US141045A - Improvement in spring-joints for watch-cases - Google Patents
Improvement in spring-joints for watch-cases Download PDFInfo
- Publication number
- US141045A US141045A US141045DA US141045A US 141045 A US141045 A US 141045A US 141045D A US141045D A US 141045DA US 141045 A US141045 A US 141045A
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- US
- United States
- Prior art keywords
- spring
- case
- cases
- joint
- watch
- 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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- 239000000428 dust Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 238000009877 rendering Methods 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
- G04B37/0025—Cases for pocket watches and wrist watches with cover or bottom with a spring (savonette) bench watches opening or closing with spring action G04B37/0463
Definitions
- My invention relates to certain improvements in watches that have one or more cases, which are thrown open when released by the action of a spring-joint; and it consists, mainly, in a novel construction and arrangement of the spring-joint which controls and opens the front case, whereby I am enabled to so construct the joint that no hole or opening is presented at any time whether the case be open or closed, and all dust is thus excluded.
- the joint is also so made that it gives a double stop or support to the case as it flies open from the impulse of the spring.
- Figure l is a front view of the watch with a portion removed to show the jointspring and lug.
- Fig. 2 is a sectional view taken through the joint.
- Fig. 3 is an enlarged view of the joint and lug.
- A is the frame of a watch having the front and back cases B and G and the inside case D.
- the front case is hinged at the springjoint, and is kept closed by a spring-catch operated in the usual manner by the thumbpiece in the stem.
- the hinge-joint is madein the present case in three sections, the two outer ones, 0 and f, being secured to the frame, while the middle one, i, is secured to the case, a pin passing through the three, and serving as an axis about which the case moves.
- the middle jointsection 1 has an arm or lug, m, which projects below or inside the frame through an opening made for the purpose, and which the section just fills as it turns, and into the end of this lug the end of the operating-spring it passes or is secured.
- This spring extends some distance around inside the frame, and is properly attached, its free end having a forward-and-back motion
- a slight projection, 0, at the back of the case strikes a projection upon the-outer edge of the frame, as shown, when the case reaches its extreme limit in opening in the ordinary manner, and the lug m thus acts as an assistant or secondary stop, taking the strain off the joint, and rendering it more secure from being broken.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Pivots And Pivotal Connections (AREA)
Description
UNITED STATES PATENT Orrrcn.
JOHN GORDON, OF SAN FRANCISCO, CALIFORNIA.
IMPROVEMENT IN SPRING-JOINTS FOR WATCH-CASES.
Specification forming part of Letters Patent No. 141,045, dated July 22, 1873; application filed November 16, 1872.
To all whom it may concern:
Be it known that I, JOHN GORDON, of San Francisco city and county, State of California, have invented a Spring-Joint for Watch Cases; and I do hereby declare the following description and accompanying drawings are sufficient to enable any person skilled in the art or science to which it most nearly appertains to make and use my said invention without further invention or experiment.
My invention relates to certain improvements in watches that have one or more cases, which are thrown open when released by the action of a spring-joint; and it consists, mainly, in a novel construction and arrangement of the spring-joint which controls and opens the front case, whereby I am enabled to so construct the joint that no hole or opening is presented at any time whether the case be open or closed, and all dust is thus excluded.
The joint is also so made that it gives a double stop or support to the case as it flies open from the impulse of the spring.
Referring to the accompanying drawings for a more complete explanation of my invention, Figure l is a front view of the watch with a portion removed to show the jointspring and lug. Fig. 2 is a sectional view taken through the joint. Fig. 3 is an enlarged view of the joint and lug.
A is the frame of a watch having the front and back cases B and G and the inside case D. The front case is hinged at the springjoint, and is kept closed by a spring-catch operated in the usual manner by the thumbpiece in the stem. The hinge-joint is madein the present case in three sections, the two outer ones, 0 and f, being secured to the frame, while the middle one, i, is secured to the case, a pin passing through the three, and serving as an axis about which the case moves. The middle jointsection 1 has an arm or lug, m, which projects below or inside the frame through an opening made for the purpose, and which the section just fills as it turns, and into the end of this lug the end of the operating-spring it passes or is secured.
This spring extends some distance around inside the frame, and is properly attached, its free end having a forward-and-back motion,
by which it operates the lug m, and through this the case B. The case is thus opened when released from the spring-catch. The lug m being entirely below the joint, the latter is complete where it passes through the frame, and the frame itself has no opening, as in the case of the ordinary joint. All possibility of dust entering is thereby avoided. As the case opens the lug m is arrested by striking theinner side of the frame, thus serving as a stop.
A slight projection, 0, at the back of the case strikes a projection upon the-outer edge of the frame, as shown, when the case reaches its extreme limit in opening in the ordinary manner, and the lug m thus acts as an assistant or secondary stop, taking the strain off the joint, and rendering it more secure from being broken.
In thecase of watches having more than three sections to the hinge, two springs are sometimes employed; but it is manifest that my device is as applicable to this form as the present one, and also to the back cases of watches if the spring-joint be used.
Some modifications of my arrangement maybe found desirable in some cases, but the devices will be equivalent and essentially the same, the principal point being to do away with the opening from the exterior to the interior of the watch.
Having thus described my invention, what I claim, and desire to secure by Letters Patent is-- 1 The case, joint, or hinge having the attached lugm, in combination with the operatin g spring, as herein shown, whereby I am en abled to construct a joint and case spring without having any opening for the admission of dust, and avoiding the piercing of the plate A, as set forth.
2. The lug m attached to the case B, when constructed to act as a stop or guard, substantially as set forth.
In witness whereof I hereunto set my hand and seal.
JOHN GORDON. [L. s.l Witnesses:
J. L. 1300M 0. LI. RICHARDSON.
Publications (1)
Publication Number | Publication Date |
---|---|
US141045A true US141045A (en) | 1873-07-22 |
Family
ID=2210458
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US141045D Expired - Lifetime US141045A (en) | Improvement in spring-joints for watch-cases |
Country Status (1)
Country | Link |
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US (1) | US141045A (en) |
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0
- US US141045D patent/US141045A/en not_active Expired - Lifetime
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