US79521A - Samuel b - Google Patents

Description

VANCE & SMITH.

Clock-Case.

No. 79.521. v Patented June 30, 1256 8.

@niieh tstes iQ-atmt @ffirr.

SAMUEL B. VANCE AND EDGAR M. SMITH, OF NEW YORK, N. Y., ASSIGNORS TO MITCHELL, VANCE, AND COMPANY, OF SAME PLACE.

Lam Patent No. 79,521, dated June so, 1868.

IMPROVED COMPOSITION CLOCK-CASE.

-T0 ALLWH 'M IT' MAY CONCERN:

Be it known that we, SAMUEL B. H. Vance and EDGAR M. SMITH, of the city, county, and State of New York, have invented certain new and useful Improvements in the Manufacture of Composition Clock-Cases, in imitation of marble or other natural stone; and we do hereby declare the following to be a full, clear, and exact description of the same, reference being'had to the accompanying drawings, making a part of this specification, in vvhichv Figure 1 represents a perspective view of a clock-ease made after my plan, and

Figure-2 represents a perspective view-of a grooved, rabbeted, or recessed metallic ring, cemented in the case, for receiving and holding the clock-works. i

This invention relates, first, to a clock-case made of a composition of mineralmatter, which may be variously colored, and mixed and moulded in a plastic state, so as to represent marbles of varied colors.

And, secondly, our invention consists in moulding or cementing into a composition clock-case a grooved,

rabbeted, or recessed metalring, for receiving, holding, and uniting the clock-works thereto.

To enable others skilled in the art to makeand use our invention, we will proceed to describe the same with reference to the drawings.

First, we take a cement, in powder, known as .Reevess cement, which, by analysis, is composed of the following ingredients and proportions, viz

Sulphate of lime, (plaster of Paris,) 93.84 parts. Alumina, g 1.09 Carbon, lump-black) 't 1.97 Potassa and silicic acid, 1.81 Hygroscopic water, 0.55 .Waiterin chemioalcombinntion, 0.74

To produce artificial stone from this cement, of varied colors, we use more or less coloringmntter, without varying the other ingredients materially, if at all, as the proportions have been ascertained to be as near correct as ossible.

- p This cement or these ingredients are mixed into a paste or mortar by adding to them a very dilute solution of alum, and then it is moulded to the desired shape, form, or ornamentation desired, rubbed smooth, and finished in imitation of marble.

The diii'erent parts of the clock-case may be madein separate pieces, and, of separate colors, and afterwards grouped and cemented together into one whole.

A, in fig. 2, is a' inetallic ring, grooved, rabbeted, and recessed, as .at a b 0, so as to receive and hold the clock-works, which are set in-a frame, said frame fitting into the grooves, rabbets, or recesses of said ring; and upon this ring there is-a guide, at, the top of which is hollowed out, to receive a similarly-shaped'piece attached 'to the clock-work frame, so that, by placing this part of the frame uponthe guide or hearing cl, in pushing in the frame, it will find its seat and bearing in the metallic ring, and then, by means of screws, is firmly attached thereto. This metallicring A, having been moulded into or cemented to the composition clock-case, gives the clock-work a very firm and secure position in the case. The dial-frame B, on the face of the clock-frame, is

secured to the metallic ring A by screws, and the door that covers the dial with its glass, or the sash-frame, as it is ter'med, is hinged to the dial-frame B, so that, in fact, this embedded metallic ring A holds all the parts firmly to the composition frame, which it would be diflieult 0 do'byiuniting .them to the clock-case after it was made, the material, in its hard condition, not being suitable to fasten these parts to; but, by the use of the metal ring A, made as mentioned, and moulded or cemented to the clock-case, the clock-works may be readily put in place, or removed for repairs, and again slipped back into their seat, andscrewed fast, and the sash and dial-frame also conveniently attached or detached.

Having thus fully described our invention, what we claim is- 1. A clock-frame, made of the composition herein described, made plastic by diluted alum, and colored and moulded into shape or form, as herein described and represented.

2. We also claim, in combination with a composition clock-case, made in imitation of marble, a metallic ring, embedded or cemented thereto, whichring serres as a seat for the clock-gear and other attachable or removable parts, as described and represented. A

- SAML B. H. VANCE,

EDGAR M. SMITH. -Witnesses:

EDWARD RAYSEL,

S. Las'sn. I

Images