US354001A

US354001A - Printing-telegraph instrument

Info

Publication number: US354001A
Authority: US
Publication date: 1886-12-07
Anticipated expiration: 1903-12-07

Description

(No Model.) 4 Sheets-Sheet 1. A. WIRSOHING. PRINTING TELEGRAPH INSTRUMENT.

No. 354,001. Patented Dec. 7, 1886.

} WITNESSES 4 efiww INVENTOR fig ATTORNEYS 4 Sheets-Sheet 2.

(No Model.)

A. WIRSGHING.

6 0O 8 1 0w 6 .D T v m t Wu M 2w MP I H P A R G E L E T G N I T N I R P .L 0 0 4 5 0O 0 N INVENTOR MN NW ATTORNEYS.

WITNESSES 4 0754M N. PETERS WWW. WaNngmn, D. C,

(No Model.) 4 Sheets-Sheet a, A. WIRSCHINGI PRINTING TELEGRAPH INSTRUMENT.

No. 354,001. Patented Dec. 7, 1886.

WITNESSES: INVENTOR 2% %&M M W fla BY 7M ATTORNEYS 1 (No Model.) 4 Sheets-Sheet 4.

A. WIRS-GHING. PRINTING TELEGRAPH INSTRUMENT. No. 354,001. Patented Dec. 7, 1886i WITNESSES.-

ATTORNEYS UNITED STATES PATENT OFFICE.

ALOYS \VIRSOHING, OF BROOKLYN, NEXV YORK.

PRINTI NG=TELEGRAPH INSTRUMENT.

SPECIFICATION forming part of Letters Patent No. 354,001, dated December 7, 1886.

Application filed July 10, 1886.

.To aZZ whom it may concern.-

Be it known that 1, Atom Museums, of Brooklyn, county of Kings, and State of New York, have invented certain new and useful Improvements in Printing-Telegraph Instruments, of which the following is a specificat-ion.

This invention relates to improvements in that class of printing-telegraph instruments in which two type-wheels are employed and impressions from either one of the same produced at the will of the operator at the transmitting-station. The invention relates more especially to certain improvements in the printingtelegraph for which Letters Patent were granted to me, No. 286,667, dated October 16, 1883, said improvements being designed with a view to simplify the construction of the instrument and to cause all the instruments in one circuit to respond in a more reliable and effective manner to the messages sent from the transmitting-station.

The invention consists of a printingtelegraph instrument in which two escapement magnets are arranged in multiple are by placing them in a split circuit, while the printingmagnet is arranged in series or single circuit with reference to the escapement-magnets, by which arrangement the entire strength of the current is transmitted to the printing-magnet, while the resistance of the escapementanag nets is diminished.

The invention consists, secondly, of a simple and effective construction ofthe unisonlever and its connection with the armature of the printing-magnet and the stop-arm on the arbor of the escapement-wheel, and, lastly, in a stop device for the double impression pad, by which any axial change of position of the same when the printing-lever is at rest is'reliably prevented.

1n the accompanying. drawings, Figure 1 represents a p an view of my improved print ing-telegraph instrument. Fig. 2 is a vertical longitudinal section of the same on the line :10 m, Fig. 1. Fig. 2 is a detail side view of the unison-lever, showing it in a position for stopping the escapement-wheel and bringing the instrument into unison. Fig. 3 is a side elevation of my improved instrument, partly in Serial No. 207,678. (No model.)

section, through the auxiliary casin Fig. 3 is a detail side view of the stop device for the impression-pads. Fig. 4 is a diagram illus-' trating the course of the current through the escapement and printing magnets, and Fig.4 is a side view of a modified construction of the unison-lever mechanism.

Similar letters of reference indicate corresponding parts.

Referring to the drawings, A represents the supporting main casing, and A the auxiliary casing, of my improved printing-telegraph instrument.

B is the arbor of the escapement-wheel B, which is driven by any suitable mechanism such as a train of gear-wheels actuated by a weight suspended on a cord running over a drum, as shown in Figs. 1 and 2.

G and D are two horseshoe electro-magnets which are arranged one above the other, and E a permanent horseshoe magnet located in front of the electro-magnets O and D.

To the poles of the permanent elcetro-magnet E are pivoted lateral]y-extending pieces or tongues E,ofsoft iron,which are connected by a bridge, 8, of non-magnetic material, and extended between the poles of the electromagnets O and D, so as to constitute there with a so-called double polarized armature. One of the tongues E is influenced by one of the poles of the upper and one of the poles of the lower clectro magnet, while the other tongue isinfiuenced by the remaining poles of the two electro-magnets O and D. From the transverse bridge 0 of the tongues E extends in opposite direction the escapement-lever E, that engages by pallets e e the teeth of the escapementwheel B, as customary in printingtelegraph instruments.

H is the printing electro-1nagnet,and H the armature ot' the same, which is attached to the arbor h of the printing-lever I. The course of the current by which the escapementmagnets and printing-magnet are energized is shown in diagram, Fig. 4, in which the escapement-magnets are located in a horizontal plane in place of a vertical plane, so as to facilitate the explanation. The current enters alternately through the binding-posts a a. according as a current of positive or negative polarity is sent through the instrument from the transmitter. When the current enters at the binding-post a,it passes along the connection Z, and is then split into two currents, which pass through the coils of the'electromagnets O and D, which are wound with fine wire. The split currents, after leaving the coils of the electro-magnets O and D, are conducted, respectively, by the wires 3 and 4to the wire 5, which conducts the united current to the printing magnet H, that is wound with coarser wire. From the printing-magnet the current passes over wire 6 to the binding-post a, and from the same either to the ground or over the line-wire to the second instrument, and so on. It will thus be seen that a direct connection of the elect'ro-magnets of each instrument is made with the line-wires, without the use of any circuit-breakingdevices,whereby the construction is simplified and the circuit interfered with to a less extent than when the circuit-breaking device shown in my prior patent is used. By splitting the current before it passes into the escapement-magnets the latter are placed in multiple are, while theprinting-magnet is placed in series, by which the full strength of the current is exerted on the printing-magnet whenever a signal has to be printed, while sufficient force is exerted on the escapement-magnets to actuate the escape- Inent-lever and escapement-wheel to perform their proper functions.

.ment-wheel B, and adapted to oscillate be-' To the axis h of the printing-lever I is applied an arm, 6, which extends in opposite direction to the armature H, and which is connected to a spiral spring, 6, that is attached to the side wall of the main casing A, and which serves as the adjusting-spring of the armature H. The arm 1' bears against a pin, 1', of a lever, F, that is pivoted at its opposite end to the sidewall of the main casing A.

. To the pivoted lever F is fulcrumed, near the pin i a second lever, F, one end of which is connected to a spiral spring, 6 while the opposite end is extended alongside of the pivoted lever F, toward the arbor of the escape tween fixed stop-pins i, one on each side of said lever, as shown respectively in Figs. 1, 2, and 2. A third stop-pin, i is located above thatend of the fulcrumed leverF to which the spiral spring 2' is connected.

To the hub of the fulcrumed lever F is attached a downwardly-extending resilient arm, 2', which is engaged by the spurs of a minutelytoothed wheel, 13, located on one of the intermediate shafts of the driving-train of gear- Wheels. By the turning motion of the spurwheel t" the resilient arm 2' is carried along, and thereby the lever F turned on its fulcrum 6 f, so that the arm located between the stoppins i is lowered and placed into the path of the unison-stop f on the arbor B of the escapement-wheel-B. When the unison-stopf arrives at the end of the fulcrumed lever F, as shown in Fig. 2, the escapement-wheel B is arrested. If the armature H of the printing-magnet is attracted, while the escapementwheel 13 is thus stopped, the arm t of the armature 11 engages the pin 1' at the outer end of the pivoted lever F and lifts the same, together with the lever F; but as simultaneously with this lifting motion the adjoining end of the lever F abuts against the stoppin i the lever F will be retained, while the lever F will be lifted; consequently the levers F F are spread apart like the blades of a pair of scissors, so that the end of the lever F between the stop'pins i is lifted and moved out of the path of the unison-stop, permitting thereby the escapement-wheel to continue its step-by step rotary motion.

In place of the resilient arm 2', a minutelytoothed segment, i, may be used, which is attached to the hub of the lever F, and which meshes withthe correspondingly-toothed spurwheel "a" on the arbor of one of the intermediate transmitting-wheels, as shown in Fig. 4 By the lifting of the lever F the resilient arm i or the segment 2" is also lifted, so as to clear the teeth of the spur-wheel i and be returned again into mesh with the latter when the'lever F is released by the dropping of the armature H. In case the unison-lever F is lowered and arrives at the lowest stop-pin before the stop-arm on the axis of the escapement-wheel comes around, the resilient arm i will give sufficiently and pass over the teeth of the spurwheel without changing its position. In case the segment i is used, it will be slightly lifted, together with the levers F F, so as to clear the teeth of thespur-wheel, but without changing its position of contact with the lower stoppin, 2'.

, The unison mechanism described is of simple construction and very positive in action, as by the lifting of the levers F F by the arm of the armature of the printing-magnet the resilient arm or its equivalent the toothed segment,is bodilylifted and taken out of mesh with the motion-transmitting spur-wheel and returned into mesh with the same, by the action of the spiral spring iflwhen thelevers are returned into their normal position. (Shown in Fig. 2.) I

The arrangementof the printing-lever, type wheels, and the double impression pads provided with alternating teeth or impressionsurfaces, together with the mechanismfor feeding the paper and actuating the doubleimpression pad, are fully described in my prior patent referred to, and need no special description in this connection. The double-impression pad, however, was liable to be shifted outof its proper relative position to the typewheels when strain was exerted thereon in taking up and pulling the tape on which the quo IIO sion between a tooth of the front part andthe next adjoining tooth ofthe rear part of the impression-pad. When the printing-lever I is raised for printing, the teeth of theimpression-pad G clear the stop-pin 9, while, when the printing-lever is lowered, the stop-pin enters into the space between the adjoining teeth of the impression-pad and checks the latter, so that no change of position can take place, even when the tape on which the type-Wheels have printed is pulled with considerable force or strain in reading the quotations or news printed on the tape. The stop-pin g prevents the turning of the impression-pad on its axis when the printing-lever is in a position of rest, and retains it in its proper relative position to the type-wheels. From the foregoing it will be readily seen that by the improved arrangement of the escapement-magnets in multiple arc and the printing-magnets in series to the former they perform their functions in a more accurate and reliable manner, so as not to in terfere with the line and the other instruments in the same circuit,and produce the reliable printing of the messages sent over the circuit.

The simplified construction of the unisonleverproduces the more accurate and reliable action of the same, so that all the instruments in one circuit are made to work in unison, while the stop device of the double-impression pad prevents any change in the position of the same when the printing-lever is at rest and holds the impression-pad in proper relative position to the type-whee1s.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. In a printing-telegraph instrument, the combination, with two escapementmagnets arranged in multiple are, of a printingmagnet arranged in series with reference to the former, substantially as set forth.

2. In a printingtelegraph instrument, the combination of two electro-magnets located vertically one above the other, a permanent horseshoe-magnet located in front of the electro-magnets, an escapement-lever pivoted to the poles of said permanent magnet and provided with soft-iron tongues extending be tween the poles of the electro-magnets, an escapement-wheel engaged by said lever, and means for actuating said escapement-wheel, substantially as set forth.

3. In a printing-telegraph instrument, the combination, with the escapementwheel and its arbor'having a stop-arm, of a printing magnet and a unison mechanism operated by the armature of the printing-magnet and composed of two levers, one pivoted to the casing of the instrument and the other fulcrumed to the pivoted lever, a spur-wheel on one of the arbors of the actuating mechanism of the escapement whcel, a device by which the fulcrumed lever is connected with said spurwheel, and stop-pins for said fulcrumed lever, substantially as set forth.

4. In a printing-telegraph instrument, the combination of the escapement-magnets, an escapement-lever operated by the same, an escapementwheel having a radial stop-arm, means for actuating said escapement-wheel, a printing-magnet, an armature actuated by the same, a unison mechanism operated by the armature of the printing-lever and composed of-a lever pivoted to the casing of the instrument, a second lever fulcrumed to the first 1ever, and a resilient arm attached to the fulcrumed lever, a spur-wheel on one of the arbors of the motion-transmitting mechanism of the escapement wheel, stop pins between which one end of the i'ulcrumed levers is oscillated, and a stop-pin by which the opposite end of the same is arrested, substantially as set forth.

5. In a printing-telegraph instrument, the combination of a printing-lever having a double-impression pad with alternating teeth, with an adjustable stop-pin that projects into the space or depression between two adjoining teeth of the double pad, substantially as set forth.

In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.

ALOYS WIRSGHING. lVitnesses:

PAUL GOEPEL, SIDNEY MANN.