US Patent: 917,444
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| Surface Indicator
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Patentee:
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| William A. James (exact or similar names) - Aurora, Kane County, IL |
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Patent Dates:
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| Applied: |
Jul. 23, 1907 |
| Granted: |
Apr. 06, 1909 |
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Patent Pictures:
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Joel Havens
Martin J. Donnelly Antique Tools
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Description: |
| E. G. Siggers - patent attorney
The invention relates to improvements in surface indicators. The object of the present invention is to improve the construction of surface indicators, and to provide a simple, inexpensive and efficient device of this character, designed for testing work of lathes, planers and analogous machines, and capable of use in a tool holder and of accurately measuring the surface of the work to be turned or otherwise operated on.
Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is;
1. A surface indicator comprising a body having a longitudinal casing and provided at one end thereof with a hollow extension disposed longitudinally of the body and forming a continuation of the casing, a rod or member slidable in the hollow extension, an angle lever having one arm arranged to be actuated by the rod or member, an indicating hand having an axle or spindle portion, a flexible connection arranged on the axle or spindle portion and connected with the other arm of the angle lever, and a tension device connected with the other end of the flexible connection.
2. A surface indicator comprising a body portion consisting of an oblong casing provided at one end with a hollow longitudinal arm, a pivotally mounted indicator hand, a rod or member slidable in the hollow arm and provided at its inner end with a transverse arm, an angle lever pivoted within the casing and consisting of a short transverse arm having a projecting tooth engaging the transverse arm of the rod at the inner edge thereof, and a long arm extending longitudinally of the casing, and means for communicating motion from the long arm of the angle lever to the pivoted indicating hand.
3. A surface indicator comprising a body having a casing, a longitudinal contact rod or member slidable in the body and provided at one end with a transverse arm, an angle lever having one arm arranged to be actuated by the transverse arm of the contact rod or member, an indicating hand having an axle or spindle portion, a flexible connection passing at a point intermediate of its ends around the axle or spindle portion and connected at one end with the other arm of the angle lever, and a spring connected with the other end of the flexible connection.
4. A surface indicator comprising a casing provided at one end with a hollow arm, a pivotally mounted indicating hand located at the other end of the casing and having an axle or spindle portion, a contact rod or member slidable in the hollow arm and provided at its inner end with a transverse arm, a guide located within the casing and receiving the transverse arm of the contact rod or member, an angle lever having one of its arms arranged to be engaged and actuated by the contact rod or member, a flexible connection secured at one end to the other arm of the angle lever and having an intermediate portion of it arranged on the axle or spindle portion of the indicating hand for actuating the same, and a spring connected with the other end of the flexible connection.
5. A surface indicator comprising a body provided at one end with a hollow extension and having a curved face at its other end, said body being also provided at the latter end with side and end graduations, a contact rod or member slidable in the body and provided at one end with an arm, an angle lever mounted within the body and arranged to be actuated by the said arm, an indicating hand pivotally mounted within the body and provided with exteriorly arranged oppositely disposed projecting portions arranged to move over the side and end graduations, and a tension device connected with the angle lever and with the indicating hand for operating the latter when the former is actuated.
6. A surface indicator comprising an oblong body adapted to be arranged in the tool post of a lathe and provided at one end with a hollow tapered arm arranged at an angle to the body, the other end of the body having graduations forming a scale an angularly bent rod slidable in the hollow arm and having its outer end projecting from the outer end of said arm, a pivoted indicating hand, and means for communicating motion from the inner end of said rod to the indicating hand.
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