baber/WOPTO huggingface dataset:
Patent GB-177533-A (GB)
Title: Cathode ray tube for the recording of electric frequencies free from inertia
IPC: H01J33/04
Filed: 1922-03-23
Abstract: 177,533. Engl, J., Vogt, H., and Massolle, J. March 24, 1921, [Convention date]. Vacuum tubes.-In a discharge device for recording alternating currents, for instance those produced by sound waves, cathode rays, controlled electrically or electromagnetically, act photographically on a record. As shown, a highly exhausted bulb g, having an incandescent filament cathode k and a control electrode h, is closed by a metal plate a, acting as the anode, and formed with a slit s, covered by thin aluminium or other foil, through which cathode rays pass to affect a moving film f. The potential between the electrode h and the cathode is varied by alternating currents produced by sound waves, so as to vary the intensity of the rays passing through the slit. The frequency of the potential applied between the anode and cathode is preferably above the range of hearing. The electrode h may be replaced by one or more coils carrying the alternating currents superimposed on a constant current, so as to vary the discharge electromagnetically, or the potential between the anode and cathode may be varied in accordance with the sound waves.
Patent GB-307939-A (GB)
Title: Improvements in or relating to the manufacture of ammoniacal copper cellulose solutions
IPC: C08B1/00
Filed: 1929-03-15
Abstract: 307,939. Hess, K., and Trogus, C. March 16, 1928, [Convention date]. Addition to 301,752. Ammonical-copper cellulose solutions.-In preparing ammonical-copper cellulose solutions from the products prepared by the pretreatment process of the parent Specification, excess of free caustic alkali over the amount required to produce a highly concentrated spinning solution containing the equivalent per cent of caustic soda is removed by adding during the dissolving of the copper alkali cellulose, the requisite quantity of a. suitable salt or acid, for example, copper sulphate ammonium chloride or sulphate, or sulphuric, hydrochloric or carbonic acids. In an example, wood pulp is converted into copper alkali cellulose as described in the parent Specification and, after pressing, is dissolved in a solution comprising ammonia, water, copper stdphate, and ammonium sulphate. The Specification as open to inspection under Sect. 91 (3) (a) refers also to the removal of the excess alkali by uniformly wetting the pressed celluose product with water and then pressing heavily. This subject-matter does not appear in the Specification as accepted.
Patent GB-653851-A (GB)
Title: Improvements in links suitable for use in a flexible band
IPC: A44C5/10
Filed: 1948-03-23
Abstract: 653,851. Making bracelets. RITTER, S., and MAUCH, W. March 23, 1948, No. 8545. Convention date, March 31, 1947. [Class., 83 (ii)] [Also in Group VII]  Links for forming a flexible band, e.g. a watch strap, of the basket - weave design are bent up from sheet metal. Each primary link of a band is formed from a blank 13 and comprises end bars 17, 18 which have flanges 25, 26 and are held apart by perpendicular bars 19, . 21 connected by inclined cross-members 22; a projection 23 extends from each end of the cross-members and a longer projection from each end of the bars 17, 18, these projections 23, 24 being bent round to encircle and thus form sleeves 20 for hinge-pins 15, 16; the flanges 25, 26 are then bent over to prevent endwise movement of the pins. Each secondary link, formed from a blank 14, comprises cross-members 27, which are held apart by a perpendicular bar 26<SP>1</SP> and are inclined in a direction opposite to the members 22 of the blank 13. The crossmembers 27 have at each end extensions 28, 29 which are positioned between the extensions 23, 24 forming the sleeves 20 of the primary link, and are themselves bent round the pins 15, 16 to form sleeves 30 for the latter.
Patent GB-240502-A (GB)
Title: Improvements in and connected with the fractionation of hydrocarbon oils and like liquids
IPC: C10G7/00
Filed: 1924-04-04
Abstract: 240,502. Crozier, R. H. April 4, 1924. Rectifiers. - Vapours of hydrocarbon oils or other liquids are fractionally condensed by passage in succession up columns A containing coils B through which steam or other heating agent is passed and down columns C containing coils D through which water or other cooling fluid is passed. The condensates from the columns are collected in vessels E which may be discharged by cocks e or may be arranged so that the condensates pass through them in series to a vessel 1 into which the vapour supply pipe 2 dips. Baffles F cause the vapours to pass through the columns and baffles G having serrated edges dipping just below the surfaca of the liquid cause the vapours to pass through the liquid on entering each section. Vapours pass round the lowest baffle F by a by-pass K. In distilling oil from shale &c. as described in Specifioation 212,770, or in distilling oil by passage through a series of stills, each vapour pipe leads into a separate series of columns A, B. The condensate from the vessel 1 of each series is lead into the vessel 1 of the next hotter series and the cool condensarbe from the end vessel L of each series is lead to the vessel 1 of the next cooler series. Steam may be passed into any of the collecting vessels. The vessels 1 may be heated.
Patent GB-395458-A (GB)
Title: Improvements in the production of denicotinized tobacco
IPC: G05G15/04
Filed: 1932-03-23
Abstract: Denicotining is effected by moistening the leaves with pure water, slightly alkaline water or a virulent alkaline liquor containing tobacco bacteria, permitting free or copious access of air while fermentation is effected, and removing the excess of alkalinity produced by the addition of an organic acid.  A cloth soaked in acetic acid may be laid over the leaves, or the acid may be applied by sprinkling.  Volatile aromatic bases removed by the air current are collected and returned to the tobacco leaves. Specification 364,464 is referred to.  According to the Specification as open to inspection under Sect. 91, the leaves may be leached out and the extract fermented.  This subject-matter does not appear in the Specification as accepted.
Patent GB-162681-A (GB)
Title: Improvements in and relating to manifolding, duplicating and the like
IPC: G03F7/12
Filed: 1918-05-24
Abstract: 162,681. Gestetner, D. May 24, 1918. Stencils.-A stencil for use in duplicating is produced directly on to a sheet of Yoshino or like paper by a photographic process. A sheet of Yoshino or like paper coated with gelatine and sensitized with a bichromate is treated with a solution acting as a size or strengthening-agent, and is exposed to the action of light under the matter to be reproduced, or a diapositive or negative thereof, or in any other suitable way, and is then developed. The strengthening-agent must be insoluble in water if the developing-fluid is water or an aqueous composition, and may be soluble in water if other liquids are to be used. Water-insoluble agents stated to be suitable are solutions of shellac, damar, mastic, animi, copal, amber, colophony, india-rubber, gutta-percha, a mixture of india-rubber, turpentine and shellac, synthetic resins or resin-like compositions, pyroscylin or celuloid, or, in certain cases, albumen or phenol-formaldehyde condensation products, which may be rendered insoluble, may be employed; of water-soluble agents gum arabic, casein, albumen, starch, or starch esters may be used. Optionally the Yoshino paper may be mounted on a carrier such as stronger paper, glazed paper, or a card, by means of an adhesive insoluble in cold but soluble in hot water, to facilitate the treatment of the Yoshino paper with the colloid, or in the development of the exposed paper. The sheet may be further strengthened by folding down its edges or cementing thereto strips of fabric or paper, or coating the edges more heavily with the strengthening- agent. The stencil may be developed by placing it between two porous sheets, e.g. fine muslin, lawn, or wire gauze mounted on frames, and then pouring the developer first on one side and then on the other. Should the porosity of the Yoshino paper be affected, the strengthening- agent may be removed by a suitable solution. The Provisional Specification states that sensitizers such as those employed in the ferro-gallic and Pellet photographic processes, which render the colloid insoluble and, under the action of light undergo a chemical change and again render the colloid soluble, may be used; a halftone negative may be employed; the copies may be produced by applying the ink to one side of the stencil while the stencil is in contact with the impression-receiving surface; or the stencil may be secured to a supporting surface and a layer of ink interposed between them; and a quick-drying varnish ink may be employed to produce effects such as are obtained in printing from engraved plates.
Patent GB-682105-A (GB)
Title: Method of making surface-type and point-type rectifiers and crystal-amplifier layers from semiconductor material
IPC: H01L31/18
Filed: 1950-04-05
Abstract: An electric semiconducting device for use as a rectifier or a crystal triode is prepared by depositing on a base plate a mixture of semiconducting material and a small percentage of donor or acceptor <PICT:0682105/III/1> <PICT:0682105/III/2> impurity material, by reducing a volatile compound of semiconducting and impurity material with a volatile or gaseous reducing agent in the presence of the base plate.  In one example, Fig. 1, hydrogen is passed at a controlled rate through silicon tetrachloride in vessel 3 at temperature T1, and at a separately controlled rate through a mixture of silicon tetrachloride and boron trichloride in vessel 4 at temperature T2. The outputs are combined and passed through an oven 8 where the reaction product is deposited on a base plate 9 of carbon, or a high melting point conducting material which does not alloy with silicon, or aluminium oxide or a ceramic material. The proportion of boron which acts as an acceptor impurity may thus be controlled to provide layers of desired characteristics in selected positions in the resulting silicon element.  A small percentage of germanium or tin tetrachloride may be added to vessel 3.  Alternatively, germanium may be substituted for silicon in the process, and arsenic hydride or antimony hydride may replace boron to provide a donor impurity.  Zinc may alternatively be used as a reducing agent, and since this material has a high vapour pressure, reduction may be effected without using a continuous flow of gas through the apparatus.  In Fig. 3, a vapour mixture of silicon tetrachloride and boron trichloride is supplied from a tube 30 to a tube 25 which is situated in an outer tube 28.  The reducing agent consists of aluminium vapour supplied from a chamber 29 at the end of tube 25. Tube 28 is connected to a pump for removing unwanted gases. Reaction takes place in a central compartment of tube 25 where base plate 9 is provided. Partitions may be used to direct the vapour flow.
Patent GB-198833-A (GB)
Title: Improvements in valve mechanism for internal combustion engines
IPC: F01L7/04
Filed: 1922-03-25
Abstract: 198,833. Enderby, G. H. March 25, 1922. Valves; valve-gear.-Four-stroke engines of the type having opposed pistons working in the same cylinder are provided with an internal rotary sleeve valve having ports midway along the cylinder for controlling inlet and exhaust, and also the ignition ports where such are used. The sleeve is driven by means of a worm-wheel, which may be secured to the sleeve by shear pins to prevent damage in the event of seizing of the sleeve. According to the Provisional Specification, the invention may be applied to two-stroke engines.
Patent GB-594398-A (GB)
Title: Plastic composition
IPC: A61K6/90
Filed: 1944-05-09
Abstract: A solid thermoplastic synthetic resin and a plasticiser therefor are dissolved in a molten, normally solid, fatty acid or wax, the amount of acid or wax exceeding the amount of resin and the cooled composition aerated by kneading or agitation.  Resins specified are polyvinyl formal, acetal and butyral, polyacrylates, polystyrene, polymethyl methacrylate, vinyl acetate/chloride copolymer, polyisobutylene and polyvinyl ethyl ether.  As plasticisers, mineral oil, dibutyl, dimethyl and diamyl phthalates, triacetin, tripropionin and benzyl benzoate are specified.  Fatty acids and waxes specified are stearic, acid, carnauba, bees, montan, japan and paraffin waxes. Anodynes and fillers such as eugenol, guaicol, calcium and barium sulphates and diatomaceous earth may be added.  The kneading may be done under water.  Such aerated compositions are used for dental impressions.
Patent GB-541248-A (GB)
Title: Arrangements for transmitting power to intermediate repeater stations in carrier wave signalling systems
IPC: H04B3/44
Filed: 1940-05-17
Abstract: 541,248. Repeating systems. STANDARD TELEPHONES & CABLES, Ltd., and RALPH, F. May 17, 1940, No. 8842. Drawings to Specification. [Class 40 (iv)] In a system in which unattended carriercurrent repeaters are fed with power from a terminal or attended station, the supply circuit includes a voltage-regulator, preferably of the saturated choke type, at each intermediate station. The necessity for transformers to step the voltage up at each station is thus avoided. The supply circuit may be the two conductors of a co-axial signal line or the two central conductors of a pair of such lines.
Patent GB-370171-A (GB)
Title: Improvements in or relating to electric lamp holder adaptors
IPC: H01R33/46
Filed: 1931-03-23
Abstract: 370,171. Two-part couplings. BELLING & LEE, Ltd. and LEE, E. M., Queensway Works, Ponders End, Middlesex. March 23, 1931, No. 8860. [Class 38 (i).] An adapter having a bayonet plug portion 16 to fit a lamp holder, and a cap portion 10 to enclose a terminal fitting 27, has the fitting 27, a projection 18 on the plug 16, and the cap 10 all of corresponding cross section such that relative rotation is prevented. They may be of oblong section as shown, and the fitting 27 may be flanged to fit with the flange 17 on the plug 16 between the cap 10 and a screw ring 30, or it may be held in place by the pressure of the cap 10 on a projection 28 on the fitting that forms with the cap a cord grip 11. The ring 30 may be reversed to screw on to the plug 16. Fuses 23, 24 may be interposed between the terminals 25, 26 and the contacts 19, 20. The plug 16 and fitting 27 are locked against relative rotation by pins, dowels, &c.
Patent GB-269164-A (GB)
Title: An improved process for the precipitation of heavy metals from ammoniacal solutions
IPC: C01G3/14
Filed: 1927-03-31
Abstract: 269,164. I. G. Farbenindustrie Akt.- Ges. April 9, 1926, [Convention date]. Right to Patent relinquished. Precipitating.-Metals such as copper, silver, nickel, cobalt, or zinc, are precipitated from ammoniacal solution by treating the solutions with reducing gases such as carbon monoxide, hydrogen, or water gas, under suitable conditions of temperature and pressure, the nature of the precipitate depending on the temperature and pressure. A number of metals contained in a solution may be precipitated successively by varying the temperature and pressure. The process may be. carried out in a vessel having a lining such as lead capable of resisting the.action. of the solution and the gas.
Patent GB-549768-A (GB)
Title: Improvements in or relating to sparking plugs and a method of making the same
IPC: H01T13/46
Filed: 1941-05-26
Abstract: 549,768. Sparking-plugs. BENDIX AVIATION CORPORATION and CLEVELAND, F. J. May 26, 1941, No. 8952/42. Divided out of 549,732, under which a Specification was laid open to inspection under Sect. 91 of the Acts, Jan. 10, 1942. [Class 7(iv)] [Also in Group XXII] The earthed electrode comprises a metallic element 50 secured in the plug body 47 and having one or more inwardly and downwardly projecting prongs 51, each provided with a pin-like member 52 extending into spark-gap relation with the centre electrode 41. The element 50 may be of ferrous alloy and the pins 52 of platinum, and the elctrode 41 may have a platinum tip 42 fused to a body portion 41 of ferrous alloy, mounted in a moulded ceramic insulator 43 in the manner described in Specification 549,732. A collar 44 of metal such as stainless steel or copper may be shrunk or spray-coated on the insulator, for example by the process referred to in Specification 549,732 the lower end of the collar engaging a gasket 45 on a flange 46 of the body, and a flange 48 being engaged by a nut 49 provided with a radio-shielding barrel.
Patent GB-1135915-A (GB)
Title: A method for the preparation of primary amines
Inventor: ZAVELSKY DAVID ZALMANOVICH
Filed: 1967-02-24
Abstract: 1,135,915. Primary amines. GOSUDARSTVENNY ORDENA TRUDOVOGO KRASNOGO ZNAMENI INSTITUT PRIKLADNOI KHIMII. 24 Feb., 1967, No. 8956/67. Heading C2C. A method of producing primary amines comprises the catalytic hydroammonolysis of carboxylic acids, e.g. fatty acids and naphthenic acids, while heating at 270-370 C. under a pressure of 100-300 atm., where the catalyst comprises a mixture of sulphides of the metals of Groups VI and VII of the Periodic Table, e.g. nickel, tungsten, cobalt and molybdenum and alumina or silica may be used as a carrier. Some secondary amines may also be formed.
Patent GB-668019-A (GB)
Title: Improvements in or relating to refrigerator evaporators
IPC: F25B39/02
Filed: 1950-04-12
Abstract: 668,019. Refrigerating. NIELSEN, N. C. April 12, 1950, No. 9032/50. Class 29 The shelves 9, 10 of an evaporator unit for a continuous cycle absorption refrigerating system contact the evaporator pipes 2, 4 and are attached to the vertical side walls 6, 7 of the casing by upturned edge flanges 11, 13, the lower ends 15, 16 of the side walls partially embracing the lower pipe 4. In a modification, Fig. 2 (not shown), the casing encloses the lower coil only and the upper coil is fitted with fins. The front of the casing may be partiallv closed by down-turned front edges of the shelves
Patent GB-962692-A (GB)
Title: Vehicle adapted to cross rough terrain
IPC: B62D49/06
Filed: 1962-03-09
Abstract: 962,692. Vehicle frames. FABRIQUE NATIONALE D'ARMES DE GUERRE S.A. March 9, 1962 [March 10, 1961], No. 9070/62. Heading B7D. A lightweight vehicle for military purposes capable of being dropped by parachute, comprises a tubular frame having a transverse front frame member 1, 2, 3, 4, 5 comprising cross-bracing 12, 13, 15 and 16 and rearwardly extending stirrups 14, 17 and 18, the lower horizontal members 4 and 5. being of unequal length and terminating in flanges 6 and 7 which co-operate with flanges 27 and 28, of a shaft 24 upon which a single front wheel is pivotally and rotatably mounted. Longitudinal frame members 21 and 22 are connected to the front frame at 30 and 31 and reinforcing members 37, 39, 38 and 40 are fitted, a floor plate 41 being carried by the members 38, 40, 5. The pivotal mounting for the wheel divides the shaft 24 into unequal lengths to facilitate assembly and dismantling. The vehicle control pedals and steering apparatus are carried by attachments secured to the transverse front frame.
Patent GB-557961-A (GB)
Title: Improvements in apparatus for heating and ventilating the air in the interior of mechanically propelled vehicles
IPC: B60H1/18
Filed: 1942-12-09
Abstract: 557,961. Valves. STAFFORD, R. W., and DUTTON, R. H. Dec. 9, 1942, No. 9103/43. [Class 135] [Also in Groups XIII, X and XXXVII] The exhaust pipe 2 of the engine of a motor vehicle is enlarged to enclose a pipe coil 4, the front end of which is connected to an air impeller 6 and to a valve port 10a, the rear end being connected to a pipe 9 discharging to the air and to a valve port 10b. The valve casing 10 leads to an air distributer 11 in the vehicle. A valve member 12 is provided with channels 12a, 12b extending transversely through it and so spaced that incoming cold air may pass wholly to the distributer 11 without heating, or in part direct and in part through the heater 4 to the distributer, or wholly through the heater. The valve 12 is actuated by a lever 14 through links 16, 17, 18 and the lever carries also a shoe moving over a cam surface whereby in its extreme positions a cable 21 is actuated to open the valve 8 and allow air to pass through the heater direct to the atmosphere, to prevent overheating.
Patent GB-198151-A (GB)
Title: Improvements in tyre covers for motor cars, cycles and the like vehicles
IPC: B60C9/16
Filed: 1922-03-30
Abstract: 198,151. Magarinos, J. M., and Orive, F. March 30, 1922. Jackets and covers. - A reinforced tyre cover comprises a fabric foundation C, a canvas strip B with overflapping metal plates A arranged in spaced series, a layer of rubber, a second canvas strip F with metal plates G arranged to break joint with those on the strip B, a rubber layer, a strip of rubbered canvas I, and an outer rubbertread J.
Patent GB-762014-A (GB)
Title: Improvements relating to electrical generating equipment
Inventor: MILNE JOHN CHARLES
IPC: H02J9/06
Filed: 1954-03-29
Abstract: 762,014. Standby generating plant. ELECTRIC CONSTRUCTION CO., Ltd. May 16, 1955 [March 29, 1954], No. 9145/54. Drawings to Specification. Class 38 (4). Generating equipment for maintaining continuity of supply to an A.C. load upon failure of a main source is arranged so that under normal conditions the main source energizes, through a contactor, both the load and a main dynamo-electric machine which runs as a motor and drives an auxiliary dynamo-electric machine as a generator, whilst on failure of the main source the contactor automatically opens to isolate the main source from the main machine and from the load, the latter then being supplied by the main machine which runs as generator driven, initially, by the auxiliary machine motoring from a battery and subsequently by a standby engine which is automatically clutched to, and started by, the auxiliary machine. The equipment further comprises voltage sensitive apparatus connected across the main source and capable of detecting subsequent restoration of that source, the apparatus then, after synchronization, if necessary, of the main machine and main source, bringing about reclosure of the contactor and the declutching and stopping of the engine. Under normal supply conditions the auxiliary machine charges the battery. The main machine may be a motor-generator, the load at all times being supplied through the generator which, under normal supply conditions, is driven by the motor (connected to the main source through the contactor) and, under conditions of failure of the main source, initially by the auxiliary machine and then by the engine. Alternatively, the main machine may be a single alternating current machine normally motoring on the main source and provided in its circuit with apparatus responsive to reverse power flow and operative to cause opening of the contactor upon such reverse flow. Specifications 673,089, 689,920, 692,939, 692,989 and 739,000 are referred to.
Patent GB-308604-A (GB)
Title: Process and apparatus for purifying gasolene
IPC: C10G25/00
Filed: 1929-03-21
Abstract: 308,604. Knowling, W. M., and Kostevitch, M. M. March 23, 1928, [Convention date]. Void (Published under Sect. 91 of the Acts]. Mineral oils; purifying. - Gasolene is desulphurized by treatment cold with glaucosil. Treatment with a mixture of activated silica gel and activated charcoal as described in Specification 287,141 may follow. The adsorbents may be metallised, e.g by copper, nickel, or platinum. For example, gasolene is passed into a chamber 3 in which sand, metal particles, pitch, water, and other impurities settle and then pass to a sump 9. The gasolene passes through a porous plate 7, a removable box 4 containing glaucosil G, a porous plate 8, silica, gel and d charcoal C, and a porous plate 12 to a carburettor. The plates 7, 8, 12 are made of crystalline silica, opaque or transparent crystalline silica gel, agglomerated glass, or refractory earth Norton " R.A.98."