US182305A - Improvement in lock-work attachments for clocks - Google Patents
Improvement in lock-work attachments for clocks Download PDFInfo
- Publication number
- US182305A US182305A US182305DA US182305A US 182305 A US182305 A US 182305A US 182305D A US182305D A US 182305DA US 182305 A US182305 A US 182305A
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- US
- United States
- Prior art keywords
- clocks
- lock
- improvement
- wire
- drop
- 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
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- 229910001369 Brass Inorganic materials 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
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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
- G04B21/10—Releasing or locking the regular stroke, e.g. for silence during the night
Definitions
- wire B As wire B is freed from arm D, it will strike upon the face of stud c, and hold it from going any further in that direction, and thereby raise the drop-wire B, which, were it not for stud 0, would cause the drop-wire B to lift the drop or looking pawl, (not here represented,) and thereby allow the clock to strike at the wrong time.
- arm D As arbor A revolves in its natural course, arm D will go over the end of wire B, and by its revolution will come up and under wire B, so to raise it in the manner represented by dotted lines M, Fig. No. 2, and lift the drop or looking pawl of the striking mechanism of a clock, and allow the wheels to revolve, and thereby the hammer sound the bell at the required hour.
Description
E. C. COVELL 8. M. M. ROBINSON.
LOCK-WORK ATTACHMENTS FOR CLOCKS.
No. 182,305. Patented Sept. 19. 1876.
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N. PETERS. PHOTO-LITHOGRAPMER. wAsmNGTDN. D C.
UNITED STATES PATENT QFFICE.
EDGAR U. COVELL AND MARK M. ROBINSON, OF LAGONIA, N. H.
IMPROVEMENT lN LOCK-WORK ATTACHMENTS FOR CLOCKS.
. Specification forming part of Letters Patent No. 182,305, dated September 19, 1876 application filed March 4, 1876.
To all whom it may concern:
Be it known that we, EDGAR O. OoVELL and MARK M. ROBINSON, of Laconia, county of Belknap and State of New Hampshire, have invented a new and useful Improvement in Lock-Work Attachment for Clocks, which improvement is fully set forth in the following specification, reference being had to the accompanying drawings.
In carrying out our invention we have very much simplified the mode of arranging the set-back attachment to a striking-clock, which we accomplish in this way: We use the com- Inon bent wire B, Figure No. 2, or drop-wire,
so-called, usually employed in the clocks known as the American. This wire has been allowed to drop from bent arm or hook D of the minute-hand arborAof a clock, Fig. No. 1, and rest upon said arbor A. This wire B we form at its lower or outward end in the form of a circle, and allow it to drop under arbor A, as indicated in Fig. No. 3, so in turning the hands back the arm D will catch in the circle of wire B and follow around and push it far enough to allow it to slip out and over its end, as represented by the dotted lines'a a, Fig. No. 2 and to avoid any recoil, if any there should be, we attach to arbor A an arm or stud, c, Fig. No. 3, which we make out of brass or other suitable material. Now, as wire B is freed from arm D, it will strike upon the face of stud c, and hold it from going any further in that direction, and thereby raise the drop-wire B, which, were it not for stud 0, would cause the drop-wire B to lift the drop or looking pawl, (not here represented,) and thereby allow the clock to strike at the wrong time. As arbor A revolves in its natural course, arm D will go over the end of wire B, and by its revolution will come up and under wire B, so to raise it in the manner represented by dotted lines M, Fig. No. 2, and lift the drop or looking pawl of the striking mechanism of a clock, and allow the wheels to revolve, and thereby the hammer sound the bell at the required hour.
We claim as our invention- In a clock, the combination of the stud c and arm D of the minute-hand arbor A with the drop-wire B, all being constructed and arranged substantially as specified and represented.
EDGAR G. GOVELL. MARK M. ROBIN SUN.
Witnesses:
GEORGE A. HATCH, GEORGE B. LANE.
Publications (1)
Publication Number | Publication Date |
---|---|
US182305A true US182305A (en) | 1876-09-19 |
Family
ID=2251711
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US182305D Expired - Lifetime US182305A (en) | Improvement in lock-work attachments for clocks |
Country Status (1)
Country | Link |
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US (1) | US182305A (en) |
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0
- US US182305D patent/US182305A/en not_active Expired - Lifetime
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