US1324104A - culver - Google Patents

Description

L. A. CULVER.

'TELEGRAPHERS INSTRUMENT.

APPLICATLON FILED JULY 26.1916- RENEWED APR-15.1919.

Patented Dec. 9, 1919.

2 SHEETS-SHEET INVENTOR ATTORNEY L. A. CULVER.

TELEGHAPHERS INSTRUMENT.

lLED JULY 26 1916. RENEWED APR APPLICATION F I 16, 1919. 1,324,104. Patented Dec. 9,1919.

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Application filed. July 26, 1916, Serial No. 111,517.

Toall whom it may 00mm .1 j 1 Be it known that I, LAWRENCE A. German, a citizen oft-he United States, residing at New, Yorlnin the county. of New York and State of New York, have invented certain new and useful Improvements in Telegraphers Instruments, of which the followings a specification.

Thisinvention relates to mechanical-electric mechanism for producing and transmitting dots. and dashes of a telegraph code, primary object to providea vibrator capablewhen operated in one way, oi producing the dots of the code automat ically,.and when actuated in another manner oiproducing the dashes of the code.

A particular advantage of the device to be! hereafter detailed is to provide means whereby great speed in transmitting or sendingcode signals may be attained, as against, a limited low speed of the mechanical sending machines now in use.

A further object of the invention is to providea device of this character which is composed of different parts so arranged as to be readily and minutely adjusted to regulate the speed of the device, and which is adaptable to the heaviest kinds of. code transmission.

With these objects in view, together with the description parts,..all as will be described more fully hereinafter, illustrated in the drawings, and particularly pointed out in the claim.

The invention will be best understood by reference to the accompanying drawings, wherein Figure 1 is a side elevation of a signal producing device constructedin accordance with the invention;

Fig. 2 is a plan view of the device shown in Fig. 1;

Fig. 3 is a sectional view 33 of Fig. 1'; and

Fig. 4c is a diagrammatic view illustrating the manner in which the device is associated with the various electric circuits.

The invention comprehends broadly the arrangement of a finger lever which, when moved in one direction, actuates the mechanism for producing dots, while, when moved in an opposite direction, the dashes of the code are produced.

In the attainment oi these ends, electrotaken upon line Specification of Letters Patent.

Patented Dec. 9, 1919. Renewed April 16, 1912:. Serial No. 290,636.

magnets 5 are employed, and an armature 6 is pivoted as at 7 upon a suitable post or standard 8 ad acent the said electromagnet.

A cont actile spring 9 is arranged between the standard and the vibratory armature 6 in such manner as to normally maintainthe said armature out of contact with the-electromagnets.

The free end of the armature 6 extends beyond. the magnets, andis provided preferably upon its under face with a contact point 10. A post 11 is arranged adjacent the said end of the armature, and provides a table 12 upon which a fixed contact 13 is arranged, and with which the contact 10 of the armature is adapted to engage when the said armature is moved in one direction. The armature end constitutes one terminal of the sending circuit or relay, while the fixed contact 13 constitutes the other terminal, and it is apparent that as the contacts 10 and 13 are engaged, the sending circuit will be closed.

The mechanism for controlling the vibrations of the armature 6 for producing the dots and dashes ofthe code, comprises a finger leverla, pivoted for lateral oscillatory movement as at 15, and which is provided with. finger grips 16. This lever is supported by the bracket or standard 17, the latter being provided with spaced contacts 18 and 19, between which the inner end of the lever llis positioned. The said lever 14 is equipped with contact members 20, which are adapted upon oscillatory movement being delivered to the lever to contact alternately with the fixed contacts 18 and 19. To maintain the lever 1 1 normally spaced equi-distant between thecontacts 18 and 19, expansion springs 21 are employed, the tension of the said springs being varied by the projecting screw members 22. The fixed contacts are also capable of being adjusted toward and away from the contact members 20 on the lever 14:, whereby the throw of the lever 1 1 may be minutely regulated.

Connected at one end to the contact 1nember 19 is a conductor or wire 23, the opposite end of the same being secured to a binding post 24 upon an arm 25 projecting outwardly from the standard 8 above the armature 6. This binding post extends through the arm as shown, and is adapted to be engaged by a contact plate 25 carried by the said armature when the latter is at the limit of its tion that one of the contacts carried thereby engages with the termiml 19, an electric circuit through the wire 23, contact plate 25, wire 26, magnets 5, wire 27, battery 28 will be completed in the lever 14:. Owing to the arrangement of the magnets 5, armature 6 and plate 25 carried thereby, and the spring 9, the circuit is interrupted, and vibratory movement is delivered to the armatur 6. This movement operates through the contacts 10 and 13 to produce in the relay or sounding circuit wires 40 a series of intervaled contacts, whereby the dots in the telegraphic code are produced. Upon movement of the lever 1d into a position to contact one 01": the members 20 with the terminal or contact 18, a circuit will be completed through the wire 29, conductor 26, electromagnets wire 2?, battery 28, and lever 14. T he electromagnets being thus energized draw the armature 6 until the contact 10 carried thereby engages with the contact 13 upon the table 12, whereupon the circuit in the relay is closed, remaining so vuntil the contacts 20, 18 are disengaged. This opera tion produces the dashes of the signaling code.

The speed olvibration of the armature is regulated by adjustment of the contact post 24:, by adjusting an armature stop 31, and by regulating the tension of the contractile spring 9. By this arrangement it is obvious that the speed at which the dots and dashes of the code are made may be minutely regulated.

While the above is a description of the preferred embodiment of the invention, it is obvious that various changes in the minor of said standard and insulated from the latter, an adjusting screw threaded through said portion and adapted to move toward or away from said armature, a spring contact plate connected at one end to said armature and having at its free end disposed beneath said screw, a spring normally holding the said contact engaged with. said screw, a post adjacent the outer end of said armature, a table supported by said post and being poltioned beneath the free end of the said armature, a contact screw on said post abovesaid armature adapted to be engaged by the latter, a contact on said table adapted to be engaged by the free end of the armature when the latter moves downwardly, the end of said armature which engages the said contact screw and contact being insulated from the body thereof, the said contact and contac screw being the terminals oi a sending circuit, a laterally movable key, contacts adapted to be engaged alternately by the movements of said key, an electric circuit including one end or" said key, said electromagnet and the pivoted end of said armature, a wire connected at one end to said circuit and being adapted to be engaged at its opposite end by said key when the latter is moved in one direction, and a second wire adapted to be engaged at one end when the key is moved in the opposite direction and being connected at its opposite end with said adjusting screw. o

in testimony whereof I aflix my signature in presence of two witnesses.

LAJVRENCE ASBURY CULVEIR. Witnesses J. CHRISTIANSON, V L. M. BARKER. "Y 1

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