GB147126A - Arrangement for the electrical long distance control of the valve gear of a hydraulic gun pointing gear - Google Patents

Abstract

147,126. Krupp Akt.-Ges., F. Nov. 27, 1916, [Convention date]. Mountings.-Relates to electric long-distance control of the valve-gear of hydraulic gunlaying apparatus, and consists in providing in combination (1) an Hydraulic valve E which is opened to impart movement to the gun by operating an electric receiving-motor G from a distant transmitter H, and closed, when the gun has moved through the prescribed angle, by gearing connecting it with the gun barrel A, and (2) cut-off valves Band C in the pressure pipes, the opening and closing of these valves being effected in accordance with the mutual angular positions of the receiver G and gun A. The invention is shown applied to elevating-gear although it may be applied to training-gear. The elevating-gear comprises an hydraulic piston and cylinder device a<2>, A<3> fed by pressure pipes a<4>, a<5> leading by way of the cut-off valves B, C to a controlling piston-valve E moving in a valve-box having a pressure pipe e<1> and exhaust pipe e<2>. The valve E is connected through a rack e<7> to a sector-lever f<19> moving in a box F shown in detail in Fig. 2. The lever f<19> carries a spring-pressed roller f<16> engaging a two-diameter spiral rib f<13>, f<14> on a drum which is rotated through differential gear f<10>. f<11>, f<12> and wormgears f<3>, f<5> on the one hand by movements of the shaft g<1> of the receiver G, and on the other hand by movements of the shaft f<8> geared to the gun barrel A. The receiver G is rotated synchronously with a transmitter H set through a differential gear h<3>, h<4>, h<5> on the one hand by a ranging hand-wheel h<1> and on the other hand by a handwheel h<2> which is rotated, to correct for the roll of the ship, so as to keep the horizon in the view of a telescope h<9>. When the gun has moved to accord with the receiver G, the roller f<16> is in neutral position on the transition portion f<15> of the spiral rib and a switch arm f<21>, connected to a conductor k<4>, is situated between a pair of electric contacts connected to conductors k<7>, k<8> these conductors forming part of a circuit through the solenoids b<4>, c<4> actuating the cut-off valves. Movements of the roller in one direction or the other from its neutral position, cause the contact f<21> to close electric circuits through the solenoids b<4>, c<4> to open the valves B, C against the action of springs b<2>, c<2>. When the prescribed movement of the gun has taken place, the valve E is returned to central position, and the circuits through the solenoids are broken to enable the cut-off valves to close. When the cut-off valves are in closed position, and the switch K' is open, a piston-valve D can be operated by the handwheel d' to bring the gun to the horizontal position for loading, the gun being automatically returned to the elevation prescribed by the receiver G after the gun has been loaded and switch K<1> closed.