US773374A

US773374A - Instrument for the teaching and practice of telegraphy.

Info

Publication number: US773374A
Application number: US9042902A
Authority: US
Inventors: Charles E Chinnock
Original assignee: Individual
Current assignee: Individual
Priority date: 1902-01-20
Filing date: 1902-01-20
Publication date: 1904-10-25
Anticipated expiration: 1921-10-25

Description

BEST AVAILABLE COP No. 773,374. PATBNTED OCT. 25, 1904.

. C. E. GHINNOCK.

INSTRUMENT FOR THE TEACHING AND PRACTICE OF TBLBGRAPHY.

APPLICATION FILED JAN. 20. 1902.

3 SHEETS-SHEET 1.

"no 110mm.

WITNESSES: q

A i; '"f

INSTRUMENT FOR THE TE BEST AVNLABLE PATBNTED OCT. 25, 1904. o. B. GHINNOGK. AGEING AND PRACTICE OF TBLEGRAPHY.

APPLICATION I'ILBD J11. 20. 1902.

, N0 MODEL.

8 SHEETS-SHEET 2.

' H15 ATTORNEYS BEST'AVAIL/QBLE COP" PA TENTED OCT. 25

G. E. CHINNOGK. INSTRUMENT Folk-THE TEACHING AND PRACTICE OF TELEGRAPHY.

APPLICATION FILED JAN. 20. 1902.

H0 MODEL.

*tion on the line 8 8 of Fig. 1.

ees A\/ mutate cos UNITED STATES Patented October 25, 1904 PATENT OFFICE.

INSTRUMENT FOR THE TEACHIN G AND PRACTICE OF TELEGRAPHY- SPECIFICATION forming. part of Letters Patent No. 773,374, dated October 25, 1904. Application filed January 20, 1902. Serial No. 90,429. (No model.)

State of New York, have invented a new and useful Improvement in. Instruments for the Teaching and Practice of Telegraphy, of which the following is a specification.

1 will describe an instrument embodying my improvement and then pointout'tlie novel'fear" tures in claims. i

In the accompanying drawings, Figure 1 is.

a top view of an instrument embodying my improvement. Fig. 2 is an elevation of one side of the same. Fig. 3 is an elevation of the other side of the same. Fig. 4 is an elevation of certain parts at the plane of the dotted line L 4, Fig. 1. Fig. 4* is an inverted plan of the disk actuating gears. Fig. 5 is an inverted plan of the star-wheel and pinion of Fig. 4.j Fig. 6 is a top view of a telegraphic sounder'to be used in connection with my instrument. Fig. -7 is a view in elevation, partly in section, on the line 7 7 of Fig. 1. Fig. 8 is a sectional eleva- Similar letters of reference designate corresponding parts in all the figures.

A designates a numberof disks; preferably made of metal and secured together one above" the other upon a tubular shaft B',"rising from a collar C, and made of such form that it will protrude above the uppermost disk A; so that it may be engaged with a device for holding" the disks in place. As shown, its protruding portion is externally screw-threaded and has engaged with it a nut D. The tubular shaft B surrounds a stationary stud B', 'and the collar O rests upon a hub or cylinder B which rises from a metal base-plate N. Preferably a disk E will be loosely slipped onto the tubular shaft before applying the nut to the latter.

With the disks is combined a gear-wheel F. As here shown, it is afiixed to the collar 0, and hence it transmits rotary motion to the disks A. This gear-wheel engages with either one of two small gear-wheels G G (see Figs. 4: and 8,) mounted up'on studs or screws fastened to a collar g at the lower end of a sleeve G. The upper end of the sleeve G is provided with a collar G and from this extends an arm g by which the sleeve may be oscillated to bring either of the gear-wheels Gr G into engagement with the gear-wheel F. The sleeve Gris supported in a bracket H, rising from the baseplate N. A pinion 1, arrangedat the end of ia-shaft l',fwhich passes through and is supported by the sleeve G, so that it will be ;free to rotate independently of said sleeve, isin engagement with the gear-wheel Gr, as shown inFigQ PQ In Fig. 8 the wheels Gr Gr are partly broken away to show the pinion l behind? The shaft 1' while rotating constantly in one direction will be capable of rotating the disks A in reverse directions, according to which of the two gear-wheels G G is put into engagement with the gear-wheel F by oscillating the sleeve G by turning the arm to the right or to the left. The upper end of the shaft 1 has affixed to it a pulley J which will preferably be provided witha hand-crank j. A belt K passes around this pulley and also around a pulley L, which is comprised in an-electromagnetic generator L. V

The several disks A are externally provided with projections corresponding to letters of the Morse alphabet. Opposite them is an electric circuit-breaker M, which is supported so that it may be adjusted vertically to a position opposite any one of the disks. It has a main part m and a relatively movable part m. The latter ha's a tendencyto move outwardly away from'the former and is provided with a projection'm which will coact with the projections on the opposite disk A in such manner that as each projection passes it that projection will press the movable part m of the 'circuit breaker against the other part, m, of the circuit-breaker and hold it there for a period corresponding with the length of the projection. The tendency'of the relatively movable part m of the circuit-breaker to outward movement may be varied by means of a screw m impinging against it and engaging with a tapped hole in the main part m. The free end of the relatively movable part m. of the circuit-breaker coacts with a contact-point m, which extends through the main-part m of the circuit-breaker. It is, however, insulated from the part on of the"circuit-breaker. This contact-point is made in the form of a screw and passes through a hole in the main part m of the circuit-breaker without touching the latter. A block of insulating material m is fastened to the main part we of the circuit-breaker adjacent to the said hole and to this block of insulating material a metal piece m is fastened. The screw m engages with a tapped holein this metal piece m. It may be therefore adjusted toward and from the movable part on of-the circuit-breaker.

A nut m is combined with the'screw toclamp it in position.

The main part m of the circuit-breaker is secured to the lower end of a metal carrier m which fits loosely upon a metal rod m, so'as to be free to slide vertically upon the same. The metal piece m extends into the grooven of a metal post m rising from the base-plate N, in which groove said piece m slides freely up and down. A spring m, fastened to one side of the metal piece m, bears against one part of the groove, so as to insure electrical contact with the post m This metal post m is insulated from the base-plate N.- At

. the top of the carrier m is a metal gross-bar m, preferabl y provided on its under side w ith an antifriction roller or ball m, which bears upon the top of a metal cam O, affixed to a metal shaft 0, also having a metal gear-wheel O affixed to it and mounted to turn freely upon a metal stud O supported by a metal post O, extending upwardlyfrom the baseplate N.

The cam O raises the circuit-breaker M and permits it to be lowered by gravity. gear-wheel O engages with a pinion Oiaflixed to a shaftO", rotating freely about a stud 0 The" wire, such as German silver) and which is connected-at one end by a wire p with the binding-post 12 According to the position of the switch-arm 19 upon the coil 3) so will vary the amount of wire 1) in circuit.

R designates a battery one pole of which is connected by a Wire to a binding-post 1-. The electric circuit from the latter is extended by a Wirer to the post m The other pole of the battery R is connected by a wire 1' with a binding-post *1" of a telegraphic sounder S and key T. The other binding-post, 7"", of the telegraphic sounder is connected by a wire with the key T and by Wire 2' with a binding-post 7 The circuit from the latter is extended by a 'wire 1' to the base-plate N, with which the circuit-interrupting disks A are in electrical connection.

Not only may the speed of the rotation of the disks A be varied by manipulations of the switch-lever p and the direction of their rotation be reversed by manipulations of the arm fand messages be changed by the means described for altering the relation between the circuit-changer and the different disks A,

but the disks themselves may be rotated by hand relatively to each other, so as to adjust them in different relations in order that when the circuit-changer ceases to operate with one and begins to operate with another it may bethe disks may also be turned upside down and subsequently adjusted into relation with each fastened to the postO. This stud Ocon the tubular shaft B or other suitable means stitutes the support for the metal rod m 'The shaft 0 has afiixed to it a pin-Wheel orstar- Wheel 0*, with which coacts an arm G, extending from the collar 0. so that for every rotation of the disks A the star wheel Q will be rotated sufficiently to 'eause the cam O to adjust the circuit-breaker M vertically from a position opposite one of the disks to a position opposite one of the others.

P designates a battery one pole of which is connected with a binding-postp and the other pole of which is connected to the bindingpost p upon a board Q, forming the base: pieceforthe electromagnetic generator L.

.This base-piece Q, is mounted upon a basepiece Q and the latter has the base-plate N arranged upon it. A screw and nut Qf'se cure the base-pieces Q and Q together. In the base-piece Q, is a slot through which the screw passes, and this slot extends in such direction as to provide for adjusting the basepiece Q relatively tothe base-piece Q for the purpose of tightening or loosening the belt K. From the binding-post p a wire p extends the circuit to one brush'of the electromagnetic generator L. The other brush of that motor is in electrical communication with a wire 19*, which extendsto aswiteh-arm 29 which may be moved over a resistance de- "vice, (here shown as consisting of a 001119 of f for firmly securing the disks in fixed relation ito'ea'ch other.

The operation of the instrument may be briefly described as follows: The proper electrical connectionsbeing established, the operator shifts the pinionsGr Gr for proper engagement with the large gear-wheel F accord- {ing to the'direction of rotation to be imparthand-wheel J is now turned, with the result that the disks are rotated around the shaft B, causing the projections on the edge of one of t the disks to cooperate with the circuit-breaker M, and thus sound one at a time the characters for which the projections stand and pro ducing thereby a telegraphic message.' As the projections on one of the disks run out the arm C" comes in contact with the starwheel'O which through the medium of the pinions and gear-wheel O O operates the cam O, which cam, acting on the roller m shifts the'circuit-breaker to the next disk forv cooperation with the projections thereon to produce telegraphic sounds upon the continued rotation of the hand-wheel J in the same manner as before. What I claim as new, and desire to secure by Letters Patent, is

1. In an instrument for the teaching and practice of telegraphy, the combination with 'gin'atadifi erent point upon the other, and

othei'by means of the nut D coacting with ed to the group of disks A. The pulley or' essr AvAaAsLe cosa number of detachable parts arranged in any desired order side to side and provided on edges with projections for producing a tele graphic message, and means for moving said parts in the direction of the length of said edges continuously throughout the series, of a circuit-breaker constructed to coact with one of said parts at a time, and means for producing a relative movement between said parts and circuit-breaker so that any one of the parts may coact with the circuit-breaker.

2. In an instrument for the teaching and practice of telegraphy, the combinationwith a number of detachable parts arranged in any desired order side to side and provided on edges with projections for producing a telegraphic message, and means for moving said parts in the direction of the length of said edges continuously throughout the series at any speed, of a circuit-breaker constructed to coact with .one of said parts at a time, and means for producing a relative movement between said parts and circuit-breaker so that any one of the parts may coact with the circuit-breaker.

3. In an instrument for the teaching and practice of telegraphy, the combination with a number of parts arranged in any desired order side to side and provided on edges with projections for. producing a telegraphic message, and means for moving said parts in the direction of the length of said edgescontinuously throughout the series in reverse directions, of a circuit-breaker constructed tocoact' with one of said parts at a time, and means for producing a relative movement between said parts and circuit-breaker so that any one of the parts may coact with the circuit-breaker;

4:. In an instrument for. the teaching and practice of telegraphy, the combination with a number of parts arranged side to side and provided on edges with projectigns for producing a telegraphic message, and means for moving said parts in the direction of the length of said edges at any speed, in reverse directions, of a circuit-breaker constructed to coact with one of said parts at a time, and means for producing arelative movement between said parts and circult-breaker so that any one of the parts may coact with the circuit-breaker. V

r 5. In an instrument for the teaching and practice of telegraphy, the combination with BEST AVAlLABLE COP" practice of telegraphy, the combination with a number-of disks arranged side to side and provided peripherally with projections for producing a telegraphic message and means for moving the disks in their own planes and about an axis, of a circuit-breaker constructed to coact with one of said disks at a time, and to engage the several disks in succession and automatically throughout the series, and means for producing a relative movement between the disks and circuit-breaker so that any one of the disks may coact with the circuit-breaker.

7. In an instrument for the teaching and practice of telegraphy, the combination with a number of parts, arranged side to side and provided on edges with projections for producing a telegraphic message and 'means for moving said parts in the direction of the length of said edges, of a circuit-breaker constructed to coact with one of said parts at a time, and means comprising an arm moving with said parts, a star-wheel operated by said arm, once for each movement of said parts, and a cam operated by said star-wheel to produce a relative movement between said parts and circuit-breaker so that any one of the parts may coact with the circuit-breaker.

8. In an instrument for the teaching and practice of tele-graphy, the combination with a number of parts arranged side to side and provided'on edges with'projections for producing a telegraphic messTgejmeans for supporting them in such position that they may be adjusted to have parts-,of the length of one opposite different parts of the length of another, and means for moving said parts in the direction of the length of said edges, of a circuit-breaker constructed to coact with one of said parts at a time, and-means for producing a relativemovement between said parts and may coact with the circuit-breaker.

9. In an instrument'for the teaching and practice of telegraphy, the combination with a number of parts arranged side to side and provided on edges with projections for producing a telegraphic message', means for supporting them so that one may be turned upside down to rearrange it in relation with another, and means for moving said parts in scribing witnesses! CHARLES E. CH INNOCK.

circuit-breaker so that any one of the parts V