baber/WOPTO huggingface dataset:
Patent GB-873601-A (GB)
Title: Improvements in or relating to processes for treating powders with gases
IPC: B04C9/00
Filed: 1957-10-07
Abstract: <PICT:0873601/III/1> <PICT:0873601/III/2> Finely divided solids are treated with gases in a process wherein the solid is passed through at least one pre-treatment zone in dilute phase contact with a gaseous medium, then through at least one reaction zone where it is contacted with a gaseous medium in a fluidized bed, and then through at least one recovery zone in which is contacted with a gaseous medium in dilute phase or in a fluidized bed.  The solids and gases from the recovery stage are separated, and the gases are fed to the reaction stage, and the solids and gases from the reaction stage are separated and the gases fed to the pre-treatment stage.  An additional stage may be introduced in the process in which the solid is treated with another gas, for example, for heating purposes.  The process is especially suitable for the hydrofluorination of hydrated alumina to form anhydrous aluminium fluoride.  It may also be employed for treating oxides, e.g. Al2O3, CaO, MgO, Na2CO3, UO2 or TiO2, or other compounds with acids, e.g. HCl or HF, for hydrogenation, smelting of sulphides, dehydration, and for drying purposes.  The Figures illustrate a suitable apparatus for carrying out the invention. In Fig. 1, finely divided hydrated alumina is fed from a hopper 1 into the bottom of a pipe 4, forming a first pre-treatment zone in which the alumina is contacted as a suspension with hot gases poor in HF, obtained from separator 16 (Fig. 2), in order to partially dehydrate and fluorinate the alumina.  The suspension is separated in separators 5, the gases passing to waste and the powder passing to bottom of pipe 10, in which it is contacted with a hot air stream in dilute phase, from generator 9, to complete the dehydration.  The suspension is separated in separators 11, the gases passing to waste, and the powder passing to the bottom of pipe 15, which is situated above the reaction vessel 13, and is fed with the gases therefrom, in which pipe the powder is entrained, separated in separators 16, and passed to reaction vessel 13, preferably operated at 400-600 DEG C., where it is fluidized by gases from separators 21.  The powder passes to the bottom of pipe 20, the recovery zone, and is entrained by gases rich in HF, thereby heating the gases.  The suspension is separated in separators 21, the anhydrous aluminium fluoride product being withdrawn via line 23. The fluidized bed reaction vessel preferably has a perforated base between 0.1 and 10 mm. thick, with orifices of between 0.1 and 3 mm. diameter, the distance between orifices preferably being up to 20 times their diameter.
Patent GB-1073812-A (GB)
Title: Travelling wave electron discharge device
IPC: H01J23/26
Filed: 1965-07-22
Abstract: 1,073,812. Travelling wave tubes. VARIAN ASSOCIATES. July 22, 1965 [July 23, 1964], No. 31338/65. Heading H1D. A travelling wave tube has a stub-supported helix derived slow-wave structure, e.g. of the ring and bar type, in which the physical length L of the stubs falls within:- where # = c/f 0 , f 0  being the centre frequency of the operating band and c the average velocity of a plane electromagnetic in the dielectric medium between the stubs. With L between these limits, preferably equal to #/6, there is no correspondence between the fundamental frequencies within the operating band and the second harmonic of these frequencies, and the frequency at which the stub mode propagates, the stub mode thereby being -suppressed. The tube is driven under saturated power output conditions, and to increase the power handling capabilities the conductive stub supporting structure is provided with two cooling channels. A circuit sever is provided and the two slowwave circuit sections are terminated in dissipative loads.
Patent GB-604029-A (GB)
Title: Improvements in or relating to thermal power plants
IPC: F02C1/06
Filed: 1945-11-21
Abstract: 604,029. Gas turbines. ESCHER WYSS MASCHINENFABRIKEN AKT.-GES. Nov. 21, 1945, No. 31354. Convention date, Dec. 14, 1944. [Class 110 (iii)] A gas-turbine plant of the type in which the air is compressed in at least one compressor, then heated indirectly in an air heater and expanded in turbines at least one of which drives the compressor, and in which the exhaust from the turbine passes into the combustion chamber of the air heater is characterized by the fact that only a part of the air issuing from a first turbine passes, after reheating, into a second turbine and only the exhaust of the latter turbine is used in the combustion chamber. In the plant shown, the air is compressed in a compressor 37, heated in the heating system 38 of the heater 39 and passed into the turbine 40. A part of the exhaust air from this turbine passes through a second heating system 44 in the heater 39 in which the air is reheated before passing to a second turbine 41 the exhaust of which passes through a pipe 46 as combustion and mixing air for the combustion chamber of the heater 39. The remaining part of the exhaust air from the turbine 40 is supplied to a third turbine 42 which may expand down to atmospheric pressure. The exhaust air from the turbine 42 is passed to a heat exchanger 49 in which part of the air from the compressor 37 is preheated before passing into the heating system 38 at the point 51 at which the temperature of the gases in the heater 39 are higher at the point 53 at which the remainder of the air enters the heating system. The Specification as open to inspection under Sect. 91 comprises also an arrangement, Fig. 1 (Can,celled), in which air is compressed in a compressor 1, heated in a heating system 4 in a heater 5 and then expanded in a turbine 7 driving the compressor. The exhaust from the turbine 7 is supplied as combustion and mixing air to the heater 5 through the pipes 10 and 11 and to another consumer through the pipe 12. In a modification, the combustion and mixing air is branched-off from a point on the turbine before the working fluid has fully expanded and part of the combustion gases can be used in a gas turbine. In a further modification, part of the exhaust air from the turbine 7 is used to preheat part of the compressed air from the compressor. In a still further modification, part of the air from the heating system 4 is bled-off before the end of the system and used in a further turbine. Oil, producer gas, blast furnace gas, or a solid fuel may be burnt in the combustion chamber 13 of the heater. This subject-matter does not appear in the Specification as accepted.
Patent GB-789439-A (GB)
Title: Steam heated drying apparatus for drying moist materials
Inventor: SOLHEIM PETER
IPC: F26B17/28
Filed: 1956-10-16
Abstract: 789,439. Drying apparatus. STORD MARIN INDUSTRI AKTIESELSKAP Oct. 16, 1956, No. 31406/56. Class 34(2): A drying apparatus for drying animal materials comprises a steam-jacketed stationary cylindrical drum having an inlet 12, Fig. 1, and outlet 13 for the material in which is mounted a hollow cylinder 19 carrying a plurality of hollow disc-shaped members 22. Steam is supplied to each disc through pipes 17, 24 and when the cylinder 19 is rotated in an anticlockwise direction the condensate is collected by a partition plate 28, Fig. 2, and passes through a stub pipe 27 into the interior of cylinder 19 and is exhausted through a pipe 29.
Patent GB-362101-A (GB)
Title: Improvements in or relating to closures for bottles or the like
IPC: B65D41/34
Filed: 1930-10-21
Abstract: 362,101. Stoppers for bottles. YOUNG, S. D., 41, Sandon Road, Edgbaston, Birmingham. Oct. 21, 1930, Nos. 31541/30 and 6888/31. [Class 125 (iii).] A closure for a bottle &c. of the type comprising a screw-cap and an annular sealing band, is fitted to a bottle having opposite threads 1, 2 on the neck thereof, into engagement with which the cap 4, and the band 10 are spun. The sealing band is weakened by perforations &c. 14 to facilitate removal, and may have a tearing tab 13. A suitable machine for applying the capsule is described in Specification 234,352, [Class 125 (ii), Bottles &c., Filling &c.].
Patent GB-1510381-A (GB)
Title: Dioxaphosphorinane derivatives as flameproofing agents
IPC: C07F9/6571
Filed: 1975-07-28
Abstract: 1510381 Dioxaphosphorinane compounds SANDOZ Ltd 28 July 1975 [30 July 1974 26 May 1975] 31558/75 Heading C2P [Also in Divisions C3 and D1] Novel phosphorous compounds have the Formula (I) where each X is O or S ; each R 1  is H, C 1-4  alkyl, -CH 2 Cl, -CH 2 Br, or phenyl; each R 2  is H, C 1-4  alkyl, -CH 2 Cl or -CH 2 Br or R 1  and R 2  together with the C atom form a cyclohexane, cyclohexene or 3,4-dibromocyclohexane ring; each of R 3  and R 5  is H or C 1-4  alkyl and each R 4  is H or methyl; provided (i) at least one of R 1-5  is not H; (ii) if each of R 1  and R 2  is -CH 2 Cl or -CH 2 Br or R 1  and R 2  form a ring, R 3 -R 5  are H; (iii) if X is O each of B 1  and R 2  is -CH 2 Cl or -CH 2 Br or R 1  and R 2  form a ring (iv) if X is S and R 1  is CH 3  and R 2  is H or CH 3 , at least one of R 3 -R 5  is not H; (v) if X is S, R 1  and R 2  are H, and R 3  or both R 4  and R 5  is/are hydrogen, then CB 4 R 5  or R 3  respectively cannot be CH(CH 3 ) or CH 3  respectively. The compounds prepared by hydrolysing one or two compounds of Formula (II) with water in the presence of a base. The compounds are used for flameproofing organic materials. 2 - Chloro - 2 - thio - 5,5 - bis(bromomethyl)- 1,3,2 - dioxaphosphoninane is prepared from thiophosphonyl chloride and 2,2-bis(bromomethyl)-1,3-propanediol. The compounds of formula are prepared from phosphonyl or thiophosphonyl chloride and 1,1-dihydromethyl-3,4- dibromocyclohexane or by brominating the corresponding 3,4-cyclohexane derivatives.
Patent GB-153481-A (GB)
Title: Improvements in apparatus suitable for the water concentration of ores or the like or for similar purposes
IPC: B03B5/04
Filed: 1919-12-16
Abstract: 153,481. Martin, W. M. Dec. 16, 1919. Vanning-machines.- Apparatus for the water-concentration of ores &c. comprises an inclined table, to every part of which is imparted the same circular or approximately circular movement such as to cause the values to travel up the incline. The table a is mounted on an intermediate base b and on a base d so that it can be adjustably inclined in two directions. Brackets h depending from the base d are mounted on pins i adjustable more or less out of line with shafts i, the shafts j being all rotated in the same direction by bevel-gearing l. Rcds m<1> pivoted to the table are mounted in dash-pots m. The material to be treated is delivered to the table at the lower end s and water at the higher end t, and the values pass up the table to a transverse shallow groove n, hump p, and a second groove o, Figs. 2 and 6, different values being discharged from the grooves n, o and at the upper end of the table, and the gangue passing off at the lower end with the water.
Patent GB-1088224-A (GB)
Title: Acetamidine derivatives
Inventor: JULIA MARC
IPC: C07C233/12
Filed: 1965-07-23
Abstract: The invention comprises compounds of formula <FORM:1088224/C2/1> wherein X represents a nitro or amino group and Y represents a hydrogen atom or alkyl group having up to six carbon atoms, and acid addition salts thereof, and the preparation thereof by reacting a nitrobenzamidoacetonitrile under anhydrous conditions with an alcohol ROH (where R represents an alkyl group containing up to 6 carbon atoms) in an inert organic solvent, saturating the reaction mixture with anhydrous hydrogen chloride, separating the resultant imino-ether hydrochloride and reacting it in an anhydrous alcohol ROH with ammonia at a temperature below 20 DEG  C., and optionally reducing the nitro group in the nitrobenzamidoacetamidine hydrochloride product to a primary amino group, and, if desired, converting the hydrochloride product into the free base.  The nitrobenzamidoacetonitrile starting materials may be prepared by reacting an aminoacetonitrile with a nitrobenzoic acid halide. Therapeutic compositions, which may be administered orally, rectally or parenterally, comprise as active ingredient at least one compound of Formula (I) above, or a non-toxic acid-addition salt thereof. Compounds in which X represents an amino group show an especially marked anti-depressive action.
Patent GB-1133129-A (GB)
Title: Improvements in alternating current control circuits
Inventor: WILLIAMS JOHN LLEWELLYN
IPC: H02P27/02
Filed: 1966-07-14
Abstract: 1,133,129. Thyristor switching circuits. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 6 July, 1967 [14 July, 1966], No. 31595/66. Addition to 1,088,843. Heading H3T. [Also in Divisions H1 and H2] In the A.C. power control circuit of the parent Specification, which may be used for controlling the speed of a squirrel-cage motor, the means for varying the transformer no-load impedance is a controlled semi-conductor device connected across turns of the transformer winding. As shown, a pair of parallel-connected opposed polarity silicon rectifiers 19 controlled by pulses from a three-phase shift oscillator (Fig. 3, not shown) are connected across some of the turns of each phase of a three-phase autotransformer. A similar arrangement driven from the same oscillator is used to vary the impedance of the further circuit elements 14. In a modification (Fig. 2, not shown), the further elements 14 are replaced by a pair of controlled rectifiers only, which acts as a variable impedance. In a further modification (Fig. 4, not shown), the pair of controlled rectifiers is replaced by a full-wave rectifier circuit across which is connected a further circuit including two silicon rectifiers (32, 37) controlled by a pulse generator (33).
Patent GB-699108-A (GB)
Title: Improvements relating to the cooling of cement clinker or the like
IPC: F27B7/40
Filed: 1950-12-29
Abstract: 699,108. Cooling cement clinker &c. SMIDTH & CO. AKTIESELSKAB, F. L. Dec. 29, 1950 [Dec. 30, 1949], No. 31617/50. Class 51(ii) A method of cooling cement clinker or other material coming continuously from a furnace in which the material is cooled in two stages by the passage of a current of air through it twice, the air first passing in contact with material which has already been partly pooled in the first or hightemperature stage, next successively through a cyclone and a fan, and then in contact with further material in the first stage of the cooling of that material, and finally being used as air for combustion in the furnace. As shown in Fig. 1 cement clinker to be cooled travels along the upper run 5 of an intermittently driven conveyer and then along the lower run 40 before being discharged through the opening 8 cooling air being passed through both runs. Box-like structures 12, 14, with perforated tops 42, 41, are provided to support the respective runs 40, 5, for the greater part of their travel. Cooling air fed by a fan 18 into the box 12 flows through the top 42, the run 40 and clinker thereon into a space 45 from whence it passes through an opening 17 to a cyclone 20, where any dust is separated out. From the cyclone the cleaned air passes to a fan 23 which boosts it and delivers it to the box 14 for distribution upwards through the top 41, the run 5 and the clinker thereon and thence to the kiln to serve as secondary combustion air. The dust from the cyclone passes through a pipe 21 to join the cooled clinker discharging through the opening 8 whilst part of the air leaving the cyclone 20 may be led through a pipe 25 for use as primary combustion air. In the plant shown in Fig. 3 the discharge end of a rotary kiln provided with a burner tube 2 is surrounded by planetarily arranged cooler tubes 28 each of which is connected to the kiln by a radial passage 27. Air flowing in through the openings 29 cools the clinker in the tubes and then passes into the kiln through the passages 27 where it becomes subjected to chimney draught, drawing part of it through the kiln to serve for secondary combustion, and to the action of a fan (not shown) drawing the remainder of it through an opening 31 in a stationary casing 30. The air passing through the opening 31 is cleaned in a cyclone before reaching the fan which delivers it to an opening 32 in a casing 33 from whence it passes through openings 34, passages 35, a grate 26 and the clinker thereon to the interior of the kiln where it is also used for secondary combustion. The material to be cooled may be roasted iron ore or aluminium oxide. Specification 699,107 is referred to.
Patent GB-760222-A (GB)
Title: Improvements in and relating to electromagnetic vibrators
Inventor: ARMSTRONG CHRISTOPHER JOHN
IPC: H01H50/76
Filed: 1952-12-12
Abstract: 760,222. Converting. WALTER INSTRUMENTS, Ltd. Dec. 9, 1953 [Dec. 12, 1952], No. 31619/52. Class 38 (2). [Also in Group XXXVII] A vibrator (see Group XXXVII) having an operating coil 14 which vibrates a reed contact 16 to alternately engage a pair of contacts 19, 20 is employed in a system for obtaining A.C. from D.C. source 33, the contacts 19, 20 being connected through terminals 28, 29 across the ends of a resistor 31 and the reed 16 being connected through a terminal 30 to one end of the operating coil 14. On closure of the switch 32 the reed is attracted whereupon the contacts 16, 20 engage and the coil 14 is shortcircuited. The reed 16 thus springs back and engages contact 19 and the coil is re-energized to attract the armature again. The closure of contacts 16, 19 and 16, 20 also causes the shortcircuiting of the upper and lower parts, respectively, of the resistor 31, which in turn causes a momentary increase in the current in the corresponding half of the transformer primary 34 whereby an A.C. voltage having a frequency equal to the vibratory frequency of the reed is induced in the transformer secondary 36. Specification 694,500, [Group XXXVII], is referred to.
Patent GB-985060-A (GB)
Title: Electrical sputter-ion pump apparatus
IPC: H01J41/20
Filed: 1962-08-17
Abstract: 985,060. Ion pumps and gauges. VARIAN ASSOCIATES. Aug. 17, 1962 [Aug. 30, 1961], No. 31710/62. Heading H1D. An electrical sputter-ion pump apparatus comprises a cathode body of active metal in which hydrogen is soluble, e.g. titanium or zirconium, the body having a surface broken by a plurality of pores large enough to allow the free diffusion of hydrogen molecules thereinto and having a smallest dimension less than 0À2 millimeters. The cathode body may be used in a spatter ion pump of the type described in Specifications 883,189 and 883,190. It is stated that hydrogen molecules entrapped within the body experiences a large number of collisions within the body, and the chance of absorption of the hydrogen by the body is greatly increased. The cathode may be powdered metal, or the pores formed by mechanical deformation. The device may be used as a vacuum gauge.
Patent GB-1107536-A (GB)
Title: Foamable compositions
IPC: C08J9/14
Filed: 1965-07-26
Abstract: A foamable composition comprises at least one polymerizable compound containing dihydropyranyl groups linked by ester groups, at least one polymerizable compound which is the aldol condensation product of a dihydropyranaldehyde, a volatile foaming agent and a catalyst. One or more substances reactive with or copolymerizable with the dihydropyranyl derivatives may also be present.  Preferred dihydropyranyl derivatives are 3,4-dihydro-2H-pyran - 2 - methyl 3,4 - dihydro - 2H - pyran-2-carboxylate, and <FORM:1107536/C3/1> and the trimeric aldol condensation products of 2 - formyl - 3,4 - dihydro - 2H - pyran, e.g. <FORM:1107536/C3/2> Exemplified catalysts are BF3, used as the etherate or dihydrate, a mixture of fluoboric acid with a little fluosilicic acid, 1-toluene sulphonic acid and dibutyltindilaurate, many others being specified.  The preferred foaming agent is CFCl3.  Included in various examples as substances reactive with or copolymerizable with the dihydropyranyl derivatives, and which are said to add resilience to the resulting foams, are diphenylmethane - 4,41 - diisocyanate, diethylene glycol, diglyceryltetrachlorophthalate, styrene, diallyl and dimethyl phthalates, pentachlorophenol, 2,2 - di - p - hydroxyphenyl-propane or a low molecular weight condensate of this with epichlorhydrin, polypropylene glycols, various polyether alcohols of molecular weight 350-2800, polyproxylated sugars, castor oil, a p-t-butylphenol formaldehyde resin and a methylated melamine resin.  Chlorendic anhydride and tris (2,3-dibromopropyl) phosphate may serve this purpose and also act as flame retardants.  A surface active agent, e.g. a siloxane oxyalkylene copolymer is preferably included in the foaming composition.
Patent GB-846262-A (GB)
Title: Method of improving biscuit-making properties of flour
IPC: A21D8/04
Filed: 1955-11-07
Abstract: In order to render flour more suitable for biscuit making, the proteins of the flour are modified by incorporation into the flour of an extracellular enzyme from Bacillus subtilis or cysteine, cystine, glutathione or a salt of any of these three, such incorporation being effected, is desired, with the aid of a carrying substance, e.g. starch, and the modification being to the extent that an unyeasted dough of the flour has an extensibility of at least 18 and a spring of not more than 330 determined as described in Food Trade Review, 1954, No. 11, page 15.
Patent GB-851233-A (GB)
Title: Improvements in or relating to insulated current carrying members
Inventor: TAIT THOMAS JOHN
IPC: H01F41/12
Filed: 1957-10-11
Abstract: 851,233. Insulating conductors. BRENTFORD TRANSFORMERS Ltd. Sept. 26, 1958 [Oct. 11, 19S7], No. 31837/57. Class 36 [Also in Group XXXII] Insulation is applied to a conductor 6 by feeding a length of tubular braided insulating material, such as braided glass fibre, on to a hollow mandrel 1 and passing the conductor through the mandrel so as to take the insulating material with it. The mandrel may be slotted to facilitate removal from the conductor and several mandrels may be used to apply insulation to a long conductor.
Patent GB-410173-A (GB)
Title: Improvements in leather manufacturing machines
IPC: C14B1/10
Filed: 1932-11-11
Abstract: 410,173. Leather-treating machines. WRIGHT, P. L. W., 27, Bass Street, Derby. Nov. 11, 1932, Nos. 31869/32 and 26497/33. [Class 76.] A machine for unhairing, fleshing, or scudding hides and skins in one operation comprises the usual rotary tool 1, a conveyer belt 6 and a spring-loaded grip roller 2. A roll 3 over which the belt passes is mounted on arms 7 journalled on a shaft 8 and is held up to working position by weighted arms 10, levers 12 controlled by hand-actuated cams 13 being provided for adjustment purposes. Scrapers 23 are provided to remove from the belt hides which have adhered after passing the tool. A second endless belt 33 may be provided for collecting hair when the machine is used for unhairing operations. A supply of water from a pipe 45 is provided for use in some operations and this may be automatically turned on or off by means connected with the adjustment of the belt into working position. The tool 1 and rolls 2, 3 are positively driven through any suitable gearing. The machine is adapted to operate on hides &c. without any action on the part of the attendant other than placing the hides on the conveyer.
Patent GB-428543-A (GB)
Title: Improvements in and relating to fastenings for securing wrist straps to watches
IPC: A44C5/16
Filed: 1933-11-15
Abstract: 428,543. Securing wrist straps and watches. JARVIS, S. V., (trading as JARVIS & CO., S. V.), and SILBERSTIN, P., 66, Clerkenwell Road, London. Nov. 15, 1933, No. 31883. [Class 43] A metal strip of semi-tubular cross section is attached to the strap by passing flat tongues B, B<1>, through slits in the outer layer L<1> of leather, and bending them to lie close against the inner surface of this layer, after which the watch is attached to the strap by looping an extension of the outer layer of leather through the loops on the watch, passing the tongues through further slits C, C<1> in this extension, bending the tongues down, and clinching down over the whole, the ends A, A<1> of the metal strip. The straps may be ornamental and correspond in colour to the watch case.