US1858262A - Sheet-metal bezel for unbreakable clock-crystals - Google Patents
Sheet-metal bezel for unbreakable clock-crystals Download PDFInfo
- Publication number
- US1858262A US1858262A US315403A US31540328A US1858262A US 1858262 A US1858262 A US 1858262A US 315403 A US315403 A US 315403A US 31540328 A US31540328 A US 31540328A US 1858262 A US1858262 A US 1858262A
- Authority
- US
- United States
- Prior art keywords
- clock
- unbreakable
- bezel
- sheet
- crystals
- 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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- 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
- G04B39/00—Watch crystals; Fastening or sealing of crystals; Clock glasses
- G04B39/002—Watch crystals; Fastening or sealing of crystals; Clock glasses made of glass
Definitions
- my invention consists in a sheet-metal bezel for unbreakable clock-crystals having certain details of construction as will be hereinafter described.
- Fig. 2 is an edge view thereof
- Fig. 3 is an enlarged view thereof partly in vertical section and partly in elevation;
- Fig. 4 is a detached face view of the bezel
- Fig. 5 is a detached view of the bezel partly in section.
- Fig. 6 is a broken enlarged sectional View of the bezel and crystal.
- an unbreakable crystal 11 is forced into it by any approved means, either by being initially bowed or bowed in the act of its introduction thereinto, the crystal being sufiiciently larger in diameter than the groove 10 to maintain the crystal in bowed form after the edge of the crystal has been inserted into the said groove, in which it is retained by the effort of the crystal to flatten out and by the retainin -flange 9 of the bezel.
- the assemblingange 7 of the bezel is inserted into the forward edge of the sheet-metal clock-case 12 in which it is frictionally retained, being positioned with respect to the case by the engagement of the projecting stop-shoulder 8 with the forward edge of the case, as clearly shown in Fig. 2.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Catching Or Destruction (AREA)
Description
y 3 E. L. CARLSON 1,858,262
SHEET METAL BEZEL FOR UNBREAKABLE CLOCK CRYSTALS Filed Oct. 27, 1928 Patented May 17, 1932- UNITED STATES PATENT OFFICE ELOF L. CARLSON, OF BRISTOL, CONNECTICUT, ASSIGNOR TO THE E. INGRAHAM CO., OF BRISTOL, CONNECTICUT, A CORPORATION SHEET-METAL BEZEL FOR UNBREAKABLE CLOCK-CRYSTALS Application filed October 27, 1928. Serial No. 315,403.
My invention relates to an improvement in bezels for unbreakable clock-crystals, the object being to produce at a low cost for manufacture a bezel reduced to the simplest possible terms and yet be eflicient and attractive.
With these objects in view, my invention consists in a sheet-metal bezel for unbreakable clock-crystals having certain details of construction as will be hereinafter described.
In the accompanying drawings:
Fig. 1 is a view in front elevation of a nickel clock provided with my improved bezel;
Fig. 2 is an edge view thereof;
Fig. 3 is an enlarged view thereof partly in vertical section and partly in elevation;
Fig. 4 is a detached face view of the bezel;
Fig. 5 is a detached view of the bezel partly in section; and
Fig. 6 is a broken enlarged sectional View of the bezel and crystal.
In carrying out my invention, I produce from a piece of sheet-metal or bezel comprising a relatively-wide annular retainingfiange 7 an offsetting stop-shoulder 8 larger in diameter than the diameter of the said flange, an inwardly-extending crystal-retaining flange 9 and a crystal-receiving groove 10 :1: located within the stop-shoulder 8 which is interposed, as it were, between the said flanges 7 and 9. I
In the use of my improved bezel, an unbreakable crystal 11 is forced into it by any approved means, either by being initially bowed or bowed in the act of its introduction thereinto, the crystal being sufiiciently larger in diameter than the groove 10 to maintain the crystal in bowed form after the edge of the crystal has been inserted into the said groove, in which it is retained by the effort of the crystal to flatten out and by the retainin -flange 9 of the bezel. The assemblingange 7 of the bezel is inserted into the forward edge of the sheet-metal clock-case 12 in which it is frictionally retained, being positioned with respect to the case by the engagement of the projecting stop-shoulder 8 with the forward edge of the case, as clearly shown in Fig. 2.
My improved bezel is not only eflicient in so far as mounting an unbreakable crystal is concerned, but cheap to produce, easily assembled and attractive in appearance. The other details of the clock may be of any approved form and construction and do not concern my improved bezel, so long as the clock-case is open at the front for the reception of the same.
I claim:
A sheet-metal bezel for clock-crystals, comprising a cylindrical assembly-flange adapted to be telescoped into a clock-case, a hollow stop-shoulder formed at the outer edge of the said flange and larger in overall diameter 05 than the same, an inwardly-turned outwardly-inclined retaining-flange forming an extension of the said stop-shoulder, and an annular groove located within the said hollow stop-shoulder; and a concavo-convex unbreakable crystal having its edge inserted into the said annular groove in which it is retained under tension against outward dis placement by the said inwardly-turned outwardly-inclined retaining-flange, with the 7.3 inner face of which its outer face, adjacent its edge, has surface-contact throughout the width of the said flange for the exclusion of dust and for compensation for changes in the crystal due to shrinkage. so
In testimony whereof, I have signed this specification.
ELOF L. OARLSON.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US315403A US1858262A (en) | 1928-10-27 | 1928-10-27 | Sheet-metal bezel for unbreakable clock-crystals |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US315403A US1858262A (en) | 1928-10-27 | 1928-10-27 | Sheet-metal bezel for unbreakable clock-crystals |
Publications (1)
Publication Number | Publication Date |
---|---|
US1858262A true US1858262A (en) | 1932-05-17 |
Family
ID=23224256
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US315403A Expired - Lifetime US1858262A (en) | 1928-10-27 | 1928-10-27 | Sheet-metal bezel for unbreakable clock-crystals |
Country Status (1)
Country | Link |
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US (1) | US1858262A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2471704A (en) * | 1945-10-01 | 1949-05-31 | Jas P Marsh Corp | Indicating gauge |
-
1928
- 1928-10-27 US US315403A patent/US1858262A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2471704A (en) * | 1945-10-01 | 1949-05-31 | Jas P Marsh Corp | Indicating gauge |
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