US Patent: 797,559
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| Calipers
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Patentee:
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| James H. Cook (exact or similar names) - Athol, Worcester County, MA |
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Patent Dates:
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| Applied: |
Jul. 29, 1904 |
| Granted: |
Aug. 22, 1905 |
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Patent Pictures:
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Joel Havens
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Description: |
| Abstract:
Calipers and other similar instruments are provided with a friction-joint between two members thereof, which joint may be tightly set, so that the members will be tightly held in their adjusted positions. It has been found desirable to provide a joint of this character with beeswax or some similar compound between the members thereof to prevent wear as the parts are adjusted under the friction and to prevent oxidation in the parts interfering with the smooth action thereof. The object of this invention is to construct a joint of this character so that it may contain a compound of this nature.
Claim:
A calipers or similar instrument made up of two members, one having a circular hole, and the other a noncircular hole, a nut having a circular rim to fit the circular hole in one member, and a noncircular portion to fit the noncircular hole in the other member, a large-headed screw threaded into said nut to hold the members together, and holes in the member which has the circular hole in which a lubricating compound is placed. |
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