US1109411A - Telegraph-transmitter. - Google Patents

Description

R. F. GALE.

TELEGRAPH TRANSMITTER. APPLICATION FILED .TAN.15,1913.

1,109,4;1 1 Patented Sept. 1, 1914 3 SHEETS-SHEET 1.

R1 Gale R. F. GALE.

TELEGRAPH TRANSMITTER.

APPLICATION FILED JAN. 15, 1913.

1,109, 11 1 Patented Sept. 1, 1914.

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nuenkoz RF Gale. Huh woo R. F. GALE.

TELEGRAPH TRANSMITTER.

APPLICATION FILED JAN. 15, 1913.

1,109,41 1 Patented Sept. 1, 1914.

3 BHEETS -SHEET 3.

anaemic;

BI] Gale.

To all whom it may concern."

UNITED STA ES PAE NT O nor r. s e row: warms, INDIANA.-

'rnnneaarn-rmsivurrnm J Be it known that I, RorF. GALE,a citizen of the United States,""residing at Fort I the line and wherein'bymeans of'an' automatic vibrator the dot sending capacity of the transmitter will be increased. 1

It is also my purpose to provide a trans mitter of the class described 1 wherein by means of an automatic vibrator, composed of a vibratory lever normally held in circuit closing position and a magnet controlling such lever connected in series with the line circuit, and a key for closing the line circuit,

- the vibrator will operate automaticallvto alternately make and break the circuit there by increasing the range and capacity of: the instrument 1n the transmission of dots, means being provided whereby the throw of the lever of the vibrator may be'regulated in accordance withthe circumstances of any particular case or theconditions prevailing.

Furthermore, it is my purpose to provide a telegraph transmitter in which the vibrator will be cut out of service in the sending or transmission of dashes and whereby a message composed of alternate dots and dashes or a particular arrangement of such will be sent rapidly and easily.

A further object of my invention is the provision of-an' instrument of'the'type set forth which will embrace the desired features of simplicity, efiiciency, durability and convenience coupled with cheapness of cost in manufacture and marketing a'ndwhich may be readily installed in a telegraph line or circuit. j With the above and other objects in view, the invention consists in the construction,- combination and arrangement of parts-hereinafter set forth in and falling within the scope of the claims.

In the v accompanying drawings; Figure -1 is a perspective view of a transmitter constructed -n accordance with my presenting I 'is i fioat onof Letters Pate t 1:. I Amman filed January 5, 1913. Serial No. 742,256...

Patent ase m, 191 4.

vention. Fig.. 2-isa top planview thereof.

Fig. 3 isa side elevation of the same. '-Fig. 41s a'atop plan view of a key usedinconjunction with my improved transmitter. Fig.

5 is an enlarged transverse sectional view throughFig. 4, F ig, 6 is a view in side elevation of thekey, and Fig. 7 is a diagrammatic view of the circuit connections of the Y transmitter.

Referring now to the accompanying drawingsli n detail, the numeral 1 indicates the baseof my'improved transmitter, such base being constructed of any suitable material and of any: desired dimensions. Surmounting thebase l andupstanding therefrom approximately centrally of the length thereof is a support 2, such support, in the present instance, being in the form of a substantially u shaped yoke having the free ends of the opposite limbs thereof suitably fastened to the upper surface ofthe base.

In the present instance, my improved automatic vibrator comprises horizontally disposed magnets- 3, 3 having the forward ends thereof projected through and resting within openings in the support 2 while the rear ends thereof carry a block 4 to which is rigidly connected one end of a shank 5 projects through a bore in a standard 6 upstanding from the base-1 adjacent to one end thereof, the free end of the shank 5 beyond the bearing on the standard 6 being screw threaded as at 7 to receive a knurled manipulating disk 8, while an expansion spring 9 encircles the shank between the block 4 and the standard. By means of this construction, it will be seen that the spring 9 normally acts to force the magnets 3, 3 through the support-2 while by manipulating'the disk 8 the magnets may be retracted against the action of the spring and maintained in any desired position. The vibratory lever of the vibrator is indicated at 10 and is pivoted between its ends for vertical swinging movement within h rizontally disposed adjustable bearings 11, 11 carried by a yoke 12 secured tothe support 2 above and between the poles of the magnets 3, 3. Secured to the lever 1-0 is a horizontal armature 13 disposed within the influence of the poles of the magnets 3, 3 and adapted, when the magnets are energized, to swing the lever in one direction.v To the upper end of the vibratory lever 10 (if the automatic vibrator, that is the end above the yoke 12, is fastened a contact 14, herein shown to be in the form of jacent to the end thereof opposite from the standard 6 is a second standard 18 equipped at its upper end with an outwardly extending arm 19 carrying an adjusting element 20 rotatably mounted within a bearing on the free end of the arm 19 and connected by means of a cord or the like 21 with one end of a coiled contractile spring 22, the free end of the latter being connected to the vibratory lever and acting to hold the contacts 14 and in engagement with each other. A weight. 23 or other controlling element is adjustably mounted upon the vibratory lever 10 adjacent to the lower end thereof so that the movement of the lever may be regulated, while a yoke 24 of suitable construction embraces the upper extremity of the vibratory lever and has the opposite ends of the limbs thereof secured to the support 2 and extends outwardly from such support and carries an adjustable stop screw 25 disposed in the path of movement of approximate end of the lever to limit the movement thereof under the action of the magnets 3, 3. In order to limit the return movement of the vibratory lever of the vibrator under the action of the spring 22 any suitable form of check may be em ployed. In the present instance, a headed shank 26 threadedly engages a horizontal bore formed in the lower end of the standard l8 and carries at its free end-a butter 27 disposed in the path of movement of the lower extremity of the lever 10 and adapted to be contacted by such lever when the latter is moved under the action of the spring 22 to engage the contacts 14 and 15.

Appropriately fastened to the upper sur face of the base 1 below the magnets 3, 3 of the vibrator is a suitableform of key by means of which the operation of the transmitter is controlled. In the embodiment of my invention selected for illustrative purposes, this key comprises a. base 28 carrying at one end thereof a substantially U-shaped bearing bracket 29 equipped with oppositely disposed vertically alining bearing screws 30, 30 between the confronting ends of which is pivoted one end of a key lever 31 adapted for horizontal swinging movement and provided with oppositely disposed contacts 32, 33 adapted to engage contacts 34, 35 respectively carried upon posts 36 secured to the base at the end thereof opposite from the bearing bracket 29 and arranged at the opposite sides of the key lever 31. Mounted upon the base 28 approximately centrally thereof is a tension adjuster 3T composed in the present instance of a yoke 38 having the opposite limbs thereof extending upwardly and formed with axially alining openings through which is loosely passed a shank 39 provided with a head 40 at one end and equipped with a collar and pin 41 at the opposite end whereby accidental displacement of the shank is avoided. Between the limbs of the yoke 38 the shank 39 is provided with right and left handed screw threads 42, 43 respectively and such threaded portions are passed through nuts 44, 45, while upon the central portion of the shank is loosely mounted a collar 46 having the opposite edges thereof formed to provide annular flanges or shoulders 47, the collar 46 being passed through an opening in the key lever 31 while shoulders or flanges 47 contact with the respective sides of the key lever to prevent movement of the lever independently of the collar, expansion springs surrounding said shank at opposite sides of the collar 46 and having the inner end thereof bearing upon the collar and the outer extremity abutting the nuts 44, -45. lVhen it is desired to vary the throw or horizontal movement of the key lever 31, the shank 39 is rotated under the action of the head 40 and moves the nuts 44, inwardly of the yoke or toward one another, or away from each other according, as it is desired to in crease the movement of the key lever or decrease such movement. The free end of the key lever 31 is equipped with a suitable form of manipulating device 48 by means of which the keymay be operated in the well known manner. The switch of the key includes a switch lever 49 pivoted at one end upon a stud 50 for swinging movement and in electrical communication with a binding post 51 common to the key lever and switch lever. A contact 52 is adapted to be engaged by the lever 49 and has electrical connections with the post 36 of the contact 35 so that when the switch is closed a complete circuit will be established through the key for the well known purpose. Binding posts 53 have connections with the posts 36, 36 of the contacts 34, 35 respectively and cooperate with the binding post 51 in order that the key may be properly connected in the line circuitv and in circuit with the automatic vibrator in a manner which will presently appear.

Binding posts 54, 55 are appropriately fastened to the upper surface of the base 1 in convenient positions. Leading to the binding post 54 is a line wire 56, while leading from the binding post 54 is a conductor 57 terminally connected to the binding post 51 of the key lever 31. A conductor 58 has one terminal connected to the binding post 53 of the contact 84 while the opposite terminal thereof is extended through the coils of the magnets 3, 3 and has the free terminal thereof connected to the contact 14: on the vibratory lever of the vibrator, a conductor 59 being connected at one end to the contact 15 and at its opposite end to the binding post. from which latter leads the linewire 60. From the binding post 53 of the contact 35 extends a conductor 61 having the free terminal thereof connected to the binding post 55 and forming with the conductor 57, when the key lever 31 is in engagement" with the contact 35, a path for the current around the automatic vibrator.

From the foregoing description taken in connection with the accompanying drawing, the construction, mode of operation and manner of employing my invention will be readily apparent. transmit a message composed of a successive number of dots, the key lever 31 is moved horizontally about its pivot to engage the contact 34: whereby the circuit is closed through the line wire 56, conductor 57, key lever 31, contact 34, conductor 58, through the magnets 3, 3, vibratory lever 10, contacts 14 and 15, and the conductor 59 back through the line. As long as the key is maintained in this position, the circuit at the contacts 14 and 15 is alternately made and broken as will be readily apparent thereby enabling the sending of a successive number of dots in a minimum time and with ease and facility. On the other hand, when it is desired to change from dots to dashes, the key lever 31 is moved into engagement with the contact 35 whereby the sending circuit is completed through the line wire 56, conductor 57, key lever and contact 35, conductor 61 and line wire 60. Thus, a path for the current is established around the automatic vibrator and independently of such vibrator whereby the dashes may be transmitted.

It will be noted that by means of my improved transmitter and sending or transmitting of dots and dashes -may be readily alternated, that is, to say, an operator may quickly manipulate the key lever from dot to dash sending position and vice versa.

By means of the weight 23 on the lover of the vibrator, the swinging movement of such lever may be readily regulated or controlled, while the screw 25 enables the movement of the lever under the action of the magnets to be adjusted, the check composed of the shank 26 and buffer 27 controlling the movement of the vibratory lever under the action of the spring 22. In some cases, it may be found advantageous to vary the distance between the poles of the magnets 3, 3 and the armature 13 carried by the lever 10.

\Vhen it is desired to,

lVhen such' is desired, the magnets may be bodily moved toward and away from the armature by means of the shank 5, manipulating disk 8 and spring 9, while the tension of the spring 22 may be readily adjusted through the medium of the cord or other flexible element 21 and the adjusting element 20. j

' It will be noted. that the lever of the au-v tomatic vibrator is mounted in such manner as to maintain a vertical position and swing about a horizontal axis. This mounting of the lever is particularly advantageous in telegraph transmitters of this character for the reason that the lever more readily responds to the magnets, when the latter are energized, and is also capable of a particularly fine and accurate adjustment.

IVhile I have herein shown and described one preferred form of my invention by way of illustration, I desire to have it understood that I do not limit or confine myself to the precise details of construction herein described and delineated, as modification and variation may be made within the scope of the claims and without departing from the spirt of the invention.

I claim:

1. A telegraph key comprising a base, a key lever pivoted upon the base, contacts disposed at the opposite sides of said key lever to facilitate the sending of dots and dashes respectively, and a tension adjuster for controlling the movement of said key lever, said adjuster comprising a shank having relatively reverse screw threads formed thereon, and nuts receiving said shank and adapted to be moved toward and away from each other to vary the throw of the lever.

2. A telegraph key comprising a base, a key lever pivoted upon said base, contacts disposed at the opposite sides of said key lever to facilitate the sending of dots and dashes respectively, and a tension adjuster for controlling the movement of said key lever, said adjuster comprising a shank having relatively reverse screw threads formed thereon, nut-s threaded onto said shank and adapted to be moved toward and away from each other to vary the throw of said lever, and springs interposed between said nuts and lover.

3. In a telegraph transmitter, a base, a support projecting upwardly from said base, a magnet carried by said support, a yoke secured to said support and extending outwardly therefrom above the pole of said magnet, horizontally alining adjustable bearings carried by said yoke, a vertical lever pivoted within said bearings and capable of vibration, an armature secured to said lever and disposed ithin the influence of the pole of said magnet and adapted when the magnet is energized to swing the lever in one direction, a stationary contact secured to said support above said yoke, a contact carried by the upper end of said lever and ada ted to alternately engage and disengage sai first contact in the vibration and bearing upon the adjacent end of said lever to limit the swmging movement thereof.

In testimony whereof I afiix my signature in presence of two witnesses.

ROY F. GALE.

Witnesses:

J. H. ADAMS, MARJORJE OsBoRN.

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