US884381A - Telegraph-transmitter. - Google Patents

Description

No. 884,381. PATENTED APR. 14, 1908. v M. S. HALING.

TELEGRAPH TRANSMITTER.

APPLICATION FILED MAY 22, 1906.

MIN

lJN TF-i) TATFQ MARK s; HALING, OF

PATENT WEAVER, MINNESOTA.

TE LE GRAPH-TRANSMITTER.

To all whom it may concern:

Be it known that 1, MARK S. HALING a citizen of the United States, residing at Weaver, in the county of Wabasha and State of Minnesota, have invented a new and useful Telegraph-Transmitter, of which the following is a specification.

This invention relates to telegraph keys or transmitters, and has for its irincipal object to provide a device of simpie construction, whereby a circuit may be rapidly opened and closed in accordance with th Morse or other alphabet.

A further object of the invention is to provide a key in which separate levers or other movable members are employed for the sending of the dots and dashes.

A still further object of the invention is to provide a vibrator which may be set into operation for the transmission of dots, and in which only a single movement of the key by the operator is necessary for the transmission of any number of dots.

A still further object of the invention is to provide a spring actuated vibratory contact arranged under the control of the operator, and the operation of which, when once started,will continue until checked by the operator.

With these and other objects in view, as will more fully hereinafter a pear, the invention consists in certain nove features of construction and arrangement of parts, hereinafter fully described, illustrated in the accompanying drawings, and particularly pointed out in the a pended claims, it being understood that various changes in the form, proportions, size and minor details of the structure may be made Without departing from the spirit or sacrificing'any of the advantages of the invention.

In the accompanying drawings :Figure 1' is a plan view of a telegraph key or transmitter constructed inaccordance with the invention. Fig. 2 is a transverse sectional view of the same on the line 22 of Fig. 1. Fig. 3 is a detail perspective view of the various parts of the lever mountings detached. Fig. 4' is a detail view, partly in section, of one of the lever fulcrum screws. Fig. 5 is a detail perspective view of the dot transmitting ever. Fig. 6 is a similar view of the dash transmitting lever. Fig. 7 is a detail gerspective view of the vibrator detached. 1 8 is a similar view of the adjustable contact I with which the vibrator contactengages in the transmission of dots.

Specification of Letters Patent.

Patented April 14, 1.908.

1906. Serial No. 318,220.

Similar numerals. of reference are employed to indicate corresponding parts throughout the several figures of the draw lngs. The key is provided with a suitable base 10, which is preferably formed of insulating material, and on the base is secured a cross bar 11, on top of which rests a bridge 12. The cross bar is provided with bearing openings 15 for the reception of the lower pintles or trunnions 16 of the sending levers, and the bridge has openings for the passage of bearing screws 17 which form supports for the upper trunnions.

tory movement in horizontal planes, instead of being arranged to move in vertical planes, and said keys are provided with finger pieces 18 conveniently arranged, so that they may be readily moved to and fro by the operator.

dashes, and is normally held against a back stop 20 by means of a spring 21. When the key is moved, it'engages an adjustable contact 21, and closes the circuit. At the right hand side of the machine is the usual switch 22, by which the circuit may be closed through the key in the usual manner, while the key is not in use.

Secured to a vertically disposed lug or bracket 23, is a leaf spring 24, said spring being permanently connected to a vibratory plate or bar 25 which is provided at one edge with a vertically disposed flange 26. This flange is provided with an elongated slot 27 flange is mounted an adjustable weight 29 having an opening for the rece tion of the screw, so that said weight may e locked in any position to which it may be adjusted. The weight is employed to regulate the period of vibration, and when moved in the direction of the lug or bracket 23, the vibration will be comparatively rapid, and when moved toward the outer endof the vibrator, the vibrations become more sluggish.

.The outer portion of the plate 25 is engaged by the cushioned end of the dot key or lever 31, said lever being held in engagement spring 32, and forcing the opposite side of said plate into contact with a cushioned ad- 'g. justable stop .33, and when held in this position, the spring 24 is placed under stress, so that if the dot key is moved, and the V1- brator is released, it will be oscillated in a The sending keys are mounted for oscilla- The key 19 is used for the sendiiig of p 'for the passage of a screw 28, and on the with the plate by a helical compression horizontal plane until the energy of the spring 24 is exhausted.

At that ed e of the plate 25 o posite flange 26 is a orizontally disposed ar 35, the inner end of which is secured to the s rin 24, while its outer end is connected to tile p ate 25. This bar, which is preferably of non-circular form in cross section, carries a slidable block 36 which -may be adjusted to any position in-the length of the bar, and then looked in place by a screw 37. This block has a downwardly extending arm 38, that is recessed or slotted for the passage of a light spring 39, that is connected to the plate 24 at one end and carries at its free end a contact 40 formed of platinum or other mate- The s ring 39 normally rests against arial. stop 39 wien the vibrator is held from movement, and during the operation will yield inward or in the direction of the flange 26, and then will move back into contact with the stop 39.

' 46 by which it may be bowed in the direction The function of the block 36 is to determine the resiliency of the spring,

.and it may be adjusted to any position in the length of said spring.

Mounted on a suitable standard 43 carried by the base plate is an arm 44, to which is secured a spring contact 45 that is arranged to be engaged by the contact 40. The spring 45 is engaged by an adjusting screw backward, or in the direction of the flange 26,

moving some distance away from the stop 39. As the vibrator swings back, the contacts 40 and will remain in engagement with each other, until the spring 39 moves into engagement with the stop 39, then the further movement in the same direction car:-

ries the contact 40 away from the contact 45, and breaks the circuit. By this means the intervals of contact are properly determined for the sending of dots, the time the circuit is closed being equal to the time the circuit is open. The energy stored in the spring 24 is suflicient for the transmission of any number of dots used in any of the charator is suflicient for the transmission of a plurality-of dots, and these are sent at exact intervals, so that they may be correctly read on the sounder or other receiver, while the work of the sending operator is materially reduced.

I. In a telegraph key, a spring actuated vibratory member, a barcarried-thereby, a yieldable spring contact supported by the vibrator, and a block adjustable on the bat and having a notch or recess for the reception of the contact spring.

2. In a telegraph key, a spring mounted vibratory plate, a 'bar carried thereby, a contact spring, a block adjustable lengthwise of the bar and having a notch or recess for the reception of the contact spring, and means for locking s id block in adjusted position.

3. In a telegraph key, a vibratory member, a yieldable contact carried thereby, means for adjusting the sensitiveness of said yieldable contact, a second yieldable contact with which the first yieldable contact engages to make and break the circuit, an adj usting means for the second contact, and a manually operable lever normally holding the vibratory member from movement.

4. In a telegraph key, the combination with abase, of a bar carried thereby, a bridge piece mounted on the bar, bearings support-i ed by the bar, and bridge piece, key levers having trunnions mounted on the bearings, contacts under the control of said key levers for the sending of dots and dashes, respectively, the outer ends of' said key levers being arranged adjacent'to each other, and being provided with finger pieces for engagement by the operator.

In testimony that I claim the foregoing as my own, I have hereto afiixed my signature in the presence of two witnesses.

I MARK S. HALING.

Witnesses: V

J. H. Hlrcncoon,

C. H. STAUFF.

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