US1592499A - Ladder foot - Google Patents

Description

July 13 ,1926. 1,592,499

W. C. PADGETT LADDSR Foo'r Filed March 24, 1926 mumllhi.

Attorney vl l) v tion of one will suffice for both.

Patented July 13, A1926.

g y 1,592,499 UNITED sTATEs vParran'r'oi-rlcn.

WILLIAM C. PADGETT, OFIHOPATCONGBOROUGH, NEW JERSEY.

LADDER roo'r.

Application filed March 24, 1926. Serial No. 97,059.

This invention relates to ladder feet and has for its primary object to provide a 'device of this character which embodies novel features of construction whereby the legs oi' the ladder may be lengtl'iened in order to compensate for uneven surfaces upon which the ladder is desired to be placed, and whereby the ladder will be positively and effectively held in an upright position and prevented from sliding or falling when placed upon the most uneven surfaces.

A further object of the invention is to provide a ladder foot construction that is adapted for association with practically all forms of ladders and that when so applied will not be likely to become detached. therefrom.

Other objects will become apparent as the nature of the invention is better understood the same comprising the novel form, combination, and arrangement of parts `hereinafter more fully described, shown in the accompanying drawing, and claimed.

In the drawing, wherein like reference characters indicate corresponding parts throughout the several views:

Figure l is a fragmentary front elevation of a ladder of conventional construction, the legs of which are equipped with my improved extension feet.

Figure Q'is an enlarged side elevation of one of the legs with which is attached a foot constructed in accordance with the present invention, and l Figure 3 is an enlarged transverse section therethrough for more clearly disclosing the construction of the foot.y

Now having particular reference to the drawing, the ladder more clearly disclosed in Figure 1 comprises a pair of spaced legs 5-5 that are interconnected by the usual spaced rungs 6. In carrying out my present invention I connect to the outer lower side of each leg 5 a foot that is constructed in accordance with this invention and a descrip- The foot constitutes the provision of a relatively elongated strip of material preferably pressed steel or other serviceable material 7 that is of a width equivalent to the width of the ladder legs and that is formed throughout its length with screw holes in order that the same may be secured to the ladder legs through the medium of screws or `the like 8. The longitudinal edges of the strip 7 are so bent as to provide vchannels 9--9 within which are guided the opposite edges ot an extension plate 10, the lower end of whichr is bent outwardly at Lright angles tor providing a supporting foot.

Extending throughout substantially the entire length ot' the plate 7 are spaced openings 11 arranged centrally of the plate for receivingv the inner end of a spring controlled pin `12 that is slidably arranged at its inner end through a bossed opening 18 in the extension plate 10 adjacent the upper end thereof. y This pin 12 is yof T-shape as shown in Figure 3, and the opposite ends 'of the outer arm thereof areconnected to certain ends of rctractile coil springs 14e-111 that are mounted wit-hin protecting sleeves 15-15, the inner ends of which are threaded within openings in the extension plate 10 at .opposite sides of the openingl in said extension plate, while the inner end of said springs are anchored to cross pins 16-16 in the sleeves, as clearly shown in Figure 3.

It will thus be understood that by pulling' outwardly uponr the pin 12,- the inner end of the same will be disengaged from the openings 11 in the plate 7 thus permitting the sliding of the extension plate 10 within the channels of said attached plate and after the desired extension of the foot has been secured, the pin kupon release will engage within the proper opening 11. y

For bracing the extensionplate 10 of the particular foot being used, thereis provided aftwo part clamp 16 that is adapted to be secured to the lower rung ofthe ladder at the end opposite the extended foot as clearly shown in Figure 1. Onemember of said clamp is provided with a lateral ear 17 that is formed with an opening through which is arranged an angularly bent and threaded end oit' a brace rod 18 whichend is secured within the `opening .of the ear through reason of lock nuts 19. y This brace rod extends downwardly and outwardly beneath the side bar of the ladder to which is attac-hed the extended foot and at said lower edge is also bent laterally outwardly for engagement through one of the openings in the extension plate to be there secured by lock nuts 20.

Obviously when the other foot is extended, n l

the clamp 17 is reversed and arranged upon the opposite end of the lowermost rung. f

It will thus be seen that I have provided a highly novel, simple, fand efiicient form ot extension foot for ladders that is welladapted lor all the purposes heretofore designated, and even though l have herein shown and described the most practical embodiment` ot the invention With which am at this time familiar, it is nevertheless to be understood that minor elianges may be made therein Without. aiecting; the spirit and scope ol the appended claims.

Having thus described the invention, what I claim as new and desire to secure by lietters Patent is l. ln a Yloot `tor ladders, a relatively elongated metallic plate adapted Ytar attachment to a ladder legi; the opposite edges ot the plate being` so bent as to provide lon d: nal channels, an extension plate Within the channels oit the lirst nientie ned plate. a 'lm-shaped pin slidable Within an opening in. the extension plate and ad. ted

for engagement Within openings ol the nrst nientioned plate, sleeves secured lo the ens tension plate at opposite sides oic tl nin and retrattile coil springs secured iv in die sleeves and to the arms oit the pin for normally maintaining the sanie ivitliin thc openings of the plates.

ln a `foot for ladders.y a relatively efozr gated metallic plate adapted for a C ment to a ladder leg, the side edges of t:

plate being: bent back upon themselves to provide longitudinal channels, said plate having` a series of vertically spaced openings formed therein, an :derision plate slidable Within the ,longitudinal channels ot' the aforen'ientioned plate, the lower end of said extension plate being bent laterally to provide a ground engaging; toot, a substantially T-sliaped locking' pin having; its leg; portion slidable within an opening' in the extension plate and adapted i''or engagement Within one oi" the openings o't' tbe tiret nentioned plate, a pair ol" sleeves secured lo the extension plate on opposite sides ot said pin, the outer ends ol said sleeves being disposed adjacent the outer ends ot the ari s elil said T-shaped locking pin, a cross pin secured in eaeh sleeve adjacent the inner end thereof, and a retractile coil spring arranged within each sleeve, the inner ends of said springs being secured to the respective cross pins, the outer ends oi, the springs beine' secured to the outer ends o'l" the arms ol the T-sliaiied locking; pin whereby said T-sliaped locking; pin secures the slidable extension plate in any vertically adjusted posi ion.

ln tesliincnj," .vliereof l, affix my signature.

VILLIAM C. PADGETT.

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