US1225669A - Printing-press sheet-delivery mechanism. - Google Patents

Description

Patented May 8, 1917.'

6 SHEETS-SHEET I.

INVENTUM.

C. A. McCAIN.

PRINTING PRESS SHEET DELIVERY MECHANISM.

APPLICATION FILED JAN. 8. 1916A 1,225,669,

nu unam. anni sa.. mmurno. unnuncmn. n c.

C. A. IVICCAIN.

PRINTING PRESS SHEET DELIVERY NIECHANISIVI.

APPLICATION FILED IAN. B. 1916.

Patented May 8, 1917.

6 SHEETS-SHEET 2 g INVENTOR.

i @NNNNNNNNNMNNNNNMNNNNNNNNNMN Film?V C. A. MCCAIN. PRINTING PRESS SHEET DELIVERY IVIECHANISM.

Patented May 8,1917.

' 6 SHEETS-SHEET 3.

`APPLICATION FILED IAN. 8. 1916.

INVENTUM C. A. IVICCAIN.

PRINTING PRESS SHEET DELIVERY NIECHANISIVI.

APPLICATION FILED IAN. 8, |916. ,225,669 Patented May 8, 1917a 6 SHEETS-SHEET 4.

C. A. IVICCAIN. PRINTING PRESS SHEET DELIVERY MECHANISNI.

APPLICATION FILED IAN.8, 1916.

Patented May 8, 1917.

6 SHEETS-SHEET 5.

C. A. MCCAIN.

PRINTING PRESS SHEET DELIVERY MECHANISM.

APPLICATION FILED IAN.8.19I6. ,225,669 Patented May 8, 1917.

6 SHEETS-SHEET 6.

l @Enh ENVENTR.

evans A. MCCAIN, or Sansoni-:unse NEW Yoan.

PRINTING-PRESS SHEET-DELIVERY MECHANISM.

Specification of Letters Patent.

Patented May 8, i917.

Application led January 8, 1916. Serial No. 71,689.

Be it known that I, (lvnUs A.. McCAiN, a citizen of the United States, residing at Bensonhurst, in the county of Kings, State of New York, have invented certain new and useful Improvements in Printing-Press Sheet-Delivery Mechanisms, of which the following is a specification. l

rlhe present invention relates to sheet delivery mechanisms for printing presses. Its several 'features are capable of use in many relations and upon presses of many difierent types but, as illustrative, l have chosen to embody them in a flat bed cylinder printing press, that is, a press of the type in which a reciprocating type bed cooperates with an impression cylinder. ln such flat bed cylinder presses provision is commonly made for giving either a fly delivery or a face-up7 or reciprocating delivery. The fly delivery is produced by Hy sticks or lingers which engage the under side of the sheet and by rotation about one end convey the sheet with a sweep through the air and deposit it reverse side up upon the piling table, and the latter or reciprocating delivery is brought about by a sheet carrier which engages the under side ot' the sheet and conveys it longitudinally to a position above the piling'table and deposits it thereon printed side up.

rl`he principal objects of the invention are to provide an improved mechanism 'for carrying and depositing the sheet in the taceup or reciprocating delivery by which sheets oi different sizes, weights and thicknesses may be handled with equa-l facility and efficiency; to provide improved mechanism for gripping the sheet, preferably at its front or forward edge, and holding it as it is being conveyed by the reciprocating delivery mechanism; to provide improved constructions of parts by which the changing over from one style oi del iveru to the other may be readily accomplished; and to provide ar improved arrangement of parts by which the various parts oi the delivery mechanism may be raised up and held in elevated position for the purpose oi" enabling the inlring rollers and other parts beneath the delivery mechanism to be properly washed, inspected and removed or replaced.

With these ends in view, my invention consists in certain features of novelty in the construction, combination and arrangement oi parts by which the said objects and certain objects hereinafter appearing are attained, all as fully described in the specilication, shown in the accompanying drawings, and more particularly pointed out in the appended claims. j

In said drawings, Figure l is a side elevation of a portion of a two-revolution cylinder printing vpress equipped with my improved sheet delivery mechanism, the main conveyer, the piling table and other parts being shown elevated so as to give ready access to the parts beneath; Figs. 2 and 3 are plan views of right and left hand portions, respectively, oli' the delivery mechanism; Fig. l is a side elevation of a portion of the delivery mechanism, parts being broken away and other parts shown in section, the plane of section being indicated by the line l-l of Fig. 3; Fig. 5 is a detail elevation of a portion ot the reciprocating carriage and a supporting way-bar, partsbeing shown in section taken on a plane indicated by the line 5-5 olf Fig. 9i; lig. 6 is a similar view illustrating the parts in a difieren-t position and at a different point upon the carriage way-bar, the section 4in this case being upon a plane indicated by the line GHG oi Fig. 2; Fig. 7 is a side elevation of the. carriage and way-bar, showing the parts in their sheet receiving position association with the conveyer from which the sheet is received by the carriage; Fig, 8 is a similar elevation ot the carriage viewed at its delivery position upon the way-bars; 9 is a view similar to Fig. 7, showing the carriage as it approaches the receiving position; l() is a transverse view with parts in section, illustrating the mechanism for providing a connection between the main conveyer trame and the carriage actuating by which the conveyer is held in elevated position, as illustrated in Fig. l; Fig. ll is a detail plan view 'oie `the spring roller oit the carriage mechanism and associated parts of the carriage and way-bars upon which the carriage travels.l parts being shown in section taken on a plane indicated by the line ll-ll of Fig. l2; Fig. 12 is a view illustrating a por.-

tion of the delivery carriage in section taken on a plane indicated by the line 12-12 of Fig. 9; Fig. 13 is an elevation of a portion of a tape-holding bar; Fig. 14 is a similar view of a tape-holding spring roller; and Fig. 15 is a transverse section of the same taken on a plane 'indicated by the line 15-15 of Fig. 14. Throughout these views like characters refer to like parts.

Referring to the drawing in detail land keeping in mind that the parts occupy the dotted line positions ofFig. 1 when they are in operative position, 20 designates the feed table upon which the sheets are piled and from which they are fed tothe impression cylinder 21 which is mounted in any suitable manner in the frame 22. ldlhen fed to the cylinder the sheet is carried around by it in order to receive the impression and it is then stripped from thecylinder by suitablestrippers which guide it upon the conveyer tapes 23 of the main conveyer 24. These tapes convey the sheet to a point directly aboverthe fly fingers 25, or into position to be engaged by the stop fingers 26 and gripper fingers 27 of the Ygripping mechanism of the carriage 2S. If the fly delivery mechanism is in operation, the fingers 25 will be rotated about their shaft 29 to carry the sheet with a sweep through the 'air intoposition upon the piling table 30 which is shown in Fig. 1 in dotted lines, in its' proper operative position, thereby de- Y livering the sheet reverse side up; If the reciprocating or face-up delivery is used, then the carriage 28 is moved along the waybars 31 to carry the sheet printed side up into position to deposit it upon the piling table 30. Y

The impression mechanism, indicated' by the link 32 connecting a driven rock arm 33 with an eccentric rock arm 34 mounted to actuate the journal box 35 of theimpres'- sion cylinder, forms no part of the invention claimed in the present application, but constitutes part of van impression mechanism which I have disclosed and' claimed in a i, companion application Seriall No. 70411,

1 filed Januar-y 5th, 1916. Obviously any Vsuitable impression mechanism may be empl'oye'd. Likewise, thegripper and guiding Y Vmechanismfor the impression cylinder, in-

dicated .byV theguide fingers 36 and' 37 mounted upon the guide frame 38, form'no Vpart of the present invention but are set forth and claimed in a companionv applicaa tion Serial No. 71705, filed January12th,

. 1916. Any-other suitable gripper and guiding mechanismV mightbe equally well em-V ployed. Likewise, any suitable strippers, for example such as shown in Miehle Pat- Aest No. 610,491, message. 6,-1s9amy be employed.

The main conveyer 24 includes sidebars means,y such as the bolts 41. The plates 40 are provided with bearings for' a*V transverse tape shaft 42 upon which the tape wheels 43 of' the' main con've'yer 24 aresecured. Corresponding tape wheels are positioned upon a shaft 44 extending between the end members of the guide frame 38. The tapes 23 pass over these tape wheels in the usual manner and the shaft 44 is suitablydriven in the well-known manner from the impressionk cylinder 21. Theplate 40 is adjustable, relative to the side bars 39 in order to provide for the taking up of any slackness in the tapes 23. rEhis adjustment is j )referably accomplished byextending p through slotted 4openings 45 vin, thel plates 40 intothreaded engagement with threaded holes in the b ars 39 and by further provid-V the bolts ,'41 Y esYV sion 4S of the plate 40. These adjusting screws 'bear` against the ends of the, corresponding side bars 39. Lock-nuts 49 serve to hold the screws 46 in adjusted position with the requisite tension upon the tapes 23.

In order to support` the main conve-yer frame 24 in its normalposition, the plates 40 are provided with extensions 50 which rest upon adjustable studs 51wl1icharerespectively screwed into threaded openings in bars 52 which extend inwardfrom the' delivery frame extensions 53 of the main frame 22. The studs 51Y are provided with loc rnuts 54-by which they may be held in adj usted position.

The y fingers 25 are secured-to iiy shaft with a projection 58. The fingers 25 are se- Y cured to the upper faces of these projections by any suitable means, such asthescrews 59. For convenience of assembly,the shaft 29 is divided4 into three parts which are connected togeth'errby" any suitable means,

as bolts 60 whichlextcnd through overlap-M ping offset portions lof the abuttingV shaft sections. As before Ypointed out, the fiy fiiigers convey the-sheet to the Vpiling table Y by a sweep of about 180 degreesV about the shaft 29. -n order tolimpart a proper oscillatory movement to the shaft for this Y' Y Vico purpose, the latter VisV provided with a toothed gear segment 61 .which coperaties*l with a reciprocating rack 62 which 4forms Y an extensionof the bar 63 which is piYoted to the upper end of ,ani arm 64which is in turn pivoted to the mam frame. The armV G/l carries an anti-friction roller 65 which runs against the peripheral face of a cam (56 mounted on a driving shaft 67. The bar 63 is moved in one directionby the cam and in the opposite direction by a coiled spring 68 which surrounds it and bears at one end against a collar 69 upon the bar 63, and at the other end against a sleeve 70 which is pivoted at 71 to the frame extension 53 and constitutes a housing for holding the rack (S2 in engagement with the toothed segment 6l. rlhe sleeve 70 is provided with a guard 72 which surrounds the segment 6l, in order to prevent injury to the operator. The collar 69 is adjustable upon the bar G3 and may be held in its adjusted position by means of a set-screw 7 3. |llhe V[ly delivery fingers and the associated mechanism for actuating them are similar in arrangement and construction to the mechanism for the same purpose disclosed in the aforesaid Miehle patent and are of themselves old and form no part of the present invention except as they may do so in combination with portions of the reciprocating delivery mechanism. Since the lly delivery mechanism is to be thrown out of operative condition when the reciprocating delivery mechanism is in operation, I provide a locking arm 74 pivoted to the main frame and adapted to engage with the roller stud 65 on the pivoted arm 64 to hold the roller out of the line of movement of the surface of the cam 66. N hen the locking arm is thus latched to the arm (64, the ily fingers lie below the level of the upper or conveying portion of the tapes 23 and by reason of their relative arrangement upon the shaft 29, they extend between the different tapes of the main conveyer. ln order that the fly fingers may be moved independently of the toothed segment 61 and the associated rack 62, I mount the segment 6l so as to rotate freely upon the shaft 29 and lo the outer end of the shaft secure an arm 75 which is keyed to the shaft so as to rotate with it. rIhis arm carries a sleeve in which is located a spring-pressed pin 7G which is yieldingly forced inward toward the segment 6l. The latter is provided with a suitable opening into which the pin 76 may pass to lock the arm 75 and segment 61 together so that the latter will rotate with the sha ft. By removing the pin 76 from its hole in the segment (il, the shaft 29 and the connected fly sticks may be readily moved to any desired position, as for example that illustrated in Fig. 1.

vThe way-bars 3l of the reciprocating delivery mechanism are secured to the delivery frame extensions 53 by any suitable means, such as the bolts 77, and they extend outward in the direction of the piling table and in substantial alinement with the side frames of the press. The carriage which rides upon these way-bars consists of carriage frames 78 and 79 and transverse connecting shafts S07 Sl and 82. The shafts S0 and S1 carry the stop lingers 2G and the coperating gripper fingers 27, and the shaft 82 carries a spring roller 83. Each carriage frame is provided with two flanged wheels 84e which are suitably journaled upon studs 85 whicl extend laterally from the frame. rllhese studs S5 are held in their frames by bolts 85 and are positioned so that the wheels 3ft may travel upon the associated way-bar 3i. 'l1 he transverse rod 80 is journaled at its ends in the carriage frames 78 and 79 so as to rotate therein. The rod Sl, on the other hand, is journaled at its ends in arms 86 which are fixed to the shaft 82 by one or more set screws 82a rlhe latter is provided at its ends with anti-friction rollers ST which are adapted te engage the under side of strips 8S secured to the inner sides of the waybars 3l. rllhe transverse shaft 82 is journaled at its ends in depending arms S9 of the carriage .frames T8 aud if) and held from rotation therein by one or more setscrews ill). A spring 9i surrounds the shaft S2 and is arranged to engage the shaft at one end and the surrounding spring roller 83 at the other, so as to yieldingly hold the latter in a given position but to allow it to be wound up and energy thereby stored up in the spring. rThe anti-friction rollers 3? by engaging the under side of the strips 8S prevent the carriage from leaving the waybars.

The spring roller S3 is provided with a plurality of tapes 91?; vhich are secured at one end to the exterior of the roller and at the other end to a fixed. bar 93 which is lo cated adjacent to the point at which the gripper-s of the carriage receive the sheet from the main conveyer tapes he bar 93 is provided at its end with hol-es through which vertical pins Sl are adapted to pass, and set-screws 95 are tareadcd through threaded openings in the ends of the bar into setting engagement with the pins 9st so as to hold the bar 93 firmly in position. The pins Qlt extend upward from projections Q6 upon cellars 97 which are sleeved upon the shaft and held in position by setscrews 98. As the carriage mores back and forth upon the 'way-lru-s 3l, the tapes 92 wind en and of of the .spring roller. These tapes may be of any suitable fabric or flexible material and may be of any width su ,il to the dimensions and locations of the cooperating parts.

ln order to actuate the stop fingers 2G and the gripper' fingers 2T, the "n 8l of the carriage are respect lv provided with cranlr arms 99 100 which are arranged to extend in the directions illustrated and to have their ends connected by a link ifls 30 and n 101. By reason ofthe relation of the arms 09 andv 100 and the link 101, thatrotary movement ofthe sha-ft 80 which would tend to lower the stop finger 26, causes-a movement of the shaft S1 which will raise the gripperfinger27. In other words, a rotation of shaft S0 in one direction causes a rotation of shaft 81 in the opposite direction.` ln or der to rock the shaft 80 lto bring about this approach and separation of the lingers 20 and 27, the shaft 80 is provided with anarm 102 which is pivotally connected atits free end to the reciprocating rod 10B, which passes through a: guiding aperture in lug 1011 upon the carriag J frame 79, the arm 102 being located upon the shaft 80 at a point adjacent to said frame. A spring 105 is coiled about the rod 103 and abuts at one end against the projection 1011 and at theothcr end against a collar 106 located upon the rod and adjustable thereon to vary the compression of the spring 105. 'l` he arm 102 and rod 105 with their associated )arts constitute a spring-actuated toggle which tends to hohl the shaft either' in the position of l? 5 or in that of Fig. 6. To provide for adjusting the movement of the flngers26 andV by this toggle mechanism, the hub of the arm 102 which is sleeved upon the shaft'807 is providedwith a set-screw 107, by which the positionofthe arm relative to the shaft may be varied. rllhe stop fingers 26 are also arranged so that they may be adjusted. with reference to the shaftBO and for this purpose each finger is provided with a collar or hub 10S which issleeved upon the shaft Y 80 and held in the desiredangular position bymeans of a set-screw 109.

' ln operation the fingers 26 and 27 of the gripping mechanism are brought into sheet engaging position at one end of the movement of the Vcarriage and thrown out of that position at the other end of the carriagel movement. 1n other words, as sheet 110 is engaged bythe gripping mechanism when the carriage is adjacent to the main Aconveyer 2d and remains in such engagement until the advancing carriage brings the sheet to its final position and thenthe lingers 26 and 27 are openedl and remain openl until the returning carriage again reaches a position adjacent to theconveyer. ln order Vto bring about these operations 'of the gripping lin- ' y gers 26 and 27, and the corresponding actuations of the toggle mechanism, theshaft 80 is provided at that end which is adjacent YYYto the carriageframe78, with acam mem- V ber 110 having a cam finger 111 and a camV face 111i1k and shoulder 112. VThe camV member 110a is positioned upon the shaft 80 and held in adjusted position Vby means of a setscrevv 113. The adjacent way-'bar 31l is pro-v vided with a Vpin 114: whichvextends jlaterally from it into thev pathofV movement Vof the cam finger 111s0 as to engage it as-tho carriage moves toward the conveyor, and, by raising it, rock the shaft S0 to bringhthe gripper fingers v26 and 27 towardeachother, the toggle members 102v and 105 serving to bring about this positive Vaction-in the way before explained.v Sinceit is not desired to bring. these. fingers into close engagement until a sheet 110 has been brought against the down-turned end ofthe finger 26 in the Vway illustrated iny Fig. 7 provision is made for limiting, thismovement of the fin-V gers toward each other until ample time has been' allowed for the delivery of` a sheet fromthe conveyor; tapes 23 tothe position of the sheet 110'of Fig. 7. This limitingV action is brought about by astop armor linger 115 secured to shaft 80 and. coperating'with a ledge or camv116 positioned upon the way-bar 31 adjacent tothe carriage frame 79. This ledge 116 lies adjacent to the delivery end of the conveyer tapes 23 and extends only a short distance therefrom. ldlhile the finger 115 is in engagement with the ledge 116, the gripper lingers 26 and 27 occupy the position shown in Fig. 7, and by reason of. the greater-speed ofthe tapes 23 compared with the speed of the carriage as it begins its movement away from them,

When the carriage has advancedthe full lengthV of its stroke away from the main con- Y veyer-2t, thef shoulder 112I of the cam member 110e is engaged by a. spr-ingrpressed .latch 117 .located upon the adjacent waybar 31 at a point adjacent toits outer end,

Vas clearly illustrated in Fig. 1.v rlhis latchV V11.7 is inclined at one side so as tobe depressed by the facelllaM of the cam member 110e as the Vlatter advances.Y At the. other side thelatch is squared so as to engage the lesl shoulder: 112 ofthe cam member 110a to rock the shaft 80'in. a directionf to separate Vthe gripper fingers 26 and 27'from: each other as soon as the carriage startsV upon. its return movement."A Thisv action frees the sheet 110. Y

VVThe cam member 11021* is provided with anV upward. projection V116 having upon its vupper edgeV a nub 119 which` co-acts with; a de-V pression in a leaf-spring 120'whichV is suitably secured-at one end to a bracket121V uponV the carriage frame `member 7 8. The VengagementY of the `nub 119V Ywith the de-Y pression in the spring. tendsl to hold' the cam member110"- in the position` illustrated infFigfQ during VVthe return movement' of VY'the Vcarriage Vand to hold the Cam: member in Y i Y substantially the position illustrated in Fig. 8 during the advance movement of the carriage.

1t will be observed that as the carriage moves forward, the tapes 92 which are associated with the spring roller 83, will be unwound from said roller, and that as the carriage returns toward the main conveyer, they will be wound upon it. 1n this way, the tapes 92 support the sheet during the advance of the carriage and then are removed from beneath the sheet as the carri age recedes, thereby leaving the sheet free to drop or settle upon the piling table 30. 1t will be noted that as the tapes 92 withiglraw their support from the sheet 110, they do so without exerting any pull or drag upon the sheet. rilhis is an important and distinguishing feature of my invention.

1n order to reciprocate the carriage 28, 1 provide two delivery connecting rods 122 which are connected at one end to the carriage and at the other end to delivery arms 123 which are keyed to a transverse shait 1211 having bearings in the delivery frame extensions One of the connecting rods 122 is connected to the carriage frame 78 and the other is similarly connected to the carriage frame 79. 1n providing for this connection, a pin 125 is secured to the forward end of the rod 122 and extends laterally therefrom into a. bearing 126 formed upon the upper' portion of the carriage 'frame and having a longitudinal slot 127 through which the pin may be moved into its final position. A Cotter pin 128 or other suitable means mayI be employed for holding the pin 125 within the bearing 126. To prevent undue shifting, the pin 125 is provided with a collar 129 which engages one end of the bearing 126. With this construction the connecting rod may be readily removed rom its bearing by simply Withdrawing the cotter pin 128 and then withdrawing pin 125 upward through the slot 127 of the bearing 126. The pin 125 eX- tends far enough beyond the collar 129 so as to rest upon the upper edge of the adjacent way-bar 31 when it has been removed from the bearing 126 in the manner just described and when the carriage has been moved ont of the way.

At this point it may be mentioned that when the carriage 28 is to be removed from the way-bars 3 1 for the purpose of operating the Hy delivery, it is only necessary to remove the pins 125 from their bearings in the way just described and, in addition, to loosen the set-screws 95 in the ends of the bar 93, to which the tapes 92 are secured, and lift the bar 93 from its pins 94 and allow the spring roller 83 to wind up the tapes and draw the bar 93 into the vicinity or' the roller 83. Then these steps have been taken and the tapes have been thus wound up upon the roller, the carriage 28 may he readily removed from the way-bars 31 and the space left free for the operation oi the fly fingers 25 in the manner previously described.

The delivery arms 123 are arranged to be oscillated back and forth by means of a crank arm 130 secured to the shaft 1241 and arranged to be connected at its free end to one end oi" a connecting rod 131 which is connected at its other end to a crank arm 132 upon shaft 67. As the latter shaft is rotated, the connecting rod 131 ira-reciprocated with a corresponding reciprocation of the arms 123, the connecting rods 122 and the carriage 28. W hen the carriage is to be removed and the reciprocating` delivery mechanism replaced by the Hy delivery mechanism, then the connecting rod 131 is disconnected from the crank arm 130. For this purpose the crank arm 130 is provided with a laterally projecting pin 133 which is adapted to be engaged by a hook 13-1 upon the adjacent end of the connecting rod 131. When the connecting rod 131 is out or engagement with the crank arm 130, it preferably rests upon a pin 135 which projects from the adjacent portion of the main frame 22.

The piling table 30 may be of any preferred construction, but it is narrow enough so as to pass freely between the way-bars 31 when it is raised to its elevated position, as shown in full lines in Fig. 1. As there shown, it is pivoted at its inner end to the delivery projections 53 and it is normally supported in the position shown in dotted lines in Fig. 1, by means of one or more adjustable legs 135 which rest upon a portion of the ink fountain 13G. The table 30 is also provided with props or legs 137 which are positioned so as to rest upon strips 88 on the way-bars 31 when the table is elevated. Suitable side and end boards 138 and 139 may be provided for guiding the sheet as it settles into its inal position upon the table after the tapes 92 or' the carriage mechanism have been withrawn or as it is brought into such position by the fly iingers 25.

1n order that the parts may be raised into the position of Fig. 1, the strips 88 upon the way-bars 31 are cut away at one point, as shown in Fig. 11, so as to allow the antifriction rollers 87 upon the carriage 28 to be drawn upward into the position shown in Fig. 1. In addition to this cutting away of strips 88, provision is made for attaching or connecting the freeyend of the main conveyer 2a to' the upper ends of the delivery arms 123. In this way, the latter arms serve as props or supports for the conveyer 24. is shown at 1li-0, the upper end of the arms 123 are hollowed out so vas to provide seats for a pin141'and 141L upon the plates l40 of the conveyer frame. As clearly shown in Fig. 10, these pins 141 and 141a are arranged to be reciprocated in bearings 142 formed in these plates. The inner end of the pin 1411L is connected by an arm 143 toa reciprocating rod 144 also bearing in the plates `40 and adapted to be shifted longitudinally back and forth. By reason of this connection, the pin 141'Lr moves back and forth with the rod 144. The pin 141 is connected at its inner end to .one end of a lever 145-which is provided with a 'handle 146 and is pivoted at an intermediate point to a bracket 147 carried by the associated plate 40. rThis leveris alsoconn'ected on the side of the fulcrum adjacent to the handle 146 to the reciprocating rod 144. l/Vith this construction it will" be vseen that the movement of the leverto the rightof the position illustrated in Fig. 10, will'force the pins 141 and 141L outward into thel path of movement of the delivery arms 123 and thereby bring them into position to be seated in the seats formed at the upper ends 0f these arms. A spring pin 148 passing through a portion of the bracket 147 is adaptedv to engageholes 149 in the adjacent pin141. These holes are two innumber and positioned so that when the pin 148 is in one of them, the vpins 141 and 1412L will be in their extended position, and when pin 148 is in the other hole, the pins 141 and 14111'will be in retracted position, that is to say, the position illustrated in Fig. v10.

Vilhen the parts are elevated and held so, the various mechanisms upon the Vpress directly beneath the delivery mechanisms and "the piling table,'may be quite readily inspected. inspection of the form inking and distributing rollers 150 and the plate inking and distributing rollers 151 which coperate with the ink plate 152- and the form upon the bed Y 158. VThe mechanism for reciprocating` the latter isl not herein disclosed as the same constitutes no part of the present invention, but 1 preferably employ the reciprocating' mechanism illustrated and described in my United States Patent No. 1,063,273,'granted June 3rd7 1913.

At this point it may be pointed ont that the ily delivery shaftr 29 is provided upon the end distant from the actuating rack 62 with a crank arm 154v which is securely clamped to the end of the shaft by suitable clamping means, lsuch as a bolt 155. At the outer end of the crank arm 154 is a pivot 156 upon which is journaled a bearing 157 which is secured' to a vertical rod 158 which extends some distance below, through anV This inspection will includeV theV gages the bearing 157 at one end and the frame member 159 at the other. As the shaft 29 is reciprocated, the spring 160 is oscillated. rlhe spring 160acts asa cushion and comes into play insuch capacity as the ily sticks'arrive near the end of their 180 degree sweep in each direction. l rllhis cushioning of the ily sticks byV means of the spring 160 is of great importance onhigh speeds as it prevents the sticksfrom jumping.

The, construction of the tape-holding bar 93 and spring roller 83 is similar. ltlach is composed of a hollmvgpipe. n the bar, 93, Athis pipe is closed at each end by a plug or blockl161,whichisprovided with a .f'ertical opening 162 for the pin 94, and a transversethreaded' opening 163 for the set-screw 95. 'In` the' case of the roller 83, each end of thepipe is closed -'-'witha llar opening 169. 1n this case I also preferably' employ an :opening V169V near each end of the roller, although a' larger number may 1n the case ofV be employed if desired. Thetapes 92 are thickened at their ends so that they will not pass through the saw- cuts 166 or 168. VThe tapes are preferably thickened `by sewing the end around apiece of cord V170, although Ythis end vmay be "attained otherwise.'V V The openings 167 .and 169 are made large enough to allow the thickened' end ofthe tape to be passed'through the opening and then moved lengthwise kof the roller so as to bring the tape into the associated slot. When in this position the tapes are lsecurely heldV from withdrawal and they will be wound on and off they roller as before explained, without becoming in any wayY detached from the lroller 88 or the bar 93. By this arrangement the 'tapes maybe readily shifted in the slots 166and 168 to accommodate themselves Ytc sheets of varying widths, or they maybe readily withdrawn for the purpose of'loeing replaced by new tapes,`or for the purpose of replacing bar'98 or roller 88, as may beldesired.

From the description heretofore given, itYI may be employed upon the press. lIncase the ily delivery VVisemployed, the carriage 28 and the associated supporting tapes 92 Vare removed, while the'delivery connecting rods 122 are leftwith theirpins 125 lresting upon the way-bars 31. At this time the actuating rod 181 is idle and resting upon the pin @n the other hand, when the reciprocating or face-up delivery mechanism is being operated, thc latch 74 is employed to hold the arm 64k out of engagement with the cam (36 and operation of the ily delivery mechanism is therefore prevented.

ln carrying out my invention it will be apparent that many alterations and modifications may he made in the structure disclosed without departing from the spirit and scope of the invention. I therefore do not wish to be limited to the specific structure illustrated and described, but aim to cover all such alterations and modifications by the terms of the appended claims.

lll/hat l claim as new and desire to secure by Letters Patent of the United States is:

l. ln a printing press, the combination of a main frame, an impression cylinder, a conveyor having its frame pivotally snpported adjacent to said cylinder, a recipron eating c: rriaff pivoted carriage-actHating arms, con recu R -is between sai'zl arms and said carrh ge, and means for connecting the free ends of said arms vith the free end of :id conveyor frame to hold the conveyer elevated to permit access to the parts ofthe press below it.

2. ln a printing press, the combination of a main frame, an impression cylinder, a conveyer having its frame pivotally supported at a point adjacent to said cylinder, carriage way-bars extending from the free end of said conveyor frame when in its conveying position, a carriage on said way-bars, arms pivotcd to said main frame adjacent to the free end of said conveyor' frame, connecting bars between said arms and Vsaid carriage, means for oscillating said arms to reciprocate said carriage. and means for connecting the free ends or said arms with the free end of said conveyor frame to hold thc latter elevated to permit access to the parts of the press beneath it.

3. ln a printing press, the combination of a main frame. an impression cylinder, conveyer having its frame pivotally supported adjacent to said cylinder, a reciprocating carriage, pivoted carriage-actuating arms, connections between said arms and said carriage, said arms being positionedto move in their normal operati-on past the sides of said conveyer frame, laterally movable pins journaled in the sides of said conveyor frame adiacent to its free end, means for throwing said pins outward into the path of travel of said arms, and means on the outer ends of said arms for engaging said pins to enable said arms to hold said conveyer frame in elevated position.

d. ln a printing press, the combination of a main frame, an impression cylinder, a conveyor having its frame pivotally supported adjacent to said cylinder, a reciprocating carriage, pivoted carriaffe-actuating arms, connections between said arms and said carriage, arms being positioned to move in their normal operation past the sides of said conveyy frame, laIr erally movable ins ournaled in the sides of said c-on'veyer frame adjacent to its free end, a pivoted lever having one arm secured to one of said pins, and a member secured to the other arm of said lever and to said other pin, whereby the actuation of said lever throws said pins outward into the path of travel of said arms.

ln a printing press, the combination of a main frame, an impression cylinder, a conveyor having its frame pivotally supported adjacent to said cylinder, a reciprocating carriage, pivoted cair.ge-actuating arms, connections between said arms and said carriage, said arms being positioned to move in their normal operation past the sides of said c/.mveyer frame, laterally movable pins journaled in the sides of said convey/er frame adjacent to its free ond, a pivoted lever having one arm secured to one of said pins, a member swan-ed to the other arm of said lever and to said other pin, whereby the actuation of said lever throws said pins outward into the path `of travel of said arms, and means for holding said pins in either extended or retracted position.

fr printing press delivery mechanism comprising way-bars, a carriage movable thereon, two shafts on said carriage, connections between said shafts whereby the rotation of one shaft in one direction rotates the other shaft in the opposite direction, cooperating gripper fingers mounted on said shafts and movable toward each other to engage the sheetupon one movement of said shafts and away from each other upon the other movement of said shafts, a spring-actuated togole connected with one of said shafts and operative to give them their lifferent movements when thrown into its different positions, and co` operating means upon said carriage and one of said ways for throwing said toggle into its different positions at different points in the travel of said carriage.

7. A printing press delivery mechanism comprising coperating gripper fingers for engaging the sheet, t vo shafts on which said fingers are mounted, connections between said shafts whereby the rotation of one shaft in one direction causes a rotation of the other shaft in the opposite direction, a spring-actuated toggle connected to one of said shafts and operative when thrown into its different po .tions to rotate said shaft in opposite directions with a corresponding movement of the cooperating fingers on said shafts toward each other to grip the sheet and from each other to release it, and means for throwing said toggle int-o its different positions.

8. A printing press delivery mechanism comprising main conveying tapes, fly de- :livery fingers arranged to lie noi'mally between said tapes and beneath the path of travel of the sheet thereon, a delivery table, a reciprocating delivery carriage movable above said table, connections for actuating said carriage readily sepaiable therefrom, a spi-ing roller and cooperating fabric lying below the plane of tra-vel of the sheet and operative to support the sheet during its reciprocating delivery advance and to free it when aiilvanced to a position above said table, vmeans for securing said fabric so that it may be readily detached from the press and i'emoved'with said carriage to allow said fly delivery lingers to operate.

9. A printing press delivery mechanism comprising a reciprocating carriage, waybars on which said carriage travels, pivoted carriage-actuating arms Vmovable in planes adjacent tor said way-bars, connecting bars uniting the free ends of said arms to said carriage, bearings in said carriage adjacent to said way-bars, studs extending from said connecting bars into said bearings and far enough to rest upon the way-bars when said carriage is removed therefrom, and readily detachable means for securing said studs in said bearings.

10. A printing press Vdelivery mechanism comprising a carriage, driving means for said carriage, a readily detachable connection between said driving means and -car riage whereby the latter may be readily freed forremoval from the press, a spring roller secured to the carriage beneath the path of travel of the sheet, a fabric secured to said roller, and a readily detachable connection between the free end of said fabric and a fixed part of the press whereby said fabric may be detached from the body of,

the press and upon being wound upon said spring roller be removed withsaid carriage.

11. A printing press delivery mechanism comprising a reciprocating carriage, a spring roller secured thereto beneath the path of travel of the sheet, iXed brackets having upwardly extending pins, a bar having apertures for fitting over said pins, and a fabric secured to said roller at one end and to saidbar at its other end, whereby said bar may be readily removed from said pins and removed with said carriage from the press. Y

12. A printing press delivery mechanism comprising cooperating gripper lingers for engaging the sheet, connections between said fingers whereby the rotation of one finger YVin one direction causes a rotation of the other finger in ther opposite direction, a

spring-actuated toggle associated with said connections and operative when thrown into its different positions'to actuate said connectionsto cause a movement of said fingers in oppositel directions onthe one hand to vgrip the sheet and on the other to releasev the sheet, and means for throwing said tog-y gle into its different positions.

j 13. A lprinting press delivery mechanism' comprising main conveying tapes, a reciprocating carriage, a tape support located Y near the ,delivery ends of said main conveying; tapes beneath the path of travel off-theV sheet, a second cooperating tape support located upoi'i said carriage, one of said tape supports being in the forni of a spring roller, additional tapes extending between saidsupports and adapted to be wound up Yas theV carriage retreats and unwound as the as it passes from one set of tapes to the other. Y l

14:. A printing press delivery mechanism comprising main Vconveying tapes, addi-` tional tapes for receiving the sheet as it passes from said main tapes, and fly-deliveryA fingers arranged torlie betweensaid main kconveying tapes and having their hubs located between the delivery ends of said main tapes and the receiving ends of said additional tapes just below the path of` travel of the sheetfso as to support the latter as it passes from one set of tapes to theV other. Y

15. A printing press delivery mechanism comprising reciprocating Vgripper fingers for gripping the forward edge of the'sheet and carrying it forward, spring actuated ytoggle mechanism for opening and closing said fin- Y gers, and a catch for tripping said toggle'toY open said fingers at the beginning of the return stroke of said fingers.

16. A printing press delivery mechanism comprising a reciprocating carriage, Va spring roller secured thereto beneath the path of travel of the sheet, arlixed support, tapes secured at their ends to said spring roller and support respectively and adapted to wind on and off. said roller as said cai riage reciprocates, fingers lying between said tapes adjacent to said spring rolleiy'and means for holding the ends of said fingers above the plane of the tapes as the latter are being wound up and against the roller as the tapes are being unwound therefrom.

17. A printing press delivery mechanisn comprising a conveyer having its .frame pivotally supported at one end, fly-delivery iinvgers pivotally supported at a point adjacent to the free end of said conveyer When in operating position, said ngers being adapted to lie between the tapes of said conveyor' and below the plane of travel of the sheet, a reciprocating rack and a coperating toothed gear segment for actuating said Hydelivery ngers, a shaft for said fingers, an arm on said shaft adjacent to said segment,

and a spring-pressed pin for securing said arrn and segment together7 said pin being lo CYRUS A. MCCAIN.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C.

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