baber/WOPTO huggingface dataset:
Patent GB-551539-A (GB)
Title: Improvements in sweep circuit generation for cathode ray tubes
IPC: G01R13/28
Filed: 1941-09-25
Abstract: 551,539. Cathode-ray oscillographs. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Sept. 25, 1941, No. 12463. Convention date, Sept. 26, 1940. [Class 37] In a sweep voltage generator for a cathode ray tube, alternating currents of two frequencies are applied alternately to a pair of networks, each of which includes two oscillatory circuits so combined as to give a resonant response to the two frequencies, and the output voltages of the networks are applied to the deflecting electrodes of the cathode ray tube. A vibrator switching device keys alternately two generators 23, 25, which may be valve oscillators keyed by applying bias voltages. The outputs of these generators are applied to a potentiometer 27 which determines the ratio of the generator voltages. The movable terminal 29 of the potentiometer 27 is connected through a blocking condenser 31 to the inputs of a pair of amplifiers 33, 35 which couple the generators to a pair of networks 37, 39. Each of these networks includes a shunt circuit 41, 43 and a series circuit 45, 47, the constants of these circuits being chosen to produce resonance when the networks are adjusted as a whole. Alternatively two parallel resonant circuits may be connected in series. The outputs from the networks are applied through blocking condensers 49, 51 to the vertical and horizontal deflecting electrodes 53, 55 of a cathode ray tube 57. The electrodes 53, 55 may be connected to centring potentiometers 59, 61. Voltages corresponding to events to be timed are applied to a radial deflecting electrode 63. The generators 23, 25 generate currents of frequencies f, nf, which are applied to the networks 37, 39 alternately so that these networks respond alternately to the two frequencies. If the networks are adjusted to resonance their output voltages will be in phase and produce straight line traces of sinsusoidal characteristics on the screen of the tube 57. Either or both of these traces may be made elliptic by adjusting one element of each network so that the impedances of the networks are slightly inductively and slightly capacitatively reactive respectively, or one impedance may have a phase angle of +45 degrees and the other a phase angle of --45 degrees so as to produce a circular trace at the frequency f. A circular trace at one frequency and a straight line trace at the other may thus be produced. Alternatively the networks may be so adjusted that two circular traces of different radii are produced. If one frequency is ten times the other, a main scale and a fine scale bearing a ten to one ratio may be used, because one trace has ten times the rate of angular rotation of the other.
Patent GB-882827-A (GB)
Title: Improvements to machines for cutting bevel, hypoid and similar gears
IPC: B23F9/10
Filed: 1958-04-21
Abstract: 882,827. Gear-cutting. PICANOL, J. April 21, 1958 [March 8, 1958], No. 12502/58. Class 83 (3). A bevel or hypoid gear-cutting machine comprises a tool-holder adjustable to locate the tool axis at a required angle and position. The cutter has teeth having outlines which are straight lines or circular arcs, or in the machine illustrated, logarithmic spirals as described in Specification 882,829. An adjustable support 5 on a cradle 4 as described in Specification 882,828 supports in turn a slide 6, a turntable 7, a slide 8, and swivelling supports 9, 10. The cradle rotates about an axis XX intersecting the axis of adjustment of the workhead in a point P, the " centre " of the machine. The slide 6 is adjusted by a worm-and-rack gearing device 21 against scales 23, 29. Similarly, bevel-and-worm gearing and scales 40, 43 are provided for adjusting the turntable 7 and a screw 50 and scales 54, 58 for adjusting the slide 8. The swivelling support 9 is adjusted by a screw 63 and a scale 65 and clamped by screws 61, 62 passing through plates 59, 60. Interposed between the screw 63 and the support 9 is a bearing plate 64, Fig. 7, shaped as the involute of a circle whose centre is the common pole of the logarithmic spirals of the tool. Similar clamping screws 68, 69, an adjusting screw 70 and bearing plate 72 are provided for the swivelling support 10. The cutter is rotated by a universally-jointed shaft. Once the machine has been set up to cut the concave flanks of a gear, the turntable 7 and slide 6, only, need to be adjusted for cutting the convex flanks. The turntable 7 is adjusted to an angle corresponding to the spiral angle less, instead of increased by, the correcting factor and the slide 6 is adjusted to a position taking into account the inner, instead of the outer, flanks of the tool. For cutting the pinion, the settings are similar except for reversal of the spiral angle. The support 5 (which may, however, be omitted) can be adjusted to control the bearing area.
Patent GB-708442-A (GB)
Title: Improvements in racks for gramophone discs and like articles
Inventor: BROAD CHARLES SAMUEL
IPC: G11B33/04
Filed: 1951-05-29
Abstract: 708,442. Racks for gramophone records &c. TURNIDGE, Ltd.. W. G. May 28,1952 [May 29, 1951], No. 12582/51. Class 52(1) [Also in Group VI] A rack for holding gramophone records and similar articles comprises a rectangular base frame 1 supporting a series of spaced wires of inverted Y-shape the lower ends of the limbs 6, 9 of the wires being secured in spaced holes 5 formed in opposite sides of the frame. The frame is of synthetic resin and the holes are inclined in the direction of the wires which are covered with synthetic resin and are each bent to form a loop 7, a return length 8 parallel to the limb 6 and a portion 9 extending to the rear base member 2. The wires are secured in the holes 5 by adhesive. A rod 10 passes through the loops 7, the wires being spaced by rings 11 and the rod secured by nuts 14. The base frame has holes for fixing it to the inside of the door of a cabinet. A plastic cap of U-section may be fitted over the top of the rack to cover the loops 7 and formed with webs serving as spacers, the securing rod being passed through holes in the webs. Specifications 639,869 and 683,831 are referred to.
Patent GB-891567-A (GB)
Title: Fluorinated carbamates
IPC: C07C271/06
Filed: 1960-04-08
Abstract: The invention comprises carbamates and N-alkyl-carbamates (the alkyl group containing at most 4 carbon atoms) of fluorinated primary and secondary alkanols of the formula X-(CF2)n-CH(R)-OH (wherein R is hydrogen or methyl, X is hydrogen of fluorine and n is 2,3,4 or 5), the preparation of the N-unsubstituted carbamates by reacting the fluorinated alkanols with phenyl chlorocarbonate or phosgene and treating the resulting intermediate with ammonia, and the preparation of the N-alkyl-carbamates by reacting the fluorinated alkanols with the appropriate alkyl isocyanate.  Examples are given. 3,3,4,4,5,5,6,6,7,7,7- Undecafluoro - 2 - heptanol is prepared from methyl undecafluoro-hexanoate and 1 mol of a methyl magnesium halide in the presence of 1.5 mols of an isopropyl magnesium halide.
Patent GB-1214832-A (GB)
Title: Improvements in or relating to the manufacture of pneumatic tyres
Inventor: EDNEY WALTER JAMES
IPC: B29D30/32
Filed: 1967-03-17
Abstract: 1,214,832. Bead ring applicator. DUNLOP CO. Ltd. 13 March, 1968 [17 March, 1967], No. 12613/67. Heading B7C. A bead ring applicator 1a for a tyre-building machine comprises a shaft 4a for carrying a tyre building drum, an applicator shaft 3 projecting from the end of shaft 4a, bead ring-carrying arms 5 collapsible inwardly from and re-erectable to a ring-supporting position, gearing 10, 11 for collapsing and re-erecting the arms and a piston-and-cylinder mechanism (the piston 8a only being shown) for reciprocating shaft 3 relative to shaft 4a.
Patent GB-163298-A (GB)
Title: Improvements relating to electrical controllers
IPC: H01H19/22
Filed: 1921-05-03
Abstract: 163,298. Metropolitan - Vickers Electrical Co., Ltd., (Assignees of Riley, L. G., Myer, H. R., Johnston, H. H., and Nieukernken, J. M. van). May 17, 1920, [Convention date]. Drum controllers for manual operation are fitted with a lost-motion head comprising auxiliary contacts which effect the closing or opening of a line switch at a determined position. In the apparatus shown, a drum-controller spindle 20, Figs. 4 and 5, is attached to the lower member 19 of the lost motion device, and a handle spindle 9 is attached to the upper member 16. The members are shaped with mutually engaging lugs allowing a relative play of about 35‹, and are fitted with partly encircling contact segments 36, 55 cooperating with stationary wiping contacts 38, 55a. The upper member also carries a flexible contact 57 co-operating with a stud contact on the lower member. When the handle is first turned on the motion of the member 16 relatively to the member 19 connects the trolly through contact 57 to segment 55, and thus to one side of the line switch 92, Fig. 26. The members then move forward together, and through segments 95 of the controller drum connect the other side of the line switch to the motors. Immediately afterwards the line switch is closed by the connection of its actuating coil to the segment 55. This completes the special function of the lost motion head and auxiliary contacts, and further advance of the controllerhandle actuates the drum contacts in the ordinary manner. When the handle is turned back, the member 16 separates from the member 19 and opens the line switch before the contacts are changed. When it is required to ' inch ' the motor, the handle is only taken forward as far as the first operative position, and then brought back, the movements being continually repeated.
Patent GB-988666-A (GB)
Title: Vehicle with lowering roof
IPC: B60J7/08
Filed: 1964-03-25
Abstract: 988,666. Collapsible vehicles. ATELIERS DE LA MOTOBECANE. March 25, 1964 [April 8, 1963], No. 12655/64. Heading B7B. A roof 4 is pivotally connected at 20 to the windscreen frame and at 21 to the rear window frame. The side pillars 13 of the windscreen frame are pivoted at 10 to the vehicle body and the pillars 15 of the rear window are pivoted at 11 to the body so that the roof may be swung downwardly to the position shown in Fig. 2. Rear quarter panels 7 which may be glazed limit the rearward movement of the roof assembly and when the roof is collapsed these panels lie inside the body. The hinges of the structure are rubber insulated and the assembly is retained in the erected position by toggle fasteners between the windscreen frame and the body.
Patent GB-180878-A (GB)
Title: Improvements in and relating to secondary batteries
IPC: H01M50/204
Filed: 1921-05-03
Abstract: 180,878. Holmes, F. J., and Hart Accumulator Co., Ltd. May 3, 1921. Cells.-A battery cell 1 is provided with external ribs 3 to form distancepieces between adjacent cells. The ribs, which may be of triangular, semicircular, oval, or other section, are bevelled at their upper ends as shown at 4. Sheets of ebonite &c. may also be placed between adjacent cells. The ribs need not be continuous throughout their length.
Patent GB-759875-A (GB)
Title: Wrenches
Inventor: COUGHTRIE THOMAS ROBB
IPC: B25B7/12
Filed: 1954-05-03
Abstract: 759,875. Wrenches. MOLE & SON, Ltd., M. April 4,1955 [May 3, 1954], No. 12750/54. Class 61 In a wrench compris-  ing a handle 4 having at one end a fixed jaw 5, a movable jaw 6 pivoted on the handle a hand lever 10 pivoted at' 9 to the jaw 6. a toggle link 13 interconnecting the lever and handle and supported at one end on an adjustable abutment 14 in the handle, a release trigger 17 pivoted on the hand lever 10 is provided. The adjustable abutment 14 is accommodated in a socket 15 on the handle 4, the enlarged end 18 of the toggle link being supported by the abutment and accommodated in the socket throughout the whole of the normal range of adjustment. The release trigger 17 has a bowed part thereon adapted to roll along the surface 16 on the socket 15, when actuated to release the wrench.
Patent GB-1457632-A (GB)
Title: Adriamycins
IPC: A61K31/70
Filed: 1974-03-22
Abstract: 1457632 Adriamycins SOC FARMACEUTICI ITALIA SpA 18 March 1975 [22 March 1974] 12783/74 Heading C2C Adriamycin and its beta-anomer, and 4<SP>1</SP>-epiadriamycin alpha- and beta-anomers (novel except for adiamycin) are prepared by protecting the primary hydroxyl group of adriamycinone, by reaction with 2,2-dimethoxypropane and p-toluene-sulphonic acid in chloroform to give novel 9-desacetyl-9-(2<SP>1</SP>,2<SP>1</SP>-dimethyl- 4<SP>1</SP> - methoxy - 4<SP>1 </SP>- 11,31 - dioxolanyl) - daunomycinone, condensing the protected adriamycinone with a N,O-trifluoroacetyl-protected 1 - halo - 1 - desoxy - daunosamine or -41- epidaunosamine for form a glycosidic linkage and removing the protecting trifluoroacetyl groups by mild alkaline hydrolysis and the sidechain protecting group by dilute acid to form the desired product (optionally isolated as an acid addition salt). Pharmaceutical compositions having antitumour activity comprise, as active ingredient, adriamycin or its beta-anomer, or 4<SP>1</SP>-epiadriamycin alpha- or beta-anomer, in admixture with a carrier.
Patent GB-394121-A (GB)
Title: Improvements in and relating to circuits for light sensitive devices
Filed: 1932-05-04
Abstract: 394,121. Valve amplifying circuits. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Haugh, R. R. ; 1010, Wrigley Building, Chicago, U.S.A.) May 4, 1932, No. 12886. Convention date, May 4, 1931. [Class 40 (v).] Photo-electric cell currents are amplified by an energy feedback between the lightsensitive device and the output of the amplifier. A resistance 3, Fig. 3, in the output of an amplifier 7 provides the voltage across a photo-electric cell 1 whose output feeds a transformer 5 in the input of the amplifier 7. As the output of the cell 1 increases, the output of the amplifier 7 increases to give a greater voltage across the resistances, applied to the cell, resulting in an increased current from the cell, providing that it has a rising volt-ampere characteristic. By reversing the winding 6 of the transformer 5 reverse reaction may be obtained. In the modification of Fig: 4, the resistances 16, 17 and condenser 18 shift the phase of the output current delivered by the amplifier so that the charge on the grid will be of proper polarity to facilitate regeneration, and, if desired, to sustain oscillation. The resistance 3, in the output circuit of the valve 7 supplies the cell with a potential varying in accordance with the output current. Specification 338,279, [Class 40 (v), Wireless signalling &c.], is referred to.
Patent GB-352592-A (GB)
Title: Improvements in and relating to clamps for the adjustable connection of the metal members of scaffolding and like supports, such as those for the staging or platforms of derricks
IPC: E04G7/26
Filed: 1930-04-26
Abstract: 352,592. Scaffolding clamps; constructional ironwork. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Emsco Derrick & Equipment Co. ; 6811, South Alameda Street, Los Angeles, U.S.A.) April 26, 1930, No. 12946. [Class 20 (ii).] A clamp, for securing together a flanged girder and a second member arranged at an angle thereto, is adjustably connected to the latter by bolts and has opposed jaws which receive between them a flange of the girder. In one form, the clamp member 23, Fig. 2, engages the flange 20 of a horizontal girder 13 and is secured by bolts 34 to upstanding extensions 15 of a vertical post 11. The clamp comprises two jaws 24, 26, Fig. 3, the upper jaw 24 having a smooth inner face 25 while the. lower jaw 26 has teeth 28. Outstanding ears 30 have open. ings 31 through which the bolts 34 pass, the lowest part of the openings being in the same plane as the face 25 of the jaw 24. If desired, teeth 28 may also be provided on the upper jaw 25 and may be arranged on both jaws in a direction at rightangles to that shown. In a modification, Fig. 4 (not shown), the ears 30 are dispensed with, the clamp comprising two pairs of jaws spaced apart and connected by a cross-piece through which a single bolt 34 is adapted to pass.
Patent GB-732182-A (GB)
Title: Improvements relating to the sintering of powder metallurgical shaped articles
IPC: B22F3/10
Filed: 1953-05-08
Abstract: 732,182. Metal heating furnaces. METROCUTANIT, Ltd. May 8, 1953 [Oct. 1, 1952], No. 12952/53. Class 51 (2). [Also in Group XXII] In the sintering of a turbine disc 1 made from titanium-carbide with low melting auxiliary metals, the compacted disc is mounted on a tungsten shaft 10 supported in box of molybdenum sheet 9. The assembly is then inserted in an electric furnace having double walls 2, 3 through which cooling water is circulated, and a removable cover with a peep-hole 5. The shaft 10 is rotated from an external source 12 through a shaft 13, passing through a gland 14 and a molybdenum coupling 15. The heating is effected by molybdenum heating conductors 6 supplied through water-cooled cables 7. Baffle plates 8 are provided.
Patent GB-1375527-A (GB)
IPC: G21C19/08
Filed: 1973-03-19
Abstract: 1375527 Testing fuel elements HOCHTEMPERATUR-REAKTORBAU GmbH 19 March 1973 [18 March 1972] 12998/73 Addition to 1286545 Heading G6C The fuel elements of a pebble bed nuclear reactor are segregated by heating each element leaving the reactor core to at least 100‹ C., passing a stream of inert gas over the heated element for a predetermined dwell time, measuring the level of radio-activity of the gases released by the element into the inert gas stream, and operating a control device in dependence upon whether the level of radio-activity is less or greater than a predetermined level to cause the element either to be recirculated to the reactor core or to be rejected. As shown, fuel elements pass from the reactor (not shown) through a thermally insulated channel 1 and lock 2 to a furnace 3, conveniently comprising a plurality of chambers, in which the fuel elements are either maintained at approximately 300‹ C. or heated up to approximately 600‹ C., for a prescribed dwell time of about 3 minutes. The furnace 3 is connected to a helium circuit 4 including a compressor 5, a gas cleaning system 7, and a radio-activity detector 6. During the dwell time fission gases liberated from the fuel elements present in the furnace 3 are surrendered to the helium and their radio-activity is measured by the detector 6. The signal delivered by the detector 6 corresponding to the measured radio-activity is passed to an analyser 8 and subsequently to a control unit 9. After the dwell time, each fuel element is released from the furnace 3 through a downstream back 10. The analyser 8 sends a signal to the control unit 9 in dependence upon whether the radio-activity measured by the detector 6 exceeds a predetermined threshold value, and a flap valve 11 operated by the control unit 9 determines in response to a control signal from the analyser 8 whether the fuel element should pass back to the reactor via passage 12 or to a reject container via passage 13. When the fuel elements are heated up to 600‹ C., compared with the 300‹ C. at which they leave the reactor core, advantage is taken of a strong but short-term emission of fission gas which occurs at this higher temperature.
Patent GB-514311-A (GB)
Title: Improvements in apparatus for electrically testing the thickness of coatings upon basis metal
IPC: G01B7/06
Filed: 1938-05-02
Abstract: 514,311. Inductance measurements; determining physical properties of materials. TAIT, W. H. May 2, 1938, Nos. 13012 and 36882. [Class 37] Apparatus for testing and measuring the thickness of non-magnetic coatings upon magnetic material has means for compensating for differences in the material forming the base. Instead of removing a portion of the coating, an appreciably thicker standard layer of the coating is associated with the transformer testing apparatus. In a general arrangement, Fig. 1, two U-shape transformers 1, 2 are employed, the transformer 1 having thick layers coated upon or loosely associated with its pole-pieces. In another arrangement, the transformers are mounted back to back and are rotated to bring one or the other over the material tested. In a further arrangement, Figs. 3 and 4, a threelimbed core is employed, the primary winding being located on limb 9. Opposed secondary windings are located on the limbs 10, 11 and are connected to instrument 6 through rectifiers 5, 13. The core poles are spherical and one of them is provided with the thick coating 12. Specification 498,032 is referred to.
Patent GB-558503-A (GB)
Title: A device for forming tabs upon strips of adhesive tape
IPC: B65C11/00
Filed: 1942-09-15
Abstract: 558,503. Dispensing adhesive tape. JOHNSON & JOHNSON (GREAT BRITAIN), Ltd. Sept. 15, 1942, No. 13022. Convention date, Sept. 16, 1941. [Class 18] A holder 2 for pressure-sensitive adhesive tape 3 is arranged so that a finger-tab may be formed near the free end of the tape by providing a pivoted arm 10 moved by a finger-piece 20 and having at one end a surface 16a to which the end of the tape can be adhered by pressure, a similar adherence being occasioned at a surface 8 so that by actuating member 20 the tape is looped between the portions 8, 16a so that it may be pressed together to form tab. This may then be gripped to draw out any required length. Portion 16 may be a cutting edge. The tape drawn off may be of such a length that it may serve as an index tab for turning pages of a book.
Patent GB-119674-A (GB)
Title: Improved Apparatus for Driving Magnetos in connection with Internal Combustion Engines.
IPC: F02P1/00
Filed: 1917-09-12
Abstract: 119,674. Soc. Lorraine des Anciens Etablissements de Dietrich et Cie de Luneville. Jan. 29, 1917, [Convention date]. Addition to 119,672. Magnetos, driving.-A shaft coupling, for use in the magneto-driving arrangement for internal-combustion engines described in the parent Specification, comprises a member I in which is secured a laminated spring C, the ends of the spring engaging in two notches formed in the driving sleeve E; the member I is also formed with two slots in which engage the limbs of a fork H at the end of the engine crank-shaft.
Patent GB-450993-A (GB)
Title: Improvements in latches
IPC: E05C1/16
Filed: 1935-05-03
Abstract: 450,993. Latches. PARKES & SONS, Ltd., J., Union Works, Willenhall, and FRYER, E. C., and BUTTER, F. J., 17, Balfour Crescent, Wolverhampton, both in Staffordshire. May 3, 1935, No. 13174. [Class 44] In a latch having a bolt-tongue b<7> round which the latch spring D is placed, the bridgepiece E normally anchored to the casing to provide an abutment for the spring has the central portion e<2>, against which the spring bears, set back rearwardly with respect to the ends e which bear, under spring action, against shoulders b<5> on the side-members b<2> of a bifurcated tail lath B secured to the bolt head b. The bridge-piece has an aperture e<3> through which the tongue b7 slides when the bolt is retracted, and anchoring lugs e<4> which are engaged in apertures in the casing and cover. The above formation allows the bolt, bridge-piece, and spring to be removed, (for reversal, renewal, &c.) as a stable assembly. Lateral disengagement of the ends e from shoulders b<5> is prevented by bending the ends to a rearwardly concave formation, or by slitting each end to form three tongues, the lateral tongues being bent back to embrace the shoulder against which the central tongue bears. The bolt is retracted by a follower C engaging the bent-up ends b<3> of members b<2>, and rearward motion of the bolt is limited by shoulders b<6> engaging the bridge ends e.