GB Patent: GB-304,980
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| Turrets for Vertical Boring and Turning Mills
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Patentees:
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| Webster & Bennett, Ltd. (exact or similar names) - Coventry, Warwick County, England |
| Alfred Morris Dunn (exact or similar names) - Coventry, Warwick County, England |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jun. 01, 1928 |
| Granted: |
Jan. 31, 1929 |
Espacenet patent
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Joel Havens
"Vintage Machinery" entry for Webster & Bennett
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Description: |
| Abstract:
In a turret for a vertical boring and turning mill, a base flange 5 on the turret is tightened against, a similar flange 6 on the turret slide 3 by means of a split ring consisting o: at least two segments connected rigidly at 11 by means of a key 12. The split 13 is closed before machining the groove 9 so that the ring may open when the clamping means are released. One end of the ring is anchored by means of a bolt 15 which passes through a clearance hole 21 and may be adjusted to take up wear of the ring. The other end of the ring is fitted with a hardener disc 25 and is actuated to clamp the turret by means of a cam 22 on a spindle 23 operated by a hand lever 24. The spindle 23 is also fitted with a cam 29 co-acting with a pivoted lever 31 engaging the index locking-bolt 28 so that, after unclamping the turret, further movement of the lever 24 causes the lever 31 to be rooked to withdraw the bolt. The turret is then indexed and thereafter reverse movement of the lever 24 re-engages the, looking bolt and finally clamps the turret. |
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