US776160A - Telegraph-key. - Google Patents

Telegraph-key. Download PDF

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Publication number
US776160A
US776160A US20703804A US1904207038A US776160A US 776160 A US776160 A US 776160A US 20703804 A US20703804 A US 20703804A US 1904207038 A US1904207038 A US 1904207038A US 776160 A US776160 A US 776160A
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United States
Prior art keywords
key
spring
telegraph
block
base
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Expired - Lifetime
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US20703804A
Inventor
Roye M Wood
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Individual
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Individual
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Publication date
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Priority to US20703804A priority Critical patent/US776160A/en
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Publication of US776160A publication Critical patent/US776160A/en
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Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L15/00—Apparatus or local circuits for transmitting or receiving dot-and-dash codes, e.g. Morse code
    • H04L15/04—Apparatus or circuits at the transmitting end
    • H04L15/06—Apparatus or circuits at the transmitting end with a restricted number of keys, e.g. separate key for each type of code element
    • H04L15/08—Apparatus or circuits at the transmitting end with a restricted number of keys, e.g. separate key for each type of code element with a single key which transmits dots in one position and dashes in a second position

Definitions

  • My invention relates to telegraplrkeys, and has for its object to provide a horizontallyswinging key to increase the transmitting speed.
  • a further object is to provide a spring-actuated key which shall be very sensitive and easy to operate.
  • a further object is to provide means for regulating the tension of the key-spring, so that the resiliency of the key can be adjusted to suit the operator.
  • Figure 1 is a side elevation
  • Fig. 2 a plan View, of the key.
  • Fig. 3 is a transverse section on the line 3 3 of Fig. 2
  • Fig. i is a transverse section on the line t 4 of Fig. 2.
  • the key denotes the base of the key, and it is provided with threaded stems 7, whereby it is fastened to the table.
  • the key comprises a horizontally-swinging lever 8, having at its outer end the usual button 9.
  • the inner end of the levcr is secured to a leaf-spring 10, which is fastened in a block 11 on the base.
  • A. frame 12 is attached to the base near the front edge thereof, through which the key extends.
  • Contact-screws 18 extend through the side Walls of the frame, so that when the key is swung back and forth in a horizontal plane the circuit will be closed by contact with the points of either one of the screws, they also serving to regulate the stroke of the key.
  • the spring 10 renders the key verysensitive and easy to operate and returns it to its normal position between the contact-points of the screw 13 after each stroke.
  • the block 11, in which the spring 10 is fastened, is cut away on both sides of the latter,
  • a switch-lever 18 is pivoted to the base near its rear end at 19.
  • the contact for the switch comprises a thin strip 20, which is clamped between the bottom of the frame 12 and an insulating-block 21 on the base.
  • a telegraph-key comprising a base, a block thereon, a leaf-spring fastened in said block and carrying the key-lever, and blocks adjustable along the spring for regulating the tension thereof.
  • a telegraph-key comprising a base, a block thereon, a leaf-spring fastened in said block and carrying a horizontally-swinging lever, and blocks adjustable along the spring for regulating the tension thereof.

Description

PATENTED NOV. 29, 1904.
R. M. WOOD.
TELEGRAPH KEY.
APPLICATION FILED MAY 9, 1904.
N0 MODEL- Snow 1km 61mm, J,
qvlhwwaeo I UNiTEn STATES Patented November 29, 1904.
ROYE M. WOOD, OF CHICAGO, ILLINOIS.
TELEGRAPH-KEY.
SPECIFICATION forming part of Letters Patent No. 776,160, dated November 29, 1904. Application filed May 9, 1904:. Serial No. 207,088. (No model.)-
To (LU 11/72/0771, it may concern:
Be it known that I, Row: M. \Voon, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented new and useful Improvements in Telegraph-Keys, of which the following is a specification.
My invention relates to telegraplrkeys, and has for its object to provide a horizontallyswinging key to increase the transmitting speed.
A further object is to provide a spring-actuated key which shall be very sensitive and easy to operate.
A further object is to provide means for regulating the tension of the key-spring, so that the resiliency of the key can be adjusted to suit the operator.
In the accompanying drawings, Figure 1 is a side elevation, and Fig. 2 a plan View, of the key. Fig. 3 is a transverse section on the line 3 3 of Fig. 2, and Fig. i is a transverse section on the line t 4 of Fig. 2.
Referring specifically to the drawings, 6 denotes the base of the key, and it is provided with threaded stems 7, whereby it is fastened to the table. The key comprises a horizontally-swinging lever 8, having at its outer end the usual button 9. The inner end of the levcr is secured to a leaf-spring 10, which is fastened in a block 11 on the base. A. frame 12 is attached to the base near the front edge thereof, through which the key extends. Contact-screws 18 extend through the side Walls of the frame, so that when the key is swung back and forth in a horizontal plane the circuit will be closed by contact with the points of either one of the screws, they also serving to regulate the stroke of the key. The spring 10 renders the key verysensitive and easy to operate and returns it to its normal position between the contact-points of the screw 13 after each stroke.
The block 11, in which the spring 10 is fastened, is cut away on both sides of the latter,
'as at 14, to receive blocks 15, which are connected by athumb-screw 16, extending through a slot 17 in the spring. By loosening the screw the blocks can be slid forward over the spring, as shown by dotted lines in Fig. 1. This shortens up the spring, and therefore stiflens it. The resiliency of the key can therefore be adjusted to suit the operator.
A switch-lever 18 is pivoted to the base near its rear end at 19. The contact for the switch comprises a thin strip 20, which is clamped between the bottom of the frame 12 and an insulating-block 21 on the base.
The use of this key eliminates the liability to telegraphers paralysis, there being no strain on the wrist, because the entire forearm can be used in the sidewise movement.
Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is
1. A telegraph-key comprising a base, a block thereon, a leaf-spring fastened in said block and carrying the key-lever, and blocks adjustable along the spring for regulating the tension thereof.
2. A telegraph-key comprising a base, a block thereon, a leaf-spring fastened in said block and carrying a horizontally-swinging lever, and blocks adjustable along the spring for regulating the tension thereof.
In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.
ROYE M. WOOD. Witnesses:
SIGNA FELTSKOG, H. Gr. BATCHELOR.
US20703804A 1904-05-09 1904-05-09 Telegraph-key. Expired - Lifetime US776160A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US20703804A US776160A (en) 1904-05-09 1904-05-09 Telegraph-key.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20703804A US776160A (en) 1904-05-09 1904-05-09 Telegraph-key.

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US776160A true US776160A (en) 1904-11-29

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US20703804A Expired - Lifetime US776160A (en) 1904-05-09 1904-05-09 Telegraph-key.

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