This section is from the book "Evolution Of The Machine Shop", by James Hartness. Also available from Amazon: Evolution Of The Machine Shop.

2 x 24-inch Turret Lathe, with Cross-feed Head Vertical Section
Electric drive is shown on this and the opposite page. The motor is mounted on a base that compensates for the change in center distance as the sliding head travels. The starting box may be attached to the face of the machine or to the iron work table which accompanies each machine having the chucking or bar outfit. Any constant speed motor may be used. No variation in speed is required in the motor, neither is it necessary to reverse the motor, for all such changes are obtained by mechanism in the head.

End Elevation Electric Drive for 2 x 24.

Front Elevation Electric Drive for 2 x 24.
Only one stock support is shown on opposite page on account of smallness of page. Three supports are furnished. The second is placed 3 feet from the one shown in cut and the third is placed 5 feet beyond the second support.

Countershaft Drive, End Elevation of 2 x 24.

Plan for Setting up 2 x 24 Flat Turret Tathp with Countershaft.
Electric drive is shown on this and the opposite page. The motor is mounted on a base that compensates for the change in center distance as the sliding head travels. The starting box may be attached to the face of the machine or to the iron work table which accompanies each machine having the chucking or bar outfit. Any constant speed motor may be used. No variation in speed is required in the motor, neither is it necessary to reverse the motor, for all such changes are obtained by mechanism in the head.

End Elevation Electric Drive of 3 x 36.

Bartlett & CO., N.Y,.
The Location Of These Holes May Vary 1/2 Inch
Front Elevation Electric Drive for 3 x 36
Only one stock support is shown on opposite page on account of smallness of page. Three supports are furnished. The second is placed 3 feet from the one shown in cut and the third is placed 5 feet beyond the second support.

End View of 3 x 36.

Front Elevation of 3 X 36 with Countershaft.
 
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