US102753A - Improvement in adjustable watch-keys - Google Patents
Improvement in adjustable watch-keys Download PDFInfo
- Publication number
- US102753A US102753A US102753DA US102753A US 102753 A US102753 A US 102753A US 102753D A US102753D A US 102753DA US 102753 A US102753 A US 102753A
- Authority
- US
- United States
- Prior art keywords
- jaws
- keys
- improvement
- watch
- tube
- 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
- 235000018185 Betula X alpestris Nutrition 0.000 description 1
- 235000018212 Betula X uliginosa Nutrition 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 210000003739 neck Anatomy 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B13/00—Spanners; Wrenches
- B25B13/10—Spanners; Wrenches with adjustable jaws
- B25B13/28—Spanners; Wrenches with adjustable jaws the jaws being pivotally movable
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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
- Y10T279/17231—Pivoted jaws
- Y10T279/17264—Fixed cam and moving jaws
Definitions
- Patented May 1o, 1870' Patented May 1o, 1870'.
- My present invention is an improvement on the keys for which I have obtainedA Letters Patent bearing date, respectively, November 12, 1867, and April 13, 1869;
- Thev improvement contemplates producing a key that shall be simpler in construction, less liable to be ⁇ come injured or broken, and may be more easily and quickly operated, as well as more economically manufactured. j
- vA represents a short tube, in which the jaws B slide, and which may be provided with ring projections or collars for convenience in holding and operating the instrument.
- B are the jaws, the inner surface of the outer ends of which arenotched upon their inner sides, to receive and grasp the arbor ot' the. watch or other object to beheld.
- the jaws B get gradually thinner from' the shoulders of their outer ends to their necks, or their enlargement at their inner ends 5 but their outer surfaces are so formed as to be always the arc of a circle in,4 theircross-'section', wherever saidcross-section be made.
- the jaws B may be made in two pieces, secured to 'each' other by-a-1rivet passing transversely through their inner ends@
- the thinner part, of the jaws B is made so thin, and is ⁇ so formed, that. its .elasticity will always hold the outer surfaces pf Ysaid jaws ⁇ pressed against the inner 'surface oftheitubc A, so that the jaws will open au- 'tomaticallyras they are forced ont of the said tube A,
- C is a stay-pin, which passes transversely through.
- Knobs, heads, or slides may be formed -npon or. attached to the ends ,of the pin O, to enable it to be used for pushing the jaws B out of the tube A, and drawing theminto snid tube; the main object of the pin O being to resist the turning pressure upon the jaws when the key is being used.
- the improved watch-key consisting of the case A, provided with'opposite longitudinal slots, in which the stay-pin O slides, the same passingtransversely through the slot in the spring-jaws B B, (riveted together at 'their inner ends, and made semicircular in cross-section,) all arranged as specified, whereby the pin supports the strain when the key is being-used.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Description
J. s, BIRCH.
Watch Key.
Patented May 1o, 1870'.
- No.A 102,753;
www
Ny PETERS. PNOTO "[HCGRAPMER, WASHINGTON. B C.
drilled States @met (tilt-ire.
JOHN S. BIRCH, OF NEW YORK, N. Y'.
Lam-8 Patent No, 102,753, lated Mayflo, 1ero.
IMPROVEMENT IN ADJUSTABLE WATCH-KEYS.
The Schedule referred to in these Letters Patent and making part of the same.
ing fetch-Keys; and I. do hereby declare that the followingjs a full, clear, and exact description thereof,-
Whchxwill enable others skilled in the art to make and use the same, reference being. had to the accompanying,drawingpf'orming part of this specification, in
which- Figure 1 is a side view -of my improved watch-key. vFigure 2 is an enlarged longitudinal section of the same.
Similar letters of reference indicate -corresponding parts.
My present invention is an improvement on the keys for which I have obtainedA Letters Patent bearing date, respectively, November 12, 1867, and April 13, 1869; and
Thev improvement contemplates producing a key that shall be simpler in construction, less liable to be` come injured or broken, and may be more easily and quickly operated, as well as more economically manufactured. j
vA represents a short tube, in which the jaws B slide, and which may be provided with ring projections or collars for convenience in holding and operating the instrument.
B are the jaws, the inner surface of the outer ends of which arenotched upon their inner sides, to receive and grasp the arbor ot' the. watch or other object to beheld.
The jaws B get gradually thinner from' the shoulders of their outer ends to their necks, or their enlargement at their inner ends 5 but their outer surfaces are so formed as to be always the arc of a circle in,4 theircross-'section', wherever saidcross-section be made.
The jaws B may be made in two pieces, secured to 'each' other by-a-1rivet passing transversely through their inner ends@ The thinner part, of the jaws B is made so thin, and is `so formed, that. its .elasticity will always hold the outer surfaces pf Ysaid jaws `pressed against the inner 'surface oftheitubc A, so that the jaws will open au- 'tomaticallyras they are forced ont of the said tube A,
and will close as they are drawn back into said tube. j
In case the jaws B are hinged at their inner ends, a small spring should be placed between them of sufcient strength to force them apart as they move out of the tube A.
C is a stay-pin, which passes transversely through.
the jaws B, and through a slot in the tube A.
Knobs, heads, or slides may be formed -npon or. attached to the ends ,of the pin O, to enable it to be used for pushing the jaws B out of the tube A, and drawing theminto snid tube; the main object of the pin O being to resist the turning pressure upon the jaws when the key is being used.
Having thus described my invention,
What I claim asne\v, and desire to secure by Letters Patent, is
The improved watch-key, consisting of the case A, provided with'opposite longitudinal slots, in which the stay-pin O slides, the same passingtransversely through the slot in the spring-jaws B B, (riveted together at 'their inner ends, and made semicircular in cross-section,) all arranged as specified, whereby the pin supports the strain when the key is being-used.
The above specification of my yinvention ysigned by me this 25th day of June, 1869.
` J. S. BIRCH.
Witnesses:
FRANK BLOCKLEY, JAMES T. GRAHAM.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US102753A true US102753A (en) | 1870-05-10 |
Family
ID=2172240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US102753D Expired - Lifetime US102753A (en) | Improvement in adjustable watch-keys |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US102753A (en) |
-
0
- US US102753D patent/US102753A/en not_active Expired - Lifetime
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