US898973A

US898973A - Ladder attachment.

Info

Publication number: US898973A
Application number: US41311608A
Authority: US
Inventors: Edward John Curran
Original assignee: Individual
Current assignee: Individual
Priority date: 1908-01-28
Filing date: 1908-01-28
Publication date: 1908-09-15
Anticipated expiration: 1925-09-15

Description

UNITED! srgirns EDWARJJOH' CL'RILLY, OF ALTON, ILLINOIS.

LADDER ATTACHMENT.

Specification of Letters Patent.

Patented sept. 15,` 190s Application led January 28, 190'8. Serial No. 413,116.

, To all 11:71am it may concern:

Be it known that I, Enwaizn J. Cenizas, a f

ments and more particular to attachment for levelingr aA ladder when the ladder is being E used on uneven `ground, the object being to provide an attachment which is exeeuiingly simple and cheap in construction, and one which is very strong and durable vide a cap which is adapted to lit over the g juste( Another object of my invention is to prolower eins of the huh er, said cap being L which engage teeth formed on the ladder.

consists in the novel features of construction.

claims.

' In the drawing foiiiiing a part of this speeifieation:Figure 1 is a perspective inafter fully described and pointed out in the `locked in its adjusted position by sni'ings With these objects in view, the invention caps C which are provided with oppositel disposed springs l) on their exterior, whic are adapted to engage the teeth of the sleeves so that the sleeves will be locked into their adjusted positions after they have been ad-. iusted to suit the ground on which the ladder is to be used.

To prevent any danger of the springs yielding, whereby the ladder would drop, I )rovide the side of the cap C with threaded bosses, iii which are, mounted set-screws E adapted to be screwed into engagement with the sirings after the ladder has been adl It will he seen that I have provided an attachment which can be operated very quickly and one which is so constructed that it is im iossible for the sleeves to move after once adjusted.V

Havingr thus fully described my vinvention what I claim as new and desire to secure by i I .et-ters Patent iszcombination and :iiraiigeiiient of parts. here- ',said sleeves piovided wit view of the lower portion of a ladder showing i the application of in v improved attachment.

Fig. 2 is a vertical sectional view through the i same.

In thel drawing A indicates ladder. the side bars of-whieh are reduced at their lower ends, over which are Secured sleeves B b v screws B', the sides of the sleeves being formed with teeth as shown at B u on oppsite"sides, and mounted on these s eeves are The combination with a ladder having reduced lower ends, of sleeves secured over said ends bv screws 'having teeth formed upon opposite sides, of c: Ips mounted over i oppositely disposed springs normally held in engagement with the teeth of said sleeve, threaded bosses l i i l i formed on the sides of said caps and setsei'ews mounted in said bosses for engaging said springs.

Y EDXVARD JOHN CURRAN.

Witnesses:

FRANK A. LANAHAN, Biziocn'r CURRAN.