US902867A - Machine for making cardboard blanks. - Google Patents

Description

J. E. FELLOWS & E. W. BONIIELD. MACHINE FOR MAKING GARDBOARD BLANKB.

AP PLXOATIOH FILED JAR. 15, 190B.

Patented NOV. 3, 1908.

4 SHEETS-SHEET 1.

J. E. FELLOWS & B. W. BONFIELD.

MACHINE FOR MAKING CARDBOARD BLANKB.

APQPLIOATIDH FILED JAR. 15, 1908. 902,867. Patented Nov. 3, 1908.

m Q m 4 w g Q & m E a Q &1

J. E. FELLOWS SE B. W. BONPIELD.

MACHINE FOR MAKING omnnoum BLANKS.

APPLIOATIOH FILED JAE. 15, 1906. Patented Nov. 3 4 SHEETS-SHEET 8.

In Rx a a 5.? Elia? no 072%??? Jii'meaije flaws Jimmozzskfwywki J. E. FELLOWS 6; E. W. BONFIELD.

MACHINE FOR MAKING CARDBOARD BLANKS.

. APPLIOATIOH FILED 1.43.15, 190s.

Patented NOV. 3, 1908.

4 SHEETS-SHEET 4.

6 5 I720 a n2? vElzzaiflfelckwa UNITED STATES PATENT OFFICE.

JAMES E. FELLOWS AND EMMONS W. BONFIEL'D, OF CHICAGO, ILLINOIS.

KAOHINE FOR MAKING CARDBOARD BLAII'KS.

Specification of Letters Patent.

Patented Nov. 3, 1908.

Application filed January 1:, 1900. Serial No. 290,051.

To all whomit may concern:

Be it known that we, J AMES E. Fannows and EMMONS W. Bo'nrrnnn, both citizens of the United States, residing in the city of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Machines for Making Oardboard Blanks, of which thefollowing is a specification.

This invention relates to improvements in machines for making cardboard blanks, and refers more particularly to a machine adapted to assemble and secure together a plurality of plies of cardboard drawn from supply rolls and thereafter cut the same into blanks suitable for various purposes, as for example for box making,'etc.

Among the salient objects of the invention are to provide a machine by means of which means for conveniently and accuratel 7 adjustable; and in the process of superposing and pasting together a plurality of webs and thereafter cutting the same into blanks may be performe as a continuous process; to (provide a machine having mechanism adapte to cut the material into blanks of a required size with the reatest accuracy, notwithstanding the material is fed continuously; to rovide in such machine a set of cutting-o knives which act with a true shearing action thereby securing not only clean cutting but reducing the cost of maintaining the cutting apparatus in good operative condition to a minim-urn; to provide in such a mechanistrin a justing the parts to make blanks of di erent sizes; to rovide a feeding and cutting mechanism w \ich is entirely automatic and requires no manual cooperation; to provide improvementsin the construction and arrangement of the various-parts WhlClJ. are

neral to provide improvements in the etails and construction of a machine of the character referredto.

To the above ends the invention consists in the matters hereinafter-described, and more (particularly pointed .out in the appende claims. t

In the drawin Figures 1 and 2 together reprwent the chief portions'of the machine parts of the frame omitted, and cerwhich carries the upper shear blade and the o erative connections thereof, and showing use a fragmentary ortion of the cooperating clamping bar. ig. 5 is a fragmentary detail showin the construction and arrangement of the s ittin cutters. Fig. 6 is a sectional view taken ongitudinally and vertically thro h the delivery end of the machine, and owing particularly the arrangement of the driving chain which actuates the tripping rolls; the frame supports being omitted in this view. Fig. 7 is a detail on a larger scale of the tripping mechanism which brings the cuttin -ofi shear into operation. Fig. 8 is another etail of a 006 rative part of said tripping mechanism. ig. 9 is another view of the part seen in F 7, this view being taken at right angles to t. e latter. Fig. 1-0 is a-detail of arts which cooperate with the parts shown in Fi 8; these parts being shown in approximate y their true relation to the arts shown in Fig. 8. Figs. 11 and 12 are urther details of the parts seen in Fi 10.

Re erring to the drawin ,1, 2, 3, 4 and 5 designate a plurality o upright frame standards arranged in transversely opposite pairs and carrying at theirupper end a suitable bed frame designated as a whole 6, of that part of the machine which brings the webs of cardboard together and converts the same into blanks.

7 and 8 designate other pairs of transversely opposite fi'ame standards which serve to support the supply rolls 9, the pastetrou s 10, 11 and 12, gnd the mechanism whic l cooperates therewith.

Describmg said mechanism more particularly, each supply roll 9 is mounted upon g sulifitabli shailft oril roller 13 .rac ts 4;t ero ers'ca in es rolls being adjustable end ii i se i0 brin g t hi; rolls .into per relation with each other means of and wheels 15 which actuate a iusting screws 16, which in turn shift the ournal supports of "the rolls laterally.

The paste-troughs 11 and 12 are mounted on suitable brackets 17 and are supplied from anelevated tank 18 through a sup lypnovided with branches 20, 2%, 2%; n t

r s 19 leading to the respective. troughs. upper edge ofeach trough is journaled a fountain roll. as 21,- 22, 23, the lower side of which dips in the supply of glue or paste and the upper SIdGOf which serves as a support over which the web of cardboard is suported 1n drawn. These fountain rolls are desirably l tical ways 53 upon which is arranged to intergeared by means of sprocket wheels and sprocket chains, 24 and 25, so as to rotate together. Inasmuch as it is only necessary to apply paste or adhesive to one of each of the meeting surfaces of the several webs, no paste'applying mechanism is provided for the lowermost roll, the latter being sim ly trained around a guide roller 26 mounte on the standard 7.

The several webs, of which there are four shown in the resent instance, although the number may e varied at will, are brought together and passed through a pair of gathering rolls 27, 28, adjustably mounted upon the bed of the machine; these gathering rolls serving to press the several webs firmly toether so as to bring about proper adhesion.

rom the gathering rolls the multi-ply web passes next through a second set of pressing rolls 29, 30, and from thence between one or more pairs of slitting- rolls 31, 32, suitably mounted onshafts 33 and 34, respectively, which are in turn journaled on brackets 35 upon the bed frame.

As shown clearly in Fig. 5, each slittingroll has a cylindric presser body 36, and at one end thereof a. peripheral radially extending shearing flange 37; the shearing flanges of the pair being oppositely beveled and arranged to overlap at their meeting edges shear-fashion, and the lower roll 32 being provided with a circumferential groove 38 to receive the shear flange of the opposing roll. The rolls are adjustable longitudinally upon their respective shafts, thus enabling the web to be slitted into any desired number of stri s of desired width.

In advance 0 the slitting-rollsisarranged a pair of feed- rolls 39 and 40, which are arranged to grip the web with considerable presure so as to draw the same from the supply rolls and through the gathering rolls. These feed-rolls are geared together, as indicated at 41 and 42, Fig. 3, and positively driven from the main sprocket wheel 43 (Fig. 1); the shaft of the lower or fixed feed-roll 40 being provided with a sprocket 44 connected by a sprocket-belt 45 with a similar sprocket 46 mounted rigidly and concentrically with the sprocket 43. The latter is driven from any suitable countershaft by means of'a belt 47. The slittingrollers or cutters are likewise positively driven by the same belt 45 which actnates the feed-rolls; the lower feed-roll being to this end provided with a sprocket 48 which engages the upper lap of the belt 45, and the two shafts which carry the slitting-rolls being geared together by means of gears 49 and 50.

From the feed-rolls the web passes over a table 51 to the cutting-off mechanism, which is constructed as follows: At each side of th bed rises a standard 52 provided with verslide a shear-bar 54. With each end of this shear-bar is connected an eccentric rod 55 which extends downwardly to, and is operatively connected with. an eccentric 56 mounted upon a cross-shaft 57 which is journaled upon the frame standard 2. The shear-bar carries a shear-bladc 53. the lower cutting edge of which is adapted to coop erate with a fixed shear-blade 59 mounted upon a crossbar 60 of the frame bed and having its upper edge approximately flush with the surface of the table 51.

The eeentric shaft 57 is actuated intermittently as follows: llpon one end of the shaft is loosely mounted a belt-pulley (ll continuously driven by a belt 62. ithin the hub of this pulley is formed an internal ratchet (33 (see Figs. 11 and 12). and adjacent to the hub is keyed upon the shaft a clutch member 64: which has mounted in a recess (55 in its face towards the pulley hub a dogging-pawl (36: the latter being pivoted at its lower end. as indicated at 67. so that it may oscillate. 'lhis pawl has an olfset portion 9 which extends within the internal ratchet 63; the outer end of said offset acting as the pawl to engage the ratchet. pawl is extended outward beyond the periphery of the clutch-wheel and normally engages the end of a detent 70, which is pivoted as indicated at 71 upon a. fixed part of the frame structure, and is adapted to be lifted by a shipping-rod 72 carrying a stud 73 which engages the detent. When the pawl is thus engaged by the detent and forced back against the rear wall of the recess within which it is pivoted, it is held out of engagement with the teeth of the ratchet 63 and at the same time forms a positive stop which arreststhe forward rotation of the clutch member and therefore of the shaft upon which the clutch member is mounted. The shipping-rod 72 is autmnatically lifted to raise the detent 70, whereupon the pawl 66 is thrown into en agement with the ratchet by means of a coiied expansion spring 74! arranged to act thereon. Inasmuch as the pulley 1 is constantly rotating the eccentric shaft is thus broughtinto operation to draw down the shear blade. In order to arrest the eccentric shaft auton'iatically at the end of each rotation, a stud or projection 75 is provided upon the clutch member in position to engage a shoulder 70 upon the shippingrod; the arrangement. of the parts being such that in the forward rotation of the clutch member the shipping-rod is depressed and restored to its normal position, after which the stud passes out of engagement with the shoulder; a latch mechanism, now to be described, serving to retain the shipping-rod in its normal position. The shipping-rod having been depressed, the detent 70 engages the pawl 66 as it comes around andforces The main body of thelower roll is relatively immovable.

it backwardly out of engagement with the ratchet, thus automatically arresting the shaft. In this connection it will be noted that the lower end of the shipping-rod is provided with a right angled extension 72' which engages the hub 64 of the clutch memand limits the rising movement of the In order to insure a clean and accurate cutof the material by the shear blades, means are provided for clamping the web of material ad'acent to the line of severance and holding 1t immovable while the shears are cutting: For this. purpose a clamping bar 119 is mounted to reciprocate in suitable ways upon the frame standards 52 just above the bed-plate and is adapted to cooperate with the upper side of the fixed bar 60 herc inbefore described. With each end of the clamping bar 119 is connected a strap-link 120 (see Fig. 4) which extend downwardly alongside of the respective edges of the frame and connect with the ends of the actuating bar 121 which extends transversely underneath the bed frame and projects through suitable openings 122 inthe frame standards 2. Withthe central portion of the bar 121 is connected a cam rod or link 123, the lower end of which is connected with a cam lever 124 (see Fig. 3). One end of said lever is pivotally connected with a suitable support 125 while its opposite end carries a cam roller 126 which engages the periphery of a rotary cam 127 mounted upon the eccentric shaft 57. The cam surface is so shaped and timed that the clamp will descend and rip the web just in advance of the shear b ade and hold it clamped during the full stroke of the blade and until the latter has returned out of the path of the web. The return or rising movement of the clamping bar is effected by means of a pair of coiled contractile springs 128 (see Fig. 4) connected with the actuating bar 121 and with the lower part of the cross bar 60, as seen clearly in the drawing.

Describing now the mechanism which sets into motion the shear actuating mechanism to sever blanks of predetermined lengths, and referring more particularly to Figs. 1 and 3, between the pair of upright supports or standards 77 is mounted a air of rolls, designated 7 8 and 7 9, respective y; the upper roll being mounted to rise and fall in wavs 80 provided in said standards, while the The standards 77 are mounted on a transversely extending bed-plate 81 which is adjustable bodily along the bed of the machine; a graduated scale 82 being formed along one side of the bed frame and an indicator 83 upon said bed plate arranged to cooperate an angle lever 85, one arm of which overlies the upper side of the shaft or trunnion of the movable upper roll 78 while the other arm extends downwardl to, and is adjustably connected with, a trip-rod 86. The end of arm 85 is weighted, as indicated at 87, so as to rise and fall with the roll 78. The trip-rod extends rearwardly to a point adjacent to the shipping-rod 72 and is there pivotally connected with the lower end of a trip 88 which is in turn pivoted to the side of the bed-frame, as indicated at 89. The opposite end of the trip terminates in a sharp angle 90 which coiiperates with a similar part 91 formed upon a detent 92 which is also pivoted to the side of. the bedfra'nie, as indicated at 93. The opposite end. of the detent 92 terminates in a catch 94 which normally engages a notch 95 in the shipping-rod and holds the latter depressed against the tension of a coiled expansion spring 96 interposed between the collar 97 on the shipping-rod and a bracket 98 upon the bed-frame,through which the shippingrod works. A spring 99 is arranged to over lie the arm of the detent 92 in such manner as to normally press the latter into engagement with the notch 95. The arrangement of said parts is such that whenever the tripping-rod is shifted rearwardly by the rising of the movable roll 78, the trip 88 first forces the detent 92 out of engagement with the shipping-rod, permitting the latter to rise. and thereafter slips {past the end of the detent so that the latter may ,be thrown back into engagement with the notch of the shippingrod as soon as the latter is again depressed and before the trip ing-rod returns to its normal forward position. In order to permit the return movement of the trip past the detent, the point thereof which engages the detent takes the form of a plate-spring 100 which normally stands a slight distance away from the end of the trip and yields inwardly during the return movement.

The actuation of the tripping mechanism is effected by the edge of the web of pasteboard entering between the rolls 78 and 79 and thus lifting the upper one. ticular embodiment shown the rolls referred to are elevated above the bed of the machine for convenience of adjusting them along the latter. and accordingly an inclined guideboard 101 is provided which is mounted in rear of the rolls and serves to deflect the web of material upwardly between the rolls; it being "understood that this guide-board is mounted upon, and moves with, the bedplate 81.

The two rolls 78 and 79 are geared together and driven at a considerably higher rate of speed than the peripheral speed of the feed-rolls 39'; the object being to have said rolls 78 and 79 act as snatch-rolls which will rapidly run the severed blank through In the parand deliver it, and permit the upper roll to descend to be again tripped by the end of the succeeding portion of the pasteboard. In order to thus actuate these rolls in such manner that. the driving connections remain undisturbed by adjustment of the rolls longitudinally relatively to the shear, shafts 102 and 103 are mounted to extend transversely of the bed-frame, one near the shear mechani m and the other near the delivery end of the machine, and upon the former of these are mounted side by side two sprocket gears NH and 10:"), one of which is actuated by a sprocket belt 106 while the other serves to actuate a 'second sprocket belt 107 which extends longitudinally beneath the top of the betbframe and engages another sprocket 10S mounted upon the shaft 103 hereinbefore described. The belt 106 is driven from an intermediate table sprocket 109 mounted on the frame standard 2 and in turn driven by a belt 11 which engages a sprocket carried on the sha ft of the lower feed roll 40.

Referring to Fig. 7, 111 and 112 designate the gears mounted upon the rolls 7S and T9. respectively. 113 designates a second gear mounted concentric with the gear 11:! and meshing with an intermediate gear ill which in turn is driven by a gear 115 r'ounted upon a shaft 116 (see Fig. 9) extending transversely,beneath the bed-frame and between the laps of the sprocket belt l lii. The opposite end of the shaft 111? carries a sprocket 117 which intcrmeshes with, and is driven by, said belt 107. la order to support the material between the shear mechanism and trip rolls, rollers are mounted upon the shafts 102 and 10;} and around these rollers is trained a carrier belt The operation of the apparatus has been ubstantially set forth in connection with the description of the construction thereof. l rielly summarized, the rolls of material 9 mounted upon the supporting spindle are adjusted cndwise so as to pay out or unroll in register with each other, and the webs are drawn thence over the fountain rolls and thence to the gathering rolls 2? and :h at which point they are brought together and united. From the gathering rolls they pass to the pressing rolls. then through the slitting rolls and feed rolls; the latter serving to draw the multi-ply web forwardly and feed it through the shears. The web passing through the shears encounters the tripping rolls which throw the shears into operation and sever a blank. The first niovement of the cutting-off mechanism is to clamp the web just in rear of the shear blades and arrest its further movementduring the time the shears are effecting the cut. Meantin'ic the advancing web buckles up lightly between the clamps and the feed calls, the absence of parts overlying the web between the feed rolls and clamps permitting such movement. The gripping of the web by the clamps and the constant rotation of the tripping rolls, which it will be remembered are positively driven, insures that the blank shall be drawn taut at the instant the shear blade drops and severs the blank, and as soon as the blank is severed the tripping rolls operate to run it rapidly through and deliver it, considerably before the advancing edge of the web again encounters the tripping rolls. Accordingly, as the rear end of the first blank severed passes from between the tripping rolis the trip lever, its connected tripping rod and the tri 59 return to their normal positions in rea iness for a succeeding operation; it being noted that the single revolution of the eccentric shaft which operates the shear blade, has not only drawn down and returned the shear blade but has also drawn down the shipping rod T2 during the latter part of its revolution and rcengaged it with the detent 92. It follows, therefore, that the operation of the mechanism is completely automatic and that the blanks will be severed in succession, each of an exact length equal to the distance between the shear blades and the tripping rolls. If the length of the blanks is to be changed, it is only necessary to loosen the thun'ib-screws which hold the bed plate 81 tixed upon the bed frame and to similarly loosen the set screw which unites the vertical arm of the trip lever 85 to the tripping rod Mi, whereupon the tripping rolls and parts moving therewith may be shifted bodily towards or from the shears and lixed in rc-adjusted position. The graduated scale on the bed frame and pointer on the bed plate enable the mechanism to be adjusted to any desired length. The operation of adjusting the slitting rolls to the desired width by shifting them bodily upon their shafts has been .lescribcd, and need not be repeated.

it will be obvious from the foregoing description that the mechanism described accomplishes, in an efficient and reliable manner, all of the several objects hereinhefore set forth. It will be further obvious that the invention is in no wise limited to the precise details of construction shown.

\Ve claim as our invention:

1. In a machine of the character described, the. combination of means for supporting a plurality of rolls of paper stock, means for drawing off the web from each roll, means for applying adhesive to 0110 surface of each web, means for pressing the webs together after adhesive is applied, and an automatic shear mechanism through which the built-up web is arranged to travel, and an actuating mechanism controlling said shear mechanism and adapted to be actuated by the encounter therewith of that end of the web which has advanced beyond the shear mechanism.

2. In a machine of the character described, the combination of means for supporting a plurality of rolls of pa er stock, means for drawing off the web rom each roll, means for a plying adhesive to one surface of each we means for pressin the webs together after adhesive is applie an automatic shear mechanism through which 'the built-up web is arranged to travel, and

an actuating mechanism controlling said shear mechanism and adapted to be actuated by the encounter therewith of that end of the web which has advanced beyond the shear mechanism and a slitting mechanism operating to divide the built-up web as it progresses through the feeding mechanism.

3. In a machine of the character described, the combination of means for revolubly supporting a (plurality of rolls of pa er stock 1n super se relation, means for a justing the rolls odily in the direction of their axes, means for drawing off the web of stock from each roll, a fountain roll, adhesive applying mechanism arranged to ap 1y adhesive to one surface of each of the we s, exce t one, a pair of resser rolls to which each 0 the several w s is guided and between which all are pressed together, an automatic shear mechanism through which the built-up web is arranged to travel, and an actuating mechanism controlling said shear mechanism, arranged beyond the latter and ada ted to be actuated by the encounter therewit of the advanci end of the web.

4. In a mac 'ne of the character described, the combination with a suitable bed frame and means for feeding a web of stock over said bed, of a shear mechanism comprising a pair of transversely disposed cooperative shear blades, between which the web is fed, means for intermittently actuatin one of said blades, and means for controlling the shear actuating mechanism comprising a pair of rolls located beyond the shear blades and between which the stock is fed, one of said rolls being bodily movable away from its companion, a trip member 0 eratively connected with said movable r0 1, and a clutch mechanism operatively connected with said trip member and the shear actuating mechanism.

5. In a machine of the character described, the combination with a suitable bed frame and means for feeding a web of stock over said bed, of a cuttin -ofl' shear mechanism comprising a pair 0 transversely disposed cooperative shear blades between the cut-- ting edges of which the web is fed, means for intermittently actuating one of said blades com rising an eccentric shaft, eccentric connections between said' shaft and shear blade, a constantl rotating member journaled concentric wi said shaft, a clutch adapted to throw the eccentric mechanism into gear with the constantly rotating member, and means for automatically bringing said clutch mechanism into operation comprisin a pair of guides between. which the web 0 stock passes after passing between the shear blades, one of said guides being bodily movnblc toward and from its companion by the passing of the web therebctween, a trip member operatively connected with said movable guide, operative connections between said trip member and said clutch mechanism, and means for feeding the severed blanks through said guides at a faster rate of travel than that of the unsevered web.

6. In a machine of the character described, the combination with a suitable bed frame and means for feeding a web of stock over said bed, of a cutting-off shear mechanism comprising a pair of transversely disposed coiiperative shear blades between the cutting edges ofwhich the web is fed, means for intermittently actuating one of said blades comprising an eccentric shaft, eccentric connectlons between said shaft and shear blade, a constantly rotating member journaled concentric with said shaft, a clutch adapted to throw the eccentric mechanism into gear with the constantly rotating member, and means for automatically bringing said clutch mechanism into operation comprising a pair of guides between which the web of stock passes after passing between the shear blades, one of said guides being bodily movable toward and from its companion by the passing of the web therebetween, a tri member operatively connected with sai movable uide, operative connections between sai trip member and said clutch mechanism, means for feeding the severed blank through said guides at a faster rate of travel than that of the unsevered web, and mechanism for automatically throwing the clutch mechanism out of car at the end of each stroke of the shear lade.

7. In a machine of the character described, the combination with a suitable bed frame and means for feeding a web of stock over said bed, of a cutting-off shear mechanism comprising a pair of cooperative shear blades between the cutting edges of which the web is fed, means for intermittently actuating one of said blades comprising a connecting rod and a rotatable member with which said connecting rod is connected, a constantly rotatin drive member, a clutch adapted to throw t me drive member and connecting rod actuating member into gear, means for auton'iatically bringing said clutch mechanism into operation comprisin a pair of guides between which the web 0 stock passes after )assing between the shear blades, one of sai guides being retractible from 1ts companion by the passage therethrough of the web of material, a trip member operatively connected with said movable guide, and o erative connections between said trip mem r and said clutch.

8. In a machine of the character described, the combination with a suitable bed frame and means for feeding a web of stock over said 'bed, of a cutting-0E shear mechanism comprising a pair of 005 erative shear blades etween the cutting e ges of which the web is fed, means for intermittently actuating one of said blades comprising a connect' rod, a rotatable member with which sai connecting rod is connected, a constantly rotating driving member, a clutch adapted to connect the riving member with said rotatable member, and means for automatically setting the clutch mechanism into operation comprising a pair of rolls between which the web of stock passes after passing between the shear blades, one of said rolls bein retractible bodily from its companion and eld yieldingly towards the latter,a trip member operatively connected with said movable roll, operative connections between said trip member and the clutch mechanism, and means for actuating said rolls at a peripheral speed greater than the rate of movement of the web during its passa e through the shears, whereb the severed lanks are snatched from t e shearsand passed through the rolls before the advance end of the succeeding section arrives at the rolls.

9. An automatic blank cutting mechanism comprising a bed frame, means for feedin a web of stock over said bed, a cutting-oil shear mechanism comprising a pair 0 cooperative shear blades between the cutting edges of which the web is fed normally nonoperating means for intermittently actuating one of said blades, and means for setting said mechanism into operation comprising a pair of rolls through which the web passes after assin of said rol 5 being bodily -movable away from its companion, a trip member 0 ratively connected with said movable rol 0perative connections between said trip member and the shear actuating mechanism, and means for rotating said rolls at a speed greater than that at which the web normally travels between the shears, for the purpose set forth.

10. An automatic cutt' -ofi mechanism comprising a suitable bed me a pair of cooperative shear blades arr ed to extend transversely across the bed an between the edges of which the web of stock is fed means for feeding the stock between said shear blades, an eccentric shaft, an eccentric upon said shaft, an eccentric rod. operativel .connected with the movable member 0 said shear blades, a constantly rotating drive member, a clutch mechanism for operatively connecting the eccentric shaft with said drive member, a shipping rod provided with between the shear blades, one

pin

some" a detent and arranged to normally hold the dogging member of the clutch out of engagement with the cooperating member thereof, a spring tending to normally throw said dogging member into operative engagement, 9. spring tending to normally shift said ship in rod to release the detent, a latch mec anlsm normally holding the shiprod from movement under the action of its spring, a pair of rolls arranged at a distance from the shear mechanism and between which the material passes after passing through the shears, one of said rolls be ing bodily movable, a trip member operativly connected with said movable roll, and a shipping rod connecting said trip member and the latch mechanism.

11. An automatic cuttin -05 mechanism comprising a suitable bed ame, a pair of cooperative shear blades arran ed to extend transversely across the bed an between the edges of which the web of stock is fed, means for feeding the stock between said shear blades, an eccentric shaft, an eccentric upon said shaft, an eccentric rod operatively connected with the movable member of said shear blades, a constantly rotating drive member, a clutch mechanism for operatively connecting the eccentric shaft with said drive member, a shipping rod provided with a detent and arranged to normally hold the dogging member of the clutch out of engagement with the cooperating member thereof, a spring tending to normally throw said dogging member into operative engagement, a'spring tending to normally shift said ship ing rod to release the detent, a latch meclianlsni normally holding the shi ping rod from movement under the acti n of its spring, a pair of rolls arranged at a distance from the shear mechanism and between which the material passes after passing through the shears, one of said rolls being bodily movable, a tri member operatively connected with sai movable roll, a

shi ping rod connecting said trip member and the latch mechanism, and means for antomatically throwing said clutch out of gear with the eccentric rod at the end of a single tation.

12. An automatic cutting-oil mechanism comprising a bed frame, means for feeding a web of stock over said bed, a air of coshear blades, one of said guides being mov- 130 oszgztive shear blades between t e cutting able to and from the other, a trip member operatively connected with said movable guide, and operative connections between said trip member and the shear actuating mechanism.

13. In an automatic cutting-oif mechanism. the combination with a suitable frame and means for feeding a web of stock over the same, a pair of shear blades, between the cutting edges of which said stock is fed, one of said shear blades being bodily movable, means for actuating said movable blade comprising a rotatable normally inactive member, operative connections between said rotatable member and the shear blade, a constantly rotating member, a clutch or ungearing mechanism adapted to connect said constantly running and normally inactive members. a spring tending constantly to throw said clutch into gear, a spring-pressed shipping rod, a detent controlled by said shipping rod and normally holding said clutch out of gear, a detent normally holding the ship .ing rod for movement under the action 0 its spring, and automatic tri ping mechanism actuated by the advance c ge of the web of stock passing through the shears and operating to release said last mentioned detent.

14. In an automatic cutting-off mechanism. the combination with a suitable frame and means for feeding a web of stock over the same, a pair of shear blades, between the cutting edges of which said stock is fed, one of said shear blades being bodily movable, means for actuating said movable blade comprising a rotatable normally inactive member, operative connections between said rotatable member and the shear blade, a constantly rotating member, a clutch or ungearing mechanism ada ted to connect said constantly running an normally inactive members, a spring tending constantly to throw said clutch into gear, a spring-pressed shipping rod, a detent controlled by said shipping rod and normally holding said clutch out of gear, a detent normally holding the shipping rod. from movement under the action of its sprin automatic tri ping mechanism actuated y the advance e e of the web of stock passing through the s ears and operating to release said last mentioned detent, and means for automatically tlirowing said clutch out of gear-comprising a projection' mounted upon the rotary part of said clutch and a tappet shoulder connected and moving with the shipping-rod and brought into the path of said projection by the movement of the shipping rod into position to throw the clutch into gear.

15. In an automatic cutting-off mechanism, the combination with a suitable frame and means for feeding a web of stock over the same, a pair of shear blades, between the cutting edges of which said stock is fed, one

of said shear blades being bodily movable, means for actuating said movable blade comprising a rotatable normally inactive member. operative connections between said rotatable member and the shear blade, a constantly rotating member. a clutch or ungearing mechanism adapted to connect said constantly running and normally inactive members, a spring tending constantly to throw said clutch into gear, a spring-pressed shipping rod, a detent controlled by said shipping rod and normally holding said clutch out of gear, a detent normally holding the shipping rod from movement under the action of its spring, automatic tripping means controlling said springpressed shipping rod comprising a pair of rolls through which the stock is arranged to pass after passing through the shears, one of said rolls being bodily movable, a lever operatively connected with said movable roll and operative connections between said lever and the detent which normally holds the shipping rod from movement, and means operating said rolls at a peripheral speed greater than the normal rate of travel of the stock through the shears, whereby the blank after being severed is snatched from the shears and fed completel through the rolls before the succeeding blan encounters the latter.

16. In a machine of the character described, the combination of a suitable bed frame, means for feeding a web of stock over the same, a cutting mechanism through which the stock passes and whereby it is operated upon, means for automatically actuating said cutting mechanism at predetermined intervals comprising a pair of rolls through which the stock asses after leaving the cutting mechanism, rame supports carrying said rolls and adjustably mounted upon said bed frame, driving connections for said rolls comprising a sprocket belt mounted upon sprockets arranged respec tively in front of and in rear of said rolls, and a third sprocket geared to and bodily movable with the pair of rolls and engaging one of the laps of said s rocket belt.

17 In a machine 0 the character described, the combination of a suitable bed frame, means for feeding a web of stock over the same, a cutting mechanism through which the stock passes and whereby it is operated upon, means for automatically actuating said cutting mechanism at predetermined intervals comprising a pair of uides through which the stock passes after caving the cutting mechanism, frame su ports carrying said guides and adjustab y mounted upon said bed frame, a raduated scale extendin longitudinally albng said bed frame, an an indicator carried by said adjustable frame supports and'cooperating with said scale 19. A mechanism for automatically throwl and an automatic trip mechanism operating lug a normally inactive member into and out 1 of gear comprising a rotatable normally in- 1 active member, a constantly rotating mem- 1 her, a clutch mechanism for connec ing said 1 normally inactive and constantly running members, a reciprocator shipping member controlling said clutch mechanism, means tending constantly to move said shipping member in a direction to throw the clutch into gear, a latch mechanism normally holding said shipping lever against. movement comprising an angular detent pivoted at its angle and one arm of which engages a notch or shoulder on the shipping member. a trip pivoted adjacent to the opposite arm of said detent, a spring mounted upon the end of said trip and constituting the engaging part which holds the detent 1n latched position,

to oscillate the trip to release the detent.

19. In an automatic blank cutting mechanism, a bed frame, means for feeding a Web of stock over said frame, an automatic shear mechanism through which the web of stock is arranged to travel, a tripping mechanism arranged beyond said shear mechanism, o rativcly connected with the latter, and a( apted to be tripped by the encounter therewith of the advancing end of the web of stock, and means operating to hold the part of the web about to be severed under tension during the operation of severing.

JAMES E. FELLOWS. EMMONS \V. BONFIELD. \Yitnesses:

Emnan Rose, FRANK G. BELKNAP.

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