US2063149A - Machine for coating the peripheral portions of soles - Google Patents

Description

J. H..BR OWN 2,063,149

MACHINE FOR COATING THE PERIPHERAL PORTIONS OF SOLES Dec. 8, 1936.

2 Sheets-Sheet 1 Filed May 26, 1953 Dec. 8, 1936. J. H. BROWN 2,063,149

MACHINE FOR COAT ING THE PERIPHERAL PORTIONS OF SOLES Filed May 26, 1935 2 Sheets-Sheet 2 //VVE/V TUP T0222 2A Patented Dec. 8, 1936 UNITED STATES PATENT OFFICE MACHINE FOR COATING THE PERIPHERAL PORTIONS OF SOLES Application May 26, 1933, Serial No. 673,055 In Great Britain June 9, 1932 7 Claims.

This invention relates to the application of coating material and is herein illustrated as embodied in a machine for coating the pripheral portions of soles such as the edges thereof and the 5 adjacent marginal areas, the machine being intended for use primarily with unattached soles.

It is sometimes found desirable to coact, as with ink, the edges and adjacent margins of shoe soles before they are incorporated in shoes as, for example, in the manufacture of McKay shoes. One object of the present invention is to provide an improved machine suficiently flexible in its arrangement so that it can be employed for coating either the edge surfaces of the soles or the adjacent margins of the soles.

An important feature of the invention permits the application of coating material both to the peripheral edge of the sole and to a narrow adjacent marginal portion of the sole. When thus arranged, the illustrated machine has an applying roll of flexible material and provided with a projecting flange which may be brought into fluid-transferring relation to a lateral surface upon a supplying roll, to effect the accumulation 25 of coating material in the corner between the flange and the peripheral surface of the applying roll for application to the work, such as the marginal surface of a sole. The edge of a sole is pressed against the peripheral surface and locat- 30 ed in said corner thereby to coat also an adjacent marginal portion of the sole.

In the drawings,

Fig. 1 is an angular view showing the operating parts of a coating machine embodying the invention;

Figs. 2 and 3 are front elevations showing the applying roll and different shapes of cooperating feed rolls for supporting the margin of a sole in contact with the periphery of the applying roll;

Fig. 4 is a similar view showing an arrangement for coating the edge of a sole;

Fig. 5 illustrates the applying roll in cooperation with a feed roll which may be shifted to occupy various positions with respect to the applying roll;

Fig. 6 is a diagrammatic view of the ends of the various rolls together with a cooperating guide and illustrating an arrangement especially adapted for coating the edges of soles;

Fig. 7 is a front elevation of the arrangement shown in Fig. 6, omitting some of the supplying rolls; and

Fig. 8 is a front elevation showing an arrangement by means of which both the edge of the sole and a narrow adjacent marginal area may be coated simultaneously.

The illustrated machine may have the general construction of a machine for applying coating material, such as cement, to shoe parts, which ma- 5 chine is shown in Letters Patent of the United States No. 1,851,162, granted March 29, 1932, upon the application of John W. Cosgrove. In common with that machine there is provided herein a frame I 0' supporting a tray-like receptacle I2 in which coating liquid is kept at a constant level by means of an inverted supply bottle it. The liquid in the receptacle is taken up by a pick-up roll I 6 from which it is removed by means of a transfer roll l8 and given over to a delivering roll 20 which, in all the forms of the invention except that shown in Fig. 8, is also used for applying the coating material directly to the work. Cooperating with this applying roll 20 is a feed roll 22 or 52, the latter being shown in Fig. l. 20 The rolls l6, l8 and 20 are mounted upon shafts journaled in the frame I ll upon centers fixed with respect to one another, and the rolls are positively driven, all in the same direction as indicated by the arrows applied to the rolls, at such speeds that the adjacent peripheries move at substantially equal linear velocities. The separation between these rolls, greatly exaggerated in the drawings, is normally only a few thousandths of an inch. The quantity of coating material taken up by the pick up roll is controlled by means of a driven doctor roll 24, the peripheral speed of which is slower than that of the roll [6 and the position of which with respect to the pick-up roll is controlled by a wing nut 26, as in the Cosgrove patent. Also, as in that patent, the feed roll is mounted in a pivoted bracket 21 which usually will be urged by a spring (not shown) to cause the feed roll to approach the applying roll 20 to a position determined by a stop bolt 28, the position of which may be adjusted by means of a hand wheel 30. Also in the Cosgrove patent, the efiect of driving the rolls in the same direction and with the same peripheral speeds is to cause the applying or delivering roll 20 to be supplied continuously with an even coating of ink which does not, however, tend to accumulate unduly when no work is being treated. Surplus ink is taken back to the receptacle by means of the rolls l6 and it. A gage 32 is adjustably mounted upon the feed-roll bracket 21. There is also provided a forked member 34 (Fig. 1) which may be seen more clearly from Figs. 4 and 8. The forked end of this member is adjustably received in a groove in a shaft 48 for the feed roll and is therefore arra'nged to differently position the feed roll with respect to the applying roll 20, as will be later described.

The actual work-engaging portion 40 of the applying roll 28 is formed as a readily removable disk clamped between smaller disks. This removability permits the portion 40 to be changed as required to coat sole margins with bands of different widths. Thus, the portion 40 constitutes a projecting annulus having a peripheral surface and a lateral surface. For'all general purposes four roll parts 45 of widths varying from threeeighths to three-sixteenths of an inch will suffice. The part 45 indicated in the drawings represents a width of one-quarter inch, while a single transferring roll it of say one-half inch in width may be used to transfer ink to any of such widths of applying roll, being in each case wider than the annulus 49. The gage 32 will ordinarily be adjusted in a direction substantially parallel with the axis of the applying roll 20 to bring its end guiding surface immediately in line with the inner face of the applying roll part 40. When a piece of work is to be inserted between the feed roll 22 or 52 and the applying roll, the bracket 21 may be lowered against the tension of the spring by means of a treadle or the equivalent (not shown). If the work to be coated has a marginal portion of the same thickness as the mid portion or" a sole such as in the case of comparatively thin soles S *used in slippers, the feed roll 22 may take the form shown in Fig. 2 in which the frusto-conical work-supporting portion 42 is comparatively wide and only slightly tapered. Preferably the frusto-conioal portion 42 is secured in contact with the end of a thin, disk-like portion 44 which is fixed to the shaft 48, and the roll portion 42 is held in position thereon by means of a screw 46 entering a tapped hole in the shaft which is situated wholly within the end face of the disk 44. When the roll section 42 is removed, the end face of the disk 44 is smooth and unobstructed. If it is desired to coat soles which have beveled margins, then the'section 42 may be removed and replaced by a narrow section 50 (Fig. 3) of sharper bevel. With a roll such as that shown in Fig. 3, the operator may, when necessary, tilt a sole S having a beveled margin so that the inclined marginal surface can be inked equally as well as another portion of the margin of the sole which is differently beveled or is unbeveled. When the peripheral edge of a sole is to be inked, the arrangement shown in Fig. 4 may be employed. There the frusto-conical portion of the feed roll has been removed and the disk-like portion 44 is employed not only to guide the sole S as its periphery is presented to the applying roll 40, but also to assist in feeding the sole past the applying roll. When this operation is to be performed, the shaft 48 will preferably be displaced axially, and held there by the forked member 34, to bring the disk 44 slightly under the applying portion 40. The work gage in this arrangement will have been adjusted to a retracted position. The rotation of the disk 44 will be found to aid the operator in turning the sole as its toe and heel portions are being inked.

Instead of substituting different feed roll portions, as suggested in Figs. 2 and 3, it may be found desirable to employ a feed roll 52 (Fig. 5) which has a cylindrical portion and a frustoconical portion and is held upon the shaft 48 by meansof a screw 54 the head of which lies within a counterbore in the end of the roll so as to leave the end surface 56 free of any projection. The cylindrical portion has a line of contact with the Work which is parallel to the line of contact of the applying roll portion 40 therewith, while the line of contact of the frusto-conical portion with the work lies at an acute angle with the similar line on the applying roll. This feed roll 52 will be positioned by adjusting the shaft 48 axially to bring the roll into the position shown in full lines when the beveled margin of a sole is to be inked and held there by a member 34, as in Fig. 1. On the other hand, it may be adjusted to position a (shown in dotted lines) when the margin of a sole of uniform thickness is to be coated. If it is desired to employ this form of roll for edge inking, it will be moved into position b (shown in dash lines) where the end face of the roll will serve for supporting and guiding the sole in exactly the same manner as is illustrated in Fig. 4. Preferably in this sort of work the bracket 21 will be raised so that the edge of the face 56 is brought closer to the under side of the applying portion 40, thereby to give guiding support to the side face of the sole close to its edge as the edge is being inked.

It is required sometimes to ink the edges of soles that are not exactly perpendicular to the side surfaces of the soles. Such edges often are found upon soles which have been merely cut out by a press knife and have not been subjected to a rounding operation. More reliable inking of such edges can be obtained by employing an inking roll 58 of the form shown in Figs. 6 and 7, in which a mid portion 60 of rubber or suitable yielding material is housed between two metallic disks 62. When such an inking roll is used, it is convenient to guide the work against a rigid edge gage 64 which has an end guiding portion at right angles to a body portion which is held upon the machine frame by a screw passed through an adjusting slot 66 so as to be adjustable in a direc-. tion parallel to the inking roll shaft.

The upper edge of the gage 54 is preferably concavely curved, as shown in Fig. 6, so as closely to hug without contacting with the lower part of the periphery of the inking roll 58. A guiding surface for the sole edge close to the point of application of the ink is thus obtained. Further, when a gage such as 64 is employed, the supporting roll shaft 48 used for sole margin inking will be retracted behind the gage, as indicated in Fig. '7. In inking sole edges with the roll and gage of Figs. 6 and 7, a sole S will be held flat against the gage 64 and traversed by the operator in the same manner as with the disk 44 above described with reference to Fig. 4.

In Figv 8 there is shown an alternative arrangement which may be employed for sole edge inking. With this arrangement, however, a small width, about one sixteenth of an inch, of the sole margin will be inked simultaneously with the sole edge. In the arrangement of Fig. 8 the application of ink is performed by a roll H mounted on the shaft 48 which, in the constructions of Figs. 1 to 3, carries a work-supporting or feed roll 52 or 22. As above indicated, the bracket 21 which carries the shaft 48 is vertically adjustable by the hand wheel 30 acting on the stop bolt 28, thus permitting an exact adjustment of the separation between the roll H and the roll portion 40.

The applying roll II in this instance comprises a yielding portion 12 which, owing to the ability for Vertical adjustment of the shaft 48, may be of more yielding material than is possible with the portion 60 of the applying roll 58 of Fig. 7. 75

The portion 12 is clamped between an outer disk 14 and an inner disk 76 in the same way as the work engaging annular portion or disk 40 is clamped between disks of the applying roll 20 of Figs. 2 to 5. In this case however the inner disk 16 is of slightly larger diameter than the portion 72. Ink is delivered to this roll by the roll portion 40, which now serves as a delivery roll portion, fed by rolls l6 and I8 as is the applying roll portion 40 of Figs. 1 to 4. That portion of the disk 16 which extends beyond the yielding portion is preferably relieved or backed off slightly so that its surface is not exactly parallel to the lateral surface of the roll portion 40. This allows a small quantity of ink to collect in the angle between the parts 40 and 16 as the rolls rotate and thus to be conveyed by the part 16 to the extreme margin of a sole S which is traversed by the operator with its edge against the under side of the part 72. In order that the gap between the parts 40 and 16 may be adjusted accurately to suit inks of differing viscosities, the shaft 48 in this case is held for axial adjustment on the bracket 27 by the forked member 34 which is mounted by a screw 88 upon the bracket 21. The screw 80 conveniently also holds a work gage 18 which is similar to the gage 64 above described and acts to aid the operator in positioning a sole with its edge and margin correctly to contact with the part 12 and the lateral face of the part 16.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a coating machine, a receptacle, a transfer roll receiving coating material therefrom, means for controlling the quantity of material thereon, a fluid-delivering roll having a rigid projecting annulus provided with a peripheral surface and an adjacent lateral surface, said transfer roll cooperating with said annulus to deliver coating material thereto, and an applying roll having a peripheral surface receiving coating material from the periphery of said projecting annulus and having a. projecting flange the lateral surface of which cooperates with the lateral surface of said annulus to receive coating material therefrom.

2. In a coating machine, a fluid-delivering roll having a peripheral surface and a lateral surface, means for supplying coating material to said delivering roll, and an applying roll having a peripheral surface receiving coating material from the periphery of said delivering roll and having a projecting flange the lateral surface of which cooperates with the lateral surface of said delivering roll to receive coating material therefrom, said flange being relieved to permit the accumulation of coating material between the lateral surface of the delivering roll and the flange of the applying roll for application by the latter to the margin of the work.

3. In a coating machine, a fluid-delivering roll having a peripheral surface and a lateral surface, means for supplying coating material to said delivering roll, an applying roll having a peripheral surface receiving coating material from the periphery of said delivering roll and having a projecting flange the lateral surface of which operates with the lateral surface of said delivering roll to receive coating material therefrom, and means for adjusting said applying roll axially thereby to vary the relation of the lateral surfaces of the supplying roll and the applying roll.

4. In a coating machine, a fluid-delivering roll having a peripheral surface and a lateral surface, means for supplying coating material to said delivering roll, an applying roll having a peripheral surface receiving coating material from the periphery of said delivering roll and having a projecting flange the lateral surface of which cooperates with the lateral surface of said delivering roll to receive coating material therefrom, means for supporting a piece of work so that the edge surface may be coated by the periphery of the applying roll and the marginal surface thereof coated by said flange, and means for varying the position of the applying roll both axially and in a direction toward and away from the supplying roll thereby to control the passage of coating material between said rolls.

5. In a coating machine, a fluid-delivering roll having a rigid projecting annulus providing a.

peripheral surface and an adjacent lateral surface, a. roll wider than said annulus for supplying coating material to the annulus of said delivering roll, and an applying roll having a yielding peripheral surface receiving coating material from the periphery of said delivering roll and having a rigid projecting flange the lateral surface of which cooperates with the lateral surface of said annulus to receive coating material therefrom whereby a piece of work may be presented to the applying roll so that the edge surface may be coated by the periphery thereof and the marginal surface coated by said flange.

6. In a coating machine, a fluid-delivering roll having a peripheral surface and a lateral surface, means for supplying coating material to said delivering roll, and an applying roll having a yielding peripheral surface receiving coating material from the periphery of said delivering roll and having a projecting rigid flange the lateral surface of which cooperates with the lateral surface of said delivering roll to receive coating material therefrom, said flange being relieved to permit the accumulation of coating material for application by said flange to a surface substan tially normal to that coated by the yielding peripheral surface.

'7. In a coating machine, a driven coating delivering roll, a coating transferring roll, a coating pick-up roll and a doctor roll all of which rolls are driven in the same direction, said first three rools being rotatable about fixed centers,

JOHN HENRY BROWN.

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