US1762659A - Scaffold bracket - Google Patents

Description

June 10, 1930. P. E. GOODWIN scAFFoLD BRACKET Original FiledJune 4, 1927 2 Sheets-Sheet l June l0, 1930. P. E. GOODWIN 1,762,659

SCAFFOLD BRACKET Original Filed June 4, 1927 2 Sheets-Sheet 2 lll HMI I4 35 lllllll l" Patented June 10, 1930 UNITED STATES PATENT OFFICE PERCY E; GOODWIN, OF EVANSVILLE, INDIANA, ASSIGNOR TO THE STEEL SGAFFOLDING GOMEANY, OF EVANSVILLE, INDIANA, A CORPORATION OF INDIANA SGAFFOLD BRACKET Original application filed June 4, 1927, Serial No. 196,547. Divided and this application filed October 25,

This invention relates to scaiiold brackets ofthe general class adapted for use on the walls of wooden buildings and vother structures to serve asV a supporting ymeans for planks lor platforms on which workmen may stand.

One of the objects rof the invention is, to provide a foldable scaiford bracket having an improved attaching bolt or connector which l0 will require boring or cutting of only a small hole through the sheathing in order to connect the bracket to the wall of the building, instead of neecssitating the cutting of a relatively large hole such as is necessary with those brackets having a hook to engage the studding. In practice the hole which has to be cut will only be five-eighths of an inch in diameter and, being small, it can be readily patched when the coat of stuccoing is applied,

whereas with those brackets employing a hook to engage the studding, it has been necessary to cut a hole some two by three inches in size which isdiiiicult to patch.

y In connection withthe present invention, it

is only necessary to provide a block through which the improved bolts connection passes, such block serving asa bearing piece for the handled nut employed ont the bolt.

Another object of the invention is to provide a foldable scaffold bracket provided with means whereby an improved toeboa'rd and hand rail attachment may, if desired, be attached thereto in such manner that it may be locked in upright position so that a toeboard and hand rail may be connected thereto, or,

be folded down on the bracket in' compact arrangement for handling or transportation.

The present application is a division of Serial No. 196,547, filed J une 4, 1927.

A practical embodiment of the invention is shown in the accompanying drawings, in which:

` Figure 1, is a perspective view of thescaffold bracket when extended, ready for use; 4 Fig. 2is a similar view showing the scaffold bracket in use on the wall of a wooden building, illustrating how the improved toeboard and hand rail attachment of my Patent No; 1,650,939 may be used in connection thereo0 with, if desired.

Serial No. 228,665.

Fig. 3, is a perspective view of the scaold bracket alone, when in folded arrangement;

Fig. 4, is a detail perspective view showing the manner in which the scaffold bracket is connected to the building when in use;

Fig. 5, is a detail view showing the pivot and lock; and

Fig. G, is a section on the line 6 6 of Fig. 5.

Referring iirst to Fig. 1, the scaffold bracket comprises a bar or support 1 provided with an upwardly projecting retainer 2 to prevent the plank or other platform supported by said bar from accidentally slipping off of it when the bracket is used alone. The bar is provided with holes 3, 4, whose purpose will presently appear.

The'main supporting braces or legs are shown at 5 and 6, being pivoted by means of a bolt 7 or rivet to the outer part of the bar 1. These braces have bent feet 8 which may have openings to receive nails driven into the wall of the building on which the bracket is used, or these openings may be omitted. The braces 5, 6, are preferablyl of angle iron for the sake of strength and they are connected by a cross piece 9 which is preferably riveted thereto and which maybe of angle iron. The supporting braces being spread apart to a considerable extent and rigidly connected by the cross piece 9, they afford a wide bearing on the side of the building and prevent lateral movement of the bracket.

A tie or hanger 10 straddles the bar 1 and is pivoted to the braces 5, 6, as shown at 11. As shown, this tie or hanger 10 is made of .a single piece of bent rod whose apex 12 1s suficiently broad to permit it to slide on the bar 1 when adjusting the bracket or when folding or extending it.

I wish it to be understood, however, that the tie or hanger 10 does not have to be made of a single piece nor is it necessary to pivot the hanger to the braces 5, 6 1n the specific manner 4shown at 11 where the ends of the tie or hanger are bent outwardly and are received in holes in the braces 5, 6.

It is also to be understood that the part of the tie or hanger which stladdles the bar 1 may be of any suitable construction and not,

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y1, thus preventing any twisting motion which would result in the walking of the feet 3 on the Wall of the building.v n

My present improvements reside in the improved. means for attaching the bar 1 to the building and in the provision of the holes 3 and 4, other features of the constructiony shown in Fig. 1 being substantially disclosed in the patent to Bonenberger and Goodwin No. 1,125,051.

*The improved attaching means f'or the scaffold bracket comprisesa bolt or member 13v which, as shown, is a flattened part 14 riveted or otherwise secured or fastened to the inner end of the bar 1 as shown at 15. Instead of usingk a separate member 13, the bar 1 may be provided with an integral mem-- ber 13.

The member 13 is provided with screw threads 16 for a considerable portion of its length and it carries a handled nut 17 en-V glaged with said screw threaded part.

The manner in which this connection is used is shown in Figs. 2 and 4. A hole, sayY five-eighths of an inch in diameter, if that be the size of the member 13, is bored through Y the studding 18 to which the sheathing 19 of shown in Fig. 2, when the handled nut has been yapplied and tighten-edup' against the block 20. The block 2O serves as a bearing bloek for the, handled nut 17 and distributes the strain yover a sufficient area of the studdin-g 113 to securely hold the bracket.

Avery considerable advantage is obtained by the use of this improved connection because it is only necessary to bore a small hole to enable the bracket to be attached to the building, whereas `with those brackets which employ a hook or special` connection adapted toengage around the studding, it is necessary tocut a hole having an area of several square inches, usually, a hole of at least two by three inches in size. f As thus far described, the bracket which is shown alone in Figs. 1 and 3, is intended for use by itself without the combined hand rail and toeboard attachment which is shown as connected thereto in Fig. 2.

The provision of the holes 3, 4, however, adapts the scadold bracket to be used in combination with the hand rail and toeboard attachment as shown in Fig. 2 so that the.

it is not necessary to detach the hinge bolt 26 which then acts as a pivot, enabling the complete scadold to be folded into compact form, inasmuch as the bolt 26y passes through` l hole 3. v Y n For the purpose of locking the bar 22 in upright position, there is provided an improved J-shaped locking bolt 27 which has its screw threaded shank passing through a hole 2S in the plate 23 and carryinga handled nut 29a. Between the nut and the palte 23 are washers 30. The hook part of the bolt is adapted to enter the hole 4 in the part 1 when. the n-ut 29 is tightened, thus. locking the bar 22' in the upright position shown in Figs. 2, 5, 6. As the J-shaped or hook-,shaped bolt is carried by the plate 23, it is only necessary to.' loosen the handled nut 29` su-iiciently to enable the hook of the bolt to be withdrawn from the hole 4, in order to unlock the bar 22, as the pivot bolt 26 need not be taken off. When thus unlocked, the entire combination bracketmay be folded, the parts being in compact relation, so 4that the bracket occupies only a minimum amount of space and can be readily` carried about or stacked with other brackets lfor transportation.y Y

lThe hook'shaped clamp bolts 34 and v35 having screw threaded shanks and provided with handled nuts 39, 41, are carried by the bar 22 and adapted to hold the hand rail 38 and the toeboard 37. Y

The scaffold or platform which is supported by the bars 1 of the different brackets shown in Fig. 1 which are connected to the side of the house or building, appears at 43 and, according to usual practice, may com'- prise planks or boards laid edge to edge.

It will be observed that while the scaffold bracket is shown in Fig. 2 as combined with means adaptedffor use in connection with the toeboard and hand rail attachment, in order to comply with lthe law in those localities where this protection is required, nevertheless, the scaffold bracket is intended to be used by itself, as shownin Fig. 1 and is then secured to the wall of the building as illustrated in Figs. 2 and 4, or, may be folded into compact form as shown in Fig. 3. J

What I claim is:

1. The combination with a scaold bracket comprising a horizontal supporting bar having means at one end to effect locking engagement with the wall of a building, and at its other end being provided with a pair of holes, of an upright bar having two fasteners, respectively detachably received in the said holes and locking the upright bar to the horizontal bar at the outer end of the latter, legs attached to the outer part of the horizontal bar inwardly of the two holes aforesaid, and extending in downwardly inclined diverging relationship below the horizontal bar and having their free ends adapted to bear against the wall of a building, and a hanger suspending the legs from the horizontal bar and freely slidable therealong when the scaffold bracket is being folded.

2. A scaffold bracket of the class embodying a horizontal bar, legs attached to the outer part of the horizontal bar and extending downwardly in inclined diverging relationship below the horizontal bar and having their free ends adapted to bear against the wall of a building, land a hanger suspending the legs from the horizontal bar and freely slidable therealong when the scaffold bracket is being folded, characterized by a screw threaded anchoring extension constituting a continuation of the horizontal supporting bar at its inner end and adapted to be passed through an opening in the wall of a building, and a tightening or retaining screw-threadednut carried by said screw threaded extension and adapted to engage the inside of the wall to which the bracket is applied, the aforesaid hanger being entirely independent of, and having no connection with, the aforesaid screw threaded anchoring extension.

In testimony whereof I aHiX my signature.

PERCY E. GOODWIN.

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