baber/WOPTO huggingface dataset:
Patent GB-1399139-A (GB)
Title: Alkyl esters of polyene antibiotics
IPC: A61K35/74
Filed: 1972-07-24
Abstract: 1399139 Atkyl esters of polyene antibiotics SOC PRODOTTI ANTIBIOTICI SpA 10 July 1973 [24 July 1972] 34497/72 Heading C2A The alkyl esters of polyene antibiotics are prepared by treating polyene antibiotics with a diazoalkane in the presence of a basic substance. The basic substance may be ammonia or an organic base and is preferably used in a stoichiometric to catalytic amount. The reaction is preferably carried out at a pH of 10 to 10À5, and at a temperature of 0 to 50 C. There is exemplified the preparation of (i) amphotericin B methyl ester, (ii) amphotericin B butyl ester, (iii) ayfactin methyl ester, (iv) candicidin methyl ester, (v) nystatin methyl ester, (vi) pimaricin methyl ester and (vii) the methyl and propyl esters of antibiotic DJ-400.
Patent GB-1107577-A (GB)
Title: Improvements in semiconductor diodes
IPC: H01L21/00
Filed: 1965-08-12
Abstract: 1,107,577. Semi-conductor devices. GENERAL ELECTRIC CO. 12 Aug., 1965 [4 Sept., 1964], No. 34610/65. Heading H1K. A semi - conductor diode comprises a pair of spaced opposed electrodes 2, 4, a glass, ceramic or like insulating casing 40 sealed to the electrodes to form an envelope therewith, a body 18 of monocrystalline semi - conductor material, preferably silicon, disposed between the electrodes and spaced from the casing, a layer 26 of insulating material, preferably silicon dioxide, on one of the major faces of the body, a contact button 50 of the same monocrystalline semiconductor material epitaxially formed on a portion of the face exposed by an aperture, 27 in. the layer 26 and overlapping the layer around the aperture a P-N junction 20 in the semi-conductor material between the protruding portion of the button and the opposite major face of the body, the periphery of the junction terminating at and being covered by the insulating layer, and electrically conductive metallic contact regions bonding the electrode 2 to the contact button and the electrode 4 to the opposite major face. The electrodes have sealing portions 6, 8 the end aces of which are plated or otherwise coated with metallic contact layers 14, 16 made of copper or silver or an alloy thereof, and the top of the button and the. bottom of the body are provided with solder layers 32, 30 adapted to make eutectic bonds with the contact layers at a temperature below the sealing temperature of the casing 40. Layer 32 preferably consists predominantly of silver which is electroplated on and alloyed in to the button, and layer 30 preferably consists of silver which may contain up to 1% of a doner impurity such as arsenic, to preclude the formation of a rectifying contact, and from 20 to 40% by weight of gold. Thin gold layers may be provided between the solder layers and the semi-conductor material. The semi-conductor body 18 comprises an N-type region 24 which may contain an N + region 25, and a thin P-type button 50 is epitaxially deposited or grown on the body 18 by any suitable process, e.g. the iodine vapour transport process. The P-N junction may be formed at or near the junction between the body and the button, thus eliminating the region 22.
Patent GB-921148-A (GB)
Title: Improvements in or relating to cases for containers
Inventor: HUMPHREY LESLIE FRANK
IPC: B65D75/04
Filed: 1960-10-11
Abstract: 921,148. Cartons. ALBERT E. REED & CO. Ltd. Sept. 27, 1961 [Oct. 11, 1960], No. 34801/60. Class 18. In a box or ease for a jerrican of the kind described in Specification 904,470, made from a blank there is a top flap 15 hingedly connected to the front side wall 6 of the box at a level adjacent the lower edge of the inclined wall 7 of the jerrican 2, and having an aperture 16 to fit its pouring neck 14, the flap having a hingedly connected extension flap 18 to extend across the top 11 of the jerrican and the flap 18 having a handhole 19 formed therein. This handhole registers with the corresponding back handhole 19 when the box is closed by sealing flap 18 to wall 4 e.g. with tape. The side walls 5 also have flaps 20 with handholes 21 to facilitate removal of the box from an outer easing. A further handhole 9 is formed beneath the box.
Patent GB-498554-A (GB)
Title: Improvements relating to spring mountings for the rear road wheels of motor cycles
IPC: B62K25/20
Filed: 1937-12-16
Abstract: 498,554. Spring frames for motorcycles. ARIEL MOTORS, Ltd., and ANSTEY, F. Dec. 16, 1937, No. 34840. [Class 136 (iii)] A spring mounting for the rear wheel of a motor-cycle comprises in combination, on each side of the wheel, a lever j arranged horizontally or nearly so at the rear end of the frame a, one end of the lever receiving one end of the wheel spindle m, as by means of a slot k, a fulcrum piece g having a pivotal connection, i with an intermediate part of the lever j means for carrying the fulcrum piece g on the frame so as to allow it to move in a vertical or approximately vertical direction, and means for attaching the other end of the lever j to the frame so as to allow this end to move in an approximately horizontal direction, as by means of a vertical link n or a horizontal guide, the movements of the parts being controlled by one or more springs. The fulcrum piece g is slidably mounted on a guide pin f secured in a bracket c formed on or attached to the rear end of the frame a, the sliding movement being controlled by a main spring h and a rebound spring or rubber buffer, with or without a vibration damper, such as an hydraulic damper combined with the guide pin mounting. The lever j is formed with a forked part passing around the bracket c, the pivot pin i extending across the forked part. The springs are enclosed in telescopic tubes t, u. The two levers j on opposite sides of the wheel may be interconnected by links &c. and controlled by a single spring or set of springs.
Patent GB-1420470-A (GB)
IPC: B65D41/62
Filed: 1973-07-25
Abstract: 1420470 Caps for bottles ETABS PIERRE REMY 25 July 1973 [28 July 1972 20 Oct 1972] 35348/73 Heading B8T A method for the manufacture of a bottle capsule 19 comprises displacing mono-oriented thermo-shrinkable synthetic plastics strip B in the direction of mono-orientation, marking or printing the strip, cutting the strip at B<SP>1</SP>, cutting the strip 8 along a line 9<SP>1</SP>, bending the strip 8 around a frusto-conical mandrel 10 so that the direction of mono-orientation is perpendicular to the cap axis, and closing the narrower end of the cone by gluing a disc 16 on the outside surface of the bent-in portion 8<SP>11</SP>. As shown, the cut strip is turned through 90 degrees before being applied to the mandrel. In another embodiment, bosses (20) are formed on the capsule 19, Fig. 3 (not shown), to prevent jamming in stacking or nesting. Again, the bosses may be extended forming a rib (21), Fig. 4 (not shown).
Patent GB-322101-A (GB)
Title: Improvements in or relating to stop valves
IPC: F22B37/42
Filed: 1928-12-01
Abstract: 322,101. Cockburns, Ltd., and MacNicoll, D. Dec. 1, 1928. Fluid-actuated valves.-A self-closing boiler isolating or stop valve is loaded by a spring 2 acting on a hand lever 3 mounted externally at the end of a shaft 5, to which is fixed an internal lever 6, this bearing on the valve member 1. The valve position is indicated by an index finger 10 carried on the lever 3 and registering with a quadrant on the valve casing. A pin 7 is provided to limit the valve lift, the pin being removable to allow the lever to be lifted further for test purposes. The socket for the pin 7 is so placed that it is masked by the lever when fully raised, thus preventing replacement of the pin. The valve may be positively closed by means of a hand wheel and threaded spindle 9, the position of the spindle being indicated by a disc 14 which registers with marks 15 and 16.
Patent GB-1487648-A (GB)
Title: Apparatus for the catalytic purification of exhaust gases of internal combustion engines
IPC: F01N13/02
Filed: 1975-08-28
Abstract: 1487648 Catalytic purifyer for I.C. exhaust DAIMLER-BENZ AG 28 Aug 1975 [5 Sept 1974] 35531/75 Heading BIF Apparatus for the catalytic purification of I.C. exhaust comprises a housing 10, at least one catalyst block 15, a separate insert casing 16 for each block by which the block is mounted in the housing and radially resilient elements 20 interposed between block 15 and casing 16, one open end at least of the housing being dimensioned to permit insertion of the casing or casings containing the blocks from that end and being detachably connected in use to a pipe-connection piece 12 by which the inserted casings 16  are secured axially in the housing. A radially resilient layer may be provided between the part of casing 16 of reduced diameter and housing 10.
Patent GB-472516-A (GB)
Title: Improvements in apparatus for tempering glass
IPC: C03B27/044
Filed: 1936-12-28
Abstract: 472,516. Tempering glass. LIBBEYOWENS-FORD GLASS CO. Dec. 28, 1936, No. 35537. Convention date, Dec. 26, 1935. [Class 56] [Also in Group XXX] Apparatus for tempering glass sheets in a horizontal position comprises a two-part furnace in which sheets are heated to the softening point first by gas and then by electricity, and a pair of blower heads 35, 36 arranged on opposite sides of a conveyer which comprises interleaved disc rollers which expose a large part of the supported surface to the cooling medium the rollers being driven by chains 24, 25. The blower heads are arranged to travel with the glass and to be oscillated by eccentrically mounted pivots 52, 53 driven by an electric motor 54. In a modification, the blowers are fixed and the glass is moved backwards and forwards between them. The Specification as open to inspection under Sect. 91, refers also to the use of conveyers as described in Specification 425,996, [Group XII], in which the rollers travel as a whole as well as rotating, and to the use of cooling means as described in Specification 472,908. This subject-matter does not appear in the Specification as accepted.
Patent GB-760956-A (GB)
Title: Improvements in and relating to hoists
IPC: F16C29/02
Filed: 1953-12-23
Abstract: 760,956. Guide rails for hoists. BRITISH HOIST & CRANE CO., Ltd., and EVANS, P. N. Dec. 21, 1954 [Dec. 23, 1953], No. 35735/53. Class 78 (3). The guide rails 10 for a hoist platform are of slotted tubular construction and are secured to scaffold members 15 by means of bolts 12, the heads of which are suitably shaped to pass through the slot 10d in one position and to abut behind the flanges 10e when turned through 90 degrees. The members 15 are secured to nuts 14, and shaped washers 13 are inserted between the nut and rail. Adjacent rail sections are joined by a pair of bolts 12 passing through a fish plate, Fig. 1 (not shown), which replaces washers 13. In a modification (not shown) the adjacent sections are joined by members inserted therein.
Patent GB-1069997-A (GB)
Title: Cutting sheeting
IPC: B26D1/24
Filed: 1964-09-02
Abstract: 1,069,997. Cutting-apparatus. BADISCHE ANILIN- & SODA-FABRIK A.G. Sept. 2, 1964 [Sept. 6, 1963], No. 35878/64. Heading B4B. Apparatus for cutting sheeting, e.g. plastics film comprises cutter wheels 3 mounted loosely on a guide shaft 1 so as to be capable of rotational and axial movement and cutter wheels 5 mounted on a driven shaft 4, with the interposition of rubber spacers 7, the wheels 5 and spacers 7 being pressed together by means of a nut 10. In a modification, the wheels (3, Fig. 2) are secured loosely on the shaft (1) in hubs (13) by means of discs (14) and tension rings (15).
Patent GB-925840-A (GB)
Title: Improvements in or relating to slub catchers of texile machinery
Inventor: ABBOTT SAMUEL LEBARON
IPC: B65H63/06
Filed: 1960-10-20
Abstract: 925,840. Slub catchers. ABBOTT MACHINE CO. Inc. Oct. 20, 1960, No. 35971/60. Class 120 (2). A slub catcher comprises two blocks 40, 41, Fig. 4, between which a yarn can travel along a normal path Y, Fig. 5, the blocks having a deflecting edge 101 for causing slubs S, Fig. 6, to be deflected away from the yarn path Y and into a tapering slub catching gap between the forward portions of the blocks 40, 41, there being an escape passage 100 for nibs or knots, Fig. 7, that commences at a point along the deflecting edge 101 and leads back toward the normal yarn path Y to deflect the nib or knot away from the slub catching section. The blocks 40, 41 are embodied in a modification of the slub catching device disclosed in Specification 680,766 in which the block 40 is stated to slide infrequently relatively to the block 41 to clear the normal yarn passage of fly. In place of, or in addition to, this infrequent sliding movement provision is now made for a more frequent but shorter sliding movement of the block 40 transversely of the normal yarn path. Specification 717,907, 918,787 and 822,520 also are referred to.
Patent GB-819823-A (GB)
Title: Improvements in carbon black process
IPC: C09C1/48
Filed: 1956-11-26
Abstract: <PICT:0819823/III/1> In the furnace production of carbon black, the black produced is shock cooled to at least 1500 DEG  F., preferably to below 1200 DEG  F., solely by means of an indirect heat exchanger situated within the shock cooling chamber.  As shown a suspension of black in by-product combustible gas passes from a reactor 10 to a cooler 12 provided with a heat-exchange coil 14 through which is passed water, a molten salt or a gas.  The heated exchange medium is cooled in a waste heat boiler 18.  The cooled suspension is optionally further cooled by passage through an air-cooled tube 20 provided with a spiral radiator fin.  The black is separated in cyclones 22 optionally followed by filter 24.  The tail gas is burned, if desired together with auxiliary fuel from line 29, in chamber 28 and thereby preheats the air required for the combustion. Before mixing with the tail gas, the heated air passes through a turbine 32 which operates air compressor 30 and an electric generator 34.  The waste gases from chamber 28 may pass to waste heat boiler 18.  Excess tail gas and hot air may be withdrawn through pipes 36 and 38 respectively.  Specifications 402,322 and 607,296 are referred to.
Patent GB-378759-A (GB)
Title: Process for the manufacture of aliphatic and hydroaromatic oxides
Filed: 1931-12-31
Abstract: Aliphatic and aromatic oxides are produced by passing the vapour of a compound containing adjacent halogen and hydroxy groups over a catalyst comprising a metal oxide or salt, which may be supported on a carrier such as kieselguhr or pumice.  Other vapours such as steam may be mixed with the vapour of the halogen-hydroxy compound.  In examples (1) ethylene oxide is produced by passing ethylene chlorhydrin over magnesia upon a carrier such as kieselguhr at 250 DEG  C.; (2) menthene oxide is produced by passing chlormenthol and steam over copper phosphate on pumice at 300-330 DEG  C.  The Specification as open to inspection under Sect. 91 (3) (a) is not limited as to the nature of the catalyst.  This subject-matter does not appear in the Specification as accepted.
Patent GB-914795-A (GB)
Title: 21-methyl steroids
IPC: C07J9/00
Filed: 1960-10-21
Abstract: The invention comprises (1) a process for the preparation of 9a -fluoro-21-methyl-D 1,4-pregnadien - 11b ,17a ,21 - triol - 3,20 - dione 21-acylates, their D 4-analogues and the 6a -fluoro analogues of these compounds by reacting the corresponding 9b ,11b -oxido-steroids with an excess of hydrogen fluoride at a temperature between about -70 DEG C. and 30 DEG C. in the presence of an organic proton acceptor, such as an alkanol, dioxan or tetrahydrofuran, which process may be combined with the preparation of the oxido-compounds by reacting the corresponding 9a  - bromo-11b -hydroxysteroids with from about a molar equivalent to about a 200% molar excess of sodium or potassium acetate at a temperature between about 20 DEG C. and 75 DEG C., the bromo-compounds in turn being prepared by reacting the corresponding D 9,11-steroids with hypobromous acid at a temperature between about 20 DEG C. and 40 DEG C., and the D 9,11-compounds being in turn prepared by reacting 21 - iodo - 21 - methyl-D 1,4,9(11)-pregnatrien-17a -ol-3,20-dione, the D 4-analogue thereof or the 6a -fluoro analogues of these compounds with the sodium or potassium salt of an organic acid containing at most 5 carbon atoms at a temperature between about 40 DEG C. and 100 DEG C.; and (2) as new compounds, the D 9,11-steroids and 9b ,11b -oxido-steroids which are intermediates in the above reaction sequence.  The hypobromous acid is preferably generated in situ by treatment of N-bromo-acetamide or -succinimide with a strong acid.  Detailed examples are given.  21 - Iodo-21-methyl-D 1,4,9(11)-pregnatrien-17a -ol-3,20-dione is prepared by dehydrogenating 21 - methyl - D 4,9(11) - pregnadien-17a -ol-3,20-dione, either with selenium dioxide or by microbiological means, to give 21-methyl-D 1,4,9(11)-pregnatrien-17a -ol-3,20-dione and then treating this with calcium oxide and iodine in tetrahydrofuran and an alkanol, in presence of tertiary-butyl hydroperoxide.  The D 4-analogue of the 21-iodo compound is prepared similarly, the dehydrogenation step being omitted; and the 6a -fluoro analogues of all these compounds are similarly prepared from the appropriate 6a -fluoro starting material.
Patent GB-767722-A (GB)
Title: "improvements relating to the production of petroleum jelly"
IPC: C08L91/08
Filed: 1953-12-30
Abstract: A petroleum jelly consists of a mixture in approximately equal proportions of a bright stock residual oil having a V.I. not greater than 90 and a viscosity at 140 DEG F. greater than 150 cs., and a slack wax derived from a bright stock residual oil having an unworked penetration of 50-90 mm./10, an oil content of 0-25 per cent. and a congealing point of 148-170 DEG F.  Up to 70 per cent, and preferably 50 per cent, of the residual oil may be replaced by a distillate oil having a V.I. of 65-80 and a viscosity at 140 DEG F. of 30-50 cs.; part of the slack wax, preferably two-fifths, may be replaced by a slack wax derived from a distillate oil boiling above 480 DEG F., having an oil content of 0-40 per cent, and a congealing point of 125-150 DEG F.
Patent GB-1165334-A (GB)
Title: Improvements in or relating to Thiadiazepine
Inventor: RANISTEANO SYLVIE
IPC: C07D285/36
Filed: 1966-08-12
Abstract: 1,165,334. Diphenyl dihydro thiadiazepines. SOC. D'ETUDES DE RECHERCHES ET D'APPLICATIONS SCIENTIFIQUES ET MEDICALES. 4 Aug., 1967 [12 Aug., 1966], No. 36306/66. Heading C2C. Novel 2,7 - dihydro - 3,6 - diphenyl thiadiazepines of formula wherein R 1  and R 3  are H or OH, and R 2  and R 4  are each halogen, oxyalkylcarboxylic, acylamino, esterified carboxylic or carboxyamino groups, are prepared by (1) acylating an appropriately substituted aromatic ring, either by Frieded-Crafts reaction with a halogenated acid chloride or a Friess reaction when a phenolic OH group is present, to give a halogenated ketone; (2) reacting this product with Na 2 S to give a di-aromatic acyl sulphide; (3) cyclizing the latter with hydrazine hydrate to give the required thiadiazepine, which may be converted to its salts, such as the ethanolamine and hydroxyethylpiperazine salts, or esterified.
Patent GB-1319656-A (GB)
Title: Eyepiece
IPC: G02B25/00
Filed: 1970-07-27
Abstract: 1319656 Optical lens systems R RODENSTOCK [trading as OPTISCHE WERKE G RODENSTOCK] 27 July 1970 [25 July 1969] 36339/70 Heading G2J An eyepiece as shown has an image angle of approximately 55 degrees, and comprises in order from object side to image side, a lighttransmitting element, a prism, and four collecting lenses, the two inner being simple lenses, and the two outer cemented, compound lenses, the eyepiece having the following data:- r 1  = #; d 1  = 0À25- 0À28; r 2  = #; 1 1  = 0À02-0À06; r 3  = #; d 2  = 1À7-1À8 plus 1À7-1À85; r 4  = #; l 2  = 0À05-0À15, r 5  = #; d 3  = 0À05-0À08; r 6  = - 0À03 - -0À09; d 4  = 0À5-0À6; r 7  = + 0À3-+0À4; l 3  = 0-0À2; r 8  = + 0À14-+0À18; d 5  = 0À3- 0À4; r 9  = + 0À1-+0À18; l 4  = 0-0À02; r 10  = + 0À3-+0À4; d 6  = 0À25-0À45; r 11  = -0À14-+0À03; l 5  = 0-0À02; r 12  = + 0À4-+0À5; d 7  = 0À2-0À6; r 13  = - 0À03-+0À12; d 8  = 0À15-06; r 14  = 0À15--0À35; d 9  = 0À35-0À50; r 15  = 0À8--1À1. Optical data are given for two examples.
Patent GB-361138-A (GB)
Title: Improvements in or relating to gelatine food preparations
IPC: A23L29/281
Filed: 1930-12-03
Abstract: In making gelatine food products of the aqueous jelly type, an edible salt is added to decrease appreciably the time of setting of the jelly and increase its melting time and permanence.  The salt added may be a neutral, an alkaline, or a buffer salt, e.g. sodium chloride, sodium or other tartrate, phosphate, or citrate, or pyrophosphates, malates or acetates.  The amount of salt may be insufficient to affect perceptibly the taste.  Where an acid is included to add tartness, a buffer salt or a mixture of buffer salts can be added in amount sufficient to decrease the setting time without affecting the taste; for example 0,75 gm. of a mixture in equal parts of mono- and di-sodium phosphate is added to 12 gm. of gelatine which is sufficiently acid to retain its tartness, the setting time of the jelly being reduced by half. Strongly alkaline salts can be added to a product containing excess of acid.  The salt may be added to the gelatine during its manufacture, or to gelatine dessert powders or other gelatine preparations.
Patent GB-966785-A (GB)
Title: Isomerisation process
IPC: C07C5/22
Filed: 1961-10-11
Abstract: Olefins capable of undergoing double bond migration are isomerized in the presence of a halogenated alumina, obtained by contacting alumina at elevated temperature with a halogenated organic compound preferably a halogenated methane such as those described in Specifications 953,187 and 956,684.  The olefin may be mono- or poly-olefin preferably of 4-6 carbon atoms and isomerization is effected at up to 300 DEG  C. at any pressure in the vapour phase and preferably in the presence of nitrogen. The catalyst may contain up to 50% of an oxide of an element of Group II-V and a hydrogenating metal or compound thereof of Group VIa or VIII, and preferably contains fluorine in an amount of at least 1% up to 3.4 x 10-4 grams/sq. metre of surface area.  The isomerization effected is usually double bond migration without skeletal rearrangement.  The isomerization of 4-methylpentene-1 to 2-methylpentene-1 and -2 is exemplified.