US215917A - Improvement in attaching electrical switch-wires to binding-posts - Google Patents
Improvement in attaching electrical switch-wires to binding-posts Download PDFInfo
- Publication number
- US215917A US215917A US215917DA US215917A US 215917 A US215917 A US 215917A US 215917D A US215917D A US 215917DA US 215917 A US215917 A US 215917A
- Authority
- US
- United States
- Prior art keywords
- binding
- wire
- posts
- wires
- improvement
- 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
- 230000000875 corresponding Effects 0.000 description 2
- 239000002657 fibrous material Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/50—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw
- H01R4/5016—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw using a cone
- H01R4/5025—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw using a cone combined with a threaded ferrule operating in a direction parallel to the conductor
Definitions
- the object of my invention is to furnish convenient means for attaching spiral wire, such as is used for the connection of switches in'telegraph -instruments, to their bindingposts.
- spiral wire such as is used for the connection of switches in'telegraph -instruments
- the usual devices used for the attachment of straight wires cannot be conveniently used for spiral wire.
- My invention consistsin a screw-plug, adapted for entering the coil of the wire, so as to give metallic connection, and at the same time be firmly connected with the wire and its fibrous covering material, which plug is adapted for connection to the usual binding-posts.
- FIG. 1 is a longitudinal section of the same with a wire attached.
- Figs. 2 and 3 represent a modification adapted to a bindingpost of usual character.
- A is a post, of usual character, in which the wire is held to the body of the post by a screw-plug, a.
- the spiral wire is shown at b, and is covered by fibrous material, as usual.
- 0 is a screw-plug, it being of a size adapted for entering the coil of wire, I), and slightly distending the coil, so that the wire will follow the threads of the screw and insure a metallic connection.
- the plug 0 is adapted for connection to a post wherein the wire is usually inserted through an aperture in the post and clamped by a screw.
- the screw end of c enters the coiled wire, as before described, and the fibrous covering is held by a metal ferrule or a winding of silk, as shown.
- the outer end of c terminates in a stout wire of a size and length adapted for insertion in the binding-post.
- the coiled wire is securely held, and may be connected to any of the binding-posts in use.
- the plug 0 may be ribbed or corrugated for application to the coil; but I prefer the screwthread.
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- Ropes Or Cables (AREA)
Description
J. E. HAMILTON.
Attaching Electrical Switch-Wires t0 Binding-Posts.
No. 215,917. Patented May 27,1879.
c ay-I5 WITNESSES 1 ATTORNEYS.
N-PETERS, PHOTO-UTHOGRAPNER, WpsmplGroN. D c
UNITED STATES PATENT OFFICE.
JAMES E. HAMILTON, OF NEW YORK, N. Y.
IMPROVEMENT IN ATTACHlNG ELECTRlCAL SWlTCH-WlRES T0 BINDING-POSTS.
Specification forming part of Letters Patent No. 215,917, dated May 27, 1879; application filed March 5, 1879. I
To all whom it may concern:
Be it known that I, JAMES E. HAMILTON, of the city, county, and State of New York, have invented a new and useful Improvement in Attaching Electrical Switch-Wires to Binding-Posts, of which the following is a specification.
The object of my invention is to furnish convenient means for attaching spiral wire, such as is used for the connection of switches in'telegraph -instruments, to their bindingposts. The usual devices used for the attachment of straight wires cannot be conveniently used for spiral wire.
My invention consistsin a screw-plug, adapted for entering the coil of the wire, so as to give metallic connection, and at the same time be firmly connected with the wire and its fibrous covering material, which plug is adapted for connection to the usual binding-posts.
My device is shown in the accompanying drawings, wherein- Figure 1 is a longitudinal section of the same with a wire attached. Figs. 2 and 3 represent a modification adapted to a bindingpost of usual character.
Similar letters of reference indicate corresponding parts.
Referring to Fig. 1, A is a post, of usual character, in which the wire is held to the body of the post by a screw-plug, a.
The spiral wire is shown at b, and is covered by fibrous material, as usual.
0 is a screw-plug, it being of a size adapted for entering the coil of wire, I), and slightly distending the coil, so that the wire will follow the threads of the screw and insure a metallic connection.
In attaching the wire to post A the end of wire I) will first be inserted through the central aperture of plug a from the outer enter. The plug 0 will then be screwed into the coiled wire far enough to hold securely and prevent withdrawal of the wire.
\Vhen plug a is screwed into post A the head of 0 will give metallic contact.
In the form shown in Figs. 2 and 3, the plug 0 is adapted for connection to a post wherein the wire is usually inserted through an aperture in the post and clamped by a screw. The screw end of c enters the coiled wire, as before described, and the fibrous covering is held by a metal ferrule or a winding of silk, as shown. The outer end of c terminates in a stout wire of a size and length adapted for insertion in the binding-post.
By this device the coiled wire is securely held, and may be connected to any of the binding-posts in use.
Instead of being formed with a screw-thread, the plug 0 may be ribbed or corrugated for application to the coil; but I prefer the screwthread.
Having thus described my invention, 1 claim as new and desire to secure by Letters Patent-- The combination, with post A, screw-plug a, and spiral wire I), of a screw, 0, that slightly distends the wire, and has a head which gives metallic contact, as described, for the purpose specified.
JAMES E. HAMILTON.
Witnesses:
0. SEDGWICK, Gno. D. WALKER.
Publications (1)
Publication Number | Publication Date |
---|---|
US215917A true US215917A (en) | 1879-05-27 |
Family
ID=2285319
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US215917D Expired - Lifetime US215917A (en) | Improvement in attaching electrical switch-wires to binding-posts |
Country Status (1)
Country | Link |
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US (1) | US215917A (en) |
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0
- US US215917D patent/US215917A/en not_active Expired - Lifetime
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