US838010A - Window-scaffold. - Google Patents

Description

No. 838,010. I PATENTED DEC. 11, 1906.

'HLJ. COLE} WINDOW SGAPFOLD. APPLIOATIOR FILED An. 12. 1906.

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HENRY J. COLE, OF VINITA, INDIAN TERRITORY.

WINDOW-SCAFFOLD.

Specification of Letters Patent.

Patented Dec. 11, 1906.

Application filed April 12, 1906. Serial No. 311,244.

To CLZZ whom it may concern.-

Be it known that I, HENRY J. COLE, a citizen of the United States, residing at Vinita, in District No. 2, Indian Territory, have invented new and useful Improvements in WVindow-Scaffolds, of which the following is a specification.

This invention is a window-scaffold, designed particularly for the use of painters, window-cleaners, and the like, and has for its object to provide a portable scaffold which can be adjusted to fit any window and which can be folded to occupy little space for transportation or when not in use.

The invention is illustrated in the accompanying drawings, in which- Figure 1 is a perspective viewthereof. Fig. 2 is a plan view in folded position, and Fig. 3 is a side elevation in folded position.

Referring specifically to the drawings, 6 indicates side bars which set on the windowsill and project outside of the window when in use. These bars are preferably formed of two pieces, which may be metal, spaced apart by blocks 7. At their outer ends the bars have knuckles 8, between which are pivoted curved braces 9, the lower ends of which bear against the wall on the outside when the device is in use. The braces have a series of holes 10 to receive the pivot-bolts 11, whereby the braces can be adjusted to suit walls of different thicknesses. At their inner ends the bars have laterally-projecting stops 12, preferably consisting of a metal plate bent to angular form and joined at the ends to the sides of the bars. These pieces engage against the inner face of the window-frame, and so support the scaffold.

The bars 6 are connected by cross-pieces 13,which are made in two sections which lap each other, and the sections are provided with a series of holes 14 to receive pins 15. This allows the bars to be extended or contracted to suit windows of different widths and when properly adjusted can be fixed by the bolts. The sections are hinged, as at 16, to lugs projecting on the inner side of the bars 6. The rear or innercross-piece has two sliding cuffs 17 thereon, which can be slid. over the ends of the sections to prevent the cross-piece from buckling or which can be slid beyond the ends to enable the device to be folded when desired. An intermediate handle-b ar is indicated at 18. This is connected to the cross-pieces by the bolts 15, and it is provided at its inner end with a handle 19, which can be pulled after the cuffs 17 are released to ivollapse or fold the device, as indicated in In use the side bars. are adjusted to the proper distance apart to suit the window and then placed in the window, so that the projections 12 rest against the inner face of the window-casing and the braces 9 bear against the outside of the wall. Foot-boards may then be laid upon the bars to support the workman. When folded, the bars 6 close together or toward each other, providing'a structure which can be readily carried under the arm or otherwise transported. The pivotal connection of the braces 9 allows them to fold in or against the bars 6, as shown in Fig. 3. a The device may then be readily carried from one place to another and successfully used undervarious conditions or circumstances. One of the blocks 7 is located near the outer ends of the bars 6 above the pivots 11, and the upper ends of the braces stop against this block, so that they cannot swing down or out beyond the proper point to sustain the weight on the bracket.

I claim 1. In a window-scaffold, the combination of a pair of bars having side stops at the inner ends and braces at the outer ends, and folding cross-bars connecting the sidebars and arranged to fold to bring the side bars toward each other.

2. The combination with side bars having stops at the inner ends and pivoted braces at the outer ends, of extensible andfoldable cross-pieces connecting the side bars and hinged thereto.

3. The combination of the side bars having laterally-extending stops at the inner ends, braces pivoted to the outer ends of the side bars and adjustable in and out with respect thereto, front and rear extensible folding cross-pieces connecting the side bars, said pieces being formed in two sections hinged at the ends to the side bars and lapped at the middle and provided with clamping-bolts connecting the sections, and an intermediate bar extending between the front and rear cross-pieces and secured by said bolts.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

HENRY J. COLE.

Witnesses:

F. J. HART, EDw. SHANAHAN.

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