US749032A

US749032A - No model

Info

Publication number: US749032A
Authority: US
Publication date: 1904-01-05
Anticipated expiration: 1921-01-05

Description

No. 749,032. PATENTED JAN. 5,-1904. F. G. GREBD.

PERFORATING TELEGRAPHY.

APPLICATION FILED AUG. 4, 1902.

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Fig.1.

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No. 749,032. PATENTED JAN. 5, 1904. F. G. GREED. PERPORATING TELEGRAPHY.

APPLICATION FILED AUG. 4, 1902 N0 MODEL.

5 SHEETS-SHEET 2.

m: norms PETERS cd. swnum-ma.v wnsumsrom o. c.

No. 749,032. PATENTED JAN. 5,1904.-

- F. G. GREED.

PERPORATING TELEGRAPHY.

APPLICATION FILED AUG. 4, 1902.

7 N0 MODEL. Y 5 SHEETS-SHEET a.

I 7 I. I. -8.

v PATENTED JAN. 5. 1904. F.IG. OREED. PERFORATING TELEGRAPHY.

APPLICATION FILED AUG. 4, 1902.

5 SHEETS-SHEET 4.

N0 MODEL.

No. 749,032. PATENTED JAN. 5, 1904..

I F. G. GREED.

PERPORATING TELEGRAPH Y.

7 APPLICATION FILED AUG. 4, 1902. I0 MODEL. I 6 SHEETS-SHEET 5.

UNITED STATES Patented January 5,1904.

"PATENT- OFFICE.

FREDERICK GEORGE CREED, OF LENZIE, SCOTLAND, ASSIGNOR TO HIMSELF, AND WILLIAM ARTHUR COULSON, OF GLASGOW, SCOTLAND.

PERFORATING TELEGRAPHY.

SPECIFICATION forming part of Letters Patent No. 749,032, dated January 5, 1904. Application filed August 4, 1902. serial N0.118,370. (No model.)

1b all whom it may concern:

Be it known that I, FREDERIoK GEORGE OREED, a subject of the King of Great Britain and Ireland, residing at Lenzie, in the county of Lanark, Scotland, have invented Improve ments in Perforating Telegraphy,of which the following is aspecification.

This invention relates to telegraphic receiving apparatus suitable for perforating a tape in accordance with electric impulses in the manner usual in automatic Wheatstone telegraphic apparatus, the invention having for object to render such receiving apparatus capable of being efficiently operated at a higher speed than it is believed has been found practicable hitherto.

In telegraphic receiving apparatus according to this invention the punches are operated by motors and not by the armatures of the electromagnets, which are used merely to control or determine the operation of the motorand punches. The tapeis fed through the receiving apparatus by a feed-wheel driven by a motor running as nearly as possible in synchronism with the motor in the transmitting apparatus, any error in position of the tape immediately before the punching thereof takes place being corrected by synchronizing or adjusting meansarranged to partly rotate the feed-wheel relatively to its driving means.

The invention comprises a new construction of electromagnetic apparatus for controlling the punch-operating motor, a new construction of punch-operating mchanism, a new arrangement of feed-wheeladjusting mechanism, and new means for controlling the speed of theinotor used for driving the,

- tape-feeding mechanism.

It also comprises various other novel featnres of construction and combinations and arrangements of parts, all as hereinafter de scribed, and pointed out in the claims.

In the accompanying illustrative drawings, Figure 1 is a plan with part broken away, and Fig. 2 a side elevation showing one construclion of telegraphic apparatus embodying the present invention. Fig. 3 shows, partly in side elevation and partly in vertical section on a line corresponding to B B of Fig. l and to a larger scale than Figs. 1 and 2, part of the punch-operating mechanism.

Figs. 4 and 5 are plans showing modifications. Fig. 6 is a plan; Fig. 7, an end elevation, and Fig. 8 a sectional elevation on the line C C of Fig. 6, showing a modified construction of electromagnetic device. Fig. 9 is a similar view to Fig. 8, showing a modified construction of armature. Figs. 10 and 11 are plans showing further modified constructions of electromagnetic devices.

In the example shown in Figs. 1, 2, and 3 the electromagnetic portion of the telegraphic receiving apparatus which receives the line-currents and controls-the punchoperating motor comprises two similar magnets, which may becalled hybrid magnets. Each of these comprises a permanent horseshoe-magnet a, to each pole of which is fixed a vertical soft-iron core I), encircled by a coil 0 of insulated wire. The arrangement and winding of the cores 1) and the connection of the coils c are such, as shown, that the operation is as hereinafter described. Each of the magnets has an armature d, mounted to turn about a vertical axis at e midway between the cores b, which project beyond their coils c and have projecting facesf for the abutment of the armature, the two faces being turned in opposite directions, so that the two ends of their armature when turning on its axis either come into contact with or leave the said faces simultaneously. Each armature d is mounted as described in order that it may be removed from and returned to the polar faces f with the least possible resistance, due to mechanical inertia. The armatures are normally held against their respectivev poles inopposition to the action of adjustable springs g by means of the magnetism induced in. the soft-iron cores 1) by the permanent magnets (It. The two hybrid magnets may, as shown, be so fixed that their armaturesd will be normally opposite and parallel to each other. Adjacent to the armatures there is a device (hereinafter called a returning device) which normally presses one or other of the armatures d against its poles and isatashortdistance from the other armature. This device in the example shown comprises a bar h,that is supported by a fixed guide 2' and connected to an operating-lever jj and is provided with two tappets 7c m,

one of which when the bar is moved in one direction will move its adjacent armature d up to and hold it against the corresponding pair of polar faces f, while the other leaves its adjacent armature free to move into the open position, the latter armature being moved up to and held against the other corresponding pair of polar facesfand the first one being released when the bar is moved in the reverse direction. L is a fixed top plate carrying bearings Z for the armatures d, bearings Z for adjusting screw g for the springs g, and the guide 6.

The motor 71 for operating the punches is a reciprocating fluid-pressure motor having a slide-valve oconnected to a rod 19, the ends q and r of which are enlarged and arranged to be struck alternately by tappets s and 15, respectively, carried by non-magnetic extensions u of the armatures d, means, such as an angular projection v on the rod and a jockeypulley w on a spring-blade w, being preferably provided for holding the valve-rod and valve in each of its two end positions until forced endwise into the opposite position.

1 and 2 are two punches for perforating in the required manner a tape 3, which is fed through the apparatus bya rotary feed-wheel 4, driven by an electric motor 5. The two punches work through a stationary bearing 6 and also through a pair of vertical dieplates 7, between which the tape 3 passes. They are operated alternately from the piston-rod n of the motor n through lever mechanism comprising two

links

8 and 9, which are jointed together at 10 and to the pistonrod at 11, and two bell-crank

levers

12 and 13, which are jointed to the link 9 and whose free arms are respectively connected to bars 14 and 15, (hereinafter called strikers,) each of which is arranged to strike against the

head

1 or 2 of the corresponding punch l or 2 during a portion of its forward stroke, but before the end thereof, to be moved sidewise, as by a roller 18 acting on an incline 19 on the striker, so as to liberate the punchhead and allow the same to be returned to its initial rearward position during the completion of the forward stroke of the striker. The roller-18 is mounted ona vertical pin 18, fixed in a standard 18. In the example each of the strikers 14 15 is in the form of a lever pivoted to the free arm of the corresponding bell-crank

lever

12 or 13 and is pressed against the guide-roller 18 by aspring 20, connected to such bell-crank lever. Each of the punches l and 2 is returned to its backward position by a plate 21, which is slotted at 21 for the pin 18 to pass through it. This plate has at its front end a vertical flange 22, through which the

punches

1 and 2 extend and which bears against the forward sides of the punch-heads 1 2 and at its rear end a vertical flange 23, arranged in the path of a projection 24, Fig. 3, from the lower side I of the free arm of each bell-crank lever 12 l and 13. The arrangement is such that thel portion of the stroket-he striker is acting against the head of the corresponding punch and forcing the punch forward and causing it to punch the tape 3, the incline 19 on the striker meanwhile coming in contact with the roller 18, which causes the striker to become disengaged from the punch-head at the end of the second portion of the said stroke and enables the striker to make the remain ing or last third portion of its stroke idly, during which time the said punch is returned to its backward and normal position by the flange 22 of the plate 21, which at the beginning of the third portion of the stroke of thesaid striker begins to be moved backward by the projection 24 on the bell-

crank lever

12 or 13 of the other striker, which as it comes to rest at the end of the inward stroke thus completes the reciprocation of the said punch.

21 is a projection on the plate 21 to pre vent rotation of the punch-heads 1 2*.

The lever j j for reciprocating the armature-returning device or bar 72., which is of non-magnetic material, is operated from the link 9, for which purpose one of its armsviz. ,j'extends between two pins on the link. The said lever-arm j is built up of springblades, which will be bent by the link 9 when the same is moved to its full extent in either direction and cause each armature in turn to be firmly held against its pair of 'magnetic poles f.

The feed-wheel 4 is fixed upon a spindle 4, mounted at one end in a fixed bearing 25 and at the other end in a bearing 26 in the adjacent end of the driving-shaft 27 of the motor 5. The spindle is in frictional driving connection with the shaft 27 through a pair of spring-arms 28, that are fixed at one end through a collar 29 to the said shaft and bear at their free ends against a friction-ring 30, fixed to the spindle 4, the said shaft being supported by a bearing 31.

For correcting any error in the position of the feed-wheel 4, and consequently of the tape 3,before thepunching thereof takes place, there is fixed to the spindle 4 or the ring 30 thereon a toothed wheel 32, (hereinafter sometimes called the synchronizingwheel,) and in conjunction with this Wheel there is provided a rod 33, (hereinafter called the synchronizing-rod,) that is jointed to a lever 34 and hasa V-shaped end 35, adapted when the rod 33 is moved forward to enter the space between two adjacent teeth of the synchronizing-wheel 32, so as to adjust the position of this wheel and the feed-wheel 32 in a rotary sense relatively to the driving-shaft 27, and consequently also the eudwise position of the tape 3, should this tape not be in correct position for punching. The free end portion of the synchronizing rod 33 works through a fixed bearing 36. The free end portion 34* of the lever 34 is bent downward, so as to be in the path of the adjacent movable arm of each of the two bell-crank

levers

12 and 13, and to the said lever-arm is connected a spring 37, that tends to move it and the synchronizing-rod 33 forward. The arrangement is such that during the first and idle portion of the forward movement of either of the strikers 14 or 15 the synchronizing-rod 33 will be automatically moved forward by the spring 37, so'that it will, if necessary, by partly turning the synchronizing-wheel 32, correct the position of the feedwhee14 and insure the tape 3 being in proper positionfor punching. Thefreearm ofeach of the two bell-crank

levers

12 or 13 pushes back the lever-arm 34 and consequently the synchronizing-rod 33,during the third and remaining portion of the backward movement of the other striker, so that it releases the toothed wheel 32, the feed-whee14, and the tape 3, so that the tape can be moved forward by the feed-wheel 4. y

In the example the motor 5 is an electric one driven from a main battery 38 through

conductors

39 and 39 adjustable resistance devices 40 41 being included in the circuit to enable the speed of the said motor to be adjusted to the normal rate. To produce slight variation in speed of such motor to cause it to run at exactly the same speed as that of the motor of the transmitting instrument, which may vary to a slight extent from time to time, means are provided under the control of the tape for varying the strength of the current supplied to the said motor. For this purpose in the example shown the tape 3 is led over the feed-wheel 4, then under a pulley 42, carried by one arm of a regulatinglever 43, and over a second feed-wheel 44, that is fixed to a spindle 45 and driven at the same speed as the driving-shaft 27 by a cord 46, passing around pulleys 47 and 48 on the driving-shaft 27 and spindle 45, respectively. 'A spring 49, attached to the lever 43, serves to keep the pulley 42 hearing downward into the loop 3 of tape between the two feed-wheels. The other arm of the regulating-lever 43 carries an insulated contact 50, that is connected to the motor-circuit at 51 and is arranged between two stationa'ry spring-

contacts

52 and 53, whereof 52 is connected to one pole of the battery 38 between the same and the resistance 40, and 53 is connected to one pole of a smaller battery 54, the second pole of which is connected to the other pole of the main battery 38 at a point between such pole and the resistance 41, the smaller battery when in circuit acting to oppose and weaken the main battery. The arraugementis such that when the motor 5 is running ata speed suitable for the rate at which signals are being received the loop 3 of tape will hold the regulating-lever 43 in a position in which the contact will not bear against either of the

contacts

52 and 53; but should the said motor run too slow for the rate at which signals 1 are being received the said loop will be lengthened and cause the contact 50 to bear against contact 52, thus closing the motor-circuit through the

contacts

52 and 50 and shunting the resistance 40, so that the motor 5 will be caused to run faster. When the said motor is running too fast, the loop 3 of tape will be shortened, and the regulating-lever 43 will cause the contact 50 to bear against the contact 53 and complete the circuit of the battery 54, and thereby reduce the power of the main battery 38, and consequently the speed of the motor.

The operation of the apparatus is as follows: Assuming the motor 5 to be running and the tape 3 to be traveling between the die-plates 7 and that the piston-rod n has been moved to the left-hand end of its stroke, then the parts will be in the positions shown in Figs. 1 and 2, in which the lever 12 and striker 14 will be in their forward positions, the lever 13 and striker 15 in their backward positions, the

punches

1 and 2 in their back- Ward positions, and the left-hand armature d held against the pair of polar facesfof its corresponding magnet by the tappet m,while the right-hand armature d will be released by its tappet k and will be simply held against the polar faces f of its corresponding magnet by the magnetic attraction of such faces. Upona current-saya positive cnrrent being now sent through the coils c in the direction of the arrows X the attraction of the left-hand magnet will be increased and that of the right-hand magnet will be reduced,so that while the armature d of the former will be retained more strongly against its coresb that of the latter will be drawn away by its spring g and cause its tappet s to strike the valve-rod 10 and move the valve 0 to the left, so as to admit motive fluid to the left-hand end of. the cylinder of motor '17.. The piston and piston-rod n will consequently be moved to the right and cause the lever 13 and striker 15 to move forward and operate the punch 2 to form a hole on one side of the tape 3,while the lever 12 and striker 13 will be moved backward. Duringthe first part of this move ment the plate 21 will be free to move forward with the punch 2, and the lever 34 will be permitted by the free end of lever 13 to move forward under the action of its spring 37 and cause the synchronizing-rod 33 to adjust the position of the feed-wheel and tape, as hereinbefore described. During the latter part of the said movement the striker 15 will be disengaged from the head 2 of the punch 2 and the plate 21 released, and the free end of lever 12 will move back the lever-arm 34 and rod 33, and the plate 21 with punch 2 will be moved back by the projection 24 on the lever 12, so as to release the tape 3 and feed-wheel 4 and permit them to be again moved forward by the motor 5 after being detained by the punch 2 during the punching operation. The forward movement of the piston-rod n also causes the leverjj to turn clockwise and move the bar h to the left, so as to cause the tappet m to release the left-hand armature dand bring the tappet It up to the right-hand armature d and hold the same against its pair of polar faces f. If a current be now sent through the coils c in the reverse direction-viz., that of the arrows Ythe action of the magnets on the two armatures will be the converse of that above described,and the tappet twill move the valve 0 to the right. The piston-rod a will then be moved to the left and cause the bell-crank

levers

12 and 13 and attached parts and the bar htomove into the positions shownin Fig. l, the synchronizing bar 33 being moved forward and returned as before and the punch being moved forward to form a hole on the other side of the tape and returned to its backward position during such forward movement of the piston-rod. No eifect will be produced on the punches by the second of two currents in the same direction without an intermediate reverse current. The speed of the motor 5 will be varied to suit requirement in the manner hereinbefore described.

The punch-operating motor a may conveniently be a compressed-air motor and its valve 0 be an ordinary piston-valve or, as shown, a balanced one of special construction working between the cylinder-valve face 55 and a bearing 56,that can be adjusted toward the valve to compensate for wear by a screw 57 and can afterward be fixed in the adjusted position by screws 58.

As will be obvious, telegraphic apparatus according to this invention can be variously modified to effect the object in view. Thus Fig. 4 shows a modified arrangement wherein the valve-rod p, with valve 0, is arranged to be held in each of its extreme positions by one or other of two

catches

56 and 57 in the form of bell crank levers, each of which is connected to an adjustable spring 58 and has one arm arranged near to one end of one of the adjacent armatures d, so

that it can be operated thereby, the other arm terminating near to a projection 59 on the valve-rod p. This valve-rod is so connected to the piston-rodn that movement of the latter rod in either direction will put into stress a spring that will on the release of the valve-rod by one or other of the

catches

56 or 57 move such rod and valve in the proper direction for returning the motor-piston. In the example the piston-rod 'I'L' is connected to the spring-arm 60 of a lever, the other arm 61 of which is connected to the valve-rod. With the parts in the position shown in Fig. 4 the valve-rod p is held in its rearward position by onearm of the catch 56 being held inthe path of the projection 59, the other arm of the catch being held against the right-hand armature d by its spring 58, while the second catch 57 is held in an inoperative position by the said projection. The spring-arm 60 is strained in the direction of the arrow 'g by the piston-rod it, so that the other arm 61 of the lever tends to move the valve-rod in the direction of the arrow 2, but is prevented from doing so by the catch 56. Upon the right-hand armature being released and turned in the direction of the arrow y by its spring g, as hereinbefore described, it will force the catch 56 out of engagement with the projection 59 and allow the valve-rod and valve to be moved forward by the spring-lever 6O 61, and the spring-catch 57 will snap in behind the projection 59 to hold the valve-rod in the forward position and will assume a position in the path of the left-hand armature d. The pistonrod will then move forward, as before, and stress the spring-arm 60 in the opposite direction, and when the left-hand armature is released and turned in the direction of the arrow g as hereinbefore described, it Will force the catch 57 out of engagement with the projection 59 and allow the valve-rod and valve to be forced backward by the springlever 60 61, and thereby cause the piston-rod n to make its return movement. The arma- Lure-returning device h is constructed and operated as in Figs. 1 and 2.

Again, it will be obvious that instead of fixing the cores b of the magnets to permanent magnets a to form hybrid magnets, as hereinbefore described, each pair of cores b may, as shown in Fig. 5, be connected by an ordinary yoke 62 and have a second winding 63 constantly traversed by a current from an electric generator 64, adapted to give the normal pull at the poles.

Figs 6, 7, and 8 show another form of electromagnetic device arranged to control the valve 0 of the motor n. In this case the said device comprises an armature (1, carried by a vertically-pivoted spindle 65 and arranged to oscillate between the

poles

66 and 67 of two

separate electromagnets

68 and 69, the separate electric circuits 70 and 71 of which are adapted to be opened and closed by the oscillatory tongue 72 of a relay 73, that is adapted to be operated by positive and negative line-currents in a manner well understood, one end of each circuit 70 and 71 being connected to the tongue 72 and the other to one of two terminals 74 and 75, between which the said tongue is mounted to oscillate. The relay 73 may be an ordinary post-otfice relay or a neutral relay, each of the kind commonly used in telegraphic apparatus. To the spindle 65 is fixed a lever-arm 76, that is connected to one end of the valve-rod 19, so as to move the valve 0 alternately in opposite directions when the armature d is attracted alternately by the

electromagnets

68 and 69. The armature d may be of the form shown in Fig. 8 or of that shown in Fig. 9. In this arrangement no armature-returning device is necessary.

The electromagnetic device shown in Figs. 1 and 2 is, owing to the use of the armaturereturning device h,adapted for use with much smaller electric currents than the ordinary form of electromagnetic devioeshown in Figs.

6, 7, and 8, which,however, seems to be more positive and reliable in its action than the device shown in Figs. 1 and 2 when the apparatus is required to be worked at a comparatively high speed.

Fig. 10 shows a further modification wherein the left-hand electromagnet 69 of Fig. 6 is omitted and replaced by a stop 77, against which the armature d is caused to normally bear by a spring 78 when the electromagnet 68 is demagnetized. In this case the armature d is oscillated simply by the make and break of the circuit 70 of the electromagnet 68, which may be effected by a relay 73 or the said electromagnet 68 may be in the linecircuit.

Fig. 11 shows another arrangement similar to that illustrated in Fig. 10, but wherein the polar faces 60 60 of the two cores of the eleciromagnet 68 are reversely arranged and the armature d is pivoted at its center and arranged to move toward or from both polar faces simultaneously, the armature-lever 76 being connected toa spring 78, that moves the armature away from the said polar faces and the lever against a stop 74 when the electromagnet is demagnetized.

Again, a punch-operating motor other than a fluid-pressure motor may be used and the means for operating the punches from the motor may difier considerably from those shown.- Also a motor other than an electric motor may be used for moving the tape through the apparatus and means other than those shown he used for regulating the speed of the tape-feeding motor.

If the spacing-punch--say lbe omitted, apparatus according to this invention can be used for punching codes that are represented by holes or groups of holes punched in one side only of the tape.

It will be obvious that various other modifications can be made in the apparatus without departing from the essential features of the invention.

What I claim is- 1. Telegraphic receiving apparatus for perforating a tape in accordance with the electrical impulses received, com prising tapefeeding mechanism, tape-punching mechanism, a fluid-pressure motor for operating said tape-punching mechanism, and an electromagnetic device for controlling said punchoperating motor in accordance with the electrical impulses received.

2. Telegraphic receiving apparatus for perforating a tape in accordance with the electrical impulses received, comprising tapefcedin'g mechanism, synchronizing mechanism for said tape-feeding mechanism, tapepunching mechanism, a fluid-pressure motor for operating said tape-punching mechanism, and an electromagnetic device for controlling aaid punch-operating motor in accordance with the electrical impulses received.

3. Telegraphic receiving apparatus for perforating a tape in accordance with the electrical impulses received, comprising means for feeding a tape through said apparatus, a motor for driving said feeding means, tapepunching mechanism, a fluid-pressure motor for operating said punching'mechanism, an electromagnetic device for controlling said second motor in accordance with the electrical impulses received, and means, under the control of the tape, for regulating the speed ofthe first-mentioned motor and tape to suit the rate at which messages are received.

4. In telegraphic receiving apparatus for perforating a tape in accordance with the electrical impulses received, the combination of tape-feeding mechanism, tape-punching mechanism, a fluid-pressure motor for operating said tape-punching mechanism, and means for controlling said motor, said controlling means comprising a magnet having a winding to be traversed by the electrical impulses, an armature that is held by the magnet when the impulses are in one direction and automatically moves into an open position and causes the motor to act when the impulses are in the opposite direction, and means for returning said armature to its closed position.

5. In telegraphic receiving apparatus for perforating a tape in accordance with the electrical impulses received, the combination of tape-feeding mechanism, tape-punching mechanism, a fluid-pressure motor for oper ating said tape-punching mechanism, and means for controlling said motor, said controlling means comprising a pair of magnetized cores provided with coils through which the electrical impulses pass, an armature mounted to-move toward and from said cores and normally held against the same by magnetic attraction, means for moving said armature away from said cores when the magnetism thereof is lessened by the action of said electrical impulses in one direction, and means for afterward returning said armature to its normal position.

6. In telegraphic receivingapparatus for perforating a tape in accordance with the electrical impulses received, the combination of tape-feeding mechanism, tape-punching mechanism, a fluid-pressure motor for operating said tape-punching mechanism, and means for controlling said motor, said controlling means comprising a pair of magnets having windings arranged to be traversed by the electrical impulses, and armatures that are normally held by said magnets but are adapted to move alternately into the open position automatically when the strength of the corresponding magnet is reduced by electrical impulses in one direction or the other, and cause said motor to operate the punching mechanism, and means for returning each armature in turn to its normal position.

7. In telegraphic receiving apparatus for perforating a tape in accordance with the electrical impulses received, the combination of tape-feeding mechanism, tape-punching mechanism, a fluid-pressure motor for operating said tape-punching mechanism, and means for controlling said motor, said controlling means comprising two pairs of iron cores, means for magnetizing said cores, a set of connected coils surrounding said cores and through which said electrical impulses are caused to pass in such manner that the magnetism of one pair of cores will be strengthened and that of the other pair decreased by electrical impulses in one direction and vice versa by electrical impulses in the opposite direction, two armatures each normally held by a pair of said magnetic cores, retractile springs each acting to move one of said armatures away from its pair of cores when the magnetism thereof is reduced by electrical impulses in one direction or the other and to cause said motor to act, and means for returning each armature in turn to its pair of magnetized cores after being moved away therefrom.

8. Telegraphic apparatus for perforating a tape in accordance with electrical impulses received, comprising tape-feeding mechanism, tape-punching mechanism, a fluid-pressure motor for operating said tape-punching mechanism, and an electromagnetic device for controlling said motor in accordance with the electrical impulses received.

9. In telegraphic apparatus for perforating a tape in accordance with the electrical impulses received, the combination with tapefeeding mechanism, of tape-punching mechanism, a fluid-pressure reciprocatory motor for operating said punching mechanism, and an electromagnetic device adapted under the action of electrical impulses passing alternately in opposite directions to operate the valve of said motor and cause the same to move alternately in opposite directions.

10. In telegraphic apparatus for perforating a tape in accordance with the electrical impulses received, the combination with tapefeeding mechanism, of tape-punching mechanism, a fluid-pressure reciprocatory motor for operating said punching mechanism, and an electromagnetic device having two magnets with two armatures normally held against the cores of said magnets, and coils surrounding said cores and adapted to increase the magnetism thereof when traversed by electrical impulses in one direction and to reduce said magnetism when traversed by electrical impulses in the opposite direction, springs for moving each of said armatures into the open position when the magnetism of the corresponding cores is reduced, means for utilizing movements of said armatures to control the motive fluid distributing valve of said motor, and means for returning each armature in turn to its normal closed position while leaving the other free to move into its open position.

11. Telegraphic receiving apparatus for perforatinga tapein accordance with the electrical impulses received, comprising tapefeeding mechanism, tape-punching mechanism, a reciprocating fluid-pressure motor having its piston connected to said tape-punching mechanism, and an electromagnetic controlling device having two pairs of magnetized cores surrounded by coils that are connected together and arranged so that when traversed by electrical impulses in one direction, one pair of cores will be further magnetized andt-he second pair of cores will be partly demagnetized, the magnetism of the latter pair of cores being increased and that of the first pair decreased by electrical impulses in the opposite direction, two spring-controlled armatures each of which is normally held against one of said pairs of cores but will automatically move away therefrom when the same is partly demagnetized, said armatures being arranged to move the valve of said motor alternately in opposite directions, and a bar arranged to be moved by said motor and adapted to return each armature in turn to its pair of cores while leaving the other one free.

12. Telegraphic receiving apparatus for perforating a tape in accordance with the electrical impulses received, comprising tapefeeding mechanism, tape-punching mechanism, a reciprocatory fluid-pressure motor having its piston connected to said tape-punching mechanism, and an electromagnetic controlling device having two pairs of magnetized cores arranged as described and surrounded by coils connected up as described, two armatures each connected to a spring and mounted to turn toward and from said cores and to actuate the valve of said motor in one direction when moving into its open position, a bar provided with tappets adapted to alternately engage said armatures and to return one of them to its closed position and leave the other free to move into the open position, and a spring-lever connected to said bar and arranged to be operated from said motor, substantially as described for the purposes specified.

13. Telegraphic receiving apparatus for perforating a tape in accordance with the electrical impulses received, comprising tapefeeding mechanism, tape-punching mechanism, a fluid-pressure motor for operating said tape-punching mechanism, and an electromagnetic device adapted under the action of said electrical impulses to control the movement of said motor,said tape-punching mechanism comprisinga punch, die-plates through which said punch works and between which the tape passes, a striker arranged to be operated from said motor and adapted to move said punch into its forward and operative position and then become disengaged therefrom, and means for moving the released punch into a rearward position.

14. Telegraphic receiving apparatus for perforating a tape in accordance with the electrical impulses received, comprising tapefeeding mechanism, tape-punching mechanism, a fluid-pressure motor for operating said tape-punching mechanism, and an electro- -magnetic device adapted under the action of said electrical impulses to control the movement of said motor, said tape-punching mechanism comprising two punches, die-plates through which said punches work and between which the tape passes, two strikers arranged to be operated from said motor and each adapted in turn to move its punch into the forward and operative position and then become disengaged therefrom, and means for returning each punch to its rearward position after being moved forward and released.

15. Telegraphic receiving apparatus for perforatinga tapein accordance with the electrical impulses received, comprising tapefeeding mechanism, tape-punching mechanism, a motor for operating said tape-punching mechanism, and an electromagnetic device adapted under the return of said electrical impulses to control the action of said motor, said tape-punching mechanism comprising two punches, die-plates through which said punches work and between which the tape passes, two strikers arranged to be operated from said motor in such manner that one Will move forward and cause its corresponding punch to move forward and perforate the tape while the other moves back, means for causing the advancing striker to become disengaged from its punch before completing its stroke, and means for causing the receding striker to return the released punch to its rearward position.

16. Telegraphic receiving apparatus for perforating a tape in accordance with the electrical impulses received, comprising tapefeeding mechanism, tape-punching mechanism, a motor for operating said tape-punching mechanism, and an electromagnetic device adapted under the action of said electrical impulses to control the movement of said motor, said tape-punching mechanism comprising two punches arranged side by side, die-plates through which said punches work and between which the tape passes, two levers arranged to be operated by said motor in such. manner'that one will be caused to make its forward movement while the other makes its backward movement, a striker connected to each lever and adapted, on the forward movement thereof, to abut against the corresponding punch and causeit to move forward and perforate the tape, means for disengaging each striker in turn from its punch during its forward movement, and means arranged to be operated from each lever in turn, during its return movement, to return the punch that was moved forward by the forward movement of the other lever.

17. Telegraphic receiving apparatus for perforatinga tape in accordance with the electrical impulses received, comprising tapefeeding mechanism, tape-punching mechanism, a motor for operating said tape-punching mechanism, and an electromagnetic device adapted under the action of said electrical impulses to control the movement of said motor, said tape-punching mechanism comprising two punches arranged side by side, die-plates through which said punches work and between which the plate passes, a rod or link, arranged to be operated from said motor, two bell-crank levers each having an arm jointed to said rod or link, a striker carried by the other arm of each lever and normally held by spring action in line with one of said punches, a punch-returning device having its forward part arranged to abut against the forward side of the punch-heads, and its rearward part arranged to be acted upon by abutting parts on these arms of the said levers that are connected to said strikers, and to be moved backward by each of said parts during the return movement thereof, and means carried by said punch-returning device for forcing each striker, before the completion of its forward motion, out of contact with the head of the corresponding punch.

18. Telegraphic receiving apparatus for perforating a tape in accordance with the electrical impulses received,comprising tape-feeding mechanism, tape-punching mechanism, a reciprocatory fluid-pressure motor for operating said punching mechanism, and an electromagnetic device adapted under the action of said electrical impulses to control the valve of said motor, said tape-punching mechanism comprising two punches, dieplates through which said punches work and between which the tape passes,alink flexibly connected to the piston-rod of said motor, two bell-cracklevers each jointed atone end to said link, two strikers jointed to the other ends of saidlevers and each having inclined parts on their inner sides, a plate having a flanged forward part to bear against the heads of said punches and a flanged rearward part arranged in the path of those arms of the levers on which said strikers are mounted, a.

roller mounted on said plate and adapted to push each of said strikers in turn outward during forward movement thereof, and a spring connecting each strikertoits carryinglever and acting to press such striker against said roller, substantially as described.

19. In telegraphic receiving apparatus for perforating a tape in accordance with the elec trical impulses received,the combination with tape-feeding mechanism comprising a feedwheel and a motor yieldingly connected to said feed-wheel, tape-punching mechanism, a motor for operating said punching mechanism, and means adapted under the action of said electrical impulses to control said motor, of synchronizing mechanism comprising a toothed wheel connected to said feed-wheel and means adapted at each operation of said .second motor to become engaged with said toothed wheel, and if necessary, partly rotate the same and said feed-wheel relatively to the first-mentioned motor before punching of the tape takes place, and to be afterward disen gaged from said toothed wheel, substantially as described for the purpose specified.

20. In telegraphic receiving apparatus for perforatinga tape in accordance with the electrical impulses received,the combination with tape-punching mechanism, a motor for operating said mechanism, and means adapted under the action of said electrical impulses to control said motor, of tape-feeding and synchronizing mechanism comprising a feedwheel, a rotary driving-shaft yieldingly connected to said teed-wheel, a toothed wheel fixed to said feed-wheel, and means controlled by said punching mechanism and adapted each time said mechanism is operated, to first engage said toothed wheel and, if necessary partly rotate said toothed wheel and feedwheel relatively to said driving-shaft, before punching of the tape takes place, and afterward to become disengaged from said toothed wheel.

21. In telegraphic receiving apparatus for perforating atape in accordance with the electrical impulses received,the combination with tape-punching mechanism, a motor for operating said mechanism, and means adapted under the action of said electrical impulses to control said motor, of tape-feeding and synchronizing mechanism comprising a feed- Wheel, a rotary driving-shaft yieldingly connected to said feed-wheel, a toothed wheel fixed to said feed-wheel, and means adapted at each operation of said punching mechanism, to first automatically engage said toothed wheel and, if necessary, partly rotate the same and said feed-Wheel, before punching of the tape takes place, and afterward to be with-,

drawn from said toothed wheel by said punching mechanism.

22. In telegraphic receiving apparatus for perforating a tape in accordance with the electrical impulses received,the combination with tape-punching mechanism, a motor for operating said mechanism, and means adapted under the action of said electrical impulses to control said motor, of tape-feeding and synchronizing mechanism comprising a feedwheel, a rotary driving-shaft yieldingly connected to said feed-wheel, a toothed wheel fixed to said feed-wheel, a rod having one end adapted to enter the space between two adjacent teeth on said toothed wheel, a carrier connected to said rod, and havinga part thereof arranged to be alternately released and moved backward by said punching mechanism each time the same is operated, and a spring adapted to cause said rod to engage said toothed wheel, and, if necessary, partly rotate the same and said feed-Wheel, each time said carrier is released,and before punching of the tape takes place, substantially as described.

23. In telegraphic receiving apparatus, the

combination with tape-feeding mechanism comprising a feed-wheel, a rotary drivingshaft, and a yielding connection between said feed-wheel and driving-shaft, and means for punching said tape in accordance with the electrical impulses received, of synchronizing means comprising a toothed wheel fixed to said feed-wheel, a rod adapted when released to automatically move forward and engage said toothed wheel and, if necessary, partly rotate the same and said feed-wheel before each punching operation, and an intermittently-operating motor controlled by the electrical impulses received and adapted at each operation thereof to first release said rod and allow it to act and then to withdraw said rod from said toothed wheel, substantially as described.

24. In telegraphic receiving apparatus, the combination of a tape-feed wheel, a rotary motor, a friction-clutch between said feed-wheel and motor, tape-punching mechanism, a fluidpressure motor for operating said punching mechanism, an electromagnetic device for controlling said fluid-pressure motor, a synchronizing toothed wheel connected to said feed-Wheel, a synchronizing-rod having one end arranged to enter the space between adjacent teeth on said toothed wheel, a lever connected to the other end of said rod and having a part thereof arranged to be alternately released and moved backward at the commencement and termination of each movement of the punch-operating mechanism, and a spring adapted to move said rod forward each time said lever is released, substantialb as described.

25. Telegraphic receiving apparatus for perforating a tape in accordance with the electrical impulses received, comprising tapefeeding mechanism, means for regulating the speed of said tape-feeding mechanism, said regulating means being itself controlled by the tape, tape-punching mechanism, a motor for operating said tape-punching mechanism, and an electromagnetic device for controlling said punch-operating motor in accordance with the electrical impulses received, a second toothed wheel driven from said motor and over which the tape passes from the first feed-wheel so as to leave a loop of tape between the two wheels, regulating means acted upon by said loop of tape and adapted according to the speed of said tape, to either increase or reduce the speed of said motor.

Signed at Anstruther, Scotland, this 22d day of July, 1902.

FREDERICK GEORGE CREED.

Witnesses:

JAMES BROWN, JOHN J. WELCH.