US Patent: 535,127
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| Device for Making Cutters
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Patentee:
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| Stephen M. Balzer (exact or similar names) - New York, NY |
| USPTO Classifications: |
| 82/18 |
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Patent Dates:
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| Applied: |
May 14, 1894 |
| Granted: |
Mar. 05, 1895 |
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Patent Pictures:
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Joel Havens
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Description: |
| Abstract:
he object of my invention is to provide a simple, cheap and effective device capable of use in an ordinary lathe by means of which co milling-cutters or similar tools may be readily made. The invention consists in a device having an intermittently rotative spindle or sleeve adapted to carry a cutter-blank in such position that it can be operated upon by a suitable tool carried by the tool rest of the lathe, whereby the teeth of the cutter can be formed and "backed-off" through the medium of the intermittent motion given to said spindle. The "backing-off" of the teeth of the cutter is accomplished through the medium of an eccentric motion given to said spindle during its rotation, so that the back of the teeth of the cutter will be operated on more fully than ag the forward cutting edge of said teeth. The invention further consists in the coin- bination with said intermittently rotative spindle or sleeve, of suitable gear wheels provided with differential gears and a pinion that meshes with said gears and is carried around by the face plate or equivalent part of the lathe, so that at certain times during the revolution of said pinion the gear wheel connected with said spindle or sleeve will be turned a distance equal to a few of its teeth, whereby the cutter-blank will be presented at different points to the cutting tool.
Claim:
In a cutter making device, a rotative spindle or sleeve having eccentric motion, and means for imparting to said spindle or sleeve an intermittent rotary motion. |
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