baber/WOPTO huggingface dataset:
Patent GB-410644-A (GB)
Title: Multi-grid thermionic tube, and connection system for multi-grid thermionic tubes
IPC: H01J19/82
Filed: 1933-07-22
Abstract: 410,644. Thermionic valves. RADIOAKT.-GES. D. S. LOEWE, 10, Wiesenweg, Steglitz, and STOFF, W., 15, Culmstrasse, both in Berlin. July 22, 1933, No. 20662. Convention date, July 22, 1932. [Classes 39 (i) and 40 (v).] In a valve having a screening grid and two control grids, one of the control grids produces a variable amplification factor. As shown, the variable-mu control grid 3 is arranged about a cathode 2<a> and an ordinary control grid 4 about another cathode 2b, both being surrounded by a rectangular screening grid 5 ; the control grids are provided with cooling plates 6. The anode consists of two portions of semi-cylindrical shape. In a modification, the control grids are arranged about a single cathode. The valve may be used for automatic volume control or in a heterodyne receiver, the incoming signals being applied to the grid 3 and the heterodyne frequency to the grid 4.
Patent GB-1034026-A (GB)
Title: Device for practising target shooting
IPC: F41G3/26
Filed: 1965-05-17
Abstract: 1,034,026. Teaching shooting. D. G. VIDAL. May 17, 1965 [May 18, 1964], No. 20790/65. Heading F3C. A device for practicing target shooting with a fire-arm having a barrel, a chamber for housing a cartridge and a firing-pin comprises two separate portions, one a firing-pin sensitive portion, Fig. 1, for housing in the chamber and the other a barrel portion, Fig. 2, for housing in the barrel. The firing-pin sensitive portion comprises a cartridge shaped electrically conducting casing 2 in which are a block 5 and an electrically conducting contact member 8. The barrel portion comprises an electrically insulating casing 12 in which is held a radiant energy source 14, pole 29 of which is connected by conductor 15 to one side of an electrical energy source and pole 16 of which is connected to an electrically conducting member 23, and a spring-loaded electrically conducting member 19. When the trigger of the fire-arm is pulled the firing-pin 27 strikes the block 5 which through the spring 7 moves contact member 8 to the right compressing spring 10, member 19 also being moved to the right, compressing spring 18, to contact the member 23 to complete the electrical circuit through the members 23, 19, 8, 2, chamber 26, barrel 13 and conductor 31. Spring 7 becomes partly compressed after the two springs 10, 18 have been fully compressed and while the spring 7 is expanding the circuit is held completed to pass a beam of radiant energy down the barrel, the beam being concentrated by the adjustable device 34. The radiant energy may be luminous or infra-red and the target may have an arrangement of photo-electric cells to emit signals according to the position of the " hits " or may be a film-sensitive to the radiation. In a modification of the barrel portion members 19 and 23 are integral.
Patent GB-444315-A (GB)
Title: Improvements in the production of gaseous fuel mixtures
IPC: C10L3/00
Filed: 1934-07-16
Abstract: A fuel mixture obtained from coke oven or other hydrocarbon - containing industrial gases by compression, cooling, or absorption processes, and for the most part liquid at normal temperature and 20--30 atmospheres pressure consists of about 20--30 per cent ethane and ethylene, 30--40 per cent propylene and butylene, and 30 per cent propane, butane, and pentane, with small quantities of carbon monoxide, methane, nitrogen, hydrogen, &c.  The mixture may also include benzene obtained from the coke oven gas, or benzine or other washing oils, e.g. toluol, heavy benzenes, resulting from washing the coke oven gas in the extraction process.  In an example a coke oven gas is compressed to 12 atmospheres and cooled to 140 DEG  C. by partial expansion. Liquefied constituents separated out comprise a mixture of 15 per cent ethylene, 7 per cent ethane, 39 per cent propylene and butylene, 30 per cent propane, butane, and pentane, 6 per cent methane, and 1 per cent carbon monoxide with a residue of benzine and benzene.
Patent GB-378624-A (GB)
Title: Improvements in and relating to dynamo electric machines
IPC: H02K23/40
Filed: 1931-07-21
Abstract: 378,624. Dynamo-electric machines. MOSS, E. W., 75, Victoria Street, London.- (Burleigh, J. W. ; 171, South Lake Avenue, Pasadena, California, U.S.A.) July 21, 1931, No. 20860. [Class 35.] Cores; coils ; cooling ; machines w i t h two o armatures.-In a machine wherein the main poles are disposed non-radially, and a single interpole is provided per pair of main poles, the magnet frame is of irregular hexagonal shape externally, and the main poles are so arranged that the distance between a poletip and the'junction of the pole with the yoke is at least twice as great in the case of one tip as for the other. In the form shown, the ratio of the dimensions A, B is 3-1, and the pole shoes may be detachable and may have tips 11, 12 of material of higher reluctance. The poles may be solid or laminated and the tips may be skewed. The cross section of the yoke portions 2 between the main poles 1 may be greater than the part 3 to which the interpoles 4 are attached, but the portion which carries the interpole flux may be larger. The field coils may be subdivided into portions 7<1>, 7<2>, 73 in order to utilize more fully the interpole spaces, and in an alternative arrangement sections 7<1>, 7<2> are arranged side by side on the interpole side of the pole and are superimposed on the other side, the portion 7<3> being omitted, Ventilating openings may be provided at each corner of the end brackets in addition to the main openings and the poles may have circumferential ventilating slots in alignment with radial ducts in the armature. The armature of an auxiliary machine may be mounted on the main shaft and its field system may be supported by an end bracket of the main machine. The main field coils and interpole coils 8 may have ventilating spaces, may have square, round or other section, and different sections of conductor may be used in the portions 7<1>, 7<2>, 7<3>.
Patent GB-1074752-A (GB)
Title: Encapsulated capacitor
IPC: H01G13/00
Filed: 1965-05-18
Abstract: 1,074,752. Electrolytic capacitors. P. R. MALLORY & CO. Inc. May 18, 1965 [June 4, 1964], No. 20934/65. Heading H1M. Aluminium electrolytic capacitor 17 is wound on to a spool of thermoplastic material and impregnated with electrolyte through apertures 15 in flange 11 of the spool. Metal tabs 18 and 19 are bent across flanges 11 and 12 so that there is no contact between the impregnated capacitor body and weld junctions 22 between the tabs and leads 20 and 21. The impregnated capacitor is positioned in a mould cavity, as illustrated in Fig. 3 (not shown) by means 16, and encapsulated by injection moulding of the same thermoplastic material as the spool, or a compatible material, which may be a mouldable thermosetting plastic. The thermoplastic material may be polyethylene, polypropylene, polystyrene or polycarbonate. Mouldable thermosetting materials include epoxy, phenolic and diallyl phthalate resins.
Patent GB-389359-A (GB)
Title: Process for the production of alumina and alkali phosphates
IPC: C01F7/0673
Filed: 1932-07-25
Abstract: The product obtained by calcining aluminium phosphate with caustic alkali, alkali carbonate, or alkali sulphate and carbon is leached with caustic alkali and from the solution obtained alkali phosphate is separated by crystallization and a part of the alumina by hydrolysis; the mother liquor, containing free caustic alkali and sodium aluminate, with residual alkali phosphate, is used as leaching agent for the next batch of decomposed phosphate. In an example, a mixture of phosphate and sodium carbonate is reacted at 800 DEG  C. in a rotary furnace.  The solution obtained by leaching with caustic soda is filtered from the residue above 75 DEG  C. and then cooled to 17 DEG  C. to separate the bulk of the sodium phosphate.  About half the alumina is then precipitated by hydrolysis at 30 DEG  C., and the mother liquor used for the leaching step in a second operation.  By using waste alkali lyes from the artificial silk or bauxite industries for effecting the original leach, large crystals of sodium phosphate are obtained and the alumina is separated substantially free from silica.
Patent GB-465328-A (GB)
Title: Improvements in firing mechanism for automatic firearms
IPC: F41A5/18
Filed: 1935-07-29
Abstract: 465,328. Automatic guns. GOBIERNO DE LOS ESTADOS UNIDOS MEXICANOS. July 29, 1935, No. 20970 /36. Convention date, July 28, 1934. Divided out of 465,217. [Class 92 (ii)] Relates to firing mechanism adjustable for " single shots," " automatic fire," or " safe " of the kind in which a sear-lever 70, mounted for pivotal and longitudinal movement, has a tooth 78 at one end for engagement with the trigger 79, and at the other end a tooth 83 engaging the breech block and a projection 82 pressing against the faces of a cut-away rotary change-fire stop 84. According to the invention, a leaf spring 87 controlling the trigger is connected at one end to the trigger and at the other end presses on the stop 84 to maintain it in its adjusted positions. The parts are shown adjusted to fire single shots with the trigger in the pulled position. In this position, the spring 89 has moved the sear longitudinally to the right against a face on the stop so that the tooth 78 has slipped over the shoulder 94 on the trigger to release the sear. On rotation of the stop 84, a second face holds the sear to the left of the position shown so that no slipaction takes place, the seat being held down as long as the trigger is kept pulled for automatic fire. On further rotation of the stop to the safety position, its rounded part y prevents rotation of the sear. Specification 245,489, [Class 92 (ii)], is referred to.
Patent GB-184182-A (GB)
IPC: B42F9/00
Filed: 1922-08-01
Abstract: 184,182. Patina, Fachhaus f³r Maschinen und B³robedarf Ges. F. W. Starke. Aug. 8, 1921, [Convention date]. Clamping-devices.-In a filing-device for papers, of the kind in which unperforated papers are held by the free ends of a wire spring secured by a base-plate along the back of a cover, corrugations are provided in the gripping- surfaces, and means for releasing the pressure are provided by flaps hinged to the ends of the wire. As shown, a wire clip c, Figs. 1 and 3, fastened to the underside of a base-plate b has its spring legs d, e bent at right-angles to provide ends f , f<1> upon which flaps g, g<1> are hinged. The portions j, Fig. 5, of the flaps, which are rolled around the ends f, f<1> to serve as bearings, do not extend the whole width of the flaps, and the end portions of the wires are bent downward at i, i' to coact with corresponding indentations k, k<1> in the base-plate to grip the papers n. Further gripping is provided by corrugations in the underside of the bent portions i, i' of the wire, and on the upper side o of the base-plate. The flaps g, g<1> are provided with stops h, h<1> and can be raised vertically with the fingers of one hand to provide a lever for opening the clip.
Patent GB-1005878-A (GB)
Title: Modified epoxy resins
IPC: C08G59/16
Filed: 1962-05-31
Abstract: 5 Mols. of a diglycidyl ether, prepared from epichlorhydrin and 2,2-bis-(4-hydroxyphenyl) propane, are esterified with a mixture of 2 mols. of an acid of formula <FORM:1005878/C3/1> in which R is chlorine, bromine or lower alkyl; n is 0, 1 or 2 with the proviso that when n=0, the phenolic OH groups are attached to the rings in the 4 positions; and 3-14 mols. of an ethylenically unsaturated aliphatic monocarboxylic acid having 10-36 carbon atoms in its hydrocarbon chain.  1 Mol. of the diglycidyl ether is first reacted with two mols. of the substituted pentanoic acid, and the remaining 4 mols. are then added together with the unsaturated aliphatic acid. All the examples use 4,4-bis-(4-hydroxyphenyl) pentanoic acid.  A number of suitable derivatives is also listed.  Examples 1-3 use EPON 828 and Examples 4, 5 use "Araldite 6005" (Registered Trade Mark). Example 1 uses tall oil fatty acid; Example 2 a mixture of dehydrated castor oil fatty acid and soya fatty acid; Example 3 a mixture of dehydrated castor oil fatty acid and tall oil fatty acid; Example 4 a mixture of dehydrated castor oil fatty acid and tung oil fatty acid, and Example 5 a mixture of dehydrated castor oil fatty acid and linseed oil fatty acid.  Example 6 uses a 50% solution of the resin Example 1 in xylene, together with cobalt naphthenate to form films. Example 7 uses a mixture of the resin of Example 4 with a melamine-formaldehyde resin in methyl ethyl ketone.  Example 8 uses a mixture of the ester of Example 3 with a melamine-formaldehyde resin in xylene with TiO2 as pigment as a coating composition.  The esters may also be used to modify ureaformaldehyde or phenol-formaldehyde resins.  Specification 768,206 is referred to.  Reference has been directed by the Comptroller to Specification 792,028.ALSO:Esters of epoxy resins with certain pentanoic acid derivatives and with unsaturated fatty acids, are used for coating compositions, especially for interior coatings on sheet metal cans.  In Example 7 an ester from "Araldite 6005" (Registered Trade Mark), 4,4-bis(4 hydroxyphenyl) pentanoic acid, dehydrated castor oil fatty acid, and tung oil fatty acid was mixed with melamine-formaldehyde resin in methyl ethyl ketone, spread on metal plates and baked.  In Example 8 a similar mixture containing also TiO2 was sprayed on a metal panel and baked. Specification 768,206 is referred to.  Reference has been directed by the Comptroller to Specification 792,028.
Patent GB-785080-A (GB)
Title: Agent for protection against moths and beetles
IPC: A01N43/24
Filed: 1955-07-20
Abstract: A composition for protection against moths and beetles comprises a mixture of a sulphonated o,o1-dihydroxy-triphenyl methane derivative and a dibutyl ether of a salt of a 2,21-dihydroxy tetra- or penta-chlorotriphenyl methane sulphonic acid.  In examples, a solution is formed by boiling in water a mixture of the methylene ether described in Example 1 of Specification 726,789, [Group VIII], and the sodium salt of 2,21 - di - n - butoxy - 3,5,31,51,411 - pentachlorotriphenyl - methane - 611 - sulphonic acid.  Dyestuffs or beleaching materials may be added.
Patent GB-211420-A (GB)
Abstract: 211,420. Aktiebolaget Original-Odhner. Sept. 15, 1922. Addition to 186,071. Multiplying and dividing apparatus. - The coupling wheels for effecting the reduction from decimal to monetary or other non-uniform rotation as described for operation by manual means such as a key in the parent Specification are now arranged to be operated automatically by means carried on the laterally-movable totalizing- counter carriage. These coupling wheels 7<a>, 8<a>, 9<a>, 10<a> are carried on a sleeve 33, slidably keyed to the shaft 6 and having a groove 38 engaged by a pin 37 on a bell-crank lever 35 pivoted at 36 to the cover plate of the machine. The other end of this lever has a pin 39 engaging in a slot 40, 41, 42 in a plate 43 adjustable on a guide 44 carried by the totalizing-counter carriage. As this carriage is moved from right to left the slot 40, 41, 42 causes the lever 35 to move about its pivot and move the sleeve 33 so that the wheels 7<a> &c. are caused in turn to engage with their respective transmission wheels 11. By having the correct number of teeth on the wheels 7<a> &c. the device can be adapted for calculations in yards, feet, and inches, or tons, hundredweights, quarters, and pounds &c.
Patent GB-636917-A (GB)
Title: Improvements in or relating to oil burner sprayers
IPC: F23D11/28
Filed: 1947-08-05
Abstract: 636,917. Oil burner sprayer. TURNER, M., and PARSONS & MARINE TURBINE RESEARCH & DEVELOPMENT ASSOCIATION. Aug. 5, 1947, No. 21181. [Class 75 (i)] A control system for an oil burner sprayer incorporating a spring or like actuated valve which has oil under pressure applied to one side of a piston or diaphragm connected to the valve, oil being allowed to pass to the other side of the piston or diaphragm by a throttling passage, and so exert an equal or reduced pressure as determined by a remotely situated valve controlling the escape of oil. The burner sprayer comprises a cut-off valve a connected to a piston b which is provided with a throttle or bleed passage h and loaded by a spring d. Oil under pressure passes by a port e to exert a pressure on one face of piston b and passing through the bleed passage h also exerts a pressure on the rear face. If a remote valve g is shut the pressures on the opposite sides of the piston build up to a balance whereby the valve a is closed under the action of the compression spring d. When the remote valve g is opened the pressures are unbalanced and the piston b moves against the spring to open valve a. The control valve g may be operated by hand, oil relay or solenoid. The throttling passage may be provided by an increased clearance between the piston b and the cylinder wall.
Patent GB-206243-A (GB)
Title: Improvements in or relating to recording apparatus for testing and like measuring instruments
IPC: G01N3/06
Filed: 1922-08-03
Abstract: 206,243. Bourne, H. B. Fox-, and Bourne, W. Fox-. Aug. 3, 1922. Disc recording-apparatus; modifying scale of records; photographic recorders. -Relates to recording-apparatus for measuring instruments for testing and the like and comprises a chart and two elements, two of which parts are movable parallel to a line proportionally to two quantities to be plotted, the two elements having transverse extensions whose intersection records the quantities. As shown applied to means for testing a rubber ring 14 the elements 21, 17 slide respectively on the frame 10 and a parallel wire 12 and carry extension members 26, 28 the intersection of the knife-edged faces of which, against a record sheet 32 between them, traces the stress strain curve. The tension spring 19 is fitted between the element 21 and a bracket 16 secured to the element 17, to which the extension 28 is pivoted so as to facilitate intermittent impression strokes by a pivoted yoke 30 and an electromagnet 42. To equalize the strain the ring 14 under test is rotated, as by a weighted sprocket chain rotating the fixed anchorage pulley 13, which rotation may operate an intermittent switch in the recording magnet circuit, the ring passing round a second pulley 15 carried on the bracket 16. In order to permit the scale of the record to be varied, one or both of the intersecting elements may be pivoted to vary the inclination. Thus the arm 26 can be locked at any desired inclination according to a fixed scale 24. Since the operative edge of the bar is not readily visible the outward edge 25 is read against the scale 24 which is correspondingly set at a suitable angle. The graduations correspond to cross-sectional areas of the specimens and adjustment of the arm 26 thereto together with a corresponding change of spring 19 enable curves of a series of different specimens to be suitably juxtapositioned to enable their characteristics to be readily compared. The apparatus may be operated by hydraulic or other power means and instead of intersecting arms, slots in plates may be employed and the record obtained photographically.
Patent GB-606517-A (GB)
Title: Buffers
IPC: B61G11/14
Filed: 1945-08-21
Abstract: 606,517. Buffers for railway vehicles. MINER, Inc., W. H. Aug. 21, 1945, No. 21395. Convention date, Sept. 8, 1944. [Class 103 (v)] A friction buffer for railway cars comprises a housing A closed at its rear end, a friction shock-absorber C within the housing and including a friction casing 27 closed at'its front end, the friction shock-absorber bearing against the closed rear end of the housing A, a buffer head B slidable within the housing A, and springs D interposed between the buffer head and the closed front end of the casing 27 for absorbing light impacts. The buffer head B is formed with three out-turned flanges 23 which slide between longitudinal guides 17 on the inside surface of the front cylindrical portion of the housing A, and the front end of the hexagonal casing 27 is provided with a hexagonal boss 32 engageable with a correspondingly shaped opening 26 at the end of the buffer head cylinder 21 to prevent rotation of the buffer head while the friction shock-absorber is in operation. The latter comprises three V-shaped friction shoes 28 located between the rear end of the casing 27 and a wedge block 29, springs 30 being disposed between the front closure member of the casing, and the shoes and wedge block. Slotted holes 20, 37, 38 are provided in the members of the friction shock absorber for the insertion of a T-headed bolt for compressing the springs 30 while the unit is being assembled.
Patent GB-228496-A (GB)
Title: Improvements relating to liquid level indicators
IPC: G01F23/02
Filed: 1924-09-10
Abstract: 228,496. Gage, A. Jan. 29, 1924, [Convention date]. Gauge glasses and the like. -For facilitating the reading of a gauge glass, a number of light rays are directed through the gauge, and means are provided for cutting off the rays which pass through the space above the water and are not refracted to the same extent as those passing through the water. Rays of light from electric Lamps are directed through a gauge tube 1 by a plate 9 having a number of inclined apertures 10. The light refracted by the water in the tube passes through inclined apertures in a plate 11 placed at the front of the tube and the light passing above the water is cut off. A glass plate 12 with prism or lens-shaped projections is placed in front of the plate 11; alternatively, the front of the gauge mav have a number of openings fitted with differently coloured glass covers. The apparatus may be used to control an automatic signal or alarm device.
Patent GB-320432-A (GB)
Title: Improvements in calendars or showcards
IPC: B42D5/04
Filed: 1928-07-24
Abstract: 320,432. Gaunt, C. F. July 24, 1928. Date indicators. - A calendar or show card comprises a backing member and a guide member or members upon which movable date sheets that may carry advertisements are mounted. The guide members are formed of wide strip metal and may be rigidly or detachably associated with the base member and the base member may be arranged so as to represent, partially or wholly in outline, a human figure or other object. In the form shown in Figs. 1 to 4, a backing member 1 of irregular outline is composed of two thin sheets 4, 5, of metal secured together by lugs 6 and separated by an intervening layer 7 of cardboard or other material. The sheet 5 is formed with pressed-out ribs 8 and recesses 11 forming bearings for the trunnions of a supporting strut 9. The guide member is formed as a loop 13 and is secured, as by rivets 14, to the backing member 1. Slotted date or advertising sheets 16 are mounted on the loop 13 before securing it to the member 1 and these sheets can be swung from the front to the rear as desired. An aperture 18 in the front plate 4 is provided to expose the month or day name on sheets 20 mounted in a guide member or receptacle 21 formed from a stamped metal blank with flanges 25 gripped between the front plate 4 and intervening layer 7. In the form shown in Fig. 6, the loop 13 has end portions 26 pivoted to a bracket 28 secured to or integral with the backing member and so arranged that the loop can be reversed for the purposes of exposing the opposite faces of the sheets 16. In a modified form Fig. 10, the guide members are constituted by a strip of sheet metal bent to form tubular members 32 adapted to be removably attached to the backing member by means of spring clips 34. To prevent the sheets being lost a flexible member such as a chain or cord is provided to attach them to the backing member. To reduce the number of sheets the units and tens figures of the date may be marked on separate series of sheets each sheet being marked on both sides.