GB189484A - Improvements in electric hand drills - Google Patents
Improvements in electric hand drillsInfo
- Publication number
- GB189484A GB189484A GB1993721A GB1993721A GB189484A GB 189484 A GB189484 A GB 189484A GB 1993721 A GB1993721 A GB 1993721A GB 1993721 A GB1993721 A GB 1993721A GB 189484 A GB189484 A GB 189484A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electric hand
- armature spindle
- hand drills
- motor casing
- grinding
- 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
- B23Q11/12—Arrangements for cooling or lubricating parts of the machine
- B23Q11/126—Arrangements for cooling or lubricating parts of the machine for cooling only
- B23Q11/127—Arrangements for cooling or lubricating parts of the machine for cooling only for cooling motors or spindles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B45/00—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor
- B23B45/008—Gear boxes, clutches, bearings, feeding mechanisms or like equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B45/00—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor
- B23B45/02—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor driven by electric power
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
189,484. Sweetland, I. July 25, 1921. Disc apparatus.-A portable electric grinding-machine is provided with a hollow pistol-grip 12 disposed substantially perpendicular to the axis of the motor casing 10. A fan 40 mounted on the armature spindle circulates air through the handle, windings, and ports 41 in the motor casing. A push-switch 35 is provided for controlling the motor and is disposed so as to be operated by the thumb of the operator. The grinding-wheel is secured on the armature spindle direct.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US479868A US1411539A (en) | 1921-06-23 | 1921-06-23 | Case for electric hand drills |
GB1993721A GB189484A (en) | 1921-07-25 | 1921-07-25 | Improvements in electric hand drills |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1993721A GB189484A (en) | 1921-07-25 | 1921-07-25 | Improvements in electric hand drills |
Publications (1)
Publication Number | Publication Date |
---|---|
GB189484A true GB189484A (en) | 1922-11-27 |
Family
ID=10137613
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1993721A Expired GB189484A (en) | 1921-06-23 | 1921-07-25 | Improvements in electric hand drills |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB189484A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103331464A (en) * | 2013-06-26 | 2013-10-02 | 吴江市物华五金制品有限公司 | Multi-function electric drill |
-
1921
- 1921-07-25 GB GB1993721A patent/GB189484A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103331464A (en) * | 2013-06-26 | 2013-10-02 | 吴江市物华五金制品有限公司 | Multi-function electric drill |
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