US1555614A - Step construction - Google Patents

Description

Sept. 29, 1925. 1,555,614

0. M. WAGGONER ET AL STEP CONSTRUCTION Filed April 5, 1923 n n n INVENTOFE.

Patented Sept. 29, 1925.

UNITED STATES PATENT OFFICE. j,

CLAUDE M. wAeeoNEn, or sAN BnnNARnrNo, AND ALBERT J. TINGLEAII, or Rive sins, CALIFORNIA, ASSIGNORS OFONE-THIRD T0 EDWARD H. CURRIER, or SAN BERNARDINO, CALIFORNIA.

STEP CONSTRUCTION.

I v 7 Application filed April 3, 1923; Serial No.629,612.

To all whom it may concern:

Be it known that we, CLAUDE M. \VAG- GONER, a citizen of the United States, residing at San Bernardino, in the county of San Bernardino and State of California, and ALBERT J. TINoLE-nr, a citizen of the United States, residing at Riverside, in the county of Riverside and State of California, have invented certain new and useful Improvements in Step Constructions, of which the following is a specification.

This invention relates to improvements inladder construction and has for its object to provide a secure means for holding the steps of step ladders.

Another object of the invention is to provide a step ladder having sheet metal se curing means for the ends of the steps thereof. c

A further object of the invention is to provide a sheet metal step support and securing means therefor.

With the above and such other objects in view as may hereinafter more fully appear, we have invented the device illustrated in the accompanying drawings, in which:

Figure 1 is a horizontal section through one of the side rails of my improved ladder on the line 11 of Fig. 2, showing a portion of one of the steps and the means for securing the step to the side rail,

-Fig. 2 is a vertical section taken substantially on the line 2-2 of Fig. 1,

Fig. 3 is a perspective view of one of the socket members, and

Fig. 4 is a plan view of the blank used in forming the socket member shown in Fi 3.

ike reference characters indicate like parts throughout the following specification and in the several views in the drawings in which 1 indicates a side rail of the ladder to which the step 2 is secured by means of the socket member 3. .On the drawing only one of the side rails is shown and one of the steps is shown as secured to it. It will be understood that the step shown is only one of a plurality of steps which are secured between two similar side rails, one of which is indicated at 1. The socket, designated at 3, secures one end of the step 2 to the side rail and is formed of a pair of socket members 5 and 6 each having an U-shaped outer end 7 and being formed of a sheet metal having an extension strap 9 returned upon sald body member to form said U-shaped socket, said extension having an opening 10, adapted to align with the opening 11 in said body member to receive a bolt 12, which projects through said openings 10 and 11 and similar openings in the member 6 and through an aperture 13 in the step 2, the terminals 1 1, 15, 14: and 15 of said members 5 and 6 being held together by said bolt 12, around the end 16 of said step. A washer 12 is inserted under the nut of the bolt 12. Each of the members 5 and 6 are provided with short extensions 17 which are bent at right angles to the body portions 8 and provided with apertures 18 through which bolts 19 and 20 project, said bolts also extending through apertures in the side rail 21 of the step ladder and through apertures in the opposing ends of the yoke washers 22. Washers 19 are placed under the nuts of the bolts 19 and 20. Each of the members 5 and 6 are secured to the side rail by a bolt 19 or 20 and centrally connected to gether by the bolt 12, thus very substantial. securing sockets for the ends 16 of the steps are provided said ends being held securely in said sockets by said connecting bolt 12.

The yoke or tie washer 22 connecting the heads of the bolts 19 and 20 prevents any rotatable movement of the washer and thus prevents wear of the washer upon the outer surface of the rail 1.

Having described our invention that which we claim to be new and desire to procure by Letters Patent is:

1. A step ladder construction comprising a side rail, a step fitting against the side rail, a pair of socket members connecting the step to the side rail, each socket member comprising a sheet metal body triangular in plan and bent to form a U-shape to fit the step edgewise, the terminals of the U-shape having aligned bolt holes and the body having a short extension bent at'right angles to fit against the side rail, the socket members being placed on opposite side edges of the step with the step in the U-shapes and the terminals overlapping, a bolt inserted through all the aligned openings and through the step, and bolts inserted through the short extensions and through the side rail.

body member 8 triangular in shape and 2. A- stepladder construction comprising a siderail; a flat step'fittmg a'gzunst the s1de rail, :1 pair of socket members securing the portion adapted to engage the side of the step, a top portion adapted to engagethe top of the step and a bottom portion adepted to engage the bottom of the step, said-top r and bottom portions extending approximately .halfway acrossr the-step, means for securing the top portions *of Lt-he. vsocket members together and to the step, means for secnringthe bottom portions of the socket members to each other end tothe stepyand means for secur ng each, socket member to the side rail."

In. testimony whereof we affix our signatures.

. CLAUDE M. VVAGGO'NER.

ALBERT J. TINGLEAF.

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