US1377810A

US1377810A - de escobales

Info

Publication number: US1377810A
Authority: US
Publication date: 1921-05-10
Anticipated expiration: 1938-05-10

Description

- H. DE ESCOBALES.

BLANK FEEDING MECHANISM.

APPLICATION FILED sgPT. 13.71917.

Patentd May 10,1921.

2 SHEETS-SHEET l.

H. DE ESCOBALES. BLANK FEEDING MECHANISM.

Patented May 10,1921

2 SHEETS-*SHEET 2.

T. H on P E .S D. E L H 0 H C H DI DI A {UNITED STATES PATENT OFFICE.

HILARION DE ESCOBALES, OF NEW YORK, N. Y.

BLANK-FEEDING MECHANISM.

Specification of Letters Patent.

Patented May 10, 1921.

-Application filed September 13, 1917. Serial No. 191,259.

To all whom it may concern.

Be it known that I, HILAPION DniEsooBALns, a citizen of the United States, residing at New York,in the county of New York and State of New York, have invented new and useful Improvements in Blank Feeding Mechanisms, of which the following is a specification. I ThlS inventlon relates to nnprovements 1n duction of packages, the stamp or label being provided with an adhesive coating or having a coating of this type moisteneddependent upon the form of the stamp or label-during travel of the fed stamp or -'label to the point wherethe stamp or label is to be applied. V

The present application pertains more particularly to the feeding mechanism, and the general principles of thismechanism are applicable for use where other forms of articles are to be fed. For instance, the mechanism is, with a small addition, adapted to feed blanks of heavier stock and which have more or less irregular orjslitted contours. i

This applicability is disclosed in my companion application filed June 8, 1917, Ser. No. 173,558, wherein both stamps and container blanks are employed in the production of packages, the stamp feeding mechanism being that disclosed in thecompanion application Ser. No. 15 1,4 17, while the blank feeding mechanism is of the type disclosed in the present application, thedifl'erences in the two forms of feeding mechanism employed being due to the difference in the characteristics of the sheets being fed and the desirability of providing the tacky coating of the s mp in connection with t e t p feeding means, an action which is omitted with respect to the container blanks.

Among the objects of the present invention are to more particularly provide a simple and efiicient feeding mechanism for sheets, etc., or blanks and which is made operatlve on the lower sheet or blank of a supply pile; by means of which the sheets or blanks are readily segregated from the pile and advanced with a minimum liability of improper feeding action; by feeding from the bottom of the pile, the supply can be replenished at will without necessitating any stoppage of the feeding mechanism.

Another object is to provide a feed mechanism of this type capable of operation in connection with blanks of more or less irregular or slitted contour-as for instance container blankswherein the advance of the selected blank might cause engagement of blank portions of the superposed blank while the selected blank is being advanced; This particular problem is solved by a double feeding actionin which'the selected blank is first moved laterally of the pile and then advanced, thus carrying the selected blank out of vertical alinement with the supply and shiftingthe irregular portions so as to practically prevent interference between the'blanks.

Other objects are to provide a feed mechanism in which the advancing element has a lengthy contact with the sheet or blank to be advanced with the width of contact increased at predetermined portions insuch length, thereby providing a more efficient advancing action. 7 7

Other objects are to provide simple and efficient mechanisms for these purposes, mechanisms havingrelativel-y few operating parts, with mechanical movements of simple form, and mechanisms which can be manufactured at a comparatively low cost.

To these and other ends, the nature of whichwill be readily understood as the invention is hereinafter disclosed, said invention consists in the improved construction and combination of parts hereinafter more fully described, illustrated in the accompanying drawings, and more particularly pointed out in the appended claims.

the accompanying drawings, in which Fi 4 is a sectional View taken on line IV V' of Fig. 3.

Fig. 5 is a side elevation of another embodiment of the invention.

Fig. 6 is a planrview of parts shown in Fig. 5with parts broken away.

Fig. 7 is a sectional View taken on line VIIVII of Fig. 5.

Fig. 8 is a diagrammaticview showing a blank adapted to'be fed by the mechanism of Figs. 5 to 7.

For the purpose of illustrating the in vention, in Figs. 1 to 4, I have shown mechamsm'for 'feedmg labels or stamps, as for lnstance, revenue stamps, eta, these being generally of elongated comparatively narrow form and more or less cliificult to feed, owing not only to the lengthy and configuration of the stampor label but also to the fact that stamps or labels are generally of comparatively light weight of stock. On the other hand, in Figs. 5 to 7, I have shown the invention as employed in the feeding of blanks of heavier stock and which have a configuration somewhat difficult to handle by reason of. the presence of slits extending inward from the periphery of the blank,

' asforinstance shown in Fig. 8, or of cuti various parts are mounted.

table to recelve the sheets, labels or sta1nps Q blanks in the form of a pile.

away portions, such for instance as disclosed in the companion application, Ser. No.

173,558, above referred to, or my companion application filed May 16, 1917, Ser. No. 169,044, either structure of blankpresenting possibilities ofinterengagament of parts of one blank with another when the blanks are advanced from the bottom of a pile.

' Referring first to Figs. 1 to 4 inclusive, 16 indicates a frame member in which the designated generally as blanks-the table carry ng suitable gu1des18 for retaining the Suitable means may be provided for limiting the :blank delivery; In the drawings this is '55 form of segregating structure.

iother well-known structures may be emindicated by aslot 18 at the bottom of the advance guides 18 this being a well-known Obviously,

ployed for the purpose.

.19 designates a slide positioned below the table and secured to the frame member 16.

I'Mountedon slide 19 is a carriage 20 opera- 1 tively connected to a crank wheel 21 by a pitman 22, rotation of wheel 21 reciprocatmg the carriage back and forth on the 17 indicates a described.

slide. Crank wheel 21 is mounted on shaft 23 driven in any suitable manner.

Mounted on carriage 20 is a frame 24 having bearings 25 in which are mounted a pair of studs 26, one of said studs carrying a roll 27 having aperipheral groove 27*, and having one or more ratchet wheels 28. I preferably employ a pair of ratchet wheels 28, one at each side of the roll, the wheels and roll being operatively connected to move in unison in suitable manner, as by pins 28 carried by the wheels and projecting into openings carried by the roll, 29 inclicates a stud carried by frame 24, said stud carrying pawls 30 adapted to cooperate with ratchet Wheels 28. Obviously, one of the pawl and ratchet structures may be omitted, if desired.

The. rear stud 26 carries a roll 31.also having a peripheral groove 31*.

Rolls 27 and 31 extend into a slot 17 of table 17 said rolls havin 'their rooves in v alinement and adapted to receive an endless v band 32, preferably in the form of aclosely woundcoil spring. The grooves of

rolls

27 and 31. are each of a depthto receive the band 82, the latter lying substantially flush with the face of the rolls.

As will beunderstoochthe rolls and band are located beneath the pile of blanks which 'may be within the guides 18, contacting with the under face of. the lowermost blank and tending to form a support for the blanks.

' When crank wheel 21 is rotated, carriage 20 will be reciprocatedon' slide 19, carrying the rolls and band (constituting what may be termed a carrier) with it during the advance to carry the blank forward through slot 18 the remaining blanks being retained within the guides. .During-movementof the car- 7 ria e in the reverse direction friction between the rolls and the blanks will rotate the rolls and band in a counterclockwise Cll-' rection, a direction in which the ratchet wheels are not aflfectedby the pawls,.so that the rolls, and bands will move to starting position without affecting the arrangement of the blanks.

. To produce properiaction I. preferably provide a yielding engagement between the blanks and the rolls and band of the sheet segregating and advancing mechanism thus on the carriage with a' vertical movement of deslred range, pms 33 extending from, frame One way in which this result 'may be obtained is by mounting frame 24 24 through the carriage and having adjusting nuts 34 below the latter, springs 35 being mounted in pockets within the carriage andtending to move frame 24 upward. By properly adjusting nuts 34 the limit of up- 'ward travel of the rolls may be controlled between which the blank is fed by the blankadvancing mechanism, these rolls being operatively driven in any desired manner, these rolls, in application Ser. No. 154,447, being arranged to form the entrance to a conveying mechanism for delivering thefed blank to the packaging apparatus and for producing the tacky surface to the blank while being carried However, for the purposes of the present application, these rolls may be considered simply as feeding rolls for continuing the advance of the selected blank after the advancing mechanism has presented the advance end of the blank to the rolls, the latter operating practically continuously and withdrawing the selected stamp while the carriage of the advancing mechanism is returning to its starting position.

This arrangement of blank-advancing mechanism is of advantage in that the contact between the blank and the mechanism is substantially fixed throughout the length of advance movement. Since the contact zone is of considerable length there is provided an efiicient advancing structure of simple design and operative in connection with comparatively long strip-like sheets or blanks without liability of damaging the strips or shifting the strips laterally, thus avoiding an incorrect feed. In addition, the increase in width at the extreme ends of the contact zoneprovided by the use of rollsaids in producing this result and at the same time eliminatesthe necessity for producing a band structureof considerable width, or the use of intermediate rolls.

The closely wound coil spring band structure is of advantage in that it presents a relatively narrow surface contact with the blank as compared with the wide beltstructure, thus providing the proper feeding action with a minimum surface contact, and

is advantageous over the small round belt structures in that the'bands practically insure a maintenance of the proper tension in theblank feeding portions of the band runs,

a result which such belt structures are unable to provide in service owing to the tendency of the leather stretching or deteriorating, an effect which necessarily results in affecting the feed of the blank.

As will be understood the angular speed of rolls 36 is generally not less than the maximum advance speed of the carriage, the general construction of the advancing instrumentality being such that the speed of the sheet, after it has been gripped by rolls 36, may be materially greater than the travel speed of the carriage without affecting the movement of the latter, the pawl and ratchet mechanism permitting the sheet friction to move band 32 and its supporting rolls in accordance with the excess speed of the sheet over the speed of the carriage. This possibility enables the carriage reciprocation to be had by a simple crank and pitman operation such as shown, the speed changes in the travel of the carriage not affecting feed of the sheet after it is gripped by the rolls. In addition, it permits location'of rolls 36 in proximity to the blank pile, where thelength of feed movement of the blank preliminary to enterin the rolls need be comparatively small. K further important advantage lies in the fact that the advance of the blank may start at slow speed which" gradually increases-the normal action of the crank and pitman arrangement-and be delivered to the rolls at the point of maximum speed of the carriage, after which the carriage may decrease its speed while moving in the direction of sheet movement; if the roll speed is greater than the maximum carriage speed, theefiect on the sheet of the change of speed at this time is simply to continue the sheet speed increase with a, minimum change in speed, thus preventing any tendency to damage the sheet or blank while the latter is passing from its non-moving to its maximum speed feed condition.

Referring more particularly to Figs. 5 to' 7, the general arrangement of advancing mechanism is maintained, one difference being in the use of a plurality of the contactproducing structures of Figs. 1 to '4, these structures being spaced apart laterally and being employed in this form by reason of .the material increase in width of the blank being fed.

In this form, carriage 20 is of increased width, and is mounted on a pair of slides 19*, I the carriage being arranged to support bearings which provide for a pair of rolls 27 at the advance end and a pair of rolls 31 at the rear end, together with a pair of the bands 32 mounted on the rolls as in the single band structure. The pawl and ratchet wheel structure is employed with each roll 27, as shown in Fig. 6.

In these figures I have shown crank wheel Zl as carried by the shaft of one of the rolls raw 1.

'the bottom of the pile beforeactual advance of the selected blank is had. This will be appreciated if it be considered that a pile of blanks of this type would have the flaps practically in vertical alinement, these flaps beingspaced from the body of the blank by slits ca. If, therefore, advance of the blank be had while the flaps are in alinement, there is possibility that a flap edge would engage with an edge of the blank above it,'resulting in possible mutilation of either or both of the blanks. 1

This effect is avoided by shifting the blank which is to be advanced laterally a distance sufficient to carry the slitted portions out of alinement with the similar portions of the blank above it. For instance, if the blank of Fig. 8 be shifted in the direction of therarrow, the. distance of transverse movement. would be sufiicient to entirely expose one of the flaps a while the other'flap a would be shifted to a position beneath an unslitted portion of the blank above it, in

which position, the slits of the selected blank would be entirely outof position to engage the slits of the superposed blank, so that advancing movement of the selected blank can be had without interference. The mechanism .for producing this result is shown in Figs. 5 to 7 and is now described:

Carriage 20 carries a lateral extension 20 to which pitman 22 is secured, the reciprocating movements of the carriage being obtained in this manner. '37 designates a link having one end pivotally mounted, as at 38, on the carriage, the opposite end of the linkbeing pivotally conectedto the end of an arm 39 of a bellcrank lever 39 pivoted at 40 to the under face of the table top. The

' other arm 39 of the lever has its free end connected to a link 41 which, in turn, is

V pivotally connectedfto a slide 42 mounted .inguides43 carriedby the table. Slide 42 has an'upwardly projecting portion 42" mov- I able in a slot 44 of the table, portion 42 i .havinga' T-shaped member 45 secured thereto and located to move on top of the table,

member 45, having a thickness not greater thanthe thickness of the blank which is to V be shifted, the lengthof member 45 being' such as to provide for a more or less extend ed-contact with a longitudinal edge of the blank to be shifted.

1 :If, therefore, the pile of blanks be positioned for instance as shown in full lines in'Fig; 7 and the position ofthe blank to be advanced is as shown in dotted lines in said figure, shifting of theblank fromithe full the movements of the carriage in returning to position to advance the blank, this action being provided by the inward movement of member 45 which first passes into contact with the blank, indicated at A in Fig. 6, the continued movement of member 45 shifting the position of the blank from the full line position to the dotted line position in Fig. 6. In providing this movement, it will be obvious that the movement of the carriage toward the left in Fig. 6 causes thebell crank lever 39' to be rocked counterclockwise (Fig.

6) through the action of link 37,.this movement of lever 39 moving slide 42 inward through the operation of link 41 When the direction of movement er the carriage changes to the advance, lever 39 1s rocked 1n the opposite direction-01ockwise-which, through the connections, begins withdrawal movementof member 45, the resultnbeing that said member. is returned to itsinitial position ready to. advance and contact with the blank next to be fed as the operation continues. 7

As will be understood, advance of the blank in the transverse direction is had while the carriage is returning from advancing the preceding blank (t which time the band-formed carriers are inactive to shift the position of the blank. As soon as these carriers become actlve to advance theblank,

the direction of movement of member 45 shifts so as to take it out of contact with the blank edge, leaving the latter free to advance without liability of being interfered with bycimemb'er 45..

1 line to the dotted line position will be had by Through the connections shown, the blank movements, although 1n two directions at right angles to each other, are provided by a single mechan1sm-p1tman 22the arrangement being such as to absolutely 1nsure a proper timing relation between the two movements of the blank.

'Aswill be seen, the structural elements which comprise the feeding mechanism of either form shown is of simple type, efficient in operation, durable in construction, and

capable of manufacture ata comparatively low cost. At the same time, the general ar-v rangement and structure is compact'in form I so as to permit its ready application to ipackagmg or other types of mechanisms requiring the feeding of a blankor label in sheet form. 7

' WVhile I have shown'and described several ways in which my invention maybe carried into effect, it willbe readily understood that changes or modifications therein may be required or desiredin meeting the exigencies of the particular usein which the general principles of the feeding mechanism'may be employed, and I reserve the right to make any and all such changes as may be found necessary or desirable in so far as the same may fall within the spirit and scope of the invention as expressed in the accompanying claims. a

Having'thus described my invention, what I claim as new, is:

1. In mechanism forfeeding individual blanks from a pile of blanks and in combination, blank segregating and advancing means operative to deliver a blank from a pile, said means including a reciprocating carrier movable in a fixed path and having a blank-contacting face elongated in the direction of blank advance and held against movement independent of the reciprocating movement during the blank advancing movements and rendered additionally movable during the movements of the carrier in the opposite direction of reciprocation.

2. In mechanism for feeding individual blanks from a pileof blanks and in combination, blank segregating and advancing means operative to deliver a blank from a pile, said means including a. reciprocating carrier having a blank contacting face elongated in the direction of blank advance and with the ends of the contact zone increased inwidtlnsaid carrier being held against movement independent of such reciprocating movementduring the blank advancing movements and rendered additionally movable during the movement of the carrier in the opposite direction of reciprocation. Y

3. In mechanism for feeding individual blanks from a pile of blanks and in combi-- nation, blank segregating and advancing means operative to deliver a blank from a pile, said means including a reciprocating carriage, a pair of rolls mounted thereon with parallel axes, an endless band connect: ing said rolls, said rolls and band constituting a carrier, said carrier being normally positioned beneath and tending to form a support for the blanks, the upper run of said band and the top faces of the rolls forming a blank-contacting zone elongated in length and increased in width at its ends, and means for retaining said carrier against movement j independent of and during the advancing movement of the carriage, said means being operative to permit free additional movement of the carrier during movements of the carriage in the opposite clirection. V

4. In mechanism for feeding individual blanks from a pile of blanks and in combination, blank segregating and advancing means operativeto deliver a blank from a pile, said means including a reciprocating carriage, a pair of rolls mounted therein with a parallel axes, an endless band connecting' saidrolls, said rolls and band constituting a carrier, said carrier being normally positioned beneath and tending to form a support for the blanks, the upper run of said band and the top faces of the rolls forming a blank-contacting zone elongated in length and increased in width at its ends, and pawl and ratchet mechanism operative on said carrier for preventing movement thereof independent of and during the advancing movement of the carriage and permitting free additional movement of the carrier during movements of the carriage in the opposite direction.

5. In mechanism for feeding individual blanks from a pile of blanksand in combi-V nation, blank segregating and advancing means operative to deliver the bottom blank from the pile, and feed mechanism inthe path of travel of the advancing blank, said means including a pair'of rolls having parallel axes and connected by an endless band, said rolls and band constituting a carrier having an elongated blank-contacting zone increased in width at its ends, and means for preventing rotation of the rolls during advance movement of the carriage and in the absence of blank-drawing action at a speed greater than the travel speed of the carriage, and permitting additional movement of the rolls and band in the presence of such excess blank-drawing speed and during movement of the carriage in the opposite direction of reciprocation.

6. In mechanism for feeding individual blanks from a pile of blanks and in combination, blank segregating and advancing means operative to deliver a blank from a pile, said means including a reciprocating carrier having a blank-contacting face elon-. gated in the direction of blank advance and held against movement independent of the reciprocating movement during the blank advancing movements and rendered additionally movable during the movements of the carrier in the opposite direction of reciprocation, said carrier including an endless band of the closely-wound coil-spring type. v

7. In mechanism for feeding individual blanks from a pile of blanks and in combination, blank segregating, and advancing means operative to deliver a blank from the pile, said means including a reciprocating carriage, a pair of rolls mounted thereon with parallel axes, an endless band connecting said rolls, said rolls and blank constituting'a unit having a blank-contacting zone elongated in length and increased in width at its ends, and mechanism forvretaining said unit against movement independent of and during advancing movement of the carriage, said mechanism being operative to permit free additional movement of the unit tion transversely of the pile and in a direction at an angle to the path of the first shift.

9. In mechanism for feeding individual blanks from a pile of blanks and in combination, means for supporting blanks in pile formation with the blanks in substantially vertical alinement, and a blank segregating and advancing mechanism operative to shift an end blank of the pile in one direction a distance less than the width of the blank, the

major portion of the blank remaining in the same plane throughout said shift, and then to advance the blank from such shifted position transversely of the pile and in a directionat an angle to the path of the first shift.

10. In mechanism for feeding individual blanks from 'a pile of blanks and in combination, means for supporting blanks in pile formation with the blanks in substantial vertical alinement, and a blank segregating and advancing instrumentality operative to suecessively shift a selected blank laterally in the plane of the blank a distance less than the width of the blank to a position out of alinement with the pile and for advancing the shifted blank from such position, said I instrumentality including a carnage movable in the plane of blank advance, and means operatively connected to the carriage for providing the lateral shifting movements to the blank.

11. In mechanism for feeding individual blanks from a pile of blanks and in combination, means for supporting blanks in pile formation with the blanks in substantial vertical alinement, and a blank segregating and advancing instrumentalityoperative to successively shift a selected blank laterally in the plane of the blank a distance less than thewidth of the blank .to a position out of alinement with the pile and for advancing the shifted blank from. such position, said instrumentality including a reciprocating carriage having its movements in the plane of the blank advance, said carriage having means for frictionally engaging a blank during the carriage advance movement, and means operative to shift a selected blank laterally during the return movement of the carriage.

12. In mechanism for feeding individual the width of the blank to a position out of alinement with the pile and for advancing the shifted blank from such position, said instrumentality including a reciprocating element having its movements in the plane of the blank advance and adapted to frictionally engage a blank during the carriageadvancing movement, and means operative to shift a selected blank laterally on said element prior to the advance of such blank by the element.

13. In mechanism for feeding individual blanks from a pile of blanks and in combination,'means for supporting blanks in pile formation with the blanks in substantial vertical alinement, and a blank segregating and advancing instrumentality operative to successively shift a selected blank in one direction in the planeof the blank a distance less than the width of the blank to a position out of alinement with'the pile and for advancing the shifted blank in a different direction from such position, said instrumentality including means operative on the lowermost blank of the pile for shifting the blank laterally of the pile, and means operative on the shifted blank for advancing it after it has been shifted.

14. In mechanism for feeding individual blanks from a pile of blanks and in combination, means for supporting blanks in pile formation with the blanks in substantial vertical alinement, and a blank segregating and advancing instrumentality operative to successively shift a selected blank laterally in the plane of the blank a distance less than the width of the blank to a position out of alinement with the pile and for advancing the shifted blank from such position, said instrumentality including means operative on the lowermost blank of the pile for shifting the blank laterally of the pile, and means below the shifted blank for advancing the latter after it has been shifted.

15. In mechanism for feeding individual blanks from a pile of blanks and in combination, means for supporting blanks in pile formation with the blanks in substantial vertical alinement, and a blank segregating and advancing instrumentality operative to successively shift a selected blank laterally in the plane of the blank a distance less than the width of the blank to a position out of alinement with the pile and for advancing the shifted blank from such position, said instrumentality including means operative on the lowermost blank of the pile for shifting the blank laterally of the pile, and

means positioned beneath the shifted blank and formed to frictionally engage the latter for advancing the shifted blank.

16. In mechanism for feeding individual blanks from a pile of blanks and in combination, means for supporting blanks in pile formation with the blanks in substantial vertical alinement, and a blank segregating and advancing instrumentality operative to successively shift a selected blank in one direction in the plane of the blank a distance less than the width of the blank to a position out of alinement with the pile and for advancing the shifted blank in a different direction from such position, said instrumentality including blank advancing means operative on a shifted blank, and mechanism controlled by movements of said advancing means for shifting a selected blank to its blank advancing position.

17. In mechanism for feeding individual blanks from a pile of blanks and in combination, means for supporting blanks in pile formation with the blanks in substantial vertical al-inement, and a blank segregating and advancing instrument'ality operative to successively shift a selected blank laterally in the plane of the blank a distance less than the width of the blank to a position out of alinement with the pile and for advancing the shifted blank from such position, said instrumentality including blank advancing means operative on a shifted blank, and mechanism including a member positioned advancing means for shifting a selected blank to its blank advancing position said mechanisam including a member positioned above said supporting means, and operative connections between said member and the blank advancing means for reciprocating said member in directions angular to the direction of advance movement of the blank.

18. In mechanism for feeding individual blanks from a pile of blanks and in combination, means for supporting blanks in pile formation with the blanks in substantial vertical alinement, and a blank segregating and advancing instrumentaility operative to successively shift a selected blank laterally in the plane of the blanka distance less than thewidth ofthe blank to a position out of alinement with the pile and for advancing the shifted blank from such position, said tioned to receive the blank wh1le the latter are moving at such increased speed.

instrumentality including blank advancing means operative on a shifted blank, and mechanism controlled by movements of said advancing means for shifting a selected blank to its blank advancing position, said mechanism including a member positioned above said supporting means, and operative connections between said member and the blank advancing means for reciprocating said member in directions angular to the direction of advance movement of the blank, said connections providing advancing movement of said member concurrent. with the movements of the blank advancing means in returning to its initial position.

19. In mechanism for feeding individual blanks from a pile of blanks and in combination, blank advancing means, having a blank-advancing face elongated in the direction of blank advance, feed rolls in the path of an advancing blank, and mechanism for reciprocating the blank advancing means, said advancing means being ineffective to distort a blank during the means reciprocating movements, said mechanism being operative to advance the blank from its pile position into the zone of feed roll activity with increasing speed.

20. In mechanism for feeding individual blanks from a pile of blanks and in combination, blank advancing means, having a blank-advancing face elongated in the direction of blank advance, feed rolls in the path of an advancing blank, and mechanism for reciprocating the blank advancing means, said advancing means being inefl'ective to distort a blank during the means reciprocating movements, said advancing means including a carriage, said mechanism including a device of the crank and pitman type operatively connected to said carriage for reciprocating the latter.

21. In mechanism for feeding individual blanks from a pile of blanks and in combination, blank advancing means, having a blank-advancin face elongated in the direction of blank a vance, feed rolls in the path of an advancing blank, and mechanism for reciprocating the blank advancing means, said advancing means being ineffective to distort a blank during the means reciprocat ing movements, said advancing means including a carriage said mechanism including a device of the crank and pitman type operatively connected to said carriage for reciprocatlng the latter, said rolls having an angular speed not less than the maximum travel speed of the carriage and being posi- In testimony whereof I have hereunto set my hand.

HILARION on ESOOBALES.