US1252857A - Sheet-piler. - Google Patents

Description

W. '8. STORY.

l SHEET man, AFFLKIATION FILED .IULY L |915.

ou 1 Gulf 1.

IT oon ml. JT

E mm ATTORNEY w. sToRY.

SHEET PILER.

APPLICATION FILED JULY 1. 1915- es ff Patented J :111.518, 1918.

5 SHE n. 'l y W. B`. STORY.

SHEET PILER.

APPLICATION FILD lLlLY I. |915.

Patented J an. "8, 1918.

, 5 SHEETS-shin s@ W. B. STORY.

SHEET PILER.

`APPLlcMloN FILED JuLY 1. Isls.

Patented J an. 8, 1918.

5 SHEFTS-SHEET 4.

Wl TNESSES:

l Arron EY w. sonY. SHEET man.

APPLICATION FILED JULY 7| I9I5- Patented Jan. 8, 1918.

5 SHEETS-SHEET 5.

20 4 .3a G n. 3 22 Arrof? y l UNITED sTAgEs PATENT OFFICE.

wm B. sron, or BnooxLY'N, Ni-:W Yonx, AssIGNon 'ro WARD B'. s'ronY COMPANY, c

. nw., or NEW Yonx, N. Y., a CORPORATION or NEW Yonx..

'SHEET-'PILEBh substitute rer appneation serial No. 762.784, med april 2a, 1913. This application sum1 No. sans.

tain newand useful SheetfPiler, of which the following is a specification.

This invention relates to devices for receiving sheets. usually from a printing press. and 4supporting them in a vertical pile.

'and fis a revivalof application Serial No.

762.781. iled'April 22. 1913. It has particular use with the delivery mechanism d escribed in mv copending application for patent. Afiled 'April 2'2. 1913. Serial No. 762.133. fand. infact. is illustrated herein as attached to such an apparatus. but this construction is shown solely for. purposes vof illustration. as the present invention is not so limited in use. The' objects of the invention arez' First: Keeping the top of therpile at ap-- proximately a uniform distancev from the deliver)v belts. Y

Second: The sheetsare` deposited without adjusting for different thickness, and with out attention from the operator'. As the height "ofthe pile increases. the sheets at the lower part arecloser together or com- 4pressed by the'weightofthe sheets above,

So that a uniform feed is impossible. Pilers at, the present, time are set approx'n,nately for average `feed,andV vtheope'raror sets the requires constant attention.

*.Third: The machine made accordingto eed'down or keeps it back atintervals. It-

this invention is automatic. and requires no adjustmentand no attention from thejoperator.' v

Fourth: T o render itnpossible.l when the "if pile is removed'. to return'the board support without turning the feeding screws.

Fi" th: To make it han cl-manipulated. setting down bvhand so'that an incomplete pile can beremoved. I 'These and'fu'rther objects will morey :t ull \v appear -fromj the following specification and accompanying drawings. considered together or separately, In the drawings.

Figureslis a side elevation'of a printing press equlpped with a. `p'iler embddving the,`

invention. i Fig. 2 1s aplanview ofthe piler.

' nated b v the same reference characters.

'1110A th `Patented Jan. 8,1918-, inea July 7, reis.

Fig. 3` is a section ontheline 3 3 of 55 Fig. 2.

Fig. 4 is a section on the line V1---1 of 2. ig. 5 is a section on the line 5-'-5`of Fig. 4. se

Fig. 6 is a side elevation of a nut, the view being taken at right angles to Fig. 4.

Fig. 7 is a section on the line T T of Fig. 3. 'Fig'. 8 is a section on the line S-8 of 65 Fig. 2.

Figs. 9 and 10 are detail perspective views of the regulating mechanism.

Fig. 11 is a section onthe line 11-11 of Fig. 10..

Fig. 12 is a similar view to l `ig.,11. with the parts in a diilerent position; and Fig. 13-is la detail view.

In all of the views.like part-s are desig- 75 Referring to Fig. 1. the frame' 1 carries the usual parts of the press. such as the printing couple. and the transfer cvlinders such as are described in my co-pending application for patent tiled,.Apri l 22`. 1913, 80 Serial Xo.v "(62,783`- entitled Delivery 'mechanism for. printing presses.

Onthe `frame is aV continuallvrotating shaft. y2. This shaft operates in timed relai tion. with respect tothe feeder. This shaft B6 carries a disk .27 provided with pins 284* which cooperate with slots 29 in a disk 3 0l as in in v copending application above referred This shaft. in the embodiment chosen for illustration. makes one :revolution dur-'90 oftimethat four sheetsare r. VAny mechanisiirmay be the sheets. but I illusisclosed in my cependingapplicatlon' for patent. .The sheetsI are 95 deliv to the-pile aby means ofgrippers b.' b ."ca iedfby belts c., These beltSale actuated by-rnechanism al. which gives the belts han intermittent,V fast and slow. movement.- The grippers graspfthe .she-et,` andsmovq'it 100 gto' the position immediately 'overthe pile,

and then release it. -Atthe' moment the grippersl release the sheet they arefat rest,

thatisf-the mechanism .cl has broughtfthe belts *C to rest. sothatthe sheet has nol fo'r- 10B- -ward' motion. Two grippers are shown:

4each engages with an alternate sheet; The

sheets are delivered to the grippers b, b, by

means of grippers, f. f, f. and by belts g. These latter grippers f. f. f. receive the sheets from the transfer cylinder. all in the manner described in my co-pending appli cation above identified.

The shaft 2 has a crank 3. and connected to the crank is a pitman l. This pitman ac tuates-the mechanism for lowering-the board 5 of the piler. This board slides verticallbetween standards d I3. forming. in the embodiment chosen for illustration. a portion of the frame 1. The reciprocation of the pitman l actuates devices for feeding the board 5 downward at a speed which depends upon the rate of growth of the pile upon the board. the speed of movement of the board downward being determined by mechanism to be described.

The details of the board are shown in Fig. 2. Itv is supported upon frames T. T. having forked extremities. These extremities have openings S. (Fig. 6) in which lie projections 9. 9. of triangular eros-section.' These projections are attached to nuts 10, which engage with vertical threaded shafts 11. These shafts are four in number. as shown. and lie inside' and parallelwith the standards G. 6. The pitch of the threads on all of thc shafts being the sa1ne.-it. is apparent that if all of the shafts are rotated at the same rate 'of speed. thev board will be alwavs supported in a horizontal position. The projections are somewhatsmaller than the openings. so that there will be some slight lost motion. and the nuts will be free to adjust themselves on the shafts withoutjannning.-.a structure made desirable owing to the nature of the nuts. as will be dei scribed. I c

The means for simultaneously rotating the. shafts is as lfollows` reference being had to Figs. 2 and l; Each shaft is provided with a gear wheel 12. preferably having inclined teeth. as shown. The gear wheels on the front and back of the apparatus are connected together b v cross shafts 13. having gears 14. which mesh with the gears 12. A driving shaft 15. at right angles to the cross shafts. has gea` :1G which also mesh with the gears 12. 1:2,.'011 the front and back shaft ,at onefside. as shown in Fig. :2. It is apparent that upon the shaft 15 being rotated. it will rotate two of the shafts 11 buv direct engagement of the ,gears 16 and 1:2. and the rot-ation of these gears 12 will rotate the cross shafts 13. 13- andthe other two 4vertical shafts 11. thus rotating all four of the vertical shafts at the samespeed. The shafts 11. 13 and 15.*are supported in suitable'bearings. as shown` The shaft 15 projects'bevond the Side of tlie frame 1, and has attached to ittheinechanism 'for rotating it. such mechanism' being actuated by the it-rnan 1. and being as follows. reference being had to Figs. 't'.'and 9. the fo'rnier showing the parts assembled. and the latter showing them separated for greater clearness. the shaftl 15 being olnitted. The pitman 1 is connected to a lever 1T. arried bv a sleeve 1S, looselv mountedto turn freely upon the shaft 15. The sleeve carries a second level' 19. so that the levers 1T and 19 with the sleeve 1S virtually constitute a single lever or crank. pivoted between its ends. and free to rotate ol oscillate upon the shaft 15 without turning the latter. the shaft merely affording a convenient support for the crank. The level' 19 carries a pawl 20. which engages with'- a V ratchet wheel 21. which is carried b v the shaft 15. and is so connected to the latter. as b v a lte v. that it will rotate it. This ratchet wheel is shown as having four teeth. but the number is immaterial. so that the pawl Q0 will successivelv engage the teeth as the lever 19 is oscillated b v the movement of the pitman l.

From thc foregoing description. it is apparent that the reciprocating movement of the pitman will oscillate the lever 19. and pawl 20. and the latter will necessarily en gage with the teeth of the ratchet wheel. rotating the latter. in the embodiment chosen for illust-ration. in the clockwise direction. and thus rotating the shaft 15. and through the gear wheels and' threaded shafts and nuts. will lower the board The parts are so proportioned that the late of travel of the board will bev faster than is necessary in order to keep the, top of the pile atthe proper level. no matter how rapidly the depth of the pile grows. This rate of feed is the maximum. and takes into consideration the greatest thickness of sheets that will be fed. and usual accidents and conditions. such 'as warping of certain sheets. irregularity. etc.. which ma)v cause the pile togrow at. an abnormall v rapid rate. so thatthe board will always travel downward at a rate of speed greater than the rate of increase of thickness of the pile of .sheets` So that the top sheet will never be too high. but. on the contrary. will always become lower as the pile increases in height. In point of fact. the top of the pile is maintained at a constant'level owing to devices herein described. which disconnect the feeding mechanism.

The next part of the mechanism to be described will be that for disconnecting the feeding mechanism at intervals, determined in accordance. with the height of the pile.

scend atregular intervals upon the top4 of `tii. to the left of Fig. 10.`

the pile a (Fig. 3). If the to of the pile is at the proper height. the disconnecting mechanism will not operate (see Fig. 1Q).

if the top of the pile is too low. (see Fig. b `l1`) the finger will descend below `its, normal vposition and disconnectU the feed mechanism. .The details of the mechanism are as follows: The linger '22 has a rearward extending projection 23. The linger is mounted to turn loosely upon a shaftfB-l. mounted in suitable bearings. This shaft is adapted to be oscillated ti. arotated alternately in opposite directions. for a part of a revolution) by mechanism to be described. and the g5 `linger 22 is adapted to be lifted vand depressed. The connections between the shaft and the linger are as follows:

The shaft carries a lever Q5 (see Figs. l0 and 11).` This lever is connected to the pro-` jection 23 This link has headed extremities. and is loosely mounted in openings in ears QT. 2T., on "the lever 25 and projection 23. This forms a species of connection which will cause the projection to follow the level'` 25 as the latter is moved by the rotation of the shaft'. A spiral spring 2S surrounds the link, and abuts against the ears and holds the latter normallyv described mechanism itfis `apparent that as the shaft :2t is rotated in either direction. the finger will be lnoved with it. The shaft :2l is rotated through about a quarter revolution. to quickly lift thenger clear of descending sheets and hold it elevated, and then quickly depress it upon the top sheet. by` the following mechanism: This mechanism is designed to elevate the linger and depress it at intervals de ending upon the design and construction o the machine. In the embodiment chosen for illustration. it elevated and depressed after four sheets are fed .to the pile. but itl must be understood thatl the rate of s eed of travel of the finger lnay bevvari to not interfere with descending sheets. its movement must be rapid. and must occur during the intervals sheets. and it must remai t `in elevated position while the sheets are being fed. In other wordsmwith the embodiment of the invention chosen for illustration. the finger must .be quickly elevated. and remain elevated while four sheets are`being fed. then it must be quickly depressed to engage with the to `sheetfthen quickly elevated. all beforet e next sheet is fed; and. of course, the rate of feed of the sheets and the intervals between themJ cannot be altered. so the must remain elevated and in practically immovable position while the sheets'are being deposited upon the pile. This mechanism is "in detail best shown in Fig. 3. and A pitman 29 is conof the rotated. through the by means' of a rod or link :26.`

' gear 32. the sector 311 separated. By the before- `.as desired. In order t 3S loosely pivoted to it.` between the feeding of` movement must be rapid and the linger.

nectedto the lever 1T. and virtually forms a continuation of the pitman l. and partakes same movement. Thispitman :29 is connected to a toothedrsector mounted above the shaft 2l. It engages with a gear wheel 31. to getthe proper direction of rotation; the gear wheel 31 cngages with a gear wheel `3:?. (see Fig. 10).

This latter gear "wheel carries theanchor member of a Geneva stop motion. such member being formed of a disk with a cutaway portion. and `a level-3L opposite the cutaway portion. and with an oifset roller A The driven member vof the stop. motion carriesailever 36( with a slot- `for the passage of the roller, and a sector 3T. for engagement-with the disk.

Itis apparent that upon the gear 3-2 being agency of the pitman 29. sector 30. and .gear B1. the roller will enter the slot. and swing the lever 36. through the arc of the circle. giving the shaft 2l a` quartenturn. After'the roller leaves the slot?. due to the continued rotation of the will engage with the rounded portion of the disk 33. and willlock` theshaft- 2l immovably in position.y The lever 3l is so arranged that it will engage the roller 35 wit-h the slot. atthe beginning of movement of the pitman 29. and will `leave the slot shortly afterward. and continue its movementduring the rest. of the tra vel of the pitman: thus keeping the linger :22 elevated during the greater port-ion of the movement. ofthe pitman. and causing it to he quickly elevated and quickly depreed. n

I will now describe the mechanism which connects the finger 22 and the pawl :20. so that the latter is lifted away from the ratchet wheel. when'the top of the pile is at a. gosition below normal. A

f his mechanism is best shown in'Figs. 3. 9, l0 and 11.

Referring to Figs. 10 `and 11. it will be noticed that the projection Q3 carries a dog The upper end of the dog carries. a roller 39, which is ada ted to engage with a fixed cam l0. depen ing from the frame 1. The other end ofthe dog is adapted to engage with a lever 41. ivoted' to turn upon an axis concentric with the shaft. Q-l. 'hen the roller 39 comes in con tact. with the cam l0. the lever l1 is released. The projecting end of the lever is adapted to be engaged by the dog `when the finger 22 is stopped in its downward passage by the pile. ...when `the finger goes below the normal position '(in the exampleschosen for illustration slightly above the horizontal position). This position occurs whenthe top of the pile is at normal. When the to of the pill is below normal,` the linger vvil be arrested by the pile at a. lower position. which may be expressed as below normal. The

30. rotatably msA through dog v 38 having been moved out'of the pathof the lal v separated lever 41 b v the engagementof the roller 39 with the c am 40 on the upward movement of the finger, the end of the dog cannot enge the lever 41 for the reason that the ever 25 and the extension 23 vhave not. been to an extent to allow the 'dog to pass the end of the lever- 41, and'consequently when the finger is raised the "sleeve 43 will not `be rotated, the disconnecting mechanism willAnot be operated and the table feed will continue.' It is, therefore, apparent that when the pile is at normal, the disconnecting mechanism is not operated, and the speed of normal feed w1ll soon lower the top of the pile to the position below normal. When the top ofthe pile is in position below normal. indicating too raid feed of the board 5, the fmgerv22 will fa a. greater distance than beforesee Fig. 11, the lever 25 and extension 23 will be se arated to a greater extent, the dog 38 w1ll be raised above the end of the lever 41 and the spring 2S will swing the dog inward so that when the shaft 24 is rotated to raise the linger the extension 23 is depressed, the dog will engage the lever 41, rotate the sleeve 43, and the disconnecting mechanism will be actuated to arrest the driving mechanism of the board. until the top of the pile reaches the normal position. The connection of the lever-11 to the disconnecting mechanism is as follows: The lever 41 .is carried upon a sleeve 43. which' surrounds and is supported b vv the shaft 24. This sleeve carries a lever 44, which is connected to and moves a 45. This rod 45 is connected to a lever 46, mounted to turn on the hub 47 of the ratchet wheel 21. This lever 46 carries a guard 48,

for holding the ratchet mechanism, about toy be described. in place. A s ring T1 (see Fig. 3) tends to move the 45 and lever 46 to the left. The `spring-71 is expanded during the operation -of raising the finger 22 after it has descended below the normal osition and the lever 41 Lhas been en v the dog 38. On the'lowering of the r 22 and the raising of the vdog 38 the spring 71 will move the lever 44 to the left an raise the lever 41.` This movement will continue until the spring is collapsed when the upward movement of` the lever 41 be arrested. A shaft 49. shown in broken lines in Fig. 7 is carried by the lever 19. and su ports the pawl 20. A continuation of this shaft supports a` bell crank lever 50,

which has an opening (see Fig. 9), for en- Y gagement with the shaft 49. LOne limb of the bell crank lever 50 engages with the limb o f the bell Crank lever carries a roller .53, which. engages with a fixed cam 54 mounted on the frame 1. The third limb of the bell crank lever engages with a lever 55` (see Fig. 9.), this lever being under the bell crank. One end of the lever 55 has a notch 56, adapted to be engaged by the third limb of the bell cranklever 50. The other end of the lever has a notch 57, adapted to be engaged by a projection 58 on the pawl `'20. The lever 55 has a projection engaging in a notch on a ring 59` which loosely turnsgon the adjacent to the projection on the lever 55 are inclined, as shown, so as to limit the oscillating movement .of thelever 55. The ring also carries a projecting roller or pin 60, which .lies in the path of the lever 46.

hub 47. The sides of the ring I Theoperation of this'portion of the mechanism 1s as follows:

Asbefore described, when the linger 22 descendsto the normal not moved. This is not necessary, as the feeding devices should not be disconnected. When the r descends to the position below normal, t e rod 45 is moved to the right, engaging the lever 46 with the pin 60, and mo the latter to the right, also moving the lever 55 to the left, or in the contraclockwise direction. The effect. of this movement will be to turn the rinor 59 andl lever in a contra-clockwise direct-ion. The movement of the rod 45 is slight, due to the difference in length of the levers 44 and .46, and to the releasing of the dog 38,-which transfers the control to the crank lever 50.

will occur by the time the rod 45 reaches the extreme extent of its movement to the right..

The further movement of the lever 19, in the contra-,clockwise directionV will continue to move the 59 in the same direction by the previously escribed engagement of the lever 50 with the notch 56, and the engagement of the notch 57 with the projection 58.

After the lever has moved to the extreme. position in the contra-clockwise direction, it will then move through the arc in the clocku' ging with the projection 58 on. ged lthe pawl 20, will liftv the latter out of contact with the ratchetwheel 21. This condition position, .the rod 45 is `mirages? vl wise direction. The pawl 2Q` will not then infr uent intervals. y N l j engage with the teeth ofthe ratchet 21, bethen e used, withoutchangingthe adjustcause it will `beheld out of engagement by ment, with sheets of'.thefminnnumjthickp the projection 58 being lifted by the corre ness.,l The ei'ect` of this will be that the dis- 5 spending lifting of the knotch 57, of the levery connecting 'mechanism will be =brought, into 7s 55, caused by the depression of the notch 56,` loperation muchniore frequently.- yAs an in turn caused by the corresponding de resexample,withverythick sheets, andassumsion of the end of the lever 50, whic in ing that the 1in`g`er22 is'raised atintervals of turn,y is caused by the elevation of the-roller four sheets fedto the board, thenthe raising 19 53 inthe raised portion of the cam 54. The of the level of theftop ofthe level ofthetop j l shaft will` not be rotated during this re-v of the pile, by`the" accumulationy'ofsheets c iprocatonv of .the ,y itman 4, and conse-v being almost asjast;asthedownwardfeedy uentl the board wil vrfnotbe lowered. When `ing fof the boardwthe disconnecting mechat e ro ler 53 enters thejlower 0r non-connism will operatexonly when Ifor example, p centric` part of the cam 54:, the lever 50 ten sets of four sheetsa1efed,.,thisnumber,- Si, will be turned upon its axis, lifting the free for example, lbeingf-',suliicient ytovraise y the end ofthis' lever out of contact with the finger 22 "from the position below normal -to notch 56l and allowing the notched end 55 the normal position, andl 'thus operate the y p tombe depressed by theprojection 58, caused, disconnecting mechanism. When, v for eX- 29 byfthe expansion of the spring'l, the arts ample, very thinjsheetsl are fed`, it mi htbe S5 'assuming theoriginal osition.,` Shoul the.'` that after four` sheetsfare fed, the., oard rod 45i be again xnov p to` the right, caused will `be so low, ;and conselllllently, :the top ofl by threes 3,61', 22being in the position below the pile so low,`that .the t .will `then be normal, the sameefect will result, namely,- below p normal',wlthus operating the disconthe awl20 will be lifted clear ofthe notches necting mechanism, and .this operation will 9g f on `t e ratchet wheel, and'consequently, the continue fory sometime, so that,v for, examfeeding'devices `will ybe disconnected. This ple, the ldisconnecting mechanism will be action willcontinue until the pile of sheets operated wheneight, when` twelve, when y is raised toy such a height that the finger 22 slxteen, whenfltwenty-four sheets or more v 3| when` it descends will -be arrested et ther-nor- `are fed,.before the top. ofk the pile-will, ar-A lmalp'osition, thenxthe rod 45 will notybe` rest thefngerat the normalvplosition', and, p moved to theright, the lever 46` 'will notfbe, therefore,ffailto operate'the disconnecting swung, and the ring 59 willnot be turned device. y In other words, the partsf should .f in the contra-clockwlse direction." vThe lever be so proportioned `that the board `will be .p 19, pawl 20 and lever k50 will besturnedfin f feddownwardilfaster than the growth of the Je@ the contra-clockwise direction as before, but pile, under any circumstances, .so ,that iffthe' the lever not` bein moved,thejfree end of disconnecting mechanism, were not present, the lever.` 50, when epreesedv by the enga. the top of the pilewould beloweredthrough ment ofthe roller 53 bthecam `54, w11l y space. Thevdisconnecting kmechanism keeps e0 swing beyond the end ofthe notch 56, and' the to p of the pile" from being lowered les "hence will not come into contact with the throng space more thanthefeeding move* lever55y, and, therefore, the notch? will not ment of the board `caused bythe engagement be raised, andno interference will be had of the pawly 20"with a single` tooth of the `with the projection 58` and ,awl 20. The ratchet'wheel 21, which will be an `inconsidprojection` 158, will simply slide upon u the erable trifle. lny other words,-,-the`. to of 11e curvedconcentric surface of the lever'55, and the ile willbe kept ata practically uni orm when it moves in the clockwise direction, the heig t. in space, and the eeding devices will pawl 20 willbe free to en gewith the lnext always act uniformly. "ii y. Another portionpof-,the invention resides They machine y may ltooth ofthe ratchet` whee ,21. y `l y `150 It, therefore, appears that the feed' efthe means hereby the" boaldfmay be l l ct lis,,intermitter1tl and'yinterru Ated.`l` t vis, ,quickly,raisec'l, `positiontoAk receive anew ti,n V i .feeozlbet f lpilea"Thismechanismvisbest illustrated in gFigs. 4 and, 5.".Thenuts 10 and the shafts t. 1are.fpec1.lliar.f` Eachnut is `madeinsepp y-tarate'y-parts, and the ythreadsofthe shaft are 1120 .wofjythe ytype -kIlOWnf as ratchet threads,y as

Y shown, the top edge ofthe thread being substantially, horizontal, and the bzottomj edge clinedwfEach nutlO comprisesa casing 6l eerfFig.; 5), 4lhaving fourk chambers.` In y125 ch chamber is a block H62, with ay threaded ipositeledge inclined and engaging with a similarly inclined` edge` of the casingn 61.

,3. 1A. spring. 63. engages with each block, 62, and 13C keeps it normally elevated, so that it is in .contact with the. casing-61, and shaft 11. TheseV parts constitute nut of such `chary'acter' thatfwhen the shaft 1 1 is rotated in the proper direction, he Vnut` will be lowered, or raised,ias dependsupOn 'the direction of rotation. When the operator desires to raise thev board to its initialposition for receipt of a lnew pile the frame 7 and raises it, the blocks 62 f sliding by the ratchet threads on ythe Shaft, and .compressing thesprings 63. The frame 'may, therefore, be very quickly raised to theinitialposition. 'Fortlie purpose of allowing -`adjustment of the frame downward or upward, without utilizing the previously described mechanism, lI utilize a chain 64 (see Fig. 1) which is operated by a-crank 65," and rotates Figs.` 2 and 7 lThe operator can disconnect the pawl from' the ratchet wheel21 vby hand. The usual sheet guides 68 (see Fig. are provided, yand guide the sheets from-the delivery mechanism tothe pile. It is to be understood that the finger`22 is best located in such a position that it will engagewith the narrowest sheets that are utilized. In Fig. 2 it is shown as at about may be carried out in other ways.

Having now described my invention, what I claim as newv and desire to secure by Letters Patent, is: 1. A sheetv piler comprising a; board; means for feeding the latter; means for feeding sheets to the board; means acting in time' with the "sheet feeding means; a finger,l

connections, including a Geneva stop motion,

between the finger and the said last named means for `moving the finger into contact with the pile and out ofcontact therewithV during an interval between which separate `sheets are ing mechanism, connecting the finger with the board feeding latter. 2. A' sheet piler,

with a board; of rotary screw-threaded for supporting the latter.

of sheets, he simply grasps,v

ving the board at a rate faster than the a sprocket wheel 66 (see the middle of the board, but it may advanis merely illustrative, and that the invention Y fed to the board; and disconnect- ,'means, for actuating theliar-ingl "in combination 1 shafts associated therewith; means for rotating `the shafts v;- annt'tn each shaft; a tri` angular'projectionl onoach nut; and connec- 2 tions between the pro]ect1on and the board movements-of the shaft to'` the device,`

for delivering sheets thereto, means for. feeding the board at a rate faster than the growth in height of the pile of sheets, a member engaging the top sheet of the ileat intervals, a shaft supporting the inem er, connections Vbetween the `member vand shaft, and means controlled by'the height of the pile for dislocating the connecting means. 4. A sheet piler having a board, and means for delivering sheets thereto, means for feedgrowth vin height of the pilefof sheets, a memberengaging the topfsheet of the pile at intervals, an oscillating shaft supporting the member, connections between the member and shaft, and means controlled by the height of the pile for dislocating the connecting means.

5. A sheet piler having a board, and means for delivering sheets thereto, means for feeding the board at a rate faster than the growth in height of the pile of sheets, a member engaging the top 'sheet of the pile at intervals, an oscillating shaftsupporting the member, a lever secured to the. shaft, a flexible connection between the member and the lever, and means-controlled by the move ment of the member, for dislocating` the connectionQ 6. A sheetpiler having a board, and means for delivering sheetsthereto, means for feedy ing the board at a rate vfaster than the growth in height of the-pile of sheets, a member engaging the ,top sheetfof the pile v, at intervals, an oscillating shaft supporting the member, a deviceconcentric with the-wf? shaft and' movable relatively'f'thereto, and .means for transmitting the ements (if-. the shaft to the device. f f

7. A sheet piler having a board, and means' 106 for delivering sheetsv thereto, means for feeding the board at a 'ratekfaster than the growth in height of thepile of sheets, a member;engagingv the top sheet of the pile at intervals, an oscillating shaft supporting the' member, 'la device concentric with the shaft and J"i1ro'vzfi'ble relatively thereto, means for trans" thejinovements of the shaft to thedevice, means for dislocating the transmitting means# 8. A sheet L4piler` lhaving a board, and `means for delivering-sheets thereto,.means `forfeeding the board at `a rate fasterthan the growth in height of the pile of sheets, ar member engaging the top sheet of the pile at 12 intervals, an oscillating' shaft supporting the member, a device concentric with thek shaft and `movablei elai :ively thereto, means controlled by the-engagement of 'the membe Vwith the pile off-'sheets for-transmitting the 12 `means for dislocating the' transmitting meansf L V '9.YA sheet-pi1er,havingyaboard, and 4means for delivering sheetstheretqsmeans "13 i the member,

4 10. A sheet piler mem er `engaging the top s for feeding the board at a rate fast-er than the growth in heightof the pile of sheets, a member engaging the top sheet of the pile at intervals, an oscillating shaft supporting a device concentric Witli the shaft and movable relatively thereto, means i yfor transmitting the movements of the shaft to the device, and connections between the' device and the feedin means. e

having a board, and means for delivering sheets thereto, means for feeding the `board ata rate faster than the owth inl height ofthe iile of sheetsz a eet of the plle at intervals, an oscillating shaft sup orting the member, a device concentric with the shaft and movable relatively thereto, means for transmitting the movements of the shaft to the device,l means -for dislocatingy the` transmittin means, and connections between the evice and the feeding means.

porting the member,

lL'A sheet piler having aboard, and"y means for delivering sheets thereto, means I for feeding the board at a rate faster than the growth in height of the pile of sheets,-

a member engaging the top sheet of the pile at intervals, an oscillating shaft sup? a device concentric with the shaft and movable relatively thereto, means controlled by the engagement of the member Withthe pile of sheets for transmitting the movements of theshaft to the device, means for dislocatin the transmitting means, and connections etween the device and the feeding means. i

This lspecification signed and witnesse this sixth day of July, 1915.

Witnesses ANNA G. BENTON, CHAs. SCHNEIDER.

WARD B. STORY.

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