US802740A - Electromagnetic perforator for perforating electric-telegraph transmission-tapes. - Google Patents

Description

PATENTED OCT. 24, 1905.

P. B. DELANY.

ELECTROMAGNETIC PERFORATOR FOR PEREORATINC ELECTRIC TELEGRAPH TRANSMISSION TAPES.

APPLICATION FILED AUG.17, 1901 RENEWED FEB. 20.1905.

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No. 802,740. PATENTBD 00124, 1905. P.B.DBLANY. ELECTROMAGNETIC PERFORATOR EOE PERFORATING ELECTRIC TELEGRAPH TRANSMISSION TAPES.

APPLICATION FILED AUG. 17, 1901. RENEWED IEB. 20.1905.

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P. B. DELANY. ELECTROMAGNETIC PERFORATOR FOR PERFDRATING ELECTRIC TELEGRAPH TRANSMISSION TAPES.

APPLICATION FILED AUG. 17, 1901. RENEWED rm. 20,1905.

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PATRICK B. DELANY, OF SOUTH ORANGE, NEW JERSEY.

ELECTROMAGNETIC PERFORATOR FOR PERFORATING ELECTRIC-TELEGRAPH TRANSMISSION-TAPES.

Specification of Letters Patent.

Patented Oct. 24, 1905.

Application filed August 17, 1901. Renewed February 20, 1905. Serial No. 246,492.

To all whom it may concern.-

Be it known that I, PATRICK B. DELANY, a citizen of the United States, residing at South Orange, in the county of Essex, State of New Jersey, have invented certain new and useful Improvements in Electromagnetic Perforators for Perforating Electric-TelegraphTransmitting-Tapes, of which the following is a specification.

This invention is in the nature of an improvement upon the perforator shown in my Patent No. 507,791, dated October 31, 1893, and is designed to adapt the apparatus for use with a single polarity of current, which may of course be derived from a battery or any suitable generator or distributing system.

In the accompanying drawings, Figure 1 is a diagrammatic view; Fig. 2, a like view showing the perforator as operated from a distant station. Fig. 3 shows a modification in which two polarized relays with biased armatures are employed instead of a single one with a neutral armature.

l) D are the punch-magnets; Y, the paper strip drawn continuously between the punches and die-block by rolls X, which may be driven in any suitable manner and are shown as actuated by an electric or other motor having a shaft with a worm engaging a wheel on the shaft of one of the rolls X.

C is a polarized relay acting on the movement of its armature-lever to open the circuits of the punch-magnets.

B is a polarized relay controlling the relay U; V, a variable resistance in the circuit of the source 1.

As indicated, the polarized relay C is multiply or differentially wound, and its two circuits are so connected that the current from its local battery LB in one winding draws the armature-lever against the contact-post o and in the other winding against the contact-post c. The relay B is similarly wound and connected, so that in one case the current from the source P causes its armature-lever to pass into contact with 0 and in the other into contact with If new the circuit of the relay B be properly controlled by any suitable contact devices operated directly or indirectly by the Morse key K, the proper punching of the strip will be effected as it is drawn continuously under the punches. I prefer to place the key K in a local circuit containing a battery L and magnet R. The pivoted armaturelever J of this magnet works between contact-posts m a, connected, respectively, with the coils of the punch-magnets D D, and carries a contact finger i, normally bearing against a contact-hook 7' otherwise insulated from the armature-lever. When the rear end of the armature-lever rises, the yielding finger or tongue 11, coming against the contact-post it, is pressed out of contact with the hook r. The post 71/ is connected. as shown, with the terminal of one winding of the relay B, the other terminal being connected with the source of energy P. Contact Wis connected with one terminal of the other winding of the relay B,the other terminal being connected with the source I. hen the key K is depressed, the magnet R energized, and its armature -lever J drawn down, the circuit fr om the source P is through the variable resistance V, that winding of the relay B which will cause its armature-lever to pass to the stop 9, thence through the contact it, tongue 71, armature-lever J, its contact an, punch-magnet D, contact 0 of the relay 3, its armature-lever, and thence to the opposite pole of the source P. The punch'magnet 1), thus energized for a short period, will actuate its corresponding punch. The period of its vitalization depends upon themargin of time during which the armature-lever of relay B will pass to its contactp0st 1), thus transferring the circuit of the local battery LB from that coil of the relay O which maintains its armature-lever against the stop a to the other coil, which causes the armature-lever to leave its contact 0 hen the key K is opened, the source 1 is connected through that winding of the polarized relay B which Will cause its armature to move to the stop 0, thence to the hook-contact r, tongue 1', armature-lever J, its upper contact a, winding on the punch-magnet D, contact c, and. armature-lever of the polarized relayU, and thence to the opposite pole of the source P. The punch-magnet D is now energized during the period in which the armature-lever of the relay B passes to its contact 0 and the armature-lever of relay C leaves its contact 0. Thus it will be seen on each movement of the key, and. correspondingly of the lever J, the puneh-magnets D D are alternately energized momentarily or until ciit out by movement of the armature-lever of the polar relay (:1, which is under control of the polar relay B, that is actuated by the same current from 1 that energizes the punch-magnets. The period of vitalization of the punch-magnets D D may be conveniently regulated by adjustment of the space between the limiting contact-posts 0 of the relay B.

Another feature of this invention consists in the employment of an adjustable resistance V in the circuit of the source P for the purpose of adapting the perforator to any current strength above the minimum necessary for its operation and for regulating the strength of the current in relation to the amplitude of movement of the armature of the polar relay B. For instance, should the current be weak, the prolongation of the impulse in the coil of the punch-magnet could be effected by giving the armature-lever of the polar relay B greater play. This plan might, however, be objectionable, (and the extent to which it could be used will depend upon the speed of traverse of the paper strip,)as the punch might remain too long in the path of the constantly-moving tape, which would drag or draw against it. Under proper conditions a better adjustment could be obtained by giving the armature less play and strengthening the current. so that the levers of the punchmagnets will deliver a quick sharp blow. Practical experience has, however, led me to the conclusion that the best adjustment is obtainable by regulating the current strength in conjunction with regulation of the amplitude of movement of the armature-lever of the polar relay B. Y

The use of multiple windings in the polarized relay B and its actuation in either direction by a current of the same source is the primary feature of this invention. Obviously the relay 0 might be actuated by a split battery in themanner shown in Fig. 1 of my patent hereinbefore mentioned. I prefer, however, to provide the relay C with multiple or differential winding and to actuate it in either direction by a current of the same polarity.

The paper strip passing from the reel and between the punches and die-block to the drawing devices is subjected to tension between the reel and punches for the purpose of keeping the strip taut while being acted upon by the punching devices. Experience has demonstrated that in the absence of such tension the inertia of the reel causes slack in the strip and impart-s to it an endwise movement toward the punches in excess of the desired travel under the draft of the drawing devices. Consequently there is liable to be a buckling of the strip and a lack of perfect precision in its movement under the punches, so that the punched strip does not correspond exactly with the manipulation of the key. A suitable tension device shown in the drawings comprises a spring-finger T, arranged transversely to the tape and preferably inclined thereto and adjustable as to tension by a spring 25'. The end of this finger is arranged adjacent the die-block and extends somewhat below the level of the face thereof across which the tape traverses. The tape from the reel S passes under the finger and then up and across the face of the die-block, traversing a devious course, but not being subjected to direct pressure between opposing pressure devices. order that the travel of the tape may be arrested without stopping the motor, the shaft of the lower one of the rollers X may be so mounted as to be capable of being drawn down to release the tape. This may be conveniently done by hingiug the end of the shaft (not seen in Fig. 1) and providing a spring 3, normally drawing the shaft upwardly, so that its loosely-mounted roll may clamp the paper. The shaft may be drawn down by means of a pivoted latch 4, adapted to engage the beveled end of the shaft.

Another feature of my invention consists in an arrangement for operating the magnet R, polar relays C and B, and the punches from a distance. This improvement is mainly effected by substituting the armature-lever of a relay for the key K in the circuit of magnet B. This operation is shown diagrammatically in Fig. 2, which also illustrates a means whereby the travel of the tape may be stopped from the distant station, so that when the distant operator finds it necessary to stop sending from any cause he can arrest the tape until again ready to proceed. Referring to Fig. 2, R is the electromagnet controlling polar relays and punches, as shown in Fig. 1. X represents the tape-pulling rollers; M, amagnet whose armature-lever operates to throw the lower pressure-roller away from the tape. PR is polar-relay whose armature controls R and M. S is a switch for reversing the current from the split battery over line to PR, and K the transmitting-key, the switch-key and battery being at the transmitting-station. hen the switch is closed to the key, current of one polarity is sent to line on the depression of the key. The armature of polar-relay PR, normally held by opposing springs in a neutral position, will be drawn against contact 0* and actuate R, which controls the punches. Should the operator at the distant station wish to stop the tape, he can do so by throwing the switch S to the other pole of the battery, the current from which will cause armature of PR to pass to contact 0", thereby completing circuit of magnet M, which includes the local battery L of magnet R. The armature of M being attracted engages the beveled end of shaft of lower roll X, and that roll is thrown away from the tape. When ready to start again, it is only necessary for the operator to reverse the position of switch S.

In lieu of the polarized relay PR with a neutrally-maintained armature two polarized relays with biased armatures may be usedan equivalent arrangement well understood and shown in Fig. 3, in which 2 3 indicate the two relays 2 3 in opposite directions. A po- TIO larity of current operating one of them will hold the armature of the other more securely in the position to which it is biased. The lever controlling the contacts which govern the actuation of the other devices may therefore be a Morse key normally operated or an electrically-operated lever controlled from a distant station.

The arresting-magnet M and the device actuated by it, as in Fig. 2, may of course'be controlled from lever K of Fig. l exactly as it and magnet R are controlled from lever of polarized relay PR in Fig. 2.

I claim as my invention- 1. In an electromagnetic tapeperforator, the combination with the punches, the punchmagnets, means for continuously drawing the tape past the punches and a relay serving to open the punch-magnet circuits, of a second relay differentially wound and controlling the circuit of the first-named relay, a lever, contacts controlled by the lever for closing the punch-magnet circuits, and contacts and circuit connections also controlled by the lever to actuate the second-named relay in either direction by a current of the same polarity.

2. In an electromagnetic tape-perforator, the combination of the punches, the punchmagnets, their circuits, means for continuously drawing the tape past the punches, a polarized relay whose contacts and. armaturelever are included in said circuits and which act to open the punch-magnet circuits, a second polarized relay differentially wound whose contacts and armature-lever are included in a local circuit of the first named relay, and whose windings are included in the punchinagnet circuits, a lever, contacts controlled thereby for closing the punchuhagnet circuits, and contacts and circuit connections also controlled by the lever for operating said second-named relay in either direction by a current of the same polarity from a source included in the circuits of the punch-magnets.

3. In an electromagnetic tape-perforator, the combination of the punch-magnets, their circuits, a relay whose contacts and armaturelever are included in said circuits and which act to open the punch-magnet circuits, a polarized relay differentially wound whose contacts and armature-lever are included in a local circuit of the first-named relay and Whose windings are included in the punch-magnet circuits, a lever, contacts controlled thereby for closing the punch-magnet circuits, contacts and circuit connections also controlled by the lever for operating the second-named relayin either direction by a current of the same polarity from a source included in the circuits of the punch-magnets, and a variable resistance in the punch-magnet circuits.

4L. In an electromagnetic tape-perforator, the combination of the punch-magnets, their circuits, a relay whose contacts and armaturelever are included in said circuits and which act to open the punch-magnet circuits, a polarized relay ditlerentially wound whose contacts and armature-lever are included in a local circuit of the first-named relay and whose windings are included in the punch-magnet circuits, a lever, contacts controlled thereby for closing the punch-magnet circuits, con tacts and circuit connections also controlled by the lever for operating said second-named relay in either direction by a current of the same polarity from a source included in the circuits of the punch-magnets, and a variable resistance included in the circuits of the punchmagnets between the polarized relay and the source of energy.

5. In an electromagnetic tape-perforator, the combination with the punch-magnets, their controlling-relays, and the lever controlling the circuits of the relays and punch-magnets, of means adapted to draw the tape continuously past the punches, a magnet for effecting the stopping of the traverse of the tape, its circuit also controlled by said lever, electromagnetic means energized by currents of uniform polarity to actuate said lever in one direction to effect the punching of the strip, and means for energizing said electromagnetic means by a current of reverse polarity to actuate the lever in the opposite direction to arrest the traverse of the tape by means of said magnet.

In testimony whereof I have hereunto subscribed my name.

PATRICK B. DELANY.

VVitn esses:

KATHARINE Mao MAHoN, EDWARD C. DAVIDSON.

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