Fuze encoder device

A fuze encoder device for a spin stabilized shell which comprises:

• shell housing means for supporting said encoder device which includes;
• a cup shaped intrusion section, having a forward end and a rear end, threadedly supported on said shell housing means;
• a stepped shaped cup stakedly disposed on and sealed to the forward end of said intrusion section, said stepped cup having a shoulder section having a plurality of circularly disposed hemispherically shaped lower detent ball seats therein;
• a setback generator positioned in said aft end of said shell housing means for providing electrical energy for said encoder device;
• electronic counting means, disposed in said forward end of said intrusion section, for generating an output fuzing signal;
• a magnetic encoding sensor, positioned in said forward end of said intrusion section, being electrically coupled to said electronic counting means for generating pulses for setting said electronic counting means;
• encoding disc means, rotatably disposed in said forward end of said stepped shaped cup and adjacent to said magnetic encoding sensor, for inducing voltage pulses in said magnetic encoding sensor;
• setback detented despin weight means biasedly coupled to said encoding disc for providing relative rotation of said encoding disc means with respect to said magnetic encoding sensor when the setback forces of launch of said spin stabilized shell decrease;
• indexing ring means, rotatably detented and slidably disposed on said shell housing means, for forming an ogive contour for said spin stabilized shell and for indicating a time for firing said shell, and for rotatably positioning a plurality of localized magnetic fields therein;
• stop coil-pole means fixedly attached to rotate in unison with said encoding disc means and rotatably axially supported within said indexing ring means in the forward end of said intrusion section, for generating a plurality of stop pulse signals, in response to the passage of said coil-pole means in the proximity of said localized magnetic fields said plurality of stop pulse signals controlling said electronic counting means to initiate said output fuzing signal as a function of time set by said indexing ring means;
• and
• lock button detent release means, operatively disposed in said shell housing means, for releasing said indexing ring means to permit rotation therebetween to change the time set for firing said shell after launch and for preventing inadvertent movement of said indexing ring means.