US779153A - Apparatus for perforating the type-bands for automatic telegraph transmitting apparatus or the like. - Google Patents

Description

1%. mm. PATEN'PFD M. Q, 1005. A. FRANKIE & E. EHRHARDT. APPARATUS FOR PERFORATING- THE TYPE BANDS FOR AUTOMATIG TELEGRAPH TRANSMITTING APPARATUS OR THE LIKE.

ZSEEBTS-QEEBT 1.

ad-0% J APPLIOATION FILED FEB. 29, 1904.

No. 779,153. PATENTED JAN. 9, 1905.

v A. PRANKE & E. EHRHARDT. APPARATUS FOR PERFORATING THE TYPE BANDS FOR AUTOMATIC TELEGRAPH TRANSMITTING APPARATUS ORTHE LIKE.

APPLICATION FILED T11R29. 1904. 1

2 SHEETS-SHEET 2.

am/0A ZUZIZLa/doU dear/4% UNITED STATES Patented January 3, 1905.

PATENT Orricn.

ADOLF FRANKE, OF GROSS-LICHTERFELDE, NEAR BERLIN, AND ERWIN EHRHARDT, OF BERLIN, GERMANY, ASSIGNORS TO SIEMENS & HALSKE, AKTIEN-GESELLSGHAFT, OF BERLIN, GERMANY.

APPARATUS FOR PERFORATING THF TYPE-BANDS FOR AUTOMATIC TELEGRAPH TRANSMITTING APPARATUS OR THE LIKE.

SPECIFICATIONfor-ming part of Letters Patent No. 779,153, dated January 3, 1905.

Application filed February 29, 1904. Serial No. 195,955.

To all whom it may concern:

Be it known that we, ADOLF FRANKIE, engineer, a subject of 'the King of Prussia, German Emperor, residing at 23 Sternstrasse, Gross-Lichterfelde, near Berlin, and ERWIN EHRHARDT, engineer, a subject of the Prince of Reuss, residing at S. W. 4. Askanisther Platz, Berlin, Germany, have invented a certain new and useful Improvement in Apparatus for Perforating the Type-Bands for Automatic Telegraph Transmitting Apparatus or the Like, of which the following is a full, clear, concise, and exact description.

Our invention relates to a perforating apparatus serving for the production of perforated type-bands, such as are used in particular for rapid telegraphy with automatic telegraphic transmitters. These perforating apparatus operate in such manner that a set of perforating-punches over which the paper band is drawn with a step-by-step motion are operated upon by a keyboard and suitable intermediate mechanism in such manner that the separate punches thereof are forced through the paper in certain combinations corresponding to the letter or symbol to be'produced. Generally the said combinations are previously prepared in groups in the apparatus in the form of suitable mechanically or electrically acting elements, so that merely by a pressure on a corresponding key the desired combination is brought into action as a whole, so as to produce a complete group of perforations representing the desired letter or symbol.

' Accordingto the present invention the combinations of mechanical elements corresponding tothe groups of perforations are arranged in the form of groups of pinssituated in parallel rows upon the periphery of a continuously-revolving drum or equivalent device and are made at a certain point of the path through which they travel to cooperate with the set of perforating-punches, so that according to the position of the pin-drum at the moment of cooperation a certain group of pins comes into action, so as to produce a corresponding combination of holes in the typeband.

an auxiliary power can be applied effectively for the actual punching operation and for actuating the punching mechanism, that the speed of working determined by the most rapid manipulation by hand can be easily attained, and that it enables an effective and strong construction based on mechanical principles to be employed that satisfies all practical requirements.

In the accompanying drawings is shown the construction of apparatus preferably employed for carrying out the invention.

Figure 1 shows a part front view and part vertical section of the complete apparatus.

Fig. 2 shows a side view of its upper part;

Fig. 3, a sectional plan on line I I, Fig. 2. Fig. 4 shows a part section with the stopping and releasing devices in a difierent position from that at Fig. 1, and Fig. 5 a transverse sectional side view of the parts shown in Fig. 4.

w is the pin-drum, and p the punch-frame, which is here shown immediately opposite the pin-drum. The latter revolves with the vertical spindle b and receives motion through the bevel-wheels r r from the shaft 0, driven by an external source of poweras, for instance, a small electric motor. The punchframe 29 is mounted on lever 12. a by means of two lateral projections 9, so as to be capable of rocking thereon, and is generally held by the stop (1 and spring 9 in a certain normal position. The levers a a are pivotally mounted on a spindle u and are generally drawn by springs .9 against the stops 8.

In the front part of the punch-frame p is arranged the row of punches, Figs. 2 and 3, the one end surface of which is presented to the pin-drum, While the other end surface is presented to the paper band led through the slot cl of the frame 1). The punches are separately movable and are acted upon by springs f, engaging with grooves, so as to hold these normally in the position shown. In conse- The advantages of this invention are that,

quence of this arrangement when the punchframe 19 is pressed against the pin-drum the separate punches in coming in contact with the pin which may happen to be opposite them will be pressed through the paper band, so that a group of holes is formed corresponding to the particular combination of pins that act upon the punches. As all the requisite combinations of pins are provided on the drum, it is only necessary to effect the said pressing of the punches against the pin-drum at the moment when a certain pin group is presented to the punches for producing the required type-perforations. The last-named operation is in the present case performed by means of an arrangement of differential gear consisting of bevel-wheels 9", r and r and two revolving arms 0 and 0 which operate in conjunction with a number of stops it, arranged in a circle and corresponding in number to the number of pin groups on the drum, the action being as follows: The levers a, carrying the punch-frame p and which, as above stated, can rock on u, are connected by short links m with a loop-shaped bar 7r, Fig. 1, mounted loose on the spindle 6, the lower limb of which bar forms a bearing for the axisc'of the middle wheel 1". It will be evident from this arrangement that the turning of the looped bar is in a certain direction will cause the punchframe to approach the pin-drum w. As the punch-frame is normally held in position relatively to the pin-drum (shown at Figs. 2 and 8) and which is determined by the stop 9, it

follows that the looped bar is and axis 2' also have a correspondingly-limited normal position.

Of the three wheels the upper one, 9 is fixed on the spindle b of the pin-drum and,

transmits the motion it receives from the bevelwheel by means of bevel-Wheel 1' to the lower wheel 7*, which is mounted loose on the hub of a bevel-wheel P, that is mounted loose on spindle b and is in gear with the bevelwheel 0*. The two wheels o and 0' which in consequence of the chosen ratio of transmission revolve in the same direction and at the same speed as the pin-drum, carry, respectively, an arm 0 and 0 fixed thereon, such arms being arranged at a slight angle to each other, as shown at Fig. 3, 0 being in advance of 0 If now a certain obstacle is opposed to the arm 0"on its rotation round spindle 6, it will be seen that in consequence of wheel 7 being stopped wheel r and its spindle will be shifted round somewhat, and in carrying the looped bar k round with them the punchframe will be moved by k and n toward the pin-drum against the action of spring 8'. On

the arm 0 being released the punch-frame will of course at once be made to spring back, together with the looped bar it and wheel r into their original position by the action of springs s.

The arresting of arm 0 for the purpose of rectly read from it.

key t, in which position the stop will lie in the path of arm 0. According to the position of the stop h, which is thus actuated, the resulting motion of the punch-frame will occur at a definite period of the revolution of the pin-drum, and consequently a correspondingly definite group of pins will be made to act upon the punches for perforating the paper. The forward motion of the punch-frame against the pin-drum must of course belirnited, and consequently the time during which the arm 0 is arrested must also be accurately determined. The arm 0 serves for this purpose, and, as above stated, it is situated at a definite angle to the arm 0' in the backward direction, as shown in Fig. 3, and it is so formed with an incline on its front operative side, as shown in Fig. 5, that when a stop it has arrested the arm 0 arm 0 in continuing to move forward bears with its incline upon acorresponding incline on the stop, and in thereby pushing the stop upward causes it to release the arm 0 and also to move out of its own path. The arm 0, as above described, is at once made to spring backinto its original position relatively to arm 0 together with the punchplate and other intermediate devices, by means of the springs s.

Briefly stated, therefore, the complete operation is as follows: On the depression of acertain key t the corresponding stop it ar rests the revolving arm 0, thereby causing the corresponding group of pins on the pin-drum to operate certain of the punches, so as to perforate the paper during the forward motion of the punch-frame, and immediately afterward the advancing arm 0 liberates arm 0 from the stop, causing it and the parts connected therewith to reassume their original positions. The forward feed of the paper is effected automatically by means of a ratchetwheel g, Figs. 2 and 3, and a spring-pawl carried by the frame, the wheel g being mounted on the same spindle with two pin-wheels j that are engaged with two lateral rows of perforations on the paper band, so that at each forward motion of the punch-frame the ratchet-Wheel g and wheels 1" are turned forward one tooth, so as to feed forward the paper just before the punching is effected. In the construction shown on the drawings there is also provided an arrangement for producing on the paper a corresponding type impression at the same time that it is perforated, so that the perforated message can be di- The upper part w of the pin-drum w is for this purpose provided with projecting types round its periphery corresponding to the respective pin groups IIO

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