US667992A - Scaffold-bracket. - Google Patents

Description

am. 667,992. l Patented Fab. l2, |901` H. A. PATzoLn.

SCAFFDLD BRACKET- (Application filed Aug. 21., 1900.)

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HENRY A. PATZOLD, OF SALT LAKE CITY, UTAH.

SCAFFDLDMBHACKET.

SPECIFEZCACMUM forming' :cart of Letters Patent No. 667,992, dated February 12, 1901.

Application led August 2l, 1900. Serial No. 27,617. r(No model.)

Be it known that l, HENRY A. PATZOLD, a citizen of the United States, residing` at Salt Lake City, in the county of Salt Lake and State of Utah, have in vented new and useful Improvements in Scallold-Brackets, of which the following is a specification.

lily invention relates to scaiold-brackets, the object being to provide a simple, durable, and e'ltective device of this character, which will be especially adapted for the use oi' carpenters, but maybe employed wherever a scaffoldsupport is required.

The construction ot' the improved bracket will be fully described hereinafter in connection with the accompanying drawings, which form a part ci this specification, and its novel `features will be dened in the appended claim.

ln the drawings, lligure 1 is an elevation of a portion of a frame building With two of my improved brackets applied thereto,the brackets being shown in side elevation and adjusted to different positions; and Fig. 2 is a plan view of one of the brackets.

The reference-n nineral 1 designates the side oil a frame building, and 2 one of the rooftiinbers thereof.

rllhe standard of the device comprises parallel bars 3, connected at their lower ends by a transverse bar l[not shown) and having their outer edges formed with a plurality of notches 5.

Between the upper ends oi the parallel bars 3 are pivotally secured, by means of a cross` pin 6, the ends of tuo parallel arms 7, formed at their outer ends with lugs or projections S, which serve as stops for the boards forming the lioorof the scaffold. Between the ends of the arms 7 an eyebolt 9 is mounted upon the pin or bolt 6. Upon the pivotal end of the eyebolt 9 is arranged a clamping-nut 10, having a projecting` handle 11.

l2 designates thc brace-bar of the bracket, pivotally secured at its upper end between the outer ends of the arms 7 by means of a pivot-bolt 13. rlhe lower end of the brace l2 is provided with a cross-rod 14, the ends ot' which are formed with disks or heads. rlhis rod 14 is adapted to t within the notches in the bars 3 to support the arms 7 in a horizontal position. The inner edges of the bars 3 are formed with recesses, within each of which is pivotally secured a dog or catch 16. The function of these dogs or catches 16 is illustrated at the upper portion of Fig. 1 in t-he drawings, said dogs or catches penetrating the roof-timber and serving to secure the bracket firmly upon the roof.

Vhen the bracket is to be used upon the side of a frame building, the eyebolt l) is passed between the stndding and through an opening in a block i7, which is of sutlicient length to extend from one to another of the studding-timbers. The hand-nut 10 is then turned to clamp the block 17 firmly against the studding. The brace l2 is then raised and its lower end is engaged with the notches in the bars 3, as illustrated in Fig. l.

Vhen the bracket is to be used in the construction of a brick building, a suitable opening for the passage of the eyeholt must be made in the Wall, and the secu1ing-block,cor responding to the block 17 shown in the drawings, would necessarily be of greater length than in the case of a frame structure in order to aiord a wider bearing against the inner side of the Wall to prevent damage to the masonry.

When the bracket is folded to the position shown at the upper portion of Fig. 1 for use upon a roof, the eyebolt 9 and its hand-nut 10 are ot' no service and may be turned to a position between the bars 3, where they Will be out of the Way.

lt will be obvious that the bracket con structed as above described may be folded into a small compass when not required for use and may be easily transported1 l claim- A scaffold-bracket com prisin g parallel bars formed with notches and recesses, and con stitnting the standard ot' the bracket; parallel arms pivotally secured between the upper ends of said bars, and formed at their outer ends with upwardly-projecting stop-lugs; a brace pivotallysecured between theouterends of said arms; a cross-pin extending through the free end of said brace, and having en- In testimony whereof I afx my signature larged or headed'ends; dogs or catches pivot.- in presence of two Witnesses. ally secured Wlthln the recesses of sald catchv HENRY A. PATZOLD.

bars; an eyebolt arranged .upon the pivotal 5 support 0f the arms; and a clamping-nut Witnesses:

on said eyebolt. provided with a projecting JAMES M. ANDERSON, handle. ADDIE E. PATZOLD.

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