baber/WOPTO huggingface dataset:
Patent GB-923904-A (GB)
Title: Novel androstane derivatives and process for their manufacture
IPC: C12P33/00
Filed: 1959-11-13
Abstract: The invention comprises steroids of the formula <FORM:0923904/IV(a)/1> (wherein the 1,2-double bond is optional, X is hydrogen, fluorine, chlorine or bromine, Y is keto or H(b OH) or together with X is an additional 9(11)-bond or a 9b ,11b -oxido group, and Z is keto, H(b OH) or esterified H(b OH)) and their preparation by submitting a steroid of the formula <FORM:0923904/IV(a)/2> (wherein X1 and Y1 have the same significance as X and Y respectively, and Z1 is an ethyl radical bearing an oxygen function in the 20-position or 20- and 21-positions), to degrading oxidation to form the corresponding 17-keto compound followed, if required, by (a) reduction to the 17-ol and, if desired, esterification of the latter; (b) hydrogenation or dehydrogenation in the 1,2-position; (c) reduction of 11-keto to 11a - or 11b -hydroxy; (d) one or more of the processes of dehydration, addition of hypohalogenous acid, dehydrohalogenation, and epoxide scission by means of hydrogen halide, of or to the 9H,11-hydroxy, 9(11)-ene, 9b ,11b -oxido or 9a -halogeno-11b -hydroxy compound, to form another of these compounds except the first; and (e) oxidation of 11-hydroxy to 11-keto.  Degradation of the side chain may be effected with sodium bismuthate, chromic acid, periodic acid or lead tetraacetate, for example, although the use of strong oxidizing agents such as chromium trioxide also results in oxidation of 11b -hydroxy to 11-keto. Introduction of a D 1-double bond may be affected microbiologically or chemically, e.g. with selenium dioxide or the use of bromine followed by dehydrobromination.  Reduction of the 17-ketones to the 17-ols may be effected with Saccharomyces cerevisiae, or chemically with a metal hydride.  11-Alcohols may be converted to D 9(11)-compounds by conversion to sulphonic esters followed by elimination of the elements of the particular sulphonic acid, a 21-hydroxy group, if present, being protected by esterification. 11-Ketones may be reduced to 11-ols by standard procedures, other keto groups being protected by ketal formation, and 11-ols may be oxidized to 11-ketones with, for example, chromic acid.  Detailed examples are provided, and esters with acetic, propionic, butyric, trimethyl-acetic, t-buyl-acetic, phosphoric, succinic and sulphobenzoic acids, and sodium salts thereof, are also referred to. 9a -Chloro- and bromo-16a -methyl-prednisolones are prepared by dehydrogenation of 9a -chloro- and bromo-16a -methyl-hydrocortisones with Corynebacterium simplex.  16a -Methyl-4,9-(11)-pregnadiene-17a ,21-diol-3, 20-dione-21-acetate is prepared by dehydration of the corresponding 11a - or 11b -ol.  The steroids of the invention, which are stated to be useful in the treatment of mental depression and to exhibit anti-inflammatory properties, may be made up into pharmaceutical compositions with suitable carriers.  Tablets, elixirs, suspensions and solutions are mentioned.  Specification 807,227 is referred to.
Patent GB-1459550-A (GB)
Title: Liquid droplet printers
IPC: H04N1/034
Filed: 1974-09-05
Abstract: 1459550 Ink jet printing INTERNATIONAL BUSINESS MACHINES CORP 5 Sept 1974 [26 Sept 1973] 38781/74 Addition to 1403276 Heading B6F An ink droplet printer comprises means 11 directing a series of like droplets 10 along a path, and means 14, 15 establishing a deflecting field which encompasses the series of droplets 10, the deflecting field being established for a predetermined time to subject each droplet in the series to the field for different times. The droplets 10 may be electrostatically charged for deflection by an electrostatic field, or magnetized for deflection by a magnetic field. Unwanted droplets may be selected by leaving them uncharged, or by subjecting them to an individual rejecting field acting perpendicular to the deflecting field.
Patent GB-1088765-A (GB)
Title: Improvements relating to temperature sensitive switching devices
Inventor: BRIGHT DAVID PENDERELL
IPC: H01H51/28
Filed: 1964-09-23
Abstract: 1,088,765. Magnetic switches. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Sept. 23, 1965 [Sept. 23, 1964], No. 38789/64. Heading H2B. A temperature-sensitive sealed magnetic reed contact unit has incorporated in the reeds thermomagnetic material. The material may be ferromagnetic at low temperatures and non- ferromagnetic at high temperatures, e.g. a 70-30 annealed nickel-copper alloy or may be non-ferromagnetic at low temperatures and ferromagnetic at high temperatures, e.g. an equiatomic iron-rhodium alloy. The overlapping ends of the reeds may be made of the thermomagnetic material, may be clad with it, or have inserts of it. The contact unit may have a magnetizing coil or a permanent magnet. The unit will be operated by the magnetizing member in dependence of the temperature. The units may be spaced along a power cable to detect local overheating and sound an alarm.
Patent GB-1127903-A (GB)
Title: Suspension polymerization process and product
IPC: C08F4/28
Filed: 1965-09-14
Abstract: 1,127,903. Suspension polymerization process for producing dyeable polymers. MONSANTO CO. 14 Sept., 1965 [21 Sept., 1964], No. 39171/65. Heading C3P. Dyeable vinyl polymers have attached to the ends of the polymer chains ionizable groups of formula -COOM, -OSO 3 M or -SO 3 M, where M is H, NH 4  or an alkali metal, the ionizable groups being present in a proportion of 64 microequivalents per gram of polymer, and the ratio of -COOM groups to the sum of the -OSO 3 M and -SO 3 M groups being from 0À8 to 1À5. The polymers are obtained by polymerizing at least one mono-olefinically unsaturated vinyl monomer in aqueous suspension in the presence of (a) a redox catalyst comprising an oxidizing component and an oxidizable sulphoxy activator, (b) an ammonium or alkali metal salt and (c) at least one C 8 -C 18  fatty acid or salt thereof. The vinyl monomer preferably comprises acrylonitrile, most preferably together with vinyl acetate and styrene. Ferrous ions (as ferrous sulphate) may also be included in the polymerization. The oxidizing component of catalyst (a) may be a perborate, perchlorate, persulphate or persulphuric acid; and the activator may be sulphur dioxide, sodium bisulphite, hydrosulphite or thiosulphate, a dialkyl sulphite, p-toluenesulphinio acid or formamidine sulphinic acid. The salt (b) is preferably a salt of a strong mineral acid, e.g. sodium sulphate, and component (c) may be sodium stearate. Polymerization is preferably effected at a pH of about 2. The acrylonitrilevinyl acetate-styrene copolymers are obtained in bead form and can be spun into readily dyeable fibres.
Patent GB-1344968-A (GB)
Title: Arrangement for fastening a vibrating string to a part of a  measuring apparatus
IPC: G01L1/10
Filed: 1972-08-23
Abstract: 1344968 Vibration isolators WIRTH GALLO & CO 23 Aug 1972 [23 March 1972] 39210/72 Heading F2S [Also in Division G1] A device for fastening a vibrating string to the frame 8 of a measuring instrument, e.g. a weighing balance or a dynomometer comprises a fastening lead 3 connected to the frame by a flexurally and torsionally elastic connecting member in the form of a rod 4 which is disposed at least partly outside the straight line G connecting the point of attachment 5 of the rod to the frame with the centre of gravity S of the fastening lead. It is stated that the device reduces the transfer of energy from the vibrating string to the frame and prevents vibrations at the string frequency and existing in the frame from interfering with the vibrations of the string. In an alternative embodiment, Fig. 3, the connecting member is a V-shaped rod 10 connected directly to the frame 8. In Fig. 6 (not shown) there are two such rods. In Fig. 4 (not shown) the connecting member is a U- shaped flat rod produced by stamping. In Fig. 5 (not shown) the connecting member is a cylindrical shell with two transverse grooves cut out. In Fig. 7 (not shown) the transverse grooves are replaced by helical slots.
Patent GB-1438714-A (GB)
Title: Sheet feeding apparatus
IPC: B65H1/16
Filed: 1973-08-21
Abstract: 1438714 Feeding sheets ENGINEERING COMPONENTS Ltd 21 Aug 1974 [21 Aug 1973] 39399/73 Heading B8R A pile support 4 is raised along rails 9 by air admitted to the lower part of cylinder 11, until the top sheet of the pile 5 abuts a valve 19, whereupon air is admitted to the upper part of the cylinder 11 to balance the upward pressure, the valve 19 having a bleed facility so that a slight upward pressure is obtained. When a sheet is separated, the valve 19 allows further upward movement. Sheets are separated from the top of the pile by a reciprocating friction pad 15 operated by a pneumatic cylinder 16 pivoted at 17, a pneumatic cylinder 18 acting to raise the pad 15 clear of the pile during its return stroke. A sheet separated from the pile is advanced over a feed table 23 and by rollers 6 to a press 7. Double feed is prevented by a rod 24 defining a gap with the table 23 and mounted on eccentric bearings so as to be adjustable. A sheet in the press actuates a detector to prevent feed of the next sheet, and removal of the sheet from the press initiates the feed of the next sheet.
Patent GB-999357-A (GB)
Title: Converter-tipping gear
IPC: C21C5/50
Filed: 1963-10-08
Abstract: 999,357. Tilting metallurgical converters. DEMAG A.G. Oct. 8, 1963 [Oct. 11, 1962], No. 39704/63. Heading F4B. Tilting gear for a metallurgical converter 1 comprises a gear-wheel 4 on one or both trunnions la enclosed by a casing 2 and rotated by pinions 4a on shafts arranged symmetrically around the trunnion 1a and each driven by a motor 7 through reduction gearing 1, the lower part of the casing incorporating a torque shaft 2a disposed between spherical bracket claws 3c. The reduction gearing or the gearing and motor 7 may be mounted on a bracket attached to casing 2, Fig. 3 (not shown), or the motors may be disposed below the converter charging platform vertically below the gearing, Fig. 4 (not shown).
Patent GB-1114190-A (GB)
Title: Improvements in the flavour of seasonings,beverages and foods
IPC: A23L27/23
Filed: 1966-09-06
Abstract: The taste of foods, beverages or seasonings is enhanced by incorporating therein glycine and a 51-nucleotide. Compositions suitable for incorporating in foods and beverages comprise glycine and (1) sodium 51-inosinate, (2) sodium 51-guanylate, (3) sodium L-glutamate and sodium 51-guanylate, (4) salt and sodium 51-adenosine triphosphate, (5) salt, sodium L-glutamate, sodium L-aspartate and sodium 51-adenylate or (6) cane sugar, glucose, mannitol and sodium 51-inosinate.
Patent GB-1447375-A (GB)
Title: Glazing
IPC: E06B3/64
Filed: 1973-08-23
Abstract: 1447375 Glazing WILLIAM COX Ltd 23 Oct 1974 [23 Aug 1973] 39996/73 Heading E1R Glazing panels 8, 13 are clamped at the edges between members 1, 2 and 3 using sealing gaskets 9, 14. Members 2 and 3 are spaced apart by the heat insulating spacer 16. The whole is held together by bolts 37 (head only shown) engaging in the serrated walls of the slot in 20'. Fig. 2 (not shown illustrates a single-glazing arrangement.
Patent GB-1270790-A (GB)
Title: Automatic lighting device
Inventor: SHIMIZU KUNIO
IPC: F21L4/00
Filed: 1970-08-20
Abstract: 1,270,790. Electric battery lamps; signalling lamps. K. SHIMIZU. 20 Aug., 1970, No. 40116/70. Heading F4R. A battery-powered signalling lamp of the kind which lights automatically when it is thrown into water comprises a casing 10 having holes 12 at the bottom for the ingress of water, an elastic diaphragm 30 fixed inside the casing just above the holes to limit the extent of water penetration, a movable switch contact 45 adapted to be brought into engagement with a fixed switch contact 46 when the diaphragm is forced upwards by water pressure, and air pressure balancing means situated near the top of the casing, at a point which is above water when the lamp is floating, to maintain the air pressure in the chamber 50 above the diaphragm 30 at the same level as that of the surrounding atmosphere the means being permeable by gas but impervious to water. The provision of such means prevents a build-up of pressure in the chamber 50 which could depress the diaphragm 30 and open the switch. The means may comprise a plurality of vent holes 21 covered by a band 22 of material such as tanned leather or polyethylene which is permeable by gas but impervious to water, or an annular section of the casing 10 which is itself made of such material. The source of light may be an incandescent filament lamp 41 or a neon discharge tube, and a transistorized flashing circuit may be provided. A photo-cell may be employed to switch the lamp off during daylight. A push-button 56 is provided at the bottom of the casing to test the switch when required, and the top of the casing is closed by a bulbous lens 11 and a reflector 16.
Patent GB-1102956-A (GB)
Title: Improvements in bench vices
Inventor: BLAIR GEORGE
IPC: B25B1/10
Filed: 1963-10-11
Abstract: 1,102,956. Vice. GEORGE BLAIR & CO. Ltd. 8 Oct., 1964 [11 Oct., 1963], No. 40203/63. Heading B3B. A vice comprises a cast head 5 carrying a jaw-insert 7, and three pieces 2, 3, (4) of steel strip welded together and to the head to form a guide. The screw 13 is secured to the head by a split-pin 15. The nut 40 is secured by a screw 59.
Patent GB-1476236-A (GB)
Title: Step motor
IPC: B41J19/30
Filed: 1974-09-17
Abstract: 1476236 Stepping motors INTERNATIONAL BUSINESS MACHINES CORP 17 Sept 1974 [20 Sept 1973] 40348/74 Heading H2A A stepping motor has 2n + 1 poles or pole pairs (n being a positive integer greater than or equal to one, a winding associated with each pole or pole pair, a circuit for selectively energizing the windings to step the motor in such a way that the winding selected in any step produces flux in at least one pole or pole pair associated with a winding selected in the previous step, that flux being in the same direction as the previous step and wherein each pole or pole pair forms part of the magnetic circuit for at least two other poles or pole pairs, but not necessarily in the same motor step. In a linear motor a magnetic stator 1 has teeth of pitch Pt and width Wt along each side facing pole members 7, 7<SP>1</SP> each carrying three poles ABC, A<SP>1</SP>B<SP>1</SP>C<SP>1</SP>. Each pole has an associated winding including two oppositely wound coils. Each coil is connected in series with a corresponding coil on the opposite pole (Fig. 4 not shown) such that by selecting one coil pair and/or the other provides flow in either direction. The poles have toothed faces of pitch Pt and width Wt and the gap between poles is (m + 1/3) Pt where m is an integer. The motor is stepped by energizing a pair of coils on each pole successively, so that the teeth of that pole align with the stator teeth. To maintain the flux through the last energized pole pair in the same direction in the following step, the pole pairs are energized in the opposite direction each time they are selected. That is pole pair A-A<SP>1</SP> would be energized every third step, the flux directions being the same every sixth step. The coils may be energized in pairs e.g. AB, BC, CA &c. or in single/double phase i.e. A, AB, B, BC &c. The principle may apply to rotary machines.
Patent GB-984497-A (GB)
Title: Bearing assembly
Inventor: DIVER BERNARD
IPC: F16C19/56
Filed: 1963-10-15
Abstract: 984,497. Bearings; lubricating. ROLLSROYCE Ltd. Oct. 15, 1963 [Jan. 9, 1963; April 4, 1963], Nos. 40552/63 and 40553/63. Divided out of 961,522. Heading F2A. [Also in Division F1] A bearing assembly comprises a fixed annular outer race, a rotatable annular inner race which is mounted concentrically within the outer race and is spaced therefrom by rolling elements which are in rolling contact with the inner and outer races, rotatable shafting which is mounted in and secured to the inner race, an annular member which is mounted securely within the shafting and which is provided with a number of angularly spaced-apart pockets each of which communicates with the inner circumferential surface of the annular member, means for supplying the inner circumferential surface with lubricant, and lubricant passages which are formed in said shafting and inner race and which lead from at least some of the pockets to the rolling elements, at least the said same pockets being formed so that, in operation, they both retain a quantity of lubricant therein and also direct a supply of lubricant into the lubricant passages and so to the rolling elements. The subjectmatter repeats that of Specification 961,522 but in addition, as shown in Figs. 6 and 7, there is a modification in which an annular member 91b has pockets 92b therein, each of which has a wall 126 over which lubricant flows and which prevents reverse flow of lubricant from the pocket. Each pocket 92b has also a radially outwardly extending surface 127 over which lubricant is centrifugally forced in passing into a respective drilling 93b.
Patent GB-1400204-A (GB)
Title: Electrical connector
IPC: H01R13/40
Filed: 1972-09-01
Abstract: 1400204 Two part couplings BUNKER RAMO CORP 1 Sept 1972 [3 Sept 1971] 40749/72 Heading H2E In a two part coupling 10, 12 mating members 26, 33 are made, respectively, of PTFE or similar self-lubricating fluorocarbon which becomes soft at high temperatures and of metal, aromatic polysulphone or other material which remains rigid at high temperatures. This combination of materials is stated to avoid the locking of the two parts together, due to distortion of two mating PTFE members, in a prior art arrangement. As shown, member 33 is of metal and also serves as an outer contact, mating with spring fingers 27. The PTFE member 26 comprises a ridge 30 which becomes squashed to provide a friction grip and a seal. Pin contact 14 is held in position by a collar 53 and by a beryllium-copper clip 54 which has portions 55, 57 to prevent rearward and forward movement of contact 14, respectively. Clip 54 is in turn held by a rear insulator 62. After a cable has been connected, the rear end of the connector 10 is filled with potting compound to retain members 62, 54, 14 and 26. Socket contact 16 comprises a split portion 80, biased by a spring 83 and a hood 84 to limit outward deflection. Contact 16 is fixed by means of an irregular surface 25 and is connected to a ring 24. Alternatively a socket contact (79, Fig. 2, not shown) may be in the connector half having the PTFE member (40) and may be fixed by a clip like the pin contact 14. One connector half (15, Fig. 2, not shown) may incorporate a glass insulator (85) as part of a hermetic seal.
Patent GB-1275781-A (GB)
Title: Polycyclic compounds
IPC: C09B57/00
Filed: 1969-08-14
Abstract: 1275781 3 - Amino - indazole - 5 - sulphonic acid CIBA-GEIGY AG 14 Aug 1969 [15 Aug 1968] 40760/69 Heading C2C [Also in Division C4] In Example 42 3-aminoindazole-5-sulphonic acid is prepared by sulphonating 3-aminoindazole with sulphuric acid containing 15% SO 3  at room temperature. The product precipitates by pouring on to crushed ice.
Patent GB-1521620-A (GB)
Title: Drive arrangement for wind up apparatus in a circular knitting machine
IPC: D04B15/88
Filed: 1976-10-01
Abstract: 1521620 Knitting machines ASA SA 1 Oct 1976 [1 Oct 1975] 40769/76 Heading D1C A cylinder and dial knitting machine with rotary cylinder and dial comprises at least two take-down rollers rotatable with the cylinder and dial by means which, in use, lie within the knitted tube. The take-down shown comprises rollers 2, 3, 4 mounted in a frame I mounted to rotate on bearings on a fixed axle 5. The fabric is spread to its required width by cloth expander 8 secured to dial 11 by leaf springs 12 and carrying a blade 13 which engages between rollers 2 and 3 to rotate the take down. The rollers are rotated to take down the fabric by a series of belts and pullies driven by the rotation about axle 5.
Patent GB-1013970-A (GB)
Title: Collapsible liquid storage containers
Inventor: SHEAD EDWARD OLAF
IPC: B65D90/04
Filed: 1963-10-18
Abstract: 1,013,970. Collapsible pools. P. B. COW & CO. Ltd. Nov. 5, 1964 [Oct. 18, 1963], No. 41248/63. Heading A4N. The wall pressure, in an inflatable tubular walled storage container, is equalised by welding in a wall line 4 to provide an air cushion 7. The liner 4 takes up the dotted line position 10 when the container is empty and is inflatable through valve 8. The upper edge of the liner may be welded to a tube 2 near the topmost tube.
Patent GB-1281521-A (GB)
Title: Sliding door construction and sections for use therein
Inventor: BUNKER MEL
IPC: E06B3/46
Filed: 1968-08-29
Abstract: 1281521 Cabinets; ornamenting furniture W G COX & SON Ltd 29 Aug 1969 [29 Aug 1968] 41301/68 Headings A4B and A4U [Also in Division E1] An H-section member 4 for use as a guide for a sliding door D comprises end flanges 5, 6 extending on each side of an intermediate web 7 to define a pair of oppositely open channels one of which has its facing inner walls underent to define ledges 10 for snap-engagement with hooks 14 at the ends of flexible legs 13 of a capping member 11, the H-section member 4 having an integral barbed rib 2 by which it may be secured to a shelf 1 or other fitting. The member 4 includes an intermediate flange 8 to divide each channel into two grooves which each receive a sliding door D. The front flange 5 may have a decorative corrugation 9. The hooks 14 may be continuous or discontinuous along the length of the capping 11. The channels are of unequal depth.
Patent GB-1119213-A (GB)
Title: Semiconductor mechanical-to-electrical transducer
IPC: G01L9/00
Filed: 1965-09-29
Abstract: 1,119,213. Measuring pressure electrically. TOYOTA CHUO KENKYUSHO, K. K. Sept. 29, 1965 [Sept. 29, 1964; Oct.29, 1964], No.41313/65. Heading G1N. [Also in Division H1] A piezo-resistive transducer has two resilient diaphragms mounted parallel to one another and, with a side wall, forming a capsule within which the semi-conductive transducing elements are mounted. At least one element is attached to each diaphragm. The capsule is placed in a medium the pressure of which is to be measured. By the use of diaphragms of unequal thickness in association with a bridge circuit to provide an output representing the difference between the signal of the indentical transducers on the two diaphragms, the effect on the output of the variation of semi-conductor resistivity with temperature is eliminated. The transducers of Figs. 5-7 (not shown) and of Figs. 15-17 (not shown) and 18 have two rimmed diaphragms 21,24. Typically, one diaphragm may be three times the thickness of the other. They may be of carbon-steel and carry monocrystalline N-type germanium elements 27a-d bonded to the diaphragm with an insulating adhesive such as an epoxy resin. The leads 28 are brought from the capsule through the side wall and sealed thereto with epoxy resins. A tube 30 which also emerges may be open to the atmosphere or may be fed from a source of reference pressure; alternatively a spring-device may be placed between the diaphragms to tend to separate them, its strength being chosen to suit the pressure range to be measured. Figs. 11 and 12 (not shown) illustrated methods of fixing the rimmed diaphragms together. Figs. 13 and 14 (not shown) show constructions in which plane diaphragms are attached to a separate annular wall. In the embodiments of Figs. 5-7 and 11-14 the diaphragms are effectively edge clamped and for maximum output the transducing elements should not lie across a circle of neutral stress in the diaphragm. Constructions in which the diaphragm is effectively freely supported and so have no circle of neutral stress allow the use of longer transducing elements, in that of Figs. 15 to 17 (not shown) and 18 the rims of the two diaphragms are grooved to prevent effective peripheral clamping of the diaphragms.