US2452455A - Ladder attachment - Google Patents

Description

0d. 26, 1948. GRAHAM 2,452,455

' LADDER ATTACHMENT Filed July 25; 1945 6( IN V EN TOR. $40 8 1/ ATTORN EY Patented Oct. 26, 1948 LADDER ATTACHMENT Thomas E. Graham, Oklahoma City, Okla., as-

signor of one-third to Loyal J. Miller, Oklahoma City, Okla.

Application July 23, 1945, Serial No. 606,611

1 My invention relates to brackets 'to be attached to ladders, and more particularly to ladder brackets which provide platform space, and will act as a support for scaffolds. I

The prime object of the invention is to pro- 5 vide a ladder bracket which may be supportably attached to any usual ladder, and when so attached, will provide a standing platform for a worker.

Another object is to provide an article of this class, which may be attached one to each of two spaced leaning ladders, and when so attached, the two will act as a support for the ends of two scaffold boards.

A further object is to provide an article of this formed into the completed article merely by proper bending.

Further objects will be apparent from the following description when taken in conjunction with the accompanying single sheet of drawings,

wherein:

Figure 1 is a diagrammatic view of two usual ladders leaning against a wall, and showing in perspective, one article of the invention operatively installed upon each ladder; and

Figure 2 is a perspective view of the device operatively installed upon a usual rung-type ladder. Like characters of reference designate like parts in the figures wherein they occur.

In the drawings:

The reference numeral l indicates a vertical 40 wall aaginst which are leaning the upper ends of two spaced ladders 2. The ladders are of usual type, each consisting of parallel side members 3 between which are rigidly mounted vertically spaced horizontal rungs 4. I

The article of the invention is adapted to be installed upon and to be supported by the rungs 4 of the ladder, and consists of the following described integral parts or portions.

A horizontal fiat upper platform III; a similar lower platform II; and a straight frame member or connector I! attaching the two platforms rigidly together in spaced relation. The platforms l0 and II are substantially identical, but extend horizontally from opposite sides of the frame 1 Claims. (Cl. 248-238) member I 2, andthe outer end of each is provided with two arcuate and downwardly extending hooks l3. In the preferred embodiment shown, the platforms are shown as having their outer portions bifurcated by a V-shaped notch l4, but if desired, the notch could well be eliminated, and the hooks I 3 of each platform could extend entirely across the platform.

The article is installed by merely engaging the hooks l3 over two rungs 4 of the ladder, with the frame member l2 passing through the ladder adjacent an intermediate rung. The frame member I2 is provided with a hook l5 for engagement over the intervening rung, as best shown in Fig. 2.

When thus installed, the four hooks l3 and the single hook l5 act to prevent any rocking or swinging movement of the device. The platform Ill may be used as a standing or sitting surface for a workman, and the lower platform I I may Q be used to support working materials such as paint containers, caulking material, and the like.

When usedas a, scaffold support, one of the devices is installed upon each of two spaced ladders (Fig. 1), and a board l6 may then be supported by the two. The upper platforms are each equipped with an upstanding lug or flange I! to prevent lateral slipping of the board.

Obviously certain modifications of the article could well be made without detrimentally affecting its efficiency, and without avoiding the principle upon which it is constructed nor the prin-' ciple upon which it functions, and I therefore do not wish to be limited to the specific embodiment shown and described herein, further than I am limited by the scope of the appended claims.

While not so shown in the drawings, the hook I 5 and the lug I! could well be cut from the body of the frame member I 2 and the platform, respectively. This would permit the entire article to be die-stamped from sheet material at a. single operation.

I claim:

1. As an article of manufacture, a unitary structure including? two vertically spaced horizontal platforms, the upper one partially overlying the lower one; a connector extending between opposite ends of said platforms and rigidly holding them with their upper surfaces in parallel relation; a depending hook at the free end of each platform; and an outwardly extending downwardly projecting stabilizing hook intermediate the ends of said connector.

2. Structure as specified in claim 1, and an upstanding flange carried by the connected end of the upper platform.

3 4 3. As an article of manufacture, a unitaerg' UNITED STATES PATENTS structure, including: a. substantially z-shap N element of rigid construction, its horizontal porgifi gg g g tions constituting platforms; a dependi g adde 5391183 m 1895 engaging hook at the free end of each horizont l 5 754427 copeman Mar 1904 P0115100; and an outwardly extending vwnw rdly r 9 0 5 5 Levander Jun'e 1910 projecting ladder engaging hook intermediate the 1 245953 0Com}, "1"" Nov 1917 ends of the slanting portion of said element. 3 4 Holden "Sept 1915 4. Structure as sp cifled in claim 3, and an- 1925 upstanding flange carried by the connected, end 10 I of the upper platform portion. FOREIGN PATENTS THOMAS E. GRAHAM. Number country Date 10,237 Great Britain Ma 23, 1895 REFERENCES CITED 201,330 Great Britain M22, 1923 The following references are of record in the 15 file oi this patent:

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