À5-5 Á thick may be electroless plated from a specified aqueous solution containing nickel chloride and sodium hypophosphite at 65-90‹ C., and after rinsing, annealed at 200- 300‹ C. for 2-15 hours. The contacts are then coated with lead-tin-silver solder and copper wires attached with or without use of additional solder.
Patent GB-530360-A (GB)
Title: Improvements in or relating to re-closing mechanism for electric circuit breakers
IPC: H01H75/04
Filed: 1939-06-22
Abstract: 530,360. Automatic circuit-breakers. GENERAL ELECTRIC CO., Ltd., and KEELEY, F. J. June 22, 1939, No. 18211. [Class 38 (v)] A circuit breaker is mounted on the back of a vertical panel, Fig. 1 (not shown), and operated by a hand-lever which is movable in a vertical plane and associated with h trip mechanism which, with an automatic reclosing mechanism, is mounted on the panel-front. When tripped, the hand-lever rises under spring-action and draws up a rod 13 connected to the reclosing mechanism, Fig. 3. The latter comprises a housing in which is a partition 10, Fig. 3, accommodating one cr more operating cylinders 9 and a cylinder 23 containing a piston 24, the rod 26 of which is linked at 25 to a centrally-pivoted lever 14 connected to rod 13. The cylinders all intercommunicate below the pistons by way of an oil reservoir 8, whereby downward movement of a piston 12 lifts piston 24 to close the breaker. Each piston 12 is urged downwards by springs 18, and its rod 16 is linked at 15 to a lever 22 having a pin 21 which is engaged by latches 19, 20 in its extreme positions. The latches 19 are releasable in turn for successive reclosures by spaced fingers 29 on a spindle 27 carrying a ratchet wheel 26, which is engaged by a pawl 28 on lever 14 each time the breaker opens. The downward, opening movement of piston 24 is controlled by an adjustable orifice 11 in partition 10 so as to allow the trip mechanism time to re-set. The orifice may, however, contain a ball-valve which, during the downward movement of a reclosing piston, prevents the flow of oil from below to above the partition. A valve 17 in piston 24 allows manual resetting of pistons 12 by the levers 22, and also manual closure of the breaker by the hand-lever. By providing links 25 with a slot and lever 14 with a co-operating pin, the piston 24 can already be in its downposition when tripping occurs, so eliminating the delay in reclosure caused by the retarded descent of rod 13, ensuing reclosures being, however, retarded by such slow descent.
Patent GB-1044212-A (GB)
Title: Improvements in or relating to vessels for heat-exchange
Inventor: HINGS DAVID COOPER
IPC: F28F21/06
Filed: 1963-05-08
Abstract: 1,044,212. Connecting pipes to plates &c. WHITMAYER-REED Ltd. May 8, 1964 [May 8, 1963], No. 18259/63. Heading F2G. [Also in Divisions B1 and F4] In a heat-exchange vessel (see Division F4), graphite tubes 20a, 20b are held in register with holes in a polypropylene wall by tie bars 30a, 30b. The ends of the tubes may bear directly on the inner surface of the wall or gaskets 25 may be provided. The tie bars are centralized in the tubes by box-shaped spring steel centralizers 40. In a modification, Fig. 7 (not shown), using Field tubes, the tie bars are hollow and each graphite tube is closed at its inner end by a resin block 5 into which the tie bar is screwed.
Patent GB-123122-A (GB)
Title: Improvements in Ploughs.
Inventor: BENTALL EDMUND ERNEST
IPC: A01B63/08
Filed: 1917-12-10
Abstract: 123,122. Bentall, E. E., and Bingham, G. C. Dec. 10, 1917. Ploughs.-Means for raising the frame of a plough for use with motor-tractors comprises an endless chain driven from the supporting wheel or wheels. The endless chain H passes round a sprocket-wheel G on the land wheel A and a sprocket-wheel F in a housing at the top of the wheel standard B. This standard B slides through a bracket C on the plough frame D and has a parallel extension B<1> which also slides in a guide. The frame D is held in its raised and lowered positions by spring catch levers L, K pivoted on the bracket C and engaging with adjustable stops N, O respectively. The driver lowers it by pulling on a cord attached to the upper arm P<1> of a lever P pivoted on the bracket C. A cam on the lever P engages a pin on the catch lever L and disengages the latter from the stop N, when the frame D falls until the lever K engages beneath the stop O. For raising the plough, a cord attached to the lower arm P<3> of the lever P is pulled until an arm P<4> disengages the lever K from the stop O. A tooth P<5> on the lever P engages the rising part of the chain H and is carried up with it, thus raising the frame D. In a modification the guide C is hinged and the land and furrow wheels are adjustably connected by arms and quadrants to a bar journaled across the frame D.
Patent GB-1032407-A (GB)
Title: Process for the preparation of benzene carboxylic acids
IPC: C07C51/265
Filed: 1965-04-30
Abstract: Benzenecarboxylic acids are prepared by reacting the corresponding methyl-substituted benzene compounds with oxygen in presence of a cobalt salt of a C2-4 fatty acid in a solvent medium of 25-70% benzene and 75-30% said fatty acid, by volume. A methylenic ketone activator may also be present.  Examples describe the preparation of terephthalic acid from p-xylene, but also mentioned is the application of the process to the preparation of benzoic acid from toluene, isophthalic acid from m-xylene or m-toluic acid, terephthalic acid from p-toluic acid, and chloro- and nitroterephthalic acids from 1,4-dimethyl-2-chloro-and -nitro-benzenes.
Patent GB-643631-A (GB)
Title: Process of making safety shoes
IPC: A43D3/02
Filed: 1948-07-08
Abstract: 643,631. Making safety shoes. GREENAN. W. G. July 8, 1948, No. 18343. [Classes 17(i) and 17(ii)] A metal box toe stiffener 12 is placed over the toe end of the upper lining 18 after it has been lasted on a last 10. If desired, barbs Integral with the base flange of the stiffener may be provided to return it in desired position on the last. A plastic fibrous box toe 19 may be lasted with the lining, the rear edges of the stiffeners 12, 19 being located toeward of a recess or ridge 11 at the forepart of the last of such height as to compensate for the lining 18, toe pad or pads 12, 19, 20 employed, so that no visible ridge appears on the outside of the finished shoe. Such ridge 11 may be formed by providing additional wood on the last or by applying a separately formed portion to it.
Patent GB-354921-A (GB)
Title: Process for the construction of ceilings
IPC: E04F13/02
Filed: 1930-06-16
Abstract: 354,921. Ceilings. SYNDICAAT HANDL and HANDL, E., 7, Daniel de Langestraat, Amsterdam. June 16, 1930, No. 18370. [Classes 20 (ii) and 20 (iv).] After a floor has been laid, the ceiling is formed by suspending from the joists a reinforcement such as bars, netting, or expanded metal with a shuttering beneath, and then forcing fluid plaster or cement from an airtight container by means of compressed air up through a delivery pipe into the shuttering. The plaster may contain a light filler such as slag, breeze, or pumice. The work is done in sections.
Patent GB-407851-A (GB)
Title: Improvements in pressure-applying mechanism for moulding and other presses
IPC: B29C45/68
Filed: 1933-06-28
Abstract: 407,851. Mechanical presses; moulding presses. BRUMM, E., 11<bis>, Rue St. Gervais, Lyons, France. June 28, 1933, No. 18375. Convention date, June 30, 1932. [Class 87 (ii).] The press head of a moulding-machine or other press is actuated by a combination of two oppositely arranged linkages one of which is effectively operative (that is, with greatest mechanical advantage) at one end of the stroke, which the other is effectively operative at the other end of the stroke. The moulding- machine may comprise longitudinal guides d tied by relatively fixed frames a, band c and supporting a sliding frame e carrying a mould closure which co-operates with a mould mounted on the end frame a. The frame e is connected by outside links g<1>, g<3> both to links l<1>, l<3> coupled at m to outside piston-rods p, and to levers j<1>, j<3> secured on rock shafts k<1>, k<2> which are mounted in the frame b and have rigidly mounted arms r<1>, r<2> coupled by links s<1>, s<2> to another piston-rod u located between the rods p. The piston-rods are similarly but independently actuated. Fig. 4 shows one extreme position when the piston-rod p is effectively operative owing to the alignment of the pivots i<1>, m, i<3>; Fig. 5 shows the other extreme position when the piston-rod u is effectively operative owing to the alignment of the pivots v<1>, t, v<2>. Specification 341,132, [Group XXII], is referred to.
Patent GB-1055166-A (GB)
Title: Clothes hanger
IPC: A47G25/28
Filed: 1963-05-10
Abstract: 1,055,166. Garment hangers. L. A. H. H. HOLROYD. May 11, 1964 [May 10, 1963], No. 18534/63. Heading A4U. A garment hanger has a resiliently mounted trouser bar -e fixed at one end only.
Patent GB-395507-A (GB)
Title: Improvements in and relating to the manufacture of laminated sheet materials
IPC: B32B27/00
Filed: 1932-06-30
Abstract: Tin tetrachloride is specified as one of the hardening accelerators that may be used with the amine-aldehyde resin produced according to Specification 388,030.
Patent GB-761108-A (GB)
Title: Rotary pipe joint for rotating air cylinders
Inventor: AKROYD MAURICE
IPC: F16L39/04
Filed: 1954-06-25
Abstract: 761,108. Chucks. PRATT & CO., Ltd., F. Sept. 23, 1955 [June 25, 1954], No. 18612/54. Class 83 (3). [Also in Group XXVIII] In a rotary joint for a rotating-cylinder 5 incorporating a piston for operating a chuck or clamping-device on a lathe &c. a body comprising three parts 1-3, is supported on an antifriction bearing 17 on the central-boss 18 of an end-flange 4 of the cylinder, the boss having ducts 6, 7 therein for the passage of air to each end of the cylinder to operate the piston. A floating carbon-seal 11 between the boss and the body has a central bore registering with one of the ducts 6 in the boss, and an annular-groove 10 registering with the remainder of the ducts 7; a peripheral flange of the seal is engaged by resilient means, and rotation of the seal is prevented by a radiallydisposed peg 12A. Fluid-inlets 14, 15 respectively communicate with the ducts 6, 7. As shown, the seal is urged by a helical-spring 12 against an annular sealing-member 9 secured to the boss of the flange, and has six passages 16, arranged 60 degrees apart, communicating via the groove 10 with the ducts 7, which are 120 degrees apart. Glands, seals or packing and lubricating-nipples are provided at different parts of the joint, and the flow of air to the inlets 14, 15 is controlled by valves.
Patent GB-295492-A (GB)
Title: Improvements in and connected with wood block flooring or paving and the like
IPC: E04F15/04
Filed: 1927-07-13
Abstract: 295,492. Bennett, W. J. July 13, 1927. Wood block flooring and paving.-Wood blocks with grooves d all round are secured together by keys c<1> inserted in the end slots and projecting on both the sides and the end or ends to interlock with the grooves in adjacent blocks. The bottom edges e are bevelled to key with a mastic bedding, and the blocks may be laid in herring-bone or panel pattern. Specification 499/15, [Class 87 (i), Bricks &c.], is referred to in the Provisional Specification.
Patent GB-357231-A (GB)
Title: Electron discharge devices
IPC: H01J19/28
Filed: 1930-06-19
Abstract: 357,231. Thermionic valves. STANDARD TELEPHONES & CABLES, Ltd., Columbia House, Aldwych, London.- (Western Electric Co., Inc. ; 195, Broadway, New York, U.S.A.) June 19, 1930, No. 18703. [Class 39 (i).] Anodes comprise flanged sections 17 with adjacent flanges 18 gripped between the legs of U-shaped wires 15. Some of the wires 15 serve as anode supports and are welded at their lower ends 15a to bands clamped around a re-entrant tube 14. The wires 15 are spot-welded to the flanges 18. The anode sections are of molybdenum roughened by a carborundum blast to increase heat radiation. Anode leads 19 are connected to the wires 15 by bands 20. The tube 14 is sealed to, and surrounds, an outwardly-projecting tube 14a carrying a further reentrant tube ending in a Y-shaped press 13. A second Y-shaped press is provided at the end of the envelope remote from the tube 14. The envelope may be aircooled.
Patent GB-403948-A (GB)
Title: Improvements in or connected with cylinder grinders and the like
IPC: B24B33/08
Filed: 1932-07-02
Abstract: 403,948. Grinding. LAKE, A. E., 113, Dunmow Road, Bishop's Stortford, Hertfordshire. July 2, 1932, Nos. 18752 and 20865. [Class 60.] Round holes, enlarging and trueing.-In a cylinder grinder having grinding-elements C3 adapted to be expanded radially by movement of cones C1, C2 by a central screwed rod B, adjusting mechanism is provided whereby the elements C3 can be expanded a definite amount whilst the grinder is rotating. The elements are mounted in a body A in the upper part of which is a rotatable ratchet disc D engaging slidably a squared part B of the rod B, and engaging the teeth of the disc D is a toothed disc E, having thereon two pins E1, E2 and pressed upwardly by springs G1, G2. The pins slide through a disc F having pins H1, H2 extending radially through oblique slots A1, A2 in the body A and connected to a collar H which may be moved upwards a predetermined amount by a collar J, the slots thus also causing the disc F to rotate and thus, through the ratchet teeth, rotating the disc D and the rod B. In a modification, Fig. 3, the adjusting mechanism is mounted on a tubular shaft which drives the grinder, this shaft comprising a universal joint A3, A6 connected to the grinder body A, a tubular part A4, and a yoke A5 ; the rod B extends within the shaft and is connected to a ratchet disc D. The disc teeth are engaged by spring-pressed pins E1 mounted in a collar F slidable on the yoke and carrying a pin H engaging an oblique slot in the yoke ; the collar F is lifted by a collar J and gives rotation to the disc D through the pins E1. The pins E1 may be retained out of engagement with the ratchet teeth by a sleeve K mounted on the collar F. In a further modification, the adjusting means is arranged on the driving shaft and the pawl is driven through pins moved by a collar on the shaft, the rotation of the collar being retarded to give the feeding motion ; a still further modification employs a ratchet wheel operated upon through a slot in the tool body by a spring controlled pawl, the ends of the slot limiting the movement of the pawl.
Patent GB-946019-A (GB)
Title: Improvements in and relating to electrode mounting
Inventor: GURTNER FRANCIS B
IPC: B23K11/30
Filed: 1962-05-16
Abstract: 946,019. Welding by pressure. BUDD CO. May 16, 1962, No. 18796/62. Heading B3R. A back-up electrode mounting comprises a base block 10 having a cooling fluid supply channel 14 and a fluid outlet channel, an upstanding supply tube 16 connected with the supply channel and mounted within an oversize hole 17 connected with the outlet channel and an electrode block 11 secured to the base block with an insulating gasket 20 therebetween, the electrode block carrying an electrode over the supply tube. The main block 10 of cast iron or steel has a number of copper electrode blocks 11 mounted in recessed seats 18, with interposed gaskets 20 of asbestos and adhesive, by screws 19, each electrode block having a pair of integral electrodes 11a 11b. A cavity 12 is formed beneath each electrode and extending into the cavities are tubes 16 connected with supply channels 14 in the block 10, fluid return being by way of oversize holes 17 and outlet channels connected to outlet pipes 15a. The tubes 16 are cut on the bevel to spread the fluid. In operation each electrode 11a, 11b is disposed beneath a circuit electrode 25 with a workpiece W therebetween.
Patent GB-835021-A (GB)
Title: Method of and apparatus for casting metal cylinders around sample rock cores
IPC: B22D15/02
Filed: 1956-06-18
Abstract: 835,021. Casting-processes; casting composite articles. DEUTSCHE ERDOL-A.G. June 18, 1956 [June 25, 1955], No. 18845/56. Class 83 (1). In a process for casting cylinders of lowmelting point metals or alloys around sample rock-cores, for carrying out flooding tests, a mould 2 containing the sample core 1 is arranged within a temperature-controlling device 3, and preheated to a temperature below the melting- point of the metal or alloy to be cast, the metal is heated to a temperature above its melting- point and introduced into the mould by a heated funnel 5, whose outlet tube 4 extends substantially to the bottom of the mould, and during the casting operation the funnel is withdrawn at a rate corresponding to that at which the melt is introduced but maintaining the end of the outlet-tube immersed in the melt. In an example, alloy having a melting- point of 135‹ C. is poured at 150‹ C. around a rock-core of 55 mm. diameter, the mould and core-assembly being heated in an electric oven 3 to a temperature of 60‹ C. The funnel is heated to about 180‹ C.