Патент USA US2406857код для вставки
, Sept. 3, 1946. _. -Ag A. SAUL 2,406,857 SHEET HANÚLING APEARATUS ori‘ginal Filed April 3,' 1941 NNN m»mwN. _ @WN . l .NWN. W N. 3 Sheets-Shed 1 SeptÄ-s, " ` ‘ _SHEET n HANDLING À. A. SAUL vAP1=AR1^.TlJs ì ~ . :11u-@111mv File’à April s, 1941 « s sheets-sheet 2 1&_172.9 ï' lnigz. .737 134 2o.; 207~ Sept. 3,- 1946. `«ASM» y ` ' 2,406,857? SHEET HANDLING APPARATUS Original Filed April 5, 1941 l 3 She‘e'ts-Sheet 3 INVENTOR ¿Q7 ¿fumaba Patented Sept. 3, ,1946 2,405,857 UNITED STATES PATENT OFFICE 2,406,857 ' SHEET HANDLING APPARATUS August A. Saul, Pittsburgh, Pa., assignor to Miller Printing Machinery Co., Pittsburgh, Pa., a cor poration of Pennsylvania Original application April 3, 1941,’< Serial No. 386,652. Divided and this application May 25, 1944, Serial No. 537,222 12 Claims. e 2 1 This invention relates to sheet handling appa ratus and more particularly to sheet handling apparatus for use with a press or the like to handle sheets relatively thereto. While in its broadest aspects the invention is applicable to sheet handling apparatus generally it is in cer tain respects especially applicable to sheet deliv ery apparatus for delivering sheets from a press or the like. This application is a division of my invention will become apparent as the following description of a present preferred embodiment thereof proceeds. _In the accompanying drawings I have shown a present preferred embodiment of the invention, in which ‘ \ Figure lis a side elevational view of sheet delivery apparatus with a portion broken away, Figure 2 is a top plan view to enlarged scale copending Patent No. 2,371,190. 10 and with portions omitted and portions broken away of part of the apparatus shown in Figure l, The invention will be described as embodied in a sheet delivery apparatus for delivering sheets Figure 3 is a fragmentary plan view of a por successively from ja printing press wherein the tion of the apparatus shown in the lower right sheets are printed. The invention in the struc hand corner of Figure 2, part being `shown in ture selected for the purpose of explanation and 15 horizontal cross section, y illustration is concerned primarily with the means Figure 4 is a vertical transverse cross-sectional for changing the `elevation of the pile support. View taken on the line IV-IV of Figure 3, and In a sheet delivery apparatus the pile support is Figure 5 is a detail longitudinal cross-sectional View taken on the line V--V of Figure 4. , ' gradually lowered as sheets are delivered thereto and the sheets at the top of the pile are periodi 20 Referringnow more particularly to the draw cally jogged, this ordinarily being done at each ings, there is shown a‘sheet delivery apparatus cycle--that is to say,‘upon the delivery of each adapted to deliver sheets from a printing press. sheet to the pile. The amplitude of the jogging The printing couple of the press is not shown but movement is controlled depending upon the type a portion oi the press frame is indicated at 2. of stock used and the size of the sheets. . 25 such frame having an extension 6 projecting to` I have devised sheet handling apparatus which the left viewing Figure l and upon which the incorporates a number of vimprovements facili delivery apparatus, designated generally by ref tating operation of the apparatus and simplify erence numeral 3, is adapted to ‘be guided in ing its structure. I provide relatively simple movements toward and from the press. The press though desirably effective means for changing the 30 structure is not shown in detail since the present elevation of‘the pile support'. In a sheet delivery invention does not relate particularly thereto. apparatus the pile support is, as above stated, The press may print upon sheets passed there gradually lowered during the delivery of sheets through or it may be equipped with cutting and crossing blades or other instrumentalities for to the pile and when a pile of sheets is removed the pile support is rapidly raised to its upper posi ' acting on the sheets. tion so that a new pile can be gradually built The delivery apparatus, which will be herein up thereon. after referred to simply as a delivery, comprises I provide sheet handling apparatus compris opposed side frame members 4 and cross frame members 5 connected together to support and ing driving means, a lever, connections between the driving means and lever for oscillating the 40 contain the delivery mechanism. The delivery is ‘ separate Vfrom the press and is adapted to be lever upon operation of the driving means, a pile moved in a straight line toward and away from` support and means operated by the lever upon the press into and out of cooperative relation oscillation thereof for changing the elevation of the pile support. I preferably employ an oscil ship with respect thereto. This provides a work latable gear segment, together with means for 45 ing space between the press and delivery. The delivery and press are relatively movable and ` oscillating the segment, and means operatedby the segment upon oscillation thereof for lowering while in the structure shown the press is sta-> step-by-step the pile support. I also provide tionarily mounted and the delivery moves over the ` sheet handling apparatus comprising an oscillat floor the reverse mightbe the case or the press . able carrier, means for oscillating the carrier, a 50 and delivery might both move. pile support and means connected with the means The extension 6 above mentioned lies along the for oscillating the‘carrier and including an oscil Y floor and the delivery is suitably supported and latable gear segment for changing the elevation guided thereon to `move toward and from the. ‘ ' ` press. The delivery has bearingsV Il and l2, re Other details, objects and advantages ofthe 55 spectively. wherein are rotatively journaled of the pile support. 2,406,857 3 4 shafts I3 and I4, respectively. The shaft I3 is downwardly and is at its lower end pivotally con nected at 68 to a lever 69 having a fulcrum 10 in the delivery and the opposite end of which connected through a universal joint I5 with a screw I6 extending toward the press, and the shaft I4 is connected through a universal `joint I1 with a screw I8 extending toward the press. Fixed to the shafts I3 and I4 are sprockets I9 and 20, respectively. Journaled in the delivery are stub shafts 2| and 22 carrying idler sprockets 23 and 24, respectively. Mounted in the deliv ery is an electric motor 25 whose shaft 26 carries a bevel pinion 21. The bevel pinion 21 meshes with a bevel gear 28 fixed to a driving shaft 29 journaled for rotation in the delivery >and to which is also fixed a driving sprocket 36. A carries a cam following roller 1|. The press frame extension 6 carries an inclined cam 13 the upper active surface of which extends up wardly and toward the left viewing Figure 1. In Figure 1 the delivery is shown in operative position. When it is desired to move the deliv ery to inoperative position away from the press the motor 25 is energized to turn the screws I6 and | 8 in a direction which will result in move ment of the delivery toward the left viewing Fig ure 1. The entire delivery including the frame 36 will move rectilinearly toward the left for a substantial distance while the frame remains in sprocket chain 3| meshes with the sprockets 30, I23, I9, 20 and 24, as shown in Figure 1. The mountings for the idler sprockets 23 and 24 may iìxed position relatively to the body of the deliv be such that these sprockets or one thereof may ery. Such movement will continue until the de livery reaches the position in which the follower be shifted to suitably adjust the tension of the sprocket chain 3|. 20 1| engages the cam 13. Further movement of the delivery toward the left is accompanied by The press 2 comprises a base 32 having ñxedly riding of the follower 1I up the inclined cam 13 mounted therein nuts 33 and 34 with which the and consequent turning of the lever 69 about its screws I6 and |8, respectively, are in threaded fulcrum 19 in the clockwise direction viewing engagement. The screws I6 and I8 are of the same size, hand and pitch and the sprockets I8 25 Figure 1. This results in pulling the link 61 downwardly and the link in turn through the and 20 are of the same size, so when the motor arm 65 causes the frame 36 to pivot in the coun 25 is operated both of the screws I6 and I8 will turn in the same direction at the same speed ter-clockwise direction about the axis of the shaft 35. Thus'as the delivery moves toward and will cooperate in exactly similar manner with the respective nuts 33 and 34 through which 30 the left the frame 36 is automatically pivotally raised in the counter-clockwise direction viewing they pass. Since the nuts 33 and 34 are fixedly Figure 1 about the axis of the shaft 35. When positioned in the press base, driving of the screws the follower 1| reaches approximately the top of by the motor 25 will inevitably result in move the cam 'I3 the frame 36 will have reached its ment of the delivery toward or from the press depending upon the direction in which the motor 35 extreme upper position and the delivery will have reached its extreme position away from the press, armature turns. Preferably the motor is a re at which time the motor 25 will preferably be versing motor so that it may be driven in either direction. Consequently when it is desired to stopped by means presently to be described. When the mo-tor is operated in the opposite move the delivery toward the press the motor is driven in one direction and when it is desired to 40 direction the delivery is moved toward the right, which movement is accompanied by riding of the move the delivery away from the press the motor follower 1I down the inclined cam 13 and con is driven in the opposite direction. sequent swinging of the frame 36 generally in Pivoted to the body of the delivery 3 by a cross the clockwise direction about the axis of the shaft 35 is a frame 36 carrying one end of each of a plurality of endless conveyors 69 and 62. 45 shaft 35 viewing Figure 1 to the position shown The frame 36 is adapted to be swung about the . in that figure. Continued movement of the de pivot 35 from its generally horizontal operative position as shown in Figure 1 to a position in livery toward the press is unaccompanied by any relative movement between the delivery body and the frame 36 and the entire delivery moves rec which the right-hand extremity of the frame is raised. Means are provided, as will presently be 50 tilinearly into operative position relatively to the press. described, for thus swinging the frame 36 auto Mounted in the delivery for pivotal movement matically upon movement of the delivery away about a transversely extending pivot 14 is a lever from the press and for swinging the frame back downwardly into operative position upon move 15. Pivoted to the lever 15 at its lower end at ment of the delivery toward the press. When 55 16 is a link 11 having a hook-shaped end 18. The press driving gear is shown diagrammatically in the frame is in operative position the conveyors Figure 1 at 19. Through gearing (not shown) 60 and 62 are driven from the press with the upper reach of the conveyor 62 and the lower it drives a gear 83 fixed to a shaft 84. Also fixed reach of the conveyor 60 moving toward the left to the shaft 84 is a crank 85 to which is pivoted viewing Figure 1 to deliver sheets from the press. 60 at 86 a connecting rod 81. The opposite end of The sheets normally rest upon the belts 62 and the connecting rod 81 is carried by a reciprocable are conveyed away from the press thereby, the crosshead having a crosshead pin 88 preferably belts 66 serving to insure that the sheets do not carrying an anti-friction roller as shown. The ñy up during movement. The structure of the hook 18 is adapted to hook over the crosshead conveyors and the means for operating them 65 pin 88, When the parts are thus engaged op form no part of the present invention. Such eration of the press which is accompanied by structure and means are shown in my Patents reciprocation of the crosshead pin 88 is also ac Nos. 2,309,671 and 2,363,556. ' companied by oscillation o-f the lever 15. Mounted in the delivery frame is a shaft 89 having fixed thereto a manually operable control handle 98 which is positioned outside the frame. As above explained, the frame 36 is pivoted to the delivery by the shaft 35, the frame being fixed to the shaft 35 which is free to turn in its bearings 'in the delivery. Also fixed to the shaft 35 and extending toward the left therefrom view pinion 9|. ing Figure 1 is an arm 65. a shaft 92 to which is fixed a gear segment 93 Pivoted to the arm Also ñxed to the shaft 89 inside the frame is a Mounted in the delivery frame is 65 at 66 is a link 61 which extends generally 75 meshing with the pinion 9|. Thus turning of 2,406,857 the handle 90 causes through the pinion 9| and the segment 93 turning of the shaft 92 _through plate H6 with which the hook ||0 is adapted to cooperate tov mechanically latch the delivery a limited angle. to the press during operation. As the parts are shown in Figure l the center ' Fixed to the shaft 92 is an arm 94. Pivoted to the arm 94 at 95 is a link 96 having an elon U11 of the eccentric |01 is generally to the left of the gated slot 91 in its opposite end. A stub shaft 98 is mounted in the delivery and has a bell crank lever 99 turnably mounted thereon. The bell crank lever has a generally downwardly extend ing arm |00 having at its extremity a pin |0I which enters the elongated slot 91 in the link 96. The bell crank lever 99 also has a generally lat erally extending arm ‘|02 to which is pivoted at |03 a generally downwardly extending rod |04 which in turn is pivoted to the link 11 at |05. When the press and delivery are operating the cross-head pin 88 lies within the hook 18, as shown in Figure 1. When the delivery is to be center of the shaft 92. As explained above in connection with the delivery driving mechanism, when the delivery is to be moved away from the press the handle 90 is turned through two revolu tions in the counter-clockwise direction viewing Figure 1 and this turning of the handle is accom panied by rotation of the shaft 92 to a limited extent inthe clockwise direction. Such clock wise turning ci the shaft 92 swings the eccentric upwardly and toward the right viewing Figure 1. But since the fulcrum pin »I || is stationary such swinging `of the eccentric causes the arm |09 to pivot about the /fulcrum pin lli and the hook or moved away from the press the handle 90 is latch | I 0 moves downwardly and disengages from turned two revolutions in the counter-clockwise 20 the latch‘plate l i6 on the press. This severs the direction, viewing Figure 1. This, through the mechanical connection between the delivery and pinion 9| and the segment 93, causes rotation` of press and frees the delivery for movement away the shaft 92 through a-limited angle in the clock from the press. wise direction, viewing Figure 1. Such rotation When the delivery is away from the press and of the shaft 9,2 pushes the link 96 toward the ready to be moved back toward the press the right against the pin |0| in the arm |00 of the handle 90, eccentric |01 and arm |09 are moved bell crank lever 99 and turns such lever in the to the position shown in Figure 1. As the deliv counter-clockwise direction about its axis 98. ery approaches the press the inclined forward sur face I i1 of the hook | I0 rides down on the latch This lifts the rod |04, which‘raises‘the link 11 about its pivot 16 and disconnects the hook 19 plate H6. For reasons presently to be explained from the crosshead pin 88. In this manner the the delivery ordinarily stops a fraction of an delivery drive is disconnected from the press so inch away from the press so that it does not move that the delivery can be moved away from the quite far enough for the arm |99 to swing back up under the action of the spring |I3 to engage When the delivery is to be moved back into 35 the latch H9 over the latch plate IIS as shown cooperative relationship with respect to the press in Figure l. When the parts are thus positioned the handle 90 is first returned to the position the handle 90 is turned in the counterclockwise press. . e ‘ shown in Figure 1. This lowers the link 11 to ap- i proximately the orientation shown in Figure 1 but as thus lowered the hook 18 is not engaged over the crosshead pin 88. Upon movement of the delivery toward the press the inclined nose surface |06 of the link 11 rides up on the cross head pin 8B, thus raising the right-hand end of the link 11 about its pivot 16. As the delivery continues movement toward the press the right hand end of the link 11v is progressively raised until the hook 18 finally drops down over the crosshead pin 88. This movement of the link 11 is permitted by reason of the provision 'of the elongated slot 91 in the link 96, for when the right-hand end of the link 11 is raised by engagement of the inclined nose surface |06 with the crosshead pin 88 this pushes up the rod I 04 and turns the bell crank lever 99 to y direction ‘ somewhat less than two complete revolutions. This, as above explained, is accom panied by turning of the shaft 92 and movement of kthe center of the eccentric |01 generally up-, wardly and toward the right viewing Figure l. But the lateral component of such movement moves the arm |99 as a whole to the right suiii ciently for the latch Il@ to clear the plate H6 and when this has occurred the spring | I3 pulls up the latch into latching engagement with the plate H6. The handle 99 is then turned back in the Aclockwise direction to the position Vshown ' in Figure 1, which swings the eccentric |01 down wardly and toward the left. This tends to move e the arm |09 to the left, but since the opposite end of the arm is firmly hooked or latched to the press the result is‘that during such clockwise turning ,of the handle 90 the delivery is by the arm |99 through the eccentric |01 drawn up a limited extent in the counterclockwise direc firmly‘and tightly against the press. tion, during which movement the pin |0| sim While only a single arm |09 and associated ply slides freely in the slot 91. Also during mechanism have been described above I prefer operation of the mechanism when the crosshead pin 8B oscillates back and forth carrying the Gi) to employ two such arms, one adjacent each side of the delivery, the two arms being identical and link 11 with it such oscillation is accompanied by slight up and down movement of the rod i operating synchronously. This causes the deliv |04, which is permitted by the slot 91,1which allows the pin I0| to ride freely therein during ery and press to be drawn together firmly adl such movement. Fixed to the shaft 92 is aneccentric |01. Sur rounding the eccentric |01 is an'eccentric strap |08 forming one end of an arm |09 having an upwardly facing hook ||0 at its opposite end.f Mounted in the delivery frame `is a stationary, I fulcrum pin lll. 'I'he arm |99 has a lateral'pro jecticn H2 which underlies the fulcrum‘pirrl | I. The arm |09 is normally urged upwardly vby a` coil spring I|3 connected to the‘arm at «I|4` and to the delivery frame at 4| I5. > The press has‘a latch jacent both side frames. It has been explained above that operation of the motor 25 in one direction or the other causes rotation ofthe screws I6 and i8 to move the delivery toward or from the press. The motor circuit is controlled by four switches, one for closing the circuit to start the motor in one di rection to move the delivery out, a second for opening such circuit to stop outward movement of the delivery, a third for closing the `circuit to start the motor in the reverse direction to move the delivery in, and a fourth for opening aeoeemÍ 7 . such circuit to stop inward movement of the de livery. The delivery being in the out position, the handle 39 is tur-ned in the clockwise direc tion to the position of Figure 1. Fixed to the >8 fixed to a shaft |28.. Also fixed to the shaft |28 is a gear |23 and another gear |30. The gear |30 meshes with a pinion l3| ñxed to a shaft |32. Also fixed to the shaft |32 is a pair of sprockets |33, one adjacent each side frame. Carried by each of the side frames of the delivery is a stud |34. Each stud |34 carries interiorly of which closes the motor circuit to operate the the. side frame with which it is connected a motor in the direction to cause the delivery to sprocket |35.A Each sprocket |35 is in align move inwardly toward the press. The switch |20 10 ment with one of the sprockets |33. A sprocket is mounted on the frame of the delivery adjacent chain |36 at each side of the delivery meshes shaft 32 is a pair of switch operating arms H6 and H9. When the handle 30 is moved as above described the arm H8 operates a switch |20 the shaft 92 and in position to be operated by the arm llS upon movement of the handle 90 as just explained. The delivery continues its inward movement until a switch operating mem ber l2! on the press operates a switch |22 on the delivery which opens said motor circuit and stops inward movement of the delivery toward the press. The switch |22 and switch operating member |2| are so positioned that the switch |22 is operated to stop the delivery a fraction of an inch before it reaches its fully operative position adjacent the press as above explained. Thereafter manipulation of the handle 96 as above explained draws the delivery up tight against the press. When the delivery is to be moved out away from the press the handle 9|] is turned two revolu tions in the counterclockwise direction viewing Figure 1. This causes the switch operating arm H9 to swing upwardly and operate a switch |23 carried by the delivery adjacent the shaft 92 to close the circuit which operates the motor in the direction oposite that in which the delivery is moved in toward the press. Consequently the delivery moves outwardly away from the press. This movement, as above explained, is accom panied by downward movement of the link 61. Such link carries a switch operating arm |24, which when the delivery has reached its full out ward position operates a switch |25 carried by the delivery adjacent the link G1. Operation of the switch |25 opens the circuit and the deliv ery stops. The handle 50 controls the motor for moving the delivery, the driving connection between the delivery and press and the mechanical connec tion or latch for holding the delivery in place against the press. When the delivery is in, as shown in Figure 1, turning of the handle 9|) through two revolutions in the counter-clockwise direction releases the latch lill, disconnects the driving connection 18 and iinally initiates oper ation of the motor to move the delivery out. The handle 96 also initiates operation of the motor to move the delivery in and positions the arm |69 and the link 11 to adapt them to co with one of the sprockets |33 and the aligned sprocket |35'. Each of the sprocket chains |36 passes over idler sprockets |31, one or both of 15 which may be adjusted for tensioning the chain. Each of the sprocket chains |36 has one or more special links, the special links in the re spective chains being positioned opposite each other. Each of such special links has connected 20. thereto a bracket, the opposed brackets being connected by cross members to form a carriage 22,2 oscillatable in the horizontal direction view ing Figure 1. The structure of the carriage and the means for supporting and guiding it form 25 no part of the present invention and are not shown and described in detail. The oscillatory movement of the segment |25 is transferred through the gear |21, the shaft |28, the gear |30, the pinion |3|, the shaft |32 and the sprock 30 ets |33 to the sprocket chains |35 and thence to the carriage itself. Thus during operation of the mechanism the reciprocable delivery carriage moves back and forth longitudinally of the de livery and toward and from the press. The car 35 riage carries sheet handling means including tapes |44 cooperating with the tapes 6l] and 62 to receive and deliver sheets, but since such means form no part of the present invention they will not be described in detail. Sufiice it to say that the recîprocable delivery carriage ordinarily receives a sheet from the tapes 60 and 52 upon each reciprocation thereof and delivers the. same to the delivery pile. Meshing with the gear |29 is a segment |45 45 ñxed to a sleeve |46. The sleeve |46 is jour naled for angular oscillation upon a shaft |41. The sleeve |46 passes through the delivery side frame as Shown in Figure 3 and carries at its outer end an arm |43. Since the segment |45 50 and the arm |48 are both i'ixed to the sleeve |46 they are to all intents and purposes unitary. The arm |48 carries a pawl |49 projecting later ally therefrom and engaging a ratchet |56 ñxed to the shaft |41. The pawl is normally resil 55 iently urged into engagement with the ratchet |50 by a coil spring l5l. Upon oscillation of the segment |45 the paw1 |49 advances the ratchet operate with the press when the delivery moves |50 and, consequently, the shaft |41 to which it in. The delivery automatically stops a fraction is ñxed, step by step. Means forming no part of an inch short of its ultimate position and 60 of the present invention are provided for adjust again the same handle 96 simply by being turned ing the arc through which the pawl moves the somewhat less than two revolutions first in the ratchet upon each oscillation of the segment |45. counter-clockwise direction from the position Fixed to the shaft |41 is a pinion |52. Such shown in Figure 1 and then back in the clock pinion meshes with a gear |53 which, in turn, wise direction to that same position causes the 65 meshes with a gear |54 fixed to a shaft |55. Also hook llll to draw the delivery firmly up against ñxed to the shaft |55 is a bevel gear |56 mesh the press, this operation being accompanied by ing with a bevel pinion |51 fixed to a shaft |53 dropping of the hook 18 over the crosshead pin carrying a worm |59 meshing with a worm wheel S8 to render the deliv'ery operable from the press drive. Thus a minimum of manual eifort is needed to move the delivery toward and from the press. This subject matter is claimed in >my copending application Serial No. 386,651. The lever 15 carries at its upper end a-gear segment |26 which meshes with a pinion |21 |58. The ~worm wheel |60 is mounted loosely for _rotation upon a shaft löl. Integral with the worm wheel |66 is a ratchet 26|). Fixed to the >shaft |6l is an arm 20| which pivotally carries at 282 a pawl 253 engaging the teeth of the ratchet 296. The pawl 263 is urged into en gagement With lGhe ratchet 200 by a compression 2,406,852'. 10 coil spr-ingy2ll4.` Also fixed to the vshaft |6| is a pair of drums |62, ‘oneadja'cent each side frame. A'pair of cables _is adapted toÍbe wound up on and frame.' “I The' position of the stop member '|16 is determined‘by the position of the control ‘arm |18 which may be moved to any one of a plurality paid out by each of said drums |62. One of said of adjusted positions and maintained therein by cables~|63 passes over a sheave |64 and thence means of a spring pin |10 in the arm |18 vwhich may `enter any one of a plurality of arcuately arranged'openings |80 in a plate ‘|8| fastened to the outside of the side frame. The stop member downwardly to the pile support |65. The otherl |66 of said cables passes overa pair of sheaves |61 and |68 and thence downwardly to the pile support |65. ` ' ‘ . |16 ‘ determines the extent to which the shaft |10 . «The weight of the pile of sheets upon the pile 10 may turn in the clockwise direction viewing Fig support |65 causes-such support due to gravity to strain the cables |66 so as to` tend to turn the Rigidly connected with the jogger operating shaft 16| in the clockwise direction viewing Fig rods` |14 are rear jogger carriers |82 carrying rear ure ure 5. But since the arm 20| is fixed to the shaft 16| the pawl 203 carried bysuch arm and en 1. . ` - ‘ i' .' joggers i |83. Each Yoi the rods |14 is pivoted at 15 |84 to _a bell crank lever |85 pivoted tothe frame gaging the ratchet 200 prevents the shaft |6| fromturning unless the ratchet 208 turns also. Oscillation of the lever 15 and the mechanism above described causes the ratchet 200to turn at |86 and having an arm |81 operating a trans support. - In other words,»the ratchet 200 gives upon a transverse member 220 and has adown versely slidable rod |88. The respective .rods |88 at opposite sides of the delivery move always in opposite directions, that is, both of such rodsat periodically in the clockwise direction viewing 20 any given time move inwardly or outwardly.' Figure 5_. This allows the'shaft |61 to turn with Each rod |88 has fixed theretoa bracket 2|8 car a step-by-step'movement in the clockwise direcf rying a rearwardly extending rod 2|9 carrying tion viewing Figure 5 whereby to lower the pile side _joggers |89 and the rear" end of .which rests way step-by-step before the "pawl 203 which is 25 turned extremity 22| positioned rearwardly of the fixed to the shaft |6| through the arm 20| and member 220. The delivery pile |90 is guided at its outer edge by stationary guides | 0| and isïadapted this results in gradual lowering of the pile sup port as sheets are deliveredl to the pile during to be ¿logged in the usual manner by the rear jog-‘ operation of- the delivery apparatus. gerîs |83 and the side joggers |80. « ,Thesearing above described for llowering the pile support is enclosed within a casing 205 ap plied to the outside of the side frame of the de livery. 'I‘he shaft-16| extends through the casing 30 `While I have shown and described a present preferred embodiment of the invention it is to be distinctly understood that the same is not limited thereto' but may be otherwise variously embodied 205 and hasa reduced extremity 206 provided within the scopeof the following claims. with a .pin 201. A handle isadapted to be applied 35 1'.‘Sheet delivery apparatus comprising `a pile over the reduced extremity 206 and engage with support, a shaft, a flexible supporting elementV the pinV 201to turn the shaft | 6| in the coun' ter-clockwise direction viewing `Figure 5, whereby connected. with the pile support and wound about the shaft so that the mass of the pile support manuallyrto raise the pile support |65. When the pile support is thus raised the pawl 203 simply 40 acting through the flexible supporting element tends to turn the shaft in such a direction as to passes over the teeth of the ratchet>200 so that cause lowering of the pile support, a pawl con the position of such ratchet and the worm wheel |60 integral therewith is not disturbed. nected With the shaft, a ratchet mounted upon the shaft and with which the pawl engages so Fixed to the shaft |28 is a cam |69. Journaled in the delivery frame is a shaft |10 on which is that the pawl tends to turn the ratchet about the loosely mounted for rotation an arm |1| carry axis of the shaft in the direction of turning of ing at itsv extremitya roller `|12 adapted to lie the shaft to cause lowering of the pile support against and follow` the cam |69. The arm |1| and means turning the ratchet in said direction, is urged down toward the position in which the thus permitting the pawl and consequently the roller |12 engages the cam |69 by a tension coil shaft actuated by the mass of the pile support to spring 208 acting between the arm |1| and a pin turn about the- axis of the shaft in said direction 209 carried by the delivery frame. Fixed to the to lower the pile support. 2. Sheet delivery apparatus comprising a pile shaft V|1/ll at each side of the delivery is a gen erally upwardly extending arm |13. Fixed to the support, a shaft, a flexible supporting element shaft V>|10 is an arm 2|0 `having a laterally pro' connected‘with the pile support and wound about jecting pin 2||. The pin 2|| is adapted to lie the shaft so that the mass of the pile support against a generally upwardly projecting finger acting through the ñexible supporting element I claim: ' . . ` 2|2 integral with the arm | 1| which, as, above tends to turn the shaft in `such a direction as to cause lowering of the pile support, a second shaft, coil spring 2|3 surrounds a guide rod 2|4 con (SO means for‘ turning the second shaft and non nected with a hub 2 | 5 pivoted to the arm |1| and driving connections between the two shafts passing through an opening near the upper end whereby the ñrst mentioned shaft actuated by stated, is loose on the shaft |10. i A compression of the arm 2|0. The spring 2|3 bears between the-arm` 2_I0 and the hub 2|5, thereby urging the the mass of the pile support is permitted to turn synchronouslywith the second shaft in said di rection to lower the pile support. 3. Sheet delivery apparatus comprising a pile pin 2| | into contact with the finger 2 I 2. A jogger operating rod |14 is pivoted to each of the arms |13 at 2|1 and is adapted to be oscil support, a shaft, a flexible supporting element latorily moved thereby in a direction generally connected with the pile support and wound about longitudinally of the delivery upon oscillation of the shaft so that the mass of the pile support the shaft |10. Fixed to the shaft |10 is a gen 70 acting through the flexible supporting element erally horizontally extending arm |15. Such arm tends to turn the shaft in such a direction as to causelowering of the pile support, a second shaft, underlies an eccentric turnable cam~like stop means for turning the second shaft, a member member |16 ñxed to a shaft |11 passing through mounted on the ñrst mentioned shaft, connec the delivery side frame and> having a control arm |18 ñxed thereto and disposed outside the side 75 tions between the second shaft and said mem 2,406,8572 11 ber whereby said member is turned about the axis of the first mentioned shaft in said direction and non-driving connections betweenvthe first 12 ing element and the movable control member whereby the former drives the latter in step by-step movement and non-driving connections mentioned shaft and said member whereby the between the movable control member and said ñrst mentioned shaft actuated by the mass of the Ul first mentioned means through which said first pile support is permitted to turn synchronously mentioned means actuated by the mass of the with said member in said direction to lower the Dile support is permitted to move synchronous pile support. 4. Sheet delivery apparatus comprising a pile support, a shaft, connections between the pile support and shaft through which the mass of the pile support acts on the shaft, tending to turn it in such a direction as to cause lowering of the ly with the movement of the movable control member to lower the pile support. 9. Sheet delivery apparatus comprising a pile support, means connected with the pile support limiting its downward movement, an oscillat able segment, a movable control member, con nections between the oscillatable segment and the movable control member whereby the for» mer drives the latter in step-by-step movement and connections including pawl and ratchet means between the movable control member and said first mentioned means through which said port. 20 first mentioned means actuated by the mass of 5. Sheet delivery apparatus comprising a pile the pile support is permitted to move synchro support, a shaft, connections between the pile nously with the movement of the movable con support and shaft through which the mass of the trol member to lower the pile support. pile support acts on the shaft, tending to turn 10. Sheet delivery apparatus comprising a pile it in such a direction as to cause lowering of the 25 support, means connected with the pile support pile support, a movable control member, means limiting its downward movement, an oscillatable for moving the control member in step-by-step driving element, a worm, means operated by the movement and non-driving connections between oscillatable driving element upon oscillation the control member and the shaft through which thereof for turning the worm step-by-step and the shaft actuated by the mass of the pile sup non-driving connections between the worm and port is permitted to turn step-by-step in said di said first mentioned means through which said rection synchronously with the movement of the first mentioned means actuated by the mass of control member to lower the pile support. the pile supportv is permitted to move synchro 6. Sheet delivery apparatus comprising a pile nously with the worm to lower the pile support. support, a shaft, connections between the pile 1l. Sheet delivery apparatus comprising a pile support and shaft through which the mass of the support, means connected with the pile support pile support acts on the shaft, tending to turn limiting its downward movement, an oscillatable it in such a direction as to cause lowering of the driving element, a worm, means operated by the pile support, an oscillatable driving element, a oscillatable driving element upon oscillation movable control member, connections between thereof for turning the worm step-by--step, a the oscillatable driving element and the movable pawl connected with said first mentioned means control member whereby the former drives the for movement synchronously therewith, a ratch latter in step-by-step movement and non-driving et with which the pawl engages and connections connections between the movable control mem between the worm and the ratchet for turning ber and the shaft through which the shaft actu the ratchet step-by-step, whereby the pawl and ated by the mass of the pile support is permitted consequently said first mentioned means actu to turn step-by-step in said direction synchro ated by the mass of the pile support is permit nously with the movement of the movable con ted to move to lower the pile support. trol member to lower the pile support. 12. Sheet delivery apparatus comprising a pile 7. Sheet delivery apparatus comprising a pile . support, means including a shaft connected with support, means connected with the pile support the pile support limiting its downward move limiting its downward movement, a movable con ment, a pawl connected with the shaft, a ratch trol member and non-driving connections be et mounted upon the shaft and with which the tween the movable control member and said first pawl engages so that the pawl tends to turn mentioned means through which said ñrst men the ratchet about the axis of the shaft in the tioned means actuated by the mass of the pile direction of turning of the shaft to permit lower support is permitted to move synchronously with ing of the pile support and means turning the the movement of the movable control member to ratchet in said direction, thus permitting the lower the pile support. pawl and consequently the shaft actuated by the 8. Sheet delivery apparatus comprising a pile 60 mass of the pile support to turn about the axis support, means connected with the pile support of the shaft in said direction to lower the pile limiting its downward movement, an oscillat support. able driving element, a movable control mem pile support, a movable control member and non-driving connections between said member and the shaft through which the shaft actuated by the mass of the pile support is permitted to turn in said direction synchronously with the movement of said member to lower the pile sup ber, connections betweenl the oscillatable driv AUGUST A. -SAUL.