baber/WOPTO huggingface dataset:
Patent GB-193793-A (GB)
Title: Apparatus for separating and sorting solid materials
IPC: B03B4/06
Filed: 1922-09-22
Abstract: 193,793. Blyth, C. E. Sept. 22, 1922. Feeding-devices for granular and like materials; impact pulverizers.-Relates to apparatus for separating foreign matter, such as metal, from material, such as coal, of the kind in which the mixed materials whilst falling on to an inclined plate are subjected to a current of air which separates the lighter material and conveys it up the incline to where it is required, the heavier material passing down the incline to be discharged from the apparatus, and consists in the provision of a valve disposed between the inlets for the air and the mixed materials and the outlet for the separated material and arranged to have three positions in which respectively all the passages are open, the air inlet is shut, or the material inlet is shut. The invention is described as applied to a pulverizing-machine 15 to which the separated material is fed by the air current. The mixed materials are fed from a hopper 6 as by a screw 7 into a compartment 8, and fall through an opening 4 on to an inclined plate 11, where it is subjected to a current of air through the passage 3. The lighter material is discharged by the passage 5 and the heavier material by the opening 14. The controlling valve 16 consists of a plate with suitably arranged openings, and is manipulated by a handle on the outside of the machine. The compartment 8 and inclined plate 11 may be divided into two unequal parts each functioning independently of the other and controlled by independent valves 16 so that the capacity of the machine either as separator and feeder or as feeder only may be varied by closing one or other of the chambers.
Patent GB-1193016-A (GB)
Title: Photosensitive Composition
Inventor: CESCON LAWRENCE ANTHONY
IPC: G03C1/73
Filed: 1968-05-29
Abstract: 1,193,016. Photo-sensetive materials. E.I. DU PONT DE NEMOURS & CO. May, 29, 1968 No. 25641/68. Heading G2C. A photo-sensetive composition comprises (a) a salt of a leuco base of a substituted aminotriarylmethane and an acid (b) a hexa-arylbiimidazole which on irradiation to light between 2500Š and 3700Š oxidizes the leuco base to the dye and (c) a redox couple consisting of (i) a pyrenequinone and/or a phenanthrenequinone as oxident and (ii) an alkyl ester of nitrilo (acetic or priopionic acid) as reductant; the redox couple on irradiation to light between 3800Š and 5000A generates a hydroquinone which deactivates the bi-imidazole. The composition is generally mixed with a polymeric binder and coated in a support and the material is either (i) imagewise exposed to ultra-violet light between 2500A and 3700Š to produce a negative dye image which is fixed by uniform exposure to light of longer wavelength or (ii) imagewise exposed to light of wavelength between 3900Š and 5000Š to deactivate the bi-imidazole in the exposed areas and then developed by uniform exposure to light between 2500Š and 3700Š to produce a stable, positive dye image.
Patent GB-231772-A (GB)
Title: Improvements relating to spring rollers for blinds, screens and so forth
IPC: E06B9/60
Filed: 1924-10-28
Abstract: 231,772. Glenister, A. Oct. 28, 1924. Spring roller-blinds. - A spring roller for window blinds or screens having one end attached to a sliding sash has a spring coiled round the spindle, and a catch on the spindle adapted after the spring has been wound up to be brought into engagement with a stop or projection inside a sleeve or socket secured to one end of the roller. The catch is pivoted in a recess on the spindle b, and when the coil spring c, attached at one end to the roller and at the other to the spindle, has been wound by rotation of the spindle, the roller is tilted and the catch j engages projections k in the roller a. .When mounted, the roller is slightly turned and the catch falls free. To ensure tilting, the spindle is formed with a hook h which can be engaged in a sloit o in a supporting plate n only when the roller is tilted. The ends of the recess m suitably limit movement of the catch j. Thepivoted end of the roller is supported in a slotted plate provided with a spring member.
Patent GB-1145684-A (GB)
Title: Method and apparatus for the continuous production of reinforced flexible hoses
IPC: B29C48/153
Filed: 1966-06-09
Abstract: 1,145,684. Extruding reinforced hose. PIRELLI S.p.A. 9 June, 1966 [11 June, 1965], No. 25702/66. Heading B5A. [Also in Division F2] A hose of elastomeric material, e.g. natural or synthetic rubber, reinforced with metallic or non-metallic threads, yarns, cords or tapes is produced by extruding a tube through nozzle 14 about a mandrel 16, embedding in or surfacing this tube immediately prior to extrusion with axially disposed reinforcement 18, 18<SP>1</SP>, winding on to the extruded tube further reinforcement 35, 36 derived from reels 31, 32 supported to rotate about an axis coincident with that of the tube and passing the thus reinforced tube through a second extrusion die (12), Fig. 1 (not shown), to receive a coating thereabout. Axial reinforcement 18, 18<SP>1</SP> is fed from reels 19, 19<SP>1</SP> and led to the extruding material via channels (21, 21<SP>1</SP>), Fig. 4 (not shown). Reinforcement 35, 36 is applied by rotation of a guide ring 28 and attached arms 27, 27<SP>1</SP>, the tube being internally supported at this stage by an extension (16<SP>1</SP>), Fig. 4 (not shown), of mandrel 16. Reels 31, 32 are rotatable on a hollow spindle 33 which may be fixed or rotate at the same speed as ring 28, e.g. by connection thereto. A cooling chamber (41), Fig. 1 (not shown), and take-off mechanism (13) are provided. Further transverse reinforcement may be applied at a point where the tube is unsupported, i.e. downstream of mandrel extension (16<SP>1</SP>).
Patent GB-866840-A (GB)
Title: A process for inhibiting the formation of a precipitate in an aqueous liquid
IPC: C11D3/20
Filed: 1958-08-11
Abstract: A sequestering agent comprises a mixture of a water-soluble organic polyhydroxy compound having at least four carbon atoms and at least two vicinal hydroxyl groups per molecule and boric acid or a water-soluble borate.  Polyhydroxycarboxylic acids, such as gluconic acid, or a water soluble salt thereof or gluconic lactone, arabinic, galactic, saccharic, mucic, glucuronic, glucoheptonic, ketogluconic and tartaric acids may be used or they may be replaced partly or entirely by aldohexoses, hexitols, pentoses or tetroses.  In one method, a mixture of sodium gluconate and an excess of boric acid is prepared and then mixed with a polyhydroxy compound such as glucose. In examples, a technical solution of sodium gluconate is heated with borax or boric acid until all had dissolved.ALSO:A rinsing preparation, for use in bottle washing, comprises a solution of an alkylarylsulphonate and a sequestering agent comprising a mixture of a water-soluble organic polyhydroxy compound having at least four carbon atoms and at least two vicinal hydroxyl groups per molecule and boric acid or a water-soluble borate such as borax.  Preferred polyhydroxy compounds are polyhydroxycarboxylic acids, such as gluconic acid, or a water-soluble salt thereof, or gluconic lactone, and/or aldohexoses, hexitols, pentoses or tetroses.ALSO:The formation of a precipitate containing polyvalent metal ions in an aqueous liquid containing such ions is inhibited by adding a sequestering agent comprising a mixture of a water-soluble organic polyhydroxy compound having at least four carbon atoms and at least two vicinal hydroxyl groups per molecule and boric acid or a water soluble borate.  Polyhydroxycarboxylic acids, such as gluconic acid or a water-soluble salt thereof, or gluconic lactone, give best results but these may be replaced partly or entirely by aldohexoses, hexitols, pentoses or tetroses.  The sequestering agent may comprise from 1/2 to 4 mols of the polyhydroxy compound per mol of boric acid or borate.  An aqueous solution of the sequestering agent has a sequestering action on Ca, Mg, Cu, Zn, Mn, Fe, Al and Cr ions.  The agents are particularly useful for softening water.
Patent GB-1004790-A (GB)
Title: Method and apparatus for the production of particle board panels
IPC: B27N3/08
Filed: 1962-06-28
Abstract: An automatic plant for the production and stacking of board having coarse particles in the middle and fine particles at each surface comprises an endless conveyer, a particle distribution chamber, a mat-severing cutter and a single opening press, programmed electrical means being provided for effecting operation of the particle distribution chamber and the mat severing cutter and for opening and closing the press only when the conveyer is stationary. The distribution chamber passes in one direction along the conveyer belt while the latter is stationary to build up successive layers of fine, coarse and fine particles.  The conveyer belt is then moved intermittently to enable the loose material to be cut into sections and formed into boards in a heated hydraulic press.  The mat severing cutter may be a band saw which produces two narrowly spaced cuts. The material between the cuts may be sucked up by a vacuum pump.  The upper and lower surface of the material to be pressed may be sprayed with water or a solution of a silicone.  The conveyer may be automatically stopped as a result of excessive lateral deviation.
Patent GB-801849-A (GB)
Title: Improvements in or relating to ceramic dielectric compositions
Filed: 1955-09-09
Abstract: A ceramic material corresponds to the formula (1-x) L2O,x Mo,R2O5 wherein L is sodium which can be partially replaced by potassium, M is cadmium and/or lead.  R is niobium which can be partially replaced by tantalum, and x is 0,05 to 0,80 mole, L consisting wholly of sodium when lead is present.  The material is prepared by pressing, with a temporary binder, a mixture of the oxides or precursors therefor, prefixing at 1000 DEG -1100 DEG C., powdering the product, shaping the powder and sintering at 1100 DEG -1350 DEG C.
Patent GB-963276-A (GB)
Title: Spring mounting means for the rollers of a metallurgical furnace
IPC: C21B13/08
Filed: 1961-07-18
Abstract: 963,276. Mounting bearings. DEMAG A.G. July 18, 1961 [July 23, 1960], No. 26044/61. Heading F2A. A resilient mounting for the bearings of the supporting rollers of a rotary metallurgical furnace comprises a spring 4 mounted on a support 5 secured to the furnace frame 8. The spring is also attached to a lever 6 which carries bearing boxes 2a and 3a of frusto-conical roller 2 and locking roller 3 respectively. The rollers 2 and 3 respectively engage adjacent faces 1a, and 1b of the track ring 1 which encircles the furnace drum T and is coaxial therewith. This mounting arrangement maintains both rollers in contact with the track ring in spite of any irregularities in rotation of the furnace during operation.
Patent GB-310310-A (GB)
Title: Apparatus for the delivery of sheets for use with printing machinery in particular
IPC: B65H29/24
Filed: 1928-09-11
Abstract: 310,310. Schnellpressenfabrik Frankenthal, Albert et Cie Akt.-Ges. April 23, 1928, [Convention date]. Rotary machines.-In mechanism for delivering sheets from a printing- machine 1 to the feeding table of the next machine, the sheet is transferred from fast-running grippers to slow-running grippers by an intermediate gripper-cylinder 18. From the impression cylinder 1 the sheets are taken by grippers 15 on endless chains 9 travelling at the same speed as the machine 1. The cylinder 18 travelling at a lower speed than the chains 9 transfers the sheets from the grippers 15 to grippers 22 - - 27 on endless chains 20 travelling at the speed of the cylinder 18, which deposit the sheets on a delivery table 43 or on the feedtable of the next machine. The chains 20 may be extended so that the feed-table and a delivery table can be arranged side by side and the sheets are delivered to either table as desired. The mechanism may be arranged to deliver the sheets with the printed face either upwards or downwards. According to the Specification as open to inspection under Sect. 91 (3) (a), the cylinder 18 may be dispensed with and the sheets taken by the chains 20 directly from the chains 9. Also, instead of chains, gripper-cylinders taking the sheet directly from one another may be employed. This subject-matter does not appear in the Specification as accepted. Printing-apparatus combined with drying- apparatus.-The printed sheets are dried by jets of air from blowers 46 - - 48 arranged adjacent to the chains 9, 20. The shafts 13, 50, 51 of the rollers carrying the chains are made hollow with openings for directing air on to the sheets. Alternate blasts of hot and cold air may be employed.
Patent GB-1256298-A (GB)
Title: Vicinal halocarbamoyloxy steroids
Inventor: PONSOLD KURT
IPC: C07J41/00
Filed: 1969-05-22
Abstract: 1,256,298. Vicinal halo-carbamoyloxy steroids. JENAPHARM VEB. 22 May, 1969, No. 26130/69. Heading C2U. The invention comprises steroids of partial formula wherein C-C represents two adjacent carbon atoms of a steroid skeleton, the two indicated substituents being in cis or trans relationship; X is halo and R is alkyl, aryl, aralkyl, cyclohexyl, alkoxycarbonylmethyl, acyl or optionally substituted amino. Preparation is from the corresponding halohydrins either by reaction with phosgene and treatment of the resulting chloroformate with a compound RNH 2,  or, for products wherein R is alkyl or aryl, by reaction with an alkyl or aryl isocyanate. Intermediate chloroformates described are those of 16α - bromo - 3 - methoxyestra- 1,3,5(10) - trien - 17# - ol and of 16# - chloro- 3 - methoxyestra - 1,3,5(10) - trien - 17# - ol.
Patent GB-385363-A (GB)
Title: Improvements in means for holding thermionic tubes
IPC: H01R33/76
Filed: 1931-09-18
Abstract: 385,363. Thermionic valve-holders. ROBINSON, W. W., 1220, South La Salle Street, Beloit, Wisconsin, U.S.A. Sept. 18, 1931, No. 26166. [Class 39 (i).] Each contact consists of a base portion 10, secured by a rivet 12 to an insulating base 11, and an extending part 20 formed at the free end with two wings 21, the edges 22 of which engage with a valve pin 24. A spring B of steel strip is secured by the rivet and bears against the part 20. Rotation of the contact is prevented by a lug 10a. The pins are guided into holes in the base 11 by a circular aperture 29 in an insulating plate 28.
Patent GB-261788-A (GB)
Abstract: 261,788. National Cash Register Co., (Assignees of Goldberg, M. M). Nov. 23, 1925, [Convention date]. Operating by motors.-To prevent successive operations of a calculating-machine or cash register without sufficient time elapsing between the operations to let the motor slow down or stop, means are provided to prevent closure of the motor circuit, when the machine has reached home position. until after a predetermined interval has passed. As shown applied to a known type of machine wherein the drive from the motor passes from a pinion 37 through a clutch and gearing to the main shaft 30, a train of spurwheels 90, 92 conveys motion to a wheel 94 carrying a plate having a lug 102. Opposite this wheel is another 100 carrying a cam plate 99 formed with a lug 101 maintained in contact with lug 102 by a coiled spring 97. The wheel 100 is adapted to drive an air brake 129 by means of pinions 123, 124, 126. The motor being switched in by depression of the key 82 and the drive having begun, a pin 106 releases a spring-controlled pawl 104 so that its end 108 moves into the path of the lug 101 to hold the wheel 100 and the brake train stationary against the tractive effort of the spring 97 which therefore is wound up. A second switch 118 in the motor circuit meanwhile remains closed as the arm 120 of the contact lever 116 bears on a low surface on cam 99. When the cycle has been completed and roller 106 frees the lug 101, the spring 97 causes the wheel 100 and the brake train to rotate until the lugs 101, 102 again engage. Throughout this rotation the lever 116 is displaced clockwise by the cam 99 thus keeping open the switch 118 to prevent completion of the motor circuit by the motor key 82.
Patent GB-912932-A (GB)
Title: Improvements in fluid flow control valves
Inventor: OUDEN FRITS JAN WILLEM DEN
IPC: F16K1/10
Filed: 1961-07-19
Abstract: 912,932. Valves. STOKVIS KONINKLIJKE FABRIEK VAN METAALWERKEN N.V., W. J. July 19, 1961, No. 26184/61. Class 135. A valve comprises a housing having a straight through flow channel 2 in the region of a slat 3 inclined to the channel axis and a screwthreaded cylindrical member 1 forming part of the housing extends coaxially through the seat and engages the thread of a valve 5 guided by tubular extension 4. The valve 5 may screw on or in to the member 1 and has a shoulder 14 mating with a seat 15 when open to prevent linkage around the operating stem 6.
Patent GB-771298-A (GB)
Title: Improvements relating to the construction of vehicle body floors
IPC: B62D25/20
Filed: 1955-09-13
Abstract: 771,298. Vehicle floors. GOSSLING, P. L. and BLAKE, R. K. Sept. 13, 1955, No. 26204/55. Drawings to Specification. Class 108(1). A vehicle body floor construction comprises a series of preformed longitudinally flanged metal floor forming units located side by side transversely of the vehicle each having an integral base part secured to and solely supported by the main longitudinal vehicle chassis members.
Patent GB-463324-A (GB)
Title: Improvements in or relating to aluminium base alloys
IPC: C22C21/12
Filed: 1935-09-24
Abstract: In a heat-treated aluminium alloy containing magnesium silicide and copper, the content of magnesium silicide is at least 0,5 per cent in excess of the amount soluble at the temperature of heat-treatment. The alloys may contain 1,5-3 per cent of magnesium silicide and 0,1-4 per cent of copper, with or without 0,1-1 per cent of one or more of the metals chromium, molybdenum, tungsten, and uranium.  The alloy is maintained at the temperature of heat-treatment, which may be between 500 DEG  C. and the temperature of incipient fusion, and is rapidly cooled, after which it may be aged for 3-36 hours at 140-200 DEG  C.
Patent GB-241926-A (GB)
Title: Improvements in a machine for fastening together thicknesses of material, especially leather in the manufacture of bags and the like
IPC: B68F3/02
Filed: 1925-10-22
Abstract: 241,926. FrÚmont, A. Oct. 24, 1924, [Convention date]. Machines using finished staples. - A machine for connecting by staples two thicknesses of material, particularly in the manufacture of travelling bags, is arranged to insert simultaneously a plurality of staples supplied to a series of drivers by automatic magazines. The drivers 5 in the form of flat plates are carried by a carriage 4 slidable on guides 2, 3 by means of a nut 8 and a screw 7 operated by a worm wheel 10 and worm 11 and handwheel 13. An anvil 14 carried by the machine frame is provided with clinching recesses 15. A series of staple magazines corresponding to the drivers are pivoted at 20 and are held up by springs 21, to grip the work between staple throats 22 and the anvil, but may be lowered, for insertion of the work, by cams 17 operated by a handle 18. Each magazine comprises a tube along which staples 23 are pushed by a pusher 27 and spring 26, the pusher having luge to engage guide slots in the tube. In operation a staple is fed to each throat 22 and is inserted by the corresponding driver 5 when the wheel 13 is rotated.
Patent GB-876730-A (GB)
Title: Production of branched-chain aliphatic hydrocarbons
IPC: C10G67/06
Filed: 1959-08-04
Abstract: The proportion of branched chain isomers in a paraffinic feed stock is increased by isomerising in the presence of hydrogen, distilling the the product to obtain an overhead comprising hydrogen and normally gaseous hydrocarbons and bottoms comprising normal and branched chain paraffins, which are separated by contact with a molecular sieve, the effluent comprising branched chain isomers collected as product, and desorbing the normal paraffins from the sieve by means of the overhead, the resulting mixture being recycled to the isomerisation.  The feed stock may be a single hydrocarbon or a mixture of hydrocarbons in the C4-C12 range.  Isomerisation catalysts may be employed such as inorganic mineral acids, metal halides, sulphates of zinc, aluminium or tin, calcined silica-alumina, phosphoric acid on kieselguhr and composites of a hydrogenating component, particularly Group VIII metals, on a refractory oxide such as alumina containing combined chlorine and/or fluorine. Using metal salts temperatures of -30 to 100 DEG C. and pressures of to 1000 p.s.i. are used while processes involving metal-oxide composites employ 80-500 DEG C. and up to 1500 p.s.i. Desorption of the molecular sieve may be effected at 50-400 DEG C., preferably at or near the sorption temperature and at least as high as the boiling point of the highest boiling adsorbed material at the existing pressure.  The volume of desorbing agent passed through a sieve is 1-40 times the combined volume of void spaces between the sieve particles and the pore volume.
Patent GB-808843-A (GB)
Title: Improvements relating to the melting and casting of titanium and the production of titanium base alloys
Inventor: PAYNE RONALD JAMES MALCOLM
IPC: C22C1/02
Filed: 1955-09-16
Abstract: Ti, or Ti and an alloying metal (e.g. Cu) to produce a Ti base alloy, are melted under a protective fused flux.  The flux is preferably one or more of the fluorides of Ca, Sr. Ba, Li, Mg, (e.g. 80 per cent CaF2, 20 per cent MgF2), and the metal may then be cast.  A protective atmosphere, e.g. argon may be used; and heating may be by induction or by arc melting in a crucible or on a water-cooled copper hearth.  In making the alloy the Ti and alloying addition may be added to the molten flux in either order or together.  When casting, the molten Ti or Ti alloy is maintained under the flux until the moment of casting, and although air need not be excluded casting should be in a protective (a.g. argon) atmosphere and preferably into a warm graphite mould.
Patent GB-278732-A (GB)
IPC: B26D1/143
Filed: 1927-10-07
Abstract: 278,732. Maatschappij tot Vervaardiging van Snijmachines Volgens van Berkel's Patent en van Andere Werktuigen, (Assignees of Rienks, TV.). Oct. 7, 1926, [Convention date]. Cutting slices in succession.-In a discknife reciprocating table slicing - machine driven by an electric or other motor, a reduction gear arranged apart from both the slicing knife and its shaft, is disposed at the side thereof opposite to the slicing station, and is operatively connected to the knife shaft and to the countershaft driving the reciprocating carriage. As shown in Fig. 1, the knife shaft 2 and the usual countershaft 3 are rotated by a chain 5 driven from a sprocket 6 on the shaft 7 of the reduction gearing enclosed in a casing 8. The reduction gearing comprises a pulley 11 on the motor shaft 12, a pulley 9 of large diameter on the shaft 7, and a belt 10 which is tensioned by a roller 14. With this arrangement, the operator has unrestricted access to the place where the slices are cut and deposited. In modifications, the knife is driven from the reduction gear by a sprocket chain, and the countershaft 3 is driven from the knife shaft by another sprocket chain, or the knife and countershaft are driven from the reduction gear by an endless belt with or without a tensioning roller, or the countershaft is belt-driven from the reduction gear and the knife is belt-driven from the countershaft, or a pinion on the motor shaft engages a large spurwheel on the countershaft from which the knife is driven by a belt or chain.