US2448350A - Ladder bracket - Google Patents

Description

C. L. BROWN LADDER BRACKET Aug. 31, 1948.

v2 Sheets-Sheet 1 Filed Nov. 24, 1945 Inventor BRUWN,

Attorneys LADDER BRACKET Filed Nov. 24, 1945 v 2 Sheets-Sheet 2 Inventor CECIL L.BROW1V,

Patented Aug. 31, 1948 ITED-sures PATENT OFFICE- Cecil L. Brown, Chattanooga, Tenn. Application November 24, 1945, Serial No. 630,590

space-d relation from the edge of a roof to pre- Vent injury to the gutter or eaves andalso to provide means whereby scaffolding or platforms may be supported on the ladder.

An important object of the present invention is to provide a ladder bracket of this character embodying means for securing the bracket in vertically adjusted position on the side rails of the conventional form of ladder and including inwardly projecting arms having roof-engaging shoes pivotally mounted thereon and adapted to rest upon a roof to support the ladder in spaced relation from the edge of the roof, to thus protect the eaves or gutter from injury by the ladder.

A still further object is to provide a device of this character of simple and practical construction which may be easily and quickly applied to a ladder of conventional construction without the necessity of making any changes or alterations therein, and at the same time embodies a strong and safe construction which is relatively inexpensive to manufacture and otherwise well adapted for the purposes for which the same is intended.

Other objects and advantages reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming part hereof, wherein like reference numerals refer to like parts throughout, and in which Figure 1 is a side elevational view,

Figure 2 is a top plan view, with the bracket arms removed,

Figure 3 is a sectional view taken substantially on a line 3-3 of Figure 1,

Figure 4 is a side elevational view of one of the locking wedges with parts broken away and shown in section,

Figure 5 is a fragmentary rear elevational view,

Figure 6 is an enlarged front elevational view of one of the bracket arms,

Figure '7 is a top plan view of one of the slides for mounting the bracket on the rail of a ladder,

Figure 8 is a view in elevation of the guides for one of the braces of the bracket arm,

Figure 9 is a perspective view of one of the pivoted roof-engaging shoes, and

Figure 10 is a longitudinal sectional view thereof.

Figure 11 is a fragmentary view in side elevation illustrating the use of the invention as a support for scaffolding.

Referring now to the drawings in detail, where- '1 Claim. (01. 228-61) in, for the purpose of illustration, I have disclosed a preferred embodiment of the invention, the numerals 5 and 6 designate a pair of channel-shaped slides adapted for slidably mounting on the rails 1 and 8, respectively, of a conventional form of ladder, the slides being connected to each other at their rear edges behind the rails by means of a plurality of transversely extending, vertically spaced slats 9.

A channel-shaped socket member In is welded or otherwise suitably secured to the slides 5 and 6, or integrally formed therewith, if desired, and extends vertically on the outer side of each of therailsfiandl. I

A brace H constructed of flat sheet metal in cludes a vertical portion I2 slidably mounted in the socket I0, and a horizontal portion l3 which projects outwardly at the side of the ladder.

A bracket arm I4 has its lower end welded or otherwise suitably secured to the lower portion of the vertical member l2 of the brace II and extends upwardly through an opening [3a at the end of the horizontal portion I3 of the brace in an outwardly inclined direction and terminates in a substantially horizontal, inwardly projecting end portion I! which terminates behind the ladder.

A shaft l6 extends transversely through the inner end I5 of the arm l4 and on which is pivotallymounted a shoe [1.

The shoe I1 is of box-like construction having its top and bottom open and a U-shaped extension l8 at one end in which the end 15 of the arm H is inserted.

A plate l9 projects horizontally rearwardly from each of the slides 5 and 6 and through the rear portion of which a transversely extending rod 20 is inserted and positioned behind the ladder.

A locking dog or wedge 21 is pivotally mounted on the rod 20 immediately behind the respective rails I and 8, each of the locking dogs having a curved front edge 22 adapted for movement into and out of frictional wedging engagement with the rear edge of the ladder rails, and connected at their rear edges by a cross bar 23 for uniform swinging movement, the cross bar being provided with an eye 23a each end thereof for attaching a. rope 23b to either eye to swing the dogs out of locking position. A coil spring 24 connects the upper edge of the dogs with the rear of the respective slides 5 and 6 to urge the dogs upwardly into their locking position. The rope 23b is designed to be pulled upwardly to swing the locking dogs 2| out of locking position.

in the operation of the device, when the bracket is desired to support the ladder in outwardly spaced relation with respect to the gutter 25 at the edge of a roof 26, the slides 5 and 6 are placed over the upper ends of the rails 1 and B of the ladder and moved downwardly thereon into .a position immediately below the gutter 25 as shown to advantage in Figure 1 of the drawing. The slides are then locked in position by the dogs 2 l.

The brackets l I are .then placed in the sockets I!) so thatthe .arms 14 will project ,rearwardly in a mannen-so that'sltheshoes .1 hat the rear-e s of the arms will lie flatly on the roof 26 and the ladder is thus supported outwardly from the gutter 26 to prevent injury to the gutter.

By placing the braces I3 in the sockets ifl ina position so that the arms l4 p olegtio wailld yrof the ladder, as shown in Figure 11, the arms may then be used to support scaffolding non-shown thereon.

- -rearwardlyvsaidarms being adapted to support In view of the foregoing description taken in hended by. thespirit of the invention asherein described and. thescopeof theappended claim.

.claim: A ladder bracket comprising slides adapt-ed .for mounting on ,the. rails of .aladder, -pivoted clampscafioldin thereon when projected outwardly.

' CECIL L. BROWN.

:REFERENQES CITED The following references are of recordyingthe file of this patent:

. UNITED STATES PATENTS

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