US1250930A - Hanger for portable platforms. - Google Patents

Description

J. BLAHA.

HANGER FOR PORTABLE'PLATFORMS.

APPLICATION F|LD OCT. 2a, 1916.

Patented Dec. 18,1917.

2 SHEETS-SHEET I.

,1 i- /4 J /4 J" Wunesses m f if %f%f L Q J. BLAHA.

HANGER FOR PORTABLE PLATFORMS.

APPLICATION FILED on. 28. 1916.

1,250,930. Patented Dec. 18, 1917, i 2 SHEETSSHEET 2.

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/2/'s. fifzomey UNITED srarns PATENT orrion JOSEF BLAHA, 0F CLEVELAND, OHIO.

HANGER ron PORTABLE PLATFORMS.

Application filed October 28, 1916.

To all whom it may concern:

Be it known that I, J osnr BLAHA, a citizen of the United States of America, residing at Cleveland, in the. county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Hangers for Portable Platforms; and I 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 pertains to make and use the same.

This invention relates to an improved hanger for suspending a portable platform from a device or apparatus employed in hoisting or conveying the platform.

This invention pertains more especially to a hanger comprising a bar which is arranged in a horizontal plane and provided intermediately of its ends with means for suspending the bar and carries brackets from which members having seats for a platform are suspended.

The object ofthis invention is to provide simple and eiiicient means for suspending said bar, to have the aforesaid brackets removably mounted on the end-portions of said bar so that they can be used in connec tion with bars of different lengths, to prevent sliding of said brackets ofi said bar, and to provide simple and eilicient means for suspending a platform from said brackets.

With this object in view, and to the end of attaining any other advantage hereinafter appearing, this invention consists in certain features of construction, and combinations and relative arrangement of the parts, hereinafter described in this specification, pointed out in the claim, and illustrated in the accompanying drawings.

In said drawings, Figure 1 is a top plan of a hanger embodying my invention and shows a platform carried by the hanger. Fig. 2 is a side elevation of the hanger and platform. Fig. 3 is a vertical section taken along either line 3, Fig. 2, looking outwardly. Fig. l is a vertical section on line H, Fig. Figs. 3 and 4c are drawn on a larger scale than Figs. 1 and 2.

My improved hanger for suspending a portable platform comprises a bar A which is arranged in a horizontal plane and provided centrally between its ends with a pair of laterally spaced substantially vertical members a which are arranged at opposite sides respectively of and secured to the bar and extend upwardly from the bar.

Specification of Letters Patent.

Patented Dec. '18, 191 7.

Serial No. 128,210.

Two diagonally arranged members B extend upwardly toward each other from and are secured to opposite end-portions re spectively of the bar A. Each. diagonal member 'B has a forked lower-end-porti'on 6 which straddles and is secured to said bar'.

A horizontally arranged bolt has its head D arranged at the outer side of the upper end-portion of one of the substantially vertical members a and has its shank d extending loosely through and beyond the outer side of the upper end-portion of the other of the said substantially vertical members, and a nut E is screwed onto the free. end of said shank. The diagonally arranged members B have forked upper end-portions Z) loosely embracing the bolt-shank (Z at the outer sides of the substantially vertical members a and at the inner ends of the bolt-head D and nut E.

A rigid tubular member G, which is circular in cross-section, loosely embraces the shank (Z of the bolt'between the substantially vertical members a, and a hook H, having its lower end-portion h loosely embracing and affording bearing to said tubular member, is instrumental in suspending said tubular member, and consequently the bar A, from a hoisting device not shown.

Preferably the tubular member G (see Fig. 4) extends into the substantially vertical members a and is provided with shoulders 7 arranged to form abutments for the inner sides of said substantially vertical members, and consequently said tubular member braces said substantially vertical members at its shoulders.

I indicates a horizontally arranged platform shown suspended from the end-portions of the bar A, and the means employed for suspending said platform from each endportion of said bar preferably comprise an inverted-U-shaped bracket K straddling and removably mounted on said end-portion of said bar between the outer extremity of said end-portion and the adjacent diagonally arranged member B. Each end-portion of said bar is provided at the top, between the outer extremity of the bar and the bracket on said end-portion of the bar, with an inwardly facing shoulder 8 which prevents sliding of said bracket outwardly off the bar.

Each end-member 10 of each bracket K (see Figs. 2 and 3) is provided with a recess 12 extending upwardly from the lower extremity of said end member and to the outer side of said end member, and a link L extends downwardly from within said recess and is pivoted, as at Z, to said bracket horizontally and longitudinally of the bar A.

It will be observed that the two links L of each bracket K are arranged at opposite sides respectively of the bar A and extend and diverge downwardly from the bracket, as shown in Fig. 3, and two levers H and M are pivoted, as at 13, horizontally and longitudinally of the bar A, the one to the lower end-portion of one of the links L and the other to the lower endportion of the other of said links, and said levers cross each other at a, point spaced downwardly from said links and are pivoted to each other, as at m, at the crossing of said links. Each of said levers is provided at its lower end with an inwardly projecting seat-member 14 for the platform I which is shown resting on the seat-members of the levers suspended from the brackets, as hereinbefore indicated, through the medium of the links L.

It will be observed that the pivotal connection between the levers M and M is substantially parallel with the pivotal connections between each link and the connected lever and bracket, and that the weight of the platform is adequate to retain the seatmembers 1% of the levers in position under the platform.

It will be observed that my improved hanger is simple, strong and durable and suitable for carrying a heavily laden platform, and that the bolt-embracing tubular member G not only forms lateral abutments for the substantially vertical members a of the bar A but extends into said members of said bar so that the bar is suspended from the bolt in such a way as to prevent shearing of the bolt. Not unimportant, also, is the arrangement of each bracket K between the shoulder 8 on the adjacent end-portion Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Washington, D. 0.

of the bar and the adjacent diagonally arranged member B which therefore has its lower end-portion arranged to limit movement of said bracket inwardly on said bar. Also, said shoulder, being formed at the top of the bar, is arranged where it is most efficient as an abutment or stop for the adj acent inverted-U-shaped bracket shown.

lVhat I claim is:

In a hanger for suspending a portable platform, a bar arranged in a horizontal plane and adapted to be suspended, two inverted-U-shaped brackets straddling opposite end-portions respectively of and supported from said bar and having each end member thereof provided with a recess extending upwardly from the lower extremity of said end member, two links extending and diverging downwardly from within the recess in opposite end members respectively of each bracket and pivoted to the bracket horizontally and longitudinally of the aforesaid bar, and two levers pivoted horizontally and longitudinally of said bar the one to the lower end-portion of the one of said links and the other to the lower end-portion of the other of said links, said levers crossing and pivoted to each other at a point spaced downwardly from said links, the pivotal connection between said levers being substantially parallel with the pivotal connections between each link and the connected bracket and lever, and each lever being provided at its lower end with a seat for a platform.

In testimony whereof, I sign the foregoing specification, in the presence of two witnesses.

.IOSEF BLAI-IA.

Witnesses:

JOSEPH J. BLAHA, CASPER J. DOVER.

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