USRE7594E - Improvement in lock-work attachments for clocks - Google Patents
Improvement in lock-work attachments for clocks Download PDFInfo
- Publication number
- USRE7594E USRE7594E US7594DE USRE7594E US RE7594 E USRE7594 E US RE7594E US 7594D E US7594D E US 7594DE US RE7594 E USRE7594 E US RE7594E
- Authority
- US
- United States
- Prior art keywords
- clocks
- wire
- improvement
- trip
- lock
- 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
Links
- 238000010276 construction Methods 0.000 description 2
- 206010022114 Injury Diseases 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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
- G04B21/00—Indicating the time by acoustic means
- G04B21/02—Regular striking mechanisms giving the full hour, half hour or quarter hour
- G04B21/06—Details of striking mechanisms, e.g. hammer, fan governor
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Harvester Elements (AREA)
Description
J. W. WILLIAMS. LOCK-WORK ATTACHMENT Eon cLocKs;
Reissued April 3, 1877.
UNITED STATES PATENT OFFICE.
JOHN W. WILLIAMS, OF NEW YORK, N. Y.
IMPROVEMENT IN LOCK-WORK ATTACHMENTS FOR CLOCKS.
Specification forming part of Letters Patent No. 183,094, dated October 10, 1876; reissue No. 7,594, dated April 3, 1877; application filed March 12, 1877.
To all whom it may concern Be it known that I, JOHN W. WILLIAMS, of the city, county, and State of New York, have invented a new and useful Improvement in Clock-Works, of which the following is a specification:
Figure l is a rear view of a clock-work to which my improvement has been applied. Fig. 2 is a detail view, illustrating the movement when the hands are turned forward. Fig. 3 is a detail view, illustrating the movement when the hands are turned backward. Fig. 4 is a plan View of the parts as turned partially back.
Similar letters of reference indicate corresponding parts.
The object of this invention is to furnish an improved attachment for the works of striking-clocks, to enable the hands to be turned back in setting the clocks Without any danger of breaking any part of the said Works, and which shall be simple in construction, and will not increase the cost of the works.
Lifting devices for striking-clocks have been made with a V or cam shaped piece of metal upon the arbor of the minute-hand, acting against a straight wire that lets 011' the striking device. 7
My improvement is made for employing the ordinary bent-wire hook upon the arbor of the minute-hand and the ordinary bent trip-wire, and for allowing the clock-hands to be turned back without injury to the parts. This is accomplished by an inclinedor cam plate upon the trip-wire, that causes the hook or bent arm upon the arbor to force the trip-wire aside laterally if the hands are turned back past the hour. The trip-Wire springs back to place when the bent arm passes clear of the incline; but it operates in the usual manner when the striking mechanism is disengaged or tripped.
A is the minute-hand, which is attached to the shaft B, and is carried around by and with it.
To the shaft B is attached an arm, 0, which, at each revolution'of the shaft B, strikes and pushes back the trip-wire D, which releases the striking mechanism and allows it to strike.
With the ordinary construction of trip-wire, if the minute-hand A is turned back, as the arm 0 comes around, it catches upon the trip wire D, and if the hand A is turned back any farther something must break.
To prevent this breakage I employ a small inclined or cam plate, E, upon the trip-wire D, in such a position that, as the arm 0 comes around, its end will strike against the plate E, push the trip-wire D to one side, and pass it without releasing the striking mechanism or injuring the parts, and the trip-wire springs back again.
Having thus described my invention, I claim as new and desire. to secure by Letters Patcut- The combination, with the hook or bent arm 0 and the trip-wire D, of an incline or cam plate, E, upon the trip-wire D, and operating in the manner and for the purposes set forth.
Signed by me this 5th day of March, A. D. 1877.
JOHN W. WILLIAMS.
Witnesses:
GEo. T. PINOKNEY, GEO. D. WALKER.
Publications (1)
Publication Number | Publication Date |
---|---|
USRE7594E true USRE7594E (en) | 1877-04-03 |
Family
ID=2067904
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US7594D Expired USRE7594E (en) | Improvement in lock-work attachments for clocks |
Country Status (1)
Country | Link |
---|---|
US (1) | USRE7594E (en) |
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0
- US US7594D patent/USRE7594E/en not_active Expired
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