US137465A - Improvement in buffing-machines - Google Patents

Description

UNITED STATES PATENT OFFICE.

WILLIAM W. MESSER, JE., or BOSTON, MASSACHUSETTS, ASSIGNOE To WILLIAM w. MESSER, or NoETHwoon, NEW HAMPSHIRE.

IMPROVEMENT IN BUFFING-MACHINES.

Specification forming part of Letters Patent No. 137,465, dated April 1, 1873; application filed January 14, 1873.

To all whom it may concern:

Beit known that I, WILLIAM W. MESSER, Jr., of Boston, in the county of Suffolk and State of Massachusetts, have invented an Improved Bufflng-Machine; and I do hereby declare that the following, taken in connection with the drawing which accompanies and forms part of this specification, is a description of my invention sufficient to enable those skilled in the art to practice it.

In buffing-machines, or machines used for sand-papering boot and shoe soles, it is customary to employ a simple cylinder or roll covered with sand-paper, the cylinder being mounted on a shaft which at its ends is journaled in suitable bearings. Such cylinders have to be bonneted or partially incased to catch and conduct the dust formed by the abrasive action of the cylinder.

In my machine I make the cylinder in the form of a long hollow cone (or cone frustum) and fix it upon the end of a driving-shaft so that the cone is a projection, or overhan gs its bearings. Within the cone(whicl1 is made as a shell and is open at 'both ends) I preferably form or place spiral or screw-shaped blades, which, as the cone rapidly rotates, create a current or currents of air through the cone from outer end to rear. There may also be a propeller-wheel Xed on the shaft at or near the large end of the cone. The cone is covered with felt or other soft material as a foundation for the sand-paper or similar abrader, which makes the buffing-surface of the cone.

The invention consists in a bufling-machine having the buer made in conical or frustoconical form; in making such buffer-cone as a projection beyond the bearings of the shaft, of which its center forms an axial continuation; in making the cone hollow and with spiral blades for creatin ga current through it; in combining with the hollow cone apropeller-blade for projecting the dust away from the machine, and in some details of construction to be more particularly set forth in connection Withthe g description of the drawing.

The drawing represents a machine embody. in g the invention.

Figure l shows the machine in end elevation. Fig. 2 is a vertical central Section.

a a denote two housings, in which is journaled a Shaft, b, carrying a pulley7 c, and driven by any suitable power. At thel front end of this shaft is the cone d, fixed to and rotating with, or as a part of, the shaft. Wrapped around the outer or conical surface of this cone is the Soft cover e, and enveloping this cover is the sand-paper or other suitable iiexible abrader f. The sheet of paper upon the cone is, of course, of corresponding shape to the cone, and, if formed before application to the cone, the paper will be a conical shell. The paper is preferably made as such a shell; and for this purpose a flat sheet of paper may be first cut into proper shape (with two straight and two concentricedges) and then bent and the straight edges lapped and united by cement, or butted and united by an underlaid staypiece crossing the joint and cemented to the paper, or the Shell f may be formed whole while the paper is in a pulpy or semi-pulpy condition. Preferably, however, the paper is out to shape, as described, and its edges lapped orA butted and united by cement.

When the shell is formed it is slipped over the cone, and, although it may be tacked to hold it in place, I prefer to hold it by a ring, g, which slips over the cone and holds the paper by friction, by having suitable pins held down to, or forced into, the paper by springs, or by any other suitable means, which permit its ready detachment for removing or renewing the sand-paper.

The cone thus surfaced may be made solid,

and, rapid rotation being imparted to it, the entire surface will be presented in convenient po sition for holding to any part, or to the respective parts, thereof the various parts of the ar ticle to be buffed, the projection of the cone from the bearings enabling its eXtreme outer end to be reached and used, and the conical form causing the dust of abrasion to have a tendency to move toward the large end ofthe cone.

To increase this tendency, however, I make the cone hollow or as a shell, and I form or place within it spiral blades h, which, in their rotation, create a strong rearward current through it. By means of these blades a current is produced that tends to form a vacuum Wheel and rear end of the cylinder, this ring having a bell-mouth, l, which Will tend to conduct the dust toward the axial current of air. The inner bearing may be placed between the Wheel t' and the end of the cone.

Without the accessories described the machine Works very advantageously, and with them it forms a machine very much superior to any bufng-machine'in use.

I claiml. A bufng-machine, having a cone-shaped or frusto-conical buffer surfaced with a removable sandpaper cover, substantially as described.

2. The rotary buftercone formed as a projection beyond the bearings of its shaft, substantially as shown and described.

3. The hollow frusto-conical buer and the spiral blades formed Within it, substantially as shown and described.

4. In combination with the hollow cone surfaced with a removable sand-paper cover, the propeller-wheel@ arranged substantially as shown and described.

5. In combination with the hollow cone, the trumpet-mouth guard-ring 7c, substantially as shown and described.

6. The conical shell, formed of the flexiblescribed.

WILLIAM W. MESSER, JR.

Witnesses FRANCIS GoULD, n M. W. FROTHINGHAM.

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