US2524302A - Scaffold - Google Patents

Description

J. M. BENSON Oct. 3, 1950 SCAFFOLD Filed July 8, 1946 2 Sheets-Sheet l Oct. 3, 1950 J, BENSON 2,524,302

SCAFFOLD Filed July 8, 1946 2 Sheets-Sheet 2 Patented Oct. 3, 1950 Jesse: Mack Benson,

Concord; Tenn., assignors to.

Sasgen Derrick:Co., Chicago, 111., a corporation of Illinois Applicationduly il, 1946, Serial No. 681,965

rolaim. (Cl. 304-46) This inventionrelates to, scaffolds and more particularly to scaffolds having improved scaffold brackets:

An object'of this invention is to provide animproved scaffold and scafiold brackets for use with the improved scafiold winch in my Patent No. 2,424,910.

Another object of this invention is to provide an improved bracket for scaffolds having hook eyes on the upper ends of the arms in which the winch may be attached and a loop on one side for supporting a guard rail.

Still another object of this invention is to provide an improved scalTold bracket which is light weight and compact in construction and in which the supporting side arms may be folded into the base of the bracket to provide for a compact package which may be readily transported with a minimum of space.

With the above and other objects in view, my invention consists in the arrangement, combination and details of construction disclosed in the drawings and specifications, and then more particularly pointed out in the appended claim.

In the drawings,

Figure l is a front elevation, partly broken away, of a scaffold constructed according to an embodiment of my invention,

Figure 2 is a vertical section, partly broken away, taken on the line 2-2 of Figure 1,

Figure 3 is a horizontal section taken on the line 3-3 of Figure 2,

Figure 4 is a vertical section through the bracket in the folded position,

Figure 5 is an enlarged detail plan view, partly broken away, of the end of the bracket in Figure 4,

Figure 6 is a vertical section, partly broken away, taken on the line 66 of Figure 2.

Referring to the drawings, the numeral Ill designates generally a scaffold constructed according to an embodiment of this invention. The scaffold III comprises floor planks I I supported between a pair of brackets I2 and a guard rail I 4 supported above the planks I I on the brackets I2.

The brackets I2 are formed of a, pair of oppositely disposed inverted L-shaped strips of metal angle I5 spaced apart by a short cylindrical or tubular spacer I6. The angle members I5 are disposed in face abutting relation with one side I! of each member extending outwardly at the upper end to provide a fiat base on which the planks I I may be supported. Bolts I8 along the length of the members I 5 extend through the vertical arms I9 thereof and through the spacers I6 and arefixed in position by nuts 29.

On the rear or outer end of the brackets I2 there is. provideda supportingrod 2| pivotally connected at their lower end between the angles I5. The rod 2| is substantially longer than one half the length of the angles I5 and is formed at its lower end with a loop 22 which is adapted to be closed loosely about the end spacer I6, whereby the rod 2| may pivot about the spacer I6 and in its folded position is adapted to lie between the angles I5. The upper end of the rod 2| is formed with a loop 24 in which a hook 25 beneath a winch 26 may be engaged in the raised or extended position of the rod 2|. A rectangular U -shaped loop 21 is fixed on the outer side of the rod 2| near the upper end thereof and is adapted to support a guard rail I4. A small loop 28 is fixed on the rod 2| intermediate the length thereof for supporting an auxiliary guard cable when desired.

A shorter supporting rod 29 is pivotally connected to the front or inner end of the angles I5 and is formed with a loop 39 on its lower end for engaging loosely about the front spacer I6. The rod 29 is formed at its upper end with a loop 3| in which the hook 25 depending from a winch 26 may be engaged. The rod 29 is substantially shorter than one half the length of the angles I5 so that the rods 2| and 29 may be enclosed between the angles I5 in their folded position. 7

On each end of the bracket I2 there is fixed an angle 32 having a vertical side closing the space between the angles I5 which angles 32 provide a stop for the rods 2| and 29 in their extended position to prevent the rods 2| and 29 from being pivoted beyond a vertical position as shown in Figure 2.

For transporting this scaifold support I2 from place to place, the rods 2| and 29 are folded inwardly to be enclosed within the space between the angles I5 with only the loops 2'! and 25 extending above the outline of the angles I5, thus providing a very compact and readily handled package, as shown in Figure 4.

In use as a scaffold the arms 2| and 29 are raised to a vertical position and a pair of brackets I2 may be spaced at any suitable distance apart below the planks II, thereby being adaptable to various lengths of scaffold planks II. Hooks 25 secured to winches 26 which are described in my copending application may be engaged in. the upper loops 24 and 3| in the rods 2| and 29 respectively, for raising and lowering the scaffold 10 by an operator on the scaffold. A guard rail l4 may be installed in the loops 21 and when desired a cable or rope may be engaged in the loops 28 as an auxiliary guard cable.

I do not mean to confine myself to the exact details of construction herein disclosed, but claim all variations falling within the purview of the appended claim.

What I claim is:

A scafiold supporting bracket comprising a pair of elongated oppositely disposed parallel extending angle members on which planks may be supported, means securing said angle members together in spaced apart relation longitudinally thereof, a first supporting rod having a loop formed on one end loosely extending between said angle members at one end of the latter, pivot means carried by said angle members extending through said loop for rookably connecting said rod to said angle members, a second supporting rod having a loop formed on one end extending loosely between said angle members at the other end thereof, pivot means extending through the loop of said second supporting rod for rockably connecting said second rod to said angle members, and bent tabs formed on the opposite ends of said angle members closing the space between the latter and engageable with the adjacent ones of said supporting rods for limiting the rocking of said rods away from said angle members.

JESSE MACK BENSON.

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

UNITED STATES PATENTS Number Name Date 673,384 Clark May 7, 1901 896,907 Haskell Aug. 25, 1908 1,085,607 Haynes Feb. 3, 1914 1,120,702 Erdman Dec. 15, 1914 1,141,749 Alley June 1, 1915 2,326,983 Sway Aug. 17, 1943 FOREIGN PATENTS Number Country Date 150,011 Great Britain Sept. 2, 1920

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