US1730512A - Rack-bar-driving mechanism of printing tabulators - Google Patents

Description

Oct. 8, 1929. w w, LASKER 1,730,512

RACK BAR DRIVING MECHANISM OF PRINTINGTABULATOR$ Original Filed March 28. 1917 4 Sheets-Sheet l -Witne5pep; Q Invefitar: Vl illz'am Wlashv;

Oct-8, 1929. w. w. LASKER RACK BAR DRIVING MECHANISM OF PRINTING- TABULATORS Original Filed March 28; 1917 4 Sheets-Sheet QQN .. nmw Eon vQm Inventor.-

Oct. 8, 1929. w. w. LASKER RACK BAR DRIVING MECHANISM OF PRINTING TABULATORS Original Filed March 28, 1

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1929- w. w. LASKER 1,730,512

RACK BAR DRIVING MECHANISM OF PRINTING TABULATORS Original Filed March 28, 19 4 Sheets-Sheet 4 17412165565: hven for:

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Patented Oct. 8, 1929 UNITED STATES PATENT OFFICE WILLIAM W. LASKER, OF BROOKLYN, NEW YORK, ASSIGNOR, BY MESNE ASSIGNMENTS, TO REMINGTON RAND INC., OF NEW YORK, N. Y., A CORPORATION OF DELAWARE RACK-BAR-DRIVING MECHANISM OF PRINTING TABULATOR-S Original appli cation filed March 28, 1917, Serial mi.

. This invention relates to a'printing tabulator of the kind adapted to be controlled by perforated cards, and relates more particularly to matter divided from my copendi'ng application Serial No. 158,142 filed March 28, 1917, for printing tabulators.

The invention herein described relates more particularly to the rack bars and positive driving means therefonwhich actuate and position the segments carrying the type of saidprinting tabulator; and, therefore, only as much of the printing tabulator is described herein as is necessary to show the connection between the matter of the original application and the matter claimed herein.

\Vhile herein and in said applicatlon minute details of one of many possible embodiments of the inventionare described, the invention is not limited to these since various changes may be made in the details of construction and combination without departing from the spirit and 'scope of the invention as claimed.

One object of the invention is to improve generally apparatus of this kind.

Another object of this invention is to devise a printing tabulator actuated by perforated cards in which the printing elements and the Ltabulating elements are positively driven.

Another object of the present improvement is to construct a printing tabulator, the driving means of which comprises reciprocating rack bars that actuate the tabulating and printing elements. I

A still further object of the present 1mprovement is to construct a printing tabulator ha ving type segments, accumulating elements associated with the type segments, rack bars for driving the type segments, driving means for the rack bars, and means for lockand calculating machine constituting a part of the printing tabulator.

158,142. Divided and this application filed April 3, Serial No. 226,495.

ing the driving means at the end of its forward movement.

Fig. 5 is a fragmental side elevation partly in section of one of the reciprocating bars for actuating the type setting segments showing it in its retracted movement.

The invention herein relates to a printing tabulator which is adapted to be actuated by perforated cards, which in their passage through the machine operate elements for setting up type commensurate with the designations on the card and actuate an accumulating mechanism for accumulating therein the data recorded on the card perforations whereby the total accumulated data may be computed and then printed by the printing elements of the machine.

The embodiment illustrated in said :0- pending application comprises a main frame, the card feeding mechanism, the card analyzing mechanism, and an upper base 10, on which the accumulating and printing mechanism 12 hereinafter to be described and the paper carriage 13 are mounted. The cards to be analyzed are disposed in a receptacle and are fed to the analyzing mecha nism in which, as shown in said co-pending application, analyzing pins which find perforations in the cards being analyzed pass upwardly therethrough and engage extension pins, which in turn actuate registering stops 14. After the cards have been analyzed they are discharged into a suitable receptacle.

The first step in the operation of the type setting and tabulating mechanism, consists in the pushing up of the various stop pins 14 by means of the extension pins which are actu-' ated by the various perforations in the cards as they pass through the machine. A specific description of the stop pins, their supporting means, and the means for returning them to normal position after they have set in motion various other parts of the type setting and tabulating mechanism is given in said copending application.

The registering stops 14 correspond in number to the extension pins except that there are no extension pins or registeringstops 14 to correspond with the analyzing pins that analyze the Zero perforations in the cards. Each rowof registering stops 14 has a zero stop 16 associated therewith, which is nor-' mally in zero stoppin position and Williemain so unless one 0% the-registering stops 1 to 9 inclusive associated therewith is actuated and therefore it is unnecessary for a zero analyzing pin to actuate or cooperate with a zero stop 16. r

Herein the part of the accounting machine to the left of Fig. 3 will be considered-the forward part of the machine, while that to the right of Fig. 3 will be considered the rear of the accounting machine. The registering stops 14 in the present instance are arranged in asuitable number of rows having ten stops in each row, the stops of each row corresponding to the integers 9 to 1 inclu'siveand zero, the stop 9 being at the forward endof the machine and the zero stop at the rear end thereof. The stops 14 corresponding to the integers 1 to 9 inclusive are each com osed of a flat body portion comprising a iiead having a forwardly projecting portion 17, a cam face 18 facing forward directly above said projection 17, a small rectangular shaped abutment 19 on one side of the pin and adjacent to its upper end, an elongated body portion 20, and a lower restoring notch 21 on the rear edge thereof. The s'tops 14 have their projections .17 normally resting on an upper stop plate 22 and extend down through a lower stop plate 23. The stop plates 22 and 23 have openings therein eorresponding'in number to the stops 14 and zero stop 16 in registry with each -otherwhereby the pins may reciprocate through them.

' The stop plates 22 and 23 are indirectly supported on the cheek plates 34.

The zero stops 16 are formed somewhat similar to the stops 14 and have a forward projection 36 at their upper end and a cam face 37 on the forward edge extending upward from the extension 36 and a recess 39 in its rear edge.

Means is provided=for anchoring the various registering stops 14 that are actuated by theextension pins and also holding the zero stops 16 in'position for causing an actuation of the corresponding type setting and tabulating elements. This anchoring means .is

fully shown and described in said co-pending application and is not claimed herein,

The zero stops 16 are normally disposed in raised position and Whenever a stop 14 is actuatedto the raised position by means of the plungers, simultaneouslytherewith the zero stop 16in that row will be lowered. In

.levers 62 are pivoted on a suitable shaft which is supported within the cheek plates 34 0f the machine. The rear ends ofthe levers 62 are provided with lugs 66 which are slidably and pivotal'ly mounted in slots 67 at the rear ends of the links 68, which links are pivoted on a shaft 69 supported by the cheek plates 34. The front ends of the links 68 are provided with lugs 70 which are arranged to slide within a recess 39 formed in the rear ed e of the naught stop 16.

bupported by the cheek plates 34 is a-comb 'plate 71 the upper end of which is slotted to permit the lever 62 to extend therethrough and be guided thereby. A coil spring 71 is stretched between the abutment 66 and the lower edge of the said plate 71 for the purpose of normally raising the naught stops 16 into the position shown inFig. 3. Attention iscalled to the fact that when one of the stops 14 is raised, the actuation of the lever 62 by means of the cooperation of the slot 21, carried by the stop, with the lug 63, carried by the lever, will cause the link 68 to be actu ated which will in turn lower the stop'16 of the row in which the stop pin 14 has been raised.

As has been heretofore described the first action that takes place when the machine is started, is the raising of the various stop pins 14 by the actuation of the extension pins which are in turn controlled by the perfora-- turning the pins 14 to-their normal lower position for actuation by the next incoming card. This means for returning the stop pins to their normal position is described in detail in said co-pending. application.

Alever 72 is provided having a bifurcated lower end 73 which straddles the main drive shaft 74 which provides the driving means, for the entire type setting and calculating mechanism. This lever 72 is provide-d with a pin 7 4* upon which is rotatably mounted a roller 75 which is arranged to roll within a cam slot 76 ofa cam 77.

There is provided and described in said co-pendin application though not shown or.elaime herein, a means operatively connected with said lever72 whereby the stops 14 which have been set by the perforated cards, are released by the aforementioned anchoring means after they have performed their functions.

As soon as the pins 14 are freed, the lever 62 will be pulled down by means of the coil spring 71, and in its downward movement the lugs 63 carried thereby will engage the slots 21 of the stop pins 14 and pull them downward totheir normal lowered position.

The naught stop ins 16 are arranged to normally retain or field back reciprocating rack bars, which during their reciprocation actuate type setting elements. As heretofore described, the raising of a stop pin will lower the naught stop so that upon the actuation of a stop pin, the reciprocating rack bar associated therewith will be released and be permitted to run forward until it engages a raised stop pin 14. During their reciprocation the reciprocating members have actu-- ated the type setting elements and upon being stopped by the raised stop pins will hold the type setting elements in a position to set type corresponding with the number of the raised stop pins. A detailed description of the reciprocating rack bars and their connection and cooperation with the naught stops, stop pins and type setting elements. will now be described.

The reciprocating rack bars each comprise a relatively thin bar shaped body portion 82 which is provided with a longitudinal slot 83 that is adapted to slide along a transverse bar 84, secured to the cheek plates 34. A transverse bar 85 is also provided which serves as a-support for the forward end of the bar 82. The bar 85 is rigidly fastened to the cheek plates 34. A second relatively thin bar shaped member 86 is pivoted at its front end to a pivot 87 carried by the front end of the bar 82. The upper edge of the bar 86 is provided with a recess 88 to receive a bar 89 which is reciprocated by means hereinafter to be described, and during its reciprocation will move both the bar 82 and the bar 86 connected thereto. The bar 86 is provided with a cut away portion 90 so as to lessen the depth of the said bar to enable it to slide above the shaft 84 and at the same time permit the outer ends of the bars 82 and 86 to remain parallel with each other. A spring 91 is stretched between the free end of the bar 86 and a vertically extending arm 92 which is made integral with the inner end of the bar 82.

The free end of the bar 86 is provided with an off-set portion 93 (Fig. 5) which is adapted to extend through a slot 94 in the upper edge of the bar 82 so that the extreme end 95 of the bar 86 may engage the bar 82 on its opposite side. Due to this arrangement the two bars 82 and 86 are always held together and as the bar 86 swings on its pivot 87 the end 95 of the bar 86 will engage and slide up and down against the vertically extending arm 92 carried by the bar 82. A horizontally extending pin 96 is carried by one side. face of the bar 82 which is adjacent to the bar 86 and pivotally mounted upon which is a bell crank lever 97, the outer end of which is provided with a horizontally extending pin 98 which is reciprocatively movable in a slot 99 made in the bar 86. The

other end of the lever 97 is provided with a lug 100 having a cam front face 101 and a right angular notch 102, (Fig. 4), in its rear edge, the horizontal wall of which is extended out at right angles to the lever 97 forming a rest 103 (Fig. 3). The upper edge of the bar 82 is provided with an upstanding abutment 104 having a vertical front wall 105 and an inclined or cam rear wall 106, the purpose of which inclined wall will be hereinafter set forth. The bottom edge of the bar 82 is provided with an abutment 104 similar but smaller than the abutment 104 carried by its upper edge. This abutment 104 is provided with a vertical front wall 105 directly beneath and in the same plane with the vertical wall 105 of the abutment 104. The abutment 104 is also provided with an inclined or cam rear wall 106 the purpose of which will be hereinafter set forth.

The bar 89 which as heretobefore described, is for the purpose of reciprocating the bars 82 and 86, is itself reciprocated in the following manner, reference especially being made to Fig. 2.

The bar 89 which is rectangular in cross section is rigidly connected at each end to a slide 107, which is reciprocatable between rollers 108 forming guideways therefor. A slot I09 is made in each cheek plate 34 and receives a roller 110 revolubly mounted on the shaft 111 secured to the rear endsof the said slides 107. The front ends of the slides 107 are provided with horizontally extending pins 112, which are reciprocatably mounted in slots 113 formed in the upper ends of levers 114, the lower portions of which are triangularly shaped, one corner of each portion being pivoted to a stud shaft 115 carried by each cheek plate 34. The other corners of the triangular shaped levers 114 carry rollers 116 which are arranged to roll within cam grooves 117 made in the cams 118 (Fig. 2).

Returning now to the reciprocating bars 82, the top edges of the forward portions of the said bars 82 are provided with gear teeth 119 which are in mesh with gears 120 (Fig. 3) secured to type segments 121, which have bearing on a transverse shaft 122 carried between the cheek plates 34, which segments have are shaped rear edges provided with gear teeth 123 which will hereafter be described. The front edges of the segments 121 are also made are shaped and are provided with rectangular notches to receive the upturned ends of type 126. The rear ends of the type are also provided with upstanding portions 127 arranged to fit within rectangular openings radially back of said rectangular notches. A flat arch shaped plate 128 is p 1, the next 2 arranged to fit against the type 126 and to hold their upturned portions .in engagement with said notches and openingsrespectively. The plates 128 are secured to the segments by means of bolts 129. Reading from the upper edge of the type carrying portion of the segment, the type carried thereby read in sequence, the first type being zero, the next etc., the last type on the segment being numbered 9.

A description of the operation of the stop pins, the reciprocating rack bars and the oscillating type segments will now be given. In the position shown in Fi 5 all the parts are at rest, and in 3 all of the stop pins 14 are down and all of the naught stops 16 are in raised position. Whenthe stop pins 16 are in their raised position, the vertical walls 105' of the abutments 104 fit within the segments in a position to notches 38 in the upper ends of the naught stops, and consequently hold the bars 82 and their associated bars 86 in their extreme rearward position, and also retain all of the type print ciphers. Although each spring 91 is exerting tension to lift its bar 86 nevertheless this bar is held to the limit of its downwardmovement due to the fact that the rest 103'carried by one end of the bell crank lever 97 will rest on top of the naught stop 16 which holds the said bell crank 97 at the limit of its downward movement by means of the pin 98 carried by the member 82' and the slot 99 in the bar 86. As soon as any of the stop pins 14 are raised by means of said pin extensions, actuated when a card passes through the machine, the naught stop in'that row is lowered simultaneously, as has been heretobefore explained. The downward movement of the naught stop 16 frees the abutment 104' permitting the bar 82 to be carried forward. Simultaneously with the'disengagement of the abutment 104 and the. stop pin 16, the lever 86 is raised by meansof the spring 91 which in its upward L movement moves the notch 88 to fit against the front side of the reciprocating bar 89. Attention is called to the fact that when the parts are in their normal position, the bar 89 i is at the limit o fits rearward movement and rests against the vertical wall 105 of the abutment .104. As soon as the notch 88 engages I the reciprocating ban 89, the said bar is locked tobefore described, the bars 82 and 86 Will.

between it and said vertical wall 105 so that when the said bar 89 is reciprooated by means of the lever 114. and its assocnited parts, herethe bar 86 the bell crank 97 is moved down to the position shown in Fig. 5. As the bar 89 is reciprocated by the 1e ver-1 14, the said bars 82 and 86 will be carried with it until the cam face 101 of the bell crank engages the rectangular abutment 19 of the stop pin 14 whlcla wall 105' of the abutment 104' will engage the rear end of the raised stop pin 14 and prevent the bar 82 from moving further. Since the reciprocating bar 89 is released as the bar 82 is stopped, the bar 89 will continue its forward movement (Fig. 4) although the bar 82 and the lever 86 have been stopped. This is for the purpose of freeing the bars 82 and 86 from the reciprocating member 89 as they engage the stop pins in their forward position and thereby permitting the bar 89 to carry all of the bars 86 forward whichhave not been freed therefrom in the manner heretofore described. Due to the rack teeth 119, as the bar 82 has moved forward, the type segment 121 has been oscillated through the medium of the gear wheel 120 as heretofore described. As is shown in Fig. 5, the stop pin 14 which represents the di it2 is 'raised and in this casethe bar 82 has been permitted to pass over one stop pin and the zero sto and consequently rotates the gear wheel 128 two spaces or teeth, which rotation oscillates the type segments 121 from oscillating downwardly and reciprocating the associated bars 82 backward.

Means is provided for locking and alining the type segments after they have been set under control of the stop pins so that they may not move during the printing operation. This locking and alining means will now be briefly described. I

The extreme upper end of the lever 72 is provided with a knife shaped transversely extending arm 130 slidably mounted within a slot 131, within the cheek plates 34. Both the slot 131 and the knife shaped member 130 whichis herein termed a detent, are arranged radial to the gear teeth 123 of the type segments and lock the said segments from moving, and line up the type carried thereby. -The locking of the printing seg- 'ments and the releasing of the stops 14, is

brought about simultaneously so that the reciprocating members may be free to be moved back to their original position after printing without engaging any stop'pins whatever except the naught stops 16 as will be hereinafter more fully described.

Should all of the elements thus far described operate in the manner explained it will be apparent that all of the type segments which have not been set up by various stop pins will be held in the naught position and consequently print ciphers. As a result should a number such as 324 be set up by the stop pins, six ciphers would be printed in front of the digit 3 and the number 324 tion which have been left against the naught stops as the released bars 82 start on their forward movement.

Relatively thin levers 132 are provided which have on their upper edges an abutment 133 provided with a front cam wall 134 and a rear cam wall 135. The said rear cam wall is adapted to engagecam wall 136 formed on the bottom edge of the reciprocatable bar 82 when the rack bars are retracted beyond zero printing position. The levers 132 are pivotally mounted upon a transverse shaft 137 which is reciprocatablymounted within slots 138 made in the cheek plates 34. Means is provided for reciprocating the shaft 137 and this means comprises bell cranks 139 each having a bifurcated upper end which straddle the pin 137. The bell cranks 139 are pivoted on. a shaft 140 rigidly mounted in the cheek plates 34 and each has on its outer end a rigid horizontally extending pin 141 which iits within the bifurcated end 142 (Fig. 2) of a lever 143, which lever is pivotally mounted upon a stud 144 rigidly mounted in the cheek'plates 34. The other end of the lever 143 is provided with a roller 145 whlch runs in a cam groove 146. Comb plates 147 and 148 are rigidly mounted between the cheek plates 34 and provide guides for the bars 132. Each lever 132 is continued rearwardly in a lever 149 (Fig. 3). The outer end of each lever 149 carries a lip 156 which extends horizontally to the right of the lever 149'a suflicient distance to engage the adjacent bar 132 of the. next lower order. A spring 157 is stretched between a bar 152 fastened between the cheek plates 34 and a downwardly extending ear 159 made integral with the lower edge of the bar 149. This spring is for the purpose of normally holding the levers 132'and 149 in such,a position that the rear cam wall135 will engage the cam face 136 of the rack bar when the rack bar is retracted beyond zero-printing position.

The operation of this mechanism will now a be described. As the various stop pins 14 are elevated, and the associated stop'pins 16are lowered, as has been heretofore described, the bars 82 are started ontheir forward stroke. As they move forwardly the cam face 136 on the bottom edge' of the rack bar 82 will strike the cam face 133 of the lever 132 and force it downwardly in the position shown in Fig. 3. The downward movement of. the lever 132 will elevate the lever 149 which, through the medium of the horizontally extending lip 156 fastened thereto, will engage the adjacent lever 132 to the right thereof and force the inner end of it down. As the levers 132 are forced down they will clear the bottom edge of the levers 82. After all of the bars 82, which have been controlled by the stops 14, have started on their forward movement and have forced down all of the levers 132 associated to the right thereof, the bell crank 139 is moved in a clockwise direction by means of the roller 145, cam groove 146 and its other intermediate associated elements. This movement of the bell crank 139 will reciprocate a depressed either by a movement of the bar 82 or by a lip 156 carried by the adjacent bar 149, will still be in their upward position as mentioned above in which the cam face 135 lies adjacent the cam face 136 of the reciproeatable bar 82. As a consequence, when these last mentioned levers 132 are moved by the bell crank 139 a longitudinal slot 162 made in the inner end of the lever 133 will receive the bar 160 and prevent the lever. 132 from being depressed. As the bars 132 move further under the action of the bell crank 139, the cam face 135 will engagethe -cam face 136 and force it backwardly. The earn groove 146 is of such contour that the bell crank 139 will move the bars 82 back one space, so that-the type segments associated therewith will 00- cupy a position as shown in Fig. 1 in which the naught type are belowthe printing position. As a consequence, when the bars 82 have finished their forward movement and are set up for printing, all of the type segments to the left of any type segment which is controlled by a stop pin 14 willbe kicked sponding to the perforations in the cards fed through thernachine are raised, the naught stops in those rows are simultaneously lowered which will permit the members 82 to move forward. The forward movement of the bars 82 rocks the levers 132 in an anticlockwise direction, and all-of the levers 132 of a lower order will also be rocked through the instrumentality of the lips 156, but all of the bars 82, of an order higher than the rack bar of the highest order that is permitted by which at the same time raises the naught stops the removal of the naughtstop and the setting of the pin 14 to be moved forwardly will be kickedback one space so that the type seetors are oscillateddown out of printing position. The bars 82 which have been moved forward come to rest when the abutment 104 strikes the rest pin 14 and the reciprocating bar 89 completes its forward movement. When all of the type sectors are in position to print, the detent mechanism is operated,

which slides the detent 130 into the gear teeth 123 of the type segments and locks them against movement. Simultaneously-with the operation of the detent mechanism, the release mechanism'releases the stop pins 14 and permits them to be drawn down into their original position by means of the bars 62 16., The paper carriage 13 is then as will be explained, moved up into engagement with the type on the type segments, and the printing operation takes place. The printing ca-rriag'e is then retracted and at the same tlme means is provided for lowering the bars 86 so as to raise the bell cranks 97 so that when the bars reach the limit of the rearward stroke the rest 103 will be. in position to rest upon the to of the naught stops which are in their raise position as shown in- Fig. 3.

The means for lowering the bars 86 and lifting the bell cranks comprises a transverse bar 163 which is arranged'above the upper edge of the bars 86 being rigidly carried by a the upper ends of slide levers 164 arranged adjacent theinner face of each cheek plate 34 which, during their downward movement, slide the bar 163 in slots 165 made in the said cheek plates. The slots 165 are of a length sufiicient to permit the bar 163 to move down in contact with the upper edges of the bars 86 and force them downward until they occupy the osition shown in Fig. 2. The lower ends of t e levers 164 are provided with pins 166 which project through slots 167 in the cheek plates 34, which slots are of a length equal to the slots 165. The levers-164 are reciprocated up anddown by means of levers 168 arranged adjacent the innerfaccs of the .cheek plates 34 and having bifurcated rear ends 169 which straddle the pins 166. The levers 168 are pivoted at 170 to each cheek plate 34 and their other ends 171 (Fig. 2) are bifurcated to receive pins "172 carried by the ends of hell cranks 17 3 which are pivoted to the cheek plates 34 at the point 174. The forward; ends of the bell cranks 173 are connected at the point 175 so as to form one lever 176 which carries on its outer'end a roller 177 which isiarranged to run on the outer periphcry of the cam 269. A coil spring 178 is stretched between apin 179 carried by. the bell crank 173 and a lug 180 carried by the cheek plates 34 and provides means for normally holding the bell crank 17 3 in a downward position and the bar 163 in a raised posiin Fig. 3. As has been before described, after the printing operation takes place the bar 163 is lowered so as to come in contact with the upper edges of the bars 86 and force them downward intoithe position shown in Fig. 3. At about the same time the bars 86 are forced downward by means of the bar 163, the bell cranks 139 are operated by the mechanism heretofore described which will lower the levers 132 and disengage the abutments 135 thereof from the cam faces 136 formed on the lower edges of the rack bars 82 and permit the rack bars to move forward until the abutments 104 carried thereby, come into engagement with the notches 38 of the naught stops 16. a

The means for causing the forward movement of the bars which have been released from the kick back mechanism, comprises levers 181 pivoted to bars .182 carried by the cheek 'plates34, the upper ends 183 of which are adapted to come in contact with pins 184 carried by rack bars 82, and force them for- ,ward by means of springs 185 stretched between the lower ends of the levers 181 and a rod 186 carried by the cheek plates 34. The forward movement of the upper ends of the levers 181 is limited by means of a horizontally disposed comb plate 187.

Thus far a description has been given which explains the manner and the means by which the type sectors are set up in consorection may be termed the printing stroke.

The accumulating elements of the machine are arranged to be operated during the rearward movement of the bars 82, and a description of this mechanism is given in said copending. application setting forth in detail its cooperation withthe'bars 82 which serve as its actuating means.

The accumulating mechanism comprises a reciprocating carriage having spaced verticall arranged cheek plates 189 which are arranged within and adjacent to the cheek plates 34 respectively as is shown in Fig. 3. At the lower part of the forward ends of the cheek plates is mounted a transverse horizontally extending shaft 192, the outer ends of the shaft 192 projecting through longitudinal slots 193 in the cheek plates 34. Upon the shaft 192 are mounted suitable spacing collars which are rigidly heldtogether between the cheek plates 189 by means of collars 194 which clamp against the outside of the cheek plates 189 by means of nuts 1%. Revolubly mounted in each of the spacing collars is a gear wheel 197 having ten gear teeth thereon. One side face of each of the gear wheels 197 is provided with an annular collar 199 having on its periphery an abutment 200 providing a radial face and an inclined cam face. The abutment-200 is made on the periphery of the collar 199 so that it lies adjacent gear tooth O of the gear wheel 197. The collar 199 is also provided with an abutment 203 having a rounded face, and this .abutment is arranged adjacent gear tooth 5 and diametrically opposite the abutment 200. The functions of the abutments are described in detail in said co-pending application. The rear ends of the cheek plates 189- are provided with longitudinal slots 205 which receive a guide rod 206 rigidly carried by the cheek plates, 34.

Means is provided for reciprocating the accumulating carriage backward and forward on the guide rod 206 and the shaft 192 which carries the accumulating gear wheels. This means comprises levers 207 (F ig.-2) which have their upper ends respectively pivoted to the shaft 192. The lower ends of the levers are pivoted to stud shafts 211 on the hpper part of the levers 213. The lower parts of the levers 213 extend inwardly toward each other and are provided with vertically extending relatively rectangular shaped plates 219 pinned together at their upper and lower edges by means of pins 221. The said plates 219 and 220 are provided with registered openings to receive a cam shaft 225, which cam shaft is loosely mounted on a shaft 226 which passes through its center rigidly mounted upon which are collars 227 which abut against the ends of the cam shaft 225. The collar 227 is provided with an annular grooveadapted to receive the bifurcated end 231 of a lever 232 which is pivotally mounted at 233 on the frame work as is shown in Fig. 3.

The base carries the entire type setting and accumulating mechanism and also the re-v ciprocating printing carriage 13. The lever 232 intermediate of its ends is provided with a rectangular cage 235 within the wall of which is reciprocatably mounted a plunger 238 having a cam engaging head on its upper end. A spring 240 is compressed between the inner face of the said cam engaging head and. the wall of the cage. The spring is normally held compressed by means of a bell crank 239 pivoted to the lever 232 one end 241 of which is adapted to engage a collar 242 carried on the inner end of the reciprocating plunger 238. The other arm of the bell crank 239 is provided with a key 210', which upon being pressed, disengages the lever 241 from the collar 242- and permits the one side by the said groove and thereby cause a sidewise movement of the lever 232 which will slide the cam shaft 225, the purpose of which shifting will be hereinafter set forth. As the cam shaft 74 reaches the end of its rotation said cam grooves each tcr-,

minating in an abutment having an inclined face will engage the end of the head of the plunger 238 and force it downwardly until the-collar 242 slides over an inclined face on the lever 241 and snaps in back of the said lever and is held in its locked position as is shown in Fig. 3. A coil spring 248 stretched between the end of the lever 241 and the upper edge of the lever 232 provides means for normally holding said end in an upward position to be engaged by the collar 242.

Returning now to the leve'rs 207 which as stated are for the purpose of reciprocating the accumulating carriage, these levers are pivotally mounted upon a tranverse shaft 250 which is mounted in the cheek plate 34. Between the said levers 207 and pivotall mounted on the shaft 250 are contact en s 251 of two separate levers 253 respectively each having an opening receiving the cam shaft 225. The outer ends of the levers 253 carry rollers of which one 260 is shown engaging a cam groove 262 which, during the rotation of the said cam shaft 74 transmits a rocking motion to the said lever 253 which through the medium of the levers 215 and207 reciprocates the accumulating carriage, when the said accumulating elements thereof are actuated for accumulating purposes only.

When operated by the other lever 253 the accumulating carriage will be operated for taking totals. Coiled springs 263 are stretched between ears 264 carried by the levers 207 and 215 for the purpose of normally holding said levers in alinemcnt. The springs 263 are of such strength that the levers 207 and 215 are for all practical purposes a single lever.

\Vhen the cam shaft 225 is slid by the lever 232 to one limit of movement, one of the levers 253 is locked to the levers 215 and the accumulator carriage is rocked for accumulating items. However, when the cam shaft 225 is, moved to its other limit of moy'cment, the other lever 253 is locked to the lever 215 and the carriage is reciprocated for taking totals, the cam grooves 262 being differently designed so that this is accomplished.

The arrangement and operation of the cam shaft 225 and its cooperating parts are described in detail in said co-pending application.

In Fig. 3, the position of the parts is such I bars 82 return rearwardly, however, the ac 'cumulating carriage will -be moved forwardly lllltll tlte accumulator wheels-197 have been brought in contact with the gear'teeth123 of the type segments. The rearward movement of the bars 82 will then rotate the accumulatr ing gear wheels 197 and turn the teeth thereon to an extent'which corresponds with the type last set up by the type segments. When the rack bars 82 have reached the limit'of their rearward movement, the lever 253 is again rocked to reciprocate the accumulating carriage rearwardly and thereby. disengage the accumulating gear wheels from the gear teeth of the type segments, and bring the said accumulating gear wheels into engagement with a transverse bar 272 which is carried by the cheek plates 34 and holds the said accumulating gear wheels against accidental shifting.

This reciprocation of the accumulating carriage backward and forward and the engage- 'ment and disengagement of the accumulating gear wheels with the gear teeth'of the type segments takes place as the bars 82 are at rest. However, when any of the accumulatmg gear wheels have madeacomplete rotation and the inclinedwall of the abutment 200 carried by the said gear wheel has been broughtinto engagement with the inclined wall 273 made on the lower end ofan L shaped lever 275, the said lever is rocked upwardly on its pivot 277 against the action of a coil spring 27 7 stretched betweenthe lever 27 5' and a transverse rod 277. carried between the cheek plates 189 of the accumulatinggarriage. This spring normal y holds the lever 275 in a horizontal postion as is shown in Fig. 3, the upward movement of the lever being limited by a transverse rod 277 mounted between the cheek plates 189. In its horizontal position, the lever 275 holds a vertically extending lever 278 to the limit of its upward movement, the upper edge of the lever 275 engaging a. li 279 carried by the side of'the lever 27 8, wiich movement is limited by the rod 277 50. mounted in a longitudinal slot 280 in the end of the lever 278, and holds the said lever 278 in its'said upward position against'the tension of a coil spring280 stretched between the said lever and a transverse rod 281 carried between the cheek plates 189. A hori zontally disposed comb plate 281 carried between the cheek plates 189 forms guideways for the vertical extending levers 278. Pivoted to the lower end of the lever 278 at the point 282 is a lever 283, fitting in a vertically disposed guide comb plate 284. The other end of the lever 283 is pivotally the lower end of a lever 285 which is provided. with an enlarged slot 286 receiving'the transverse shaft 277. The upper end of the lever connected to- 285Kis shaped to form a lever 287 which extends rearwardly in a relatively horizontal position and is pivotally mounted upon a transverse rod 289, carried between the cheek the outer end of the lever 287 in a downward position. The said outer end of the lever 28? is slidably mounted in a Vertically disposed comb plate 292 and carries on its outer end a rotatably mounted roller 294 adapted .to engage a stepped cam plate 295 provided with cam surfaces 295 which plate is reciprocated back and forth for lifting the roller 294 and rocking the lever 287 against the tension of the spring 290. The cam plate 295is disposed between the cheek plates 34 and carries at its side edges rollers 296 which are adapted to roll in longitudinal slots 297 (Fig. 2) in the cheek plates 34. a

Themeans for reciprocating the camplate 295 backward and forward comprises levers 298 pivotedto the cam plate at the point 299, carrying on their lower edges rack teeth 300 which mesh with pinions 301, rotatably mounted upon a shaft 302 slidably mounted in longitudinal slots 303 in the cheek plates 34. Rollers 304'prevent the upward movement of said'levers 298 and keep the rack teeth in engagement with the pinions 301. The pinions plates 34.

The shaft 302 is moved backwards and forward in slot 303 by means of levers 307 which have bifurcatedupper ends 308 receiving said shaft 302. :The levers307 are fulcrumed on stud shafts 309 carried by the cheek plates 34. The lower ends of the levers 307 are bifurcated as at 310 to straddle a transverse shaft 311 reciprocated in parallel'slots 312 (Fig. '1)'in the frame work 234. Attention is called to the fact that the transverse shaft 311 passes through the entire machine and is arranged to receive the levers 307 of each independent unit or zone. Levers 313. arranged on each 301 are also in mesh with stationary rack bars 305 fastened'to the outer faces of the cheek side of the machine have one of their ends 314 pivotally mounted on the transverse shaft 311 and their other end provided with longitudinal slots 315 to receive the main drive shaft 74. This end of-each lever 313 is provided with a rotatably mounted roller 318 which is arranged to rotate in a cam groove 319 in the foam 77. As the main shaft 74 is rotated the stepped cam plate 295 is through the lever position when the vertical portion 273 thereof has been raised by engagement with the abutment 200 carried by the accumulative gear wheel. This means comprises a bell crank lever 320 (Fig. 3) pivoted upon a transverse shaft 321 carried by the cheek plates 189 of the reciprocating carriage. Horizontally dis osed comb plates 322 are provided for guiding these levers during their rocking movement. A coil spring 324 stretched between the upper end of the lever 320 and a transverse shaft 325 carried by the cheek plates 189 will normally pull the upper end of the lever 320 forwardly and hold it against the inner end of the lever 275 when the said lever is in the horizontal position. When the lower end of the lever 275 is raised as heretofore described, the vertically extending portion 326 thereof will snap within a notch 327 formed in the front edge of the lever 320 and hold the said portion 326 in its downward position. The other arm 328 of the bell crank 320 is adapted to come in contact with the transverse shaft 206 and upon doing so will move the upper end of the lever rearwardly against the tension of the spring 324 releasing the vertically extending portion 326 of the lever 275 from. the notch 327 and permitting the said lever 275 to occupy its horizontal position under the action of the spring 277.

A description of the operation of the carry over mechanism which has just been above de sired will now be given. After the accumulating gear wheel has made a complete rotation and the abutment 200 thereon comes in contact with the cam face 273 of the vertically extending portion 274 of the lever 275 the said lever will be rocked about its pivot so that its inner end is lowered. The lowering of the inner end of the lever 275 permits the vertically extending rod 278 to be drawn down under action of the spring 280 so that the lever 283 will be dropped down in front of the abutment 104 carried by the reciprocating bar 82. Attention is called to the fact that when any one of the accumulating gear wheels has made a complete rotation the reciprocating bar 82 associated therewith will of necessity be in its extreme rearward position. Both the vertically extending lever 278 and the inner end of the lever 275 descend simultaneously, the lever 275 being locked in its downward position by means of the bell crank 320 and the vertical lever 278 being held in its downward position by means of the coil spring 280. VVhenthepartsare inthe position above described, the reciprocating cam plate 295 is moved forwardly by means of the levers 298, 307 and their associated elements. ward movement of the cam plate 295 will engage the inclined cam surface 295' thereon with the roller 294 carried by the inner end of the lever 287 thus raising the roller. The lift ing of the roller 294 will rock the lever 285 A fori about its pivot 289 thereby forcing the lever 283 pivoted theretoin a rearward direction and bringing the inner end of the lever 283 into engagement with the abutment 104 made on the upper edge of the reciprocating bar 82, and force the said bar backward a distance sufficient to turn the gear wheel 120 to oscillate the type segment a distance sufficient to rotate the accumulator gear wheel With which it is associated back one tooth. It is of course to be understood that due to the fact that the abutment 200 is carried by the left hand face of the accumulative gear wheel, the

set back mechanism heretofore described of the next adjacent accumulative gear Wheel to the left is actuated. In other words, a rotation of one of the accumulative gear wheels will actuate the set back mechanism of the accumulative gear wheel of the next higher order.

A brief description of the entire machine thus far described will now be given, explaining the sequence of operation of the various mechanisms to print and accumulate the the data perforated in the cards which are passed through the machine.

As a card is fed through the machine various stop pins 14 are'elevated by means of plungers, the stop pins corresponding with the various perforations of the card. The elevation of the stop pins 14. will lower the naught stops 16 in the rows in which the stop pins are elevated. The lowering of the stop pins will permit the reciprocating bars 82 associated therewith, to be moved forwardly. The forward movement of the bars 82 will depress the levers 132 which are as sociated therewith, and these levers will de press all of the levers 132 to the right there of which have not been depressed by the forward movement of the reciprocating bars associated therewith. All of the levers 132 wever, to the left of the lever 132 which has been depressed by the forward movement of the rack bar will still be in their upright position. Vhile the reciprocating bars 82 which have been released are moving forwardly, these last mentioned levers 132 will be reciprocated rearwardly by means of the bell cranks 139, levers 143 and other elements associated therewith, which in their rearward movement will force back the bars 82 with which they are associated, and oscillate the type segments actuated by these rack bars downwardly to a non-printposition. The bars 82 move forwardly under the action of the reciprocating bar 89 until the abutments 104' carried on their lower edges come in contact with the various elevated stop pins 14 at which time they come to a rest. When the rack bars 82 have come to a rest, the segments associated therewith have been oscillated upwardly a distance suliicient to set the type thereon in consonance with the number of the stop pins 14. WVhen all of the type segments have been ,oscillated into proper position the detent 130 is drawn down into. engagement with the gear teeth 123 on the type segments and alines andlocks them so that they cannot be moved during the printing operation. Simultaneous with the operation of the detent, the levers 62 and 163 .are actuated, the formereausing the drawing down of the set stop pins 14 and elevating all of the naught stops 16, the latter contacting with the reciprocating bars 86 for lowering them so that on their return movement the bell cranks 97 carried thereby will be in position to rest upon the top of the naught stops 16. The reciprocating printing carriage 13 is then brought into engagement with the type segments and an impression made on the paper caraied thereby. The rack bars 82 are now rea previous thereto the reciprocating accumulating carriage has been moved forwardly sothat the accumulating gear wheels are brought into engagement with the teeth 123 of the type segments. The locking detent for the type segments is withdrawn andthe reciprocating bars moved rearwardly under action of the bar 89. The rearward movement of the rack bars 82 will rotate the accumulating gear wheels through the medium of the type segments and rotate the gear teeth thereon corresponding with the type printed. When the bars 82 have completed their rearward motion, the reciproeating accumulating carriage is also moved rearwardly so as to disengage the accumlative gear wheels from the type segments and to move them into engagement with a transverse bar to lock them against further rotation. All of the elements are nowready for a second forward movement of the reciprocating bars 82, This operation continues.

.when any of the accumulative gear wheels have made a complete rotation, during which time the bars 82 associated therewith have moved rearwardly into naught stop position, the L shaped bars 275 are rocked, which through the mechanism heretofore described, will move the rack bar 82 adjacent to the left thereof, back one space so that the accumulative gear' wheel associated with this rack bar will also be moved back one space, and in this way form the carry over.

The above operation continues as the cards pass through the machine and the items thereon are printed by the type. seetors and accumulated on tile accumulator wheels until either a total card is fed to the machine or until it is desired to take the total of the data accumulated by operating a total key manually. A detail description of this total taking mechanism is given in said co-pending application, and is herein mentioned. only briefly.

All of the actions heretofore described have taken place when one of the levers 253,

for their rearward movement, but

which I might term the accumulating lever, is locked by means of the reciprocating cam shaft to the levers 215. When the total is to be taken the key 240 is lifted either manually or by a push rod A controlled by the perforated cards, as is described in my copending application, Serial No. 80,973, filed Feb. 28, 1916. The reciprocating plunger 238 is released, which will spring into the cam groove as stated and upon engaging therewith will rock the lever 232 about its pivot 233 and re- 'ciprocate the cam shaft 255, whereupon as explained in said application Serial No. 158,142, the locking of the lever 208 with the lever 253 which I may term the total taking lever will cause the said lever to reciprocate the accumulating carriage forwardly until the accumulator wheels are brought into contact with the type segments.

At the same time that the cam shaft 255 is reciprocated as above-described, means is operated for lowering the pins 14 and the naught stops 16 so that the bars 82 will be in a position to move forward. This means is described in detail in said co-pending apgripped between the abutments 104 and the notches 88 formed in the upper edges of the bars 86. The forward movement of the bars 82 rotates the accumulator gear wheels in the direction which is anti-clockwise in Fig. 3 until the radial walls of the abutments 200 come into contact with the rear edges of the vertically extending portions of the bars 275. \Vhen the accumulating gear Wheels have been stopped in the manner heretofore described they have rotated their associated type segments upwardly a distance sufficient to set into printing position the type corresponding with the gear teeth of the aecumulating wheels. Since all of the accumulating wheels will not rotate the same distance, but

since it is necessary that the bar 89 should move to the limit of its outward movement, means is provided for releasing the said bar from engagement with the notches 88 formed come in contact the lever 350 is forced downwardly, which will force the bar 86 also downwardly through the medium of an outwardly turned lip 354 formed on the outerend of the lever 350. The forcing down of the bars 86 as before described, will release the transverse reciprocating bar 89 and permit it to move forwardly to the limit of its stroke. When all of the type segments have been set up in the manner heretofore described, the detent 130 is brought into contact with the gear teeth of the type segments and locks the said segments in printing position. The reciprocating printing carriage 13 is then moved up into engagement with the type and an impression made on the paper carried thereby. This impression gives the total of the data accumulated by the accumulative gear wheels. After the printing operation is completed the detent 130 is lifted. The bars 82 then move rearwardly during which motion the reciprocating plunger 238 is forced back into its locked position as shown in Fig. 3, and the lever 232 has been rocked about its pivot 233 and thereby reciprocated the cam shaft 225 back to accumulating position. All of the parts are now in the position to accumulate further data.

It is to be understood that all the description thus far has been given relative to the operation of one unit of the machine, that is, one printing and accumulating section composed of 9 type sectors and 9 accumulating gear wheels together with their associated and cooperative elements. It is also to be understood, however, that each unit may contain a greater or less number of associated printing and accumulated elements. The complete machine, however, comprises a number of units each identical with the unit heretofore described.

As the rack bars 82 and the type sectors 127 move to printing position a selected type, and rotate the accumulator gears a selected amount, they may be termed selectingmeans.

If it is desirable to split a column, so that any particular line of digits will neither accumulate or print, means is provided for holding the bars 82, associated with the digits to be kept from printing and accumulating, so that they cannot run forward and backward to set type and accumulate and also tohold the bars 82 back far enough to cause I the type segments associated therewith to occupy a non-print position. This means comprises a plurality of latch levers 401 (Fig. 3) which are pivotally mounted upon a transverse bar 402 carried between the cheek plates 34 of the machine. WVhen it is desired to render a line of digits inoperative, the reciprocating bar 82 associating therewith is drawn back so that the upper end of the latch lever 401, which is provided with a hook 403 will hook over a horizontally extending pin 404 carried by the vertically extending portion 92 carried by the bar 82.

1 it is often times found desirable in the operation of the machine to have one of the units only set one number into the accumulating mechanism associated therewith and then lock the accumulating mechanism out so that during the subsequent operation of the machine, although the same number is set up and printed by the unit, the number will not be added by the accumulator. The mechanism for accomplishing this object comprises parts 405, 415 and 443 (Fig. 2) and is described in detail and claimed in said first named co-pending application. It need not, therefore, be described herein.

The printing carriage, designated generally by reference numeral 13 (Fig. 1) is lo-.

cated on the rear of the printer tabulator base, to the rear of the tabulating mechanism. The carriage is supported at opposite ends, on the cam shaft brackets 599 and the lever shaft brackets 601 carried on the base plate of the printer tabulator.

The lever shaft brackets 601 are provided at their upper ends with guide slots 604 in which are guided L-shaped carriage supporting brackets 605 provided at their forward ends with anti-friction rollers 606 adapted to reciprocate in the elongated openings .607.

The printing carriage is carried on these L-shaped brackets and is reciprocated therewith by means of bell-cranks 610 pivoted on a shaft 611 and provided with a roller engaging in a groove on a suitable cam carried on the cam shaft 74. The carriage is reciprocated so as to bring the paper against type while the type segments are held locked by the de tent 130.

The printing carriage is described in detail in said first named 'copending application.

I claim as my invention:

1. A printing tabular mechanism comprising printing elements, reciprocating members operatively associated therewith. stops for limiting the forward movement of the reciprocating members, means for locking the printing elements when the reciprocating members have come against the stops, means for releasing the locking means from the printing elements and removing the stops, an accumulating mechanism, means for operatively connecting the said mechanism with the printing elements whereby they will be operated by the backward movement of the reciprocating members, driving means, means for connecting the said driving means with the reciprocating members. means for disconnecting the driving means from the re ciprocating members when the said members have engaged the stops, and means for dis connecting the driving means from the reciprocating members when the said members have set the printing elements in naught poeating levers operatively connected to said comprising sition by their backward movement, said last disconnecting means' comprising stops placed in operative relation with the reciprocating members by the removal of the first mentioned stops. 1

2. A printing tabulator mechanism com- .prising printing elements, accumulating elements, reciprocating members operatively associated with the printing elements, a carryover mechanism,-said carry-over mechanism vertically movable members adapted to be lowered to contact with the reciprocating members for moving them, means for holding the said verticallymovable members out of contact with the reciprocating members, said holding means comprising levers in contact with the vertically movable members and adapted to come in contact with the carry-over abutments carried by the accumulating elements, said abutments arranged to move the levers out of sup-. porting relation with the vertically movable members so that the said. verticall movable members may contact with the reciprocating members for moving them, and means for actuating the vertically movable members for moving the reciprocating members, said actuating means comprising cams operatively as sociated with the vertically movable members.

3. A printing tabulator mechanism for use with perforated cards comprising a printing mechanism and a -tabulating mechanism, said printing mechanism comprising type segments, reciprocating rack bars operatively associated therewith, stops for normally holding said reciprocating rack bars in a osition whereby the type segments operative y associated therewith will print zeros, means operated by the perforated cards for releasing various stops thereby freeing the reciprocat- .ing rack bars associated therewith, reciproreciprocating rack bars, means for operating the reciprocating levers associated with the reciprocating rack bars not freed by the perforated cards' whereby the said levers will move the said rack bars to position the type segments associated thereby in nonpr1nt position, the reciprocating levers associated with vthe freed reciprocating rack bars renei dered inoperative by the reciprocation ot the said'rack bars, each of the saidreciprocating levers operatively connected with its adjacent lever to the right thereof whereby one is operated by the other, and means for breaking the connection between any lever and its adjacent lever to the right thereof so that the said levers will be operated by each otherin groups for the purpose described.

4. A printing tabulator mechanism for use with perforated cards comprising a printing mechanism and a'tabulating mechanism, said printing mechanism comprising type segments, reciprocating rack bars operative said reciprocating rack bars,'means for operating the reciprocating'levers associated with the reciprocating rack bars not freed by the perforated cards whereby the said levers will move the said rack bars to position the type segments associated therewith in non-print position, the reciprocating leve'rs associated with the freed reciprocating rack bars rendered inoperative by the reciprocation of the said rack bars, arms pivoted to said levers andhaving lugs engaging the adjacent lever to the right so that one is operated by the other, and means for moving any of the pivoted a'rms whereby the lugs will be'brought out of contact with the adjacent lever to the right, whereby the said levers will be operated by each other in groups for the purpose described.

5. In an accounting mechanism of the character described, the combination withsettable stops; of an actuating member adapted to be stopped by a set stop; selecting means controlled by said member; a reciprocatory drive member adapted to positive'ly drive and restore the actuating member; and a releasing means adapted to be actuated by a set stop to cause said drive member to release the actuating member during its actuating movement. J

6. In an accounting mechanism of the character described, the combination with settable stops; of an actuating member adapted' to be stopped b a set stop; selecting means controlled by sai member; a reciprocatory drive member adapted to restore the actuating member; a movable member on the actuating-member and adapted to be positively driven by the drive member; and a releasing member engaging the actuating member and the movable member and adapted to be actu- .ated by a set stop to causesaid movable meming means controlled bysaid actuating members and including type carriers, a movable member fulcrumed on each actuating bar and provided with an outwardly disposed shoulder; a'member pivotally mounted on each actuating bar and loosely engaging the movable member and provided with lower cam front face adapted to cam a set stop and with a rearwardly disposed notch adapted to engage over the front of the set stop; and. a drive member adapted to engage said shoulder.

8. In an accounting mechanism of the character described, the combination with rows of vertically movable stops; of an actuating bar disposed above each row and provided with an abutment adapted to engage behind any raised stop; selecting means controlled by said bars; a bar-shaped member fulcrumed on each actuating bar and provided with an outwardly disposed shoulder; a member pivotally mounted on each actuating bar and loosely engaging the bar shaped member and provided with a lower cam front face adapted to cam over said stops and with a rearwardly disposed notch adapted to en gage over the front of any raised stop; and a transverse reciprocating bar adapted to engage said shoulder.

9. In an accounting mechanism of the character described, the combination with rows of vertically movable stops; of an actuating bar disposed above each row and provided with an abutment adapted to engage behind any raised stop; selecting means controlled by said bars; a bar-shaped member fulcrumed on each actuating bar and provided with an outwardly disposed shoulder, a member pivotally mounted on each actuating bar and loosely engaging the bar shaped member and provided with a lower c'am front face adapted to cam over said stops and with a rearward notch adapted to engage over the front of any raised stop; and a transverse reciprocating bar adapted to engage said sl'loulder.

1b. In an accounting mechanism of the character described, the combination with rows of movable stops each provided with a lateral rectangular abutment; of means for raising said stops; an actuating bar disposed above each row of stops and each provided with an upper inwardly disposed abutment and a lower abutment adapted to engage behind any raised stop; selecting means controlled by said bars; an upwardly spring pressed bar-shaped member each fulcrumed at its forward end to an actuating bar and provided with an outwardly disposed shoulder adapted to be spaced from and opposed to said upper abutment; a bell crank lever pivotally mounted on each actuating bar and looseky engaging the associated bar shaped member and provided with a lug forming a downwardly disposed cam front face adapted to cam over said lateral abutments and with a rearwardtv and downwardly disposed right angular notch adapted to engage the front of the lateral abutment of any raised stop and a transverse reciprocating bar adapted to be disposed between said shoulder and said upper abutment.

l1v In an mechanism accounting the character described, the combination with rows of vertically movable stop pins each provided with an inwardly and downwardly inclined upper cam face and lateral rectangular abutment; of means for raising said stop pins: an actuating rack bar disposed above each row of stop pins and each provided with an upper abutment having aninwardly disposed front wall and a lower abutment having a vertical front wall adapted to engage behind any raised stop pin; selecting means meshing with and controlled by said bars; and upwardly spring pressed bar shaped members each fulcrumed at its forward end to an actuating rack bar and provided with a notch forming an outwardly disposed shoulder adapted to be spaced from and opposed to said inwardly disposed front wall; a bell crank lever pivotally mounted on each rack bar and loosely engaging the bar shaped member and provided with a downwardly extending arm provided with a lug forming a forwardly and downwardly disposed cam front face adapted to cam over said lateral abutments and with a rcarwardly and downwardly disposed right angular notch adapted to engage the lateral abutment of any raised stop ;and a transverse reciprocating bar adapted to be disposed between said shoulder and said upper abutment.

12. In an accounting mechanism of the character described, the combination with rows of movable numeral stop pins each provided with a restoring notch; a zero stop pin associated with and in alinement with each row of stop pins and provided with a lug engaging recess; elongated levers pivotally mounted between said rows and each provided with lateral projections engaging'in said notches; intermediately fulcrumed connecting links each having one end loosely connected to the levers and the other end provided with a lateral lug engaging in said recess; means for raising numeral stops; and selecting means controlled by the stops.

13. In an accounting mechanism of the character described, the combination with rows of vertically movable numeral stop pins each provided in its lower part with a long lower restoring notch; of a zero stop pin associated with and in alinement with each row of stop pins and provided with a lug engaging recess; elongated levers at One end pivotally mounted between said rows of stops and provided with lateral projections engagin in said restoring notches; intermediately fulcrumed connecting links each having one end loosely connected to the depressing levers and the other end provided with a lateral lug engaging in said lug receiving recess; means for raising numeral stop pins; and selecting means controlled by the stops.

14. In an apparatus of the character de scribed, the combination of selecting means; a drive member adapted to positively actuate and restore said means; and settable means adapted when set to hold the selecting means against retrograde movement and to cause said drive member to release the selecting member.

15. I11 an apparatus of the character described, the combination of selecting means; a drive member adapted to positively actuate and restore said means to and from various selected positions; and settable means adapted when set to hold the selecting means against retrograde movement and to cause said drive 'member to release the selecting means in one of said selected positions.

16. In an apparatus of the character described, the combination of selecting means;

a drive member adapted to positively actuate and restore said means; and settable means adapted when set to hold the selecting means against retrograde movement and to cause said drive member to release the selecting means during the actuating movement of the drive member.

17. In an apparatus of the character described, the combination of an actuating member; selecting means including type carriers controlled by, said member; a drive member adapted to positively actuate and restore the actuating member; and settable means adapted when set to hold the actuating member against retrograde motion and to cause said drive member to release the actuating member during the actuating movement of the drive member.

18. In an apparatus of the character described, the combination of an actuating member; selecting means controlled by said member; a drive member adapted to posi tively actuate" the actuating member; and settable stops each adapted when set to hold the actuating member against retrograde movement, and to cause said drive member to release the actuating member.

19. In an apparatus of the character described, the combination of an actuating member; selecting means controlled by said member and adapted to be moved thereby to various selected positions; a drive member adapted to positively actuate the actuating member; and settable stops each adapted when set to hold the actuating member against retrograde movement, and to cause said drive member to release the actuating member when the selecting means reaches the selected position. i

20. In an apparatus of the character de- V scribed, the combination of an actuating member; selecting means including type carriers controlled by said member; a drive member adapted topositively actuate and restore the actuating member and settable means adapted when set to hold the actuating member against retrograde motion and to cause said drive member to release the actuating member. I

scribed, the combination of an actuatin bar,

having a forwardly disposed restoring s oulder and a stop shoulder; selecting means including type carriers controlled by said bar; a reciprocatory drive bar adapted to engage said shoulder and positively restore the actuating bar; connecting means between said actuating bar and drive bar whereby said actuating bar is actuated forwardly; settable means adapted when set to hold the actuating bar against forward motion during the driving movement of the drive bar.

22. In a machine of the class described, the combination of a diflerentially movable member, a normally projected zero stop for positioning said member in zero position, a row of normally retracted stops for controlling the diiferential movement ofsaid member, each of said retracted stops being provided with a recess in one side face, a bar common to said retracted stops and lying adjacent to one side of said row of stops, means carried by said bar and projecting into the notches of said retracted stops, a connection between said bar and zero stop for retracting said zero stop upon movement of said bar by any one of said normally retracted stops as it is projected into cooperation with said difi'erentially movable member.

23 In a stop mechanism of the class described comprising a zero stop and a plurality of digital stops, a member common to said digital stops and normally contacting therewith to hold said stops in their home position, and a connection between said mem-' her and zero stop for normally holding said zero stop in projected position.

CERTIFICATE OF CORRECTION.

Patent No. 1,730,512. Granted October 8, 1929, to

WILLIAM W. LASKER.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 8, line 101, before the word "slot" insert the article "a"; page 9, lines 33 and 34, for the word "desired" read "described"; page 10, line 42, for "when" read "When"; page II, line 42, beginning with the word "As" strike out all to and including the word "means" in line 46; same page, after line 28, insert the paragraph "As the rack bars 82 and the type sectors 127 move to printing position a selected type, and rotate the accumulator gears a selected amount, they may he termed selectingmeans."; same page, line 109, claim I, for the word "tabular" read "tabulator"; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent flffice.

Signed and sealed this 7th day of January, A. D. 1930,

- M. J. Moore, (Seal) Acting Commissioner of Patents.

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