US119705A

US119705A - Improvement in cuspadores

Info

Publication number: US119705A
Authority: US
Publication date: 1871-10-10
Anticipated expiration: 1888-10-10

Description

N70. H9,705. Y Patented Oct. 10,1871. I

yhwuw,

PATENT OFFICE.

EUGENE A. HEATH,

IMPROVEMENT OF NEW YORK, N. Y.

IN CUSPADOR ES.

Specification forming part of Letters Patent No. 119,705, dated October l0, 1871.

To all whom it may concern:

Be it known that I, EUGENE A. HEATH, of New York city, in the State of New York, have invented certain new and useful Improvements in Guspadores, of which the follow-ing is a speciiication setting forth what I consider th'e best means ofcarrying it into eiiect.

The accompanying drawing forms a part of this specification. Figure l is a vertical section, showing the construction in its proper position;v and Fig. 2, a double view, the strong lines being a section in an upset or overturned position and the dotted lines an elevation inits upright posi-tion.

Similar letters indicate like parts in both the gures. i

I form separately three metallic parts and unite them, after suitable preparation, tightly and strongly by soldering. The lowermost, A, is of cast-iron, thick at the extreme bottom and thinner toward the top. Its upper edge is rabbeted and nicely iinished to receive the lower edge of the sheet-metal part B,.and form a flush exterior surface therewith, as shown. B is a piece of sheet-iron pressed in a Grimshaw press, or otherwise formed in the proper dome shape, and of eX- actly the proper diameter, and with a vertical flange at its upper edge, as shown. C is aconical piece, which may be similarly formed into shape. Its lower edge has a lian ge which matches closely inside the iianged upper edge of B, and its upper edge is turned over by the ordinary tinsmiths tools or otherwise, and made to embrace a wire ring, D, to stiften it, the construction of which is obvious.

On soldering the several joints, smoothly and properly decorating the surfaces, there results a metallic cuspadore not liable to fracture, and lighter than ordinary cuspadores on its upper side and much heavier than ordinary cuspadores on its lower side.

One of the important ends attained by my invention is extraordinary stability. If the cusp-` adore is upset by any chance and caused to lie for a time in the position indicated by the strong lines in Fig. 2, the excess of weight in its base, taken in connection with its form, causes it to return again of itself to its proper upright position as soon as the disturbing cause is removed.

I have shown the interior as formed with an offset, below which it is materially thicker than above, and prefer to so cast it. The upper portions may be formed, with some success, by spinning suitable thin brass.

The junctions of the several parts may be further secured by causing one part to cling upon a bead in addition to the soldering. In some cases rivets or the like ordinary or suitable fastenings may be employed.

I claim- A metallic cuspadore having a heavy base, A, and a light upper portion, B O, formed and combined substantially as and for the purposes herein set forth.

In testimony whereof I have hereunto set my name in presence of two subscribing witnesses.

E. A. HEATH.

Witnesses AUGUsTUs l?. MoGEAw, C. C. LivINGs.