US1510461A - Ladder - Google Patents

Description

- 1,510,451 H. CORDES LADDER Filed March 13 1924 2 Sheets-Sheet 1 H. CORDES Get. 7, 1924- LADDER av k1 Filed March 13 1924 2 Sheets-Sheet.

HENRY GORDES, 0F SIOUX FALLS, SOUTH DAKOTA.

LADDER.

Application filed March 13, 1924-. Serial No. 699,005.

To all whom it may concern:

Be it known that I, HENRY Conons, a citizen of Prussia, Germany, residing at Sioux Falls, in the county of Minnehaha and Stateof South Dakota, have invented certain new and useful Improvements in Ladders, of which the following is a specification.

' This invention relates to certain new and useful improvements in ladders and the primary object thereof is-to provide a ladder which can be moved by the user from place to place without descending to the surface on which the ladder is supported.

A further object ofthe invention is to provide a ladder having similar sections and novel means for connecting the sections so as to allow the latter to each have universal movement and to latch same in any adjusted position thereof, as well as to permit the sections to be firmly supported on uneven surfaces.

A further object of the invention is to provide novel means for suspending a bucket or the like from the top of the ladder so as to be accessible from either side of the ladder.

The invention has still further and other objects which will be later set forth and manifested in the course of the following description.

In the drawings Figure 1, is a perspective view of the invention;

Figure 2, is an enlarged detail view, partly in section of one side of the connection between the sections;

Figure 3, is a view similar to Figure 2 but taken at right angles thereto;

Figure 4;, is a section on line 4- 1 of Figure 2, and

Figure 5, is a section on line 5-5 of Figure 2.

In proceeding in accordance with the present invention, each section of the ladder is constructed alike and is of generally inverted V-shape, having standards or side rails 1 provided with the usual rungs 2.

A casting is connected to the top of each section and has a stem or shank 3, the lower end of which is formed with a flared socket 4 which latter is of rectangular cross-section. The upper end of the shank 3 is formed with an integral ball head 5, the junctural points of the head and shank being formed with an undulating portion 6, which is somewhat of corrugated form, presenting alternating depressions and swells.

As depicted in Figures 2 and 5 of the drawings, the upper ends of the stiles or rails 1 are mitered at 7 so as to abut and closely fit within the sockets l, being held fixed therein by bolts 8. i

The balls 5 are received within the sockets 10 of a twin-socket housing 9, the sockets 10 of which are formed with swells and depressions 11, corresponding to the swells and depressions 6 of the stems 3, the swells and depressions of the stems being received in the depressions and swells respectively of the sockets, whereby to latch the parts in any position to which same may be adjusted.

The connecting part or web 12 of the housing is formed with a depending apertured ear 13 to receive a hook 14, dotted lines Figure 1, by means of which a bucket 15 maybe suspended between the two ladder sections and rendered accessible from either section. Latches 1515 may be employed to removably latch the sections.

From the foregoing it will be apparent that the ladder sections are permitted to have universal movement in the respective sockets of the twin-socket connection and are latched in position, and that due to such. universal movement of each section, the lad-- der will be firmly supported on uneven surfaces.

In operation, the user places one foot on the desired rung of one section and the other foot on the corresponding rung of the other section so that his body is in alinement with the space between the sections. If he desires to move the ladder without descending to the floor, he imposes his weight on the section facing the direction in which he wishes to move, and then with his foot draws the other section toward the first section, and by then transferring his weight to the second section, with his foot moves the first section away from the second section. In this manner the ladder may be moved in various directions.

What is claimed is 1. In a ladder, a pair of similar sections, each having stiles tapering upwardly and connected by a series of rungs, the upper ends of the stiles being mitered and abutting, members having shanks formed with depending flared sockets to conformably receive the said mitered ends of the stiles therein balls on the upper ends of the shanks, bolts extending through the sockets and said stile ends to fixedly connect the parts, said shanks being formed with alternating swells and depressions adjacent the bases of the balls, and a twin-socket con nection for the sections, the balls being received in the respective last named sockets, the circumferential edges of the last 'nalned sockets being r"ormed with swells and depress/ions for engageinentwith the respec* tive depressions and swells of the ball shanks, said connection beingformed with a depending apertured ear disposed inthe space between the twin sockets for support of a bucket or the like I H I,

, a de a p rQef im l i' ei each haying stiles tapering I upwardl and connected bya series of rungs, thenupper ends of the stiles being mitered and abut: ting, in'embefs having shanks. formed with depending flare-d sockets to confoiniahly rec'eiv'e thesai'd init'ered ends of the stiles therein balls on the upper ends of the shanks, bolts extending through the sockets and said stileends to 'fikedly @aneet the parts, said stem being formed with altei'nzit i11 swells and depressions adjacent the bases of the balls, and a twin-socket co nectioh for the sections, the balls bein'rr receiv'ed in the respective last named soc k'ets,

the circi'in ferential'edges of the nfamed sockets being formed with swells and depressions for engagement with the respective depressions swells 0f the ball shanks. V

3. In a ladder, a pair of substantially sirnilar sectionseach of substantially inverted V-"shape, a hall on the apex of each section, and a twin socketconnection for the balls to allow each 05E the latter to have i'mitei s al 'moVeInent. 4 1 dfd .-5 P ir f llb fi fi 3 ,7 r t ally verted Yshalie, a ball on tl ea iex offefaich siini'l'an sections we; of ,subst section, a twin-socket coniriectidii for ha i balls as nice each of the meme un versal mwemenhami. me -la fif c n' In any edi'i s sl i li a p -ii .jQ- ini'ilan seetioh's, each er eta e1 ed h i a-bal' Qni e .c section, a twin sjocket connection fo ba l to @1 ht e fi w ll 'j u l t s me e i th. b l s. and. $769 li ll an pi' es f e t c e 1: 1 itch the se uel-1' n any pdsi we in which semeiea bemoved.

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HENRY 'ooRnEs.

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