US1189166A - Scaffold. - Google Patents

Description

W. A NEVILLE.

SCAFFOLD.

APPLICATION FILED OCT. 18. 1915.

1,189,166. Patented June 27,1916.

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UNITED srATEs re'rnn'r ons re n WILLIAM A. NEVILLE, OF KEWANEE, ILLINOIS.

SOAFFOLD.

T 0 all whom it may concern:

Be it known that I, WVILLIAM A. NEVILLE, a citizen of the United States, residing at Kewanee, in the county of Henry and State of Illinois, have invented certain new and useful Improvements in Scaifolds; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the This invention relates to scaffolds, and more especially to the brackets employed for supporting them; and the object of the invention is to produce an improved form of bracket capable of successful use on tin, slate, or other roofs, with or without an ornamental ridge-roll, the construction of the bracket being such'that it does not injure the roof or the roll, and yet it is foldable into small compass as for storage and transportation.

Another object is to provide means whereby the bracket may be mounted on a ladder, especially if the latter be laid on the roofthus affording means for building a staging alongside a chimney which could not be reached if the bracket were engaged over the ridge-roll.

These objects are carried out by constructing the devices as hereinafter more fully de- I scribed and clalmed and as shown 1n the drawings wherein Figure 1 is a perspective view of this device in use to support a staging whereon the mason may stand while building the chimney. Fig. 2 is a view of this improved device in its folded condition. Fig. 3 is a perspective view of this device, showing its application to a ladder which latter in this view is illustrated as lying on a roof. Fig. 1 is an enlarged perspective detail of one of the hooks, and Fig. 5 is a section on the line 55 of- Fig.

In the drawings I have shown part of the roof R and part of the chimney C. When the mason is building the latter he stands Specification of Letters Patent.

application filed October the roofs are of tin, the tin plates are connected end to end into strips, and the strips are connected edge to edge by upstanding crimped seams spaced probably about fourteen inches from each other. It follows that any form of scaffold bracket laid upon such a roof should bear on it between the seams, for otherwise the latter will be turned or injured by the brackets. Roofs also are often provided with an ornamental ridgeroll such as shown in Fig. 1 of the drawings, this ordinarily being a sheet metal member which rises from the apex of the roof but does not possess a great amount of inherent strength. In the application of a scaffold bracket to such a roof, provision should be made for carrying it over the ridge-roll so as not to bend or injurethe same. My invention is adapted to these ends, while being also adaptable to an ordinary slate or shingle roof, and its details are as follows:

The numerals 1 and 2 designate two base members of like but complementary con struction, each being made by preference of narrow strip metal bent into V-shape in plan view. That is to say, the strip of material is bent laterally at its center as at 3 into a rather open loop whose sides are pierced with registering holes, and the loop is then bent up, edgewise of the strip, as seen at 4. The arms 5 and 6 extending from this bent center diverge slightly toward their upper ends. At the last-named points they are arched as shown at 7 and 8, the upper ends of the arches being pierced with registering holes. These arches (or rather halfarches) complement similar parts in the corresponding base 2, and when the main bolt 10 is passed through the four alined holes the base elements are hingedly connected with each other. The arches and the upbent loops are above the plane of the arms,

which latter are intended to rest at "their lower edges upon the roof as described below. Two like supporting members 11 and 12 are provided, which also by preference are made of narrow strip metal and V-shaped in plan view, each bent into an open loop 13 at its outer end and ,each having registering or alined holes at the inner Patented J nne 27, 1916..

Continuation in part of application Serial No. 21,821, filed April 16, 1915. This Serial No. 56,474.

ends of its two arms; and the four holes in these two members are also mounted on the main bolt 10. The four members thus far described are therefore foldable into small compass as best seen in Fig. 2. Finally there are two like members which I will call uprights, made also by preference of strip metal, the lower end of each upright 20 being pivotally mounted on a rivet or bolt 21 passing through the holes in one upbent loop 3, and its body passing between the arms of the superimposed support. This body is formed with a number of lateral projections which may well be made by fixing pins 22 through the upright, and the pins are spaced suiiiciently to permit the loop 13 of the support to stand between two of the pins when it rests on any one of them, while the pins are of such length that when the upright is swung inward toward the main bolt they may pass between the arms of the support and all parts can be folded into small compass as shown in Fig. 2.

In the use of this device, it is stored and transported in its folded condition, and the artisan will find no trouble in carrying a pair of such brackets in his tool case. On reaching his destination, let us assume that he is a mason to work on a chimney C as seen in Fig. 1. The brackets are opened out on the main pivot, the base members laid over the sides of the roof, and the arches will overlie the ridge-roll. The width of the base members is such that they will stand between the seams in a tin roof so that the latter will not be injured, and the height of the arches is such that the ridge-roll will not even be touched by them. In this position each base member is prevented from sliding down its side of the roof by the fact that it is connected with the other base member, and therefore the bracket does not need to be attached to the roof in any way The supporting members are now raised to or approximately to a horizontal, and the uprights are swung out to engage the proper pins in the loops 1?) of the supports to hold them; after which the staging S is laid over a pair of these improved brackets, and the scaffolding is ready for the workman. In swinging out the uprights their lower ends are held 01f the roof by the up-bent loops 8 in which they are pivotedhence there is no injury to any part of the roof. It is quite within the spirit of my invention that it could be made in considerably larger sizes than as shown in the drawings, and I reserve the right to make such changes as are possible under the law.

Another feature of my invention is illustrated in Fig. 3, and in detail in Figs. 4 and 5. It consists of hooks 30, preferably of strap iron and two in number, each pivotally mounted at one end at 31 on the main bolt 10 adjacent and by preference inside one arm of the innermost supporting member, such as 11; while its other end may be twist ed as at 32 if it is made of strap iron, and is bent into the form of a hook or bill 33 as best seen in Fig. 4%. A projection, preferably in the shape of a rivet, 3a is formed on or fixed in the body of the book as seen in F ig. 5, and a hole 35 is cut in the arm of the ad jacent member at a proper point to receive said projection when the hook and member lie parallel. This might be called a latching means for holding the hook from swinging out of such parallelism to a position where it would be in the way at times. When these hooks are to be used they are disengaged from their latched position and swung on the main bolt 10 so that their bills 33 may be hooked over the rung of a ladder L as seen in Fig. 3. At this time the base members of the bracket will be opened out flat on the several ladder-rungs, the then upper support and its upright will be folded, and the lower support will be opened out to a horizontal position and held there by its support 20, and the staging S will lie on its support 11 while the other support is not in use. It often occurs that the chimney C is so far from the ridge-roll of the house that this expedient must be resorted to in order to give the staging a position where the operator can work upon it. In fact, it is not necessary that the ladder lie on a roof as shown, because it may he leaned against a wall or stood almost upright and yet the scafiold bracket could be used for engaging its hooks in one of the rungs.

What I claim is:

1. The herein described scaffold bracket comprising a pair of base members V-shaped in plan and with the united ends of their arms connected by an upbent open loop and the other ends of their arms arched upwardly and provided with alined holes, a main bolt through all said holes, a pair of supports V-shaped in plan and with one end of their arms connected by an open loop and the other end of their arms pivotally mounted on said bolt, and a pair of uprights whereof each is pivoted within the loop of one base and extends through the superimposed support, its body being provided with means for adjustably engaging the loop at the outer end of said support.

2. The herein described scafiold bracket comprising a pair of base members Vshaped in plan and with the united ends of their arms connected by an open loop and the spaced ends of their arms lapping each other and provided with alined holes, a main bolt through all said holes, a pair of supports l-shaped in plan and with the united ends of their arms connected by an open loop and whereof each is pivoted within the loop of one base and extends through the supertion extending laterally from each hook beimposed support, its body having means for tWeen its ends, said arm having a hole enadjustably engaging the loop of such sup gaged by said projection When the hook is 10 port, a pair of hooks each having one end parallel With the arm.

pivotally mounted on said bolt inside the In testimony whereof I affix my signature. adjacent arm of the inner support and its other end formed into a bill, and a projec- WILLIAM A. NEVILLE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, I). G.

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