GB331719A - Improvements in telescopic guards for rotating elements such as rotary shafts - Google Patents
Improvements in telescopic guards for rotating elements such as rotary shaftsInfo
- Publication number
- GB331719A GB331719A GB2352029A GB2352029A GB331719A GB 331719 A GB331719 A GB 331719A GB 2352029 A GB2352029 A GB 2352029A GB 2352029 A GB2352029 A GB 2352029A GB 331719 A GB331719 A GB 331719A
- Authority
- GB
- United Kingdom
- Prior art keywords
- guard
- arm
- volute
- extended
- oil
- 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
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/08—Protective coverings for parts of machine tools; Splash guards
- B23Q11/0825—Relatively slidable coverings, e.g. telescopic
- B23Q11/0841—Relatively slidable coverings, e.g. telescopic with spirally wound coverings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
- Earth Drilling (AREA)
Abstract
331,719. Cincinnati Bickford Tool Co., and Klausmeyer, D. C. July 31, 1929. Guards. - An adjustable guard for rotating members, such as shafts, comprises a strip of spring steel or other resilient material 20 in volute form with the turns overlapping, as shown at 21, the larger end being surrounded by a tubular member 22, which houses some or all of the convolutions when the guard is collapsed. The guard is particularly, but not exclusively, applicable to machines in which frame members, between which the shaft &c. runs, mutually approach and recede. As applied to a radial drill, Fig. 2, the guard 20 surrounds the vertical driving-shaft 12, to which is slidably keyed a bevel wheel 17 driving the horizontal shaft 7 on the radial arm 4, the arm 4 being raised and lowered by a feed screw (not shown). The volute strip 20, which is initially in flat spiral form, is extended as the arm 4 rises and is secured by hooked ends 20b, 20a and screws to sleeves 23, 22 respectively on the arm 4 and on a bearing 13, which is integral with the usual sleeve 3 rotatable on the fixed vertical pillar (not shown). Alternatively, the guard may be initially volute and merely bear at its ends on the parts 4, 13. The sleeve 22 may contain oil or oil-soaked packing, the oil being picked up by the guard when collapsed, distributed over the contacting surfaces during expansion, and returned by gravity down the edges of the convolutions. In a modification, where the parts 4, 13 do not approach so closely, the sleeves 22, 23 are extended, as shown at 22b, 23<b>, Fig. 7, and the guard 20 is shortened so that it is reversely extended, as shown in broken lines, when the radial arm is at its lowest point.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2352029A GB331719A (en) | 1929-07-31 | 1929-07-31 | Improvements in telescopic guards for rotating elements such as rotary shafts |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2352029A GB331719A (en) | 1929-07-31 | 1929-07-31 | Improvements in telescopic guards for rotating elements such as rotary shafts |
Publications (1)
Publication Number | Publication Date |
---|---|
GB331719A true GB331719A (en) | 1930-07-10 |
Family
ID=10196945
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2352029A Expired GB331719A (en) | 1929-07-31 | 1929-07-31 | Improvements in telescopic guards for rotating elements such as rotary shafts |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB331719A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111958495A (en) * | 2020-08-28 | 2020-11-20 | 中国重汽集团济南动力有限公司 | Passive bevel gear sand blasting cleaning process |
-
1929
- 1929-07-31 GB GB2352029A patent/GB331719A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111958495A (en) * | 2020-08-28 | 2020-11-20 | 中国重汽集团济南动力有限公司 | Passive bevel gear sand blasting cleaning process |
CN111958495B (en) * | 2020-08-28 | 2022-05-03 | 中国重汽集团济南动力有限公司 | Passive bevel gear sand blasting cleaning process |
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