baber/WOPTO huggingface dataset:
Patent GB-1444611-A (GB)
Title: Process for the production of aminoanthraquinones
IPC: C07C225/34
Filed: 1973-08-06
Abstract: 1444611 Aminoanthraquinones by hydrogenation of nitroanthraquinones SANDOZ Ltd 6 Aug 1973 37181/73 Heading C4P A process for the production of an aminoanthraquinone from a nitroanthraquinone comprises hydrogenating the nitroanthraquinone in the presence of a hydrogenation catalyst and in an inert organic solvent in which the resulting aminoanthraquinone is soluble and the catalyst insoluble, and removing the catalyst from the resulting aminoanthraquinone solution. Suitable nitroanthraquinones are the 1-nitro-, 2-nitro-, 1,2-dinitro-, 1,6-dinitro-, 1,7-dinitro-, 1,8-dinitro-, 1,5-dinitro-, 2,7-dinitro- or 2,6-dinitroanthraquinone. The inert organic solvent may be an aromatic hydrocarbon, an ether such as anisole, phenetole, hydroquinone dimethylether or resorcinol dimethylether, a glycol ether or an ester such as ethylbenzoate. Suitable hydrogenation catalysts include noble metal catalysts such as Pt or Pd on a carrier. Other reaction conditions are a temperature of between 50‹ and 200‹ C. and a hydrogen partial pressure of 0À5 to 15 atmospheres.
Patent GB-1262054-A (GB)
Title: Electromagnetically operated clutch with spring-loaded brake
IPC: F16D67/06
Filed: 1970-07-31
Abstract: 1,262,054. Clutch-brake combination; disc brakes; electromagnetic control. MASCHINENFABRIK STROMAG G.m.b.H. 31 July, 1970 [19 Aug., 1969], No. 37191/70. Headings F2E and F2L. A clutch-brake combination includes an armature disc 4 urged to the left by a rotatable electromagnet 1 to engage the clutch and to the right by springs 8 to engage the brake 3, the armature disc 4 being mounted on a shaft 2 by a diaphragm 7 bolted to the disc and to a flange 6 on the shaft, and the springs 8 surrounding bolts 9 mounted on the armature and passing freely through the flange.
Patent GB-523106-A (GB)
Title: Improvements in and relating to electrically heated melting pots for typographical casting machines
IPC: B41B11/76
Filed: 1938-12-23
Abstract: 523,106. Heating type-casting crucibles. LINOTYPE & MACHINERY, Ltd., SCOTT, R. H., and BROWN, W. Dec. 23, 1938, No. 37411. [Class 39 (iii)] [Also in Group XXXV] The melting pot of a type-casting machine has main and auxiliary pot heaters 2, 3 and a throat heater 4, the last under manual control by a rheostat 5 and the two first controlled by a thermostat 6 so that when the metal has reached melting temperature the auxiliary heater 3 is cut out. Temperature is then maintained constant by a thermostat which operates on the heater 2. Should this heater fail the heater 3 automatically replaces it. Failure of any of the heaters is indicated by extinction of a signal lamp.
Patent GB-886898-A (GB)
Title: Shoe polish kit
IPC: A47L23/05
Filed: 1960-11-02
Abstract: 886,898. Shoe polishing kits; polishing pads. JOHNSON & SON Inc., S. C. Nov. 2, 1960 [Sept. 15, 1960], No. 37638/60. Classes 19 and 138 (1). A shoe polishing kit comprises a polish container 11 having a removable cover 10 and a polish applying device 21, comprising a dauber 23 secured to a hollow member 22 for holding a buffing cloth 25. The side wall of the container 11 has an outwardly flaring lip 16 which co-operates with an annular indentation 12 in the cover 10 to effect an air-tight seal, and a sealing foil 20 extends across the top of the container 11. The cover 10 has detents 15, 15a, for engaging a locking ring 14 on the container 11. The latter also has an annular indentation 17 which serves primarily as a cleaning element to remove loose polish from the edge of the dauber on its removal from the polish container, and it is also provided with internal projections 18, 19, 30 and 31 which prevent movement of the polish relative to the container when the dauber 23 is rubbed on the polish.
Patent GB-760773-A (GB)
Title: Improvements in or relating to packing arrangements for providing seals against highpressures between pipe flanges
IPC: F16L23/22
Filed: 1954-12-30
Abstract: 760,773. Joint-making packing. MATTLER, H. SCHULTE-, and SCHMITZ, F. Dec. 30, 1954, No. 37709/54. Class 122 (3). [Also in Group XXVIII] A packing arrangement for sealing pipe flanges 2, 3 of equal bore comprises a gasket 1 consisting of strips of metal and non-metallic packing material such as asbestos or asbestosrubber mixture, wound together to form a flat spiral having on its inner surface a V-section concavity and a centring ring 4, arranged within the spiral, having an inner diameter equal to that of the flanges and a wedge-shaped external surface adapted to co-operate with, but having a lesser apex angle than, the said concavity. The gaps 5 between the ring 4 and the flanges are made as small as possible to act as pressurereducing gaps for any fluid leaking therethrough. In a modification the ring 4 is divided transversely into two annular parts separated by a small gap angled one or more times to form a labyrinth. In another modification the ring is T-shaped in cross-section and the free ends of the arms of the T engage in recesses in the flanges. In yet another modification, Fig. 6, the ring comprises two L-section parts 13a, 13b separated by a labyrinth gap 14 and welded to the flanges 2 and 3 respectively.
Patent GB-1494997-A (GB)
Title: Drawing instrument
IPC: B43L13/20
Filed: 1974-11-06
Abstract: 1494997 Drawing instrument D L STEWART 6 Nov 1974 [9 Aug 1973] 37739/73 Heading G1X [Also in Division B6] A drawing instrument comprises a pivot-mounted protractor integral with a centrally-aligned straight edge 10, having marked along it a scale the gradations of which are marked with identifying numerals bearing a R/X relation to the distance X of the gradation from the pivot. Preferably the protractor is marked with the secant of the angle between a line passing through the pivot and a protractor gradation and the extension of the straight edge, multiplied by a constant. The instrument is used to prepare perspective drawings from plans or maps. The pivot is placed over both an "observer" point O on a plan or map F and a corresponding "observer" point on the drawing, which has an "observer's" line at sight OC and a "horizon" line at right angles. The distance OC, the constant of the straight edge scale and the constant of the protractor scale are chosen to facilitate calculation of the vertical distance Y by which a point on the perspective drawing must be raised or dropped from the horizon line.
Patent GB-872484-A (GB)
Title: Improvements in or relating to steroids and the manufacture thereof
IPC: C07J5/00
Filed: 1958-11-25
Abstract: The invention comprises 6-fluoro-11b ,17a -dihydroxy-4-pregnene-3,20-dione, 6-fluoro-17a -hydroxy-4-pregnene-3,11,20-trione, 6 - fluro21-iodo-11b ,17a -dihydroxy-4-pregnene - 3,20-dione, 6 - fluoro-21-iodo-17a -hydroxy-4-pregnene-3,11,20-trione, and a compound of the formula: <FORM:0872484/IV (b)/1> wherein R is a hydrocarbon radical containing 1-10 carbon atoms inclusive and R1 is hydroxy or keto and a process of treating 6-fluoro-11b ,17a ,21-trihdroxy -4- pregnene-3, 20-dione with an organic sulphonyl halide to obtain the corresponding 21-alkyl or aryl sulphonate of 6-fluoro-11b ,17a ,21 - trihydroxy-4-pregnene,3,20-dione, treating the thus-produced 21-ester with an iodinating agent to obtain 6-fluoro-11b ,17a -dihydroxy-21-iodo4-pregnene-3,20-dione, which is reduced, e.g. with zinc dust, sodium thiosulphate, sodium bisulphite and potassium bisulphite to obtain 6-fluoro-11b ,17a -dihydroxy-4-pregnene - 3,20-dione.  If desired the 11-hydroxy group may be oxidised to obtain 6-fluoro-17a -hydroxy-4-pregnene-3,11,20-trione.  The process is applicable to both the 6a  and 6b  epimers, the 6b  compound being epimerised to the 6a  compound by means of a mineral acid, e.g. hydrochloric acid.  Illustrative products of the invention are 6a -fluoro-11b ,17a -dihydroxy-4-pregnene-3-20-dione, 6a -fluoro-17a -hydroxy-4-pregnene-3,11,20-trione, 6a -fluoro-11b ,17a ,21-trihydroxy-4-pregnene-3,20-dione 21-methanesulphonate and 6a -fluoro-21-iodo-11b ,17a -hydroxy-4-pregnene-3,20-dione. Specification 872,483 is referred to.ALSO:Pharmaceutical compositions incorporating 6 - fluoro - 11b ,17a  - dihydroxy - 4 - pregnene-3,20-dione or 6-fluoro-17a -hydroxy-4-pregnene-3,11,20-trione as active ingredients are administered orally as pills, tablets, capsules, syrups and elixers, in liquid forms which are adaptable to the natural and synthetic cortical steroid hormones for injectable products, or topically in the form of ointments, creams and lotions with or without coacting antibiotics or germicides. Specification 872,483 is referred to.
Patent GB-1276443-A (GB)
Title: A dish washer
IPC: A47L15/44
Filed: 1970-08-06
Abstract: 1276443 Dishwashing machines INDUSTRIE A ZANUSSI SpA 6 Aug 1970 [4 Feb 1970] 38045/70 Addition to 1248159 Heading A4F The dishwashing machine forming the subject of the main patent is modified by the provision of a device for dispensing detergent into the washing liquid at the stage in the washing cycle at which the spraying of the fragile crockery is discontinued. Two detergent dispensers may be provided one for supplying detergent for the whole washing cycle and the other, controlled by a programme timer and/or a thermostat to add additional detergent, which may have a more intense action, when the spraying of the fragile articles is discontinued.
Patent GB-1534465-A (GB)
Title: Phase demodulator
IPC: H04L27/227
Filed: 1977-09-13
Abstract: 1534465 Phase demodulators; APC systems INTERNATIONAL BUSINESS MACHINES CORP 13 Sept 1977 [18 Oct 1976] 38157/77 Heading H3A A phase lock loop type of demodulator for a received PSK signal comprises a pair of quadrature demodulators responsive to the received signal and to a local reference carrier signal from source 25 tc provide in-phase and quadrature components, an arrangement 281, 291; 280, 290 for detecting the sign of the in-phase and quadrature components, a first and second multipliers 331, 330 for multiplying a component by the sign of the other component and a device 34 obtaining the difference of the two products as an error control signal for the reference source 25. The demodulator may be used in a time division multiple access communication system to facilitate fast and noise free synchronization. The demodulator may form part of a conventional MODEM (Fig. 1, not shown).
Patent GB-1219525-A (GB)
Title: Change speed gear system
Inventor: KEISER FREDERICK EDWIN
IPC: F16H3/095
Filed: 1969-07-30
Abstract: 1,219,525. Change-speed gear. EATON YALE & TOWNE Inc. 30 July, 1969 [23 Aug. 1968], No. 38175/69. Heading F2D. In a change-speed gear of the type described in Specifications 1,069,113 and 1,084,492, wherein an input pinion 34 drives countershafts 38, 47 carrying identical sets of gears 39-46 and 48-54 which mesh and support pinions 63, 66, 71, 76, 81 in floating relation relative to an intermediate shaft 56 to which the latter pinions are selectively clutched, the intermediate shaft 56 is pivotally mounted at its right-hand end in a splined bore 119 of an output unit 116 about a centre point 111 of the bore 119 for limited radial movement of its other end 123 in any direction to provide balanced gear loading. As shown, the intermediate shaft 56 is mounted between the splined bore 119 of the output unit 116, by which it is connected thereto, and a clearance journal bore 124 of an input shaft 31, the clearance between the bore 124 and shaft end 123 permitting floating radial movement of the shaft 56 in any direction, the shaft 56 being selectively clutched to the input pinion 34 or to the pinions 63, 66, 71, 76, 81 by three double position positive clutches 57, 68, 79 controlled by selectors 64, 74 and 86 respectively, the pinion 81 being driven from the countershaft gears 46, 54 through reversing idlers (82, 83) (Fig. 6, not shown). Power take-off gears 87, 88 are separately arranged on the countershafts 38, 47. To improve pivotal movement of the shaft 56 in the splined bore of output unit 116, the spines 116 may be crowned as in Fig. 7 (not shown).
Patent GB-1031029-A (GB)
Title: Two-thread chain stitch sewing machines with means for forming rows of stitches resisting unravelling
IPC: D05B27/08
Filed: 1964-09-18
Abstract: 1,031,029. Sewing machines. VIRGINIO RIMOLDI & CO. S.p.A. Sept. 18,1964 [Sept. 20, 1963], No. 38238/64. Heading D1G. Manual operation of a control while a twothread chain stitch sewing machine is stitching serves to form three superimposed lengths of stitching for resisting unravelling. The result is achieved by reversing the feed for a predetermined period. The free end of the bed shaft 1 carries a crank disc 27 formed with a radial groove accommodating a crank pin 28, the eccentricity of which may be varied by a screw 29. A square block pivoted on pin 28 slidably engages the slotted end of a lever 26 pivoted intermediately by a pin 55a to one end of a link 57. The other end of the latter is pivoted at 58 to an arm 59 which is pivoted at 60 to the machine frame. The other end of lever 26 is pivoted to a crank arm 35 on a feed advance shaft 38. Arm 59 is connected by a link 64 to one end of a lever 66 pivoted at 67 to the machine frame. The other end of lever 66 is connected by a link 72 to the armature 83 of a solenoid 74. The arrangement is such that when a push-button switch is closed momentarily, solenoid 74 remains energized for a predetermined but variable period of time, during the duration of which lever 26 is moved to the position of reverse feed. The stitch length during reverse stitching is determined by the position of a stop which lever 26 abuts. A hook 23, Fig. 1 not shown, movable in a horizontal plane for expanding the thread loops to ensure correct stitch formation during reverse stitching, is carried by a bar 22 to which reciprocatory movement is imparted by a cam sleeve 3 on the bed shaft, and to which oscillatory movement is imparted by a similar cam sleeve 10. In a modification, Fig. 16 not shown, a loop-expanding hook 125 is carried by a bar 126 fixed to one arm 128a of a bell crank lever pivoted on a pin 137 carried eccentrically by a gear wheel 135. A gear wheel 134, which meshes with gear 135 and is driven from the bed shaft, carries eccentrically a pin 136 which engages an arcuate slot 128b formed in the other arm of the bell crank lever.
Patent GB-960958-A (GB)
Title: Photographic camera with an automatic exposure regulating device
IPC: G03B7/12
Filed: 1962-10-09
Abstract: 960,958. Photographic cameras with built in exposure meters. AGFA A.G. Oct. 9,1962 [Oct. 11, 1961], No.38247/62. Addition to 918,457. Heading G2A. A photographic camera with an automatic exposure regulating device including a moving coil galvanometer 103 with a needle member 164 and an exploratory device therefore comprising a clamping jaw 167, has a correction mechanism to vary the relative positions of member 164 and jaw 167 at constant illumination to allow for interchangeable lenses with different maximum relative apertures, the mechanism being responsive to means on the lens mounts and also to the setting of at least one preselectable exposure value setting means, the mechanism including a lever system having a transmission lever 111 pivotable by the setting means and pivotable and bodily displaceable by insertion of a lens, the latter movements of the lever 111 being transmitted to move an exposure factor scale for the lens into a viewing position. In the embodiment shown rotation of a disc 120 moves, by means of a gear and rack, lever 115, causing lever 111 to pivot on a pin in slot 113 to move lever 106 and by means of rack and gear to rotate the galvanometer 103 to allow for the film sensitivity. When a lever is inserted by a rotary movement a lug 146 in its mount engages a lug 145 on a lever 131 and rotates the lever about 137 and end 130b to pivot a lever 153 about a pin 154 by an amount depending on the size of lug 146. This causes a slide 158 to move and a different set of diaphragm aperture values appears in window 102. Rotation of ring 140 to set the shutter speed causes lever 138 to pivot lever 131 about pin 132 and lever 131 rotates lever 111 about pin 114 and causes lever 106 to rotate the galvanometer to allow for the shutter speed. When shutter release knob 179 is depressed it frees a lever 168 which is urged downwards until jaw 167 engages pointer 164 and sets the diaphragm by means of a pin 180 engaging a lug 181 on the diaphragm setting ring 182. Another pointer 161 is provided on the galvanometer to move adjacent the scales on lever 158. The camera can be designed for automatic setting of both diaphragm aperture and shutter speed in known manner.
Patent GB-839381-A (GB)
Title: Improvements in or relating to type-printing arrangements
Filed: 1956-12-15
Abstract: 839,381. Typewriters. SAXBY, R. N. Nov. 26, 1957 [Dec. 15, 1956], No. 38333/56. Class 100(4) The type printing mechanism of Specification 791,800 is modified by the provision of a separate reversible motor for controlling carriage movement in letter or back spacing direction. As in the prior Specification line spacing is effected by a hollow shaft 91, Fig. 1, driven in either direction from a shaft 59 through bevel gearing 104, 105 or 104, 106 the alternative engagement of which is controlled by an electromagnet. The shaft 59 is driven intermittently to provide single line spacing as described in the prior Specification and provision is made to drive the shaft 59 continuously under the control of manual keys or signals received from a computer or similar machine. Letter and back spacing. As in the prior Specification single letter spacing is effected by a Geneva wheel 64, Fig. 4, acting through a pinion 66 and a rack 67. In addition continuous movement in either direction is effected on operation of the carriage magnet, an extension 145 of which forces down the spindle 138 to disengage a pin 144 from the Geneva wheel 64 and to connect a bevel wheel 134 with a toothed ring 140 of a member 139 which by a pin 141 drives the carriage through the spindle 138 and rack and pinion 67, 66. Downward movement of the spindle 138 closes a contact springset 146 to start the reversible motor. The carriage movement like the line spacing movement is controlled by manual keys or signals from a computer and in the latter case the drive is stopped by the control of a wiper moving over spaced contacts. Ink ribbon mechanism. Spools mounted on spindles 153, 154 are driven from a shaft 173, through bevel gears 167, 177 or 168, 178. The shaft 173 is driven by a pawl and ratchet 186, 174 from an electromagnet 189. The direction of the feed is reversed when an eyelet on the ribbon engages a fork 160 to close contacts 185 and energize an electromagnet 195 to move the shaft 173 to disengage the gearing 167, 177 and engage the gearing 168, 178 the feed is again reversed when the fork 159 is contacted to make contacts 184.
Patent GB-872978-A (GB)
Title: Improvements in or relating to fountain pens
IPC: B43K7/00
Filed: 1958-11-28
Abstract: 872,978. Reservoir pens. GRESSER, M. March 16, 1959 [Nov. ' 28, 1958], ..No. 38451/58. Class 146(3).  A ball-point pen for use with ordinary; aqueous ink comprises a writing ball 6 housed in an external recess in the tip of a conical shell 2, which. recess communicates with the conical cavity of the shell, and wherein the shell is connected to an ink sac 11 adapted to be compressed and released for refilling,' the ink being permitted to flow freely from the sac and through the conical cavity of the shell. without passing through any feed passage of capillary dimensions. The hole through which the ink flows from the shell to the ball 6 is about 72 gauge. A cylindrical shank of the shell 2 fits into a tube 8 which is screwed into the upper section 9 of the pen barrel, and a tube 12 carrying the ink sac 11 fits into a bush 10 in the section 9. The lower section 13 of the barrel fits over the bush 10, and is provided with the usual lever for compressing the sac 11. Air is admitted to the sac during writing, and ink during refilling, through a narrow channel 14 cut in the outer surface of the tube 8.
Patent GB-1514246-A (GB)
Title: Locating the centre of a videodisc
IPC: G11B11/12
Filed: 1975-09-19
Abstract: 1514246 Locating the centre of an information disc MCA DISCO-VISION Inc 19 Sept 1975 [30 Sept 1974] 38565/75 Heading G1A In an apparatus for locating the centre of concentric substantially circular information tracks on a surface of a video-disc, the diffraction pattern formed by the disc from light from a short arc radiation source is sensed by a detector 17 behind a "pin hole" aperture 16. The radiation may pass through the disc as shown or it may be reflected off, Fig. 2 (not shown). The disc is moved until the detector has a maximum output indicating the central maximum of the diffraction pattern. When this is found a line joining the source and detector will pass through the centre of the disc. Once the centre is found a hole is punched with a punch 21. The description refers to making the process automatic by involving servosystems and/or by using a matrix of sources and a matrix of detectors which are each turned on one at a time.
Patent GB-931740-A (GB)
Title: Improvements relating to devices for controlling the flow of gas
Inventor: PINKESS LESLIE HAYDN
IPC: G05D23/12
Filed: 1958-12-02
Abstract: 931,740. Valves. EVERED & CO. Ltd. Dec. 2, 1959 [Dec. 2, 1958], No. 38757/58. Class 135. The actuating diaphragm 22 of a gas governor, which is connected to the valve closure 19, is loaded to the closed position by an adjustable spring 26. A bellows 36, connected to a thermal bulb, not shown, abuts one arm of a bell-crank lever 40 which is loaded in opposition to the bellows 36 by a spring 43 adjustable by a screw 44 having a stop 47 and a temperaturecalibrated dial; the other lever arm is connected with lost-motion to a stem 52, movement of which adjusts the loading of the governor spring 26 via a disc 51 abutting the inner end thereof. This arrangement is suitable for use in a refrigerator since a reduction in temperature of the thermal bulb would result in a reduced thrust of the spring 26 on the diaphragm 22. In a modification, the positions of the bellows 36 and spring 23 are interchanged whereby the governor may be used in apparatus where the space in which the thermal bulb is located is to be heated. In various modifications, the bellows and its loading spring are mounted vertically above the stem 52 or disposed vertically on opposite sides of the pivot of a lever, one end of which engages the stem 52. The disc may be disposed at the outer end of the governor spring and the latter may comprise a pair of nested springs, the loading of only one of which is varied by the bellows. In a final modification, the central portion of the diaphragm forms an additional closure member which co-operates with an annular seat surrounding the opening in the casing web through which passes the stem of the main closure; a permanent bleed connection is provided between the inlet and outlet ports.