GB250379A - Improvements in drilling machines - Google Patents
Improvements in drilling machinesInfo
- Publication number
- GB250379A GB250379A GB789925A GB789925A GB250379A GB 250379 A GB250379 A GB 250379A GB 789925 A GB789925 A GB 789925A GB 789925 A GB789925 A GB 789925A GB 250379 A GB250379 A GB 250379A
- Authority
- GB
- United Kingdom
- Prior art keywords
- drill
- drilling
- spindle
- sleeve
- screwed
- 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
- B23B—TURNING; BORING
- B23B39/00—General-purpose boring or drilling machines or devices; Sets of boring and/or drilling machines
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
Abstract
250,379. Wade, F. R. March 24, 1925. Drilling-machines; attachments for drilling; chucks.-In a vertical spindle drilling-machine the spindle is either wholly or partly hollow and is of polygonal cross-section so as to rotate with but be vertically slidable in a driven sleeve. The sleeve p may be cylindrical internally for the greater part of its length, one or both ends being swaged down to fit the octagonal &c. drill spindle r. The lower'end of the drill spindle is tapered and split, to constitute a tool chuck, the. jaws being closed by a screw cap 7 and the drill being positively driven by the engagement of a flat on its shank, with a pin 9 passing through the drill spindle and a collar 8 screwed thereon. The driving pulley q may be cast on to the sleeve p and forms a seat for a spring y, Fig. 1, which retains the drill in its uppermost position. The frame of the machine may be of aluminium or aluminium alloy, and is provided with screwed lugs in its base for attachment to a bench or lathe bed &c. The work table 10 has a hollow stem which may be provided at its upper end with a recess to receive a disc or headed plug for use when drilling small articles.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB789925A GB250379A (en) | 1925-03-24 | 1925-03-24 | Improvements in drilling machines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB789925A GB250379A (en) | 1925-03-24 | 1925-03-24 | Improvements in drilling machines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB250379A true GB250379A (en) | 1926-04-15 |
Family
ID=9841936
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB789925A Expired GB250379A (en) | 1925-03-24 | 1925-03-24 | Improvements in drilling machines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB250379A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2604127A (en) * | 1948-04-20 | 1952-07-22 | Grzybowski John | Rotary and reciprocating tool operating machine |
-
1925
- 1925-03-24 GB GB789925A patent/GB250379A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2604127A (en) * | 1948-04-20 | 1952-07-22 | Grzybowski John | Rotary and reciprocating tool operating machine |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2454372A (en) | Drill and drill jig bushing carrier attachment | |
GB361145A (en) | Multiple tool head for drilling, boring and like machine tools | |
GB551065A (en) | Improvements in milling cutters and the like tools and in chucks or holders therefor | |
US2172070A (en) | Chuck | |
US2426124A (en) | Drill press attachment | |
GB510482A (en) | Improvements in rivets and tools for removing rivets | |
GB250379A (en) | Improvements in drilling machines | |
GB248643A (en) | Improved apparatus for drilling wood, metal and the like | |
US1987504A (en) | Tool holder | |
GB475983A (en) | Improvements in and relating to tool holding chucks | |
US748398A (en) | Drill-chuck. | |
US2374725A (en) | Chuck | |
US431107A (en) | Apparatus for drilling | |
US1899843A (en) | Tool holder | |
US2280299A (en) | Chuck | |
GB303410A (en) | Improvements in chucks for holding tools, workpieces or the like | |
GB591501A (en) | Turret-spindle metal cutting machines | |
GB437388A (en) | Improvements in chucks or tool-holders for drilling machines, lathes and the like | |
GB164228A (en) | Improvements in or relating to devices for gripping or holding the work in drilling | |
US2950638A (en) | Drill press attachment | |
GB656354A (en) | Improvements in centring tools for lathes and like machines | |
GB190500517A (en) | Improvements in Chucks, particularly adapted for use with Drills | |
US2606463A (en) | Faucet drill and faucet seat reamer | |
US1669137A (en) | Tool holder | |
US2061777A (en) | Lathe |