US822658A - Scaffolding. - Google Patents

Description

No. 822,658. PATENTED JUNE 5, 1906- J. EMBERSON.

SOAFFOLDING.

APPLIUATION FILED FEB. 21. 1905.

INVENTOR ATTORNEYS mrmrw a. swam co, moro-muocmwzns wAsmum'm o JOHN EMBERSON, OF WHITE PLAINS, NEW YORK.

SCAFFOLDING.

Specification of Letters Patent.

Patented June 5, 1906.

Application filed Febr ary 21, 1905. Serial No 246,697.

To all whom it may concern.-

Be it known that I, JOHN EMBERSON, a citizen of the United States, and a resident of White Plains, in the county of Westchester and State of New York, have invented a new and Improved Scaffolding, of which the following is a full, clear, and exact description.

This invention relates to improvements in scaffolding, particularly for use on roofs of buildings for convenience in repairing a chimney or in doing other work on a roof, the object being to provide a scaffolding structure that may be easily handled or placed in position and so constructed that the several parts may be compactly folded for storage or transportation.

I will describe a scaffolding embodying my invention and then point out the novel features in the appended claim.

Reference is to be had to the accompany-- ing drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a perspective view showing a scaffolding embodying my invention as in position. Fig. 2 is a side view thereof, partly in section. Fig. 3 is a fragmentary view showing a slight modification. Fig. 4 is a sectional detail showing the manner of attaching the securing-loops employed, and Fig. 5 is a sectional detail illustrating the manner of connecting the loops with the bracket members.

The scaffolding comprises a pair of bars, each consisting of two sections 1 2, which are connected together, as here shown, by means of a hinge 3. When the scaffolding is in use, these bars are to be passed over the ridgepole of the roof and down the roof, as clearly indicated in Fig, 1. The sections are provided with notches for receiving loop members of a bracket to be hereinafter described. The member 1 has a series of notches 4, the upper and lower walls of which are undercut, as indicated at 5, thus practically forming hook members for engaging the 100 s, and obviously by forming the double hoo members or undercut walls the bars may be used either end up.

While in the member 1 I have shown the double undercut Walls, in the section 2 the notches 6 have single undercut walls, as indicated at 7. Designed for engagement with the bars are brackets, each consisting of a horizontally-disposed member 8, to which a loop 9 is pivoted by means, as here shown, of a bolt 10, this loop being designed to engage in any one of the notches in the bar. The bracket also comprises a vertical member 11, pivotally connected to which is a loop 12, similar to the loop 9 and designed to engage in one of the notches of the bar. end of the vertical member 11 is provided with a pin 13 for engaging in any one of a series of perforations 14, formed in the under side of the horizontal member 8. When the bars and brackets are in position, the scaffolding-plank 15 is supported thereby. In some instances it may be necessary to use the bars at their full length on one side of a roof that is, to reach from'the peak of the roof to the gutter. In suchcase I employ hooks 16. Pivotally connected to the hooks 16 is a loop 17 for engaging-in a notch of a bar. This loop is pivoted to lugs 18 on the shank portion of the hook and which when in position engages against the opposite edges of the bar, thus preventing any possible twisting or lateral movement of the hook relatively to the bar. Fig. 3 clearly illustrates the manner of using this hook device.

Having thus described my invention, I claim as new and desire to secure by Letters Patent In a scaffolding, a supporting-bar having notches, the upper and lower walls of which are undercut, a hook, a loop attached to the hook for engaging the upper undercut wall of a notch, a bracket comprising horizontal and upright members, and loops on said members for engaging with lower undercut walls or notches.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN EMBERSON.

Witnesses:

JAME's I-I. MORAN, FRANK S STEVENS.

The upper.

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