US211918A - Improvement in watch and clock keys - Google Patents
Improvement in watch and clock keys Download PDFInfo
- Publication number
- US211918A US211918A US211918DA US211918A US 211918 A US211918 A US 211918A US 211918D A US211918D A US 211918DA US 211918 A US211918 A US 211918A
- Authority
- US
- United States
- Prior art keywords
- watch
- clock
- key
- improvement
- pipe
- 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
- 210000001699 lower leg Anatomy 0.000 description 16
- 210000003811 Fingers Anatomy 0.000 description 2
- 210000003813 Thumb Anatomy 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
Images
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B3/00—Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously
- G04B3/006—Mechanical winding up; winding up with special equipment
Definitions
- N-FETERS FHOTO-I-ITHOGRAFHER, WASHMGTOMD. O.
- This invention relates to watch orclock keys in which the shank or handle of the key is made elastic or resilient for the purpose of preventing breakage of the mainspring of the watch or clock when the mainspring is entirely wound up,the resilient shank of the key being so constructed that it will be unyielding, and will resist the force required to wind up the mainspring until the latter is entirely wound up, and then yield if the key is additionally turned.
- My invention hasfor its object to improve the construction of keys of the above-named class with respect to efficiency of operation and cheapness; and to this end it consists in the employment of a spiral spring as the shank of a watch or clock key, said spring being rigidly attached to the pipe or barrel of the key, as I will now proceed to describe.
- Figure 1 represents a side view of a watch or clock key embodying my invention.
- Fig. 2 represents a longitudinal section of the same.
- Fig. 3 represents a side view of a modification.
- a represents the pipe or barrel of a watch or clock key, the same being provided, as usual, in its outer end,with' asqua-re cavity, to fit over the winding-post of a watch or clock.
- the opposite end of the pipe is formed with a shoulder, 11, the pipe being reduced to form this shoulder.
- 0 represents the elastic or resilient shank. which is composed of a single wire, and is formed at one end to fit closely on'the reduced end of the pipe at and bear against the shoulder b.
- the end of the spring is rigidly secured to the pipe by soldering or in any desired manner. I prefer to enlarge the coils or convolutions of the spring above the end which is attached to the pipe, and mill or roughen the outer surfaces of the enlarged coils, as shown in Fig.
- the enlarged" milled portions enable the key to be easily turned by the thumb and finger of the operator.
- the outer or upper end of the spring 0 may be formed into a loop or handle, 0, as shown in Fig. 3.
- the spring is made of such strength that when the key is being turned to wind a watch or clock there will be no yielding or resilience in the shank of the key until the spring is entirelywound up and comes to a stop, when, in case the key is further rotated, the shank 0 will yield, and thus relieve the strain on the mainspring and its stops, and prevent the key from turning or slipping on the latter.
- the chief advantages of the spiral spring are, first, its cheapness and the ease with which it can be attached to the pipe; and, second, its adaptability to yield in either direction, so that its function will be the same whether the watch or clock winds to the right or to the left.
- the shank thus constructed is also flexible, so that it can be bent in either direction laterally, and thus avoid contact with the opened cover of the watch in winding.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Springs (AREA)
Description
G. E. LOMBARD.
Watch and Clock Key.
No. 211,918. Patented Feb. 4, 1879.
N-FETERS, FHOTO-I-ITHOGRAFHER, WASHMGTOMD. O.
NITED STATES PATENT FF CHARLES E. LOMBARD, OF CAMBRIDGE, ASSIGNOB 0F ON E-HALF HIS RIGHT TO CHARLES F. BROWN, OF READING, MASSACHUSETTS.
IMPROVEMENT IN WATCH AND CLOCK KEYS.
Specification forming part of Letters Patent No. 211,918, dated February 4, 1879; application filed May :24, 1878.
To all whom it may concern:
Be it known that 1, CHARLES E, LOMBARD, of Cambridge, in the county of Middlesex and State of Massachusetts, have invented certain Improvements in Watch or Clock Keys, of which the following is a specification:
This invention relates to watch orclock keys in which the shank or handle of the key is made elastic or resilient for the purpose of preventing breakage of the mainspring of the watch or clock when the mainspring is entirely wound up,the resilient shank of the key being so constructed that it will be unyielding, and will resist the force required to wind up the mainspring until the latter is entirely wound up, and then yield if the key is additionally turned.
My invention hasfor its object to improve the construction of keys of the above-named class with respect to efficiency of operation and cheapness; and to this end it consists in the employment of a spiral spring as the shank of a watch or clock key, said spring being rigidly attached to the pipe or barrel of the key, as I will now proceed to describe.
Of the drawingsforming a part of this specification, Figure 1 represents a side view of a watch or clock key embodying my invention. Fig. 2 represents a longitudinal section of the same. Fig. 3 represents a side view of a modification.
Similar letters of reference indicate correspondin g parts.
In the drawings, a represents the pipe or barrel of a watch or clock key, the same being provided, as usual, in its outer end,with' asqua-re cavity, to fit over the winding-post of a watch or clock. The opposite end of the pipe is formed with a shoulder, 11, the pipe being reduced to form this shoulder. 0 represents the elastic or resilient shank. which is composed of a single wire, and is formed at one end to fit closely on'the reduced end of the pipe at and bear against the shoulder b. The end of the spring is rigidly secured to the pipe by soldering or in any desired manner. I prefer to enlarge the coils or convolutions of the spring above the end which is attached to the pipe, and mill or roughen the outer surfaces of the enlarged coils, as shown in Fig. 1. The enlarged" milled portions enable the key to be easily turned by the thumb and finger of the operator. If desired, the outer or upper end of the spring 0 may be formed into a loop or handle, 0, as shown in Fig. 3. The spring is made of such strength that when the key is being turned to wind a watch or clock there will be no yielding or resilience in the shank of the key until the spring is entirelywound up and comes to a stop, when, in case the key is further rotated, the shank 0 will yield, and thus relieve the strain on the mainspring and its stops, and prevent the key from turning or slipping on the latter.
The chief advantages of the spiral spring are, first, its cheapness and the ease with which it can be attached to the pipe; and, second, its adaptability to yield in either direction, so that its function will be the same whether the watch or clock winds to the right or to the left. The shank thus constructed is also flexible, so that it can be bent in either direction laterally, and thus avoid contact with the opened cover of the watch in winding.
I claim as my invention- A watch or clock key composed of a pipe or barrel and a spiral spring attached thereto, and forming a flexible shank or handle, as and for the purpose specified.
In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.
CHARLES E. LOMBARD.
Witnesses:
G. F. BROWN, Gno. W. PIERCE.
Publications (1)
Publication Number | Publication Date |
---|---|
US211918A true US211918A (en) | 1879-02-04 |
Family
ID=2281325
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US211918D Expired - Lifetime US211918A (en) | Improvement in watch and clock keys |
Country Status (1)
Country | Link |
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US (1) | US211918A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2585641A (en) * | 1945-07-21 | 1952-02-12 | Samuel J Goldstein | Finger-supported tool for locating and turning small nuts, boltheads, etc. |
US2664021A (en) * | 1951-02-01 | 1953-12-29 | Kenneth D Clayson | Self-releasing nut starter |
US2679778A (en) * | 1953-04-02 | 1954-06-01 | Aetna Mfg Company | Flexible rotary tool |
US2883691A (en) * | 1956-10-04 | 1959-04-28 | Gruenwald Oskar | Toothbrush |
-
0
- US US211918D patent/US211918A/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2585641A (en) * | 1945-07-21 | 1952-02-12 | Samuel J Goldstein | Finger-supported tool for locating and turning small nuts, boltheads, etc. |
US2664021A (en) * | 1951-02-01 | 1953-12-29 | Kenneth D Clayson | Self-releasing nut starter |
US2679778A (en) * | 1953-04-02 | 1954-06-01 | Aetna Mfg Company | Flexible rotary tool |
US2883691A (en) * | 1956-10-04 | 1959-04-28 | Gruenwald Oskar | Toothbrush |
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