US2549638A - Scaffold - Google Patents

Description

April 17, 1951 J. CLROGGHE 2,549,638

SCAFFOLD Filed Sept. 12, 1946 2 Sheets-Sheet 1 I N V EN TOR.

John C. Re y/1e BY GLDaMCQ gM P A 7701IVEY5 April 17, 1951 J. c. ROGGHE 2,549,638

SCAFFOLD Filed Sept. 12, 1946 2 Shqgt-;-Sheet 2 ll-f5 INVENTOR. Y john LIT-R05 [7e 6ZJuu Patented Apr. 17, 1951 UNITED STATES I ?ATE NT' Q FFICE I r I 2,549,638 I SCAFFOLD John C. Rogghe, Upper Montclair, N. J. 1; Application September 12, 1946, Serial No. 696,428

1 Claim. (Cl. 248237) This invention relates to scafiolds and more particularly to the type of scaffoldadapted to be used in connection with repairs above slanting or gabled roofs and hung from ladders supported upon such roofs.

One object of the present inventionis the provision of such a scaffold which may be easily and quickly attached to a ladder, and when so attached-will form a support for a person and/ or aladder used .for reaching heights above such roof, as for instance a chimney or the side of a house. above the roof. 7 7

Another object of the invention is to provide a scaffold of the character referred to which may be adjusted to any slant of roof and is provided with means for securely locking same in adjusted position.

A'further object of the invention is to provide such a scaffold which is, although extremely I light in weight, nevertheless strong and rigid in structure and compactly foldable, so as to occupy a minimum of space when not in use.

Still another object is to produce a device of v the character described in which the maximum simplicity of construction and operation is secured.

Other objects and novel features will appear as the nature of the improvements is better understood, the invention consisting substantially in the novel arrangement and co-relation of parts herein fully described, and illustrated in the accompanying drawings, wherein similar reference characters are used to denote corresponding parts throughout the several views, and'then finally pointed out and specifically defined and indicated in the appended claim. g I

The disclosure made the basis of exemplifying the present inventive concept suggests a practi.:- cal embodiment thereof, but theinvention is not to be restricted to the exact details of this disclosure, and the latter, therefore, is to be understood from an illustrative, rather than a restrictive standpoint.

In carrying out a preferred embodiment of the Figure 2 is a side elevational view thereof; and

Figure 3 is a top plan view of the scaffold in folded position. a I

Referringnow to the drawings in detail, 5 indicates a scaifol d constructed in accordance with the present invention. The said scaffold comprises a framework having two longitudinal par- .allel bars fi connected by transverse bars 1- -8 along the under surface of the bars 6, and similar bars 9-H] on the upper surface of said bars 6. The transverse bar 9 carries a pair of spaced apart hinges ll (only one of which is shown in Figure 1) to which is pivotally connected one end of, a, working platform 92 by meansof a hinge pin l3. Theopposite end of the working'platform l2 carriesa crossrod or pin [4 adapted to engage rack teeth l5 'ofan adjusting rack 16. The said rack I6 comprises two angle bars [8 and 59 connected by a cross bar 20 at the.top, each one of the rack bars is provided with theteeth l5 to accommodate the working platform pin or rod 14 which may be releasably'locked in said teeth by a locking member 2! slidable on one of the rack bars and provided with a locking slot or notch 22. The rack I6 is pivotally mounted at its lower end on the transverse bar ID by means of hinges 23.

In practice when it is desired to use the scaffold for working on aside of the house or a chimney, a ladder 24 shown in dot and dash lines in Figures 1 and 2, is placed on one side of the slanting or gabled roof Z5, and then the hooks 26 carried by the frame members 6 are hooked over one of the ladder rungs 27. When so supported, the adjusting rack is swung upwardly and forwardly on its pivot and the working platform is likewise swung upon its pivot to any desired position at which the pin I4 is placed'in'a notch between two teeth l5 and locked in place by means of the sliding latch2l. V V

In the position described the working platform 12 is securely held in place and may readily support a workman,-his tools, etc., as well as a ladder 28 when itis desired to work upon or repair anyportionfof achimney'ZB or side'of a house; The working platform I2 is channel shaped and comprises a base 30 and sidewalls or flanges 3| against which the bottom of the ladder may be positioned without fear of its slipping off.

When it is desired to store the scaffold, all that is necessary is to unlatch the bar I 3, disengage same from the teeth I5, fold the rack back on the base and permit :the working (platform to be folded down. v

From the foregoing it will be seen that the present invention provides a very simple, inexpensive, yet highly useful scaffold which may be easily and rapidly erected in place on a ladder, for use in repairs made above slanting roofs or on chimneys in connection with such roofs, and one which may be readily folded up and disconnected from the ladder when it is desired to stor same away and will not occupy a great deal of space when so folded up.

It is apparent that the illustrations shown above have been given solely by wa of illustration and not by Way of limitation and that the above examples are subject to wide variations and modifications within the scope of the present invention. All such variations and modifications are to be included within the scope of the present invention.

What is claimed is:

A scaffold, comprising, in combination, a frame including spaced parallel side members and spaced parallel transverse members upon outer surfaces of said side members and connected with said side members; ladder-engaging hooks upon under surfaces of said side members, a working platform, hinge means upon one of said transverse members, said hinge means extending in the direction of the transverse members and being connected to one edge of said platform, a rack comprising two parallel angle irons spaced at a distance greater than the width of said platform and a top transverse member interconnecting said angle irons; other hinge means upon the other one of said transverse members, the length of the rack being greater than the distance between the two hinge means, said other hinge means extending parallel to the first-mentioned hinge means and in substantially the same plane andbeing connected to adjacent ends of cess fitting over an end of said rod, whereby said platform and said rack may be locked in a plurality of positions, said platform being situated substantially above the space between said side members and fitting when folded between said angle irons, said rod being located beyond said angle irons and engaging said side members when said platform and said rack are folded.

JOHN C. ROGGI-IE.

REFERENCES CITED The following references are of record in the file of this patent: J

France June 21, 1937

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