GB128120A - Improvement in Screw-cutting Apparatus. - Google Patents
Improvement in Screw-cutting Apparatus.Info
- Publication number
- GB128120A GB128120A GB1921118A GB1921118A GB128120A GB 128120 A GB128120 A GB 128120A GB 1921118 A GB1921118 A GB 1921118A GB 1921118 A GB1921118 A GB 1921118A GB 128120 A GB128120 A GB 128120A
- Authority
- GB
- United Kingdom
- Prior art keywords
- screw
- lathe
- rack bar
- pivot
- lever
- Prior art date
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q35/00—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually
- B23Q35/04—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually using a feeler or the like travelling along the outline of the pattern, model or drawing; Feelers, patterns, or models therefor
- B23Q35/08—Means for transforming movement of the feeler or the like into feed movement of tool or work
- B23Q35/20—Means for transforming movement of the feeler or the like into feed movement of tool or work with special means for varying the ratio of reproduction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G1/00—Thread cutting; Automatic machines specially designed therefor
- B23G1/02—Thread cutting; Automatic machines specially designed therefor on an external or internal cylindrical or conical surface, e.g. on recesses
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Transmission Devices (AREA)
Abstract
128,120. Romer, J. A. Nov. 22, 1918. No Patent granted (Sealing fee not paid). Lathes.-An attachment for a lathe is constructed so that the pitch of a screw being cut in the lathe can be varied by a simple adjustment. A rack bar E is reciprocated through worm gearing from the lathe mandrel, and has pivoted to it one end H of a lever F, the other end of which slides in a pivot G adjustable towards and from the rack bar by a screw in the frame T. The bar I, which is adapted to hook on the tool carriage, is attached to the lever F by a pin-and-slot mechanism, so that the tool carriage has a definite proportion of the motion of the rack bar varied by adjusting the position of the pivot G. Specifications 221/02 and 20103/10 are referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1921118A GB128120A (en) | 1918-11-22 | 1918-11-22 | Improvement in Screw-cutting Apparatus. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1921118A GB128120A (en) | 1918-11-22 | 1918-11-22 | Improvement in Screw-cutting Apparatus. |
Publications (1)
Publication Number | Publication Date |
---|---|
GB128120A true GB128120A (en) | 1919-06-19 |
Family
ID=32348277
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1921118A Expired GB128120A (en) | 1918-11-22 | 1918-11-22 | Improvement in Screw-cutting Apparatus. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB128120A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0086359A2 (en) * | 1982-02-11 | 1983-08-24 | Friedrichsfeld GmbH Keramik- und Kunststoffwerke | Device for embedding an electrical heating wire in a socket-like plastic object |
-
1918
- 1918-11-22 GB GB1921118A patent/GB128120A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0086359A2 (en) * | 1982-02-11 | 1983-08-24 | Friedrichsfeld GmbH Keramik- und Kunststoffwerke | Device for embedding an electrical heating wire in a socket-like plastic object |
EP0086359B1 (en) * | 1982-02-11 | 1987-11-19 | Friedrichsfeld GmbH Keramik- und Kunststoffwerke | Device for embedding an electrical heating wire in a socket-like plastic object |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB128120A (en) | Improvement in Screw-cutting Apparatus. | |
GB434566A (en) | Improvements relating to drilling or boring machines and the like | |
US1443899A (en) | Milling machine | |
US1347789A (en) | Lead-varying mechanism | |
US2232704A (en) | Screw thread grinding machine lead compensator | |
US612412A (en) | Index-head for milling-machines | |
GB569883A (en) | Positive cross feed stop assembly attachment for turning lathes | |
US2660737A (en) | Lathe attachment for progressively cutting a thread | |
US1328670A (en) | Final adjusting device for machine-tools | |
GB1087708A (en) | Improvements in gear shaving machines | |
US1339984A (en) | Micrometer gage or stop device for lathes or the like | |
GB722871A (en) | Steplessly adjustable feed and thread cutting device on lathes | |
GB543768A (en) | Improvements in lead screw adjusting means | |
GB1156102A (en) | A Screw-Thread-Cutting Lathe. | |
US1285694A (en) | Carriage-feed mechanism for lathes. | |
US2405609A (en) | Form tool chip breaker generating fixture | |
GB170067A (en) | Improvements in the method and means of mounting lenses | |
GB864333A (en) | Improvements in work-feeds for shearing and nibbling machines | |
US1426546A (en) | Lathe | |
US1385491A (en) | Back-facing attachment for lathes | |
GB168060A (en) | Automatic screw-cutting lathe | |
US1421324A (en) | Lathe attachment | |
US1407515A (en) | Lathe or milling-machine attachment | |
US1698319A (en) | Taper attachment | |
GB901370A (en) | Improvements in or relating to portable apparatus for machining valve seats and other surfaces |