US902751A - Paper-feed mechanism. - Google Patents

Description

G. B. MAEGLY. PAPER FEED MECHANISM. APPLICATION FILED FEB. 24, 1008.

PatentedNbv. 3, i908.

FHQE.

GEORGE B. .MAEGLY, OF KANSAS CITY, MISSOURI.

PAPER-FEED MECHANISM.

Specification of Letters Patent.

Patented Nov. 3, 1908.

Application filed February 24, 1908. Serial. No. 417,330.

[ all whom it may concern..-

Be it known that I, Gnouon B. M \EGLY, a citizen of the United States, residing at Kansas City, iuthe county of Jackson and State of Missouri, have invented certain new and useful Improvements in Pt1P81FGCCl Mechanism, of which the following is a specification.

This inventionrelates to paper feed mechanism, and more especially to mechanism for successively removing sheets of paper from a stack and advancing them one by one to the point desired, my object being to produce a mechanism of this character which operates efiiciently and reliably and which is of simple, strong, durable, compact and inexpensive construction.

To this end the invention consists of certain novel and peculiar features of construction and organization as hereinafter described and claimed; and in order that it may be fully understood, reference is to be had to which- Figure 1, is a vertical section taken on the line II of Fig. 2. Fig. 2. is a top plan view of the same. Fig. 3 is a vertica section on the line IIIIII of'Fig. 9, but with the friction roller occupying its inoperative position.

In the said drawing. 1 indicates a suitable paper receptacle containing a stack of sheets 2, pressed upward-by a follower 3, the follower in practice. exerting a yielding pressure bv preference though not so shown, as it is of common and well known construction in paper feeding mechanisms.

Super-posed upon the sides of this receptacle is a stationary frame consisting of two similar sides at and bridging the rear end of the receptacle and extending transversely thereof and journaled in the stationary frame is an idler roller 5, for the purpose of preventing the complete upward ejectment of the sheets of paper from the rear end of the receptacle, a roller being employed for this purpose to eliminate friction in the advance movement of each sheet.

(3 indicates a thin bed-plate for frame 4. overlapping the front end of the stack of paper to limit the upward movement of the same at such end. T is an arch frame rising from the sides 4 of the stationary frame at the rear end of the bed-plate. and rearward of said bed-plate and between the sides or legs of the said frame, the latter is provided the accmnpanying drawing in with depending arms 7 having vertical slots 8 wherein fit siidingly the boxes 9 in which is journaled a transverse shaft 10 incapable of endwise movement because of the sleeve 10 secured upon it snugly between said arms 7 Secured upon the ends of shaft 10 is a roller consisting by preference of two similar sections. 11 each equipped peripherally with a tread or friction surface 12 of rubber or equivalent material, springs 13 occupying slots 8 and interposed between the boxes 9 and the underlying ends of the slots 8, normally holding the roller yieldingly elevated above the plane of the stack of paper as shown in Fig. 3.

Forward of and above shaft 10, and journaled in the sides or legs of arch-frame 7, is a shaft 14., adapted to be continuously driven by a belt, or its equivalent, not shown, engaging pulley 15, secured to one end of said. shaft, and secured upon said shaft between the standards 7 is a' cam, which, like the roller, preferably consists of two sections 16, provided with concentric rubber or equivalent tired portions 17, the cam sections being adapted once in each revolution to engage and depress and incidentallyturn the roller sections, the depression-action continuing until the latter engage the topmost sheet of the stack of paper, when the concentric portions of the cam sections more positively effect rotation of said roller sec.- tions in the direction indicated by the con tiguous arrow Fig. 1, for the purpose of drawing the front portion of the topmost sheet of paper rearward from under the overlappingend of the bed-plate, the sheet between the friction roller 11, and roller 5,

buckling or bowing upward substantially as shown in dotted lines, Fig. 1.

Secured rigidly on the shaft 14, are one or more ru her-tired segments preferably one at the outer side of each section,.and

each segment by preference consists of two sections fitting adjustably together for the purpose of varying the length of the segment. As shown, each segment consists of a section 18, and a section 19, the former being equipped with a clamping bolt 20 extending through a slot 21 in section'19, the said slot being preferably enlarged at its innerside at 22 to receive the head of the bolt andthe washer 23 'mounted on the bolt. The segments are preferably arranged upon the shaft with their front ends occupymg a radial plane rearward of one of the rear endslap at its front end, the rear end of bedplate 6. Immediately, after'this action occurs, the front end-of the segments come into engagement with said overlapping front end of the sheet as shownjin Fig. 3,. and force said sheet forward upon the bed-plate a distance equal to the length of the segment, after which, its advance may be continued by any suitable mechanism.- As

"shown, the len th of the segment peripher-H ally measured, is less than that of the sheet. In practice it wouldhave to be about equal to the length of the sheet, orthe advance of-the latter would have tobe continued by 7 other means in order to draw it out of the way ofthe following sheet, as will be read ily understood.

From'the above desori tion it will be ap-r parent that I have pro need a paper feed mechanism possessing the features of ad vantage enumerated as desirable and I wish it to be understood that I do not desireto be 1 restricted to the exact details of con struction shown and described, as obvious modifications will suggest themselvesto one skilled in the art. I

Having thus described the invention, What I claim as new and desire to secure by Letters-Patent, is i 1. A paper feed mechanism, comprising a receptacle for-a stack of sheets of paper, a bedsplate overla ping the front end of said stack, a feed rol or near the rearend of the bed-plate,and a driven shaft provided with a dam to engage and force said roller against the paper and a tread surface to impart rotation to said roller to cause the same to withdraw the front end of the engaged sheet from below the overlapping end of the bedplate.

' 2. A paper feed mechanism, comprising a receptacle for a stack of sheets of paper, a bed-plate overla oping the front end of said stack, a feed roller near the rear end of the bed-plate,-a driven shaft provided with a cam to engage and force said roller against the paper, and a tread portion to impart. rotation to saidroller to cause the same to withdraw the front end of the engaged sheet from below the overlapping end of the bed plate, and. means to withdraw said feed roller from engagement with the paper as its rotative action ends.

3. A paper feed mechanism, comprising a receptacle for a stack of sheets of a er, a bed-plate overlapping the front en of said stack, a feed roller near the rear end of the I eoaibi bed plate, 'a driven shaft provided with a cam to engage and force said roller against the paper and a tread portion to impart rotation tosaid roller to cause the same to with draw the front end of the engaged sheet from below the overlapping end of the bedplate, means holding therear end of the stack of paper substantially immovable to cause the sheet engaged by said roller to buckle upward, and means to withdraw said roller from engagement with the paper as its rotative action ends to permit the buckled sheet to overlap at its front end, the rear end of the bed-plate. p

4. A paper feed mechanism, comprising a receptacle for a stack of sheets of paper, a

bed-plate overlapping the front end of said stack, a feed roller near the rear end of the bed-plate, a driven shaft provided with a cam to engage and force said roller against the paper and a tread portion to impart r0- tation to said roller to cause the same to withdraw the front end ofthe engaged sheet from below the overlapping end of the bedplate, means holding the rear end of the stackof paper substantially immovable to acause' the sheet engaged by said roller to buckle upward, means to Withdraw said roller from engagement with the paper as its rotative action ends to permit the buckled sheet to overlapat its front end, the rear end of the bed-plate, and means to engage the sheet overlapping the bed-plate, and move it forwardly upon the latter,

5. A paper feed mechanism, comprising a receptacle for a stack of sheets of paper, a

bed-plate overlapping the front end of the stack, a feed roller near the rear end of the bed-plate, a driven shaft provided with a cam to engage and force said roller against the paper and provided with a tread portion to impart rotation to said roller to cause thesame to withdraw the frontend of the engaged sheet from below the over lapping end of the bed-plate, means holding the rear end of the stack of paper substantially in'unovable to cause the sheet engaged by said roller to buckle upward, means to withdraw said roller from engagement with the paper as its rotative action ends to permit the buckled sheet to overlap at its front end, the rear end of the bed-plate, and a rotating segment to engage the sheet overlapping the bed late and feed said sheet forwardly upon t 1e latter.

6. A paper feed mechanism, comprising a receptacle for a' stack of sheets of paper, a bed-plate overlapping the front end of the stack, a feed roller near the rear end of the bed-plate, a driven shaft provided with a cum to engage and force said roller against the paper and provided Wlllll. a tread portion to impart rotation to said rollerto cause the same to withdraw, the front end of the engaged sheet from below the overlapping end of the bed-plate, means holding the rear end of the stack of paper substantially immovable to cause the sheet engaged by said roller to buckle upward, means to withdraw said roller from engagement with the paper as its rotative action ends to per mit the buckled sheet to overlap at its front end the rear end of the bed-plate, and a rotating extensible segment to engage the sheet overlapping the bed-plate and feed said sheet forwardly'upon the latter.

- 7. The combination with a receptacle open at its upper end and containing a stack of paper, a bed-plate overlapping the front end of the stack, a follower to press the stack of paper up against said roller and bed-plate, a feed roller near the rear end of the bed-plate, a driven shaft provided with a cam'to engage and force said feed roller against the paper and provided with a tread portion to impart rotation to said feed roller to cause the same to withdraw the front end of the engaged sheet from below the overlapping end of the bed-plate, means holding the rear end of the stack of paper substantially immovable to cause the sheet engaged by said feed roller to, buckle upward, means to withdraw the feed roller from engagement with the paper as its rotative action ends to permit the buckled sheet to overlap at its front end the rear end of the bed-plate, and means to engage the sheet overlapping the bed-plate and move it forwardly upon the latter.

In testimony whereof I afiix my signature,

in the presence of two witnesses.

GEORGE B. MAEGLY. Vi tnesses H. C. RODGERS, G. Y. THonPn.

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