baber/WOPTO huggingface dataset:
Patent GB-541222-A (GB)
Title: Electrically conductive devices and methods of making the same
IPC: H01B1/22
Filed: 1940-07-12
Abstract: 541,222. Resistances. STANDARD TELEPHONES & CABLES, Ltd. July 12, 1940, No. 11630. Convention date, July 13, 1939. [Class 37] A resistance having a large temperature variation comprises a plurality of conducting particles, a non-conducting body, and a plurality of electrodes, the body maintaining the electrodes in spaced relation and supporting the particles between them, whereby contiguous particles are in mutually contacting relation and the particles adjacent to the electrodes are in contact therewith, the body and particles having widely different values of co-efficient of thermal expansion. Conducting granules 10 are enclosed in a tube 11, into the ends of which conductors 12 are sealed. If the device is to have a negative resistance-temperature coefficient the granules 10 may be of carbon, having a high coefficient of expansion, and the tube 11 of quartz, having a low coefficient of expansion. To obtain a positive resistance-temperature coefficient, low expansion conductive particles such as carbon coated quartz spheres and a high expansion tube, for example of soft glass, may be used. In an alternative construction, the granules are maintained in microphonic contact by a matrix of plastic material, such as aluminium or other metal stearate, phenol resin, methyl methacrylate, cellulose acetate or nitrate, or a polystyrene. The conducting particles may be iron or nickel steel filings and may be mixed with powdered metal stearate and moulded into a block or disc. In another construction conducting particles are secured to the face of a block of insulating material. To obtain a positive resistancetemperature coefficient a layer of carbon-coated quartz spheres may be attached to the surface of a support of organic plastic material by spreading them over the surface and embedding by the application of heat and pressure. Metal electrodes may be applied by means of a Schoop spray. Alternatively the coated spheres may be mixed with some of the plastic material dissolved in a solvent and the mixture applied to the support.
Patent GB-270710-A (GB)
Title: Improvements in or relating to elastic fluid turbines
IPC: F01D11/04
Filed: 1927-05-03
Abstract: 270,710. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). May 7, 1926, [Convention date]. Addition to 266,360, [Class 122 (v), Stuffing-boxes &c.]. Axial-flow type; blades and nozzles.-The packing described in the parent Specification, and consisting of a rotary disc and a packing- groove to which constantly-renewed liquid is conveyed from outside with high tangential velocity, is described in Specification 269,176 as applied to the shrouding of the rotor blades in drum turbines, and the object of the invention is to obviate the necessity for packing the inner clearances of the stator blades or nozzles in drum turbines. With this object in view, the transformation of pressure energy into velocity energy is arranged to take place wholly or mainly' in the rotor blades, the stator blades serving merely to change the direction of the steam. The liquid packing is then applied only to the outer clearance of the rotor blades. An initial stage may be provided comprising fixed impulse nozzles, rotor blades, and fixed guide blades.
Patent GB-578430-A (GB)
Title: Improvements in and relating to sparking plugs and the electrodes therefor
IPC: H01T13/39
Filed: 1944-06-22
Abstract: 578,430. Sparking-plugs. MALLORY METALLURGICAL PRODUCTS, Ltd. June 22, 1944,. No. 11858. Convention date, June 22, 1943. [Class 7 (iv)] [Also in Group II] A sparking-plug consists of a central electrode 12 with a tip 11 formed predominantly of tungsten and a side electrode 10 formed predominantly of platinum. The electrode 11 may be formed of a material consisting of pure tungsten, tungsten-molybdenum-nickel alloy, tungsten-nickel-gold alloy, tungsten-nickel-copper alloy, tungsten-boron alloy, tungsten alloyed borides and nitrides of elements in the fourth, fifth and sixth groups of the periodic table,. tungsten-zirconium alloy or tungsten-uranium alloy. The side electrode may consist of a platinum base alloy containing molybdenum, beryllium, rhenium, niobium, tin, chromium, cobalt, iron, manganese, palladium, iridium, rhodium, ruthenium, osmium, tungsten or tantalum. The platinum alloy 40 of the side electrodes, Fig. 4, may be backed by strips 41 of base metal. For examples of alloys used see: Group II.
Patent GB-377223-A (GB)
Title: Improvements in or relating to shoe upper parts and methods of or means for making them
IPC: A43D11/00
Filed: 1931-04-22
Abstract: 377,223. Boot-making machines. UNITED SHOE MACHINERY CORPORATION, 140, Federal Street, Boston, U.S.A. -(Assignees of Osgood, W. P. ; Malden, Massachusetts, U.S.A.) April 22, 1931. No. 11884. Convention date, April 23, 1930. [Classes 17 (i) and 17 (ii).] Linings.-A shoe lining comprising pieces of sheet material with an overlapped connection, the thickness at the connection being reduced to substantially the thickness of the remainder. The connection is subjected to heat and pressure to cause the edge of each piece to merge smoothly into the surface of the material. The connection may be sewn, or, when the lining is of cotton duck treated with sizing material such as starch, this material serves to cement the plies together. A suitable machine for hot pressing the connection comprises an anvil 24, Fig. 6, co-operating with a pressing jaw 25 on a lever 43 pivoted at 44 to the frame of the machine. The members 24, 25 are heated by electric resistances behind cylindrical plugs 29, 32 each carrying a guardplate 30, 33 for facilitating the positioning of the work. The rear end of the lever 43 carries a lever 59 pivoted thereto at 60 and urged by a spring 63 against an adjustable stop 58 serving as a positive connection for the closing of the jaws, the spring 63 providing yield in their opening movement. The lever 59 is connected by a link 64 to a pivot at one side of an arm 65 adjustable in length and carrying an eccentric strap 73, the other side of the arm being pivoted to a link 108 pivoted at its other end to the frame of the machine. This linkage, by adjustment of the length of the arm 65, can be set to provide a predetermined dwell, in the closed position, of the jaw 25. The eccentric 74 is driven by a worm 88 on a shaft 83 on which is splined a clutch member 100 normally rotating with a driven pulley 91. The machine is provided with twin mechanisms, so that work can be changed on one while the other is exerting its pressure dwell. In case a faulty upper should require more time to position than is provided by the constant drive, a treadle 133, Fig. 1, is provided for withdrawing the clutch member 100, the treadle being provided with a latch 139 cooperating with a notch 141 for holding the clutch out of engagement. When the work is positioned, the rear closed end of the upper is threaded over a springy rod 112 so bent as to provide a support for a stack of uppers and to be tensioned by the work when this is positioned. On release of the pressure of the member 25, the rod 112 springs to normal position, withdrawing the work from between the members 24, 25, whence it slips down to the lower bend of the rod.
Patent GB-288834-A (GB)
Title: An improved mechanical device to make and sound chords on keyboard instruments for aural self-tuition
IPC: G10C3/30
Filed: 1927-05-04
Abstract: 288,834. Collison, F. A. May 4, 1927. Teaching and practising music; vamping-apparatus.-A device for sounding fortuitous chords on keyboard instruments to assist in aural selftuition comprises strikers B which are slidable loosely on a bar A and are locked in position by the descent of another bar E having a serrated undersurface e. The serrations e engage the pointed upper ends of the strikers B and position them an exact number of semitones apart. The device is applied to the rear half of the keyboard and moved till a shoulder l on one of the strikers fits a black key. Sideways pressure of the whole then moves any white note striker so that its tip m comes over the centre of a white key, the strikers B being sufficiently loosely mounted for the purpose. On the strikers B are adjustable and interchangeable stops p which determine the minimum intervals between them.
Patent GB-664851-A (GB)
Title: Improvements in and relating to the preparation of catalysts
IPC: B01J23/72
Filed: 1949-05-04
Abstract: Aniline is prepared by the hydrogenation of nitrobenzene at 300 DEG C. in the presence of an alkali-free foraminate catalyst prepared by the partial extraction of a copper-silicon alloy with liquid phenol or vaporized methanol (see Group III).ALSO:Alkali-free foraminate catalysts containing copper, cobalt, nickel, or iron are prepared from alloys of one or more of these metals with silicon and/or aluminium by treating the alloy at above 100 DEG C (preferably 180 DEG -300 DEG C) with a phenol or a monohydric aliphatic alcohol containing not more than four carbon atoms to extract a portion (not exceeding 70 per cent by weight) of the silicon and/or aluminium. Suitable alloys are copper-aluminium (40-80 per cent copper), copper-silicon (50-92 per cent copper), cobalt-aluminium (15-55 per cent cobalt), cobalt-silicon (30-75 per cent cobalt), nickel-aluminium (30-65 per cent nickel), nickel-silicon (30-85 per cent nickel), and iron-aluminium (30-60 per cent iron).  The catalysts may be used in processes of hydrogenation, dehydrogenation, hydrogenolysis, or reductive amination.  In examples a granular copper-silicon alloy is extracted with vaporised methanol or liquid phenol and is used for the hydrogenation of nitrobenzene to aniline (see Group IV (b).  Other examples describe the treatment of a nickel-silicon alloy with methanol, and a copper-aluminium alloy with phenol.  The Provisional Specification refers also to substantially complete extraction of the alloy to form powdered catalysts, and to the use of propanols, butanols, and alcohols containing up to six carbon atoms, as extracting agents.
Patent GB-541798-A (GB)
Title: Improvements in or relating to photoelectric cells
IPC: H01J40/16
Filed: 1940-07-19
Abstract: 541,798. Photo-electric cells. CINEMA-TELEVISION, Ltd., and TOMES, G. A. R. July 19, 1940, No. 11919. [Class 39 (i)] A photo-electric cell consists of a cylindrical envelope 1; the cathode being deposited on one end 2 of the envelope, which may be hemispherical, and the cathode lead 4 passing through the end of the envelope ; the light passes through the cylindrical surface. The anode consists of a flanged metal cup 5 and the cathode material is evaporated by a heater coil arranged in the cup and insulated therefrom at one end. The parts of the envelope on which the material is not to be deposited may be protected by movable shields, as described in Specification 541,79.4, and the anode may also be formed as a ring, as described in that Specification, The cathode may be deposited on a metal or other wall near the end of the cell instead of on the envelope itself.
Patent GB-1202257-A (GB)
Title: Tape roll for automatic tape player
IPC: G11B5/008
Filed: 1967-11-20
Abstract: 1,202,257. Record tapes. NEWELL INDUSTRIES Inc. 20 Nov., 1967, No. 11955/70. Divided out of 1,202,256. Heading G5R. A roll of recording tape 27 wrapped about a central cylindrical hub (24, Fig. 8) carries at its outer end a leader 33 which has extending longitudinally along its inner face an adherent surface area 34 and a non-adherent surface area 36, the portion of the leader 33 behind the non- adherent area 36 being thicker than the portion behind the adherent area 34 so as to urge a co-operating transducer (107) to a position in which it is out of contact with the adherent area. As shown, the leader 33 carries a layer of pressure-sensitive adhesive material 43 along which a central strip of recording tape is disposed to form the non-adherent area 36.
Patent GB-568631-A (GB)
Title: High-frequency electric heating
IPC: B27D1/02
Filed: 1943-07-22
Abstract: 568,631. Temperature measuring. GRENE, G. H. S., and WILD-BARFIELD ELECTRIC FURNACES, Ltd. July 22, 1943, Nos. 11959 and 11960. [Class 97 (iii)] [Also in Group XXXVI] In an industrial process involving the heating or cooling of packs of sheets or blocks, one or more plate or foil-type thermo-couple devices for measuring or controlling the temperature are placed in the pack. As shown applied to a pack 1 comprising a number of laminations corresponding to the number of sheets of plywood to be formed one lead for high frequency current is connected to the electrodes 2, 3 and the other to an electrode comprising a plate or foil-type thermo-couple device 4, 5, a measuring instrument 11 is provided and included in a circuit which includes also chokes 12 and condensers 13 to protect the instrument 11. In a modification the pack may be heated by steam &c. The thermo-couple devices 4, 5 may be provided with expansion slots 14. Specifications 20009/14 and 216,950, [both in Class 53], are referred to.
Patent GB-997496-A (GB)
Title: Electrical switchgear
IPC: H01B3/40
Filed: 1963-03-26
Abstract: Curable compositions which are used in the manufacture of insulating parts for electrical switchgear comprise a cycloaliphatic 1,2-epoxy compound having an epoxy equivalency greater than 1 and as curing agent an aliphatic or cycloaliphatic polycarboxylic acid anhydride. The epoxy compound may be an epoxidized hydrocarbon, ether, ester, polyester, acetal or telomer and many such polyepoxides are specified. Many suitable polycarboxylic acid anhydrides are specified.  The mixtures may also contain catalysts, e.g. tertiary amines, their salts and quaternary ammonium compounds, alkali metal alcoholates such as the sodium salt of 2,4-dihydroxy - 3 - hydroxymethylpentane; fillers, e.g. rutile, mica, quartz meal, rock meal, e.g. rutile, mica, quartz meal, rock meal, alumina trihydrate, calcium carbonate, ground dolomite, gypsum or barium sulphate, and fibres or fabrics of glass, polyesters, nylon, polyacrylonitrile, silk or cotton; and reactive diluents such as vinylcyclohexene monoxide, 3,4-epoxy-tetrahydrodicyclopentadienol - 8, 3,4 - epoxy - hexahydrobenzal glycerol or 3,4 - epoxy - cyclohexane - 1,1 - dimethanol acrolein acetal. In the examples, a polyglycidyl ether of bisphenol A and phthalic anhydride are also used for the purposes of comparison.
Patent GB-763056-A (GB)
Title: Improvements relating to constructional elements, particularly such consisting of slotted metal bars of angle section
Inventor: COMINO DEMETRIUS
IPC: A47B96/14
Filed: 1952-05-09
Abstract: 763,056. Structural angle bars, channels &c. DEXION, Ltd. April 30, 1953 [May 9, 1952], No. 12004/53. Divided out of 763,045. Drawings to Specification. Class 20(2) The subject-matter is described in Specification 763,045 and the invention is for an angle bar, channel &c. having two parallel longitudinal lines of slots or groups of holes in one or more flanges arranged so that two bars can be connected by four bolts arranged in a square and a third line of holes is equidistant between the two lines. Specification 620,696 also is referred to.
Patent GB-1367631-A (GB)
Title: Machinery for continuously winding materials helically on to rods or tubes
IPC: B65H81/08
Filed: 1970-03-13
Abstract: 1367631 Covering rod-like articles by winding IMPERIAL CHEMICAL INDUSTRIES Ltd 19 April 1971 [13 March 1970] 12212/70 Heading B8G [Also in Division F2] A machine for helically winding material on to a rod-like workpiece comprises means for: (a) continuously advancing said workpiece to a winding station; (b) rotating the workpiece about its axis; (c) supplying said material tangentially to the workpiece; (d) continuously withdrawing the product from the winding station; (e) rotating the product about its axis; the arrangement being such that: (a) and (b) are situated anterior to the winding station; (d) and (e) are situated beyond the winding station; (a) and (d) are drivably coupled to operate at the same linear velocity; and (b) and (e) are drivably coupled to operate at the same rotational speed.  Fig. 3 is an example of a device that may be positioned anterior to the winding station; there being an identical device beyond the winding station. The device comprises a drum 29 rotatably mounted on end plates 21. In the drum 29 are a plurality of endless tracks 36 supporting the body to be wound and causing it to move axially. Each track 36 is supported by a parallel linkage mechanism 33, 33 carried by slippers 32 mounted on tie rods 27. Rotatably mounted in the drum 29 is a unit comprising an internal gear ring 43 that is driven by a sprocket wheel 48. As the ring 43 rotates it meshes with planet gears 49 carried by the drum 29 and there gears 49 drive the endless belts 36 via bevel gears 39 and chains 38 to cause the belts 36 to move the workpiece axially. The drum 29 is rotated by a sprocket 31 and this rotation causes the endless tracks 36 to rotate the workpiece. A drive shaft interconnects the sprockets 48 of the upstream and downstream devices. A further drive shaft interconnects the sprockets 31 of the upstream and downstream devices. The material to be wrapped around the workpiece is carried by a table that can be swung about a pivot extending perpendicularly through the axis of the workpiece. By swinging the table about this pivot the angle at which the material approaches the workpiece can be varied.
Patent GB-1152313-A (GB)
Title: Frequency Discriminator
IPC: H03H11/04
Filed: 1968-03-14
Abstract: 1,152,313. Frequency discriminators. INTERNATIONAL STANDARD ELECTRIC CORP. 14 March, 1968 [22 March, 1967], No. 12397/68. Heading H3A. In a frequency discriminator for pulse signals having a recurrence period within a predetermined range, the pulse signals are applied to a semi-conductor device which becomes non- conductive after an interval equal to the minimum period of the range, the output of the semi-conductive device being fed to a peak detector which provides the output of the discriminator. In Fig 3, negative pulses from source 1 are applied through resistance 2 to the base of transistor 8 which is biased to conduction by a positive potential applied through resistance 10. After a delay T the transistor cuts off, thereby providing pulses at its collector of an amplitude dependent on the difference between the period to of the pulses and the delay interval T (Fig. 5, not shown) provided to is greater than T; if t 0  is less than T there is no output. The amplitude of the pulses at the collector is detected by a transistor 11 and a resistance-capacitor circuit 13, 14, the time constant of which is equal to the maximum value of t 0 . The value of T depends on the positive bias applied to resistance 10, and in Fig. 3 this bias is derived from the output by a smoothing circuit 15, 16 so that if the pulses are frequency modulated the circuit is tuned automatically to the centre frequency, The diode 12 is only required if the battery voltage is higher than the permissible blocking voltage between base and emitter of transistor 11. In a modification, Fig. 1 (not shown), the transistors 8 and 11 are replaced by semi-conductor diodes.
Patent GB-463618-A (GB)
Title: Improvements in or relating to knitting machines and in the production of fabric thereon
IPC: D04B1/06
Filed: 1935-06-25
Abstract: 463,618. Knitting. JONES, T. H., and MILLS, R. K. June 25, 1935, Nos. 12441 and 21186. [Class 74 (ii)] Relates to the production of ladderresisting knitted fabric of the kind shown in Fig. 9, on straightbar machines, by means of bearded needles with the hooks turned back at 3. The dividing sinkers 6 are formed with extra throats 10. The lower forward ends of the jack sinkers 4 have no nebs 11 but are otherwise of somewhat similar shape to the sinkers 6. The action of the knocking-over bits is assisted by a holding- down bar 12, Fig. 11. The invention is described as applied to a Wildman type of machine, with a single head and a number of endless traversing flexible thread carrier bands 25 selected by catch elements 28. The slurcock is actuated by rotating a spiral 32. One set of cams on the shaft 17 controls the formation of normal stitches and another set the formation of the additional locking stitches. The slurcock catch bar 35 is operated through connections 36 ... 40, from a cam 33 for the course of normal loops, and from a cam 34 for the locking loops. The roller 36 is shifted from one cam to the other by selector mechanism controlled by a shaft 43. Another pair of cams 44, 45 on the shaft 17 provide for the proper vertical movement of the needle bar 26, when making normal and locked loops, as the case may be, through connections 46... 51. The roller 46 is shifted as required by an arm 53 on the shaft 43. Two other cams 54, 55 impart in-and-out movements to the needles through connections 56 ... 59, the roller 57 being shifted as required by an arm 60 mounted on a selector shaft 42. A quality cam 61 modifies the action of the cams 54, 55 by acting on an extension 69 of the arm 56 through connections 68 ... 62. For determining the quality of the locking loops, the selector shaft 42 is shifted to bring the pivoted quadrant arm 66 under a fresh set of studs 68. The holding- down bar 12 is controlled by cams 81, 82, when producing normal and locked stitches respectively. The shaft 17 is shogged when fashioning by loop transference is to be done and this brings the rollers such as 36 under control of the cams for use during fashioning. The locking courses may be suppressed at any time and ordinary fabric produced, e.g. for the welt. To improve the selvedge of the locking courses, the locking yarn carrier is given an extra traverse, amounting to one or two needle divisions. This enables the yarn to be brought under better control at the end of a locking course. The dividing sinkers at each selvedge are also provided with extra long throats 152, Fig. 29. Specifications 329,098, [Class 74 (ii)], and 422,779 are referred to in Provisional Specification 21185 /35.
Patent GB-130463-A (GB)
Title: An Improved Device for Holding Two Sheets of Paper Containing Pattern Draughts Contiguous to each other when both Draughts are to be Read off Together.
Inventor: DRINKWATER JAMES HENRY
IPC: A47B27/00
Filed: 1918-07-31
Abstract: 130,463. Drinkwater, J. H. July 31, 1918. Cards, punching.-A device for use in simultaneously reading two weaving-pattern draughts, as is required in punching at one operation two patterns on one set of cards, comprises a board provided with holding-means for the draughts, and a slot through which both draughts are passed in such a manner that a line on one is adjacent to a line on the other. The device may consist of a slope A formed with slots B, D, through which the draughts G, H respectively are passed, and a slot C, through which both draughts are passed. The draughts are held by bars E, F, which are secured by studs M passing through slots L'. An indicating-bar J is arranged over the slot C, the draughts being adjusted so that the two lines being read are close to the edges of the bar. The bar is detachable, being formed with recesses fitting over studs N. The slope is hinged to a base P and is supported by struts.
Patent GB-787842-A (GB)
Title: Improvements in or relating to a landing for a passenger conveyor belt
IPC: B66B29/06
Filed: 1954-04-30
Abstract: 787,842. Passenger conveyer belts. STEPHENS-ADAMSON MFG. CO. April 30, 1954 [June 1, 1953], No. 12571/54. Class 78(1). A passenger transport belt 10, Fig. 2, is provided adjacent one end with a landing 12 formed with a safety guard comprising a strip 13 of rubber-like material secured by rivets 16 between strips 14, 15 and formed with a concave surface 17 complementary to the surface 18 of the belt. In a modification, Fig. 3, the resilient strip 26 is secured by bolts 28 between plates 24, 27, the plate 24 being secured to the landing 21 by bolts 23.