US Patent: 1,958,024
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| Friction Spring
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Patentee:
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| Austin L. Stowell (exact or similar names) - New Britain, CT |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jan. 20, 1931 |
| Granted: |
May 08, 1934 |
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Russ Allen.
"Vintage Machinery" entry for The Stanley Works
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Description: |
| Placed in a recess within a groove, the spring is held in place and then the spring exerts pressure to keep the caliper or sliding device pressed against the undercut of the groove.
It is interesting to note that this device is show with what will become the Stanley 136 rule which was introduced in the following year of the application. Use was most likey deemed unnecessary on an inexpensive rule and the economy of the early 1930s most likely didn't help with widespread adoption and application. |
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