baber/WOPTO huggingface dataset:
Patent GB-391240-A (GB)
Title: Improvements in classifiers
IPC: B03B5/58
Filed: 1931-11-18
Abstract: 391,240. Gravity separation apparatus. DORR CO., Inc., 247, Park Avenue, New York, U.S.A. Nov. 18, 1931, No. 31962. Convention date, Nov. 18, 1930. [Class 46.] A bowl classifier comprises a settling chamber of varying depth having a plurality of scrapers rigidly connected to an arm or sweep positioned above the liquid level, the scrapers having their upper edges in a horizontal plane and varying in height with the depth of the chamber. In the form shown a flat conical bowl 1 having an opening 3 at its lowest point is mounted above a secondary classifier 2 of known type containing a reciprocating rake 5, an upward current being produced through the opening 3 by the introduction of liquid into the secondary classifier 2 through an inlet pipe 45. A motor 15 on a framework 14 mounted above the bowl 1 drives a vertical shaft 16 carrying radial arms 17 which are positioned above the liquid level in the bowl and are connected to scrapers 18 by brackets 19 preferably of I-beam construction so that the edges of the brackets cut the surface as the arms revolve and produce a slight surface agitation. The scrapers 18 have their upper edges in a horizontal plane below the liquid level and increase in height from the periphery of the bowl to the centre, the bottom edges lying adjacent the bottom of the bowl. The material to be treated is supplied in suspension to an annular feed well 24 through a tangentially disposed inlet pipe 23 and passes through perforations 25 in the bottom of the well on to a circular distributing plate 26 mounted on the upper edges of the radial arms 17. The distributing plate 26 is joined by a wall 28 to an apron 29 having a weir 30 spaced from its edge, a baffle ring 32 being provided to direct the suspension into the annular space between the wall 28 and the weir 30, from which it overflows the weir 30 and flows radially over the edge of the apron intc the bowl. The apron 29 is positioned slightly below the fluid level in the bowl. The lighter particles flow over an adjustable weir 20, formed by a rubber band secured round the upper edge of the bowl, into a circular launder 21. The heavier particles settle and are carried by the scrapers to the outlet 3, whence they pass intc the chamber 2 and are removed by the rake 5. The outlet 3 is provided with gates 34 sliding in guides 33, Fig. 4, so that the size of the opening may be adjusted. The position of the scrapers may be adjusted by raising or lowering the shaft 16 by means of a wheel nut 46
Patent GB-606494-A (GB)
Title: Improvements in and relating to nozzles for use in filling tanks and other containers with liquid
IPC: F16K31/20
Filed: 1939-12-11
Abstract: 606,494. Float-actuated valves. MULLER, J. Dec. 11, 1939, No. 31969. Convention date, Dec. 10, 1938. [Class 135] [Also in Group XVII] A filling nozzle for tanks having an inlet 29 for the attachment of a supply hose and an outlet tube 14 for insertion in the tank, includes a spring-loaded inlet valve 4 connected by a link 5 to one arm 3 of a control lever secured to a shaft 2 carrying an operating- lever I and having a second arm 3a coacting with a spring-catch 9, one end of which abuts against a push-rod 10 adapted to be raised by a float 12 to disengage the catch from the arm 3a and permit automatic closure of the valve 4 when the level in the tank reaches a predetermined level. The level is set by the position of a-collar 21 on the tube 14. .
Patent GB-864733-A (GB)
Title: Improvements in or relating to folding caravans
Inventor: PARFORD ERNEST KINGDOM
IPC: B60P3/34
Filed: 1958-10-07
Abstract: 864,733. Collapsible caravans. HARRIS LEBUS Ltd. Oct, 7, 1959 [Oct. 7, 1958], No. 32002/58. Class 108(1). A collapsible caravan comprises a body part 10, Fig. 1, hinged at 12 to a wheeled body part 11, and having side walls 19 joined by walls 21, 22. In the expanded position, Fig. 3, the wall 21 forms a continuation of the roof 15 and the draw bars 23 are released from their brackets 24 beneath the body part 11 to pivot with; the body part 10 and form with legs 31 a forward end support. Triangular panels 26 of wood or metal hinged at 27 are provided to close the gap between the body parts, and a bottom 29 and sides 30 of canvas which may be lifted into the caravan body by a winch or rope are also provided. In a modification the gap between the parts 10, 11 may be closed by a canvas curtain provided with a retractable well portion such as 29, 30, and a slit entrance. In a further modification the means for closing the gap may be constructed to provide a lean-to type of structure supported by ridge and end poles and guy ropes. In another embodiment, the side walls of the parts 10, 11 overlap one another when the caravan is collapsed, the edges being adjacent to one another when the caravan is expanded.
Patent GB-910291-A (GB)
Title: Improvements in or relating to a microscope objective
Inventor: LUNN ALICK THOMPSON
IPC: G02B21/02
Filed: 1959-09-21
Abstract: 910,291. Microscope objectives. COOKE, TROUGHTON & SIMMS Ltd. July 29, 1960 [Sept. 21, 1959], No. 32095/59. Class 97 (1). A flat field microscope objective comprises a thick meniscus lens having a Petzval sum not greater than zero and disposed adjacent thereto a convergent doublet lens having a cemented surface which is convex towards the meniscus lens and is adapted substantially to correct the axial chromatic aberration and astigmatism introduced by the thick meniscus, the objective being furthermore provided with positive and negative singlet lenses which are spaced apart by less than one-twentiethof the objective focal length and adapted to correct residual aberrations, the negative singlet lens being disposed nearest to the image plane of the microscope. Optical data are given in the Specification for one example of the objective shown.
Patent GB-843963-A (GB)
Title: Improvements in or relating to gas discharge apparatus
Inventor: THONEMANN PETER CLIVE
IPC: H05H1/12
Filed: 1957-10-15
Abstract: 843,963. Nuclear fusion reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Oct. 9, 1958 [Oct. 15, 1957], No. 32245/57. Class 39(4). A gas discharge apparatus of the type wherein a pulsed ring discharge is induced in gas in a torus having a thick electrically conducting wall, is characterised in that the inner wall of the torus has an electrical resistance in the direction of the continuous axis of the torus greater than that of the outer wall, whereby the eddy currents induced by the discharge are larger in the outer wall than in the inner wall and the equilibrium axis of the current channel remains closer to the continuous axis of the torus. The increase in resistance of the inner wall may be effected by forming a plurality of transverse slots 2 in it, the slots being sealed with insulating material or bridged by thin metal sheet so that the torus remains vacuum tight. Alternatively, the torus may be made in two half sections welded along the lines A-A, B-B in the Figure, the outer half being of thick aluminium and the inner half of stainless steel. Specification 830,252 is referred to.
Patent GB-912478-A (GB)
Title: Improvements in methods and apparatus for liquefying gases
Inventor: SEDDON WILLIAM LESLIE
IPC: F25J1/02
Filed: 1957-10-15
Abstract: 912,478. Gas liquefaction processes. PETROCARBON DEVELOPMENTS Ltd. Jan. 15 1959 [Oct. 15, 1957], No. 32265/57. Class 8(2). Gas e.g. hydrogen is liquefied by passing it at between 5 and 20 atmospheres pressure and at about 70‹K through a plurality of heat exchangers 11...18 in series and finally expanding at a valve 19 into a container 20; each of the heat exchangers being cooled by countercurrent flow of a separate stream of the gas cooled by expansion at an associated turbine 11b . . . 18b at a pressure e.g. 2À5 atmospheres which is below that of the gas stream undergoing liquefaction. The coolant circuits are in parallel fed from a common discharge line of a turbine 22 and exhausting into a record common line passing through a heat exchanger 21 serving to precool hydrogen entering said turbine 22. Also feed hydrogen to the turbines 12b . . . 18b is cooled in exchangers 12a ... 18a traversed by hydrogen leaving the warm ends of associated exchangers 12 . . . 18. In a modification the heat exchangers traversed by the hydrogen to be liquefied are additionally cooled by the unliquefied portion of the hydrogen leaving the expansion valve and the exchangers corresponding to 12a... 18a are arranged in series with the feeds to the associated turbines being taken off in parallel.
Patent GB-897488-A (GB)
Title: New anthraquinone dyestuffs and process for their manufacture
IPC: C09B1/46
Filed: 1960-05-05
Abstract: Plasticized polyvinyl chloride is pigmented with a dye of the formula:-  <FORM:0897488/IV (a)/1> where X is hydrogen, halogen, hydroxyl, alkoxy, aroylamino or a group of the formula:- <FORM:0897488/IV (a)/2>ALSO:The invention comprises anthraquinone dyestuffs of the formula <FORM:0897488/IV (c)/1> where X is hydrogen, halogen, hydroxyl, alkoxy, aroylamino or a residue of the formula <FORM:0897488/IV (c)/2> The dyes are made by condensing at an elevated temperature a compound of the formula <FORM:0897488/IV (c)/3> where Y is hydrogen, halogen, hydroxyl, alkoxy, amino or aroylamino, with a compound of the formula <FORM:0897488/IV (c)/4> where Z is halogen or amino, for each amino group of the formula (3) one molar proportion of the compound of the formula (4) being used, the condensation product, if it still contains halogen attached to the cyanuric acid residue, being reacted at an elevated temperature with ammonia.  The dyes are pigments for polyvinyl chloride (see Group IV (a)). p
Patent GB-341571-A (GB)
Title: Improvements in and relating to inking mechanism of printing presses
IPC: B41F31/30
Filed: 1929-10-25
Abstract: 341,571. Printing-machines. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Wood Newspaper Machinery Corporation ; 501, 5th Avenue, New York, U.S.A.) Oct. 25, 1929, No. 32503. [Class 100 (ii).] Inking - apparatus.-Ink is transferred continuously from a fountain roll to an ink-drum rotating at a different speed by a roller having a resilient or relatively soft surface and driven from the ink-drum. As shown, the ink-drum 13 and fountain roller 17 are driven positively in opposite directions, the roller 17 at a slower speed than the drum 13. The pick-up roller 20 having a surface of rubber, felt, roller composition, or other resilient material contacts with the drum 13 and roller 17 and is driven by the drum so that the contacting surfaces of the rollers 17, 20 move in opposite directions. The roller 20 is mounted on bearing blocks 22 connected by screwed studs 23 to arms 24 hung on the bearings of the drum 13, the studs being rotatable by means of collars 27 to adjust the roller 20 relatively to the drum 13. Adjustment of the roller 20 relatively to the roller 17 can be effected by screws 29 journalled in poppets 30 on the machine frame and threaded into the bearing blocks 22. A scraperblade 19 for the roller 17 is provided with adjusting means 16 located on the outside of the outside of the inking-mechanism.
Patent GB-482389-A (GB)
Title: Improvements in and relating to gyroscopic apparatus
IPC: G01C19/00
Filed: 1936-11-27
Abstract: 482,389. Gyroscopic apparatus. SIEMENS APPARATE UND MASCHINEN GES. Nov. 27, 1936, No. 32544. [Class 97 (iii)] Torques are applied to a gyroscope about a pivot axis in order to produce procession about a second axis by a magnet fixed to the first axis and influenced by a fixed coil, which has two differentially energized opposed windings and extends its effective field of force over the path of movement of the first axis. Alternatively the coil may be fixed to the first axis and co-operate with a fixed, annular, permanent magnet. In the aircraft course control gyroscope shown, the rotor spins about an axis 2 in a casing 1, which pivots about a horizontal axis 4 in a ring 5, pivoting in turn about a vertical axis 6 in brackets 7, 8 fixed to the aircraft. A coil 10 coaxial with the axis 6 and fixed to the aircraft co-operates with a magnet 9 fixed to the spindle 4 in all positions of the latter and causes precession of the gyro about the axis 6. The energization of the two superposed windings 11, 12, of the coil 10 is controlled by variations in the electrolytic resistance between an electrode 14 carried by a magnetic needle and electrodes 15, 16 carried by the compass bowl, which may be adjusted for course control by the crank 19. A contact arm 26 carried by the vertical spindle 6 controls a rotary magnet 30 which adjusts the control valve 34 of a fluid pressure servomotor 39 operating the rudder 41.
Patent GB-709698-A (GB)
Title: Mechanism and method for coiling cold rolled strip or the like
IPC: B21C47/04
Filed: 1952-12-23
Abstract: 709,698. Winding and reeling. SANDVIKENS JERNVERKS AKTIEBOLAG. Dec. 23, 1952 [Dec. 28, 1951], No. 32628/52. Class 83 (4) To prevent coiled strip S, from unwinding from a reel 12 it is passed through rolls 13, 14, 15 which bend it to the curvature of the coil. The reel is positively rotated and the bending rolls are idle. The roll 15 is mounted on a lever 16 adjusted by a fluid cylinder 17 to vary the degree of bend. At the beginning of a coiling operation the roll 15 is separated from the rolls 13, 14 and the first part of the strip is coiled without bending. The roll 15 is then engaged with the strip to bend the outside layers.
Patent GB-954860-A (GB)
Title: Process for the manufacture of polyacrylonitrile fibers
IPC: D01F6/18
Filed: 1961-09-12
Abstract: 954,860. Polyacrylonitrile filaments. TOHO RAYON KABUSHIKI KAISHA. Sept. 12, 1961 [Sept. 24, 1960], No. 32636/61. Heading B5B. A coagulated tow of polyacrylonitrile filaments, spun from a solution of polymer comprising mainly polyacrylonitrile in an aqueous spinning solvent comprising zinc chloride as the principal salt constituent, is contacted at 70- 100‹ C. with a 1-20% by weight aqueous solution of a compound which will react with zinc ions to produce complex ions Preferably the tow is contacted at 90-100‹ C. with a 5-15% by weight aqueous solution of the compound producing complex ions. Compounds specified include sodium chloride, potassium chloride, ammonium chloride, urea, and thiourea. After leaving the coagulating bath, the tow may be stretched at a moderate temperature, e.g. in water or a humid atmosphere and then immersed in an aqueous bath containing the desalting compound. Zinc compounds otherwise retained in the tow thereby diffuse and dissolve out into the solution as water-soluble complex ions. Specification 732,008 is referred to.
Patent GB-211957-A (GB)
Title: Improvements in or relating to chains, belts and the like
IPC: F16G1/24
Filed: 1922-11-29
Abstract: 211,957. Camp & Co., Ltd., Perl, A. H. F., and Carter, R. H. Nov. 29, 1922. Bands of the kind composed of links each T-shaped at one end 3 to enable it to be engaged in a slot 7 in the adjacent link are provided with tongues 6 lo prevent accidental disengagement of the links. The links may be formed of celluloid, vulcanite, ebony, leather &c., and when made of flexible material this may be faced with metal, and the openings in flexible links may be formed by two slits at right-angles.
Patent GB-956532-A (GB)
Title: Improved motor vehicle suspension system
IPC: B60G7/02
Filed: 1962-08-24
Abstract: 956,532. Road vehicle suspensions. FORD MOTOR CO. Ltd. Aug. 24, 1962 [Sept. 13, 1961], No. 32666/62. Heading B7D. In a motor vehicle suspension there is provided spring means operative in a longitudinal direction and having two stages of resistance. As shown, the suspension comprises pivot arms 13 and 14 and a wheel supporting spindle 17. The inboard pivot 18 for the arm 14 comprises a resilient bush affording lateral pivoting movement of the arm 14 opposed by a strut 23 rigidly connected to the arm 14 and having a resilient connection, Fig. 2, to a bracket 24 carried by the vehicle body or frame. The bracket 24 has two load-bearing flanges 35 through which the strut 23 passes, lateral forces being transmitted through a nut 29, shoulder 27, washers 28 and 32, and a pair of resilient pucks 25, 26 which are not preloaded. A resilient puck 33 of low rate is positioned above the bracket 24 and a flexible cable 34 is secured to a ball 37 bearing upon a plate 38 and a threaded cylindrical member 39, by means of a nut 41 upon which the puck 33 is preloaded, the cable 34 passing through a chamfered hole 36 in the strut 23. Light lateral loads on the suspension are cushioned by the puck 33, the strut 23 acting through the cable 34. Heavier loads due to braking are cushioned by the pucks 25 and 26.
Patent GB-254983-A (GB)
Title: Electric condensers
IPC: H01G5/06
Filed: 1925-12-28
Abstract: 254,983. Webster, B. R. Dec. 28, 1925. Condensers comprise a group of fixed plates 1 assembled in slots in sleeves 2, and a group of moving plates 9 slipped on a shaft 10 and clamped between nuts or abutments 12, 13. The shaft has a conical part 16 engaging a similar part in an end thrust bearing 15, and at the other end turns in a split sleeve bearing 17, between which and the nut 13 is a washer 18. The shaft is maintained in engagement with the bearing 15 by means of a split spring ring 19 engaging the tapered surfaces 13<1>, 18<1>, and its axial position is adjusted by screwing the bearing 15 into or out of the end plate and locking it by means of a nut 15<1>, the ring 19 accommodating itself to the changed position.
Patent GB-327594-A (GB)
Abstract: 327,594. Courtney, J. C. F., Willett, W., Coombes, W. E., and Coombes, H. April 23, 1929. Autographic cash recorders.-A check-till is provided with the following three features. (1) The winding-off roll 2 is mounted in slots 13 in a pair of brackets 10 secured to the cover 1. The ends of the roll spindle are reduced to be received each by an aperture in a blade spring 14 pivoted to the bracket. The spring serves also as a brake by pressing upon the shoulder of the reduced end. The winding-on roll 4 is similarly mounted at one end but at the other end it has a bearing in a fixed bracket. (2) The writing platen 18 consists of an #-shaped metal plate ridged at 19 to register with slots 20 in the brackets 10. (3) The winding-on roll is advanced by ratchet-and-pawl mechanism, the pawl 23 being carried by a spring-controlled lever 22 pivoted on the roll spindle. The lever is oscillated at each opening of the drawer by engagement of the drawer with a one-way dog 24 pivotally mounted in the lever and hanging vertically by its own weight.
Patent GB-500452-A (GB)
Title: Comb mechanism for hopper feeders or opening machines for fibrous material
IPC: D01G9/16
Filed: 1937-11-27
Abstract: 500,452. Hopper feeders or openers for fibrous material. TATHAM, Ltd., W., and THORNTON, H. Nov. 27, 1937, No. 32768. [Class 120 (i)] In a rotary combing mechanism for hopper feeders or openers for treating fibrous material, comprising a number of combs mounted in rotatable supports, an adjustable eccentric member is provided and is so disposed that the comb teeth are at all times presented at the same angle. As applied to the comb mounted in front of and adjacent to the upper end of the lifting lattice of a hopper feeder, the reduced ends c<1> of four comb bars c having spikes or teeth c<2> are mounted in end supports or discs b fixed to the cross shaft a. A ring d is mounted eccentrically on a boss a<7> mounted on the shaft a, and on two anti-friction rollers a<6> adjustably secured by studs a<4> in slots a<3> in a bracket a<2>' and the ring d is bored to receive the pivots e<1> of four cranks e which are interposed between the ring d and the adjacent disc b, the other ends of the cranks e being mounted on the ends c<1> of the bars c. The throw of the cranks e is equal to the distance between the centre of the shaft a and the centre o of the disc d. In operation, the disc b, d revolve about their respective centres a, o and the teeth c<2> move in their circular path but are always disposed at the same angle. The angular setting of the teeth is adjusted by means of the slots a<3>.
Patent GB-1359886-A (GB)
Title: Process for rendering cellulose containing fabrics flame-retardant
IPC: D06M15/433
Filed: 1971-07-13
Abstract: 1359886 Phosphoramide-modified MF solutions and condensates J P STEVENS & CO Inc 13 July 1971 [5 Aug 1970] 32798/71 Heading C3R [Also in Division D1] An aqueous solution for rendering cellulosecontaining fabric flame-retardant contains (a) a melamine derivative of Formula I where R 1  is H or -CH 2 OZ with Z being H or alkyl (1-4 C), provided that at least two of the R 1  groups are -CH 2 OZ; (b) a phosphoric amide of formula O = P(NHR) 3  where R is alkyl (1-4 C), more than one mole of melamine derivative being used for each mole of phosphoric amide, and (c) 0À05-1À5% OWF (on the weight of fabric) of a catalyst which is an acid, a salt forming an acid in aqueous solution, or an oxidizing agent, or 1À0-6À0% OWF of a catalyst which is an alkali metal chloride, bromide, iodide or nitrate, is applied to the fabric and cured at 60-210‹ C. to form an insoluble product having an N/P weight ratio #5 : 1 and a phosphorus content of at least 0À6% based on the finished fabric. Where durability to laundering is required, amount of insoluble product formed is at least 14% on the weight of the fabric after a hot process wash. Specified reactants are trimethylolmelamine and N,N<SP>1</SP>,N<SP>11</SP>-trimethylphosphoric triamide or N,N<SP>1</SP>,N<SP>11</SP>-triethylphosphoric triamide. Specified catalysts are hydrochloric acid, methylamine hydrochloride, 2-amino-2-methyl-1-propanol hydrochloride, nitrilotriethanol hydrochloride, ammonium tartrate, citrate, oxalate, formate, nitrate or dihydrogen phosphate, magnesium nitrate or chloride, zinc nitrate or chloride, hydrogen peroxide, alkali metal or ammonium peroxymonosulphate, potassium or ammonium peroxydisulphate, LiNO 3 ; NaNO 3 ; KNO 3 ; LiCl; LiBr; LiI; NaCl; NaBr; NaI; KCl; KBr; KI; RbCl; RbBr; and CsI.
Patent GB-281722-A (GB)
Title: Improvements in boiler feed water supply systems
IPC: F22D1/32
Filed: 1927-12-05
Abstract: 281,722. Akt.-Ges. Brown, Boveri, et Cie. Dec. 3, 1926, [Convention date]. Feedwater, supplying. - In a feed-supply system comprising a closed vessel 7 placed between the condenser pump 4 and the boiler feed pump 8 for balancing differences between the quantities of water delivered by the pumps, additional water is supplied to the condenser 3 from a tank 9, when the water in the vessel falls below a certain level. The supply of additional water is controlled by a float 10 in a chamber in free communication with the balancing vessel. The feedwater is passed through heaters 5, 6 heated by tapped steam before entering the balancing vessel. The distribution of additional water to the respective condensers of a. number of turbines connected in parallel is controlled in dependence on the various loads on the turbines.
Patent GB-1516598-A (GB)
Title: Plastics extrudate calibration method
IPC: B29C48/90
Filed: 1976-08-06
Abstract: 1516598 Window frames DYNAMIT NOBEL AG 6 Aug 1976 [7 Aug 1975] 32950/76 Heading E1J [Also in Division B5] An extruded window frame section, shown in Fig. 2 being drawn through a sizing die 3a, 3b, 3c, 3d located downstream of the extruder, comprises a body portion 2a of rigid P.V.C. having a simultaneously extruded coating 2b of polymethylmethacrylate around the part of its periphery which is exposed to weathering in use. The section also comprises a plurality of bores 2c. The section passing through the sizing die (see Division B4-5) is cooled at a slower rate in the region of its exterior surface corresponding to the coating of polymethylmethacrylate, than in the region corresponding to the P.V.C. which hardens at a lower temperature, so that the body portion and coating harden simultaneously and avoid stresses which would other wise be set into the polymethylmethacrylate, by its earlier hardening in being drawn through the sizing die.