GB372671A - Process and apparatus for cutting screw-threads - Google Patents
Process and apparatus for cutting screw-threadsInfo
- Publication number
- GB372671A GB372671A GB2650131A GB2650131A GB372671A GB 372671 A GB372671 A GB 372671A GB 2650131 A GB2650131 A GB 2650131A GB 2650131 A GB2650131 A GB 2650131A GB 372671 A GB372671 A GB 372671A
- Authority
- GB
- United Kingdom
- Prior art keywords
- centre
- work
- pin
- ball bearing
- driving mechanism
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machine Tool Units (AREA)
Abstract
372,671. Shaft couplings. LINDNER, H., 57, Fruchtstrasse, Berlin. Sept. 22, 1931, No. 26501. [Class 80 (ii).] In cutting screw threads on the forward and reverse rotation of the work, arrange ments are made to compensate for backlash in the driving mechanism when the rotation is reversed. A bracket 5, keyed to a live centre 2, is provided with adjustable stops 8, Fig. 2, oppositely arranged across a gap 6, these engage the end of a pin 13 rigidly attached to the work through a carrier 16 ; the pin 13 is also supported by a member 11 which is rotatably mounted on the centre 2 by a ball bearing 10 but is braked by a pad 20. This arrangement enables the amount of lag in the reversal of the work piece to be made equal to the backlash occurring in the driving mechanism. A modification consists in having the member 11 fixed to the centre which is mounted in a ball bearing at the end of the driving spindle 2, Fig. 3 (not shown).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2650131A GB372671A (en) | 1931-09-22 | 1931-09-22 | Process and apparatus for cutting screw-threads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2650131A GB372671A (en) | 1931-09-22 | 1931-09-22 | Process and apparatus for cutting screw-threads |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB372671A true GB372671A (en) | 1932-05-12 |
Family
ID=10244645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2650131A Expired GB372671A (en) | 1931-09-22 | 1931-09-22 | Process and apparatus for cutting screw-threads |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB372671A (en) |
-
1931
- 1931-09-22 GB GB2650131A patent/GB372671A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB372671A (en) | Process and apparatus for cutting screw-threads | |
| GB462587A (en) | Improvements in overload clutches | |
| GB566478A (en) | Improvements in centreless turning machines | |
| GB409382A (en) | Improvements in or relating to electrically driven clamping devices for example chucks or the like | |
| GB431549A (en) | Improvements in apparatus for compensating for play in machine tools for grinding or otherwise forming screw threads | |
| GB495901A (en) | Means for eliminating back-lash in the feed screws of machine tools | |
| GB742637A (en) | Non-reversing tapping attachment | |
| GB426322A (en) | Improvements in or relating to kinematograph apparatus | |
| SU37964A1 (en) | Divisible head | |
| SU41815A1 (en) | Attachment to a lathe for cutting helical gears | |
| GB470658A (en) | Improvements in machines for cutting and/or grinding the threads of screws, worms orthe like | |
| GB736690A (en) | Improved mounting for high speed grinder spindles | |
| SU78694A1 (en) | Adaptation to turning and turret lathes to increase the number of revolutions of machined parts | |
| GB560704A (en) | Improved machine for the grinding of screw threads | |
| GB571886A (en) | Improvements in slide actuating mechanism for machine tools | |
| GB485107A (en) | Work-steadies for lathes, and box-tools incorporating such work-steadies | |
| GB459116A (en) | Improvements in and relating to drill spindle arrangements | |
| GB125966A (en) | Improvements in Self-centreing Chucks. | |
| GB481315A (en) | Improvements in feed gearing for lathes and like machine tools | |
| GB591208A (en) | Improvements in grinding wheel supports | |
| GB512293A (en) | Improvements in or relating to apparatus for controlling the revolution of chuck-driving spindle in head-stock for high speed lathe | |
| GB484672A (en) | Improvements in and relating to spindle journalling arrangements for machines adapted to perform turning and thread milling operations | |
| GB129920A (en) | Improved Means applicable for use in Milling Screw-threads. | |
| GB213656A (en) | Improvements in turning-lathes | |
| GB804804A (en) | Improvements relating to rotary cutters for gears, toothed clutches and the like and to assemblies of such cutters with spindles therefor |