baber/WOPTO huggingface dataset:
Patent GB-521818-A (GB)
Title: Improvements in or relating to vacuum tubes
IPC: H01J7/18
Filed: 1938-11-28
Abstract: 521,818. Barium beryllate. MARCONI'S WIRELESS TELEGRAPH CO., Ltd.. Nov. 28, 1938, No. 34542. Convention date, Nov. 27, 1937. Drawings to Specification. [Class 1 (iii)] [Also in Group XL] For liberating alkaline earth metals for gettering or for producing thermionic cathodes without evolution of gas, a compound containing the metal and beryllium is employed along with a refractory reducing agent, such as tantalum, tungsten, molybdenum, columbium, titanium, zirconium, hafnium, vanadium or silicon. The preferred material is a compound of barium with beryllium and oxygen, believed to have the formula Ba Be 0 2 . It may be prepared from barium carbonate, hydroxide, or oxide, and beryllium oxide by heating, proportions and temperatures being given. For gettering the compound may be placed in the cavity of strip of tantalum of a U-shaped crosssection which is heated to 1300‹C. to liberate the barium, or the reducing material, such as tantalum or silicon may be mixed with the compound as powder. To produce a thermionic cathode a filament of tantalum or molybdenum is coated with the material and heated for a short time to 1400‹C. Specifications 299,857, [Class 39 (i)], and 494,150, [Group XL], are referred to.
Patent GB-1083283-A (GB)
Title: Vortex separator
IPC: B04C5/12
Filed: 1964-08-25
Abstract: 1,083,283. Cyclone separators. J. M. VOITH G.m.b.H. Aug. 25, 1964 [Aug. 26, 1963], No. 34684/64. Heading B2P. A cyclone for clarifying suspensions or liquids containing impurities comprises a vortex chamber 1, Fig. 1, having a tangential inlet 2 of the suspension or liquid to be clarified and an outlet 3 for the removal of heavy impurities, an off-take tube 6 for the discharge of suspension or liquid having an inlet end portion which decreases in the direction of flow or, as shown, is of constant cross-section, and a discharge tube 10 mounted within the tube 6 for separating and discharging light impurities. In operation, gases separated from the suspension or liquid, accumulate in a central core 11 which rises upwardly and together with the light impurities 12 is removed through the discharge tube 10 which is axially adjustable and can be exchanged or has its end portion exchangeable. The clarified suspension or liquid is removed through a tangential outlet 9. In Fig. 2, the gases are removed through an exchangeable tube 15 adjustably guided in a bush 17 and provided with a throttle device 19 which can be adjusted to regulate the pressure in the gas core 11 to stabilize the latter. The inlet ends of the tubes 6, 10 and 15 may have sharp edges. In Fig. 3, the gas is discharged downwards with the heavy impurities and a disc 23 is positioned within the tube 10 to support the gas core. The tube is axially adjustable by means of a rod 25 to control the gas pressure. The disc may extend to the wall of the tube 10 and be provided with apertures for the upward passage of the light impurities or may be, as shown, spaced from the tube 10 by a gap 24 for such passage. Relative dimensions of component parts are given. The cyclone may be used for treating fibre suspensions in the manufacture of paper or cardboard.
Patent GB-1349877-A (GB)
Title: One step advancement of liquid epoxy resins
IPC: C08G59/40
Filed: 1971-07-23
Abstract: 1349877 Epoxy resin impregnated laminates CIBA-GEIGY AG 23 July 1971 [23 July 1970] 34741/71 Heading B5N [Also in Division C3] Laminates are prepared from glass cloth impregnated with a composition comprising a solvent, a liquid epoxy resin, a polyhydroxyl material capable of reacting with epoxy groups at elevated temperature and as hardener, guanidine or a derivative thereof. In an example glass cloth was impregnated with a mixture of a diglycidyl ether of bisphenol A, bisphenol A, dicyandiamide and benzyldimethylamine (catalyst) in a solvent mixture of 2- methoxyethanol, acetone, deionized water and n-butanol. After drying and B-staging at 325 F. a nine-ply laminate having a copper facing was prepared by heating at 350 C. for ¢ hour at 500 p.s.i.
Patent GB-1362704-A (GB)
Title: Electrolytic purification process and apparatus
IPC: C02F1/461
Filed: 1971-07-23
Abstract: 1362704 Electrolytic purification C H ROY 23 July 1971 34784/71 Heading C7B An electrolytic cell for the removal of dissolved salts from aqueous solutions comprises two electrodes, e.g. a graphite anode 25 in the centre of a stainless steel cathode cylinder 23 insulated by plastic 22 from a metal tank 20, separated by at least 1 inch with particulate carbon packing 28 having a particle size of at least 1 mm by lmm. The electrolyzed solution with solid electrolysis products, e.g. oxides, hydroxides or sulphides, is removed e.g. through a plastic screen 29 supporting the packing, e.g. comprising pellets or pills of activated carbon, and conduit 31 at the cell bottom 21, and the solid products are separated from the solution e.g. in cone filter 34; purified water may pass via conduit 35 into a second similar purification cell. The invention is applicable to purifying or demineralizing sea or brackish water, leach water from mines, urine or sewage, and metal-containing rinses from electro-plating baths, e.g. Cd, Au or Zn cyanide, Cu pyrophosphate, Ni, Sn, Pb and hexavalent Cr baths, the latter may use A.C.
Patent GB-1046767-A (GB)
Title: Interdigitated dynamo-electric machines
Inventor: WEST JOHN GODFREY WILSON
IPC: H02K1/24
Filed: 1962-09-12
Abstract: 1,046,767. Making dynamo-electric machines. JOSEPH LUCAS (INDUSTRIES) Ltd. Aug. 28, 1963 [Sept. 12, 1962], No. 34798/62. Heading B3A. [Also in Division H2] Rotor laminations 7, 8 are punched out of the stator laminations 9 and have tangential projections which are bent in an axial direction to form poles 11 (Fig. 2, not shown). Each pole may be formed of two projections bent towards each other (Fig. 4, not shown). The outermost lamination of each stack may be bent in the opposite direction to form a fan blade 12 (Fig. 1, not shown).
Patent GB-318438-A (GB)
Title: Improvements relating to inverted surface grinding or abrading machines
IPC: B24B7/08
Filed: 1928-11-27
Abstract: 318,438. Oldfield, T. Nov. 27, 1928. Flat extended surfaces, surfacing ; guides and rests ; spindle mountings ; wheels.-An inverted surface grinding-machine consists of a frame 5 having a work-table portion 3 with a ring plate 4 secured thereto, a cup grinding-wheel 1, and a centre work-table 2, which is adjustable so as to lie in the plane of the operative surface of the wheel, in order that truly plane work may be produced. The frame 5 carries a centre pillar 6 having keyed thereon a bush carrying a pulley 8 for driving the wheel 1, and on the upper end of the pillar is mounted a sleeve 16 forming part of the table 2. The table 2 is adjusted vertically by a screw 11 screwing in the pillar 6 and having a flange 12 supporting the table, which is locked by a nut 17. The wheel 1 is adjusted vertically by an inclined shaft 19 carrying an index-wheel 18 situated outside the machine frame, and also carrying a gear wheel 21 gearing with a wheel 22, the hub of which is screwed to engage a thread on the bush. A work guide 26 is provided.
Patent GB-173523-A (GB)
Title: Improvements in cylinder weighing scales
IPC: G01G1/00
Filed: 1921-12-29
Abstract: 173,523. Toledo Scale Co., (Assignees of Hapgood, C. H.). Dec. 29, 1920, [Convention date]. Compound - lever apparatus; computing- apparatus; pendulumweight apparatus. - Relates to a weighing- scale of the kind whereiu platform levers are connected by flexible means to load-balancing pendulums, and consists in supporting the platform upon pairs of posts each pair being rigidly carried by a cross-bar and each cross-bar being slung by links from a spider having downward extensions resting on the knife-edges of the platform levers. As shown in Fig. 1, a bar 2 extends across the front of the casing and is fitted at the ends with adjustable feet 5 and supports the fulcrums 10 of the large platform lever 12. The platform spider 17 is supported on the platform levers, and the platform 33 is slung from the spider by means of links 27, a frame 28 (comprised of the above-mentioned cross-bars connected by rods) and adjustable posts 31. The knife-edges of the platform levers are prevented from leaving their bearings by means of guard strips or split pins. The pull of the platform levers is transmitted by a draw rod 58, crosshead 57, and flexible bands 56 to a pair of overlapping power sectors 44 adjustably connected to pendulum levers 40. The power sectors and the pendulum levers are supported by flexible bands 39 passing over fulcrum sectors 51 rolling upon guides 38. The capacity of the scale may be changed by employing heavier or lighter pendulum weights 50 the zero balance of the scale being maintained by placing lighter or heavier sleeves around the shafts 42 of the pendulums. Guards 59 near the ends of the shafts 42 prevent incorrect displacement of the pendulums. The computing drum 75 is actuated from the platform lever 12 through a' spring member 86, Fig. 19, and a rack bar 87. The connection between the lever 12 and the spring member 86 is effected by a plate 80 with upwardly and downwardly directed knife-edges. The spindle 76 of the computing drum has trunnions at the ends, and has a driving pinion 78 mounted on a central enlargement of the spindle formed by shrinking a sleeve thereon. This arrangement of the spindle permits of economical machining of the necessary parts. The computing drum is illuminated at each side by electric lamps mounted in pairs in sockets upon removable caps 101. Resilient contacts extending from the sockets engage contacts on the hood 74 and the circuit is completed through a flexible contact strip 107 except in the zero position of the scale when the strip 107 is maintained in the open position by the draw rod 58. The electric current is supplied through a plug 111 'in the hood or through a plug 112 in the bar 2.
Patent GB-846325-A (GB)
Title: Improvements relating to carburetter and air cleaner installations in motor vehicles
Inventor: GRIFFIN CHARLES ARTHUR
IPC: F02M35/16
Filed: 1957-11-09
Abstract: 846,325. Mounting carburetters and air cleaners. MORRIS MOTORS Ltd. Dec. 22, 1958 [Nov. 9, 1957], No. 35003/57. Classes 7(2) and 7(3). [Also in Group XXXI] In a motor vehicle a carburetter and an associated air cleaner are mounted on the body structure of the vehicle and the carburetter outlet is connected to the inlet manifold of the engine by means of a flexible duct. As shown in Fig. 1 an air cleaner 1 having a rectangular casing 2 is mounted on a valance 3. Most of the casing 2 is accommodated in the space available beneath the front wheel arch 4. The main part of the casing may be formed integrally with the valance panel. The air filter is a resin impregnated pleated paper unit 8. The carburetter is mounted on the air cleaner. A corrugated hose 14 of synthetic rubber is employed between the carburetter and the engine. Fig. 2 exemplifies one method of applying the invention to a vehicle having a transverse rear engine. The air cleaner has its casing 19 mounted on the cover 20 of the engine compartment. In Fig. 3 the air intake is constituted by a duct 27 which is arranged to take air from the body interior 28 of the vehicle.
Patent GB-448343-A (GB)
Title: Improvements in and relating to the operation of flaps on aircraft
IPC: B64C13/00
Filed: 1934-12-06
Abstract: 448,343. Aircraft controls. AUTOMOTIVE PRODUCTS CO., Ltd., and BROWN, F. V., Brock House, Langham Street, London. Dec. 6, 1934, No. 35085. [Class 4] Flap-operating means for aircraft comprises a pump operating a jack connected to the flap, the pipe-line from the pump to the jack including a relief valve adapted co open when the flap is subjected to a predetermined pressure and allow the flap to approach its inoperative position. As shown a pump 3, which may be similar to that described in Specification 428,252, [Group XXVIII], is connected by pipe-lines to an extensible jack 9 the piston rod 18 of which is connected to a flap. The cover 2 or the pump houses a relief valve 10 the load on which is adjusted by a spring 12. Pressure in the pipeline 6 collapses the jack and opens the flap and when excess pressure is applied to the flap the piston rod 18 is withdrawn from the cylinder, the liquid under the piston 17 being byepassed through the valve 10 back to the pump whereby the flap closes automatically. With a double acting pump the flap may be returned to its operative position by admitting pressure fluid to the other side of the piston.
Patent GB-790110-A (GB)
Title: Improvements in record card reader devices
Filed: 1956-11-16
Abstract: 790,110. Statistical apparatus. GENERAL ELECTRIC CO. Nov. 16, 1956 [Nov. 16, 1955], No. 35119/56. Class 106 (1). [Also in Group XXII] Card sensing apparatus.-A sensing mechanism for perforated record cards comprises a stationary support 1, Fig. 1, a carriage 4 for the card mounted on the support for movement to and from an operative position, a number of elongated sensing fingers 12 mounted on the support for movement between a rest position and an operative position, each finger being adapted during movement of the carriage towards its operative position to slide over the surface of the card and to enter a perforation in the card located in its path, the finger being thereafter moved with the carriage to a position corresponding to the index position of the perforation sensed. The carriage 4 is mounted on a pair of rods 5 which slide in blocks 6, a handle 7 being provided for moving it towards and away from the casing 2. The card is retained in position on the carriage by side guides 9 and the surface of the carriage beneath the card has a series of parallel grooves 10 corresponding to rows of index positions on the card. The sensing fingers 12 have feeler portions 13 at the outer end which are adapted to pass through the card perforations and engage in the grooves 10 to cause displacement of the fingers during subsequent movement of the carriage. In the rest position of the carriage the fingers are all supported on a ledge 11 above the level of the card surface. A sensing finger is provided for each card column and each is in the form of a thin metal strip connected at the rear end to an insulated plate 16 having a contact 17 which co-operates with a series of contact strips 23. These contact strips are in staggered arrangement, alternate groups being in the A or B positions and the corresponding plates 16 being attached to their sensing fingers in positions to co-operate with them. Individual connections are made to the contacts 17 and to the contact strips 23 but these circuits are not energized until the carriage has reached the end of its travel; a main switch 32 then being closed by engagement with a push-rod 33 on the carriage. The sensing fingers are returned to their initial rest positions as the carriage is withdrawn, by engagement with the ledge 11. Where it is desired to withdraw the card but leave the sensing fingers in the set position, the ledge portion is made detachable from the carriage, so that it remains in position on rods 5 when the carriage is drawn out. Handles are provided for withdrawing the ledge portion to reset the fingers. Instead of being operated manually the carriage may be operated mechanically, e.g. pneumatically. The sensing means may be applied to control machine tools or to control visual indicating apparatus, for example an array of electric lamps.
Patent GB-935764-A (GB)
Title: Time fuze for projectiles
IPC: F42C15/24
Filed: 1960-10-13
Abstract: 935,764. Projectile fuzes. GEB. JUNGHAMS A.G. Oct. 13, 1960 [Oct. 16, 1959], No. 35158/60 Class 9(1). A clockwork time fuze for rotatable or non- rotatable projectiles having low acceleration comprises plates 50-58, housing a spring drum 59, rotatable on a hollow shaft 60, and provided with a collar 59b. Rotatably set in the plate 50 is a fuze-setting ring 74 to which are attached a double-armed timing lever 72 (see Fig. 3) and a striker pin release lever 76, the fuze-setting ring 74 being permanently coupled for rotation to a rotatable fuze nose (not shown). The upper portion of the striker pin 15 has attached to its lower end a striker bush 18 which rests on a supporting-block 76b attached to the release lever 76. A spring 19 under tension causes the striker bush 18 to bear downwardly on the block 76b, thereby imparting a horizontal outwardly directed force to the release lever 76. As shown in Fig. 3, hook engagement 72a-76a between the levers prevents motion of either lever since a depending lug 72b is caused to press against the inner side of the collar 59b. However, when the levers are moved into positions such as shown in Fig. 4 by rotation of the fuze setting ring 74 and the clockwork mechanism is released the collar 59b rotates anti-clockwise, exposing a slot 59c, hitherto shielded by a seating surface 50a when the mechanism is in the zero position, into which the lug 72b duly slides thereby causing unhooking of the levers. The striker bush 18 is now free to move downwardly to strike the thickened portion 15a of the striker pin which forces the pointed end 15b of the striker pin into a primer (not shown). A toothed ring 59a on the spring drum 59 is connected by a gear chain 63-67 to a balance regulator mechanism 68. Safety devices (described in Specification 935,765) comprise a pin mounted on an inertia block to prevent movement of the regulator 68 and a plate to intercept accidental movement of the striker pin. A conversion of the fuze to act as a self-destroying fuze is described.
Patent GB-643532-A (GB)
Title: Railway sleeper of prestressed concrete
IPC: E01B3/34
Filed: 1947-12-31
Abstract: 643,532. Reinforced concrete sleepers. ROS, M. R. Dec. 31, 1947, No. 35229. Convention date, Jan. 22, 1946. [Class 104 (ii)] A railway sleeper of pre-stressed reinforced concrete, with a sleeper base that is narrower at the middle portion than at the ends, is provided with a rectilinear course of prestressing reinforcement, and a distribution of the prestressing is obtained by variation of the crosssection forms along the length of the sleeper, such that below the rail support 3, Fig. 2, the compression stresses have a minimum value in the upper part of the sleeper and a maximum value in the lower part, and midway between the ends there is compressive prestressing in the upper part. Fig. 2 is a plan of one half of the sleeper, and Fig. 3 a half of the section across the recessed rail-supporting section 3, with prestressed steel wire reinforcements 5 disposed above, below, and on both sides of a cavity 2 of circular cross-section extending throughout the length of the sleeper. The substantially rectangular cross-section at the rail support has an upper portion 4 which is relatively wider and higher than the lower portion. At the ends of the sleeper the crosssection is trapezoidal as at A<1>, Fig. 4, this Figure also showing the cross-section C<1> intermediate the ends.
Patent GB-841625-A (GB)
Title: Improvements in and relating to cathode ray tube apparatus
IPC: H04N3/237
Filed: 1956-11-19
Abstract: 841,625. Sawtooth generating circuits. PHILCO CORPORATION. Nov. 19, 1956 [Nov. 17, 1955], No. 35275/56. Class 40(6). In a sawtooth current generator in which the driver stage is matched to the deflecting coils via an output transformer an impedance is associated with the transformer which reduces or eliminates the transfer of ringing currents from the transformer to the deflector coils. The impedance has series and shunt elements which are respectively effective during the times of conduction and non-conduction of the driver stage tube. Fig. 3 shows a sawtooth current generator in which the driver stage 10 is matched to the horizontal deflector coils 12 via an auto transformer 11, damper diode 14 producing linearizing and HT boost. The deflector coils 12 are connected to point 18 of the transformer which is the optimum point for maximum power transfer. The transfer of ringing currents generated in the transformer 11 is prevented by a balancing impedance comprising network 20, 21, 22 which renders point 18 a null point for the transfer of ringing current. This network constitutes one arm of a bridge Fig. 2, not shown in which the deflecting coils 12 are connected across the diagonal. When the driver tube 10 is non- conducting impedance 20 is effective to balance the circuit and during the conduction of driver tube 10 diode 22 conducts and resistor 21 constitutes the balancing impedance. Diodes 22 also provides a low impedance path between transformer 11 and earth and therefore improves the efficiency of the transformer in supplying in conjunction with capacitor 17 high D.C. voltage for the second anode of the cathode ray tube 13.
Patent GB-1325961-A (GB)
Title: Feroelectric device and process of manufacturing same
IPC: H01G7/02
Filed: 1971-07-28
Abstract: 1325961 Deposition of ferro-electric potassium nitrate TECHNOVATION Inc 28 July 1971 [28 Sept 1970] 35376/71 Heading C7F [Also in Divisions G3 H1 and H3] A ferro-electric storage device comprises a layer of deposited Phase III ferro-electric potassium nitrate less than 110Á to be stable at room temperature and pressure. An array of typical devices is made as follows: A glass slide is attached to an aluminium heater block mounted on a linearly movable carriage in a vacuum chamber, and further cleaned by ion bombardment in dry nitrogen. It is next raised to 100‹C. while the vacuum is pumped down and silver evaporated from a tantalum boat through a mask to form five electrode stripes. After moving it into registry with a second mask reagent grade potassium nitrate is heated slowly to its melting point to allow escape of moisture and gases and then evaporated. On cooling in cool dry nitrogen the resulting layers (e.g. 1Á thick) of nitrate overlying the stripes change to the Phase III form. After re-evacuating the chamber aluminium is evaporated from a tungsten basket through a third mask to provide electrodes transverse to the silver stripes, although silver, copper, lead or lead-tin alloy may be used in place of aluminium. Details of the processing steps, apparatus and testing procedures are given. The potassium nitrate may be evaporated by electron beam heating or by RF sputtering.
Patent GB-853035-A (GB)
Title: Improvements in or relating to convection heating systems
IPC: F24D19/00
Filed: 1957-11-14
Abstract: 853,035. Heating air. WEATHERFOIL HEATING SYSTEMS Ltd., and FOWLER, L. J. Feb. 13, 1959 [Nov. 14, 1957], No. 35560/57. Class 64(3) [Also in Group XXVIII] A convection heating system comprises a gilled tube 10 carrying a heating fluid and located in an airway formed between the backs of benches 82, 64 or like fittings and the wall 12 of a room, an opening being formed in the airway below the tube adapted to co-operate with a suitable vacuum box of a vacuum cleaner (see Group XXVIII), access to the opening being provided through or under the benches or like fittings. In the form shown the gilled tube 10 is supported in a box like frame member 22 and the said opening is defined by the end walls 24, of the member 22 and by the ower edges of front or rear walls 44, 46 which may be provided with flanges 48, 52. A removable grill 82 is arranged at the upper end of the airway, and a scraping tool (see Group XXVIII) may be inserted to dislodge dust &c., from the gilled tube.
Patent GB-395250-A (GB)
Title: Improvements in or relating to vacuum cleaners
IPC: A47L5/36
Filed: 1932-12-15
Abstract: 395,250. Vacuum cleaners. ELECTROLUX, Ltd., 153, Regent Street, London.- (Assignees of Inventia Patent- Verwertungs-Ges.; 10, Herrenacker, Schaffhausen, Switzerland.) Dec. 15, 1932, No. 35570. Convention date, Dec. 24, 1931. [Class 8 (i).] The air passing horizontally outwards from a vacuum cleaner is diverted upwards by inclining the plane of the outlet 14. Additional outlets may be provided. A screen of rods 25 may be provided to prevent contacts with the inner parts. The part containing the outlet may be rotatable.