US1840624A - Folding machine - Google Patents

Description

Ja'n- 12, 1932. F. s. GL'INES 1,840,624

FOLDING MACHINE Filed May 6, 1926 3 Sheets-Sheet l ZW/Zr/,

Jan. l2, 1932. F, s @UNE-5 1,840,524

FOLDING MACHI NE Filed May 6, 1926 5 Sheets-Sheet 2 Jan. 12, 1932. F. s` @LINES FOLDING MACHINE Filed May 6, 1926 5 Sheets-Sheet 5 CUD Fatented dan. 12, 1932 FREDERICK S. GLINES, OF LYNN, MASSACHUSETTS FOLDING .Application filed May? 6,

This invention relates to machines for folding the edge of sheet material and although designed more particularly for folding a binding about the edge of she-et material to form what is commonly termed a cord binding, it is susceptible of use generally in folding operations.

ln the use of folding machines for producing what is commonly known in the shoe manufacturing industry as cord or corded binding, it is customary to att-ach by stitching to the edge of the work on the right face thereof a binding in the form of a continuous strip of tape or other suitable material. The work is presented to the machine with the binding turned outwardly in a reverse direction from the edge of the work and as the work is fed through the machine means are provided for turning the tape up around the edge of the work and over and down upon the reverse side of the work. into a cemented relation therewith. It has been found diiiicult, however, in the machines heretofore in use for this purpose to secure uniformly satisfactory results. The binding must be turned tightly around the edge of the material to form the appearance of a cord otherwise it becomes loose or baggy at parts and lacks uniformity in appearance. Furthermore, the operation of pressing the fiee edge of the binding down upon the cemented reverse side of the edge of the work is apt to iiatten out the binding and destroy its rounded form and resemblance to a cord. The results in this class of work heretofore attained by machinos now in use have generally been inferior to those accomplished by hand work and in spite of the large expense necessitated many factories today prefer to make cord binding by hand rather than by machine.

rlhe principal object of my invention is the provision of a folding machine which is adapted for doing corded work which is uniformly satisfactory and comparable to the best hand work.

Another object of the invention is the provision of feeding means so formed that the rounded character of the cord binding is not disturbed by the feeding operation.

In presenting the work to the machine with MACHINE 1926. Serial No. 107,129.

its right face downwardly, the binding is turned over in a reverse direction to be folded around the edge of the sheet material and in order to avoid flattening out the binding where it is turned reversely and thereby destroying the appearance of the cord, one feature of my invention consists in providing feeding means having a groove to receive the rounded portion of the binding so that when it is gripped by the feeding means, it is free of pressure at that point. Preferably, l accomplish this end by providing one of the two cooperating feeding members with a. groove in which li-es the rounded portion of the binding as it is gripped between the two members and fed in a forward direction.

A further object of the invention is the provision of fold turning means which is adjustable in a direction transverse to the normal line of feed in order to adjust the fold turning means to the various conditions of work.

To this end, the fold turning means may be mounted for movement in a direction transverse to the normal line of feed and means may be provided whereby the operator at any time may move the fold turning means in one direction or the other without interfering with the operation ofthe machine. In the form of means shown the fold turning member or plow is-slidably mounted and is held in a retracted position by any suitable resilient means such as a spring. For moving it in a forward direction to regulate its relation to thework any means convenient for operation by the operator may be provided, such, for instance, as a finger screw adapted to engage the end of a bell crank lever, the other end engaging the rear end of the plow. By turning the finger screw in one direction or the other the bell crank lever may be operated to push the plow against the compression of the spring or may be turned in the other direction away from the end of the plow in which case the spring forces the plow rearwardly to maintain Contact with the bell crank lever. This enables the operator to adjust the plow at any time transversely to the normal line of feed to suit various condi- 2 Leidse@ tions in the work and this may be done even when the machine is operating. By employing a finger screw threaded through a suitable support, a very fine adjustment of the plow may be almost instantaneously attained by the operator without any appreciable effort on his part.

An additional object of the invention is to provide pressing means adapted during the pressing stroke to wipe the binding inv-.Yard lv from the edge of the material 'in order to fold it'tightly around the edge of the worl anc thereby to secure a close fitting, even and uniform cord binding free from loose or baggy portions.

To this end, one feature of my invention consists in providing a fold pressing or hainmer mechanism in which the pressing surface has a reciprocating motion in a path transverse to the normal'line of feed during the up and down movements of the hammer. By means of this reciprocating movement, the pressing surface of the hammer moves in a forward direction with relation to the hainmer and toward the inner portion of the wort on the downward stroke thereby securing a wiping action as it engages the binding and carries it downwardly toward the revers side of the material, this action tending to tighten the binding around the edge of the work and to press it down upon the work into a cemented relation therewith. Another feature of the hammer mechanism consists in providing a pressing surface which is cut away at its rear end to avoid pressure upon the rounded edge portion of the cord binding thereby avoiding any flattening ace-ion and leaving it in perfect rounded form.

Other objects of the invent-ion will be more specifically set forth and described hereinafter.

In the drawings illustrating one form of my invention, Figure l is a side elevation of the operative end of a machine constructed and adapted for operation in accordance with my invention; Fig. 2 is a bottom plan view of the end of the lower arm looking` upwardly in Figure l; Fig. 3 is an end elevation of the upper arm and instrumentalities mounted thereon and the work plate portion of the lower arm; Fig. fi is aside elevation of the fold pressing mechanism, showing the fold-presser in a raised position; Fig. 5 is a similar View to Fig. e showing the fold-presser in a lowered pressing position; Fig. 6 is a side elevation partly in section of the operative portion of the fold pressing mechanism onY an enlarged scale showing the same in a raised position; Fig. 7 is a view similar to Fig. 6 but showing the fold presser in pressing position; Fig. 8 is a vertical longitudinal sectional view of the fold turning means with the leverv for adjusting it longitudinally shown in elevation; Fig. 9 is a plan view of the fold turning means and the means for adjusting it transversely to the normal line of feed; Fig. l0 is a view partly in elevation and partly in section showing work having a binding attached thereto in conjunction with a guiding member and a grooved feeding element illustrating the method of feeding' the worlr without VHattening the turned portion of the binding; Fig. ll is a similar view of vthe worl in conjunction with the idler member of the feeding means and with the fold turning means; Fig. l2 is a sectional view showing the hz nmer pressing the edge of the binding down upon the revers-e side of the work; and Fig. l?) is a view in perspective of the finished work.

My invention for purposes of illustration only is herein shown as applied to folding machines of the general type shown and described in United States Letters Patent No. 1,294,919, issued to lVilliam F. Lautenschlager, Februaryv 18, i919, and erefore only that end of the machine containing the operating instrumentalities is shown since the actuating means shown in said patent for operating such of the folding instrinnentalities as have motion would be utilized in the present machine.

Referring to the drawings, 2O indicates the end of a lower arm and 2i the end of an upper overhanging arm, the two arms together with a standard or post (not shown) from which they spring laterally constituting the frame of the machine. The lon/er arm e3:- tends laterally outwardly and is provided with a datwoiii-supporting ilate 2Q on its upper face and the upper arm is bent downwardly so that its end is in close oroximity to the end of the lower arm. A main shaft 23 is rotatably mounted in the lower arm and two rock-shafts are rotatably mounted in and carried by the upper arm, one, 24, being a feed-shaft and the other 25 being a lift shaft. These two shafts are operated from the main shaft as shown in said Lautenschlager patent.

The operating instrnmentalities for performing the feeding and folding worn are mounted on the ends of the two arms for cooperative action and comprise a guide 2T for guiding the worlr by engagement with the edge thereof as it is fed through the machine, a feed-foot 28 cooperating with an idler roll 29 for feeding the worl: forwardly in an intermittent steiLi-bj-,f-step manner, a presser-foot 30 for holding the worl; between the feeding movements, a plow 3l for turning over the edge to be folded and a pressing member 32 for pressing the turned over edge upon the body portion of the work into a cemented relation therewith. Of these members, the guide, feed foot and presser-foot are carried by the upper arm and the idler roll, plow and pressing member by the lowerl arm.

For feeding the work through the machine,

the feed-foot 28 is formed on the lower end of a feed-bar 34 which is `loosely mounted for reciprocation in a cylindrical housing` supported by a bracket 36 fastened by a screw 37 to the end of the feed-shaft 24 whereby the rocking of the feed-shaft oscillates the housing and imparts a forward and backward movement to the feed-foot. For imparting a reciprocating movement from the lift shaft to the feed-bar in the housing, a split collar 38 is fastened to the top end of the feed-bar by a screw 39 and carries a screw-pin 4() upon which is loosely mounted a squared block 41 loosely riding in the ycked -upper end of a link which at its lower end is pivotallj connected to an arm 43 fixed on the lift-shaft 25. The rocking of the lift-shaft raises and lowers the link 42 and the link in its reciprocating movement carries the feed-bar with it through the instrumentality of the block and collar. To permit the feed-bar to yield slightly when it engages the work and yet to keep the feedbar in a lowermost position so far as the yoked link permits, a spring 44 is interposed between the upper end of the feed-bar and a hood 45 fastened to the link 42 by a screw 46. The upper end of the feed-bar has a shallow bore for receiving the lower end of the spring to hold it in position. A fibre washer 47 may be mounted on the feed-bar between the collar and the upper end of the housing for preventing wear on the parts.

The idler roll 29 is rotatably mounted in position for cooperation with the feed-foot in the feeding operation on a screw 50 set in the end of the lower arm and is held therein by a. washer l. ln order to avoid flattening out the cord binding by the pressure engendered bythe gripping of the work between the feeding members in the feeding operation a groove or recess may be formed in one or both of said members for accommodating the rounded portion of the cord binding.

In the drawings, the idler roll 29 is shown as provided with such a groove 52, (Figs. and ll) but if desired, the feed-foot may be similarly formed.

As a result of the foregoing construction and of the proper timing of the rocking movements of the feed-shaft and the liftshaft respectively, the feed-foot is given a four-motion movement. In its initial starting position is a forward feeding movement (away from the operator) thereby feeding the work one step in the machine at the end of which the operation of the lift-shaft causes the feed-foot to be raised from the work and to be held in a raised position during the ret-urn movement toward the operator when the feed-foot is permitted to descend and to engage the work again in its initial position.

In the Lautenschlager type of folding machine herein before referred to the work support 22 is recessed on that side toward the operator to receive a rectangular shearing block 54 which rests upon the top face of the diminished extreme end 55 of the low-er arm and is held in place by a pin 56 threaded into said block and provided with a washer 57 on its lower end overlapping the bottom face of the end 55 and by a nut 58 threaded on the lower end of the pin 56. By cutting an angular recess 60 in that edge of the worklsupport (F ig. 1) adjoining one side of the block 54 and bevelling that side of the said block l secure an oblique edge which tends to grip the binding when the work is pressed down upon the front edge of the work support and to straighten out the. binding in a direction away from the work as it is fed forward and thereby to prepare the binding for the turning over operation. Then the operator presents to the machine work having a binding attached to one edge thereof, it is customary to turn the binding in a reverse direction outwardly from the edge of the material and the oblique edge above described serves' to pull the binding outwardly to prevent loosen-ess where it is turned reversely.

For guiding the work any suitable means may be provid-ed which is adapted for engaging the edge of the material to which the binding is attached and one such means is vsho-wn comprising the overhead depending guide 2?' formed on the end of a guide-bar 63 loosely mounted in collars 64 formed on one end of a plate bracket 65 fastened to the upper arm by screws 66. A split block is adjustably secured to the-guide-bar by a screw 68 and helical spring 69 under compression on the guide-bar between the split block and the upper collar 64 holds the guide in a downward position, By adjusting the split block on the guide-bar the relation of the guide 27 to the work is determined. The

end of the plate bracket 65 is provided with a should-er 70- which is adapted to receive the split end of the block 6Twhen the guide bar 1 is raised and turned a quarter revolution and thereby locks the guide in a raised inoperative position. Turning the guide-bar back a qua-rter revolution in. the other direction releases the split block from the shoulder and the spring forces it downwardly into operative position. A small finger-piece 'Z2 may be threaded into the block 6'? to facilitate the manipulation of the guide by the operator. This construction permits the guide to be variously adjusted in relation to the work or to be entirely dispensed with if desired either by locking it in a raised position by merely turning` it in the proper direction or by loosening the screw 68 and withdrawing the Iguide bar entirely.

The presser-foot 30 which holds the worl between the feeding movements is formed on the end of a presser-arm 74 which is inte- NTT iii)

gral with an upright arm or lever (Fig. 3) The two arms are in perpendicular relation to each other and are pivotally movable as a unit at their junction point on a laterally extending shaft 76 fitted in a suitable bearing parallel to the lift-sha t in the end of the upper arm. The presser-arm is operated to raise and to lower the presser-foot at the proper times by the co-operative action of the lift-shaft and a spring. The lift-shaft is provided with a sh rt arm v77 which is adapted to engage the end of a screw 78 threaded through the arm 75 above the pivot point and held in adjusted position by a nut 79. Through a right-angled arm or bracket 80 formed on the upper arm is threaded a screw 81 in the hollow` end of which is placed a spring 82 abuttingl against the arm 7 5. A nut 84 serves to hold the screw in adjustment. The spring 82 is normally under compression thereby tending to force the arm 7 5 toward the operator and to maintain the screw 78 in engagement with the arm on the lift-shaft. The rocking of the lift-shaft in one direction raises the presser-foot and in the other direction the spring 82 lowers the presser-foot, the movement of the presser-arm being opposite to the movement of the feed-bar. lVhen the feed-bar is raised by the rocking of the li t-shaft in one directionj the s ring 82 forces the presser-arm down and when the feed-bar is lowered by the rocking of the lift-shaft in the other direction the presserarm is raised by the arm 77 against the pressure of the spring 82. The timing of the movements of the presser-arm may be regulated by adjusting the screw 78 to have the work held by the presser-foot before it is released by the feed-foot.

To enable the operator to raise the presser foot and feed foot simultaneously and independently of their operating means at any 'time either for inserting worlr in or removing from the machine, a collar 83 fixed on the rear end of the shaft 7 6 and to this collar is secured a lever 85 by a screw 86y the end of said lever being adapted to be connected to a foot treadle (not shown) for depressing the lever and turning the shaft 7 5 to raise the presser foot. The presser foot when raised engages the shouldered end of the presser bar 34 and raises it and the presser foot 28 and an arm 102 secured by screw 103 to the presser arm is so located that it engages the block 67 to raise the guide 27 so that the raising of the presser arm also' raises the feed foot and guide to allow the work to be inserted or removed from the machine.

For turning up tho edge to be folded, the plow 31. in the form of an elongated block, is provided with a curved turning surface 87, resen'ibling the operative surface of a plow. and t ie edge to be folded is, in the feeding of the work, pressed against said surface and turned upwardly and over toward the body portion of the work in position to be engaged by the pressing means. For adjusting the plow in relation to the work and transversely the normal line of feed, any suitable means may be provided for moving it longitudinally toward or away from the work and one form of such means is shown as follows. The plow is provided with a vertical longitudinal slot 88 within which is mounted a screw 89 threaded into the work support 22, the head of the screw overlapping the top face of the plow to hold it down upon the work support. The slot permits of a longitudinal movement of the plow in relation to the screw 89. The rear portion of the plow is hollowed out for receiving a spring 90 which abuts at one .end the. screw 89 and at the other end a small screw 92 threaded into the bore in the plow to close the opening. the head' of the screw 92 being flush with the rear end of the plow. The spring 90 is under compression and thereby normally holds the plow in a retracted positien. Pivotally mounted on a screw 93 threaded into a suitable part of the end of the lower arm is a bell crank lever 95, one end 96 of which is turned upwarc ly for engagenientwith the rear end of the plow and the other end 97 is turned over for engagement by a headed screw 98 threaded through a side wall 99 of the end of the lower arm and in convenient position to be reached and manipulated by the operator. lVhen the screw 98 is turned inwardly it presses against the end 97 of the bell crank lever and throws the plow forwardly compressing the spring 90. Turning the screw in the opposite direction moves it away from the end 97 of the bell cranlr lever and the spring 90 then retracts the plow against the end 96 of the lever and turns the lever until the end 97 again comes into engagement with the screw 98. For holding; the screw 98 in adjusting position the wall 99 may be provided with a small vertical bore above said screw to receive a helical spring 100 which is held under compression .figainsu said screw by the work support (Figs. 8 and 9). Y

The adjustment of the plow in relation to the worl; to suit varying conditions is therefore at all times within the control of the operator and the mere manipulation of the screw 98, the head of which maybe knurlcd to afford a convenient finger grip enables the operator to adjust the plow at any time and even during the operation of the machine and this adjustment can be regulated to al very tine degree. It is to be ui'lderstood that the means shown in the above connection are illustrative only and that various other forms of means may be provi ced for accomplishing this object within the scope of my invention. For pressing the binding downwardly upon the body portion of the worlr the pressing member 32 is formed on the forward end of an elongated plate 106 carried on the forward portion 107 of a presser lever 108. On its back face the plate is provided with an pwardly extending flat lug 109 which projects through a longitudinal slot 110 in the lever 108. The slot is of suhicient length to permit of a limited longitudinal movement of the plate 106 w iich is held against lateral movement by a longitudinal tongue formed on its back face which engages a corresponding groove in the bottom face of the lever 108 and is held up by a spring 111.

F or imparting an up and down movement to the pressing member 32 the presser lever 10S is pivotally mounted midway on a fixed shaft 112 held in two end bearings 113 set in the work plate of the machine and is connecte-d by links to the main shaft to receive therefrom an oscillating movement on the shaft 112 as a center. 0n the end of the main shaft 23 is mounted a collar 11sL in which is threaded eccentrically and in a longitudinal, direction a pin. 11.5 to receive a split collar 116 held thereon by a nut 117. The split eollar 116 is provided withears to receive a pin 113 for securing thereto the lower yoked end of a link 110 to the upper end of which is pivotally mounted on a screw 120 a link 121 which in turn is pivotally connected at its upper end by a pin 122 to a link 123 con 'I nected by a pin 1211 to the rear end of the pr er lever 108. rFliese links form a universal connection between the main shaft and the presser lever.

ln order to make the presser lever resilient so that it may yield at its pivotpoint when the finalpressing is effected andalso when seams or thickened portions of the work are under the pressing member, the presser-lever is provided with a vertically elongated opening to receive a bearing collar 131 fitting the fixed shaft 112, the presser lever therefore being capable of a slight vert-ical movement at its pivot point on Vthe collar 131. 'llo-hold the pr lever in a normall downward position at its pivot point a vertical'depending yoke 133 is formed integral with the presser' lever and joined thereto at its pivot point. the yoke 133 is a bolt 135 having its end hollowed out to receive a helical spring 136 which abuts at its upper' end the lower arm of :IMU-shaped member 137, the upper arm of which abuts the collar 131. rPhe lower arm of the member 137 may be provided with a depending pin 138 for centeringthe upper end of the spring 136. By turning th-e bolt the pressure of the spring` may be regulated and` thereby the pressure of the pressing member 32 upon the work before the presser lever yields at its pivot point.

Upon a shaft 140 fixed transversely in the lower arm and held by a set-screwr 141 is loosely'mounted at its two ends a yoke 142 which encircles the connected ends of the links 121 andL 123 and is connected to the pin Threaded through the lower arm of 122 which is extended to pass through the sides of the yoke, the latter being held thereon by the cotter pins 126. The yoke thereby controls the universal movement of the links between the main shaft and presser lever.

For reciprocating the pressing member during the movement of the presser lever so that the former moves in a forward direction on the downward stroke and in a rearward direction on the upward stroke of the latter, an arm is lined in an upri lit position on the inner face of one side of tie `yoke 1112 by a screw 1711and nut 152. The upper end of the arm is turned over laterally and bored to receive looselya screw 1511 threaded into a block (Figs. 6 and 7) having a split end to receive the end of the lug 100 on the pressing member plate 106 and a. pin 156 for pivotal attachment thereto. A nut 157 holds the screw in adjusted position in the block and a helical spring 158 under compression l:between the nut and the head of the arm 150 holds the plate 106 in a forward position yet permitting a retraction when necessary.

ln Figures 4 to 7 inclusive is illustrated the movement of the pressing member on the downward and upward strokes of the presser lever. The pressing member may have its pressing' surface corrugated or roughened so when it engages the turned over binding on the down stroke it will have a tendency to grip it and carry it forward thereby tightening its `fold around the edge of the material. rlhe pressing surface is so located on the plate that when down it presses only that portion of the binding which is in engagement with the body portion of the work and the plate is cut away as shown in Fig. 12 so that the rounded edge of the work is not under pressure and is not flattened. The forward corner toward the operator of the pressing member may be cut obliquely-to avoid straining the turned over port-ion of the binding at the plow and to lay it down in a. natural curve.

In the operation of the form of my invention herein shown and described upon work havin@f a binding attached to one edge thereof, the operator before presenting the work to the machine turns the binding 171 outwardly in a reverse direction and away from the body of the work and then places the work in fiat form with the right side lowermost under the feed-foot of the machine and starts the machine in operation. Ars the work is fed forward by the cooperative feeding action of the feed-foot and the idler the overhead guide is in engagement with the edge of the material above the binding thereby guiding the work in its progress through the machine. Generally the operator holds the work down upon that edge of the work support nearest to him with the left hand using the right hand for guiding and for such other manipulations as may be required. The pressure of the work down upon the work support causes the binding to be engaged by theoblique edge GO in the front of the work support which tends to straighten out the binding away from the body of the material as the work is fed forward. Then the binding engages the turning surface of the plow, it is turned upwardly thereby and as it leaves the plow is bent toward the bot y portionV of the material in which position it is engaged by the pressing member on the downward stroke of the presser lever. The corrugated or roughened surface of the pressing member has a tendency to grip and hold the binding after engagement therewith and to pull it over toward the inner portion of the material on the downward stroke thereby tightening the binding around the edge of the material until it is pressed into cemented relation with the body portion of the material. The construction of the pressing mechanism is such 'that the final .pressure is a resilient pressure consequently the binding adheres firmly to the material. In all of these operations, the corded portion 172 (Fig. 13) of the binding is not subjected to any pressure whatsoever of the operating parts as a result of which its rounded form is retained and at the conclusion of the work the material presents the appearance shown in Fig. 13 having a rounded and perfect cord binding. kIn case the operator finds it necessary during the operation of the machine to adjust the plow either toward or away from the work to secure better results, he manipulates the linger screw controlling the bell crank lever' which moves the plow and thereby gets a perfect adjustment of the plow in accordance with the particular conditions then present.

It is to be observed that my invention is particularly adapted for the performance of work calling for cord binding which presents problems that are somewhat different from those presented by work having its edge alone folded over upon the body portion of the material. @ne of these conditions is that the cord binding when completed should be compact and rounded in appearance to simulate a cord and this result cannot be acconr plished if the corded portion of the binding is subjected to any pressure whatsoever of any of the operating parts of the machine. My machine is particularly adapted for folding cord binding on convex curves where there is a surplus of material and in which the binding must be stretched about the edge of the material to avoid a loose or wrinkled effect and for that reason the pulling of the binding around the edge of the material on the downward stroke is of great importance.

Although my invention is shown as applied to a folding machine of the Lautenschlager type, it is to be'understood that with slight variations which would be apparent to one skilled in the art, it may be adapted to folding machines of other types of construction. It may further be found of use in folding machines generally and some features of my invention such as, for instance, a transversely adjustable plow are especially adapted for use in all kinds of folding machines.

My invention is not to be limited to the form herein shown and described since it may be embodied in various other forms of construction within the purview of the following claims.

`What I claim is:

1. A folding machine having, in combination, means for feeding material lhaving a binding stitched to one edge thereof, means for turning said binding around the edge of said material, pivotally mounted means for pressing said turned binding down upon the body portion of said material, and means operating on the downward stroke of said pressing means for moving the same outwardly in a direction transverse to the normal line of feed to wipe said binding inwardly from the edge of said material to tighten said binding around said edge.

2. A folding machine having, in combination, means for feeding material having a binding attached to one edge thereof, means for turning the free edge of said binding around the edge of said material, pivotally mounted means for pressing said binding down upon the body portion of said material and means operating on the downward stroke of said pressing means for moving the same outwardly from its pivot point and transverse to the normal line of feed to wipe the binding inwardly from the edge of said material to make a tight fold therearound.

3. A folding machine having, in combination, means for feeding material to be folded, fold-turning means and fold pressing means comprising a pivotally mounted member, a pressing surfaced member carried thereby and means operating on the down stroke of said first mentioned member for moving said last mentioned member outwardly on said first mentioned member and transversely to the normal line of feed.

4. In a folding machine, the combination with feeding and fold turning means of fold pressing means, comprising a pivotally mounted lever, a pressing member loosely mounted on said lever and movable thereon longitudinally thereof and means operating on the down stroke of said lever for moving said pressing member in a forward direction on said lever.

5. In a folding machine, the combination with feeding and fold turning means of fold pressing means comprising a pivotally mounted member having its end provided with a vertical longitudinal slot, a pressing member provided with a lug on its back face passing through said slot and means connected to the end of said lug for moving said pressing member on said lever longitudinally thereof and in a forward direction on the downward stroke of said lever.

6. ln a folding machine, the combination of two coo ierating members for feeding material having a binding attached to one edge thereof and turned in a reverse direction, means for turning the binding around the edge of said material and means for pressing the bindin 0' on the reverse side of said ma` terial; said feeding and pressing members being both provided with recessed portion-'5 to receive the turned portion of the binding `to avoid pressure thereon and to maintain it in rounded condition.

7. In a folding machine, the combination of two cooperating members for feeding maerial having a binding attached to one edge thereof and turned in a reverse direction, one of said members being rotatable and provided with a peripheral recess adapted for receiving the turned portion of said binding during the feeding operation to prevent pressure thereon, normally stationary means for turning said binding around the edge of said material and means for pressing said turned binding upon the reverse side of said material.

S. In a folding machine, the combination of a feeding member and an idler member, said two members cooperating to feed material having a binding attached to one edge thereof and turned in a reverse direction and 'said idler being provided with a groove to receive the turned portion of said binding to prevent flattening thereof during the feeding operation, means for turning said binding around the edge `of said material and Vmeans for pressing said binding upon the body portion of said material.

9. A folding machine having, in combina-- tion, means for feeding material to be folded, fold-turning means normally stationary, manually operable means for adjustin(Y said fold-turning means transversely tothe normal line of feed without interfering with the operation of the machine, and -means for pressing said turned over edge upon the body portion of the material.

l0. A folding machine having, in combination, means for feeding material having a binding attached to one edge thereof, means for turning the free edge of said'binding around the edge of said material, manually operable means for moving said turning means transverselythe normal line of feed at the will of the operator and during the operation of the machine and means for pressing said binding upon the body portion of said material.

11. ln a folding machine, the combination of a wor.; supp-ort, means for feeding the material to be folded, fold-turning means, said means being adjustable during the operation of the machine in a direct-ion transverse to the normal line of feed, a spring for holding said 1)low normally in a retracted position and away from the wor-li, means 'within the control of the operator for moingr said plow foi"\-..'ardl,f against the compression of said spring to regulate the relation of said plow to said work and fold pressing means.

l2. folding machine having, in combination, means for feeding material having a binding attached to one edge thereof, a plow for turning said binding around the edge of said material, resilient means for holding said plow in a retracted position, means for moving said plow forwardly toward the work and against said resilient means, said moving means being within the control of the operator and orL rable without interfering with the operation of the machine, and means for pressing said turned binding upon the body portion of said material.

13. ln folding machine, the combination of means for feeding material, a plow for turning up the edge of sai-d material, a pring for hol ling said plow in a retracted position, in ans within ine control of the voperator for moving said plow during the operation of the machine in a direction transverse to the normal line of feed and toward the work to regulate the relation of the plow to the work and means for pressing the binding upon the body portionof the work. r

l-l. A folding machine having, in combination, means for feeding material having a binding attached to eine edge thereof, a plow for turning the free edge of said binding around the edge of said material, said plow being movable longitudinally and in a path transverse to the normal line of feed during the operation of the machine, means within the control'of the operator and in engagement with the rear end of the plow for movingsaid plow forwardly, a spring for holding said plow in a retracted position in engagement with said moving means and means for pressing said binding` down upon the body portion of said material.

A folding machine having, in combi` nation, means for feeding material having a binding attached to one edge thereof, means movable pivotally and in a straight path longitudinally for turning said binding around the edge of said material and means for pressing said turned binding upon the body portion of said material; said pressing means having its pressing surface cut away at its rea r end to avoid pressing that portion of the binding around the edge of the material.

1G. A folding machine having, in combination, means for feeding material having binding att ched to one edge thereof, means for turning said binding around the edge of 'lli " ed lever for moving said material and means for pressing said turned binding` upon the hody portion of said material; said pressing means comprising a rectangular pressing member having a roughened pressing surface and means for moving said pressing member in a forward direction and transversely to the normal line of feed to wipe the binding inwardly away from the edge of the material during the pressing operation.

l?. n folding machine having, in combination, means for feeding material to be folded, a plow for turning over the edge to be folded, said plow being movable longitudinally in a ath transverse 'to the normal line of feed, resilient means for holding said plow in a` rected posi ion, bell-crank lever lia ving one eno 'n engagement with the rear end of said plow and means adapte to engage the other end of said bell-crank lever and within the control of the operator for operating said bell-crank lever during the operation of the v and means for pressiii g the edge to be folded iipon the body portion of the material.

i3. l folding machine having, in combination, means for feeding material to be folded, a plow for turning over the edge to be folded, said plow being movable in a path transverse to the normal line of feed, pivotally mounted bell-crank lever having one end in engage-A ment with the rear end of said plow, me "s within the control of the operator .for operating said l ell-crank lever during the operation of the machine to move said plow forwardly to adjust it 'in relation to the work, a spring for holding said plow in a retracted position against the l of bell-crank lever and means for pressing ilio turned over edoe iipoii t ie body portion of said material.

19. Ac folding n achine having, in combination, means for feeding material to be folded, a plow for turning over the edge to be folded, said plow being movable in a path transverse to the normal li ne of feed, a pivotally mounted lever for movin said plow during the operation of the machine in a forward direction to adjust it in relation to the work, a spring for holding said plow in a retracted posicion against said lever, means within the control of the operator for operating said lever to move said plow forwardly, and means for pressing the turned over edge upon the body portion of the material.

20. A folding machine having, in combination, means for feedingmaterial to be folded, a plow for tui iing over the edge to be folded, said plow being movable in path transverse to the normal line of f-ed, pivota rl i mounts plow during the operation the machine in a forward direction to adjust it in relation to the work, a spring for holding said plow in a retracted position against aid lever, :i screw member within the control of the operator for operating said machine to move said plow forwardly,

lever to move said plow forwardly, and means for pressing the turned over edge upon 'the body portion of the material.

2l. il 'folding 'machine having, in combination, ri ns for feeding material having a binding attached to one edge thereof, means for turning said binding around the edge of said material and means for pressing said bfndiiig upon the body portion of said mat rial; said pressing means comprising a pivially mounted member, a pressing member slidahly mounted on said pivoted member in a direction transverse to the normal line of feed, and means operating to move said pressing member to wipe the binding inwardly toward the body of the material on the downward stroke of said pivoted member.

22. fr folding machine having, in combination, means for feeding material having a binding attached to one edge thereof, means for turning said binding around the edge of said material and means for pressing said bindino` upon the body portion of said inaterial; said pressing means comprising a main member mounted for reciprocatory i.' ement tov-:ard and from the work, a pressg member carried by said main member and movable thereon in a direction transverse to the normal line of feed and means operating to move said pressing member on the downward stroke of said main member to Wipe said binding inwardly from the edge of said material to tighten it around said edge.

A folding machine having, in combination, ieans for feeding material having a binding attached to one edge thereof, means for turning said binding around the edge of said material and means for pressing said binding upon the body portion of said material; said pressing means comprising a main member mounted for reciprocatory movement toward and from the work, a pressing member carried by said main member and movable thereon in a direction transverse to the normal line of feed, said pressing member being out away at its rear end to avoid fiattening the rounded edge of the material, and means operating to move said pressing niember on the downward stroke of said main member to wipe said binding inwardly from the edge of said material to tighten it around said edge. v

24. In a folding machine, the combination with feeding and fold turning means of fold pressing means comprising pivot-ally mounted lever, having a longitudinal groove in the under side of its free end, a pressing member mounted on the free end of said lever and having a tongue fitting said groove and means operating on the down stroke of said lever for moving said pressing member forwardly.

25. In a folding` machine, the combination with'feeding and fold turningmeans of fold pressing means comprising a pivotally mount-- ed lever, a pressing member carried by said lever and movable longitudinally thereof and resilient means operating in the down stroke of said lever for moving said pressing member forwardly.

26. In a folding machine, the combination with feeding and fold turning means of fold pressing means comprising a pivotally mounted member, a pressing member carried thereby, means for operating said 'pivotally mounted member and resilient means for moving said pressing member forwardly in relation to said pivotally mounted member on the down stroke thereof.

27. In a folding machine, the combination with feeding and fold turning means of pressing means mounted lever, a pressing member, a spring for holding said pressing member slidably mounted on said lever and resilient means for moving said pressing member forwardly on said lever on the down stroke thereof.

28. In a folding machine, the combination with feeding and fold turning means of fold pressing means comprising a pivotally mounted arm, a pressing member slidably mounted o'n the end of said arm and resilient Y means operating to throw said pressing member outwardly on the downward throw of said arm.

29. In a folding machine, thecombination with feeding and fold turningmeans of fold pressing means comprising an arm pivotally mounted transverse the normal line of feed, a pressing member slidably mounted on and movable longitudinally of said arm and resilient means operating to throw said pressing member outwardly and transverse t0 the normal line of feed on the downward stroke of said arm.

30. In a folding machine, the combination with feeding and pressing means of fold turning means and manually operable means for moving said fold turning means during the operation of the machine in a direction transverse the normal line of feed.

31. In a folding machine, the combination with feeding and pressing means of a plow for turning up the edge of the work and manually operable means for moving said plow during the operation of the machine in a direction transverse to the normal line of feed.

In witness whereof, I hereunto set my hand this twenty-third day of April, 1926.

FREDERICK S. GLINES.

comprising a pivotallyy

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