US1683680A - Coating machine - Google Patents

Description

k F. N. LA CHAPELLE COATING MACHINE Original Filed Nov. 22. 1920 Patented Sept. 11, 1928.

UNITED STATES PATENT OFFICE.

FRED N. LA CHAPELLE, OF BEVERLY, MASSACHUSETTS, ASSIGNOR 'l'O UNITED SHOE MACHINERY CORPQRATION, OF PATERSON, NEW JERSEY, A GORPORATIONOF JERSEY.

COATING MACHINE.

Application filed November 22, 1920, Serial nu. 425,743. Renewed May 21, 1926.

This invention relates to machines for coating various articles, especially those in which it is desired to produce a sharply defined line'between coated and uncoated areas. An example of work of this character is found in shoes of the tennis type, in which the entire circumference of the lower portion of the lasted upper has applied to it a band of cement to secure the foxin strip, which assists in the attachment of the sole. Here it is highly desirable to confine the cement to the line along which the upper edge-of the foxing is to lie, since any overrunning' of this tends to deface the upper. The avoidance of this smearing is particularly necessary in shoes having uppers of white or ligl1tcolored material. At present the cementing for foxings is most successfully effected manually, the operative working gradually about the foxing area with a brush held inthe hand, This is obviously a relatively slow procedure, depending for its success upon the skill of the operative, and is at bestuncertain.

One objectof the present invention is to provide a machine for coating such work,

which will, without special effort'on the part of the operator, produce a uniform, determinate line of demarcation between the adjacent areas. In accomplishing this object, I provide between the Work and the member for applying the coating fluid an i111PGI'fO- rate shielding member, having a surface with which a portion of the applying surface contacts. It will be seen that to produce a properly-defined coated area with such an organization, the operator, upon bringing the work into contact with the applying I member, needs only to keep the edgeof the shielding member at the line which it is desired shall mark the edge of the coatedportiona IVith this relation established, the overrunning of the applying member is all upon the shieldingmember, which completely protects the portion of the work which .is

to remain uncoated. To present a freshsur face of the shielding member to the work,

' so that it shall not, in the operation of the a plying member, gather coating fluid and hold it to overflow upon the shielded area, said applying and shielding members are made relatively movable. Preferably, both the members move, the applying member to effect the application of the coating, and the shielding member for the purpose just incheated, and this movement may be at different rates of speeds. To avoid applying the coating fluid to the shield while work is not being done by the machine, said shield is shown as normally out of contact with the applying surface, and is movable toward and from it. The shield may also be movable transversely of the applying surface to expose a greater or less amount, to adapt the machine for coating over different widths.

lustrated, the applying member consists of a rotatable brush, and the shielding member of a strip of relatively thin, flexible material, thelatter being normally spaced from and movable at a'dilferent rate from the applying application, Serial No. 250,130, filed.

January 28, 1.928, which is a division of the present application.

In the accompanying drawing,

Fig. 1 illustrates in perspective one of the several possible forms which my invention may assume; and

Fig. 2 is atransverse section through the elements more closely associated with the work. y

In a suitable frame 10 is rotatably mounted a shaft 12, liavim fixed at one extremity an applying member, here shown 'as a brush 14. The shaft and brush are rotated from a.

convenient source of power by means not shown. The brush is supplied with the coating fluid, as cement, from a receptacle 16, through a conduit 18 passingthrough the frame to a casing 20, which surrounds the upper portion of the brush. The flow'of cement through the conduit may be controlled by a valve 22. Between the casing,

and brush, on the downgoing side of the lat-' ter in its rotation, is a gate 24: to limlt the In, the particular machine which I have ill passage of cement in this direction, its relation to the periphery of the brush being controlled by a screw 26 threaded into thetop of the casing. Beneath the shaft 12 there is mounted upon a frame, by means of a screwand-slot connection 28 pern'iitting adjustment toward and from the brush, a workrest 30 for positioning :I'SllOG in predetermined relation to the applying member. In the present instance, since this is to be used in contact with the bottom of a lasted shoe to present the foxing area to the brush, the extremity 32 of the rest is inclined to position this surface of the upper properly with respectto the brush.

Adjacent to the applying surface of the brush is a segmental guide'member 3%, which may be formed of sheet metal. The guiding portion proper of this member, appearin at .36, is concentric to the periphery of the brush, and is U-shaped, the legs of'the U extending laterally of the brush, the lower beinglonger and projecting beneath the ends of the brush fibers. The upper leg of this ,portion 36 is cut away, so that its inner ex tremity lies outside the edge of the brush. The guide member 34 is shown as supported upon a bracket 38 extending from one side of: the machine, it being secured thereto by a bolt 40 passing through a horizontal slot 42. This connection allows the guide member to be moved transversely of the brush, for a purpose which will hereinafter appear. Carried" at one side of the frame is a bracket T 44, hearing at its upper extremity a support,

as a reel 46, for a shielding strip 48, which strip may be of any suitable flexible material, paper being convenient. A friction device 49, associated with the reel, prevents the too free drawing-off of the strip. From the reel the strip passes downwardly and through the U-portion of the guide member, its inner edge extending beyond the lower wall of the U, and being held somewhat separated from the brush and concentric therewith. The di- "rection in which the strip approaches the guide member is preferably tangential, and upon the opposite side, the strip leaves the guide member also in 'agenerally tangential direction, passing upwardly between a pair of feed- rolls 50 and 52 rotatable upon the frame... 50, as illustrated, is an idle bed-roll, it being flanged to prevent'la'teral movement of the strip out of engagement with its surface. The roll-52 may have'extending about it circumferential corrugations 53, which reduce the area contacting with the strip-sun face carrying a certain amount of cement. The roll 52 is secured upon one end of a shaft n45 journaled in the frame of the machine, and having at its opposite extremity a ratchet-wheeled With the teeth of this wheel eo-operates a pawl 58, pivoted upon a leVerGO arrangedto swing upon the end of the shaft S l. Articulated to the lower end of the lever is an eccentric rod (32, the strap of which surrounds an eccentric (54 fast upon the shaft 12. It will be seen that for each complete rotation of the brush shaft 12, the eccentric may be caused to move the pawl 58 through the length of one or more of the ratchet-teeth, as may be desired, thus, through the contact of the roll 52 of the strip, advancing the latter to draw off from the reel 46 and present to the applying brush fresh portions of the strip, thus effecting a. relative movement of translation between the shielding member and the cement applying device as successive portions of the foxing area are presented to the applying device.

In using the machine for cementing tennis shoe uppers, such as shown at S in Fig. 2 of the drawings, the lasted shoe is presented to the brush by the operator, being guided, over and positioned by the inclined end 32 of the work-rest. In preparation for this, the guide member 34 has been adjusted by means of its bolt 40 transversely of the brush to so position the shielding member or strip 48 entirely covering an outer portion of the applying surface that the distance between the inner edge of said strip and the op )osite side of the brush substantially equals the width of the surface to be coated. The operator, holding the work in the hands, turns it towbring the entire length of the foxing area into contact with the brush, the strip extending substantially flat-wise transversely of the upper of the shoe, with one edge of the strip coinciding approximately with the line along which the foxing is to lie and defining the line of demarcation between coated and uncoated surfaces. The portion of the brush beyond this line rests upon the strip, as the edge of the latter projecting from the guide is carried toward it by the pressure of the work, said strip thus entirely shielding from thecement the surface of the upper which is to remain uncoated. By reason of the flexibility of the shielding member and the fact that it is positioned substantially flat-wise against the work, it is particularly effective in protecting a portion of the upper. Therefore, beyond determining that in the advance of the shoe the previously-indicated relation is maintained, no care is necessary to produce a perfectly uniform edge of the coated area. As the operation continues, the feed of the strip by the roll 52 shifts the shield-strip, so that the surface which has been in contact with the brush is carried away from the point of application of the work for dis )osal, and a fresh unsmearcd section broughtinto action. The used por' tion of the strip may be cleansed in some appropriate way, and returned to the reel to'be used again, or may be thrown away, it being so slowly advanced that relatively little is used for shielding a number of the shoe uppers operated upon.

Having described my invention, what I claim as new and desireto secure by Letters Patent ofthe United States is: V

1. In a shoe coating machine, an applying member, and an imperforate shielding member situated between part of the applying.

surface of the applying member contacts.

2. In a coating machine, an applying member, a shielding member of determinate length and temporary nature situated between the applying member and the work, the applying and shield ng membersbeing relatively movable and being arranged to provide for the continued interposition between the applying member and the work of a fresh portion of the shielding member which has not previously cooperated with the work, and means to carry away used portions of the shieldingmember for disposal.

In a coating machine, a movable applying member, a shieldin member situated between the applying menilier and the work, and means for moving the shielding member at a different rate from the applying member.

4. In a machine for applying liquid coating materials to shoes, an applying member having a work-contacting surface arranged to apply said liquid materials, a shielding member situated between the applying member and the work, said shielding member having a surface over which a portion of the applying surface of. the applying member operates and being arrangedto leave another portion of the applyin member at all times free for contact wit 1 the work,

and means arranged to move the shielding surface with relation to' the applying surface. j I 5. In a coating machine, amember having an ap lying surface, a work-rest situated at one site of the appl mgrmember, and a shield extending over t e'applying surface from the side opposite thework-rest.

6.'In a coating machine, a. member having a' circumferential applying surface, a

shield surrounding a portion of the applyingsurface between it andthe work to be coated, and means arranged to maintain the shield substantially concentric to such portion;

7. In a coating machine, a rotatable member having a circumferential applying surface, and an imperforate traveling shield surrounding a portion of the applying surface between it and the'work to be coated and leaving the remainder of the applying 8. In a coating machine, a rotatable me1nher having a circumferential applying surface, a shieldsurrounding a portion of the applying surface between it and the work to be coated, and means for advancing the shield at a different rate than that at which the applying surface moves. v

9. In a coating machine, a' member having an applying surface, and a shield situated between the applying surface and the work to be coated and being held normally out of contact with the applying surface.

10. In a coating machine, a member having an applying surface, and a1 shield situated between the applying surface and the work to be coated andbeing arranged to move toward and from theapplying surface.

11. In a coating machine, a member having an applying surface, and a shield situe ated between the applying surface and the work to be coated and being arranged to move transversely of the applying surface to expose a greater or less extent thereof to contact with the work.

'12. Ina coating machine, a member having an applying surface, a movable shield cooperating with the applying surface, and aguide arranged to maintain the shield normally out of contact with the applying surface.

13. In a coating machine, a member having an applying surface, a travelingshield co-operating with the applying surface, and a guide surrounding one edge of the shield and through which it travels.

14:. In. a coating machine, a member having an applying surface, a movable shield cooperating with the applying surface, a guide for the shield, and means arranged to adjust the position of'the guide across the ap loo liifIn a coating machine, an applying brush, and a shielding strip of relatively.

thin l1121t"tll having one edgclying in a plane between the sides of the applying surface and the opposite edge situated at one side of said applying surface.- s

17. In acoating machine, an applying brush, and a flexible strip normally spaced from the brushand arranged to be forced against the brush by contact of the work.

18. In a coating machine, a cylindrical ap plying brush a guide situated adjacent to the applying surface, and a flexible strip movable through the guide and having a portion maintained thereby concentric to the applying surface.

19. In a coating machine, a rotatable strip and to remove the used portions.

21. In a. coating machine, a rotatable brush having a circumferential applying surface, a guide extending concentrically to In a coating machine, a brush having an applying surface, a guide situated adjacent to the applying'surface, and a flexible strip movable through the guide and being normally spaced from the applying surface.

23. Ina coating machine, a brush having an applying surface,ia guide situated adjacent to theapplying surface. and a flexible strip movable through the guide,said guide being arranged for movement toward and from the brush to vary the relationof the strip thereto.

2%. In a coating machine, an applying member, a guide adjacent thereto arranged tohold a strip normally out of contact with the applying member, a strip-support situated at one side of the guide, and stripfeeding means at the opposite side of the guide.

25.. In a coating machine, a rotatable memher having a circumferential applying surface. a strip-guide concentric with the applying surface, and a reel and feed-rolls arranged to respectively supply a strip to and to draw it from the guide in directions substantially tangential thereto.

26. In a foxing-cementing machine, a retatable applying brush arranged for contact with the foxing area of a shoe, and a flexible strip arranged to be interposed between a portion of the, brush and the upper of the shoe adjacent to the foxing area.

strip extending over the surface of the brush from the side opposite the bottom rest.

28. In a machine for applying cement to the foxing area of a shoe, means for positioning a shoe, means for positioning a shieldingmember in such relation to the shoe that it will determine the extent of the foxing area to be coated, and means for applying cement to said area. i

29. Ina machine for applying cement to the foxing area of a shoe, cement applying means, means for positioning a shoe in predetermined relation to said applying means so that cement may he applied to the foxing area of the shoe, and a shielding member positioned to protect an area of the shoe adjacent to the foxing area and to determine the line of demarcation between the foxing area and said adjacent area.

30. In a machine for applying cement to the foxing area of a shoe, cement applying means, means for positioning a shoe in predetermined relation to said applying means so that cement may he applied to the foxing area of the shoe, and a shielding member positioned substantially flat-wise of the adjacent portion of the upper of the shoe to protect that portion of the upper of the shoe which is adjacent to the foxing area and to determine a line of demarcation between the foxing area and said adjacent area which will be substantially coincident with the edge of said shielding member.

81. In a foxing cementing machine, :1 ccmentapplying device, means for locating a shoe,means for shielding the upper portion of said shoe to protect said portion from the application of cement, and means for causing a relative movement oftranslation between said cement applying device and the shielding means as successive portions of the foxing area of the shoe are presented to the applying device. I

In testimony whereof I have signed my name to this specification.

FRED N. LA CHAPELLE.

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