baber/WOPTO huggingface dataset:
Patent GB-1344954-A (GB)
Title: Method for producing high-purity nickel from nickel oxide ore
IPC: C01G53/10
Filed: 1972-03-24
Abstract: 1344954 Extracting Ni and Co from ores LE NICKEL 24 March 1972 [29 March 1971] 14062/72 Heading C1A Ni, and Co and other metal values are extracted from oxide ores, e.g. laterite, by (a) lixiviating with H 2 SO 4 , (b) neutralizing the soln. to a pH of 3À5-4À0, (c) precipitating Ni(OH) 2  with e.g. MgO, Na 2 CO 3  or Ca(OH) 2 , optionally treating the liquid to recover Mn and Mg sulphates, (d) dissolving the Ni(OH) 2  in H 2 SO 4 , e.g. to pH of 3, the residue containing Mn, Mg and Al values, (e) extracting the soln. with an immiscible organic phase containing a sulphonium salt, e.g. thiocyanate, (f) eluting the organic phase to recover Co, Zn and Fe values and finally, (g) subjecting the NiSO 4  soln. to electrolysis to obtain Ni metal, a Mn slurry and a H 2 SO 4 /M.SO 4  soln. which may be recycled to dissolve fresh Ni(OH 2 ) in step (d). The soln. obtained in (c), after separation may be treated to recover H 2 SO 4  and precipitating agent, which are recycled. Reference has been directed by the Comptroller to Specification 1,314,924.
Patent GB-1066407-A (GB)
Title: Surface cleaning and defatting composition
IPC: C11D17/00
Filed: 1966-03-30
Abstract: Liquid storable concentrates and cleaning and defatting compositions prepared from the said concentrates by dilution with water comprise:-(a) non-ionic surface active concentration products of about 3-15 moles of ethylene oxide with an organic compound contataining an active hydrogen bound to oxygen, sulphur or nitrogen atoms; (b) fatty acids; (c) alkanolamides.  The concentrates may or may not include organic solvents such as paraffin oil or kerosene and optional ingredients include corrosion inhibitors, water softening agents, passivization agents and agents for improving the soil suspending power.
Patent GB-453913-A (GB)
Title: Improvements in or relating to photo-electric exposure meters
IPC: G01J1/42
Filed: 1935-03-19
Abstract: 453,913. Photo - electric exposure meters. METRAWATT AKT.-GES., 52, Schoppershofstrasse, Nuremberg, Germany. March 19, 1935, No. 14231/36. Convention date, June 1, 1934. Divided out of 453,864. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 24, 1935.] [Class 98 (i)] A meter of the kind comprising a photoelectric element and a current - measuring instrument in a common casing is provided with an externallyoperable masking - plate pivotally mounted within the casing and rotatable into either of two positions to cover the photo-electric element to different extents. As shown, the casing 1 contains a photoelectric cell 2 between which and the inset window 3 is a perforated diaphragm 19 mounted on a pivot 20 rotatable by an external handle 21 into two different positions, which may be indicated by a scale under the handle or may be determined by stops. In the operative position, the diaphragm rests between the window 3 and cell 2, and its perforations may cover 90 per cent of the light-sensitive surface. In the inoperative position 19<1> the diaphragm rests between the scale disc and magnet of a directcurrent measuring instrument, the pointer 6 and scale of which are seen through a window 7 near the handle 21.
Patent GB-378509-A (GB)
Title: A new corselette or like body sheath
IPC: A41C1/06
Filed: 1931-05-14
Abstract: 378,509. Corselettes and like undergarments. V@RAT, E., St. Cyr au Mont, D'or, Rhone, France. May 14, 1931, No. 14279. Convention date, April 9. [Class 141.] An undergarment of the form shown in Fig. 1 is made without rubber in the following manner. Sections A, B, C, D, Fig. 2, are knitted for each breast part, the sections A, B being approximately triangular and formed by narrowing in the knitting process. The sections C, D have rectangular extensions E, F respective y. The sections are seamed together and the extensions F on the two breast parts are joined to correspond to the parts between the breasts. The corresponding sections E are also joined at the rear of the garment. The whole is then mounted on the knitting machine and the garments completed.
Patent GB-496244-A (GB)
Title: Improvements in or relating to tickets, nameplates and the like
IPC: G09F3/02
Filed: 1937-05-22
Abstract: 496,244. Tickets &c. GMACH, L. T. May 22, 1937, No. 14302. [Class 73] Price tickets &c. comprise a carrier sheet of metal, paper, &c. printed in colour and mounted between a transparent layer and an opaque backing both of larger size. The outer layers may be of celluloid and are made adhesive, the several sheets being united by pressure. Reference has been directed by the Comptroller to Specification 328,070, [Class 73].
Patent GB-1308735-A (GB)
Title: Method of extracting aromatic hydrocarbons
IPC: C07C7/10
Filed: 1971-05-11
Abstract: 1308735 Separating aromatic hydrocarbons from mixtures SOC ITALIANA RESINE SpA 11 May 1971 [12 May 1970] 14336/71 Heading C5E A hydrocarbon mixture 7 is fed to a multistage extractor 1 and a stream 8 of anhydrous ethylene diamine or of ethylene diamine containing up to 20 wt. per cent water is fed to the extractor above the entry point of the mixture 7. The extraction temperature is maintained between 40 and 80 C. The extract phase 9 is removed from the bottom of the column and cooled by at least 30 C. so that a heavier solvent-containing phase and a lighter hydrocarbon-containing phase separate at 2. The heavier solvent-containing phase is recycled through line 11 to the extractor 1 at a region between the inlets 7 and 8. The lighter phase 12 is scrubbed with water 13 at 3 to produce an aqueous ethylene diamine-containing phase 15 and a hydrocarbon phase 14. The hydrocarbon phase 14 is azeotropically distilled with acetone vapour 16 at 4 to produce an overhead fraction 17 of acetone and non-aromatic hydrocarbons and a bottom fraction 18 of aromatic hydrocarbons which is then rectified. The raffinate phase 10 from the extractor 1 is scrubbed with water 23 at 6 to produce a hydrocarbon phase 22 and an aqueous ethylene diamine phase 21. The aqueous ethylene diamine streams 21 and 15 are concentrated by distillation at 5 before recycle to the extractor 1. The extractor 1 can be a perforated tray column, a packed column or a rotating disc contactor having 5 to 15 theoretical trays. The hydrocarbon phase 22 can be distilled to provide a stream of lighter hydrocarbons which are fed to the bottom of the extractor 1. Benzene can be recovered from hydrogenated reforming gasoline and benzene, toluene and xylene can be recovered from a mixture thereof with C 6-8  non-aromatic hydrocarbons.
Patent GB-591350-A (GB)
Title: Improvements in firing mechanism for firearms
IPC: F41A19/45
Filed: 1945-06-07
Abstract: 591,350. Smallarms. CLARK, D'A. M. (Smith & Wesson. Inc.). June 7, 1945, No. 14393. [Class 119] A firearm comprises a sear, a trigger bar for actuating the sear, a hammer controlled by the sear, means for disengaging the trigger bar from the sear when the hammer is released from the sear, and a member for urging the sear into engagement with the hammer and also yieldingly urging the trigger bar into engagement with the sear, the member being U- shaped with one end engaging the sear and the other end engaging the trigger bar. In the construction shown, the hammer 10 is held cocked by a sear 14 pivoted at 15 and having a depending arm which is engaged by a trigger bar 13. The hammer is urged to the firing position by a spring-controlled plunger 23 whose spring is housed in a cylinder 22 which has a ball lug 33 bearing on a U-member 26. This U-member has a ball lug 32 seating in the frame of the firearm and has two arms 27, 28 which respectively press upwards against the trigger bar and an arm 29 of the sear. When the trigger is pressed, the bar 13 actuates the sear to release the hammer, and when the hammer rotates clockwise under the action of plunger 23, a cam 36 cams the trigger bar out of engagement with the sear. This frees the sear to be returned into position to catch the hammer when the latter is re-cocked by the breech-bolt. If the trigger has been released, the return of the sear is mainly effected by the movement of member 26 under the action of the spring, but if the trigger is still pressed, the return is effected by the resilience of the member 26. A movable plate is provided above the trigger, the plate having an aperture which can be brought into or out of register with a lug on the trigger to permit or prevent firing.
Patent GB-932636-A (GB)
Title: Improvements in anemometers
IPC: G01P1/12
Filed: 1962-04-13
Abstract: 932,636. Wind vanes. C. H. NORDLOW. April 13, 1962 [April 15, 1961], No. 14394/62. Class 97 (2). [Also in Group XXIX] An anemometer 3 carries upon it a wind vane 1 mounted in bearings 17 and coupled to a Selsyn transmitter 2 by which wind direction can be indicated at a distance along with a measure of wind speed from the anemometer Selsyn 5.
Patent GB-871090-A (GB)
Title: Improvements in or relating to the milling and drying of grass and other substances
IPC: B02C13/286
Filed: 1959-04-29
Abstract: 871,090. Hammer mills. WALLEY, P. P. April 14, 1960 [April 29, 1959], No. 14591/59. Class 59 In apparatus for pre - breaking grass and .other substances prior to their entry into a grinding mill and comprising a casing a in which are disposed hammers b carried by a driven shaft c, the casing having an inlet d for grass and an outlet e from which the broken-up grass is drawn for transmission to the mill, the casing is provided with an extension f -in which are disposed baffle plates h, h<SP>1</SP> for teasing out the grass and preventing it from falling in clumps on the hammers. The baffle plates may each comprise a series of tines or teeth. The grass is dried by means of heated air or flue gases passed through an inlet j. Specification 696,099 is referred to.
Patent GB-764918-A (GB)
Title: Improvements in or relating to methods and apparatus for producing an emulsion
IPC: B01F11/02
Filed: 1954-05-18
Abstract: <PICT:0764918/III/1> <PICT:0764918/III/2> <PICT:0764918/III/3> <PICT:0764918/III/4> Emulsions are produced by directing the constituents of the emulsion through the nozzle which is adjustably set so as to impinge upon a plate which is immersed in at least part of the consituents and adjusting the jet so that the plate is caused to vibrate at ultrasonic frequency and so agitates the constituents. A device for producing supersonic vibrations in plate 18 (Figs. 3 and 4) by means of a jet of liquid directed against its edge comprises two flanges 8, for attaching to the walls of a container, which serve as carrier guides for a tubular member 9 which extends through the wall of the container and is connected to the liquid supply.  The end of the tubular member is threaded and by means of the tapped ring 11 its position relative to the plate can be adjusted.  The front end of the member forms the conical nozzle 12 with parallel-sided slot 13 (Figs. 5 and 6) closed by tongues 14 (Figs. 5 and 6).  A nut 15 allows adjustment of the breadth of the slot.  A sleeve 16, rigid with respect to the flanges carries two plates 17 carrying the vibrating plate which lies in a plane defined by the jet of liquid. A screw 23 (Fig. 4) acting laterally on the plate 18 allows adjustment in a direction perpendicular to slot 13.  Liquid which is pumped through 9 on to the vibrator may be continuously recirculated by a recirculating pumping system.ALSO:A method for preparing emulsified starch sizes, which do not clot or settle consists in directing a part of the mixture to be emulsified as a jet impinging edgewise on to a plate which is thereby caused to vibrate at supersonic frequency and transmits these vibrations to the rest of the liquid.
Patent GB-485053-A (GB)
Title: Improvements in mechanical transmission systems for aircraft
IPC: B64D35/04
Filed: 1937-05-26
Abstract: 485,053. Propelling aircraft. ALMONACID, V. A. May 26, 1937, No. 14656. Convention date, May 4. [Class 4] [Also in Groups XXIV and XXVI] Mechanism in which driving and driven shafts a<1>, a<2>, Fig. 1, have at least two opposed crank arms b<1>, c<1>, b<2>, c<2>, the corresponding crank-pins of which are connected by wires d, e, or other tension members, so that the crank arms always remain parallel, is applied to the driving of a number of aeroplane propellers. A central driving shaft a<1>, Fig. 3, is connected through cables d, e with driven shafts a<2>.. a<7> carrying propellers g<2>, g<7>, respectively, arranged in spaced and parallel relationship at the front of an aeroplane wing h. Guide cranks i may be provided to prevent vibration and deformation. The ends of the cables d, Fig. 4, are connected through eyes d<1>, d2 to a common metal piece j mounted by means of a ball or roller bearing k on the crankpin b<1>. Stretchers or other devices may be provided for adjusting the tension of the cables.
Patent GB-611976-A (GB)
Title: Improved support for vertically slidable windows, doors and the like
IPC: E05F11/00
Filed: 1946-05-15
Abstract: 611,976. Preventing rattling of windows &c. SMITH, J. SANDFORD-. (Lambert, L. B.). May 15, 1946, No. 14679. [Class 20(iii)] A support for vertically slidable windows &c. 1 housed in a channel 2 in the side edge thereof comprises one or more bowed springs 6, 7 secured within the channel and adapted to curve outwardly carrying a ramp 14, 15 on which is slidably mounted a shoe 21 adapted to bear against the fixed frame 4, a spring 22 tending to move the shoe to the higher portions of the ramp. and means 11, 12 whereby the pressure applied by the shoe to the window &c. frame is varied. As shown, the spring 6 is attached at one end 9 to the window, and connected to a second spring 7 by a rigid bar 8. At the lower end it is riveted to a rigid strip 10 ,vith a right angle bend 10a, through which an adjusting screw 11 freely passes to screw through a cross bar 12 fixed in the window and extending across the channel. A distance piece 13 may be used to bring the head of the screw 11 near the open end of the channel 2, to facilitate adjustment. By turning the screw 11 the strip 10 can be raised or lowered and hence the pressure exerted by the shoe increased or decreased. The ramps are rigidly connected to the bowed spring at each end. The device prevents rattling.
Patent GB-168394-A (GB)
Title: Improvements in vacuum tube relay devices and the like especially for use in wireless signalling systems
IPC: G01R19/145
Filed: 1920-05-29
Abstract: 168,394. Taggart, J. Scott-, and Radio Communication Co., Ltd. May 29, 1920. Vacuum tubes.-In a method of operating direct-current instruments, for example ammeters, by the indirect application of direct or alternating currents, especially those of high-frequency, the latter are passed through the filament of a two-electrode valve whose filament is preferably normally not sufficiently heated to emit electrons. The direct-current instrument is included in the valve plate circuit which includes a source of steady E.M.F. In one application, Fig. 3, it is used as an aerial ammeter.
Patent GB-148608-A (GB)
Abstract: 148,608. Dawson, T. April 17, 1919. No Patent granted (Sealing fee not paid). Stapling.-A taper-fasten ing apparatus of the type shown has a convergent opening o and a leaf spring e turned away from the opening out of the way of the work.
Patent GB-110403-A (GB)
Title: Improvements in the Method and Means for Building Large Chimneys or Shafts.
Inventor: TATTERSALL JAMES THOMAS
IPC: E04H12/28
Filed: 1916-10-19
Abstract: 110,403. Tattersall, J. T. Oct. 19, 1916. Settings. - Boiler settings &c. are built with any desired number of courses of speciallyshaped blocks which have each a channel C for the reception of a metal hoop or other reinforcement E and a filling of cement, concrete, or the like, and have also channels A, B formed on them for the circulation of air to prevent undue expansion of the hoop and the cracking of the cement &c. The air passage A may be made in the body of the block, or in the bottom face, and the channels B may be discontinuous, and communicate with passages A above and below the blocks.
Patent GB-872461-A (GB)
Title: Improvements in or relating to multi-colour rotary proof-presses
IPC: B41F5/20
Filed: 1957-05-10
Abstract: 872,461. Printing machines. SMITH, J. H. W., and BALDWIN, D. T. R. May 7, 1958 [May 10, 1957], No. 14949/57. Class 100(2) A multi-colour rotary proof press is provided with a plurality of inking mechanisms, one for each colour, mounted on a turret which is rotatable to move each inking mechanism selectively from an inking station, in which an appropriately coloured ink is fed to the inking mechanism, to a printing station in which the ink is applied to the plate on the plate cylinder. As shown the turret 1 carries three inking mechanisms and is rotatable about a shaft which is eccentrically and rotatably mounted in the machine frame 2. Rotation of the turret is effected by turning a handwheel 6, the motion being transmitted to the turret through a worm 3 and worm wheel 4. A handle 27 is formed integrally with a sector-shaped member 28 secured to the turret shaft; turning of the handle rotates the shaft and thereby moves the turret laterally, a clamping pin 31 co-operating with a slot 29 in the member 28 to secure the shaft in any given position. Each inking mechanism comprises a drum 9 to which ink may be applied by a pallette knife or other means, an axially reciprocating roller 11 which serves to spread the ink thereon, and two forme rollers 23 which transfer the ink from the drum 9 to the plate on the plate cylinder 22. The roller 11 is reciprocated by a rocking arm 12 coupled at one end 13 to the roller 11 and having at its other end a cam follower co-operating with a face cam 16 secured to a gear 17. The gear 17 is rigid with the drum 9 and is driven by another gear 18 mounted on the turret for co-operation with either a gear 21 mounted on the plate cylinder 22 which is driven by a motor 26 or with a gear 19 driven by a motor 20. When the handle 27 has been operated to move the turret clear of the plate cylinder 22 the turret can be rotated so as to bring the gear 18 of any of the inking mechanisms into engagement with the gear 19 at which position the drum 9 is inked. The turret is then rotated so as to bring the inked mechanism to a position adjacent to the plate cylinder and the handle 27 is again operated so as to bring the gears 18, 21 into mesh and the rollers 23 into contact with the plate, an adjustable stop 32 being provided for the handle so that the correct position of en-. gagement may be quickly found. A spring-loaded plunger 7 on the frame 2 engages a hole 8 in the turret to lock the turret. The plate cylinder co-operates with an impression cylinder 24. In a modification the turret shaft is not mounted eccentrically and a flat is provided on the plate cylinder between the ends of the plate so as to allow the turret to be rotated.
Patent GB-645234-A (GB)
Title: Helicopters
IPC: B64C27/54
Filed: 1948-06-03
Abstract: 645,234. Helicopters. UNITED HELICOPTERS, Inc. June 3, 1948, No. 15004. Convention date, June 3, 1947. [Class 4] The cyclic pitch adjustment of the blades of a helicopter rotor is effected by a servo control rotor, the blades of which are subject to cyclic pitch control initiated by the pilot. As shown, the main rotor comprises two non-articulated blades 21, the hub 19 being carried on the drive shaft 22 by a universal mounting, the axes of which are parallel and perpendicular to the longitudinal axes of the blades, and the servo rotor comprises two small blades 56 disposed below and perpendicular to the blades 21. The pitch setting of the servo blades 56 is controlled by a gimbal ring 81 connected by links 80 to a pilot-controlled ring 68. Inclination of the servo rotor tip path plane consequent upon unequal pitch settings of the blades 56 is communicated to the main rotor pitch control arms 79 by links 80<SP>1</SP>. Collective pitch control of the main rotor blades is effected by axial movement of the control ring 81 along the drive shaft 22. Fig. 9 shows the control arrangement for a helicopter with co-axial contrarotating rotors 21, 21a, the collective pitch of the blades being varied by a vertically-movable axial rod 82 inside the drive shaft 22. Such an arrangement may also be used for collective pitch control of a single rotor, Fig. 8 (not shown).
Patent GB-553545-A (GB)
Title: Improvements in or relating to the impregnation of organic fibrous materials with polystyrene
IPC: H01B3/50
Filed: 1941-11-21
Abstract: 553,545. Polystyrene compositions STANDARD TELEPHONES & CABLES, Ltd. NEW. A. A., and FOORD, S. G. Nov. 21, 1941, No. 15005. [Class 2 (iii)] [Also in Group VIII] Organic fibrous material such as paper is impregnated with polystyrene or plasticized polystyrene containing at least 46 per cent. polystyrene at an elevated temperature not exceeding 250‹C., the polystyrene mixture having a sufficiently low viscosity at that temperature to permit satisfactory impregnation, and treating the material during or after impregnation so that on cooling to normal temperature the viscosity of the impregnant in the material is greater than 10<SP>6</SP> poises. The viscosity-temperature characteristic of the mixture may be such that the viscosity is sufficiently high at room temperature and sufficiently low at the temperature of impregnation, in which case the material is cooled in air after impregnation before being wound up in roll form for storage. Alternatively the polystyrene mixture contains a solvent having a boiling point not lower than the temperature of impregnation and the impregnation, and in some cases the subsequent heating, takes place under such conditions that sufficient of the solvent is evaporated so that the impregnant left in the material has a sufficiently high viscosity. Examples of suitable compositions are (1) 90 per cent. polystyrene (molecular weight 80,000) and 10 per cent. α-isoamylnaphthalene, polymerized α-methyl styrene, diphenylmethane, 1, 1-di-p-tolylethane or the plasticizers described in Specification 490,814; (2) 60 per cent. polystyrene and 40 per cent. polymerized α-methyl styrene (molecular weight 350) ; (3) 75 per cent. polystyrene and 25 per cent. diphenyl methane ; (4) 80 per cent. polystyrene and 20 per cent. of 1, 1-di-ptolyethane ; (5) 60 per cent. polystyrene, 10 per cent. 1, 1-di-p-tolyethane and 30 per cent. of 1, 2, 3, 4-tetrahydronaphthalene ; (6) 50 per cent. polystyrene, 5 per cent. ethyl oleate and 45 per cent. of 1, 2, 3, 4-tetrahydronaphthalene ; (7) 35 per cent. polystyrene, 40 per cent. polymerized α-methyl styrene and 25 per cent. 1, 2, 3, 4-tetrahydronaphthalene. Tertiary butyl xylene or xylene may be used in place of 1, 2, 3, 4-tetrahydronaphthalene. Specifications 454,923 and 509,836 are referred to.
Patent GB-924673-A (GB)
Title: A snow remover
IPC: E01H5/09
Filed: 1959-05-02
Abstract: 924,673. Snow-removing apparatus. A. LAMY, and U. BOISVERT. May 2, 1959, No. 15063/59. Class 107. In a snow-removing apparatus, the snow and ice are broken down and fed to impelleroperated discharge means. An open-fronted snow-receiving casing 1 is propelled in front of a prime mover and provided with a circular opening 3 in its back wall which leads to a rotary impeller for ejecting snow through an orientable shoot 4. The casing supports two horizontal shafts 2 which extend in front of the opening 3 and are rotated by power means (not shown). The shafts are provided with elongated parallel sided radial blades 5 in front of the opening 3 and sector-shaped blades 6 attached to the remainder of the shafts. The leading edges of blades 6 are in planes perpendicular to the shaft and their trailing edges are inclined towards the impeller opening. The radially outer leading edges of the lower set of blades are provided with detachable teeth or hammers 7. In operation, the hammers and leading edges of the blades break up any hard packed snow, ice or stones and the inclined blades act as an interrupted screw for laterally feeding the snow to the impeller opening. If the hammers encounter a large stone which cannot be broken they lift the base of the casing over the top of the stone.