US1222053A - Scaffold. - Google Patents

Description

F. W. WATSON.

SCAFFOLD. APPLICATION FILED JULY I. 1916.

Patented Apr. 10,1917.

PW. WATSON an ar FRANK W. WATSON, 0F CEDAR FALLS, IOWA.

SCAFFOLD.

Specification of Letters Patent.

Patented Apr. 10, 1917.

Application filed July 1, 1916. Serial No. 107,086.

To all whom it may concern:

Be it known that I, FRANK W. WATSON, a citizen of the United States, residing at Cedar Falls, in the county of Blackhawk and State of Iowa, have invented certain new and useful Improvements in Scafl'olds, of which the following is a specification, reference being had to the accompanying drawmgs.

This invention relates to certain improvements in scaffolds and has relation more particularly to a device of this general character especially designed and adapted for use in connection with roofs; and it is an object of the invention to provide a scaffold of this general character having novel and improved means whereby it may be readily and eifectively adjusted in accordance with the diifering inclination of roofsand whereby the same may also be adjusted in such a manner as to serve as a horse.

The invention consists in the details of construction and in the combination and arrangement of the several parts of my 1mproved scaffold whereby certain important advantages are attained and the device is rendered simpler, less expensive and otherwise more convenient and advantageous for use, all as will be hereinafter more fully set forth.

The novel features of the invention will hereinafter be definitely claimed.

In order that my invention may be the better understood, I will now proceed to describe the same with reference to the accompanying drawings, wherein Figure 1 is a view in elevation of a scaffold constructed in accordance with an embodiment of my invention and in applied position;

Fig. 2 is a detached view in perspective of one of the beams employed in my invention as herein disclosed;

Fig. 3 is a detached view in perspective of one of the legs as herein embodied; and

Fig. 1 is an elevational view disclosing my improved scaffold assembled for use as a horse.

As herein disclosed, my improved scaffold comprises two coacting sections and when applied upon a roof one section serves to coact with the second section for maintaining the scaffold as a whole in proper position. As each of the sections is substantially identical, it is thought that a description of one will suflice for both.

As herein disclosed, each of the sections of my improved scaffold comprises an elongated channel beam 1 of predetermined length and having pivotally engaged with its outer end the upper section 2 of a supporting leg L, said pivotal connection 3 being such as to permit said section 2 being separated from the beam 1 as desired.

Coacting with the section 2 is a second section 4 of predetermined dimensions and provided with an elongated longitudinally disposed slot 5 through which the clamping members 6 carried by the section 2 are disposed. By this arrangement it will be perceived that the sections 2 and A may be longitudinally adjusted in order to maintain the beam 1 in a horizontal position irrespective of the inclination of the roof to which the scaffold may be applied. The lower end of the section 1 is enlarged transversely t0 afford the foot 7 provided with the toothed engaging edge 8 for a purpose which is be lieved to be self-evident.

The flanges of the beam 1 are downwardly disposed and are provided adjacent their opposite ends with the transversely alined openings 9 to afford a means whereby the brace member B may be engaged therewith. As herein disclosed, the brace B comprises two sections and when the device is adapted to be employed as a scaffold the upper end of the section 10 of the brace B is pivotally engaged with the inner end of the beam 1 through the medium of the removable pintle 11, while the second section 12 of the brace B is pivotally engaged with the leg L. In order that the sections 10 and 12 may be longitudinally adjusted one relative to the other, the brace B is provided with an elongated longitudinally disposed slot 14; through which is adapted to be disposed the clamping members 15 carried by the second section 12.

When in applied position, the inner ends of the beams 1 are adapted to contact with the ridge portion of a roof and are detachably connected one with the other through the medium of the removable pin 16.

I also find it of advantage to provide the beams 1 with the loop rods 17 which serve to assure the scafiold boards being maintained against accidental displacement.

As is illustrated particularl in Fig. 4, the sections of my improved sca old may be assembled in such a manner as to serve as a horse and in which event the legs L are secured to the opposite ends of a beam 1 and the braces B disposed in crossed relation, as particularly illustratedin said Fig. 4, and it is for this reason that theopposite ends i of the flanges of 'eacheof the beams 1 are provided with the transversely alined open- B are offa width less than the width of the beamsl and are of such relative widths as to .permitethe same to assume the crossed relation as disclosed in Fig. 4:.

From the foregoing description; it. is

V thoughtto be obvious that a scaffold constructed in accordance with'my invention is of an extremely snnple and comparatively inexpensive nature and is particularly well I Copies oifr'this patent may be obtained for for this reason I do not wish to be understood as limitlng myself to the precise arrangement and formation of the several parts herein shown in carrying out my invention in practice, except as hereinafter e claimed. ings 9 here1n'before referred to. The braces I claim:

A scaffold structure comprising two beams, a leg at each end of each beam and a brace connecting each leg to its beam, the leg and brace at one end of each beam being detachable, and means for detachably connecting such ends ofthe two beams together I whereby either-two platform supports or a single gable spanning support may be provided. H

In testimony whereof I hereunto affix my signature in the presence of two witnesses.

FRANK W. WATSON.

O. B. SAUTER, R. A. SAUTER.

1 Witnesses five cents each by addressing the Commissioner of Patents, Washington, D. G.

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