US148053A - Improvement in awl-hafts - Google Patents
Improvement in awl-hafts Download PDFInfo
- Publication number
- US148053A US148053A US148053DA US148053A US 148053 A US148053 A US 148053A US 148053D A US148053D A US 148053DA US 148053 A US148053 A US 148053A
- Authority
- US
- United States
- Prior art keywords
- awl
- hafts
- brace
- bolt
- 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
- 239000002023 wood Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 239000010985 leather Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000009877 rendering Methods 0.000 description 2
- 230000036633 rest Effects 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
- B23B31/1207—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving obliquely to the axis of the chuck in a plane containing this axis
- B23B31/1253—Jaws movement actuated by an axially movable member
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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
- Y10T279/00—Chucks or sockets
- Y10T279/17—Socket type
- Y10T279/17564—Loose jaws
- Y10T279/17572—Moving-cam actuator
- Y10T279/17581—Threaded cam sleeve
Definitions
- My invention relates to that class of awlhafts in which the awl is secured or held in a split socket; and consists in a base-bolt provided with a shoulder and serrated brace, as hereinafter more fully set forth, the object being to prevent loosening of the bolt and splitting of the handle, which is very liable to occur when the brace is not used.
- A is the body or handle, provided with the leather hammer-rings D at its upper end, the opposite oi ⁇ lower end being turned dish-shaped piece of metal, provided with a central aperture, through which the bolt- C passes, and a serrated or toothed rim, as shown in Fig. 2.
- the parts F, B, C, A, and l) are all constructed, arranged, and operate as usual in hafts of this character, except that the bolt C is provided with-a shoulder immediately below its screw, which rests upon the serrated brace E.
- the teeth on the rim of the brace prevent it from becoming loose, or rotating or turning on the bolt, and enables it to be forced farther into the wood than a plain brace can be forced when the bolt is driven to its proper position in the haft, as shown in Fig. l.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Adornments (AREA)
Description
T1 HARRINGTN.
Awi-Hafts.
N 148 053 Patented March3.1874. .0. 4
UNITED STATES PATENT OFFICE.
THEODORE 4HABRINGTON7 OF SOUTHBBIDGE, MASSACHUSETTS.
IMPRCVEMENT IN AWL-HAFTS.
Specification forming part of Letters Patent No. 148,053, dated March 3, 1874; application tiled January 19, 1874.
To all whom it may concern:
Be it known that I, THEoDoRE EARRING- TON, of Southbridge, in the county of Worcester, State of Massachusetts, have invented a certain new and useful Improvement in Awl- Hafts, of which the following is a description sufficiently full, clear, and exact to enable any person skilled in the art or science to which my invention appertains to make and use the same, reference being had to the accompanying drawing forming a part of this specification, in which-` Figure 1 is a vertical section of my improved awl-haft. Fig. 2 is a view of the serrated brace.
Like letters refer to like parts in the difierent figures of the drawing.
My invention relates to that class of awlhafts in which the awl is secured or held in a split socket; and consists in a base-bolt provided with a shoulder and serrated brace, as hereinafter more fully set forth, the object being to prevent loosening of the bolt and splitting of the handle, which is very liable to occur when the brace is not used.
In Fig. 1, A is the body or handle, provided with the leather hammer-rings D at its upper end, the opposite oi` lower end being turned dish-shaped piece of metal, provided with a central aperture, through which the bolt- C passes, and a serrated or toothed rim, as shown in Fig. 2. The parts F, B, C, A, and l) are all constructed, arranged, and operate as usual in hafts of this character, except that the bolt C is provided with-a shoulder immediately below its screw, which rests upon the serrated brace E. The teeth on the rim of the brace prevent it from becoming loose, or rotating or turning on the bolt, and enables it to be forced farther into the wood than a plain brace can be forced when the bolt is driven to its proper position in the haft, as shown in Fig. l.
From the foregoing, it will be seen that a 4prying or lateral strain on the awl from whatever cause will fall largely upon the bolt C, which, in hafts of the ordinary construction, soon becomes loose in the handle A, causing it to split and rendering it worthless. In my improved haft this is obviated by the brace E, which, being firmly embedded inthe wood of the handle, relieves it of all lateral strain brought to bear through the bolt C, thus preventing the handle from splitting.
Having thus described my invention, what I claim is An awl haft provided with the serrated brace E, substantially as and for the. purpose described. i
TH EODORE HARRINGTON.
FVitnesses -E THEoDoRE JEROME HAR-RINGTON, ISAAC P. HYDE.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US148053A true US148053A (en) | 1874-03-03 |
Family
ID=2217466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US148053D Expired - Lifetime US148053A (en) | Improvement in awl-hafts |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US148053A (en) |
-
0
- US US148053D patent/US148053A/en not_active Expired - Lifetime
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