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41. 发明专利

GB619074A Improvements in or relating to maps and the like 未知
公开(公告)号：GB619074A
公开(公告)日：1949-03-03
申请号：GB2934946
申请日：1946-10-02
申请人： ED J BURROW & COMPANY LTD , JOHN FOSTER
IPC分类号： G09B29/10

42. 发明专利

GB618001A Drilling motion indicator for a cable tool drill 未知
公开(公告)号：GB618001A
公开(公告)日：1949-02-15
申请号：GB2925346
申请日：1946-10-01
申请人： JOHN FOSTER KENDRICK
IPC分类号： E21B47/00
摘要： 618,001. Well boring. KENDRICK, J. F. Oct. 1, 1946, No. 29253. [Class 85] [Also in Group XXXVII] To indicate the instant of impact of a cable tool drill with the bottom of a bore as well as the upward impact of the jars and rotation of the swivel, there is secured in the vicinity of the tool string an impact switch 33 which opens an electrical circuit connected to an indicator on the surface. The circuit comprises a battery from which current flows through an indicator to a fixed brush in contact with a collector ring and thence to an insulated wire built up in the drill cable to the switch. The return circuit may be another insulated wire in the drill cable or earth return. The switch may be either secured to the base of the swivel spindle 31 of the tool string or to the cable.

43. 发明专利

GB616714A Improvements in or relating to stamps or drop hammers 未知
公开(公告)号：GB616714A
公开(公告)日：1949-01-26
申请号：GB2213146
申请日：1946-07-25
申请人： MASSEY LTD B & S , PHILIP CHARLES NEWTON PICKWORT , JOHN FOSTER
IPC分类号： B21J13/04
摘要： 616,714. Power hammers. MASSEY, Ltd., B. & S., PICKWORTH, P. C. N., and FOSTER, J. July 25, 1946, No. 22131. [Class 83 (iv)] In a drop hammer in which the anvil block 10 is formed on its upper surface with machined seatings 11 stepped to provide thrust shoulders 12 and each standard 13 is formed with corresponding seating surfaces 14 stepped to provide a thrust shoulder 15, the standards also have lugs 17, 18 adapted to embrace the front and rear of the anvil block, whereby the standards are keyed to the anvil for the full length of their respective seatings on both front and rear sides. Renewable steel wearing plates are inserted between the thrust shoulders 12 and 15, and between adjacent vertical standard and anvil surfaces for taking up wear and restoring alignment.

44. 发明专利

GB585448A Improvements in or relating to electron discharge tubes 未知
公开(公告)号：GB585448A
公开(公告)日：1947-02-07
申请号：GB749341
申请日：1941-06-13
申请人： STANDARD TELEPHONES CABLES LTD , JOHN FOSTER
IPC分类号： H01J21/06 , H01J21/36
摘要： 585,448. Thermionic valves. STANDARD TELEPHONES & CABLES, Ltd., and FOSTER, J. June 13, 1941, No. 7493. [Class 39 (i)] Thermionic valves particularly for ultrahigh frequency operation, comprise an envelope separated into two portions 1, 2 by an apertured metal disc 3 which extends outside the valve. The anode 12 which may be thimble-shaped is sealed to the outer end of one envelope portion. A unitary structure comprising mica plates 8 on which the grid and cathode are carried is mounted on a pinch 6 on the other portion. The grid is wound on supporting wires 7, and is connected electrically with the disc 3 by springs. The lower turns of the grid wires are cut away to enable the cathode to be brought close to the operative side of the grid. The disc 3 is earthed and functions to screen the input and output sides of the valve from one another ; it may also provide the support for the valve. Specification 585,447 is referred to.

45. 发明专利

GB584638A Aeroplane landing gear 未知
公开(公告)号：GB584638A
公开(公告)日：1947-01-20
申请号：GB118545
申请日：1945-01-15
申请人： JOHN FOSTER KENDRICK
IPC分类号： B64C25/40
摘要： 584,638. Aircraft landing wheels. KENDRICK, J. F. Jan. 15, 1945, No. 1185. [Class 4] To effect rotation of a landing wheel prior to its making contact with the ground, the hub is furnished with turbine blades 10, a stationary plate 12 being provided with nozzles 13, 16, which respectively supply air to, and exhaust it from, the turbine chamber. The supply and exhaust nozzles are arranged alternately around the circumference of the upper portion of the plate 12, the supply nozzles pointing forwardly and the exhaust nozzles rearwardly. The lower portion of the nozzle plate is provided with solid lugs 17 of greater mass than the nozzles 13, 16, whereby the nozzle plate 12 is normally held stationary. In the event of the nozzle plate adhering to the wheel body, for example due to ice formation, the plate is rotated with the wheel when the latter contacts the ground, thereby preventing skidding of the wheels and nose pitching of the aircraft. According to modifications, the nozzle plate may normally be held in position by a frangible pin passing through the wheel axle, or by an expansion spring coiled around abutting collars on the hub of the plate and the undercarriage leg.

46. 发明专利

CA397384A FOOTWEAR 未知
公开(公告)号：CA397384A
公开(公告)日：1941-06-24
申请号：CA397384D
申请人： NEILSON JOHN FOSTER
发明人： NEILSON JOHN FOSTER

47. 发明专利

GB521557A Improvements in or relating to hinges 未知
公开(公告)号：GB521557A
公开(公告)日：1940-05-24
申请号：GB3357238
申请日：1938-11-18
申请人： EDGAR JOHN FOSTER
IPC分类号： E05F1/12 , E05F1/14
摘要： 521,557. Hinges. FOSTER, E. J. Nov. 18, 1938, No. 33572. [Class 65 (ii)] In a spring hinge the spring 7 is pivotable to the two flaps 1, 2 and urges in movable flaps in one or other direction according to the position of the movable pivot 9 in relation to the dead centre line f. Reference has been directed by the Comptroller to Specifications 2722/04, [Class 65], 114,533 and 206,636 [both in Class 65 (ii)]

48. 发明专利

GB498923A Improvements in or relating to the lubrication of ammunition 未知
公开(公告)号：GB498923A
公开(公告)日：1939-01-11
申请号：GB1631737
申请日：1937-06-11
申请人： REMINGTON ARMS CO INC , JOHN FOSTER HUTCHINSON , ALBERT ADAM SCHILLING
IPC分类号： F42B14/04
摘要： Ammunition has one or more of the following components, namely projectiles, bullets, shotgun pellets, wads, and cartridge cases formed of metal or other materials, e.g. paper, provided with a coating of a solid lubricant consisting of one or more higher alcohols containing at least 14 carbon atoms, with or without a proportion of a high melting point wax amounting to not more than 75 per cent by weight of the total lubricant. Specified alcohols are palmityl and stearyl alcohols, and cuts having melting points between those of palmityl and stearyl alcohol or between those of stearyl and cetyl alcohol. The waxes specified are high melting petroleum derivatives, ozocerite, ceresin, bees-wax, carnauba wax, candelilla wax, bayberry wax, Chinese insect wax and synthetic waxes obtained by chlorinating aromatic hydrocarbons, e.g. naphthalene. The lubricant may be applied to the components in the melted condition, as a dispersion, e.g. in water, or as a solution, e.g. in aliphatic hydrocarbons derived from petroleum, e.g. benzene, aromatic hydrocarbons, e.g. benzol, toluene and xylene, or chlorinated hydrocarbons, e.g. carbon tetrachloride, chloroform, ethylene dichloride and trichlorethylene.

49. 发明专利

GB287649A Improvements in or relating to valves or closure devices for controlling the flow of liquids 未知
公开(公告)号：GB287649A
公开(公告)日：1928-03-29
申请号：GB8827
申请日：1927-01-03
申请人： ROBERT ARNOLD BLAKEBOROUGH , JOHN FOSTER BROWN , HARRY TART
IPC分类号： F16K15/03
摘要： 287,649. Blakeborough, R. A., Brown, J. r., and Tart, H. Jan. 3, 1927. Fluid-actuated valves.-A reflux or non-return valve adapted to close automatically on a reversal of flow or on a predetermined drop in pressure or velocity of flow, has a valve member pivotally mounted in a casing, so that when the valve is fully open the passage way through the casing is unobstructed and forms a continuation of the bore of the conduit. In the form shown in Fig. 1, the valve, member is mounted on a shaft c arranged in a pocket a and extending to the outside of the casing where it is provided with an arm d. The arm d has a projecting pin c normally engaged by a hook f formed on one arm f of a counterweighted lever h. A tumbler weight i is normally held in a raised position by a catch j actuated by a counterweighted paddle k in the fluid conduit, but when released it falls on the arm h of the lever h to release the hook f and allow the valve to close. The tumbler may be controlled by a piston or diaphragm subject to conduit pressure and when used in a condenser system may be further controlled by a second diaphragm subject to the vacuum produced by the air pump. Fig. 7 shows a modification in which means are provided to reset the device automatically when pressure is restored in the pipe line. The valve is normally held in its open position by a counterweighted hook 16 engaging a roller 15 carried by an arm fixed to the valve spindle c. A tumbler 22 pivoted on a shaft 20 is normally held in its raised position by a counterweighted catch 28, which catch is released by a weighted lever 24 when conduit pressure acting on a valve member 46 falls. The tumbler in falling engages an arm 19 connected by a link 18 to the hook and so releases the catch and allows the valve to close. The main valve is moved to its open position by a power cylinder acting through a rack 34 and toothed quadrant 35 pivoted on the shaft c and adapted to engage a lug 36 to open the valve and move the roller 15 into engagement with the hook 16. At the same time a projection 39 on a toothed wheel 38 connected by an idle wheel 37 with the quadrant engages the tumbler to move it into its raised position. The pressures acting in the power cylinder and also on a piston. 45 coupled to the valve 46 are controlled by a pair of interconnected cocks 29, 30 coupled by a link 28 to an arm 27 pivoted on the shaft c. Conduit pressure is supplied to both cocks by a pipe 31, and exhausted through connections 29 and 30 . The cock 30 has connections to each end of the power cylinder and the cock 39 has a connection with the chamber 32 below the piston 45. As the main valve closes an am 26 connected to the lever d! moves the lever 27 so as to reverse the cocks 29 and 30, so that when pressure is re-established pressure is admitted beneath the piston 45 to raise the lever 24 and permit the catch 23 to return to its operative position and to the right hand end of the power cylinder to move the main valve to its open position. As the main valve reaches its open position a roller 41 on a disc 40 connected to the wheel 38 releases a counterweighted catch 42 to release a second tumbler 43. This falls on an arm 49 connected to the link 28 and again reverses the control valves, so connecting the chamber 32 to exhaust and moving the piston back to its normal position. This movement of the piston restores the tumbler 43 to its raised position. The apparatus can be tested by manipulating the hand lever 49. In a modification the valve is actuated by a power cylinder acting through chain gearing and clutch mechanism under the control of a weighted auxiliary valve actuated by conduit pressure.

50. 发明专利

GB172885A New and useful improvements in oil separators 未知
公开(公告)号：GB172885A
公开(公告)日：1921-12-22
申请号：GB471521
申请日：1921-02-10
申请人： JOHN FOSTER
IPC分类号： F22B37/26
摘要： 172,885. Foster, J. Feb. 10, 1921. Purifying liquids.-Exhaust steam or the like supplied to the casing 27 condenses on rollers 1, 2, which are geared together. The nip of the rollers prevents the water from passing, but allows oils to pass. The oil is removed from the rollers 1 by the edge of a receiver 11 in which it collects. The ends of the rollers are sealed by leather face-plates 9, 8, mounted respectively on a fixed bracket 5 and on a loose bracket 7, pressed against the end of the rollers by springs 30 engaging a fixed bracket 6. A plate 10 clears the roller 2 and prevents direct communication between the receiver 11 and the body of the casing. The oil is discharged from the receiver 11 by a pump 12 operated from the shaft 4 of the roller 1 bv a cam 21 and lever 18. A float valve may be provided to prevent undue accumulation of water.

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