US1916208A

US1916208A - Extension ladder

Info

Publication number: US1916208A
Application number: US591870A
Authority: US
Inventors: Diou Julian
Original assignee: Individual
Current assignee: Individual
Priority date: 1932-02-09
Filing date: 1932-02-09
Publication date: 1933-07-04
Anticipated expiration: 1950-07-04

Description

J. DIOU EXTENSION LADDER July 4, 1933.

Filed Feb. 9, 1932 E u l? a aulva. ,Ej 188 M f "w/ En H/ n.. iam. f /a 99H ,8

INVENTOR w v/ N m U J ATTORNEY Patented July 4, 1933 UNiTED STA rarezas JULIAN DIOU, OF NEWARK, NEW JERSEY ExTnNsroN LADDER Application filed 1lliebruary 9, 1932. Serial No. 591,870.

This invention relates to extension ladders and it is particularly applicable to fire engine ladders.

vOne of the objects of the invention is the provision of means on an` extension ladder for safely securing a person to the ladder and at the same time permitting him to move up and down the ladder, and sidewise to either side and also away from the ladder with his arms free to work.

YOther objects of the invention will be appreciated from a reading of-the followingk speciiication.

The invention will be fully and comprehensively understood from a consideration of the following'detailed description when read in connection with the accompanying drawing which forms part of the application with the understanding, however, that the improvement is capable of extended application and'is not confined to the exact showing of the drawing nor to the precise construction described and, therefore, such changes and modiiications may be made therefrom as do not affect the spirit of the invention nor exceed the scope thereof as expressed in the appended claims.

In the drawing:

Fig. 1 is a fragmentary front elevation of an extension ladder embodying one form of my invention. i

Fig. 2 is a vertical section taken on the line 2-2 of Fig. 1, looking in the direction of the arrows; and

Fig. 3 is a horizontal section taken on line 3-#3 of Fig. 1, looking in the direction of the arrows. A

Referring to the drawing for a more detailed description thereof, the extension lad-` der comprises

ladders

5 and 6 slidably connected to each other in the usual manner by retaining means 7. Telescoping

members

8 and 9 are secured to the rungs of the

ladder

5 and 6 respectively, said telescop'ing members being U-shaped with'inwardly turned edge portions 8a and 9a, respectively, said edge portions being spaced from each other to form openings 8?) and 9b, respectively, through which extends a link 10 pivotally connected at 11 to a link 12, said link being secured to a helical spring 13 which is fastened to a loop 14 adapted to go around the body of a person on the ladder, said loop being adapted to be opened and closed and provided with releasable holding or locking means 15 of any suitable or preferred construction. The link 10 is secured to a roller 16 which is adapted to roll on the

telescop ing members

8 and 9 within and in contact with the same so that the person on the ladder may freely move up and down the same. The pivotal connection between the

links

10 and 12 allows for movement of the person to either side of the ladder while the spring 18 permits the movement of the person away from the ladder. l

Before going up the ladder, the person inserts the roller '16 in position within the member 8 and on stepping on the ladder to come down, as a fireman, for example, would after l" coming out of anupper floor of a building, the roller is inserted in the upper telescoping member 9.

It is obvious that the device of my invenj tion allows a person on the ladder free use of slidable relative to each other and secured "n one to each of the ladders and means slidable relative to said telescoping members and held thereby and adapted to be secured to the body of a person on the ladder.

2. An extension ladder including ladders slidably connected, members slidable on each other and secured one to each of the ladders, means adapted to be secured to the body of a person on the ladder and means for slidably securing the last mentioned means to said slidable members.

3. An extension ladder including ladders slidably connected, members slidable on each other and secured one to each of the ladders, means adapted to be secured to the body of a person on the ladder and means, including a resiliently extensible member, for slidably securing the last mentioned means to said slidable members. y

4. An extension ladder including ladders other and secured one to each of the ladders, means adapted to be secured to the body of a person on the ladder and means, including a roller adapted to run on said slidable members, for slidably securing the last mentioned means to said slidable members.

vIn testimony whereof I hereby allx my signature.

JULIAN DIOU.