US1525465A - Method of and machine for randing heel blanks - Google Patents

Description

Feb. 0. 1925. 1,525,465

. D. PARKS METHOD OF AND MACHINE FOR RANDING HEEL BLANKS Filed June 4, 1923 2 Sheets-Sheet 1 5 Ina/anion: 1 f [Jenna's Pa Is. J 5 v E 1 I fi 22 5M Feb, 10-. 1925.

D. PARKS METHOD OF AND MACHINE FOR RANDING HEEL BLANKS Filed June 4, 1923 2 Sheets-Sheet 2 Patented Feb. 10, 1925.

entree STATES PATENT QFFICE.

DENNIS YAR-KS, 033 ST. LOUIS, MISSOURI.

METHOD OF AND MACHINE FOR. RANDING- HEEL BLANKS.

Application filed. June 4, 1923, Serial No. 643,204.

To all whom it may concern:

Be it known that I, DENNIS PARKS, a

citizen of the United States, residing in the city of St. Louis and State of Missouri,

have invented new and useful Improvements in Methods of and Machines for Banding Heel Blanks,

of which the followprovision of plylng, moulding the heel blank, and

a novel machine for use in apand securing the rand on for cutting off the ends of the rands flush with the breast of the heel, all in a single operation.

The invention also comprises a novel method for applying rands to heel blanks, which method may be practiced in the use of the machine of the invention.

According to this forming the subject-matter invention, the rand is secured to the heel blank by paste only, and is shaped to conform to the contour of the heel blank, securely thereon, and its ends cut pressed in position off flush with the breast of the heel, through the medium of a container for the heel blank of novel construction and a co-op erating plunger, also of novel construction as to its shape and function.

The preferred form of the container referred to has the general configuration of a die, such as used for cutting heel lifts; that is to say, it has the configuration of a heel, and its interior is smooth and of the size of the heel blanks being operated on.

differs, however,

i 1 Y irom an ordinary die in that its sides and rounded portions merely act as the wall of the container, and the upper edge of this cutting function.

wall is blunt and has no The front of the container, corresponding to the breast of the heel blank has its upper edge formed as front plate,

to the breast of the heel, or curved, and its tour corresponding heel blank with the This whether straight cutting edge has a conto the seat portion of the the rand attached. In

other words, the outer end portions of the cutter are upwardly mclmed at an angle correspondmg to surface of the rand blank the incline of the upper when applied to the heel Such a container permits a heel blank to be inserted therein and a pasted rand to be applied to the edge portion of the heel blank with its ends projecting over the edge of the cutter.

The plunger employed to co-operate with this combined container and cutter has its bottom or operative face shaped to conform to the contour of the heel blank with the rand attached, so that when it is forced downward upon the heel blank, it will have a molding effect upon the rand in forcing it down upon the heel. The shape of the face of the plunger thus conforms with the contour of the knife edge of the cutter, over which it projects and into contact with which it is designed to be moved, so that when forced to its lowermost position, it

will cut off the projecting ends of the rand flush with the breast of the heel blank.

The knife edge of the cutter is located to to be engaged by the plunger at the termination of the downward stroke of the latter, so that the face of the plunger will come in contact with the knife to cut off the extended portions of the rand after it has finished molding the rand and pushing the randed heel down into the container.

The container described forms the upper portion of a log holder, in which the breast plate with the cutting edge, described above, forms one of the walls, and, in operation, heel blanks with attached rands are successively forced through the container into the log holder in superimposed relation and in column formation, the log holder being of any desired length, but at least of a length sufficient to permit the quick drying paste, ordinarily used, to set before the heel blank with attached rand is forced out of the bottom end of the log holder.

In practice, it has not been found necessary to employ separating plates between the heel blanks in the log holder, as, owing to the provision of special means for applying paste to the rand, forming the subject-matter of a separate invention, no excess paste is used, and no paste is applied to the surface of the heel blank not covered by the rand, and hence there is no tendency for the blanks to adhere to each other. However, pressure members conforming to the shape of the randed surface, can be inserted between the heel blanks in any case in which it is found desirable,

The containerneed not have a continuous wall, but in cases where the operator would prefer to position the rand on the heel blank by manipulations of the lingers applied to the outer edge of the raiuhand the use of the thumbs to .press the rand in place applied to the surface of the rand on the interior of the container, the confines of the latter may be formed by uprights, say, three in number, positioned to the heel blank at the rear and at either side of the front or breast thereof.

The net results oi applying heel l-lanlts by the means and according to the method herein described are. that the-outer edge oi the rand is automatically positioned flush with the edge of the heel blank in the act of placing it in position, by engagement of the rand with the wall or confines oi? the container, as the heel blanks conform to the size and general outline oi? the container; the plunger causes all portions of the pasted surface ol the rand to be pressed firmly into enga ementwith the seat of the heel blank and likewise molds the same to the pr per seat contour, thus greatly facilitating the subsequent shaping oi such seat portion in the compress; the projecting ends of the rand are cut flush with the breast of the heel. whether the latter be straight or curved; and, finally, the length or" time re.- quired for the passage of each heel blank through the container and log holder while under the compressing action of superinposed heel blanks results in each-heel blanl: emerging from the holder with the rand :u'curately positioned thereon and firmly secured thereto.

)ronounced (1 K of securing roads on heel blanl-rs in the lullllOi described is "h I it avoids the necessitv tacking the now the common practice. and subsequently cutting oil that portion of the rand etitctding beyond the breast ot the ueel. These tacked rands often come loose while the heel is being; trimmed and this objection is also avoided in the use of the present invention. Furthermore, the separate molding oi the rands is dispensed with, and the heels randed cordinn to this invention are superior as re spects the qualities of lit and finish. or appearance. by reason of the fact that the rancs are accurately molded onto the heel blanks and mad to conform to the shape thereof by the cooperatingaction of the plunger and container.

'Fle method involved comprises pasting" the rand. applying the to a heel blank while the latter is in the container. forcing the rand into intimate contact with the surface of the heel blank and simultaneously n'mldina' the same and cutting: oil. the projecting ends.

The machine forming the subject matter or ds on the heel bl-nnh i. l t

of thisinventiou embodies theprinciple of operation of the lift cutting machine described and claimed in the patent to Dennis Parks, N0. 1,297,899 dated lilarch 18, 1919. in that the plunger is moved into the mold by hand or foot power, after which itautomatically interlocks with mechanism which causes the operation to be completed by the machine itself. The purpose of this arrangement is to reduce, so far as possible, the danger of accident, by prtwenting the hand 0 the operator from being caught between the phu'ie'eraiul the top of the mold.

'lheinven-tion is illustrated in the accompanying drawings, in which-- Figure l is a'view in "front elevation of a machine embodying my invention;

Figure 2 is a transverse sectional view thereof; 7

Figure 3 is an enlarged sectional plan view showing my improved container with a raudapplied to a heel-blank therein;

Figure "l is a View on anenla-rged scale showing the container in elevation and the plunger in section;

Figure 5 is a perspective illustrating a modified form of container; and

. Figure 6 is an enlarged transverse sec tional view of the container and plunger shown in Figure 2, but with theplunger shown in the actof forcing the projecting ends of a rand against the cutter.

The machine comprises a frame consist i .2 ct side members 1 connected by frame as I. the lower portion of the side frame rs being; provided witl legs, or I on which the machine rests. ed centrally of the frame ofthe a log-holder 4 of the usual construce upper end 01 which secured to ersidc of a table 5, on either side oi" re mounted bins 6 for receiving-heele cut with the log-holder l is a cor 2. T for receiving in succession the heel l) anks to be randed. This container is ed on the upper side of the table 5, and he latter rests upon the upper ends of adhs-ting screws 8 by. turning which, in one direction or the otheryt-he container 7 may be adgusted to'the proper height relative to he movement of a cu ttine' block, or

The plunger 9 which will laterbe' more I described. is mounted centrallyot a 'oss-head 10; which slides on ways ll. proon the inner sic oi the side frame 'ien ers 1.

Mounted '1 plunger.

Mounted on the Mounted above anlqs to he randed; Secured on the tablea dog 27,

the cross-head 10 to slide on the ways 11 is a frame-plate 17 which has mounted in its upper ends (Figure 2) a cross-shaft 18, which affords bearings for rollers 19, which are normally in engagement with the cams 16. Such engagement is maintained through the medium of springs 20, secured at their upper ends to the frame of the machine, and at their lower ends to the frame-plate 17. This plate, with the parts mounted thereon, as hereinafter described, is adapted to be continuously reciprocated by the co-action of cams 16 and springs 20 as the shaft 12 is rotated, the springs 20 maintaining the rollers 19 in contact with the cams 16 at all times, and yielding to allow the plate to be lowered under the action of said cams.

Pivot-ally mounted on the frame-plate 17 an actuating plate 21 (Figures 1 and 2), this plate having lugs 22 projecting from its rear side at the top, which extend through apertures 23 of the frame-plate 17. At either side at its upper end, the plate 21 is provided with ears 24;, over which engage coil springs 25, the lower ends of which are secured to the lower end of the frameplate 17.

Provided on the front of the cross-head 10 is a shouldered projection 26, and. when the cross-head 10 is lowered, the actuating plate 21 is adapted to have its lower edge moved into and out of engagement with the shoulder 26 to depress the plunger by the action. of the machine. For this purpose, there is pivotally mounted centrally of the plate 17 having an integral lever arm 28 extending through an opening 29 in the frame-plate 17. The lower end of dog 27 is normally drawn inward or toward the plate 17 by means of coil springs 27, secured at their lower ends to the frame-plate, and at their upper ends to projections 27 on opposite sides of said dog. Secured on the rear uide of the cross-head 10 is an upright arm 30, which is guided in a bearing 31, provided on the rear side of the frame-plate 17.

Pivotally mounted on the upright arm 30 a contact member 32, which rests againstt-he rear side of the arm 30 at one end, and at its inner end is adapted to engage, in the downward movement of arm 30, the lower end portion of the lever arm 28 to release dog 27 from engagement with a lug 33 on the front end of actuating plate 21. The plunger 9 and cross-head 10 are lowered through the medium of rods 34:, connected at their upper ends to brackets 35 on the lower end of the crosshead 10 and connected by treadles 36, one or the other of which may be used, according as it is more convenient for the operator.

Coil springs 37 are connected attheir lowerends, respectively, to the rods 34, and at their upper ends to the frame of the machine, which tend normally to raise the rods &

3d. and treadles 36, and thereby hold the cross-head 10 and plunger 9 in an elevated position.

In the operation of the machine as thus described, a heel-blank 38 is placed in the container '7 and a rand 39 applied thereto, after which the operator places his foot upon treadle 36 and lowers the plunger 9 and cross-head 10. In this movement, the contact member 32 engages lever arm 28 and throws dog 27 out of engagement with lug 33, the springs 25 thereupon throwing the lower end of plate 21 inward against the projection 26. As soon as the top of'this projection is moved by the lowering of the cross-head 10 below the bottom of platey21, the same snaps inward under the influence of springs 25, and as the frame-plate moves downward under the action of cam 16, the cross-head 10 and plunger 9 are forced downward to bring the bottom of the plunger into engagement with the rand.

As the lower edge of actuating plate 21 engages the shoulder 26, the plate will be forced upwardly a slight distance, due to the size of the openings 23, and the dog 27 again engages under the lug As soon as the cams turn to release the pressure on rollers 19, the springs 20 raise frame-plate 17 and, consequently, the actuating plate 21, and the resulting pull of the dog 27 on the lug 33 turns the bottom of actuating plate 21 out of engagement with the projection'26, and when the treadle 36 is released, said projection 26 can move upward without engaging the bottom of plate 21. In its upward movement, the contact member is simply turned on its 'p-ivot by engagement with the underside of the end of lever 28 so that it is permitted to clear said lever.

The machine described above and illustrated in the drawings represents the best type of machine known to me for practicing my invention. The subject matter of this application however, is more directly concerned with the construction of the container and the method of randing involved, and I wish it understood, therefore, that any other suitable machine embodying a recipro eating plunger could be used in practicing the invention.

I will now proceed to describe in detail the container and the co-operating plunger, and the method I employ in randing heel-blanks, referring more particularly to Figures 3, at

and 6.

heretofore referred to,

The container 7,

size and shape of the has preferably the heel-blank to be randed, and comprises a U-shaped wall 40, corresponding to the rounded portion and sides of the heel-blank, and a front wall 11, corresponding to the breast of the heel-blank, the upper edge of which is sharpened to provide a'cutter 42. As shown by Figure 4, the side portions 43 of this cutter are inclined upwardly to correspond with the incline, or bevel, of the upper surface of a rand 44 when applied to the wheel-blank. The plunger 9 has its bottom portion shaped to conform to the configuration of the upper surface of the heelblank with the rand applied, that is to say, its'side portions are upwardly inclined, as indicated at 45, to correspond with the incline, or taper, of the upper surface of the rand 44.

Secured on the front face of the plunger is a cutting block46 (Figures 1, 2 and 6) which is preferably of brass, or other relatively soft material, said cutting block having its lower edge portion shaped to conform to the configuration of the edge of the cutter 42, that is to say, its side portions are upwardly inclined, as indicated at 47. By turning the adjusting screws 8, the height of the container 7 may be so regulated that in the downward movement of the plunger 9, the lower edge of the cutting block 46 will engage the cutter 42 with suflicient firmness to completely sever any material placed between the said cutting block and cutter.

In order to prevent the accidental movement by the operator of the heel-blank placed in the container'to cause its breast edge to project over the cutter 42, I secure on the front wall, or cutting block, 41 of the container, a stop 48, the upper end of which projects above the cutter 42 flush with the inner side of the plate 41. This projecting portion is adapted to be received into a central recess 49, formed in the cutting block 46 as the latter descends. The cutting plate 41 could, if desired, be formed integral with the container, but in order to facilitate sharpening the same, when necessary, I prefer to construct it separately from the container and to secure said plate in front of the container by fastening it to the table 5, and to this end, I provide said cutting plate at its lower edge with a flange 50, and bolts or screws 51 passing through apertures in said flange serve to secure the plate to the table 5.

In operation, a heel-blank, such as indicated at 52, is placed in the container, its breast edge engaging the inner side of stop 48. A rand having its underside pasted is then inserted in the container and applied to the top of the heel-blank, the operator pressing the outer edge of the rand into engagement with the inner wall of the container, which thus serves to properly and accurately position the mud on the heelblank. The outer ends of the rand, indicated at 53, by dotted lines in Figure 1, project over the cutter 42. The operator then places his foot on one or the other of the treadles 36 and lowers the plunger 9 into engagement with the rand and the upper surface of the heel-blank. This,

as described above, moves the shoulder 26 (Figure 1) below the lower edge of the actuating plate 21, and the cams 16, in their rotation, operate to force the plunger downward in the container 7. In this movement, the rand 44 is pressed firmly into engagement with the surface of the heel-blank, and as the bottom of the plunger conforms in shape to the upper surface of the randed heel-blank, a molding action ensues, resultingnot only in pressing the rand uniformly into engagement with the surface of the heel-blank, but in shaping and smoothing the upper surface of the rand so that the finished heel-blank, as to this feature, resembles very much such a heel-blank after it has been subjected to the action of a compress.

The above operation occurs as the plunger descends in the container. As the plunger approachesthe limit of its downward movei ment, it engages the projecting ends 53 of the rand and forces the same into engagement with the cutter until such projecting ends are severed flush with the breast of the heel-blank by engagement of the cutting block with the cutter. This operation will be more readily understood from an inspeo tion of Figure 6.

In order to permit of the compressing action described before the projecting ends of the rand are severed, the cutting plate 41 is of much less height than the remaining portion of the container, so that the cut-ting edge 42 is well below the plane of the upper surface of an inserted heel-blank. In ractice, this distance is the thickness of the heel-blanks being randed. In other words, as each heel-blank is forced downward in the container and the projecting ends of the rand severed, the upper surface of the randed heel-blank will be flush with the cutting edge 42.

Any suitable means for applying paste to the heel rand may be employed. In practice, I use a paster of a special construction, indicated generally by the numeral 54, which is actuated from a belt 55, driven by a pulley 56 on shaft 12. This paster, however, is not involved in the present invention.

use

lit)

As the heel-blanks are randed in the mana ner described, they are, in succession, forced downward in a log-holder 57, which may be of any desired length.

While desirable, it is not absolutely necessary that the wall 40 of the container 7 should be continuous, and, in Figure 5, I have shown a container formed by posts, or uprights, 58, secured on the table 5 at the rear and outer edges of the opening of the log-holder 57, these posts serving equally well to position the heel-blank, and, as stated above, where the operator prefers, it enables him to finger the rand from the outer edges as well as to press it into position with his thumbs in the interior of the container.

1 blank with a pasted I claim:

1. In a machine for randing heel blanks, the combination of a container of a size to have inserted therein heel blanks to be randed and having a front wallor breast plate provided with a cutting edge, and a plunger movable to enter said container to force the heel blank with a. pasted rand applied thereto downward therein, and adapted to engage said cutting edge at the termination of its downward stroke.

2. In a machine for randing heel blanks, the combination of a container of the size and shape of the heel blanks to be randed and i into which the'heel blanks are inserted, and

having a front wall or breast plate provided with a cutting edge located below the top of the container, and a plunger movable to enter said container to force the heel blank with a pasted rand applied thereto downward therein, and adapted to engage said cutting edge at the termination of its downward stroke.

3. In a machine for randing heel blanks,

" the combination of a container of the size and shape of the heel blanks to be randed and into which the heel blanks are inserted, and having a front wall or breast plate conforming in shape to the breast of the heel blank and provided with a cutting edge, and a plunger movable to enter said container to force the heel blank with a pasted rand applied thereto downward therein, and adapted to engage said cutting edge at the termination of its downward stroke.

l. In a machine for randing heel blanks, the combination of a container of the size and shape of the heel blanks to be randed, and having a front wall or breast plate conforming in shape to the breast of the heel blank and provided with a cutting edge conforming in contour to that of the heel blank with the rand applied, and a plunger movable toenter said container to force the heel rand applied thereto downward therein, and adapted to engage said cutting edge at the termination of its downward stroke, the face of the plunger being shaped to conform to the contour of the surface of the heel-blank with the rand applied, and. to the cutting edge of the breast plate.

5. In a machine for randing heel blanks, the combination of a container for the heel blanks to be randed having a front wall or breast plate provided with a cutting edge, a stop secured to the front wall and projecting above said cutting edge flush with the inner side of the wall, a plunger movable to enter said container to force the heel blank with a pasted rand applied thereto downward therein, and having a cutting block adapted to engage said cutting edge at the termination of its downward stroke.

6. In a machine for randing heel blanks, the combination of a container for the heel blanks to be randed having a front wall or breast plate provided with a cutting edge, a stop secured to the front wall and projecting above said cutting edge flush with the inner side of the wall, a plunger movable to enter said container to force the heel blank with a pasted rand applied thereto downward therein, and having a cutting block adapted to engage said cutting edge at the termina tion of its downward stroke, and provided with a central recess for receiving the projecting portion of said stop.

7. The method of randing a heel blank which consists in applying a pasted rand to the seat of the heel blank, and in a continuous operation pressing the rand into firm engagement with the surface of the heel blank, molding the rand, and cutting off the projecting ends thereof flush with the breast of the heel blank.

8. The method of randing a heel blank which comprises inserting a heel blank in a mold, applying a pasted rand to the surface of the heel blank and conforming the same to the contour of said mold, and in a continuous operation pressing firm engagement with the surface of the heel blank, molding the rand, and cutting off the roj ecting ends thereof flush with the breast of the heel blank.

In testimony whereof, I have hereunto set my hand.

DENNIS PARKS.

the rand into

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