GB352982A - A machine for setting the timing of a fuze for a projectile - Google Patents

Abstract

352,982. Setting projectile fuzes. NAAMLOOZE VENNOOTSCHAP HOLLANDSCHE INDUSTRIE-EN HANDELMAATSCHAPPIJ, 10, Javastraat, The Hague. Feb. 13, 1930, No. 4902. Convention date, Dec. 3, 1929. [Classes 9 (i) and 92 (ii).] An apparatus for setting projectile fuzes is provided with a seat e, Fig. 1, which under the weight of a projectile G sinks in a socket d and is at the same time rotated by a screw-thread e<1>. When the seat comes to bear on a disc g, it is free from the screw-threads but continues to rotate on ball bearings k<1> until spring plungers b, b<1> snap into the notches of the projectile and fuze rings respectively. The plunger b is on the socket d, and when the projectile is inserted in the apparatus is wedged into a hole c in the casing G<1> until released as explained above. After this release, the socket d slides down the casing, while a timing member d<1> carrying the plunger b<1> is rotated by a fixed nut h<1> until arrested by a stop m to which it becomes locked by a catch b<5> wedged out by a bar l depressed by a plunger b<3> wedged in by the socket d. The stop m is adjusted along a scale T by a screwspindle O rotated through gearing S by a handle n, Fig. 5, which also operates pointers q<1>, t<1> to follow indications received from a distance ; or the distant control is made to operate the spindle O directly. The time setting can be varied so long as the projectile is in the apparatus. When the projectile is removed, various springs F1, F2 .. return the various parts to the normal position. The removal of the projectile may operate a lever p to start a clockwork, which fires the gun after a predetermined time, or the pointer i of which comes opposite a mark k to indicate when the gun should be fired.