baber/WOPTO huggingface dataset:
Patent GB-662653-A (GB)
Title: Improvements in fabricated valves
IPC: F16K15/03
Filed: 1949-01-25
Abstract: 662,653. Making valves. INSHAW, J. L. Jan. 25, 1950 [Jan. 25, 1949; Feb. 8, 1949], Nos. 2071/49 and 3482/49. Class 83 (ii). [Also in Group XXIX] A housing for a hinged check-valve member 6 comprises forged steel tubular parts 1, 4, 9 connected together by flanges 2, 5 and by welding at 11. The flanges may be forged integrally with the tubular parts or welded thereto.
Patent GB-1453091-A (GB)
Title: Repair of ingot mould baseplates
IPC: B22D7/06
Filed: 1973-01-15
Abstract: 1453091 Repair of ingot mould baseplates; jointing FOSECO INTERNATIONAL Ltd 31 Dec 1973 [15 Jan 1973] 2103/73 Headings B3F and B3V A method of repairing an ingot mould baseplate comprises applying to imperfections in the surface of the baseplate a hardenable refractory mixture containing metal wire or fibres, and causing or allowing the mixture to harden in situ. The mixture may comprise a particulate refractory filler such as alumina, magnesia, silicon carbide or carbon, a binding agent such as sodium silicate, colloidal silica sol., phosphates or phosphoric acid, bentonite, and steel, Fe, Ni, Ti, W, Mo or Cr fibres. The imperfections may be partly filled by preformed refractory inserts, these inserts being held in place by the hardenable refractory mixture.
Patent GB-688271-A (GB)
Title: Improvements in or relating to navigation aiding radio systems
IPC: G01S1/02
Filed: 1950-01-27
Abstract: 688,271. Radio navigation. STANDARD TELEPHONES & CABLES, Ltd. Jan. 27, 1950 [June 25, 1949], No. 2200/50. Class 40 (vii). An airborne homing direction-finder for determining the bearing of a ground transmitter relative to the heading of the aircraft comprises two spaced aerials, means for simultaneously combining the signals received by said aerials to give sum and difference resultant signals and means for amplitude modulating the difference signal and for combining it cophasally with the sum signal to give a signal whose modulation depth is proportional to the bearing, the phase of the modulation relative to the modulating signal being dependent on the sense of the bearing, i.e. port or starboard. The invention is described as applied to a system for enabling an aircraft to make an automatic asymptotic approach to a course line defined by a localizer beacon in which the automatic pilot is controlled by a signal proportional to the difference between the relative bearing and the angular deviation of the aircraft from the course line. The direction-finder comprises two hori. zontally-spaced collinear aerials 1 and 2, Fig. 1, (not shown), mounted perpendicular to the longitudinal axis of the aircraft, the adjacent ends of the aerials being coupled to the direction-finder so that when the relative bearing is zero the signals received by aerials 1 and 2 are in phase and the input signals to the directionfinder from 1 and 2 are in opposite phase. The signals from 1 and 2 are combined sirnultaneously in phase and phase opposition at points 11 and 12, respectively of a coaxial line bridge 8, Fig. 3, and the resultant difference signal E 11  at 11 is modulated sinusoidally at a frequency of 400 c/s. by varying the shunt impedance of a line 13 at a point 14 #/4 from point 11. The resultant modulated signal E<SP>1</SP> 11 , is applied through a #/4 line 18 to point 12 and combined with the summation signal E 12  giving a resultant modulated signal (E 12  - E 11 <SP>1</SP>), a D.C. voltage of magnitude and sign proportional to the magnitude and sense of the relative bearing being produced by demodulating the signal (E 12  - E<SP>1</SP> 11 ) in receiver 19, selecting the 400 c/s. modulation component by a filter and applying it together with the 400 c/s. modulating voltage to a phase-sensitive rectifier, Fig. 4 (not shown).
Patent GB-930240-A (GB)
Title: Improvements in the internal coating of flanged hollow bodies
IPC: B05D7/22
Filed: 1961-01-19
Abstract: <PICT:0930240/III/1> <PICT:0930240/III/2> An improvement in the process of coating a flanged hollow body, e.g. a pipe, by bolting or clamping the heated body to an aerating vessel from which an aerated thermoplastic powder is transported into the heated body comprises inserting a spacer ring between the flange of the body and the corresponding flange face of the coating apparatus, said spacer ring having an internal diameter corresponding to the internal diameter of the body plus the portion of the flange to be coated.  The aerated powder may be in a state of aeration intermediate between that of a fluidized bed and a loosely settled powder (as described in Specification 912,464).  The spacer ring acts as a mask preventing parts of the flange of the hollow body from being coated.  The spacer ring may be secured to the body to be coated or to the coating apparatus by pins or clips arranged around its circumference, which pins or clips are inserted into bolt holes of the body or aerating vessel; may be hollow to allow circulation of cooling fluid, e.g. water; and may be provided with ports or slots to allow the passage of air but not the coating particles.  The spacer ring may be permanently fixed to or held against the coating apparatus by a clamp.  The ring may be of metal coated with a release agent. Referring to Fig. 3, spacer ring 21 provided with annular air and cooling fluid passages 34 and 37, is bolted to flange 20 of funnel-shaped structure 16, 19 in aerating vessel 11 and secured to pipe 26 by location pins 23 engaging bolt holes 24 in the pipe flange 25.  The assembly is clamped by clamp 27.  A similar arrangement is provided at the other end of the flanged pipe 26. In operation, the aerating vessel 11 is pushed upwards while the rest of the assembly remains stationary and the powder is displaced into funnel-shaped structure 16, 19 and into heated pipe 26.  After allowing sufficient time to obtain the necessary coating the vessel is lowered and any unwanted coating particles adhering to the pipe flanges 25, 251 is removed by a blast of air through inlet pipes 35 and 351.
Patent GB-1074363-A (GB)
Title: Production of decalin
Inventor: KEENAN JOHN FRANCIS EDMUND
IPC: B25B5/06
Filed: 1965-01-19
Abstract: Decalin, predominantly in the cis form, is produced by hydrogenating either tetralin alone or a solution of naphthalene in cis-decalin or tetralin with hydrogen in the presence of a rhodium catalyst.  The catalyst is preferably finely divided rhodium metal supported on a conventional carrier, preferably carbon.  The product may be recovered by filtering off the catalyst, and optionally further purified by conventional means, e.g. fractional distillation. Part of the cis-decalin product may be recycled for use as solvent. Preferably the hydrogenation process is preceded by a pretreatment of the tetralin or solution of naphthalene by stirring with a desulphurization or hydrogenation catalyst, e.g. Pt, Pd, Co, Ni or Fe, on a conventional support.
Patent GB-1406212-A (GB)
Title: Auger conveyor
IPC: A01D33/00
Filed: 1974-01-17
Abstract: 1406212 Root harvesters DEERE & CO 17 Jan 1974 [19 Jan 1973] 02277/74 Heading A1F [Also in Division B8] A conveyor 118, shown in vertical section in Fig 2, comprises an auger flight 122 mounted for rotation about its axis within a housing 114 and an endless chain 154 carrying spaced paddles 152 and having a non-adjacent the housing 114 extending from an entry roller 158 to an exit roller 156, the paddles 152 in this run extending through an opening in the housing 114 into the spaces between the turns of the auger flight 122, the exit roller 156 being spaced further from the axis of the auger flight 122 than the entry roller 158 so that, in operation, the paddles 152 are progressively withdrawn from the spaces as they advance from the entry roller 158 to the exit roller 156. A beet harvester 10, Fig 1, incorporates digger wheels 46 to lift beet from the ground and paddles 48 to pass the beet rearwardly to a chain conveyor 78 and thus to an auger conveyor 90 with a trough formed by four cleaning rolls 96. The conveyor 90 feeds the beet to the conveyor 118, the paddles 152 assisting the vertical conveying while their gradual withdrawal minimises damage to the beet. The conveyor 118 feeds the beet to a transverse conveyor 134 and thus to a truck (not shown) driven alongside the harvester 10.
Patent GB-547362-A (GB)
Title: Improvements connected with electric contactors
IPC: H01H50/64
Filed: 1941-02-19
Abstract: 547,362. Electromagnetic switches. CLARKE, R., and SCOTT, G. J. Feb. 19, 1941, No. 2291. [Class 38 (v)] The contact holder 8 of an electromagnetic contactor carries a spring-controlled rocker arm contact 5 and is itself mounted on guiding elements 10 fixed to the armature 2, spring or springs 12 pressing the holder 8 towards the armature and absorbing any rebound when the armature strikes the core. Specification 546,435 is referred to.
Patent GB-1086532-A (GB)
Title: Improvements in and relating to hydraulic mine roof supports
Inventor: TAYLOR LAURENCE WILLIAM
IPC: E21D23/00
Filed: 1964-01-18
Abstract: 1,086,532. Hydraulic pit props. W. E. & F. DOBSON Ltd. Jan 11, 1965 [Jan. 18, 1964], No. 2315/64. Heading E1E. [Also in Division F2G]  Fluid is supplied to the pressure chamber 2 of a mine roof prop (Fig. 1) from an external line to which a hydraulic coupling (Fig. 2) is connected to provide a charging unit for removable plug-in fitment to a prop coupling valve 8 and forms a sealed outlet duct for the fluid at the junction between the outlet passage 18a thereof, and the inlet passage 12 of the valve 8. The sealed passage comprises an annulus 13 around the passage 12 to communicate with the outlet duct 19 between sealing rings 22, 23. A releasable catch 25 locates the unit when connected to the valve 8. The valve 8 leads to a pipe 6 passing through the prop's ram 3 into the pressure chamber 2 of the cylinder through a non-return valve 7, a valve 4 being used for automatic overload relief and manually-operated release of fluid pressure. A roof support (Fig. 3) may have two props with respective coupling valves 8, 8', inter-connected by an advancing cylinder-andram 29, to which a reservoir 32 is connected by pipe lines 30, 31. In the latter there is a coupling valve 8" to connect the charging unit. On the reservoir 32 is a return coupling valve 8"' to connect a return charging unit from the props or cylinder-and-ram 29.
Patent GB-898324-A (GB)
Title: Polymerization process
IPC: C08F10/00
Filed: 1961-01-20
Abstract: A compound having a carbon-to-carbon triple bond is polymerized in a liquid reaction medium using as catalyst a carbonyl of a Group IVb metal.  Specified compounds include acetylene, propyne, phenyl acetylene, propargyl alcohol, propiolic acid, propargyl acetate, and 1:6-heptadiyne.  They may be copolymerized with one another or with a compound having ethylenic unsaturation.  The carbonyl may have the formula LnM(CO)m where M is a Group IVb metal, L at least one substituent attached directly to M, n an integer corresponding to the total co-ordinating capacity of L, m an integer and m+n is six; molybdenum hexacarbonyl is specified.  Solvents including petroleum ether, cyclohexane, pentane, benzene, diethyl ether, acetone, ethanol, acetonitrile, and dimethylformamide, are given and may be mixed with water.
Patent GB-469422-A (GB)
Title: Improvements in or relating to the preparation of pigments for enamels, laquers, inks and the like
IPC: C09B67/20
Filed: 1936-01-24
Abstract: Pigmented base materials for the preparation of nitrocellulose and other cellulose derivative plastics, enamels, lacquers, &c., are obtained by grinding together in the presence of excess water nitrocellulose and a pigment both in the water-wet condition, simultaneously or subsequently incorporating an aqueous emulsion of an oil, which may be prepared in situ, the oil being incapable of colloiding the cellulose derivative, then breaking the emulsion, and finally separating the uncolloided but pigmented cellulose derivative from the aqueous medium.  As an alternative to the oil emulsion there may be used an emulsion of an oil acid, a metal soap, a natural or synthetic resin, or a wax.  Breaking of the emulsion may be effected by the addition of acid, or by selecting a pigment containing a sufficient proportion of salts. In examples, toluidine toner chrome yellow press cake, nitrocellulose and water are ground in a ball mill or by kneading or in a colloid mill, and the charge then transferred to an agitator and an aqueous emulsion of blown castor oil and triethanolamine oleate added, and later the emulsion is broken by the addition of citric acid; a similar process is employed starting with Chinese blue press cake, nitrocellulose and blown castor oil emulsion except that in this case a proportion of soya lecithin emulsion is also added; bone black, nitrocellulose and water are ground together and before adding the emulsion, in this case oleic acid emulsion, it is advantageous to wash the nitrocellulose slurry in order to remove a proportion of the salts contained in the pigment.
Patent GB-696466-A (GB)
Title: Method of and apparatus for removal of metallic iron from zinc-containing materials such as zinc dross and iron-zinc compounds
IPC: C22B7/00
Filed: 1952-01-29
Abstract: 696,466. Liquation; coating with zinc. HOLMBERG, T. F., and GRONBLOM, B. Jan. 29, 1952 [Sept. 26, 1951], No. 2433/52. Classes 82(i) and 82(ii) A method of removing metallic iron from zinc-containing substances comprises introducing the zinc-containing substance into a molten lead bath, maintained at a temperature such that the zinc is dissolved whilst the iron remains undissolved, removing the iron from the surface of the bath, lowering the temperature of the lead bath to that at which the zinc separates, and then removing the zinc. The initial temperature of the lead bath is over 600‹C and the final temperature is either 420‹C in which case the zinc is solid, or 440-450‹C, in which case it is liquid. The Figure shows how the process may be used to recover the zinc from the zinc dross in a hot galvanizing process. A container 1, for a galvanizing bath consisting of a zinc layer Zn and a lead layer Pb, is heated to a temperature of 430-460‹C by a,furnace 6. A second container 2 is connected by an upper tube 3 and a lower tube 4 to the lead layer of the container 1, and is maintained at a temperature of about 700‹C by a furnace 6a. Iron plates are galvanized by dipping into the zinc layer in container 1 and the zinc dross formed sinks to the top of the lead layer from whence it is removed by scooping. The zinc dross is then placed in container 2 where the zinc dissolves in the lead and the iron floats to the surface to be removed. Thermosyphonic acton causes the zinc-containing lead to pass along the tube 3 into the container 1 where the zinc separates and passes into the upper galvanizing layer. Pure lead passes from container 1 to container 2 via the lower tube 4.
Patent GB-538627-A (GB)
Title: Improvements in or relating to transfer sheet shifting devices for use with recording machines
IPC: B41J17/00
Filed: 1940-02-08
Abstract: 538,627. Typewriters &c. SMITH & SON, Ltd., W. H., (Standard Register Co.). Feb. 8, 1940, No. 2472. [Class 100 (iv)] Carbon-sheet arrangements. In arrangements comprising a travelling carrier for carbon sheets which are interleaved with stationery webs, backward movement of the webs during retraction of the carbon sheets is automatically prevented by means of a one-way detent or brake. In the apparatus shown in the Figure, a frame 7, secured to the carriage 2 of a typewriter, supports a carbon-sheet carrier 11 provided with guide-pinions which co-operate with holes or indentations 10 in the frame. The webs 6 pass from a holder 14, under' guides 15 on the frame, and around a platen 13 provided with pins 4 of the kind described in Specification 408,125 for engaging perforations 5 in the webs. The carbonsheets and webs are gripped between eccentric rollers on the carrier 11, one of the rollers 19 being secured to a spring-urged shaft 18, and the other roller being connected to a bail 29 which is connected by a cable 28 to a pull-handle 27: The perforations 5 engage pin-wheels 22 mounted' on the frame 7; one of the pin-wheels being provided with a. ratchet-wheel which co-operates with a detent to prevent reverse movement of the webs. During typing of a set of forms; the webs and carbon sheets are advanced as a unit, and the carrier 11 is drawn downwards. The handle 27 is then depressed to release the 'rollers 19 and retract the carrier and the carbon sheets, retraction of the webs being prevented by the detent and ratchet-wheel. The detent and ratchetwheel may be replaced by a pivoted, spring- urged detent which co-operates directly with the holes 5 to prevent retraction of the webs.
Patent GB-812421-A (GB)
Title: Improvements relating to mechanical distributors for applying artificial manures andother granular materials to land
IPC: A01C15/16
Filed: 1956-01-25
Abstract: 812,421. Manure and fertilizer distributers. HARTLEY, G. S., and HARTLEY, M. J. Jan. 16, 1957 [Jan. 25, 1956], No. 2486/56. Class 6(1). A distributer for applying artificial manures, fertilizers and other granular materials to land comprises a roller 10 rotatable about a transverse axis and members 14 through which the material can be conducted from a hopper 1 to the roller .10 the members having walls shaped to fit the roller and discharge openings 18. The members are retained in position by means of a spur 15 and a spur 19 is provided to prevent the members 14 from being jolted off the roller when in use. The hopper is provided with a number of funnels 9 each of which projects into a member 14. The funnels 9 and members 14 are made of polythene and the roller 10 is formed of a polythene tube fitted over a steel tube. The roller 10 is driven by means of a wheel 21 which engages a land wheel 5. The wheel 21 drives by gearing 31 a wheel 36 which engages a disc 26 mounted on a shaft 23 connected to the roller 10 by belt and pulley gearing 28, 29. The speed of rotation of the roller 10 is varied by adjusting the position of the wheel 36 with respect to the disc 26.
Patent GB-872240-A (GB)
Title: Improvements in and relating to the re-treading of pneumatic tyres
IPC: B29B17/02
Filed: 1960-01-25
Abstract: 872,240. Cutting-machines. MICHELIN & CIE. Jan. 25, 1960 [Jan. 27, 1959], No. 2655/60. Class31(1). A machine for removing a worn tread together with the crown reinforcement of a pneumatic tyre comprises means for supporting the tyre and rotating it about its axis, a cutter having a blade mounted so that it can be made to penertate the tyre between the tread and the carcase, and means for setting the blade at an adjustable distance from the axis of the tyre, for displacing it parallel to that axis and for varying its angularity relative to that axis. The tyre 1, Fig. 4, is carried by discs 15, 16 mounted on the screw-threaded end of a rotatable shaft 13 having fixed thereto a platform 12 for supporting the tyre. A cutter 26 having a blade 31 is carried at the end of a screw-threaded rod 25 which is movable by means of a hand wheel 27 in the direction of arrow F2 relative to the bore of a carriage 22 which is displaceable in the direction of arrow F1 in a support 21 by means of a hand wheel 24 on a screw-threaded rod 23. The support 21 is fixed to an arm 19, Fig. 3, carried by a table 20 which can be moved as indicated by arrow F2, Fig. 5, by means of a hand wheel 37 on a screwthreaded rod 35. A slide 39 is displaceable along a table 20 in the direction of arrow F3, to vary the position of the arm 19 relative to the axis Z-Z of the tyre, by means of a hand wheel 41 on a screw-threaded rod 40. The arm 19 is fixed to a pivotally mounted plate 44, Fig. 5, which can be turned in the direction of arrow F4, to vary the angularity of the cutter axis Y-Y relative to the axis of the tyre, by means of a hand wheel 51 on a screw-threaded rod 50. In operation, the platform 12 is set in rotation and by operation of the hand wheels 41, 24, 27 and 51, the cutter blade 31 is brought close to the base of the crown reinforcement and at the angularly Y<SP>1</SP>-Y<SP>1</SP>, Fig. 4, relative to the axis of the tyre which approximately corresponds to the curved transverse contour of the tyre carcase. The blade 31 is then slowly lowered until it penetrates the tyre. As it does so, the stock of the cutter follows and, as shown in Fig. 9, forces the tread 6 and crown reinforcement 5 away from the carcase thus facilitating further penetration by the blade. As the penetration increases, the angularity of the cutter relative to the axis of the tyre is reduced to suit the transverse contour of the carcase. When the blade has been caused to penetrate as far as the medial plane X-X of the tyre, the cutter is lifted while its angularity is adjusted and the rotation of the platform 12 stopped. The tyre is then turned over so as to enable the other half of the tread and its reinforcement to be separated. The angularity of the cutter may be adjusted automatically, e.g. by means of a cam having a profile corresponding to that of the carcase. Specifications 628,060, 677,166, 698,915 and 808,824 are referred to.
Patent GB-529369-A (GB)
Title: Improvements in or relating to oil burning heaters
IPC: F24C5/00
Filed: 1939-01-26
Abstract: 529,369. Unit air heaters. IMBER, J. Jan. 26, 1939, Nos. 2663 and 32772. [Class 137] [Also in Group XI] In a unit air heater having a fan 26 driven by the hot gases from an oil burner 4, the fan 26 draws in cold air at the rear of the casing and causes it to pass above a partition 8 over the heated cylinder 11, and out through an opening 14 at the front of the casing. The motor 28 and flue 32 are as described in Specification 521,359, [Group XXVII].
Patent GB-877180-A (GB)
Title: Improvements relating to disazo dyestuffs and their use
IPC: C09B35/227
Filed: 1959-01-26
Abstract: The invention comprises dyes of formula:-  <FORM:0877180/IV(c)/1> where A is a bisphenyl residue with the benzene rings bound to each other via a sulphur atom either direct or by means of an organic intermediate member, X is H or OH, and SO2Y is a sulphamide group containing a sulphonated organic residue.  They may be made in conventional fashion from appropriate tetrazotized diaminobisphenyls and naphthylamine derivatives.  Advantageously the tetrazo components contain no free SO3H groups but may contain groups such as halogens, alkyl, alkoxy, aryloxy, acylamino and alkylsulphonyl groups.  Tetrazo components indicated are bisaminophenyl sulphides, sulphoxides and sulphones, bisaminophenyl sulphonamides derived from aliphatic, araliphatic, cycloaliphatic, isocyclic-aromatic and heterocyclic diamines, secondary diamines being preferred, bis-aminobenzene sulphonates of diphenolic compounds and corresponding compounds derived from amino hydroxy aryl compounds e.g. p-aminophenol and 2- or 4-amino-31-or -41-hydroxy-diphenyl ether, secondary amines again being preferred.  Preferred naphthylamine components are amides of 2-naphthylamine-7- and 2-naphthylamine- 8-hydroxy-6-sulphonic acids. Especially preferred naphthylamine components are those in which the amide nitrogen atom is disubstituted and which, in addition to the sulphonated organic radical, contains an aliphatic, cycloaliphatic or araliphatic unsulphonated radical.  Representative of specified naphthylamine components are: 2-naphthylamine-5-, -6- or -7- N-(b -sulphoethyl)-N-methyl amide, -sulphonic acid- N- 41-chloro-21-sulphobenzyl amide, -sulphonic acid- N- 41-sulpho-benzyl-N-benzyl amide, -sulphonic acid-N-31-sulphophenyl- N-ethyl amide and -sulphonic acid- N- 71-sulphonaphthyl-(21)-amide. Preferred dyes are those in which the azo groups are in the ortho position to the sulphur substituent, especially when a sulphonamide group.  The dyes dye wool and natural and synthetic polypeptide fibres from a neutral or acid bath in orange and yellowish or blueish-red shades.  Preferred orange dyes come from 2-naphthylamine-7-sulphonamides and preferred red dyes from 2-naphthylamine- 8-hydroxy- 6-.  Examples are provided of the preparation of the dyes and their use in dyeing wool.