US1879244A - Scaffold support - Google Patents

Description

Sept. 27, 1932. F. HOFFMAN SCAFFOLD SUPPORT Filed' May 28, 1931 INVENTOR li'jfo ffman/ WITNESSES ATTORNEYS- Patented Sept. 27, 1932 UNITED STATES FRED HOFFMAN, OF WAIBASH, INDIANA SCAFFOLI) SUPPORT Application filed May 28, 1931. Serial No. 540,691.

This invention relates to means for attaching ladders or other forms of scaffolding to a pitched surface without injuring the ladder or the surface, the object being to provide 5 an improved structure which may be quickly applied and quickly removed and which will operate efficiently when in use.

Another object is to provide an attaching device for ladders or other scaffolding of 0 substantially any desired length whereby they may be properly held on a roof or other pitched surface, the supporting structure including a hook member fitting over the apex or gable of the roof.

5 A further object, more specifically, is to provide a support for a ladder or the like which includes a device to be removably connected with the ladder and also removably connected with the hook, the arrangement 0 being such that the device may be removably connected to the ladder at any point between the ends.

In the accompanying drawing,

Figure 1 is a fragmentary sectional view showing a part of the pitched roof with a ladder and support embodying the invention shown applied thereto.

Figure 2 is an enlarged side view of the scaffold support shown in Figure 1.

0 Figure 3 is a sectional view through Figure 2 on line 3-3.

Referring to the accompanying drawing by numerals, 1 indicates a building of any desired kind having a roof 2 which is decidedly pitched. Arranged on the roof 2 as shown in Figure 1 is a ladder 3 held in place by the scafiold support at, the hook 5 of which is hooked over the gable of the roof. The device 4 may be positioned at any point along the scaffolding or ladder 3, and consequently a long ladder may be used for a short roof if desired, the unnecessary part of the ladder projecting either above or below the roof.

As illustrated particularly in Figures 2 and 3, the support 4 is provided with what may be termed a body 6 and a gate 7. The body 6 has a side plate 8 and end plates 9 and 10. End plates 9 and 10 are adapted to be spaced farther apart than the width of the ladder 3, so that when the gate 7 is swung downwardly, the end plates 9 and 10 may be slipped over the 2 x 4 or other side member of the ladder 3. 5 As indicated in dotted lines in Figures 2 and 3, the gate 7 is then swung upwardly to the position shown in Figure 2, after which the hook 5 is secured in place by the bolts 11 and 12. If desired, the book could be secured in place before the device is placed on the ladder.

It will be noted that the screw 13 pivotally connects the gate 7 with -plate'1O while the gate is provided with an arc-shaped slot 14. for accommodating the small part of the screw 15 connected with the plate 9. If de-.

sired, the screw 15 could be provided with a kerf for the reception of a screwdriver, though'a smooth head is ordinarily suflicient as a-pair of pliers 'couldbe used'for tightening the screw and clamping the gate in an operative or closed position. After the gate has been closed, the thumb screw 16 is screwed down tightly against the ladder 3 and thereby the device is locked in the de sired position.

Any time it is desired to remove the device or shift the position thereof, thumb screw 16 is loosened and also screw 15 so that gate 7 may be swung to an open position and the device removed and replaced as desired. If the device is to be shifted only a short distance and between two rungs of the ladder, V

a loosening of set screw 16 will permit a sliding action to this extent whereupon screw 16 is again tightened.

Ordinarily, one of the supports is all that is needed fora ladder, but if desired, a support could be provided on each side bar of the ladder without departing from the spirit of the invention.

I claim:

1. A scaffold support including a hook, a substantially U-shaped body formed with a top and bottom plate and a side plate, a pair of bolts extending through said bottom plate and through part of said hook and nuts for said bolts for rigidly clamping the hook to the body, a set screw carried by the top plate positioned to pinch a part of the scaffold support and to force the same against said bottom plate, a gate on the opposite side to said side plate pivotally'mounted on said bottom plate and positioned to swing in a plane parallel to said side plate, and means carried by said top plate for detachably holding said gate in closed position.

2. A scaffold support comprising a body formed with aside. plate, atop plate integral with the, side plate, a bottom plate integral with the side plate, said bottom andtop, plates extending at rightanglestothe side plate, a gate, means for sWingab-ly connecting the gate to the bottom plate, said gate swing ihg in a plane parallel to the side plate, said gate having an arc-shaped slot at its upper end, a clamping member fitted into said slot,

said clamping member beingcarried by the said top plate, a clamping screw extending through said top plate and adapted to press against that part of the scaiiold fitting into 20 said body, a supporting hook and connecting means carried by said body for connectingthe hook to the body.

3. A scaffold support comprising a body formed with a side plate, a top plate integral with said side plate and extending substantially at right angles thereto, a bottom plate integral with said side plate and extending substantially parallel with the top plate, a gate pivotally mounted on said bottom plate and positioned to swing in a plane parallel to said side plate, a clamping member carried by said top plate interlocking with one end of said gate for clamping the gate against swinging movement, a clamping 33 screw extending through said top plate and adapted to press against that part of the seafl'old fitting into said body, a supporting hook and means carried by said body for connecting the hook to the body. 44 FRED HOFFMAN.

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