US886117A - Paper-feeding machine. - Google Patents

Description

No. 886,117. PATENTED APR. 28, i908. T. c. DEXTER.

PAPEE EEEDING MACHINE.

APPLICATION FILED AUG. 1,1907. l

6 SHEETS-SHEET 1.

PATENTBD APR. 28, 1908. T. 0. DEXTER.

@M6 M x Smm@ MMI NKNRIQ mi I WW1/mma@ PATBNTED 11111.28, 1908.

T. c. DEXTER. PAPER 111511111@ MACHINE.

APPLICATION FILED AUG.1.1907.

5 SHEETS--SEEET 3.

T. C. DEXTER.

PAPER FEEDING MACHINE. APPLIUATION FILED AUG. 1.1907.

5 SHEETS-SHEET 4.

WMM/@Joao M me/whoa, y?

35H1@ CCOMWS L@ I PATENTED APR. 28, 1908.

` PATENTED APR. 2a, 190s. Gf DEXTER PAP-BR 'PBEM-NG MACHINE. .APPLIGATION FILED UG. 1.190?.

a 'SHEETS-SHEET 5.

l granted to me August 28th, 1906, and No.

" y'presentinvention may best be considered in trolling devicesin machines such as -covered bythe said patents.,

they are also ap licab'le to other forms of )feeding machines, and I would have'it understood at the outset that'I do not intend to adoted for I strument and means forraising and low saiL controlling member by ithe action of the she'et for tripping the co nf trolling member .and permitting or` -causing1f;the elevating 552 i A I new and useful Im rovements in Paper- 'as ec' cation.v

l sheets is acted upon by combing feeding de- -any machine arranged to operate upon the 'ated tripping mechanism for controlling the TALBOT DEXTER, or'rEAnL Riynitifgnnw YORK..

PAPER-FEEDING MA'C'IN'E.

Specicatpn of Letters Patent.-

Patented Aprn 28,3908.v

Application mea August 1, 1907. serial No. 386,602.

To all whom it may concern:

Be it known that I, TALBoT C. DEXTER', a citizen of the United States, and a resident of Iearl River, inthe county' of -Rockland andl State of New York, have invented certain Feed'm Machines, o which the following is y present invention relates generally'to im rovements in paper feedin machines, an particularly to feeding mac ines of the sheet combing type', in which the pile, of

vices which comb or feather out the top sheets of the pile to gradually separate the successive sheets near the to so they may be drawn from the pile periodlcally and fed 'to individual sheets. Machines of this type are set forth. in Letters Patent No. 829,854,

850,821, granted April 16th, 1907, and my the light of an improvement upon the mechanisms for raising and lowering the sheet combing vdevices and the sheet actuated'con- The purpose of mypresent invention is to produce a simple'an sensltive sheet actuoperation of the sheet moving instrumentsyin a paper feeding machinet The present im rovements are especially valuable as part o? a feeding machine of the type shown in my above named patents, but

limit my invention to its application to the particularl t y pe` of. machine which I have 1e purpose of illustration in this apgication.

roadly considered, my invention consists, in combination with a sheet moving inthe instrument with reference to a sheets, of a movable member controlling elevating means for the sheet moving inst ment, anda sheet actuated blade or plat, ada ted to be thrown into engagement with means to operate;- i In',(.iariryingmy 'inyentidn' into practical spring use in the, ty .e oflmachine shown my above named atenta I have provided `a paper feeding machine with two independently acting sheet moving vdevices (preferably sheet combing wheels), an independent device for raising each combing wheel' out o contact with the pile'of sheets, ysuitable cam mechanism for'loweringv the combin Wheels into active relation withthe pile o sheets, an independent latchin device for re` stfaining'each spring device jv' enthecomb'f ing wheels are'operatm'g, arock arm prof jecting from each latchlng ydevice and supandcause the' leasing the latching below the plane of the sheet adjacent to the sheet-actuated tripping finger so as tormly support the advancing edge of thesheet' whenit engages and actuates the tripping finger. The u per twin rollers are prefer. ably arrangedin the form of d ro rollers under the control of mechanism w ich is actu, ated by' the elevating means of the main sheet moving instrument so that saidv upper d-.byia 'sheet into the bite- ""d thereby between twin rollers will maintain their feedin relation with the advancing sheet only whilethe main feeding instrument is operating. These] rollers not only assist in the final registering movement of the sheet, but they 'maintain-5 the sheet in proper position for the engagement of the main drop rollers which feed the sheet from .the pile;

In addition to the sheet control of the tripping blade or plate, I provide a cam 'operated mechanism for ;periodically actuating v,zd

`triipping bladeuo'rfplate, in /the eventoffthe a ure of thefzshee't to operate the same,l and also for the purpose of raisin the tripping;

finger 'out of the path ofthe s eets toa 4low e I therefrom, and to reset the trippin/g'migers v the sheets to pass od without interet" in readiness for another sheet af/ter a'zshet has com letely left the feeding machine?" In orer that my invention maybe. fully understood, I will first describe the same with reference to `the accompanying drawings, and afterwards oint out the novelty more particularly in t e annexed claims.

Fi ure 1 is a detail verticaltransr-.rerse sectiona elevation of one half of a paper feeding machine embodying my invention, the other half of the machine being omitted. Fig, 2 is ato plan view of the same.' Fig. 3 is a ver tica longitudinal sectional'view of the same, taken on the line awa of Figs.' 1 and 2, looking in the direction indicated' by the arrows a, a. Fig. 4 is a similar iew taken on the line b-b of Figs. 1 and 2, looking inthe direction indicated by the arrows l), t. Fig. 5 is a detail vertical lon itudinal sectional view, on a larger scale, ta en on theline c-c of Figs. 1 and 2 and lookin f in the direction indicated by arrows, c, c, s owing the main f.. parts intripped position, and omitting some parts for clearness.

Sheet feeding machines of the type to which my present invention relates are 'provided with two sets of sheet moving devices arranged to operate at opposite sides of the machine. In the accompanying drawings, l have shown only one-half of the machine, including only one of these sheet moving devices, but it will be understood that two such devices of the 'same construction are emloyed, each being independently controlled liy a sheet actuated tripping device, as hercinafter explained.

The frame-.work of my improved machine may be of any suitable construction to properly support the working parts hereinafter referred to.

ln the drawings, .1 represents one of ,the vertical side frames. The side frames are uitably braced to make them rigid by means ofstay rods y3, and other frame parte not shown, and within the frame is provided a suitable table or support (not shown) for carrying apile of sheets, indicated by the reference letter l. Atk the front of the "ilo of sheets, l. provide a series of vertice.. guide rods'or strips, (notl shown.) for confining the pile. I j

5 is a constantly driven shaft bearing the lower f'eed rollers 6 and 7, said shaft 5 being braced at intervals by suitable bearing branle ets, (not shown). naled in the roch arn'rs 9, mounted upon the transverse rock shaft 10. T .e drop rollers t are supported above two or more of the'un l der feed rollers 6, with which they coperate. ve rock shaft 1() extends transversely of the l hine, above the constantly running lower t 5, and is suitably braced between its s by two or more bracket arms, not shown, rigidly secured to theauxiliar longi- 60 tudinal frame pieces 12. The rock sliaft l() is o 'era'ted by any of the usual forms of mec anism, such, for instance, as shown in m 'above-named patents, whereby the drop ro ers 8' are periodically lowered and raised into and out of engagementwith the coperscrew 44.

8 are drop rollers jour secar? ating under rollers 6, for performing function of feeding off the successive'. sheets.'

The main cam shaft 20 extends transversely of the machine and is suitably journaled in the main side frames 1 and the auxiliary longitudinal frame pieces 12. This shaft 20 is provided with a driving pulley 25 as shown, or it may be driven in any other suitable manner, said shaft being the shaft from which all other parts of the machine are driven.

The cam shaft 20 carries a-large gear 26,"

which meshes with a smaller gear (not shown) secured to a larger ear 28, journaled upon av jecting end of the constantly rotating `eed shaft 5 above referred to.

named patents.

A This gearing is l clearly shown. and described-1n my above- 40 is one of a pair of combing wheels. Y

Each of these combing wheels is freely journaledat 41 upon a rock arm 42, w ch is freely journaled upon a sleeve 50 which is in j turn journaledl upon the shaft 35. This shaft 35 haskeyed to it a ear 45 which meshes with a` gear 46 secure( to the combing wheel 40, by which the combing wheel is constantly rotated.

Projecting from one face of the combersupporting rock-arm is an integral lug 43 in which is mounted an adjustable tappet 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. By 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 mechanism which is normally restrained by a latching device which is periodically released by the sheet actuated tripping device hereinafter explained. y The rock arm 51 is moved in the opposite direction to allow the combing wheel to move by gravity into engagement with the )ile of sheets by the action of a cam as wil now be explained.

Sleeve 50 has at its end, adjacent to the rock arm 51, another rock arm 55 to which is pivotally connected a pitman 56, formed with a yoke-shaped upper end, which straddles the shaft 20. lhe shaft 20 carries a eripheral cam 58, which engages an antiriction roller 57 jcurnaled upon the pitman 56, whereby the rock arm 55, sleeve 50, and linger 52 are movedv once in each revolution of the shaft 20 to reset the spring and latch- 'bracket 67, while the drivin arni 63 freely journaled upon'a bolt 66l mounted in bracket 67 which is secured to one of the frame pieces 12. i When the latching arm 63-is in engagement with theV antifriction roller 64, -said arm will be in proper position .to -maintain the downward thrust of the latching bar to withstand the pressure of the s )ring device resently to be referred to), wit the result t at the combing wheel will be allowed to rest in itslower 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 being normally under the control of the sheets fed from the pile.

A rod 7 0- i-s pivoted at 71 to the rock arm 5 1 and .proj ected Vtherefrom vertically through the guide bracket 62. `Surrounding the rod 7 Oand confined betweena collar 7 0n above the rock arm 51 and the'guide bracket 62 is an expansion spring 7 5ivhich` tends to throw down the arm 51 and move up the finger 52` for raising the coniber away from the pile of sheets. This siring tendency is normally restrained by t e latching arm 63, and the latchin bar 60.

Turning now to the sheet controlled tripping mechanism forreleasing the coiiiber elevating means, it will be observed that a short shaft 80, freely jouriialed in a forward extension ofthe bracket 67, carries the rubber faced roller 81 and a relatively large gear wheel 82, said roller `81 and gear 82 being rigidly secured upon ,the shaft so as to revolve therewith. The 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 journaled at 86 and S7 upon the gear of said train is keyed to the com er operating j shaft 35. By this mechanism the roller 81 is caused to travel constantly in the direction indicated 'b the arrow in Fig. 5 of the drawings. F'ree y journaled upon the -bolt 66 which su'pports the tripping arm 63 is a roel; arm 00 projecting forwardly and carryin in its forward end a freely journaled rub er faced roller 91 which is sup ortedv directly above the constantly running ower roller S1, and, in the normal'operative position of the machine, runs in peripheral contact with and is driven"lpy said roller 81. The for.-v wardly projecting rock arm is formed hub 92 which journals u on the bolt 66, and

jectin'g arm 93 formed with the rear of the tripping arm 63. formed. With-fa horizontal slot -95 through which passes an adjusti-n 4set screw 96 which 'is threaded into a suita le opening formed in the trip arm63- The purpose of the slot 95 and set screw 96 is to adjust therelation of tripping arm 63` and roller rock arm 90v so as to accurately 63 beneath tlie anti ar, when the roller 91 is in periphe'r j con'- tact` with. the roller 81.

of the tripping arm 63 'moving' too f'ar forward beneath the roller 64 (Which mi ht render it difiicult to tri the arin 63 from eneath the roller) I provide a stop late or lug 60 upon the trippingbarv.. iis lug 60 projects across t e path of the Stripping arin 63 and limits its forward movement so as to accurately arrest it vertically beneaththe antfriction roller 64.

It will be understood from the description thus far given that thetri-pping ann 63fisf tripped from beneath the roller 64 on'the tripping bar 60' by the upwardinovement of the rock arm 90. This tripping action is' accornplished 'by means of, a sheet, actuatedv tripper which will now be eX lained.

1500 is the tripping finger c e ending from. a tubular hub portion 101 Wlhich is freely journaled upon a in or bolt 103 projecting horizontally and aterally frorna'boss 102 which is securedto the face of a dowi-iw'airdl extension 67a of the bracket 67, b r whieh said journal pin 103 is supported. T e lower end of the tripping finger is shaped seas. to present a vertical face 100a across the plane of feed of the sheets, when the tripping lfinger is in tripping position. The hub portion 101 of the tripping finger has a recess-at 101a into which Vrojects a limiting pin 102a extendingfrom t e end of the boss 102, forA the purpose of limiting the movements of thetripping finger into and out of operative position. Projecting upwardly from and formed integral with the hub portion l101 of the tripping iinger, is an arm which carri-es at its upper end a laterally' projecting wedgeshaped blade or plate 106. The journal pin 103 is directly beneath the short sha-ft 80, and the length of the arm 105 is suchthat the blade or plate 106 will be` presented'in proper positionto pass over the up er periphery of theconstantly rotating ro ler 81,

pilesentl the tripping arm -integral With or rigidly secured to a tubular "cti'onroller, 64 of trip- 80 ping bar 60, for supporting saidtri ping The movement of' lthe roller 91- into contact with the roller- 81, moves the tri ping arm v63 forwardly tov bring it beneath .t e antiriction roller 6401i the tripping bar. To preventthe possibility fio the roller 81 being designed to rictionally engage the under surface oi the blade 106, when it isf moved into contact therewith, for the purpose of causing said blade to pass over' the roller 8l andnnder the roller 91 for velevating roller 91 and rock shaft 9i) for tripping the arm 63. lt will be understood that this action takes place whenthe leading Vedge/of a sheet moving from the pile engages `the tripping llinger and moves the blade or `plate-106 into the vbite of the rollers 81 and 9.1.

11() is a `rock arm freely journaled upon the bolt 10B-along side of the hub 101 of the .tripping iinger. integral with and projecting up from its hub port-ion, a short rock arm 111 formed with laterally projecting lingers 112, which are presented in front and rear of the upwardly projecting arm which carries the plate or iblarle 106. These fingers 112 serve to con` l-incthetripping finger 100 and arm' 105, and tocause them. to operate under the action of the ycam under certain conditions which will be hereinafter explained. A rod or pitman 113 is -pi-vo'teda't 114 to the rock arm 110 and extends upwardly therefrom and has its upper end pivoted at 115 to the forward end offa v rock arm 116 ournaled at 117, and carry'- .ing adjacent to its endA a freely journaled antifrictionroller 1.18 which runs in peripheral lcontact with controlling cam 119 keyed 'to `the main cam shaft 20. .ajmai'n' high portion 1.19u for about on`e-half of itscircumference, a low portion 1191 for about one quarter oi its circumference,v and an intermediate low portion 119c for the remaining one quarter oi" its circumference. 'll-he cam travels in the direction'indicated by the arrow in Fig. 5 ol. the drawings. l/Vhile the antiiriction roller 11S is in contact with thel 'high portion 11WL of the cam, .the

tripping iinger 100 will 'be elevated above the path of the sheets to allow the free passage lof a registered sheet. from thefeeding machine. When the roller 118 passes from the high lportion 119a of the cam to the extreme low portion 1 19h, the tripping linger and controlling 'blade or Aplate are returned to starting position, the tripping linger being moved into the pathnoil theslieets, and the blade or plate being lpassed between the rollers 81 and .91 to yits position Iin front oi said rollers. When the roller.118 is on theintermediate portion 119" of thel cam, the tri )ping finger ism tripping position, the rear 'inger 112 of rock arm 1 11 havingbeen moved back out of lengagement with arm 105 by the lii't of roller l 1.18 from the lower portion 119h to inter` 'rnerliate portion 119C of the controlling cam. ln this movement from the low portion tothe intermediate portion of the controlling cam,`

the trip linger 10() anrlf-blade carrying arm 1() 5fare not moved,*"but the described action of thecontrolling rockl arm 111 is necessary 'to shift the rear finger 11'2 away from arm same result can, of course, be accomplished This rock varm has formedv central frame pieces 12.

The cam 119 has seem? 105 to free 'the tripping linger prepara'tory to the autcmatic'tri ping actlon lof t e sheet.

As described a ove the lower `constantlyT running shaft is provided With the ordinary under-feed rollers 6 Iand the special under.- leed rollers 7. These rollers 7,tWo of which are provided in the machine, are in the form of twin rollers, with an annular groove or recess '7a separating ythe two parts. The,

"Z5 by mounting two yseparate :rollers upon the shaft 5 with `a suflicientspace between'them. The twinrollers 7 are mounted .upon VIthe shaft 5 directly beneath the Ytripping lingers `10() so that `the lower sheetvenglagingportien 10()a of each tripping finger l.projec:t-iinto the 4annular kgroove or recess 17 :of athejnnder twin rollers. This is clearly Ishown .in Fig. L oi the drawings. 'Y

Cooperatingwiththeiundertwin-rollersare .18B the auxiliary drop `rollers which are also arranged as twin rollers or as pairs I'oi independent rollers. lflwhes'e vdrop rollers 1125 :arefreely journaled at 12'6 vupon fthe 'forward ends of rock arms 12.7 pivoted :at 11.28 :upon the `downwardly kprojecting bracket arms 129 extending below vthe com-ber operating @shaft 35 and supported. from =one of Ithe main brackets which is mounted upon one ofthe Projecting :rearwardly fromeach rock'arrn .12-7 is .a 'nger '-130 carrying a laterally projecting pin `or 'lug :13'1 which is pivotally connected at ,132 atol the lower end of a yrod or ypitman 138 which yis pivotally connected fat its .upper end i134 with ya rock armv 135 vmounted upon a rock shaft 136 which passes through :and Lis yfreely j ourn aled upon suitable bearings inthe main bracket 67 `and an auxiliary bracket "13.7 5secured thereto. The rock `shaft 136 has se.. cured to its opposite end airock arm 13815130 the free end of which -at 1-'3-9 ispivotediafdownwardly yprojecting'link 140 which is .pivotally ATOI) p connected at its lower-end with the rocikfshat' 51 by which 'the combingswheel iis raisedfancl lowered. Frornjthis arrangement lift will'ibe observed that when one of the combing` wheels is raised away from the :pile of sheets, the cooperating auxiliary'tw'n Idrop rollers 125 will also be 'raised, and whenlt'he :said combing wheel `is lowered into operative een# gagernent with the pile', said twln drop rollers 125 will be floweredinto engagement with under twinrollers 7.. It will ofcoursahe e understood that the .arrangement and pro- 1'20 portions of the rock shaft, `rock `arms l:and inks, controlling drop .rollers 125 aresuchfas to properly harmonize their action with :the rest 'of the machine. This `action l.be more l'ully ex lained in connection 'with `:the operation of t e machine.

lt will be observed particularly with `reerence to Fig. 1 of .the :drawings 'that the leading edge of the `sheet which engages fand actuates the ytripping 'fingers -110.0 is rmdyl'ae supported above and below upon both sides of each tripping finger and is positively fed by the under twin rollers 7 and the upper twin drop rollers 125. This provides a very effectivegaging edge for actuating the tripping fingers.

Extending longitudinally of the machine, at'each side is a rock shaft 155'journaled in bracket arms 156 extending down from the l 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 antifrictiou roller 15S, which operates in engagementwith a face cam 159, keyed to the cam shaft 20. Each of the rock shafts 155 carries a horizontal rock arm which is adjustable longitudinally of the machine, and carries a weighted tail gripper 160 of the same construction' as fully set forth in my above named atents.

The following brief explanation will make clear the operation of my improved machine: It being understood that a machine Iembodying my improvements is provided with two sets of sheet combing mechanisms, each independently controlled by a sheet actuated tripping device as described, the machine is i' started in operation and the combing wheels *lowered upon the top .of the pile of sheets,

inl-Figffi of the drawings. position of the machine, the main drop rollers 'Sare elevated away from the ordinary under the combing wheels being driven through the gears as above explained. In this normal operative position of the machine, the spring e evating mechanisyns for 'the combers are held out of action bythe latching arms 63 and f latching bars 60, the rollerslQl being in pe ripheral contact with and driven by the constantly running rollers 81, and the tripping fingers .1: with their controller blades or platesfl'OG being in normaljposition as shown In this starting feed rollers 6, and the auxiliary twin drop rollers 125 are running in peripheral contact with the under twin rollers 7. The tail grippers 160 are held out of contact with the pile..

- t will bc observed from the relative position of cams 58 andV 119 in Fig. 4 of the drawings thatcoincidental. -wift the lowering of the com ing wheelsinto operative engagement with the pile of sheets, the intermediate portions 119" of cams 119 come into engagement with the antifriction rollers 118 formelieving the arms 105 of the tripping fingers from the engagement of thel rear fingers 112 of rock arms 111 so that when the combing wheels start to'act on the sheets, the tripping fingers.

are free to move under the action of the lead- 'ing edge ofthe sheet which is being se arated and fed forward ,from the pile.' e two combing wheels will continue to operate until the forward edge of the top sheet in front of one of the combing wheels is 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 to of the pile are gradually separated land shiftI ed 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 tri vping fingers, theJ actuated tripping finger wil cause the/plate or blade 106 connected therewith to enter be-V tween the rotating rollers 81 and 91, with the result that the roller 91 'will be raised sufli-I from beneath the roller 64 of one of the latching bars 60, which frees the sprinigdevice and permits it to instantly act upon theroc l arm 51 for elevating the combing wheel away from the pile of sheets and arrests the action of the particular combing wheel u 'on the sheets, This action is immediately ollowed by the same operation on the other combin wheel, as the edge of the sheet in frontl oI such other combing wheel reaches registered position and actuates the other tripping fingerf 7When both combing wheels have been arrested by these independent sheet actuated tripping, devices, the sheet will be found to bein registered position ir, readiness for the operation of the delivery drop roller"i InechanismLwhich comes into pla -vs' ciently to cause latching arm'. 63 to bje moved the registered. sheet from the pile 0 the fee'd' ing machine and deliver it to the printin""' ressfoldingmachine or other machine which .A

vsheet against the tripping fingers, this arrangement is desirab e as providing means for maintaining -positive hold upon the sheets up to the moment of.l engagement of the-main delivery drop essere. Aspire sus.' cessivesheets are engaged and fed ed by the" delivery drop roller mechanism, the tail grips 1'60 engage the under sheet of the ile just back 0I holding the pile in place. Coincident with the operation of the delivery drop roller mechanism, the high portions 119a of con# trolling cams 119 engage the antifriction rollers 118 upon rock arms 116 and actuate' the rock arms 111 for causing the forward fingers 112 to positively engage the arms 105 for movingthe wedge blades or plates '6' rearwardly and the tripping fingers forwardly to place the trip ing iingers'outof the` of thesheet being elivered. This osi- .tionof the parts is shown in Fig. 5 e' the the rear edge of the top s eet for i ico ere usually be'-v ,rollers 81 and91.

' Wheels 40 to again fall into drayvings. The 'parts of the machine remain" in this position until the'sheet has entirelypassed beyond vthe tripping finger-a vs fhen by the arrival of the extreme loi/v porn tions 119" of the cams 119 beneath the lantifriction rollers 118, the tripping fingers are returned positively to their operative positions in t e path oi the sheets, and same movement the blades or plates 106 are returned to normal position in front of the -tripping fingers and allied parts are returned to t eilt-normal positions, the cams 58 forcibly rock the sleeves 5() to permit the combing ment With the top of .the pile of sheets, Which action at -the same time compresses the sprin s 75 and resets the latching mechanisms,. 't 'e latching arm 63 moving back beneath the antifriction roller 64, and the rollers 91 dro ping back into peripheral enof mechanism after a sheet has Itrvill be understood that the provision of lost. .motion between the controllin rock by the I At the same time that theI operative engage-- arm 111 and the arm 1 05 of the tripping dej vicey is for the purpose of providing means for'positively actuating the tripping device onceevery'revolution of the cam shaft 2G to move the tripping linger 10() out of the ath .the sheets, and to reset this part o the at` the Sametime allow for been fed oil", and l freedom of mo.- i tion of the tripping device under the action of. afsheet independently of the cam actu ated.

controlling mechanism.

So as to maintain the proper timing .oi the feeding mechanism With the delivery drop "roller mechanism, the controlling cams 119 `Willonc'ein every revolution of the 'shaft 2Q,

cause the tripping devices to rperate for actuating the latching devices. i this were not done, it Will be clear that the sheet would be deliveredto the tripping iin ers at a time when the tripping iingers cou d not` operate because the cooperating par-ts of the mechanism would not be in proper position, and even ifthis did not happen, there Would ment and thereby actuate s'aidmovab v be constant danger of deliveringsheets to the delivery drop roller mechanism at improper f times.

invention as a plied to a feedin machine of the sheet comA in derstood that I o not intend to limit the scope of my invention to this application, but consideriny invention'suihciently broad and'novelv to include its application to any form of paper feeding mac ine in which the type, I Woiil have it unf said instrumen t, a movabe -maticmeans said instrument, a movable member control-- said arresting means, an antifr-iction.

active voperation of a sheet moving instru seam ment of an construction is controlled by .the position oiY the sheet acted upon through some suitable forni of tripping deviceinvolving the principle above set orth.

- lll/*hat l claim is; 4 1. ln a aper feeding machine, the-combination oi a sheet moving instrument, automatic means for arresting the operation. ofsaid instrument, a movable membernormally restraining said instrument-arresting means, and a sheet-actuated Wedging blade or plateadapted lto move into engagement with and thereby actuate said movable restraining4 member and release the arresting means.

2. in a paper feeding machine,Iv the com bina'tion of a sheet moving instrument, means for operating said instrument, means forraismg the said instrument intoinactive po-A` sition, av movable member normally restrain@l i'ng said instrument raising means, and a sheet actuated Wedging blade or. late adapted to move into engagement with) and there-` by actuate said movable restraining member to release and permit the operation of'theinstrument raising means.

3. In a paper feeding machine, the combination of a sheet moving instrument, means:

for operatin r said instrument, means for raising the said:7 A tion, a movableinember normally'restraining said instrument raisingV means, blade or plate adapted to move into en straining member, and a tripping finger supported in the path of sheets and-suitably c0111-- nected with said wedging blade -or platef'to actuateA it.

' 4. In a paper feeding machine, 'the'coma Wedging; age-l e rev instrument intok inactive posi-'1 l bination of a sheet moving instrument, auto l':

matic means for arresting the operation of ling and normally restrainin said instrunient arresting means, a fixe member adjacent to said movable member, and a sheet-y actuated Wedging blade or plate adapted to be projected between said movable controlias 'f said instrument, a movable member control- .ling member and said fixed membei to thereing means.

'5. In a 'aper feeding machine, the combination ofpa sheet moving instrument, auto-- matic means for arrestin the operation 'of member controlby operate the former and release the arrestl iisv ling said varresting means, an antifrictionl roller upon said' movable member, yand a sheet-actuated Wedging blade or late'ada t WhileI have illustrated and described my ed to move into engagement Wit i said ro ler and thereby operate said controlling inemlin rol er uponsaid movable member,` a coper- 1251; sheet moving instrument, autoy .lisa

sean? ating roller journaled upon a fixed bearing adjacent to said movable controlling meinber, and a sheet-actuated wedging blade or platepadapted to be projected between said rollers and thereby operate said movable f member and release said arresting means.

7. In a paper feeding machine, the combination of a sheet moving instrument, means for operating -said instrument, means for raising and lowering the said instrument, a

movable member 'controlling the o eration of -i'or operating said instrument, means for raising and lowering the said instrument into and out of operatioiua movable member controlling said raising. means, a fixed member adjacenty to said movable member, cooperating rollers ournaled upon the movable and fixed members, and a sheet-actuated wedging blade or plate adapted to be projected between said rollers for/operating said movable member andpermitting the instrument raising meansto operate. i

9. The combination oi a sheet moving instrument, means for operating said instrument, means for arresting the operation of said instrument, means normally restraining said arresting means, and a sheet actuated Wedgingblade or plate adapted to move into engagement with and thereby actuate said restraining means to permit the arresting means to o crate.

10. The com ination of a sheet moving instrument, means for operating said instrument, means for arresting the operation of said instrument, means normally restraining said arresting means, a pair of rollers operating in peri iheral Contact, a movable support Vfor one o' said rollers arranged'to actuate a said restraining means, and a sheet-actuated wedging blade or plate adapted to be interposed between said rollers and thereby actuinstrument, means for operating said instru-` ate saidmovable support.

11. The combination of a sheet moving instrument, means for operating said instrument, means for arresting the operation of said instrument, including. a latcliing bar and a coperating latching arm, a rock arm connected with the latching arm, an antifriction roller j ournaled u `on said rock-arm, and a sheet actuated blade or plate adapted to engage said antifriction roller and thereby disengage tiie latching arm from the -latching bar.

12. The combination of a'sheet moving 'journaled u on a ment, means for arresting the' operation of said instrument, including a-.llatching bar and a cooperating latching arm, 'a roller xed bearing, a lrock arm rejecting rom thelatching arm, an antirriction roller journaled upon said rock arm' and supported thereby in dperi heral Contact: with said fixed roller, an a s eet actuated wedging plate orblade adapted to be projected between saidrollersand thereby disengage the latchingarm from the latching bar. A

13. Ina aper feeding machine, the combination o? a sheet moving instrument, means for operating the sheet moving instrument, a pair of"coperating rollers, one of which is mounted on a `stationary, support, and the other of which is mounted on a mov-v able support, a sheet actuated wedging blade or plate adapted to be inter osed between said rollers`-for separating. t ein, and means actuated by the separation ofsaid rollers for arresting the operation of the sheet moving instrument.

14, In a paper feeding machine, the com-j bination or a sheet moving instrument,

means for operating the sheet moving instrument, a pair of cooperating rollers, one of which is mounted on a stationary support, and the other vof which is mounted on a movable support, means for driving the roller on the stationary support, a sheet-actuated wedging blade or plate adapted to be interposed between said rollers for separating them, and means actuated by the separation of said rollers for arresting the operation of the sheet moving instrument. l

15. In a paper feeding machine, the combination of a sheet moving instrument, a rotary shaft for operating the sheet moving instrument, a pair of peripherally engaging rollers, one of which is mounted on a stationary support, and the other of which is `mounted on a movable sup ort, gearing between said shaft and the ro -er upon the stationary su iport, a .sheet actuated Wedging blade or plate adapted to be `inter osed between. said rollers for separating tliem, and means actuated by the separation of said rollers for arresting the operation of the sheet moving instrument.

16. The combination, in a paper feeding machine, of a sheetmoving instrument, means for operating said instrument, a sheet actuated tripping device including a iinger projecting into the path of sheets, means controlled by said tripping device for arrest-.v1

ing the operation of said instrument, rollers'` v engaging the sheet above and below the`plan`e i ot' feed and upon op osite sides of and adjacent to the tripping nger, and means for periodically raising -and lowering the rollers whch engage the sheetabove the plane of fee 17. The combination, -in a paper feeding machine, of ay sheet moving instrument, iiiea'ns for operating said instrument, a sheet actuated tripping device Aincluding a linger priijocting into the ,path of shoots, means controlled by said tripping device .for arresting `the voperation o l' said instrument, rollers engaging the sheet .above and below the plane o ll -l'oed and upon opposite sides and-ad.- jacent to the tripping finger, and means actuated by the instrument arrestingV means 1 `for raising saidrollers which engage the sheet above the plane o'l'l'ced. l

18. "lhe combination, `in a .paper yfeeding machine, ol' a supporting' arm or Alranio movl 4able toward and away ironi a pile ol' sheets, vand sheet moving means mounted upon said supportingfarm or `frame, means rl'or moving said arm or frame in vone direction, means `l'oriiioving said arm. or :frame in theo'l'iposite direction, and a latcliing mechanism including a movable latch controlling member l'orretaining said arm or frame in one position, with a sheet controlled wedge constructed and arranged to nicveiiito ei'igagement with said movable 'latch controlling iiieiii'bcrand thereby trip said latching mechamsni.

1,9. .ln apalper -feeding machine, the oom- 'binationol'ia s ieot moving device, and means ylor yoperating 'the sheet moving device, ol' a rock arm adapted to engage and elevate the ysheet moving device, a spring mechanism 'tending to ymove said rock .arm in one direction, mechanism adapted to periodically move the rock arm in the opposite direction, a llatcl'iing bar connected with` ythe rock arm, a la'ftcliing-arni engaging the latchingbar and retaining the rock arm Ain one position with vthe spring mechanism under tension, a movvrlable tripping member roperatively connected /iiistri'iment Iis operating, and to be thrown -lout ol' operation when said kinstrument is .raised out l"'operati -in, and a sheet actuated :tripping device vcontrolling said mechanism.

lbination offa s esenti? 2l. ln a paper `feeding machine, the corn-I bination of a -sheet "moving instrument,

means for operating said instrument, means for raising and lowering said instrument'with .relation to the sheet supporta drophroller. mechanism includiiig a constantly v`driven under feed roller and a eoiiperating upperi'ee'r'l roller, a rock arm. upon fwhiclisaid upperifeed roller is mounted, and means 1connecting said rock arm lwith the instrument elevating means, said connecting means including va link' connection 'between ytwo of its parts..

22. ,In a paper feeding machine, the fcoinbiiiation cfa sheet .moving instruinent,faroek arm arranged `to raise and :lower said-sheet moving instrument, `means for operating-said rock arm, a `constantly running tunder "lfeed roller, a drop roller `cooperating therewith, ,a

rock arm upon which` said vdrop roller Eis "jouri naled, and means connecting the .drop roller rock arm with the instrument raising and lowering rock arm, said connecting means including' a rock shaft and links-'having pivotal connections withsa-id rock arms.

23. vin va pa )er feeding machine, the fcomlieet moving instrument, fand la' driving shaft operating said instrument, 'with a constantly rotating shaft geared to `and driven by said instrument opera-tin -sl'iaft, :a

roller mounted upon said constant :driven shalt, a cooperating roller mounted .u on ya rock arm in operative relation to'sai con'- stantly driven roller, meansfor arrestingthe operation of 'said sheet moving instrument, 1,5

latching means normally restraining sai resting means and vincluding a latchi-ng suitably connected with the Yroller "supported" rock arm, and a sheet actuated wedgiiig blade or plate `adapted to beinterposedjbei tween said cooperating rollers for .actuating said latchiiig means. i t i 24. ln a paper feeding machine, 'the combination of a sheet moving instri'imentgmeans for operating said instrument, means for farresting the operation of said instrument, fa pivotally mounted sheet aetuated-itrippmg 'l iiiger lcon trolling said arresting means, a 'con'- trolling rock arm` lhaving laterally :projecting 'lingers extending upon opposite sides of :f providinglost motion connection with the tripping linger, and a cani actuated niedhanism suitably connected -Withisaid rock anni, 't

TALBOT DEXTER W'itnesses: i

A. (l. HAMMOND, li). O. LiNnQU-is'i..

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