baber/WOPTO huggingface dataset:
Patent GB-777995-A (GB)
Title: Allopregnan-3,6,11,20-tetrone and processes for its preparation
IPC: C07J5/00
Filed: 1955-03-25
Abstract: The invention comprises allopregnan-3,6,11, 20-tetrone and the preparation thereof by oxidizing allopregnan-11a -ol-3,6,20-trione with chromic acid, or by reducing 6,11-diketo-progesterone with zinc and acetic acid.  The former process may be modified in that the allopregnan-11a -ol-3,6,20-trione is prepared by treating 6b ,11a -dihydroxy-progesterone with aqueous methanolic hydrochloric acid or potassium hydroxide; by epimerizing 6b ,11a -diacetoxy-progesterone with aqueous hydrogen chloride dissolved in chloroform containing about 1 per cent ethanol, saponifying the resulting 6a ,11a -diacetoxy-progesterone with two equivalents of methanolic potassium hydroxide at room temperature to form 6a ,11a -dihydroxy-progesterone which is then treated with aqueous methanolic hydrochloric acid; by brominating 11a -acetoxy-progesterone with N-bromosuccinimide, the resulting 6-bromo-11a -acetoxy-progesterone is treated with aqueous methanolic hydrochloric acid or aqueous methanolic silver nitrate to form allopregnan-11a -acetoxy-3,6,20-trione (this compound may also be obtained by reacting allopregnan-11a -ol-3,6,20-trione and acetic anhydride) which is then saponified with methanolic potassium hydroxide; or by acetylating 11a -acetoxy-progesterone with acetyl chloride and acetic anhydride to form 11a  - acetoxy - progesterone - 3 - enol acetate which is then brominated with N-bromoacetamide to form 6-bromo-11a -acetoxy-progesterone which is treated as above with aqueous methanolic hydrochloric or aqueous methanolic silver nitrate and the product saponified with methanolic potassium hydroxide.  The above latter process for the preparation of allopregnan-3,6,11,20-tetron may be modified in that the 6,11-diketo-progesterone is prepared by oxidizing 6a ,11a -dihydroxyprogesterone, prepared from 6b ,11a -diacetoxy-progesterone by the process referred to above, with chromic acid.  A number of detailed examples are given.
Patent GB-1464916-A (GB)
Title: Prostaglandin compounds
IPC: C07C67/00
Filed: 1974-02-27
Abstract: 1464916 Cyclodextrin complexes ONO PHARMACEUTICAL CO Ltd 27 Feb 1974 [28 Feb 1973] 8920/74 Heading C3U [Also in Division C2] Cyclodextrin clathrates of novel prostaglandins of the formulae wherein X is -CH 2 CH 2 - or cis -CH=CH-, Y is trans -CH=CH- or, when X is -CH 2 CH 2 -, Y may also be -CH 2 CH 2 -, A is C 1-3  alkylene, n is 4 or 5 and (B) is a grouping of the formula or of the C 1-12  alkyl esters of the above acids are prepared by mixing solutions of cyclodextrin in water and/or water-miscible organic solvents with solutions of the prostaglandins in watermiscible organic solvents and heating the resulting mixture.
Patent GB-122392-A (GB)
Title: Improvements in Method of Making Chains.
Inventor: MUMFORD THOMAS JAMES
IPC: B22D25/02
Filed: 1918-05-30
Abstract: 122,392. Mumford, T. J., and Sinclair, H. W. Jan. 16, 1918, [Convention date]. Cores; moulds; patterns. - Interlocking chain links, particularly of stud type, are cast in a mould of green or baked sand, the mould being in two parts rammed in a machine of ordinary kind. Each half mould is manufactured from a half pattern. Fig. 1 shows a half pattern for making the cope for casting seven links, four horizontal and three vertical. The horizontal members a, b, c, d are of the true form of the finished link, but the vertical members e, f, g are provided with a shouldered recess 18, Fig. 8, to receive a core member C also made in two parts. Upstanding blocks 10, 11, and interconnecting members 9 are provided to form a central sprue-hole, risers, and gates. The drag may be formed from a separate half pattern, or the blocks 10, 11 may be removable so that the same pattern will serve for both parts of the mould. The core C has a groove 19 and stud opening 21 completing the form of the vertical link, and transverse openings 24 completing the cavities for the horizontal links. The links may be poured through the central sprue-hole, or individuallv. Previously made links may be placed in the horizontal cavities, and the mould used for casting connecting links. Sections of chain may be joined by placing the end link of a finished section in an end cavity.
Patent GB-1032516-A (GB)
Title: Improvements in axial piston pumps or motors
IPC: F01B3/00
Filed: 1963-03-07
Abstract: 1,032,516. Reciprocating pumps and motors. T. BUDZICH and A. PITT. March 7, 1963 [Sept. 6, 1962], No. 9074/63. Heading F1A. [Also in Division G3] The angle of a swash-plate 32 of a rotating cylinder pump or motor is adjusted in response to the high pressure in line 48 acting through a valve 130. The fluid controlled by the valve 130 acts on a spring loaded piston (not shown), to rotate a member 72 supported by bearings 74 on a stationary pin 70. The pin also supports the swash-plate 32 through a bearing 68. A torsion shaft 78 extends through the bore of the pin and is connected at opposite ends to the member 72 and the swash-plate 32 whereby rotation of the member 72 by the piston adjusts the angle of the swash-plate 32.
Patent GB-127712-A (GB)
Title: Improvements in and connected with Boxes, Crates, Bags, or similar Receptacles made of Cardboard, Wood, or other Material.
Inventor: FARRELLY JOHN
IPC: B65D5/64
Filed: 1918-06-03
Abstract: 127,712. Farrelly, J. June 3, 1918. Lids and covers.-The lid or mouth of a box, crate, bag, basket, &c., is secured by a cord &c. K1, Fig. 6, which is threaded through holes in the upper part of the body of the receptacle, a short additional cord L being used for drawing together parts of the main cord K1. The ends of the cord K1 are secured inside the receptacle. The short cord L may be omitted, in which case the ends E, Fig. 4, of the cord K1, instead of being secured inside the receptacle, are fastened by wrapping them round the main portion of the cord. In a modification, the lid is secured by two cords, leather laces, &c., which are each secured at one end to the body of the receptacle, the other ends of the cords &c. being formed with loops H, Fig. 5. The two cords pass through holes in the body or lid of the receptacle, and the loops H are secured together by a padlock, wooden peg, &c. Specification 5108/04 is referred to.
Patent GB-724829-A (GB)
Title: A process for electrolytically polishing articles made of, or substantially of, gold
Inventor: SOMMER RUDOLF
IPC: C25F3/22
Filed: 1953-04-01
Abstract: 724,829. Electrolytic polishing of gold. SIEMENS & HALSKE AKT.-GES. April 1, 1953, No. 9117/53. Class 41. In a process for electrolytically polishing articles made of, or substantially of, gold, the articles are treated anodically in an electrolyte comprising an aqueous solution of potassium cyanide, potassium ferrocyanide, sodium phosphate and potassium hydroxide. The electrolyte preferably contains 4 to 8 per cent of, potassium cyanide, 4 to 20 per cent of potassium ferrocyanide, 1 to 5 per cent of sodium phosphate and 0.2 to 1.5 per cent of potassium hydroxide. Preferably the anode current density is 50 to 150 amps. per square decimetre, and the temperature is between 60‹ C. and 95‹ C.
Patent GB-598599-A (GB)
Title: Coupling devices for photographic camera attachments
IPC: G03B17/12
Filed: 1945-04-12
Abstract: 598,599. Lens fittings for photographic cameras. NAGEL, H. April 12, 1945, No. 9137. [Class 98 (i)] An adapter for coupling a lens hood, light filter, &c. 12, Fig. 1, to the lens barrel 11 of a camera consists of a tubular holder 14 on which the hood &c. is supported as by screw means 20, and which has internal tapered screw engagement 22 with a ring 15 having a plain internal surface which slides on to the lens barrel 11 and terminates in an internal barrelabutting flange 27. The ring 15 has its periphery split at 29 so that, when it is slipped on to the lens barrel and the holder 14 is screwed on to it, the ring is compressed by reason of the screw tapering to grip the barrel. The split 29 may be of V-form, or parallel to the ring- axis at its ends with a central part of U-form, to prevent undue lateral separation of the ends of the ring at the split. The ring has a knurled adjusting flange 42, and its movement into the holder 14 may be limited by an internal rib 16 in the holder. The arrangement may be duplicated to insert, e.g. an extension tube between the hood &c. and the holder 14. In a modification, the tapered screw engagement 22 is replaced by a cylindrical screw engagement, on each side of which plain co-operating tapered annular parts are formed on the ring and holder which give rise to a similar compressing effect on the ring during assembly.
Patent GB-115946-A (GB)
Title: Method of Manufacturing Cementing Materials and Products thereof.
Inventor: CHARLTON HARRY WILLIAMS
IPC: C04B28/18
Filed: 1917-06-27
Abstract: 115,946. Charlton, H. W. June 27, 1917. Alkali metal compounds, obtaining from complex silicates. Alkali silicates are digested in water with lime, part of the alkali passing into solution and being capable of recovery. in an example, 30 to 60 parts of feldspar are digested with 60 to 30 parts of lime in 300 to 500 parts of water at a pressure of about 200 pounds per square inch, and a temperature of 160‹-200‹ C. for 2 to 4 hours.
Patent GB-164895-A (GB)
Title: Improvements in, or relating to, universal joints for power-transmission systems andsimilar purposes
IPC: F16D3/78
Filed: 1920-03-31
Abstract: 164,895. Jelley, B. March 31, 1920. Universal joints.-In universal joints of the flexible-disc type for automobile and like transmission systems, the disc or ring is made from rubber, or rubber mixed with various proportions of cotton or other fibre, moulded and vulcanized in a die provided with projections for forming and locating the holes to receive the drive-studs carried by the shaft-spiders. Except when used for magneto and other light drives, the disc is reinforced against torque or radial displacement, or both, by flexible ties embedded therein during the moulding. As shown in Fig. 3, the base f<1> and head f<2> of the mould register at f<5>, f<6> in the body f, defining a chamber f<3>, and the base carries integral projections f<4>, on which coned washers g are threaded. Pieces or layers of raw rubber &c., which may be pierced to clear the washers, are placed or pressed into the mould to the depth of the washers, together with a proportion of vulcanizing-compound according to the stiffness required, the sheet steel or like torquelinks d being then placed in position on the projections f<1>, coned washers g<1> dropped over them, and the filling completed. The links d may be coated with vulcanite &c. to promote adhesion. Gentle heat and pressure are applied to start the flow, and the filling is rectified if necessary, after which the moulding and vulcanizing are finished by full heat and pressure. In the joint shown in Fig. 1, two sets of three drive-studs b<1>, c<1> engage the washers and torque-links d, which may have slots d<1> to increase their flexibility and grip on the rubber. The links d may be replaced by a hexagonal frame, or by two triangular or V- shaped frames connecting alternate studs, and may be supplemented or replaced by a six-armed radial frame, or by two three-armed frames connected to alternate studs and riveted &c. together at the centre, or by three links connecting diametrically opposite studs. The sheet-metal reinforcement may be replaced by wire links or loops connected at the joints by eyelets, bushes, &c., or the reinforcement may consist of stout cotton or hempen cords wound on a light frame which may be bushed at the angles.
Patent GB-400512-A (GB)
Title: Improvements relating to the friction drive of the over-head gear of sheep-shearing machines
IPC: F16H55/52
Filed: 1933-03-28
Abstract: 400,512. Friction gearing. SLOAN, D. G. D. and COWCHER, J. S., Williams, Western Australia. March 28, 1933, No. 9280. Drawings to Specification. [Class 80 (i).] The friction gear for the overhead drive of sheep-shearing machines comprises a solid truncated cone with an indiarubber driving- surface vulcanized sufficiently hard to prevent substantial deformation but sufficiently soft to give an adequate frictional drive. The cone may be formed of laminations of rubber and fabric vulcanized together and surfaced on the peripheral wearing-surface with vulcanized rubber.
Patent GB-526658-A (GB)
Title: Improvements in or relating to apparatus for indicating the position of objects emitting or reflecting radio beams
IPC: G01S1/02
Filed: 1939-03-24
Abstract: 526,658. Locating objects by reflected waves. SPERRY GYROSCOPE CO. March 24, 1939, No. 9294. Convention date, April 13, 1938. Addition to 501,996. [Class 37] [Also in Group XL] Relates to means for locating the position of a distant transmitter (or of an invisible object capable of reflecting wireless waves) by scanning the field of exploration both horizontally and vertically, and correlating the received signals on the fluorescent screen of a cathode ray tube. The invention consists in replacing the two sets of rotating aerials described in the parent Specification by two sets of fixed aerials, which are arranged to produce a rotating lobe of maximum signal strength. In Fig. 1 the stationary aerials 3, 4, 5,. 6, mounted about a centre reflector 7, are used to make a horizontal scan at "framing" frequency, whilst the second aerial system 8 ...12 gives a vertical scan at " line " frequency. One pair of dipoles 6. 4 is connected to amplifiers 15, 16, the other pair of dipoles 3, 5 being coupled to amplifiers 17, 18. The grid bias on each amplifier is varied cyclically by voltages derived from the field-windings 33, 34 of a local generator with a rotor 30 which is driven from a motor 31. The result is that a rotating lobe of maximum signal strength is applied to a gas discharge tube 24. A third field-winding 35 supplies control voltages to one pair of the deflecting-plates of the cathode ray tube 37. A second aerial system 8 ...12 is similarly coupled to amplifiers 15<1> ... 18<1>, and a generator 28<1>, and applies a lobe of maximum signal strength at " line " frequency to the discharge tube 24. Cams 47, 48 ensure that only the forward half of each scanning cycle is effective. The arrangement is such that no electron stream flows through the cathode ray tube until the maximum lobe from both sets of aerials coincides with the direction of the object being scanned. At that moment, a spot of light is produced on the fluorescent screen 52 at a point which indicates the position of the distant object. When used by two aeroplanes in the air, danger of collision is avoided by keeping the position-indicating spot 54, Fig. 2, out of the centre circle 55. An auxiliary transmitter 60, Fig. 1, may be used to radiate waves which are reflected from the invisible object, when the invention is used for " spotting " or gun-fire control from the ground.
Patent GB-432065-A (GB)
Title: Improvements in or relating to game apparatus
IPC: A63F7/02
Filed: 1934-03-24
Abstract: 432,065. Table game apparatus. RICHTER, A. H., 75, Kottbuserdamm, Berlin. March 24, 1934, No. 9345. [Class 132 (ii)] In board-game apparatus balls projected along the channel 3 by the spring plunger 1 are deflected by pins 11 and pieces 12 to rotate stars 13 and enter scoring holes 14. The arms of the star are marked with numbers and rotate over numbers marked on the board for scoring purposes, the number of numbers on the board being prime to the arms of the star. The board is given an inclined position by U-shaped member 10 adjusted by a thumb-nut 21. The board is provided with a double bottom to take balls passing through the holes 14 which then pass to a position below a gap 9 in the board where they are stopped by a rocking lever 15 controlled by a spring 16. On depressing the lever 15 a ball comes out through an aperture 17 to fall on to a member 18 secured to the lever 15 and provided with an outer rim and with a hole 19 to retain the ball. A ball holder is provided comprising resilient claws 20.
Patent GB-549129-A (GB)
Title: Improvements in and relating to sanitary napkins
IPC: A61F13/15
Filed: 1941-07-23
Abstract: 549,129. Sanitary napkins. JOHNSON & JOHNSON (GT. BRITAIN), Ltd., July 23,1941. No. 9347. Convention date, July 24, 1940. [Class 81 (ii)] A sanitary napkin comprises an absorbent filler 1 partly enveloped by strips 59 of moisture repellent material which overlap on one face of the filler and have their opposed edges 5<SP>1</SP> spaced apart on the other face of the filler to provide a moisture channel between such edges. As shown the filler 1 is completely wrapped by a wrapper 3 of soft, tenuous, creped, absorbent tissue before application of the strips 5, which can be of one or more plies; a semi-repellent wrapper 7 is then applied to both sides and faces of the pad and overlapped on the side worn away from the body, a film 9 of cotton may be applied in the form of two strips arranged as the strips 5 and the napkin is finally encased in a gauze or similar covering 11. In making the napkin on an automatic machine, the absorbent tissue 5, one or more repellent plies 5 and the ply 7 are simultaneously wrapped and folded around the filler pad 1 and the strips 9 and covering 11 are subsequently wrapped and folded around the article.
Patent GB-1155878-A (GB)
Title: Improvements relating to Fuel Cells
Inventor: MATHER WILLIAM BREWSTER
IPC: H01M8/08
Filed: 1968-02-27
Abstract: 1,155,878. Mixed acids; carbon electrodes. TEXACO DEVELOPMENT CORP. 27 Feb., 1968, No. 9470/68. Heading C1A. [Also in Division H1] A fuel cell electrolyte comprising borophosphoric acid and orthophosphoric acid in a molar ratio between 1 : 1 and 1 : 6 is prepared by heating boric acid and orthophosphoric acid at 150‹ to 250‹ C. Carbon electrodes in the cell are subjected to a pretreatment comprising some or all of the following steps: (a) heating to 700-1000‹ C. in an oxidizing atmosphere and in the presence of iron, nickel and/or chromium, (b) boiling in dil. aqua regia, (c) boiling in distilled water, (d) depositing a catalytic metal or compound thereon, (e) reduction of the catalytic compound to the metal, and (f) heating in a reducing atmosphere. Before step (a) the electrode may be impregnated with aq. FeCl 3  solution. The oxidizing atmosphere in step (a) may be C0 2 . The iron, nickel and/or chromium may be in the form of an austenitic steel or an alloy containing more than 75% nickel, more than 10% chromium, more than 5% iron, carbon, copper, manganese and silica. The metal may form the container for the carbon. The catalyst in step (d) may be platinum, palladium, iridium, tantalum or tungsten. It is applied to the electrolyte side of the electrode as an aqueous solution of a metal compound, e.g. chloroplatinic acid, a solution in a methanol-ethanol mixture, or as a slurry, e.g. of platinum black, tantalum carbide or palladium black in isopropanol. The alcoholic solution of chloroplatinic acid may be applied when the electrode is at 100‹ C. The catalyst applied as a slurry may be fixed by spraying on PTFE. The chloroplatinic acid may be reduced to platinium at 200-300‹ C. in a hydrogen atmosphere or with hydrazine. The reduction (f) may be at 700-1000‹ C. in a hydrogen atmosphere.
Patent GB-1518382-A (GB)
Title: Phase locked loops
IPC: H03J5/02
Filed: 1976-03-10
Abstract: 1518382 APC systems SONY CORP 10 March 1976 [13 March 1975] 09568/76 Heading H3A A phase lock loop for use in FM receivers and operating with a constant lock range over a wide tuning band by assuring constant loop gain comprises a phase comparator 10 for comparing the outputs of a controlled oscillator 4 and a reference oscillator 11, a D.C. amplifier 14 receiving the comparator output via a low pass filter 13, an element 15 for detecting the frequency of oscillator 4 and applying a gain control signal to the D.C. amplifier 14 which supplies the error control signal to the oscillator 4. The loop may include a variable divider 9 for tuning the receiver in steps over a wide range and any variations in the loop gain are corrected via 15, 16. For improving the sensitivity of the receiver to incoming FM signals, an FM feedback signal from detector 6 may be applied to the D.C. amplifier 14 via a phase compensator 19, an integrator 18 and an adder 17. In a stereophonic receiver (Fig. 3 not shown), the oscillator 4 output may be mixed with that of a second reference oscillator and applied via a frequency multiplier to the phase comparator.
Patent GB-739674-A (GB)
Title: Improvements in or relating to apparatus for loosening and/or removing slag from a metallurgical converter
Inventor: REUTEN JOACHIM
IPC: C21C5/46
Filed: 1954-04-02
Abstract: 739,674. Removing incrustations from metallurgical converters. PINTSCH BAMAG AKT.. GES. April 2, 1954, No.'9747/54. Class 72. [Also in Group XXIII] An apparatus for removing slag from metallurgical converters comprises a manuallycontrolled piston which strikes a tool-carrying rod, one end of which lies in the piston cylinder, in which in an initial stroke the piston pushes the tool into contact with the slag and further strokes act in a percussive manner against the rod. As shown, a piston 2 is driven in a cylinder 1 by compressed air, controlled by a manually-operated valve 6, against an anvil 3 having a rod 4 and a tool 5. The initial stroke is controlled to bring the tool against the slag at the required place and the piston is returned to its original position by admitting air to its front end through a pipe 8. The piston may thereafter be operated as a hammer piston by manual operation of the valve 6. The anvil may be retracted into the cylinder by admitting air to its front end through a pipe 7. The cylinder may be mounted in a universal joint 1a carried on a trolley 15 mounted on a vehicle 9. A pedal controlled spring-loaded brake 11 prevents unnecessary movement of the tool. The cylinder may be mounted on a frame and supported from a crane.
Patent GB-493373-A (GB)
Title: Improvements in or relating to means for stabilising marine vessels
IPC: B63B41/00
Filed: 1937-04-06
Abstract: 493,373. High-speed boats. BILLING, N. P. April 6, 1937, No. 9795. [Class 113 (ii)] The stern of a high-speed boat is provided with fins 15, one on each side of the propeller and mounted for rotation about the horizontal shaft 11 so that their depth of submergence can be regulated. Guides 27 engage the edge of the fin to make it rigid, which is also provided with a foot 38 and a detachable planing surface 41. The fins may also be adjustable middlewise in place of or in addition to the usual rudder. In a modification, the fins slide in guides instead of turning around a shaft.
Patent GB-1448051-A (GB)
Title: Device for mounting on a warp knitting machine for trans mitting movement from a drive of the machine to guide bars  thereof
IPC: D04B23/00
Filed: 1974-03-05
Abstract: 1448051 Warp knitting machines ELITEXZAVODY TEXTILNIHO STROJIRENSTVI GENERALNI REDITELSTVI 5 March 1974 [5 April 1973] 9814/74 Heading D1C In a warp knitting machine a shaft driven from the machine has two eccentrics or cranks the first of which acting through a lever operates a guide bar once driving each rotation of the shaft and a second which through a lever operated by the crank or eccentric through a connecting rod causes a second lever to operate a second guide bar twice during each rotation of the shaft. Lever 8 pivoted on shaft 9 is pivoted at one of points 81, 82, 83 to a crank 5 and by the rod 11 to guide bar 10. Lever 17 is connected at one of points 171, 172, 173 to the rods 16 whose connection 14 with rod 15 is connected to crank 16 and also to guide bar 12.