US Patent: 890,210
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| Friction-Clutch
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Patentee:
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| Edward Payson Bullard, Jr. (exact or similar names) - Bridgeport, Fairfield County, CT |
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Patent Dates:
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| Applied: |
Jun. 01, 1907 |
| Granted: |
Jun. 09, 1908 |
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Joel Havens
Vintage Machinery entry for Bullard Machine Tool Co.
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Description: |
| This patent was listed on a Bullard Maxi-Mill patent plate.
Abstract:
It is the purpose of this invention to improve upon well known types of friction clutches by providing means whereby the clamping member of the same may be adjusted with relation to its operating lever, so as to better provide against lost motion as from wear; to provide an adjustment that will permit of the said clutch being timed to act, or take hold, at any particular point of movement in its op crating means, and to generally improve the construction to insure a quicker anil more perfect acting device. My improvements are especially applicable to such a type of clutch as that shown in patent to .Rivett #462,738 of November 10th, 1891 and in connection with which I have used my improvements successfully, upon boring mills, lathes, etc. This type of clutch is obviously adapted for use singly or in series as for instance in various forms of changeable speed gear devices, not shown in the drawings.
Claim:
In a friction clutch of the class described, the combination with a driving and driven member, of a split ring fitted between said members and having a beveled end, a shoe fitted against said bevel end, a screw seated in the ring for adjusting said shoe with relation to the end of ring, a lever fitted intermediate of and engaging the shoe and adjacent end of ring, and a pin and slide rod to operate the lever. |
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