US945310A - Work-gage for fastener-inserting machines. - Google Patents

Description

F. F. ENO. WORK GAGE Fon FASTENBR INBBBTING MAOHINBS.

APPLICATION FILED JAN. 7, 1907.

Patented Jan. 4, 1910.

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WORK GAGE FOR FASTENBB INSERTING MAOHINES.

APPLICATION FILED JAN. 7, 1907. Patented 4,

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-Be it known that I, FRANK F. ENO, a citizen of the United States, residing at Boston, in the county of Suffolk, State of Mas sachusetts, have invented an Improvement in `lrVork-Grages for Fastener-Inserting Machines, of which the `following description, in connection with the accompanying rawings, is a specification, like letters on `the drawings representing like parts.

This v invention relates to work gages for machines for inserting metallic or other fasteners in stock, and more articularly to work ga es for eontrollin the position of heels of oots or shoes wit relation to any convenient form of inserting mechanism.

In securing the 'toplift to a heel pile it is customary to spank the toplift u on the projecting ends of the heel nails, ut this securin means is insufficient to maintain the top ift in position as the shoe wears under itsvarious conditions of use. Itis desirable that additional securing means, therefore, be `provided to insure'that the ytoplift will not become loosened from the heel and be lost Aduring the wearof the shoe. One form of these additional securing means ma consist in an insertion throng the'iface o the toplift and into the heel pile of one or more fasteners, of such length that they may project a sufficient distance into the heel to firmly secure vthe toplift thereto. As the ends of these additional fasteners show upon the face of the toplift, where two or more are used they should be so positioned with relation to thel edge of the toplift that they will not mar the a pearance of the finished shoe, that is, t e series of fasteners should, be placed sym- 4metrically upon the to lift.

With these genera considerations in I View, the object of this invention is to provide-a work age so constructed that securing means additional to the heel nails, as, for instance, a series of fasteners, vmay be inserted through a toplift and s mmetrically ,withfrelation to its edge without the necessity ofthe `operative using his judg- Y' nient in spacing or otherwise positioning them.

My invention will be bestf-understoodby reference to thefollowing'description, when taken in connectionwith the accompanying `drawings showing a specific embodiment:

Bpecincation of Letters Patent. Application le'd January '1, 1907. Serial No. 851,067.-

thereof, while its wilElloe more partic- 3 '1S a Side elevati@ of the partsshown in Patented Jai1..i.,.1910.7

Fig. 2,; Fig. 4 is a transverse, section takenM on the line 4-4 uf Fig. 2; and, Figs. 5, 6

and 7 are diagrammatic views illustrating the successive positionsa to -lift mayassume during the insertion oft ree additional fasteners.

In the embodiment of` my invention se-` lectedfor illustration h erein and shown in the accom anying draw1ngs,referri,ng more particular y to Fig. 1, A represents the working head of a type of metallic fastener inserting machine, generally known as the Universal Sluggier, which machine 1s fully descr1bed an illustrated in U. S. Patent to L. A. Casgrain, No.786,190, of March 28, 1905. As described in said patent, and moreparticularly in the rior U. S. Patent mentioned therein to L. oddu No. 563,478 for a nailing machine, granted July 7 1896, a driver bar b4 is mounted in suitable guideways behind a fixed face-plate b of the machine head, said driver bar having suit-` ably. attached to ita driver b, which enters a driver passage in the nose of the machine during the-operation of inserting fasteners.

.An awl c is attached to the lower end of an awl bar c', provided at one side with teeth, which are engaged by teeth on an arm c2 forming part of a two-armed lever mounted upon a studscrew c, its other arm c* being provided with a cam roll 'which enters a roove in the outer face of the camdisk c, tast u 0,11 the forward end., of the main shaft of. T e 'rear side of the cam disk c,'is provided witli a cam groove, which receives a cam roll extendin from the front of the driver bar b, sai cam reci roeating said driver bar positively up and down. The shank of the awl bar `is adapted to slide ver.- tically in ideways in a rocking frame d, having a s eeve-like hub, which embraces a hub surrounding the main shaft c7', infront of a cam disk a, mounted upon the'main shaft. The rocking'.` frame has suitably at-rv Alios d2, for the awl bar in vits vertical movement,"

and' at Aits rear side, rocking vframe` has I attached to ita guideway having a movable side d3, which parts are suitably connected to a rocking arm d5", connected to a short vrock-shaft d6, having an armv (i7, provided with a cam roll which enters a cam groove in the forward side of the cam disk als. This' rock-shaft, by engaging the sliding block, moves the rocking frame to eifectrthe ism, as described, the awl .enters the 'stock through rotation of the cam disk c, while the driver is in-its raised position, and thereafter the cam-'disk a operates, through the rocking connection described, to move the awl bar"laterally, thus feeding the stock and bringing the awl beneath the raised driver. The cam groove controlling the vertical movements ofthe awl` then operates to withdraw the awl "from the stock and moves it laterally in the reverse direction to that for feeding until the awl bar is clear of the driver. The cam disk c has been rotated to such a position at this time that the cam groove controlling the vertical movementsof the driver b", operates to forcethe driver downward quickly and drive a fastener, which, by this time has been placed beneath it. The driver is immediately withdrawn to its raised position, when the awl again descends and feeds the stock,as above described. All other features ofthe machine shown in Fig. 1, are and may be as described in the patent to Casgrain above referred to and therefore need not be referred to in detail herein. As described in said patentv to Casgrain, a gage support or arm o, is pivoted upon a stud o', mounted vin the frame of, the head A and is acted upon by a spring pin 02, which retains said support in the elevated or working position shown in the drawing, but permits it to be depressed when not needed. In the form of the present invention to the forward end of the support is connected the gage proper B (see Fig. 1), the connection being denoted generally bythe letter C. The connection C is preferably adjustable and may be of any convenient construction, but I prefer to pass a headed screw stud a through a lon tudinal slot b, in a portion of a bracket which, in the illustrated embodiment of the invention, supports the engaging portion E, of the work gage, said stud passing through a suitable a erture-iii the support o. The stud-a, is pre erably provided with a flattened collar a', which rests within the slot b, and serves as a block on which the work gage B may ride when being adjusted. The parts o and D are secured together by means of a lock nut a2 lupon the stud a. The lock nut a2, may, if desired, be operated by a handle a3. The bracket D is provided with` a series of pins e, which project into a slot or guidev f,-in the support o, thus forming a guide for the movement of one part upon the other during adjustment and preventing viously be employed, and inorder to give a neat I.appearance to the finished shoe,/tliey are preferably positioned one at each breast: l

corner of the toplift and one in the center of the rear portion of the lift, which, for convenience, I will term the curve of the fasteners. These stops or stop faces may be formed by constructing said engaging portion, designated generally the letter E, with an irregular work engaging sure face.

more projections or abutments g, preferably oppositely disposed, and when so lo-v cated, forming stop portions or faces 7L, the edges formed by the meeting edges of the .faces 71., with the forward faces of the abutments g. forming other stop portions 71X, and the remaining part of the engaging portion forming another stopface. n

Referring more particularly to Figs. 5 and 7, the mode of use of the stop faces formed by the abutments g will be readily understood. The gage is first set, by means of the connection C, so that the face i, of the One manner of accomplishing this result is to form upon said portion E, one or engaging portion E, is adjusted relativelyk to the machine head in such position that when one of the vbreast corners of a toplift is lplaced in engagement with the shoulder formed by one of the stopl faces it, and the face i, and its edge also engages one of the stop portions h (Figs. 5 or 7), on operat-v ing the machine a fastener will be inserted the desired distance from the outer edge of the lift. When three fasteners are used,

they are most conveniently inserted in the order shown in Figs, 5 to 7 ,that is, first at the one breast corner, then at the curve, and, finally, at the remaining breast corner; the lift and slice having been .appropriately turned .bythe operative during this opera-y tion. During this operation the lift engages first one stop portion h, independentlyl of the other, then the two stop portions/t,"

simultaneously, and then the other stop portion It', independently of the first.

When the gage is to be used with amachine using a type of feed such as an awl-4 feed, for instance, the machine illustrated in Mmm a f Fig.` 1, means should be providedA for allowingthe gage a transverse movement with vthe feed of the stock, which movement,'bow

ever, is not neceary where a form of feed is used that moves the stock after a fastener has been inserted. In order to provide for this transverse movement of the ga e, when it is necessary, I have shown the s ank of the engagin portion E as pivotall mount ed at y, on the bracket and mova le yieldingly in the direction of feed, for example, against a leaf spring k. In order to maintain the symmetry of the fasteners thus inserted, it 1s obvious that' those at the breast corners should be similarly spaced from the breast edge of the tophft, as well as from the outer edge of the lift Vand the fastener at the curve of the heel should be centrally disposed with relation to the two breast corner fasteners, If the engagin portion E, ofthe gage B, is located centra ly transversely lwith relation to the awl of the inserting mechanism, or ifl an awl is not used, with relation to the point at which the fastener leaves the machine, then the stop faces formed, as described, by the abutments, are

equi-distant'laterally fromfthe awl or from the point where the fastener leaves the machine. When in such location these stops will control the position of the heel for receivingjasteners at the breast corners and will insure that the fastener at one breast corner is inserted the same distance from the breast edge as the fastener `atthe other breast corner. By reference to Figs. 5 and 7, it is seen that the described stop portions or faces form means to maintain the breast corners of the heel in such position with relation to the inserting mechanism that each :fastener will be inserted in the same location with relation to the angle of its breast corner.

Frequently, when the work gage is placed upon a machine, its su port o, is out of alinement and, therefore, w en the engaging portion E, is properly adjusted longitudinally relatively to the inserting mechanism, the awl, or the point where the fasteners leave the machine, as the case may be, will not be centrally located between the stop faces h, In this case it is obvious that as the heel is turned to receive the fasteners at its breast corners, one of said fasteners would be nearer thel breast edgethan the other, according to the amount that the gage is off center transversely. In order to remed this defect I have provided transverse a justin means, generally designated by the'letter i, which may consist` ofv a set screw l, threaded through a lug m, on the bracket D, and held in any position of adjustment by means of a lock nut n, the gage, in the illustrated em bodiment of the invention, being maintained against the end of said set screw by means of the spring la. With this construction, when it is found that the engaging portion E, of the work gage is not centrally isposed with relation to the inserting mechanism, as it should be, the set screw adjust the gage transversely until such central location 1s obtained and is then locked in position. I have, through this adJustment, provided means for insuring a symmetrical location of the fasteners at the breast corners of the heel, without regard to whether the sup ort o is inproper alinemenhwith the mac ine ame.`

Frequently, the location of the heel nails is such that if the additional fastener at the curve of the heel were 'placed the same distance from the outer edge of the toplift as the fasteners at the breast corners, the awl in making its hole for the. fastener, or the fastener itself as it is driven, as the case may be, will strike one of the heelnails. As a result, either the awl will be broken or the fastener will be bent and will not enter the heel. The locationof the heel nails within the toplift can enerally be' determined by discoloration of t e leather, or by other indicating marks well-known to the shoe o'.\erative2 so that when the toplift is placed in position to receive its fastener at the curve,

yhe can tell by inspection whether or not the additional fastener will be driven upon a heel nail. If it hap ens that such is going to be the case, the a ditional fastener atthe t curve should be inserted inside of the line of heel nails butstill centrally with relation to the breast nails, so that the s mmetr of the three fasteners will not be disturbs I prefer to provide for allowin this to be is turned so as to one by movably mounting t e en aging portion E, upon, its supportin brac ret D, preferably yieldin ly, as genera ly indicated by the character A i Referring more particularly to Figs. 2 to 4, the shank of the en aging portion E, is slidably mounted in a rame p, which forms a suitable guideway and is retained within the frame by means of cross bars g, extend- ,ing across its top. A coil spring 1', is connected at one end to avpin on the engaging lportion E, and at its other end to a pin upon one of the cross bars g, in such position that the portion E, is normally maintained in its forward position. This movement may be limited by means of a shoulder s on the portion E, arranged to abut against one of the cross pieces q. Any convenient means may be emplo ed to limit the rearward movement of t e engaging portion E. As shown, the forward end of its shank is preferably in a different horizontal plane from the rearend theref,-see Fig. 3,-and when so constructed the shoulder t, thus formed limits the rearward movement by abutting against one of the cross pieces g. With this construction it is readily seen-that ifthe position of the heel nails is such that they conflirt with the insertion of the additional fastener at the curve of the heel the operative may, by pressure ugon the shoe, move the shanklof the portion longitudinally in its uide against the force of the spring 1', unt the heel has reached a position where the additional fastener will'clear the heel nails, when it may be inserted. It is obvious that this longitudinal movement of the gage merely brings the fastener at the curve of the heelnearer to the fasteners at the Ybreast corners and does not alter its transverse relation to'said fasteners, therefore reserving their symmetrical relation as is esired.

In practice, when no slugs are to be inserted' in the heel the three ladditional fasteners are preferably inserted quite near the edge of the toplift, but if the heel is to be slugged the relation of the additional fasteners vto the edge of the toplift should be altered accordin tothe location and amount of slugging to e done. For instance, if the heel is to be quarteror half slugged it is only necessar to Place the fastener at the curve of the eel artherin from the edge, and this is done by moving the engaging portion E, longitudinally, when that fastener is to be inserted, as just described. If, however, the heel is to-be full slugged, the fasteners at the breast corners should also be moved inward from the edge of the'lift, so as not to conflict with the line of slugging and, therefore, in shoes where this form 'of sluggin is used, the portion E, is moved longitu inally against the spring r, for all three fasteners. Obviously, however, where vthe additional fasteners are to be inserted into a number of shoes, successively, that are to be full slugged later, the work maybe done morequickly by adjusting the gage B, on its support o, to such position that all fasteners will be driven the increased distance inward without the necessity of using the yielding mounting G. If three-quarter slugging is used only one of the breastcorner fasteners would conflict with the slugging but, in order to preserve the symmetrical relation of the three fasteners, all three' ,the breast ed e always remains theV same.

0f course, t is latter relation could -be changed, if desired, by spacing the stop faces h, farther apart or nearer'together,

-justment t which could bc readily done by inserting another part or otherwise modifying the construction of the work engagin Surface.

In -the operation of the mac ine after adrough'the connection and the devices F, as hereinbefore described, one breastcorner of the heel is placed in contact with one of the abutments g, in such position that a plurality of the stop portions or faces are engaged see Fi 5) so'as to control the position of t e stoc a ainst movementin two directions, and a astener is inserted usuall without ressing the engaging portion backwar longitudinally. The shoe is then turneduntil the curve of the heel rests either against the sto face i, or a ainst the stop portions It', accor lin to the re ative size or contour of the heel an engaging portion E, and a fastener is driven centrall of the curve' of the to lift, the portion. being pressed backwar as shown in Fig. 6, or not, as is found necessary. When the to lift is so small that its curve engages on y the stop t and not the stops h', it is convenient to form in the stop face i, a recess or depression as i', which may be V-shaped, as shown, or of any other configuration that will ald in centering the heel with relation to the inserting mechanism. The shoe is then turned til the other breast corner rests agains the other abutment g, and the stop faces formed thereby see Fig. 7) and a third fastener'is inserted w ile the heel is in this manner maintained in correct position with relation to the inserting mechanism.

Obviously, the construction as herein illustrated,may be varied and changed in numerous articulars without departing from the spirit and scope of my invention and nothing herein contained is to be construed as limiting my invention in sco e to the particular embodiment selected fer illustration and explanation. Such alteration and modiication will be apparent to those skilled in the art.

Having thusv described my invention by means of one embodiment thereof as an illustration of the same, what I claim in addition thereto, and desire to secure by Letters Patent, is:

- 1. A .work gage for fastener inserting mav chines, comprlslng a work engaging member having a recessed edge formlng fixed and oppositely disposed abutments for engagement singly by the breast corners of a heel,

the recessed edge between said abutments I chines, comprising a yieldingly mounted plate having a recessed ed e forming opposite stop portions h h or engaglng the breast corners of a heel and intermediate stops z', z' for engaging the rear of a heel.

4. A work gage for fastener inserting machines, comprisin a work engaging member having a recesse ed e forming xed and opposltely disposed a utments for engage-V ment singly by the breast corners of a heel, the' recessed edge between said abutments being provided with stop faces for engagement by the rear of the heel, and means for adjusting said work engaging member transhavingl fixed abutments with stop faces to engage singly with the corners of a heel, and stop portions, one for each abutment, the

stop portion of one abutment being disposed to engage the side of the heel when the sto face of the other fixed abutment is engage with the corner of a heel.

6. In a gage for fastener inserting machines an enga 'n member having relatively fixed hee e ge engaging portlons, a support therefor, means whereby said member may be moved relatively to its support,

and means whereby the support and member may be adjusted in and4 out relatively to the machine head.

In testimony whereof, I have signed my name to this specification, in the presence of two lsubscribing witnesses.

y FRANK F. ENO. Witnesses R. C. HoUCI-UN, WARREN G. OGDEN.

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