US369168A

US369168A - Michael deebingy of syeacuse

Info

Publication number: US369168A
Authority: US
Publication date: 1887-08-30
Anticipated expiration: 1904-08-30

Description

(No Model.)

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UNITED STATES "PATENT OFFICE.

MICHAEL DEERING, OF SYRACUSE, N EW YORK, ASSIGNOR TO CHRISTOPHER C. BRADLEY, OF SAME PLACE.

COVER FOR HEATING-FORGES.

SPECIFICATION forming part of Letters Patent No. 369,168. dated August 30, 1887.

' Application tiled February 2S, 1887. Serial No. 229,155. (No model.)

To all whom, it may concern:

Be it known t-hat I, MICHAEL DEERING, of the city of Syracuse, 'in the county of Onondaga and State of New York, have invented new and useful4 Improvements inv Covers for HeatingForges, of which the following is a specilication.

This invention relates to the removable'covers which form the tops of heating-forges. These covers as ordinarily constructed consist of a number of ire-bricks and a metallic frame or band which encircles the bricks and holds the same together in the form of a rigid plate. The excessive heat to which these covers are exposed expands the metallic frame or band, which causes the bricks to become loose and to fall out.

The object of my invention is to overcome this difculty; and it consists in the improvements which will be hereinafter fully set forth, and pointed out in the claim.

In the accompanying drawings, Figure l is an end elevation of my improved cover applied to a heating-forge. Fig. 2 is an elevation at right angles to` Fig. 1. Fig. 3 is a top plan View of the cover. Fig. 4 is a top plan view of. an extended cover. Fig. 5 is a fragmentary top plan view of my improved cover, showing a modified construction of the metallic frame. Fig. 6 is a vertical section in line x x, Fig. 5.

Like letters of reference refer to like parts in the several figures. y

A represents the upper portion of a heating-forge of usual construction.

B represents one or more rows of nre-bricks or stone or other refractory blocks arranged in the form of an arch, which rests upon the forge on opposite sides of the hearth thereof.

C C represent the two portions 'of the metallic frame in which the arch of bricks B is secured. Each section C consists of a curved metallic plate, which rests against the upper side of the arch and extends from the crown to the outer end thereof. Each plate C is provided at its outer edge with a downwardlyprojecting flange, d, which bears against the end of the arch. -The adjacent inner ends of the plates C C are connected by one or more movable joints, which permit the outer ends of the plates to be adjusted toward and from each other, as may be necessary to clamp the bricks securely.

As shown in Figs. l, 2, 3, and 4, the movable joints are formed by perforated lugs e e, formed on the plates, and a pintle or bolt passing through said lugs and forming therewith hinges on which the plates can swing.

In the construction' represented in Figs. 5 and 6 the movable joints are formed by round knuckles f, formed on one plate, and engaging in socketed or recessed lugs g, formed on the other plate. The two jointed plates are adj usted by one or more screws, h, passing through upwardly-projecting arms z', formed on the plates near their inner edges, and pro vided with screw-nuts j, which bear against the inner sides of said arms.

Upon tightening the screw-nuts j the outer ends of the plates C are swung toward each other, thereby clamping the arch of brick and forcing the latter upwardly against the concave lower sides of the plates C. This produces a close iit of the bricks in the metallic frame formed by the plates C, and holds the individual bricks closely against each other. Vhenthe bricks show a tendency to become loose, the plates are easily adjusted to clamp the bricks securely.

'Ihe plates C C may be made of any desired length. Vhen the plates are comparatively short, as indicated in Figs. 3 and 5, two movable joints or hinges and a single adjustingscrew are sufficient for connecting the plates. When longer plates are used, as indicated in Fig. 4, the number of `movable joints and adj usting-screws are increased. Instead of forming asingle long cover by extending the plates,`

as indicated in Fig. 4, a number of short cov ers may be arranged in line with each other. If the length ofthe arch of bricks varies somewhat by reason ofthe unequal size of the bricks, the frame is the arch to be clamped.

I am aware that it is not new to clamp the bricks between end plates which are pivoted to the outer ends of bars extending over the arch, and which are provided with an adjustf ingrod,whereby thepivoted platesare clamped against the brick-work, and I do not claim such construction.

quickly adjusted to the length of lOO I claim as inyinventionm justing device, whereby the end flanges are In a furnace-cover, the combination, with pressed against the arch by separating said an arch of refractory blocks, of two metallic arms, substantially as set forth. binding-p1ates hinged together over the crown fitness my hand this 12th day of February, 5 of the arch, and constructed with concave 1887.

lower surfaces bearing against the upper side ,1 of the arch, and provided at their outer ends MICHALL DDERNG' with rigid anges which bear against the ends \Vitnesses: of the arch, and near their inner ends with up- CALVIN S. BUNNELL, ro Wardly-extending arms connected by an adl JNO. J. LYNCH.