US1800792A

US1800792A - Safety attachment for ladders

Info

Publication number: US1800792A
Application number: US411139A
Authority: US
Inventors: Alf H Hansen
Original assignee: Individual
Current assignee: Individual
Priority date: 1929-12-02
Filing date: 1929-12-02
Publication date: 1931-04-14
Anticipated expiration: 1948-04-14

Description

April 14, 1931- A. H. HANSEN 1,800,792

SAFETY ATTACHMENT FOR LADDERS Filed Dec. 2, 1929 A itorney Patented Apr. 14, 1931 EED STATES ALF H. HANSEN, 0F ALLENHURST, NEW JERSEY SAFETY ATTACHMENT FOB. LADDERS Application filed December 2, 1929. Serial No. 411,139.

This invention relates to safety attachments for ladders and an object of the invention is to provide a device to take all strain and weight of scaffolding from the 5 rungs of the ladder, and apply the strain and weight on the stiles thereof.

A further object of the invention is to provide an attachment for ladders that keeps the ladder out from the wall and enables the 10 painter to place his ladder jacks and plank on the very top of the stile, giving the workman full benefit of the wall, with no interference with the latter sticking up above the plank and thereby eliminating ladder marks on the sides of the building being painted or otherwise treated.

A further object of the invention is to provide an attachment for ladders that can be laid on the roof over the ridgeboard, whereby the ladder will be secure and safe while painting roofs at street pitch, and furthermore to provide an attachment to prevent breaking of the rungs of the ladder, which causes most of painters accidents.

A further object of the invention is to provide, in a manner as hereinafter set forth, a device of the character referred to, which is strong, and simple, compact and durable, and thoroughly reliable for its intended purpose, very simple in its method of assembly, and comparatively inexpensive to manufacture and operate.

With the foregoing and other objects in view, the invention consists of a novel construction, combination and arrangement of parts as will be hereinafter more specifically described and illustrated.

In the accompanying drawings, there is disclosed an embodiment of the invention, but it is to be understood that changes, variations, and modifications, may be resorted to without departing from the spirit of the claims hereto appended.

In the drawings wherein like reference characters designate corresponding parts throughout the several views Figure 1 represents a fragmentary side elevation of a ladder resting against a wall and illustrating an adaptation therewith, of

the pres- Fig'. 8 is an elevation thereof. 5

Fig. 4 is a section taken substantially on the line 4- of Fig. 2.

Referring to the drawings in detail, 5 represents a building wall and 6 indicates the stiles of a ladder resting against the wall 5. The stiles 6 are connected together in spaced relation by rungs 7. As illustrated 8 indicates a plank that extends longitudinally along the wall 5, having a jack 9 engaged with the outer, longitudinal edge of the plank 8, the inner end of the jack 9 being detachably engaged with the rungs 7 of the ladder.

The inner longitudinal edge of the plank S is adapted to rest upon the attachment indicated generally at 10, which is formed in accordance with the present invention.

he attachment consists of a pair of U- shaped brackets 11, 12 which are adapted to be disposed about the stiles 6 of the ladder.

On the inner ends of the leg 13 of each bracket 7 are inwardly directed flanges 14 that restrict the opening between the

legs

13 and 15 of each bracket to prevent the said brackets from slipping off the respective stiles of the ladder. I

Projecting laterally from the flanged legs 13 of each bracket, there extend prongs 16 formed of a strapped strip of metal, bent to a substantially triangular shape. The base of the prongs 16 are rigidly secured to the legs 8 13 of the brackets 11, 12 while the apices 18 project laterally and are adapted to engage the wall 5.

A pair of brackets of U-shaped configuration 19, 20 are secured to the legs 15 and project therefrom to receive the opposite ends of a bar 21. The ends of the bar are threaded as at 22 to receive caps 23 so that the bar 21 will be prevented from sliding out of the clamps 19, 20. The inner edge of the plank 8 is adapted to rest upon the bar 21.

In the event the device is to be used in painting roofs, the sides of the prongs are disposed on the ridgeboard to support the adder in flush relation to the roof.

o I 30 It,

It isto be understood that by describing indetail herein any particular form of the invention, structure, or arrangement, it is not intended to limit the invention beyond the terms of the several claims, or the requirements of the prior art. a Having thus describ d my invention, What I claim as ne is:-'.-

' V v 1-. A device of the character referred to' 10 comprising a pair of U-shaped brackets hav-"i' ing inwardly directed flanges; on fone l'eg 50151:: each bracket, a laterally directed prong secured to the flanged leg of eaeh-bracket,- a bar extending between the brackets and a U- shaped bracket secured to the other leg of each bracket. for supporting theloar :therebetween.v 2.- Adevice ofthecharacter referredfltow comprising. a pairof .U-shaped brackets have ing" inwardly, directedpflangesg on one leg tof 0 7 each bracket, a laterally l directed prong se-J cured .to: the vflanged leg of each bracketj,: a: bar extending between the bra'cketsand a' U-- shaped bracket secured to the other leg on? eachbracket forzsupportinghthe bar there- -5 between, and means on. the ends ofthebar to I prexient .the same. from sliding. out vof the clamps: Y 1 v Q In testimony WhereofIaafiiX- my signature;

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