US280026A - Spoon boring-bit - Google Patents
Spoon boring-bit Download PDFInfo
- Publication number
- US280026A US280026A US280026DA US280026A US 280026 A US280026 A US 280026A US 280026D A US280026D A US 280026DA US 280026 A US280026 A US 280026A
- Authority
- US
- United States
- Prior art keywords
- bit
- spoon
- boring
- cutter
- forstner
- 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
- 239000002023 wood Substances 0.000 description 6
Images
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
- B23B27/007—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor for internal turning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G15/00—Boring or turning tools; Augers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G17/00—Manually-operated tools
- B27G17/04—Spokeshaves; Scrapers
-
- 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
- Y10T408/89—Tool or Tool with support
Definitions
- My invention relates to spoonbits in which the center cutter is set back from the lower end of the bit; and the objects of my improvements are, first, to cut a smooth hole; second, to out off the grain of the wood, and then by means of the center cutter to cut up the core and bring the chips up out of the hole; third, to bore holes in narrow pieces and near the edge without splitting the wood.
- Figure 1 is a birds-eye view of the entire bit.
- Fig. 2 is a side view of the bit, showing the side cutter, A.
- Fig. 3 is a section at a: :0
- the cutter B is in the concave portion of the spoon or pod of the bit and a little back from above the end of the bit.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Earth Drilling (AREA)
Description
(No Model.)
B. FORSTNER.
SPOON BORING BIT.
NO. 280,026. Patented 111116 26, 1883.
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UNITED STATES PATENT OFFICE.
BENJAMIN FORSTNER, OF SALEM, ASSIGNOR OF ONE-HALF TO ADDISON C.
GIBBS, OF PORTLAND, OREGON.
SPOON BORING-BIT.
SPECIFICATION forming part of Letters Patent No. 280,026, dated June 26, 1883. Application filed March 6, 1883. (No model.)
To all whom it may concern Be it known that I, BENJAMIN FORSTNER, a citizen of the United States, residing at Salem, in the county of Marion and State of Oregon, have invented certain new and useful Improvements in Spoon Bits, by which the speed, neatness', and boring capacity of the bit are increased without splitting the wood; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same.
My invention relates to spoonbits in which the center cutter is set back from the lower end of the bit; and the objects of my improvements are, first, to cut a smooth hole; second, to out off the grain of the wood, and then by means of the center cutter to cut up the core and bring the chips up out of the hole; third, to bore holes in narrow pieces and near the edge without splitting the wood. I attain these objects by means of a spoon-bit with a center cutter set a little back from the lower or cutting end of the bit, as illustrated in the accompanying drawings, in which Figure 1 is a birds-eye view of the entire bit. Fig. 2 is a side view of the bit, showing the side cutter, A. Fig. 3 is a section at a: :0
of the bit, showing the center cutter at B and side cutter at A.
The cutter B is in the concave portion of the spoon or pod of the bit and a little back from above the end of the bit.
' BENJ. FORSTNER.
Witnesses: I
DAVID EARLY, SETH R. HAMMER.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US280026A true US280026A (en) | 1883-06-26 |
Family
ID=2349243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US280026D Expired - Lifetime US280026A (en) | Spoon boring-bit |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US280026A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140358691A1 (en) * | 2013-06-03 | 2014-12-04 | Cloudwear, Inc. | System for selecting and receiving primary and supplemental advertiser information using a wearable-computing device |
| US20170259352A1 (en) * | 2014-09-10 | 2017-09-14 | Kyoraku Co., Ltd. | Method of machining workpiece and boring drill |
-
0
- US US280026D patent/US280026A/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140358691A1 (en) * | 2013-06-03 | 2014-12-04 | Cloudwear, Inc. | System for selecting and receiving primary and supplemental advertiser information using a wearable-computing device |
| US20170259352A1 (en) * | 2014-09-10 | 2017-09-14 | Kyoraku Co., Ltd. | Method of machining workpiece and boring drill |
| US10213846B2 (en) * | 2014-09-10 | 2019-02-26 | Kyoraku Co., Ltd. | Method of machining workpiece and boring drill |
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