US780768A - Device for applying liquids. - Google Patents

Description

No. 780,768. PATENTED JAN. 24, 1905- W. WIGGINS.

DEVICE FOR APPLYING L US.

A-PPLIOATION FILED MAY 31,

NITED STATES Patented January 24, 1905.

ATENT DrrIcE.

DEVICE FOR APPLYING LIQUIDS.

SPECIFICATION forming part of Letters Patent No. 780,768, dated January 24, 1905.

' Application filed May 31, 1904;. Serial No. 210,377.

To a whom it may concern:

Beit known that I. WILLIAM Wrssms, acitizen of the United States, residing in Brockton, county of Plymouth, and State of Massachusetts, have invented an Improvement in Devices for Applying Liquids, of which the following description, in connection with the accompanying drawing, is a specification, like letters on the drawing representing like parts.

The present invention relates to a device for applying a fluid or liquid, such as cement, to the surface of an article, such as the bottom of a shoe to which a sole is to be cemented, the surface of which is more or less rounded or convex, the convexity differing in different parts, so that the surface is not regular.

The applying device embodying the invention is in the form of a roll; and the object of the invention is to construct the roll so that the surface thereof will conform to the surface of the article to which the cement is to be applied regardless of the shape thereof. Taking, for example, the bottom of a shoe, the surface thereof is much less convex in the main portion than in the shank and is also irregular in shape, and in order that an even amount of cement may be applied throughout it is necessary that the surface of the roll should be of such a nature as to conform to different shapes according to the shape of the surface with which it is in contact. It is further desirable that the roll when in normal condition should be substantially cylindrical, so that the cement will be taken up thereby in a film of substantially uniform thickness,

controlled, for example, by ascraper-blade set at any desired distance from the surface of the roll.

To these ends the roll embodying the present invention is provided with a flexible surface or carrying portion for the liquid, which portion is stretched over a suitable core, being supported only along the edges, the core having a concave surface to permit the carrying portion to yield. As herein shown, the carrying portion is secured by supporting members, which consist of extensible annular bands, such as endless rings of coiled or spiral springs which rest upon inclined shoulders formed on the core, the flexible carrying portion being stretched over the said springs in the form of a flattened tube, so that when pressure is brought to bear upon said flexible portion the springs will roll up the inclined surface, allowing the flexible portion to yield. As soon, however, as the pressure is released the springs by contracting will return to their normal position, again stretching the flexible carrying portion, so that the surface of the roll in its normal condition is substantially cylindrical.

The drawing is a longitudinal section of an applying-roll embodying the invention.

The supporting-core a or body of the roll is shown as a casting mounted on a spindle (0 so that the said roll can be rotatably mounted in any suitable way and partially immersed in the fluid or liquid which is to be distributedsuch, for example, as liquid cement to be applied to shoe-bottoms, for which purpose the article embodying the invention is mainly adapted. The said core is secured on the spindle by a set-screw a and has a con cave surface a, so as to permit the yielding cover or carrying portion 6 to move or yield inwardly, the said cover being stretched across the core, as shown, so as normally to form a substantially cylindrical outer surface for the roll. The said cover is made of any suitable flexible materialsuch, for example, as canvas or other fabric which is capable of taking up the cement for distributionand is shown as provided with yielding means for maintaining it stretched when no pressure is applied to the surface. As herein shown, the said yielding means comprise extensible annular members c such, for example, as endless spiral springs which normally rest against inclined shoulders a formed at or near the ends of the core a, it being obvious that if the said spiral springs are drawn inward toward the middle of the core they will be stretched and on contracting will tend to move back along the shoulders (0 where the diameter is less.

The cover 5 is in the form of a flattened tube extending around the annular members 0, so that the said tube is stretched across from end. 'to end of the core, but is capable of-yielding inwardly, as indicated in dotted lines, the annular members rolling up the shoulders a so that the outer portion of the tube can be pressed toward the core. As herein shown, the canvas of which the distributing-surface is made is drawn around the annular members and the ends stitched together on the inside, as indicated at 6 While, therefore, the carrying or distributing surface of the roll is normally substantially cylindrical and capable of being supplied with a uniform iilm of cement, the said surface is capable of yielding and conforming to a surface of any degree of convexity, the manner in which the said surface yields being illustrated in dotted lines, where the members care shown as pulled up along the inclined shoulders (4 against the tendency of said members to contract and move toward the point of smallest diameter. In order to prevent any liability of the slipping of the annular members 0 from the core at the ends in case the pressure upon the distributing portion is un-- equally applied, the core is provided with additional shoulders at, inclined upward from the normal seating position of the annular members, the said seating position being between the shoulders a and a, as shown.

What I claim is- 1. A fluid-applying roll comprising a supporting-core; a flexible fluid carrying or distributing portion in the form of a flattened tube; and extensible annular members within said tube, said core being provided with inclined shoulders or seats for said annular members, substantially as described.

2. The combination with a supporting-core; of two inclined shoulders at each end of said core, the said shoulders together forming a concave seating portion; annular flexible members supported on said seating portion; and a flexible fluid-distributing portion in the form of a tube stretched over the said annular extensible members, substantially as described.

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

WILLIAM WIGGINS.

Witnesses:

MARGARET E. GOVENEY, HENRY J. LIVERMORE.

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