US1434474A - Pull-chain device - Google Patents
Pull-chain device Download PDFInfo
- Publication number
- US1434474A US1434474A US201432A US20143217A US1434474A US 1434474 A US1434474 A US 1434474A US 201432 A US201432 A US 201432A US 20143217 A US20143217 A US 20143217A US 1434474 A US1434474 A US 1434474A
- Authority
- US
- United States
- Prior art keywords
- pull
- key
- chain device
- socket
- wire
- 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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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
Description
L. V. ABONSON.
PULL CHAIN DEVICE.
APPLICATION FILED NOV. 12. 1911.
EAMAMO Patented Nov. 7, 1922.
Patented l lov. 7, 1922,
LOUIS V. ABONSON, OF NEWVABK, NEW JERSEY.
PULL-CHAIN DEVICE.
Application filed November 12. 1917.
1/ 0 all whom it may concern:
Be it known that I. Lorrrs V. AnoNsoN, a citizen of the United States, and a resident of Newark, in the county of Essex and State of New Jersey, have invented a certain new and useful Improvement in Pull-Chain I evices, of which the following is a specification.
This invention relates to pull chain devices such as are used in the operation of electric lamp socket keys.
The primary object of this invention is to provide an improved and simpli ied device of this general nature that will have the characteristic of being readily attached in operative position on a Socket key without the use of tools.
With this and other objects in view the invention consists broadly in the provision of a comparatively rigid rod or wire formed intermediate its ends for attachment to a socket key and provided at each end with a suitable pull chain or cord.
Other features of the invention will be hereinafter described.
The features of the invention referred to will be readily understood from an inspection of the accompanying drawing in which a pull chain device is shown that embodies the invention in a preferred form. dra wing.
Figure l is a perspective view of an electric chandelier showing two lamp socket keys equipped with devices embodying the invention.
Figure 2 is a plan view of a lamp socket and key equipped with a pull chain device embodying the invention.
Figure 3 is a view in elevation of the dcvice shown in Figure 2.
Figure 4 is a perspective detail view of the key engaging portion of the pull chain device.
The pull chain device shown in the drawing comprises a short length of comparatively rigid wire 1 twisted substantially at its center into two or more coils 2 that are adapted to hold between them the flattened finger piece of a key 8 carried by the socket 4 for controlling the lighting of an electric bulb such as 5 mounted in the socket.
The wire rod 1 preferably possesses such a degree of resiliency as to grasp the socket Tn the- Serial No. 201,432.
The opposite ends of the wire 1 are provided with eyes (3 to which is attached a single looped strand of cord or chain 7 of such a length that it can be readily grasped to n'ianipulate the key in a well-known manner. Obviously. instead of the single loop of chain 7. a separate chain can be provided for each end of the wire '1. if desired.
it will be seen that a pull. chain device has thus been provided in which simplicity of construction is an important factor. This is secured by forming the device of a single piece of wire having a portion formed into convolutions to directly grasp a socket key. This furnishes a construction so simple that the device can be applied in operative position on a socket or released therefrom by anyone. however mechanically unskilled, and wholly without the use of tools. By its use the uncomfortable straining to reach a key done away with and the keys can be easily converted into controlling devices of the pull chain type, whereby the operation of the socket switches is greatly facilitated.
Having thus described my invention, what I claim as new and desire to secure by Let ters Patent of the United States, is:
l. A. pull chain device comprising: a rigid bar having a pair of coils formed therein about an substantially coincident with said bar.
2. A pull chain device comprising: a rigid one-piece wire having a pair of key-grasping coils formed therein in planes substantially transverse to said wire.
3. A pull chain device comprising: a single-length rigid bar having a pair of coils formed therein in such relation to each other as to grasp a socket key therebetween, said coils being arranged to exert a clamping action on the interposed key. the ends of said bar extending in opposite directions away from said. coils.
Signed at Newark. in the county of Essex and State of New Jersey. this 23rd day of Oct, 1917.
LOUIS V. ARONSON.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201432A US1434474A (en) | 1917-11-12 | 1917-11-12 | Pull-chain device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201432A US1434474A (en) | 1917-11-12 | 1917-11-12 | Pull-chain device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1434474A true US1434474A (en) | 1922-11-07 |
Family
ID=22745791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US201432A Expired - Lifetime US1434474A (en) | 1917-11-12 | 1917-11-12 | Pull-chain device |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1434474A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2612578A (en) * | 1949-07-30 | 1952-09-30 | Stueland Lafe | Resetting attachment for fluorescent lamp starters |
| US2747037A (en) * | 1952-12-18 | 1956-05-22 | James P Watson | Electric switch |
-
1917
- 1917-11-12 US US201432A patent/US1434474A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2612578A (en) * | 1949-07-30 | 1952-09-30 | Stueland Lafe | Resetting attachment for fluorescent lamp starters |
| US2747037A (en) * | 1952-12-18 | 1956-05-22 | James P Watson | Electric switch |
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