US1483669A

US1483669A - Telegraphic instrument

Info

Publication number: US1483669A
Application number: US485153A
Authority: US
Inventors: Walter S Lytle
Original assignee: Individual
Current assignee: Individual
Priority date: 1921-07-16
Filing date: 1921-07-16
Publication date: 1924-02-12
Anticipated expiration: 1941-02-12

Description

'Feb. 12, 1924;

W. S. LYTLE TELEGRAPHIG INSTRUMENT Filed July 16. 1921 3 Sheets-Sheet 2 INVENTOR WALTERS LJ TLE 38 BY I fl Q ,M ATTORNEY Feb 112 1924.

W. S. LYTLE TELEGRAPHIC INSTRUMENT Filed July 16, 1921 5 Sheets-Sheet 5 INVENTOR I mum? 5. LYTL MFW A TTORN Y Patented Feb. 12, 1924.

TENT FFICE.

WALTER S. LYTLIE, 0F PHILADELPHIA, PENNSYLVANIA.

frnnnenernic INSTRUMENT.

Application filed-Yul 16, 1921. .Serial No. 485,153.

To all whom it may concern:

Be it known that I. WALTER S. LYTLE, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Telegraphic Instruments, of which the following is a description.

This invention is animproved telegraphic instrument having characteristic capacities for use as a right or left hand semi-automatic or a Morse key, for simple adjustment of the dot making contacts in semi-automatic operation to correct usual defective action due to weather conditions and secure the distinct expression of characters, and for changing the semiautomatic features and regulating the operation so as to secure the strokes desired.

The invention, in a. preferred form thereof, is embodied in the instrument specified in the following description and the accompanyingdrawings in illustration thereof.

In the drawings, Fig. 1 is a top plan view of the instrumentadjusted for semi-automatic operations induced by the right hand of the operator; Fig. 2 is a top. plan view of the instrument adjusted for use as a Morse key; Fig. 3 is a top plan view of the instrument adjusted for semi-automatic operations induced by the left hand of the operator; Fig. i is aside elevation ofthe instrument in position for semi-aut0matic operation with the parts in the relation shown in Fig. 1.; Fig. 5 is a plan view of a detached key lever with oscillatory. connections; Fig. 6 is a side elevation of the instrument with the parts in the relation illustrated in Fig. 2; r 1g. 7 is a front end he instrument illustrated comprises the base 1 having mounted thereon the bearing 2 fixed intermediate its ends and thebearing elevation ofthe instrument with the parts in the relation illus- 3 either fixed or hinged adjacent. its rear end; the insulated conducting posts 4 intermediate its ends between respective opposite sides of the

bearings

2 and 3 and the insulated conducting posts 5 near its rear end on opposite sides of the bearing 3 the 1'-ea1 war'dly diverging conducting (contact bars 6 each connecting a post i with a post 5 on the same side of thebase; the insulated conducting posts 7 near the front end of the base and provided with the adjustable contacts 8, and the insulated conducting post 9,-between the posts 7 and provided with the contact 10, a conducting bar 40 connecting the posts 7 the base. i

Abent operating lever 11, having the contact 4.4 for engaging the respective contact 8 and 10 and the offset section 11' provided with the operating knob 12, passes through and is fixedto a disk or circular bearing 13 which is connected by pivots or journals 14: within a ring 15, the latter being journalled in the bearing 2. The ring 15 has fixed therein, parallel to its axis, a guide tube 16 provided with a longitudinal slot 16', and the tube has therein a, reciprocatory bolt 17 provided with a bent dog or catch 17 which and 9 andbeing insulated from extends laterally therefrom through the slot into position for engagement in the holes 2 of the bearing and holding the partsll, 13 and 15 with their connections, respectively in three positions at the middle and the ends of a semi-circular arc, a coiled spring 18'disposed on the bo'ltbetween its head and its guide tube acting to effect the automatic Engagement of the catch with the holes thereor. I j The lever 11 has fixed to its inner end a flat spring 19 which connects it with a bearing 20. A pair of parallel rods 21 have their inner ends held in the bearing 20, (detachably if desired, by. the set screw 22) and their outer ends fixed to ayoke 23,.the latter having fixed thereto the pin 24- oflset from the axis of the lever. The bearing 3 (which may be connected 'by the hinge 3 to the base 1 and held in" erected position by a spring 41) comprises a ring 3 having a bar 3 extending from its top throughits centre to a rounded terminusand an oppositely disposed rounded projection 3, with a passage 3 between them. The pin 24 projects into or through the ring 3 and is movable, by turning the lever 11, to a position in the space 3 between the

parts

3 and 3 or to positions on either side thereof at right angles thereto.

A weight 25 is adjustable along the rods 21 and is held in the desired position by a set screw 43. The weight 25 carries an adjustable screw 27 which is set inthe desired position by the nuts 27,, and the screw has fixed on one end thereof a coiled spring 28 which carries a contact 29. The contact 29 is adapted for engagement with either contact bar 6 at various positions along the length thereof by the adjustment of the weight 25 along the rods 21 and the adjustment of the lever 11 by turning it about its axis.

The ring 15 has fixed thereto, parallel to its axis on opposite sides thereof, the

bars

30 and 31. The bar 30 is provided with the adjustable screw .32 for engaging and lim iting the movement of the lever 11 in one direction and the bar 31v is provided with the adjustable screw 33 'for limiting the movement of the lever in theother direction.

Adjustable screws

34 and 35 in opposite ends of the bar 31 on opposite sides of the ring 15 carry coiled

springs

36 and 37 which act oppositely to retract the lever from its position in engagement with the screw 33 toward or in engagement with the screw 34.

A segmental plate 42, fixed to the bearing 2, is adapted-for engaging the

parts

16 and 31 to stop the rotation of .the lever 11 in its position for the right and left hand semiautomatic operations. I V

A switch lever 38, having the fulcrum 39 on thebase 1, is movable into and out of engagement with the plate 40 to connect and disconnect it and the posts 7 and 9 relatively to the base.

Conductors and 46 pass through a side of the base 1, respectively, to an electrical connection therewith and with the

posts

4, 7 and 9, these conductors being connected through the base to make a closed circuit by throwing the lever 38 into contact with the plate 40.

In operation, when the instrument is to be used in semi-automatic operation induced by the thumb of the right hand of the opera tor, the parts being in the position shown in 'Figs. 1. and 4, the movement of the knob 12 to the right throws the contact 29 into engagement with the left hand bar 6 and this contact is oscillatedwith the production of the desired number of dots rapidly, to make and, break the circuit repeatedly, depending on the length of time the knob is held to the right.

7 When the operator withdraws his humb from the knob 12, the

springs

36 and 37 act. on the lever 11 and through the intermediateoscillator to withdraw the contac-t29 so that it will not engage the adjacent bar 6, and to throw the contact 44 to ward the contact 8 of the left hand post 7,

the first finger of the right handbeing applied to the knob 12 to-press the contact 44 against the contact 8 to produce the desired dash or dashes. In this operation the pin 24 oscillates within the ring 3, to the left of the bar or finger 3*, by which the arc of the movement'of the oscillator is limited. It, owing to weather conditions or the touch of the operator, for instance, the contact between the

parts

6 and 29 does not produce the dots with sufiicient clearness and loudness, the oscillators weight 25 is moved along the rods 21'to adj ustthe length of the stroke and the force of the blow. with resulting change in the character of the contact and the effect in transmitting.

When the instrumentis to be used in semiautomatic operation induced by the thumb of the left hand of the operator, the bolt 17 is pressed in, the catch 17 is disengaged from the bearing 2, and the lever 11 is tnrnedthrough a half circle to the position illustrated in Fig. 3, when the pin 24 lies to the contact 44 with the contact 10,. to make .dot .ordash as may be required, the springs 36 and37 acting to disengage these contacts as in withdrawing the contact 44 from the corresponding contact 8.

Having described my invention,Iclaim:-

1. A transmitting telegraphic instrument having a base, a lever fulcrumed relatively tov said base and adapted to be oscillated in different planes, said lever having on oppo- Site sides of its fulcrum a relativelyfixed contact and. a relatively oscillatory contact, aplurality of contacts carried by said base and adapted respectively for engagement by the relatively fixed contact of said lever when oscillating in different planes, and a pair of contacts carried by said base and adapted respectively for engagement by said relatively oscillatory contact .when said lever is moved laterally in different positions thereof. I

2. A transmitting telegraphic instrument having a base, a bearing mounted thereon, a device journalled in said bearing, a lever fnlcrumed in said device. saidlever having a contact on one side of its fulcrum and on the other side thereof an oscillator provided with a contact, a contact device car- 1 ,asaoee engagement with said contact first named when said lever is moved laterally in opposite directions in different positions thereof, and contact devices carried by said base on opposite sides of said oscillator for engagement with said contact second named when said lever is operated laterally in opposite directions in different positions thereof.

3. A transmitting telegraphic instrument comprising a base provided with a bearing, a device journalled in said bearing, a lever lulcrumed in said device, means carried by said device for limiting the oscillatory movements oi and positioning said lever, means for fixing said journalled device in different positions and holding said lever in positions for oscillating laterally or vertically, and contact devices disposed on opposite sides of said lever and a Contact device disposed beneath said lever, with which contact devices said lever is adapted to engage when oscillated vertically or laterally in different positions of said journalled device.

4C. A transmitting telegraphic instrument comprising, in combination with contact devices, a journalle-d operating lever provided with an oscillator having a contact, means for fixing said lever in different positions for movements in vertical and horizontal planes, a pin carried by said oscillator eccentrically to the axis of revolution of said lever, and means for different positions of said lever to control the action of said oscillator.

In testimony whereof I have hereunto set my name this 21st day of June, 1921.

WALTER S. LYTLE.

engaging said pin in