. American engineer and railroad journal . sity of driving andleading the spindle through the keyed member of the attachment reverses at a ratio of 2 to 1. The table is of the bracket knee type and has a large squarelock bearing surface on the upright, to which it is securely is further supported and elevated by a square thread jackscrew beneath it, slightly back of the center of the spindle, to permit boring bars or other tools passing through the table. Iti-, also provided with a liberal >il gi i I lots. This machine has the following dimensions: The distancefrom the
. American engineer and railroad journal . sity of driving andleading the spindle through the keyed member of the attachment reverses at a ratio of 2 to 1. The table is of the bracket knee type and has a large squarelock bearing surface on the upright, to which it is securely is further supported and elevated by a square thread jackscrew beneath it, slightly back of the center of the spindle, to permit boring bars or other tools passing through the table. Iti-, also provided with a liberal >il gi i I lots. This machine has the following dimensions: The distancefrom the center of the spindle to the face of the column is 12inches. The maximum distance from the nose of the spindle tothe top of the table is 28 incln ■-. ; the l<ngth of power feed is 16inches; the spindle has a diameter of 3 inches at the nose, andis provided with a No. 4 Mors<- taper. 1 he spindle driving gearis 8% inches in diameter with a l,i inch face. The table has avertical adjustment of 20 inches. The nine spindle speeds range. HIGH DUTY DRILLING MACHINE WITH SlNc LE SPEED riRIVE PULLEY. between 71 and 306 revolutions per minute. The three feeds , and inch respectively. The net weight of themachine is 2,450 pounds. As an extra attachment, a compound table can be furnished,with a knee specially built for supporting it. This compoundtable has a longitudinal adjustment of 14 inches, and a cross ad-justment of 8 inches. The working surface is l6j/i X 3° the compound table is furnished, the maximum distancefrom the nose of the spindle to the top of the table is decreasedby 354 inches. Frank Thomson Scholarship Examination.—The GeneralManagers of the Pennsylvania Lines East and West of Pitts-burgh announce that the examinations of applicants for theFrank Thomson scholarships will be held in June, 1909. Thesescholarships, amounting to $600 a year, were established in 1907by the three children of the late Frank Thomson. After 1910there wil
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
