US Patent: 60,155
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| Turning Lathe
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Patentee:
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| Ruben W. Drew (exact or similar names) - Lowell, Middlesex County, MA |
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Patent Dates:
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| Granted: |
Dec. 04, 1866 |
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Joel Havens
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Description: |
| The boxes for the reception of the spindle of hand or engine .lathes have heretofore been formed in two pieces let into the framework, those portions of the spindle resting in the boxes being turned down to a smaller diameter than the main portion of the spindle, and being provided with square shoulders to keep it in place. The front or portion of the spindle next the work has also been tapered in its bearings; but where such a spindle is used the work constantly crowds it back, causing it to revolve loosely in its bearings, and to counteract this tendency it is necessary to support the opposite extremity of the spindle in a step by which the spindle may be pressed snugly into its bearing and be kept up to the work. Both of these methods are, however, objectionable, for the reason that when either the spindle or its bearing becomes worn, the line of the centre of the spindle is thrown out of the prolongation .of the line of the centre of the work, and in order to bring the axis of .the spindle and that of the work in the same horizontal line, ft is necessary to remove and file down the boxes, which is a tedious operation. To obviate this inconvenience is the object of my invention, which consists in supporting the spindle in solid boxes, one or both of which are silted and made tapering in the framework; that portion of the spindle resting in one or both of the boxes being made of a greater diameter than the main portion or body of the spindle, "the box or boxes being held in their places in the framework and drawn up snugly around the spindle, as their surfaces become worn, by means of nuts and screws, in an easy and expeditious manner.
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