US506269A

US506269A - Ments

Info

Publication number: US506269A
Authority: US
Publication date: 1893-10-10
Anticipated expiration: 1910-10-10

Description

3 Sheets-Sheet 1. R. J. SHEEHY.

(No Model.) I l PRINTING TELEGRAPH.

Patented Oct. 10, 1893.

3 SheetsSheet 2.

; Patented 0ot .,10,-1893.

% 'Illllll III (NoModel') R J SHEEHY' PRINTING TELEGRAPH- (No Model.)

R; J. SHBEHY.

PRINTING TELEGRAPH.

No. 506,269. Patented Oct. 10, 1893.

Q/Vi/Dwmo 3144mm 113064921 1 J'ee] a Sheets-Shet 3.

WW I

UNITED STATES PATENT OFFICE.

ROBERT J. SHEEHY, OF NEW YORK, N. Y., ASSIGNOR, BY MESNE ASSIGN- MENTS, TO W'ENDELL GOODWIN, OF SAME PLACE.

PRINTING-TELEGRAPH.

SPECIFICATION forming part of Letters Patent No. 506,269, dated October 10, 1893.

Application filed March 11, 1886. Renewed March 15, 1898. Serial No. 466,169. (No model.)

To all whom it may concern:

Be it known that I, ROBERT J. SHEEHY, a citizen of the United States, residing in New York, in the county and State of New York, have invented certain new and useful Improvements in Printing-Telegraphs, of which the followingis a specification.

The invention relates to the class of apparatus employed for printing messages and dispatches, from one or more type-wheels, revolved by means of electric currents transmitted from a distant station.

The object of the invention, is to provide an instrument capable of efficient work, which is rapid and noiseless in its operation, and is driven without the use of weights and springs such as are usually employed in this class of instruments.

In general terms the invention consists in organizing a printing instrument in substantially the following manner:The typewheels are mounted upon a shaft which is driven by means of two revolving armaturelevers, alternately acted upon by two independent electro-magnets. These electro-magnets are included in independent circuits and are designed to be alternately vitalized. One electro-magnet,with its armature-lever, serves to advance the type-wheel shaft a distance correspondingtoonetype. Theotherelectro-magnet is then vitalized and the consequent movement of its armature-lever advances the type Wheel another equal space, at the same time advancing the first armature-lever a corresponding distance, so that when its magnet is subsequently vitalized its armature-lever is again advanced by the attraction of the magnet. In this manner the type-wheel shaft is advanced step-by-step, under the control of the transmitting instrument. Impressions are preferably taken from either of the two type-wheels at will, by means of a press-lever which is actuated by a current of the proper character, transmitted through either of two electro-magnets. These press-magnets are respectively included in the two line wires, and when the type-wheels have been placed in any required position, by means of a current through either of the type-wheel electromagnets, then either a prolonged current or a current of increased strength is caused to traverse the same line wire, and this serves to vitalize the corresponding press-magnet. This press-magnet acts upon an armaturelever similar to those employed for revolving the type-wheels, and, through a suitable system of levers, actuates the press-lever. Both the press-magnets are constructed in the same manner and either one serves to operate the press-lever.

For the purpose of printing from one or the other type-wheel, as desired, a shifting device operated by a polarized armature is employed. The type-wheels may be driven by currents of either polarity, and in like manner the printing may be effected regardless of the polarity of the currents; but currents of one polarity will move the polarized shifting armature in one direction, and currents of the other polarity will move it in the opposite direction. The special devices operated by this armature will be described in detail, in connection with the drawings.

In the drawings, Figure 1 is a side elevation, partly in section, of an instrument embodying the features of the invention. Fig. 2 is a transverse section of the same. Fig. 3 is 'an elevation of the front of the instrument. Fig.4 is a plan view of the same and Fig. 5 illustrates certain details.

Referring to the figures, A and A represent two type-wheels, the former of which is designed to carry essentially numerals, and is termed the figure type-wheel, and the latter carries letters These wheels are mounted upon a shaft A. The shaft carries a toothed wheel B which meshes with two pinionsB and B The pinion B is carried upon an arbor c, carrying an armature G. The pinion B is carried upon an arbor 0 carrying an armature 0 Two electro-magnets D and D respectively included in main lines L and L act upon the armaturesO and G The armatures are each constructed, with forwardly projecting arms 6', e which are preferably curved in arcs of circlesslightly eccentric, with reference to the centers of the arbors, so that the ends of the arms e, e are nearer the centers of the arbors, than the ends of the arms e, from which they extend. The ends of the arms 6 may with advantage be curved to conform with arcs of circles, concentric with the centers of the arbors. The polepieces of the electro-magnets D and D extend laterally toward the corresponding armatnres, and they are preferably prolonged upon one side forming sections of circularfields, for the armatnres, as shown at d, d and (1 (P. The armatures are so placed with reference to the pinions meshing with the wheel 13, that when one armature is drawn into its closest proximity to the poles of the electromagnet, then the other armature will be away from the poles of its electromagnet, and thus when one armature is in position to be attracted by its electro-magnet, the other will be in a position of rest, with reference to its magnet. The peculiar form of the armature-levers and the pole-pieces insures that, when the magnets are alternately vitalized, they will be driven forward step-by-step, thus advancing the type-wheel shaft. A ratchet wheelf, upon the shaft A, and a pawlf prevent a backward movement of the type-wheel shaft. Two press-magnets G and G2 are also respectively included in the lines L and L These magnets are constructed with single straight cores g and g respectively, and surrounding coils h h and 7&2 7L2. The coils are preferably separated slightly at the centers of the cores, for the purpose of allowing a rockshaft H to pass between them. This shaft carries two armatures J and J which are respectively applied to polar extensions j j and j j of the electro-magnets G and G These extensions are brought from the respective poles of the corresponding magnets, in a direction parallel to the cores, and are prolonged and curved at their ends in a manner similar to the extensions of the magnets D and D The armatures J and J are similar in construction to the armatures C and 0 but they are so placed upon the shaft J, that when the magnet G is vitalized, the shaft will be turned in one direction and when the magnet G is vitalized it is turned in the opposite direction. It is not designed to complete a revolution, however, but after the attraction of one or the other of the magnets, it is returned to its normal position by means of a spring or weight if applied to a press-lever K. The rock shaft H, carries two oppositely projecting arms It and k to the ends of which two links and k are pivoted. These links are respectively connected, by means of slots k and pins k with the lever K, so that whenever the shaft H is moved by either armature, the lever K will be actuated. The weight of the lever, assisted by a spring 15 if it is desired, returns the lever to its normal position, when the armatu res are released, and at the same time returns the shaft H to its normal position. The lever K serves to actuate a press-mechanism consisting of two printing-platensaandafirespectivelyapplied to the two type-wheels A and A One or the other of these platens is raised accordingly,

as a movable arm n is in the position shown in the drawings, or in a reverse position. The press-lever when actuated raises a plate N carrying a lug p. This is designed to engage one or the other of two pawls n or n which are pivoted to the respective rods 0' and 0 which carry the platens. One or the other of these pawls is tilted so that it will not be engaged by the lug p accordingly as the rod or is in the position shown in Fig. 5 or the reverse. This is accomplished by means of two arms 16' and a carried by the rod and respectively engaging arms 10" and 21; upon the pawls. When the rod 11 is in the position shown, then the arm 10 engages the arm a and throws the pawl 97, out of the path of the lug p. When the arm is moved in the opposite direction the arm '16 engages the arm a and tilts the pawl it out of the path of the lug. At the same time the pawl 12 is released. In this manner one or the other of the platens will be thrust against its typewheel, each time the press-lever is actuated.

For the purpose of releasing the platens when an impression is effected the pawls n and n are respectively constructed with arms 9" and r which are respectively engaged by adjustable banking screws 3' and s \Vhen the platens have thrust the paper against the tpye-wheels, these screws trip the pawls from the lug p, and allow the corresponding platen to fall immediately even though the press lever may remain up.

The position of the rod n, is determined by,

means of a polarized armature T supported at its center by an arbor q. The respective poles t and t of this armature are extended into proximity to the extension of one pole of each electro-magnet G and G When either magnet is vitalized by a current of a given polarity, then the armature T will be rocked in a given direction, but when it is vitalized by a current of the opposite polarity, then the armature will be rocked in the opposite direction, and in whichever position it is placed it will remain until the direction of the current is reversed; so that if the instrument is operated by currentsof one polarity, the armature will be in one position, but if operated by currents of the other polarity, the armature will be placed in the opposite position. As already stated, the instrument may be operated by currents of either polarity at will. The arbor q carries an arm g, which islinked to an angle-arm g supported upon a pivot g". This in turn is connected with the rod n, and thus the movements of the rod 12 are controlled by the armature T, so that when it is desired to print from one type-whee1,the instrument is operated by currents of a given polarity, and when it is desired to print from the other wheel, the instrument is operated by currents of the opposite polarity.

It is designed that any suitable form of transmitting apparatus shall be employed for sending currents required for operating the instrument. In the drawings there is shown IZC a theoretical diagram, illustrating a method of organizing apparatus for transmitting the required currents. In this diagram, R represents a key for transmitting currents from a battery 0 upon the lines L and L alternately, and R represents a key for increasing the. strength of the current at any time sent to either line, by cutting out a resistance R. A current-reversing or pole changing switch R serves to determine the polarity of the current sent to line.

For the purpose of preventing the paper from being thrust against one wheel when an impression is being taken from the other an arm ,1) having two fingers o and o -is employed. This arm is attached to the rod 12 and moves back and forth with it. When the parts are in position to operate the platen a the finger o is above the edge of the paper over the platen a so that as the platen a carries the paper against the wheel A, it is held back from the wheel A When the rod n is moved in the opposite direction, the finger Q) holds the paper away from the type-wheel A.

I claim as my invention 1. The combination of two main lines, two electro-magnets respectively included therein, two armatures respectively applied to said electro-magnets, a type-wheel shaft and two type-wheels thereon revolved by the alternate actions of said electro-magnets, two pressmagnets respectively included in said main lines, a single press-leveracted upon by either of the press-magnets, and a polarized armature applied to the last named electro-magnets, for determining from which of said typewheels an impression shall be effected.

2. The combination of two independent electro-magnets, two armatures respectively applied thereto, their respective shafts, a typewheel shaft and a mechanical connection between said armatures and said type-wheel shaft, whereby each armature is alternately advanced by avit-alization of its electro-magnot and by the action of the other armature, through the type-wheel shaft and said mechanical connection, substantially as described, two type-wheels upon said type wheel shaft, and means, substantially as described, for effecting impressions from said typewheels.

3. The combination with a type-wheel shaft,

of two independent electro-magnets, two armatures respectively controlled by said electro-magnets, for advancing said shaft, two armature-shafts respectively carrying said armatures, and a connection between the armature-shafts whereby each armature is alternately advanced by the operation of the other armature, andby the action of its own electro-magnet, and two type-wheels upon said type-wheel shaft, and means, substantially as described, for effecting impressions from said type-wheels.

4. In a printing telegraph instrument, the combination of two electro-magnets, two magnetically independent revolving armatures I respectively applied thereto, a type-wheel, its

shaft, and a gear connection between said armatures' and said shaft.

5. The combination of a type-wheel shaft, a gear-wheel upon said shaft, two revolving armatures, their arbors, pinions upon said arbors meshing with said gear-wheel, two electro-magnets alternately acting upon'said armatures, a press-mechanism, and means for actuating said mechanism operated by a current transmitted through either of said elec-' tro-magnets.

6. The combination of a type-wheel shaft, two electro-magnets in independent circuits for revolving said shaft, two press-magnets respectively included in said circuits, a presslever, an oscillating shaft for operating said press-lever, and two oscillating armature-s for operating said oscillating shaft.

7. The combination, substantially as here inbefore set forth, of twdtype-wheels, means for determining the position of the same, two printing-platens, a single press-lever, two independent press-magnets respectively adapted to operate said press-lever, and armatures applied to said electro-magnets for determining which of said platens shall be actuated.

8. The combination of-a press-lever, an electro-magnet having polar extensions pro- 3 ecting toward each other, a centrally pivoted armature within the field of said extensions, and a connection between said armature and lever, substantially as described.

9. The combination, substantially as hereinbefore set forth, of two electro-magnets, a press-lever actuated by either electro-magnet, a polarized armature applied to both magnets and a shifting device operated by said polarized armature.

10. In a printing telegraph instrument, the combination of single press-lever, two electromagnets, and their armatures for operating said lever, polar extensions to said electromagnets, a polarized armature applied to said extensions, a platen-shifting bar, and a mechanical connection between said'bar and polarized armature, substantially such as described. I

1 1. The combination, substantiallyas hereinbefore set forth, of an oscillating shaft, two electro-magnets, either of which may operate such shaft, a press-lever, and two links connecting such shaft with said press-lever, substantially as described.

12. In a printing-telegraph instrument, two armatures, and two electro-magnets for operating the same, a single press-lever,a link connection between said armatures, and said lever, and type-wheels from which impressions are taken, by the action of said lever.

13. The combination of two type-wheels, two printing-platens, a single press lever, two independently movable rods carrying said platens, two 'pawls respectively pivoted to said rods and actuated by said press-lever, and mechanism for throwing either pawlout of engagement with said lever at will.

14. The combination, substantially as hereinbefore set forth, of two type-wheels, two platens applied thereto, a press-lever, two pawls respectively designed to actuate said platens, means for throwing either of said pawls into engagement with said press-lever and at the same time disengaging the other therefrom.

15. The combination, substantially as hereinbefore set forth, of a type-wheel, a printing platen, its lever, a mechanical connection between the platen and lever, and a tripping device for releasing the platen from the lever when an impression is effected.

16. The combination, substantially as hereinbefore set forth, of two type-wheels, two independently movable platens, a platen shifting device for causing one or the other of the platens to be operated at will, a laterally movable paper guard having two fingers extending above the edges of the paper, and means whereby said guard is moved laterally by the moving platen-shifting device to interpose one finger between one type-wheel and the corresponding edge of the paper and simultaneously move the other finger from between the other type-wheel and the other edge of the paper, and vice versa, according to thedirection in which the platen shifting device is operated.

17. lhe combination, substantially as set forth, of two type-wheels, two independent main lines, two independent electro-magnets respectively included in said main lines, the armatures of said magnets adapted to alternately impart impulses of rotation tosaidtypewheels, means for transmitting impulses of electricity alternately over the two main lines to advance the type-wheels step by step, an independent press magnetin each main line, a press-lever operated thereby, a platen shifting-device, means for operating the shiftingdevice in one direction by a printing current of one polarity over either line and in the opposite direction by a printing current of opposite polarity over either line, and means for transmitting over either line printing currents of either polarity.

In testimony whereof I have hereunto subscribed my name this 18th day of February, A. D. 1886.

ROBERT J. SHEEl-IY.

Witnesses:

DANL. W. EDGECOMB, CHARLES A. TERRY.