US3899A - Single-twist - Google Patents
Single-twist Download PDFInfo
- Publication number
- US3899A US3899A US3899DA US3899A US 3899 A US3899 A US 3899A US 3899D A US3899D A US 3899DA US 3899 A US3899 A US 3899A
- Authority
- US
- United States
- Prior art keywords
- auger
- twist
- hole
- chester
- clark
- 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
- 238000000034 method Methods 0.000 description 4
- 238000009877 rendering Methods 0.000 description 2
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
- B23B51/0473—Details about the connection between the driven shaft and the tubular cutting part; Arbors
-
- 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
- Y10T408/895—Having axial, core-receiving central portion
-
- 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
- Y10T408/898—Helical ribbon Tool
Definitions
- the inner surfaces ofthe twist of the This form is objectionable, as it breaks the chip and causes the fragments to work in between the outside of the auger, and the inner surface of the hole, binding and clogging the auger and rendering it necessary, frequently to withdraw it in the process of boring for the purpose of clearing out the chips.
- the auger is also liable to be injured by such frequent removal from the hole when clogged the pressure being such as to act upon the twist and derange it.
- My improvement consists in making the upper inner surface A of the twist of the auger B, concave so that ⁇ an auger of any desirable length works easily and freely, raising the chip continuously through the cavity to the top of the hole without breaking the chip or leaving any fragments to work in between the outside of the auger and inner surface of the hole and thereby overcoming entirely the difficulty of clogging, and the consequent necessity of its being withdrawn to clear it during the process of boring, the hole is smooth and accurate and the time and labor of the operator is very much abridged.
- This principle may be applied to the bit and gimlet.
- A being the inner concave surface C, the inner conveX surface and D the outer surface.
- Figure l in the drawings represents the auger.
- Fig. 2 represents the form of the material for the auger before it is twisted and
- Fig. 3 represents a section of the said material.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Belt Conveyors (AREA)
Description
`COIIII'HOH auger 2116 CODVGX.
UNITED sTATEs PATENT oEEIoE.
WILLIAM N. CLARK, OF CHESTER, CONNECTICUT.
SINGLE-TWIST AUGER, G-IMLET, &c.
Specification of Letters Patent No. 3,899, dated January 31, 1845.
To all whom it may concern.'
Be it known that I, VILLTAM N. CLARK, of Chester, in the county of Middlesex and the State of Connecticut, have invented a new and useful Improvement in the Auger commonly known as the Single-Twist ShipAuger, and that the following is a full and exact description of the saine.
I refer to the drawings accompanying this specification as explanatory of the same.
The inner surfaces ofthe twist of the This form is objectionable, as it breaks the chip and causes the fragments to work in between the outside of the auger, and the inner surface of the hole, binding and clogging the auger and rendering it necessary, frequently to withdraw it in the process of boring for the purpose of clearing out the chips. The auger is also liable to be injured by such frequent removal from the hole when clogged the pressure being such as to act upon the twist and derange it.
My improvement consists in making the upper inner surface A of the twist of the auger B, concave so that `an auger of any desirable length works easily and freely, raising the chip continuously through the cavity to the top of the hole without breaking the chip or leaving any fragments to work in between the outside of the auger and inner surface of the hole and thereby overcoming entirely the difficulty of clogging, and the consequent necessity of its being withdrawn to clear it during the process of boring, the hole is smooth and accurate and the time and labor of the operator is very much abridged. This principle may be applied to the bit and gimlet. A being the inner concave surface C, the inner conveX surface and D the outer surface.
Figure l, in the drawings represents the auger. Fig. 2, represents the form of the material for the auger before it is twisted and Fig. 3, represents a section of the said material.
Wlhat I claim as my improvement, and desire 1to secure by Let-ters Patent, is-
auger, the bit and gimlet, with the upper inner surface A of the twist concave as above described and for the object set forth.
Chester, Conn., November 4l, A. D. 1844.
WILLIAM N. CLARK.
Titnesses ELY VARNER, JONATHAN WARNER.
ne'mode of making the single twist ship
Publications (1)
Publication Number | Publication Date |
---|---|
US3899A true US3899A (en) | 1845-01-31 |
Family
ID=2064200
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US3899D Expired - Lifetime US3899A (en) | Single-twist |
Country Status (1)
Country | Link |
---|---|
US (1) | US3899A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3683891A (en) * | 1970-06-26 | 1972-08-15 | Marshall Eskridge | Tissue auger |
-
0
- US US3899D patent/US3899A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3683891A (en) * | 1970-06-26 | 1972-08-15 | Marshall Eskridge | Tissue auger |
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