GB630826A - Improvements in tool retainer and aligner for percussive apparatus - Google Patents
Improvements in tool retainer and aligner for percussive apparatusInfo
- Publication number
- GB630826A GB630826A GB29396/47A GB2939647A GB630826A GB 630826 A GB630826 A GB 630826A GB 29396/47 A GB29396/47 A GB 29396/47A GB 2939647 A GB2939647 A GB 2939647A GB 630826 A GB630826 A GB 630826A
- Authority
- GB
- United Kingdom
- Prior art keywords
- steel
- collar
- bearings
- passages
- passage
- 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
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/08—Means for retaining and guiding the tool bit, e.g. chucks allowing axial oscillation of the tool bit
- B25D17/082—Retainers consisting of a swinging yoke or latching means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
630,826. Percussive tools. HIRSCHBERG, C. A. Nov. 4, 1947, No. 29396. Convention date, Sept. 8, 1944. '[Class 124] A collared steel is releasably retained and aligned in a percussive drill by a coupler body of cruciform shape supported for rotation about its transverse axis, the crossed arms having axial passages, one of sufficient diameter to pass the collar, the other passing the steel shank but not the collar, and adjacent arms in diagonally opposite sections having portions cut out to allow rotation of the body to dispose one or other of the passages in alignment with the steel. As shown, a collar 17 on a steel 13 may pass through a passage 30 in one arm of a cruciform coupler body 20, but not through another passage 31. Portions 32, 33 are cut from passages 30, 31 in diagonally opposite sections of the body so that it may be rotated by a handle 36 to dispose the passage 31 in alignment with the steel. The body 20 is supported' in bearings 22 attached to the tool body 10 by studs 23 and springs 28. The bearings may also house spring-operated detents 41 co-operating with flats 43 on trunnions 21 of the body 20 to retain the body in the desired position. The body 20 may be reversed in its bearings to equalize wear.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US630826XA | 1944-09-08 | 1944-09-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB630826A true GB630826A (en) | 1949-10-21 |
Family
ID=22046810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB29396/47A Expired GB630826A (en) | 1944-09-08 | 1947-11-04 | Improvements in tool retainer and aligner for percussive apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB630826A (en) |
-
1947
- 1947-11-04 GB GB29396/47A patent/GB630826A/en not_active Expired
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