|
Title: |
1900 Article-Warner & Swasey Co., Monitor & Screw Type Turret Lathes |
|
Source: |
English & American Lathes, 1900 pg 134 |
|
Insert Date: |
12/23/2012 8:48:10 PM |
The standard types of American monitor-lathes and screw-lathes are well represented by Figs. 243 and 244, each by Warner & Swasey, of Cleveland, Ohio. These are used not only by brass-finishers, for which they are primarily designed, but for the smaller repetitive work required by engineers. Fig. 243 is comparatively plain, the head being ungeared. In Fig. 244 the back-gear is thrown in and out with a lever without stopping the machine. Changes in speed required from turning to threading, and for turning different diameters, are, therefore, easily effected without loss of time.
Fig. 244 has a wire-feed for the automatic sliding of rods from which short lengths are being turned and cut off, and a lever for operating the automatic chuck for gripping and releasing the work, also without stopping the lathe. The turrets on these machines are revolved by the backward movement of the slide, which is effected by the cross-handle or spider. The saddle is fitted on a taper base, by which the height of the centres of the tool-holes can be adjusted to compensate for wear. Wear sideways is taken up by a long taper gib fitting the whole length of the slide. The cutting-off rest is operated by a lever. To a modified type of these lathes a forming-tool slide is fitted, which, being operated by a lever, or screw, carries a forming-tool under the work, finishing it at once to shape and dimensions. |
|
1900 Warner & Swasey Co., Monitor & Screw Type Turret Lathes
|
|