US11305A - Bedstead-fastening - Google Patents

Description

` UNITED sTATEs PATENT OFFICE.

R. H. sT. JOHN, `OE coLUMBUs, OHIO.

BEDSTEAD-FASTENING.

Specication of Letters Patent No. 11,305, dated July 11, 1854.

To all whom t may concern:

Be it known that I, R. I-I. ST. JOHN, of Columbus, in the county of Franklin and State of Ohio, have invented and made certain new and useful Improvements in Bedstead- Fastenings `andI do hereby declare, that the following is a full, clear, and exact description of the method of construction and mode of operating the same, reference being had to the accompanying drawings, making a part of this specification, in which- Figure 1, is a perspective view of the bedstead complete, showing the keys a, a., a; b, Z9, the heads of the metallic clevis-clamp, c, c, c, which is represented as being let into the posts, and also into the upper and lower surfaces of the rail. Fig. 2, shows the post with the clevis-clamp a, running through it, and showing the key Z), inserted in one of the eyes 0, representing the manner of keying the post onto the rail.

To enable others to be skilled in the construction, use and application of my improved bedstead fastening, I herewith proceed to describe the same, the nature and principles of which consist in being able to apply my fastening to any ordinary bedstead already in use, as well as being applicable to those for which it is intended to be attached.

Deeming it unnecessary to enter into any description in detail of the construction in general of bedsteads, I will conne myself simply to a description of the construction of my clevis-clamp fastening and the mode or manner of applying the same to posts and rails to form a complete, steady, substantial bedstead fastening.

. The clevis like pieces c, 0, o, Fig. 1, are formed in strips from wrought iron, or metallic plates; say from an eighth of an inch (or upward) thick, to 2 or moreinches wide, according to width of rail and post; and in length according to required utility; and are bent at right angles flatwise of the metal. The distance between the, angles being in 'accordance with the thickness `of the post, less the thickness 0f thestrips of metal,

the eyes or slots `being formed near the ends of the clevis clamp, of required size to suit the wedge like keys a, a, a, Fig. 1. The clevis and keys being formed with flat planes, and right angled edges, are next fitted into the posts and rails; which fitting, is done by mortising two mortises, through the rail fronts d, d, Fig. 1, of the posts, the mortises conforming to the shape and size of the clevis-clamp, exactly observing, that the mortise must be sunk into the post also, the thickness of the metal so as that the clevis-clamp is let into the post, in order not to projecty above the plane of the post. This having been done, the rail or longitudinal beam is fitted to the clevis-clamp by letting it into the wood its thickness, and mortising through the rail, the required size of the eyes c, c, c, and keys a, a, a, Fig. 1, so that the keys can be driven through the top of the clevis and rail vertically and thereby drawing the posts and rails together flush as required, forming a substantial, simple, cheap, and effectual bedstead fastening. The detaching is done by knocking or` forcing upward against the keys.

Having` given a clear and succinct description of the Inode of construction, ap-- plication, and operation of `my improved bedstead fastening, what I claim as new and original with myself and desire to secure by Letters Patent of the United States, is as follows:

Disclaiming the invention of the clevis,

staple, and key or wedge as original devices,

I claim- The clevis clamp, a, together with the double mortised post, in combination with the key or wedge Z), through all of which is produced a compensating bedstead fastening, specifically as described, and as delineated by diagrams 1 and 2.

R. H. sT. JOHN.

Vitnesses CALVIN MARQUIS, GEO. FOSTER.

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