US1596612A - Folding machine - Google Patents

Description

Aug. 17 1926. 1,596,612

I F. s. GLINES FOLDING MACHINE Filed 061;. 23, 1922 enema Aug. 11, 1926.

U'Nl TE' STATES.

P 0 FF I CE a FREDERICK S. GLINES, OF- LYNN, MASSACHUSETTS} ASSIG'NOE T0 LORENZ lIVtU'lHEB,

0F NEW'ION; MASSACHUSETTS;

' FOLDING MACHINE,

Application filed October 23, 1922. Seria1 Nb.4596,308;

This invention relates to folding machines but is more especially designed with refer ence to machines for folding'a binding .tape around the edge of sheet material.

In the manufacture of shoes, it. has been" customary to provide certain styles w th what is known as cord bindin Thi s'is accomplished bystitching'a piece 'oftape or;

suitable fabric to the right sideofthe shoe part or material to be bound at. its edge.

then by turning the binding in a reverse dii'ection over the stitching and around the edge of the material and by pressing the free ed e of the bindin material downu 2D h V on the reverse side of the shoe part or'otherj material; the engaging surfaces having previously been treated with'cement. Since the binding material is turnedin a reverse direction, the stitching is concealed and when the binding is turned tightly and smoothly around the edge of-th'e material to be bound, a finished and attractive cord edge is presented. that the binding material be turned tightly andsmoothly about the edge of the/bound material, otherwise the binding becomes loose and wrinkled when subjectedto wear and destroys the attractive appearance of the shoes.

The main object of thisinvention isthe provision of a machine adapted for this work which contains the minimum number of operating instrumentalities, and whichlis of simple construction and operation and yet eflicient.

A further objectis the provision of a gauge so constructed that it guides the ma-' terial through the machine by COHEHC D WIth' the outside surface of the upturned bind ing.

Another obyect Other objects of the invention will be. more specifically set forth and described hereinafter. v

One of the important features ofiny invention resides in the provision of a gauge substantially perpendicular in its operative portion to the work-support of the machine and extending below it which is adapted to guide the material by engagement with the It is essential in thisworlc of the invention is the provision of a gauge so constructed that it' outside faceofithebinding. In this case the material is held against'the' gaugewith the bindingupturned around its edge and between the" edge of the material'and the; gauge. This permits of theuse of an unyielding gauge which maintains its position and yet does not interfere With the feeding of the worlr'which is a distinct advantage.

Vvhen work of thischaracter is" guided "by means'of a gauge adapted to engage the edge of the material to be bound above the binding, there a tendency for the work to catch onto drag on tlie'end'of the-gauge thereby, causing defective work: By haw ing the binding upturned around the edge of the material when it is held' against the gauge; I am enabled-to set gauge nearer' the turning member or plow" and the binding is in a" position which facilitates its turning by the -plow without. subjecting its edge to strain.

A'nother'important feature of niy inven tion consists in'coinbiningthe gauge with the pressing member and in providing it with serrations or-teethso that it may be. utilized for wipingthe binding closely upe wardly around the edge of thematerial as I it is held against .the gauge. It is very essentialin applying binding'that itbe drawn tightly around the edge of the material, otherwise itwillvary in thickness and become looseand flabbyin use.

In thedrawin'gsillustrating the preferred einbodiment of'myinvention; Figure 1 is an end elevation ofa portion" of a folding machine having; my invention embodied therein; Fig; 2 is a side elevationof the same as viewed froni'the'operators seat; Fig. 3 is 1 a view in perspective on an enlarged scale 'ofa combined pressing 'member; gauge and I mounted a work-support having a bevi work plate and isprovidedwith a turned- ,end of the lift-shaft 19,.is connected by a link 26 to a stud 27'carried by a split collar 28' secured to the. upper end of the feed-bar 20, and the rocking of the'lift-shaft 19 through these hie-ans imparts an up and down movement to thefeed-bar 20 in the housing 22. The feed'bar isheld in a lowermost positionby a spring 30,- andv the idler roll with which the feedfoot co-operates in the feeding movement is loosely mounted upon a screw stud 32 set in the end of the lower arm. 2

Through the foregoing, the feed-foot is given a four-motion feed) In its forward movement (away from the operator) it is in .a lowermost position, co -operating with the idler roll to feed the material forward in the machine. At the end of the feeding movement, the rockingv of the lift-shaft 19, through the medium of the arm 25, link 26 and'collar 28, lifts the feed-bar 20 and feedfoot 24: to release the material andholds them in a raised position during their movement backward at the end of which they are dropped into initial position. The material is therefore fed in astep-by-step manner. All of the foregoing construction and mode of operation is fully shown and described in said Lautenschlager patent to which reference may behad. p

Upon the end of the lower arm 15is elled edge 51 toward the operator upon which may be arranged, ifedesired, means for wiping over or straightening out the binding in a direction away from the material to be bound as the work is fed through the. machine. The wiper shown is inth'e form of a thin plate 53 having a portion 5 1 bent under the bevelled portion '51 of the up slightly hooked-over thin edge 55, this: edge being oblique to the normal line of feed. As the material is fed through the machine, the sharp edge 55engages the bind? ing and since that edge runs obliquely from left to right in the direction of the normal fe-ed,-its effect is to draw the binding away from the material to which it issecured and thereby straighten it out. i

For turning the binding over and downi "wardly toward the reverses ide of" the material a plow or turner 58 of ordinary. form may he mountedupon the work-support '50.

and independent;

Preferably it is secured to or made integral with a flexible, strip 91, counter-sunk in the work-support 50, and held in adjusted position by a screw 92. This arrangement permits the plow to yield slightly whenever a shaft 68 mounted in the bearing 7 0 formed on the upper arm 16 and is arranged to oscillate therein. I

Secured in the perpendicular portion of the lever is a threaded screw 72 having a check nut 7 3, and provided with a longitudinal hole in its end in which is mounted a spiral spring 7 5. This spring bears against a block 76, set in an arm 77, fixedly mounted on the end of the lift-shaft 19.. Through the medium of these parts, the lever 65 is rocked by the oscillation of the lift-shaft 19 to raise and lower the presser arm and presser member, and the machine isso timed that the presser member is down between the feeding movements and elevated during the feeding movements. To hold the lever 65 in the posit-ion shown in Fig. 1 with the spring 75 abutting the block 76, a spring set in a hollow screw 81 bears against the upper portion of the lever 65. The screw is threaded through an arm 83 forming a. part of the upper arm 16 of the machine, and the pressure exerted upon the lever 65 by the spring 80 may. be adjusted by turning the screw one 'way or the other.

The foregoing construction constitutes no part of the present invention. The stationary wiping device and the pressing member are shown and described in an application for Letters Patent filed by me jointly with Lorenz Muther in the United States Patent Oflice on July 24;, 1922, Serial No. 576,965,

and the resilient plow or turner is the subject of another application to be filed by me.

The novel features of the. present invention reside in the provision of a new form of gauge and of means for wiping the binding upwardly around the edge of the material. Preferably, in theapplication of my invention to the folding machine shown, the

gauge and wiper are combined with the pressing member but it is to be understood that in the application of my invention to other forms of folding machines, it may be preferable to make said members separate The machine is then started.

the pressing memberrthe presser-arm'60 may be provided with a. bifurcation 88 which ex tends rearwardly toward the operator and then downwardly below thelower face of the presser 62through asuitable opening Hl' the'work-plate 50; the bifurcation SS'being so formed that it is substantially perpendicular to'the work-support at and just above the surface thereof, and is sufficiently: long so that it extends below the'worz-plate atalltimes. On that portion of the face adapted to en a 'ethe work the ause-8811121 be are a t: 9 b o vid'ed'with-serrations or teeth QO (seeFig. 5) so faced as'to' catch thebmdmg on the upward movement. only and F to slide over" it on the downward? movement.

The operation of the machine is as follows: The material is presented tot-he nia between the feed-footand the idler roll, the feed-foot being in its initial position ready for feeding. In this initial position the work is held: tightly againstthe gauge 88,

the tape at that point being turned upwardly around the edge of the material 'tobe bound anduin en moe-m'cnt with the 'auo'e;

7 t: o t: a

mechanism feeds the material one step, the edge ofithe work-slidmgzby the gauge wlth the binding at that pointinan upright position. During this feeding"movementthe work should be held firmly against the-gauge the nose of th e plow or turnerytlie binding is turnedi downwardly" toward l the reverse side of the material and at the end of the feeding movement the pressing member descends and presses the turned-over binding down upon the cemented reverse side of the material. As the pressing member descends the gauge 88 moves downwardly sliding by the work in engagement therewith. The pressing member remains in pressing position while the feeding means are returning to initial position and just before the next feeding movement the presser and gauge are raised and the teeth 90 on the gauge catch upon the upstanding binding at that point and draw it upwardly tightly around the edge of the material. v

The work is thus fed through the machine in a step-by-step manner, the binding being wiped upwardly by the upward movement of the gauge while. the work is held stationary by the feed foot. This action takes place as the presser member is raised from the work just after the feedfo t has come down upon the work to start the feeding movement. The wiping may be facilitated by holding the work in tight en- The feeding gagement with the gauge, in which case the binding is drawn tightly around the edge of the material.

The advantages of a gauge of the charac ter herein shown and described are manifold. it does not interfere with the turning of the binding material tightly around theedge of the material to be bound nor with the natural curve of the edge of the binding material given by theplow or'turningdevice, since gauge is outside of the binding and g ides the material through engagement with the upturned binding.

Since the ploworturning device operates to turn the binding downwardly toward the reverse side of the material and away from the gaugeyit is possible to place the gauge in close proximity to the plow andthereby secure a close grouping of the folding instrumentalities which is soconducii'e to perfectwork.

The use ofagauge having a point adapted for contact with the edge of the material above the binding interferes with the turning of the binding tightly upwardly and around the edge ofthe material at that point and consequently such a gauge n'mstlbe lo cated a sullicient distance away from the plow or turning device to permitthe tape to turn over naturally withoutstraining-the edge. This prevents close grouping of the folding instrumentalities and the perfect work which is secured by such close grouping.

In-addition, the close proximity of'my the binding to relaX or withdraw fromthe edge of the" material after it has been wiped upwardly by the gauge and before it is turned downwardly by the plow, in consequence of which a close tight fold is attained.

It is to be understood that my invention is 100 i 7 gauge to the plow gives no opportunity for not to be limited to the exact form or the l exact application herein shown and described. since it may be embodied in other forms of construction and may be applied to other forms of folding machines all within the purviewof the following claims.

What I claim is 1. In a folding machine, the combination of a work-support, means for feeding material having a binding tape attached to one edge thereof, means for turning said tape around the edge of said material and a bifurcated membe one of the branches of said bifurcated member being adapted to press the'said turned-over tape down upon the body of said material and the other of saidbranches being adapted to serve as a 1 gauge.

2. In a folding machine, the combination of a work-support, means for feeding material having a binding tape attached to one edge thereof, means for turning said tape around the edge of said material and a bifurcated member; one of the branches of said bifurcated member being adapted to press said turned-over tape down upon the body of said material and the other of said branches extending forwardly and clownwardly below said work-support and being provided with teeth for wiping said tape upwardly around the edge of said material.

3. In a folding machine, the combination with means for feeding, in a step-by-step manner, material having a-binding attached at one edge to the edge of said material of a pivotally mounted member provided with bifurcated means for wiping the binding upwardly around the edge of the material and for pressing the free edge of the binding upon the body portion of the material.

it. In a folding machine, the combination with means for feeding, in a step-by-step manner, material having a binding attached to the edge thereof of a reciprocating member adapted to act as a guide and provided.

with bifurcated means for wiping the bind ing over the edge of the material and for pressing the free edge of the binding upon the body portion of the material.

5 .In a folding machine, the combination with means for feeding, in a step-by-step manner, material having a binding attached to the edge thereof of a pivotally mounted reciprocating member provided with bifurcated means for wipingthe binding over the edge of the material and for pressing the free edge of thebinding upon the body portion of the material; said wiping means serving also to guide the material as it is fed through the machine. a

6. In a folding machine, thecombination of means for feeding ina step-by-step manner material having a binding attached to one edge thereof, means for turning said bindingv upwardly around the edge of said material and a pivotally mounted bifurcated member; oneof the branches of said bifurcated member being adapted to serve as guiding means for the material and for wiping the binding upwardly around the edge.

of the material, and the other branch of said bifurcated member being turned at right angles for pressing the turned over binding down upon the body side of the material.

7. In a folding machine, the combination of a work-support, means for feeding material having a binding attached to one edge thereof, a plow for turning said binding down. upon the reverse side of said material and means for pressing said binding to said reverse side; said pressing means being pro vided with an extension projecting at all times down below the surface of said worksu'pport,said extension being provided with serrations for wiping the binding upwardly around the edge of said material before it is turned over by said plow.

8. In a folding machine, the combination of means for feeding material having a binding attached to one edge thereof, means for turning said binding down upon the reverse side of said material and means for pressing said binding to said material; said pressing means being provided with an extension projectingtoward the front of the machine and downwardly below the" work, saidextension serving as a guide for the work and for wiping the binding up around the edge of the work.

. In witness whereof, I hereunto set my hand this 20th day of Oct0ber,'1922.

FREDERICK S. GLINES.

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