US233583A - Harness-rosette - Google Patents

Description

O. F. WALDRON. Harness Rosette.

NO- 233,5 83. Patented Oct 1 0' Wii/75 55 ES] /W. M

NLPETERS. PHUTO-LITHOGRAP HER. WASHINPTON D C UNTED STATES CHARLES F. WALDRON, OF BOSTON, MASSACHUSETTS.

HARNESS- ROSETTE.

SPECIFICATION ferming part of Letters Patent No. 233,583, dated October 19, 1880.

Application filed March 13, 1880.

TO all whom it may concem Be it known that I, CHARLES F. WALDRON,

of Boston, Massachusetts, have invented certain Improvements in Harness Rosettes or Ornaments; and I do hereby declare that the same are fully described in the following specification and illustrated in the accompanying drawings.

, The object of thisinvention is to strengthen and beautify rosettes and similar ornaments; and my improvements relate .to the construction of the shell Or metallic back to which the attaching-loop is secured, and to the combination of a beveled body Or disk therewith.

My invention is embodied .in a rosette having a sheet-metal shell of substantially uniform thickness, Inade with a convex inner surface bounded by an annular bevel, and terminating in a flange adapted to secure a glass or other suitable disk in front of the convex surface.

The drawings, Figures l, 2, and 3, represent such a rosette in section, front view, and perspective.

It has long been common to make buttons with stone, horn, glass, or composition bodies and flanged metallic backs, concave on the inner side next to the body, and provided with a suitable eye for attaching them to garments Or Other articles. Harness rosettes have also been made of a fiat sheet-metal plate, fianged to receive a metallic disk and to secure a glass body in front thereof, and provided with a suitable attachin g-loop on the back. Others are in use having a glass disk, held in position in front of a polished concave metallic shell, which is made thicker at its central part, where the loop is attached, than at and near its flanged edges.

My improved rosette is materially different from any of these, both in appearance and in the qualities of Strength, durability, and cheapness, due to its construction.

The shell is struck up from a sheet-metal blank with punch and dies, in a manner well known to Inetal-workers, and a flange, a, is

formed, projecting forward from the edges, to grasp the periphery of the disk d and hold it in position.

Adjoining the flange I form a beveled ring, b, about as shown in Fig. 1, and within this (Model.)

bevel the central part, c, of the shell is made oonvex on its front face, approachin g near to the inner face of the disk. The attachingloop eis secured by soldering it to the concave back of theshell.

The disk d is preferably of glass, beveled on its periphery, about as shown, and the inner face of the shell brightly polished.

The advantages of this construction rclate both to beauty and utility.

The central part of theconvex shell is radiant, refiecting the face of the Observer with various other objects. Around this appears an annulus, f, as of ground glass, which is the refiection of the beveled face g of the glass disk. This is surrounded by the bevel b of the shell itself.

The convex reflecting-surface produces a most plcasing Optical illusion the Sensation of depth in the rosette or distance of the image reflected which effect could not be produced by a plain or a concave reflecting-surface. This effect is materially heightened by the reflected bevel of the glass and the actual bevel of the reflecting-surtace. Figs. 2 and 3 are intended to represent this feature.

The outward bevel of the back and the inward conv'exity of its central part have the effect of corrngation to stiffen and strengthen the shell greatly, so that I am able not Only to use sheet metal of uniformthiekness, but also to employ a much lighter grade of stock than has been practicable heretofore.

Fnrthermore, the loop e is' more readily and firmly secured to the shell than to one fiat or outwardly convex, since its feet rest in the depression of the back, where the solder is less likely to flow away from the leg when applied, and is not exposed to friction of the strap passing through the loop when in use.

Again, the rosette rests firmly against the leather, to which it is attached at the line of junction of the bevel and concave portions of the back of the shell, and is therefore held more securely than when the back is conVeX, and is less likely to catch the mane Or any small object.

The bevel forms a defined shoulder, against which the inner angle of the disk rests, holding the glass a suitable distance from the reflecti n g-surface.

IOO v An initial Or Other ornament may he Cut OI' ainted On the inner face Of the disk, in the usual way.

I claim as of my invention A sheet-metal Shell having a polished conveX inner surface. c, an annular bevel, Z), surronnding said surface, and a projeotingflange,

a, in combination with a disk, d, secnred in position in said shell by the flange a, Substantially as set forth.

CHARLES F. NVALDRON. Witnesses:

C. G. KEYEs, A. H. SPENCER.

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