US7743A

US7743A - Bedstead-fastening

Info

Publication number: US7743A
Authority: US
Publication date: 1850-10-29
Anticipated expiration: 1867-10-29

Description

N. PEFERS, FHoTo-UTOGRAPHER. WASHINGTON u C FICE.

JOHN MORRISON, OF MCARTHURSTOWN, OHIO.

BEDSTEAD-FASTENING.

Specification of Letters Patent No. 7,743, dated October 29, 1850.

T0 all wiz/0m t may concern Be it known that I, JOHN MORRISON, of McArthurstown, in the county of Vinton and State of Ohio, have invented a new and useful Improvement in Bedstead-Fastenings; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings and to the letters of reference marked thereon.

The nature .of my invention consists in constructing a bedstead fastening by means of a triangular piece of flat iron the vertex of which is elongated and in which is out an ellipse and in the end of each arm, or of each of the other angles of the triangle is a hole, which piece of iron being fastened to the post by means of pins passing through the holes in each arm of the piece ofy flat iron, and by means of a screw, or pin having on it an eccentric, or cam, and passing into the rail at the outer extremity of the ellipse, the post is drawn firmly to the rail by turning the screw, until the cam presses against the piece of iron at the outerl extremity of the ellipse.

To enable others skilled in the art to make and use my invention I will proceed to describe its construction and operation: I make the bedrail A rectangular, and also the tenon B in each end of the rail A. The mortise C in the post D I make to correspond to t-he size of the tenon B. In the post D (on the side adjacent to the one in which is sunk the mortise C, and into which is inserted the tenon B ofthe rail) at about one inch from the side of the post into which the rail is inserted, and about one inch from the upper edge of the rail, I drive an iron pin E which is about one fourth of an inch in diameter and which is allowed to project from the post about one fourth of an inch. At about one inch from the side of the post in a straight line with the pin B, and about one inch below the lower edge of the rail I drive another pin F similar to the pin E, about one fourth of an inch in diameter, and proliecting from the post about one fourth of an inch. In the rail A at about four inches from the shoulder thereof, and on the side which is in the same plane of the pins E and F of the post, I sink a nut of iron H into which I screw or otherwise fasten (so that it may be turned around) an iron pin Gr the lower part of which is cut as a screw, to be screwed into the nut H, or else riveted into the nut so that it may turn freely.

Immediately above the thread of the screw, an eccentric or cam is constructed on one side of the pin which projects from the side of the pin about one fourth of an inch, in an oval or elliptical form. The head of this screw, or pin I make of such form that it may be easily turned with the fingers or by any other means. I then construct a triangular or forked plate of (either wrought or cast) iron I, having a hole K, and L in the end of each arm, in size to correspond with the pins E and F, the arms of the plate being spread apart sufficiently to admit of the insertion of the two pins E and F when driven into the post D. The vertex of the plate of iron I I make elongated and out of the middle of this part, I cut an ellipse N of suiiicient size to admit of the passage of t-he head of the screw or pin G. I make this iron plate I of such length that when the pins E and F of the post are inserted into the holes K and L of the plate, the outer eX tremity of the ellipse will just come to the edge of the hole in the nut H. So that the screw or iron pin G being inserted into the nut H, and the eccentric portion of it turned in the direction of the post D, and the triangular or forked plate of iron I being fastened to the post D by means of the insertion of the pins E and F through the holes K and L of the arms. The head of the screw or pin Gr will pass through the ellipse N. The outer extremity of the ellipse nearly touching the straight side of the screw or pin Gr. Then by turning the screw or pin G part of the way around, the eccentric portion of it is pressed against the outer extremity of the ellipse in such a manner as to draw the post and rail firmly together.

What I claim as my invention and desire to secure by Letters Patent is- The construction and application of a triangular or forked plate of iron made in such a manner as that it can be secured to its place, and draw the post and rail firmly together by means of an eccentric or cam, substantially as above described.

JOI-IN MORRISON.

Witnesses:

J. S. HAWK, E. A. SIssoN.