US123572A - Improvement in devices for securing covers to vessels - Google Patents

Description

CHARLES A. MARSHALL.

Improvement in Devices for Securing Covers to Vessels.

Patented Feb-13,1872.

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GHAFLES'A. MARSHALL, or CLEVELAND, 01110.

IMPROVEMENT lN DEVICES FOR SECURING COVERS TO VESSELS.

Specification forming part of Letters Patent No. 123,572, dated February 13, 1872.

To all whom "it may concern:

Be it kno \vn' that I, GnARLEs A. MARSHALL, of Cleveland, in the county of Ouyahoga and State of Ohio, have invented a certain new and Improved Device for Securing (lovers to Vessels; and I do hereby declare that the following is a full, clear, and complete description thereof, reference being had to the accompanying drawing making part of the same.

SPECIFICATION.

Figure l is a side view of the vessel. Fig. 2 is a top view. Figs. 3 and 4 are transverse vertical sections. Fig. 5 is a detached section.

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

The nature of this invention relates to a class of vessels used for the transportation of articles which need to be kept air-tight during such transportation; and the object of this invention is to secure the covers of said vessels in such a manner as to render the same airtight, and which covers can be easily put on and taken off as required, as hereinafter described.

In the drawing, Fig. 1, A represents the vessel, which may be of any capacity and shape desired B is the cover. der side of said cover is rabbeted out, thereby forming a shoulder, 0, Figs. 3 and 4, which fits closely the inside of the vessel, while the upper part of the cover projects over and upon the brim of the vessel, as shown in said figure.

The cover is secured to the vessel by means of the cross-bar D, Fig. 3, the ends of which are held by the lugs E, a detached view of one being given in Fig. 5. From the cross-bar D projects a stem, F, Fig. 4, passing through the center of the cover. On the end of said stem is cut a screw, G, to which is fitteda fingernut, H, whereby the cover is screwed down upon the vessel. I, Figs. 3 and 4, is a bail or guide secured to the under side of the cover, the purpose of which will presently be shown. The manner of putting the cover upon the vessel is as follows: Said cover is placed upon The edge of the unthe vessel with the cross-bar D suspended in the bail I, the ends of the bar being a little distance one side from each lug. The bail I acts as a guide in preventing the cross-bar from swaying in either direction, as it might otherwise do, and is of suflicient length to allow the ends of the bar, while suspended therein, to fall just below the point a of the lugs. The cover is then turned in the proper direction, and the ends ofthe cross-bar strike against the side I) of the lugs; or, in case that the bar is not lowered sufliciently for this the ends thereof will hit against the point a of the lugs, which are made very sloping, as shown in Fig. 5, so as to allow the ends of the bar to slip down and under said points into the notches c,- or the bar may be lowered enough to admit of its ends fitting in under the lower part cl of the lug, if desired. Upon the end of thestem is screwed the'nut H, drawing the cross-bar to the position shown in Figs. 3 and 4, the ends of the same fitting up closely and securely in c the notches c, and thereby drawing the cover down tightly upon the rim of .the vessel. By this manner of central fastening the edge of the cover is forced down upon the rim of the vessel equally all'around, so that no part of the cover will spring up in consequence of a greater force being applied to other parts, as is often the case when the fastening is of such a nature as to bind down the cover by the clamping being applied to opposite sides only instead of being applied equally, as in my fastening.

Claim.

What I claim as my invention, and desire to secure by Letters Patent. is-

The cross-bar D, stem F,-and nut H, in com bination with the bail I, lugs E, vessel A, and cover B, substantially in the manner as and for the purpose set forth.

CHARLES A. MARSHALL.

Witnesses:

J. H. BURRIDGE, D. L. HUMPHREY.

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