baber/WOPTO huggingface dataset:
Patent GB-448247-A (GB)
Title: Belt drives
IPC: B61D43/00
Filed: 1934-12-03
Abstract: 448,247. Utilizing movements of vehicles. SCHMIDT, E. J., 20, North Wacker Drive, Chicago, U.S.A. Dec. 3, 1934, No. 34734. Convention date, Feb. 21. [Class 103 (iii)] [See also Group XXXV] A dynamo or other apparatus attached to a railway vehicle is driven from the wheels through a belt;drive and a gearbox the input shaft of which is parallel to the axle and the output shaft at right-angles thereto, the gearbox being suspended by links and having a spring belt-tensioning device. The gearbox 15 is suspended by links 16, 20 from a longitudinal member 1 attached to the vehicle frame and to its input shaft is attached a pulley 30 driven from a pulley 12 on the axle of the vehicle by a belt 32. The belt is preferably of the V-type, and belts and pulleys may be provided in both sides of the gearbox. The belt is tensioned by a spring 28 surrounding a rod 24 attached to the gearbox and bearing on an adjustable collar 29 on the rod and the arm 26 of a bracket carried by the member 1. The output shaft 33 of the gear-box is arranged lengthways of the vehicle and is connected by a universal joint 35 with a shaft 34 made in two parts splined together so as to be extensible and connected to the apparatus to be driven by a universal joint 35<a>. The joint 35<a> may be mounted on the shaft of the machine to be driven, or as shown, it may be mounted on a countershaft 42 which drives the machine 44 through belts 49. In this case the machine 44 is suspended from the vehicle by pivoted arms 45 and is provided with a pivoted arm 51 secured to the frame of the vehicle by nut 54 so that the tension of the belts 49 can be adjusted or the machine removed.
Patent GB-932208-A (GB)
Title: Improvements in or relating to signs
Inventor: WARD MAURICE LEONARD
IPC: G09F7/06
Filed: 1960-10-11
Abstract: 932,208. Signs. LETTERCAST Ltd. Sept. 26, 1961 [Oct. 11, 1960], No. 34838/60. Class 3 (2). A character consists of an outer shell A of polyvinylchloride which is provided with a cellular plastic filling B- such as polyurethane- and location studs 6. The shell is moulded by heating and vacuum forming a polyvinylchloride sheet, which is subsequently cooled and filled with polyurethane foam in which is embedded conical inserts 4 which are bored at 5 to receive locator couplings 6 for fixing the letter to a background.
Patent GB-212997-A (GB)
Title: Improvements in or relating to lehrs
IPC: C03B25/08
Filed: 1922-12-21
Abstract: 212,997. Wade, H., (Dixon Co., H. L.). Dec. 21, 1922. Charges, conveying,-An annealing leer for plate glass is formed with an oven portion in line with the cooling tunnel, and mechanical means are provided for advancing the plates through the oven on to the usual lifting and .pulling rods of the tunnel. In the construction shown pusher members 37 are carried transversely between a pair of rods 19 extending through the oven portion, and connected at one end to the pulling-rods by a pin and socket connection, which allows a limited vertical movement of the rods 19. Each pusher member consists of an angle iron having its free edge 38 bevelled to pass under a plate, and an asbestos or like strip 39 for contact with the edge. The rods 19 are supported on rollers 21 mounted on carriers 22 in turn supported for a limited longitudinal movement in box-like hangers 24, which are lifted vertically at the beginning of the return stroke of the rods by levers 28 - - 32 actuated by the lifting-rods of the tunnel. The movement of the carriers 22 on the hangers 24 allows the rods 19 to make a return movement of a length somewhat greater than the distance between adjacent pushers. The pulling-rods are actuated by a power cylinder and a rack, the latter being arranged to compress a spring, which, at the beginning of the return movement, assists in freeing the pushers 37 from the plates.
Patent GB-387475-A (GB)
Title: Improvements relating to wool washing machines and analogous apparatus
IPC: D01B3/10
Filed: 1931-12-17
Abstract: <PICT:0387475/IV/1> In wool-washing and like machines the working pressure for the top roller of the squeezing rolls is obtained from springs L located above each end of the roller and so housed that they can be compressed to a determined and indicated load without exerting pressure on the roller, the load being then transformed directly to the top roller by a very small movement of pressure controlling means.  The springs L are compressed to the desired degree by tightening the nuts n<3> on the studs N, thus drawing the plate K towards the plate M.  The load is indicated by a finger P moving over a finger Q.  The handwheels J are then rotated until the toe h<1> of each spindle H presses on the top plate K to apply the load of the spring to the thrust bearings O at each end of the top roller arbor.
Patent GB-509601-A (GB)
Title: Improvements in or relating to underground buildings
IPC: E04H9/12
Filed: 1937-12-17
Abstract: 509,601. Air-raid shelters ; garages. HUGHES, H. I. Dec. 17, 1937, No. 35021. [Classes 20 (i) and 20 (ii)] [Also in Group XXI] An underground building for use as a garage and bomb-proof shelter, for example, is provided with floors supported by a central pillar e and a safety girder j extending to the walls, the building being constructed above ground and sunk progressively as the building proceeds by excavating the earth from the interior. A steel ring of the requisite diameter is first constructed and a concrete cutting edge g is cast around the ring. The exterior wall a is then cast in sections on the cutting ring, together with the central pillar, safety girder, and floors. The structure is supported by sand or hydraulic jacks inserted under a ledge h cast on the inner portion of the shell a, until a sufficient number of storeys have been constructed, when the supports are removed and the earth excavated from the interior to cause the structure to sink under its own weight. The processes of building and excavating are repeated until the required number of storeys have been constructed, and the structure is then underpinned at n, k. The floors are connected by ramps d, openings being left for the accommodation of ventilating and lift shafts f, c. These passages also serve for the removal of the excavated material. Openings are formed in the girder as required to allow access between the two sides of the building. The building may be rendered bomb-proof by providing layers of earth and concrete o at the top of the structure, the uppermost storey being provided with reinforcedconcrete supporting girders p. Decontamination chambers, first-aid stations &c., may be provided in the upper storeys, access thereto being obtained through tunnels leading from ground level.
Patent GB-964998-A (GB)
Title: The separation of ketones from aqueous mixtures thereof
Inventor: WEEL THONIS JOHANNES VAN DER
IPC: C07C45/78
Filed: 1961-09-29
Abstract: A process for the recovery of saturated acyclic aliphatic ketones having at least 4 carbon atoms and a methylene group adjacent to the keto group which are adsorbed on activated carbon together with other products derived from the method of manufacture of the ketone which comprises (1) steaming out the charcoal, (2) condensing the vapours to form a crude mixture containing ketone, water, constitutents which are volatile with the ketone and which form resins with alkali metal hydroxide solutions and constituents which have a higher boiling point than the ketone, (3) neutralising the acidic components of the mixture with a base, (4) fractionating to form a vapour containing ketone + water and resin-forming products, (5) passing vapours up a contact column down which alkali metal hydroxide solution (2-40% heated to at least the boiling point of the ketone-water azeotrope) flows, (6) withdrawing and condensing the water ketone azeotrope and separating the ketone. The oxidation products contained in the crude mixture include peroxides, which may be reduced with, e.g. NaHSO3 or Na2SO3 at stage 3, yellow diketo compounds which are removed at stage 5 and acids neutralised in stage 3. Ketones which may be separated by this process include methylethyl ketone; methyl-n-propyl ketone; methyl-n-butyl ketone; methyl-iso-butyl ketone; diethyl ketone and ethyl-n-propyl ketone all of which form azeotropic mixtures with water which have boiling point less than 100 DEG C. at atmospheric pressure. An example describes the separation of methyl ethyl ketone from a raw mixture.  After neutralising the acidic components the mixture may be pre-heated before entering the first fractionating column. The ketone-water azeotrope leaving stage 5 may be passed through a second fractionating column, so as to remove droplets of alkali metal hydroxide, before entering stage 6.
Patent GB-1064178-A (GB)
Title: Improvements in the preparation of alkyl tin compounds
Inventor: OAKES VINCENT
IPC: C07F7/22
Filed: 1964-08-27
Abstract: Alkyltin trihalides are prepared by heating together an alkyl halide and a stannous halide in the presence of a catalyst as described below. The reaction may be carried out at a temperature of at least 120 DEG  C., e.g. 160-170 DEG  C. Catalysts are alkylamines, arylamines, alkyl arylamines, aminoethers, tri-aryl-, trialkyl-, aryl-alkyl-, or triaralkyl-phosphites or phosphines, dialkyl-formamides or sulphones; compounds containing at least two of the following groups, hydroxyl, thioether, ether, mercaptan, carbonyl, nitrile, ester or amide; one of the following, alcohols, ethers, thioethers, mercaptans, ketones, nitriles, esters, or amides, in the presence of metals or boron or salts.  Specified metals are Li, Na, Be, Al, Mg, Zn, Cu and Cd.
Patent GB-1339483-A (GB)
Title: Method for producing liners for feeder heads used in metal casting and an apparatus therefore
IPC: B22C15/24
Filed: 1971-07-27
Abstract: 1339483 Refractory liners M MIKI 25 July 1971 [7 Sept 1970 (2)] 35197/71 Heading C3N [Also in Division B5] Refractory liners, e.g. in the form of sleeves, sheets or slabs, for use in metal casting, are formed from a mixture comprising by weight from 10 to 50% of granular refractory material; 15 to 60% of inorganic fibrous material; 5 to 30% organic fibrous material; from 5 to 10% of a water insoluble binding agent, these ingredients being agitated and mixed in the dry state in a cotton-opener and the mixture then being  kneaded into a dough with less than 1¢ times its  own weight of water, compressed in a mould and dried at a temperature sufficient to melt the binding agent to solidify the mixture. The refractory material may be e.g. silica, alumina,  chamot, brick powder or fly ash and exothermic  materials such as aluminium and its oxidizing  agent may be included; the size of the granules  being between 0À2 and 1 mm. Suitable inorganic  fibres are rock wool, glass wool, slag wool, and asbestos having a length between about 3 and 5 mm, whilst the organic fibres may be of wood chips, wood pulp, or paper from about 0À5 to 5 mm in length. A synthetic resin such as a phenol resin is used as the binding agent.
Patent GB-1046675-A (GB)
Title: Improvements in or relating to the production of steel
Inventor: MOUSTIER EDOUARD DE
IPC: C21B13/10
Filed: 1964-08-27
Abstract: In a process of producing steel directly from iron ore, the latter together with a reducing agent is continuously injected into a bath of iron circulating in a closed cycle, oxygen is blown into the bath at a later stage in the cycle to adjust carbon content, and a fraction of the bath is withdrawn. Heat is supplied to the bath by combustion, as by submerged burners, or by other means to maintain thermal equilibrium.  The oxygen may be added by means of lances passing through the roof or wall of the furnace, or through porous bricks in the hearth; other gases may also be injected to produce agitation, or in conjunction with a vacuum syphon to produce a lifting effect.  Circulation of the bath may be induced by the injected gases, by an electromagnetic pump, or by the vacuum syphon, which may also remove gaseous impurities.  The speed of the bath preferably does not exceed 10 cm/sec., while the mass of the bath should be 5 to 30 times the mass of metal withdrawn per hour, the flow of metal is preferably between 4 and 20 times the flow of withdrawn metal, and the horizontal surface of the bath has preferably an area of at least 5 square metres per cubic meter of gas issuing therefrom.  The carbon monoxide-rich gases evolved in the process may be used to preheat and pre-reduce the ore.  Suitable forms of apparatus are described and illustrated.
Patent GB-282822-A (GB)
Title: A spring support for seats, seat backs and the like
IPC: A47C7/28
Filed: 1927-12-29
Abstract: 282,822. Debelle, L. Dec. 29, 1927. [A Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 30, 1927]. Spring surfaces of the blade spring type comprise leaf springs a each backed by a C-shaped blade spring c having its ends connected by a helical tension spring e. Pivoted links f connect the ends of the leaf and blade springs in a form of the device adapted for seats, the ends of the leaf spring being also pivoted to the seat frame. To provide a floating front edge an additional leaf spring e is connected at the back to the leaf spring a and supported at its front edge by a coil spring m. For a seat back two such compound springs a, e, with the links omitted, are mounted back to back, the upper ends of the springs a being fixed to the frame, the lower ends being free to slide. The Specification as open to inspection under Sect. 91 (3) (a) stated also that the spring structure could be used for " industrial appliances, for example, as a shock absorber in motor-car running." This subject-matter does not appear in the Specification as accepted.
Patent GB-744349-A (GB)
Title: Improvements in or relating to electrical power supply circuits
IPC: G05F1/52
Filed: 1953-12-18
Abstract: 744,349. Automatic voltage control systems. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Dec.,18, 1953 [Dec. 22, 1952], No. 35293/53. Class 38 (4). The output voltage of a series valve type regulator supplied from an uncontrolled rectifier is limited if a predetermined load is exceeded, by rectifying the ripple component of the rectified current and controlling the series valve accordingly. The output of rectifier 15, smoothed at 16, 17, 18, is controlled by a conventional series valve stabilizer 19. In addition, the ripple voltage across condenser 16 is rectified by a diode 26 (biased by a source 27 to determine the level at which limiting is to occur) and applied via diode 29 to the series valve 19 to reduce the output as the load (and hence the ripple) increase. In a modification, Fig. 2 (not shown) the ripple voltage is taken from a resistor in series with the reservoir condenser and load circuit.
Patent GB-626724-A (GB)
Title: Improvements in or relating to colour photography
IPC: G03C7/30
Filed: 1946-11-29
Abstract: 626,724. Colour photography. HARRISON, G. B., and ILFORD, Ltd. Nov. 29, 1946, No. 35487. [Class 98 (ii)] A photographic element containing two or more layers of light-sensitive silver halide emulsions, two such layers being separated by a barrier layer containing colloidal silver sulphide in such small quantity that no colour is imparted to the layer, and which barrier layer is the one particularly described and claimed in Specification 595,582, is treated by a process which includes a development step whereby blue-absorbing colour is developed in the barrier layer, to form light-sensitive silver salt images in the two emulsion layers ; one of these layers is exposed to visible light free from ultraviolet rays and processed to form a coloured image therein, and then the other one is exposed to ultra-violet rays passing through the first emulsion layer and is processed to form a coloured image in it. An example describes a three-emulsion layer film and processes for exposure and development of it which are identical with those of Example 1 of Specification 595,582, except that ultra-violet rays are used to render residual silver halide in the middle layer developable, instead of X-rays.
Patent GB-1049208-A (GB)
Title: Enrichment of ores
IPC: B03B1/02
Filed: 1964-08-31
Abstract: Iron ores, such as minette ores, are concentrated by heating to such a temperature that a melting phase is formed but the hematite is not decomposed, fast cooling the heated ore and crushing the cooled ore. The ore is heated, e.g. in a fluidized bed and after "freezing" of the melt, crushing and milling, separation of the hematite crystals may be effected, e.g. by a high power field magnetic separator.
Patent GB-301741-A (GB)
Title: Method of solidifying gases
IPC: C01B32/55
Filed: 1928-12-03
Abstract: 301,741. Ges. f³r Linde's Eismaschinen Akt.-Ges. Dec. 2, 1927, [Convention date]. Solidifying.-Carbon dioxide &c. is liquefied, cooled almost to its freezing point, and the pressure on it reduced, effecting solidification ; the cooling is effected by allowing a part to evaporate at a pressure above the triple point pressure. The liquefied gas after traversing the interchanger 1 is in part expanded through the valve 4 and allowed to svaporate at say 6 atm. pressure in a cooler 2, cooling the remaining liquid to -50‹ C. After further cooling, and expansion through a valve 5, solidification takes place in a vessel 6, the solid being formed into lumps by impact on a filter, and the gas remaining is returned through an exchanger 3. The pressure in the vessel may be atmospheric or between atmospheric and triple point pressure. A removable cover allows the solid to be removed at intervals, during which the liquid may be expanded into a duplicate vessel.
Patent GB-1406044-A (GB)
Title: Method of manufacturing zinc spinel or a mixture of zinc spinel and eta-alumina and its use in gel permeation chromatography
IPC: B01J20/291
Filed: 1972-07-31
Abstract: 1406044 Zinc spinel MITSUBISHI KASEI KOGYO KK [trading as MITSUBISHI CHEMICAL INDUSTRIES Ltd] 31 July 1972 [31 July 1971] 35633/72 Heading C1A [Also in Division B1] Zinc Spinel or a mixture of zinc spinel and # alumina having pores of uniform radius and suitable for use in gel permeation chromatography is prepared by treating a mixed aqueous solution of at least one zinc salt and at least one aluminium salt consisting of chlorides and/or nitrates of said metals with an aqueous solution of ammonium or sodium bicarbonate acting as a precipitant to precipitate aluminium hydroxide gel and zinc hydroxide gel the atomic ratio of zinc to aluminium in the mixed solution being from 5 : 95 to 33À3 : 66À7 and the precipitant being present in an excess of from 10 to 40% based on the theoretical value heat ageing said gels filtering the heat aged gels and calcining the resulting gels at 900 C. to 1200 C. The gels may be heat aged in the presence of carbon dioxide at superatmospheric pressure for at least five hours at a pH of 5À5 to 7À5 and the zinc spinel or mixture of zinc spinel and # alumina obtained may be of particle size 10 to 100 microns, may have a pore size distribution peak of 20 to 300  and may be used as a column packing material in gel permeation chromatography alone or in admixture with # alumina.
Patent GB-487875-A (GB)
Title: Improvements connected with receivers for bottle filling or like machines
IPC: B67C3/22
Filed: 1936-12-30
Abstract: 487,875. Bottle-filling machines; float valves. CHIGNELL, J. Dec. 30, 1936, No. 35671. [Class 25 (ii)] [Also in Group XXIX] In a bottle-filling machine wherein the liquid level in the receiver is controlled by a counter-weighted float, tension is applied to the balance lever of the float to vary its buoyancy and means provided for controlling and varying the tension so that various liquid levels can be obtained. In such a machine, the inlet pipe 7, Fig. 1, is formed with a thickened wall 9 provided with two gas passages 10, 11 having inlets 12, 13, Fig. 2. Recessed rings 14, 15 are provided adjacent to the inlets 12, 13 and between the pipe 7 and the sleeve 16. A tube 18 is slidably mounted on a tubular extension 17 of the inlet 7 and carries a dome-shaped float 19. The float is balanced by a weight 23 on a bell-crank lever 21, one arm 22 of which engages a grooved collar 20 on the tube 18 and the other arm 35 controls the closing of the gas inlet 31 and the nozzle 34 to the outlet to atmosphere 33. The weighted arm is supported by a spring 29 secured at 28 to a ball-joint 27 carried by a spindle 25 mounted in a screwed socket 26. In operation, liquid enters the receiver down the inlet 7 and the float 19, balanced by the weight 23, rises and moves the arm 35 to cut off the outlet to atmosphere 34. When the receiver is initially charged with liquid, gas is admitted through the passage 10 to the inlet 30. This supply is then cut off and gas is admitted through the pipe 11 and inlet 31. When liquid is siphoned off, the float 19 is lowered, pressure in the receiver is reduced and liquid flows into the receiver through the pipe 7. This flow continues until the float 19 rises and again closes the nozzle 34. The effective level of the float 19 is controlled by the spring 29 and may be varied by moving the spindle 25.
Patent GB-1121466-A (GB)
Title: Mechanism for spinning glass fibers
IPC: C03B37/04
Filed: 1965-08-19
Abstract: <PICT:1121466/C1/1> Apparatus for forming fibres from molten glass comprises a hollow rotary spinner 14, attached to the bottom of a rotatable quill (12) down which is fed molten glass (10), the spinner 14 having a side wall portion 17 provided with circumferentially disposed axially spaced rows of apertures 17a through which the molten glass is projected in horizontal streams, means (18) surrounding the spinner 14 for downwardly directing an annular blast through orifices (19) to thereby attenuate the molten glass streams into fine fibres, and is characterized in that the apertures in the row closest to the attenuating means are of larger cross-section than the apertures in at least one of the other rows.  As show, a number of central rows are of smaller cross-section than both the top rows and the lowermost rows.  The aperture sizes range in diameter from 0.025 inch to 0.032 inch.  Reference has been directed by the Comptroller to Specification 812,657.
Patent GB-382806-A (GB)
Title: Improvements in or relating to friction clutches
IPC: F16D13/71
Filed: 1931-12-28
Abstract: 382,806. Friction clutches. BORG & BECK CO., Ltd. and BOUGHTON, E. B., Brock House, Langham Street, London. Dec. 28, 1931, No. 35802. Addition to 375,362. [Class 80 (ii).] The invention relates to improvements in the pivotal mounting of the radial levers and in the associated parts of the friction clutch claimed in the parent Specification, particularly with a view to reducing friction in heavyduty clutches. Each of four levers 15 is forked to straddle a fulcrum-carrying bolt 18 and has a pivot 21 supported in a ball or roller bearing 20 in the eye 19 of the bolt, which is adjustable by a locked nut 24 bearing on the coverplate 10 and slides in an aperture 23 in the presserring 12. The outer ends 30 of the fork engage a spindle 29 revoluble in ball or roller bearings 28 in a pair of lugs 27 on the presser-ring. Driving-lugs 31 on the ring 12 engage apertures 32 in the cover 10, and antirattle springs 33 are provided as in the parent Specification. Spring connections between the ends 16 of the levers and the operating-collar (not shown) also may be provided. In a simplified modification, the levers rock on transverse pivot pins rigid or integral with the fulcrum-carrying members and engage at their outer ends with rotatable spindles forming abutment members, or, according to the Provisional Specification, with lugs on the presser-ring.
Patent GB-1529488-A (GB)
Title: Splitting of oriented films
IPC: B26D11/00
Filed: 1977-08-15
Abstract: 1529488 Fibrillating roller FLEMINGS ROPES & TWINES (WOOLSTON) Ltd 15 Aug 1977 [28 Aug 1976] 35862/76 Heading B5B In an apparatus for fibrillating films the splitting roller 19 has an outer curved surface which is formed with circumferentially-extending grooves and ridges and which are interrupted by an elongate member (22) wound helically round the roller. The roller may be formed of a plurality of discs and spaces to provide ridges 21 and grooves 20. Means 22 may be a metal wire or strip.