baber/WOPTO huggingface dataset:
Patent GB-149702-A (GB)
Title: Improvements in ionic relays
IPC: H03C1/16
Filed: 1918-06-21
Abstract: 149,702. Eccles, W. H., and Jordan, F. W. June 21, 1918. Thermionic relays.-A thermionic receiver normally employed for magnifying high-frequency wireless oscillations is adapted for amplifying oscillations or fluctuations of lower or audible frequency. The low-frequency vibrations to be amplified are impressed upon a source of highfrequency carrier oscillations, and the modulated high-frequency oscillations thus obtained are passed through the amplifier which magnifies them. The amplified low-frequency modulations may be detected by any known rectifying-device. The method of impressing the low-frequency vibrations upon the high-frequency oscillations may be accomplished in any known manner. Fig. 1 shows a circuit in which the valve 1 generates high-frequency carrier oscillations in the closed circuit 2. Lower-frequency pulsations are imposed on the anode circuit by means of the transformer 3, and the modulated high-frequency oscillations are led from the terminals A1, A2, to an amplifier appropriate to the high-frequency in use. In this manner the resonating properties of the amplifying-circuit are utilized to increase magnification, and valve noises are reduced. In the modification shown in Fig. 2, carrier oscillations from an external source are imposed on the anode circuit of the valve, while low-frequency pulsations are imposed upon the grid circuit. According to another modification, both the carrier oscillations and the low-frequency pulsations are imposed upon the grid circuit. In a still further modification the carrier oscillations are imposed on the grid circuit, and the low-frequency pulsations are imposed on the anode circuit. In every arrangement described, the modulated carrier oscillations are taken from the anode circuit.
Patent GB-933202-A (GB)
Title: Work-supporting device for a turning lathe
Inventor: TAYLOR STANLEY
IPC: B23B5/28
Filed: 1961-03-22
Abstract: 933,202. Turning railway wheel treads. SCOTTISH MACHINE TOOL CORPORATION Ltd. March 21, 1962 [March 22, 1961], No. 10420/61. Class 83 (3). A support for railway wheels, for use in trimming the treads, comprises rollers 8, 9, Fig. 3, carried at the ends of sliding members 11, 12, respectively. The other ends of these members bear on a rocking lever 6 with a spindle 7 which is mounted in the end of a lever 5. The other end of this lever is keyed to a shaft 4 rotated by an hydraulic piston and cylinder device to maintain the rollers in engagement with the wheel tread. The roller 8 is stepped abruptly at 18, Fig. 4, the amount of the usual " cut " to be taken to trim the wheel tread and thus the rollers support the wheel across the whole tread as the latter is cut. The wheels 10 may be machined while " in situ " in vehicle tracks 19, 20 being provided with a gap for the support rollers adjacent a lathe. The wheels are lifted by the rollers to engage the lathe centres and then supported during turning.
Patent GB-1299051-A (GB)
Title: Electron exchangers
IPC: B01J47/00
Filed: 1971-04-21
Abstract: 1299051 Electron exchange resins MERCK PATENT GmbH 21 April 1971 [19 May 1970] 10490/71 Heading C3P [Also in Division C2] Electron exchangers based on hydrophilized redox polymer and containing pyrazole anthrone groups as electron exchangers may be prepared by polymerizing or copolymerizing N-alkenyl pyrazole anthrone compounds, or by reacting a pyrazole anthrone or salt thereof with a chloromethylated polymer, and hydrophilizing the polymer by introducing sulphonic or carboxylic acid groups. The N-alkenyl pyrazole may be N-vinyl, N-allyl, N-methallyl or N-isopropenyl pyrazole anthrone, which may be copolymerized with styrene, α-methyl styrene, acrylic and methacrylic acid esters, vinyl toluene, vinyl naphthalene, acrylic and methacrylic amides and nitriles; and with crosslinking agents, e.g. polyalkenyl ethers of polyols, α,#-dienes, polyallyl silanes, diallyl and divinyl sulphones, sulphides and ketones, alkylene bisacrylamides, glycol diacrylates, allyl acrylates and divinyl benzene; preferably by suspension polymerization in aqueous sodium chloride solution with liquid hydrocarbons and butyl acetate as pore formers, and polyvinyl alcohol or polyvinyl pyrrolidone as protective colloids. Alternatively pyrazole anthrones may be reacted with chloromethylated polymers or chlorethyl acrylate polymers cross-linked with the above cross-linking agents, in the presence of a base. The polymers may be hydrophilized by reacting with chlorosulphonie acid, sulphuric acid, sulphur trioxide or propane sultone; or by reaction with chloro- or bromoacetic acid esters in the presence of a Friedel-Crafts catalyst followed by saponification. In Examples (1, 4 and 5) N-allyl pyrazole anthrone, (3) N-vinyl pyrazole anthrone and (6) N-methallyl pyrazole anthrone are copolymerized with styrene and divinyl benzene in aqueous sodium chloride solution in the presence of polyvinyl pyrrolidone, butyl acetate or toluene, naphtha benzine and azodiisobutyronitrile; and (2) pyrazole anthrone is reacted with sodium hydride and cross-linked chloromethylated macroporouspolystyrene; the products being sulphonated by reaction with chlorosulphonic acid.
Patent GB-789218-A (GB)
Title: Improvements in and relating to electrical position control means
Inventor: MONK MURRAY
IPC: B66B1/40
Filed: 1954-04-09
Abstract: 789,218. Electric correspondence control systems. BRITISH THOMSON-HOUSTON CO., Ltd. April 7, 1955 [April 9, 1954], No. 10536/54. Class 40 (1). Apparatus for producing a signal indicative of the displacement between two relatively movable members comprises two similar transformers 1, 2 (Fig. 1), mounted on the one member, with their primary windings in series and their secondary windings in series opposition, so that when armatures 5, 6 attached to the second member are symmetrically arranged with respect to the cores 3, 4 of the transformers 1, 2, the output signal from the opposed secondary windings is zero, but when the second member is displaced an output signal is obtained whose magnitude and phase are, within limits of movement, indicative of the magnitude and sense of the relative displacement between the two members. The cores 3, 4 may be U-shaped, and only one armature may be used.
Patent GB-456500-A (GB)
Title: Improvements in and relating to the treatment of ores containing aluminium and/or copper
IPC: C22B3/00
Filed: 1936-04-09
Abstract: Aluminium ores or the red sludge obtained in the basic decomposition of bauxite are heated with ammonium sulphate, the resulting mixture of sulphates is dissolved in hot acidulated water with the introduction of air to convert iron present to the ferric state, ammonium sulphate is added and the aluminium present crystallized out as ammonia alum, the iron is then reduced to the ferrous state and crystallized out as ferrous ammonium sulphate, and the residual solution treated with ammonia to precipitate remaining metals as oxides which are further treated for their separation as described below.  Copper ores may be treated similarly except that from the solution of mixed sulphates copper sulphate is crystallized out as such.  Ammonia evolved in the first step of the process may be converted to ammonium carbonate and used to obtain basic aluminium carbonate from the ammonia alum with recovery of ammonium sulphate for re-use, and the basic carbonate be converted to hydroxide or oxide.  The ferrous ammonium sulphate may be treated with dilute ammonia to precipitate aluminium hydroxide and any impurities and then with hot air, ammonia, and flue gas to obtain ammonium sulphate for re-use and basic ferric carbonate which may be calcined to produce ferric oxide.  The oxides precipitated by ammonia after removal of ferrous ammonium sulphate are first extracted with carbonated water to remove iron, then with ammonia to remove copper, nickel, chromium, vanadium and cobalt, then with ammonium carbonate to remove zirconium, thorium, and yttrium, then with aluminium sulphate to remove aluminium and beryllium, and finally with sulphurous acid to remove metals of the cerium group.  The ammonia extract is boiled to precipitate the hydroxides of chromium, nickel and cobalt, acidulated with sulphuric acid and treated with hydrogen sulphide to precipitate copper, and the filtrate evaporated to dryness and calcined to obtain vanadium oxide.  The ammonium carbonate extract is boiled to precipitate the hydroxides of zirconium, thorium, and yttrium, and the aluminium sulphate extract boiled to separate basic aluminium sulphate, re-used repeatedly until the beryllium content is sufficiently high and then treated with ammonium sulphate to obtain ammonia alum, with excess of ammonium carbonate solution to precipitate basic aluminium carbonate, and finally boiled to precipitate beryllium carbonate which is calcined to oxide.  The sulphurous acid extract is boiled to precipitate sulphites, which are calcined to yield the oxides of metals of the cerium group.
Patent GB-369762-A (GB)
Title: Improvements relating to transfers
IPC: C09D11/02
Filed: 1931-04-09
Abstract: 369,762. Transfers; transferring designs; ink. SOC. ITAL. TRANSFERS ALBINI S.I.T.A. and STEFFENINI, A., 2, Via Monte Napoleone, Milan, Italy. April 9, 1931, No. 10545. [Class 100 (ii).] Transfers for applying designs to porous surfaces such as wood, leather, fabrics of wool, silk, or cotton, sacks, &c. are printed with an ink obtained by mixing with any suitable lithographic ink a mass prepared by melting together 100 parts of tallow and about 100 parts of colophony. The density of the mass may be reduced if desired by the addition of small quantities of wax and glucose. A quantity of finely ground colophony may be added to the ink or the transfers may be dusted with colophony. The design is transferred to the article by passing the transfer and article together between a pair of rollers one of which is driven and the other heated and freely mounted.
Patent GB-308243-A (GB)
Title: Process of producing ammonium sulphate by the treatment with gypsum of an ammoniacalsolution used for the scrubbing of gases
IPC: C01C1/244
Filed: 1928-04-10
Abstract: 308,243. Union Chimique Belge Soc. Anon. March 20, 1928, [Convention date]. Addition to 307,037. Materials for purifying; purifier waste, revivefying.-In the process described in the. parent Specification for separating acid impurities from distillation gases, the treatment of the washing liquor with ammonia to precipitate ammonium sulphate and the absorption by the washing liquor of the acid impurities in presence of ammonia are effected separately. Washing liquor containing ammonium sulphate passes from a cooler 30 down a scrubbing tower 2 provided with a cooling-coil. 31. The gases to be purified pass up the tower from a pipe 1 together with ammonia from a pipe 5. The washing liquor is treated with calcium sulphate in a vessel 7 and passes through a filter 8 and a heat exchanger 9 to a distilling column 10 where volatile ammonium salts are separated. The residual liquor passes through an evaporator 19, and after being cooled in the heat-exchanger 9 is passed into a column 22 in which it is treated with vapours of ammonia and ammonium carbonate. Crystals of ammonium sulphate separate. The mother liquor is passed through a heat-exchanger 26, a heated column 27 in which ammonia for return to the column 22 is separated, and through the heat-exchanger 26 and cooler 30 back to the scrubbing column 2.
Patent GB-611935-A (GB)
Title: Improvements in and relating to portable cash boxes and similar receptacles
IPC: A45C13/24
Filed: 1946-04-05
Abstract: 611,935. Burglar and like alarms. BERG, R. E. April 5, 1946, No. 10562. [Class 118 (i)] A portable cash-box or like receptacle having an alarm system of the type wherein, on the box being moved, a pin projecting through an aperture in the base is adapted to close an alarm circuit is characterised by the provision of a pair of external sockets or the like to which an additional remote alarm may be connected. When a box 11 (Fig. 2) is lifted or moved, a pin 15 (Figs. 2, 3 and 4) projecting through an aperture 16 permits a spring 13 to make contact with a second spring 14 to close the circuit of a bell 10, in parallel with which are two external sockets 17. The spring 13 further depresses the second spring 14 until an extension 25 of the latter latches beneath a tooth of a third contact spring 20 wired in parallel with spring contact 13, in order that the alarm may not be stopped if the spring 13 is raised, e.g. by inserting a pencil through the aperture 16. This feature of mechanically locking the second spring forms the subjectmatter of Specification 612,004. In order to stop the alarm or set it in a " safe " condition, a crank, 30 is turned, raising spring 13 and forcing spring 20 out of engagement with spring 14. Specification 24677/10, [Class 118 (i)], also is referred to.
Patent GB-417534-A (GB)
Title: Improvements relating to methods of and apparatus for drying and heating materials
IPC: F26B3/20
Filed: 1933-04-08
Abstract: Materials such as cement raw materials are heated and dried on the surfaces of loose bodies arranged in a layer while hot gases are passed through the layer, the material being continuously supplied and removed, but, during at least the greater part of the time in which it is subjected to the action of the gases, the bodies remain relatively stationary, while during the distribution of the material over their surfaces or removal of the material or both, the bodies are caused to move relatively to one another. The bodies may be arranged on a gas-permeable support, and may consist of iron, heat resistant alloys, firebrick or porcelain in various geometrical forms.  The gases are preferably passed downwards through the layer of bodies, and may be passed through the whole or part of the layer. In one form illustrated, a layer of bodies 3 carried by a gas-permeable support 4 fixed to a <PICT:0417534/III/1> vertical rotary shaft 5 is supplied with material by a pipe line 8, and agitated by stirrers 9.  The bodies now coated with material move away from these stirrers, and the material is heated and dried by gases from a rotary kiln 1, which gases pass to a flue 16.  Towards the end of a revolution, stirrers 11 (not shown) similar to the stirrers 9, agitate the bodies again and shake off the heated and dried material, which drops through apertures in a support 4, and is fed by scrapers 12 into a hopper 13, whence it slides past an airtight seal 14 in the form of a bucket wheel, and so to the kiln 1. Rotary constructional parts of the apparatus are protected from the hot gases by casings 17, 18 which may be provided with air or liquid cooling means.  In another form, the layer of bodies may be stationary while the support for the feed pipe and stirrers rotates. Material of larger grain may be simply deposited on top of the loose bodies, which are set into motion to remove the material after drying and heating.
Patent GB-911668-A (GB)
Title: Methods of making semiconductor pn junction devices
IPC: H01L21/00
Filed: 1961-03-23
Abstract: 911,668. Semi-conductor devices. WESTERN ELECTRIC CO. Inc. March 23, 1961 [March 25, 1960], No. 10613/61. Class 37. A PN junction in an N-type silicon body is produced by alloy-diffusion of a layer of aluminium and boron oxide into the surface of the body. In one embodiment phosphorus is diffused into a slice 11 of P-type silicon having 5x10<SP>19</SP> impurity centres per c.c. to produce an N-type layer 12. The layer is then masked and a series of coatings 13 consisting of gold with 1% or less antimony is deposited on the surface. The mask is moved 1 mil and a second series of coatings 14 is produced by co-operation of aluminium and boron oxide sequentially or simultaneously. The aluminium may be in the form of a wire surrounded by a tungsten filament; if desired a further film of aluminium may be deposited on to the boron oxide. The slice is then heated to 700 C. for about one minute, and then abruptly to 1000 C. and down again by sudden cooling, this heating "spike" lasting for about 10 seconds. This process results in ohmic electrodes due to the diffusion of the gold-antimony, and additional thin P-regions with acceptor concentration equal to or exceeding 10<SP>19</SP> per c.c. The slice is then cut to provide a plurality of mesa diffused base transistors with the P-type regions forming high injection efficiency emitters. The invention may also be applied to the production of tunnel diodes. Specifications 809,642 and 911,667 are referred to.
Patent GB-995492-A (GB)
Title: Antimicrobial compositions containing dequalinium salts
IPC: A01N43/42
Filed: 1962-03-20
Abstract: 995,492. Antimicrobial compositions. JOHNSON & JOHNSON. March 20, 1962 [March 20, 1961], No. 10620/62. Headings A5B and A5E. Compositions for combating micro-organisms comprise a mixture of a decamethylene 1,10-bis- 4-amino quinaldinium salt (dequalinium salt) and a cetyl pyridinium salt, the relative proportions by weight of the respective salt being such that, after dilution of said mixture with a pharmaceutically acceptable carrier and, if required, other pharmaceutical, excipients, the resulting product is represented by a point within the area enclosed by curve ABC in the Figure shown. (Although, the Figure relates to mixtures of dequalinium acetate and cetyl pyridinium chloride, it is stated to be also applicable to other dequalinium and cetyl pyridinium salts.) Suitable anions for the dequalinium salts include the halide, methosulphate, nitrate and acetate ions, the acetate and chloride ions being preferred; suitable anions for the cetyl pyridinium salts include the nitrate, sulphate, salicylate, benzoate, acetate and halide ions, the chloride and acetate ions being preferred. The pharmaceutical carrier is generally aqueous but dusting powders may also be used. The compositions may be used in topical antiseptics, gingivial paints, dentifrices, ointments, powders, dental articles such as cotton rolls, pledgets, sponges, cones and points, antiseptic throat lozenges, personal deodorants, vaginal douches and cold sterilizing solutions. Specification 745,956 is referred to.
Patent GB-201142-A (GB)
Title: Pistons for explosion motors
IPC: F02F3/00
Filed: 1923-04-19
Abstract: 201,142. Spring, H. F. A. April 19, 1923. Pistons; pistons, cooling; connecting-rods.- The piston of an internal-combustion engine is formed with an internal heat-radiating mass a, Fig. 2, integral with parallel webs 4, 6. The mass a may terminate in a concave oil-deflector b. The webs 4, carry the gudgeon-pin bosses 9 and a guide-ring 3. The latter is supported also by webs 7 at right-angles to the webs 4. In order to improve the lubrication the head is formed with a bevelled edge 25 and oil grooves. The piston has segmental bearing pieces 12 on the sides which take the connecting-rod thrust. In a piston for a two-stroke engine the heat-radiating mass a, Fig. 5, terminates in an oil-deflector c and is formed integral with parallel webs 26, which are united to the lower edge of the skirt and carry the gudgeon-pin bosses. Other webs are formed at right-angles to the webs 26. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of radial instead of parallel webs and flat oil deflectors. The webs may carry a skirt separated by a gap from the piston head. A gudgeon-pin 15, Fig. 9 (Cancelled) has split ends which are expanded by the coned head 16 and nut 18 of a bolt 17. A cotter pin 20 is passed through the gudgeon-pin boss, the gudgeon-pin and the nut 18. This subject-matter does not appear in the Specification as accepted.
Patent GB-620122-A (GB)
Title: Tooth-brush holder and package comprising said holder and tooth-brush
IPC: B65D75/00
Filed: 1945-04-27
Abstract: 620,122. Toothbrosh holders. CELON CO. April. 27, 1945, No. 10697. Convention date, March 29, 1944. [Class 131] [Also in Groups XVII and XXIII] A toothbrush holder comprises an elongated body having resilient end extensions to hold the brush clampingly between said ends. As shown, the holder, made of aluminium or other metal or plastic, has an elongated body 4 with upturned ends 5 and 6. These end-pieces are provided with protuberances 7 having recesses 8 which receive the ends of the tooth-brush placed therebetween. There may be provided upstanding parts 10 and 11 preferably integral with the body which serve to support the brush. A slotted opening 15 in the body enables the holder to be hung up. To provide a merchandisable package, the assembled holder and brush is enclosed in a shrunken tube of cellulosic material (see Group XVII).
Patent GB-250029-A (GB)
Title: Improvements in and relating to steam generators
IPC: F22B37/22
Filed: 1925-07-29
Abstract: 250,029. Stirling Boiler Co., Ltd., and Noble, E. E. July 29, 1925. Priming, preventing; partitions and baffles in water space.-In a steam and water containing vessel such as a boiler drum B, a baffle A extending the whole length of the vessel is provided with its lower end entering the water, and arranged in relation to the fluid inlets C so as to provide with the adjacent wall and with end plates a confined space open only at the top. Within this apace steam and water separate, water being delivered downwardly to the main body and steam above the water, a deflector D spaced from and overhanging the baffle changing the direction of the steam before delivery to the free space in the vessel.
Patent GB-1396052-A (GB)
Title: Hydraulically operated disc clutches
IPC: B30B15/14
Filed: 1973-03-06
Abstract: 1396052 Friction clutches ZAHNRADFABRIK FRIEDRICHSHAFEN AG 6 March 1973 [15 March 1972] 10762/73 Heading F2C An automatic wear adjuster in an hydraulically operated friction clutch 4 for a press comprises a chamber 12 which traps liquid therein to progressively reduce return movement of a stepped clutch engaging servo-piston 1 as wear occurs. The clutch is engaged against the bias of a return spring 3 by supplying pressure liquid through a control valve 5 to a clutch operating servo-cylinder 7. The pressure supplied to the servo-cylinder 7 additionally actuates a valve 14 which, during clutch engagement, connects the chamber 12 to a reservoir 15 and, during clutch disengagement, isolates the chamber 12 from the reservoir 15. The chamber 12 is additionally connected to an accumulator 9. During clutch engagement the accumulator 9 is emptied and the chamber 12 is maintained full by flow from the reservoir 15. During clutch disengagement liquid from the chamber 12 is discharged into the accumulator 9 until the accumulator piston 10 abuts stops 11 whereupon further return movement of the piston 1 is prevented by the liquid trapped in the chamber 12.