首页>
外国专利>
METHOD OF AND ELECTRIC CIRCUITRY FOR SIGNALLING POSITION OF A MECHANICAL COAL MINER IN RESPECT TO A LONGWALL
METHOD OF AND ELECTRIC CIRCUITRY FOR SIGNALLING POSITION OF A MECHANICAL COAL MINER IN RESPECT TO A LONGWALL
展开▼
机译:相对于长城煤矿机械煤矿的信号位置的方法和电路
展开▼
页面导航
摘要
著录项
相似文献
摘要
2. The electric circuit for signalling the position of a mechanical coal miner in a longwall, particularly at the time of its approaching to the junction of a longwall with a stringing deal drift characterized in that it has a detector of the mechanical coal miner (1) position, build-in and fixed at the distance (L) from the junction of the longwall with the stringing deal drift and it has a detector of the operation (3) of the mechanical coal machine (2) connected with a time coincidence block (4), which is also connected from one side with the detector of the mechanical coal machine (1) position, and on the other side, with the elements of acoustic and optical signalling device (6) through a time delay block (5).IMAGE
展开▼