In a ruling engine , support ,a pair of alined carriages each having a three point rolling contact with said support ,a guide bar along which said carriages may move ,means individual to each carriage tending to move said carriages in the same direction ,a lost motion connection between said carriages ,means individual to each carriage for clamping the respective carriage to said guide bar ,each of said clamping pressure of a uniform amount at each clamping action ,and means actuable to serially actuate said clamping means to release one of said carriages for motion equal to said lost motion while the other carriage is clamped and then to release said other carriage for motion equal to said lost motion while said one carriage is clamped ,whereby said work carriage progresses along said guideway by successive feed increments each equal to the amount of said lost motion.
,actuable连续和手段来开动夹紧方式说的车厢释放一个说运动等于说失去了运动,而其他运输夹紧,然后释放说其他运送等于说运动启动,说一辆车丢了夹紧,因此说工作进展的马车沿着导轨连续饲料增加说每个等于说失去的数量的运动。
