US2360789A - Printing business machine - Google Patents

Description

Ot. 17, 1944.- J. E. OSTLINE PRINTING BUSlNESS M AQHINE 7 Sheets-Shed: 1

Filed April 15 1942 INVENTOR. JOHN E. OSTLINE M,M M m I ATTORNEYS 1944- J. E. OSTLINE PRINTING BUSINESS MACHINE 7 Sheets-Sheet 2 Filed April 13, 1942 INVENTOR JOH?! E. OSTLINE Mfw Mm ATTORNEYS 7 'Sheets-Shet 3 INVENTOR. JOHN E. OSTLINE W). @443 m ATTORNEYS Oct. 17, 1944. J. E. OSTLINE PRFINTING BUSINESS MACHINE Filed April 13, 1942 1944- J. E. OSTLINE PRINTING BUSINESS MACHINE Filed April 13 1942 7 Sheets-Sheet 4 INVENTOR. JOHN E. QSTLINE M m- ATTORN EXS 0d. 17, 1944. os

PRINTING BUSINESS MACHINE 'fSheet-Sheet 5 Filed April 13 1942 mww 3 w/% I I 1 mmn mom wow INVENTOR, JOHN E. OSTLINE ATTORNEYS Oct. 17, 1944. J. E. OS TLINE 2,360,789

I PRINTING BUSINESS MACHINE Filed April 15, 1942 7Sheets-Shet6 O N a (DI-f, Lt: No 322 I? w 2 25 (O o m 2 0 N A .8 1

N1$ LO I 0 N o n I) Q 3 N s 8 o o s 3 (D N No 2 8 W n g INVENTOR. g F m JOHN E. OSTLINE w mm ATTORNEYS Oct. 17, 1944. Y j os I 2,360,789

PRINTING BUSINESS MACHINE Filed April 13 1942 7 Sheets-Shet 7 9 0 m 1D T u I N N I,

(O O 0.1 L0 N E FIG n INVENTOR. JOHN E. OSTLINE BY W, M

ATTORNEYS Patented Oct. 17, 1944 PRINTING BUSINESS MAC John E. Ostline, Chicago, 11L, asslgnor to Automatic Electric Laboratories, Inc., a. corporation of Delaware Application April 13, 1942, Serial No. 438,760

(or. 197-133) J 15 Claims.

The present invention relates to printing business machines and more particularly to such znachines of the automatic printer or typewriter It is an object of the present invention to provide in a printing business machine, an improved and exceedingly simple cutter mechanism operative to cut oil the section of a supply of paper stock upon which printing appears.

Another object of the invention is to. provide in a machine of the type noted, including a movable carriage, improved cutter mechanism which is operated by the movement of the carnage.

Another object of the invention is to provide in a machine of the type noted, including tabulating mechanism, improved cutter mechanism which is operated by the tabulati mechanism.

Another object of the invention is to provide in a machine of the type noted, including both a movable carriage and tabulating mechanism operative to control the movement of the carriage, improved cutter mechanism which is operated jointly by the, movement of the carrlage and the operation of the tabulating mechanism.

Still another object of the invention is to provide in a printing business machine of the type noted, including. a movable carriage provided with a rotatable platen roll, the combination of improved paper supporting and guiding mechanism carried by the carriage for feeding paper stock to the platen roll and improved paper cutting mechanism carried by the carriage for receiving the paper stock from the platen roll and for guiding it to a cutting position and for cuttingoff the section thereof upon which printing appears.

A further object of the invention is to provide in a printing business machine, including a movable support for a supply of paper stock, im-' proved electromechanical paper testing mechanism for detecting the normal position of the supported supply of paper stock.

A further object of the invention is to provide in a printing business machine, including a support for a supply of paper stock, improved stood by reference to the following specificationtaken in connection with the accompanying drawings, in which Figure 1 is a rear perspective view of a printing business machine constructed and arranged in accordance with the present invention; Fig 2 is a plan view, partly broken away, of the rear portion of the machine shown in Fig. 1; Fig. 3 is a rear elevational view, partly broken away, of the machine; Fig. 4 is a side elevational view, partly broken away, of paper supporting and guiding mechanism incorporated in the machine; Fig. 5 is a rear elevational view, partly broken away, of the mechanism shown in Fig. 4; Fig- 6 isa plan view, partly broken away, of paper cutting mechanism incorporated in the machine; Fig. 7 is a topelevational view, partly broken away, of the mechanism-shown inFig. 6;

electromechanical paper mechanism for detect.-

ing the adequacy of the supported supply of paper stock. j

A further object of the invention is to provide in a printing business machine, including a' movable support for a supply of paper stock, improved electromechanical paper testing mechanism for detecting both the normal position of Fig. 8 is a side elevational view, partly broken away, of the paper cutting mechanism: Fig. 9 is a plan view, partly broken away,- of a knife support incorporated in the paper cutting mechanism; Fig. 10 is a longitudinal sectional view, partly broken away, of the rear'portion of the machine showing the assembly of the paper supporting and guiding mechanism and the paper cutting mechanism with reference to the platen and pressure rolls of the machine; Fig. 11 is'a rear elevational view of paper position testing mechanism incorporated in-the machine; and Fig. 12 is a side elevational view, partly broken away, of the mechanism shown in Fig. 11.

Referring now more particularly to Fig. 1 of the drawings there is illustrated a printing business machine I00 incorporating the features of the present invention. The illustrated embodiment of the machine III is in the' form of an automatic printer or typewriter of thetype known as the electromatic typewriter having the general construction and arrangement shown in U. 8. Patent No. 1,777,055, Russeli G. Thompson, granted September 30, 1930.

, The machine llil comprisesanupper main" frame II, a, connected lower subframe ill hous-- ing the power mechanism, a movable carriage I03 and a plurality of type levers Ill. The power nets.

mechanism comprises the usual operating motor, power roll, clutch mechanism between the power 'roll and the type levers I04 and a plurality of operating keys. The subframe comprises casing structure I05 receiving the operating motor; while the main frame IOI supports a removable type hood I06 protecting .the type levers I04.

Also the main frame IOI carries a plurality of operating magnets adapted to control the associated operating keys and supports a removable magnet hood I01 protecting the operating mag- The carriage I03 comprises the usual assembly including spaced-apart end walls I08 rotatably supporting a removable platen roll I09 provided with a resilient covering, formed of rubber or the like, and cooperating with the type levers I04.

f Further the machine 100 comprises paper supporting and guiding mechanism H and paper cutting mechanism III, both carried by the carriage I03, and paper position testing mechanism II2 carried by the subframe I02.

Referring now more particularly to Figs. 1 to 3, inclusive, of the drawings, the carriage I03 is supported by the main frame I 0| upon structure including the rear carriage rail H3 and comprises a marginal stop rack II4 extending between the ends walls I08. The marginal stop rack carries two adjustable marginal stops. H5 and H6; while the rear carriage rail II3 supports a fixture II'I upon which a tabulating lever I I8 is pivotally mounted by a pin I19. The tabulating lever II8 carries an inturned projection I movement toward and away from the rear carriage rail II3. As viewed in Fig. 2, the tabulat-- ing lever H8 is biased toward the left by a coil spring I2I extending between the fixture Ill and the tabulating lever H0, and also in a clockwise direction about the pin II9 by an arrangement comprising a rocking lever I22 pivotally mounted by a screw I23 upon the rear carriage rail- I I3. More particularly, the rocking lever I22 rests upon a plate I24 fixed to the top surface of the rear carriage rail H3 and comprises two arms I25 and I26. The lever I22 is biased in a counterclockwise direction about the screw I23, as viewed in Fig. 2, by an arrangement comprising a coil spring I21 surrounding the screw I23 and extending between the plate I24 and the arm I26; the arm I25 of the lever I22 being provided with an upstanding projection I28 engaging a leaf spring I secured to' the adjacent end of the tabulating lever IIO. At this point it is noted thatthe arm I of the lever I22 carries an upstanding dog I30 which cooperates with a part of the paper cutting mechanism III, in a manner more-fully explained hereinafter.

Also associated with the right-hand end of the tabulating lever II8,- is a bell crank I3I pivotally supported upon the main frame IM and frame ml. The bell crank I3I may be moved against the bias of the coil spring I32 toward the end of the tabulating lever IIB, thereby to rock the tabulating lever II 8 in the counterclockwise direction about the pin IIB, as viewed in Fig. 2, under the control of a strap I33 secured thereto; the strap I33 being operated by the power roll of the machine I00 when the tabulating operating key is actuated by the associated operating magnet. Further the rear carriage rail II3 carries a latch I 34 which is pivotally mounted upon a pin I35 and biased toward an abutment I36 formed on the left-hand end of the tabulating lever II8. Further it is noted that the left-hand end of the tabulating 1 lever IIO carries an abutment I31 which also pies its right-hand marginal position, as viewed 7 from the front, as determined by the position of the righthand marginal stop I I5 upon the associated marginal stop rack II4. As the operating magnets are selectively energized the corresponding operating keys are actuated, whereby' the corresponding type levers I04 are selectively clutched to the power roll, assuming that the operating motor is running. As each type lever I04 is clutched to the power roll it is operated toward the platen roll I09 into striking engagement with the paper stock carried thereby in order to cause the associated type character to be printed thereon. The type lever is then automatically declutched from the power roll and is returned to its normal position; whereupon the carriage I03 is moved one space toward the left.

When the return and line space operating magnet is energized the associated operating key is actuated, whereby the carriage return and line space mechanism is first clutched to and then declutched from the power roll in order to cause the carriage I03 to be returned to'its normal right-hand marginal position, as determined by the position of the right-hand marginal stop I I5 upon the marginal stop rail I I4, and to cause the platen roll I 09 to be line spaced.

When the tabulating magnet is energized the associated tabulating operating key is actuated, whereby the tabulating mechanism is first clutched to and-then declutched from the power roll, whereby the strap I33 is operated in order to cause the bell crank I3I to be pivoted against the bias of the coil spring I32 into engagement with the right-hand end of the tabulating lever IIB. When the right-hand end of the tabulating lever H8 is thus depressed by the bell crank I3I the tabulating lever H0 is rocked in the counterclockwise direction about the pin H9, as viewed in Fig. 2, against the bias of the rocking lever I22. Also when the tabulating lever H8 is rocked in the counterclockwise direction about the pin Hi! the latch I34 rides behind the abutleft, as viewed from the front of the machine 4 I00. Also at this time the rocking lever I22 is rotated in the clockwise direction about the screw I23, as viewed in Fig. 2, against the bias of the coil spring I21 due to the action of the leaf spring .I29 carried by the left-hand end of the tabulating lever II8 upon the upstanding projection I28 assume 3 carried by the arm' I25 of the rocking lever I22. When the rocking'lever I22 is thus rotated in the clockwise direction the upstanding dog I50 carried by the arm.- I25 thereof is moved toward the platen roll I into cooperating relationship with respect to the paper cutting mechanism III, in a manner more fully explained hereinafter.

When the carriage I02 is moved toward the left, as viewed from the front of the machine I00, to its left-hand marginal extremity, the left-hand marginal stop I I5 carried by the marginal stop rack I I4 engages the inturned projection I25 carried on the left-hand end of the tabulating lever H0; whereby the tabulatirlg lever H0 is moved toward the right,'as viewed in Fig. ,2. When the tabulatin lever H0 is moved toward the right, as viewed in Fig. 2 against the bias of the coil spring I2I, the pin II9 permitting this movement of the tabulating lever IIO as previously noted, the latch I34 rides from behind the abutment I35 provided on the left-hand endof the tabulat ing lever I I0. When the latch I34 rides from behind the abutment I36 provided on the left-hand end of the tabulating lever II8, thereby unlatchin the same, the tabulating lever H8 is rotated in the clockwise direction about the pin II 9, as

viewed in Fig. 2, due to the bias exerted on the leaf spring IEQ carried on the left-hand end thereof by the upstanding projection I28 carried on the arm IE5 of the rocking lever I22. More particularly, the rocking lever I22 is rotated in the counterclockwise direction about the screw I23,

as viewed in Fig. 2', by the coil spring I21; where-. by the upstanding dog it0 carried by the arm' I25 of the rockin lever I22 is moved out of 00 arms I55 constitute a support for the paper cutting mechanism III and carry two screws I55 by means of which themechanism III is removably secured in place. More particularly, two aligned notches I51 are formed in the side flanges I55 of the body I 53 and receive the center portion of the supporting bracket I50, while the center portion of the supporting bracket I54 engages the rear wall of the body I55; the body I55 and the brackets I50 and I54 being removably secured in assembled relation by two screws I55. More specifically, the two screws I55 extend through two spaced-apart holes provided in the supporting bracket I50 and are threaded into aligned tapped holes provided in the supporting bracket I 54; whereby the body I52 is securely clamped between the brackets I50 and I54. Thus it will be understood that a narrow upwardly extending passage is formed between the bottom wall of the body I53 and theadjacent wall of the bracket I 50 and between the side flanges I 55 in order to receive and guide the ribbon of paper stock from the roll I60.

Further the mechanism 0 comprises a paper tensioning element I59 including a base plate I15 and a substantially L-shaped inwardly disposed leaf spring member I1I secured together by a plurality of rivets or the like H2. The lower operating engagement with respect to the paper v cutting mechanism III, for a purpose more fully explained hereinafter. At this time the return and line space operating magnet may be again energized in order to effect the return of the carriage I03 to its normal right-hand marginal extremity, in the manner previously explained.

Y a substantially horizontal and inwardly disposed wall I54. Also the body I50 comprises side flanges I55, the lower ends-of which terminate in out wardly and downwardly extending arms I55 arranged in substantially parallel spaced-apart re' lation. A shaft I51 extends through openings provided adiacentthe outer ends of the arms I55 and is provided'with removable knurled thumb nuts I50 threaded on. the opposite ends thereof; the shaft I51 being adapted to support the spool I55 of a rollof ribbon-like paper stock I50. Also a substantially channel-shaped" plate I5I is secured to the lower surface of the wall I54 by a number of rivets I 52, the plate I5I having nostanding side flanges I55. The side flanges I52 of the plate ,I5I constitute a continuation of the side flanges I 55 of the body I52; whereby a smooth guide channel is provided for the ribbon of paper stock from the roll I55:

upwardly and inwardly I55 arranged in parallel spaced-apartrelation. The

may be lifted and pulled rearwardly in order'to loosening the thumb nut I15 in an obvious I end of the base plate I10 is provided with an inwardly directed flange I13 which overhangs two aligned and spaced-apart pins I14 carried by the side flanges I55; thereby to provide a pivotal mounting for the lower end of the paper tensioning element I69. Also arearwardly extending screw I15 is fixed tothe bracket I50 and extends through an opening formed in the base plate I10; 'the opening formed in the base ,plate I15 comprising an enlarged central hole I15 and a connecting restricted slot I11. Further the outerend of the screw I 15 carries a thumb nut I15 which engages the base plate I10. This arrangement permits ready removal of the paper tensioning element I50 when the thumb nut I15 is suflieiently loosened due to the fabt that the thumb nut I18 will pass through the hole I15 formed in the base plate I10 incident to lifting of the base plate I10. More specifically, when the thumb nut I18 is loosened the base plate I15 cause the inwardly directed flange I10 to disengage the pins I14; whereby the thumb nut I15 may be passed through the hole I15 formed in the base plate I10, in an obvious manner.

Further it will be understood that the leaf spring member I" engages the ribbon of paper stock adjacent the knee between the body I55 and the wall I54, thereby to tensionthe ribbon of paper stock; the amount of tensioning thereof depending upon the pressure exerted upon the paper tensioning element I 50, which in turn may be oppositely determined by tightening and manner.

1 Referring now more particularly to Figs. 1 and 6 to 10, inclusive, of the drawings. it is noted that the paper cutting mechanism III comprises a substantially channel-shaped base 255 having downwardly turned side flanges 25I and an elongated rearwardly and downwardly extending paper chute 252 having upwardly turned side ,flaliges 202; the base 250 and the paper chute 252 being suitably secured together by rivets-or the like. The base 255 is secured tothe twoarms I55' of-the' supporting bracket" I54 by means of the two screws I55 andtwo thumb nuts254'threaded the front end of the paper chute 202 terminates adjacent the rear edge of the slot 206 formed in the base'200 and that the paper guiding struc-- ture is secured to the base 200 adjacent the front edge of the slot 206 formed therein by rivets or the like. More particularly, the paper guiding structure comprises a bottom wall 201 having a downwardly and forwardly extending lip 208 and a top plate 200-having downwardly turned side flanges 2 ID. The paper guiding structure secured to the base 200 forwardly of the slot 206 formed therein and thepaper chute 202 secured to the base 200 rearwardly of the slot 200 formed therein are arranged in alignment, whereby the ribbon of paper stock coming from the platen roll I09 of the machine I is fed through the paper guiding structure and across the slot 206 formed in the base 200 and into the paper chute 202.

More particularly, the top wall 209 and the bottom wall 201, in conjunction with the side flanges 2|0, form a narrow guide channel for the ribbon of paper stock; this channel having an enlarged receiving opening adjacent the platen roll I00 of the machine |00 due to thearrangement of the downwardly directed lip 208 carried by the bottom wall 201. Also a guide plate 2 is secured to the base 200 above the paper guiding structure by an arrangement comprising two screws 2|2 extending through holes provided in the guide plate 2 and threaded into aligned tapped holes provided in the base 200. The guide plate 2 is retained in position above the paper guiding structure due to the provision of two hollow spacing columns 2|3 surrounding the screws 2|2 and interposed between the base 200 and the guide plate 2| Further the guide plate 2 comprises a downwardly and rearwardly turned flange 2 which extends into the paper chute 202 between the side flanges 203; thereby positively to guide the ribbon of paper stock over the slot 206 formed in the base 200 and into the paper chute 202.

Further the paper cutting mechanism comprises a movable knife support 2|! including two parallel, vertically spaced-apart supporting rods 2|6 extending through two pairs of aligned holes 4 provided in the side flanges 2M 01' the base 200;

the two pairs of aligned holes provided in the side flanges 20| of the base 200 being disposed slightly rearwardly. of the slot 206 formed therein. Accordingly the movable knife support 2| 5 is slidably supported by the side flanges 20| of the base 200 slightly rearwardly of the slot 206 formed therein. The left-hand-ends of the supporting rods 2|6 are firmly clamped together by an arrangement comprising a fixture 2l1 and a late 2|8 secured together by two rivets 2l9. More particularly, the fixture 2|1 and the'plate 2|8 are respectively arranged rearwardly and for- Also the movable knife support 2|6 comprises an arrangement including two plates 22l and 222 for securely clamping together the intermediate sections of the two supporting rods 2|6. More particularly, the two plates 22| and 222 are respectively disposed rearwardly and'forwardly of the two supporting rods 2|6 and are secured together by a screw 223 extending therebetween and between the two supporting rods 2|6. The plate 222 also constitutes a first clamping jaw which cooperates with a second clamping jaw 224 to retain a knife blade 226 therebetween. More particularly, the knife blade 226 is retained securely in place between the two clamping Jaws 224 and 222 by two screws 226 extending through aligned holes provided in the two clamping jaws 222 and 224 and threading into aligned tapped holes provided in the plate 22 More specifically, the knife blade 226 occupies an inclined position, whereby the knife edge thereof extends through the slot 206 formed inthe base 200 and above the bottom wall of the paper chute 202. The movable knife support 2|6 is normally biased toward the right, as viewed in Fig. 7, by an arrangement comprising a coil spring 221 extending between the fixture 2H and the right-hand side fiange 20| of the base 200. More particularly, the fixture 2|'| constitutes a marginal stop limiting the travel of the movable knife support 2|5 toward the right due to the bias of the coil spring 221. When the movable knife support 2" occupies its fully retracted position to the right due to the resiliency of the coil spring 221, the knife blade 225 occupies a position disposed toward the right and projecting through the slot 206 formed in the base 200, as clearly shown in Fig. 6. When the knife blade 226 occupies the last-mentioned position, the movable knife support 2|! occupying its fully retracted position toward the right, the

ribbon of paper stock fed through the guide chanwardly of the two supporting rods 2|6 and the two rivets 2|9 extend therebetween and between the two supporting rods 2|6; thereby securely to clamp in place the left-hand ends of the two supporting rods 2| 6. At this point it is noted that the fixture 2| 1 carries a downwardly and rearwardly extending lug 220 which cooperates with the upstanding dog I30 carried by the arm 126 of the rocking lever I22, in a manner more fully explained hereinafter.

nel formed in the paper guiding structure across the slot 206 formed in the base 200 into the paper chute 202 is not interfered with in any way.

The knife blade 226 is readily removable from the two clamping jaws 224 and 222merely by loosening the screws 226. Preferably the knife blade 226 is of razor blade" construction, whereby it may be readily removed and disposed of when it becomes'dull; anew knife blade 226 being inserted therefor between the clamping jaws 224 and 222 and securely clamped in place by tightening the screws 226.

In view of the foregoing description of the construction and arrangement of the paper cutting mechanism ii I, it will be readily understood that the movable knife support 2 I5 is normally biased by the coil spring 221 to the fully retracted posi-. tion toward the right, as viewed in Fig. 6, whereby the ribbon of paper stock may feed without interference from the paper guiding structure into the paper chute 202. In order to operate the paper cutting mechanism I, it is only nec- .viewed in Fig. 6, the ribbon of paper stock feeding through the paper guiding structure into the paper chute 202 is severed in an obvious manner; whereby the severed strip of paper stock is free to slide down'the paper chute 202 into a suitable receptacle due to the action of gravity.

The paper cutting mechanism III is operated in a manner more fully explained hereinafter due to the cooperation between the downwardly extending lug :29 carried by the fixture 2n and the upwardly projecting dog I30 carried on the Accordingly the base 200 is moved from the right toward the left, as viewed from the front of the machine, while the movable wife support M5 is retained latched in a stationary position by the cooperation between the dog I30 and the lug 220. This moyement of the base 200 toward the left eiiectively draws the knife blade 225 across the slot 205 formed therein, whereby the ribbon of paper stock is severed in the manner explained above. 1

Referring now more particularly to Figs. 1, ll

and 12 of the drawing it is noted that the paper position testing mechanism H2 comprises a base plate 250 which is removably secured to the subframe M2 or the machine I by means of a number of screws or the like rearwardly or the casing structure we. Also the mechanism IIZ comprises electromagnetic structure including a It will be understood that when the carriage I03 of the machine I00 occupies its normal righthand marginal stop position, as viewed from the front of the'machine I00, the roll of paper I60 carried by the paper supporting and guiding mechanism H0 engages the end of the rod 266,

- thereby to move the armature 253 of the paper.

i is attracted and moved toward the core .When the armature 253 is moved toward the core position testing mechanism 2 toward the core 252. Further it will be understood that, when the winding 250 is energized, the armature 253 252.

252 the arm 260 carried thereby causes the in,- sulator 2M to control theset of switch springs 262 for signaling purposes. 7

. 0n the other hand, when the carriage I03 oi 'the machine is moved away from its right-hand marginal stop position, asviwed from the front of the machine I00, the roll of paper W0 carried by the paper supporting and guiding mechanism H0 disengages the end of the rod 20%,

whereby the set of switch springs 262 tends to move the armature 253 away from the core 252 due to its resiliency; Similarly, when the winding i is deenergized the set of switch springs 2B2 tends to move the armature 253 away from the core 252. When the armature 253 is moved away from the core 252 the set of switch springs 252- is controlled in. the opposite sense for 51gfield element .255, a core 252, an armature 253 and a winding 255 carried by the core- 252; the field element 255 being secured to the base plate 250-by two screws 255. pivotally. mounted upon a pivot .pin 25d carried by a bracket 25! which is in turn secured to the field element 25i by a screw 250. Further thebase plate 250 carries a plate 259 which is adapted to "support a removable housing, not shown, for. the mechanism H2. Further the armature 253 is provided with a rearwardly extending arm 260 which carries an insulator 268 on the outer end thereof; the insulator ,zsl cooperating with a suitable set oi switch springs 2B2 carried by the field element 2 5i,

Further a bar 250 is secured to the armature 253 by two screws 254and is provided with an elongated slot 255 in the upper end thereof. The upper endof th: bar 203 carries a paper roll contact rod 256 which extends through the slot 265 formed therein and is threaded into a tubular member 25?. Also a lock nut 268 is threaded upon the rod 255. The arrangement above de scribed permits ready adjustment of the rod 208 in the vertical direction toward and away from the endo! the bar 253;, also this arrangement permitsready adjustment of the end of the rod 266 toward and away from the bar 263, Accordingly the rod 208 may be readily adjusted toward and away from the axis of the shaft I57 supporting the roll of :paper I00 in order to adjust the mechanism II2 to diflerent sizes of cores.

of spools upon which the roll or paper I60 is wound. Also the rod 200 may be readily adjusted toward and away from the end of the paper roll I00 in accordance with the normal right-hand marginal stop position of the carriage I00 of the machine I00 as determined by-the position or the ri ht-hand marginal stop H0 carried by the marginal stop rack H0.

The armature 2501s 7 naling purposes. Thus it will be understood that, when the winding 25% is energized or the roll of paper I engages the rod 266, the armature 253 is moved toward the core 252; and that, when the winding 25% is 'deenergized and the roll of paper I60 disengages' the rod 266, the armature 253 is moved away from the core 252; whereby the set of switch springs 252 is'selectively controlled.

During the operation of the machine E00, when the carriage I08 thereof occupies its normal right-hand marginal stop position, as viewed from the front of the machine M30, and there is ample paper stock upon the paper roll M0, the rod 260 is engaged, thereby to move the armature 253 toward the core 252. When the machine I00 is seized 'for use the winding 25% is energized thereby to retain the armature 258 attracted toward the core 252. Subsequently, after the complete operation of the machine we, the carriage I03 thereof is operated toward'its right-hand marginal stop position. and the winding 250 is deenergized. At this time the armaquent reoperation.

ture- 250 remains in its. position adjacent the 0 core 252 only in the event that the carriage 903 of the machine I00 is moved fully to its right== hand marginal stop position andin the additional event that there is adequate paper stock upon the roll I00 in order to engage the rod 266. Hence it will be understood that, at the conclusion of the operation of the machine I00, in the event the carriage I03 thereof is not returned completely to its right-hand marginal stop positionor there is inadequate paper stock upon the roll I60, the rod 200 is not engaged and the armature 203 is moved away from the core 252; whereby a suitable signal is controlled in order to indicate that one of the conditions mentioned above exists and that the machine I00 is accordingly not in readiness for subse- Again considering Figs. 1 and 10 of the drawings, it is pointed out that, in the machine I00, the ribbon of paper stock extends from the roll no rotatably supported by the shaft I51, forming a part of the paper supporting and guiding mechanism IIO, up through the guide channel formed between the supporting bracket I50 and the upstanding channel-shaped body I53 and then in a substantially horizontal direction across the horizontal wall I54 to a horizontal transversely extending paper guide 300 incorporated in the structure of the carriage I03. The ribbon of paper stock continues from the paper guide 300 between the platen roll I09 and a horizontal transversely extending pressure roll 30I, incorporated in the structure of the carriage I03, and thence around the platen roll I09 and between the platen roll I09 and a horizontal transversely extending paper shield 302. The paper shield 302 is suitably secured by a series of rivets 303 to a paper guide 304 incorporated in the structure of the carriage I03. Also it is noted that the paper shield 302 has an elongated slot 305 formed therein, whereby the surface of the paper disposed below the slot,305 is adapted to be contacted by the type levers I04. The tension exerted upon the ribbon of paper stock feeding from the roll I60 and between the platen roll I09 and the pressure roll 30I may be adjusted by tightening or loosening the thumb screw I18 in order to cause the leaf spring member I'II to exert more or less pressure upon the ribbon of paper stock. as it passes over the knee disposed between the upstanding channel-shaped body I53 and the horizontal wall I54, in the manner previously explained. After the ribbon of paper stock passes between the paper shield 302 and the platen roll I09 it extends into the paper, guiding structure, forming a part of the paper cutting mechanism III and including the bottom wall 201' and the top wall 209, and over the slot 206 formed in the base 200 into the paper chute 202. The strip of the ribbon of paper stock,extending beyond the slot 206, formed in the base 200, and into the paper chute 202 may be readily severed by operating the paper cutting mechanism III, in the manner previously explained, whereby the severed strip of the ribbon of paper stock may slide down the downwardly and rearwardly inclined paper chute 202 into a suitable receptacle. At this point it is noted that the guiding surfaces of the paper supporting and guiding mech-' anism I I0, as well as the guiding surfaces of the paper cutting mechanism II I, are highly polished in order to minimize the frictional drag exerted upon the ribbon of paper stock passing thereover. Also the interior surface of the paper chute 202', forming a part of the paper'cutting mechanism III is highly polished, whereby the strip of severed paper stock may slide down the inclined paper chute 202 due to the action of gravity and be received by a suitable receptacle.

At this point it is noted that both the shaft I 51, forming apart of the paper supporting and guiding mechanism H0, and the paper chute 202, forming a part of the paper cutting mechanism III, are disposed rearwardly of the rear wall of the subframe I02. More particularly, the arms 159 of the paper supporting and guiding mechanism IIO, which support the shaft I51, extend through a rectangular opening 306 formed in the rear wall of the subframe I02; the opening 306 formed in the rear wall of the subframe I02 extending transversely thereacross a distance sufficient to accommodate the normal travel of the carriage I03 of the machine I00. The paper chute 202 of the paper cutting mechanism III extends over the rear marginal edge of the main frame I0 I whereby the receptacle which is adapted to receive the severed strips'of the ribbon of paper stock may be disposed rearwardly and clear of the machine I00.

- Considering now the operation of the tabulating mechanism incorporated in the machine I00 in conjunction with the operation of the paper cutting mechanism I II, reference is again had to Figs. 1 to 3, inclusive, and 6 to 8, inclusive,

. of the drawings. At the conclusion of a complete printing operation of the machine I00 the carriage I03 occupies a position displaced from the right-hand marginal stop position thereof, as viewed from the front of the machine I00, corresponding to one space beyond the last character printed upon the last line of the section of paper stock appearing in the slot 305 formed in the paper shield 302, as will be readily underthe printing matter appears is fed from between the paper shield 302 and the platen roll I09 through the paper guiding structure, forming a part of the paper cutting mechanism III, and

beyond the slot 206 formed in the base 200 and into the paper chute 202. At this time the carriage I03 of the machine I00 occupies its normal right-hand marginal stop position and the tabu.. lating operating magnet is energized, whereupon the carriage I03 is automatically moved from its right-hand marginal stop position to its left-hand marginal stop position.

More particularly, when the tabulating mechanism incorporated in the machine I00 is thus operated, the rocking lever I 22is rotated in the clockwise direction about the screw I23, as viewed in Fig. 2, by the operation of the tabulating lever II 8, and the tabulating lever H8 is restrained in its operated position by the latch I34, in the manner previously explained. When the rocking lever I22 is rotated in the clockwise direction about the screw I23, as viewed in Fig. 2, the dog I30 carried by the arm I26 thereon is moved forwardly toward the platen roll I09 and into such a position that it is disposed in the path of movement of the downwardly projecting lug 220 formed.

on the fixture 2II carried on the left end of the movable knife support-2I5, as shown in Fig. 6. As the carriage I03 moves toward the left, the lug 220 hangs upon the dog I30, whereby further movement of the knife lupport 2| 5 is arrested. However, the carriage I I3 continues to move toward the left, whereby the remainder of the cutting mechanism HI, including the base 200, is moved therewith. When the base 200 is thus moved toward theleft, while the knife support 2I5 is held in a stationary position, the knife blade 225 is effectively drawn through the slot 206 formed in the base 200, whereby the section of the ribbon of paper stock disposed beyond the slot 206 and in \the paper chute 202 is severed. The last-mentioned section of the ribbon of paper stock includes the matter printed thereupon due to the last operation of the machine I00. Accordingly, the severed strip of the ribbon of paper stock including the printed matter, due to the last operation of the machine I00, comprises a ticket which slides down the paper chute 202 into a suitable receptacle.

Subsequently, when the carriage I03 is completely returned to its left-hand marginal stop position the tabulating lever H8 is released due to its movement with respect to the pin H9; whereupon the latch I34 rides from behind the abutment I36 provided on the left-hand end of the tabulating lever H8, in the manner previously explained. At this time, when the tabulating lever- H8 is released, the rocking lever I22 is rotated in the counterclockwise direction about the screw I23, as viewed in Fig. '2, by the coil spring I21, whereby the upstanding dog I30 provided on the arm I26 disengages the downwardly extending mg 220 carried by the fixture 2H. forming a part of the movable knife support 215. When the dog I30 disengages the lug 220 the knife support 2l5 is released and is-retumed toward the left to its normal position, as shown in Fig. 6, due to the resiliency of the spring 2217. At this time, the paper cutting mechanism III has completed its operation and occupies its normal position. The return and line space operating magnet is then energized in order to cause the carriage M3 to be returned to its normal knife normally movable with said carriage and slidably supported for lateral movement with respect thereto, and means for arresting move- ,ment of said slidably supported knife with re-=-- spect to said carriage and for effecting movement of said carriage, whereby the section of said base member carried by said carriage and having a laterally extending slot formed therein across which the section of said paper stock upon which the printing appears is fed, a knife normally movable with said carriage and slidably mounted thereon for, lateral movement in s id slot, and means for restraining further move ent of said knifewith respect to said carriage-to efiect latright-hand marginal stop position. At this time the machine it is completely released Land is available for further use for the next printing operation. v

The operation of the paper position testin mechanism H2 incident to the operation of the machineiflt is fully described above, and in the interest of brevity is not again repeated. 1

While one embodiment of the invention has been disclosed, it will be understood that various modifications may be made therein which are within the true spirit and scope of'the invention.

What is claimed 1. A business machine comprising printing mechanism, means for supporting a supply of paper stock, a movable carriage operative to position a. section of said paper stock in printing relation to said printing mechanism, a cutter operative to cut oii the section of said p p r stock upon which the printing appears, tabulating mechanism operative to control the'movement of said carriage, and means controlled by the operation of said tabulating mechanism for operating said cutter.

2. A business machine comprising printing mechanism, 'means forsupporting a supply of paper stock, a movable carriage operative to position a section of said paper stock in printing relation to said printing mechanism, a cutter operative to cut off the section of said paper stock upon which the printing appears, tabulating mechanism operative to. control the movement of said carriage, and means controlled jointly by the operation of said tabulating mech anism and the movement of said carriage for operating said cutter.

3. A business machine comprising printing mechanism, means for supporting a supply of paper stock, a-iaterally movable carriage operative to position a section of said paper stock in printing relation tosaid printing mechanism, a

- knife normally movable with said carri age and slidably supported thereon for relative lateral movement with respect thereto, whereby the section of said paperstock upon which the printing appears is cut on, and means for eflecting relative lateral movement between said carriage and said slidably supported knife. I

4. A business machine comprising printing mechanism, means for'isupporting'la supply of paper stock, a laterally movable carriage operative to position a section 'of said paper stock in printing relation to said printing mechanism, a

era'l movement of said knife in said slot, where by the section of said paper stock upon which the printing appears is cut 01?.

6. A business machine comprising printing mechanism, means for supporting a supply of paper stock, a laterally movable carriage operative to position a section of said paper stock in printing relation to said printing mechanism, a knife carried by said carriage and supported for lateral movement with respect thereto, and tab plating mechanism operative to effect lateral movement of said carriage and to arrest lateral movement of said knife, whereby the relative lateral movement between said carriage and said knife is effective to cut off the section of said paper stock upon which the printing appears.

7.. A business machine comprising printing mechanism, means for supporting a supply of paper stock, a laterally movable carriage operative to position a section of said paper stock in printing relation to said printing mechanism, a knife carried by said carriage and supported for lateral movement with respect thereto, a lever operative to latch said knife against lateral movement with said carriage. and tabulating mechanism operative to effect lateral movement of said carriage and to operate said lever, whereby the relative lateral movement between said carriage and said knife is effective to cut ofl the section of said paper stock upon which i the printing appears.

8. A business machine comprising. printing mechanism, means for: supporting a supply of paper stock, a laterally movable carriage operative to position a section of said paper stock in printing relation to said printing mechanism, a knife carriedby said carriage and supported for lateral movement away from a normal posi= tion with respect to said carriage, a lever operative away from a normal position to latch said knife against lateral movement with said car= riage, tabulating mechanism operative to effect lateral movement of said carriage to a tabular stop position and to operate said lever away from its normal position, whereby the relative lateral moveme'ut'between said carriage and said knife is effective to cut oil the section of said paper stock leased, and means controlled when said knife is released .for, returning it to its normal position.

9. A business machine comprising printing mechanism; means for supporting a supply of paper stock; a laterally movable carriage including a rotatable platen roll and operative to position a section of said paper stock in printing relation to said printing mechanism; cutting mechanism normally movable with said carriage and including paper guiding structure adapted to receive the section of said paper stock upon which the printing appears from said platen roll, a paper chute adapted to receive the section of said paper stock upon which the printing appears from said paper guiding structure, and a knife normally movable with said carriage and slidably supported for lateral movement relative to said carriage between said paper guiding structure and said paper chute; and means for restraining normal movement of said knife with respect to said carriage to effect relative lateral movement of said knife between said paper guiding structure and said paper chute, thereby to cut of! the section of said paper stock upon which the printing appears disposed in said paper chute.

10. In a typewriting machine, a movable carriage, a suply of paper stock carried by said carriage, a roller carried by said carriage for feeding said paper stock into typing relation of said machine, a normally ineffective paper cutter carried by said carriage as said carriage is moved back and forth to position said paper in typing relation to type one or more lines, and means operated at times for preventing movement of said cutter as saidcarriage'is moved in one direction whereby a portion of said paper stock containing one or more lines of typing is severed from said supply as the carriage is moved in said one direction. o

11. In a typewriting machine, the combination with a movable carriage of a support for a supply of paper stock, a paper guiding structure adapted to receive the paper stock fed from said supply, and a knife slidably mounted on said section of said paper stock in printing relation to said printing mechanism, a cutter mechanism supported by said carriage and movable there with, a normally ineffective knife mechanism slidably mounted on said cutter mechanism,

means normally positioned out of the path of movement of said knife mechanism whereby one or more lines may be printed on said paper stock without severing said paper from said supply, and means for at times positioning said last mentioned means in the path of movement of said knife mechanism, whereby said slidable knife mechanism is restrained in a stationary position as said carriage moves said cutter mechanism across said knife to sever a portion of said paper stock, upon which the printed matter appears, from said supply.

13. In a business machine comprising a printing mechanism, a carriage, a slotted paper guide rigidly supported upon said carriage, a knife slidably supported upon said paper guide and extending through said slot, a supply of paper stock supported upon said carriage, means including said carriage for positioning a section of said paper in printing relation with said printing mechanism and for feeding said paper stock past said slot each time a line is printed upon said paper, and means operated at will for restraining the movement of said knife with respect to said paper guide whereby said knife is effective to sever the printed portion of said paper stock from said supply as said slotted paper guide is moved with said carriage across said knife.

14. In a typewriting machine, a paper supply, a movable carriage operative to position a section of said paper in typing relation with said typing machine whereby one or more lines may be typed upon a'section of said paper, a cutting mechanism slidably mounted upon said carriage and normally movable therewith, a tabulating mechanism at times operative to cause said carriage to move in a predetermined direction, and means controlled responsive to the operation of said tabulating mechanism for causing said carriage to move in said predetermined direction and for simultaneously locking said cutting mechanism against movement whereby a section of said paper upon which one or more lines of typin appears is severed from said paper supply.

15. In a typewriting machine, a base, acarriage movably mounted on said base, a paper supply mounted on said carriage, means controlled by said carriage for positioning said paper in typing relation with said machine, a knife slidably mounted on said carriage and normally movable therewith, means on said base operated at times to prevent said knife from moving with said carriage and for simultaneously initiating movement of said carriage in a predetermined direction whereby a section of said paper upon which one or more lines of typing appears is severed from said paper supply.

JOHN n os'rnmn.

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