US1174286A - Automatic type-writer operator. - Google Patents

Description

L. R; ROBERTS.

AUTOMATIC TYPE WRITER OPERATOR.

KPPLLCATION FILED FEB. 29. 1912.

1,174,286. Patenfed Mai. 7,1916.

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L. R. ROBERTS.

AUTOMATIC TYPE WRITER OPERATOR.

APPLICATION FILED FEB.29,1912.

Patented Mar. 7, 1916.

7 SHEETS-SHEET 3.

L. R. ROBERTS.

AuT0MAT|c TYPE WRITER OPERATOR.

APPLICATION FILED FEB. 29, I912.

1,174,286 T Patented Mar. 7,1916.

7 SHEETS-SHEET 4.

L. R. ROBERTS.

AUTOMATIC TYPE WRITER OPERATOR.

APPLICATION FILED FEB. 29. 1912.

Patented Mar. 7, 1916.

YSHEETS-SHEET 5.

L. R. ROBERTS.

AUTOMATIC TYPE WRITER OPERATOR. APPLICATION FILED FEB. 29,1912.

1,174,286. Patented Mar. 7, 1916.

7 SHEETS-SHEET 6.

FIG. I0.

THE COLUMBIA PLANOGRAPH C9,, WASHINGTON, 04 c.

L. R. ROBERTS.

AUTOMATIC TYPE WRITER OPERATOR.

APPLICATION FILED FEB. 29. 1912.

1,174,286. 7 Patented Mar. 7,1916.

7 SHEETSSHEET 7.

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.nnirnp srarns PATENT oration) L YMAN B. ROBERTS, OF RUTHERFORD, NEW JERSEY, ASSIGNOR T0 UNDEBWOOD TYPE- WBITER COMPANY, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE.

AUTOMATIC TYPE-WRITER OPERATOR.

Specification of Letters Patent.

Patented Mar. *7, 1916.

Application filed. February 29, 1912. Serial No. 680,586.

To all whom it may canoe m:

Be it known that I, LYMAN R. Ronnn'rs, a citizen of the United States, residing in Rutherford, in the county of Bergen and State of New Jersey, have invented certain new and useful Improvements in Automatic Type-Writer Operators, of which the following is a specification.

This invention relates to a controller for typewriter operators, such as the Underwood-Roberts automatic operator illustrated in Patent No. 1,109,597 issued September 1, 1914-, to Charles L. Davis and me jointly,and in my pending application, No. 646,97 5, filed August 31, 1911.

The invention covers means for writing new matter on each new pieceof work, as for example, the writing of a series of different names and addresses on a pack of envelope.

In my application No. 646,97 5 above mentioned, I showed how separate names and addresses would be written under the control of a continuous mastershcet.

According to the present lnvention, there is provided a controller or mechanism operable by a series of individual master cards v.or members, together with means for controlling the master members so-that they automatically feed from a magazine to effective positions and after performing their functions are discharged. A mailing or other list can be kept in this manner on a series of separate cards, and the substitution, correction or destruction of one card does not affect another card. Such an arrangement also enables the address cards to be kept in alphabetical or any other order,

primary and secondary pneumatics. Each primary pneumatic is connected to corresponoling apertures or openings in a pair of trackers or tracker boards, so that the operation of thepneumatic actuators can be controlled from either tracker. In the adaptation of this invention, only one tracker is used to control the actuation of the'typewriting mechanism, while the other is used to control the feeding and removal of the envelop. The master cards are each provided with a perforation enabling the shifting of the activity from the typewriterkey-controlling tracker to the other tracker, to remove the envelop just having received the name and address, and substituting a new envelop therefor. This shift, while deadening the card controlled tracker, starts into operation a mechanism for substituting a fresh card with perforations corresponding to a new name and address, so that the actions of gettino" rid of the old card and old envelop and supplying in place thereof a new card and envelop, are carried on c,0n-' comitantly, whereby the fresh envelop will be at the printing point of the typewriter when the other master card is ready to start the control of the operation of writing a.

new address from the associated tracker.

The shift from one tracker to the other is controlled by perforations in the associated active master members, which cause the incitation of the pneumatic actuators to shift gearing, enabling the bringing into action of the inactive tracker with the concomitant silencing of the active tracker.

More specifically, the silencing of the card controlled tracker operates connections to open a valve to the primary pneumatic of a pneumatic control, enabling the collapse of a pneumatic bellows motor to connect up a card substitutor in driven relation with the source of power, so that a new card will be put into position automatically.

The card tracker is shown to be controlled indirectly by providing a series of stops or valves for the openings therein, which are held in their closed positions by bars bearinn against the blank surface of the cards. When the bearing points of the bars fall into perforations in the cards, the associated stops or valves are opened to admit air to incite into action the connected actuators.

Other features and advantages will hereinafter appear.

In the accompanying drawings, Figure 1 is a vertical section through the card-substituting mechanism, and the means for feeding the individual cards. Fig. 2 is a fragmentary detail section showing one of the traversing racks just thrown out of mesh with its associated driving gear. Fig. 3 is a vertical perspective view, looking at the outside of the card-substituting and feeding attachment. Fig. 4 is a vertical section through one of the pneumatic controls, showing the parts of the primary and secondary pneumatics thereof. Fig. 5 is a perspective view of the parts, shown in Fig. 3, looking at the attachment from the opposite side. Fig. 6 is a fragmentary view in side elevation, with parts broken away, to show the underlying structure, showing certain details of the typewriter actuating mechanism in connection with the card control therefor. Fig. 7 is a detail section, showing the control valve, which starts the substituting of a new card, in its open position. Fig. 8 is a view of the parts shown in Fig. 7, with the valve in its closed position. Fig. 9 is a skeleton perspective view, showing the card substituting and feeding mechanism with its parts in their active position, in the act of substituting a new card for the one previously in control. Fig. 10 is a detail section in elevation, showing the envelop substituting and feeding mechanism. Fig. 11 is a fragmentary perspective view of the master sheet for controlling the feeding of the envelops. Fig. 12 is a fragmentary perspective view, showing the elements whereby the master cards control the open and closed position of one of the stops or valves for the typewriter key-controlling tracker, and showing the bearing point in one of the apertures of the master card corresponding to an open position of the associated valve or stop. Fig. 13 is a skeleton view in elevation, and partly in section, of a modified form of control for starting the substitution of a fresh master card.

Referring more particularly to the separate parts of this invention as embodied in the form shown in the drawings, 1 indicates a typewriter which may be of any suitable form, such as the Underwood, and is provided with the usual type keys 2 which act in the usual manner when depressed. These type keys are struck by hammers 3 connected individually to individual pneumatic bellows motors 4 of a series.

Each bellows motor 4 is adapted to be collapsed under a suction from a suitable source such as the vacuum pump indicated at 5. so that when so collapsed, it will actuate its associated hammer 8 to strike the corresponding typewriter key 2. The bellows motor 1 in each instance, forms a part of a pneumatic actuator which also includes a pneumatic control 6 connected thereto by a pipe or conduit 7.

Each pneumatic control, of which there is one for every actuator, and hence for every part to be actuated, embodies a primary pneumatic 8 and a secondary pneumatic 9. Each primary pneumatic 8 in the several pneumatic actuators, is connected by pipes 10 and 11 to trackers or tracker boards 12 and 13, so that its action can be controlled from either tracker. These trackers are provided with apertures, one for each pneumatic actuator, which apertures are normally held closed, but at desired intervals, are opened to admit air to the primary pneumatic, whereby the associated pneumatic actuator is incited to action, so that its pneumatic bellows motor Will be collapsed to operate the connected mechanism. Inasmuch as these pneumatic actuators are used throughout for the numerous elements, it will be well at this point to describe the action of a pneumatic control embodying the primary and secondary pneumatics. By reference to Fig. 1, it will be seen that air, on being admitted through the aperture in one of the trackers 12 or 13, will flow through the connecting pipe 10, to a chamber 1% in the bottom of the primary pneumatic 8, which is normally connected to a suction chamber 15 on the opposite side of a diaphragm 16 by means of a bleed opening 17, so that the chamber 1 1 is normally under a vacuum. It will be understood in passing, that the chamber 15 in each pneumatic control is connected by suitable pipes 18 to the source of suction indicated by the suction pump 5.

As soon as the air is admitted beneath the diaphragm 16 it cannot pass quickly enough through the small bleed opening 17, so that it raises the diaphragm 16, carrying with it a valve stem 19, whereby a valve 20 on the stem 19 moves up to close an opening 21 between the suction chamber 15 and a compartment 22. At the same time, a valve 23 carried by the stem 19, is moved up to uncover an opening 2 1, admitting air to the compartment 22. Air thus admitted, is carried around by means of a pipe 25, to the under side of a diaphragm 26, forming the top wall of a compartment 27 at the bottom of the secondary pneumatic 9. This com partment 27 is also connected by a bleed opening 28 to the suction chamber 15, but this opening is not sufficient to overcome the air entering the chamber 27 through the pipe 25, so that the diaphragm 26 will be forced upwardly, carrying with it a valve stem 29. The valve stem, in rising, uncovers an opening 30 in a partition between the suction chamber 15 and a compartment 31, so that this compartment 31 is exposed to the suction of the chamber 15. Valve stem 29 also lifts a valve 32 from an opening 33., temporarily admitting air to the chamber 31 but almost instantly closing the opening 33 by a valve 34, so that the compartment 31 is exposed solely to the suction of the chamber 15. i

The compartment 31 is connected as above-mentioned, in the case of each pneumatic actuator, by the pipe 7 to the collapsible pneumatic bellows motor 4, so that when the compartment 31v is exposed to the vacuum or suction, the motor 4 will likewise be exposed to the suction, so that it will be collapsed, causing the actuation of the associated mechanism.

In the case of the tracker 12, its action may be controlled by an endless. master sheet 35, which is guided in front of the tracker 12 by means of rollers 36 and 37. The form of the master sheet will be seen by reference more particularly to Fig. 11. It will be seen by reference to this figure, that the master sheet is provided with a slot or aperture 38, which when it comes into register'with the corresponding aperture in the tracker 12, will admit air by means of a pipe 39 to the primary pneumatic of a pneumatic control 40 which is associated with a bellows motor 41 to form a pneumatic actuator for an envelop supplying or feeding device, more particularly described and claimed in my pending application No; 646,975. Describing this mechanism briefly, it may be said that the motor 41, when it collapses, pulls down on a link 42 to rock a bell crank 43, having forwardly projecting arms 44, which carry at their front ends an envelop engager 45 adapted to catch on the flap of the foremost of a series of envelops 46, so as to remove it from its pack and feed it to the bite of a platen 47 belonging to the typewriter 1.

The envelops 46 will be supported in a pack in any suitable manner, as by means of an envelop holder 48 having a movable bacr 49 adjusting itself automatically by means of springs to keep the envelops up into contact with the engager 45. As soon as the envelop has been fed to the platen 47, the master sheet 35 which is continuously movin will bring another aperture 50 in opposition to a corresponding opening in the tracker 12, so as to admit air to the primary pneumatic of a pneumatic control 51, which enables the collapsing of a pneumatic bellows 52 associated therewith to form apneumatic actuator. This bellows 52 will draw down on a link 53 to rock a spring returned'arm 54, which engages at its forward end a platen rotating mechanism indicated in general at 55, so that the platen 47 will be rotated a predetermined distance to carry the envelop around.

As will be seen by reference to Fig. 11, the'master sheet 35 is provided with four of the apertures 50, so thatan envelop will be mechanism for the brought around to the printing point by four strokes of the arm 54. At the same time that this envelop isbeing supplied to the platen 47, the previous envelop which has been written upon, will be fed out between a pair of rollers 56 and 57' into a chute 58, which carries it. from the machine in a manner described in my application No. 646,975.

.When the master sheet 35 has finished its work for; the time being, that is, when ithas properly positioned an envelop for a new address on the platen 47, another aperture 59 will come in register with a corresponding opening in the tracker 12, so as to shift the control from the tracker 12 to the tracker 13. This brings in action'a shift gearing, which will now be described.

The roll 37 is provided with a gear 60,

with which is arranged to be brought into mesh a gear 61 carried by a shaft 62 on a rocker 63. This shaft 62 also is provided with a large gear 64 which mesheswith a pinion 65 on a shaft 66. When the rocker 63 is in the position shown in Fig. 6, the gear 6-1 is out of mesh with the gear 60, so that the roller 37 is idle, and not driven from the source of power. The gear 61 also carries a roller, not shown, which bears on top of the master sheet 35, and causes the master sheet to be fed between the two facing rollers.

vided with .a pinion 72 meshing with a gear 73 on a shaft 74. The shaft 74 likewise carries a gear 75 capable of being brought into mesh with a gear 76 when a rocker 77 which carries shaft 74 is depressed to the position shown in Fig. 6.

The rocker 77 when bringing the gear 75 in mesh with the gear 76, starts the card control for actuating the typewriter mechanism; and when moving to a position bringing gear 75 out of mesh with gear 76, disconnects or silences the card control at the same time that the rocker 63 is moved to bring the gear 61 in mesh with the gear 60, so as to start the action of the master sheet 35. To accomplish this concomitant shifting of the rockers 77 and 63, there is provided a shifter 78, which is shown to be in the form of a lever pivotally mounted intermediate its ends, and provided with pins 79 and 80 adapted to engage respectively with inclined surfaces on the rockers 77 and 63.

The shifter 7 8 is swungfirst in one direction and then in the other, by plungers 81 and 82 connected to bell cranks S3 and 81, which in turn are operated by pneumatic actuators 85 and 86, each of which embodies a motor 87 and a pneumatic control 88 having the usual primary and secondary pneumatics, the former of which is connected by suitable pipes to corresponding apertures in the accord-ant trackers 12 and 13. The primary pneumatic of the actuator 85 is connected to the tracker 12, and the primary pneumatic of the actuator 86 is connected to the tracker 13.

It will be seen that the arrangement is such, that the master sheet 35 will control through its tracker 12, the disconnection of the driving mechanism therefor at the same time that the rocker 77 is shifted to permit the gear to come in mesh with the gear 7 6, so as to start the card controlling mechanism in action, this happening when the aperture 59 above mentioned, see Fig. 11, comes in register with the corresponding aperture in the tracker 12.

While the tracker 13 is provided with apertures similar to those of the tracker 12, they are in this instance shown to be indirectly controlled, that is to say, the series of master cards indicated at 89 do not come directly in contact with the tracker 13. They are, however, fed by means of a pair of rollers 90 and 91 past a supplementary tracker 92, which, however, is in the form of a blank tracker unprovided with apertures. The rollers 90 and 91 which may be in the form of spaced segments, as will be seen by reference to Figs. 3 and 9, are provided with gears 93 and 9 1, which may at times be in mesh with each other, so as to obtain a corresponding rotation in opposite directions, to feed the card between them past the blank tracker 92. One of the rollers or the shaft therefor is also provided with a gear 95, whereby it may obtain its drive from the gear 7 6 when the latter is in motion, through the intermediary of an idle gear 96.

It will be seen by reference to Fig. 1, that the card passes down through a guide 97 when fed by the rollers 90 and 91, which project through openings in opposite sides of the guide. This guide is but slightly larger than the thickness of the card, so that but a single card can pass into it from the pack of cards supported above.

As the cards are passed by the blank tracker 92, the openings therein permit pin bars 98 to fall inwardly a distance equal to the thickness of the card, so that levers may rock under the tension of springs 100, to draw associated stops 101 away from the apertures in the tracker 18. It will be seen that the pin bars 98, of which there is one for each aperture in the tracker 13, are pivotally connected to the levers 99 rather closely to the pivot points of said levers, so that the movement of the stops 101 will be considerably greater than the thickness of the card, that is to say, considerably greater than the extent of movement of the points of the pin bars 98.

The stops 101 may be provided with any suitable soft packing face 10:2, such as felt, so as to form an air-tight cover for the apertures in the tracker 18. The stops 101 are also preferably confined in their movement to a direct sliding movement away from and toward the face of the tracker 18, so that the apertures will be positively closed and opened without any danger of leakage. This is obtained as will be seen by reference to Fig. l and Fig. 12, by providing a guide 103 having spaced flanges 10 t and 105. in which alined guiding openings 106 and 107 are provided for the stem 108 of each stop.

A collar 109 may be adjustably mounted on each stem so as to form a point of connection between the stop and the associated lever 99, by engaging in a slot in the end of the associated lever. It will be seen that while the springs 100 tend to hold the points of the pin bars 98 in the apertures of the active master card 89, the downward movement of the active card will cause the top margin of the opening in action to engage a bevel 110 provided on the upper side of the point of the pin bar, so as to cam it out and cause it to bear on the blank surface of the card. Normally, before any of the openings in the master card come into res:- ister with the points of the pin bars 98, they all bear against the blank surface of the card holding all of the associated stops 101. tightlv covering the apposite apertures in the tracker 13.

When the master card 89 in action has reached the end of its task of writing a name and address on the envelop in position at the printing point of the tvpewriter, an aperture 111 therein will come in register with a corresponding pin bar, so as to open up an as ociated aperture in the tracker 18, whereby air may be admitted to the primary pneumatic of the pneumatic actuator 86. so as to incite this actuator to action, causing the plunger 82 to swing the shifter 78 from the position shown in Fig. 6 to the o pos te limit of its throw, whereby the gear 75 will be brought out of mesh with the gear 76, silencing the drive to the rollers 90 and 91. and at the same time whereby the gear 61 will be permitted to drop into mesh with the gear 60, starting the movement of the master sheet 34. It will be seen that the bringing of the gear 75 out of mesh with gear 76 is accomplished by ra s ng the forward end of the rocker 77. This is used to accom lish another purpose, 7:. e., that of substituting a new card for the card previously in action. In carrying this out, there is provided an adjustable screw 112, see Figs. 1 and 3, which rests on the top of the rocker 77 and will be raised so as'to raise one end of a lever 11.3 to which it is secured. This lever is pivoted intermediate its ends, and is provided at its position by means of a spring-pressed latch or detent 119, until said detent is subsequently manipulated to release the valve, which will then automatically close. WVhen the valve 116 is opened, however, it admits air to the primary pneumatic 120 of a pneumatic control 121. This pneumatic control acts similarly to the pneumatic control described above, so as to collapse a pneumatic motor 122, which forms therewith a pneu-,

matic actuator, whereby a link123 will be drawn on to rock a shaft 124, through the intermediary of an arm 125. The shaft 124 is also provided with a pair of arms 126, arranged on opposite ends thereof, and'each adapted to engage on its downward swing with an associated shifter, shown in the form of a pivotally mounted bell crank lever 127, provided with a bearing roller 128 adapted to engage a rack bar 129 pivotally mounted at its upper end on a slidinglv mounted card substitutor 130. It will be understood that there is one of these racks on each side of the machine, and that thev are each actuated by the associated shifter to be brought into engagement with a pair of d iving gears 131 secured to the opposite ends ofwa shaft 132.; This shaft 132 is also provided with a gear 133 mesh ing with a gear 134, which in turn is driven by thegear 73 whetherthe latter is in its upper or lower position; that is to say, the shaft 132 and the gears carried thereby, are constantly in motion, but transfer their drive to the rack bars 129 only when the latter are in engagement with the gears 131.

It has been seen that when the card in motion has finished its work, it automati callyshifts the control to the master sheet 35, sothat a new envelop will be supplied and brought around to the printing position thereof, and at the same time the valve 116 is opened, so as to connect the racks 129 to the gears 131, whereby the card substitutor 130 will be started on its downward motion.

It will be seen that the card substitutor 130 which is in the form of a slide is provided adjacent its upper end with al hQ J andthus disconnect the bars 129..

zontal projecting ledge or overhang 135, which although very small, is of sufficient magnitude to engage solely over the top edge of the first card in the pack of cards, as shown in Fig. 1, and will carry this card down with it into the space provided in the guide 97.

The substitutor 130 may be guided in its motion by means of suitable rollers 136 engaging tracks 137. In order, however, that the movement of the card substitutor 130 may be absolutely perfect, so that the substituted card will be justified in its position,

thereis provided a pair of fixed racks 138 arranged on opposite sides of the substitutor 130, and with which engage pinions .139 and140 secured to a shaft 141 rotatably mounted on the card substitutor 130. By this arrangement, the movement of the sub stitutor 130 is'accurately determined as the gears 139 and 140 are always in mesh with the associated rack bars 138.

At the instant the shifters 127 move their associated rack bars into mesh with the apposite gears 131, they are locked in such position by latches 142 swinging from the position shown in Fig. 2 to the position shown in Fig. 1, whereby notches 143 therein will catch pins 144 provided on the shifters 127.

When the card substitutor 130 has reached the limit of its downward movement, so

that it has placed the new card in position between the rollers 90 and 91, pins, 145, one of which is provided on each rack l29, will come in engagement with the associated latch 142,-s0 as to snap them against the tension of springs 146, from the position shown in Fig. 1 to the position shown in Fig. 2, wherein the pins 144 will occupy supplementary notches 147 on the latches 142. This will permit the racks 129 to swing out of mesh with the gears 131, so as to permit the card substitutor 130 to rise to its previous position. The action, .however, is a positive one, and for this purpose the racks 129 are in the form of hell cranks and provided with short arms 148,

which are connected by links 149 to levers 150.

The levers 150 are provided with springs 151, normally tending to raise the arms 150 These springs are also strong enough to lift the card substitutor 130 from its depressed position to its raised position.

It will be noted that so long as the valve 116 is open, the motor 122 will be collapsed, so that the racks 129 would be positively held in engagement with the associated gears 131. To avoid tiis difliculty, the card substitutor in its downward movement before it reaches the end of its stroke, permits the valve 116 to close. This is accomplished by one ofthe arms 150 engaginga cam foot 151 on a tripping lever 152, which is connected to the latch 119 in such a manner, that it can move the same from the path of the projection 115 on the valve 116, permitting the latter to close. The link 152 is provided with a finger grip 153, so that it can be manipulated manually if desired. Incidentally, the downward movement of the levers 150 performs another function, and that is of spreading the r llers 90 and 91, so as to permit the new card to come easily between them. To accomplish this, the levers 150 are provided with pins 151 which engage in slots 155 in the ends of levers 156, which are provided at their opposite ends with cam feet 157 engaging contact rollers 158 on rockers 159. The rockers 159 are pivotally mounted intermediate their ends, and carry the roller 90 between them. Springs 160 are provided, however, which normally tend to hold the roller 90 in its position nearest roller 91, so that the gear 93 meshes with the gear 961.

In starting the machine, the valve 116 may he opened manually by providing the lever 113 with a finger key 161, which may be depressed to actuate the lever 113. The lever 113 is normally returned, after actuation either manually or automatically, by means of a spring 162. As a new card enters between the rollers 90 and 91, it engages the top edge of the card previously in position, and forces the latter out through the bottom of the guide 97, where it is properly directed by a deflector 163 into a card receptacle 161 The pack of cards from which the individual and foremost card is stripped at each actuation of the card substitutor 130 is held in position in a holder 165, by means of a back plate 166, which is slidinglv mounted and guided by means of rollers 167 and 163 engaging track rails 169. The guide plate is automatically fed forward, so as to force the pack of cards forward, by means of a pair of levers, 170, which are connected to the back plate, 166, by means of links 171, and are pivotally mounted on a fixed shaft 172. Each of the levers 170 has secured thereto a spring 173. These springs 173 are secured at their opposite ends to the fixed shaft 172 and are under a tension, tending to force the levers 170 and thus the back plate 166 in such a direction as to feed the pack of cards into position as the successive cards are removed from the pack.

The back plate 166 may be provided with a knob or handle 17%, whereby it can be forced back against the tension of the springs 173, to place a fresh supply of master cards in the holder.

In Fig. 13, a modification is shown, where in the starting of the card substitutor to bring a new card in position, instead of being controlled by theaction of the shifter 77 to change the drive, is controlled directly by the master card in action. For this pur pose, the master card is provided with an extra aperture which at the end of the task completed by the master card, will come in register with a corresponding aperture in the supplementary or dead tracker which latter aperture is connected by a pipe 175 to the primary pneumatic 120 of the pneumatic control 121, whereby the pneumatic motor which forms with the pneumatic control 121 a pneumatic actuator for operating the card substitutor 130, will be collapsed to rock the shaft 124, and cause the connection of the rack bars 129 in driven relation with the gears 131. This action may be also started manually by providing a hand valve 176 on the side of the machine which can be opened to admit air to the primary pneumatic 120, through the intermediary of a connected conduit or pipe 177. This form will be also automatic, it being merely necessary to provide an extra perforation on a line with the perforation 111 in the master card.

In the use of the typewriter operator for addressing a pack of envelope with different names and addresses, the envelops are placed in a stack in the holder 18, and a series of address cards in the form of perforated master cards, are stacked in the holder 165. The action of placing a card in position before the blank supplementary tracker 92 may be started by depressing the key 161 to open the valve 116, but we will consider for the purposes of illustration, that the machine is actually in action, and that one card has already controlled the printing of a name and address on an envelop at the printing point of the typewriter 1. When this card reaches the end of its effective control, the aperture 111 therein will come in register with one of the pin bars 98, permitting it to move the depth of the card, so that the connected stop 101 will be moved away from its associated aperture in the tracker 13, admitting air to the primary pneumatic of the connected pneumatic control. This pneumatic control happens to be the control of the pneumatic actuator 86, which will be incited to collapse its pneumatic bellows motor, whereby the plunger 82 will be forced against the shifter 7 8, causing it to move from the position shown in Fig. 6 to the opposite limit of its throw. I'Vhen this happens, the rockers 77 and 63 will be oscillated, so that the gear will be moved out of mesh with the gear 76, and so that the gear 61 will fall in mesh with the gear 60. This action changes the drive from the rollers 90 and 91 to the roller 37, so that at this time the master sheet 35 will commence to move in front of its tracker 12.

It will be noted in passing, that the stopping of the rollers 90 and 91 will leave the master card between said rollers dormant with a blanksurface thereof'in front of the bearing points of the pin bars 98, so that the stops 101 associated therewith will be closed.

The master sheet 35 will first bring a perforation 38 in register with an associated so, that the pneumatic actuator embodying the pneumatic control 51 and the bellows motor 52, will be actuated against the tension of the spring to depress the lever 5 1, so as to rotate the platen 47 by engagement with the line-space mechanism 55. This latter action is repeated, as will be seen by reference to Fig. 11, a number of times, say four, so that the envelop on the platen which has been already written on, will be forced out into the discharge chute 58, and also that the new envelop will be brought around to the printing point. At the same time, however, that the rocker 77 was raised at its gear-bearing end to enable the shift of control from the tracker 13 to the tracker 12, the end of the lever 113'carrying the ad justable screw 112 was raised by the rocker 77, so that the opposite end was depressed, bringing the spring-pressed pawl 114: into engagement with the projection 115 on the valve 116. This action opens the valve 116, so as to admit air into the aperture 117. As soon as the valve 116 opened, the detent 119 caught it in its open position, as shown in Fig. 7, and held it open for the time being. The opening of the aperture 117 admitted air to the primary pneumatic 120 of the pneumatic control 121, so that the pneumatic bellows motor 122 associated therewith and controlled therebv collapsed, so that the shaft 124 was rocked until the-arms 126 forced the shifters 127 from the position shown in Fig. 2 to the position shown in Fig. 1, wherebv these shifters forced the racks 129 in engagement with the constantly rotating gears 131.

The shifters 127 in moving to the position indicated in Fig. 1. are immediately locked by the latches 1 12, engaging with their notches 143 the pins 147. As soon as racks 129 are brought in mesh with the constantly rotating gears 131, they start to move down wardly, carrying with them the card substitutor 130. This card substitutor engages by means of the overhang 135 the top edge of the foremost card 89 in the pack, so that this card moves down with it into the passage the geidefil a the earclsubstituter mo downwardly, one of the levers 150 comes in engagement with the foot cam 151 and trips the detent 119, so as to permit the closing of the valve 116. lhe racks 129, however, will not disengage from the gears 131, even though the arms 126 are moved out of engagement with the shifters 127 by the expanding of the bellows motor 122, as the latches 142 still lock the shifters 127 in engagement with the racks 129. The downward movement of the card substitutor 130 also causes the lever 156 to rock, bringing its cam foot 157 against the bearing roller 158, so as to rock the supporting levers 159 to a position such that they carry the roller 90 away from the roller 91, admitting the passage of the card which is being forced down to a position between the rollers, whereby when the rollers subsequently come together, they may readily grasp the same and feed it past. the bearing pin bars 98. It will be noted thatv the downward movement of this new card acts to force the card previously in position beyond the bearing points of the pin bars 98, and out at the bottom of the guide 97, said new card itself moving into a position in front of the points of the pin bars 98, so that the blank or solid surface thereof will prevent the movement of the pin bars 98 to uncover the apertures in the tracker 13.

As soon as the card substitutor has accurately placed the new card in position between the rollers 90 and 91, and in front of the pin bars 98, then the pins v145 on the rack bars 129 will come in engagement with the latches 14-2, so as to shift them against the tension of the springs 1 16, into the position shown in Fig. 2, whereby the springs 14:6 will also tend to draw the shifters 127 into the position shown in Fig. 2, permitting the rack bars 129 to come out of mesh with the gears 131. This action, moreover, is aided by the springs 151 tending to return the card substitutor 130 by pushing upward. from the short arms 148 of the bell crank levers, of which the rack bars 129 form the other arms. The springs 151 will then be free to move the card substitutor 130 upwardly to its original position, so that the overhang ledge 135 thereof will project against the new foremost card 89 in the pack, which has been pushed forward to a position contacting with the card substitutor130, by the spring-pressed back plate 166. While the card substitutor was moving upward, the cam toe 157 was moving downward to a position clear from the roller 158, so that the springs 160 were free to move the feeding roller 90 toward the roller 91 to grip the card between them. In the meantime, the master sheet 35 will have presented one of the apertures 59 to a corresponding aperture in the tracker 12, so that air is admitted to. e. prim ry pneum ti f the pneumatic actuator 85, causing the plunger 81 to shoot forward andadjust the shifter 78 to the position indicated in Fig. 6, whereby the gear 61 may be brought out of mesh with the gear 60, silencing the control from the master sheet 35, and further whereby the gear will be dropped into mesh with the gear 76, causing the drive of the rollers 90 and 91 to feed the new card down past the bearing pin bars 98. This change also permits the spring 162 to draw the lever 113 to its starting position, the pawl 11% automatically snapping by the projection 115 of the valve 116. As the new master card moves down past the pin bars 98 when any of the apertures therein come in alinement with the bearing points of the pin bars, these pin bars shoot forward the distance of the thickness of the card, under the propulsion of the springs 100, so that the stops 101 are moved bodily away from the apertures in the tracker 13, thereby admitting air to the associated primary pneumatics of the pneumatic actuators. This enables these pneumatic actuators to operate the mechanism connected thereto for operating the various parts of the typewriter 1, such as the hammers 3, which strike the keys 2. This action will correspond to the operation of the typewriter keys and the platen of the typewriter, so that the fresh envelop thereon will receive a new address distinct from the address placed 011 the previous envelop by the previous card. We thus have a concomitant change of master card and envelop ateach distinct action of the typewriter operator, the used card and envelop being removed, and their places taken by a fresh card and a fresh envelop. The action is continuous, being carried on automatically by the machine so long as there are cards and envelops in the holders therefor.

In the modified form shown in Fig. 13, in place of the pneumatic actuator for the card substitutor being controlled by the action of the shifter 78, there is provided in the supplementary tracker 92, an aperture which is connected by the pipe 175 with the primary pneumatic of the pneumatic control 121, so that the starting of the card substitutor in action may be controlled by a perforation provided in each master card, coming in register with this aperture, to admit air into the primary pneumatic.

The incitation of the pneumatic actuator for the card substitutor 130 in this form, can also be accomplished manuallv by opening the valve 176 to admit air to the primary pneumatic of the pneumatic control 121.

Variations may be resorted to within the scope of the invention, and portions of the improvements may be used without others.

Having thus described my invention, I claim:

1. The combination with a pneumatic typewriter operating mechanism, of a series of individual master cards for successively controlling the action of said mech anism, and pneumatically-operated means for replacing a card by another card, after the first card has finished its control.

The combination with a typewriter operating mechanism, of a pneumatic control for said mechanism, a series of independent cards for successively determining the passage of air through said control, and a card substitutor for replacing each card after it has finished its action, with a fresh card, each of said cards having an aperture therein for actuating said substitutor to substitute a new card for the card in action.

3. The combination with an actuating mechanism, of a tracker connected to said actuating mechanism and having a series of apertures therein, stops slidingly mounted so as to come directly against said tracker to accurately close said apertures, a perforated master member for determining the open and closed position of said stops, and pin bars engaging with said master member and connected to said stops.

i. The combination with actuating mechanism, of a tracker connected to said actuating mechanism and having a series of apertures therein, stops for closing said apertures, guiding means for directing the movement of said stops in a line perpendicular to the face of said tracker, so that said apertures will be positively and completely opened or closed, and means controllable by perforated master members for determining the open and closed positions of said stops.

The combination with pneumatic typewriter actuating mechanism, of a tracker connected to said actuating mechanism and having apertures therein, a series of stops individual to said apertures for closing the same, levers individual to said stops, springs acting on said levers so as to tend to move said stops to their position uncovering said apertures, pin bars connected to said levers, and a perforated card obstructing the movement of said pin bars at the solid portions thereof and admitting of the movement of said pin bars when the perforations therein come in register with the points on said pin bars.

6. The combination with pneumatic typewriter actuating mechanism, of a controlling tracker connected to said mechanism and having a series of apertures therein, stops for closing said apertures mounted so as to have a direct rectilinear movement toward and from said apertures, spring means tending to move said stops to their open position, and a master member for admitting of the movement of said stops to an open position, and for moving said stops to their closed position.

7. The combination with a typewriter adapted to write on work members such as envelops, of pneumatic actuating mechanism for said typewriter, pneumatic actuator means for feeding envelops to said typewriter, master card controlled means for determining the action of said actuating mech-- anism, and pneumatically actuated means for determining the supply of master cards to said controlled means.

8. The combination with actuating mechanism, of a series of master cards for controlling said actuatingmechanism, a tracker controlling the operation of said mechanism,

a card substitutor for supplying new cards in place of cards which have effected their control, driving connections for advancing said substitutor, and a pneumatic actuator for controlling the operative connection of said driving connections.

11. The combination with an actuating mechanism, of a series of master cards for controlling the action of said mechanism, a card substitutor for replacing one card with another card, said substitutor having an overhanging ledge extending at right angles to the direction of travel of said substitutor and adapted to engage the edge of each card individually, and justifying means for forcing said card substitutor to move steadily in a rectilinear line.

12. The combination with an actuating mechanism, of a series of cards for controlling the operation of said actuating mech anism, a card substitutor for replacing one card with another, a pair of stationary racks, and a pair of connected gears engaging said racks and movably secured on said card substitutor so as to justify the movement of said card substitutor.

13. In a typewriter operator, the combination with actuating mechanism controllable by a series of individual master cards, means for advancing said cards one by one, means for holding said cards in a pack comprising a back plate, arms connected to said back plate, springs for forcing said arms so as to hold said back plate at all times snugly against said cards, for holding said cards in a pack against said advancing means, rollers (in said back plate,

ner card, and

and tracks engaging said rollers to guide the movement of said back plate.

1%. In a typewriter operator, the combination with actuating mechanism controllable by a series of separate and individual master cards, of a slide having means thereon for engaging a'single card to move it into an operative position, guide rollers connected to said slide for guiding the movement ofsaid slide, a pair of stationary racks, a pair of gears rotatably mounted on said slide and rigidly connected together and meshingwith said racks to justify the movement of said slide, and means for raising and lowering said slide.

15. In a controlling means for typewriter operators including a series of individual master cards, the combination of a slide having means thereon for engaging a card to shift it from one position to another, a rack pivotally connected to said slide, a driven gear arranged apposite to said rack, and a shifter for forcing said rack into mesh with said gear.

16. In a controlling means for typewriter operators including a series of individual master cards, the combination of a slide having means thereon for engaging a card to shift it from one position to another,a rack pivotally connected to said slide, a driven gear arranged apposite to said rack, shifter for forcing said rack into mesh with said gear, and an actuator for operating said shifter. y

17. In a controlling means for typewriter operators including a series of individual master cards, the combination of a slide having means thereon for engaging a card to shift it from one position to another, a rack pivotally connected to said slide, a driven gear arranged apposite to said rack, a shifter for forcing said rack into mesh with said gear, and a pneumatic actuator for manipulating said shifter.

18. In a controlling means for typewriter operators including a series of individual master cards, the combination of a slide having means thereon for engaging a card to shift it from one position to another, a rack pivota'lly connected to said slide, a driven gear arranged apposite to said rack, a shifter for forcing said rackinto mesh with said gear, a pneumatic actuator for manipulating said shifter, comprising a pneumatic motor, a pneumatic control for said motor including primary and secondary pneumatics, a valve connected to said primary pneumatic to control the admission of air to said primary pneumatic, and a finger key for enabling the manual actuation of said valve.

19. In a controlling means for typewriter to shift it from one position to another, a rack pivotally connected to said slide, a driven gear arranged apposite to said rack, a shifter for forcing said rack into mesh with said gear, a pneumatic actuator for manipulating said shifter, comprising a pneumatic motor, a pneumatic control for said motor including primary and secondary pneumatics, a valve connected to said primary pneumatic to control the admission of air to said primary pneumatic, and locking means for holding said valve in its open position.

20. In a controlling means for typewriter operators including a series of individual master cards, the combination of a slide having means thereon for engaging a card to shift it from one position to another, a rack pivotally connected to said slide, a driven gear arranged apposite to said rack, a. shifter for forcing said rack into mesh with said gear, a pneumatic actuator for manipulating said shifter, comprising a pneumatic motor, a pneumatic control for said motor including primary and secondarv pneumatics, a valve connected to said primary pneumatic to control the admission of air to said primary pneumatic, locking means for holding said Valve in its open position, and means operated by the movement of said slide for releasing said locking means.

21. In a controlling means for typewriter operators including a series of individual mast-er cards, the combination of a slide having means thereon for engaging a card to shift it from one position to another, a rack pivotally connected to said slide, a driven gear arranged apposite to said rack, a shifter for forcing said rack into mesh with said gear, a pneumatic actuator for manipulating said shifter, comprising a pneumatic motor, a pneumatic control for said motor including primary and secondary pneumatics, a valve connected to said primary pneumatic to control the admission of air to said primary pneumatic, locking means for holding said valve in its open position, means operated by he movement of said slide for releasing said locking means, and means for enabling the disconnection of Said rack when said lrcking means is released.

22. In a controlling means for a typewriter operator including a series of inclividual master cards, the combination of a slide having means to engage a card to move it from one position to another, a rack pivotally mounted on said slide, a driven gear intermeshable with said rack, a shifter for forcing said rack into mesh with said gear, and a latch for securing said shifter in a position corresponding to the engagement of said rack with said gear.

23. In a controlling means for a typewriter operator including a series of individual master cards, the combination of a. slide having means to engage a card to move it from one position to another, a rack pivotally mounted on said slide, a driven gear intermeshable with said rack, a shifter for forcing said rack into mesh with said gear, a latch for securing said shifter in a 'position corresponding to the engagement of said rack with said gear, and means movingwith said slide to disengage said latch after a predetermined movement of said slide.

24's. In a controlling means for a type writer operator including a series of individual master cards, the combination of a slide having means to engage a card to move it from one position to another, a rack pivotally mounted on said slide, a driven gear intermeshable with said rack, a shifter for forcing said rack into mesh with said gear, a latch for securing said shifter in a position corresponding to the engagement of said rack with said gear, and a pin carried by said rack for disengaging said latch to enable the disconnection of said rack from said gear.

25. In a controlling means for a typewriter operator including a series of individual master cards, the combination of a slide having means to engage a card to move it from one position to another, a rack pivotally mounted on said slide, a dri en gear intermeshable with said rack, a shifter for forcing said rack into mesh with said gear, a latch for securing said shifter in a position corresponding to the engagement of said rack with said gear, means mo ing with said slide to disengage said latch after a predetermined movement of said slide, and spring means for returning said slide.

26. In controlling means for a typewriter operator inc uding a series of individual master cards, the combination of a slide having means to engage one of said cards to shift it from one position to another, a rack connected to said slide, a driven gear arranged in juxtaposition to said rack. a shifter fo bringing about the meshing of sa d rack with said gear. a lever connected to said rack. and a spring connected to said lever tending to retu n said slide.

27. In c ntrolling means for a typewriter operator including a series of individual master cards. the combination of a slide having means to engage one of said cards to shift it from One position to another, a rack connected to said slide, a driven gear arranged in juxtaposition to said rack, a shifter for bringing about the meshing of said rack with said gear, a lever connected to said rack, a spring connected to said lever tending to turn said slide, a pneumatic actuator for operating said shifter, a valve for controlling the incitation of said pneumatic actuator, a detent for holding said valve open to maintain said pneumatic actuatorin play, and means in the path of said lever operable by said lever to release said detent to admit of the closing of said valve so as to throw said pneumatic actuator out of operation.

28. In a controlling means for a typewriter operator including a series of inclividual master cards, the combination with a card advancing means, of traversing; mechanism for said card advancing means, starting means for said traversing mechanism, detent means for maintaining said starting means in action, and means for releasing said detent means after a predetermined travel of said card advancing means.

29. In a controlling means for a typewriter operator including a series of individual master cards, the combination with a card advancing means, of traversing mechanism for said card advancing means, starting means for said traversing mechanism, detent means for maintaining said starting means in action, means for releasing said detent means after a predetermined travel of said card advancing means, and means for maintaining said traversing mechanism in action after said starting means has been rendered inactive.

30. In a controlling means for a typewriter operator including a series of individual master cards, the combination with a card advancing means, of traversing mechanism for said card advancing means, starting means for said traversing mechanism, detent means for maintaining said starting means in action, means for releasing said detent means after a predetermined travel of said card advancing means, means for maintaining said traversing mechanism in action after said starting means has been rendered inactive, and means for releasing said last-mentioned means after a predetermined travel of said card advancing means.

31. In a controlling means for a typewriter operator including a series of individual master cards, the combination with a card advancing means, of traversing mechanism for said card advancing means, startmg means for said traversing mechanism, detent means for maintaining said starting means in action. means for releasing said detent means after a predetermined travel of said card advancing means, means for maintaining said traversing mechanism in action after said starting means has been rendered inactive, means for releasing said last-mentioned means after a predetermined travel of said card advancing means, and means for returning said card advancing means.

32(The combination with a typewriter operating mechanism, of a master sheet for controlling the action of certain parts of said mechanism, a series of individual master cards for controlling the action of certain other parts, feeding means for said master sheet, feeding means for said master cards, gearing for drivingeach of said feeding means, mechanism for shifting said gearing so as to drive said feeding means alternately, whereby the control will be alternately under the supervision of said master sheet and said card, and means for substituting a new card to said card feeding means while said master sheet is in action.

33. The combination with typewriter actuating mechanism, of a series of separate and individual perforated master cards for controlling the operation of said actuatingmechanism, means for manipulating said cards, including a card substitutor having a projecting ledge for engagement individually with said cards, plurality of racks pivotally mounted on said substitutor, a plurality of gears arranged in juxtaposition to said racks, a pneumatic actuator, and means operated by said pneumatic actuator to concomitantly shift all of said racks into engagement with said gears, so as to change the position of said substitutor.

34:. The combination with typewriter actuating mechanism, of a series of master cards for controlling said actuating mechanism, a card substitutor for shifting said cards individually to an active position, a pair of racks ar'anged in juxtaposition to said substitutor, a pair of gears mounted to rotate in unison on said substitutor, and meshing with said racks, so as to rectify the 'movement of said substitutor, racks connected to said substitutor, and rotating gears i'or meshing with said last-mentioned racks to slide said substitutor from one position to another.

35. The combination, with typewriter-actuating mechanism; of a plurality of separate master members for individually controlling the operation of said actuating mechanism to afford typewriting of matter; mechanism for feeding said master members one after another; and means for variably controlling the period of action oi said feeding mechanism on each successive master member to correspond with the length or volume of the typewritten matter written under the control of that master member.

36. The combination with a typewriter having a platen, 01"- a typewriter operator controlling certain of said actuators to rotate said platen, to bring a single envelop to the printing point of said typewriter and controlling certain others of said actuators to bring a single card from said pack of master cards into position to govern the typewriting on said single envelop.

37. The combination with a typewriter having a platen, of a typewriter operator having means for supporting envelops in a pack, actuators for operating the parts of said typewriter to write on said envelops, means for supporting a pack of master cards prepared to control the incitation to action of said actuators, and means for concomitantly supplying a new envelop to said platen, said means rotating said platen to position said envelop thereon and bringing a fresh master card from said pack of master cards in position to control the typewriting by said typewriter on said new envelop.

38 The combination with a typewriter, of a typewriter operator arranged to actuate parts of said typewriter so as to write on a work member positioned on said typewriter, a series of individual master cards for controlling said typewriter operator to give different inscriptions on different work members, said typewriter operator having means controlled by said master cards to control the movements of said work members, and means for substituting one master card for another when one work member is substituted for another work member.

39. The combination with actuating mech anism, of a series of master cards for controlling said actuating mechanism, feeding means for said cards, substituting means for replacing one card in action with another, and a variable controlling mechanism for said feeding means brought into play just as the card has finished its last controlling action of said actuating mechanism.

40. The combination with actuating mechanism, of a series of master ards controlling said actuating mechanism, feeding means for said cards, and means for varying the period of feeding to correspond with the period of control of the particular card dominating the actuating mechanism at any time.

41. The combination with actuating mech anism, of a series of cards for controlling the operation of said actuating mechanism, a card-substitutor for supplying new cards in the place of others which have effected their control, and controlling mechanism actuable at variable instants to cause said card-substitutor to replace the card in action with another, to correspond with the capacity of control of the card in action.

42. The combination with actuating mechanism, of a series of cards for controlling said actuating mechanism, and intermittently-acting feeding means for said cards, the period of action of said feeding means varying automatically with the different periods of control of the different cards.

The combination with actuating mechanism, of a series of cards for controlling the operation of said actuating mechanism, arranged in a horizontal stack, advancing means for said cards having an overhang arranged to engage the top edge of the foremost card in the stack, and automatic mechanism for maintaining the foremost card beneath said overhang when said advancing means is in its starting position.

44:. The combination with actuating mechanism of a series of master cards for controlling said actuating mechanism, feeding means for said master cards, substituting means for replacing one master card with another, and controlling means variable as to the instant of its action, for alternating the movement of said cards by said feeding means and said substituting means.

In a controlling means for a type writer operator including a series of individual master cards, the combination with a slide having means to engage a card to move it from one position to another, a rack pivotally mounted on said slide, a driven gear intermeshable with said rack, a shifter for forcing said rack into mesh with said gear, a latch for securing said shifter in a position corresponding to the engagement of said rack with said gear, and means for disengaging said latch to permit the disengagement of said rack from said gear.

4-6. The combination with actuating mechanism, of a series of cards for controlling said actuating mechanism, a card-substitutor for replacing one card in control with another, power means for driving said cardsubstitutor in one direction, and spring means for returning said card-substitutor after an actuation by said power means.

L7. In a controlling means for a typewriter operator including a series of inclividual master cards, the combination with card-advancing means, of card-feeding mechanism, and means operated by said card-advancing means for manipulating said card-feeding mechanism to a receptive condition to receive the card forwarded by said card-advancing means into the sphere of its action.

48. The combination with actuating mechanism, of a series of separate detached cards for controlling the action of said actuating mechanism, a card-substitutor for replacing one card in control bv another, and an air valve for controlling the action of said cardsubstitutor.

49. The combination with actuating mech anism, of a series of separate detached cards for controlling the action of said actuating mechanism, a card-substitutor for replacing one card in control by another, an air valve for controlling the action of said card-substitutor, and means for catching and holding said air valve in its open position.

50. The combination with actuating mechanism, of a series of separate detached cards for controlling the action of said actuating mechanism, a card-substitutor for replacing one card in control by another, an valve for controlling the action of said card-substitutor, means for catching and holding said air valve in its open position, and releasing means for said last-mentioned means. 7

7 bars.

52. The combination with a pneumatic typewriter actuating mechanism, of a tracker connected to said actuating mechanism and having apertures therein, a series of stops individual to said apertures for controlling the passage of air therethrough, a series of levers pivoted intermediate their ends, there being one of said levers individual to each of said stops and arranged to adjust the same, a spring connected to each of said levers at the far side of the pivot thereof from the corresponding stop, a series of pin bars, one pivotally connected to each of said levers at a point intermediate the pivot of said lever and its associated stop, and a master member for controlling the back and forth movements of said pin bars and thus of said stops.

58. The combination with a pneumatic actuating mechanism, of a tracker connected to said actuating mechanism and having apertures therein, .a series of stops individual tosaid apertures for controlling the passage of air therethrough, guiding means for said stops constraining said stops to move in a rectilinear line toward and from said tracker, so as to fully open or close said .apertures, a lever connected to actuate each of said stops, said levers being pivotally mounted intermediate their ends, a spring individual to each of said levers for actuating the same in one direction, a pin bar pivotally connected to each of said levers foractuating said lever against the tension of said spring, a master member for controlling the movements of said'pin bars, and guiding means for constraining the movements of said pin bars alonga rectilinear line.-

54. The combination with a typewriter including a platen arranged to support a work-mei'nber, of actuating mechanism for said typewriter, special platen-rotating means for said platen, a work-member feeder for supplying fresh work-members to said platen, a series of individual master members arranged tocontrol said actuating mechanism separately to cause the printing of different inscriptions on different workmembers supplied to said platen, and a distinct master member operating intermediate the operations of said individual master members and having solely three different kinds of perforations, one to control the operation of said work-member feeder, another to control the operation of said platenrotating means, and the third to control the shift of control to individuals of said firstmentioned master members.

55. The combination with a typewriter, of accessories for supplying fresh workmembcrs to said typewriter, automatic actuating mechanism for operating said typewriter and said accessories, a series of individual master members for controlling said actuating mechanism to write different matter on different work-members as supplied to said typewriter, a repeat mastermember for controlling said actuating mechanism intermediate the controls thereof by said individualmaster members, only one of said, individual master members being in action at a time, and substituting mechanism for bringing into play fresh individual master members during thecontrol of said actuating mechanism by said repeat master member.

56. The combination with a typewriter, of actuatingmechanism for said typewriter, controlling mechanism for said actuating mechanism, a series of individual master members for governing said controlling mechanism, feeding mechanism for moving each master member past said controlling mechanism while said master member is in supreme control, and master-member-substituting mechanism for moving each master member past said controlling mechanism when said master member is dormant as-to said controlling mechanism.

57. The combination with a typewriter, of actuating mechanism for said typewriter, controlling mechanism for said actuating mechanism, a series of individual master members for governing said controlling mechanism, two difierent feeding mecha-' nisms for passing master members by said controlling mechanism, and means for alternating the actions of said feeding mechanisms so that the one will be silent while the other is active.

58. The combination with a typewriter, of actuating mechanism for said typewriter,

controlling mechanism for said actuating

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