Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
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FR DE CONSTRUCTION DE MACHINES
Original Assignee
FR DE CONSTRUCTION DE MACHINES
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Filing date
Publication of GB191402516ApublicationCriticalpatent/GB191402516A/en
Application filed by FR DE CONSTRUCTION DE MACHINESfiledCriticalFR DE CONSTRUCTION DE MACHINES
B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
B23G7/00—Forming thread by means of tools similar both in form and in manner of use to thread-cutting tools, but without removing any material
Abstract
2516. Soc. Anon. dite Soc. Franþaise de Construction de Machines Ó Decolleter. April 18, 1913, [Convention date]. Void. [Published under Section 91 nf the Act.] Screwing.-A screwing or tapping spindle for use on automatic lathes is driven faster than the work during threading and is locked during running off by ball clutches 15, 15<a>, Fig. 1, actuated by axial movement of the spindle. A spring 18 normally maintains the clutch 15<a> in operation. Turning.-The tool slide is fed by a cam-drum 20, Fig. 3, driven by a, pinion 26, loose on the shaft 27 to permit timing adjustments and driven through clutch 29.
GB191402516D1913-04-181914-01-30Improvements in or connected with Tapping and Screw-threading Attachments for Automatic Lathes and the like.
Expired - LifetimeGB191402516A
(en)