US3014A - Improvement sn awl-hafts - Google Patents
Improvement sn awl-hafts Download PDFInfo
- Publication number
- US3014A US3014A US3014DA US3014A US 3014 A US3014 A US 3014A US 3014D A US3014D A US 3014DA US 3014 A US3014 A US 3014A
- Authority
- US
- United States
- Prior art keywords
- awl
- holder
- handle
- hafts
- improvement
- 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
- 239000010985 leather Substances 0.000 description 12
- 210000001699 lower leg Anatomy 0.000 description 4
- 241001622561 Hasora badra Species 0.000 description 2
- 241000198061 Illicium henryi Species 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000002459 sustained Effects 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/32—Hand-held perforating or punching apparatus, e.g. awls
Description
UNITED STATES PATENT OFFICEa EDWIN MARTIN, OF GRAFTON, MASSACHUSETTS.
IMPROVEVI ENT IN AWL-HAFTS.
Specification forming part of Letters Patent No. 3,014, dated March 21, 1843.
To all whom it may concern:
Be it known that I, EDWIN MARTIN, of Grafton, in the county of Worcester and State of Massachusetts, have invented a new and useful Improvement in Awl-Hafts; and I do hereby declare that the following specification, taken in connection with the accompanying drawings thereof, constitutes a full and exact description of the same.
Figure l of the drawings above mentioned is au external view of the instrument. Fig. 2
is a central and vertical section of the same,
taken in a plane supposed to be at right angies to that on which Fig. 1 is delineated. Fig. 3 represents the awl-holder and helical retracting-spring as removed from the interior of the exterior case or handle. Fig. 4 is atop View of the article, and Fig. 5 is a representation ofthe bottom or lower end.
The instrument, as represented in the drawings, consists of au awl-holder, A, Figs. 3, 4, which is ited in the hollow handle B, so as to freely move up and down therein, or in a suitable chamber, a b c, formed in said handle, as seen in Fig. 2. By inspection of the figure it will be observed that there are three cylindrical divisions, a b c, in this chamber, a cylindrical guide or shoulder-piece, d d, surrounding the awl-holder moving in the upper division, c. The foot of the awlho1der is sustained by the lower compartment, c, which is of the same diameter as that of the lower part of the awl-holder. The central division, b, is of larger diameter than that of the lowest,c,or is of sufficient size to receive and permit the free action of a helical spring, e e, surrounding the shank of the awl-holder.
The lower end of the helical springe e is supported on a shoulder, ff, Fig. 2, of the handle B, while the upper end thereof bears against the under side of the shoulder-piece or guide d d. The shank of the awl g is inserted in thelower end of the holder A, wherein it is confined by a screw or in any convenient manner, The awl passes through a circular aperture, h, Fig. 2, ofthe handle B and extends a short distance beyond-the handle, as seen in Figs. l and 2. The upper part of the holder A slides freely through a head, z' fi, screwed into the top of the handle B, the top of the shoulder-piece d d abutting against the under side of the head t' i when it is forced upward by the retroactive power of the spring e e. The top of the holder B, which receives the blows leather, k, suitably fixed thereon, as seen in the drawings,and the holder is prevented from turning around horizontally by a screw, Z, Fig. 1, which passes through the handle B and en'- ters a vertical groove, m, Fig. 3, cut in the side of the upper part of the awl-holder. The foot of the handle B is a segment of a sphere, or approaches in form to one, and it has a semicircular hollow or groove, n n, formed across it, as seen in Figs. 1, 2, and 5. The object of this peculiar form of the foot and the semicircular hollow is to prevent the holes previously formed in the sole by the awl from being closed up by the blows of the hammer upon the head of the awl-holder during the operation of forming the succeeding holes in the sole or in a piece of leather. circular holder is placed over the line of the holes, and so that its sides o o, Fig. 5, shall rest on the leather on each side of the line of holes formed therein.
In using this tool the workman grasps it'in his left hand, and having placed the point of the awl upon the leather sole strikes with his hammer upon the leather top k of the awlholder, the said operation causing the awl to pierce the leather. This being accomplished, the awl is withdrawn therefrom by the retracting-power of the spring e e, Whereas when a common awl is used in the ordinary manner much labor and time are requisite to withdraw the same by hand.
Having thus described my improvements, I shall claim- 1. The combination of the awl-holder A, helical spring ee, and external case or handle, B, the Whole being constructed and operating substantially as above set forth.
2. Forming the foot of the handle or case B substantially as hereinbefore explained-that isv to say, giving to the same the shape of a segment ofa sphere-and cutting a transverse semicircular groove, n n, in the same, for the objects above specified.
In testimony that the foregoing is a true description of my said invention and improvements I have hereto set my signature this 8th day of February, 1843.
EDWIN MARTIN.
Vitncsses:
SAMUEL VVooD, I. HENRY Woon.
of the hammer, is protected by a piece of The semiv
Publications (1)
Publication Number | Publication Date |
---|---|
US3014A true US3014A (en) | 1843-03-21 |
Family
ID=2063309
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US3014D Expired - Lifetime US3014A (en) | Improvement sn awl-hafts |
Country Status (1)
Country | Link |
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US (1) | US3014A (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011511242A (en) * | 2008-01-28 | 2011-04-07 | テトゥラ・ラバル・ホールディングス・アンド・ファイナンス・ソシエテ・アノニム | Gas burner |
JP2011120869A (en) * | 2009-12-14 | 2011-06-23 | Medison Co Ltd | Ultrasonic three-dimensional image restoring method and ultrasonic system for the same |
JP2012506984A (en) * | 2008-10-31 | 2012-03-22 | ロックウール・インターナショナル・アクティーゼルスカブ | Insulation products |
JP2012101411A (en) * | 2010-11-09 | 2012-05-31 | Sumitomo Rubber Ind Ltd | Vulcanization molding device |
JP2012524896A (en) * | 2009-04-21 | 2012-10-18 | アストリウム・リミテッド | Radar system |
JP2013502409A (en) * | 2009-11-17 | 2013-01-24 | コングック ユニヴァーシティ インダストリアル コーペレーション コーポレーション | Method for producing novel glycolipoprotein gintonin from carrot, and novel glycolipoprotein gintonin produced by the method |
JP2013523256A (en) * | 2010-03-26 | 2013-06-17 | ボストン サイエンティフィック ニューロモデュレイション コーポレイション | Method for controlled stop of an implantable medical device |
JP2013175226A (en) * | 2007-08-27 | 2013-09-05 | Nec Europe Ltd | Method and system for executing delegation of resource |
JP5605967B1 (en) * | 2013-12-18 | 2014-10-15 | 株式会社日本自動調節器製作所 | Eccentric butterfly valve |
JP5629044B1 (en) * | 2013-03-26 | 2014-11-19 | 株式会社インタニヤ | Panoramic pan head and photographing system using the pan head |
JP5631436B2 (en) * | 2013-04-09 | 2014-11-26 | ウィンボンド エレクトロニクス コーポレーション | Semiconductor memory device |
-
0
- US US3014D patent/US3014A/en not_active Expired - Lifetime
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013175226A (en) * | 2007-08-27 | 2013-09-05 | Nec Europe Ltd | Method and system for executing delegation of resource |
JP2011511242A (en) * | 2008-01-28 | 2011-04-07 | テトゥラ・ラバル・ホールディングス・アンド・ファイナンス・ソシエテ・アノニム | Gas burner |
JP2012506984A (en) * | 2008-10-31 | 2012-03-22 | ロックウール・インターナショナル・アクティーゼルスカブ | Insulation products |
JP2012524896A (en) * | 2009-04-21 | 2012-10-18 | アストリウム・リミテッド | Radar system |
JP2013502409A (en) * | 2009-11-17 | 2013-01-24 | コングック ユニヴァーシティ インダストリアル コーペレーション コーポレーション | Method for producing novel glycolipoprotein gintonin from carrot, and novel glycolipoprotein gintonin produced by the method |
JP2011120869A (en) * | 2009-12-14 | 2011-06-23 | Medison Co Ltd | Ultrasonic three-dimensional image restoring method and ultrasonic system for the same |
JP2013523256A (en) * | 2010-03-26 | 2013-06-17 | ボストン サイエンティフィック ニューロモデュレイション コーポレイション | Method for controlled stop of an implantable medical device |
JP2012101411A (en) * | 2010-11-09 | 2012-05-31 | Sumitomo Rubber Ind Ltd | Vulcanization molding device |
JP5629044B1 (en) * | 2013-03-26 | 2014-11-19 | 株式会社インタニヤ | Panoramic pan head and photographing system using the pan head |
JP5631436B2 (en) * | 2013-04-09 | 2014-11-26 | ウィンボンド エレクトロニクス コーポレーション | Semiconductor memory device |
JP5605967B1 (en) * | 2013-12-18 | 2014-10-15 | 株式会社日本自動調節器製作所 | Eccentric butterfly valve |
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