US871726A - Telegraphone system. - Google Patents

Description

No, 871,726. PATENTED NOV. 19, 1907. G. MORIN. TELBGRAPHONE SYSTEM.

APPLIOATION'FILED JAN. 30. 1907.

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INVEN TOR ([5 01 -y&*

WITNESSES PATENTED NOV. 19, 1907.

G. MORIN. TELEGRAPHONE SYSTEM.

APPLICATION FILED JAN. 30. 1907.

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ATTORNEYS PATENTED NOV. 19, 1907. G. MORIN. TELEGRAPHONE SYSTEM. APPLICATION FILED JAN. 30. 1907.

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Arm/m5 rs I PATENTED NOV. 19, 1907. G. MORIN.

TELEGRAPHONE SYSTEM.

APPLICATION FILED JAN. 30, 1907.

W/T/VESSES m6 PATENTED NOV. 19, 1907.

G. MORIN. TBLEGRAPHONE SYSTEM.

APPLICATION FILED JAN. 30. 1907.

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INVENTOH I G'eorg'e fibrin .8) a g WITNESSES ATTOHNE rs I No. 871,726.

PATENTED NOV. 19, 1907. G. MORIN. TELEGRAPHONE SYSTEM.

APPLICATION FILED JAN. 30. 1907.

W/ 7' NE SSE S Arromve'fs preventing undue waste 0 GEORGE MORIN, OF HABANA, CUBA.

TELEGRAPHONE SYSTEM;

Specification of Letters Patent.

Patented Nov. 19, 1907.

application filed January 3Q. 1907. Serial No. 354.822.

I tem's, my more particular objectbeing toso connect the telegraphone with line wires as to enable the instrument to be easily con trolled from a distance.

My invention further relates to provision for preventing undue waste of the available record s ace upon the movable -member bearing t e record.

My invention further relates to means whereby a person may leave a telegraphone in such condition that during absence of the person the telegraphone will automatically receive a'messag'e intended for the person and will, under pro er conditions, reproduce this message care-fu 1y. i I

"My invention further relates to certain details of construction whereby the general efiiciency of the telegraphone and parts associated therewith are generally improved.

Reference is, to be had to the accompany: ing'drawings -forming a part of this specification, -in which simllar characters of reference indicate'corresponding parts in all the figures.

"Figure I is a diagram showing the wiring of my system, a delicate relay connected with this wiring and adapted to be actuated by the human voice for the purpose of controlling certain movable parts and thereby the sound record of the telegraphone, this view also showing means operated electricallyfrom a distance for startmg the telegraphone into act-ion and for, stopping its actlon upon the expiration of a predetermined time limit; Fig. 2 1s a side elevation showing a part of the teleglraphone mechanism and casing containing t e same, certain parts being broken away. Flg. 3 1s a horizontal section through the casing showing the telegraphone mechanism in cluding a revoluble dlsk sound record, means for cont-rolling a travellng carriage, and travcling magnetic mechanism co-acting with this record; this view further shows the reiay above mentioned, and also a part of the means'for starting and stoppingthe teleg- 55 raphone; Fig. 4 is an enlarged fragmentary section upon the line 44 ofiFig. 3, looking in the direction of the arrow and showing the record disk, the magnetic mechanism coacting therewith. for recording and reproducing sounds, and mechanism controllable from a distance for stopping and starting the travel of this magnetic mechanism; Fig. 5 is a plan partly in section, showing the relay controllable by the human voice for governing the motion of the magnets 35 relatively to the center of the disk 22; Fi 6 is a vertical section upon the line 66 0 Fi 5, looking in the direction of the arrow an showing the contact forming a part of the relay 75, this contact being opened and closed: by sound controlled agency from a distance; Fig. 7 is a perspective of the armature of the relay 75, this armature being controllable by so-called magnetic drag; Fig.- 8 is an enlarged fragmentary elevation of the mechanism operated electrically from a distance for stoppmg and starting the spring motor of the telegraphone, the casing 10 in this view bee ing shown in section and Fig. 9 is an enlarged fragmentary lan of the'worm 71 and worm gear used or turning the screw 59 (see Fig. 8) incidental to stopping and starting the spring motor of the telegraphone.

A casing 10 is, by aid of hinges 11, mounted upoma base 12. Contained within the casing 10'is a ring motor 13 including variousgear whee s 14, 15, and a winding shaft 16, the latter being provided with an outwardly extending portion 17 and with a hand crank 18 whereby the spring motor may be wound in the usual manner. The spring motor also includes a bevel gear 19 which meshes with a bevel pinion 20; the latter being rigid upon a revoluble shaft 21. A record disk is shown at 22 and is of the so-called magnetic type: This disk is mounted firmly upon the shaft 21 and turnswhen the latter rotates. Mounted firmly u on the shaft 21 is a worm gear 23 which mes es with a worm 24. A governor is shownat 25 and is provided wlth a revoluble disk 26, the governcr and disk being actuated by a shaft 27 inte gral with the worm 24. A spring contact 28 1s located 'ust below the disk 26 and is opened an closed .by movements of this disk in the general direction of the axis of the governor shaft 27. When the shaft turns,

the governor pulls the disk 26 to the left accordm to the view shown in Fig. 5 and this closest econtact 28. Hence, while the telegllO ' nivot 43 as a center.

raphone is in action, the contact 28 is closed, whereas this contact is opened when the telegraphone is idle.

Mounted rigidly upon the revolublei shaft 21 is a bevel gear 29 which meshes with a bevel gear 30 mounted rigidly upon a revoluble screw shaft 31. A bracket 32 is located below the screw shaft 31 and is provided with lugs 32*" disposed upon op osite sides of the screw shaft 31. Practica y speaking, therefore, the bracket 32 has its upper end bifurcated so as to straddle the screw shaft.v

' engaging the disk 22 so as to confer thereupon or to receive therefrom magnetic impulses corresponding to sound vibrations. A limiting stop 38 (see Fig. 3) prevents excessive travel of the U-shaped spring 36 in one direction. A stationary bracket 39,

having substantially the form of a Wedge, is

employed for the purpose of spreading the 'U-shaped spring 36 whenever necessary, in order to adjust the tension or position of'the pointedcores 37 relatively to the disk 22.

For this purpose a handle 40 (see Fi 3) is provided; the operator merely p s the handle outwardlyso as to force the Ushaped spring member 36 astride of the wedge 39 and thus distend the U-shaped member to any desired extent, the distension being continued until the U-shaped member lodges against the limiting sto '38. A comparatively stiff rod 41 exten slengthwise of the casin Mounted upon this rod 41 is a tubular slide 42 connected ri idly with the bracket 32 (see Figs. 2 and 4). Mounted upon a screw pivot 43 is a rocker44 to which the blade'33, above described, is ri idly secured. This blade is provided wit a concave edge. 45 which is, in effect, a fragmen tary threaded put adapted to engagev and disenga e the screw shaft 31, so as. to force the bla e 33 and all parts connected with it, in a general direction parallel with that. of

the screw shaft.

A leaf sp 46 is mounted upon the bracket 32 :35 engages the edge of the rocker 44. a This rocker is provided with a slot 47 through which passes a screw 48 engaging the bracket 32. rocker-44 to tumor rock slightly u. on the "In oing. t 's the rocker brings the edge or thread 45 into and Y out of engagement with the screw shaft 31,

as above described. I Mounted rigidly upon This allows the the lower end of the rocker 44 is an'armature 49 adapted to be attracted and released by the magnet 34. The lower end of the bracket 32 is connected by a pivot 50 with the U-shaped member 36. This allows the U-shaped member a little freedom and widens its adaptability to conform to accidental variations in the shape of the disk 22, due, for instance, to unavoidable distortion or buckling of the latter. It also allows ease of movement of the bracket 32 and.

tubular slide 42 relatively to the rod 41.

I It will readily be seen that whenever the magnet 34 is energized, the screw shaft 31 being in motion, the bracket 32 and all parts connected therewith, including the magnets 35, must begin to travel toward the center of-the disk and that this travel must cease when the magnet 34 is denergized (see Fig. 4). It will also be seen that the disk, may rotate continuously although thetravel of the magnets 35 may be intermittent.

The disk 26, carried by the governor 25 (see Fig. 1), inaddition to openin and closing the contact 28, serves as a bra e disk for stopping and starting the action .of the spring motor. To this end a brake shoe 51 is mounted upon a brake rod 52, the latter being rigidly connectedwith a rocker shaft 53 and provided with a rigid portion 54 extending beneath an adjusting screw 55. By turning the'screw 55, the play of the brake rod 52 and brake'shoe 51 may be controlled within different limits. A spring 56 tends to retract the brake rod 52 and to remove the brake shoe 51 from engagement with the disk 26 whenever the shaft 53 is rocked in the proper direction for so doing.

Mounted upon the rocker shaft 53 is another brake rod 57 provided with a'concavebrake shoe 58. Disposed beloW- this brake shoe 58 and adapted to engage the same, is .a screw shaft 59 provided with aslot 60 extending throughout a good portion of its length. A threaded shoe 61, constituting in effect a fragmentary nut, is adapted to engage. and disengage the screw shaft-59. The shoe 61, together with an armature 62 is mounted upon a bell crank lever 63, the latter being movable and provided with a retracting spring 64. A magnet 65 is disposed adjacent to the armature 62, and, when energized, draws the same. It will be seen that when the magnet 65 is energized, the

threaded shoe 61 is removed from the screw shaft 59, and that when the magnet 65 is de.

energized, the retracting spring 64 instantly throws the threaded shoe 61- into engagement with the screw shaft 59.

A; tube 66 (see Fig. 8) is fitted with an. adjusting screw 67, and for this purpose is provided internally with threads68. This tube is mounted upon a bracket 69. A worm gear 70 meshes with a worm 71., the latter eing integral with a revoluble shaft 72.

shaft rotates within a bearing-"73 forming a part of a bracket 74 (see Fig. 9). The

' upper'end of the tube 66 is smooth and the' movement of the screw shaft.

When the motor 13 is in action, the shaft 72 and worm 71 rotate and cause the worm gear 70 toreturn. This gear is provided with a spline 70 (see Fig. 9) which fits into the slot 60. The relation of the gear 70 to the screw shaft 59 is, owing to the action of the spline, alittle peculiar. When the gear 7 0 turns, the spline 7 0 causes the screw shaft 59 to turn at the same rate of speed .25 as the gear 70, but at the same timeleaves the screw shaft 59 free to ascend, descend, or to remain at a given altitude, as the case may. he. If, now, the threaded shoe 61 hap pensto be in engagement with the screw shaft 59, the rotation of the latter, of course, causes it to climb or to rise relativel to the shoe 61, and if at any time the t eaded 1 shoe 61 be'withdrawn by action of the magnet 65 upon the armature 62 (see Fig. 7) the screw shaft 59 dro s abruptly down ward until stopped by t e adjusting screw 67.. Hence, all that the ear 70 does is to turn the screw shaft 59 in ependently of the altitude thereof, and all that the m net 65 40 does, actin through the threaded s 0e 61,

is to cause the screw shaft 59 to rise gradual] or to fall abruptly as the case may be. It, now, the magnet 65 he deenergized so that -the threaded shoe 6] rests in engagement #5 with the screw shaft 59; for a predetermined length of time, say five minutes, the screw shaft 59 rises untilitreaches the brake shoe 58 (see Fig. 8). It thereupon causes the rocker shaft 53 to turn, and this movement brings the brake shoe 51 against thefriction disk 26, thereby stopping the motor. By "moving the adjusting screws 55, 67 the pre cise duration of the movement, before the motor is stopped, may be varied within cer- 55 tain limits; In Fig.9.5 is shown the magnctic. drag relay, controllable electrically from a dis- -tance for the purpose-of energizing and deenergizing the circuit-through the magnet 34,-and bydomg this, to exert control over movementsof the telegraphone niagnets 35. The relay magnet is shownat- -and is mounted upon a bracket 75. A ncvoluble disk 76- is madc of magnetic material and 65 constitutes the armature for the magnet 75.

. just the reverse of the action of the This disk is provided with a sleeve 77 integral therewith and encircling the governor shaft 27 A hub 78 also encircles the governor. shaft but is immovable relatively.

thereto. A pair of lugs 79, 80, of the shaft,

indicated in Fig. 6, are provided. Revoluhly mounted upon the lug 79 is an adjusting contact screw 81. Another screw 82 is mounted upon and "movable in relation to.

the lug '80. These lugs 79, are secured rigidly upon a disk 83 of insulating material,

this disk being provided with a radially disposed slot 83, as will be understood from A set screw 84 permits removal of the hub 78 and yet maintains the hub rigidly in position when in use. A springtongue 86, preferably of platinum, is mounted rigidly upon the revoluble disk 76 and engages the hub 78, as will'be understood from Fig. 5.

The arrangement of these parts is such that the rotation of the disk 76 may be retarded slightly and the governor shaft 27 and hub 78 may turn ahead a slight fraction of a revolution, the shaft 27 bein loose as compared with the disk 76. In other words, the revo lution of the contact sprin 86 constitutes an elastic connection from tlie disk 76 to the shaft 27 and parts connected therewith, so that the relation of the shaft 27 and disk 76 is only approximate asto relative position. Now,.as indicated in Fig. 6', the spring tongue 86 normally engages the contact screw 81. If, however, there be a slight motion of the disk 76, the contact screw contact is broken and when the magnet is deenergized, the contact is closed, this being ordinary telegraphic relay.

By means of screws 85 the disk 83, of insulating material, is at all times maintained rigid in relation to the hub 78. -In fact, all parts immediately connected with the shaft 27 rotate therewith and are rigid in relation thereto, aside from the flexibility of the coupling hetween the disk 76 and the shaft, as above described.

Brushes S7, '88 are disposed adjacent to eachother, the brush 88 being in electrical communication with the hub 78 and contact spring 86, the brush 87 engaging a slip ring 89, as will understood from" Fig. 5. The brushes 87, 88 are the terminals of the local circuit of the relay, the main circuit thereof being through the magnet. 75. The

action of the relay is quite simple. The

magnet 75being energized, the disk 76 is drawn toward it and its rotation slightly rctardod by its friction against the ma net cores. The shaft 27, continuing its rota ion in the direction indicated by'the. arrow in Fig. 6, causesthe contact screw 81 to break engagement with the contact spring 86.

the circuit through brushes 87, 88.

Referring again to Fig. 1, a telephone may be seen at 90 which is preferably ofconsiderable power. From this telephone line wires 91, 92 lead to binding posts93, 94. Adjacent to these binding posts are others 95, 96, and connected withthe two latter are wires 97, 98 anda telephonic receiver 99. From the binding post 93 a wire 100 leads to a contact, button 101. Another contact wire 101 is connected by a wire 102 with the magnet 65. From the latter a wire 103 leads to the relay magnet 75 and from this magnet wires 104, 105, 106, 107 lead down to binding posts 94, 95. Wires 108, 108 are connected with the telephone magnets 35. A wire 109 connects the wire 108 with a switch blade 110.. A contact button 111 is disposed in the path of this switch blade. From the contact button 111 a wire 112 leads upwardly and connects with a wire 113. The latter leads toa contact spring '114 adapted to engage and disengage another contact spring 115; this last contact spring 115 is connected by a wire 116 with themagnet 34 used as above described, for controlling the travel of the telegraphone magnets 35. From the magnet 34 a wire 117 leads upwardly to the brush" 87. The other brush -88 is-connected by a wire 119 with the, contact 28. From the latter wires 120, 118 lead to a local battery 121 This battery is connected by wires 122, 123 with a pole changer 124; this pole changer has contact buttons 125, 126, 127. The contact 'buttons 125,

127 are connected with a wire 128, the latter beingin turn connected with wires 112, 113. The contact button 126 is connected by a wire 129 with wires 105, 125. The switchblade 110 is provided with an insulated boss 110 for forcing the contact spring 114 against the contact spring 115, as will be understood from the lower left hand corner of Fig. =1.

The action of my system is as follows: We

will suppose that the mechanism shown in. Fig. 1, with the exception of the telephone 90 50.

and line wires 91 92, represents the outfit of a subscriber, and that the latter wishes to absent himself'and have the system take down any messa e which may be sent during his absence. Tie moves the switch bladel 10 into the position indicated, thereby causingit to close contact between springs 114, 115.. The spring motor we will suppose is properly wound 11p and, it makes no difference whether'it be left runningor idle. If it be left runnin the rotation of the screw shaft 59 raisesthe atter until it engages the brake shoe 85, thus causin the rocker shaft 53 to turn and bring the s 0e 51 against the disk 26, thereby preventing further rotation of the motor. This occurs in a fewminutes, if

the switch blade 110 is placed in the position the apparatus in indicated in Fig. 1 and stain quo until the call is made. Suppose now that a subscriber at the telephone '90 wishes to make a communication. To all intents and purposes he rings in theusualbutton 101, switch blade 110, contact button 101, wire 102, magnet I call this for-convenience the starting magnet) wire 103, relay magnet 75, wires 104, 105, 106, 107, bind ing post 94, line wire 92, back to generator of telephone 90. This energizes the starting magnet 65 and causes it to attract its arma- The screw shaft 59, being new unture 62. supported, drops down upon the screw-67 (see Fi s. 1 and 8). The pressure a ainst the 'ra e shoe 58 being now relieved, t e retracting spring 56 causes the withdrawal of the brake shoe 51 from the disk 26. The spring motor mechanism now starts, having been previously wound, above explained. When the motor mechanism starts, the governor 25 is thrown into action. This causes the disk 26 to move laterallyto the right, according to the view shown in. Fig. 1, and closes the contact 28. The telegraphone is now in full action, except with reference to movements of the telegraphone magnets 35 and parts carrying the same. Whether or not these magnets 35' and parts carrying the same are in motion must depend upon the position i of the rocker 44' (see Fig. 1) and this must in turn'depen'd upon whether the circuit through themagnet 34 is or is not completed",

the completion of this circuit being ultimately controlled by the electrical conditionof the relay magnet 7 5, as above explained.

The calling subscriber now begins to talk and. inso doing he sends talking currents 'over' the following circuit: telephone 90, line wire 91., binding post 93,: wire 100, contact button 101, switch blade 110, contact button I01,

; wire 102, magnet 65, wire 103,- relay magnet 75, wires 104, 105, 106,107, binding post 94, line wire 92, back to telephone 90. This circuit is identical with the one above traced,

with the exception that at the tele hone 90,

it is the talking circuit instead of t e ringing circuit) The talking circuit, however, being weaker, as usual, than the ringing circuit, is unable to have much effect upon the magnet 65- and consequently is unableto cause this magnet to withdraw the shoe 61" from en'- agement with the screw shaft 59. The reay magnet 75 being more sensitive, however,- is energized by the talking currents and the v disk 76 is attracted.

Owing to the magnetic drag, above described, the disk is retarded and as the shaft 27 rotates under propulsion from the s ring motor, the contact is broken between t e contact spring 86 and the contact screw This opens the local circuit which is as follows: Battery 121, wire 122, righthandmember of the pole changer 124, contact button 125, wire 128, wire 113, contact springs 11.4, 115, wire 116, magnet-34,

wire 117,-brush S7, slip ring 89, lug 79, contact screw 81, contact spring 86, hub 78, brush 88, wire 11'9, contact 28 (now closed), wire 120, wire 118, back to battery 121. The battery circuit being thus opened, it follows that the magnet 34 must release its armature 49. This causesthe rocker 44 to move under impulse from the leaf spring 46 (see Fig. 4) and therefore throws the fragmentary nut 45 into engagement with the screw shaft 31. slide 4 2, and telephone magnets 35 now begin. to move toward the center of the record disk. If the talking subscriber continues his conversation quite steadily,- there is no interruption of the motion of the telegraphone magnets 35. Slight pauses between the words and at the ends of sentences are not sufficient to interfere with the action in the-slightest degree, for .the reason that the magnet 34 can not be deenergized until the circuit is opened between the contact spring 86 and the contact screw 81 (see Fig. 6) and this can not occur unless the voicecontrolled currents through the line are stopped for a little period of time, sufficient tore resent the length of time during which the s raft 27 can travel without causing the electrical connection to break. In any conslderable pause 1n conversation, however,

the electrical connection is broken for the nets 35 are enabled to travel.

reason that the contact screw 81 moves away from the contact spring 86. When this occurs, the local circuit, above traced, is again completed, the rocker 44 assumes the position indicated in Fig. 1, and the mag- As soon, however, as the talking subscriber resumes his conversation, the magnet 34 is-deener- I travel.

than would be recorded under conditions where. the telegra hone magnets would'continue to travel uring intervals while the sounds were not being produced. During all the time while the record is being made the screw shaft 59 continues to rise, as above described until it lodges against the brake shoe 5S, and this action, as above described, turns the rocker shaft 53 and applies the brake shoe 51, seas to stop the action of the The bracket 32, tubular the polarity of the battery 121 for service, the idea being that, when a call is made, the telegraphone will be thrown into action and its action will continue for a predetermined period,-say five minutes. Sup pose now that the absent subscriber returns and wishes to ascertain what message, if any, has come while he was away. He turns the switch blade 110 (see Fig. 1) to the right and into en ageinent with the contact button 130. T 's breaks communication between contact springs 114 and 115, thus 0 eni the circuit through magnet 34. Be ore iloing this, however, he adjusts the magnets 35 in the usual manner so as to enable the telegraphone to act as a reproducer. The switch blade 110 now resting upon the contact button 130, the following circuit is completed: Switch blade 110, contact button 130, wire 131, binding post 96, Wire 97, receiver 99, wire 98, binding post 95, wire 106, wire 108, tele 'raphone magnets 35,wire 108, Wire 109, bac to switch -blade 110. This circuit is energized by the magnetic action of the disk upon the magnets 35, and, of course, the operator is enabled to read from the receiver 99 the reproduction of the sounds representing the message recorded. If, as is usually the case, the subscriber now wishes to erase the ma netic record from the record disk 22, he simpfiy turns the switch blade 110 to the left, causing it to engage contact button 111. This movement breaks connection between the contact springs 114, 115, and completes the following circuit: Battery 121, wire 122, right-hand member of pole changer 124, contact button 125, wire 1'28, wire 112, contact button 111, switch blade 110, wire 109, wire 108, telcgraphone magnets 35, wire 108*, wire 106, wire 105, wire 129, lefthand member of pole changer 124, and wires 12 3 and 118, back to battery 121. This energizes the magnets 35, and by causing them to act powerfully upon the record disk 22, the magnetic impressions upon this disk for representing sound vibrations are effectively erased. During this operation the disk 22 rotates and the magnets 35 travel in the same manner as if the machine were reproducing or recording.

I find it sometimes expedient to reverse urposes of removing magnetic im rcssions om the disk 22. In order to do t is, I simply shift the ole changer 124'to theleft, meanwhile turning the switch blade 110, thus completing the following circuit: Batter 121, wire 112, right-hand member of pole c anger 124, wire 129, wire 105, wire 1'06, wire 108, magnets 35, wires 108, 109', switch blade 110, contact button 111, wires 112, 128, left-hand member of pole changer 124, wire 123, wire 118, back to battery 121. i

Having thus described my invention, I

claim as new and desire to secure by Letters Patent:

1. In a system of the character described, the combination of a movable recording member, means for actuating the same, magnets movable in relation to the general. position occupied by said recording member for the purpose of impressing a record thereupon, and sound wave controlled mechanism for stopping and starting said last-mentioned mechanism independently of movements of said movable recording member.

2., In a system of the characterdescribed, the 'combination'of a movable recor'd-receiving member, mechanism for impressing a record thereupon, motor mechanism for propelling said recording member, and electrically operated mechanism controllable at will by sounds at a distance for stopping and starting, relatively'to said recording member, said means for impressing said record thereupon.

3. In a system of thecharacter described, the combination of a relay, sound wave controlled mechanism connected with said relay for actuating the same, and means connected with said relay and controllable thereby for forming a record surface. v

4'. In a system of the character described, the combination of a'telegraphone provided with a record member, means for impressing upon said record member a sound record, feed mechanism connected with said means foncarrying the position thereof relatively to said record member, and sound wave controlled mechanism connected with said feed mechanism for stopping and starting the latter.

5. In a system of the character described, the combination of a telegraphone, means for actuating the same, and mechanism controllable fronr a distance by sound waves for throwing saidtelegraphone into and out of action at will.

. 6. In a system of the character described, the combination of a telegra hone, a motor for actuating the same, a bra e for stopping said telegra hone, sound wave controlled mechanism ibr releasing said brake so as to .allow said motor to start, and time-controlled mechanism connected with said motor mechanism for stopping said telegraphone'after a predetermined measured service. N g v 7. In a system of the character described, the'combination of a telegraphone provided with-a record member, means for actuating said record member, magnetic mechanism for impressing upon said record member impressions analogous to sound waves, means'con trollable electrically from. a distance by sound waves for overning' the position of said magnetic mec amsm relatively to said record member, and a. telephone connected with said magnetic member for reproducing sounds.

8. In a system of the character described,

the combination of a telegraphone provided with feed mechanism, a magnet for stopping and starting said feed mechanism, a relay having a local circuit connected with said magnet for energizing the latter, and sound wave controlled mechanism connected with said relay for energizing the latter.

9. In a system of the character described, the combination of a telegraphone provided with a revoluble member and with feed mechanism, a magnet for controlling said feed mechanism independently of said revoluble member, a relay provided with a local circuit connected with said magnet, said relay being further provided with a main circuit, and electric mechanism, controllable by sound waves, for energizing said relay.

10. In a system of the character described, Y

the combination of a telegraphone, means for actuating the same from a distance, and sound wave controlled mechanism connected with said last-mentioned means for automatically stopping said telegraphone after a pre- 1 determined measured service.

11. In a system of the character described,

the combination of a telegraphone, sound wave controlled mechanism for throwing said telegraphone into action, mechanism controllable by movements of said telegraphone for stopping the latter after a predetermined measured service, and adjusting mechanism controllable at will for governing said interval.

12. In a system of the character described, the combination of a feed screw, a bracket movable in relation thereto, magnetsmounted upon said bracket, a rocker mounted upon said bracket and provided with a surface for In testimoriywhereof I have signed my name to this specification in the presence of two subscribing witnesses.

GEORGE MORIN. Witnessesi VICTOR NORMAN'D, O. A; HORNSBY.

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