What rhymes with combination fuzes?
com·bi·na·tion fuzes

Are fuzes combining the principles of the simple fuzes. The term is specially applied to time-percussion fuzes, which are so arranged as to burst either at the end of a certain time or upon striking the object. No very exact classification of fuzes has ever been made. If we consider all the operations necessary to the action of the fuze, only certain time fuzes can be considered simple. Concussion fuzes usually depend for their action upon some operation which takes place between the discharge and the time of impact, which bestows a character of sensitiveness which would, if existing at the time of loading, make them too dangerous to handle. Percussion fuzes, also, must have a similar supplementary operation, but this usually takes place at the time of discharge, or upon impact. It is by this means that the safety-pin, screw, or wire holding the plunger is removed or broken. For these reasons these fuzes are ordinarily time-concussion and concussion-percussion, respectively. A fuze, however, usually takes its name from the immediate cause of the explosion. If this is due to the explosion of a fulminate by a direct blow, it is a percussion fuze. If the shock acts in a different way, it is called concussion. If the explosion takes place at the end of a given time, we have a time fuze. There are also fuzes which may be called centrifugal-percussion, concussion-chemical, concussion-friction, etc., examples of which will be given. It is readily seen that it is difficult to make a classification which will cover all the ingenious devices which have been invented.

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