US886118A - Paper-feeding machine. - Google Patents

Description

No. 886,118. 4 v PATENTED APR. 28, 1908. T, C. DEXTER. I I

PAPER FEEDING MACHINE.

APPLICATION rum) AUG. 3. 1907.

a SHEETS-SHEET 1.

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m; a 7 05 W67 812M 35, e tomjgg No 886,11 8. EATENT APE, 28, 1908.

-1 c. DEXTER. PAPER FEEDING MACHINE.

APPLICATION FILED AUG. 3, 1907.

a SHEETS-SHEET 2.

wilm/maa gm/ue 14430-6,

NO- 886,118. PATENTED APR. 28, 1908.

, '1. OLDEXTEB.

PAPER FEEDING MACHINE.

.APPLIUATION FILED AUG. 3, 1907.

6 SHEETS-SHEET 3.

w w w PATENTED APR. 28, 1908.

T. G. DEXTER. PAPER FEEDING MACHINE.

APPLICATION FILED AUG. 3, 1907.

5 SHEETS-SHEET 4.

NITED STA'lES iir'nnr oirricij.

TALBOT (J. DEXTER, Ol PEARL RIVER, NEW YORK.

PAPER-FEEDING MACHINE No., 886, 1 is.

' I Application filed Augult 3,

- Feeding Machines, of which the following is a specification.

My present invention relates generally to. improvei nents in paper fcedin machines, andparticularly to feeding mac ines of the sheet combin type, in which the pile of sheets is acte upon by combing l'eeding'devices which comb or feather out the too able sup ort connected with sheets of the pile to gradually separate tlfe. successive sheets near the top so that they may be drawn from the pilc'periodically and :-fed to any 'n iachine arranged to operate upon the' 'individual sheets. ..Macliines of this type are set forth in Letters Patent No. 829,854, granted to me August 28th,'1906, and No. -850,'82l, -g-rantcd April 16th, 1907.

My irescnt invention is an improvement upon t ie structure set forth in an application-for patent filed by me August 1st, 1,907, Serial No. 386602, and the object of in'y-present inventionis to further improve the construction andopcration of this type of mechanism. Y

My present invention involves the same enera principle as the mechanism covered by my said application Serial-No. 386602, in that the sheet actuated tripping finger earries and operates a wedging blade or. plate which is projected between two cooperating rollers, one of which is mounted upon a mov- 7 the tripping finger o the latching niecln'inisni. The

main feature of distinction over the machine of said prior application is the mounting of the sheet actuated controlling-mechanism. In'n'iy )i'esent improvement 1 have mounted both ,ol the coi'iperating rollers and omni ping finger upon a movable support which is periodically operated by cam mechanism through a link or pitnian having lost motion connection with said movable support so that the periodic elevation of the tripping linger (nit of; the path oi the sheets is accomplished by raising the said, movable support; The

. limiilllQtlOIl connection oi" this can 'operated link or pitinan with the movable support of Specification of Letters Patent.

' Patented s in 28 1908-.

1907'. Seria11i'0.336,8l37.-.

. enabling said link or pitman to first tri tne latching Ii\(:l'18,I1lSm. B.I1d then elevate the tri ping finger out of the path of sheets n order'that my invention may be fully. understood, I will first describe the same with reference to thefaccompan drawings,- and afterwards oint out t e novelty "more particularly int 6 annexed clanns.

Fi 'ure 1 is a detail vertical transverse sec-Q tiona elevation of one half of a paper feeding machine embodying my invention',. the other half of the machine being omitted. Fig. 2 is Fig.3 'is a vera to plan view of the same.

-0 itu ina sec iona viewo esame, l l n' d l t' l fth tica taken on the line a-a of Figs. land 2, look ing in the direction indicated by the arrowsa, a. Fig. 4 is a similarview taken on the line b b of Figs. 1 and 2, lookin' inthe direo tion indicated 'by the arrows b, Qf .Fig. 5 isa detail vertical. longitudinal sectional view, on

a lar 'er scale, taken on. the line. c'c of Figs. I I I 1 and 2V and looking in the directionii dicated by arrows, c, 0, showing the main parts in tripped position, ai 'gtIomitting some parts for clearn'ess Fig-6 is a detail sectional view..

Sheet-feeding machines of the type to.

which my present invention relates are provided with twosets of sheet moving devices arranged to operate atopposite sides. of the -inachine. Inthe accompanyin r drawings, I have 'shown'only one half of tie machine,

including only one of these sheet moving '(levices, but it'will be understood that two such devices of the SELIIIO COIIStI'UClZlOH are-emplayed, each being independently controlled ya sheet actuated tripping device, as hereinafter explained.

' 'lhe frame-work of my improved machine may be of any suitable construction to properly su port the working parts hereinafter referrer to. Inthe drawings, 1 re resents one of the verticalside frames. 7 he side frames are suitably bracedtolinake them rigid by means of stay rods 2, 3, and other frame parts not shown, and within the frame is provided a suitable table or support (not shown) for carrying a pile of sheets, indicated by the reference letter P. At the frontof the pile of sheets; I provide'a series of vertical guiderods or strips,- (n t shown) for confin f ,"ygthe pile. i

the tripping mechanism is for the purpose of sliii ft bearing the brackets, (not shown). 8 are drop rollers j ournaled in the rock arms 9, mounted upon the transverse rockshaft 10. The drop rollers 8 are supported above two or more of the under feed rollers 6, with which they co6p crate. The rock shaft 10 extends transversely of the machine, above the constantly 10 running lower shaft 5, and is suitably braced arms, (not shown), rigidly secured to the auxiliary longitudinal frame pieces 12. The rock shaft 10 is operated by any of the usual forms of mechanism, such, for instance, as shown in my above-named patents, whereby the drop rollers 8 are periodically lowered and raised into and out'of engagement with the cooperating under rollers '6, for. perform sheets.

The main cam shaft extends transversely of the machine and is suitably journaled in the main side frames 1 and the auxiliary longitudinal frame )ieces 12. This shaft 20 is provided with a driving pulley 25, as shown, or it n ay be driven in any other suitable -manner, said shaft being the shaft from which all other arts of the machine are driven. The cam s raft 20 carries a large gear 26, which meshes with a smaller gear (not shown) secured to a larger gear 28,

journaled upon a stud 2 9, pro ecting from the side frame of the machine. The gear 28 meshes with and drives a small intermediate gear (not shown) which in turn drives a small gear 32 keyed to the projecting end of the comber driving shaft 35, hereinafter referred to, and another smaller gear (not :49 shown) keyed to the projecting end 'of the constantly rotating feed shaft 5 above referred to. This gearing is clearly shown and described in my above named patents.

40 is one of a pair of combing wheels,

'Each of these combing wheels is freely jour-.

naled at 41 upon a rock arm 42, which is freely journaled upon a sleeve which is in turn journaled upon the shaft 35. This 'shaft 35 has keyed to .it a gear 45 which meshes with a gear 46 secured to the combing wheel 40, by which the combingwheel is constantly rotated.

Projecting from one face of the combersu iporting rock-arm is an ntegral lug 43 in which is mounted an adjustable tappet screw 44. Secured upon the sleeve 50 to one side of the rock arm 42 is a rock arm 51 which is provided with a finger 52, which projects beneath the tappet screw' 44 just referred to, and by its engagement therewith lifts the combing wheel away from the pile.

13v adjusting the screw 44, the limits of rise and fall of the combing wheel can be fixed. The rock-arm 51 is moved in one direction for lifting the combing 'wheel by a spring mechbetween its ends by'two or more bracket.

ing their function of feeding off the successive,

.vertically and riding, illliJS upper end,lin a .operating shaft 35. The hu portion 67 of anisrn which is normally restrained by a latching device which is periodically released by the sheet actuated trip Sing device herein after enplain'ed. The roc -arm 51 is moved in the opposite direction to allow the combing whee to move by gravity into engagement with the pile of sheets by the action of a cam as willn'ow be explained. Sleeve 50 has at its end, adjacent to the rock-arm 51', another rock-arm 55' towhich'is pivotally connected it pitman 56, formed with a yokeshaped upper end, which straddles the shaft 20. The shaft 20 carries a peripheral cam 58, which engages an antifriction roller 57 journaledupon the pitman 56, whereby the rock-arm 56,- sleeve 50, and fi er 52 are moved once in each revolution 0 the shaft 20 to'reset the spring and latching mechanisms (hereinafter described) and allow the combing wheel to rest upon the pile.

The rock-arm 51 projects forwardly from the sleeve 50 and has ivotally connected to its forward end a latching bar 60 extending socket formed in a bracket 62 extending l'atorally from" one I of thecentral auxiliary frames 12. Freely journaled-upon a pin or bolt 65 projecti laterally from the latching bar 60 is an anti iction roller 64, which normally engages .the upper end of a latching arm 63 freely journaledupon a bolt 66 mounted in .bracket arm 67 of the movable support for the tri pping mechanism herein after described. en the latching arm 63 is in'en agement with the antifriction roller 64, said arm will be in roper' osition -to maintain the downward t rust o the latching bar to withstand the ressure of the spring device (presently to e referred to), with the result that theeombing wheel will be allowed to rest in its lower operating position. The latching arm 63 is moved into and out of active position during the operation of the machine by the means hereinafter described, its movement out of action bein normally under the control of the sheets fed from the pile. i A rod 70 is pivoted at 71 to the rock arm 51' and projected therefrom vertically through the guide bracket 62. Surrounding the rod 70 and confined between a collar 70 above the rock arm 51 and the guide bracket 62 is an expansion spring 75 which tends to throw down the arm 51 and move up the finger 52 for raisin the eomber away from ,the pile of sheets. his spring tendency'is normally restrained by the latching arm 63, and the latching bar 60, Turninmnow to the sheet controlled tripping medhanism for releasing the eomber elevating means, it will be observed that a rock arm 67 is supported u on the comber the rock arm 67 is cut out at 67 to receive a laterally projecting pin 68 extending from 30 a suitable opening formed in the trip arm 63w ThGJlUipOSC of'the slot- 95 and set screw 961s e same time permitted a limited upward movement upon the shaft 35.

A shortshaft 80 is freely jo'urnaled in the forward end ofthe rock arm 67, and carriesa rubhcrfaced roller 81 and a relatively large. gear wheel 82, said roller 81 and gear 82 be'-] ing rigidly secured u )QII the shaft 80 so as to. he gear 82 meshes with one of the train of gears '83, 84 and 85, the intermediate gears 83 and-84 of which train. are freely journaledat 86 and.87- upon. the rock arm 67., while'the driving gear 85 of said revolve therewith.

' a train is keyed to; the eomher operating. shaft 35.. caused to travel constantly in thedirection 2d indicated by the arrow in '1 ig. 5, of; the drawin s. g ireely journaled upon the bolt 66 which supports the tripping arm 63 is a rock arm 9'0 ward en V roller--91 which is-supported directly above ,the constantly running lower roller 81, and,

in the normal operative position of 'ill('i.lulf"-:

chine,- runs in peripheral contact.with' z nd is.

driven'by said roller 81. The i wardly-pm je'cting roclg arm 90 formed integral withor rigidly secured to atubular huh 92 which journals upon the bolt '66, and formedatii one end with'tho upwardly projecting arm 93' formed with the laterally projecting-lingers" '94 which project in front and rcar ofgthetripping arm 63. "it-horizontal. slot 95 through wliic-h'passcs an adjusting set screw 96 which is threaded into to a just the relation of tripping arm 63 and roller rock arm 90 so as to accurately present the trippin arm 63 beneath thean'tifriotion roller 64 o tripping bar 60, for supportingsaid tripping liar, when the roller. 91 is in peripheral contact with the rollerSl'. The movement of the roller 91 into contact with wardly to bring ithonest the antilriction roller 64 on the tripping bar. To prevent late, or lug upon thctripping bar 60.

his lug 60 projects across the path of the tripping arm 63 and limits its forward movement seas to accurately arrest it vertically I beneath the antifriction roller 64.

= It will be understood from the description thus in given that the tri ping-arm 63 is tripped from beneath the rol er 64 on'the tri 5 ping bar 60 by the upward movement of t 1e Qgriilwith' the tripping linge'ryis an arin 105 By this mechanism the roller 81 is prolectin forwardly and carrying in-itsior: "lilado' NHL-whenit is moved 'into contact a freely journaled 'ruhher laced;

; understood thattliis action takcsplace when i'ollers' tir l'and- 91 'IllO/BIIH 93 is formed with .91" and Xttprojoct.

the roller 81, moves the tripping arni Git-ion from beneath the roller) 1 provide a stop' rock arm 90. This tripping actionis accomplished b means of a s eetaetuated tripper which will now be explained.

100 is the tripping iingei'ilepending from and freely 'ournaled upon .a pin or.holt.1()3

rejecting iorizontally and laterally from a .oss 102 which is'secured to the face of a downward extension 67 of the rock arm (37, .by which-said journal pin 103 is supported. The lower end of the tripping finger,- 100 is "shaped so as to present'a vertical face 1()()" across the-plane of 'feedol' the sheets, when I "the tripping linger is in 'tripping position.

Projecting upwardlyfrom and formed inte which carries atits upper end a laterally drop-cling wedgosslmprd blade or'.plate 106. I lujouru'al'p'in {1(Bfs-(liroctly beneath the, short shaft 80, and-the li-iigtlr of tlie arpi 105 is sue-ll that-thohlade or pluto I-OGZWiIl-bcpresentmlin proper position to pass over the u-p'ic'r periphery of the'c'onsta'ntly rotating rol erffil thoqrollei' Sig-living designed to fric tion'ully engage the :under';surfacef of 'the .-there\\'itli, [or the purposg-i; ol'rausing saidlihulojto pussovcr the-roller S1 and under the roller SH l'or elevating roller 91 and rock .shaftilU-Ior tripping tl-ie amt-(53.. It will he eleading'edgo-of'aislu-i ti-i oving irom the pile. engages-the trippinglinger and moves the liladeor'plate 10G intotin bite of the Keyed to the main :amshal't 20 is a cam .1 1 ).-'lutving'ahigh-portion and a low. )ortion, :each of which portions is about one ialf the circumference of the can]. J I

1 ll isa rock arinjourn'irled at 1-17 and carrying a freely jouriui log-l nfntil'riction roller 1 18, which .runsin-pt-ripliei'al contact with the coin trollingciun .I 19., Pivot-ed to the outer end of the: rock-arm 116 is a downwardly extending rml1n'=pitinair'l 13 whose lower end is rov'idod with two vertical-slots 1 IPP'and 1 13", into which. lilNfPXlNlilNl ends of the shafts The upper slot 113" is g of greater-length than the lower slot 113" for the )urposcwhichwill presently appear.

hile the antil'riction. roller-118 is in engagement with'thedow. portionol' the controlling can! 119', the" movable support or rock arm 67 for the tripping mechanism will he in-its lowered posit on, with the tripping finger resting in the path of the sheets in readiness to be 0 erated by the leading edge of the sheet. [1 this position, which is shown in Figai'of the drawings, the wedging. blade or late106 is'sup'port'ed directly in frontof'tlie cooperating'rollers 51 and 91. 'hcn'the roller 118 passes to the hi h portion of the controlling cam 119, it 'wil be oh served that the rod or; iitinan 11.3 will he moved upwardly with the result. that the roller 9-] will firsthe moved away .from they roller 80 (unless the previous trip ing action of the sheet has elevated the roiier 91) for actuating the tripping arm 63, and then the rock arm 67 will be raised by the engagement of the lower end of lower slot 113 with the shaft 80, the result being that the trip ing finger 100 will .be' raised above the pat 1 of the sheets as shown in Fig. 5 of the drawings.- This action will be more fully understood in connection with the complete operation of themacliine as hereinafter explained. It should be observed, however, in this connection. that in theposition of the parts as shown in Fig. .4 when the machine is operatmg .andthe tripping mechanism is in readiness to be tripped by the action of-the sheet;

the upper en of slot 11'3 is resting uponthe shaft 80, and the lower end .of the upper slot llht is in engagement with the shaft 91". This relative arrangement is to permit the upward movement of rod or pitman 113 to raise the roller 91 before the rock arm 67 is moved, the position of lower. slot 113 in Fig. 4 being such that the pitman will have a preliminary upward movement relatively to shaft SQ-befdre engaging said shaft for moving rock arm 67.

' As described bove the lower constantly ruhning shaft is provided with the ordinary under feed rollers '6 and the special underfeed'rollers 7.. These rollers 7, two of-which are provided in the machine, are in the form twin rollers. This is clearly shown in Fig. 1

recess 7" separating the two parts.

of twin; rollers, witlnan annular groove pr T 1e same result can, of coursc be accomplished bly mounting two separate rollers upon the s aft 5 witha suflicient space between them. The twin rollers 7 are mounted upon the shaft 5 directly beneath the tripping fingers 100 so that the'lowcr sheet engaging portion .100 of each tripping finger Wlll. project into the annular groove or recess 7* of the under of the drawings. v

Cooperating with the under t'win rollers? are the auxiliary drop rollers 125'which are also arranged as twin rollers or as airs 'of inde endent rollers. These drop rollbrs 125 are eely journaled at 126 upon the forward ends. of rock arms 127 ivoted at 128 upon the downwardly projecting bracket arms 129 extending below the-comber operati shaft 35 and supported fromone of the main rackets which Is mounted upon one of the central frame pieces 12. Projecting rearwardly from each rock arm 127 is a finger 130 carry--' ing a laterally projecting pin or log 131 u on which is'pivoted the lower end of a ro or pitman 133 which is pivotally connected at its upper end with a rock arm 135 mounted upon a rock shaft 136 which passes through and is freely journaled upon suitable bearings in the main bracket.67 and an auxiliary bracket 137 secured thereto. The rock shaft 136 has secured to its opposite and 'gcars as above explained.

I a rock arm 138 to the free end of which at 139 is pivoted a downwardly projectin link 140' which is pivotally connected at its ower end with the rock shaft 51 by which the combing wheelie raised and lowered. From this ar rarigement it will be observed that when the combing wheel is raised away from the pile of sheets, the auxiliary twin drop rollers 125 will also be raised.

- It will be observed articularly with reference to Fi 1 ofthe' rawings that the leading ed e 0 the sheet which engages and actuates the tripping fingers 100 is firmly supported upon both sides of eaehtripping finger and positively fed by the under twin rollers 7 andthe upper twin drop rollers 125. This provides a very effective gaging edge. for actuatingthe trippin fin ers.

Extending longitu inall y of the machine,

at eaehside is a rock shaft -155journaied in bracket arms 156 extending down from the auxiliary frame pieces 12.. At the'forward end of each of these rock shafts is a rock arm 157 carrying at its upper end an antifriction roller 158,'which-operates in engagement with aface' cam 159, keyed to .the camshaft 20. Each of the rock shafts 1'55 carries a'horizonta'l rock arm which is adjustable longitudinally of the machine, and carries a weighted tail gripper 1 60 ofthesame construction as .fully set forth in my above named patents.

The following brief explanation will make clear the operation of my improved machine: It being understood that a machine embodying m improvements is provided with twosets 0 sheet combing mechanisms, each independently-controlled bya sheet actuated tripping device as described, the machine is started in operation and the combing wheels lowered .upon the top of the pile of sheets, the combing wheels being driven through the i In this normal 0 erativc'position of the machine, the spring eiiavating mechanisms for the combcrs are held out of action by the latching arms 63 and latching bars 60,- the rollers 91 being in peripheral contact with and driven by the constantly running rollers 81, and the tripdrop'rollers 8 are elevated awa from the ordin'ary under feed rollers 6, an the auxiliary twin drop rollers 125 are running in eripheral oontact with the under twin r0 lers 7. .The tail gri pers 160 are held out of contact with the pile.

The two combing wheels will continue to o crate until the forward ed e of the top s root in front of one of the com ing wheels 1s moved forward sufficiently to engage and actuate one of the tripping fingers 100. In a combing machine in which a number of the sheets at the top of the pile are gradually sepsee,

arated and shifted forwardly, the combing wheels operate but a moment to shift the top sheet" into registered position. The instant that the sheet engages one of the trip pin fingers, the actuated tripping fin er wi cause the plate or blade 106 connected the'rewith to enter between the rotatin' rollers 81' and 91, with the result that the ro' ler 91 will be raised sufficiently to cause latching arm 63 to'be movedfrom beneath the roller 64 of one r of the latching bars 60, which frees the'spring device and permitsjt toinstantly act upon the rock arm 51 for elevating the combing wheel away from the pile of sheets andarrests the action of the particular combing wheel upon the sheets. This "upward movement of the roller 91 under the action of the in t e rod or pitman 113, as shown in Fig. 4 of the draw'in s. 'This'action is immediatelyfollowed by't e same operation on the other combing wheel, as the ed'ge of'the sheet in rested by these independent sheet-actuated dril -Wings.

trippingdevicegthe sheet will be found to be in registered position in readiness for the operation of the delivery' drop roller .mechanism whic lf comes. intolay to feed: theregis;

tered sheet fromthe-pile of the feeding machine and deliver it to the printing re'ss folding machine or other machine whlc tie to operate upon theisheets'. In the normal operation of the feeding machine, it will be found that both combing wheels are thrownout of o eration'at approximately the same time,. t ere usually being but slight variations in the position of the sheets upon the pile-. Each of the auxiliary twin drop rollers 125 is moved into and out of operative position simultan'eously 'with the combing wheel .in. front of which it-o'pe'r'ates. As the successive sheets are engaged and fed off by the de livery drop roller mechanism, the tail grips 160 enuage the under sheet of thepile-just back oi the rear edge'of the top sheet or holding thepile in place. Coincident with the o eration of the delivery drop roller, the high portions of controllingcams 119 engage the antifriction rollers 118 of rock arms 116 and cause the upwardmovement of rods or pitmen .113 for elev'at n'gl the movable supports or' rock arms '67 of t .e tripping mechanism. When the rock arms 67 are raisedthe trippin fingers 100 will be sup orted above the' pat of the-sheet being de ivered, so as to entirel relieve the sheetfrom its engagement with the-"tripping fingers. This osition of the arts is shown in Fig. -5 o the n this action of the controlling cams, it will be understood that the first'ups Ward impulse of rod or pitman 113 ,takes up.

tripping finger is permitted by the slot 113 tiveposition, it being understood that snnultaneously with the return of the tripping mechanisms'to their normal 0' erative position, the cams 58 will forei ly rock the sleeves 50 to permit the combing wheels 40 to again fallinto operative engagement with the top of the pile of sheets, and to compress the springs and reset the latching mechanisms. There are two important advantages in the construction covered by my present application over the structure of my above named application Serial No. 386,602. In the first p ace the present structure is simpler and more economical to manufacture, and in the second place the improved structure permits reater rapidity'inthe delivery of sheets from t e machine because the action of moving-the tripping fingers out of the path of the sheets in a vertical direction is more direct than the-action in the-mace 'f e of said former application, in which t li' trippingfingers aremovcd upon their journals, 1

instrument out of operation, with a sheet at:

-tuated tripping finger supported in the path of sheets and arranged to trip said arresting means, a movable support for said tripping fingenand means'for periodically raising an lowering said tripping finger support for moving the tripping finger into and out'of the path of sheets.

2. The combination of a sheet moving instrument, means .for operating said instrument, and arresting means for holding said instrument out of operation, with a sheet actuated tripping finger supported in the path of sheets, a movable support for said tripping, finger, trippin means operated by said finger and arranged to' control said arresting means, and means for periodically raising said tripping finger sup ort and actuating said' tripping means in( ependently of sai linger.

3. The combination of a sheet moving in-' the lost motion. occasioned by tl1e'slot-l13 strui'nent, means for, operating said instru- With the exception of the operation of the I said arresting means including ment, and means for'arresting the operation finger supported in the tripp ng means movable support for sai and mechanism for" movable support an actuating saidtri ping means independently of said tripping ger.

5. The combination of a sheet moving instrument, meansfor operating said instru ment, and means for arresting the operation of said instrument including a-latching bar and a cooperating latching arm, vith means for trippingsaid latchin arm' mcludmg a tripping linger supporte ;in the path of sheets, a movable support for said tripping n1eans, and-cam actuated mechanism for periodically raising and lowering said movable support.

(i. The strurnent, means for operating said instrument, and means for arrestifv the operation of said instrument including a fatching bar and a cooperating latching arm, \vitlrmeans for tripping'said latching arm including a trip win iin er su orted in the )ath of sheets a 1 z: a PP 7 movable support for said tripping means, and mechanism for periodically raising said movable su port, and actuating said latching arm im ependently of said tripping finger.

7; The combination of a sheet moving instrument, in eans for operating said instrument, and. indans for arresting the operation of said instrument, a rock arm movable. toward and away from the sheet-support, sheet actuated tripping mechanism-mounted unm said rock arm, a tripping finger in el uded .in said tripping mechanism and ported by said rock arm in the path of sheets, and means for raising and lowering said rock arm.

8. The combination of a sheet moving instrument, means for operating said instru ment, and means [or ar'esting the operation of said instrument including a latching bar and a cooperating latching arm, a rock arm movable toward and away from the sheet support, sheet actuatml tripping mechanism mounted upon said. rock arm, a tripping finger included in said tri iping mechanism and supportedby said reel arm in the path of sheets, and means l' or periodically raising and lowering said rock arm and tripping said latching arm independently of said tripping finger.

eriodically raising said combination of a sheet -moving i n-i sup- 9.- The combination of a sheet moving instrument, means for operating said instrument, and means for arresting the operation of said instrumentincluding latching mechanism,'a rock arm movable toward and away from the sheet support, sheet actuated tripping mechanism mounted upon said rock arm, a tripping finger included in said tripping mechanism and's'upported by said rock arm in the ath of sheets,-and means for raising and l dweling said rock arm, includ ing a part adapted to engage and actuate said latching mechanism independently .of said tripping finger.

10. The combination'of a sheet moving instrument, means for: operating said instrument, and. means for arresting the operation of said instrument including a latching bar and a cooperating latching arm, a rock arm movable toward and away fr om the sheet support, sheet actuated tripping mechanism mounted upon said rock arm, fin er included in said tri ping mechanism an supported by said roe arm in the path of sheets and means for raising and lowering said roc arm including means of engagement with said latching arm.

a tripping -11. In a-paperfeeding machine, the combination o a sheet moving instrument, means for operating thesheet moving instrument, means for arresting the operation of said instrument, a rock arm movable toward and away from the'sheet support, a latching arm mounted upon said rock arm and controlling said arresting means, sheet actuated tripping mechanism mounted upon said rock arm and including stripping finger su )POItBd normally in the path of sheets, an means for raising and lowering said rock arm.

12. In a apcr feeding machine, the combination 0' a sheet moving instrument, means for operating the sheet moving instrument, means for arresting the operation of said instrument, a rock arm movable toward and away from the sheet support,-a latching arm mounted upon said rock arm andcontrolling said arresting means, sheet actuated tripping mechanism mounted upon said rock arm and including a tripping finger supported normally in the path of sheets, means for raising and. lowerim said rock arm, and means o' 'ierated by said raising and lowering means for trippingsaid latching arm independently oi the. sheet actuated tripping finger. V,

13. in a paper feeding machine, the comblnuiion of a sheet moving instrument, means for operating the sheet moving instrument, means for arresting the operation of said instrument, a latching bar controlling said arrestia :means,'a rock arm movable toward and away from the sheet support, a latching arm mounted upon said rock arm and cod crating with said latching bar, sheet aetuatei tripping mechanism mounted upon said rock arm and including a tri ping finger supported normally in the pat of sheets, means for raising and'lowering said'rock arm,

' "and meansof engagement between the-raissaidarresting means, a movab e sup (ill - arm connected with said instrument, means nprmall restraiping said arresting-means, a movab e-support a;

rock arm mounted uponsaid movable "s11 p port and 'arrange l'to trip "sa'idtarre's'ting' means, sheet actuated meansmountedupon', said movable support for operatin said rock arm,means for raising saidmova' I and means actuated bysaid'raisingimeans:

'said "latching-arm, sheet actuated means for opcrating saidr'ock arm.

15.' The'combin'ation of a sheet rn'oving-in-.- 'strument, means for. operating said ineti u?- ment, means for arresting the operation ofsaid instrument; a latching ating latching arm norma arresting means, "1 movable {sup which said latchin arm isjourna ed, a'ro'ck said latching arm, sheet- --said -instrun1ent,"a latching bar controlling actuated means mounted upon said movable the etching arm, means for raisingsaid movable support, and means actuated-by said raising means for operating said rock arm, 16. The combination of a sheet-moving 1nstrument; means for operatmg said instrument, means for arresting the operation of including a reciproeatin rod or pitman suit-' ably' connected therewit and a connection between said rod or pitman and said rock arm, i

'17, The combination of a sheet moving'instrument, means foroperating said instru ment, means for arresting the operation of said instrument, means normall restraining ort, a rock arm mounted upon said mov'a e sup port and arranged to trip said. arresting meanasheetactuated means mounted upon said movable support for operating said rock arm, a reciprocating rod or pitman having pin and slot connection with said movable Sup ort and pin and slot connection with sau rock arm, and means for operating said rod or itmarL 18; ..he combination of a sheet moving instrument, means for operating said instrument, means for arresting theoperation'of said instrument, ii-iean's normally restraining said arresting. means, a movahie support, a

. g lowering means'and the'latehing a 'm' for trip 11 g said latchingarm inde nd upr rs bar and a coo'per 1y restraining. said-- i upew "means for operating the sheet moving instrusupport for operating said rock arm to trip supported normally in the path-o 'means' for raising and lowering said rock arm. .1

rock arm mounted upon said movable support and arranged to trip said arresting means, a tripping roller journ sled upon said rock arm, a; tripping finger journaled upon said movable support, a tripping blade connected'withthe tripping finger, a rod or pitm'an having lost motion connections with said rock arm and said movable support, and

' 19. The combination of a sheet moving in stru ment, means for operating said instru- .Q-mcnt, means'for arresting the operation of said instrument, a latch'in' bar and a cooper- 'atin'g' latching arm norn nilly restraining said arresting means, .a -m0val' 'le sup ort upon which said latching'arm is journal d, means for limitingthe movement of said'sup ort in one direction, a rock arm cor'mecte with mounted upon said movable sup ort for operating said"v rock arm to trip the latching arm, and means for raising and lowering said movable support.

hination o a"sl1e'et' moving instrument,

ment, means for arresting the operation of said arresting means, a rock arm movable toward and away from' the sheet su port, means for limiting the movement oi saidrock arm toward said sheet support for susa latching arm mounted upon said'rock arm and cod erating' with said latching bar, sheet actuated tripping mechanism mounted uponsaid'rock arm and including a tri cats, and

21; In a aperfeeding machine, the combination oi a sheet moving instrument,- n 1eans for operating the sheet moving instrument, means for. arresting the operation of said instrument, a latching bar controlling said-arresting means, a rock arm movable toward and away from the sheet su port, 'means for limiting the mov .nent 0 said rock arm toward said sheet support for sus taming said rockarm in its lowered position, a latching arm. mounted upon said rock arm sheet actuated tripping mechanism mounted upon said roo'k arm and including a trip in finger supported normally in the pat- 0 sheets, means for raising and lowerm said rock arm, and means operated by saiil'raislatching arm independently of the sheet actuated tripping finger. 1 I

22. The combination of a sheet movin instrument, with leans for operating said in stru'ment, including a rotary shaft, a rook "arm mounted upon said shaft, a constantly running roller journaled upon said rock arm,

gearing between said, constantly running 20.;In a'paper feeding machine, the com I a cam arranged to actuate said rod or pitman.

taining said rock arm'in its lowered position,

Sping finger and cooperating with said latching bar,

ing and lowering means for tripping said roller and said shaft, a cooperating tripping roller, an arm journaled upon said rock arm and supporting said tripping roller in operative relation to said constantly runnin roller, means for arresting the operation 0? the sheet movin r instrument, a coiiperating latching bar ant latching arm normally restraining said arresting means, said late-hing arm being connected with the supporting arm of the tripping roller, a sheet actuated tripper mounted upon said rock arm and supported thereby in the path of sheets, and

means for raising and lowering said rock arm.

23. The combination of a sheet moving instrument, with meaus for operating said instrument, a rock arm, means for limiting the movement of said ,rock arm, a constantly running roller journaled u on said rock arm, a cooperating tripping ro ler, an arm journaled upon said rock arm and supporting said tripping roller in operative re ation to said constantly running roller, means i' or arresting, the operation of the sheet moving instrument, a cooperating latching bar and ,latching arm normally restraining said arrestm r means, saldlatelung arm being connecte with the supporting arm of the tripl ping roller, a sheet actuated tri p per mounted upon said rock arm and supported thereby in the ath of sheets, a rod or pitmanformed with s otls which engagethc shafts or journals of said tripping 'rpller and constantly running roller, and a cammechanism for operating said rod or pitman.

24. The combination of a sheet moving instrument, with means for operating said instrument including a rotary shalt, a rock arm mounted upon said shaft, means for limiting the movements of said rock arm, a 40 constantly running roller journ'aled upon said rock arm, gearing between said constantly running roller and said shaft, a coope|'uting tripping roller, an arm journaled upon said rock arm and supporting said trippmg'roller in operative relation to said constantly running roller, means for arresting the operation of'the sheet moving instrument, means normally restraining said ar- -resting means, a sheet actuated tripper mounted upon said rock arm and supported thereby in the path of sheets, a rod or pitman formed with slots which engage the shafts or journals of said constantly running roller,

and aeam mechanism iopoperating said rod or pitnum. V

'lALBO'l UFX'IER.

Witnesses:

A. (J. Hmvmoxn, E. ii. 0. lqmnoms'r.

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