US131279A - Kick kavanag-h - Google Patents
Kick kavanag-h Download PDFInfo
- Publication number
- US131279A US131279A US131279DA US131279A US 131279 A US131279 A US 131279A US 131279D A US131279D A US 131279DA US 131279 A US131279 A US 131279A
- Authority
- US
- United States
- Prior art keywords
- auger
- lip
- center
- cutting
- kavanag
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/10—Bits for countersinking
- B23B51/108—Bits for countersinking having a centering drill
-
- 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
- Y10T408/905—Having stepped cutting edges
- Y10T408/906—Axially spaced
Definitions
- ' having a single twist and it consists in a single-twist auger having a center entering cutting-point, a diagonal cuttinglip extending from the center to the circumference of the l auger, and an' upright circumferential cuttinglip, as hereinafter described.
- Figure 1 represents a view of the improved auger-bit.
- Fig. 2 is an end View enlarged.
- Fig. 3 is a side view enlarged, showing the cutting-lip.
- A is the auger.
- B is the shank.
- G is the improved cutting-lip. This lip extends from the center of the auger back to the circumference at an angle of about forty-five degrees to the axis of motion, sloping upward, and forming an obtuse angle with and terminating in an upright circumferential cutting-lip, D, the edge of which is parallel with the axis of the auger.
- E is the center entering and cutting point of the lip G, and the center of the auger. This auger, it will be seen, commences cutting at the center and consequently it does not tear but cuts the grain of the wood smooth 1y, both in commencing and finishing a hole.
- Augers with lips placed at right angles with the axial line tear the wood in commencing and in finishing a hole through apiece of timber; besides, they are more likely to clog and require more power to force them through the wood than it does with my iinprot ed lip, constructed with the center entering and cutting point E.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Crushing And Pulverization Processes (AREA)
Description
pi KAvANAGH. Improvement in Augers.
N0. 131,279. M Patehted Sap-10,1872.
I Tux a PATRICK KAVANAGH, OF CANAR-SIE, NEW YORK.
IMPRQVEMENT IN AUGERS.
Specification forming part of Letters Patent No. 131,52'7%; dated September 10, 1872.
' having a single twist and it consists in a single-twist auger having a center entering cutting-point, a diagonal cuttinglip extending from the center to the circumference of the l auger, and an' upright circumferential cuttinglip, as hereinafter described.
In the accompanying drawing, Figure 1 represents a view of the improved auger-bit. Fig. 2 is an end View enlarged. Fig. 3 is a side view enlarged, showing the cutting-lip.
Similar letters of reference indicate corresponding parts.
A is the auger. B is the shank. G is the improved cutting-lip. This lip extends from the center of the auger back to the circumference at an angle of about forty-five degrees to the axis of motion, sloping upward, and forming an obtuse angle with and terminating in an upright circumferential cutting-lip, D, the edge of which is parallel with the axis of the auger. E is the center entering and cutting point of the lip G, and the center of the auger. This auger, it will be seen, commences cutting at the center and consequently it does not tear but cuts the grain of the wood smooth 1y, both in commencing and finishing a hole.
Augers with lips placed at right angles with the axial line tear the wood in commencing and in finishing a hole through apiece of timber; besides, they are more likely to clog and require more power to force them through the wood than it does with my iinprot ed lip, constructed with the center entering and cutting point E.
Having thus described myinvention, Iclaim as new and desire to secure by Letters Patent- A single-twist auger having the center entering and cutting point E, inclined floor-lip O, and upright circumferential lip D, constructed in the manner substantially as de- Witnesses:
JAMES T. GRAHAM, .T. B. Mosnna.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US131279A true US131279A (en) | 1872-09-10 |
Family
ID=2200696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US131279D Expired - Lifetime US131279A (en) | Kick kavanag-h |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US131279A (en) |
-
0
- US US131279D patent/US131279A/en not_active Expired - Lifetime
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