US1920552A - Detachable safety ladder step - Google Patents

Description

g- 1, 1933. c. M. DOLLERHIDE 1,920,552

DETACHABLE SAFETY LADDER STEP Filed Dec. 26, 1929 I N VEN TOR.

Patented Aug. 1, 1933 a g Y I 1,920,552

UNITED STATES PATENT OFFICE DETACHABLE SAFETY LADDER STEP Charles M. DollerhidaDavenport, Iowa Application December 26, 1929. Serial No. 416,547.

3 Claims. (01. 30434) One object of this ladder step is to relieve the rung of the ladder thus greatly facilitating the strain due to limited bearing of a ladder rung operation of adjusting the step from one rung of under the feet ofa person standing upon a ladder the ladder to another. It is not essential to the for an appreciable length of time. invention that the extremity ('7) be formed as an 5 Another object is to distribute the weight of enlargement of the rod and it will be understood 60 the operator upon the elements of two ladder that the end of the rod may be turned back upon rungs most advantageously placed to support such itself or any other convenient method used to weight, namely, near the side pieces of the ladder accomplish the object of enlargement. thus reinforcing the ladder .itself. Having now, described the construction of my.

To accomplish these objects, use is made of a invention, I claim, 65 metal plate having the ends and farther edge 1. In a detachable ladder step, a metal plate turned downward to form stiffening flanges, the with'depending end flanges each provided with a nearer edge being turned downward to hook over pair of perforations, rods having upper hook elethe ladder rung. The nearer ends of the end ments and having lower ends formed in substanflanges together with the hook element of the tially U-shape angularly disposed relatively to 70 nearer edge effectually prevent slippage of the the plane of the upper hook elements, said rods step in the horizontal plane. The farther corners assembled in one of the perforations of each end of the plate are suspended from the next higher flange of the plate and-the prongs of said hook rung of the ladder by rods of metal engaged in elements being adapted to engage in the other holes pierced in the end flanges of the plate. perforation of each of said flanges when said step The lower ends of the rods are formed in U- is in afolded position. shape angularly disposed relatively to the plane 2. In a detachable ladder step, a metal plat of hooks at the upper ends of the rods. formed to engage over one rung of a ladder, a

These practical features of my invention are perforated. flange depending from each end of shownin the accompanying drawings wherein said plate, rods suspending the farther corners Fig. l is a View of the detachable safety ladder of the plate and having hooks at one end adapted step as usually applied to a ladder. Fig. 2 is a to engage a, higher rung, the other ends of the view showing the step lifted as in movement from said rods formed in U-shape angular-1y disposed one rung of the ladder to another, and with the with reference to the plane of the hooks of said hooked upper ends of the rods conveniently rods, and engaged in the perforations in the end gathered in one hand. Fig. 3 is a view of theflanges of the plate, and means for preventing the bottom of the plate with the rods compactly passage of the lower extremities of the rods folded for storage or transport. through the perforations of the flanges.

The numeral 1 indicates the plate; 2 is a de- 3. In a detachable ladder step, a metal plate pendingend flange of the plate; 3 are rods with with depending end flanges each provided with 0 hooked upper ends 4 and U-shaped lower ends 5. a pair of perforations, rods having upper hook 6 shows a secondary perforation in the end elements and having lower ends formed in subflange of the plate to admit theshort leg of the stantially U-shape angularly disposed relatively rod hook in folded position. 7 is a button or ento the plane of the upper hook elements, said rods largement of the lower end of the rod to prevent assembled in one of the perforations of each end that end from pulling through the flange of the flange of the plate and the prongs of said hook plate. The formation of the lower ends (5) of elements being adapted to engage in the other the rods (3) is so proportioned that as the step is perforation of each of said flanges when said step lifted as shownin Fig. 2, the hooks (4) naturally isin a folded position. i assume the positions necessary to engage over a CHARLES M. DOLLERI-IIDE.

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