 | Fred Herbert Colvin, Frank Arthur Stanley - 1908 - 114 pàgines
...here shown, we may mill cams of any rise with the gears regularly furnished with the milling machine. With the head set vertically the lead of the cam would...we can produce any lead on the cam less than that for which the machine is geared. The head being inclined brings the cam farther from the end of the... | |
 | Franklin Day Jones - 1914 - 326 pàgines
...head set in a vertical position, the "lead" of the cam (orbits rise for one complete revolution) will be the same as the lead for which the machine is geared; but when the spiral head and cutter are inclined, any lead or rise of the cam can be obtained, provided... | |
 | Franklin D. Jones - 1964 - 576 pàgines
...degrees or in a vertical position, the lead of the cam or its rise for one complete revolution will be the same as the lead for which the machine is geared. For instance, if a combination of gearing is used that advances the table 0.67 inch during one revolution... | |
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... will be apparent by considering the result obtained when the spindle is in a vertical position and also the effect when it is in a horizontal position. When a cam is milled with the indexhead set at 90 degrees or in a vertical position, the lead of... 