US1077995A - Bed-rail joint. - Google Patents

Description

E. J. OLSEN.

BED RAIL JOINT.

PPLIGATIoN FILED MAR. 29

Patented Nov. 11, 1913.

3 1H :J IIMIIWHH/ /vJ 5. 8 w, lili M m 7A m 1 wwf@ taken on the line w3 w3 of Fig. l; and Fig. 4

4'i' on each side ofthe cent-ral flange 6.

kUNITED STATES PATENT OFFICE. y

EINAR J'. OLSEN, OF MINNEAPOLIS, MINNESOTA, ASSIGNOR 0F ONE-FO`LTI{.T T:IY TOv GEORGE GRQSCHEN, Oli' MINNEAEQLIS, MINNESOTA.

BED-RAIL J OIN T.

Specification of Letters Patent. Patented NOV,` 11, 1913, Application led March 29, 1911. Serial No. 617,545.

To all 'Lo/wm t may concern.'

Be it known that I, EINAR J. OLsEN, a citizen of the United States, residing at inneapolis, in the county of Hennepin and State of Minnesota, have invented certaink new and useful Improvements in Bed-Rail J oints; and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention has for its object to provide an improved bed rail joint and, to this end, the invention-consists of the novel devices and combinations of devices hereinafter described and dened in the claim.

The invention is illustrated in the accompanying' drawings, wherein like characters indicate like parts throughout the several views.

Referring to the drawings, Figure l is a plan view of the improved device applied to a bed post and rail, some parts being broken away and other parts shown in section; Fig. 2 is a view in side elevation of the parts shown in Fig. l, with some parts broken away and the exposed parts shown in section; Fig. 3 is a transverse vertical section bearing lugs 9 for coperation with the bearing shoulders 5. The inner faces of the prongs 8 adjacent to their crotch are reversely curved both vertically and horizontally to form central bearing surfaces 10 adapted for engagement with the wedge-like bearing surfaces 7 on the coupling head 3.

From the foregoing description, it will be noted that the prongs of the bifurcated coupling head 4 have' a three-point contact with each side of the coupling head 3 and, further, by this arrangement, the castings comprising the coupling heads 3 and 4 need not be very smooth as any unevenness therein would not affect the ment of said heads.

When the improved device is used in connection with wooden beds, the coupling head 3 will be provided with a llange through which wood screws may be passed to secure the same to the bed post.

The above device, while extremely simple, is thought to be highly eicient for the purpose in view.

What I claim is:

The combination with a bed post and a bed rail, of inner and outer coupling heads, one on said post and the other on said rail, one of said coupling heads having a centrally located, horizontally flaring crotch and laterally spaced, inwardly projecting and vertically extendedy bearing flanges, said crotch having a pair of opposite, inwardly bulged bearing surfaces, and the other of said heads having a rib and being provided, on each side of said rib, with vertically extended bearing lugs that are engageable with the bearing flanges of the first noted head, said rib having bearing surfaces engageable only with the bulged bearing surfaces of said crotch and tending to draw the bearing flanges of the first noted head downward and onto the bearing lugs of the other oflsaid heads, under increased load on said rai In testimony whereof I allixmy signature in presence of two witnesses.

EINAR J. OLSEN.

1s a transverse vertical section taken on the line m4 :r4 of Fig. l.

The numerals 1 and 2 indicate, respectively, a portion of a bed post and a portion of a bed rail detachably connected by means of my improved join The improved joint comprises an inner coupling head 3 cast or otherwise secured on the bed post l and an outer coupling head 4 cast or otherwise secured to the bed rail 2. n each side of the coupling head 3 is formed a pair of vertically alined and laterally extended bearing shoulders 5. The outer vertical end of the coupling head 3 between the bearing shoulders 5 is contracted to form a central flange 6. This fiange 6 tapers vertically upward, as best shown in Fig. 3, and is oppositely beveled in cross section to form wedge-like bearing surfaces Witnesses:

ALICE V. SwANsoN, HARRY D. KILeoRE.

The coupling head 3 is bifurcated and the prongs 8 thereof have their ends bent laterally inward to form vertically extended Washington, D. C. E

interlocking engage-

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