baber/WOPTO huggingface dataset:
Patent GB-1510676-A (GB)
Title: Process for extraction of metals
IPC: C22B47/00
Filed: 1975-06-18
Abstract: 1510676 Extraction of metals H CRONJAGER 18 June 1975 25971/75 Heading CIA A carrier material is leached with an aqueous solution of an alkali metal chloride and/or magnesium chloride of total chloride-concentration equivalent to 50-350 grams/litre of NaCl, and nitric acid of concentration in the solution of 3-50% by weight at a temperature of 20-110‹C. The carrier material may be primary or secondary ore, manganese nodules, thermal leaching sediment, metallurgical intermediate products and industrial waste, and the metals to be extracted therefrom are preferably non-ferrous metals such as copper, nickel, zinc, cobalt, tin, uranium, gold, and platinum metals. For a continuous extraction process, the used leaching solution and steam condensate are regenerated and recirculated. The leaching solution may be adjusted to requisite H<SP>+</SP>, Cl<SP>-</SP>, and NO 3 <SP>-</SP> ion-concentrations prior to the leaching step by appropriate comminution of the solution components by automatic means. The leaching is suitably performed for 0À5-5À0 hours, with agitation of the solution. The alkali metal chloride or the nitric acid may be contained in the carrier material.
Patent GB-628238-A (GB)
Title: An improved flexible pipe joint
IPC: F16L51/02
Filed: 1947-09-25
Abstract: 628,238. Pipe joints. STANDARD OIL DEVELOPMENT CO. Sept. 25, 1947, No. 26077. Convention date, Dec. 26, 1946. [Class 99(i)] A joint permitting longitudinal, lateral and misalignment changes consists of a bellows element 20 joining pipes 10 and 11 and enclosing a liner 21 which is of smaller diameter than the pipes and is fixed to the end of pipe 10. A ring 23 is placed over the free end of the liner and projects into a pocket 24 in the pipe 11. Steam from an inlet 25 passes through a clearance in, and around, the ring 23 to the pipe 11 and prevents clogging of the joint. In a modification, Fig. 2, the liner 21 may be outside the bellows 20 and the whole enclosed by a casing 27.
Patent GB-1414612-A (GB)
Title: 3-ketoglutaric acid
IPC: C07C59/265
Filed: 1974-06-12
Abstract: 1414612 3-Keto-glutaric acid MONT EDISON SpA 12 June 1974 [20 June 1973] 26085/74 Heading C2C In the preparation of 3-keto-glutaric acid by carboxylation of acetone in the presence of an alkali metal phenate and an alkyl ether of a polyethylene glycol R-O-(-CH 2 -CH 2 -O-)- n R, where R is alkyl 1-4 C, and n an integer 1-10, the reaction mixture is degassed from carbon dioxide dissolved and/or complexed with the alkali metal phenate by the addition of at least a stoichiometric quantity of phenol, under vacuum. The aqueous solution is acidified and extracted with diethyl ether to obtain the acid. Tetrapolyethylene glycol in which n is 4 and the R is methyl, is preferred. Citric acid may be prepared by cyanuration of the sodium salt, hydrolysis of the cyanhydrin and neutralization followed by extraction and crystallization.
Patent GB-860403-A (GB)
Title: Improved heat exchanger tube
Inventor: BENNETT MALCOLM JAMES
IPC: F28F1/08
Filed: 1958-08-14
Abstract: 860,403. Tubular heat exchange elements. LAWRENCE HOLDINGS (OVERSEAS) Ltd. Aug. 7, 1959 [Aug. 14, 1958], No. 26180/58. Class 64(3) A heat exchanger tube is formed along at least part of its length with a plurality of adjoining sections S which taper in the same direction and have a minimum diameter which is approximately half their maximum diameter, the length of the sections being four to ten times their maximum diameter. The tube has a uniform diameter portion where it is secured to a baffle plate, and the section S may be curvilinearly tapered.
Patent GB-144545-A (GB)
Title: Improvements in machines for straightening wire
IPC: B21F1/02
Filed: 1919-10-25
Abstract: 144,545. Sorensen, M. M. Oct. 25, 1919. Straightening. - A machine for straightening long or short lengths of wire such as lasting wires which have been inserted in boots, as described in Specification 9845/15, [Class 17 (i), Boots &c., Apparatus for &c.], and are to be removed and straightened for further use, consists of a rest for the object carrying the wire, a straightening member and a rotating tension member to which one end of the wire is secured. The last is placed on the pin 6 when the front lasting wire is to be removed and straightened and on a vertical pin when the counter wire is to be operated on, the vertical pin being mounted on a pivot so that it can be turned down out of the way. The wire is passed through straightening pins 8, and one end is secured by cam lever 17 to the face of the tension wheel 13, the cam lever being normally held by a spring 18 in the closed position, and being opened by engaging a pin 19 in the framing so that the wires may be released after straightening and drop into a receptacle. The wheel is rotated by worm gear from the shaft 10, a friction clutch 23 on the shaft 9 being put in by a spring released forked lever 25 operated by a treadle lever 28, through arms 27, 24 on the shaft 11. The front part 128 of the treadle lever is mounted on a pivot 29, so that, when the treadle is depressed, this part is pulled by a spring 30 into the horizontal part of an L-shaped slot in the framing so as to retain the lever in the depressed position. This part 128 is connected by a rod 31 and arm 32 to a shaft 12 having a second arm 33 engaging the face of the wheel 13 so that, at the end of one revolution of the wheel, a projection 34 thereon engages the arm 33 so as to move back the part 128 and thus allow the clutch to be released. The wheel may then be held fast by a pin 35 on the lever 25, entering a hole 36 in the wheel.
Patent GB-408520-A (GB)
Title: An improved method of and apparatus for the dry cooling of coke
IPC: C10B39/02
Filed: 1933-09-25
Abstract: 408,520. Cooling coke. SULZER FRERES SOC. ANON., Winterthur, Switzerland. Sept. 25, 1933, No. 26355. Convention date, Nov. 23, 1932. [Class 51 (ii).] In the dry cooling of coke by the passage therethrough of air or gas which has previously flowed over the walls of the coke container, the latter is in the form of an open-topped wheeled truck a adapted to be moved into a position, within the cooling chamber d, in which its open top makes a gas-tight joint with members e projecting inwardly from the walls of the chamber and fitted with packing glands h. The cooling gas, which is continuously circulated by a fan b, enters through inlets f and, after flowing downwardly over the walls of the truck a, passes upwardly through the coke to a water-tube boiler c mounted in the upper part of the chamber d. Fig. 3 shows a modification in which the truck a has double walls with vertical baffles therebetween, the latter causing the cooling gas to flow in a zig-zag course in contact with the inner wall before passing up through the coke to the boiler c. The gas enters through an opening in the outer wall which, when the truck is moved into position, is automatically engaged by a flexible pipe l having a flange k pressed against the inlet by a spring m.
Patent GB-375629-A (GB)
Title: Improvements in or relating to modulated carrier transmitting systems
IPC: H03F1/33
Filed: 1931-09-21
Abstract: 375,629. Valve modulating circuits. SOC. FRANCAISE RADIO-ELECTRIQUE, 79, Boulevard Haussmann, Paris. Sept. 21, 1931, No. 26370. Convention date, Sept. 27, 1930. [Class 40 (v).] In a radio transmitter, undesired variations in the high-tension supply to the last stages due to the varying load thereon are compensated by applying variations in the opposite sense to the grids of pre-modulation lowfrequency amplifiers. As shown in the Figure, the signal voltages are applied at 1, 1<1> through a transformer 3 to the grids of push-pull amplifiers V1, V2, the output from which is taken from transformer 5, and applied to the modulator 12. Compensating voltages are applied to the grids in phase agreement by means of a tapping on a resistance 4 across the grids. These voltages are derived from a potentiometer 7 connected across a transformer 8, the primary of which is connected across a small resistance 9 connected in series with a larger resistance and a voltmeter V across the H.T. supply to the last amplifier stages 13 of the radio transmitter. As shown, the H.T. supply comprises a rectifier 14, series inductance 15 and shunt condenser 16. The output from valves V1' V2 may be taken through condensers, from an inductive potentiometer connected through condensers to the plates and filaments of the valves. An adjustable portion of the potentiometer may be short-circuited, and the plate voltage may be fed indirectly through resistances.
Patent GB-765592-A (GB)
Title: Improvements in or relating to means for screening and feeding materials into bags or other containers
IPC: B07B1/30
Filed: 1954-09-13
Abstract: 765,592. Sifting apparatus. McLAUGHLIN, R. A. July 27, 1955 [Sept. 13, 1954], No 26388/54. Class 117 A sieve tray 10 for the screening of nuts has handles 12 and is extended at 11 to form a shoot, and is manually reciprocated on runners secured to battens 20, 21 extending laterally from a wooden four-legged stand 16. Eyelets on the underside of the sieve tray hinge and slide on a bar 14 secured to the stand. After dust &c. has been removed from a supply of nuts fed to the sieve tray, and collected in a tray 24, the sieve tray is tilted about the bar 14 and the cleaned nuts are fed via the shoot in to a bag.
Patent GB-1082930-A (GB)
Title: Improvements relating to universal joints
Inventor: ADAMS FREDERICK JOHN
IPC: F16D3/41
Filed: 1965-06-22
Abstract: 1,082,930. Universal joints. CAM GEARS Ltd. Feb. 22, 1966 [June 22, 1965], No. 26438/65. Heading F2U. Each trunnion bearing 6 for the cross-pins 5 of a Hooke's joint is supported in its corresponding fork-end bore 10 by a bearing shell 11 which fits in the bore and is provided with radially extending securing means at the inner end of the bore to prevent relative centrifugal movement of the shell. In Figs. 1 and 6 (not shown), a plain bearing 6 or, bush (20), carrying a roller bearing (18) is externally slotted at 8 to allow passage of crimped tongues 14, (15), or (16), Figs. 3, 4 or 5 (not shown), on the shell 11 when assembled on the bearing, the tongues 14 snapping out to locate the shell on the inner fork end face. In Fig. 8 (not shown), each bearing shell is radially slotted at several points (43) through which a spring ring (44) projects at (44A) to locate the shell. In Fig. 7 (not shown), each bearing shell (33 or 35) is formed with an inner flange (33A) and is assembled with a plain bearing 34 in the fork-ends, plain and waisted trunnion crosspins (32, 31) then being assembled through the bearings to a block (30), one of each pair of shells (35) being open-ended for this assembly of the cross-pins after which a retaining disc (36) is fitted and retained by peening over the outer end of the shell (35).
Patent GB-1133913-A (GB)
Title: Reverse roll coating process and apparatus
IPC: D06B1/14
Filed: 1967-06-08
Abstract: 1,133,913. Web coating apparatus. CANADIAN INDUSTRIES Ltd. 8 June, 1967 [16 June, 1966], No. 26529/67. Heading D1L. Apparatus for continuously coating a web and for controlling the degree of penetration of the coating material comprises a continuously driven transfer roll 2 means to provide said roll with a uniform layer 6 of coating material at a predetermined thickness, a backing roll 3 to support and drive the web 4 to be coated and bring the surface thereof to a predetermined distance from the surface of transfer roll 2 to form a gap which substantially equals the thickness of the layer of coating material on the transfer roll plus the desired thickness of coating on the web minus the desired degree of penetration of the coating material into the web, and a scraper blade 7 inserted into the gap, the working edge thereof operating against the direction of the travelling coating layer on the transfer roll. The scraper blade may be combined with a doctor blade the working edge of which projects further into the gap than the working edge of the scraper blade whereby the scraper blade is prevented from contacting the surface of the web (Fig. 2, not shown) and the working edge of said doctor blade may be toothed, the teeth being long enough to project out of the pool of coating material formed in the nip between the web and the transfer roll, so as to produce stripes of coating material on the web. A further embodiment (Fig. 4, not shown) includes a doctor knife the working edge of which is substantially parallel to and faces the working edge of the doctor blade, the two edges being adjustable to a predetermined distance apart and forming a slit through which the coating material is extruded on to the web.
Patent GB-279817-A (GB)
Title: Exposure meter for photographic purposes
IPC: G01J1/50
Filed: 1927-10-07
Abstract: 279,817. Kehlstadt, H. Rikli-. Oct. 29, 1926, [Convention date]. Actinometers.-To obtain an accurate estimate of the average brightness of the field of view photographed, a test strip c or other testing device is housed within a case a, the front opening of which is such that the angle a subtended by the strip is the angle of view of the camera used, the strip being of comparatively small dimensions relative to the front opening. The casing may have a telescopic front b or an adjustable diaphragm, and a mirror e may be fitted outside this angle a for inspecting the darkening of the strip through an opening or lens f.
Patent GB-322025-A (GB)
Title: Improvements in and relating to systems for the electrical transmission of photographs and the like and for television
IPC: H04N5/067
Filed: 1928-09-17
Abstract: 322,025. Graham Amplion, Ltd., and Rickets, W. J. Sept. 17, 1928. Copying-telegraphs.-In a copying-telegraph or television system a single master station transmits synchronizing signals which are common to a plurality of sub-stations each of which transmits to satellite receivers picture signals alone or accompanied by signals due to a sound accompaniment. Specification 267,120 is referred to.
Patent GB-491826-A (GB)
Title: Improvements in or relating to materials for plugging walls, ceilings and the like
IPC: C04B28/14
Filed: 1937-10-01
Abstract: A material suitable for plugging walls, ceilings, and the like comprises a mixture of a rapidly binding substance, e.g. plaster of Paris, and at least 5 per cent and preferably between 5 and 20 per cent of glycerine.  The mixture is moistened with water and when set has a dense structure through retaining a plasticity sufficient to permit the introduction of a screw, nail or the like.  The composition may be modified by the addition of talc or graphite, or both.
Patent GB-1299617-A (GB)
Title: Vehicle seat construction
Inventor: DUDLEY RICHARD
IPC: A47C7/02
Filed: 1970-06-04
Abstract: 1299617 Upholstered seats VAUXHALL MOTORS Ltd 27 May 1971 [4 June 1970] 26989/70 Heading A4M A seat and/or back squab B, A comprises a sheet metal or plastics pan 1 on which are secured a plurality of foamed plastics pads 2-6A and/or 9-15, the pads and pan being provided with complementary projections and depressions to locate each pad relative to the pan. The pads may be secured to the pan by adhesive or by studs 7. The pads may be spaced apart to define channels 100, 101. Alternatively the pads may abut one another, the abutting edges defining ventilation grooves 16. A portion of the pan 1 may be cut away, as at 19, so that it comprises resilient cantilever portions to which the respective pads are secured. A seat back cover 17 is secured by snapping its edges 17A into a rebate 18 in edge pads 6.
Patent GB-151616-A (GB)
Title: Improvements in and connected with means for the lubrication of the cardan joints ofmotive power vehicles
IPC: B60R17/00
Filed: 1920-09-22
Abstract: 151,616. Grõf, K., Grõf, H., and Grõf, F. May 11, 1917, [Convention date]. No Patent granted (Sealing fee not paid). Force-feed lubricating.-Lubricant is delivered from a gear-box a of a motor-vehicle into a duct d in a driving-shaft and thence to a Cardan joint by means of toothed clutch wheels f, g, which, as they are moved into meshing position, force oil into the duct through a ball bearing e.
Patent GB-301598-A (GB)
Title: Improvements in fittings for hose suspenders and the like
IPC: A41F19/00
Filed: 1927-10-12
Abstract: 301,598. Fleming, J. G. Oct. 12, 1927. No Patent granted (Sealing fee not paid). Stocking - suspender grips. - A friction-grip stocking &c. suspender comprises a plate 1 with a slot 2 through which an elastic band 4 is passed and secured by stitching, and with an aperture 5 with a bevelled lower edge in which a second member 6 is adapted to fit. Member 6 has a recess with cross-bar 8 round which a band or ribbon is passed and secured. The edge of the stocking &c. is gripped between members 1, 6.
Patent GB-264434-A (GB)
Title: An improved portable corner receptacle
IPC: A47G29/06
Filed: 1926-10-29
Abstract: 264,434. Bovis, Ltd., and Pinto, E. H. Oct. 29, 1926. Garment stands.- A corner cabinet or receptacle of triangular cross section is provided at the rear with a coat-hanger G, and the top is extended to form a garment rail H.
Patent GB-379536-A (GB)
Title: Improvements in or relating to cosies for teapots and the like
IPC: A47G19/20
Filed: 1931-09-29
Abstract: 379,536. Tea &c. cosies. HOLLAND, C. E., 100, Glenwood Gardens, Ilford, Essex Sept. 29, 1931, No. 27131. [Class 128.] A cosy comprises a two-part receptacle, the parts being mounted on base members which are hinged together centrally so that the cosy opens automatically when the teapot &c. is lifted. The base members 3, 4 are of heat insulating fibrous or ceramic material and carry wire frames 6, 7 covered with insulating wadding and art needlework or similar material The frames 6, 7 are shaped so as to lie in contact at their upper ends 17, 18 when the cosy is closed but are spaced apart at 20, 21 to allow the handle and spout of the teapot to project. The lower ends of the frames project through the bases 3, 4 to receive feet 12 .. 15. The interior of the cosy is preferably conical so that the teapot exerts an outward thrust when lifted and a spring 25 may also be provided to assist opening. A tab 29 keeps the cosy closed when desired. In a modification, Fig. 3, the base members are of plywood are provided with triangular feet 36, 37, 40, 41 which are shaped to assist the opening of the cosy. In this case the base members pivot about the points 38, 39 and the spring 25 may be dispensed with.
Patent GB-1499298-A (GB)
Title: Motor vehicle rear suspension system
IPC: B60G11/18
Filed: 1976-06-30
Abstract: 1499298 Motor vehicle suspensions FORD MOTOR CO Ltd 30 June 1976 [7 July 1975] 27140/76 Heading B7D A motor vehicle rear axle suspension comprises laterally extending suspension arms 78, 84 pivotally connected at their outer ends to the rear axle 72, compresssion links 81, 87 connecting the inner ends of the arms 78, 84 to the vehicle body 83, and a rear torsion bar 88 having a transverse portion 89 mounted on the body and longitudinal portions 93, 94 connected to the arms 78, 84. The torsion bar 88 provides the main rear springing, acts as locating means for the axle and also acts as an anti-roll stabilizer. A longitudinal link 73 is pivotally connected to the axle 72 and to the body. Longitudinal torsion bar 100, 112 are connected at their rear ends to the arms 78, 84 and act at their front ends on a front torsion bar 26 which provides the main front springing, acts as an anti-roll stabilizer and has left and right side portions 30, 50 functioning as positioning members for front wheels 10, 12. The front wheels 10, 12 are rotatably mounted on respective carriers which are connected to the left and right side portions 30, 50 of the bar 26 by ball joints 37, 55 having sockets which are press fitted into loops 36, 54 formed in the bar and reinforced by straps 56, 57. Telescopic dampers 16, 24 rigidly connected to the wheel carriers have piston rods connected at their upper ends to the vehicle body by resilient mountings.
Patent GB-145334-A (GB)
Title: Improvements in carpet sweepers
IPC: A47L11/33
Filed: 1919-11-05
Abstract: 145,334. Entwisle & Kenyon, and Dickinson, T. Nov. 5, 1919. Carpet-sweepers.-To prevent threads, hairs, &c. from getting into the brush bearings, cutting- appliances carried by the ends of the casing enter the end tufts of the brush and extend contiguously to its spindle. In the form illustrated, a bracket A is secured to the casing end and has an inner member a formed with two cutting-projections d to enter the end tufts. The outer member a<1> has an inwardly bent serrated portion d<1> which passes through the slot b<1> in the casing and partly surrounds the brush spindle. The cutting-appliances, instead of being on one piece of metal, may be on separate brackets each attached to the casing.
Patent GB-294222-A (GB)
Title: Improvement in steel wool holders
IPC: A47L13/022
Filed: 1927-10-13
Abstract: 294,222. Williams Co., (Assignees of Boehler, R. F.). July 21, 1927, [Convention date]. Scrapers, pan and like.-A holder for a steel wool pad is of frusto-conical form, Fig. 2, and has an inwardly tapering surface 5 which meets an annular flange 4. The pad 8, Fig. 6, is wound tightly of a series of strands, so that it is resilient and clings to the tapered surface of the holder. Pressure on the pad forces the wool towards the flange 4 and increases the adherence of the pad to the holder. The holder may be used with or without a handle 1, Fig. 1, which has a shank 3 engageable with a hole 7 in the holder.
Patent GB-701696-A (GB)
Title: Improvements in or relating to warp beams
IPC: D02H13/28
Filed: 1950-11-08
Abstract: 701,696. Warp beams. RADFORD. F.W: Nov. 8, 1951 [Nov. 8, 1950]. No. 27252/50. Class 142(2) A warp beam flange 3 comprises a bush 5 having a recess 7 into which a semicircular portion 8 fits. The inside surface of the complete bush has a screw thread 9 engaging a screw thread on the warp beam. Screws 10 enable the flange to be clamped in any desired position along the beam.
Patent GB-1292228-A (GB)
Title: Improvements relating to the production of cumene
Inventor: DOVEY GEOFFREY
IPC: C07C6/12
Filed: 1970-06-05
Abstract: 1292228 Cumene BRITISH PETROLEUM CO Ltd 10 May 1971 [5 June 1970] 27269/70 Heading C5E Cumene is prepared by the transalkylation of benzene and diisopropylbenzene at above 250 C. in a molar ratio of at least 0À5 : 1 in the presence of hydrogen and an alkali metal cation-deficient zeolite of pore size at least 6 , having a SiO 2  : Al 2 O 3  ratio of at least 3 : 1 and containing a hydrogenating metal, i.e. a group VIII or Ib metal. Preferred zeolites are zeolites Y or L which have been decationized, and contain Ni, Co, Pt or Pd in amount 0À1-5 wt. per cent. The process may be combined with a process for the preparation of cumene by alkylation of benzene with propylene, the polyalkylbenzene by-product being combined with unreacted benzene to form the transalkylation feed.