baber/WOPTO huggingface dataset:
Patent GB-857510-A (GB)
Title: Improvements in or relating to electrical analogue to digital converters
IPC: H03M1/00
Filed: 1959-02-20
Abstract: 857,510. Electric selective signalling systems. SOC. NOUVELLE D'ELECTRONIQUE. Feb. 20, 1959 [Feb. 28, 1958], No. 6008/59. Class 40 (1). In a device for digitising an amplitude significant voltage derived from a sliding potentiometer of the type in which the voltage to be digitised is compared with a linearly increasing voltage from a time-base circuit and in which clock pulses are counted for the period from when the time-base circuit is triggered until equality of the two voltages is detected, means are provided for periodically adjusting the reference voltage that is applied to the sliding potentiometer to such a value that when the slider of the potentiometer is in its extreme position equality between the voltage then produced and the time-base voltage occurs when the counter has just reached its maximum capacity. This ties the entire system to the source of clock pulses and compensates for any drift in the circuit parameters. The circuit for effecting this periodic adjustment is shown in full lines in Fig. 2, the dotted lines being connections required only for the actual digitisation, and an adjustment is effected as follows: a pulse 4 is applied to trigger the time-base and to cause clock pulses to be applied to the counter. When the counter reaches its maximum capacity it stops the clock pulses and causes the time-base circuit to apply the voltage it has then reached to a circuit 13, via a diode 12, where this voltage level is clamped, and from the clamp this voltage is applied via a unity-gain amplifier to the sliding potentiometer 7. In the actual embodiment described, a plurality of potentiometers 7 have their outputs multiplexed.
Patent GB-402286-A (GB)
Title: Process for the manufacture of bornyl oxalates
IPC: C07C35/30
Filed: 1933-02-28
Abstract: Bornyl oxalates are prepared by treating pinene with anhydrous oxalic acid under the following conditions: (1) in the absence both of a solvent and of a condensing agent, (2) with continuous agitation at a temperature of 110--125 DEG  C., and (3) with elimination of the water formed, or in an oxygen-free atmosphere, or under reduced pressure.  Borneols may be obtained by saponification of the products.  The addition of an anti-oxygen compound, e.g. hydroquinone or other phenol, may replace the use of an oxygen-free atmosphere or may be employed in addition thereto.  Anhydrous sodium sulphate and anhydrous oxalic acid are mentioned as suitable agents for absorbing the reaction water, the products of the reaction being preferably circulated over them in vapour form.  The oxygen-free atmosphere may be secured by passing nitrogen, carbon dioxide or benzene vapour through the reaction mixture.  Examples are given of the formation of bornyl oxalates from pinene and essence of turpentine, and of their saponification to give borneol and isoborneol.
Patent GB-319315-A (GB)
Title: Improvements in and relating to electric cables
IPC: H01B7/22
Filed: 1929-02-25
Abstract: 319,315. Cremer, C. Sept. 20, 1928, [Convention date]. Cores for cables; cables, arrangement and disposition of parts of.-A multicore cable for heavy currents is formed of intertwisted cores each provided with a metal covering, the individual conductors each consisting of a. single solid wire of over 10 square m.m. cross-section. In the embodiment, a three-core cable comprises solid conductors 1 having insulated coverings 2 and lead coverings 3. The spaces between the cores are filled with jute 4, and the whole cable is surrounded by armouring 5 and an outer jute. covering 6.
Patent GB-595011-A (GB)
Title: Improvements in or relating to blowers
IPC: F04D17/12
Filed: 1945-03-12
Abstract: 595,011. Centrifugal fans. SULZER FRERES SOC. ANON. March 12, 1945, No. 6104. Convention date, March 14, 1944. [Class 110 (i)] A centrifugal blower for delivering quantities of from 0.1 to 3 cubic metres per second at a pressure ratio up to about 1.7 comprises a number of impellers of the same shape and size mounted on a common shaft and operating at peripheral speeds of up to 150 metres per second. The impellers 5 may be light metal castings or made from sheet metal by riveting or spot welding the blades 9 to the rear and front discs 7, 8. The blades 9 may have an outlet curvature directed forwards or backwards relative to the direction of rotation. The casing 1 comprises identical ring-shaped elements 1a having guide blades 16 and separating walls 10, which are joined together and connected to end covers 14, 15 by axial tie bolts 20. In addition to a main inlet 17 there may be one or more intermediate inlets 19. Packing rings 12, 13 are provided at each stage. The bearings 3 for the shaft 4 are mounted externally and the lubricant is circulated automatically. The machine may be used as a blower or for providing suction.
Patent GB-1027844-A (GB)
Title: Improvements in or relating to closure members for jars and similar containers
IPC: B65D41/04
Filed: 1963-02-14
Abstract: 1,027,844. Container closures. BUHLER GEB. Feb. 14, 1963 [Feb. 15, 1962], No. 6121/63. Heading B8T. A screw-cap 3 with a central depression 6 of a frusto-conical shape, has one or more annular sealing projections 7 adapted to sealingly engage a container with a complementary frusto-conical neck 5. The projections may be step-like with their outer walls either parallel to or at a slight angle to the vertical.
Patent GB-1450378-A (GB)
Title: Solid propellants
IPC: C06B21/00
Filed: 1966-02-11
Abstract: 1450378 Propellants USA ARMY SECRETARY OF 11 Feb 1966 [11 Aug 1965] 6200/66 Heading C1D [Also in Division F3] The ignitability of a solid propellant having a nitrile-containing binder component is improved by providing the burning surface with a metal layer by reacting the burning surface with a gaseous metal carbonyl. Layers containing nickel or iron are produced using Ni(CO) 4 , Fe(CO) 3 , or Fe(CO) 5  at a pressure above atmospheric. The carbonyl compound may be mixed with nitrogen and heated to 100-200 C. The treated surface is electrically conductive and this property may be made use of to detect cracks in the propellant. The propellant composition may contain finely-divided aluminium, ammonium perchlorate, and polybutadieneacrylic acid-acrylonitrile binder.
Patent GB-199770-A (GB)
Title: Novel or improved means for stripping the husks from cocoanuts
IPC: A01F11/08
Filed: 1922-03-02
Abstract: 199,770. Elsworth, O. March 2, 1922. Fibres, obtaining.-In apparatus for stripping the husks from cocoa-nuts, the nuts are led by arms 28 from a slide 27 down guides 29 to huskloosening means comprising a series of rotary toothed discs 10, alternating with fixed plates also provided with teeth, and a resilient concave pressure member 15 having teeth 16. One or more cams 22 also having teeth are provided on the discs 10 to prevent the nuts from sticking. The loosened husks are seized between a plain roller 24, Fig. 4, and a spiral threaded roller 25 and torn off. These rollers may be resiliently mounted to accommodate extra thick pieces of fibre. The rotary discs 10 and the fixed plate may be much reduced in diameter, as in Fig. 5, the pressure member consisting of a plate 15 pivoted at 31 and having adjustable weights 32. The loosened husks are removed by a series of rotary discs 33 rotated at the same speed as the discs 10. The nuts are fed down a slide 41 and picked up one by one by a pusher-plate 42. As the plate 15 rises, its pressure is varied by rods 47, which it picks up in succession.
Patent GB-163164-A (GB)
Title: Improvements in or connected with picture frames, surrounds, plaques, and like mountings
IPC: A47G1/06
Filed: 1920-03-02
Abstract: 163,164. Brewin, M. P., and Brewin, O. E. March 2, 1920. Drawings to Specification. Pictures; picture and like mounts. - Lithographic, photographic, or other pictures are made into wall-plaques by placing the picture face downwards in a mould and covering the back with plaster reinforced by wire-gauze or sacking. When the plaster has set, the plaque is removed and varnished. Means for hanging it are attached to the back. Specifications 25920/13 and 109,696 are referred to.
Patent GB-1455932-A (GB)
Title: Process for producing polymer having functional groups at its  chain terminals
IPC: C08F8/34
Filed: 1974-02-12
Abstract: 1455932 Terminally reactive polymers JAPAN SYNTHETIC RUBBER CO Ltd 12 Feb 1974 [12 Feb 1973] 06354/74 Heading C3P Polymers containing functional groups at each chain terminal are produced by (1) reacting an alkali-metal-terminated polymer with an alkylene oxide or alkylene sulphide in a hydrocarbon medium having a solubility parameter of 7-2 or less at 25‹ C., and if desired (2) treating the product with an active hydrogen-containing compound, e.g. water, acetic acid or hydrochloric acid. Suitable hydrocarbons are propane, n-butane, isobutane, 1-butene, cis-2- butene, trans-2-butene, isobutene, n-pentane, isopentane, neopentane and 2,2,4-trimethylpentane. In Examples, di-lithium-terminated polybutadiene, polyisoprene and butadiene/ styrene copolymer are reacted with ethylene oxide: and di-lithium-terminated polybutadiene is reacted with ethylene sulphide; and the products are acidified to yield terminal hydroxyl or thiol groups.
Patent GB-1433493-A (GB)
Title: Soil cultivating implements or harrows
IPC: A01B33/08
Filed: 1973-06-14
Abstract: 1433493 Rotary harrows C VAN DER LELY NV 14 June 1973 [18 April 1973] 6488/75 Divided out of 1433491 Heading A1B The subject-matter of this Specification is identical with that described in Specifications 1433491 and 1433492, but the claims are concerned with the construction of the supporting frame 1.
Patent GB-1499340-A (GB)
Title: Producing pullulanase with organisms having a superior capacity to elaborate pullulanase
Inventor: BULICH A
IPC: C12N9/44
Filed: 1975-02-17
Abstract: 1499340 Making pullulanase preparations A E STALEY MFG CO 17 Feb 1975 [25 Feb 1974] 6539/75 Heading C3H A method for producing pullulanase by inoculating an aqueous nutrient medium containing assimilable carbon and nitrogen sources with an aerobic, pullulanase-producing microbial organism to provide a culture thereof, incubating the culture under aerobic conditions conducive to the production of pullulanase and thereby providing production culture media thereof, and thereafter recovering a pullulanase preparation from the production culture media, is characterized in that the microbial organism (a) elaborates at least three times more pullulanase when amylopectin of a dextrose equivalent of less than 2À0 is employed as the sole carbohydrate source comparative to pullulanase elaboration in a nutrient medium wherein the major carbohydrate, on an equivalent carbohydrate weight basis, is a carbohydrate source member selected from maltose, dextrose, lactose and pullanan; (b) elaborates pullulanase at a ratio of extra-cellular pullulanase to superficially bound cell pullulanase of from 2 : 3 to less than 7 : 3whentheorganismiselaboratedinanutrient medium containing amylopectin as the sole carbohydrate source; (c) elaborates pullulanase in a nutrient medium which contains dextrose as a sole carbohydrate source; and wherein the organism is incubated in a nutrient medium for a period of time sufficient to provide a production culture medium which contains at least 350 units of pullulanase for each millilitre of production culture medium, the production culture medium containing a ratio of extracellular pullulanase to superficially bound pullulanase of from 2 : 3 to less than 7 : 3. Preferably the micro-organism used is an artificially induced Klebsiella mutant preparation containing Klebsiella pneumoniae NRRL-B-5780, Klebsiella pneumoniae NRRL-B-5783 and Klebsiella pneumoniae NRRL-B-5784.
Patent GB-1122775-A (GB)
Title: Surgical dressing
IPC: A61B19/00
Filed: 1966-02-16
Abstract: 1,122,775. Surgical dressings. L. D. KURTZ and R. H. SMITH. 16 Feb., 1966 [23 Feb., 1965], No. 6733/66. Heading A5R. A surgical dressing, intended for application to the skin immediately surrounding a tube extending from the body, comprises an absorbent sheet with two apertures 5 and a slit 6 extending from each aperture to the periphery of the sheet, the slits being located on apposite sides of the line between the apertures and the sheet being folded so that the apertures coincide and the slits are relatively offset. Alternatively, two superposed sheets (not shown) have coinciding apertures and a slit extends from each aperture to the periphery of the sheets, which are sewn or glued together along one edge. For use, opposite edges of the folded sheet or superposed sheets are pulled in opposite directions to open both slits until portions of the opened slits coincide to form a slot. The slot permits passage of the tube and closure of the slits secures the dressing around the tube.
Patent GB-764325-A (GB)
Title: Compounds of the cyclopentanopolyhydrophenanthrene series and processes for preparing the same
IPC: C07J75/00
Filed: 1952-03-03
Abstract: The invention comprises 3-hydroxy-11-keto-bisnorallocholanic acid and the corresponding methyl bisnorallocholanate, and the preparation thereof by reducing 3-acetoxy-7,11-keto-bisnorallocholanic acid, or the corresponding methyl bisnorallocholanate, with hydrazine hydrate and an alkali metal hydroxide at an elevated temperature in a high boiling inert organic solvent medium, e.g. diethylene glycol.  The above process may be modified in that methyl - 3 - acetoxy - 7,11 - diketo - bisnorallocholanate is prepared by treating 3-acetoxy-7,11-diketo-D 22-ergostene with ozone and subsequently oxidizing with chromic acid to form 3 - acetoxy - 7,11 - diketo - bisnorallocholanic acid which is then esterified with diazomethane. Two detailed examples are given in which the above processes are exemplified and also include the preparation of methyl 3-hydroxy-11-keto-bisnorallocholanate by esterifying the corresponding free acid with diazomethane.
Patent GB-309990-A (GB)
Title: Improvements relating to the manufacture of self-aligning self-lubricating bearings
IPC: B60R17/00
Filed: 1929-03-02
Abstract: 309,990. Skillman, N. April 19, 1928, [Convention date]. Bearings; compound forms.-A self-aligning bearing comprises a thin metallic spherical member 1 lined internally and externally with a fibrous material 2, 4 impregnated with lubricant and surrounded by a metallic member 3. The member 1 is formed from a tube in which a sheet of fibrous lining 2 is inserted, the tube and the lining 2 being then pressed to shape. The inner member is mounted on a member 7 and surrounded by a tube 3 and fibrous material 4 and the tube 3 is then pressed between dies to spherical shape. The central part of the tube is distorted at 6 to hold a plate 5 in position. The act of pressing the tube 3 also compresses the lining 4. The central plate 5 may be omitted as shown in Fig. 6.
Patent GB-235628-A (GB)
Title: Improvements in tourniquets
IPC: A61B17/132
Filed: 1924-03-17
Abstract: 235,628. Thomas, W. March 17, 1924. Buckles.-A fastening device for a surgical tourniquet having a band consisting of rubber tubing consists of a member 3 having a grooved spigot portion 4 to be inserted in and secured to one end of the rubber tube 1, and formed with an opening 7 for the passage of the free end of the tube 1 and within which is pivoted a cam 8. The gripping surface 9 of the cam is formed concave to fit the surface of the tube. A finger piece 10 and projection 11 on the cam serve as stops to limit its movement in either direction.
Patent GB-307083-A (GB)
Title: A process and apparatus for liquefying and supplying gases
IPC: F17C9/02
Filed: 1927-12-29
Abstract: 307,083. Ges. f³r Industriegasverwertung. Jan. 14, 1927, [Convention date]. Divided on 282,813, under .which a Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 30, 1927. Sioring under pressure. - Plant for supplying compressed gas derived from a body of the liquid evaporating in a vessel 1 is provided with cylinders 5, 6, 7 in which gas evolved when not required can be stored, while an ejector 4 can be connected with these cylinders to empty one of them, transferring the gases, under higher pressure, to the others. The ejector is operated by gas evaporated at not less than 150 atmospheres in a vessel 2 receiving liquid from the vessel 1. An auxiliary gas storage vessel 3 is provided. The cylinder 5 thus emptied can receive a further supply of gas from the vessel 1. Specification 279,041 is referred to.
Patent GB-177373-A (GB)
Title: Improvements in and relating to rims for the wheels of road vehicles
IPC: B60B23/04
Filed: 1921-03-02
Abstract: 177,373. Oldridge, C. W., and Thorns, W. B. March 2, 1921. Tyre attachments to rims; detachable-rim attachments to wheels.- The parts a<2> of a detachable tyre-carrying rim are formed with spaced projections a<4> to engage an expansible split channelring d, the adjacent edges of the rim parts a<2> being supported by blocks e or an expansible rail in the bed of the ring d. The rim parts a<2> are held together by plates c which fit registering dovetail notches a' and the split ring d is held against the felly f by lugs f<1> and transverse bolts.
Patent GB-1365032-A (GB)
Title: Fluidoperable lifting device
IPC: F15B15/20
Filed: 1973-02-13
Abstract: 1365032 Controlling hydraulic jacks JOSEF HAAMANN HEBE-UND TRANSPORT-TECHNIK 13 Feb 1973 [29 Feb 1972 (2)] 6889/73 Heading F1P A lifting device comprises a plurality of hydraulic jacks 1, 2, Fig. 1, and a control unit comprising a plurality of control valves 19, Fig. 2, which are connected through pilot valves 18 to the pistons of the jacks which include valves 5, 4 for raising and lowering the piston. The control unit also includes a shut-off valve 23 for each jack and in series therewith a pressure limiting valve 24 set to a maximum setup pressure, both these valves being in parallel with a feed line 16 and a return line 17. Each control valve has a control lever 41-44, Fig.3, and these may be selectively gauged together by a pivoting frame 45 with a handle 52. To disengage a lever from the frame 45 a handle 49 is moved downwards to withdraw the end of the handle from a groove in the frame. An overload valve 25 is set to the maximum lowering pressure and a valve 26 is set to maximum working pressure. When pressure liquid is supplied to the piston, a ball 5 is lifted off its seat to allow flow through a duct 8. An overload valve 6 is provided. When the control valve 19 is in the "lower" position fluid passes through line 17 into chamber 12 and moves lowering valve 4 to the left lifting it from its seat 10 so that fluid flows from the jack back to the reservoir. The lowering valve 4 may be manually opened by a lever 7 with a cam 7'.
Patent GB-330261-A (GB)
Title: Savings-bank and other coin-freed calendars
IPC: G07F17/16
Filed: 1929-03-04
Abstract: 330,261. Wilson, M. S. Campbell-. March 4, 1929. Date indicators.-A money box is combined with a calendar mechanism, the manual operation of which is controlled by the insertion of a coin or coins, the mechanism being freed by the inserted coin releasing a spring pawl from engagement with a pocketed flange on a drum or spindle carrying the date indications. As shown in Figs. 1 and 2, a casing 1 has a window or aperture 2 through which is displayed one of the date figures 2<A> arranged on a band 7 that is attached to drums on rotatable spindles 3, 4 mounted in the casing. A flange 11 on the spindle 4 contains a pocket or recess 12 for the reception of a coin inserted through a coin slot 9 in the casing. The flange is provided with a notch 13 which is normally engaged by a spring pressed pawl 14 to lock the spindle 4 against rotation in the direction of the arrow, Fig. 2. A second spring catch 16 is provided to hold the spindle if an attempt is made to turn it when the coin pocket is empty. If a coin has been inserted and the spindle operated, the coin itself engages the spring catch to move it to inoperative position. The flange may contain two or more pockets arranged around it or side by side, in which case a corresponding number of coins will have to be inserted to render the mechanism operative. Instead of a band 7 the date figures may be arranged on tablets pivoted at one edge to the spindle 4 and displayed one at a time.
Patent GB-414163-A (GB)
Title: Improvements in or relating to portable machines for treating floors and articles laid thereon
IPC: A47L11/30
Filed: 1933-03-07
Abstract: 414,163. Cleaning-machines for floors and carpets. TAYLOR, F. W., 132, Lots Road, Chelsea, London. March 7, 1933, No. 6942. [Classes 60 and 138 (i).] In a machine for treating floors and articles laid thereon, of the kind comprising surface treating means driven by an electric motor and fed with cleaning liquid, suction means being provided for removing surplus liquid from the surface treated, and the whole being carried by a movable frame, the surface treating means comprises a roller mounted to rotate about a horizontal axis, or two such rollers mounted one behind the other and rotated in opposite directions. Each roller 20, 21 is carried by two spring-pressed rocking arms 22, 23, so as to be readily detachable from its bearings and from driving connection with the motor 18, and comprises a perforated cylindrical metal sleeve 41, Fig. 3, adapted to carry the surface treating means which may be bristles, sponge rubber, or of an abrasive nature, liquid being fed from a tank 26 provided with a heater 39 to opposite ends of the rollers 20, 21, by means of a feed tube 27 having branch pipes 28, 29. The supply of liquid from the tank 26 is controlled by a valve 65, and where a roller having an abrading surface is used, the valve 65 may be closed. The waste material passes into a suction nozzle 35, and is delivered by a fan 32 into a bucket 30, the floor or carpet being dried by the suction means and by a heater 40. A brush 67 may be arranged behind the suction nozzle 35 for use in smoothing down the carpet pile.
Patent GB-1129084-A (GB)
Title: Novel pyrido[2,3-d]pyrimidines
IPC: A61K31/00
Filed: 1965-02-18
Abstract: 1,129,084. Pyrido[2,3-d]pyrimidines. WELLCOME FOUNDATION Ltd. 18 Feb., 1966 [18 Feb., 1965; 25 Nov., 1965], Nos. 7055/65 and 50139/65. Heading C2C. Novel compounds of general formula or pharmaceutically acceptable salts thereof, in which formula R<SP>1</SP> is H, alkyl, unsubstituted aralkyl, or aryl optionally substituted by one or more of halogen, C 1-4  alkyl, C 1-4  alkoxy or nitro substituents; and R<SP>2</SP> is H, alkyl, aralkyl, methylbenzyl or aryl, are prepared by reaction of a compound of formula with ammonia. 2,4 - Diamino - 7 - chloro - 6 - methyl - 5 - phenyl-pyrido[2,3-d]pyrimidine is prepared from 2,4- diamino - 7 - hydroxy - 6 - methyl - 5 - phenylpyrido[2,3-d]pyrimidine which is itself obtained by condensation of 2,4,6-triaminopyrimidine and ethyl α-benzoylpropionate. Pharmaceutical compositions in conventional forms for oral or topical administration and having antibacterial and diuretic activity comprise an above novel compound and a carrier therefor.