US1828855A - Shoe surface coating - Google Patents

Description

SHOE SURFACE COATING @Mutual 5 Oct. 27, 1931.

l S. W. BOURN SHOE SURFACE GOATING Filed July 5, 1924 2 SheeiS-Shee(l 2 Patented -ct. 2i, 1931 UNITED STATES PATENT OFFICE STEPHEN W. BOUBN, OF BRISTOL, RHODE ISLAND, ASSIGNOB TO UNITED SHOE ML- CHINERY CORPORATION, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY suon amaca coA'rING Application nea my s, 1924. serial No. raam.

This invention relates to coating boots and shoes and is' herein disclosed in a machine for and a novel method of applying a iluid such as cement to the foxing areas and bot- U toms of shoes.

During the manufacture of a canvas tennis shoe and preparatory to the attachment of the rubber sole, a strlp of gum rubber is applied to the lower margin of the periphery of the shoe to which the edge of the sole is later vulcanized. In order to secure this strip of gum rubber, known as the foxing, to the canvas top or upper of the tennis shoe, a stripe of cement 1s applied to the lowermost l5 margin of the sides of the shoe adjacent `to the ybottom of the shoe in the section known as the foxing area. Although various machines have been suggested for this operation of foxing cementing, rior to m invention 3 it has been usually er ormed by and. For

high grade work, owever, a stripe of uniform width must be applied so that in the finished shoe the cement will come exactly to the upper edge of the foxing strip in order 5 to secure it rml to theshoe, andwill not project above this strip. If it so happens that the stripe of cement is too wide, it will show above the foxing stri in the completed 'shoe thereby producing a lemish which can only be removed with difficulty and4 which usually results in makingthe shoe a second. Having this in mind, an object of the invention is to render it easier for the operator to apply a coating to the fo area of a shoe quickly and accurately so t at the line of demarcation between the foxing area and the uncoated portion of the u per of the shoe is sharpl defined and exact y located. To this end 'have provided a novel method of coating the foxin area of a shoe in accordance with which t e u r'of theshoe ab'ove the foxing area is shie ed from the application of cement and the upper edge of the stripe of cement is properly positioned. As

herein exemplifed,-a shoe and an a rtured shielding member arranged to surround the shoe are brought into cooperative relation,

with the margin of the o emng closel related to the shoe and arrange exactly atedge of the fox-ing area and cementis applled e upper to theqexposed foxing area. Excessive care or skill in applying the cement is not required and the whole foxinO area may be quickly and accurately coate Another object of the invention is to pro- Vide an improved machine for coating the shoe and constructed and arranged to surround the shoe with the edge of the aperture located at the upper edge of the foxing area.

As herein illustrated the edge of the apertured shielding member is curved heightwise of the shoe so that it coincides with the upper edge of the foxing area and exposes an area of substantially uniform width.

Still another feature of the invention includes means for turning a shoe to present portions of the foxing area successively to a cement-applying device which is movably mounted, thereby at least in part to compensate for the irregular outline of the shoe, and having, interposed between the applying device and the shoe, shielding means constructed and arranged to coact with the shoe atthe upper edge of the foxing area whereby the stripe of cement applied to the shoe will be substantially uniform in width and have its upper edge at a uniform distance from the bottom of the shoe.

In accordance with features of the invention, the illustrated machine is arranged to rotate. the shoe about a xed axis anda fluid applying deviceis mounted for reciprocation toward and away from the axis of rotation, means being provided to cause the applying device to follow the outline of the work as it is rotated. As illustrated, the construction and arrangement are such that gravity tends to hold the applying device in contact with Y to the shoe support moves the fluid applying device positively to and fro'to keep it in the desired 'relation to the margin of the rotating work.

Present shoe factory practice usually requires the application of a series of coatings so that, in spite of the porosity of the work, a sufficient quantity of the adhesive will remain upon the surface of the work securely to bind the foxing strip to the canvas of the upper. In order, therefore, that the illustrated machine may be operated to apply more than one coating to the shoe and in accordance with features of the invention, means are rovided for rotating the shoe a predetermine number of revolutions and for then stopping the machine. Still other means Aare provided for automatically shutting oz' the supply fluid when the work has been rotated a given number of revolutions.

These and other features of the invention are set forth in the followingspecification and illustrated in the accompanying drawings, in which,- y

Figure 1 is a sectional side elevation of my improved machine illu-strating means for rotating the work and the means for applying liquidthereto. l

Figure 2 is a front view showing a portion of a machine with the work mounted on the rotatable plate and showingthe liquid-apl plying means as mounted to reciprocate durthe supplying action.

in Figure 3 is a horizontal section through the ving provided for rotating the work about a relatively fixed axis and cooperating means provided for moving the duid-applying device towards and from the axial center about which the work rotates for the purpose of @applying the fluid to the desired portion of which is journaled on the frame 10 and i-s rotated from a drive pulley 14 (Fig. 6) by the work, which may be the foxing portion, or the adjacent margin of the bottom of the shoe, or any other similar portion thereof.

With reference to the drawings, the machine has a` frame 10 in which is mounted a rotatable face plate 11 on which the work such as a lasted tennis shoe 12 is mounted. This face plate is itself mounted on a shaft 13 means of meshing gears 15, 16, the latter of which is loosely mounted on a vertical shaft` 17. A sliding clutch member 18 is splined o this shaft 17 to cooperate with a clutch memshown as adapted to apply liquid to the bottom of the shoe, I have mounted a verticallydisposed slide plate 24 to slide in Ways provided by guides 25 on the main, upright frame, which plate isprovided with a bracket 26l in which a tube 27 is rigidly mounted to support the brushes21 and 23. These brushes are supplied with liquid from a supply tank 28 through a flexible tube 29 joined to the tube 27.

This slide plate 24 is provided with a roller 30 which engages the groovel 20 in the face plate 11, whereby the rotation of this face plate causes the slide plate 24 to reciprocate towards and from the axis on which the work rotates.

A portion of the weight of the slide plate and the tube is supported by a spring 31 which is-coiled about a guide rod 32, the upper end of the spring engaging a boss 33 on the slide plate, while the lower endy engages a boss 34 on the frame, the guide rod 32 extending through this latter boss.

A blower 34 is provided to generate air pressure in the liquid supply tank for the purpose of forcing and feeding this liquid to the applying brushes. This blower 34 being arranged to force air up through pipe 35 into the chamber above the liquid.

Inasmuch as it may be desired to apply one or more successive coatings to the peripheral margin of the shoe, it is found convenient to arrange the mechanism so that the shoe may be rotated for any desired number of turns and then stopped without requiring the operator to keep track of the number of revolutions made. To this end automatic mechanisfn is provided for regulating the number of turns that the work shall make| during application of the liquid thereto and for then causing the machine to stop. I have, accordingly, connected an operating handle 36 to the clutch 18 and to 'this operating handle is connected a trip rod 37 which extends up through the frame table 38. The rod 37 is provided with a latch lip 39, see Figure 4, which engages the upper edge of the table thereby serving to hold the clutch in engagement, and in order to throw this latch 39 out of engagement with the table, I have provided an arm 40 mounted' on a short shaft 41,

ber on the gear 16. By a connection through les ' ion gear 44, idler gear 45, (Fig. 5), large gear` vwhich: shaft is rotated from the shaft 17 through mitre gears 42, short shaft 43, pin- 46, shaft 47 and mitre gears 48. The ratio of these gears 44 land 46 determines the numproducethe best work, the machine is pro.-A

vided with automatic mechanism for stopping the flow of fluid at the end of each operation in timed relation to the stopping of the shoe. The time for shutting off the iuid may or may not coincide with the stopping of the shoe. Conse uentl in order to arrest the flow of the' uid rom the tank 28 to vthe brushes 21 and 23,- I have mounted a valve on the tube 51 and on thisvalve I have mountedan -arm 52 which engages a cam plate 53 on the shaft 41 so that as said shaft rotates, a notch 54 in the plate 53 is presented beneath the valve lever 52 which permits this lever to drop under tension of spring 55 to close the valve and shut 0E the supply of fluid to the brush.

In some instances it is found of advantage to be able to stop the feed of the liquid. after a single application thereof to the work and at the same time to permit the work to continue its rotation to facilitate drying one coat of the liquid before another is applied. To accomplish this result in a simple way, I have hinged at the outer endof arm 40 whereby 1t may be tipped up by the operator and swung back upon itself so that when rotatedit will not engage and-knock off the latch 39 to stopthe machine, only accomplishing this result when swung down into extended position by the operator, 'as shown in the drawings.

Having now described the general arran ement of the machine it remains to descri e that improved feature of my invention by means of which the portion of the upper lying above the foxing' area is proteclted and the line of demarcation between the stripe of cement and the uncoated portion of the shoe upper is accurately controlled. In the arrangement herein illusvtrated a portion of the lasted shoe which is not to be coated is protected by means of an apertured shield 56 entirely surrounding the shoe and having the edges of its opening brought into close relation to the shoe at the upper edge of the foxing area. The edge of the o ening in the shield 56 is, as will be seen rom the drawings, curved hei htwise Vof the shoe so as to coincide accurate y with theupper edge of the foxing area to expose an area of substantiallyl uniform width.

This guard or shield 56 may be supported in any suitable way, the guard herein illustratedbeing provided with a iiange 57 secured to the face plate 11 and extending down to the upper edge of the foxing portion.

-Since the shield and the shoe are both mounted upon the same supporting plate l1, their Vrelative position is accurately determmed for any size and style of shoe and it 1s only necessary for the operator to move a shoe through the apertured shielding member to bring it into cooperative engagement with the supporting plate ll in order to be sure that the predetermined portion at the lower part of the shoe is exposed'beyond the edge of the shielding device. understood that a succession of shoes of the same slze, and shape may be mounted upon the machine, one after another., and posi- 'tioned within the guard.' Because of the shape ofthe guard and of the shoe, it will not be necessary to remove the guard each time the shoe is changed, but only when the s ize or type of shoe to be inserted is considerably different from those previously treated.

In practising my novel method by the aid lof the illustrated machine, the operator will take a lasted ,shoe l2 of a size for which the machine 1s fitted at the moment, and pass it through lthe opening of the shielding device 56 and mount it upon the rotatable work It will be supporting plate 11. By reason of the design of the machine, this will locate the shoe exactly with respect to the shielding member and the operator will proceed'to start the machine by manipulation of the hand lever 36. A protected shoe will then be rotated past the cement applying v,device which will coat both the foxing area and thebottom of the shoe, said applying device being moved to atnd tle cause it to rest in easy engagemen w1 t e peri heral ortion of the shoe. After the shoe Ihas malde the desired number of revolutions, the automatic mechanism heretofore described will shut .off

the cement and stop the rotation of the shoe support elther synchronously or at the desirlel interval.

y improved device for a l in li uid to shoes-and other articles, isvijyysirpleqand practical in construction and effective in its operation and by its use liquid may be ap- `plied to work having irregular outlines.

I claim: 1'. In a shoe surface coating machine, means for rotatably supporting a shoe, means for rotating said supporting means, a spreader for applying fluid to the shoe, and means for reciprocating said spreader towards and les from the axis of rotation of the shoe as the I latter rotates to keep the spreader in contact with the shoe.

2. In a` shoe surface coating machine,

means for supporting a shoe for rotation aboutan axis, a liuid spreader mounted'- for to-and-fro movement, and means including a pattern plate constructed and arranged to move said spreader to follow the outline of the shoe as it rotates.

3.In a shoe ,surface coating machine, means for rotating a shoe about a relatively fixed axis, a fluid spreader, and means for moving said spreader to cause it to move in and out in accordance with the shape of a shoe so as to follow the outline of the shoe as it rotates.

4. In a shoe surface coating machine, means for rotating a shoe about a relatively fixed axis, a movably mounted fluid spreader, and cam means for controlling the movement of said spreader. in timed relation to movement of the shoe so that the spreader will follow the outline of the shoe as rotated.

5. In a shoe surface coating machine, means for rotating a shoe, a fluid spreader, means for causing said spreader to moveand follow the outline of the shoe as it rotates, and a guard member rotating with said shoe for restricting the effective action of the spreader.

6. In a shoe surface coating machine, means for rotating a shoe, a fluid applying device slidably supported above the shoe and resting on the shoe, and a cam for reciprocating said device to and fro to cause it to follow the outline of the shoe as the latter is rotated.

7. In a shoe surface coating machine, means for rotating a shoe, a. fluid applying device, slidably mounted above the shoe, resilient lmeans tending tobalance the weight of'said device, and a cam for positively moving said device to and fro to cause it to move towards-and from the axis of rotation of the shoe and to follow the outline ofthe shoe while applying the fluid.

8. In a shoe surface coating machine, means for rotating a shoe, a. fluid applying device having a shut-ofi", a .camv for moving said applying device towards and from the axis of rotation of the shoe to vfollow the outline of the shoe while applying the fluid, and'sto mechanism responsive to the rotation of the shoe constructed and arranged to act upon the shoe rotating means and the fluid shutoff thereby to arrest the action of the machine and the'low of the fluid after apredetermined number of revolutions of the shoe. 9. In a shoe surface coating machine, a work supporting plate/,means for rotatin said plate and work, a cam groove in sai plate following the general outline of the shoe to be treated,and a slide plate carrying fluidapplying means and caused to reciprocate by engagement with said cam groove to cause the applying means to follow the outline of the shoe.

10. Ina shoe surface coating machine, a work supporting plate, means-for lrotating Lena-s55 l said plate and work,l a cam ove' in said platefollowing the eneral out ine ofthe shce to be treated, as 1de plate carrying 'fluid applying means and caused to reciprocate by engagement with said cam groove to cause the applying means to follow the outline of the shoe, a supply tank, and a flexible tube connecting sald tank through which fluid is sup lied to said ap lying means.

11. n a shoe sur ace coatin machine, means for rotating a shoe, a mova ly mounted spreader member positioned to apply- Iliquid to the bottom of the shoe, means moving said spreader member to-and from the axis of the shoe including a cam constructed and arranged to control the movement of the said means to cause the spreader member to follow the outline of the shoe.

12. In a shoe surface coating machine,

means for rotating a. shoe, a spreader member for applying -li uid to the surface of the shoe, and a guar member rotating with said shoe and protectin that portion of the surface not to be treated.

1.3. In a shoe surface coating machine, a. frame, a work support, a fluid spreader, means for moving both the work andthe spreader relatively to the frame and to each other in applying the fluid to the Work, and stopping mechanisml for arresting the flow of the fluid to the spreader after a predeterfor mined number of revolutions of the work.

i 14. The method of coating the lfoxing area of a shoe which consists in lrelatively positioning a shoe and a shielding device in a close relation toy cover up the whole upper part of the shoe so that only a predetermined annular portion of the lower part ofthe shoe, known as the foxing area, is exposed, holding this vrelation constant and applying cement to at least the greater portion of the exposed foxing area.

15. The method of coating the foxing area of a shoe which consists in movin a shoe into position with respect lto a shie ding device surrounding the shoe thereby to expose the foxing area while protecting all of that part p of the shoe upper above the foxing area from the application of cement, and applying cement to at least the greater portion of the exposed foxingarea.

its

vns

"16. rlfhe method of applying cement tothe foxing area of a shoe which consists in moving the lshoe through an apertured shielding member to exposethe foxing area While pro'- tecting the part of the shoe upper above the foxing area from the. application of cement, and causing a relative movement of translation between the shielded shoe and the cement applying means while applying cement to at least the greaterportion of the exposed foxing area. 1 f

17. That method of applying cement to the foxing areaofy a shoe, the upper portion of the shielded shoe to coat the line of the bottom of the shoe.

oplying a stripe of cement to the foxing area assassin? which is surrounded by a shield to prevent the application of cement thereto, which is characterized by causing arelative movement of translation between an applying device and the shielded shoe to present successive ortions of at least the greater portion of the ox'- ing area. to the applying device.

18.- That method of applyingcement tothe foxing area of a shoe, the whole upper portion of which is shielded to prevent the application of cement thereto which is characterized'by causing a relative movement of translation between an applyingl device and w ole vertical extent of each successive portion of the foxing area at any part ofthe shoe which isl brought into cooperative relation with the applying device, and moving the shielding I means with the shoe to maintain substantially ao constant the relation between the two.

19. That method of applying cement to the foxing area of a shoe which consist-s in applying to the shoe a shielding device to surround and protect the portion of the upper lying above the foxing area, positioning said shielded sh'oe in operative relation to a cement applying device and causing relative movement of the shoe with its shielding device and the applying device to coat the whole of the unshielded foxing area.

20. In a foxing-cementer, cement applying means, and a shield having a shoe-receivingt opening correspondingrv in shape substantially to the peripheral outline of the bottom ofa 35" shoe and constructed and arranged to protect the upper of a shoe above the foxing area from the application of cement while exposing the foxing area of the shoe to the action of the cement applying means.

21. In a foxing-cementer, means for applying a stripe of cement to the foxing area of a shoe, and means for controlling the line of demarcation between the stripe of cement and lthe portion of the shoe upper above the foxing area, said last-named means comprising a shield having an opening corresponding in outline substantially to the peripheral out- 22. In a foxing-cementer', means for apofva shoe, a shield having a shoe-receiving opening corresponding in outline to the shape of the bottom of the shoe, and means for determining the position of a shoe relatively to the opening in said shield to locate portions of theupper of the shoe respectively on opposite sides of the shield, said positioning means and said shield being constructed and ar- "ranged to determine the position vupon the shoe of the upper edge of .the stripe of cement and to protect the portion of the upper above the foxing area from the application of cement.

23. In afoxing-cementer, a shield having an opening corresponding in shape vsubstan'-,

an opening corresponding in shape substan-` tially to the peripheral outline ofthe bottom of a shoe and constructed and arranged to be brought into juxtaposition to theupper of a shoe, upon relativepositioning movement of the shield and the shoe, to define vthe upper edgeV of the foxing area of the shoe, said vshield being curved heightwise ofthe shoe' thereby to expose a foxing area' of substantially uniform Width, and means for applying a stripe of cement to said oxing area as so defined.

25. In afoxing cementing machine, a cement applying device, a movable shoe'sup-l port, shoe-surrounding means carried thereby for shielding the Whole upper portion of Va shoe to protect said portion from the application of cement, and means -for causing a relative movement of translation between saidcement applying device and the shoe support a'nd shielding` means to present successive portions of the foxing area t'o the applying device;

26. In a foxing cementing machine, a shoe support, means for applying cement to the foxing area of ashoe on said support. an imperforate shielding member surrounding the'shoe to protect that portion of the upper of. the shoe which lies above the forcing area, and means for supporting said shielding member in a predetermined relation to the shoe support constructed and arranged to cause the edgeof the shielding member to come automatically into the desired relation to the edge of the foxing area as the shoe is' applied to the shoe support.

27. In a foxing cementing machine, cement applying means, means for supporting a lasted shoe, means for applying-cement to the foxing' area 'of the shoe, and an imperiorate shielding member mounted in fixed re-l iro iat

ist

support constructed and arranged to transto maintain the upper edge of the foxing fer a lasted shoe from vone position to anarea at substantial a uniform distance other past said applying device in order to from/the bottom of t e shoe.

' eect the coating of the whole of the foxng f area of the shoe with cement, and an imperforate shielding member mounted on said movable support for movement with .the shoe, said shielding member being constructed and arranged to surround the shoe with an edge lying immediately adjacent to the upper edge of the-foxing area whereby the upper of the shoe-above the foxing,r area isv protected from the application of cement.

29. In a foxing cementing machine, a

ed and arranged to support a lasted shoe and movable to present various portions of the foxing area of the shoe to the cement l ablv mounted' cement applvina` device. means" ao, for rotating said support :and simultaneouslv moving said 'applvipg device to maintain it in cooperative relation with'the Foxing area of the moving shoe. and an imperforate shielding member mounted on said movable support and constructed and arranged to protect from the application of cement thel 4 upper of the shoe' rabove the foxing area thereof with its' upper edge portion close to the upper edge of the toning 4area. therebv,

o to determine the line of demarcation between the cemented and uncemented portions.

31. In a fonng cementmfr machine. ,a movablv mounted cement-applying device. means for supporting a lasted' shoe for turning Q movement to lpresent,successive portions of th'epfoxing area of they shoe to the applving device. means for'holding said device in cement-applying relation' to the shoe. and shielding means interposed between said device and vthe shoe and having an edge in close relation to the upper edge of the foxing area of the shoe thereby to limit the application of cement to portions of the shoe below that edge. l Y .55, 32.\In a foxing cementing machine'. a cement-applying device to deposit afstrpe of cement around a shoe, a movable support for said device, means for supporting a shoe constructed and arranged to present various portions of the foxing area successively to said applying device, and shielding means, interposed between the applying device and the shoe, for determining theupper limit of the stripe of cement deposited on the shoe, said means being constructed and arranged cement applying device. a member constructtestimony whereof I aiix m si ature. STEPHEN W. O N.

Images