US801431A - Extension stage-bracket. - Google Patents

Description

No. 801,431. PATENTED OCT. 10, 1905.

F. W. ADAMS.

EXTENSION STAGE BRAOKET.

APPLIOATIOE FILED MAY 2. 1904.

o I I. b! v HHHHIH WEQ IH.. WS I J UNITED STATES PATENT OFFICE.

' EXTENSION STAGE-BRACKET.

Specification of Letters Patent.

Patented Oct. 10, 1905.

Application filed May 2, 1904. Serial No. 205,945.

To aZZ whom, it may concern.-

Be it known that I, FRED W. ADAus, a citizen of the United States, residing at Auburn, Maine, have invented certain new and useful Improvements in Extension Stage-Brackets, of which the following is a specification.

The present invention relates to an improved extension stage-bracket designed for the making of a stage for painters, carpenters, and other workmen to stand upon.

The object of the invention is to provide an extremely simple, economical, and eflicient device which may be folded into compact form for transportation and which may be readily assembled and which may be adjusted to support the platform or staging at any desired height or width.

The invention is illustrated in the accompanying drawings, in which- Figure 1 is a side elevation; Fig. 2, a view of the inside of one of the standards. Fig. 3 is a view of a modified form of brace.

In the drawings I have shown only two standards and two connecting-bars; but it will be understood, of course, that in use this structure is duplicated and the platform or staging supported on two or more horizontal bars, according to the amount of platformspace which is necessary.

In the drawings the numerals 5 designate standards which are duplicates of each other and which consist of vertical bars or members 5, provided with leg portions or feet 5", connected by horizontal bars 5, to which the lower ends of the bars 5 are attached. The bars 5 are provided with a plurality of recesses or mortises 6, which are adapted to receive the ends of the horizontal bar 7,as shown. The under edges of the horizontal bars are notched, as shown at 8, so that when inserted in the mortises 6 and dropped down into engagement with the lower edges thereof they are held against displacement. To each of the bars 5, near the lower end thereof, is connected a brace 9 through a bracket 10, which is secured to the lower portion ofthe bar 5 and to which the brace 9 is pivotally attached, so as to be capable of folding flat against the bar when the structure is not in use, in which position it may be held by a catch 11, the opposite end of which brace is provided with a bifurcated portion 12, the arms of which are adapted to embrace opposite sides of the horizontal bar. A thumb-screw 13 passes through one of the arms of the bifurcated portion, whereby it may be clamped securely to the horizontal bar. When the parts are thus assembled, it will be seen that a very rigid bracket is provided for a platform which may be readily knocked down and one also in which the height at which the platform is supported may be very readily changed according to requirements.

I form the mortises in the standards in zigzag form, as shown in Fig. 2, whereby a greater variety of adjustment as to elevation may be secured. I may also form the braces extensible, as shown in Fig. 3, in which each brace comprises two members 9 and 9", the latter telescoping within the former. The tubular portion 9 is split at the ends, as shown, and screwthreaded to engage a thumb-nut having a tapered interior thread, so that by screwing or unscrewing this thumb-nut the telescoping portion may be clamped or released, as desired.

Having thus described my invention, What I claim is In combination, a pair of standards having a plurality of staggered mortises, a horizontal bar, adapted to be seated in said mortises and folding braces connected to the standards I and detachably engaging the horizontal bar,

substantially as described.

In testimony whereof I afiix my signature in presence of two witnesses.

FRED W. ADAMS.

I/Vitnesses:

E. PEARL FRos'r, ARISTA W'EBBER.

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