US336727A - Shingling-bracket - Google Patents

Description

(No Model.)

. D. T. LEGGETT & W. S. SANDERS.

SHINGLING BRACKET. No. 336,727. Patented Feb. 23, 1886.

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'. H may a L A MM A lwmm' UNITED STATES PATENT OFFICE.

DAVID THOMAS LEGGETT AND WILLIAM sAnPsoN sANDEns, or FISHERS- BURG, INDIANA.

SHINGLING BRACKET.

SPECIFICATION forming part of Letters Patent No. 336,727, dated February 23, 1886.

Application filed December 16, 1885. Serial No. 185,8!9. (No model.)

To all whom, it may concern:

Be it known that we, DAVID T. LEGG'ETT and WILLIAM S. SANDERS, of Fishersburg, in the county of Madison and State of Indiana,

have invented certain new and useful Improvements in Shingling-Brackets; and we do here by 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 apo pertains to make and use the same.

Our invention relates to an improvement in shingling-brackets.

The object is to provide a bracket in which pressure on the arm which supports the weight,

1 when applied in the direction of the slant of the roof, will tend to lock the bracket to the roof as effectually as the pressure exerted in a vertical direction.

Afurther object is to provide a strong, convenient, and durable bracket which will, in addition to its use in supporting a platform for shingling purposes, serve as a means for attaching a rope or tackle for hoisting a bundle ofshingles or other commodity from the ground 2 5 to the roof, or for supporting a platform at the side of a building for painting, &c.

, \Vith these ends in View our invention consists in certain features of construction and combinations of parts, as will be hereinafter 0 fully described, and pointed ontin the claims.

In the accompanying drawings, Figure 1 is a view of the bracket in position for use on a roof; and Fig. 2 is a longitudinal vertical section showing thenpper claw-bar slightly elevated, as it would be in placing the bracket in position.

A represents the lower or under claw-bar, adapted to rest in contact with the shingles. It is provided at each end with apair of spreading branches, those at the lower end (designated by a) being provided with downwardly and rearwardly extending claws a, and those at the upper end (designated by a being provided with forwardly extending flattened 5 ends a The under sides of the bar A. audits branches are in the same plane, the claws a alone projecting below it, thus bringing the entire weight of the bar and whatever weight is applied to it to bear on the said claws until they shall have become embedded in the face of the shingle their entire length, when the bar itself rests on the shingles and prevents further pressure on the claws alone. It is not, however, necessary that the claws should be pressed in their full length to give the bar an effective hold, as a very slight depression would be enough for all ordinary purposes.

B represents the upper claw-bar. It is pivotally secured at its lower end in a slot, 1), formed in the bar A, near its lower end, and is provided with a pair of spreading branches, 1), corresponding to the branches (4 on the under claw-bar. The ends of the branches 1) are, however, provided with downwardly-extending claws Z)", the edges of which rest, when the bar B islying on the bar A, in close proximity to the forwardlyextending flattened ends a.

The bar A is provided, near its upper end, with a slot, 0, in which one end of the sup. yo porting-arm 'D is pivot-ally secured. The arm D extends from thence downwardly and outwardly in curved form, as shown at (I, through an oblique slot, 0, in the bar B, and after continuing in such form for a suitable distance makes a sharp turn of somewhat more than ninety degrees, and extends outwardly, as shown at d, sutlioiently far to form the re quired support, and terminates in a slight backward curve, as shown at (2".

It will be observed that the object of the oblique slot 0 is to form such an inclined bearing for the arm D against bar B as will enable the said upper claw-bar, B, to bear with exceedingly great pressure upon any object with which it may be brought in contact when sub ject itself to pressure from arm D. To adjust the bracket to the roof, the flattened ends a of the branches at are slid. beneath the butt of ashingle, the claw end of the bar B being raised to admit thebutt of the shingle beneath it, and allowed to drop back onto the outside of the shingle over the ends a. As the claw end of the bar Bis raised,the arm D is forced upwardly away from the upper side of the bar B by means of the oblique slot 0, through which it extends; and since the claw end of the bar B is hold somewhat elevated by the thickness of the shingle, any pressure, either vertically or in the direction of the slant of the roof, on the arm D will tend to depress the bar B, and hence to set the claws b more securely in the face of the shingle. The vertical pressure on the arm D and the weight of the bracket and its load also tend to set the claws a more securely in the roof. Thus the pressure and load upon the arm D are all utilized in looking the bracket more firmly to the roof.

The bight formed by the sections at and d of the arm D tends to prevent the platform from sliding off the outer end of the arm, and also serves to retain the bight of a rope or a hook which may be attached thereto for hoist- ,ing purposes.

It will be observed that a rope attached to the arm D and led from thence down the roof and over the eaves to the ground will, when weight is applied thereto, serve to lock the bracket to the roof in the same manner as be fore explained.

The claws b" may be raised from the shingle and the bracket released from the roof by lift ing upwardly on the end of the arm D and then sliding the whole downwardly until the flattened ends a are withdrawn from beneath the shingle.

We are aware that it is not new to have an under claw-bar and an upper claw-bar connected therewith, the upper claw-bar being provided with a dog for locking the same, and hence we make no broad claim therefor.

It is evident that slight changes might be resorted to in the form and arrangement of the several parts described without departing from the spirit and scope of our invention; hence we do not wish to limit ourselves strictly to the construction herein set forth; but,

Having fully described our invention, what We claim as new, and desire to secure by Letters Patent, is

1. In a shingling-bracket, the combination, with an under claw-bar and an upper clawbar hinged thereto, of a curved supportingarm pivotally secured in the under bar and having an inclined bearing on the upper bar, for the purpose substantially as set forth.

2. The combination, with the under bar having claws on its lower end and the upper bar pivoted to the under bar at its lower end and having claws at its upper end, of the curved supporting-arm pivoted to the under bar and extending through an oblique slot in the upper bar, substantially as set forth.

3. The combination, with the under bar having claws at one end and flattened branches at the other end, of the upper claw-bar hinged to the under bar, and the supporting-arm, curved substantially as shown, and pivotally secured in the under bar and extending through an oblique slot in the upper bar, substantially as set forth.

In testimony whereof we have signed this specification in the presence of two subscribing witnesses.

DAVID THOMAS LEGGETT.

WILLIAM SAMPSON SANDERS. \Vitnesses:

J A0013 ASKIN,

CORNELION ZIHMERMAN.

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