US217420A - Improvement in spectacle-bow hinges - Google Patents
Improvement in spectacle-bow hinges Download PDFInfo
- Publication number
- US217420A US217420A US217420DA US217420A US 217420 A US217420 A US 217420A US 217420D A US217420D A US 217420DA US 217420 A US217420 A US 217420A
- Authority
- US
- United States
- Prior art keywords
- spectacle
- bow
- improvement
- hinges
- springs
- 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
- 244000027321 Lychnis chalcedonica Species 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C1/00—Assemblies of lenses with bridges or browbars
- G02C1/06—Bridge or browbar secured to or integral with closed rigid rims for the lenses
- G02C1/08—Bridge or browbar secured to or integral with closed rigid rims for the lenses the rims being tranversely split and provided with securing means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/32—Articulated members
- Y10T403/32606—Pivoted
- Y10T403/32861—T-pivot, e.g., wrist pin, etc.
- Y10T403/32918—T-pivot, e.g., wrist pin, etc. fork and tongue
- Y10T403/32934—Oppositely laterally movable tines
Definitions
- the object of my invention is to cause the bow to retain until worn out the same fi rmnose and accuracy of movement as when new, and prevent it from becoming loose by Wear.
- the end of the bow-piece designed to ork as a hinge is placed under a die, and cut in the form of a Maltese cross, as shown in Figure 1.
- the middle of the upright A is then sawed out to a certain distance below the arms on, as shown in Fig. 2, leaving the two sides b b b I), which are spread a little, forming two distinctive springs.
- the arms When placed in the socket of the spectacle-frame the arms a a fit in ,the pin-holes d d, Figs. 3 and 4, forming the turning-pin for the hinge and holding the bow in its place.
- the springs b b b b b pressing against the sides of the socket prevent the bow from becoming loose from wear.
- the end of the spectacle-frame containing the socket is made in two pieces, for conven ience of admitting the arms 01. Ct to the pinholes, and then brought together by a screw at f, Figs. 3 and 4.
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Ophthalmology & Optometry (AREA)
- Optics & Photonics (AREA)
- Eyeglasses (AREA)
Description
J, S. SPENCER. Spectacle-Bow Hinge.
No. 217,420. Patented July 8,1879.
u F/G. :4 /a/ .4
WITNESSES! INVENTOR.
-N PET8S, FHQTO-LITHOGRAPHER, WASHINGTON D c LUNITED STATES PATENT OFFICE.
JOHN-S. SPENCER, OF NEW YORK, N. Y.
IMPROVEMENT IN SPECTACLE-BOW HINGES.
Specification forming part of Letters Patent No. 217,420, dated July 8, 1879; application filed J nne 4, 1879.
To all whom it may concern:
Be it known that I, JoHN S. SPENCER, of the city of NewYork, in the State of New York, have invented a new and useful Improvement in the Hinge of Spectacle-Bows, which improvement is fully set forth in the following specification, reference being had to the accompanying drawings.
The object of my invention is to cause the bow to retain until worn out the same fi rmnose and accuracy of movement as when new, and prevent it from becoming loose by Wear.
The end of the bow-piece designed to ork as a hinge is placed under a die, and cut in the form of a Maltese cross, as shown in Figure 1. The middle of the upright A is then sawed out to a certain distance below the arms on, as shown in Fig. 2, leaving the two sides b b b I), which are spread a little, forming two distinctive springs. When placed in the socket of the spectacle-frame the arms a a fit in ,the pin-holes d d, Figs. 3 and 4, forming the turning-pin for the hinge and holding the bow in its place. The springs b b b b pressing against the sides of the socket prevent the bow from becoming loose from wear.
The end of the spectacle-frame containing the socket is made in two pieces, for conven ience of admitting the arms 01. Ct to the pinholes, and then brought together by a screw at f, Figs. 3 and 4.
It will be evident that by the constant outward pressure of the springs b b b b, and the arms a a being of the same piece as these springs, the how will retain its original adjustment and regularity of movement, and the process is simpler than the ordinary method of swaging up the end of the bow and then drilling a hole and putting in a pin.
I claim as my inventionr The springs and pins cut from the same piece of steel, by which the bow is held firmly in place without swaging and without sepa' rate pin, substantially as described.
1 JOHN S. SPENCER.
Witnesses:
MARCUS P. BESTOW, W. R. DENsLow.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US217420A true US217420A (en) | 1879-07-08 |
Family
ID=2286822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US217420D Expired - Lifetime US217420A (en) | Improvement in spectacle-bow hinges |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US217420A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2587472A (en) * | 1949-12-08 | 1952-02-26 | Willson Products Inc | Eyeglasses having improved temple pivot structure |
| US20040238073A1 (en) * | 2001-10-16 | 2004-12-02 | Kazuo Ishii | Method for producing nitriding steel |
| US20060128074A1 (en) * | 2004-12-13 | 2006-06-15 | Texas Instruments Incorporated | Combined fully-depleted silicon-on-insulator (FD-SOI) and partially-depleted silicon-on-insulator (PD-SOI)devices |
-
0
- US US217420D patent/US217420A/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2587472A (en) * | 1949-12-08 | 1952-02-26 | Willson Products Inc | Eyeglasses having improved temple pivot structure |
| US20040238073A1 (en) * | 2001-10-16 | 2004-12-02 | Kazuo Ishii | Method for producing nitriding steel |
| US20060128074A1 (en) * | 2004-12-13 | 2006-06-15 | Texas Instruments Incorporated | Combined fully-depleted silicon-on-insulator (FD-SOI) and partially-depleted silicon-on-insulator (PD-SOI)devices |
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