US1363864A - Combinational roof ladder and bracket - Google Patents

Description

H. GRUSH.

COMBINATIONAL ROOF LADDER AND BRACKET.

APPLICATION FILED SEPT. 15, 1919.

1,363,864. Patented Dec. 28,1920.

2 SHEETSSHEET 1- W/TNESSES INVENTOH (2471 607 Hcwrg rush Q1/- W By M ATTORNEYS H. GRUS'H.

COMBINATIONAL ROOF LADDER AND BRACKET.

APPLICATION FILED SEPT. I5, 1919.

1,363,5 4, Patented Dec. 28,1920.

2 SHEETS-SHEET 2.

WITNESSES INVENTOR y- I 60 Han 5 (M9514 Wm 7 By M ATTORNEYS UNITED STATES HARRY GRUSH, OF JOHNSTOWN, PENNSYLVANIA.

COMBINATIONAL ROOF LADDER AND BRACKET.

Specification of Letters Patent. Patented D 28 1920 Application filed September 15, 1919. Serial No. 323,681.

T 0 all whom itma'y concern:

Be it known that I, HARRY GRusH, a c1t1- zen of the United States, and a resident of Johnstown, in the county of Cambria and State of Pennsylvania, have invented a new and Improved Combinational Roof Ladder and Bracket, of which the following 1s a full, clear, and exact description.

My invention relates to roof ladders and brackets used upon buildings, and particularly upon roofs, my more especlalpurpose being to provide a device which with little or no modification can be used either as a root ladder or as a bracket.

The purpose of my invention is to enable carpenters and other workmen, whlle at work upon a building, to save time and space.

A further purpose of my invention 1s to provide means for conveniently constructin a scaffold to be used upon a roof.

lily device is comparatively light and mav be constructed throughout of steel. .The lad der may be of any desired length.

Reference is made to the accompanying drawings forming a part of this specification and inwhich like reference numerals indicate like parts throughout all of the figures.

Figure 1 is a fragmentary section showing my device used as a bracket and as employed in the construction of a scaffold;

Fig. 2 is a plan view showing how the bracket is connected with a r001 ladder;

Fig. 3 is a side elevation of the bracket;

Fig. 1 is an end elevation of the bracket; and

Fig. 5 is a perspective view of the anchor plate for securing the device upon a roof.

A roof is shown at 6 and the cone thereof appears at 7. An anchor plate 8 is provided with a handle 9 and with holes 10 and 11, these holes being for the purpose of enabling nails to be driven through the anchor plate and into the root, for the purpose of holding the anchor plate in position. A chain 1.2 is connected with the anchor plate 8 and with another plate 13. Chains 14 are connected to the plate 13 and to a pair of ladder plates 15. A rung 16 extends from one of the ladder plates 15 to the other, as shown more particularly in Fig. 2.

here the device is to be used merely as a bracket, or for the construction of a very simple scaffold, only a single rung 16 of the ladder need be employed. If, however, the

device is'to have the oflice of a roof ladder, a pair of chains 17 is connected with the ladder plates 15 and with another pair of ladder plates 18, the latter supporting a rung 19; and connected with the ladder plates 18 are a pair of chains 20 which is similarly connected to other ladder plates, the system being continued to give the desired length of ladder.

A base plate 21 having a pair of arms 22 integral with it, as indicated in Fig. 2, forms a substantially Y-shape member. The arms 22 at their outer ends are bent upwardly at 23 and are by a bolt 24; connected with a pair of flat bars 25 of a shape indicated more particularly in Figs. 3 and at. Clamped between the upper ends of the bars 25 is a bar 25 secured to the upper ends of the bars 25 by rivets 26. The bar 25 is provided with holes 27. A pair of bars 29, spaced apart by another bar 29 sandwiched between them and held rigidly in position relatively to them is provided with holes 28. The bar 25 extends between the bars 29 and a bolt or holes 28 of bars 29 and a hole 27 of the bar 25. These bars at their outer ends may be raised or lowered relatively to the bar 25 and secured in position, that is to say, the pin 28 may be removed, the bars 29 raised or lowered, and the pin 28 then put back in position, but so it will extend through a different hole 27 thus the bars 29 may be adjusted to different angles relative to the base plate 21. This is for the purpose of enabling the bars 29 to be rendered level whatever may be the slope of the roof upon which the device is used. Thebars 29 and 29 being rigid relatively to each other may be regarded as a single bar of composite form. This bar is by a pin 32 journaled upon a block 33 secured to the base. Extending through this block is a bolt 34, and connected with this bolt is a hook 35 which may be brought into engagement with a rung oi the ladder, as shown at 16 in Fig. 3.

Two of the devices thus far described can be placed parallel with each other upon a roof, and a plank 36 rested upon the bars 29, this plank serving the purpose of a scaffold.

The bracket when once made and placed in position can be used after the manner of any other bracket.

If only a single rung 16 is used, the device pin 28 extends through the may be employed as a bracket and as a factor to be used in the construction of a scafiold, but not as a roof ladder. However, by adding chains 17, and plates 18, as above described, the device may be employed as a roof ladder. Thus, my device as a whole may be employed either as a roof ladder or as a bracket, the difference depending merely upon whether the roof ladder is to be reduced to a single rung or is to contain more rungs.

The operator can readily disconnect the hook from the rung of the ladder in order to take the device apart.

I do not limit myself to the precise construction shown, as variations may be made therefrom without departing from the spirit of my invention.

Having thus described my invention, what I claim and desire to secure by Letters Patent is as follows:

1. A roof bracket comprising a hook to be supported upon the rung of a ladder adapted to be secured to a roof, a block pivoted to said hook, a base plate connected with said block and provided With arms having upturned ends, a supporting member extending through said ends, a bar pivoted upon said supporting'member, a bar pivotally connected with said block, and means for holding said secondmentioned bar in adjusted position relative to said first mentioned bar.

2. In a roof bracket the combination of a hook adapted for engagement with the rung of a ladder adapted to be secured to a roof, a block connected with said hook, a base plate secured to said block and having a substantially Y shape, a supporting member extending crosswise of said base plate, a bar mounted upon said supporting member and adapted to swing relatively to said base plate, another bar pivotally mounted upon said block and adapted to swing relatively to said base plate, said last-mentioned bar being provided with a slot through which said first-mentioned bar extends, and means for connecting said bars together in order to adjust said second-mentioned bar in different angular positions relatively to said base plate.

3. A combined roof ladder and bracket, comprising a flexible ladder having an anchoring plate at one end, a base plate, a block mounted on one end of the base plate, a hook pivoted thereto and engaging a rung of the ladder, a bar pivotally connected with the block at one end and having a slot at its other end a second bar pivotally connected with the other end of the base plate, and provided with a plurality of openings, said bar extending through the slot of the first bar, and a bolt or pin extending through the first bar and an opening of the second bar.

HARRY GRUSH.

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