Abstract
Generally the cylindrical cam or the end cam with a swinging follower is employed for feeding saddles, chucking stocks and threading screws of an automatic screw machine and for driving apparutuses of automatic machines with complicated movements. With the cylindrical cam which acts comparatively slow and has to be made especially fine as in an automatic screw machine, it is desirable that the most suitable cam will be designed and worked up with so thorough deliberation that the grooved curves hold their theoretical accuracy for the actual cutting time and on the other hand it also must be considered that the sudden up and down of curves due to shortening of the idle movement timegive shocks to every parts of the apperatus. In this paper the foundamental equations of the design of the cylindrica1 cam with a swinging follower have been led, then it is expected that the error in the design of cams used for automatic machines will be corrected and their accuracy will be bettered.
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