US180669A - Improvement in self-closing telegraph-keys - Google Patents
Improvement in self-closing telegraph-keys Download PDFInfo
- Publication number
- US180669A US180669A US180669DA US180669A US 180669 A US180669 A US 180669A US 180669D A US180669D A US 180669DA US 180669 A US180669 A US 180669A
- Authority
- US
- United States
- Prior art keywords
- lever
- telegraph
- keys
- self
- key
- 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
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
- H01H21/86—Switches with abutting contact carried by operating part, e.g. telegraph tapping key
Definitions
- Figure l represents a side view ot' an ordinary telegraph-key, showing the improved automatic attachment with the circuit close-d.
- Fig. 2 is a plan view of the same.
- Fig. 3 is a side view, same as in Fig. 1, showing the circuit-closer open, as it would appear while operating the key.
- Fig. 4 represents a sectional view taken through the line c cl of Fig.2, showing more fully the manner of making the-connection between the insulated post and the bed of the key or post that is not insulated.
- Fig. 5 represents another form of the insulated end ofthe circuit-closer.
- Figs. 6 and 7 represent right and left circuit-closers, arranged to ⁇ operate on either side of the key-lever.
- Fig. 6 and 7 represent right and left circuit-closers, arranged to ⁇ operate on either side of the key-lever.
- S represents a section ot' the key-lever, showing a clamp, to which is attached the circuitcloser, also shown in Fig. 7.
- A represents the table.
- B is the bed ofthe telegraph-key,provided with uprights O C on each side, in which operate the pivot-screws and binding-nuts D E, and support the lever F by means ot' the pivot-bar F.
- the lever F is also provided at one end with the insulatingknob K, and at the other end with the adjusting-screw H and jam-nut G.
- To one end ot' the base B is secured the post J, and at the other end of the base is secured the insulated post O O', all arranged to operate in the ordinary manner.
- My improved circuit-closer is represented by the letters It L N, and is arranged with the insulated part R in any desired form for convenience.
- the insulated part B. is represented as encircling ⁇ the insulated knob K of the lever F, with a pivot-joint at M with the lever.
- the insulated part R is arranged so as to be adapted either to the right or left side ot' theknob-lever F.
- L N represent the metallic end, which is formed so as to make positive connections with'the insulated head O of the post O', and the bed B or post J ot' the key.
- the piece P1 is formed with an inclined plane or projection, P, and is secured to the bed B by the screw P2, (shown in Fig. 2,) either on the right or left side of the lever F, as may be required.
- the end ot' the circuit-closer N is designed to be wedge-shaped, and is arranged to drop between the inclined projection P and the inclined edge ofthe top O ot' theinsu'lated post O', and make a positive connect-ion between them,
- An attachment f'or telegraph-keys consisting of a lever having an insulated end, R, and beveled end N, adapted to be hung to the lever of the instrument, and the plate P1, having a projection, P, and adapted to be secured to the base ot' the instrument, as and for the purpose described.
Description
G. SOUTHARD.
sELF-cmsma TELEGMPH KEYS. .1\1, 180,559 Patented A1191, 1a7e.
INVENTDH- Errea.
GEORGE SOUTHARD, OF INDIANAPOLIS, INDIANA'.
IMPROVEMENT IN SELF-CLOSING TELEGRAPH-KEVS.
Specification forming part of Letters Patent No. 180,669, dated August 1, 1876; application led d January 3, 1876.
thus preventing' the key from being left openI by mistake or carelessness.
Figure l represents a side view ot' an ordinary telegraph-key, showing the improved automatic attachment with the circuit close-d. Fig. 2 is a plan view of the same. Fig. 3 is a side view, same as in Fig. 1, showing the circuit-closer open, as it would appear while operating the key. Fig. 4 represents a sectional view taken through the line c cl of Fig.2, showing more fully the manner of making the-connection between the insulated post and the bed of the key or post that is not insulated.
Fig. 5 represents another form of the insulated end ofthe circuit-closer. Figs. 6 and 7 represent right and left circuit-closers, arranged to `operate on either side of the key-lever. Fig.
S represents a section ot' the key-lever, showing a clamp, to which is attached the circuitcloser, also shown in Fig. 7.
A represents the table. B is the bed ofthe telegraph-key,provided with uprights O C on each side, in which operate the pivot-screws and binding-nuts D E, and support the lever F by means ot' the pivot-bar F. The lever F is also provided at one end with the insulatingknob K, and at the other end with the adjusting-screw H and jam-nut G. To one end ot' the base B is secured the post J, and at the other end of the base is secured theinsulated post O O', all arranged to operate in the ordinary manner. My improved circuit-closer is represented by the letters It L N, and is arranged with the insulated part R in any desired form for convenience. In Figs. l, 2, and
3 the insulated part B. is represented as encircling` the insulated knob K of the lever F, with a pivot-joint at M with the lever. In Figs. 5, 6, and 7 the insulated part R is arranged so as to be adapted either to the right or left side ot' theknob-lever F. L N represent the metallic end, which is formed so as to make positive connections with'the insulated head O of the post O', and the bed B or post J ot' the key. The piece P1 is formed with an inclined plane or projection, P, and is secured to the bed B by the screw P2, (shown in Fig. 2,) either on the right or left side of the lever F, as may be required.
The end ot' the circuit-closer N is designed to be wedge-shaped, and is arranged to drop between the inclined projection P and the inclined edge ofthe top O ot' theinsu'lated post O', and make a positive connect-ion between them,
and prevent the key from being` left open, which often causes much trouble, especially in railroad-telegraphing, where, if a key is left open by accident or carelessness, it often leaves the wires in a condition not to be operated for considerable time, which cannot be the result with my improved circuit-closer.
I claiml. An attachment f'or telegraph-keys, consisting of a lever having an insulated end, R, and beveled end N, adapted to be hung to the lever of the instrument, and the plate P1, having a projection, P, and adapted to be secured to the base ot' the instrument, as and for the purpose described.
Z. The combination of the lever F, lever It L N, hung to the side ofthe lever F, and plate P1, having a projection, P, and secured to the base-plate, as set i'orth.
ln testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.
GEO. SOUTHARD. Witnesses:
E. O. Fermi, J. E. LUDLUM.
Publications (1)
Publication Number | Publication Date |
---|---|
US180669A true US180669A (en) | 1876-08-01 |
Family
ID=2250075
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US180669D Expired - Lifetime US180669A (en) | Improvement in self-closing telegraph-keys |
Country Status (1)
Country | Link |
---|---|
US (1) | US180669A (en) |
-
0
- US US180669D patent/US180669A/en not_active Expired - Lifetime
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US180669A (en) | Improvement in self-closing telegraph-keys | |
US144274A (en) | Improvement in self-closing telegraph-keys | |
US102353A (en) | Improvement in basso-tenuto for m elodeons, stc | |
US696180A (en) | Electric switch. | |
US351834A (en) | jenkins | |
US558617A (en) | Walter e | |
US479859A (en) | Telegraph-key | |
US269521A (en) | Emery m | |
US932019A (en) | Telegraph-key. | |
US961185A (en) | Controller-switch for electric motors. | |
US581135A (en) | Martin m | |
US330037A (en) | Bridge | |
US723253A (en) | Telegraph-key. | |
USD38872S (en) | Design for a plate | |
US293105A (en) | Missouei | |
US451268A (en) | Electric switch | |
US480782A (en) | Electric-lighting system | |
US499770A (en) | David j | |
US590015A (en) | Switch-stand | |
US879300A (en) | Telegraph-switchboard. | |
US900238A (en) | Telegraph-key. | |
US143298A (en) | Improvement in mechanical keys and sounders for telegraphs | |
US439959A (en) | Telegraph-key | |
US452397A (en) | Electric push-button | |
US832116A (en) | Thermostat. |