GB Patent: GB-158,123
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| Improvements in Turret Heads for Machine Tools
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Patentees:
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| Webster & Bennett, Ltd. (exact or similar names) - Coventry, Warwick County, England |
| Arthur Edward Bennett (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: |
Nov. 11, 1919 |
| Granted: |
Feb. 03, 1921 |
Espacenet patent
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Joel Havens
"Vintage Machinery" entry for Webster & Bennett
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Description: |
| Abstract:
In a turret-head of the type comprising a central clamping-bolt which is adapted also by angular movement to actuate the locking element of the indexing - mechanism, the turret C is carried on a hollow arbor secured to a supporting-member B having a recess into which fits the indexing-ring D. A central spindle F having an enlarged threaded portion F<2> engaging the turret arbor carries an eccentric pin F<3> and may be rotated to move a link F<4> and thus disengage the locking- bolt E of the indexing-mechanism. The rotating gear is carried by a member G having a spigot G<2> fitting the turret arbor. A nut F<7> actuated by a lever clamps the head and rotating gear; when this nut is slackened, the spindle F may be rotated to disengage the locking-bolt by means of an arm F<10>. The rotation of the turret head is effected by means of an arm A<9> on a spindle A<8> carrying a pinion A<7> engaging an internal spur-gear A<6>. The gearing is so arranged that one revolution of this arm, determined by a spring-pressed detent A<11>, produces the required angular movement of the turret. |
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