US1341810A - Telegraph-key - Google Patents

Description

W. P. LILES.

TELEGRAPH KEY.

APPLICATION FILED JULY 3, I915- RENEWEU OCT- 25, I919- 1,341,810. I Patented June 1, 1920.

' Qvihmnaca a w I UNITED STATES varsur QFFICE.

WILLIAM I. LILES, 0F MARLOW, TENNESSEE, ASSIGNOR TO LEVI METCALF, 01E

MARLOW, TENNESSEE.

TELEGRAPH-KEY.

Specification of Letters Patent.

Patented June 1, 1920.

Application filed July 13, 1915, Serial No. 39,663. Renewed October 25, 1919. Serial No. 333,373.

To all whom it may concern:

Be it known that 1, WILLIAM P. LILES, a citizen of the United States, residing at Marlow, in the county of Anderson, State of Tennessee, have invented certain new and useful Improvements in Telegraph-Keys; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it ap'pertains to make and use the same.

This invention relates to certain new and useful improvements in telegraph keys.

An object of the invention resides in the provision of a key wherein means is included for automatically closing the circuit in which the key is interpolated when the operator leaves the instrument.

A further object of the invention resides in so constructing the device that the circuit will be broken when the instrument is in operation, normally. I

With these and other objects in view, such as will appear as my description progresses, my invention resides in the combination and arrangement of parts as set forth in and falling within the scope of the appended claim.

In the drawing Figure 1 is a side elevation of my device;

Fig. 2 is a top plan view; and

Fig. 3 is a fragmental bottom plan view.

Referring to the drawing by reference characters wherein. like parts are indicated by like characters throughout the several views:

In the drawing, 1 have illustrated a telegraph sending instrument which includes a lever 1 and a base 2, on which'the lever is mounted. The lever is provided with a finger piece 3 of insulating material. Locatedbeneath the lever 1 andon the base 2 is a contact 4.

In order that the line circuit may be com-- pleted, automatically, through the lever and the contact 4, I have pivoted a lever'5 to the lever 1, at 6. A portion of this lever extends beneath the lever 1 and is provided with a contact 7 which is adapted to engage the contact 4. Secured to one end of this lever 5 is a finger piece 8 made of suitable insulating material which finger piece lies above the finger piece 3 and is normally held in spaced relation thereto by a spring 9 which is interposed between the lever 5 and the lever 1. spring is to push the contact 7 downwardly into engagement with the contact 4 so as to complete the line' circuit when pressure is relieved from the fingerpiece 8.

In operation, when the operator is sending a message, the finger piece 8 will be pushed into contact with the finger piece 3 and the portion of the lever 5 which is located beneath the lever 1 will be in contact with the said lever 1 and held in such position against the tension of the spring 9 by the pressure applied to the finger piece 8. The lever 1 may thus be moved upwardly and downwardly to make and break the circuit through the contacts 7 and 4. When the pressure is relieved from the finger piece 8 the spring 9 will immediately push the con tact 7 downwardly and complete the circuit from the contact 7 to the contact 4.

It will thus be seen that I have provided a device which may be attached to telegraph keys and which will automatically complete the line circuit whenthe operator is through sending a message. I

lVhile I have illustrated and described a, particular embodiment of my invention, it has merely been for the sake of convenience and I do not wish to be limited to that particular embodiment as it is obvious that numerous changes may be made within the scope of the appended claim;

WVhat I claim is A telegraph key, comprising in combination. a base a key lever pivoted thereon, a fixed contact on the base, a lever carried by the key lever and consisting of a metal strip pivoted to the side of the key lever and having one end turned to overlie the finger piece thereof, and having its opposite end. turned below the key lever to overlie the fixed contact, and a message sending contactcarried by the lever to engage the fixed contact, and a spring interposed between. the key lever and the last mentioned lever above the former to actuate the latter to normally close the gap across the contacts.

In testimony whereof I affix my signature, in the presence of two witnesses.

WILLIAM P. LILES.

The primary function of this

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