US1099912A - Telegraph-key. - Google Patents

Telegraph-key. Download PDF

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Publication number
US1099912A
US1099912A US80048413A US1913800484A US1099912A US 1099912 A US1099912 A US 1099912A US 80048413 A US80048413 A US 80048413A US 1913800484 A US1913800484 A US 1913800484A US 1099912 A US1099912 A US 1099912A
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United States
Prior art keywords
key
base
telegraph
block
circuit
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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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US80048413A
Inventor
Raymond Clark Brittin
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Individual
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Individual
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Priority to US80048413A priority Critical patent/US1099912A/en
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Expired - Lifetime legal-status Critical Current

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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

  • This invention relates to a telegraph key.
  • the object of the invention is to insure positive closing of a line circuit when the key is not in use; to avoid the necessity of having a pivoted switch separate from the operating key; and to provide a circuit closing device which is not liable to be accidentally knocked open.
  • Figure 1 is a side elevation of the key, parts being in closed position.
  • Fig. 2 is a section on the line 22 of Fig. 1.
  • Fig. 3 is a section on the line 3-3 of Fig. 1.
  • Fig. 4 is a sectional side elevation of the forward portion of the key, parts being in open po-.
  • FIG. 1 represents the usual base and 2 the pivoted key, said base being provided with the depending posts 3 and 4 by means of which it is secured in place and to which the respective line wires are secured.
  • a contact plate 8 is secured upon the under side of the head of the post 4 and extends transversely across the forward end of the base but out of contact with any part of said base.
  • a slidable block 10 which carries said lmob.
  • a spring member 11 also extends from said block to the body portion of the key, the entire end. of said member being flanged and slidable along the key.
  • a two pronged switch 12 which switch is adapted to straddle post 4 and the upper-portion of the sleeve 5, the prongs passing between the base 1 and the plate 8 when the block 10 is moved along the key toward the base.
  • Figs. 1, 2 and 3 I have shown the parts in normal position, the key being inoperative and the circuit being completed through the post 3, base 1, switch 12, plate 8 and post 4.
  • the post By moving the post outwardly into the position shown in Fig. 4 prongs of the switch 12 are moved out of engagement with the plate 8, the key is brought into operative position and the circuit broken. In such position the circuit is completed only by contact of the pins 6 and 7 due to operation of the key.
  • What I claim is 1.
  • the combination with a telegraph key comprising binding posts one of which is insulated from the key base, a contact plate carried by said insulated post and spaced from the base, an operating knob movable along the key, and a forked switch movable with said knob and adapted to complete a circuit between said plate and said base when said knob is moved along the key toward the base.

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  • Input From Keyboards Or The Like (AREA)
  • Push-Button Switches (AREA)

Description

- R. 0. BRITTIN.
TELEGRAPH KEY. APPLICATION FILED NOV.'12, 1913.
1,099,912, Patented June 16,1914.
RAYMOND CLARK BRITTIN, OF NORWICH, CONNECTICUT.
TELEGRAPH-KEY.
Specification of Letters Patent.
Patented June 16, 1914.
Application filed November 12, 1913. Serial No. 800,484.
To all whom it may concern Be it known that I, RAYMOND C. BRITTIN,
a citizen of the United States, residing at Norwich, in the county of New London and State of Connecticut, have invented a new and useful Improvement in Telegraph- Keys, of which the following is a specification,
This invention relates to a telegraph key.
The object of the invention is to insure positive closing of a line circuit when the key is not in use; to avoid the necessity of having a pivoted switch separate from the operating key; and to provide a circuit closing device which is not liable to be accidentally knocked open.
The invention consists of the novel features of construction hereinafter described, pointed out in the claims and shown in the accompanying drawings, in which:
Figure 1 is a side elevation of the key, parts being in closed position. Fig. 2 is a section on the line 22 of Fig. 1. Fig. 3 is a section on the line 3-3 of Fig. 1. Fig. 4 is a sectional side elevation of the forward portion of the key, parts being in open po-.
sition. v
In these drawings 1 represents the usual base and 2 the pivoted key, said base being provided with the depending posts 3 and 4 by means of which it is secured in place and to which the respective line wires are secured. The forward post 4 shown in Figs.
,3 and 4 is provided with an insulating sleeve 5 which insulates it from the base 1 and the upper end of said post carries one of the contact pins 6, the other pin 7 being carried by the under side of the key.
A contact plate 8 is secured upon the under side of the head of the post 4 and extends transversely across the forward end of the base but out of contact with any part of said base. Instead of mounting the knob 9 directly upon the key as is the usual practice I mount upon the forward portion of the key a slidable block 10 which carries said lmob. A spring member 11 also extends from said block to the body portion of the key, the entire end. of said member being flanged and slidable along the key. To the under side of the block is secured the shank portion of a two pronged switch 12, which switch is adapted to straddle post 4 and the upper-portion of the sleeve 5, the prongs passing between the base 1 and the plate 8 when the block 10 is moved along the key toward the base.
In Figs. 1, 2 and 3 I have shown the parts in normal position, the key being inoperative and the circuit being completed through the post 3, base 1, switch 12, plate 8 and post 4. By moving the post outwardly into the position shown in Fig. 4 prongs of the switch 12 are moved out of engagement with the plate 8, the key is brought into operative position and the circuit broken. In such position the circuit is completed only by contact of the pins 6 and 7 due to operation of the key.
What I claim is 1. The combination with a telegraph key comprising binding posts one of which is insulated from the key base, a contact plate carried by said insulated post and spaced from the base, an operating knob movable along the key, and a forked switch movable with said knob and adapted to complete a circuit between said plate and said base when said knob is moved along the key toward the base.
2. The combination with a telegraph key, a block slidably mounted thereon, an operating knob carried by said block, and a circuit closing device carried by said block, the said circuit being opened and the key operative when the block is moved to the outer end portion of the key, the circuit being closed and the key inoperative when the block is moved inwardly, as and for the purpose set forth.
RAYMOND CLARK BRITTIN.
Witnesses:
C. V. PENDLETON, J r., S. H. THUSPER.
Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,
Washington, D. G.
US80048413A 1913-11-12 1913-11-12 Telegraph-key. Expired - Lifetime US1099912A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US80048413A US1099912A (en) 1913-11-12 1913-11-12 Telegraph-key.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80048413A US1099912A (en) 1913-11-12 1913-11-12 Telegraph-key.

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US1099912A true US1099912A (en) 1914-06-16

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US80048413A Expired - Lifetime US1099912A (en) 1913-11-12 1913-11-12 Telegraph-key.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005005227A1 (en) * 2003-07-14 2005-01-20 Jieru Chen Pet buggy

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005005227A1 (en) * 2003-07-14 2005-01-20 Jieru Chen Pet buggy

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