baber/WOPTO huggingface dataset:
Patent GB-929717-A (GB)
Title: Improvements in fluid pressure operated valves
Inventor: LANSKY ZDENEK JOHN
IPC: F16K31/42
Filed: 1962-02-26
Abstract: 929,717. Valves. PARKER-HANNIFIN CORPORATION. Feb. 26, 1962, No. 7454/62. Class 135. A main valve 12, Fig. 1, controlling the supply and exhaust of fluid to a motor, is actuated by a pilot valve 14. In the embodiment shown, the main valve comprises two valves 26a, 26b having valve closures 28 connected to pistons 50. An inlet 21 and exhaust 22 communicate by chambers 48 and ports 46 with chambers 42 on one side of the valve members, while chambers 34 on the other side are connected to the two sides of the motor. The inlet 21 is also connected by passages 66, 100, 101, non-return valve 144 and passage 92 to a bore 105 the pilot valve 14. A passage 142 leads from downstream of the non-return valve 144 to an accumulator chamber 140 which maintains a supply of fluid pressure sufficient to actuate the main valve irrespective of a fall in pressure at the inlet. Passages 90, 88, 96 lead from the pilot valve to chambers 70 above the pistons 50 while passages 94, 98, 96 and 67 connect the pilot valve to exhaust 22. The pilot valve member 106 is actuated by an electromagnet 16 and is loaded by a spring 118. With the pilot valve in the position shown, the inlet 21 is connected via passage 66 to a chamber 40 of valve 26b and fluid flows to one side of the motor through port 38 and chamber 34, the fluid pressure acting on the valve member 28 of valve 26b to hold the valve in the position shown. Fluid pressure in chamber 42 of valve 26a acts on piston 50 of valve 26a to hold it in the position shown and the other side of the motor is connected to exhaust 22 to chamber 34 of valve 26a, port 38, chamber 40, passageway 67 and chamber 48. During this stage the fluid supply is charging the accumulator chamber 140 by passage 100 as described above, the non-return valve 144 being loaded by a very weak spring 148. When the solenoid 16 is energized, the pilot valve member 106 moves into a bore 110 to close communication between passages 90 and 94 and open passage 90 to passage 92 whereby fluid is fed to chambers 70 to move both valves 28 downwards to close ports 38 and open chambers 42 to chambers 34, thus reversing the connections to the motor. The pilot valve may be actuated manually by a push-rod through opening 132. A modified form of pilot valve is shown in Fig. 5 and comprises an armature 172 carrying valve closure portions 176, 178. The passage 100 from the fluid supply leads past a ball non-return valve 214 to an accumulator chamber 210. With the pilot valve in the position shown, chambers 70 are connected to exhaust by passages 86a, 166, grooves 192, passages 186, 168 to passage 96. When the solenoid is energized, valve member 176 seats and valve member 178 opens thereby connecting accumulator chamber 210 to chambers 70 by passages 188, 166 and 86a. A manually-actuated pilot valve member 200 may be provided which in the position shown, interconnects passages 86a and 168 as above through the solenoid valve and may be moved to the left to close this connection and open passage 86a to passage 213.
Patent GB-526128-A (GB)
Title: Improved machine for removing stalks from fruit
IPC: A23N15/02
Filed: 1939-03-08
Abstract: 526,128. Removing stalks from fruit. VIG, NOLO, G. March 8, 1939, No. 7564. Convention date, March 8, 1938. [Class 28 (ii)] In a machine for removing stalks from fruit &c. by means of pairs of oppositely-rotating rollers, a third roller of substantially the same diameter co-operates with one of the two oppositely-rotating rollers by means of a belt, and is so positioned as to allow the intermediate portion of the belt to engage the surface of the other roller and so assist in the removal of the stalk from the fruit. The machine comprises alternately arranged rollers a, b rotatable in opposite directions and inclined along their lengths, so that the fruit gravitates, from the feed side of the machine to the discharge side. The rollers a, b are connected by gearing f and are driven by a motor d through a belt e. The rollers a are associated with belts g which are tensioned by rollers c, the stalks being gripped between the rollers and the belts. A conveyer i receives the stalkless fruit and discharges it into a receptacle m. The stalks are received on a conveyer o and are discharged into a receptacle n. The conveyer i may be dispensed with, the fruit being discharged from the rollers a, b into a collecting box disposed along the ends of the rollers.
Patent GB-346932-A (GB)
Title: Improvements in or relating to automatic or semi-automatic telephone systems
IPC: H04M3/30
Filed: 1930-03-08
Abstract: 346,932. Automatic exchange systems. COVENTRY AUTOMATIC TELEPHONES, Ltd., MOSS, B. F. and HOCKNEY, T. R., of General Electric Co., Stoke, Coventry. March 8, 1930, No. 7603. [Class 40 (iv).] Test-final-selectors or similar switches, e.g. trunk offering final selectors are available for use either by a test clerk for normal service or by an automatic or semi-automatic routiner. As shown, connections 1-20 represent a multiple jack which normally is disconnected so that a clerk via a test distributer (not shown) and connections 22 .. 28 has access to a selector, Fig. 1, and by known methods may step the selector to and test any subscriber's line appearing in the selector bank. When it is required to operate the selector by a routiner (partly shown in Fig. 2) a plug is inserted in the jack to complete the connections. Line 27 is thereby busied to prevent the test distributer seizing the selector and upon operation of key A, vertical stepping magnet V and relay VV are operated. When the selector steps, relay VG is looked energized. Upon release of key A, V and VV are released and rotary magnet R is operated to step selector in the first level. Magnet R releases VG which de-energizes R after which testing proceeds automatically in known manner. At the successful completion of a test, magnet R is again operated over routiner lead 33 and testing of the next line in the level takes place, the operations being repeated until the selector reaches the end of the level and cam springs S1, S2, S3 are operated. Relay ZZ now operates to energize rotary release magnet RZ and relay VZ. The selector is thus released for rotary motion and relay VZ operates vertical magnet V and relay VV, to step the selector to the second level and energize relay VG to close the circuit of R and initiate the test cycle in the second level of bank contacts. The test is repeated in a similar manner until when the end of the last level is reached contacts NP1 operate relay VC to terminate movement. A supervisory lamp SL then glows to indicate that all lines available have been tested. Instead of test-final selectors, trunk offering switches may be modified in a similar manner to make them available for use either by trunk offering operators or by the routiner.
Patent GB-339218-A (GB)
Title: Improvements in or relating to aircraft landing chassis
IPC: B64C25/00
Filed: 1930-03-10
Abstract: 339,218. Fairey Aviation Co., Ltd., Hodson, C. F., and Charnley, J. S. March 10, 1930. Right to Patent relinquished. Land-wheels; shock-absorbers, applications of. -In landing chassis for aircraft having independently mounted wheels each constrained to move in arcuate paths in planes parallel to the vertical plane of symmetry of the aircraft, each wheel axle b has an inward and upward extension c pivoted at d to the rear spar of the aircraft wing, and a radius rod h. secured to a hub j on the axle, is pivoted about an axis in line with the pivot d. A strut, k with a shock absorber l connects the hub j to the front spar. A fairing o secured to the wing has an arcuate slot p to permit movement of the axle about an axis through d. In a modification the shock absorbing strut is bifurcated to straddle, the wheel and is secured to hubs on both sides of the wheel. The fairing in this modification is carried by the undercarriage structure, and the shock absorber is arranged within the thickness of the wing.
Patent GB-957207-A (GB)
Title: Improvements in or relating to radio horns
Inventor: MARK JOHN RICHARD
IPC: H01Q13/02
Filed: 1961-03-03
Abstract: 957,207. Aerials. MARCONI CO. Ltd. Sept. 26, 1961 [March 3, 1961], No. 7817/61. Heading F4A. To produce broad band impedance matching in a horn radiator of rectangular cross-section giving circularly or elliptically polarised waves at least one corner plate is provided in or substantially in the plane of the horn aperture (Fig. 1) or throat (Fig. 3, not shown). Preferably four such plates 5-8 are provided. The plates which are more commonly of metal than of a dielectric material have a thickness which is small in comparison with the wavelength of the radiator wave. The free edge of the plate may be curved or polygonally shaped. The plates may be slightly curved and they may be inclined at a small angle to a plane perpendicular to the horn axis, Fig. 2 (not shown).
Patent GB-1254266-A (GB)
Title: Improvements in or relating to beverage dispensing machines
IPC: G07F13/10
Filed: 1970-02-18
Abstract: 1,254,266. Dispensing comestibles. CORNELIUS CO. 18 Feb., 1970 [19 Feb., 1969], No. 7828/70. Heading G4V. [Also in Division A4] A beverage dispenser comprises a cup dispenser 11 vending cup 14 via guide 19 to a dispensing station 12, a straw dispenser 13 vending a straw via shoot 25, 26 into the cup and means dispensing beverage, into the cup, e.g. from a selected supply 20 or 21 via solenoid valves 15, 16. Ice may also be dispensed from supply 17 via shoot 27. Monetary mechanism actuates a credit mechanism which allows two or more selector switches to be actuated which, through a timer, cancels the credit mechanism and operates the various dispensers and valves in a given order.
Patent GB-784510-A (GB)
Title: Fuel-fired plant for steel production and method of operating the same
IPC: F27B1/02
Filed: 1954-03-18
Abstract: 784,510. Utilizing waste heat. STRIKFELDT, W. S. March 18, 1954 [March 18, 1953], No. 7911/54. Class 51 (2). Plant for utilizing waste heat from a combined cupola and Siemens-Martin furnace comprises the cupola A, the Siemens-Martin furnace B, a waste heat boiler C and a steam and water drum D. The boiler C, which is heated by gases from both the Siemens-Martin furnace and the cupola, is connected to the drum D, the latter being also connected to a water-cooling system E for the Siemens-Martin furnace doors &c. and to a water-cooling system F at the melting zone of the cupola. Part of the waste gases from the cupola are utilized in a continuous recuperator G which supplies hot blast to the cupola. The surplus waste gases from the cupola, if not required to produce hot blast for the cupola, may be used as a heat supply for Siemens- Martin furnace.
Patent GB-308082-A (GB)
Title: Improved construction of conveyor belt
IPC: B65G15/36
Filed: 1928-03-16
Abstract: 308,082. Cuthbertson, C. J. March 16, 1928. Flat endless - belt conveyers.-A belt A, Fig. 1, of ordinary construction is provided with a coating of indiarubber B in the lower part of which is embedded woven wire, mesh link, or other flexible metal fabric C. Alternatively, wiring D, Fig. 4, may be used, each wire having coils E with upstanding ends attached at intervals.
Patent GB-395094-A (GB)
Title: Improvements in hydraulic apparatus for compressing air
IPC: B67D1/04
Filed: 1932-03-18
Abstract: 395,094. Hydraulic air-pumps. WILSON, R. C., 67, Laurie Street, Stonehouse, Lanarkshire. March 18, 1932, No. 8069. [Class 8 (i).] A vessel in which air is compressed in the upper part by the flow of water into the lower part is provided with a valve 2 in the water inlet pipe in addition to the air-pressure controlled valve 3, the valve 2 having an arm 6 engaged by the float-actuated water outlet slide valve 5 to hold the valve 2 closed when the outlet valve is open and to allow it to open under the water pressure when the outlet valve is closed.
Patent GB-653849-A (GB)
Title: Improvements in or relating to piston rings and pistons therefor
IPC: F16J9/00
Filed: 1948-03-18
Abstract: 653,849. Piston packing. BUTT, G. W. March 18. 1948, No. 8080. [Class 122(i)] A piston having a ring groove therein, the surfaces of the side walls of the groove adjacent the ring being formed each with an annular groove the corresponding faces of the piston ring being formed with an annular groove registering with the first mentioned groove, comprises a main portion 14, a junk ring 16 and an intermediate portion 15 defining between them ring grooves, each side face of which is formed with an annular groove 11. containing rings 10 each side face of which is formed with an annular groove 11. Dowel pins are provided to prevent relative rotation of the various members. The rings and grooves may be stepped to limit radial expansion of the ring. The width A of the ring may be made 2.25 times the depth B.
Patent GB-897281-A (GB)
Title: Improvements in and relating to vibration damper devices for wheels or gears
IPC: F16H55/14
Filed: 1961-03-07
Abstract: 897,281. Vibration dampers. GENERAL MOTORS CORPORATION. March 7. 1961 [March 2, 1960], No. 8213/61. Class 108(3). A device for damping radial vibrations in the rim 14 of a gear wheel 10 due to rotation comprises a key-ring type of spring 22 which is located within an annular groove 20 formed in the inner peripheral face 18 of the rim with the ring tightly engaging the groove bottom surface 24 and either engaging, or being slightly spaced from, the groove shoulders 26, 28. The ring 22, which is made from a strip, e.g. of steel and is in the form of a cylindrical helix having approximately two complete convolutions, has its ends 30, 32 spaced apart and undercut at 34 to facilitate entry of the ring into the groove 20. A groove 44 in an offset portion 42 between the ends 30, 32 of the ring allows outward flow of oil along the rim surface 18. A recess 46 to balance the ring is cut in the inner ring periphery, the ring having more than two convolutions if a heavier ring is desired.
Patent GB-662967-A (GB)
Title: Improvements in or relating to means for diminishing "background noise" in the photo-electric recording of sound
IPC: G11B7/00
Filed: 1949-03-25
Abstract: 662,967. Sound-film apparatus. LAFFON Y. SOTO, A., and SELGAS Y. MARIN, E. DE. March 25, 1949. [April 20, 1948; Dec. 7, 1948] Nos. 8252/49 and 8226/49. Class 40 (ii). In an apparatus for recording sound on photographic film, noise reduction is effected by displacing the light beam by a rectilinear prism into a path parallel to its normal path before it falls upon a toothed opaque light-modulating screen, the displacement being controlled by a rectified fraction of the audio current. Light from a source 1 passes through a condenser 2, a slit 3, a rectilinear prism 13 mounted on a galvanometer 12, and an objective 4, so that a virtual image of the slit appears along the teeth of the modulating screen 7. An objective 8 serves to produce a reduced image of the modulated image on the film 10 in the form of a number of variable width parallel tracks. In a preferred embodiment, the prism 13 occupies a mean position during periods of maximum intensity so that the beam falls upon the screen 7 on a line passing through the centre of the teeth, and the current deflecting the galvanometer is arranged to be inversely proportional to the audio current in order that maximum deflecting current is produced during silent periods. During the production of negative sound records, in which the blackening of the film is reduced to a minimum during silent periods, the beam is displaced by the galvanometer so that during silent periods it falls along the base of the teeth of the screen 7. During the production of direct positive records, the galvanometer current is reversed by means of a commutator 23 and the beam during silent periods falls along the top of the teeth of the screen 7, so that blackening of the film is increased to a maximum during silent periods. The rotation of the shaft 22 carrying the armature 23 moves a carriage 20 carrying a pair of stops 17, 18 limiting the movement of the galvanometer 12 to the appropriate positions for negative or direct positive recording. The ends of the stops 17, 18 are provided with cavities and the lever 26 with a spherical end 19 in order to prevent bounce.
Patent GB-873194-A (GB)
Title: Travelling-wave tube field-straightener assembly
Inventor: COLLINS LESLIE JAMES
IPC: H01J23/087
Filed: 1960-03-09
Abstract: 873,194. Making electrical components; welding by pressure. MULLARD Ltd. March 9, 1960, No. 8326/60. Classes 83 (2) and 83 (4). In making a field straightener assembly for a travelling-wave tube, an interleaved series of clean oxide-free copper and ferromagnetic magnetically soft alloy annular discs is arranged on a cylinderical mandrel and retained thereon between end-stops, the mandrel and discs are heated to 900-1060‹ C. in a reducing atmosphere, the mandrel and discs are allowed to cool and the assembly of cohered discs is removed from the mandrel. The larger oxide-free copper discs A and smaller clean ferromagnetic magnetically soft alloy discs B are clamped on a steel bolt C between the bolt-head E and a bush F and the assembly is heated in hydrogen to about 1000‹ C. so that the rings expand and increase the pressure between them to effect bonding of the rings believed to be by diffusion of the copper into the ferromagnetic discs. The assembly is slowly cooled, the ring assembly is removed and the outer peripheries of the copper rings are trimmed in a lathe and lie on a cylindrical surface. Specification 845,000 is referred to.
Patent GB-668015-A (GB)
Title: Improvements in and relating to vehicle suspension systems
IPC: B60G15/06
Filed: 1950-04-03
Abstract: 668,015. Vehicle spring-suspensions. MONROE AUTO EQUIPMENT CO. April 3, 1950 [June 16, 1949], No. 8329/50. Class 108(ii) In a vehicle suspension system of the kind comprising upper and lower suspension arms pivotally connected to the vehicle frame and having their outer ends connected to a ground engaging wheel, there being spring suspension means and a hydraulic shock absorber connected between the suspension arms, the upper arm is pivotally connected to the frame intermediate its ends and the shock absorber is connected to the lower arm outwardly of its point of connection to the frame and to the upper arm inwardly of its point of connection to the frame. In the arrangement shown in which a steering knuckle assembly 13 is carried by upper and lower suspension arms 9 and 3 respectively, pivoted to a vehicle frame member 7 and which includes a coil suspension spring 15 disposed between the frame and the lower arm 3, a tubular direct-acting hydraulic shock absorber 17 is pivotally connected, concentrically within the spring 15, at points 23 and 19 which respectively are inwardly of the pivotal connection of the upper arm 9 and outwardly of the pivotal connection of the lower arm 13. In another arrangement, Fig. 2 (not shown), the shock absorber is connected between the extreme inner end of the upper arm and a point on the lower arm adjacent to the lower end of the spring.
Patent GB-540266-A (GB)
Title: Improvements in the method of and means for erecting reinforced brick or block structures
IPC: E04B2/04
Filed: 1940-05-10
Abstract: 540,266. Bricks. BUILDING INDUSTRIES SERVICES, Ltd., and BURRIDGE, L. W. May 10, 1940, No. 8470. [Class 87 (i)] Stretcher bricks S and header bricks H are formed with a raised edge so as to provide in each course of a wall &c. a cavity adapted to receive an expanded metal &c. reinforcement embedded in mortar &c. Corner bricks Q have two adjacent edges raised and for narrower walls the two opposite long or short edges of the bricks are raised.
Patent GB-385154-A (GB)
Title: Improvements in or relating to the production of cast bodies from masses consisting of cement or concrete
IPC: B28B13/02
Filed: 1932-03-22
Abstract: Concrete or cement which is not sufficiently moist to be fluid, for example containing 8-12 per cent of water, is blown by compressed air from a container into a mould situated immediately adjacent thereto, the length of connecting pipe being reduced to a minimum.
Patent GB-217671-A (GB)
Title: Improvements in or relating to illuminating devices for billiard tables and the like
IPC: A63D15/00
Filed: 1923-03-26
Abstract: 217,671. Fiford, E. T. March 26, 1923. Shades; reflectors. - A means for lighting billiard tables comprises a trough-shaped shade or reflector provided with screens between the light sources, the screens extending from the top of the shade downwards to such a degree as to cut off the light from the players' eyes without casting shadows upon the table. The shade may consist of a batten A to which the lamp holders are secured and body B of cardboard, gelatine or celluloid on a frame of steel, brass or wire, the interior of the body being coated with dull white paint. The screens D may be of cardboard or aluminium. According to the Provisional Specification the shade may consist of a wood, iron or brass frame covered with an opaque or semiopaque reflecting-material, such as paper, cardboard, celluloid, or gelatine, and may be constructed so as to be easily dismantled for packing purposes.
Patent GB-472030-A (GB)
Title: Improvements in and relating to coating machines
IPC: B05C1/02
Filed: 1937-03-23
Abstract: <PICT:0472030/III/1> <PICT:0472030/III/2> Adhesive is applied to flat articles, such as the arched trim panels 40 of automobile bodies, by passing them between driven roller brushes 10, 11, onto the lower of which adhesive from a tank 14 is projected by means of a rapidly rotating beater 17. The level of adhesive in the tank and consequently the quantity delivered to the brushes is controlled by a pump 20 drawing from a reservoir 19 and delivering through a valve 22, any excess flowing back through a return drain 21 and an overflow pipe 25. Wire strippers or discharge fingers 43 assist in the passage of the coated panels into the delivery shoot 42.
Patent GB-796154-A (GB)
Title: Improvements in or relating to fuel compositions
IPC: C06B31/30
Filed: 1955-03-23
Abstract: 796,154. Pyrotechnic compositions. RUTTER, L. F. March 15, 1956 [March 23, 1955], No. 8531/55. Class 9(2) A non-explosive fuel composition for use in model jet engines consists essentially of potassium nitrate in amount by weight of the final composition of between 40 and 60 per cent and a carbohydrate, the ratio of carbohydrate to nitrate being between 0.55:1 and 1:1. Carbohydrates specified include sawdust, wood flour, paper, hay straw, cotton, starch, gum arabic, carob gum, dextrin, a cereal flour such as wheat flour, and sugars such as dextrose, cane sugar or lactose. The composition may include between 10 and 12 per cent by weight of the composition of nitrocellulose containing up to 12 per cent of nitrogen; between 5 and 10 per cent by weight of a mineral silicate (asbestos, diatomaceous earth, talc); a small quanity of an acid such as citric acid; between 0.5 and 2 per cent of ferrous sulphate and/or potassium permanganate and/or potassium iodide (these last two components acting as accelerators); or dampeners such as not more than 5 per cent of glyceryl monostearate, and between 5 and 10 per cent of ammonium bicarbonate. Example 1 describes a composition comprising potassium nitrate, sawdust, dextrin, nitrocellulose, talc, diatomaceous earth, and ferrous sulphate.