US233405A - Watch-case - Google Patents
Watch-case Download PDFInfo
- Publication number
- US233405A US233405A US233405DA US233405A US 233405 A US233405 A US 233405A US 233405D A US233405D A US 233405DA US 233405 A US233405 A US 233405A
- Authority
- US
- United States
- Prior art keywords
- watch
- cases
- case
- rim
- dust
- 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
- 239000000428 dust Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000001012 protector Effects 0.000 description 2
- 239000011343 solid material Substances 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
- G04B37/00—Cases
- G04B37/0008—Cases for pocket watches and wrist watches
- G04B37/005—Cases for pocket watches and wrist watches with cover or protection device which can be completely removed, either by lifting off or by sliding, or by turning (protection covers, protection cases also against humidity)
Description
(No Model.) F. EPHRAIM.
Watch Case.
No. 233,405. Patented Oct. 19,1880.
Jig. g.
MPETERS, FHOTO LYHOGRA WASHKNGTOI D C '25 Figure l is a view of my device.
UNITED STATES PATENT OFFICE.
FERDINAND EPHRAIM, OF BODIE, CALIFORNIA.
WATCH-CASE. 1
SPECIFICATION forming part of Letters Patent No. 233,405, dated October 19, 1880.
Application filed August 9, 1880.
To all whom it may concern:
Be it known that I, FERDINAND EPHRAIM, of Bodie, county of Mono, and State of California, have invented a Dust- Protector for 5 WatchCases; and I hereby declare the following to be a full, clear, and exact description thereof.
My invention relates to an improved construction of watch-cases by which dust and moisture may be prevented from entering the case and injuring the works of the watch. Much damage is done in a very short time to watches carried by persons engaged in occupations where there is much dust by fine particles of dirt, which get between the cases and gradually reach the operative parts of valuable watches, and in a short time destroy the usefulness of the time-piece.
My invention consists in making the rim to which the cases are hinged so that a groove is formed around the periphery of the cases outside, and this arrests the dirt and prevents it entering the watch.
Referring to the accompanying drawings,
Fig. 2 is an edge view.
A represents the rim of a watch-case. B B
are the outside cases, and O is my dust-cover. This dust-cover is formed of a single strip of (No model.)
metal secured around theperiphery of the rim 0 A in shape of a flat ring or band, and it extends on each side of the rim far enough to cover the crevice between the cases and the rim when the cases are closed, so as to prevent the entrance of dirt or dust when the cases are closed.
In manufacturing watch-cases the part 0 will form a part of the rim A, the whole being made from solid material; but it will be seen that I can attach the dust-cover to watches now in use by forming a separate band and afterward securing it around the periphery.
Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-
A dust-protector for watch-cases consisting of the flat rim or band C, surrounding the rim of the watch and forming flanges which project above the edges of the cases B B, substantially as and for the purpose herein described.
In witness whereof I have hereunto set my hand.
FERDINAND EPHRAIM.
Witnesses:
R. L. PETERSON, Lnwrs SCHOENS.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US233405A true US233405A (en) | 1880-10-19 |
Family
ID=2302773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US233405D Expired - Lifetime US233405A (en) | Watch-case |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US233405A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060082904A1 (en) * | 2004-10-20 | 2006-04-20 | Takashi Kato | Catadioptric projection optical system and exposure apparatus having the same |
| US20090188351A1 (en) * | 2006-07-26 | 2009-07-30 | Farrell Terry C | Rescue Tool |
-
0
- US US233405D patent/US233405A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060082904A1 (en) * | 2004-10-20 | 2006-04-20 | Takashi Kato | Catadioptric projection optical system and exposure apparatus having the same |
| US20090188351A1 (en) * | 2006-07-26 | 2009-07-30 | Farrell Terry C | Rescue Tool |
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