GB102303A - Improvements in or relating to Boring and Drilling Tools. - Google Patents
Improvements in or relating to Boring and Drilling Tools.Info
- Publication number
- GB102303A GB102303A GB383116A GB383116A GB102303A GB 102303 A GB102303 A GB 102303A GB 383116 A GB383116 A GB 383116A GB 383116 A GB383116 A GB 383116A GB 102303 A GB102303 A GB 102303A
- Authority
- GB
- United Kingdom
- Prior art keywords
- centre
- cutters
- cutter
- hole
- halves
- 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
- B23B51/00—Tools for drilling machines
- B23B51/04—Drills for trepanning
- B23B51/0486—Drills for trepanning with lubricating or cooling equipment
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Abstract
102,303. Allen, W. G. March 15, 1916. Drills of the adjustable-cutter type have the shank divided longitudinally into halves fluted at S and secured together by screws G, which also clamp the cutters arranged in recesses in the halves. The cutter A only slightly overlaps the axis, and the cutters B, C, D, E, F, in the order named, make overlapping cuts and are mounted at increasing inclinations from the centre outwards. By varying the angle of the cutting- edges and the projection of the cutters, the diameter of hole drilled and the character of the bottom of the hole are controlled, for example to produce a stepped hole. An oil conduit O<1> is provided along the centre of the drill and delivers on each side of the centre cutter.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB383116A GB102303A (en) | 1916-03-15 | 1916-03-15 | Improvements in or relating to Boring and Drilling Tools. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB383116A GB102303A (en) | 1916-03-15 | 1916-03-15 | Improvements in or relating to Boring and Drilling Tools. |
Publications (1)
Publication Number | Publication Date |
---|---|
GB102303A true GB102303A (en) | 1916-11-30 |
Family
ID=32244563
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB383116A Expired GB102303A (en) | 1916-03-15 | 1916-03-15 | Improvements in or relating to Boring and Drilling Tools. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB102303A (en) |
-
1916
- 1916-03-15 GB GB383116A patent/GB102303A/en not_active Expired
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