US1473443A - Stepladder - Google Patents

Description

Nov. 6, 1923. 1,473,443

A. L. ROGERS STEPLADDER Filed April 21, 1922 lilillll PatentedNov, 1923. V

anonzo L. scenes, or WAL ERTONQINDI NAQ f s'rErLADnEn; a

Application fiiee a r'fl 21, 1922., Serial Nessa-seek} To all whom z't may concern.

Be it known that I, ALoNzo L. ROGERS, a citizen" of thev United States, residing at town of Nalkertom-inrthe county of St.-

Joseph andStateof Indiana, have invented certain new and useful Improvements in Stepladders, of whichuthe followinglis'j a specification; M p

My invention relates to improvementsin step ladders and has particular .referen'ceto the back or supporting leg structure thereof. An important object of the invention is to provide 'a back or, leg structure which is powerfully braced to render the same stiff and strong, without complicating thev construction. f r V 7 Other objects and advantages of themof the following description.

part of this specification andin which'like" numerals are employed to designate like parts throughout the same,

Figure 1 is a perspective view of a ladder embodying'my invention, and,

Figure 2 is an elevation of the rear side of the back or leg structure. I

In the drawings, whereinfor the purpose of illustration is shown a preferred embodi:

ment of my invention, the numeral 5 designates the front of the step ladder, which. front may be of any well known-or'p'referred construction, embodying'legs 6, con nected by rounds (T The invention is in no sense restricted tothe use of the particular form of frontshown, asthe backjembody ing the invention, may be used in connection; with various-typeset fronts. j

g The back or leg structure embodies legs 8', connected at spaced intervals by horizontal bars 9. The upper ends ofthe legs 8 "are aperturedto pivotally receive the uppermost round 10, whereby the front and back of the ladderare connected. The front, andback' step m y be- Prevented fam' s' g h ll y a 5 suitable means, and forthepurposefof illustration,

rope 11' connectingithese parts.

I have shown a fiexible element l l To-stifienandstrengthen-theback orileg I l i structure, I provide longitudinally'curved truss braces 12', arranged inwardly of the :legs, and connected" with the intermediate V bar 9', at 18. ,Therupperfand lower ends of V these truss braces contact with the legs 8,.

and are means,fa

secured thereto'zby any suitablefi ndfor-the purpose of illustration, I'

haveshown straps rlet, which surround the ends of'the truss braces and thelegs, and see I .2 curely connectthem. If desired, theends of} the truss braces may be further connected withthe vention will be apparent'duringtm course so i legs 8 by means ,of nails or the like. I

It is to be understood thatthe form of my. 1 Y V invention herewith shown and describe-dis In the accompanyingdrawings forming a of my invention claim.

. Havln claim orthe scope of the subjoined I g thus described my inventiomI 7'0 V A step ladder comprising front, and a back, pivoted to said front, said back comprising legs, spacedtransversebars-disposed upon the edges of saidlegs'and connected therewith, longitudinally curved truss braces arranged between-'saidl'egs and disposed-in the plane of said legs with their edges-substantially parallel with the edges of the legs, I the ends of the; braces. contacting fwith the I inner faces ,of'the legs, means for connecting the intermediate transverse bar with thein- I p .'t'ermediatefportions; of said braces, and

straps. surrounding the ends of the" braces and the legs; f In testimony "whereof I afiix: my, siguature; j V

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