US180561A - Improvement in expanding metal-drills - Google Patents
Improvement in expanding metal-drills Download PDFInfo
- Publication number
- US180561A US180561A US180561DA US180561A US 180561 A US180561 A US 180561A US 180561D A US180561D A US 180561DA US 180561 A US180561 A US 180561A
- Authority
- US
- United States
- Prior art keywords
- cutters
- drills
- improvement
- stock
- expanding metal
- 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 - Lifetime
Links
- 230000000875 corresponding Effects 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
- B23B29/03—Boring heads
- B23B29/034—Boring heads with tools moving radially, e.g. for making chamfers or undercuttings
- B23B29/03403—Boring heads with tools moving radially, e.g. for making chamfers or undercuttings radially adjustable before starting manufacturing
- B23B29/03425—Boring heads with tools moving radially, e.g. for making chamfers or undercuttings radially adjustable before starting manufacturing by means of gears and racks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/83—Tool-support with means to move Tool relative to tool-support
- Y10T408/85—Tool-support with means to move Tool relative to tool-support to move radially
- Y10T408/856—Moving means including pinion engaging rack-like surface of Tool
Definitions
- the invention consists of two cutters fixed in the stock to slide forward and backward transversely, the cutters being slotted obliquely and reversely to each other, and having the fasteningbolt by which they are secured to the stock fitted in said slots, and also fitted in a vertical slot in the stock, so that by shifting the bolt along the slots in one direction the cutters will be adjusted outward by shifting the bolt the other way they will be adjusted inward.
- Figure l is a side elevation of my improved drill.
- Fig. 2 is a section on line w of Fig. 1.
- Figs. 3 and 5 are side elevations of the cutters, and
- Fig. 4 is a side elevation of the l stock without the cutters.
- the stock has a wide transverse groove, a, on each side, in which the cutters t, and a slot, b, inV which the bolt its, and each cutter has an oblique slot, d, which the bolt also passes through, the slots being arranged reversely to each other as to their inclination, so that it pushes the cutters outward when it is shifted downward, and draws them inward when it is shifted upward.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Description
UNITED STATES PATENT OEEIGEI PATRICK DUFFY, OF NEW BEDFORD, MASSACHUSETTS, ASSIGNOR TO HIMSELF AND JAMES F. POWERS, OF SAME PLACE.
IMPROVEMENT IN EXPANDING METAL-DRILLS.
Specification forming part of Letters Patent N o. l 80,561, dated August 1, 1876; application filed July 11, 1876.
To all whom it may concern:
Be it known that I, PATRICK DUEEY, of New Bedford, in the county of Bristol and State of Massachusetts, have invented a new and Improved Expanding Drill, of which the following is a specification:
The invention consists of two cutters fixed in the stock to slide forward and backward transversely, the cutters being slotted obliquely and reversely to each other, and having the fasteningbolt by which they are secured to the stock fitted in said slots, and also fitted in a vertical slot in the stock, so that by shifting the bolt along the slots in one direction the cutters will be adjusted outward by shifting the bolt the other way they will be adjusted inward.
Figure l is a side elevation of my improved drill. Fig. 2 is a section on line w of Fig. 1. Figs. 3 and 5 are side elevations of the cutters, and Fig. 4 is a side elevation of the l stock without the cutters.
Similar letters of reference indicate corresponding parts.
4A represents the stock B and C, the cutters, and D the fastening and adjusting bolt. The stock has a wide transverse groove, a, on each side, in which the cutters t, and a slot, b, inV which the bolt its, and each cutter has an oblique slot, d, which the bolt also passes through, the slots being arranged reversely to each other as to their inclination, so that it pushes the cutters outward when it is shifted downward, and draws them inward when it is shifted upward.
, Having' thus described my inventiomlclaim as new and desire to secure by Letters Patent- The combination of the stock A, having the grooves a and slot b, cutters B C, having the reverscly-inclined slots d, and the fastening and adjusting bolt D, substantially as specified.
PATRICK DUFFY.
Publications (1)
Publication Number | Publication Date |
---|---|
US180561A true US180561A (en) | 1876-08-01 |
Family
ID=2249967
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US180561D Expired - Lifetime US180561A (en) | Improvement in expanding metal-drills |
Country Status (1)
Country | Link |
---|---|
US (1) | US180561A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4039295A (en) * | 1975-04-12 | 1977-08-02 | Erwin Hochmuth | Groove cutter |
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0
- US US180561D patent/US180561A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4039295A (en) * | 1975-04-12 | 1977-08-02 | Erwin Hochmuth | Groove cutter |
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