baber/WOPTO huggingface dataset:
Patent GB-1015279-A (GB)
Title: Dextran compounds, methods and compositions
IPC: C08B37/02
Filed: 1964-09-01
Abstract: The invention comprises hydroxyalkyl dextran containing 0.01 to 0.2 hydroxyalkyl groups per anhydroglucopyranosidic unit, said hydroxyalkyl groups containing 2 to 5 carbon atoms.  The derivatives may be made by reacting dextran with (a) substances of formula X-R, where X is a chlorine or bromine atom and R is a hydroxyalkyl group containing 2 to 5 carbon atoms; or (b) epoxy compounds obtainable by splitting off hydrogen halide from substances of formula X-R, the reaction being carried out in the presence of an alkaline reacting substance.  The dextran, which may be of mol. wt. 20,000 to 100,000 may have a reducing end group, or may have had the reducing end group removed by e.g. oxidation, hydrogenation or glycosidation.  Specified hydroxyalkyl substituents are 2-hydroxy-ethyl; 2 - hydroxypropyl, 2,3 - dihydroxypropyl, 2-hydroxybutyl and 2-hydroxypentyl.  The dextran derivative may contain two or more different hydroxy alkyl substituents, introduced simultaneously or by consecutive reactions. The etherification is preferably effected in aqueous solution, specified etherification reagents being ethylene oxide, 1,2-epoxy-propane, 1,2 - epoxy - 3 - propanol, ethylene chlorohydrin, ethylene bromohydrin, 1-chloro-2 - propanol, 1 - chloro - 2,3 - propanediol, 1 - bromo - 2,3 - propandiol, 1,2 - epoxy - butane, 1 - chloro - 2 - butanol, 2,3 - epoxybutane and 2,3-epoxy-pentane. Before or after etherification, the molecular weight of the dextran may be reduced to a desired value by acid hydrolysis or by enzymatic or bacteriological degradation. Aqueous solutions of the hydroxyalkyl dextrans, which are of therapeutic use (Division A5) show little or no tendency to precipitation ("flaking") on storage.ALSO:A therapeutic composition comprises an aqueous solution of a hydroxgalkyl dextran containing 0.01 to 0.2 hydroxygalkyl groups per anhydroglucopyranosidic unit, the hydroxgalkyl groups containing 2 to 5 carbon atoms.  The aqueous solution may contain 3 to 15% of the dextran derivative, and may also contain additives such as glucose and sodium chloride.  The solution may be sterilised by autoclaving. The solutions, which are used as infusion and injection fluids, have similar therapeutic properties to solutions of unsubstituted dextran but show little or no tendency to precipitation ("flaking") a storage.
Patent GB-323335-A (GB)
Title: Improvements relating to drums, spools or the like for carrying cables, wire, and other flexible material
IPC: B65H75/14
Filed: 1928-12-03
Abstract: 323,335. Saulter, A. W. Dec. 3, 1928. Reets.- A drum for carrying cable wire &c. comprises a sheet-metal cylindrical barrel 1, Fig. 2, and two metal flanges 2, the parts being held together by bolts 5 which pass through the flanges and contact with the inner surface of the barrel or with inwardly-directed steps or rims 3 provided on the said flanges. The steps 3, which serve to position the barrel, may be pressed in one with the flanges or be formed separate and riveted thereto, while the peripheries of the flanges are pressed outwardly to provide bearing surfaces 12, having holes 11, for the usual wooden &c. protecting slats. In a modification, Fig. 4, the parts are held together by a central sleeve 7 provided at one end with a head 6 and screwed at the other end to receive a nut 9, while the bearing surfaces for the protecting slats are formed by L-section brackets 13 secured to the flanges. The flanges may be strengthened by radial webs 10.
Patent GB-950529-A (GB)
Title: Pharmaceutical anti-convulsant compositions comprising thiadiazole derivatives
Inventor: CLARKSON RICHARD
IPC: A61K31/00
Filed: 1961-10-04
Abstract: Pharmaceutical anticonvulsant compositions comprise a carrier and a compound of the general formula <FORM:0950529/A5-A6/1> where R stands for a hydrocarbon radial, e.g. a C1-12 alkyl radical or an aryl radical containing not more than 10 carbon atoms, e.g. the phenyl, naphthyl and tetrahydronaphthyl radicals. They may be in conventional forms suitable for oral, parenteral and rectal administration, e.g. a tablet, capsule, aqueous or oily suspension, dispersable powder, syrup, elixir, injectable solutions or suspensions, e.g. in 1,3-butane diol and suppositories such forms comprising conventional diluents and excipients.  Specification 916,061 is referred to.
Patent GB-1027835-A (GB)
Title: Improvements relating to electric surge detectors
Inventor: HARVEY PETER
IPC: G01R19/04
Filed: 1961-10-05
Abstract: 1,027,835. Tunnel diode switching circuits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Sept. 4, 1962 [Oct. 5, 1961], No. 35913/61. Heading H5T. [Also in Division G1] An electric surge detector (Fig. 3) comprises a transistor T1 arranged to be normally non- conducting and having a base emitter circuit which includes a tunnel diode TD, a detecting and/or measuring arrangement M responding to the flow of collector current in the transistor and an input circuit connected across the tunnel diode and comprising a rectifying arrangement which permits the passage of incoming voltage pulses or surges of at least one polarity to the respective sides of the tunnel diode. This input circuit may consist of a diode-resistance bridge D2, D3, R2, R3 and a further diode D1 arranged such that whatever the polarity of the pulses on the input terminals I1, I2 a negative pulse is applied across the tunnel diode. This is sufficient to disturb the normal equilibrium position of the tunnel diode and send the combined transistor-tunnel diode arrangement to the second equilibrium position, in which the transistor conducts. It may be arranged that several serially connected tunnel diodes biased by a source of constant potential replace the single one so that the magnitude of the incoming surges may be determined according to the number of those diodes which change their state (Figs. 4 and 5, not shown). The bias required by the serially connected diodes may be derived from a Zener diode and capacitor in series with the transistor collector supply (Fig. 6, not shown) and the indicating meter may with advantage be included in the emitter circuit of the transistor.
Patent GB-619374-A (GB)
Title: Improvement to centrifugal fans, pumps and the like
IPC: F04D29/22
Filed: 1946-12-05
Abstract: 619,374. Centrifugal fans. STENHOUSE, J. W. Dec. 5, 1946, No. 36010. [Class 110 (i)] A centrifugal pump in which the fluid enters the interior of the rotor chamber axially and is expelled radially is provided with a series of radial splitters or guide vanes c welded or soldered to the forward face of the fan vanes b. The inner edges of the vanes c may extend progressively into the rotor chamber towards the back of the rotor. The vanes c may also be in the form of a complete annulus.
Patent GB-1141625-A (GB)
Title: Alumina supported catalyst
IPC: B01J23/26
Filed: 1966-08-12
Abstract: 1,141,625. Methyl methacrylate. EASTMAN KODAK CO. 12 Aug., 1966 [16 Aug., 1965], No. 36157/66. Heading C2C. [Also in Division B1] The dehydrogenation of methyl isobutyrate to methyl methacrylate is effected in the presence of V 2 0 5 , Mo0 3  or Cr 2 0 3  supported on a specially prepared A1 3 0 3  support activated by hydrocarbon treatment and heating at 500-700‹ C. Typical reaction conditions are 600‹ C., for 0À5 sec. contact time and 50 mm. Hg partial pressure of methyl isobutyrate in nitrogen at 1 atmosphere.
Patent GB-663613-A (GB)
Title: Improvements in adjustable fittings for scaffolding, shores, trestles, shuttering and the like
Inventor: HAWES ALBERT HENRY
IPC: E04G1/32
Filed: 1946-12-07
Abstract: 663,613. Scaffolding; shoring. KWIKFORM, Ltd. Dec. 7, 1946, No. 36247/46. Addition to 604,588. Class 20(ii) In an adjustable trestle for use with builders' equipment, e.g. scaffolding and shuttering, a socket 13 and a tube 17 interengaging by means of multi-start largepitched screw threads and a screw 18, is provided for locking the two members against relative turning movement. The tube 17 is of polygonal section throughout its length and is twisted about its axis to form the screwthread. The invention is described as applied to a jumper trestle similar to that in the parent Specification, but the twisted bar 16 on which is mounted the crutch 14, for carrying a beam, is threaded in a second socket 19 rigidly fixed to the top of the tube 17, and the bar 16 telescopes within the tube 17. Specifications 616,728, 641,548 and 663,615 are referred to.
Patent GB-810564-A (GB)
Title: Apparatus for the heat-treatment of webs of textile material
Inventor: KRANTZ HUBERT
IPC: F26B21/00
Filed: 1955-12-19
Abstract: Apparatus for heat treating a horizontally movable web 1 comprises upper and lower blowers 3 supplying steam or hot air (see also Group XIII) via nozzle chambers 4 to nozzles 8 which extend across the whole width of the fabric, and is characterized by the provision of annular diffusers 5, concentric with the axes of the blowers, which cause the gas to flow in the direction of the arrows into the chambers 4 which are tapered in cross-section to form channels securing a flow from the nozzles 8 of steady and uniform velocity. The chambers 6 extend along the transverse walls of each such treating section over the entire width of the chambers 4, and the gas is re-circulated through heaters 9. <PICT:0810564/IV (c)/1>
Patent GB-1223687-A (GB)
Title: Pressing concrete articles
Inventor: DICKINSON STANLEY
IPC: B28B5/04
Filed: 1967-08-09
Abstract: 1,223,687. Moulding concrete articles; ejecting articles from moulds. WORSLEY MESNES ENG. Ltd. 1 Oct., 1968 [9 Aug., 1967], No. 36478/67. Heading B5A. Pressed concrete articles e.g. kerb edgings are made by pouring concrete into a mould, compressing the concrete, releasing the pressure, removing a side wall of the mould and ejecting the article sideways from the mould. Preferably the concrete layer is formed on top of a sheet of gauze and a sheet of paper and both are short walls of a rectangular mould are removed before ejection by a horizontally operating plunger. As shown, a rectangular mould 10 (seen end on in Fig. 1,) has side walls 12, 13, base 14 and is mounted on a carriage movable on rails 27 by piston 18. The end walls of the mould are mounted on pistons 25 also mounted on the carriage. The mould is filled from ladle 21 and is moved by cylinder 18 to a position under die block 15 which is lowered by pistons and cylinders 16 to compress the concrete. The carriage is returned to the position shown, the end walls are lowered by pistons 24, 25 and the formed block is pushed out by plunger 19 (Fig. 8). The process and apparatus can be used to form blocks with curved edges (e.g. profiled by mould wall 13) which cannot be lifted out of the mould.
Patent GB-944466-A (GB)
Title: Improvements in inserted tooth milling cutters
IPC: B23P15/34
Filed: 1962-09-26
Abstract: 944,466. Assembling force fits; milling- cutters. O. KRUSE. Sept. 26, 1962 [Oct. 12, 1961], No. 36555/62. Headings B3K and B3U. A milling-cutter comprises blades which are press-fitted into grooves in a body, the blades having portions 3b which are a sliding-fit to enable them to be introduced into the grooves. Keys 8 assist in retaining the blades.
Patent GB-980208-A (GB)
Title: Improvements in or relating to carrier telegraphy apparatus
IPC: H04L27/233
Filed: 1962-09-26
Abstract: 980,208. Telegraphy. GENERAL ELECTRIC CO. Ltd., and J. GRANT. Sept. 23, 1963 [Sept. 26, 1962], No. 36559/62. Heading H4P. In a frequency-shift telegraph receiver, received signals are mixed at 3 with a locally generated oscillation of much higher frequency, the upper side-band frequencies being selected at 5 for limiting prior to being fed to a discriminator 7. This mixing obviates difficulties in determining the precise mark-space transitions which would otherwise occur due to any differences in amplitude of the received signals, resulting from transmission characteristics. In a second embodiment, Fig. 2 (not shown), the filter output is also passed to a detector which feeds a clamp, the threshold of which is preselected. Should the amplitude of the mixer fall below the threshold level the output device, which the discriminator feeds, is prevented from operating. In a third embodiment, Fig. 3 (not shown), the signal from limiter 6 is mixed with the local oscillation again and the resultant lower sideband, i.e. the original received signal frequencies, fed to the discriminator.
Patent GB-1430827-A (GB)
Title: Electrostatic transducers
IPC: H04R19/00
Filed: 1973-08-02
Abstract: 1430827 Electrostatic transducers; diaphragms SONY CORP 2 Aug 1973 [4 Aug 1972] 36772/73 Heading H4J An ultrasonic electrostatic transducer for use in the frequency range 30 and 50 kHz comprises a flexible film of, e.g. polyethylene terephthalate having coated thereon a conductive layer so as to form a diaphragm 3 which is stretched over a support 5 of insulating material, e.g. acrylic acid resin or polyphenyl oxide resin, and the transducer is characterized in that the support has apertures 11 therethrough which are countersunk at the face of the support adjacent the diaphragm. This face of support 5 is coated with an aluminium layer 12 which covers the conical surfaces of the counterbores 11a and the aluminium surface is roughened. Such an arrangement is said to yield a level frequency response over the above mentioned range. The angle # of the counterbore is chosen to be in the range 10-40 degrees, 30 degrees being a preferred value. Connections to the device are made to the casing 2 and the bolt 13 and the device may be used as a transmitter or receiver, e.g. in the remote control of a television set.
Patent GB-964721-A (GB)
Title: New anti-bacterial o-hydroxy-or-phenyl-alkyloximes
Inventor: NICOLAUS BRUNO JOHN ROBERT
IPC: C07D333/44
Filed: 1961-10-13
Abstract: The invention comprises compounds of the formula: R-X-O-N = CHR1 in which R represents phenyl or hydroxy, X is an alkylene chain of 1 or 2 carbon atoms, optionally substituted with a lower alkyl of 1 to 8 carbon atoms inclusive and R1 represents a 4-nitrophenyl, 5-nitro-2-thienyl or 5-nitro-2-furyl radical; and a process for their preparation comprising refluxing a mixture of a hydroxylamine of the formula R-X-O-NH2 with an aldehyde of the formula R1CHO in an inert organic solvent, if desired in the presence of a catalyst which is commonly used to promote the formation of Schiff's bases. Hydroxylamines of the formula R-X-O-NH2 are prepared by reacting a haloderivative of the formula R-X-Halogen with hydroxyurethan HONHCO2C2H5 giving the intermediate substituted hydroxyurethan R-X-O-NHCO2C2H5 which is then subjected to alkaline hydrolysis. Specification 880,856 is referred to.
Patent GB-1473905-A (GB)
Title: Container and cover constructions for indicating removal of the cover
IPC: B65D43/02
Filed: 1974-08-22
Abstract: 1473905 Tamper-indicating container closure ILLINOIS TOOL WORKS Inc 22 Aug 1974 [24 Aug 1973] 36865/74 Heading B8T A plastics container body 10 has at its open end a vertical wall 22 joined through a top wall 24 to a depending outer wall 26a, 26b which terminates in an upwardly facing trough formation 28, 30, and is provided with a plastics cover 12 having an inner wall 14 joined to an outer wall 18 by a top wall 16, the cover outer wall projecting into the body trough formation and the cover and body inner walls co-operating in an interlocking fit, and a line of weakness being provided at the apex of the groove 34 in the body top wall 24. The groove may be continuous or discontinuous at spaced locations and may be in the underface (Fig. 2) or the upper face of the top wall 24 or may comprise opposed grooves in opposite faces of the top wall 24. Application of an upwardly directed force on the underside of the wall 28 causes severing along the line of weakness and the cover is forced out of contact with the container body. The cover may be reapplied but the removal of the trough formation during the severing operation is tamper-indicating.
Patent GB-1382627-A (GB)
Title: Hollow toy building block
IPC: A63H33/04
Filed: 1972-08-08
Abstract: 1382627 Toy building blocks DART INDUSTRIES INC 8 Aug 1972 [9 Aug 1971] 36932/72 Heading A6S A toy building block of prismic e.g. cubic shape, is in at least two parts 11, 12 connected by a hinge 33 and having fasteners 21, &c along their edges to hold the block closed. As shown, the block has lugs 21, 22 &c on flanges 38 along the edges of one part 12, to snap into recesses 26, 28, &c along the edges of the other part 11. The lugs 21, &c on one block may be snapped into the recesses 26, &c of another, like, block, Figs. 3, 4 (not shown). Ribs 13, 15 facillitate stacking. Instead of the block being divided into two parts by a plane passing through two opposite edges, as shown, it may be divided into two parts by a plane passing through two opposite walls. The block is made of a resilient plastics.
Patent GB-1282900-A (GB)
Title: Process for the preparation of proteases active in alkaline medium and products thereof
IPC: C12N9/56
Filed: 1969-07-23
Abstract: 1282900 Alkaline protease SOC INDUSTRIELLE POUR LA FABRICATION DES ANTIBIOTIQUES 23 July 1969 [24 July 1968] 36956/69 Heading C3H A process for the preparation of protease active in an alkaline medium comprises aerobically fermenting a strain of Bacillus szibtilis (licheniformis) variety Tracy (A.T.C.C. 10716) in a nutrient medium comprising at least one assimilatable carbon source, at least one assimilatable nitrogen source and the required mineral substance or substances, the medium having a pH of from 7À5 to 9À5 at the beginning of the fermentation step, and recovering the resulting protease from the medium. To recover the protease the medium may be acidified, filtered, treated with ammonium sulphate, and made alkaline; the precipitated enzyme is centrifuged off.
Patent GB-370079-A (GB)
Abstract: 370,079. Testing sensory and mental faculties. BROWN, H., 53, Bedford Square, London. Jan. 21, 1931, No. 2055. [Class 81 (ii).] An appliance for testing the faculty of the user to judge size by touch comprises a tray 1 with a centre pin 4 on which are mounted radially a series of flat strips 3 each formed with a hole. The relative radial position of the strips may be varied. The holes 3a . . 3f are of graduated size and a set of balls graduated in the same proportion is provided. The strips 3 are sufficiently close to the base of the tray to prevent the balls passing completely through the holes. The test is to place each ball in the corresponding hole, when blindfold.
Patent GB-922445-A (GB)
Title: Azoalkane thiophosphate derivatives
IPC: C09B43/40
Filed: 1961-10-16
Abstract: The invention comprises compounds of formula <FORM:0922445/IV(a)/1> where R and R1 are unsubstituted or substituted hydrocarbon residues or together form a cycloaliphatic residue, R11 and R111 are alkyl, alkoxy, aryloxy, substituted aryloxy, alkylmercapto, arylmercapto, aryl, alkylamino or dialkylamino radicals, X is oxygen or sulphur, and Y is halogen or another residue:  <FORM:0922445/IV(a)/2> Specified substituents include halogen, nitro and alkoxy.  They may be prepared by reacting an appropriate dihalogen azoalkane with an appropriate thiol group-containing phosphorus compound or a salt thereof.  The products are pesticides suitable for treating plants and animals.ALSO:Pesticidal compositions for the treatment of plants and animals comprise organophosphorus compounds of formula <FORM:0922445/VI/1> where R and R1 are unsubstituted or substituted hydrocarbon residues or together form a cycloaliphatic residue, R11 and R111 are alkyl, alkoxy, aryloxy, substituted aryloxy, alkylmercapto, arylmercapto, aryl, alkylamino or dialkylamino radicals, X is oxygen or sulphur, and Y is halogen or another <FORM:0922445/VI/2> residue, together with a solid or liquid carrier. Suitable substituents include halogen, nitro and alkoxy.  For preparation see Group IV (b).
Patent GB-1478186-A (GB)
Title: System for controlling the thickness of the metallic coating produced when hot-coating a metal strip
IPC: G01B15/02
Filed: 1974-08-27
Abstract: 1478186 Coating with metal by hot-dipping AUGUST THYSSEN-HUTTE AG 27 Aug 1974 [7 Sept 1973] 37367/74 Heading C7F [Also in Division G3 ] The thickness of hot coating applied to a metal strip 1, e.g. zinc on steel, is kept constant by varying the pressure applied to scraping nozzles 7, 8 in response to the output of an x-ray fluorescent thickness measuring device 9 which is relatively close to the nozzles, where the metal is still hot, and is enclosed in a cooled chamber 10 and is further cooled by gaseous medium blown between the device and the strip. The chamber with its  device 9 is kept at optimum distance, pre-set, from the strip by a motor 13 controlled by a pair of unspecified distance measuring devices 14, 15, and it may be withdrawn quickly if this distance unduly decreases or the temperature within the chamber exceeds a prescribed value. Control of the nozzle pressure is effected by an electronic circuit 17, to which is supplied the measured thickness X, the desired thickness W and a compensating signal Z corresponding to the actual distance of the device 9 from the strip. In this embodiment a nozzle 12 for the cooling air is outside the chamber, but in Figs. 2 and 3 (not shown) two such nozzles are arranged in the chamber and the measuring device within the chamber may be rapidly withdrawn by a piston in response to a rise in temperature or fall in cooling air-pressure. In Fig. 4 (not shown) a water cooling arrangement is described. The pressure at the scraping nozzles may also be varied in response to a measurement of their distance from the strip so as to keep their effect substantially constant. The device 9 responds to thermal x-rays emitted by the coating.
Patent GB-845203-A (GB)
Title: Improvements in magnetostrictive elements for electric contact relays
IPC: H01H55/00
Filed: 1956-12-10
Abstract: 845,203. Electromagnetic relays. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 10, 1956 [Dec. 13, 1955], No. 37604/56. Class 38 (5). [Also in Group XXXV] A magnetostrictive element 14 for a relay comprises a pair of elongated members 11, 12 cut from a single isometric crystal 10 of ferromagnetic material (e.g. iron, magnetite, or cobalt ferrite); alternatively, they may be cut from separate crystals of the same material, the members being cut from the crystal or crystals along different crystallographic directions such that they display opposite magnetostrictive coefficients but substantially identical temperature coefficients. As shown, Fig. 2, the cubic crystal 10 has its crystallographic axes aligned with its geometricl axes and is cut in half across a diagonal, the strips 11, 12 being cut in the directions shown from the diagonal face whereby they have, respectively, negative and positive magnetostrictive coefficients. The strips are copper plated and soldered to opposite sides of a brass strip 13 to form the element 14 which is mounted in a glass envelope 16 surrounded by a coil 21, energization of the coil causing deflection of the element so that contact 17 engages contact 18. In modifications (not shown) break contacts or change-over contacts are provided.