baber/WOPTO huggingface dataset:
Patent GB-218630-A (GB)
Title: Improvements in electrode compositions for electron discharge devices
IPC: H01J9/04
Filed: 1924-05-24
Abstract: 218,630. British-Thomson Houston Co., Ltd., (Assignees of Dushman, S.). July 2, 1923, [Convention date]. Drawings to Specification. Vacuum tubes.-A process of treating an electrode consisting of a refractory metal containing a small proportion of an oxide of cerium, yttrium, uranium or zirconium consists in heating the electrode in a non-oxidizing environment to a temperature of 2000-2500 C., and forming the electrode at a temperature of 1200-1650 C. One to two per cent by weight of the oxide or of a compound yielding an oxide during the subsequent treatment is mixed with finely-divided tungsten, and the filament formed in the usual way either by mechanical working or by squirting the finelydivided material mixed with a binder. The oxide may be added to finely-divided tungsten before it is pressed into slugs preparatory to sintering; or 5 parts by weight of the oxide may be mixed with 95 parts of tungsten and sufficient carbonaceous binder to form a mass capable of being squirted. Molvbdenum or nickel mav be used instead of tungsten. A reducing agent such as carbon may be incorporated with the oxide, for instance, by heating the filament in the vapour of anthracene or naphthalene, the carbon content being preferably one-half per cent or less than 1 per cent. The filament is mounted in a bulb which is evacuated and then freed from water vapour by introducing a material such as magnesium or calcium as a film on the wall. A filament containing ceria is activated by heating at 2500 C. for about a minute so as to reduce a small part of the ceria to metallic cerium which is then diffused to the surface by heating at 1200 to 1400 for a few minutes. The filament is operated at a bright orange heat and below 1200 C. Details are given of the temperatures necessary for filaments containing yttria, zirconia or uranium oxide.
Patent GB-564964-A (GB)
Title: Improvements in or relating to lubrication systems
IPC: F16N7/32
Filed: 1943-08-09
Abstract: 564,964. Lubricating ; bearings. ONSRUD MACHINE WORKS, Inc. Aug. 9, 1943, No. 12836. Convention date, Dec. 16, 1942. [Classes 12 (i) and 12 (iii)] A centrifugal force-feed lubricating system has a duct 13 with an axial bore 14 closed at one end by a porous plug 19 and having at its other end a transverse porous plug 18 adjacent a smaller axial bore 16. The vertical spindle 1 of a router has ball bearings 4, 5 and an oil reservoir 3 containing two ducts 13, each feeding one bearing. Each duct contains a wick 15 bent so as to cover the bore 16 and is supplied from an oil pocket 23 having a passage 25 to the reservoir 3. Oil also passes through plug 18 to the bore 16, whence it is discharged into a groove 29 and a distribution washer 27 with down-turned flange to direct the oil to the bearings.
Patent GB-1256099-A (GB)
Title: Improved modulating valve for a vehicle braking skid control system
IPC: B60T8/42
Filed: 1969-03-11
Abstract: 1,256,099. Anti-skid control systems. KELSEY-HAYES CO. 11 March, 1969 [21 March, 1968], No. 12877/69. Heading F2F. The invention relates to a vacuum powered anti-skid control valve arrangement of the kind which shuts off hydraulic pressure to the rear brakes and increases the brake pipe volume to reduce brake pressure. As shown deceleration detector 26 may detect difference in signals from A.C. tachogenerators 28, and energize magnet valve 48 to let in atmosphere to side 50 of diaphragm 42 and shutoff conduit 56 connecting to the back of the diaphragm and vacuum via pipe 52. As the diaphragm moves left, hydraulic brake pressure causes piston 46 to follow, first allowing check valve 76 to shut and then increasing volume of the brake circuit. When the solenoid is de-energized (as the wheel speed increases) diaphragm 42 and piston 46 are returned by spring 128. The end of the return stroke is slowed by throttle valve 165, carried by the diaphragm, engaging a fixed plate to close the opening 164 and force air through bleed hole 170, and this together with bleed valve 100 incorporated in check valve 76, allows a slow increase in brake pressure.
Patent GB-345138-A (GB)
Title: Improved hinge attachment means for the struts or supports of photograph, picture and like frames
IPC: A47G1/14
Filed: 1930-04-26
Abstract: 345,138. Struts for picture frames &c. CUTLER, A., Grosvenor Works, Moseley Street, Birmingham. April 26, 1930, No. 12890. [Class 52 (v).] A strut is detachably hinged to the back of a picture frame by inserting a hinged tongue, on one part, into a socket secured to the other part, the tongue being kinked to engage under the lower end or with slotted sides of the socket. In the construction shown a hinged wire or strip metal tongue b4 is kinked at its lower end b<5> to under the lower edge of a socket a. In a modification the tongue consisting of a loop of wire is bulged outwards at each side to engage slots in the sides of the socket.
Patent GB-903470-A (GB)
Title: A process and apparatus for the treatment of fibres and fabrics in liquid medium
Inventor: BOLD JOHN
IPC: D06B3/20
Filed: 1958-04-23
Abstract: Fibres or fabrics passed between and in contact with a pair of juxtaposed belt surfaces, at least one of which has a roughened surface provided by blunt flexible and resilient protuberances, which are partly immersed in a liquid medium, move in the same direction and at least one of the belts is given a separate additional oscillatory movement.  Apparatus for carrying out such treatment of fibres or fabrics comprises a pair of endless belts 1 at least one of which has a roughened surface, i.e. blunt flexible and resilient protuberances 2 (Fig. 3), driving <PICT:0903470/IV (b)/1> <PICT:0903470/IV (b)/2> <PICT:0903470/IV (b)/3> means, e.g. driven rollers 3 and means for imparting to at least one of the belts 1 an oscillatory movement, e.g. eccentric cams or an ultrasonic transducer in the form of a roller or bar 15 (Fig. 7).  If desired successive treatments in two or more assemblies of such apparatus in series may be carried out, utility of conveyer belts 16, 18 and squeeze rolls 17 being made (see Fig. 4) between juxtaposed baths of liquid medium. Endless belts 1 may pass over and under respectively series of alternating idler rolls 5, 7 which cause the fibres or fabrics to follow a sinusoidal path.
Patent GB-260878-A (GB)
Title: Improvements in, and relating to, hollow drills
IPC: B23B51/06
Filed: 1926-05-20
Abstract: 260,878. Rayner, G. H. T., and Rayner, P. May 20, 1926. Drills. - Hollow spiral drills are made by twisting a hollow-section bar having at least three angles in a common circle embracing the maximum diameter of the bar, thus forming at least three flutes for the passage of debris and three points of contact with the walls of the hole being drilled. The bar may be of square section as shown in the Figure or may be triangular, pentagonal &c. or of star-section. The shank is formed by upsetting one end of the bar to the section required and the other end is pointed in the usual manner. The section may have straight sides which become concave after twisting, or the sides may be concave before twisting.
Patent GB-289822-A (GB)
Title: Improvements in and relating to advertising devices
IPC: G09F13/00
Filed: 1928-05-02
Abstract: 289,822. Ziehl, E. May 2, 1927, [Convention date]. Elements moving always in one plane, rotating.- Advertising matter on a stationary disc s is seen intermittently through two coaxial discs d, c rotating at, different speeds by a coupling consisting of rubber discs k fixed on the driving shaft of the disc d and pressed by a nut m adjustably against the disc c. The disc d is opaque and provided with one or more openings, and the disc c is of glass, celluloid, or other transparent or translucent material divided into sectors, some of which ane coloured and others left transparent or provided with apertures. The discs d, c, s may be removable for substitution. and more than one of them may be employed simultaneously. The discs d, c may be rotated by electric or clockwork motor or by hand. Coloured or ordinary lamps g may be provided to illuminate the sign either by transmitted or by reflected light. The sign may be adapted for suspensior. and have two faces, or may be combined with a fan by providing vanes b, either separate or mounted on the disc d. The fan may oscillate or rotate about an axis parallel to the discs to display the advertisement in different directions.
Patent GB-585046-A (GB)
Title: Ignition apparatus for internal combustion engines
IPC: F02P7/02
Filed: 1944-07-06
Abstract: 585,046. Magnetos. BENDIX AVIATION CORPORATION. July 6, 1944, No. 12963. Convention date, May 12, 1943. [Class 35] [Also in Group XXVII] In a magneto the distributer and circuit-breaker cam are on a lay-shaft supported in a cover member forming a readily removable unit with a driving connection which becomes operative with the main shaft when the cover member is replaced. In the form shown, the cover 11 carries in bearings 31, 32 a hollow shaft 33 carrying gearwheel 34 loosely coupled thereto, distributer rotor 40, 43 and a cam 61 for two circuit-breakers 62, 74 also carried in the cover with the condenser 64, distributer stator 41 (with contacts 50) and interconnecting leads; the arrangement being such that when the cover is placed on the main casing 10, the gear 34 engages, the pinion 24 on magnet shaft 20. The magnet 17 has four poles, of which two face a keeper 28 cast in the main casing, while the other two co-operate with the two polepieces 25 of the stator. The secondary may be omitted from the armature winding, in which case a transformer 60, Fig. 5, may be inserted between each fixed distributer contact 50 and the sparking plug 57. Instead of the magnet, the armature may be the rotary member. During starting, current from a battery 73 rendered pulsating by the buzzer contacts 80 operated by coil 79, is fed to the distributer through the second cam-operated circuit-breaker 74. The battery may be disconnected automatically after starting and a switch 69 is provided to render the magneto inoperative when desired. To provide timing adjustment gear 34 and shaft 33 have ratchet teeth for coupling and the stator is angularly adjustable.
Patent GB-390961-A (GB)
Title: Improvements in direct current motor control
IPC: B60L15/04
Filed: 1932-05-05
Abstract: 390,961. Field control of D.C. motors. FORGES ET ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE JEUMONT, 75, Boulevard Haussmann, Paris. May 5, 1932, No. 12992. Convention date, June 1, 1931. Addition to 386,009. Drawings to Specification. [Class 38 (iii).] In the system described in the parent Specification, the exciter supplying the motor field is driven by the traction motor, and not at constant speed. In order to compensate for the variable speed of the exciter its shunt field circuit is regulated by resistance adjusted by a centrifugal governor, or by relays traversed by the current supplied to its independent field winding. Alternatively a series-wound machine coupled to the exciter is connected in the shunt field circuit to act as a dynamic resistance. Before the main exciter becomes effective the independent field of the traction motor is fed from the supply either directly, or in series with the motor.
Patent GB-973747-A (GB)
Title: A large area connection between rigid and flexible elements and a method of making such a connection
IPC: B23K20/02
Filed: 1961-04-11
Abstract: A large area connection between a rigid element and a flexible metal structure comprises a plurality of thermo-compression bonds of small area contact distributed between the element and structure. The thermo-compression bonds are produced under high pressure but at a temperature below the melting point of any of the materials being joined or of a eutectic formed between the surfaces being joined. In an embodiment a cleaned nickel wire screen 14 of 200 mesh is arranged between a cleaned rigid element 10 of pure or P- or N-type silicon and a cleaned rigid molybdenum element 12, the assembly being placed on an electric heating element 16 and between alumina members 18. This assembly is clamped between members 20, 22 of a clamp 24 and positioned in a bell jar 30. In operation current is supplied to the element 16 to heat the members 10, 12, 14 to 600 DEG  C., inert or reducing gas, e.g. hydrogen is admitted <PICT:0973747/C1/1> to the jar and the clamp tightened. Bonds are produced between the plates 10, 12 and screen 14 and the assembly is cooled under pressure in the jar. The member 12 may also be of tungsten, tantalum, copper, iron or platinum and the screen 14 of copper, iron, platinum, gold or silver. The bonds may be effected at 400-1000 DEG  C. Bonds may be formed between a wire screen and diamond, crystalline or fused quartz or high melting point glass and plates of glass like materials may be connected together.
Patent GB-922493-A (GB)
Title: Improvements in or relating to freezedrying of foodstuffs
Inventor: ROWE TERENCE WALTER GEORGE
IPC: A23L3/44
Filed: 1960-04-12
Abstract: 922,493. Freeze-drying food. EDWARDS HIGH VACUUM Ltd. April 6, 1961 [April 12, 1960], No. 13090/60. Class 49. [Also in Group XIII] Food material is freeze-dried in a Vacuum chamber by being sandwiched between shelves in the form of a stack of heated plates to which controllable pressure is applied by pneumatically or hydraulically operated flexible bags, e.g. of nylon, rubber, canvas or by metal bellows containing fluid. The plates are preferably thin, electrically heated, metal or resin (e.g. epoxy), sheets of low thermal mass, siliconetreated to prevent adhesion of food material, and, before insertion between the plates, the foodstuff may be pre-frozen, e.g. by vacuum evaporation, or, alternatively, the entire stack of food and plates may be refrigerated e.g. in a blast tunnel cooler. As shown, Fig. 1, food 2 is sandwiched between plates 3, which have heating elements 10 and which are clamped by rods 4, and the entire stack is enclosed in a vacuum chamber 1, pressure being applied to the plates by pneumatic bags 6 into which air is pumped or merely allowed to flow in. Expanded metal sheets 7, Fig. 2, are preferably interposed between food and heating plate on one or both sides of the food to provide points 8 of contact therewith and allow escape of vapour therefrom. Undue pressure at the bottom of the stack is relieved either by interleaved support plates 5 or springs (not shown) of graded strength, or by standing the shelf stack on edge in the vacuum chamber.
Patent GB-812013-A (GB)
Title: Improvements in or relating to the back filling of carpets or like operations
Inventor: JONES ERIC HARDING
IPC: D06B23/28
Filed: 1956-04-30
Abstract: 812,013. Coating webs. BRITISH COTTON INDUSTRY RESEARCH ASSOCIATION. July 29, 1957 [April 30, 1956], No. 13131/56. Class 140. A prescribed amount per unit length of a substance (e.g. starch) is applied to a continuously moving sheet of material (e.g. of carpet) by supplying said substance to a reservoir at a rate predetermined by the speed of movement of the sheet material and the prescribed weight of substance to be applied thereto, and applying it in liquid form to the sheet material by a furnishing roller, any change in the amount of liquid taken up from the reservoir resulting from a deviation of the rate of application from the prescribed rate being used to alter the relationship between the moving sheet material and the furnishing roller to correct said deviation. The relationship which is altered may be the relative linear speed of the furnishing roller and the sheet material or the arc of contact between them. As shown, coating liquid is fed from a tank 29, Fig. 1, to a reservoir 11 through a circulating pump 30a and metering pump 15 driven through two variable-speed gears 17, 18 from the main drive 16 for progressing the carpet. The gears 17 and 18 are adjustable for the width of the carpet and the weight per unit length of substance to be applied. Any coating liquid not metered to the reservoir 11 is returned by pipe 31 to the tank 29. Reservoir 11 contains a furnishing roller 12 and stands on a platform 19 which is hinged at one end and is supported at the other by a spring 20. An inextensible rope 21 passes downwardly from the end of platform 19 over a torque amplifier 22 and is connected to a weighted chain 23 engaging a chain wheel 24 on a shaft forming part of a variable speed drive 26 for the roller 12. Any change in take-up of coating material, resulting for example from a change of temperature and consequential change of viscosity thus produces movement of the platform 19 and adjustment of the speed of the drive to the furnishing roller 12. In an alternative arrangement liquid from a reservoir such as 11, flows through an overflow pipe to a small spring suspended vessel and thence through a flexible tube and circulating pump back to the reservoir, movement of the vessel being used to adjust the drive to the furnishing roller as above described. In another arrangement a fixed overflow vessel contains a float movement of which is used to effect the adjustment.
Patent GB-261624-A (GB)
Title: Improvements in squares for marking out the string boards of staircases
IPC: E04F21/26
Filed: 1926-05-25
Abstract: 261,624. Weisenstein, K. May 25, 1926. Squares.-An instrument for marking out the treads and risers on the string-boards of staircases comprises a square h adjustable in relation to a bar or straight edge f and adapted to be secured thereto by thumbscrews i. Mounted on the bar f so as to be adjustable parallel thereto is an arm e which can be secured by thumbscrews g; this arm carries a slidable scale n. The arm f acts as an abutment against the edge of the string-board and the square is adjusted so that the distances along its edges between its apex and the arm e are equal to the lengths of tread and riser required.
Patent GB-1517501-A (GB)
Title: Method of supporting an article supports therefor and apparatus for carrying out the method
IPC: F16M7/00
Filed: 1975-06-25
Abstract: 1517501 Mounting internal combustion engines J B MEIKLE 25 June 1975 [26 March 1974 13 Aug 1974] 13249/74 and 35585/74 Heading F1M [Also in Division F2] An engine, in particular a marine diesel engine 10, is supported on a surface, in particular the engine room deck 14 of a ship, by raising it to the desired level by a number of jacks (not shown) and then positioning a number of cast iron or steel blocks 16 between the engine bed-plate 12 and the deck 14 while the engine 10 is maintained in its raised position, each block being supported on steel wedges (not shown) to form a free space of between 0À1 and 10 mm between the lower surface of each block 16 and the deck 14. A thermosetting ream 20, e.g. epoxy resin, is supplied under pressure from an apparatus 22 through a flexible pipe 52 and a bore 18 in each block 16 to form a layer 24 of the resin in the free space beneath the block, after which the nozzle 54 of the pipe 52 is removed from the bore 18 and is replaced by a cone-shaped bung 64. The layers 24 of the epoxy resin 20 are then allowed to cure and harden, after which the steel wedges and the jacks (not shown) are removed. In an alternative embodiment Figs. 6 and 7 (not shown), the resin is injected into a free space between the upper surface of the block 16 and the engine bed-plate 12. The nozzle 54 at the end of the flexible pipe 51 may in either case by replaced by a hypodermic needle type of outlet and the resin injected directly into the free space.
Patent GB-1191255-A (GB)
Title: Improvements in or relating to Soil Cultivating Implements
IPC: A01B33/12
Filed: 1968-03-19
Abstract: 1,191,255. Agricultural implements. C. VAN DER LELY N.V. 19 March, 1968 [30 March, 1967], No. 13331/68. Heading A1B. The subject matter of this specification is identical with that described in the Specification 1,189,047, but the claims are concerned with a soil cultivating implement of the kind comprising a frame 1 movable over the ground and at least two tiered soil cultivating members 2 arranged to be driven mechanically during use of the implement in which each soil cultivating member 2 is provided with an element 16, 36 or 67 disposed between the tips of the tines and the point of attachment of the tines to the member, this element being displaceable with respect to the tines in a vertical direction.
Patent GB-629361-A (GB)
Title: Improved lifter jack for motor vehicles and the like
IPC: B66F3/08
Filed: 1947-05-19
Abstract: 629,361. Lifting jacks. GENERAL MOTORS CORPORATION. May 19, 1947, No. 13371. Convention date, June 10, 1946. [Class 78 (iii)] A screw 40, Fig. 1, and a nut 87, having antifriction balls 91 therebetween, are located within a column 17 which has a slot 19 through which projects both a radial pin 99, secured to the nut, and a load engaging hook 103 having a part spherical surface 101 which engages a similar surface on said nut and arcuate lugs 109, 113 which respectively engage the interior and exterior surfaces of the column. The column is secured in a cup 15 in the base by engagement of a spring 23, carried by the column, with a detent 151 on said cup which projects through the slot 19. An arm 53 and a handle 75, both of which may be folded to lie parallel 'with the column, are operatively connected with a cap 51, Fig. 5, which, together with a ratchet 49, is non-rotatably mounted on an extension of the screw 40 which also passes freely through an annular pawl 39, a ball race 33, 35, 31, a cap 25 and a spring clip 69, lugs 41 on said pawl 39 co-operating with notches 43 in the bearing cup 31 the partspherical lower surface of which nests in a similar surface formed in the cap 25. Rotation of the screw 40 is assisted by the bearing 33, 35, 31 until the hook 103 engages a load which, in tending to rotate the screw in a reverse direction, engages the ratchet 49 with shoulders 45 on the pawl 39 and so locks the cup 31 to the screw 40 and renders the ball race inoperative so providing sufficient friction between the cup 31 and cap 25, which now constitute the bearing, to prevent overhauling.
Patent GB-164602-A (GB)
Title: Improvements in and relating to power transmission devices for self-propelled vehicles
Filed: 1920-05-15
Abstract: 164,602. Skippins, F. T. May 15, 1920. Addition to 158,074. Controlling-apparatus, arrangements of hand, foot, and transmission gear in conjunction with.- A device for converting a left-hand to a right-hand control comprises a cover 2 for the transmission case in which the slow speed, reverse, and brake shafts, 3, 4, 5 are mounted, the cover being provided with bearing blocks for auxiliary shafts 15, 16, 17. The shafts 15, 16, 17 are provided with pedals 6, 7, 8 and with cranks 18, 19, 20 which are linked to cranks 10, 11, 12 on the transmission shafts. The links 21, 22, 23 may be adjustable and the cranks 10, 11, 12 may be formed by sawing off the normal left-hand control pedals. The hand brake is mounted on the right-hand side of the brake shaft and a bracket is provided for supporting the steering-column.
Patent GB-121101-A (GB)
Title: Improvements in the Manufacture of Lead Arsenate.
Inventor: LYTLE JOSEPH
IPC: C01G28/00
Filed: 1918-08-19
Abstract: 121,101. Lytle, J. Aug. 19, 1918 Lead arsenate is produced by thoroughly mixing, preferably by rubbing or grinding, lead carbonate or white lead with arsenic acid in the presence of water. A concentrated solution of arsenic acid may be used, and water may be added at the end of the reaction to produce a paste of the desired consistency.