US139844A - Improvement in bedstead-fastenings - Google Patents

Description

C. WOLF.

Bedstead- Fastenings;

Pa'tentd June 10. 18 73 UNITED STATES PATENT QFFICE.

GALMAN WOLF, OF EooHEs'rEE, NEW YORK.

IMPROVEMENT IN BEDSTEAD-FASTENINGS.

Specification forming part of Letters Patent No. 139,844, dated June 10, 1873; application filed May 9, 1873.

To all whom it may concern:

Be it known that I, GALMAN WOLF, of the city of Rochester, in the county of Monroe and State of New York, have invented a certain new and useful Improvement in Bedstead-Fastenings; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same.

My invention consists in combining with the hook-fastening a notched eye and cam,

will be made, all as hereinafter described.

In the drawings, Figure 1 is an elevation of a portion of the rail and post of a bedstead, showing my improvement. Fig. 2 is an elevation of the double-hook fastening in the elevated position. Fig. 3 is a similar view of the single-hook fastening, but in the depressed .and locked position. Fig. 4. is a view of the key or wrench; Fig. 5, a view of the cap.

A is the post, and B the rail, of an ordinary bedstead. G is the stop, and D the hook, which forms the fastening. This hook is formed. with an .eye, a, which rests in a socket between the stop and the rail; and it may also be formed with two hook ends, 12 b, as shown in Fig. 2, or a single one, I), as shown in Fig.

3. These hooks engage with the ordinary locking-pins c c, passing across the slot or gain 10, which is formed in the post, and of sufficient size to allow the proper action of the parts. The eye of the fastening is formed with a camsurface, d, and with a notch or offset, 7, as clearly shown. In this eye rests the cam E, having a corresponding cam face, g, and shoulder h. The cam at each end has a journal, i, (Fig. 1,) which rests in a bearing in the wood and serves as the axis on which the cam turns. On the inner journal is a square key-stem, k, on which fits the socket l of the key G, by which the cam is turned. The end of the rail is provided with the ordinary dowels m m, (shown in dotted lines, Fig. 1,)

which fit in sockets of the post in the usual manner.

The operation is as follows: The hooks of the fastening are raised so as to pass over the locking-pins c c, and the key is then turned backward so as to carry the fastening back bodily, as shown in Fig. 3. This is accomplished by the strikingof the cam-face g against the surface at of the eye, and the hook-end b is consequently tightened upon the pin 0. This forms a firm and secure fastening, as the hook cannot be disengaged from the pin, nor can the parts be separated. by raising the bedstead, as the dowels will prevent that.

In disengaging the fastening, thetkey is turned back in the opposite direction, and the same action of the cam which forced the hook inward draws it outward again, so that it will release from the locking-pin, and it is then free to raise. As soon as this is accomplished, the shoulder hot the cam strikes under the oifset f of the eye, and throws the tion of the cam and eye, as above described.

I am aware that in the ordinary hook-fastenings a drawing-in and pushing-out action is given to the fastening by an eccentric, but the vertical raising of the fastening is not produced.

This device is very simple and cheap, and is perfectly secure. It also closes all the joints, so that bugs cannot enter the wood. It also prevents the entrance of water in washing.

To prevent any accidental'turning of the cam, a locking-cap, P, (Fig. may be hinged to a bearing, 8, which, encircles the part i.

This cap is provided with a square or taper; ing socket, a, which shuts down over stem k,

as shown.

Having thus described my invention, what I claim as new and desireto secure by Let-.

ters Patent, is-

The combination of the cam E with the In witness whereof I have hereunto signed fastening D, when said cam and the eye of my name in the presence of two subscribing the fastening are provided with the cam-faces witnesses.

g d, for producing an end movement, and with V CALMAN WOLF. the shoulders or ofi'sets h f, for producing a Witnesses: vertical movement, substantially as and for R. F. OSGOOD,

the purpose specified. HENRY M. THOMAS.

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